Patent application number | Description | Published |
20090082873 | FIXED-BEARING KNEE PROSTHESIS - A fixed-bearing prosthesis includes a femoral component having a medial condyle surface and a lateral condyle surface. The knee prosthesis also includes a bearing having a medial bearing surface configured to articulate with the medial condyle surface of the femoral component, and a lateral bearing surface configured to articulate with the lateral condyle surface of the femoral component. A tibial tray is secured to the bearing. The tibial tray has a platform with an elongated stem extending downwardly from a lower surface thereof. A peripheral rail extends along at least an anterior section of the perimeter of the tray's platform. The peripheral rail extends upwardly from an upper surface of the platform. A retaining rail extends upwardly from the upper surface of the platform and posteriorly away from the peripheral rail. | 03-26-2009 |
20090088859 | FIXED-BEARING KNEE PROSTHESIS HAVING INTERCHANGEABLE COMPONENTS - A fixed-bearing prosthesis includes a femoral component having a medial condyle surface and a lateral condyle surface. The knee prosthesis also includes a bearing having a medial bearing surface configured to articulate with the medial condyle surface of the femoral component, and a lateral bearing surface configured to articulate with the lateral condyle surface of the femoral component. A tibial tray is secured to the bearing. The tibial tray has a platform with an elongated stem extending downwardly from a lower surface thereof. A posterior buttress extends along a posterior section of the perimeter of the tray's platform, and an anterior buttress extends along an anterior section of the perimeter of the tray's platform. Differently-sized tibial trays are interchangeable with differently-sized bearings. | 04-02-2009 |
20100063594 | FIXED-BEARING KNEE PROSTHESIS HAVING INTERCHANGEABLE COMPONENTS - A fixed-bearing prosthesis includes a femoral component having a medial condyle surface and a lateral condyle surface. The knee prosthesis also includes a bearing having a medial bearing surface configured to articulate with the medial condyle surface of the femoral component, and a lateral bearing surface configured to articulate with the lateral condyle surface of the femoral component. A tibial tray is secured to the bearing. The tibial tray has a platform with an elongated stem extending downwardly from a lower surface thereof. A posterior buttress extends along a posterior section of the perimeter of the tray's platform, and an anterior buttress extends along an anterior section of the perimeter of the tray's platform. Differently-sized tibial trays are interchangeable with differently-sized bearings. | 03-11-2010 |
20100222890 | MOBILE/FIXED PROSTHETIC KNEE SYSTEMS - A prosthetic knee system includes a tibial tray, a non-rotating tibial insert, and a rotating tibial insert. The non-rotating tibial insert and the rotating tibial insert are selectively coupleable to the tibial tray such that a fixed or a mobile orthopaedic prosthesis may be configured. In some embodiments, the tibial tray may be a fixed or mobile tibial tray. Additionally, in some embodiments, the prosthetic knee system may include a femoral component. | 09-02-2010 |
20100222891 | MODULAR IMPLANT SYSTEM WITH FULLY POROUS COATED SLEEVE - A modular knee implant system allows a surgeon to select between several different styles of distal femoral implant components and several different styles of stem extensions while also allowing for use of a metaphyseal component. The metaphyseal component can be a universal one that is usable with all of the styles of distal femoral implant components through use of an adapter. A second adapter allows for use of stem extensions with different types of connectors with the metaphyseal component. A separate metaphyseal component could also be provided with a distal Morse taper post to mate with a distal femoral component having a proximal Morse taper bore. The metaphyseal component may have an outer surface that is configured to maximize contact area with the patient's bone, and may have a surface finish over a substantial part of its overall length that is conducive to bone ingrowth. | 09-02-2010 |
20110178605 | KNEE PROSTHESIS SYSTEM - A knee prosthesis system for total knee replacement procedures includes a plurality of distinctly-sized femoral components, a plurality of distinctly-sized fixed tibial components, a plurality of distinctly-sized mobile tibial components, a plurality of fixed inserts, and a plurality of mobile inserts. Each of the mobile inserts is sized and shaped such that each may be optimally matched to one of the femoral components and may be used with any one of the mobile tibial components. Each of the fixed inserts is sized and shaped such that each may be optimally matched to one of the femoral components and may be used with any one of the fixed tibial components. | 07-21-2011 |
20110178606 | TIBIAL COMPONENTS FOR A KNEE PROSTHESIS SYSTEM - A knee prosthesis system for total knee replacement of a patient has a plurality of distinctly-sized fixed tibial components, each of which has a fixed platform defining a first, bone covering profile and a plurality of distinctly-sized mobile tibial components, each of which has a mobile platform defining a second, bone covering profile. The first and second, bone covering profiles are approximately the same for any one of the plurality of distinctly-sized fixed tibial components and a correspondingly-sized one of the plurality of distinctly-sized mobile tibial components. | 07-21-2011 |
20130079885 | FIXED-BEARING KNEE PROSTHESIS HAVING A LOCKING MECHANISM WITH A CONCAVE-TO-CONVEX MATING INTERFACE - A fixed-bearing prosthesis includes a femoral component having a medial condyle surface and a lateral condyle surface. The knee prosthesis also includes a bearing having a medial bearing surface configured to articulate with the medial condyle surface of the femoral component, and a lateral bearing surface configured to articulate with the lateral condyle surface of the femoral component. A tibial tray is secured to the bearing. The tibial tray has a platform with an elongated stem extending downwardly from a lower surface thereof. A posterior buttress extends along a posterior section of the perimeter of the tray's platform, and an anterior buttress extends along an anterior section of the perimeter of the tray's platform. Differently-sized tibial trays are interchangeable with differently-sized bearings. | 03-28-2013 |
20130184829 | FIXED-BEARING KNEE PROSTHESIS HAVING INTERCHANGEABLE COMPONENTS - A fixed-bearing prosthesis includes a femoral component having a medial condyle surface and a lateral condyle surface. The knee prosthesis also includes a bearing having a medial bearing surface configured to articulate with the medial condyle surface of the femoral component, and a lateral bearing surface configured to articulate with the lateral condyle surface of the femoral component. A tibial tray is secured to the bearing. The tibial tray has a platform with an elongated stem extending downwardly from a lower surface thereof. A posterior buttress extends along a posterior section of the perimeter of the tray's platform, and an anterior buttress extends along an anterior section of the perimeter of the tray's platform. Differently-sized tibial trays are interchangeable with differently-sized bearings. | 07-18-2013 |
20130184830 | FIXED-BEARING KNEE PROSTHESIS HAVING INTERCHANGEABLE COMPONENTS - A fixed-bearing prosthesis includes a femoral component having a medial condyle surface and a lateral condyle surface. The knee prosthesis also includes a bearing having a medial bearing surface configured to articulate with the medial condyle surface of the femoral component, and a lateral bearing surface configured to articulate with the lateral condyle surface of the femoral component. A tibial tray is secured to the bearing. The tibial tray has a platform with an elongated stem extending downwardly from a lower surface thereof. A posterior buttress extends along a posterior section of the perimeter of the tray's platform, and an anterior buttress extends along an anterior section of the perimeter of the tray's platform. Differently-sized tibial trays are interchangeable with differently-sized bearings. | 07-18-2013 |
20140081408 | FEMORAL KNEE PROSTHESIS SYSTEM WITH AUGMENTS AND MULTIPLE LENGTHS OF SLEEVES SHARING A COMMON GEOMETRY - A modular knee prosthesis system includes a femoral component having a stem, a plurality of different sizes of sleeves mountable on the stem, and a plurality of different sizes of augments mountable on the femoral component. The system is modular, and provides the surgeon with the option of distally offsetting the joint line by selecting the size of sleeve that will provide the desired joint line. The different sizes of sleeves have different axial lengths but share a common geometry along a substantial part of their lengths so that the same bone cavity will accept multiple sizes of sleeves. | 03-20-2014 |
20140081410 | MODULAR KNEE PROSTHESIS SYSTEM WITH MULTIPLE LENGTHS OF SLEEVES SHARING A COMMON GEOMETRY - A modular knee prosthesis system includes a femoral component having a stem and a plurality of different sizes of sleeves mountable on the stem. The system is modular, and provides the surgeon with the option of distally offsetting the joint line by selecting the size of sleeve that will provide the desired joint line. The different sizes of sleeves have different axial lengths but share a common geometry along a substantial part of their lengths so that the same bone cavity will accept multiple sizes of sleeves. | 03-20-2014 |
20140081411 | SURGICAL INSTRUMENT SYSTEM WITH MULTIPLE LENGTHS OF BROACHES SHARING A COMMON GEOMETRY - An orthopaedic surgical instrument system includes a first broach including a first end configured to be separately secured to a handle and a tapered body having a plurality of cutting teeth defined therein, and a second broach including a first end configured to be separately secured to the handle in place of the first broach, a first tapered body extending distally from a second end positioned opposite the first end, and a second tapered body extending distally from the first tapered body. The tapered body of the first broach and the first tapered body of the second broach have a first outer geometry and the second tapered body has a second outer geometry different from the first outer geometry. | 03-20-2014 |