Patent application number | Description | Published |
20090138021 | INSTRUMENT ASSEMBLY FOR USE IN KNEE JOINT REPLACEMENT SURGERY - An instrument assembly for use in knee joint replacement surgery is provided including a base instrument having a tibial plate, a femoral plate, a tibial arm having a plate end and a control end, a femoral arm having a plate end and a control end, wherein the femoral plate is rotatably fastened to the plate end of the femoral arm. The assembly also includes a distractor mechanism configured to act between the tibial arm and the femoral arm at a point between their respective plate ends and control ends by which the distance between the plate ends of the arms can be adjusted and an ancillary instrument mountable on the base instrument and configured such that the position of the ancillary instrument relative to the tibial plate is fixed during subsequent steps in the knee replacement procedure, while the knee joint is distracted as a result of forces applied across the joint between the tibial plate and the femoral plate. | 05-28-2009 |
20090222008 | REAMER AND METHOD OF REAMING - A collapsable reamer assembly and method of reaming a cavity into a bone are described. The reamer assembly comprises a base having a housing and an underside presented toward a surface of the bone in use. A collapsable reamer is rotatably mounted in the housing for rotation about a reaming axis directed away from the underside of the base. The collapsable reamer comprises at least one reaming component, supported for movement along the reaming axis from a collapsed state of the reamer to an extended state of the reamer to ream at least partially along the axis into the bone. | 09-03-2009 |
20090270869 | DISTRACTOR INSTRUMENT - A distractor instrument for use in knee joint surgery is provided that includes a tibial plate, a femoral plate, a tibial arm having a plate end and a control end, wherein the tibial plate is fastened to the plate end of the tibial arm at its anterior edge, and wherein, when the tibial plate is engaged with the tibia, the tibial arm is configured to extend from the tibial plate generally medially or laterally of the knee joint. The distractor instrument also includes a femoral arm having a plate end and a control end, wherein the femoral plate is fastened to the plate end of the femoral arm, and wherein, when the femoral plate is engaged with the femur, the femoral arm extends from the femoral plate generally aligned with the tibial arm. The tibial arm and the femoral arm are pivotably connected to one another at a point between their respective plate and control ends so that pivotal movement of the femoral arm relative to the tibial arm reduces the distance between their control ends and causes the distance between the tibial plate end and the femoral plate end to increase. | 10-29-2009 |
20130325045 | SURGICAL CUTTING GUIDE - A surgical cutting guide is described which can guide a cutting implement to cut in a pair of planes at a defined relative orientation. The cutting guide comprises a first plate defining a first cutting plane, a second plate defining a second cutting plane at an angle to the first cutting plane; and a base member to which both the first plate and the second plate are attached. The first and second cutting planes intersect each other at a line of intersection and both the first plate and the second plate extend beyond the line of intersection. | 12-05-2013 |
Patent application number | Description | Published |
20130006370 | TRIALING SYSTEM FOR A KNEE PROSTHESIS AND METHOD OF USE - An orthopaedic surgical instrument system that includes an orthopaedic surgical instrument adapted to be positioned on a proximal end of a patient's tibia, and a tibial bearing trial assembly configured to be coupled to the orthopaedic surgical instrument. The tibial bearing trial assembly includes a plurality of tibial bearing surface trial components and at least one shim. | 01-03-2013 |
20130006371 | SYSTEM AND METHOD OF TRIALING A KNEE PROSTHESIS - A method of trialing prosthetic components of a knee prosthesis including positioning a femoral trial component on a surgically-prepared distal end of a patient's femur, assembling a tibial bearing trial component, and positioning the tibial bearing trial component on a tibial base trial component seated on a surgically-prepared proximal end of a patient's tibia. The method may also include adjusting the patient's leg with the tibial bearing trial component engaging the femoral trial component, and readjusting the patient's leg with the tibial bearing trial component engaging the femoral trial component after positioning the tibial bearing trial component on the tibial base trial component and a keel punch. | 01-03-2013 |
20130006376 | METHOD OF USING A TRIALING SYSTEM FOR A KNEE PROSTHESIS - A method of assembling a surgical instrument includes selecting a tibial bearing surface trial component, orienting a shim relative to the tibial bearing surface trial component, and securing the shim to the tibial bearing surface trial component. | 01-03-2013 |
20130261502 | ORTHOPAEDIC SENSOR MODULE AND SYSTEM FOR DETERMINING JOINT FORCES OF A PATIENT'S KNEE JOINT - An orthopaedic surgical device for determining the joint force of a patient's knee joint includes a tibial paddle shaped to be positioned in the patient's knee joint and a handle extending from the tibial paddle. The tibial paddle includes a sensor array positioned therein and configured to generate sensor signals indicative of the joint force of the patient's knee joint. The orthopaedic surgical device also includes a control circuit configured to control a display located on the handle to provide a visual indication of the medial and lateral balance of the joint force. In some embodiments, various tibial trialing components may be coupled to the tibial paddle along with an associated adaptor. | 10-03-2013 |
20130261505 | ORTHOPAEDIC SURGICAL SYSTEM FOR DETERMINING JOINT FORCES OF A PATIENT'S KNEE JOINT - An orthopaedic surgical system includes a sensor module for determining the joint force of a patient's knee joint and an adaptor for coupling various tibial trialing components to the sensor module. The sensor module includes a tibial paddle to which the adaptor is configured to couple. The adaptor and tibial paddle include structures that control the orientation at which the adaptor is attachable to the tibial paddle. Some tibial trialing components may be positioned over the adaptor in a mobile orientation that facilities rotation of the tibial trialing component relative to the tibial paddle or a fixed orientation that restricts the rotation of the tibial trialing component. | 10-03-2013 |
20140018707 | DEVICE AND METHOD FOR DETERMINING FORCE OF A KNEE JOINT - An orthopaedic surgical device for determining the joint force of a patient's knee joint includes a tibial paddle shaped to be positioned in the patient's knee joint and a handle extending from the tibial paddle. The tibial paddle includes a sensor array positioned therein and configured to generate sensor signals indicative of the joint force of the patient's knee joint. The orthopaedic surgical device also includes a control circuit configured to control a display located on the handle to provide a visual indication of the medial and lateral balance of the joint force. | 01-16-2014 |
20140094813 | METHOD FOR SURGICALLY IMPLANTING A PROSTHETIC PATELLA COMPONENT - An orthopaedic surgical instrument includes a patella trial and drill guide that may be used to both perform a surgical trial of the patellofemoral joint and guide the surgeon in drilling a number of anchor holes in the patella of the patient. | 04-03-2014 |
20140094819 | ORTHOPAEDIC SURGICAL INSTRUMENT ASSEMBLY FOR IMPLANTING A PROSTHETIC PATELLA COMPONENT - An orthopaedic surgical instrument includes a patella trial and drill guide that may be used to both perform a surgical trial of the patellofemoral joint and guide the surgeon in drilling a number of anchor holes in the patella of the patient. | 04-03-2014 |
20140094820 | PATELLA DRILL GUIDE AND TRIAL SURGICAL INSTRUMENT - An orthopaedic surgical instrument includes a patella trial and drill guide that may be used to both perform a surgical trial of the patellofemoral joint and guide the surgeon in drilling a number of anchor holes in the patella of the patient. | 04-03-2014 |
20140222007 | METHOD FOR PERFORMING AN ORTHOPAEDIC SURGICAL PROCEDURE - A method for performing an orthopaedic surgical procedure on a knee joint of a patient includes resecting a proximal end of a patient's tibia to create a resected surface of the patient's tibia and positioning a tibial paddle of a sensor module on the proximal end of the patient's tibia. The tibial paddle includes a sensor array generating sensor signals indicative of the joint force of the patient's knee joint. The method also includes performing a number of orthopaedic surgical steps while monitoring a display of the sensor module that provides a visual indication of the medial-lateral balance of the joint force of the patient's knee joint. | 08-07-2014 |
20140257305 | POLYMER 4-IN-1 FEMORAL CUTTING BLOCK - An orthopaedic surgical instrument including a polymer 4-in-1 femoral cutting block having a chamfer cutting slot defined therein, and a chamfer cutting guide assembly secured within the chamfer cutting slot. The chamfer cutting guide assembly includes a first planar surface, a second planar surface spaced apart from, and extending parallel to, the first planar surface, a third planar surface connected to the second planar surface and extending at an angle relative to the first planar surface and a fourth planar surface connected to the first planar surface and extending parallel to the third planar surface. The first planar surface and the second planar surface define a first metallic planar cutting guide, and the third planar surface and the fourth planar surface define a second metallic planar cutting guide. The chamfer cutting guide assembly may include a pair of metallic bushings. | 09-11-2014 |
20140257306 | POLYMER 4-IN-1 FEMORAL CUTTING BLOCK INCLUDING METALLIC PROTECTIVE BUSHINGS - An orthopaedic surgical instrument includes a polymer 4-in-1 cutting block having a number of metallic cutting guides secured thereto. A pair of metallic bushings function as saw stops at the medial and lateral ends of the chamfer cutting slot. | 09-11-2014 |
Patent application number | Description | Published |
20100131021 | LOCATING A BONE AXIS - A technique for locating an axis of a bone, which extends through the centre of rotation of the bone around a joint between that bone and another bone, involves a. moving the bone in a plane about the said joint, between a first point and a second point, b. locating a third point which is equidistant from the first and second points, and c. locating the axis which passes through the third point, perpendicular to a line which connects the first and second points. The invention provides an instrument for performing this technique. | 05-27-2010 |
20100249658 | DEVICE AND METHOD FOR DETERMINING FORCE OF A KNEE JOINT - An orthopaedic surgical device for determining the joint force of a patient's knee joint includes a tibial paddle shaped to be positioned in the patient's knee joint and a handle extending from the tibial paddle. The tibial paddle includes a sensor array positioned therein and configured to generate sensor signals indicative of the joint force of the patient's knee joint. The orthopaedic surgical device also includes a control circuit configured to control a display located on the handle to provide a visual indication of the medial and lateral balance of the joint force. | 09-30-2010 |
20100249659 | DEVICE AND METHOD FOR DISPLAYING JOINT FORCE DATA - A hand-held display module includes a housing, a display coupled to the housing, and a circuit positioned in the housing and coupled to the display. The circuit includes a receiver circuit configured to communicate with a sensor module positioned in a knee joint of a patient to receive joint force data indicative of the joint force of the patient's knee joint. In one mode, the circuit is configured to display a visual indication of the medial-lateral balance of the joint force based on the joint force data. In a second mode, the circuit is configured to display a visual indication of the medial-lateral and the anterior-posterior balance of the joint force. | 09-30-2010 |
20100249660 | SYSTEM AND METHOD FOR DISPLAYING JOINT FORCE DATA - A computer assisted orthopaedic system includes a sensor module, a display, and a computer coupled to the display. The sensor module is configured to be positioned in a knee joint of a patient and transmit joint force data indicative of a joint force of the patient's knee joint. The computer includes a receiver circuit to receive the joint force data. The computer is configured to determine position data indicative of a position of a patient's femur and a patient's tibia and display an image of the patient's femur and the patient's tibia based on the position data. The computer is also configured to determine a medial force value and a lateral force value based on the joint force data and display the medial and lateral force values on the display. | 09-30-2010 |
20100249777 | DEVICE AND METHOD FOR DETERMINING FORCES OF A PATIENT'S JOINT - An orthopaedic surgical device for determining the joint force of a patient's joint includes a sensor housing and a handle. The sensor housing is shaped to be positioned in a patient's joint and includes a sensor array positioned therein and configured to generate sensor signals indicative of the joint force of the patient's joint. The handle includes a circuit positioned therein and configured to control a display located on the handle to provide a visual indication of the joint force of the patient's joint. The handle may be physically secured to the sensor housing or may be coupled thereto via a wire to facilitate communications between the sensor array and the circuit. | 09-30-2010 |
20100249789 | METHOD FOR PERFORMING AN ORTHOPAEDIC SURGICAL PROCEDURE - A method for performing an orthopaedic surgical procedure on a knee joint of a patient includes resecting a proximal end of a patient's tibia to create a resected surface of the patient's tibia and positioning a tibial paddle of a sensor module on the proximal end of the patient's tibia. The tibial paddle includes a sensor array generating sensor signals indicative of the joint force of the patient's knee joint. The method also includes performing a number of orthopaedic surgical steps while monitoring a display of the sensor module that provides a visual indication of the medial-lateral balance of the joint force of the patient's knee joint. | 09-30-2010 |