Resorptive intramedullary implant between two bones or two bone fragments

Patent metadata

Field	Value
Publication number	US-2016008045-A1
Application number	US-201514858855-A
Country	US
Kind code	A1
Filing date	Sep 18, 2015
Priority date	Sep 9, 2008
Publication date	Jan 14, 2016
Grant date	—

Abstract

The invention relates to a resorptive intramedullary implant between two bones or two bone fragments. The implant includes a single-piece body ( 1 ) having a generally elongate shape and having, at each end, areas for anchoring to the bone portions in question, characterized in that one of said areas (A 1 ) has a cylindrical cross-section while the other area (A 2 ) has a flat cross-section.

First claim

1 - 11 . (canceled)

12 . A method for performing arthrodesis or osteosynthesis of first and second bone parts, the method comprising the steps of:
inserting a first threaded end of an implant into a first bone part, the implant including a second end extending from the first end, the second end having a longitudinal axis, a body portion, and a plurality of teeth projecting from the body portion, wherein at least a first tooth of the plurality of teeth is spaced from a second tooth of the plurality of teeth in a direction along the longitudinal axis of the second end, the first and second teeth extending from the body portion in a same direction, and at least the first tooth extending from the body portion in a different direction than a direction a third tooth of the plurality of teeth extends from the body portion; and fitting the second end into the second bone part.

13 . The method of claim 12 , further comprising the step of preparing the second bone part with a rasp prior to fitting the second end of the implant into the second bone part.

14 . The method of claim 12 , further comprising the step of tapping the first bone part prior to inserting the first end of the implant into the first bone part.

15 . The method of claim 12 , wherein the second end has an opening in a median portion thereof adapted to enable elastic deformation of opposing sides thereof, and wherein the opposing sides are in a compressed state while the second end is being fitted into the second bone part, the opposing sides expanding once fitted within the second bone part.

16 . The method of claim 12 , wherein the body portion has opposing flat surfaces parallel to the longitudinal axis.

Assignees

• Stryker Europe Holdings I Llc

Inventors

• Prandi Bernard
• Augoyard Marc
• Ledermann Thomas
• Meusnier Tristan
• Peyrot Jacques
• Fellmann Judith

Classifications

• A61F2002/30563

  having elastic means or damping means, different from springs, e.g. including an elastomeric core or shock absorbers · CPC title

• A61F2002/30062

  (bio)absorbable, biodegradable, bioerodable, (bio)resorbable, resorptive · CPC title

• A61F2002/30878

  with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts · CPC title

• A61B17/7266

  with fingers moving radially outwardly · CPC title

• A61F2/4225

  for feet, e.g. toes · CPC title