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Cutter carried on elongated probe-like member

Subclass of:

606 - Surgery

606001000 - INSTRUMENTS

606167000 - Cutting, puncturing or piercing

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
606171000 Recriprocating or oscillating cutter 44
Entries
DocumentTitleDate
20130030456SACROILIAC FUSION SYSTEM - An undercutting system for preparing a region between an ilium and a sacrum for sacroiliac fusion. The undercutting system includes a probe assembly and a cutting assembly. The probe assembly is operably mounted to the insertion apparatus. The probe assembly is moveable with respect to the insertion apparatus between a retracted configuration and an extended configuration. In the extended configuration at least a portion of the probe assembly extends laterally from the insertion apparatus. The cutting assembly is operably mounted with respect to the probe assembly and the insertion apparatus. The cutting assembly is movable with respect to the insertion apparatus between a retracted configuration and an extended configuration. In the extended configuration at least a portion of the cutting assembly extends laterally from the insertion apparatus.01-31-2013
20100076476SYSTEMS AND METHODS FOR CABLE-BASED TISSUE REMOVAL - Systems and methods for treating disc herniation include surgical and endoscopic access and removal of disc tissue. The tissue removal devices that may be used include flexible elongate members, such as a cable, that may be inserted into a vertebral disc and rotated to pulverize the disc material and facilitate its removal.03-25-2010
20100076475MOTORIZED SURGICAL INSTRUMENT - A surgical cutting and fastening instrument that is motorized. The instrument comprises in one embodiment a charge accumulator device, separate from a battery, that provides additional power to the motor under certain conditions. In addition, the motor may comprise multiple windings.03-25-2010
20100076474MOTOR-DRIVEN SURGICAL CUTTING INSTRUMENT - A motor-driven surgical cutting and fastening instrument that comprises an end effector, a shaft connected to the end effector, and handle connected to the shaft. The end effector may comprise a cutting instrument that, when actuated, longitudinally traverses the end effector to cut tissue clamped in the end effector. The handle may comprise an electric motor for actuating the cutting instrument and a motor control circuit for controlling the motor. The motor control circuit may comprise a power source connected to the motor for electrically powering the motor and a current control circuit, connected to the power source, for varying the current supplied to the motor from the power source. The current control circuit may vary the current supplied to the motor, and consequently, the output torque supplied by the motor, such that the motor has at least (i) a first, low power operational mode for a first portion of a cutting stroke cycle of the cutting instrument, and (ii) a second, high power operational mode for a second portion the cutting stroke cycle of the cutting instrument.03-25-2010
20130079805POWERED SURGICAL TISSUE CUTTING INSTRUMENT HAVING AN IRRIGATION SYSTEM - A surgical tissue cutting instrument comprises a tubular outer member, an inner member rotatably disposed within the outer member and having a cutting element, a handpiece, and an irrigation system. The irrigation system includes an irrigation channel composed of a first irrigation passage within the handpiece and a second irrigation passage within the thickness of the annular wall of the outer member, and a sleeve disposed over a front end of the handpiece and over the outer member adjacent an outlet opening of the second irrigation passage. The sleeve allows communication through the outlet opening of the second irrigation passage and an inlet port of the first passage. The inlet port is connectible with a source of irrigation fluid.03-28-2013
20130041392LOCKING FLEXIBLE SURGICAL INSTRUMENTS - A flexible-shaft surgical instrument has a compression member that is distally movable to provide a compression force between the compression member and a distal compression bearing to compress a plurality of links and rigidly lock a semi-rigid tube formed by those links at any of a variety of user-selectable predetermined positions. The semi-rigid tube is configured to be bent and locked at the user-selectable predetermined position and, upon proximal movement of the compression member, returned to an unlocked state without significant plastic deformation of the semi-rigid tube.02-14-2013
20130072951TISSUE HARVESTING, MINCING, AND TRANSPORT DEVICE - A device comprises a needle, probe, holster, and tissue collection chamber. A motor simultaneously powers a vacuum pump, translates and rotates a cutter, and translates a plunger. The needle includes a piercing tip and an interior shelf that divides the needle into a cutter lumen and lateral lumen. The cutter and shelf include apertures configured to mince a portion of a tissue specimen that has been severed by the cutter and forced through the apertures by compressive force from the plunger as well as vacuum force. The apertures of the shelf and the apertures of the rotating cutter cooperate to shear the tissue being compressed by the plunger. The minced tissue is then transported to the tissue collection chamber under vacuum force with the assistance of a fluid flush. Collected minced tissue may then be further processed as desired for a given medical treatment or procedure.03-21-2013
20130060272TISSUE SHAVERS - Various arthroscopic shavers are provided that minimize contact between bodily fluid and the shaver hand piece. Arthroscopic shavers generally include a cutting assembly mated to a hand piece. In one embodiment, the shaver includes a hub that connects the cutting assembly with the hand piece and has an exit port configured to transport cut tissue and fluid from the device. In another embodiment, the shaver includes a hub configured to retrofit existing shaver hand pieces having interior lumens for removing cut tissue and fluid. The hub further includes an exit port that diverts fluid away from the hand piece.03-07-2013
20120310265SPHINCTEROTOME ORIENTATION - A sphincterotome having a pair of ribs that are disposed equidistant from each other about an outer surface of a tubular member of the sphincterotome is disclosed. The pair of ribs is oriented perpendicular to a radial direction in which a cutting edge of a cutting wire disposed at a distal portion of the tubular member extends.12-06-2012
20120191118REMOVING TISSUE - Tissue can be removed from a patient with a catheter or other medical device having a cutting member. A source of suction can be coupled to the device for suctioning removed tissue through a lumen in the device and out of the patient's body.07-26-2012
20090270899SURGICAL TOOL SYSTEM - A surgical tool system comprising a handpiece and a cutting accessory that is releaseably secured to the handpiece. The handpiece has a gear assembly with two drive heads. The gear assembly turns the drive heads at different rotational speeds relative to each other. The cutting accessory is provided with one of two drive hubs. If the cutting accessory is provided with a first drive hub, the drive hub mates to a first one of the drive heads so as to turn of the speed of that head. If the cutting accessory is provided with a second drive hub, the drive hub mates to the second drive head so as to turn at the speed of that head. Thus, the speed at which the cutting accessory is actuated is a function of the associated drive head.10-29-2009
20090270898TISSUE REMOVAL DEVICE WITH HIGH RECIPROCATION RATE - Disclosed is a tissue removal device. The device includes an outer tubular body, an inner tubular body and a cutting edge on the inner tubular body. The outer tubular body includes a window, which may be opened or closed by moving the cutting edge. The cutting edge has a hardness that exceeds the hardness of the material of the inner tube. The cutting edge may have a Rockwell C hardness of at least about 50, while the inner tube has a Rockwell C hardness of no more than about 40. The cutting edge may be formed by a milling step, and the inner tube may be formed by a drawing step. Tissue severed by the cutting edge may be removed at a rate of at least about 1.8 grams per minute through the inner tube, and the outer tubular body may have an outside diameter of no more than about 3.5 mm.10-29-2009
20090270896TISSUE CUTTER WITH DIFFERENTIAL HARDNESS - Disclosed is a tubular cutting element for axial reciprocal movement within an outer tubular sleeve. The cutting element has an elongate tubular body, having a proximal end, a distal end and a cutting tip. The tubular body is formed in a drawing operation and the cutting tip is formed in a milling operation. The tubular body may have a Rockwell C hardness of no more than about 40, and the cutting tip may have a Rockwell C hardness of at least about 50.10-29-2009
20090270895LOW ADVANCE RATIO, HIGH RECIPROCATION RATE TISSUE REMOVAL DEVICE - Disclosed is a tissue removal device having an outer tube with a resection window and an inner tube disposed within the outer tube. The inner tube is slidable and rotatable relative to the outer tube so that the distal end of the inner tube moves back and forth across the resection window to sever tissue extending therethrough. The inner tube may be driven to rotate at a speed of at least about 1100 rpm, to axially translate at a rate of at least about 1.5 cps, and with an advance ratio of no more than about 0.25. The drive system for controlling axial reciprocation and rotation of the inner tube may be totally mechanical.10-29-2009
20090270894SURGICAL INSTRUMENT WITH INTERNAL IRRIGATION - A surgical cutting instrument comprises an outer tubular member and an inner tubular member. The outer tubular member includes a proximal section, an intermediate section, a distal section, and a side wall. The side wall defines a central lumen extending from the proximal section to the distal section. The side wall also includes means for conducting fluid within a sidewall of the outer tubular member from the proximal section to the distal section and includes a distal opening positioned to direct fluid at the bur and a treatment site. The inner tubular member is rotatably received within the central lumen. A distal end of the inner tubular member forms a bur extending distally beyond, and exposed relative to, the distal section of the outer tubular member.10-29-2009
20090270893MEDICAL DEVICE FOR TISSUE DISRUPTION WITH SERRATED EXPANDABLE PORTION - Apparatuses and methods for accessing and disrupting a tissue are disclosed herein. In one embodiment, an apparatus includes an elongate member. A distal end portion of the elongate member includes multiple elastically deformable arms that are configured to perform a medical procedure in a biological body. The elastically deformable arms collectively have an unconstrained expanded configuration. Each of the elastically deformable arms has a serrated edge portion. The distal end portion of the elongate member can be rotated while disposed within a biological body such that the serrated edge portion of the arms disrupts tissue within the biological body. The elastically deformable arms can collectively have a collapsed configuration in which the elastically deformable arms define a smaller outer diameter than an outer diameter of the elastically deformable arms in the unconstrained expanded configuration.10-29-2009
20090270892STEERABLE MEDICAL DEVICE FOR TISSUE DISRUPTION - Apparatuses and methods for accessing and disrupting a tissue are disclosed herein. In one embodiment, a method includes inserting a distal end portion of a medical device into a biological body such that a cutting member disposed at a distal end of the medical device is at a first location within the biological body. A tissue is disrupted at the first location within the biological body. The distal end portion of the medical device is reconfigured from a first configuration in which the distal end portion of the medical device has a first curvature to a second configuration in which the distal end portion of the medical device has a second curvature different than the first curvature and the cutting member is at a second location within the biological body. A tissue is then disrupted at the second location within the biological body.10-29-2009
20120116434Scissors Assembly - An endoscopic scissor instrument includes an elongate hollow member, an actuator that moves axially through the hollow member, and first and second scissor blades with respective cutting surfaces. At least one of the scissor blades is rotatably coupled to the hollow member adjacent its distal end. At least one of the scissor blades includes a base supporting a resilient leaf-spring portion that includes a respective cutting edge. The resilient leaf-spring portion extends from the base in a cantilevered arrangement and generates a spring force acting on the respective cutting edge such that in a loaded state there is an automatic preload force imparted between the cutting edges of the scissor blades to maintain a consistent and continuous mating force between the two opposed sharpened cutting edges preferably over the complete range of rotational movement of the scissor blades.05-10-2012
20130165959ADJUSTABLE RESECTION DEVICE AND RELATED METHODS OF USE - A medical device and related method of use for resecting a tissue. The medical device may include an elongate member having a proximal end, a distal end, and a lumen extending therebetween. The elongate member may include a distal portion defining a cavity having an opening. In addition, a mechanism may be configured to adjust a volume of the cavity by altering a depth of the cavity.06-27-2013
20130165960System and Methods of Using Image-Guidance for Providing an Access to a Cochlear of a Living Subject - A system and methods for providing an access to a cochlea of a living subject. In one embodiment of the present invention, a method comprises the steps of operating a surgical instrument towards a region of interest of the living subject for opening an access to the cochlea of the living subject from the lateral edge of the skull of the living subject to the cochlea of the living subject, and intra-operatively monitoring at least a part of the surgical instrument so that the surgical instrument is operated substantially along a predetermined path.06-27-2013
20120232571SURGICAL INSTRUMENT ASSEMBLY - A surgical instrument assembly configurable for performing a dermatotomy in a percutaneous procedure and further configurable for performing cuts in open surgery includes a pointed scalpel blade and a hollow sheath body disposed to encapsulate the pointed scalpel blade inside a longitudinal instrument cavity to protect a user. The hollow sheath body is supported for longitudinal translation with respect to the scalpel blade. The hollow sheath may be positioned and locked at a first position to completely encapsulate the scalpel blade inside the instrument cavity for safe handling. The hollow sheath body is movable to second and third positions with different lengths of the surgical instrument extending out through a front face of the hollow sheath body. A compression spring biases the hollow sheath body toward the first safety position.09-13-2012
20110282373Instrument for Debriding Fistula and Applying Therapeutic Cells - A treatment instrument comprises an end effector and a plunger. The end effector comprises a plurality of cutting features and an interior cavity. At least a portion of the plunger is slidably positioned within the interior cavity of the end effector. The plunger comprises a distal head attached to the distal end of a central shaft. The plunger is configured to rotate within the end effector, and comprises a cutting member that is operable to mince tissue specimens captured by the cutting features of the end effector. An alternative treatment system comprises an end effector, a plunger, and a plug. The central shaft of the plunger and the plug are slidably located within an inner tube of the end effector, with the plug being positioned distal to the central shaft.11-17-2011
20110282372Tissue Dicing and Particle Separation Device - A tissue dicing and separation device comprises a housing having an interior that receives tissue for dicing and separation. The device includes a blade assembly connected to a motor and solenoid. The solenoid reciprocates the blade assembly while the motor clocks the blade assembly during each reciprocation cycle. This reciprocating and clocking action of the blade assembly dices and/or minces the tissue. The housing is filled with a fluid and then the blade assembly is continuously rotated to create a vortex within the housing. The vortex causes the diced tissue particles to separate by particle size. Outlets at different positions along the housing permit withdrawal of a slurry of fluid and tissue particles with the tissue particles having a desired size range. The obtained slurry may be used in conjunction with a fistula plug treatment device and method.11-17-2011
20120109172SELECTIVE TISSUE REMOVAL TOOL FOR USE IN MEDICAL APPLICATIONS AND METHODS FOR MAKING AND USING - The present disclosure relates generally to the field of tissue removal and more particularly to methods and devices for use in medical applications involving selective tissue removal. One exemplary method includes the steps of providing a tissue cutting instrument capable of distinguishing between target tissue to be removed and non-target tissue, urging the instrument against the target tissue and the non-target tissue, and allowing the instrument to cut the target tissue while automatically avoiding cutting of non-target tissue. Various tools for carrying out this method are also described.05-03-2012
20110288573ROBOTICALLY-CONTROLLED MOTORIZED SURGICAL CUTTING AND FASTENING INSTRUMENT - A surgical cutting and fastening instrument. The instrument comprises an end effector that has a shaft coupled thereto that is coupled to a robotic system. A tool mounting portion includes an electric, DC motor connected to a drive train in the shaft for powering the drive train. A power pack that comprises at least one charge-accumulating device connected to the DC motor for powering the DC motor is provided.11-24-2011
20120191116SURGICAL CUTTING INSTRUMENT WITH DISTAL SUCTION CAPABILITY - A surgical instrument having a first cutting blade and a second cutting blade that rotates within the first cutting blade during a cutting operation to cause cutting windows of the cutting blades to remove tissue from a patient also includes a suction passage forming member disposed over a suction aperture of the first cutting blade. The suction passage forming member includes an inlet, an outlet and a passage between the inlet and the outlet, the outlet communicating with the suction aperture, and the inlet facing distally. The surgical instrument can be used as a suction tool by applying a vacuum through an internal bore of the second cutting blade while the second cutting blade is stopped from rotating with the cutting windows of the first and second cutting blades misaligned with each other so that the vacuum is applied through the suction aperture and the suction passage forming member.07-26-2012
20120191117SURGICAL CUTTING INSTRUMENT WITH DISTAL SUCTION CAPABILITY - A surgical instrument includes first and second cutting blades, each including a tubular body having a proximal end and a distal end, with a cutting window disposed at a side of each cutting blade near its distal end. The second cutting blade rotates inside of the first cutting blade to cut tissue while a vacuum is applied through an internal bore of the second cutting blade. The distal end of each of the cutting blades includes a suction aperture through which a longitudinal axis of the cutting blades extends. The surgical instrument can be used as a suction tool in which the vacuum is applied through the suction apertures by applying the vacuum through the internal bore of the second cutting blade while the second cutting blade is stopped from rotating with the cutting windows of the first and second cutting blades misaligned with each other.07-26-2012
20110295295ROBOTICALLY-CONTROLLED SURGICAL INSTRUMENT HAVING RECORDING CAPABILITIES - A surgical instrument. The surgical instrument includes an end effector that comprises a staple channel and an anvil that is movably translatable relative to the staple channel. A tool mounting portion is configured to interface with a robotic system and operably communicate with the end effector. The instrument further includes a first sensor that has an output that represents a first condition of a portion of the robotic system A second sensor has an output that represents a position of the anvil. An third sensor has an output that represents a position of a reciprocating knife within the end effector. An externally accessible memory device communicates with the first, second and third sensors.12-01-2011
20120089165SCALPEL, IN PARTICULAR FOR OPHTHALMOLOGIC APPLICATIONS - A scalpel, in particular for ophthalmologic applications, comprising a handle head and a blade, wherein the blade, which includes a blade shank and a blade face, is inserted into a handle head of the handle, and at least one cutting edge is formed on the blade face, wherein the blade shank is configured together with the blade face as a body on which a continuous smooth rear surface is formed, whereby the front of the body opposite from the rear surface forms a cylindrical surface in the area of the blade shank and forms the top of the blade in the area of the blade face, and the end of the handle head has two surfaces that are slanted with respect to each other and that abut, like a roof edge, in an edge that is perpendicular to the axis of the handle, and whereby, in a first of the slanted surfaces, there is an opening for inserting the blade, whereby the inserted blade comes to lie in the opening in such a way that the smooth rear surface is flush with the first slanted surface.04-12-2012
20090292304POWERED SURGICAL HANDPIECE WITH AN ANTENNA FOR READING DATA FROM A MEMORY INTEGRAL WITH A CUTTING ACCESSORY ATTACHED TO THE HANDPIECE - A powered surgical handpiece that includes a motor for actuating a cutting accessory. The handpiece has a housing with a bore for receiving the cutting accessory and a coupling member internal to the bore that releasably engages and actuates the cutting accessory. A coil is mounted to the housing adjacent the bore. More particularly, the coil is located so that when the cutting accessory is seated in the bore, the coil is able to exchange signals with a complementary coil integral with the cutting accessory. A locking assembly mounted to the housing releasably holds the cutting accessory in the bore.11-26-2009
20120035638APPARATUS FOR SURGERY - An apparatus (02-09-2012
20100121365SURGICAL BUR WITH ANTI-CHATTER FLUTE GEOMETRY - A surgical bur including a shaft with a bur head. A number of flutes are formed on the bur head. Each flute has a cutting edge. Chamfer surfaces form the front, distally directed faces of some of the burs. The flutes without chamfer surfaces having cutting edges emerge from the bur head at locations relatively close to the distal end tip of the head. The flutes over which the chamfer surfaces extend have cutting edges that start, extend proximally rearward, from locations that are, spaced proximal from the distal end tip.05-13-2010
20120109174METHODS AND DEVICES FOR REMOVING TISSUE FROM A PATIENT AND PLACING A MARKER IN THE PATIENT - The device is used to remove tissue from a patient and to also place a marker in the patient. The device has an opening through which tissue enters the device. The tissue which enters the opening is cut and the tissue is removed. The device may be used a number of times to remove a number of tissue masses. The device also includes a marker which the user may release in the patient at the desired time.05-03-2012
20120109173SYSTEM FOR TREATING THE PROSTATE - The invention comprises a system to alleviate conditions such as prostate cancer, benign prostatic hyperplasia (BPH), and the like. The system includes a probe for mechanically cutting tissue and a device for simultaneously tamponading, inducing hemostasis, and dilating a plurality of lumens while minimizing inflammation. The tamponading device has a plurality of balloons configured for inflation with a coolant fluid. Other components of the system include a luminally protective sheath, a microscopic end cauterizing probe, a surgical console, an identification-sensitive self-sealed cassette, and a plurality of flexible tubing lines with pinch valves thereon.05-03-2012
20110172691METHOD AND APPARATUS FOR TISSUE RESECTION - A resection device includes an elongated probe shaft and a tissue resection member disposed at a distal end of the elongated probe shaft. The tissue resection member has a cutting surface configured for being placed in contact with tissue. In one aspect of the invention, at least one ejection port is located adjacent to the cutting surface of the tissue resection member, wherein the at least one ejection port is coupled to a source of a polymerizable hemostasis-promoting material that is delivered to the resection site of interest. In certain embodiments, polymerization of the hemostasis-promoting material may be accelerated by application of heat, radiofrequency energy, or ultra violet light.07-14-2011
20110172690Balloon Catheter for Use with a Surgical Coring System - A balloon catheter for use with a surgical coring system for off pump surgery, includes various shaped balloon portions which are adapted to seal an apical hole in the left ventricle of a patient's heart.07-14-2011
20090088786Method of Performing a Suprapubic Transurethral Cystostomy and Associated Procedures and Apparatus Therefor - A suprapubic transurethral cystotomy apparatus and method of forming a surgical opening therewith. The apparatus includes an elongate tubular body including a proximal portion and a distal portion inclined relative to one another. The distal portion extends along an axis to an end configured for receipt through a urethra. An elongate arm has a first end operably attached to the proximal portion of the tubular body and a second end providing an indicator establishing an axis aligned coaxially with the axis of the distal portion. A surgical opening is formed with a cutting member being extended along the axis of the indicator.04-02-2009
20090287234MEDICAL HANDPIECE - The medical handpiece of the present invention includes a cutting tool having a flexible shank and a cutting bur, a plastically deformable tubular casing for the cutting tool, a handpiece body detachably holding the cutting tool, bearing members disposed in the casing, an inner intervening member for receiving the shank, and an outer intervening member arranged around the inner intervening member. The inner and outer intervening members are composed of a plurality of segments, and each segment is arranged between or on distal or proximal side of the bearing members. Each segment of the outer intervening member is further composed of a plurality of sub-segments. Annular members having the outer diameter that is larger than that of the outer intervening member are arranged between the sub-segments of the outer intervening member. The present handpiece provides improved operationality since shaking is hardly generated even when the casing is flexed.11-19-2009
20090270897METHODS OF HIGH RATE, LOW PROFILE TISSUE REMOVAL - Disclosed are methods and devices for removing tissue from a site in a hollow organ, where the device has a low crossing profile and is capable of removing tissue at a high rate of speed. The device includes an elongate outer tube with a side opening and an inner tube moveably coaxially positioned within the outer tube. Tissue drawn into the side opening can be severed by moving the inner tube across the opening. Tissue may be removed through the device at a rate of at least about 1.4 cc per minute, through a lumen having a cross-sectional area of no greater than about 12.010-29-2009
20110270293POWERED SURGICAL TISSUE CUTTING INSTRUMENT HAVING AN IRRIGATION SYSTEM - A surgical tissue cutting instrument having an irrigation system comprises an elongate tubular outer member having a proximal end, a distal end and an opening at the distal end, an elongate inner member rotatably disposed within the outer member and having a proximal end, a distal end and a cutting element at the distal end exposed from the opening, a handpiece mounted to the proximal ends of the outer and inner members, and an irrigation system comprising an irrigation channel composed of a first irrigation passage within the handpiece and a second irrigation passage within the thickness of the annular wall of the outer member, and a sleeve having a rearward end disposed over a front end of the handpiece and a forward end disposed over the outer member adjacent an outlet opening of the second irrigation passage near the distal end of the outer member. The sleeve is disposed over the outer member with a snug fit while allowing communication through the outlet opening of the second irrigation passage, whereby the irrigation channel is enclosed and sealed between an inlet port of the first irrigation passage and the outlet opening of the second passage. The inlet port is connectible with a source of irrigation fluid for flow through the irrigation channel to be discharged from the outlet opening near the distal end of the outer member.11-03-2011
20080249551MANIPULATOR SYSTEM AND CONTROL APPARATUS - A manipulator has an operation command unit and an exchangeable working unit. The working unit comprises an end effector operable under actions of a control apparatus, and an ID retaining section holding an ID for individualized discrimination of the working unit. The control apparatus includes an ID identification section for identifying the ID and for determining whether the working unit is connected to the operation command unit, an origin point recognition section for recognizing whether the end effector is in a prescribed origin point position or in a non-origin point position, and a warning section which generates a detachment warning when it is determined that the end effector has been detached from the operation command unit, in the event it is determined that the end effector is in a non-origin point position.10-09-2008
20120296358CORING KNIFE - A coring knife can be used to make a circular incision. The coring knife includes an abutment that is inserted into an initial slit through the heart wall. The abutment can be inserted into the slit while oriented in a direction that minimizes its insertion profile. After insertion, the abutment is reoriented by turning a key so that its abutment surface faces toward a circular cutting edge of the coring knife on the other side of the heart wall. The circular incision through the heart wall is made by pressing the circular cutting edge of the coring knife against the abutment.11-22-2012
20100185222Vacuum-Assisted Microscale Cutting Device - A vacuum-assisted microscale cutting instrument applies a vacuum pressure to pull an area of tissue towards a microknife. The cutting instrument can be configured to make one or more stabbing cuts or a slicing cut, and the housing of the instrument is shaped to address any of a variety of tissue geometries to allow a vacuum seal to be created therewith. To achieve a consistent cut depth in the tissue, a depth stop may be used to prevent the knife from cutting deeper than a predetermined depth.07-22-2010
20120143234SYSTEMS AND METHODS FOR ENDOLUMINAL VALVE CREATION - A device for manipulating tissue at a vessel includes an elongated member having a proximal end and a distal end, a guide member at the distal end of the elongated member, the guide member having a blunt distal tip for engagement against an interior wall of the vessel, and a tissue cutting device at the distal end of the elongated member, wherein the tissue cutting device has a sharp tip that is proximal to the blunt distal tip of the guide member.06-07-2012
20120197279UP CUTTING KNIFE WITH SUCTION - An up-cutting knife that has particular application for minimally invasive spinal surgical procedures. The knife includes an elongated tube that is operable to be inserted through a tubular retractor used in minimally invasive surgical procedures. One end of the elongated tube includes a curved head portion having a cutting blade formed on a top surface thereof and a suction port, and an opposite end of the tube is coupled to a handle having a chamber. A suction device can be coupled to an outlet port in the handle that causes blood and other surgical material to be drawn through the tube and out of the handle.08-02-2012
20110144679TROCAR DEVICE - A surgical device is described. The surgical device may comprise a rotatable cutter configured to cut tissue for insertion of a cannula, and a first driver configured to be driven by a motor arrangement and to rotate the cutter. The surgical device may further include, for example, the cannula, at least one of the rotatable cutter and the first driver being disposed in a bore of the cannula. In one embodiment, the rotatable cutter may include an auger having a cutting thread. In another embodiment, the rotatable cutter may include a disk-shaped blade.06-16-2011
20110144677Methods and Systems for Bypassing an Occlusion in a Blood Vessel - Methods and systems for re-entering the true lumen of a vessel after subintimally bypassing an occlusion in a blood vessel. A guidewire is positionable within a subintimal tract in a wall of the blood vessel with a distal end located beyond the occlusion. A hollow lumen of the guidewire includes a retractable blade slidably exposable adjacent a distal end thereof for rotary cutting or scoring the intima layer of the vessel wall to create a transverse cut or line of weakness in the intima. A balloon catheter is subsequently trackable over the guidewire and once inflated tears or otherwise ruptures the transverse cut, thereby creating or enlarging a passageway into the true lumen of the blood vessel beyond the occlusion.06-16-2011
20090143807Percutaneous Devices for Separating Tissue, Kits and Methods of Using the Same - The disclosure describes devices for separating a first tissue from a second tissue at a surgical site, comprising, a hollow body having a distal end and a proximal end, wherein the distal end further comprises an upper separation member extendable laterally from hollow body at a first angle; an inner member slidably disposed within the hollow body, wherein the distal end of the inner member has a lower separation member extendable laterally from inner member at a second angle, wherein the upper separation member and the lower separation member have a first configuration and a second configuration into a tissue in the working zone on the first lateral side of the median plane. Additionally, methods for using the device and kits containing the device are disclosed.06-04-2009
20100298855Surgical tool arrangement and surgical cutting accessory for use therewith - A surgical tool arrangement for performing endoscopic surgical procedures which includes a powered handpiece and a cutting accessory which detachably connects to the handpiece and incorporates multiple blade configurations or styles into one accessory. The accessory includes a cutting element which rotates within an outer housing element, wherein each element has a cutting window at its distal end, and one of the cutting windows has two sides which have differently configured cutting geometries.11-25-2010
20090082797DEVICES AND METHODS FOR REMOTE SUTURE MANAGEMENT - Described here are devices and methods for suture management. In some variations, the devices comprise an elongate tubular member having a proximal end, a distal end, a lumen therebetween, a cantilever blade positioned near the distal end of the elongate tubular member, and an expandable member positioned adjacent the cantilever blade for actuating the cantilever blade. Also described are devices comprising an elongate tubular member having a proximal end, a distal end, a lumen at least partially therebetween, and an aperture in a wall thereof for passage of a suture therethrough. These devices further comprise a blade connected to a blade housing disposed within the lumen, where the blade is oriented parallel to the longitudinal axis of the lumen. The blade and blade housing may be slidable within the lumen, or an inner shaft for may be slidable within the lumen. Methods of using the devices are also described.03-26-2009
20090076534ACCESSING DATA STORED IN A MEMORY OF A SURGICAL INSTRUMENT - A process and system are disclosed for downloading sensor data, stored in a memory device of a surgical cutting and fastening instrument, to an external or remote computer device. The process may involve storing data from one or more sensors of a surgical cutting and fastening instrument in a memory device of a control unit of the surgical cutting and fastening instrument during a surgical procedure involving the surgical cutting and fastening instrument. Next, after the surgical procedure, a data link between the control unit and the remote computer device is established. Then, the sensor data can be downloaded from the control unit to the remote computer device.03-19-2009
20080262525TISSUE PENETRATION AND GRASPING APPARATUS - A tissue grasping apparatus includes a control member, an elongated shaft, and a tissue penetrating and grasping member attached to the distal end of the elongated shaft. An activation mechanism provides an user-operable connection between the control member and the tissue penetrating and grasping member. In an embodiment, the tissue penetrating and grasping member includes a rigid penetrating member that is rotatably attached to the distal end of the elongated shaft. In an embodiment, the activation mechanism includes a flexible drive wire attached to the penetrating member.10-23-2008
20110144680Coring Knife - A coring knife can be used to make a circular incision. The coring knife can include an abutment that can be inserted into heart tissue. The circular incision is made by pressing the circular cutting edge of the coring knife against the abutment.06-16-2011
20130012973MICRO-RESECTING AND EVOKED POTENTIAL MONITORING SYSTEM AND METHOD - Surgical micro-resecting and evoked potential monitoring system and method. The system includes a micro-resecting instrument, handpiece, and evoked potential monitor. The instrument includes an outer tube forming a cutting window at which a cutting tip of an inner member is located. A hub assembly rotatably maintains the inner and outer members. An electrically non-conductive material covers a region of the outer tube, and wiring is connected to an exposed surface of the outer tube. The instrument defines a probe surface proximate the cutting window as part of an electrical pathway with the wiring. The hub assembly is powered by the handpiece, and the wiring is connected to the evoked potential monitor. Evoked potential monitoring is performed at the probe surface via stimulation energy delivered along the electrical pathway, and tissue/bone resection occurs with rotation of the cutting tip.01-10-2013
20090209991Surgical instrument for grasping and cutting tissue - A surgical instrument for cutting and grasping tissue comprising a handle assembly, an elongated member and first and second jaws. A first movable member moves the second jaw in a first direction about a first pivot axis in a grasping action and a second movable member moves the second jaw in a second direction different than the first direction and about a second pivot axis in a cutting action. A switch is positioned at the proximal portion of the instrument and a selecting member is actuated by movement of the switch, the selecting member movable between a first position to enable movement of the second jaw in the first direction and prohibit movement in the second direction and a second position to enable movement of the second jaw in the second direction and prohibit movement in the first direction.08-20-2009
20090248052Automated Assembly Device to Tolerate Blade Variation - An automated device facilitates the assembly a surgical instrument that includes a knife with a high aspect ratio. The automated device includes a fixture for restraining a subassembly of the surgical instrument that includes the knife. A blade grip on the device is movable relative to the fixture, and is configured to urge the knife into a restrained position in the subassembly suitable for the subsequent assembly of an additional instrument component. A grip actuator is provided to move the blade grip.10-01-2009
20120197280SURGICAL ENDOSCOPIC CUTTING DEVICE AND METHOD FOR ITS USE - A surgical endoscopic cutting device includes cutting elements fitted in a protective tube. The device has an inlet for fluid, a discharge outlet for tissue and fluid, and a further outlet that discharges most of the fluid.08-02-2012
20080319467Thin bladed obturator - A process for manufacturing an obturator blade for a surgical obturator includes the steps of providing an obturator blade blank, pressing the blade blank to form intersecting surfaces adjacent one side, preferably, both sides, of the blade blank and forming a cutting edge adjacent an area of intersection of the intersecting surfaces to thereby form an obturator blade for incorporation in a surgical obturator. The step of pressing preferably includes the step of coining the blade blank with at least one coining die to, e.g., form at least one arcuate surface adjacent the one side of the blade blank. The at least one arcuate surface is one of the intersecting surfaces. More preferably, the step of coining includes forming arcuate intersecting surfaces adjacent the one side of the blade blank. The arcuate intersecting surfaces may be substantially concave intersecting surfaces. Alternatively, the step of coining includes forming substantially planar intersecting surfaces adjacent the one side of the blade blank.12-25-2008
20100185223SWITCHING STICK WITH HOODED BLADE - A surgical switching stick is described. The switching stick includes a handle member, a shoulder continuous with the distal end of the handle member and progressively decreasing in girth toward a distal end of the switching stick, a curved tip located at a distal end of the shoulder and defining a space between an inner curved portion of the curved tip and the shoulder, and a blade disposed in the space. Methods for using the switching stick for controllably widening an incision are also described.07-22-2010
20110238099Arthroscopic Resection Devices - The present disclosure relates to a resection device. The resection device includes an outer tubular member; and an inner tubular member disposed within the outer tubular member, the inner tubular member including a burr having a body with flutes extending along a length of the body, the flutes including parabolic wave patterns located along surface edges of the flutes. In an embodiment, the parabolic wave patterns extend along entire lengths of the flutes. Other resection devices are also disclosed.09-29-2011
20100234867SURGICAL CUTTING ACCESSORY WITH AN INLET PORT INTO WHICH IRRIGATING FLUID IS FLOWED - A surgical cutting accessory that includes inner and outer tubes. A cutting feature is attached to the inner tube. The proximal end of the inner tube is connected to an inner hub. The inner hub has features for engaging a drive shaft integral with a handpiece to which the accessory is attached. The outer hub has features that facilitate the removable coupling of the hub to the handpiece. The outer hub is formed with a bore through which the inner tube extends. The outer hub also has an inlet port that extends from an outer surface of the hub to the main bore. Irrigation fluid can be flowed through this port into the annular space between the inner and outer tubes. A seal is located adjacent the inlet port.09-16-2010
20100228275PROBE FOR CARPAL TUNNEL RELEASE TOOL OR TISSUE DISSECTION - A probe for a surgical instrument used for cutting selected tissue in a body cavity while under visual inspection, e.g., a surgical tool for the release of the transverse carpal tunnel ligament, has a profile where the flat top surface of the probe has a wider width dimension than the lower surface of the probe. Thus, the sides of the lower surface are sloped or curved inward such that all points below the flat top surface at any particular point on the first and second sides of the flat top surface have a width that is smaller than the width dimension of the flat top surface. The degree of sloping or curving inward will cause tissues to be moved downward (instead of upward) when the probe is inserted, and will provide for generating an upward force that firmly holds the probe against the tissue to be cut and a downward force on the surrounding tissue below the probe.09-09-2010
20130123822Surgical Instrument with Stowing Knife Blade - A surgical instrument with a stowing knife blade includes an elongated shaft, an end effector coupled to the shaft and including two opposed jaws, a housing included in one of the jaws, a first member mounted in the housing and movable distally, a knife pivotally coupled with the first member, and a second member. The knife is configured to cut when advanced distally. The first and second members are moved distally at the same rate during a cutting motion of the knife and the second member blocks a rotation of the knife relative to the first member during the cutting motion of the knife. After moving through the first distance, relative movement between the first and second members occurs so as to permit or induce the previously blocked rotation of the knife so that the knife can be stowed.05-16-2013
20100211090Medical Instrument For Cutting Tissue - A medical instrument for cutting tissue has a tubular outer shaft having at least one outer shaft opening provided with at least one outer shaft blade. A tubular inner shaft is rotatable housed in the tubular outer shaft, the tubular inner shaft has at least one inner shaft opening provided with at least one inner shaft blade cooperating in a cutting action with said outer shaft blade. Said at least one inner shaft opening being curved and has a curved longitudinal central axis when viewed on a plane of projection running parallel to said rotation axis.08-19-2010
20100198242ENDOSCOPIC CUTTING INSTRUMENT WITH AXIAL AND ROTARY MOTION - Disclosed herein is an endoscopic surgical assembly having improved cutting efficiency. In particular, the present invention provides an endoscopic shaver assembly configured for automated axial as well as rotational motion so as to enhance tissue resection.08-05-2010
20090112245Device and method for the performance of ophthalmological operations - The invention relates to a device for performing ophtalmological operations, especially for treating glaucoma. Said device comprises a probe in which a suction channel is arranged. A cutting tool is arranged in the suction channel, by which means separating tissue extending to Schlemm's canal and being sucked into the suction channel can be removed. The device enables openings to be created between the front chamber and Schlemm's canal in a targeted and careful manner.04-30-2009
20130138129Coupling Mechanisms for Surgical Instruments - A surgical instrument includes a shaft defining a longitudinal axis therethrough and having an end effector assembly disposed at a distal end thereof. The shaft includes first and second shaft components that are releasably engageable with one another. A drive sleeve is disposed within the shaft and is longitudinally translatable relative to the shaft to transition the end effector assembly between a first state and a second state. The drive sleeve includes first and second drive sleeve components that are releasably engageable with one another. A coupling mechanism includes one or more shaft cantilever springs configured to releasably engage the first and second shaft components to one another and one or more drive sleeve cantilever springs configured to releasably engage the first and second drive sleeve components to one another.05-30-2013
20130144317Position feedback control for a vitrectomy probe - A method of controlling a surgical system using position feedback control, includes selectively operating a cutter having a cutting mechanism, with the cutting mechanism having an inner cutting tube and an outer cutting tube. The outer cutting tube has a tissue-receiving port formed therein, and the inner cutting tube has a cutting edge axially displaceable relative the tissue receiving port to cut tissue therein. The method also includes sensing the displacement of the inner cutting tube relative to the outer cutting tube with a sensor and changing operational timing of a probe driver based on the displacement sensed by the sensor.06-06-2013
20130144318SURGICAL SET OF INSTRUMENTS FOR PRECISION CUTTING - A method and set of instruments are disclosed particularly useful for carpal tunnel surgeries that allow a precision cut in the transverse carpal ligament (TCL) without direct vision or exposure of the ligament, except for its most proximal edge, but with guidance and safety of the cutting knife, eliminating or, at least very much decreasing, the probability of cutting lines in the wrong direction and inadvertent (iatrogenic) lesions to the surrounding structures. In one preferred embodiment the instrument comprises: a uniquely shaped cannulated guide rod, through which passes a flexible metal guide needle (06-06-2013
20090143808Guided Tissue Cutting Device, Method of Use and Kits Therefor - The present invention relates to a guided tissue cutter configured to receive a cutter adapted to cut a target, and an elongate channel along the length of the tissue cutter adaptable to slide or rotate along or around an elongate member, The elongate member can be a medical device. The tissue cutter can comprise one or more stop members that permit the cutter to penetrate a predetermined region of a target tissue to a predetermined depth and to inhibit further penetration of a tissue beyond the predetermined region of the target tissue. The tissue cutter can be configured to clip or snap on and off of the elongate member.06-04-2009
20090143809METHOD AND APPARATUS FOR MANIPULATING MATERIAL IN THE SPINE - Disclosed are surgical tools, tool sets and methods for percutaneously accessing and preparing treatment sites within the spine for subsequent treatment procedures. The treatment site may be an inter-vertebral motion segments in the lumbar and sacral regions of the spine. The tool set may comprise introducer tools and bone dilators for accessing and tapping into a targeted site, such as, for example, the anterior surface of the S1 vertebral body. The tool set may also comprise cutters and extractors for preparing the treatment site for subsequent treatment procedures. The tool set may additionally comprise a bone graft inserter, an exchange system, and/or a temporary distraction tool for further preparing the treatment site for subsequent treatment procedures.06-04-2009
20110130779ENDOSCOPIC SURGICAL BLADE AND USE THEREOF - An endoscopic surgical blade is disclosed. The blade is part of an endoscopic knife assembly which also has a knife tube and alignment ring. The endoscopic knife assembly is for use in endoscopic surgery by insertion of the assembly though a slotted cannula. The knife tube is hollow and allows the insertion of an endoscope for viewing of the surgical procedure. The blade has an upper and a lower cutting surface on the forward edge, which meet at an angle at a crotch.06-02-2011
20110213398Systems and Methods for Removal of Intravascular Leads - Systems and methods for extraction of implanted articles are disclosed. According to aspects illustrated herein, there is provided a system for extraction of an implanted article that includes an elongated member, guide member disposed at a distal section of the elongated member and having a pathway in substantially parallel relationship to the elongated member, through which pathway an implanted article can be accommodated, and a cutting mechanism, situated between the distal section of the elongated member and the guide member, for severing a fibrous adhesion about the implanted article to allow the implanted article to be extracted.09-01-2011
20110087258CANNULATED ARTHROSCOPIC KNIFE - A surgical system for penetrating and cutting tissue. The system comprises a tissue penetrating/cutting assembly comprising a cannulated dilation sleeve which receives a movable knife. The knife barrel is configured to be received in the sleeve. The sleeve is also configured to receive a guide wire disposed in parallel with the knife barrel. The sleeve has a handle provided with a spring or friction slide to advance or retract the sleeve relative to the knife barrel to expose or retract the knife blade at the distal end of the sleeve .04-14-2011
20100160939SYSTEMS, APPARATUSES, AND METHODS FOR CARDIOVASCULAR CUTTING DEVICES AND VALVES - A system comprising a tube with a first end dimension to be positioned against a cardiovascular organ. The system may comprise a cutting member adapted to cut an opening in the cardiovascular organ. The system may also comprise a first valve positioned inside the tube. The first valve may be adapted to open to allow the cutting member to pass through the first valve to the cardiovascular organ. The first valve may be adapted to close after the cardiovascular coring device is retracted through the first valve. A cardiovascular coring apparatus is also disclosed. The cardiovascular coring apparatus may comprise a cutting member, a tissue retraction member, and a valve positioned inside the cutting member. A method for inserting a cutting member through a valve is disclosed. A method for inserting a tissue retraction member through a valve in a cutting member is also disclosed.06-24-2010
20090216258MEDICAL HAND ATTACHMENT - A hand-held medical instrument, in particular a surgical cutting instrument, preferably for use in ophthalmology, with a housing that serves a grip, and with a tool holder that is provided in particular for a knife and is arranged so as to be displaceable in the housing via an actuation member, tool being able to be displaced from a storage position in the housing to a working position outside of the housing by actuation of the actuating member, is characterized in that the housing has openings in the housing wall, at least in the area of the tool located in the storage position.08-27-2009
20110087259Tissue Stop For Surgical Instrument - A surgical instrument including a handle assembly, an elongated portion, an end effector, and a stop member is disclosed. The end effector is disposed adjacent a distal portion of the elongated portion and includes a first jaw member and a second jaw member. At least one jaw member is movable with respect to the other jaw member between spaced and approximated positions. The first jaw member includes an upper tissue-contacting surface and a lower shelf portion. The shelf portion includes a groove disposed therein. The stop member is disposed adjacent a distal portion of the first jaw member and is pivotable with respect to the first jaw member between a first position, a significant portion of the stop member being positioned external to the first jaw member, and a second position where a lower portion of the stop member being positioned at least partially within the groove.04-14-2011
20110077674TISSUE CUTTER WITH DIFFERENTIAL HARDNESS - Disclosed is a tubular cutting element for axial reciprocal movement within an outer tubular sleeve. The cutting element has an elongate tubular body, having a proximal end, a distal end and a cutting tip. The tubular body is formed in a drawing operation and the cutting tip is formed in a milling operation. The tubular body may have a Rockwell C hardness of no more than about 40, and the cutting tip may have a Rockwell C hardness of at least about 50.03-31-2011
20110060357DEVICE FOR CUTTING OUT AND REMOVING CYLINDERS OF TISSUE FROM A TISSUE AND THE USE THEREOF - The invention relates to a device for cutting out and removing cylinders of tissue from a tissue, which is located inside a body or joint cavity and/or in or on a wall region thereof, comprising a cutting device (03-10-2011
20100305594PERCUTANEOUS VEIN HARVESTER WITH SHIELDED BLADE - A percutaneous harvesting device for the harvesting of tubular body members from a body is disclosed. The percutaneous harvesting device includes an endovascular guide for sufficiently straightening the tubular vessel to be removed and a perivascular cutting tool that is inserted over the endovascular guide. The cutting tool is advanced along the length of the tubular body member to be removed and it cuts body tissue (wherein the tubular body member is positioned inside the body tissue) as it is advanced. The body tissue is thus dissected from the body and can then be extracted percutaneously and rapidly from the body by pulling the endovascular guide, and the tubular body member and surrounding body tissue, from the body.12-02-2010
20100069941Systems and Methods For Sensing Hand Motion By Measuring Remote Displacement - Systems and methods for sensing hand motion by measuring remote displacement are disclosed. For example, one disclosed apparatus includes a first surface configured to engage a first distal member of a surgical tool and a second surface configured to engage a second distal member of the surgical tool, the second surface coupled to the first surface at a pivot point. The apparatus further includes a sensor configured to detect a relative movement of the first surface and the second surface about the pivot point and to generate a signal based at least in part on the relative movement.03-18-2010
20090248053MEDICAL INSTRUMENT WITH A FLEXIBLE INSERT - A medical instrument comprises a flexible shaft which has a bendable distal end and extending along said shaft, a flexible insert which at a distal end has a tool. The flexible insert has at its proximal end a connection piece connected releasably to a grip part of a handle of the instrument. The flexible insert is secured in an axially immovable manner to a distal end of the flexible shaft and is connected to the grip part at the proximal end in an articulated manner and held in place by a catch.10-01-2009
20080281342Surgical Tool For Removing A Block Of Tissue From An Organ - A surgical tool for removing a block of tissue or other material from an organ or other body has an elongated support element which carries a first blade assembly including a pair of arms pivotally mounted about a first transverse axis, and a first blade element pivotally mounted to the arms. A second blade element is also pivotally mounted to the support element. A mechanical actuation arrangement is configured to resiliently bias the first blade assembly and the second blade element from in-plane positions towards deflected positions for initiating a predefined cutting sequence for removal of the block of tissue.11-13-2008
20080312676 Device And Kit For Treatment Of Disorders In The Heart Rhythm Regulation System - A tissue cutting device is disclosed, which is structured and arranged to be inserted through the vascular system into a body vessel adjacent to the heart and/or into the heart, and to be subsequently subjected to a change of shape in order to penetrate into the heart tissue. The tissue cutting device may thus be used for treating disorders to the heart rhythm regulation system. A kit of devices provides a plurality of devices for creating a lesion pattern for treating such disorders.12-18-2008
20110054508Pneumatic Pressure Output Control by Drive Valve Duty Cycle Calibration - In various embodiments, a surgical console may include a pneumatic valve to drive a pneumatic tool coupled to the surgical console. The console may further include a controller operable to control and adjust the valve open/close cycle times according to a valve duty cycle. The valve may switch between ports (valve open time for a first port and valve close time for a second port) such that a total valve time may approximately equal the valve open time plus the valve close time. The valve duty cycle may indicate a percentage of the total valve time for the controller to signal the valve to open and may include an adjustment that corresponds to a signal timing of the open and/or closed valve positions that will result in open and closed operating pressures above a predetermined threshold.03-03-2011
20110054507DEVICES AND METHODS FOR ARCHED ROOF CUTTERS - Disclosed herein are tissue-removal devices and methods for treating spinal diseases using such devices. The tissue-removal devices may comprise a cable and/or extendable elements with a retracted and a deployed configuration. The cable and/or extendable elements may be distally supported and restrained by a support element such that the support element may be pushed transversely away when the extendable element is distally extended into its deployed configuration. An annular cutting element may be provided about the distal end of the extendable element or the support element. Various configurations of the extendable and support elements are described herein, as well as methods of using tissue-removal devices with extendable and support elements coupled by an annular cutting element for treating spinal diseases.03-03-2011
20110264128Percutaneous Methods for Apparatus for Creating Native Tissue Venous Valves - Percutaneous methods and apparatuses for forming a venous valve from autologous tissue. A catheter having a retractable dissecting system received therein is delivered to a target location where a new venous valve is to be created. A distal balloon or other radially-expandable component mounted on the catheter is expanded against the vein wall, and the dissecting system is proximally retracted to deploy one or more dissecting components that dissect a subintimal layer of the vein wall. Radial expansion of the dissecting component(s) within the vein wall creates one or more leaflets and corresponding pocket/sinuses in the vein that collectively act as a venous valve, and/or the radially-expandable component of the catheter is subsequently collapsed such that the dissecting component(s) each pull a flap of the dissected tissue towards the vein lumen to create one or more leaflet(s) and corresponding pocket/sinuses in the vein.10-27-2011
20110125177MOTORIZED SURGICAL INSTRUMENT - A surgical cutting and fastening instrument that is motorized. The instrument comprises in one embodiment a charge accumulator device, separate from a battery, that provides additional power to the motor under certain conditions. In addition, the motor may comprise multiple windings.05-26-2011
20110125176MOTORIZED SURGICAL CUTTING AND FASTENING INSTRUMENT - A surgical cutting and fastening instrument. The instrument comprises an end effector, a shaft connected to the end effector, and a handle connected to the shaft. The handle comprises an electric, DC motor connected to a drive train in the shaft for powering the drive train. The handle also comprises a power pack that comprises at least one charge-accumulating device connected to the DC motor for powering the DC motor.05-26-2011
20100305595Surgical instrument - A surgical instrument is suggested with a proximal and a distal end section, comprising an elongated, hollow outer shaft which extends from the proximal to the distal end section, a hollow cylindrical drive element rotatably mounted in the outer shaft as well as a cutting, abrading or milling tool which is arranged at the distal end section of the instrument and coupled to the drive element, wherein the drive element has a flexible section which is arranged between the proximal and distal end sections and comprises a plurality of ring segments which each have, in an axial direction, a first and a second end region, wherein the first end region comprises two or more projections protruding in an axial direction and the second end region comprises two or more recesses accommodating the projections and the ring segments engage in one another in a joint-like manner via the projections and recesses, characterized in that the ring segments are connected to one another in a form locking manner in an axial and/or radial direction via the projections and recesses.12-02-2010
20100179578SPINAL DISC PREPARATION TOOL - A spinal disc preparation tool is provided that includes an elongate shaft having an inner lumen extending therethrough along a longitudinal axis between proximal and distal ends thereof. A lower jaw is located on a distal end of the elongate shaft for receiving tissue and delivering tissue to the inner lumen, and an upper jaw is pivotally movable relative to the lower jaw. The tool can include various features to facilitate removal and/or collection of tissue.07-15-2010
20110184447SURGICAL CUTTING TOOL AND METHOD - Embodiments of the invention include surgical cutting tools with expandable blade portions configured to be inserted through a relatively small opening and expanded in place to manipulate tissue. Some embodiments include expandable blades that may be used to one or more of cut, detach, and remove tissue of or associated with skeletal structures such as one or more vertebrae or portions of the spine or vertebrae. Some embodiments may include use in related methods.07-28-2011
20100191266SYSTEMS AND METHODS FOR SURGICAL REMOVAL OF BRAIN TUMORS - A method for treating a brain tumor includes providing a surgical instrument having an inner member and an outer member. The outer member has a distal region forming a cutting window. The inner member is rotatably received within the outer member, and has a cutting tip that is exposed at the window. The cutting tip and the distal region of the outer member combine to define a cutting implement. An opening is created through the patient's skull to provide access to a brain tumor target site. The cutting implement is delivered through the opening to the target site. The cutting tip is placed into contact with the tumor and operated to cut the tumor. The target site is selectively aspirated to remove cut tumor tissue.07-29-2010
20110190801TISSUE REMOVAL DEVICE - A tissue removal device is disclosed. In one arrangement, the tissue removal device comprises a cutting member operatively connected to an actuator assembly and a fixed member. The cutting member is configured to slide with respect to the fixed member in a reciprocating manner. A vacuum source is operatively connected to the tissue removal device such that vacuum is supplied to the cutting member to deliver vacuum through the cutting member.08-04-2011
20100160940Surgical Instrument - A surgical instrument has a shaft, an end effector comprising at least one movably mounted tool element and defining a longitudinal axis, and a force transmitting member mounted in the shaft for movement in the distal and proximal directions for transmitting an actuating force introduced at a proximal end of the instrument onto the end effector in order to move the at least one tool element from a first tool element position to a second tool element position and/or vice versa. The at least one tool element is pivotably mounted on a bearing shaft held on the shaft. The at least one tool element is connected by at least one articulation member, at least a section of which is flexible, to the force transmitting member in order to transmit the actuating force from the force transmitting member onto the at least one tool element.06-24-2010
20110264129SURGICAL INSTRUMENT - A morcellator (10-27-2011
20100016877Controllable Device, A Kit And A Method For Treatment Of Disorders In The Heart Rhythm Regulation System - A tissue cutting device is disclosed, which is structured and arranged to be inserted through the vascular system into a body vessel adjacent to the heart and/or into the heart, and to be subsequently subjected to a change of shape in order to penetrate into the heart tissue. The device comprises at least one connection element that is arranged such that a connection formed from said connection element between a first and second part of said tissue cutting device is configured to break when said connection element is subjected to a specific external influence. The tissue cutting device may thus be used for controllably treating disorders to the heart rhythm regulation system. A kit of devices provides a plurality of devices for creating a lesion pattern for treating such disorders.01-21-2010
20090275965SURGICAL INSTRUMENT - A surgical device comprising a head with a cutting edge and a shaft is described for use in treating anal fistulas. The device facilitates the removal of tissue from the walls of the fistula allowing the introduction of collagen that aids the healing of the fistula. In this way a fistula may be closed without serious consequences to the continence of the patient.11-05-2009
20110144678Endoscopic Scissors Instrument - An endoscopic scissor instrument includes an elongate hollow member and first and second scissor blades each having longitudinally angled distal features. At least one scissor blade is rotatably mounted in a clevis adjacent the distal end of the hollow member. The clevis includes a pivot mechanism and spring bias means, disposed adjacent the pivot mechanism on at least one external side of the first and second scissor blades, for biasing transverse movement of the scissor blades toward one another. The spring bias means of the clevis and the angling of the distal features of the scissor blades serves to generate spring forces acting on the respective cutting edges such that there is an automatic preloading force imparted between the cutting edges of the scissors' blades.06-16-2011
20110306996SYSTEMS AND METHODS FOR TREATMENT OF COMPRESSED NERVES - Disclosed herein is a system for releasing a ligament. In one embodiment, the system includes a proximal handle, a tubular body, and a flexible body. The tubular body includes a proximal end and a distal end. The handle is coupled to the proximal end. The flexible body extends through the tubular body and includes a tissue cutting portion. The flexible body or tubular body is longitudinally displaceable to move the tissue cutting portion between a non-deployed state and a deployed state.12-15-2011
20100069942SURGICAL INSTRUMENT WITH APPARATUS FOR MEASURING ELAPSED TIME BETWEEN ACTIONS - A surgical instrument is disclosed. According to various embodiments, the instrument includes a handle assembly and a drive system that is at least partially supported by the handle assembly. A surgical implement may be operably coupled to the handle assembly for receiving at least two independent drive motions from the drive system to cause the surgical implement to perform at least two surgical activities. The instrument may further include a timing indicator on at east one of the handle assembly and the surgical implement to provide an indication of an amount of time that has elapsed from an application of one of the control motions while maintaining an ability to selectively apply a second control motion after the first control motion has been applied.03-18-2010
20120041461Dual-mode illumination for surgical instrument - An illuminated surgical instrument is disclosed. One embodiment of the present invention comprises an illuminated vitrectomy probe. The vitrectomy probe has a cutting port disposed at a distal end of a cannula. An array of optical fibers terminates near the cutting port. The array of optical fibers is located adjacent to the cannula and encircling the cannula. The array of optical fibers can comprise two sets of fibers, one for providing illumination in a direction along a longitudinal axis of the vitrectomy probe and another for providing illumination in a direction at an angle to the longitudinal direction of the vitrectomy probe. The light source providing light to each set of fibers can be independently controlled so as to provide illumination cooperatively or singly.02-16-2012
20100262174Microsurgery for Treatment of Glaucoma - Surgical procedures and devices are used for treating medical conditions in the eye such as glaucoma. In particular, access to Schlemm's canal in the eye is obtained by cutting through a portion of the sclera to expose the canal. This incision may be made using a fixture that guides a microknife to make a precise cut. A catheter containing a knife may then be placed within Schlemm's canal, and the knife can be actuated to a position outside the catheter to allow an incision to be made. This incision may be made through the wall of the canal and into the surrounding trabecular meshwork, thereby improving the drainage of the aqueous humor from the eye and lowering the intraocular pressure.10-14-2010
20120209304RE-SHAPEABLE MEDICAL DEVICE - A medical device enables a user to bend it into a shape to suit a specific patient need or to orient efficiently the medical device for use. The medical device includes an elongate member, a mechanism, and an actuator. The mechanism is disposed at the distal portion of the elongate member. The actuator is at least partially disposed within the elongate member and coupled to the mechanism for actuating the mechanism relative to the elongate member. The elongate member is capable of being bent into a shape by the user and of retaining the shape during use. The shape may include multiple bends, in multiple directions, as needed for an application. Thereafter, the elongate member is capable of being bent into a second shape by the user and of maintaining the second shape during use.08-16-2012
20090099583Pleurabrade device - An abrading device for use in irritating and blotting a surgical area, preferably the area between the chest wall and lung of a patient, to allow the user to more easily insert and remove the surgical device reducing contact with surrounding tissue and wound edges. The device is primarily comprised of a cannula, a plurality of radial springs, an abrasive tip, an actuator and an adjuster. The actuator is configured to selectively move the abrasive tip and plurality of radial springs into and out of the cannula. The adjuster allows the user to selectively expand or collapse the abrasive tip.04-16-2009
20120004680MICRO-RESECTING AND EVOKED POTENTIAL MONITORING SYSTEM AND METHOD - Surgical micro-resecting and evoked potential monitoring system and method. The system includes a micro-resecting instrument, handpiece, and evoked potential monitor. The instrument includes an outer tube forming a cutting window at which a cutting tip of an inner member is located. A hub assembly rotatably maintains the inner and outer members. An electrically non-conductive material covers a region of the outer tube, and wiring is connected to an exposed surface of the outer tube. The instrument defines a probe surface proximate the cutting window as part of an electrical pathway with the wiring. The hub assembly is powered by the handpiece, and the wiring is connected to the evoked potential monitor. Evoked potential monitoring is performed at the probe surface via stimulation energy delivered along the electrical pathway, and tissue/bone resection occurs with rotation of the cutting tip.01-05-2012
20120209305COMBINATIONAL SCISSOR-GRASPER FOR USE IN LAPAROSCOPY - Disclosed is a four-jawed combinational scissor-grasper surgical tool for use in laparoscopy. Cutting and grasping functionalities are respectively enabled via movement of a pair of such specially contoured jaw members sliding against or splaying apart from the other pair. Also disclosed are means for achieving selectable interlocking of jaw members and mechanical linkage for their actuation by human user.08-16-2012
20120016398CARPAL TUNNEL RELEASE TOOL - A carpal tunnel release tool and methods for using the same are disclosed. Embodiments of the carpal tunnel release tool include a guide with an angled track and a knife that fits into and follows the angled track. In one embodiment, the knife is retracted into the guide as it is advanced along the track to cut the ligament. In an alternate embodiment the blade is extended outwardly from the surface of the guide as the blade is advanced along the track. Other embodiments include a projection at the terminal end of the track that maintains the position of the ligament over the guide, serves as a type of cutting block to ensure complete bisecting of the ligament, and can aid the surgeon in placement of the guide beneath the ligament. Further embodiments include an inserter that inhibits tissue entering the track as the guide is advanced beneath the ligament.01-19-2012
20120016400SYSTEMS AND METHODS FOR CABLE-BASED TISSUE REMOVAL - Systems and methods for treating disc herniation include surgical and endoscopic access and removal of disc tissue. The tissue removal devices that may be used include flexible elongate members, such as a cable, that may be inserted into a vertebral disc and rotated to pulverize the disc material and facilitate its removal.01-19-2012
20120016399Surgical Apparatus - A single use morsellator utilizes a disposable housing, cutting tube, battery and motor in combination with an attached and adjustable trocar to enable the surgeon to selectively utilize the cutting edge of the tube. The battery and control circuit are completely contained within the integral morsellator such that no separate components are needed.01-19-2012
20110087257MINIMALLY INVASIVE DISCECTOMY - Systems and methods for minimally invasive discectomy procedures are described herein. The systems include a bendable flexible cannula may have a straight configuration suitable for insertion and withdrawal into spinal tissue, and a curved configuration suitable for accessing certain areas of a vertebral disc that may be difficult to reach in the straight configuration. A cannula is straightened by inserting a straight stylet therethrough. The straight stylet may have a deflectable region that facilitates its insertion into the cannula. Removal of a straight stylet from a cannula may allow the cannula to assume its curved configuration. The systems may be used with tissue removal devices, and certain variations of tissue removal devices may comprise a collector for aspiration, as well as a travel limiter to restrict inadvertent motions of the tissue removal devices within a vertebral structure.04-14-2011
20120109175Method of Performing a Suprapubic Transurethral Cystostomy - A suprapubic transurethral cystotomy apparatus and method of forming a surgical opening therewith. The apparatus includes an elongate tubular body including a proximal portion and a distal portion inclined relative to one another. The distal portion extends along an axis to an end configured for receipt through a urethra. An elongate arm has a first end operably attached to the proximal portion of the tubular body and a second end providing an indicator establishing an axis aligned coaxially with the axis of the distal portion. A surgical opening is formed with a cutting member being extended along the axis of the indicator.05-03-2012
20120071908TUBULAR CUTTER DEVICE AND METHODS FOR CUTTING AND REMOVING STRIPS OF TISSUE FROM THE BODY OF A PATIENT - Methods and devices for cutting strips of tissue from masses of tissue inside or outside of the bodies of human or animal subjects. The device generally comprises a) an elongate cutting tube that has a distal end and a lumen that opens through an opening in the distal end and b) first and second cutting edges formed on generally opposite edges of the distal end of the cutting tube and separated by a distance D. The device is advanced through tissue to cut a strip of tissue of approximate width W. Width W is approximately equal to distance D.03-22-2012
20120158028SURGICAL BUR WITH ANTI-CHATTER FLUTE GEOMETRY - A surgical bur including a shaft with a bur head. A number of flutes are formed on the bur head. Each flute has a cutting edge. Chamfer surfaces form the front, distally directed faces of some of the burs. The flutes without chamfer surfaces having cutting edges emerge from the bur head at locations relatively close to the distal end tip of the head. The flutes over which the chamfer surfaces extend have cutting edges that start, extend proximally rearward, from locations that are, spaced proximal from the distal end tip.06-21-2012
20110106124METHOD AND APPARATUS FOR ARTHROSCOPIC ROTATOR CUFF REPAIR USING TRANSOSSEOUS TUNNELS - There is provided a device for making an arthroscopic rotator cuff repair having a hooked bone-penetrating portion having a sharp tip, a shaft for transmitting force, and a gripping portion. The device may function as a suture passer, being configured to hold or pass one or more suture, and may be cannulated or have an eyelet for this purpose. There is also provided a suture passer of substantially the same shape as the device, which is configured to hold or pass one or more suture, and which may define a channel or have an eyelet for this purpose. Also disclosed herein is a kit comprising the device and suture passer. A method of making a rotator cuff is also disclosed, wherein the greater tuberosity of the humerus is perforated with the device to form a curved bone channel, and a suture is then passed through the bone channel.05-05-2011
20100249817POSITIONING SYSTEM FOR TISSUE REMOVAL DEVICE - A tissue cutting device especially suited for neurosurgical applications is disclosed and described. The device includes a handpiece and an outer cannula in which a reciprocating inner cannula is disposed. At least one position transducer for tracking a location in space of the tissue cutting device is rigidly associated with the handpiece. The position transducer is operable for sending a signal indicative of a location of a distal end of the outer cannula. The tissue cutting device may also include an angular position sensor for determining an angular position of the outer cannula relative to the position transducer.09-30-2010
20120316589Balloon catheter with raised elements and visual marker - A balloon catheter has an elongate catheter shaft and an inflatable balloon. A marking indicia extends along the axial length or a portion of the axial length of the shaft. A raised element is formed by or disposed on the inflatable balloon and is aligned with the marking indicia. Methods of treating a portion of a bodily passage using a balloon catheter having a raised element on the inflatable balloon are also described.12-13-2012
20100204722APPARATUS FOR CUTTING OUT AND REMOVING TISSUE CYLINDERS FROM A TISSUE, AND USE THEREOF - The invention relates to an apparatus for cutting out and removing tissue cylinders from a tissue located within a cavity of the body or a joint and/or in or on a wall section thereof. The apparatus includes at least two, especially two cutting devices, each of which has a hollow cylindrical base, a distal opening at a distal end of the base, and a cutting element that surrounds the distal opening. The at least two cutting devices are disposed inside each other and can be rotated relative to one another. The apparatus further includes at least one driving device for rotating the respective base of the at least two cutting devices about the longitudinal axis of the base. The invention also relates to the use of the apparatus.08-12-2010
20120083816BLADE UNIT FOR SURGICAL SCALPEL - A scalpel is disclosed, having a conventional handle and a blade unit for releasable attachment to the handle. The blade unit includes a body, a slot within said body to releasably engage the finger protruding from the handle, a scalpel blade attached to said body, and a blade cover slideably engaged to said body and configured for movement between a forward, protective position fully covering said blade and a retracted position to expose said blade for use. The cover has open front and rear ends to permit said blade and said body respectively to protrude through opposing ends of said cover when said cover is moved between said positions.04-05-2012
20120083815Medical instrument - A medical instrument for cutting biological tissue, a cutting module having a blade, wherein the cutting module is inserted into a hand-held module, the cutting module is detachably fixed in the hand-held module.04-05-2012
20120083814LAPAROSCOPIC SCISSORS - A laparoscopic scissor instrument can include a scissor assembly pivotally coupled to an elongate shaft. The scissor assembly can be formed of scissor blades having apertures. A rivet or pivot pin can couple the scissor blades to the elongate shaft. The scissor blades can also include actuation posts thereon. An actuation mechanism slidable within the elongate shaft can include a slot to engage the actuation posts and open or close the blades of the scissor assembly. The elongate shaft can include a longitudinal guide to stabilize the motion of the actuation mechanism. The actuation mechanism can have a forked end including projections to flexibly maintain the spacing of the forked end.04-05-2012
20120083813Sling Blade Transection of the Transverse Carpal Ligament - A sling blade apparatus allows percutaneous transaction of fascia or ligaments and in particular for use in transaction of the human transverse carpal ligament. A flexible sling guide is deployed percutaneously beneath the transverse carpal ligament and when drawn taut interfaces intimately with the transverse carpal ligament. The sling in turn serves as a guide along which cutting instruments can be passed to transect the ligament while simultaneously serving as a protective shield for the adjacent median nerve.04-05-2012
20120221035SURGICAL CUTTING ACCESSORY WITH FLEXIBLE TUBE - A surgical cutting accessory for attachment to a powered surgical handpiece having a cutting element for cooperation with a drive member of the handpiece, a distal end defining a cutting element, and an elongate tube disposed between the proximal and distal ends. The tube of the cutting element has a flexible portion defined by a continuous cut disposed in the tube and extending in a helical manner generally axially, and a tubular liner is disposed within the tube axially adjacent the flexible portion. The accessory additionally having an outer tube housing in which the cutting element is disposed, the outer tube having a bent portion.08-30-2012
20120221033SURGICAL PROBE WITH INCREASED FLUID FLOW - A surgical probe, e.g. a vitrectomy probe, and methods of making the same are disclosed. An exemplary surgical probe may include a tubular body and a cutting tool that is received within the body. The tubular body may define a cutting aperture that is adjacent a first end of the body and a fluid passage that extends through the body from the cutting aperture to a second end of the body. The cutting tool may be received within the body and disposed within the fluid passage. The cutting tool is generally configured to allow fluid flow through the cutting tool. The cutting tool may include a body portion and a blade portion that is configured to cut material entering the cutting aperture. The body portion may extend only partially about an inner circumference of the tubular body.08-30-2012
20120221034APPARATUS AND METHODS FOR REMOVING TISSUE - Apparatus and methods for removing tissue a body cavity. Apparatus and methods comprise an inner sleeve, a middle sleeve, an outer sleeve, and an irrigation conduit.08-30-2012
20100049230GREATER PALATINE CANAL STYLET - Apparatus for treating a subject is provided, the apparatus comprising (a) a stimulation device (02-25-2010
20100298854Endoscopic Instrument with Control Member Having Decreasing Torsional and Flexural Stiffness Along Its Length - An endoscopic instrument includes a tubular member having a proximal end and a distal end, a clevis rotatably mounted at the distal end of the tubular member, and an end effector assembly having first and second end effectors mounted on the clevis. A control member extends through the tubular and is coupled to the end effector assembly for moving at least one end effector relative to the other. The control member has decreasing torsional and flexural stiffness at different portions along its length from its proximal end to its distal end. The control member is a composite structure.11-25-2010
20100298853Endoscopic Instrument Having Rotatably Mounted End Effector Assembly - An endoscopic instrument includes a tubular member having a proximal end and a distal end, a clevis at the distal end of the tubular member, and an end effector assembly mounted on the clevis. The clevis is rotatably coupled to the distal end of the tubular member using a bearing system. A control member extends through and is movable relative to the tubular member. The distal end of the control member is coupled to the end effector. The control member which actuates the end effectors is a composite structure that effectively transfers torque through a highly flexed instrument to rotate the clevis on the bearing.11-25-2010
20120179184HEART VALVE REMODELING - A device for remodeling atrioventricular valve leaflets including one or more stretching members and one or more leaflet engaging elements, wherein each stretching member includes at least one leaflet engaging element, the leaflet engaging elements are configured to penetrate a valve leaflet, and the stretching members are configured to be positioned externally to a plane of the leaflet when the leaflet engaging elements have penetrated a valve leaflet. A method for remodeling atrioventricular valve leaflets including inserting one or more leaflet engaging elements into an atrioventricular valve leaflet, and using stretching members positioned externally to a plane of the leaflet to apply a stretching force on the atrioventricular valve leaflet. Related apparatus and methods are also described.07-12-2012
20120179183DISC NUCLEUS REMOVAL DEVICES AND METHODS - Disclosed herein are devices and methods for removing tissue. In one aspect, a device for removing tissue includes a hollow elongate member having an outer wall and a lumen, a selectively deployable tissue-cutting element extending from the hollow elongate member, and an actuation member extending through the lumen and coupled to the hollow elongate member at a location that is distal to the tissue-cutting element. Movement of the actuation member can cause the tissue-cutting element to move from the insertion configuration where the tissue-cutting element is not deployed to a tissue-cutting configuration where the tissue-cutting element is deployed such that it is radially extended relative to the insertion configuration.07-12-2012
20100010525Miniature Shredding Tool for Use in Medical Applications and Methods for Making - The present invention relates generally to the field of micro-scale or millimeter scale devices and to the use of multi-layer multi-material electrochemical fabrication methods for producing such devices with particular embodiments relate to shredding devices and more particularly to shredding devices for use in medical applications. In some embodiments, tissue removal devices are used in procedures to removal spinal tissue and in other embodiments, similar devices are used to remove thrombus from blood vessel.01-14-2010
20120316590INSTRUMENT AND SYSTEM FOR SURGICAL CUTTING AND EVOKED POTENTIAL MONITORING - A surgical cutting instrument for use with a drive motor, and related system and method, is described. The surgical cutting instrument includes an elongated drive member, a cutting tip secured to the drive member, a non-conductive coupling body adapted for connection to a motor assembly, a housing maintaining the coupling body, a fluid coupling assembly and an electrical connector for connection to a stimulating energy source. The electrical connector is in electrical communication with the cutting tip via an electrical pathway.12-13-2012
20120221032LAPAROSCOPIC SCALPEL AND METHOD FOR USE - A laparoscopic scalpel includes a shaft and a recess disposed in a surface of the shaft proximal to a distal end of the shaft. A blade is attached to the shaft. The blade includes a cutting edge having a portion exposed by the recess and oriented outwardly from the recess. A proximal end of the portion of the cutting edge exposed by the recess is disposed further from the surface than is a distal end of the portion of the cutting edge exposed by the recess.08-30-2012
20090018568Medical Instrument - A medical instrument has a shaft. The shaft has an outer shaft and an inner shaft. The outer shaft encloses the inner shaft. The medical instrument further has an actuator for rotating the inner shaft about a longitudinal axis relative to the outer shaft, arranged at a proximal end region of the shaft. The medical instrument has at least two tappet elements for transferring a rotary movement of the actuator to the inner shaft, which are engaged interchangeably with the inner shaft for transferring the rotary movement of the actuator to the inner shaft. The tappet elements reach through peripherally limited openings in a proximal end region of the outer shaft, which openings are offset with respect to one another in the longitudinal direction.01-15-2009
20080300613Surgical instrument having a multiple rate directional switching mechanism - A surgical instrument including a drive mechanism configured to advance a staple driver and/or cutting member at a first rate and retract the staple driver and/or cutting member at a different rate. In at least one embodiment, the rate at which the driver and cutting member is advanced and/or retracted is the distance that the driver and/or cutting member is translated per actuation of a trigger, for example. In various embodiments, the cutting member can be retracted at a faster rate as compared to the rate in which it is advanced. In such embodiments, the surgical instrument can, owing to the slower advancing rate, provide a greater torque or advancing force to the cutting member while, owing to the faster retracting rate, reduce the time required for the surgeon to retract the cutting member.12-04-2008
20120265230MOTOR-DRIVEN SURGICAL CUTTING INSTRUMENT - A motor-driven surgical cutting and fastening instrument that comprises an end effector, a shaft connected to the end effector, and handle connected to the shaft. The end effector may comprise a cutting instrument that, when actuated, longitudinally traverses the end effector to cut tissue clamped in the end effector. The handle may comprise an electric motor for actuating the cutting instrument and a motor control circuit for controlling the motor. The motor control circuit may comprise a power source connected to the motor for electrically powering the motor and a current control circuit, connected to the power source, for varying the current supplied to the motor from the power source. The current control circuit may vary the current supplied to the motor, and consequently, the output torque supplied by the motor, such that the motor has at least (i) a first, low power operational mode for a first portion of a cutting stroke cycle of the cutting instrument, and (ii) a second, high power operational mode for a second portion the cutting stroke cycle of the cutting instrument.10-18-2012
20120265229LANCET MICRO-CATHETER - A micro-catheter (10-18-2012
20120265228WOUND DEBRIDEMENT INSTRUMENT - A wound debridement instrument for treatment of chronic wounds has an elongate handle with a distal end, a proximal end, and a middle section. An elongate tubular blade body extends distally from the handle distal end and terminates at a distal cutting edge. The tubular body defines a cavity and has a longitudinal axis. The distal cutting edge follows the arc of the tubular body and is angled relative to the longitudinal axis. In some embodiments the tubular body is an incomplete tube, having a longitudinally-extending gap formed therein. Some embodiments may also have a scraping element extending proximally from the handle proximal end.10-18-2012
20110046652Instruments and Methods for Minimally Invasive Carpal Tunnel Release - Instruments for use in minimally invasive carpal tunnel release include a cannula and a cutting member movable longitudinally within the cannula to advance a cutting blade of the cutting member along a longitudinal slot in the cannula to sever a transverse carpal ligament disposed over the slot. A dilating member is provided for creating a subligamentous space to accommodate the cannula and/or for removing adhered synovium from a lower surface of the ligament. A method for minimally invasive carpal tunnel release involves establishing a proximal entry into the carpal tunnel from an incision in the volar aspect of the forearm, introducing the cannula in the carpal tunnel via the incision, and severing the transverse carpal ligament from proximal to distal with the cutting blade of the cuffing member under direct endoscopic visualization.02-24-2011
20100234866BATTERY OPERATED NUCLEUS DISRUPTOR DEVICE FOR INTERVERTEBRAL DISC - Apparatuses and methods for accessing and disrupting a tissue are disclosed herein. In one embodiment, an apparatus includes a first elongate member having a tissue interaction portion disposed at a distal end of the first elongate member. The tissue interaction portion is configured to be inserted within a biological body. A second elongate member is movably disposed within a lumen defined by the first elongate member. The second elongate member has a threaded exterior surface. A drive motor is coupled to the first elongate member and coupled to the second elongate member. The drive motor is configured to rotate the first elongate member in a first direction and configured to rotate the second elongate member in a second direction opposite the first direction. The tissue interaction portion is configured to disrupt tissue when disposed into the biological body and when the first elongate member is rotated.09-16-2010
20110264127Percutaneous Methods and Apparatus for Creating Native Tissue Venous Valves - Percutaneous methods and apparatus for forming a venous valve from autologous tissue by creating at least one subintimal longitudinal dissection that forms at least one flap of intimal tissue are disclosed. In one method, a balloon catheter having a dissecting blade mounted thereon is delivered to a target site where a new venous valve is to be created. The balloon is inflated to deploy the blade against the vein wall, and the catheter is longitudinally translated such that the blade dissects a subintimal layer of the vein wall. The balloon is subsequently deflated such that the blade pulls a flap of the dissected tissue towards the vein lumen, thereby creating a leaflet and corresponding pocket/sinus in the vein that collectively act as a monocuspid venous valve. Methods of forming new bicuspid and tricuspid venous valves utilizing two or three dissecting blades mounted on the balloon are also disclosed.10-27-2011
20110276073Cystotomy Catheter Capture Device - A catheter capture device comprising a urethral sound and a sleeve that utilizes balloon inflation to capture the catheter. A catheter capture device comprising a urethral sound and a clamshell device. The clamshell device comprises two halves, one of which comprises two pins. One pin passes through the lateral holes in the tip of the catheter, and the other pin fits into a notch in the bottom half of the clamshell device. A catheter capture device comprising a urethral sound, a sleeve and a pin that passes through the lateral holes in the tip of the catheter. A catheter capture device comprising a urethral sound, a wire and a nodule, wherein the nodule captures the catheter by lodging in the tip of the catheter. The nodule could be a ball, hook, crimped wire or similar object. A method of capturing a catheter in an obese or non-obese patient.11-10-2011
20120330339TISSUE CUTTING DEVICE, ASSEMBLY AND METHOD - A tissue cutting device, assembly and method of using same, including a generally cylindrical tube having a distal end and a proximal end and defining an open passage extending from the proximal end to the distal end. The distal end defines a cutting edge, and the tube has a substantially smooth exterior along a working length selected for insertion through the epidermis of a patient to access tissue to be cut. The assembly further includes a grasping tool having a distal portion defining a grasping element capable of grasping tissue and of being inserted through the passage of the tube. The tube and the grasping tool are separable and independent from each other, and the tube is advanceable relative to the tool to cut tissue held by the grasping element.12-27-2012
20120101513METHOD AND APPARATUS FOR REMOVING MATERIAL FROM AN INTERVERTEBRAL DISC SPACE AND PREPARING END PLATES - Instrument and method for removing material from an intervertebral disc. The instrument includes outer and inner tubular members. The outer tubular member defines a passage and a cutting window. The inner tubular member is coaxially disposed within the passage, and defines a central lumen and a cutting tip. The cutting tip forms an open mouth having a plurality of teeth. Upon assembly, the cutting tip is exposed within the cutting window combining to define a shaving head. A manual decorticating implement is coupled to the outer tubular member and defining a scraping surface. A powered handpiece is coupled to the inner tubular member, and the shaving head is inserted into an intervertebral disc and positioned such that the cutting tip contacts targeted material (e.g., nucleus, annulus and/or end plate). The handpiece is activated to rotate the cutting tip relative to the cutting window. Contacted material is sheared between an edge of the cutting window and the teeth of the cutting tip. The manual decorticating implement is used to remove intervertebral disc material from an end plate.04-26-2012
20130012974LAPAROSCOPIC SCISSORS - A laparoscopic scissor instrument can include a scissor assembly pivotally coupled to an elongate shaft. The scissor assembly can be formed of scissor blades having pivot posts thereon. The pivot posts can engage apertures on the elongate shaft, thus eliminating the need for a through-pinned pivot connection of the scissor blades. The scissor blades can also include actuation posts thereon. An actuation mechanism can include a slot to engage the actuation posts and open or close the blades of the scissor assembly. The scissor assemblies described herein can have a relatively low operational height such that they do not extend beyond a diameter of the elongate shaft during opening and closing of the scissor assembly.01-10-2013
20130012971SURGICAL TOOL - A surgical tool for use through laproscopic ports having improved haptic and tactile feedback.01-10-2013
20130012972METHOD OF ENDOSCOPICALLY REMOVING TISSUE - A method of endoscopically removing tissue including providing a surgical cutting instrument including a first elongated member having a cutting tip, a second tubular member forming a cutting window, and a handpiece. The first elongated member is co-axially disposed within the second tubular member such that the cutting tip is exposed at the cutting window and combines to define a cutting implement. The first and second members are coupled to the handpiece. The method includes grasping the handpiece, deploying the instrument such that the cutting implement is adjacent a target site with the cutting window positioned at a first spatial orientation relative to the handpiece, rotating the cutting window relative to the handpiece such that the cutting window is positioned at a second spatial orientation, and moving the first elongated member relative to the second tubular member such that the cutting tip removes tissue from the target site.01-10-2013
20120150209RIBBED SURGICAL BUR - The bur includes a shaft to which a bur head is attached. The bur head includes a plurality of flutes. Each flute at least has a rake surface, a cam surface and a cutting edge. The rake surface extends radially outwardly from the longitudinal axis of the head. The rake surfaces define the flute cutting edge (06-14-2012
20130018401Surgical tool system with quick release coupling assembly - A surgical tool system with a handpiece and a cutting accessory that has inner and outer hubs. The handpiece has a spring biased lock ring that abuts a complementary stop member integral with the accessory outer hub to hold the accessory to the handpiece. An RFID chip is disposed against an inner wall of the accessory outer hub. An elastomeric seal pressed against the inner wall of the accessory outer hub provides environmental protection for the RFID chip. The seal has a rib that extends around the outer perimeter of the proximal end of the outer hub so as to form a seal between the accessory and an adjacent inner wall of the handpiece. Stop tabs extend inwardly from the seal to prevent the drive hub disposed inside the outer hub from falling out.01-17-2013
20130018402TISSUE SEVERING DEVICES AND METHODS - Tissue severing devices and methods as provided in embodiments herein are operable to be inserted through small surgical openings and advanced to tissue to be severed. The tissue severing device comprises a tube member, an inner member, and a cutting element including a cutting element proximal end and a cutting element distal end, the cutting element distal end extending from the inner member distal end, the tube member distal end being operable to move distally over the inner member distal end with the tube lumen operable to receive the cutting element distal end therein, the tube member distal end being operable to move in a proximal direction to expose the cutting element distal end.01-17-2013
20130023915Articulating Surgical Apparatus - An endoscopic instrument includes a housing having shaft. The shaft includes an articulating section disposed thereon. The articulating section includes a plurality of annular stationary and rotatable links arranged in an alternating configuration therealong. Each link of the plurality of rotatable links seated within a corresponding stationary link of the plurality of stationary links to collectively define a central annulus therethrough. An end effector assembly operatively connected to a distal end of the shaft includes a pair of first and second jaw members. An articulation catheter operably disposed through the central annulus is configured to rotate the rotatable links with respect to the stationary links to articulate the shaft about the articulating section.01-24-2013
20130172918TISSUE RESECTION BANDER AND RELATED METHODS OF USE - A tissue resection cap assembly configured to be secured to the distal end of an elongated medical device, such as an endoscope, and a method for resecting tissue. The cap assembly may include a cap structure comprising a working channel and a resection device channel, wherein the resection device channel extends inside the cap structure to a resection device track positioned substantially around the working channel adjacent the distal end of the cap structure. The resection device channel is adapted to direct a resection device from the working channel of the endoscope to the resection device track. The cap assembly further includes one or more ligation bands on the outside surface of the cap structure and a trigger line for deploying the ligation bands from the distal end of the cap structure. The method includes deploying a ligation band around tissue and using a resecting loop to cut the tissue.07-04-2013
20130172919RADIALLY ADJUSTABLE TISSUE REMOVAL DEVICE - A tissue removal kit or assembly comprises a cannula and a tissue removal probe axially slidable within the cannula. The tissue removal probe comprises an elongated member a distal end configured to curve when distally deployed from the cannula. The tissue removal probe further comprises a drive shaft rotatably disposed within the member, and a rotatable tissue removal element (e.g., an abrasive burr) disposed on the drive shaft adjacent the member distal end. The curved member distal end may associate the tissue removal element, which has its own axis of rotation, with a radius of revolution about the longitudinal axis of the member. The member is laterally flexible and resilient, so that the radius of revolution can be adjusted. In this manner, the tissue removal element can remove tissue around an adjustable arc.07-04-2013
20080234714Cutting Tool Having A Magnetically Controlled Pre-Load Force - The present disclosure relates to a cutting tool that includes an outer tubular member having a first magnet and an inner tubular member having a second magnet wherein the inner tubular member is slidably disposed within the outer tubular member. A force, such as an attractive force, is created between the first magnet and the second magnet. The attractive force creates a preload force between the inner tubular member and the outer tubular member. A method of creating a force between an inner and outer tubular member is also disclosed.09-25-2008
20080234713SHAVER BLADE WITH DEPTH MARKINGS - A surgical cutting instrument with a tubular member provided with a plurality of markings (for example, depth markings) to aid a surgeon in assessing the dimensions (for example, the depth) of the tissue or structure that is cut or shaped. The tubular member may be an outer tubular member of a cutting instrument having a proximal end and a distal end. An inner tubular member having cutting means may be rotatably disposed within the outer tubular member. The cutting means or cutter may be rotatably disposed within the outer tubular member adjacent to an outer cutting aperture and adjacent the plurality of markings.09-25-2008
20080221605CUTTING DEVICE POSITIONED VIA CONTROL WIRE TO PERFORM SELECTIVE DISCECTOMY - A cutting device for performing a selective discectomy is disclosed along with a method for using the device whereby the device is inserted into the intervertebral disc at a point contralateral, anterior, or anterolateral to a site of herniation. The device includes a shaft with a cutting mechanism at its distal end. Control wire(s) attached to either or both shafts may be used to position cutting components and perform the discectomy.09-11-2008
20080221604Tissue shredding device and tissue shredding method - A tissue shredding device is provided which includes a shredding pipe which is inserted into a patient body in which a plurality of opening portions is formed in a longitudinal direction; and a plurality of wires which is withdrawn from the opening portion, bent back outside the shredding pipe, and drawn into the shredding pipe. Here, the tissue shredding device may be changed to one of a first arrangement in which the wires are withdrawn from the shredding pipe so that a tissue can be introduced toward top portions corresponding to bent-back parts of the plurality of wires, a second arrangement in which the top portions are arranged opposite to the shredding pipe, and a third arrangement in which the wires are drawn into the opening portion.09-11-2008
20130103068EXTENDABLE CUTTING MEMBER - Provided is a minimally invasive cavity formation instrument for forming tissue cavities. The instrument includes an end effector having an aperture through which a cutting element is laterally extended and retracted. The cutting element may be retracted for minimally invasive insertion into a tissue region and extended to form a tissue cavity. The end effector of the instrument may be articulated or rotated to facilitate cavity formation.04-25-2013
20130103067DISCECTOMY DEVICES AND RELATED METHODS - Tissue removal devices are disclosed herein. In some embodiments, a tissue removal device may comprise a handheld housing, a motor, and a tissue removal mechanism coupled to the handheld housing. The tissue removal mechanism may comprise a tubular member, a rotatable elongated member disposed within a lumen of the tubular member, a first impeller distal to the rotatable elongated member, and a second impeller adjacent the first impeller.04-25-2013
20130123821Single use, multipurpose neuro-dissector - A single-use, multi-purpose neuro-dissector (“dissector”), suitable for a variety of surgical procedures, is disclosed. A handle of a material which degrades in heat sufficient to sterilize same holds an extended, slender rod, preferably of stainless steel or similar suitable material. A section of the rod near its distal end (away from the handle) is turned at an angle to the remainder of the rod, and a cutting surface and cutting edge are formed in the turned-down section. The distal end of the rod forms a non-cutting tip, for example a blunt ball tip, to avoid unintentional cutting of surrounding tissues. The cutting surface and edge are coated with a material which prevents re-sharpening, such as titanium nitride. The combination of a handle material which degrades in the heat of sterilization, if attempted, and a cutting surface which is not re-sharpenable, render the dissector a single-use device.05-16-2013
20130123823CATHETER INCLUDING CUTTING ELEMENT AND ENERGY EMITTING ELEMENT - A catheter for removing tissue from a body lumen and for providing information relating to the body lumen. The catheter includes a tissue cutting element that rotates relative to the catheter body and is mounted to the drive shaft for imparting rotation to the tissue cutting element. An energy emitting element of the catheter rotates relative to the catheter body and is rotatable independently of the tissue cutting element.05-16-2013
20130131706SURGICAL CUTTING INSTRUMENT WITH SUCTION PASSAGE FORMING MEMBER - A surgical instrument having a first cutting blade and a second cutting blade that rotates within the first cutting blade during a cutting operation to cause cutting windows of the cutting blades to remove tissue from a patient also includes a suction passage forming member disposed over a suction aperture of the first cutting blade. The suction passage forming member includes an inlet, an outlet and a passage between the inlet and the outlet, the outlet communicating with the suction aperture. The surgical instrument can be used as a suction tool by applying a vacuum through an internal bore of the second cutting blade while the second cutting blade is stopped from rotating with the cutting windows of the first and second cutting blades misaligned with each other so that the vacuum is applied through the suction aperture and the suction passage forming member.05-23-2013
20130150875Optimized Pneumatic Drive Lines - In one exemplary aspect, the present disclosure is directed to a system. The system includes a pneumatic surgical instrument and a surgical console operable to provide compressed gas to the pneumatic surgical instrument. Additionally, the system includes a pneumatic drive line coupling the pneumatic surgical instrument to the surgical console. The pneumatic drive line has an internal bore configured to deliver the compressed gas to the pneumatic surgical instrument. The internal bore has a non-uniform cross-section along a length of the pneumatic drive line.06-13-2013
20100298852Endoscopic Scissors Instrument with Friction Enhancing Tissue Stops - An endoscopic instrument includes an end effector assembly having first and second scissors blades mounted on the clevis. Laterally offset from the cutting edges a tissue stop is provided on each tissue receiving surface to hold and/or put traction on tissue. The tissue stop may include tenaculum or saw-like projections.11-25-2010
20100318110CANNULA AND DEVICE FOR LIQUID JET IRRIGATION OF BONE - A cannula (12-16-2010
20130158578NEUROSURGICAL DEVICES AND ASSOCIATED SYSTEMS AND METHODS - Neurosurgical devices including or used with cannulas or catheters and associated systems and methods are disclosed herein. The neurosurgical devices can include, for example, a cannula having a main portion and an angle-forming member proximate a distal end of the main portion. The angle-forming member can be configured to transition from a substantially straight configuration while the cannula is advanced through tissue along a substantially straight first portion of a path to an angled configuration when the angle-forming member reaches an end of the substantially straight first portion of the path. The neurosurgical devices also can include, for example, a neurosurgical catheter including a surface disrupter, an elongated macerator, or a lateral opening. Neurosurgical catheterization portals also are disclosed. The neurosurgical catheterization portals can, for example, have an adjustable portal that is movable relative to a body to accommodate different entry angles of a catheterization path.06-20-2013
20120029544CIRCULAR STAPLING INSTRUMENTS WITH SECONDARY CUTTING ARRANGEMENTS AND METHODS OF USING SAME - Surgical instruments are disclosed. Various non-limiting embodiments may include an elongated shaft that has a distal end portion that is configured to operably support a circular staple cartridge therein. A tissue acquisition shaft may be rotatably supported within said elongated shaft and have a distal portion that protrudes distally beyond the distal end portion of the elongated shaft. At least one tissue acquisition member may be pivotally attached to the distal end portion of the tissue acquisition shaft such that the tissue acquisition members are selectively pivotable from a retracted position to deployed positions upon application of a deployment motion thereto. A rotatable cutting member may be operably supported adjacent to the tissue acquisition member and being selectively rotatable about the central axis upon application of a cutting actuation motion thereto.02-02-2012
20120029543TISSUE STRUCTURE PERFORATION SYSTEM AND METHOD - A surgical treatment can involve creating a pattern of perforations in a tissue structure to allow lengthening of that tissue structure. For example, a pattern of perforations can be created in the transverse carpal ligament of a patient suffering from carpal tunnel syndrome (CTS) that allows the carpal ligament to lengthen slightly. This lengthening can relieve pressure on the median nerve, thereby reducing the symptoms of CTS while maintaining the structural integrity of the wrist. A surgical instrument for use in perforating a tissue structure (such as the transverse ligament) can be an elongate structure with one or more retractable blades. Such a tool can be used in either an open or minimally invasive procedure to create a desired pattern of perforations in the tissue structure.02-02-2012
20130197553CUTTING DEVICE FOR CUTTING TISSUE - The present invention refers to a cutting device for cutting tissue or a tissue layer. A cutting device can comprise a sleeve having a first end and a second end. The sleeve may comprise a slit extending from a position at the first end of the sleeve. The first end of the sleeve may be shaped to allow insertion of the sleeve between two tissue layers. Further comprised may be a cutting rod carrying a cutting blade at a first end, the cutting rod being insertable into the sleeve through the second end of the sleeve and being movable within the sleeve. The cutting rod may be positioned within the sleeve so that the cutting blade can protrude through the slit of the sleeve. The cutting device may further comprise a support rod, the support rod being insertable into the sleeve.08-01-2013
20130197551Surgical Disc Removal Tool - The disclosure provides a tissue removal device including customizable tips. The tissue removal device may include an outer shaft and a threaded shaft. One aspect of disclosure may include a shaft cutting tool that emerges from the end of the outer shaft. Another aspect of the disclosure may include a flexible cutting blade extending from the threaded shaft. Threaded shaft may be driven by a driving mechanism in order to provide an auger-like suction mechanism to facilitate the transfer of removed tissue to a collection chamber that is coupled to the outer shaft and the threaded shaft.08-01-2013
20130197552SURGICAL INSTRUMENT WITH DISTAL BEARING ASSEMBLY - A surgical cutting instrument comprises an outer tubular member having a proximal section, an intermediate section and a central lumen. An inner tubular member is rotatably received within the central lumen and includes a distal end forming a cutting member extending distally beyond, and exposed relative to, the distal section of the outer tubular member. A bearing assembly is coupled to the outer tubular member and the inner tubular member.08-01-2013
20130197554APPARATUS AND METHODS FOR ENDOSCOPIC RESECTION OF TISSUE - The present invention provides apparatus and methods for performing endoscopic mucosal resection and endoscopic submucosal dissection of tissue. In a first embodiment, a catheter having proximal and distal ends and a balloon disposed near the distal end of the catheter is provided. A portion of the distal end of the catheter is configured to be inserted beneath a section of mucosal tissue having a lesion, and the balloon is configured to be inflated to lift the mucosal tissue in an upward direction, thereby facilitating removal of the tissue comprising the lesion. Optionally, a surgeon may advance a needle knife through the catheter to further incise submucosal tissue while the balloon is in the inflated state. If to desired, a flushing fluid may be provided to a target site during the procedure.08-01-2013
20130197555INTRALUMINAL DEVICES AND METHODS FOR DENERVATION - Methods and apparatus of nerve interruption (e.g., renal denervation) or treating gastroesophageal reflex and other luminal conditions comprise delivering acoustic energy to an artery, sphincter or other body lumen to ablate and/or otherwise remodel tissue surrounding the body lumen.08-01-2013
20130197556ARTICULATABLE SURGICAL DEVICE WITH ROTARY DRIVEN CUTTING MEMBER - Methods and devices are provided for controlling movement of a working end of a surgical device. In one embodiment, methods and devices are provided for moving an end effector on a distal end of a surgical fastening device. Movement can include rotational movement of the end effector about an axis of the shaft, articulation of the end effector relative to the shaft, and actuation of an end effector, e.g., closing, firing, and/or cutting. In other embodiments, a single cable actuator is provided and is movable between a first position, in which it is effective to rotate an end effector without actuating (i.e., closing and firing) the end effector, and a second position, in which it is effective to actuate the end effector without rotating the end effector. In other aspects, methods and devices are provided for moving a flexible neck formed on a distal end of an accessory channel for use with an endoscope. Movement of the flexible neck can be used to control positioning of a tool extending through the flexible neck.08-01-2013
20120065658ENDOSCOPIC CUTTING INSTRUMENTS HAVING IMPROVED CUTTING EFFICIENCY AND REDUCED MANUFACTURING COSTS - The present invention is directed to improving the cutting efficiency and reducing the manufacturing costs associated with endoscopic cutting instruments by eliminating the distal bearing surfaces or providing means for making the contact at the distal bearing intermittent so that surfaces do no undergo high localized heat and galling. In one embodiment, this goal is achieved by modifying or removing the axial constraints on the inner sliding member that are characteristic of conventional endoscopic shavers. In another embodiment, the improved cutting efficiency and reduced manufacturing cost is achieved by eliminating a closed end characteristic of conventional endoscopic shavers (e.g., removing the closed end of either the inner sliding member or the outer sliding member to thereby eliminate the associated bearing surface formed therebetween).03-15-2012

Patent applications in class Cutter carried on elongated probe-like member

Patent applications in all subclasses Cutter carried on elongated probe-like member