摘要:
The present invention relates to methods for the manufacturing, inventorying, and supplying of medical components. In one exemplary embodiment, the method includes fabricating individual subcomponents of a modular medical device system as finished goods. The finished subcomponents may then be sterilized, stocked, and inventoried and, upon request from a consumer, the individual subcomponents may be supplied to the consumer. For example, the consumer may be a hospital, a surgeon, or a sales representative. Once the individual subcomponents are received by the consumer, the individual subcomponents may then be assembled by the consumer to form a final, implantable medical device.
摘要:
A plurality of individual medical devices is created that define a medical device family. Within the family of medical devices, each of the plurality of medical devices has at least one dimension that, within an acceptable tolerance, is substantially equal to the same dimension of another of the plurality of medical devices. Thus, for each medical device in the family, another, corresponding medical device has at least one substantially similar dimension. For example, a first medical device may have a first value for a dimension and a second medical device may have a second value for the same dimension that is equal to one of the sum of the second dimension and the acceptable tolerance or the difference between the second dimension and the acceptable tolerance. Thus, each of the plurality of medical devices varies from another of the plurality of medical devices by the acceptable tolerance.
摘要:
A knee prosthesis is provided for use in knee arthroplasty. In one exemplary embodiment, the present invention provides a tibial prosthesis having a tibial baseplate with a fixed medial bearing component and a mobile lateral bearing component. In one exemplary embodiment, the lateral bearing component is secured to the lateral portion of the tibial baseplate utilizing at least one prosthetic ligament. Additionally, in one exemplary embodiment, a stop is provided to limit anterior or posterior movement of the lateral bearing component relative to the tibial baseplate. For example, the stop may be defined by cooperating shoulders formed on the lateral bearing and the tibial baseplate.
摘要:
A knee prosthesis is provided for use in knee arthroplasty. In one exemplary embodiment, the present invention provides a tibial prosthesis having a tibial baseplate with a fixed medial bearing component and a mobile lateral bearing component. In one exemplary embodiment, the lateral bearing component is secured to the lateral portion of the tibial baseplate utilizing at least one prosthetic ligament. Additionally, in one exemplary embodiment, a stop is provided to limit anterior or posterior movement of the lateral bearing component relative to the tibial baseplate. For example, the stop may be defined by cooperating shoulders formed on the lateral bearing and the tibial baseplate.
摘要:
A plurality of individual medical devices is created that define a medical device family. Within the family of medical devices, each of the plurality of medical devices has at least one dimension that, within an acceptable tolerance, is substantially equal to the same dimension of another of the plurality of medical devices. Thus, for each medical device in the family, another, corresponding medical device has at least one substantially similar dimension. For example, a first medical device may have a first value for a dimension and a second medical device may have a second value for the same dimension that is equal to one of the sum of the second dimension and the acceptable tolerance or the difference between the second dimension and the acceptable tolerance. Thus, each of the plurality of medical devices varies from another of the plurality of medical devices by the acceptable tolerance.
摘要:
A surgical instrument including a shaping instrument for shaping a bone as well as an impaction/extraction device for use with the shaping instrument is disclosed.
摘要:
Methods for predetermining a contour of a resected bone surface and assessing a fit of a prosthesis on the resected bone surface, for designing prostheses to fit discrete patient populations, and for designing customized prostheses.
摘要:
A tibial spacer paddle comprises a spacer block comprising opposing bearing surfaces, an alignment slot extending into the spacer block; and a handle extending from the spacer block. The spacer block can include feet for passively engaging the femur or pegs for actively engaging a femoral component so that the spacer block is linked to the femur while the tibia rotates. A tibial spacer system comprises a provisional component having an alignment tab extending from a body and an alignment indicator located on the body, a femoral component and a pin extending from the femoral component. The pin can engage the alignment tab so that the provisional component is linked to the femur while the tibia rotates. In addition to or alternatively to the alignment tab and pin, the provisional component can include a tibial plate that can be rotationally connected to the provisional component.
摘要:
Methods and apparatuses including apparatuses that can be used in a unicompartmental knee replacement procedure, a bicompartmental knee replacement procedure comprised of two unicompartmental knee replacements, a knee replacement procedure that utilizes a single femoral component and two unicompartmental tibial components, and other types of knee replacement procedures are disclosed. According to one example, an apparatus for guiding a tibial bone cut during knee replacement surgery is disclosed. The apparatus can comprise a mounting portion and a cutting portion. The mounting portion can be configured to couple with an alignment mechanism. The cutting portion can be connected to the mounting portion and can define a capture for a proximal cut. The cutting portion can have an aperture disposed adjacent a first end of the capture.
摘要:
A surgical instrument and method determine the orientation of the mechanical axis of a femur. The instrument may include a rod with a first end of the rod rotatably secured at a first point on the surface of distal femur that corresponds to center of the knee joint so that the first end is coincident with the mechanical axis. The connection between the first end of the rod and the distal end of the femur defines a first point of rotation. The second end of the rod is slideably received within a sleeve that is rotatably connected to a support positioned distally away from the distal end of the femur. The connection between the sleeve and the support defines a second point of rotation. When the distance between the first and second points of rotation is minimized, a line drawn therebetween is coincident with the mechanical axis of the femur.