DEPUY INTERNATIONAL LTD Patent applications |
Patent application number | Title | Published |
20130310944 | KNEE JOINT PROSTHESIS - A knee joint prosthesis which comprises a tibial component ( | 11-21-2013 |
20130096627 | SYSTEM AND METHOD FOR COOLING A SPINAL CORRECTION DEVICE COMPRISING A SHAPE MEMORY MATERIAL FOR CORRECTIVE SPINAL SURGERY - A device and method of correcting a spinal defect in a patient employs the use of shape memory material in a spinal correction device. The shape memory material may be transitioned between a flexible martensitic state to allow shaping of the spinal correction device and a rigid austenitic state to apply corrective forces to the spine. The shape memory material may be transitioned to the flexible martensitic by applying a coolant, such as cold gas, directly or indirectly to the shape memory material to transfer heat away from the material. The cooling device and method may allow for in-vivo shaping of the spinal correction device while inserted in the body and attached to bone anchors by cooling the spinal correction device after insertion. | 04-18-2013 |
20120316569 | INSTRUMENT FOR POSITIONING A CUP COMPONENT OF AN ORTHOPAEDIC JOINT PROSTHESIS - An instrument for positioning a cup component of an orthopaedic joint prosthesis includes a shaft, a housing attached to the distal end of the shaft, at least two flange portions carried on the shaft on which the cup component can be fixed, and a unitary spring element disposed about the shaft axis and disposed between the at least two flange portions and the axis of the shaft. The housing includes a base plate and extends from the shaft transversely relative to the shaft axis. The at least two flange portions can move relative to the base plate in a direction transverse to the shaft axis between an in-use position, where at least a portion of each of the at least two flange portions contacts the inner surface of the cup component, and a retracted position where the at least a portion of each of the at least two flange portions is moved towards the shaft axis so as to allow the cup component to be released from the instrument. The spring element biases each of the at least two flange portions towards the in-use position. | 12-13-2012 |
20120035612 | ORIENTATION GUIDE - An orientation guide comprising a housing arranged to couple to a surgical instrument. In one embodiment the orientation guide further comprises first and second indicators ( | 02-09-2012 |
20110319901 | SURGICAL JIG - A surgical jig for determining an axis extending into the end of a bone ( | 12-29-2011 |
20110245835 | Surgical Instrument - Patient specific surgical instruments, and in particular cutting guides, and methods of use and manufacture are described. The surgical instrument can be used in an orthopaedic arthroplasty procedure to be carried out on a joint of a patient and can allowing soft tissue balancing for the joint. The instrument comprises a body having an attachment area configured using data specific to a bone of the joint of the patient so as to attach to the bone in a unique position. The instrument includes at least a first cutting guide and an adjustment mechanism operable to change the position of the cutting guide relative to the bone. | 10-06-2011 |
20110186456 | CONTAINER AND SYSTEM OF CONTAINERS OF SURGICAL INSTRUMENTS FOR KNEE SURGERY - A system of surgical instruments for use with at least a first implant and a second implant of the same type but different sizes is provided. The system includes a first container containing at least a first surgical instrument of a first type that is size specific and a second surgical instrument of a second type that is size specific; a second container containing at least a third surgical instrument of the first type and a fourth surgical instrument of the second type, wherein both the third and fourth instruments are of a second size that is different from the first size and that corresponds to the second implant; and a third container containing at least a fifth surgical instrument of a third type that is size independent. | 08-04-2011 |
20110130760 | INSTRUMENT FOR FORMING A CAVITY WITHIN A BONE - An instrument for forming a cavity within a bone. The instrument comprises a shaft, a blade pivotally mounted on the shaft towards a first end of the shaft and a push rod extending within the shaft and coupled to the blade, the push rod being arranged to slide within the shaft to cause the blade to rotate about its pivot. The instrument further comprises a depth stop coupled to the shaft arranged such that when the shaft is inserted into a bore extending into a bone the depth stop is arranged to engage bone surrounding the bore to limit movement of the shaft into the bore. A spring couples the push rod to the shaft and is arranged to resist axial movement of the push rod within the shaft towards the first end of the shaft. When the depth stop engages bone surrounding a bore, axial force exceeding the spring resistance applied to the push rod causes the push rod to slide within the shaft. | 06-02-2011 |
20110112653 | BONE CEMENT HANDLING - A bone cement collector includes a body having a structure that is permeable to bone cement and has opening for trapping bone cement. The body is releasably attached to an orthopaedic implant component at a location on the implant at which bone cement is likely to escape during positioning of the orthopaedic implant. | 05-12-2011 |
20110106095 | DRILL GUIDE ASSEMBLY - A drill guide assembly for determining the axis for drilling a bore in a generally dome-shaped bone to receive a component of an orthopaedic joint prosthesis is described. The drill guide assembly includes a drill guide sleeve, a carriage and a platform. The drill guide sleeve is mounted in the carriage towards a first end so that the angular orientation of the drill guide sleeve relative to the carriage can be adjusted about at least one axis. The carriage includes at least one threaded angle-adjustment screw which extends between the carriage and the drill guide sleeve by which the angular orientation of the drill guide sleeve can be adjusted. The platform is fastenable to the bone, and includes at least three feet depending from the platform to engage the surface of the bone with the bone extending towards the platform into the space between the feet. | 05-05-2011 |
20110093108 | CUSTOMISED SURGICAL APPARATUS - A method for producing a customised surgical instrument or prosthesis for a specific patient is described. At least one x-ray image of a body part of the patient is captured. A statistical model having a dense set of anatomical correspondence points across the model is instantiated using image data derived from the at least one x-ray image to generate a patient specific model of the body part having a high accuracy surface. Patient specific data from the patient specific model is used to generate a design of the customised surgical instrument or prosthesis for use in a surgical procedure to be carried out on the body part. The surgical instrument or prosthesis is then manufactured using the design. A computer implemented method for generating the patient specific model of the body part is also described. | 04-21-2011 |
20110092979 | ACETABULAR ALIGNMENT GUIDE - An alignment guide for guiding the positioning of an acetabular cup implant includes a body having a first end and a second end. A flange extends from the first end and is adapted to rest on a labrum of an acetabulum. At least a first formation is provided at the second end which is adapted to engage with a transverse acetabular ligament of the acetabulum. A formation for accepting a trackable instrument is provided to allow a tracking system to determine the orientation of the guide. | 04-21-2011 |
20110092858 | SURGICAL APPARATUS AND PROCEDURE - A computer assisted surgery method and apparatus for determining a change in a property of a joint of a patient caused by an arthroplasty procedure is described. The relative position of a first bone and a second bone of the joint is determined with the joint in a first position. The position of a pre-operative center of motion of the joint relative to the first bone is determined. The position of the second bone relative to the pre-operative center of motion is determined using the relative position of the first and second bones. The position of a post-operative center of motion resulting from a prosthetic component to be used in the joint is determined. The position of the second bone relative to the post-operative center of motion is determined. Any change in the property of the joint. is determined from the difference between the position of the second bone relative to the pre-operative center of motion and the position of the second bone relative to the post-operative center of motion. | 04-21-2011 |
20110060418 | INSTRUMENT FOR USE IN A JOINT REPLACEMENT PROCEDURE - An instrument for use in a joint replacement procedure includes a trial head that corresponds to the head of an orthopaedic joint component having an upper surface defined by a curved surface and a bore formed in a lower surface and a trial connector for connecting the trial head to a stem part of the orthopaedic joint component which is intended for location in the intramedullary cavity of a bone. The trial connector can be fitted into the bore in the trial head at a variable angular orientation. | 03-10-2011 |
20100063548 | Spinal Correction Method Using Shape Memory Spinal Rod - Various methods and devices related to correcting a spinal deformity are disclosed herein. In one embodiment, a method is provided and can include attaching to at least a portion of a patient's spine a spinal correction template having a first configuration, which substantially corresponds to an uncorrected shape of a spine. The spinal correction template can be activated such that the template achieves a second configuration to cause the spine to assume an orientation substantially corresponding to the second configuration of the spinal correction template. The method can further include attaching a primary spinal rod to at least a portion of a spine after the spine achieves a corrected orientation, and removing the spinal correction template. In some embodiments, the method can include inserting a secondary spinal rod in place of the spinal correction template. In one embodiment, the spinal correction template can be formed of a shape-memory alloy such as nitinol. | 03-11-2010 |
20080306551 | Surgical Fastening - A surgical fastening ( | 12-11-2008 |
20080294258 | Orthpaedic Monitoring System, Methods and Apparatus - Methods, systems and apparatus for monitoring and assessing the orthopaedic performance of a patient are described. The method can comprise implanting at least a first and second RF wirelessly detectable markers in first and second bones associated with a site. A procedure can be carried out on the site and the positions of the first and second markers can be detected after the procedure has been completed. The detected positions can be used to assess the orthopaedic performance of the patient. An orthopaedic monitoring system comprises a monitoring station including a tracking system for RF wirelessly detecting the positions of markers within a working volume of the monitoring station. A computer control system is configured to determine a marker position for each of a plurality of markers implanted in a patient located in the working volume. The computer control system also generates an indication of the orthopaedic performance of the patient from the marker positions. The computer implemented method comprises identifying each of the plurality of markers, determining the positions of each of the markers and using the positions of the markers to generate a representation of the orthopaedic performance of the patient. | 11-27-2008 |