Amputation bone cap

• US 8,545,560 B2
• Filed: 12/01/2011
• Issued: 10/01/2013
• Est. Priority Date: 01/17/2008
• Status: Active Grant

• Current Assignee: Orthorifling Systems, LLC
• Original Assignee: Orthorifling Systems, LLC
• Inventors: Malawer, Martin M.
• Primary Examiner(s): Snow, Bruce E
• Assistant Examiner(s): DUKERT, BRIAN AINSLEY
• Application Number:
  US13/309,335
• Publication Number:
  US 20120078382A1
• Time in Patent Office: 670 Days
• Field of Search: 623/23.12, 623/23.14, 623/33
• US Class Current: 623/16.11
• CPC Class Codes: A61F 2/2814 Bone stump caps
• CPC Class Codes: A61F 2/30749 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2/36 Femoral heads ; Femoral endoprostheses
• CPC Class Codes: A61F 2002/30332 Conically- or frustoconically-shaped protrusion and recess
• CPC Class Codes: A61F 2002/30772 Apertures or holes, e.g. of circular cross section
• CPC Class Codes: A61F 2002/3085 with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface
• CPC Class Codes: A61F 2002/30878 with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
• CPC Class Codes: A61F 2002/30881 Circumferential ribs, flanges or fins
• CPC Class Codes: A61F 2220/0033 made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit

Abstract

A muscle fastening cap includes a head having one or more groups of openings along a direction of its axial length. The cap also may include a stem adapted for insertion into a muscle-supporting structure such as an intramedullary canal or a prosthesis device.

Claims

1. A method of fastening a modular muscle of an amputee, comprising:

providing a muscle cap having a first portion and a second portion, the first portion extending in a first direction, including at least one group of through holes substantially aligned along the first direction where each of the through holes extends in a second direction transverse to the first direction and the second portion forming a stem extending from the first portion in the first direction,

positioning the stem portion in a muscle-supporting structure such that said first portion is exposed in relation to the muscle-supporting structure;

passing a plurality of surgical tapes through respective through holes formed in said first portion, and

securing said surgical tapes to adjacent muscle tissue.

2. The method of claim 1, wherein the stem comprises a tapered surface.

3. The method of claim 1, wherein each through hole is configured to receive at least one of said plurality of surgical tapes for securing muscle tissue to the first portion.

4. The method of claim 1, wherein the first portion and second portion are integrally formed with one another.

5. The method of claim 1, wherein the first portion has a hemispherical shape.

6. The method of claim 1, wherein the first portion has a conical shape.

7. The method of claim 1, wherein said stem portion is inserted into a bone canal.

8. A method of fastening a modular muscle of an amputee, comprising:

providing a muscle cap having a first portion and a second portion, the first portion extending in a first direction, including at least one group of through holes substantially aligned along the first direction where each of the through holes extends in a second direction substantially perpendicular to the first direction and the second portion forming a stem extending from the first portion in the first direction,

positioning the stem portion in a muscle-supporting structure such that said first portion is exposed in relation to the muscle-supporting structure;

passing a plurality of surgical tapes through respective through holes formed in said first portion, and

securing said surgical tapes to adjacent muscle tissue.