Patent application number | Description | Published |
20090125116 | HINGED JOINT SYSTEM - Methods, systems, and devices for replacement of a joint with a prosthetic system that replicates the natural kinematics of the joint is disclosed. A prosthetic system according to one embodiment includes a tibial component having a tibial plateau and a tibial stem portion, the tibial plateau having a top side and a bottom side, a tibial insert, with a bearing surface adapted to be positioned on the top side of the tibial plateau, a femoral component having a base portion and a central housing, the femoral component having an axis of extension-flexion rotation, the base portion having a pair of condyles, a mechanical linkage component linking the tibial component with the femoral component and with the tibial insert in between the tibial component and the femoral component, so that there is a center of contact between the condyles and the bearing surface, the mechanical linkage component adapted to allow the center of contact to move posteriorly during flexion, provide for the movement of the axis of extension-flexion rotation in the superior-inferior direction, and allow rotation of the tibial component, the bearing surface, and the femoral component about a superior-inferior axis in order to provide and control the natural kinematics of the knee joint. | 05-14-2009 |
20120245697 | PULSED CURRENT SINTERING FOR SURFACES OF MEDICAL IMPLANTS - A porous medical implant and a method of making same is described. The medical implant comprises a porous surface formed by application of pulsed electrical energy ins such a way as to cause a localized heating in the surface of the material comprising portions of the implant. The method comprises a pulsed current sintering technique. | 09-27-2012 |
Patent application number | Description | Published |
20080281429 | Applications of Diffusion Hardening Techniques - A device, for example a medical implant, and a method of making the same, the device having a metal or metal alloy substrate, for example CoCr, and a diffusion hardened metallic surface, for example a plasma carburized surface, contacting a non-diffusion hardened surface or a diffusion hardened surface having a diffusion hardening species different from that of the opposing surface. | 11-13-2008 |
20100286700 | PATIENT SPECIFIC ALIGNMENT GUIDE FOR A PROXIMAL FEMUR - An alignment guide for aligning instrumentation along a proximal femur includes a neck portion configured to wrap around a portion of the neck of the femur, a head underside portion configured to abut a disto-lateral portion of the femoral head and a medial head portion configured to overlie a medial portion of the head. Portions of the guide can have an inner surface generally a negative of the femoral bone of a specific patient that the guide overlies; such surfaces can be formed using data obtained from the specific patient. The neck portion can be configured to rotationally stabilize the guide by abutting and generating a first gripping force on the neck. The femoral head portions can be configured to grip the head portion of the femur and can support a bore guide that is configured to guide an instrument to the femur in a specified location and along a given axis. | 11-11-2010 |
20110190898 | CRUCIATE-RETAINING KNEE PROSTHESIS - Certain embodiments generally provide an improved tibial base member comprising keel portions that allow one or both cruciate ligaments to be preserved. Other embodiments provide improved lateral and/or medial inserts having a mesial lip that helps relieve and/or prevent impingement between the femoral component and the tibial eminence. Other embodiments provide improved femoral components having various chamfers to provide additional clearance with respect to the tibial eminence and posterior cruciate ligament without decreasing bone coverage. | 08-04-2011 |
20140324179 | ORTHOPEDIC INSERT SYSTEMS AND METHODS - Systems, devices, and methods are described for providing orthopedic knee inserts. The orthopedic knee inserts include a surface portion having a lip configured to couple with a mating member of a tibial component, where the lip has recesses that define non-continuous contact regions between the lip and the mating member of the tibial component. Alternatively, or additionally, in certain embodiments the mating member includes a shelf for mating with an insert, the mating member having a plurality of splines disposed along the shelf that form non-continuous contact regions between the mating member and the insert. | 10-30-2014 |
Patent application number | Description | Published |
20110092977 | LOW PROFILE PATIENT SPECIFIC CUTTING BLOCKS FOR A KNEE JOINT - A low profile patient specific cutting block for a knee comprises a plurality of bone interfacing portions and a cutting slot. The plurality of bone interfacing portions are configured to overlie portions of an end of a bone. The bone interfacing portions each have a surface generally a negative of the portion of the bone the bone interfacing portion overlies. The bone interfacing portions are angularly offset from each other such that a first of the bone interfacing portions overlies an anterior portion of the bone and a second of the bone interfacing portions overlies a portion of bone generally perpendicular to the anterior portion of hone. The cutting slot is oriented in a fixed position relative to the bone interfacing portions such that the cutting slot directs a cutting tool at a fixed angle and at a fixed depth from the bone interfacing portions. | 04-21-2011 |
20120116562 | Systems and methods Utilizing Patient-Matched Instruments - Patient-matched surgical instruments, and methods for making patient-matched surgical instruments, may include patient-matched surgical instruments having an anatomy facing side with several discrete, physically separate anatomy contacting portions configured to match the anatomy of a particular patient. The anatomy contacting portions may be one or more of non-uniform in distribution, non-uniform in shape or non-uniform in surface area. | 05-10-2012 |
20120123422 | Patient-Matched Instruments - Patient-matched surgical instruments, and methods for making patient-matched surgical instruments, may include patient-matched surgical instruments having an anatomy facing side with several discrete, physically separate anatomy contacting portions configured to match the anatomy of a particular patient. The anatomy contacting portions may be one or more of non-uniform in distribution, non-uniform in shape or non-uniform in surface area. | 05-17-2012 |
20130325135 | HINGED JOINT SYSTEM - Methods, systems, and devices for replacement of a joint with a prosthetic system that replicates the natural kinematics of the joint is disclosed. A prosthetic system according to one embodiment includes a tibial component having a tibial plateau and a tibial stem portion, the tibial plateau having a top side and a bottom side, a tibial insert, with a bearing surface, adapted to be positioned on the top side of the tibial plateau, a femoral component having a base portion and a central housing, the femoral component having an axis of extension-flexion rotation, the base portion having a pair of condyles, a mechanical linkage component linking the tibial component with the femoral component and with the tibial insert in between the tibial component and the femoral component, so that there is a center of contact between the condyles and the bearing surface, the mechanical linkage component adapted to allow the center of contact to move posteriorly during flexion, provide for the movement of the axis of extension-flexion rotation in the superior-inferior direction, and allow rotation of the tibial component, the bearing surface, and the femoral component about a superior-inferior axis in order to provide and control the natural kinematics of the knee joint. | 12-05-2013 |
20140094814 | PATIENT-MATCHED INSTRUMENTS - Patient-matched surgical instruments, and methods for making patient-matched surgical instruments, may include patient-matched surgical instruments having an anatomy facing side with several discrete, physically separate anatomy contacting portions configured to match the anatomy of a particular patient. The anatomy contacting portions may be one or more of non-uniform in distribution, non-uniform in shape or non-uniform in surface area. | 04-03-2014 |
20150088265 | CRUCIATE-RETAINING KNEE PROSTHESIS - Certain embodiments generally provide an improved tibial base member comprising keel portions that allow one or both cruciate ligaments to be preserved. Other embodiments provide improved lateral and/or medial inserts having a mesial lip that helps relieve and/or prevent impingement between the femoral component and the tibial eminence. Other embodiments provide improved femoral components having various chamfers to provide additional clearance with respect to the tibial eminence and posterior cruciate ligament without decreasing bone coverage. | 03-26-2015 |
Patent application number | Description | Published |
20090048587 | System And Method For A User Interface - Embodiments of systems and methods for an interface for providing a user with feedback are presented. Specifically, embodiments of such an interface may include a head-up display unit which is mounted on a microscope utilized by a user when performing a surgical procedure. The heads-up display unit may include an eye-piece ring which is fitted onto or in one of the eye pieces of the microscope. The heads-up unit receives data regarding one or more parameters from a surgical console or other source and produces audio or visual feedback corresponding to a desired parameter. Any visual feedback produced may then be propagated to the eye piece ring allowing a user of the microscope to obtain the feedback when performing a surgical procedure utilizing the microscope and obviating the need to look at a screen of the surgical console to obtain such feedback. Thus, feedback is provided to a user in a non-intrusive manner such that the user can obtain this feedback without distracting from a surgical procedure. | 02-19-2009 |
20100004586 | Ultrasound Handpiece - A handpiece having at least one set of piezoelectric elements polarized to produce longitudinal motion when excited at the relevant resonant frequency. The piezoelectric crystals are connected to an ultrasonic horn to which a cutting tip is attached. The horn and/or the cutting tip contains a plurality of diagonal slits or grooves. The slits or grooves produce optimized torsional movement in the cutting tip when the piezoelectric crystals are excited at a second resonant frequency. | 01-07-2010 |
20100121364 | Method of Controlling A Surgical System Based On A Load On The Cutting Tip Of A Handpiece - A surgical system that is able to sense the onset of an occlusion or other surgical event as well as the instant an occlusion breaks. To help avoid overheating of the tip, the system determines an approximate temperature of the eye using an irrigation flow rate and reduces the power to the handpiece automatically if an overheating situation is predicted. Alternatively or in addition, the system monitors the power drawn by the handpiece, which is indicative of the cutting load on the tip, and automatically adjusts the power to the tip to compensate for increased loads on the tip. | 05-13-2010 |
20100268388 | Method of Controlling A Surgical System Based on Irrigation Flow - A surgical system that is able to sense the onset of an occlusion or other surgical event as well as the instant an occlusion breaks. To help avoid overheating of the tip, the system determines a temperature of an eye using irrigation flow rate and reduces the power to the handpiece automatically if an overheating situation is predicted. Alternatively or in addition, the system monitors the power drawn by the handpiece, which is indicative of the cutting load on the tip, and automatically adjusts the power or stroke of the tip to compensate for increased loads on the tip. | 10-21-2010 |
20110137232 | Thermal Management Algorithm For Phacoemulsification System - A control system for managing power supplied to a phacoemulsification hand piece includes a power source that provides power to the hand piece and a controller that controls the power source. The controller calculates a thermal value based on irrigation fluid flow and a power level and decreases the power level in proportion to the calculated thermal value when the calculated thermal value exceeds a threshold thermal value. Irrigation fluid flow can be calculated from irrigation fluid pressure. | 06-09-2011 |
20120302941 | PHACOEMULSIFICATION SYSTEMS AND ASSOCIATED USER-INTERFACES AND METHODS - Phacoemulsification systems and associated user interfaces and methods for use in ophthalmic surgery are disclosed. In some embodiments, a touch screen display of an ophthalmic surgical console provides a graphical user interface that allows a user to both visualize and control various operating parameters of the surgical console and associated subsystems. The controllable operating parameters include, without limitation, aspiration flow rates, IV pole height, vacuum limit pressures, minimum ultrasound power, maximum ultrasound power, on-time, off-time, and/or other values associated with the operating parameters of the ophthalmic surgical console. | 11-29-2012 |
20130012868 | Vacuum Level Control of Power For Phacoemulsification Hand Piece - The present invention comprises a method of operating an ophthalmic surgical hand piece, providing a series of power pulses to the hand piece, each of the series of power pulses having a first portion that produces torsional movement of a cutting tip and a second portion that produces longitudinal movement of the cutting tip; measuring vacuum pressure; altering the duration of the first portion as vacuum pressure increases; and altering the duration of the second portion as vacuum pressure increases. | 01-10-2013 |
20130211435 | Method of Controlling a Surgical System Based on a Load on the Cutting Tip of a Handpiece - A surgical system that is able to sense the onset of an occlusion or other surgical event as well as the instant an occlusion breaks. To help avoid overheating of the tip, the system determines an approximate temperature of the eye using an irrigation flow rate and reduces the power to the handpiece automatically if an overheating situation is predicted. Alternatively or in addition, the system monitors the power drawn by the handpiece, which is indicative of the cutting load on the tip, and automatically adjusts the power to the tip to compensate for increased loads on the tip. | 08-15-2013 |
Patent application number | Description | Published |
20130191357 | MANAGING MULTIPLE VERSIONS OF ENTERPRISE META-MODELS USING SEMANTIC BASED INDEXING - A method, system and program product of managing multiple versions of enterprise meta-models within an enterprise model using semantic based indexing. The steps include: receiving a query; determining from the query a topic and at least two versions of a topic map meta-model of the enterprise meta-models to compare; applying the query to a merged topic map meta-model of the at least two versions of the topic map meta-model by searching a topic map based index of the merged topic map meta-model for the topic, producing a result; and using the result to translate the topic from the query in at least one of the at least two versions of the topic map meta-model to coexist and correspond to the other version of the topic map meta-model, allowing data between the at least two versions topic map meta-model of the enterprise meta-models within the enterprise model to be correlated. | 07-25-2013 |
20140207757 | Using Metaphors to Present Concepts Across Different Intellectual Domains - A method, system, and computer program product for generating content of a topic for an intended audience are described. Topic information regarding a topic to be presented to an intended audience is obtained, as well as knowledge information regarding the intended audience. One or more metaphors relating to the topic and understood by the intended audience can be determined based at least in part on the topic information and the knowledge information. Content can be generated for the topic information based on a comparative analysis of the topic information to at least one of the one or more metaphors. | 07-24-2014 |
20140207819 | USING METAPHORS TO PRESENT CONCEPTS ACROSS DIFFERENT INTELLECTUAL DOMAINS - A method, system, and computer program product for generating content of a topic for an intended audience are described. Topic information regarding a topic to be presented to an intended audience is obtained, as well as knowledge information regarding the intended audience. One or more metaphors relating to the topic and understood by the intended audience can be determined based at least in part on the topic information and the knowledge information. Content can be generated for the topic information based on a comparative analysis of the topic information to at least one of the one or more metaphors. | 07-24-2014 |
Patent application number | Description | Published |
20120289941 | SELF-CLEANING SURGICAL SUCTION DEVICE - A suction device is disclosed that includes a suction tube having a first longitudinal axis, and proximal and distal openings; a guide tube that is substantially coextensive with and parallel to the suction tube, and has a second longitudinal axis, and proximal and distal openings; a stylet having proximal and distal ends; and a junction conduit having proximal and distal openings; wherein the stylet is disposed along the second longitudinal axis and encircled by the guide tube, and the proximal opening of the junction conduit contacts the distal opening of the suction tube and the distal opening of the guide tube such that the distal opening of the junction conduit is in fluid communication with the suction tube, and urging the stylet through the guide tube translates the stylet to the distal opening of the junction conduit. | 11-15-2012 |
20130245613 | SELF-CLEANING SURGICAL SUCTION DEVICE WITH INTERCHANGEABLE TIPS - A surgical suction device is disclosed that includes a suction tube having a first longitudinal axis, a proximal opening, and a distal opening; a guide tube that is substantially coextensive with and parallel to the suction tube, and has a second longitudinal axis, a proximal opening, and a distal opening; a stylet having a proximal end and a distal end; and a junction conduit having a proximal opening and a distal opening; wherein the stylet is disposed along the second longitudinal axis and encircled by the guide tube, and the proximal opening of the junction conduit is in contact with the distal opening of the suction tube and the distal opening of the guide tube such that the distal opening of the junction conduit is in fluid communication with the suction tube, and urging the stylet through the guide tube along the second longitudinal axis through the junction conduit translates the distal end of the stylet to the distal opening of the junction conduit. | 09-19-2013 |
20140180291 | SURGICAL RASP - In one example, the present invention relates to a surgical instrument for removing tissue from a body, which instrument includes an elongated shaft distally attached to a cutting element, wherein the elongated shaft and the cutting element are fixedly connected by an arcuate element such that the longitudinal axes of the elongated shaft and the cutting element intersect at an angle between about 90° and about 170° and the cutting element comprises a convex non-cutting base that contacts tissue when moving distally. The present invention also relates to a method of using said instrument. | 06-26-2014 |