Patent application number | Description | Published |
20080287877 | Flexible Cannula With Associated Seal - A cannula assembly includes a housing and a cannula member connected to the housing. The cannula member has leading and trailing ends and defines a longitudinal axis. The cannula member further includes a main body, a seal adjacent the leading end and a flexible portion disposed between the main body and the seal. The seal is capable of receiving an instrument therethrough while maintaining a substantial sealed relation with the instrument. The flexible portion is configured to permit movement of the seal relative to the longitudinal axis during manipulation of the endoscopic instrument. The flexible portion of the cannula member may include one or more bellows. The one or more bellows may form a goose neck configuration. Alternatively, the one or more bellows define a series of ridges and grooves. | 11-20-2008 |
20080300466 | SELF CONSTRICTING ORIFICE SEAL - An apparatus is disclosed for the reception of a surgical instrument inserted through a cannula assembly. An orifice in a seal member defines a central longitudinal axis in general alignment with the cannula assembly. The seal member includes an elastic member for engaging the surgical object about the orifice and forming a fluid-tight interface. A fiber loop is at least partially embedded in the elastic member and serves to compress central portions of the elastic member around the instrument. The fiber loop may form a loop around the orifice and may cooperate with other fiber loops similarly embedded in the seal. | 12-04-2008 |
20090008425 | Angled surgical fastener apparatus - A surgical fastening apparatus includes a handle, an elongated member extending distally from the handle and a fastener applier and anvil head disposed at the distal end of the elongated member. The elongated member defines a distal offset end portion upon which the fastener applier and the anvil head are mounted. The offset end portion is angularly oriented with respect to the axis of the instrument at a predetermined fixed angle (e.g., either 45°, 60° and 75° relative to the axis of the instrument) thereby positioning the fastener applier and the anvil head at the fixed angle This feature facilitates positioning of the tissue with respect to the instrument and enhances visual access to the tissue when appropriately disposed within the fastener applier and the anvil head. Various mechanisms for effectuating the clamping of the tissue between the fastener holder and anvil, and the firing of the instrument are disclosed. | 01-08-2009 |
20090076464 | SURGICAL PORTAL WITH GEL AND FABRIC SEAL ASSEMBLY - A surgical portal assembly includes a portal adapted to provide access to underlying tissue and having a longitudinal opening extending along a longitudinal axis of the portal, and defining proximal and distal ends, and a seal. The seal comprises a gel material and a fabric material mounted relative to the gel material. The seal includes internal surfaces defining a passage for reception and passage of a surgical object in substantial sealed relation therewith. A fabric layer may be mounted adjacent each of proximal and distal surfaces of the seal. The internal surfaces defining the passage of the seal may include the gel material whereby the gel material establishes the sealed relation with the surgical object. The seal includes an inner seal segment which may generally taper in a distal direction to define a general funnel configuration. Alternatively, the seal includes an inner seal segment which defines a general sloped portion to facilitate insertion of the surgical object and possibly minimize potential of inversion of the inner seal area upon withdrawal of the surgical object. The seal may include at least one support collar mounted adjacent a periphery of the seal element. The seal may further include an elastomeric material having a rigidity greater than the rigidity of the gel material. | 03-19-2009 |
20090076465 | COMPOSITE SEAL AND METHOD FOR MANUFACTURING - The present disclosure provides a composite surgical seal for use in a surgical access device which defines an access channel through it and includes a seal member configured and dimensioned to form a seal with a housing interior wall of a surgical access device. The seal member includes a layer defining an orifice therethrough and a fabric layer substantially encapsulating the resilient layer such that a surface of the resilient layer which defines the orifice is covered by the fabric layer. The access channel is configured and dimensioned such that insertion of a surgical instrument into the access channel causes the seal member to form a substantial sealing relation with the surgical instrument inserted therethrough. A method of forming a composite surgical seal in accordance with the present disclosure is also provided herewith. | 03-19-2009 |
20090105635 | ACCESS ASSEMBLY WITH SEAL LUBRICANT MECHANISM - The present disclosure relates to surgical access assemblies and surgical valves or seals of the type adapted to allow the introduction of a surgical instrument or object therethrough. In particular, the surgical access assemblies and seals disclosed herein are adapted to facilitate the insertion, withdrawal, and manipulation of a surgical instrument through the incorporation of a lubricous substance or fluid. | 04-23-2009 |
20090182279 | TROCAR ANCHOR - Apparatus and methods for providing access to a body cavity without substantial loss of inflation gas therein. The apparatus includes an access assembly that has a tubular member having a proximal end, a distal end, an elastic portion interposed the proximal end and the distal end, and a lumen therethrough. An anchor sleeve is disposed coaxially over the tubular member and has a radially expandable region. The anchor sleeve is moveable between an axially elongated configuration and an axially shortened configuration and is biased toward the axially shortened configuration by a force exerted by the elastic portion of the tubular member. The axially shortened configuration corresponds to the anchor sleeve being in the fully deployed position. Methods for providing anchored access to a cavity within a patient are also disclosed. | 07-16-2009 |
20090326461 | LOW PROFILE INSTRUMENT ACCESS DEVICE - A low profile surgical access device includes an elongated cannula having an opening defined at a proximal end thereof including an inner peripheral surface dimensioned to facilitate passage of instrumentation therethrough and an outer peripheral surface configured to operatively engage and removably secure to tissue via, e.g., fixation ribs, adhesive, anchors, clips, suction elements, expandable materials and/or combinations thereof. A valve is operatively coupled to the elongated cannula and provides a substantially fluid tight seal when instrumentation is inserted through the cannula. A seal housing is included which is positionable relative to the cannula and which is configured to operatively engage and removably secure to tissue. The instrument seal in the seal housing is positioned in vertical registry with the valve in the elongated cannula. | 12-31-2009 |
20090326467 | SURGICAL PORTAL APPARATUS WITH WAFFLE SEAL - A surgical portal apparatus includes a portal housing, an elongated portal member connected to the portal housing and depending therefrom, and a seal member comprising a resilient material and being mounted to the portal housing. The portal housing and the portal member have an axial bore for reception and passage of a surgical object. The seal member includes leading and trailing faces and has inner portions defining a passage to permit passage of a surgical object. One of the leading and trailing faces defines a plurality of recessed cells formed within interconnected struts. The interconnected struts are relatively flexible to flex upon radial offset manipulation of the object to permit corresponding movement of the passage while substantially maintaining a seal about the surgical object. At least some of the recessed cells define a generally rectangular arrangement. Preferably, the leading end face of the seal member has the recessed cells. | 12-31-2009 |
20100016852 | MEDICAL INSTRUMENT ELECTRONICALLY ENERGIZED USING DRIVE CABLES - An electrically energized medical instrument uses one or more drive cables to both actuate mechanical components of a wrist mechanism or an effector and to electrically energize the effector. Electrical isolation can be achieved using an insulating main tube through which drive cables extend from a backend mechanism to the effector, an insulating end cover that leaves only the desired portions of the effector exposed, and one or more seals to prevent electrically conductive liquid from entering the main tube. Component count and cost may be further reduced using a pair of pulleys that are shared by four drive cables. | 01-21-2010 |
20100023052 | STAPLE FOR USE IN SURGICAL PROCEDURES - A staple having a backspan and a first and second leg extending distally from the backspan. Each of the first and second legs includes a bend zone dividing each leg into a traversing leg portion and a linear clenching leg portion. When formed through tissue, each of the clenching leg portions of the first and second legs are formed substantially parallel to the backspan. A staple assembly is also provided including a substantially box staple having a backspan and a first and a second leg extending distally from the backspan. The staple assembly includes a staple plate positionable over the first and second legs. | 01-28-2010 |
20100298775 | ACCESS SHEATH WITH CENTRAL SEAL - An access apparatus for use during a surgical procedure to provide access to the interior of the body includes an access member defining a longitudinal axis and having a proximal end for being disposed at an exterior side of the body and a distal end for extending into the interior of the body. The access member has a bore therethrough dimensioned to permit passage of an object. A seal is disposed within the longitudinal bore substantially at the rotational center of the access member. The seal has inner seal portions adapted to establish a substantial seal about a surgical instrument introduced within the longitudinal bore of the access member. An access housing may be mounted to the proximal end of the access member. A zero closure valve may be mounted to the access housing. The zero-closure valve may be adapted to close in the absence of the instrument. The seal may be generally disc shaped. The seal may define an aperture for reception of the surgical instrument. The seal may comprise a fabric material, an elastomeric material or a gel material. | 11-25-2010 |
20110021881 | TROCAR ANCHOR - Apparatus and methods for providing access to a body cavity without substantial loss of inflation gas therein. The apparatus includes an access assembly that has a tubular member having a proximal end, a distal end, an elastic portion interposed the proximal end and the distal end, and a lumen therethrough. An anchor sleeve is disposed coaxially over the tubular member and has a radially expandable region. The anchor sleeve is moveable between an axially elongated configuration and an axially shortened configuration and is biased toward the axially shortened configuration by a force exerted by the elastic portion of the tubular member. The axially shortened configuration corresponds to the anchor sleeve being in the fully deployed position. Methods for providing anchored access to a cavity within a patient are also disclosed. | 01-27-2011 |
20110077597 | LOW PROFILE INSTRUMENT ACCESS DEVICE - A low profile surgical access device includes an elongated cannula having an opening defined at a proximal end thereof including an inner peripheral surface dimensioned to facilitate passage of instrumentation therethrough and an outer peripheral surface configured to operatively engage and removably secure to tissue via, e.g., fixation ribs, adhesive, anchors, clips, suction elements, expandable materials and/or combinations thereof. A valve is operatively coupled to the elongated cannula and provides a substantially fluid tight seal when instrumentation is inserted through the cannula. A seal housing is included which is positionable relative to the cannula and which is configured to operatively engage and removably secure to tissue. The instrument seal in the seal housing is positioned in vertical registry with the valve in the elongated cannula. | 03-31-2011 |
20110174425 | SURGICAL ACCESS DEVICE AND MANUFACTURE THEREOF - A surgical access system includes a tubular member defining a longitudinal axis and having an axial lumen. The tubular member includes a braided material adapted to expand from a first initial condition having a first cross-sectional dimension to a second expanded condition having a second-cross sectional dimension greater than the first cross-sectional dimension. The tubular member defines an oblique end surface. An access housing is mounted to the tubular member. The access housing is dimensioned for engagement by the user. A process for manufacturing a surgical access device is also disclosed. | 07-21-2011 |
20120010611 | ELECTROSURGICAL TOOL COVER - A cover for an electrosurgical instrument having a wrist structure and an end effector is provided. The cover includes a hollow elongated structure, which includes a tip cover portion and a base cover portion integrally connected to the tip cover portion. The tip cover portion has a distal end with an opening therethrough sized to receive the end effector of the electrosurgical instrument and is composed of a first, electrically insulative material having a flexibility sufficient to allow the end effector to be manipulated while the end effector is received in the opening. The base cover portion is composed of a second material having a higher tear strength than the first material. The tip cover portion and the base cover portion overlap at an overlap region configured to receive the wrist structure of the electrosurgical instrument when the end effector is received in the opening. | 01-12-2012 |
20120203274 | STAPLE FOR USE IN SURGICAL PROCEDURES - A staple is provided having a backspan and a first and second legs extending distally from the backspan. Each of the first and second legs includes a bend dividing each leg into a traversing leg portion and a substantially linear clenching leg portion. A staple plate is positionable over the first and second legs between the backspan and the first and second clenching leg portions. An anvil assembly has first and second movable members which move toward to one another to engage outer surfaces of the first and second clenching leg portions. There is further disclosed a method of forming the staple through tissue. | 08-09-2012 |
20120238827 | ACCESS SHEATH WITH CENTRAL SEAL - A surgical access apparatus includes an access member defining a longitudinal axis and proximal and distal ends, and having a longitudinal opening. A central seal member is mounted to the access member at an approximate rotational center thereof. The central seal member has inner seal portions defining a seal passage dimensioned for sealed reception of a surgical object. | 09-20-2012 |
20130072955 | SURGICAL STAPLING DEVICE - A surgical stapling device is disclosed for performing circular anastomoses. The surgical stapling device includes a handle portion, an elongated body portion and a head portion including an anvil assembly and a shell assembly. A removable trocar for attachment to the anvil assembly is also disclosed which includes a rib positioned proximally of a mounting projection. The rib is positioned to align the mounting projection with associated engagement structure of the anvil assembly. | 03-21-2013 |
20130172683 | SURGICAL PORTAL WITH GEL AND FABRIC SEAL ASSEMBLY - A surgical portal assembly provides access to underlying tissue. The surgical portal has a seal which includes a gel layer and a fabric layer. The seal includes internal surfaces defining a passage for reception and passage of a surgical object in substantial sealed relation therewith. | 07-04-2013 |
20130256381 | Tool Member Cover and Cover Deployment Device - A surgical instrument including a tool member cover and a cover deployment device are disclosed. The cover is supported adjacent to or on the tool assembly of the surgical instrument and is movable from a first position in which the tool assembly is uncovered to a second position in which the tool assembly is at least partially encompassed by the cover. The deployment device is provided for moving the cover from the first position to the second position. | 10-03-2013 |
20130277412 | Surgical Stapling Device for Performing Circular Anastomoses - This application is directed to a surgical stapling device for performing circular anastomoses. The surgical stapling device includes a handle portion, an elongated body portion and a head portion including an anvil assembly and a shell assembly. A tactile indication mechanism is also provided for notifying a surgeon that the device has been fired and for notifying a surgeon that the anvil head has been unapproximated a distance sufficient to permit the anvil head to tilt. | 10-24-2013 |
20140039550 | STAPLE FOR USE IN SURGICAL PROCEDURES - A staple is provided having a backspan and a first and second legs extending distally from the backspan. Each of the first and second legs includes a bend dividing each leg into a traversing leg portion and a substantially linear clenching leg portion. A staple plate is positionable over the first and second legs between the backspan and the first and second clenching leg portions. An anvil assembly has first and second movable members which move toward to one another to engage outer surfaces of the first and second clenching leg portions. There is further disclosed a method of forming the staple through tissue. | 02-06-2014 |