Facet joint reamer

• US 20070123891A1
• Filed: 10/25/2006
• Published: 05/31/2007
• Est. Priority Date: 10/26/2005
• Status: Abandoned Application

• Current Assignee: Joimax GmbH
• Original Assignee: Joimax GmbH
• Inventors: Ries, Wolfgang, Notheis, Mathias
• Application Number:
  US11/585,867
• Publication Number:
  US 20070123891A1
• Time in Patent Office: Days
• US Class Current: 606/80
• CPC Class Codes: A61B 17/1637 Hollow drills or saws producing a curved cut, e.g. cylindrical A61B10/025, A61B17/1695 take precedence
• CPC Class Codes: A61B 17/1671 for the spine
• CPC Class Codes: A61B 2017/00464 for use with different instruments with hole for different instruments A61B2017/22072

Abstract

In a facet joint reamer with a substantially cylindrical shank, teeth at the distal shank end and a handle at the proximal end, the shank and handle are separable.

Claims

1. Facet joint reamer with a substantially cylindrical shank, with teeth at the distal shank end and with a handle at the proximal end, wherein shank and handle are separable.

2. Reamer according to claim 1, wherein shank and handle are nondestructively separable.

3. Reamer according to claim 1, wherein shank and handle are provided with a cooperating connecting device.

4. Reamer according to claim 1, wherein at its proximal end the shank has a lateral depression in which engages a ball seated on handle.

5. Reamer according to claim 1, wherein a slider is movable between a release position for releasing the shank from the handle and a locking position in which the shank is reliable held in handle.

6. Reamer according to claim 5, wherein the slider is spring loaded.

7. Reamer according to claim 6, wherein the slider is held in the locking position by a spring.

8. Reamer according to claim 1, wherein the slider has a widened inner area.

9. Reamer according to claim 1, wherein the slider can be slid from its locking position into its release position by manual action counter to the force of spring.

10. Reamer according to claim 1, wherein the slider can be slid in the proximal direction into its release position counter to the action of spring.

11. Reamer according to claim 1, wherein the slider can be slid in the distal direction into its release position counter to the action of spring.

12. Reamer according to claim 1, wherein the shank and handle are connectable to rotate with one another.

13. Reamer according to claim 12, wherein a connecting part of shank is constructed as an external polygon, particularly trihedron and a reception area of handle as an internal polygon, preferably internal trihedron.

14. Reamer according to claim 1, wherein a connecting part of the shank is made from plastic.