Method and apparatus for interosseous bone fixation

• US 4,841,960 A
• Filed: 02/10/1987
• Issued: 06/27/1989
• Est. Priority Date: 02/10/1987
• Status: Expired due to Fees

• Current Assignee: Eric T. Garner
• Original Assignee: Eric T. Garner
• Inventors: Garner, Eric T.
• Primary Examiner(s): Hafer, Robert A.
• Assistant Examiner(s): ROONEY, KEVIN
• Application Number:
  US07/012,838
• Time in Patent Office: 868 Days
• Field of Search: 128/94 YC, 128/92 YD, 128/92 YF, 128/92 YE
• 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 17/58 for osteosynthesis, e.g. bone plates, screws , setting implements or the like A61B17/14, A61B17/16 take precedence

Abstract

A method and apparatus for interosseous bone fixation. Portions of bone on opposite sides of a fracture are compressed toward each other by inserting the opposite ends of a bone stape into each bone portion and crimping the central portion of the staple. A bone staple having a central web portion adapted to be crimped into substantially an inverted V shape is also disclosed. Various devices for crimping a bone staple are also disclosed.

Claims

1. A method for bone fixation, comprising the steps of:

(a) inserting first and second feet of a bone staple into first and second drill holes, respectively, in a section of bone, said first drill hole located on a first side of a fracture line in said bone section and said second drill hole located on a second side of said fracture line;

(b) crimping a web of said staple into substantially an inverted V shape, said crimping step providing an initial compression of said bone portions toward each other;

(c) compressing said crimped portion of said staple web, said compressing step providing a second compression of said bone portions toward each other; and

(d) folding said compressed portion of said staple web toward one side of said fracture line.

2. A method for fixating a first bone portion and a second bone portion, comprising the steps of:

(a) inserting a first foot and second foot of a bone staple into said first bone portion and said second bone portion, respectively, said first foot and said second foot being substantially perpendicular to a central portion of said staple;

(b) crimping said central portion of said staple into substantially an inverted V shape and in a plane substantially perpendicular to the plane of said first foot and said second foot so as to cause said first foot to impart compressive forces to said first bone portion in a first direction toward said second foot and simultaneously cause said second foot to impart compressive forces to said second bone portion in a second direction toward said first foot, said crimping step providing an initial compression of said bone portion toward each other; and

compressing said crimped central portion so as to cause said first foot to impart compressive forces to said first bone portion in a first direction toward said second foot and simultaneously cause said second root to impart compressive forces to said second bone portion in a second direction toward said first foot, said compressing step providing a second compression of said bone portions toward each other.

3. A method for fixating a first bone portion and a second bone portion, as recited in claim 2, further comprising the step of drilling first and second holes in said first and second bone portions, respectively, prior to said step of inserting said first foot into said first bone portion and said second foot into said second bone portion.