Osteosynthesis clip and ancillary material for its emplacement

• US 5,788,698 A
• Filed: 10/16/1995
• Issued: 08/04/1998
• Est. Priority Date: 04/19/1993
• Status: Expired due to Fees

• Current Assignee: Claude Savornin
• Original Assignee: Claude Savornin
• Inventors: Savornin, Claude
• Primary Examiner(s): Tucker, Guy V.
• Application Number:
  US08/532,650
• Time in Patent Office: 1,023 Days
• Field of Search: 606/75, 606/72, 606/73, 606/60, 606/69, 606/70, 606/71, 606/219, 606/220, 606/216, 606/96, 606/99, 606/100, 606/104, 606/86, 606/142, 606/143
• US Class Current: 606/75
• CPC Class Codes: A61B 17/0642 for bones, e.g. for osteosynthesis or connecting tendon to bone
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 17/0682 for applying U-shaped staples or clamps, e.g. without a forming anvil
• CPC Class Codes: A61B 17/17 Guides or aligning means for drills , mills, pins or wires
• CPC Class Codes: A61B 17/809 with bone-penetrating elements, e.g. blades or prongs bone staples A61B17/0642; intramedullary nails with a plate at an end A61B17/7233

Abstract

An osteosynthesis clip consisting of a central member and two side members. The central member includes two portions with an outwardly-open obtuse angle therebetween, and the distal ends of the side members include a sloping portion defined by an inward-facing surface. Ancillary equipment for fitting the clip is also disclosed. The clip is characterized in that the side members converge at an angle of less than 20° and their outer surfaces have jagged portions which prevent withdrawal.

Claims

1. Osteosynthesis clip comprising a core and two lateral legs, the core having two portions inclined relative to each other and forming an outwardly opening obtuse angle (α

), the two legs terminating at their distal end in a bevel delimited by an inwardly oriented surface and having an anti-return device comprising teeth, wherein the legs are convergent and form between them an angle less than 20°

, and the teeth of said anti-return device are formed on an external surface of each of the legs.

2. Clip according to claim 1, wherein the transverse cross section of the core and of the legs of the clip is circular.

3. Clip according to claim 1, further comprising an internal claw in the angle formed between the core of the clip and each of the lateral legs.

4. Clip according to claim 1, wherein the clip is made of a vacuum melted low carbon steel.

5. Clip according to claim 1, wherein the clip is made of titanium steel.

6. Clip according to claim 1, wherein the clip is made of a biodegradable material.

7. Clip according to claim 1, wherein the outwardly opening obtuse angle formed by the two portions of the core is an angle of 150°

, and the angles formed between each of the lateral legs and the core are respectively 88° and

58°

.

8. Clip according to claim 1, wherein the length of the legs is a function of the size of the clip.

9. Clip according to claim 1, wherein the length of the legs is constant for all sizes of clip.

10. Ancillary apparatus for implanting clips of different sizes according to claim 1, comprising:

a spacer having a sleeve including a concave spoon connected by a taper, said spoon having a longitudinal throat,

a plurality of aimers adapted for different sizes of clips and comprising bores for guiding broaches whose inclination and spacing correspond, in combination with the shape of a lower surface of the aimer, to the dimensions of the clip to be emplaced,

a gripping impactor arranged to receive a plurality of clip holders, corresponding to the different sizes of clips, each clip holder being mounted removably on a support sliding in a tube, a projecting end of the clip holder including a recess for the clip, and

a final impactor provided with a head profiled to the shape of the clips and including a throat.