Method and apparatus for orthopedic fixation

Patent metadata

Field	Value
Publication number	US-10022135-B2
Application number	US-201715602528-A
Country	US
Kind code	B2
Filing date	May 23, 2017
Priority date	Oct 16, 2007
Publication date	Jul 17, 2018
Grant date	Jul 17, 2018

Abstract

A dual reconstructive wire system for use with an anatomy can include a first guide wire, a second guide wire, a first guide instrument, a first cannulated insertion instrument, and a second cannulated insertion instrument. The first guide wire can pass through the first cannulated insertion instrument such that a first end and a second end of the first guide wire extends beyond the first end and the second end, respectively of the first cannulated insertion instrument. The second guide wire can pass through the second cannulation insertion instrument such that a first end and a second end of the second guide wire extends beyond the first end and the second end, respectively of the second cannulated insertion instrument.

First claim

What is claimed is:

1. An orthopedic screw, comprising:
a head comprising a plurality of driver interface features for selectively interfacing with a plurality of drivers, each driver including a unique head engagement feature or a unique combination of head engagement features, wherein the plurality of driver interface features are concurrent and overlapping and includes:
a right-handed thread disposed on an inner surface of an inner head bore;
a left-handed thread disposed on the inner surface of the inner head bore; and
an inner hexagonal surface disposed on the inner surface of the inner head bore;
wherein at least one of the right-handed thread or the left-handed thread is interrupted by the inner hexagonal surface; and

a shaft extending from the head along a longitudinal axis, wherein the shaft is at least partially threaded.

2. The orthopedic screw of claim 1 , wherein the plurality of driver interface features further includes an outer hexagonal surface disposed on an outer circumferential portion of the head that is concentric with the inner hexagonal surface.

3. The orthopedic screw of claim 2 , wherein the head further comprises a cylindrical base disposed between the outer hexagonal surface and the shaft.

4. The orthopedic screw of claim 1 , further comprising an axial throughbore extending through the orthopedic screw along the longitudinal axis.

5. The orthopedic screw of claim 4 , wherein the axial throughbore comprises a plurality of stepwise throughbores.

6. The orthopedic screw of claim 5 , wherein the plurality of stepwise throughbores includes a shank bore and at least one head bore.

7. The orthopedic screw of claim 1 , wherein the shaft comprises an unthreaded portion disposed between the head and a threaded portion of the shaft.

8. An orthopedic screw, comprising:
a head comprising a plurality of driver interface features for selectively interfacing with a plurality of drivers, each driver including a unique head engagement feature or a unique combination of head engagement features, wherein the plurality of driver interface features are concurrent and overlapping and includes:
an outer hexagonal surface disposed on an outer circumferential portion of the head;
a right-handed thread disposed on an inner surface of an inner head bore;
a left-handed thread disposed on the inner surface of the inner head bore; and
an inner hexagonal surface disposed on the inner surface of the inner head bore, the inner hexagonal surface concentric with the outer hexagonal surface;
wherein at least one of the right-handed thread or the left-handed thread is interrupted by the inner hexagonal surface; and

a shaft extending from the head along a longitudinal axis, wherein the shaft is at least partially threaded.

9. The orthopedic screw of claim 8 , wherein the head further comprises a cylindrical base disposed between the outer hexagonal surface and the shaft.

10. The orthopedic screw of claim 8 , further comprising an axial throughbore extending through the orthopedic screw along the longitudinal axis.

11. The orthopedic screw of claim 10 , wherein the axial throughbore comprises a plurality of stepwise throughbores.

12. The orthopedic screw of claim 11 , wherein the plurality of stepwise throughbores includes a shank bore and at least one head bore.

13. The orthopedic screw of claim 8 , wherein the shaft comprises an unthreaded portion disposed between the head and a threaded portion of the shaft.

14. A system, comprising:
an orthopedic screw, comprising:
a head comprising a plurality of driver interface features for selectively interfacing with a plurality of drivers, each driver including a unique head engagement feature or a unique combination of head engagement features, wherein the plurality of driver interface features are concurrent and overlapping and include:
a right-handed thread disposed on an inner surface of an inner head bore;
a left-handed thread disposed on the inner surface of the inner head bore; and
an inner hexagonal surface disposed on the inner surface of the inner head bore;
wherein at least one of the right-handed thread or the left-handed thread is interrupted by the inner hexagonal surface; and

a shaft extending from the head along a longitudinal axis, wherein the shaft is at least partially threaded; and

a plurality of drivers including one or more of a hex driver, a socket driver, or a threaded driver.

15. The system of claim 14 , wherein the plurality of driver interface features further includes an outer hexagonal surface disposed on an outer circumferential portion of the head that is concentric with the inner hexagonal surface.

16. The system of claim 15 , wherein the head further comprises a cylindrical base disposed between the outer hexagonal surface and the shaft.

17. The system of claim 14 , further comprising an axial throughbore extending through the orthopedic screw along the longitudinal axis.

18. The system of claim 17 , wherein the axial throughbore comprises a plurality of stepwise throughbores.

19. The system of claim 18 , wherein the plurality of stepwise throughbores includes a shank bore and at least one head bore.

20. The orthopedic screw of claim 14 , wherein the shaft comprises an unthreaded portion disposed between the head and a threaded portion of the shaft.

Assignees

• Biomet Mfg Llc

Inventors

• O'Reilly Joseph Michael
• Frank Philip Harris
• Bender Nicholas Joseph
• Strycharz Michael Charles

Classifications

• A61B17/1668

  for the upper femur (A61B17/164 takes precedence) · CPC title

• A61B17/1703

  using imaging means, e.g. by X-rays · CPC title

• A61B17/1721

  for applying pins along or parallel to the axis of the femoral neck · CPC title

• A61B17/848

  Kirschner wires, i.e. thin, long nails · CPC title

• A61B2090/034

  abutting on parts of the device itself · CPC title