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US 11,801,142 B2Granted
Non-invasively adjustable bone prosthesis
OwnerJeffrey David Gordoninventor
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OwnerJeffrey David Gordoninventor
Estimating the term…
The invention herein described is an endoprosthesis intended to replace a resected portion of bone and joint. The invention can be non-invasively, manually operated to lengthen a patient's limb both intraoperatively and postoperatively. It includes bone anchoring components for anchoring to a first and second long bone, a joint to replace the function of an orthopedic joint, and a purely mechanical lengthening mechanism which can be located and operated manually by an operator by pressing on skin of a patient without requiring a surgical incision. An alternative embodiment of the invention describes a similar extendable endoprosthesis which is unlocked by an operator by pressing on skin of a patient and the limb is subsequently pulled or pushed by the operator to change its length. The invention does not need or include any magnets, electric motors, electric current, application of heat or a fluid displacement (hydraulic) system.
A non-invasively extendable endoprosthesis incorporating:
A non-invasively extendable endoprosthesis incorporating a first feature configured for attachment to a first long bone, a second feature configured for attachment to a second, adjacent long bone, a joint having at least one rotational degree of freedom which is intended to replace the function of an orthopaedic joint, and a release mechanism which is purely mechanical and manually operates while being located and activated by an operator post-operatively by pressing on skin of a patient, without requiring a surgical incision, a magnet, a hydraulic or pneumatic component, electrical current or application of heat, wherein said operator may subsequently pull or push the limb to change its length.
Dependencies are inferred from the claim text.