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US 12,558,238 B2Granted
Arthroplasty insert
AssigneeZimmer, Inc.
InventorVarun Jayant Oak
Life of this patent
Estimating the term…
Abstract
Systems, methods and apparatuses including an insert having a body with a plurality of bladders therein, a proximal surface and a distal surface. Two or more of the plurality of bladders are in fluid communication with one another. The plurality of bladders are expandable and contractible in volume. The proximal surface shapable by a change in the volume of one or more of the plurality of bladders. The proximal surface is configured to interface with a first arthroplasty implant of the patient. The distal surface is spaced from the proximal surface by the body and is configured to interface with a second arthroplasty implant of the patient.
Claims19
An insert for replacement of a joint of a patient, the insert comprising:
- a body having a plurality of bladders therein, two or more of the plurality of bladders in fluid communication with one another, the plurality of bladders expandable and contractible in volume;
- a proximal surface shapable in situ by a change in the volume of one or more of the plurality of bladders to achieve a desired conformity along the proximal surface with a first arthroplasty implant of the patient, the proximal surface when so shaped with the desired conformity is configured to interface with and facilitate articular movement with the first arthroplasty implant of the patient;
- and
- a distal surface spaced from the proximal surface by the body, the distal surface configured to interface with a second arthroplasty implant of the patient.
1 more element
A system for a knee arthroplasty, the system comprising:
- a tibial implant configured to couple to a resected surface of a tibia;
- a femoral implant configured to couple to a resected surface of a femur;
- an insert positionable between the femoral implant and the tibial implant, the insert comprising:
- a body with a plurality of bladders therein, two or more of the plurality of bladders in fluid communication with one another, the plurality of bladders expandable and contractible in volume;
- and
- a proximal surface shaped in situ by changes in the volume of one or more of the plurality of bladders to achieve a desired conformity along the proximal surface with the femoral implant, the proximal surface when so shaped with the desired conformity is configured to interface with and facilitate articular movement with the femoral implant;
- a first plurality of sensors configured to be positioned between the tibial implant and the insert, the first plurality of sensors arranged to correspond in a position distal of the plurality of bladders;
- a second plurality of sensors coupled to one of the femoral implant or femur;
- processing circuitry;
- and
- a memory that includes instructions, the instructions, when executed by the processing circuitry, cause the processing circuitry to:
- receive first sensor data from the first plurality of sensors;
- receive second sensor data from the second plurality of sensors;
- determine, based upon the first sensor data and the second sensor data, one or more kinematics of a knee joint of a patient;
- and
- control the insert to expand or contract one or more of the plurality of bladders including to shape the proximal surface based upon the one or more kinematics.
13 more elements
An assembly for a knee arthroplasty, the assembly comprising:
- a tibial implant coupled to a resected surface of a tibia;
- a femoral implant coupled to a resected surface of a femur;
- an insert positioned between the femoral implant and the tibial implant and coupled to the tibial implant, the insert comprising:
- a body with a plurality of bladders therein, two or more of the plurality of bladders in fluid communication with one another, the plurality of bladders expandable and contractible in volume;
- and
- a proximal surface shaped in situ by changes in the volume of one or more of the plurality of bladders to achieve a desired conformity along the proximal surface with the femoral implant, the proximal surface when so shaped with the desired conformity is configured to interface with and facilitate articular movement with the femoral implant;
- a first plurality of sensors positioned between the tibial implant and the insert, the first plurality of sensors arranged to correspond in a position distal of the plurality of bladders;
- a second plurality of sensors coupled to one of the femoral implant or femur;
- processing circuitry mounted to one of the tibial implant or the femoral implant;
- and
- a memory that includes instructions, the instructions, when executed by the processing circuitry, cause the processing circuitry to:
- receive first sensor data from the first plurality of sensors;
- receive second sensor data from the second plurality of sensors;
- determine, based upon the first sensor data and the second sensor data, one or more kinematics of a knee joint of a patient;
- and
- control the insert to expand or contract one or more of the plurality of bladders including to shape the proximal surface based upon the one or more kinematics.
13 more elements
Dependencies are inferred from the claim text.