Advanced Medical Optics, Inc. Patent applications |
Patent application number | Title | Published |
20130103040 | METHOD AND DEVICE FOR MANIPULATION OF AN INTRAOCULAR LENS - A method for charging a deformable intraocular lens into a receptacle through a slit or opening in the receptacle periphery, the lens in un-deformed state comprising a) a roughly disc shaped optic part configured to act as a lens when inserted into an eye and b) at least two elongated haptic legs, each leg having an inner end attached to the optic part, an outer end being free and intermediate points in between the inner end and the free end, each leg being curved in unstressed state and being flexible to at least a less curved configuration under stress. The method comprises the steps of i) stretching the legs to align the legs along a substantially straight line, ii) aligning or maintaining the substantially straight line over and substantially parallel with the slit or opening of the receptacle, and iii) transferring at least the two legs through the slit or opening into the receptacle. A device for stretching the haptics of a lens comprises i) at least two haptic guiding surfaces arranged for each of the at least two haptic legs, the guiding surfaces having less curvature than the legs in un-stressed state, ii) a seat for the lens arranged with respect to the guiding surfaces so as to allow, when a lens is positioned in the seat, contact between a first point on the leg and its guiding structure and iii) a lens guiding arrangement allowing the lens to be moved along a path bringing at least a second point on the leg into contact with, or closer to, its guiding structure or a transfer opening allowing passage of the lens with the haptics, having said less curvature, to a receptacle. | 04-25-2013 |
20100130966 | Apparatus, System and Method for Precision Depth Measurement - Systems, apparatus, and methods are disclosed for locating tissue layer transitions within a cornea, including focusing a laser to a laser spot with an energy below a photodisruption threshold of the cornea, varying a position of the focal spot of the laser between an anterior surface of the cornea and a posterior surface of the cornea, and determining one or more transitions of the tissue layers based on a change in harmonic light generated by the laser spot. | 05-27-2010 |
20100121257 | CAPACITIVE FLUID LEVEL SENSING - A capacitive fluid level sensing arrangement for use in a medical device is provided. The arrangement includes at least one pair of conductive plates configured to increase and decrease the amount of electric charge stored in relation to the level of fluid within a fluid maintaining device, such as a reservoir. The conductive plates are electrically connected to a medical device and are configured to measure the charge stored between the plates and thus sense the fluid level. The electric circuit may communicate the measurement to an instrument host arrangement for operating a pump configured to remove fluid from the reservoir and move the fluid to a collector when the level exceeds a preset upper level amount. The instrument host arrangement may stop operating the pump when the fluid level is reduced to a preset lower level amount. | 05-13-2010 |
20100114006 | GLAUCOMA DRAINAGE SHUNTS AND METHODS OF USE - A method of treating glaucoma in an eye utilizing an implanted shunt having an elastomeric plate and a non-valved elastomeric drainage tube. The plate is positioned over a sclera of the eye with an outflow end of the elastomeric drainage tube open to an outer surface of the plate. An inflow end of the drainage tube tunnels through the sclera and cornea to the anterior chamber of the eye. The drainage tube collapses upon initial insertion within an incision in the selera and cornea, or at a kink on the outside of the incision, but has sufficient resiliency to restore its patency over time. The effect is a flow restrictor that regulates outflow from the eye until a scar tissue bleb forms around the plate of the slunt. The plate desirably has a peripheral ridge and a large number of fenestrations, and a longer suturing tab extending from one side of the plate to enhance visibility and accessibility when suturing the shunt to the selera. | 05-06-2010 |
20100100178 | Multifocal Intraocular Lens - An intraocular lens for providing a subject with vision at various distances includes an optic having a first surface with a first shape, an opposing second surface with a second shape, a multifocal refractive profile, and one or more diffractive portions. The optic may include at least one multifocal diffractive profile. In some embodiments, multifocal diffractive and the multifocal refractive profiles are disposed on different, distinct, or non-overlapping portions or apertures of the optic. Alternatively, portions of the multifocal diffractive profiles and the multifocal refractive profiles may overlap within a common aperture or zone of the optic. | 04-22-2010 |
20100100177 | Multifocal Intraocular Lens - The invention provides an IOL, a method of making the IOL, and a method of using the IOL, wherein the IOL includes a central region and an outer region. An ophthalmic lens comprises a central region and an outer region. the central region is disposed about an optical axis and comprises a diffractive pattern having an add power. the central region also has a first power and a second power for visible light. the first power is a power for far focus and the second power equals to the sum of the power for far focus and the add power. the outer region encloses the central region and generally has no multifocal diffractive power. At least a portion of the outer region has a curvature that varies with distance from the optical axis. the outer region may include a peripheral region and at least one intermediate region that encloses the central region, wherein the peripheral region encloses the at least one intermediate region and the at least one intermediate region provides at least one intermediate power that is different from the first power and the second power. | 04-22-2010 |
20100097569 | Multifocal Intraocular Lens - An intraocular lens for providing a subject with vision at various distances includes an optic having a first surface with a first shape, an opposing second surface with a second shape, a multifocal refractive profile, and one or more diffractive portions. The optic may include at least one multifocal diffractive profile. In some embodiments, multifocal diffractive and the multifocal refractive profiles are disposed on different, distinct, or non-overlapping portions or apertures of the optic. Alternatively, portions of the multifocal diffractive profiles and the multifocal refractive profiles may overlap within a common aperture or zone of the optic. | 04-22-2010 |
20100094415 | INTRAOCULAR LENS AND CAPSULAR RING - A device includes a plurality of ringlets connected together to form a ring having a longitudinal axis. Each ringlet includes a first element and a second element. The first and second elements each extend from a first end through a central portion to a second end. The first and second ends are disposed at radially outer positions with respect to the ring than the central portion. The central portion is longitudinally displaced from the first and second ends. The first and second elements are separated and spaced apart from each other at the central portions thereof and are joined together at the first ends thereof and the second ends thereof. The ringlets are connected together such that the first ends of the elements of one ringlet are connected to the second ends of the elements of an adjacent ringlet. | 04-15-2010 |
20100091243 | SINGLE-ARM OPTICAL COHERENCE TOMOGRAPHY PACHYMETRY SYSTEM AND METHOD - A single arm optical coherence tomography (OCT) pachymetry system and methods for measuring layers of the eye are disclosed. The system includes an artificial lens for positioning on the eye, a light source emitting a measurement light beam along an optical path posteriorly toward the cornea, and a detector receiving and measuring a combined signal of light reflections anteriorly from a plurality of reflecting surfaces associated with the eye. The reflecting surfaces include a first reflecting surface associated with the artificial lens and one or more second reflecting surfaces corresponding to corneal layers. A processor is coupled to the detector and is configured to determine a distance between two of the corneal layers from the combined signal. | 04-15-2010 |
20100082017 | LASER MODIFICATION OF INTRAOCULAR LENS - A system of modifying an intraocular device located within an eye, wherein the system includes a laser assembly and a controller coupled to the laser assembly. The laser assembly outputs a pulsed laser beam having a pulse width between about 300 picoseconds and about 10 femtoseconds, and the controller directs the laser assembly to output the pulsed laser beam into the intraocular device. One or more slip zones are formed within the intraocular device in response thereto, and the slip zones are configured to modify a refractive profile of the intraocular device. A method of modifying a refractive profile of an eye having an intraocular device implanted therein, wherein the method includes determining a corrected refractive profile for the eye based on an initial refractive profile, identifying one or more locations within the intraocular device based on the corrected refractive profile, and directing a pulsed laser beam at the locations to produce the corrected refractive profile. | 04-01-2010 |
20100076453 | SYSTEMS AND METHODS FOR PROVIDING REMOTE DIAGNOSTICS AND SUPPORT FOR SURGICAL SYSTEMS - Systems and methods for medical care, and more particularly, systems and methods for providing remote diagnostics and support for surgical systems. A central computer system is communicatively coupled to one or more computer-based surgical machines. The central computer system is programmed to monitor the operation of each of the surgical machines, diagnose any problems that occur with the machines, and notify a technician of potential problems with the machines to provide for an efficient support system that minimizes undesirable downtime of the surgical machines. | 03-25-2010 |
20100069825 | SYSTEM AND METHOD FOR CONTROLLING A TRANSVERSE PHACOEMULSIFICATION SYSTEM USING SENSED DATA - A method and system for use in an ocular surgical procedure is provided. The design includes a handpiece having an ultrasonically vibrating tip operational within a plurality of operating modes including a first operating mode and a sensing device, such as a vacuum pressure sensor. A controller is connected to the handpiece and sensing device and is configured to receive data from the sensing device and adjust at least one operational parameter (time/duty cycle of operation, power during operation) associated with the first operating mode and adjust at least one parameter associated with another operating mode based on the data received from the sensing device. Operational modes may include multiple longitudinal or non-longitudinal modes (torsional, transversal, etc.) or combinations of longitudinal and/or non-longitudinal modes. | 03-18-2010 |
20090318933 | PRE-LOADED IOL INSERTION SYSTEM - A system for easily transferring an intraocular lens (IOL) from an inserter into a patient's eye. The system includes an inserter handpiece with a holding station for receiving or storing an IOL. The IOL may be pre-loaded within the holding station during manufacture, and the inserter handpiece coupled to a delivery tube so that the entire system is ready for use by a surgeon to implant an IOL. The IOL may have an optic and leading and trailing haptics coupled to the optic, and the holding station may be capable of manipulating the haptics as desired to facilitate transfer of the IOL through the delivery tube into the eye. For instance, the holding station may fold one or both of the haptics over the optic. Preferably, the holding station maintains the haptics in their folded positions during transfer of the IOL into the delivery tube. The holding station desirably maintains the IOL in a relaxed configuration during storage. A small opening on one side may be provided to introduce a narrow tool for folding one of the haptics over the optic. | 12-24-2009 |
20090318512 | Methods of maintaining ocular tissue cell membrane integrity using cetylpyridinium chloride - A multi-purpose contact lens care solution having high antimicrobial activity comprising, in an aqueous liquid medium, cetylpyridinium chloride and a non-ionic surfactant. In one embodiment of the invention, the non-ionic surfactant is a poly(oxypropylene)-poly(oxyethylene) block copolymer. The solution may optionally also include additional antimicrobial components, a buffer component, a viscosity inducing component, a surfactant, taurine, propylene glycol and/or a tonicity component. This solution additionally prevents losses in ocular tissue membrane integrity during contact lens wear. | 12-24-2009 |
20090306581 | CONTROLLING A PHACOEMULSIFICATION SYSTEM BASED ON REAL-TIME ANALYSIS OF IMAGE DATA - A design for dynamically adjusting parameters applied to a surgical instrument, such as an ocular surgical instrument, is presented. The method includes detecting surgical events from image data collected by a surgical microscope focused on an ocular surgical procedure, establishing a desired response for each detected surgical event, delivering the desired response to the ocular surgical instrument as a set of software instructions, and altering the surgical procedure based on the desired response received as the set of software instructions. | 12-10-2009 |
20090292293 | PLUNGERS FOR INTRAOCULAR LENS INJECTORS - An intraocular lens (IOL) injector for delivering an IOL into an eye of a patient. The injector includes an IOL load chamber and connected delivery tube, and a push rod for urging the IOL through the delivery tube and out of a distal tip thereof. The push rod is guided and biased against one side of the injector load chamber. The injector may include an inflatable pusher for urging the IOL through the delivery tube and out of a distal tip thereof. The inflatable pusher has a proximal end that may be open to an internal cavity of the injector, wherein a plunger movable in the injector cavity forces fluid such as air or saline into the pusher. A distal end of the pusher may be forked to capture a trailing end of the IOL, or may have a bulbous configuration to ensure the pusher does not pass the IOL. | 11-26-2009 |
20090270876 | BACK LOADED IOL INSERTION CARTRIDGE - A rear-loaded injector cartridge for an intraocular lens (IOL) having a proximal opening that provides a haptic slot. The haptic slot receives a leading haptic of an IOL loaded therein, and temporarily retains the leading haptic while the optic of the IOL is inserted into a holding area of the cartridge. As the optic passes by, the leading haptic folds over the top of the optic, on its anterior side. The length of the haptic retention slot is sufficient to maintain the leading haptic in its anteriorly folded position while the IOL remains in holding area, typically while the cartridge is mated with a handpiece of the injector. The cartridge also has a rear or proximal cut out which advantageously keys with a similarly-sized rail on the handpiece so that the cartridge cannot be inserted in the wrong way. | 10-29-2009 |
20090248152 | INTRAOCULAR LENS HAVING A HAPTIC THAT INCLUDES A CAP - An intraocular lens is disclosed, with an adjustable optic that changes shape in response to a deforming force exerted by the zonules of the eye. A haptic supports the optic around its equator and couples the optic to the capsular bag of the eye. The haptic may include a cap on the anterior and/or posterior surfaces of the lens. The lens may include a force transfer member, such as a hinge, that couples forces from the haptic to the cap, so that a radial force on the haptic changes the curvature of the cap. The haptic and optic may be refractive index-matched. The cap may be made of the haptic material, which is stiffer than the optic material, and can influence the deformation of the lens during accommodation. A cap on the anterior surface may produce an axial movement of the lens in an anterior direction during accommodation. The cap may also protect the surfaces of the optic during handling and installation. The posterior surface of the lens may be shaped so that it does not significantly offset the contributions of the anterior surface during accommodation. | 10-01-2009 |
20090247640 | ANTIMICROBIALS HAVING POLYQUATERNARY AMMONIUMS AND ALCOHOL-BEARING AMIDOAMINES AND METHODS FOR THEIR USE - Antimicrobial or preservative compositions with high user comfort and/or low ocular irritation. The compositions comprise a polyquaternary ammonium compound and an amidoamine having an alcohol group and exhibit synergistic antimicrobial activity. The compositions may be used as stand-alone antimicrobials/preservatives or may be incorporated into other ocular compositions such as those for ocular lens care or the treatment of ocular conditions. | 10-01-2009 |
20090213326 | TORIC INTRAOCULAR LENS WITH SPATIALLY-VARIANT ASTIGMATISM - An intraocular lens for correcting or reducing the astigmatism of a cornea includes a pupil that is spatially divided into discrete zones, with each zone having a particular astigmatism magnitude and astigmatism orientation. In one embodiment, the zones all have the same astigmatism magnitude, which is equal and opposite the cornea astigmatism magnitude to within a particular tolerance, such as 0.25 diopters. In one embodiment, some or all of the zones all have different astigmatism orientations, with the angular separation between astigmatism orientations being on the order of the rotational misalignment tolerance of the lens to the cornea. The visual performance of such a lens deteriorates more slowly with rotational misalignment, when compared to a comparable lens having a uniform astigmatism orientation across its entire pupil, leading to more relaxed tolerances for a surgeon that implants the lens. | 08-27-2009 |
20090205988 | ERGONOMIC DISPOSABLE TRAY FOR HOLDING STERILE SURGICAL COMPONENTS - The field of the invention relates to medical packaging and, more particularly, to trays for holding sterile surgical components. In one embodiment, an ergonomic disposable tray is provided which can rest easily in the palm of the hand and be easily grasped. Moreover, the tray includes the addition of a raised triangular protrusion in all four opposing corners, to make opening the tray equally efficient for both right and left handed users. These features will allow the user to maintain control of the tray while peeling back the lid, keeping the internal components sterile. | 08-20-2009 |
20090195748 | OPHTHALMIC LENS WITH MULTIPLE PHASE PLATES - An ophthalmic lens for providing a plurality of foci has an optic including an anterior surface, a posterior surface, and an optical axis. The ophthalmic lens further includes a central phase plate, an intermediate phase plate surrounding the central phase plate, and an outer refractive region. The central phase plate comprises a first base curvature having a first radius of curvature and is configured such that the lens is able to direct light to a first focus and a second focus corresponding different diffraction orders of the phase plate. The intermediate phase plate is configured to change the overall resultant distribution of light directed to the second focus. The outer refractive region has no diffractive optical power and surrounds the intermediate phase plate. The outer refractive region is configured to direct light to the second focus and has an aspheric shape configured to reduce an optical aberration. | 08-06-2009 |
20090190808 | USER ADJUSTMENT MEASUREMENT SCALE ON VIDEO OVERLAY - A method and system for superimposing a ruler on a visual representation of a surgical procedure is presented. The design includes providing a reference object while recording the visual representation of the surgical procedure, scaling the ruler to correspond to the reference object within the visual representation of the surgical procedure, and superimposing the ruler from the scaling on the visual representation for subsequent viewing. | 07-30-2009 |
20090187242 | INTRAOCULAR LENS HAVING EXTENDED DEPTH OF FOCUS - An intraocular lens is disclosed, which includes a diffractive element with a relatively low add power. The add power may be less than about 2 Diopters, may be less than about 1 Diopter, or may be in the ranges of 0.5 to 2.5 Diopters, or 1.0 to 2.0 Diopters, or 1.5 to 2.0 Diopters, or 1.0 to 1.5 Diopters. The low-add-power diffractive element increases the depth of the focus of the intraocular lens, for example, compared to a similarly shaped intraocular lens without the diffractive element. In one embodiment, the depth of focus is defined in terms of a threshold MTF value at a particular spatial frequency. The threshold may be an absolute threshold, such as 0.10, 0.15, 0.17, 0.20, 0.25 or 0.30, or may be a relative threshold, such as a particular percentage of the peak value. The spatial frequency may be 25 line pairs per mm, 50 line pairs per mm, 100 line pairs per mm, or any suitable value. | 07-23-2009 |
20090171329 | Spaster pattern and pulse blanking - System and method of photoaltering a region of a material using a pulsed laser beam. The method includes scanning the pulsed laser beam in a first portion of the region with a first pattern, scanning the pulsed laser beam in a second portion of the region with a second pattern, and separating a flap of the material at the region. The system includes a laser, a controller selecting at least first and second patterns, and a scanner operable in response to the controller. The first pattern has a first maximum acceleration associated with the second portion, and the second pattern has a second maximum acceleration associated with the second portion. The second maximum acceleration is less than the first maximum acceleration. The scanner scans the pulsed laser beam from the laser in the first portion with the first pattern and in the second portion with the second pattern. | 07-02-2009 |
20090163602 | SILICONE CONTAINING POLYMERIC MATERIALS - A polymeric material with a variable modulus of elasticity is described herein. The polymeric material described herein is useful for forming implantable medical devices (e.g. ophthalmic lenses, breast implants, and body augmentation devices). In addition, medical devices formed from the polymer material can be used to controllably release a therapeutic agent. Also, the polymeric material may be used to prepare topical compositions or other applications or devices where control of a mechanical property such as material modulus is important. | 06-25-2009 |
20090161090 | Systems and Methods for Measuring the Shape and Location of an object - A system for determining the shape of an object and/or a distance of the object from the system includes a first plurality of light source, a second plurality of light sources, and a detector or detector array. The first plurality of light sources are disposed about a central axis and are separated from the central axis by radial distances defining an aperture in the first plurality of light sources. The system also includes an optical system adapted to provide light from the second plurality of light sources through the aperture to the object. The system may further include a computer configured to determine the shape of the object and/or the distance of the object from the system using light from the first and second plurality of light sources that is reflected from the object and received by the detector. | 06-25-2009 |
20090144091 | MEDICAL PRODUCT MANAGEMENT METHODS - A method for providing a medical product including receiving a request for a medical product for use with a specific patient to be used at a particular location, and creating a patient specific package which includes the medical product. The method further includes associating at least one of the patient specific package or the medical product with the specific patient, and causing the patient specific package to be delivered to the particular location. | 06-04-2009 |
20090126870 | METHOD OF MAKING SUB-SURFACE PHOTOALTERATIONS IN A MATERIAL - A method of photoaltering a material using a pulsed laser beam includes selecting a first pulse energy and a first focal point separation based on a relationship of pulse energy and focal point separation combinations enabling layer separation of the material by photoalteration, and scanning the pulsed laser beam along a scan region at the first pulse energy and the first focal point separation. The relationship has a slope and has a distinct change in the slope. The distinct change in the slope is associated with a second pulse energy of the relationships and the first pulse energy is equal to or less than the second pulse energy. | 05-21-2009 |
20090118739 | Method and Device for Manipulation of an Intraocular Lens - A method for charging a deformable intraocular lens into a receptacle through a slit or opening in the receptacle periphery, the lens in un-deformed state comprising a) a roughly disc shaped optic part configured to act as a lens when inserted into an eye and b) at least two elongated haptic legs, each leg having an inner end attached to the optic part, an outer end being free and intermediate points in between the inner end and the free end, each leg being curved in unstressed state and being flexible to at least a less curved configuration under stress. The method comprises the steps of i) stretching the legs to align the legs along a substantially straight line, ii) aligning or maintaining the substantially straight line over and substantially parallel with the slit or opening of the receptacle, and iii) transferring at least the two legs through the slit or opening into the receptacle. A device for stretching the haptics of a lens comprises i) at least two haptic guiding surfaces arranged for each of the at least two haptic legs, the guiding surfaces having less curvature than the legs in un-stressed state, ii) a seat for the lens arranged with respect to the guiding surfaces so as to allow, when a lens is positioned in the seat, contact between a first point on the leg and its guiding structure and iii) a lens guiding arrangement allowing the lens to be moved along a path bringing at least a second point on the leg into contact with, or closer to, its guiding structure or a transfer opening allowing passage of the lens with the haptics, having said less curvature, to a receptacle. | 05-07-2009 |
20090118663 | SYSTEMS AND METHODS FOR ENHANCED OCCLUSION REMOVAL DURING OPHTHALMIC SURGERY - A method and apparatus for performing a surgical procedure is provided. The surgical procedure may be a phacoemulsification procedure but other procedures may employ the techniques disclosed. The design includes sensing, within the surgical site, for a material change in fluid flow relative to a predetermined threshold. Upon sensing the fluid flow materially differs from the predetermined threshold, the design temporarily increases aspiration vacuum pressure to the surgical site above a predetermined upper threshold toward a maximum vacuum level. The design applies electrically generated disruptive energy, including but not limited to laser and/or relatively low power ultrasonic energy, to the surgical site from a first point in time measured from when aspiration vacuum pressure is above the predetermined upper threshold to a second point in time where pressure falls below a predetermined lower threshold. | 05-07-2009 |
20090109403 | Systems and Software for Wavefront Data Processing, Vision Correction, and Other Applications - A system for providing vision contains an aberrometer, a wavefront sensor, and a transfer optical system. The aberrometer is configured to measure a received wavefront. The aberrometer includes a wavefront sensor and a transfer optical system for transferring an input wavefront so as to the provide the received wavefront at or near the wavefront sensor. The system also includes a processor in communication with the aberrometer, a readable memory, and instructions located within the memory. The readable memory contains one or more system error parameters and instructions available to the processor. The instructions are for determining at least one aberration of the received wavefront and calculating the input wavefront based on the received wavefront and the one or more system error parameters. | 04-30-2009 |
20090103785 | OCULAR IDENTIFICATION SYSTEM FOR USE WITH A MEDICAL DEVICE - A method and system for authenticating a user of a medical device is provided. Ocular signatures are stored in a database for at least one permitted user. Stored ocular signatures are compared to an individual ocular signature. The user can employ selected functionality of the medical device when at least one stored ocular signature substantially matches the individual ocular signature. The device may include a medical component and a computing device. The computing device includes a database configured to receive and maintain permitted user ocular signatures and a computational utility configured to compare the ocular signature of the user to at least one permitted user ocular signature maintained in the database. Upon determining that the ocular signature of the user substantially matches at least one permitted user ocular signature, the user is authorized to employ selected functionality of the medical device. | 04-23-2009 |
20090088839 | POLYMER COMPOSITIONS SUITABLE FOR INTRAOCULAR LENSES AND RELATED METHODS - A polymeric material with a molecular response time that makes it suitable for use near fragile body tissues. The polymeric material is useful for both low modulus and high modulus applications thereby simplifying the multi-part polymeric article manufacturing process and creating better integrated multi-part polymeric articles. Cross-linked polymers with different moduli may be obtained utilizing the same or similar starting materials but modifying the amount of catalyst, the amount of cross-linking agent, and/or the amount of methyl vinyl cyclics. | 04-02-2009 |
20090076603 | PARTIAL COATING OF INTRAOCULAR LENSES USING ATMOSPHERIC PRESSURE CHEMCIAL VAPOR DEPOSITION - An atmospheric pressure chemical vapor deposition apparatus has been developed for partially coating acrylic based intraocular lenses. In one embodiment intraocular lenses may be coated with a hydrophilic material comprising silicone dioxide and polyethylene glycol. In another embodiment the haptics may be coated with hydrophilic material, which aids in the post implantation unfolding of the lenses while not diminishing posterior bag adhesion of the hydrophobic surface of the untreated optic portion. | 03-19-2009 |
20090062811 | DEVICES AND METHODS FOR STORING, LOADING, AND DELIVERING AN INTRAOCULAR LENS - A cartridge for delivering an intraocular lens into the eye of a subject that comprises a body disposed along a longitudinal axis having a distal end and a proximal end, and a tapered lumen disposed along the longitudinal axis having an aperture at the distal end of the body. The aperture and at least a portion of the tapered lumen each consist of an upper portion and a lower portion. The upper portions of the aperture and lumen each have a first width and a cross-section that is generally arcuate. The lower portions of the aperture and lumen each have a cross-section that is generally horizontally disposed and have a second width that is greater than the first width of the aperture and lumen. The cartridge may be loaded with an intraocular lens using a packaging system. The intraocular lens may be placed into the eye of a subject using a corresponding inserter having a pushrod with a saddle disposed at the tip thereof. The intraocular lens is preferably draped over the saddle during insertion. | 03-05-2009 |
20090049522 | SYSTEMS AND METHODS FOR MANAGING AND DISTRIBUTING USER PROFILES FOR SURGICAL SYSTEMS - A medical system is presented, where the system includes a medical profile directory configured to maintain a set of medical system profiles, a medical profile manager configured to update and maintain medical system profiles within the medical profile directory, and a server configured to interface with the medical profile manager to facilitate medical system profile maintenance. The server is configured to transmit information from at least one medical system profile to a surgical system, thereby enabling the surgical system to employ a current operational parameter within the medical system profile desired by a user. | 02-19-2009 |
20090048607 | SYSTEMS AND METHODS FOR PHACOEMULSIFICATION WITH VACUUM BASED PUMPS - The invention is generally directed to systems and methods for ophthalmic surgery, and more particularly to systems and methods for phacoemulsification using vacuum-based aspiration pumps. In accordance with one embodiment, a vacuum-based phacoemulsification system, having a handpiece, includes a subsystem to detect an occlusion occurring at the handpiece during operation. | 02-19-2009 |
20090035164 | VOLUMETRIC FLUIDICS PUMP - A pump for moving a fluid through a fluidics system includes a surface and channel disposed along at least a portion of the surface. The pump also includes a driving mechanism having a rotatable shaft and a plurality of haptics operably coupled to the shaft. A closed portion is formed in the channel as the channel is compressed between the surface and at least one of the haptics, the closed portion having a thickness between the surface the haptic. The pump additionally has a circular path and a shaft path. The haptics are completely disposed inside the circular path and traversing the circular path during operation of the driving mechanism. The shaft path is traversed by shaft during operation of the driving mechanism, such at least one of the haptics is always in contact with the channel. The surface has a radius of curvature in the vicinity of the closed potion that is greater than the sum of a radius of the circular path and the thickness of the closed portion. | 02-05-2009 |
20090024136 | VISCOELASTIC APPLICATOR FOR IOL INSERTION APPARATUS - A system for preparing an intraocular lens (IOL) injector for receipt of an IOL. A manifold mates with an injector cartridge and easily distributes a lubricating agent to a load chamber of the cartridge. The IOL is then transferred into the load chamber. The cartridge may be rotatably coupled to the handpiece, and then converted from a preparation and load position to a delivery position. The manifold may remain external to the load chamber or fit within the load chamber and include a handle that remains outside. One or more internal channels in the manifold lead from one or more inlet ports to surfaces in the load chamber than contact the IOL. | 01-22-2009 |
20090012609 | MULTIFOCAL ACCOMMODATING INTRAOCULAR LENS - An intraocular lens for providing accommodative visions to a subject includes an adjustable optic and a haptic that is operably coupled to the optic. The adjustable optic comprises an optical axis, a central zone disposed about the optical axis, and an annular zone surrounding the central zone. The optic may also comprise additional annular zones disposed about the central zone and the first annular zone. The haptic comprises a transparent portion protruding into the adjustable optic. The intraocular lens has a disaccommodative configuration in which the central zone has a base optical power and an accommodative configuration in which the central zone has an add optical power that is at least about 1 Diopter greater than the base optical power, preferably at least about 2 Diopters greater than the base optical power. In some embodiments, the add optical power is at least 3 Diopters, or even 4 Diopters, greater than the base optical power. The central zone and the annular zone have different optical powers when the adjustable intraocular lens is in the accommodative configuration and/or when the adjustable intraocular lens is in the disaccommodative configuration. | 01-08-2009 |
20090005712 | SYSTEM AND METHOD FOR CONTROLLING A TRANSVERSE PHACOEMULSIFICATION SYSTEM WITH A FOOTPEDAL - A method and system for controlling an ultrasonically driven handpiece employable in an ocular surgical procedure is provided. The method includes operating the ultrasonically driven handpiece in a first tip displacement mode, such as a longitudinal mode according to a first set of operational parameters, and enabling a user to alter the ultrasonically driven handpiece to employ a second tip displacement mode, such as a transversal or torsional mode, using a second set of operational parameters. Enabling the user to alter performance of the handpiece comprises the user being enabled to dynamically select operational parameters for the first tip displacement mode relative to the second tip displacement mode by using, for example, a switching apparatus such as a footpedal. | 01-01-2009 |
20090002631 | SYSTEM AND METHOD FOR MEASURING CORNEAL TOPOGRAPHY - A system measures a corneal topography of an eye. The system includes a group of first light sources arranged around a central axis, the group being separated from the axis by a radial distance defining an aperture in the group; a plurality of second light sources; a detector array; and an optical system adapted to provide light from the second light sources through the aperture to a cornea of an eye, and to provide images of the first light sources and images of the second light sources from the cornea, through the aperture, to the detector array. The optical system includes an optical element having a focal length, f. The second light sources are disposed to be in an optical path approximately one focal length, f, away from the optical element. | 01-01-2009 |
20080316304 | DIGITAL VIDEO CAPTURE SYSTEM AND METHOD WITH CUSTOMIZABLE GRAPHICAL OVERLAY - A method and system for acquiring and transmitting video image data with parameter data superimposed thereon is provided. The design includes an input device configured to receive said video image data and separately receiving said parameter data, the input device configured to transmit the video image data and parameter data as separate data streams. The design further includes a computing device comprising a computer based utility configured to receive the separate data streams, store the separate data streams, edit at least one data stream, and generate combined video data. Combined video data represents combined video image data and parameter data. The design also includes a display device configured to present the combined video data. | 12-25-2008 |
20080312953 | DATABASE DESIGN FOR COLLECTION OF MEDICAL INSTRUMENT PARAMETERS - A method and system for maintaining medical items is provided. The system includes a medical database structure, a medical database utility configured to maintain medical database contents by organizing medical information into levels, and a user interface component configured to enable a user to access the medical database utility. The medical database utility provides a user with an ability to access the user's collections of settings in the medical database, the user's collection of settings maintained separately from settings accessible by other users. The method stores medical data items in a database configured with multiple levels of organization, establishes a logical relationship between medical data items at each level of organization, presents a user with available medical system choices at each level of organization, and enables the user to select from among the available medical system choices presented at each level of organization. | 12-18-2008 |
20080312675 | SYSTEM AND METHOD FOR CALCULATING LIMBAL RELAXING INCISIONS - A method and system for calculating ocular incision positions to address astigmatism in an eye. The present design includes providing biometric information, determining an incision location:and angle based on the biometric information and a nomogram such as a Donnenfeld nomogram, relating astigmatism conditions and incision conditions, and presenting the incision location and angle to a user, such as via a graphical user interface. The design is intended to be employed on a general purpose computer and the utility employed, an LRI (Limbal Relaxation Incision) calculator utility may be executed to compute the desired results based on a set of eye measurement inputs. | 12-18-2008 |
20080294087 | Systems and Methods for Transverse Phacoemulisification - The invention is generally directed to phacoemulsification systems and methods, and more particularly to systems and methods for providing transverse phacoemulsification. In accordance with one embodiment, a phacoemulsification system is provided having a handpiece with a needle, wherein the phacoemulsification system is configured to vibrate the distal end of the needle in both an effective transverse direction and an effective longitudinal direction when power, having a single effective operating frequency is applied to the handpiece. | 11-27-2008 |
20080288065 | GLARE REDUCING ROUGH SURFACES - An intraocular lens for insertion into a capsular bag in order to focus incoming light toward a retina and process for manufacturing thereof along with concomitant reduced glare and improved vision provides for a center lens portion of a lens for focusing incoming light toward the retina and the surrounding lens portion for mounting the lens within the capsular bag. A surface roughness disposed on the surrounding lens portion is provided for reducing the glare due to non-focused light directed toward the retina from the intraocular lens with the roughness having a roughness level of between about Ra 45 and about Ra 350. | 11-20-2008 |
20080287062 | EXCLUSIVE PAIRING TECHNIQUE FOR BLUETOOTH COMPLIANT DEVICES - A method and system of establishing communications between at least two independent software modules in a safety critical system, such as a medical system, is provided. The design comprises providing an exclusive Bluetooth connection between at least two wireless devices. A master wireless device is configured with Bluetooth master device functionality and a slave wireless device is configured with Bluetooth slave device functionality. The wireless devices are employed in performing procedures in a safety critical environment. The method further comprises acquiring a stored unique address from the slave wireless device over the Bluetooth connection, comparing the stored unique address to a master wireless device unique address available at the master wireless device, and exclusively pairing the master wireless device and the slave wireless device when the unique address acquired from the slave wireless device is found to identically match the master wireless device unique address. | 11-20-2008 |
20080285626 | EXCLUSIVE PAIRING TECHNIQUE FOR BLUETOOTH COMPLIANT MEDICAL DEVICES - A method and system of establishing communications between at least two independent software modules in a safety critical system, such as a medical system, is provided. The design comprises providing an exclusive Bluetooth connection between at least two wireless devices. A master wireless device is configured with Bluetooth master device functionality and a slave wireless device is configured with Bluetooth slave device functionality. The wireless devices are employed in performing a medical procedure. The method further comprises acquiring a stored unique address from the slave wireless device over the Bluetooth connection, comparing the stored unique address to a master wireless device unique address available at the master wireless device, and exclusively pairing the master wireless device and the slave wireless device when the unique address acquired from the slave wireless device is found to identically match the master wireless device unique address. | 11-20-2008 |
20080273171 | METHODS AND DEVICES FOR MEASURING TEAR FILM AND DIAGNOSING TEAR DISORDERS - Methods and devices measure eye blinks and tear film lipid and aqueous layer thickness before and following ophthalmic formula application onto the ocular surface, especially wherein the ophthalmic formula is an artificial tear. The methods and devices are suitable for dry eye diagnosis. The methods and devices are suitable for use to evaluate ophthalmic formula effects on the tear film and to use such information to diagnose ophthalmic formula treatment of ocular disease conditions such as dry eye in the absence of contact lens wear or post-surgical eye drop treatment and diagnosis. The methods and devices are also suitable for use in the optimization of ophthalmic drug dosage forms and sustained drug release. | 11-06-2008 |
20080269642 | ANGLE INDICATOR FOR CAPSULAR BAG SIZE MEASUREMENT - Implantation of an accommodating intraocular lens in an eye may require the accurate measurement of the size, circumference, or diameter of the capsular bag of the eye. After the natural crystalline lens has been surgically removed, a flexible ring may be temporarily or permanently inserted into the capsular bag for measuring the circumference of the capsular bag. The ring is generally compressible to fit through a surgical incision, then expands to fill the capsular bag along an equatorial region. The ring has a central component that changes shape as the ring is compressed. The shape change is generally correlated to the size of the capsular bag and may be measured visually or with a camera through the cornea, the measurement being generally independent of corneal magnification. | 10-30-2008 |
20080262194 | POLYQUATERNIUM-1 SYNTHESIS METHODS - The present embodiments relate to a novel method of making quaternary ammonium polymers comprising the steps of: a) mixing 1,4-bis-dimethylamino-2-butene, triethanolamine, water and an acid; and b) introducing a 1,4-dihalo-2-butene to the mixture so as to initiate a reaction resulting in the quaternary ammonium polymer. | 10-23-2008 |
20080256076 | EXTERNAL INTERFACE ACCESS CONTROL FOR MEDICAL SYSTEMS - A method and system of controlling access to a system in a medical environment is provided. The method includes calculating a signature value for at least one file usable with the medical system, transferring the calculated signature value to a signature file, and providing at least one signature value in the signature file and at least one associated file to a file system configured to be received by the medical system. At least one signature value and at least one associated file are inspected by the medical system to verify the associated file is a known medical software application asset. The medical system comprises an input/output data port configured to receive the external memory storage device, and an operating system capable of reading medical system data from and writing medical system data to the memory storage device. | 10-16-2008 |
20080256075 | EXTERNAL INTERFACE ACCESS CONTROL - A method and apparatus of controlling access to a system containing vital corporation software and storing confidential data assets situated in an open accessible environment is provided. The method includes calculating a signature value for at least one file usable with the system, transferring the calculated signature value to a signature file, and providing at least one signature value in the signature file and at least one associated file to a file system configured to be received by the system. At least one signature value and at least one associated file are inspected by the system to verify the associated file is a known system software application asset. The system comprises an input/output data port configured to receive the external memory storage device, and an operating system capable of reading system data from and writing system data to the memory storage device. | 10-16-2008 |