Surgical instrument and method

Patent metadata

Field	Value
Publication number	US-2016262809-A1
Application number	US-201514645232-A
Country	US
Kind code	A1
Filing date	Mar 11, 2015
Priority date	Mar 11, 2015
Publication date	Sep 15, 2016
Grant date	—

Abstract

A surgical instrument having a first member engageable with a first end of a fastener having a second end configured to penetrate tissue. A second member includes an expandable member configured for engaging the first end. Systems and methods are disclosed.

First claim

What is claimed is:

1 . A surgical instrument comprising:
a first member being engageable with a first end of a fastener having a second end configured to penetrate tissue; and a second member including an expandable member configured for engaging the first end.

2 . A surgical instrument as recited in claim 1 , wherein the first end includes a spherical shape.

3 . A surgical instrument as recited in claim 1 , wherein the second member includes a flexible collet configured to snap around the first end.

4 . A surgical instrument as recited in claim 1 , further comprising a third member coupled with the second member, the second and third members being configured to translate relative to each other between a first position and a second position.

5 . A surgical instrument as recited in claim 4 , wherein the third member is configured to lock the first member in a closed position.

6 . A surgical instrument as recited in claim 1 further including a retaining cap configured to apply a force to form a compression fit between the first end and the second member.

7 . A surgical instrument as recited in claim 1 , further comprising a third member having a tip defining a cavity for disposal of the first end and including a hard stop configured to prevent the fastener from penetrating into tissue beyond a selected limit.

8 . A surgical instrument as recited in claim 1 , further comprising a third member having a tip defining a reamer end surface configured to bore a path about the first end.

9 . A surgical instrument as recited in claim 8 , wherein the reamer end surface includes a plurality of teeth.

10 . A surgical instrument as recited in claim 1 , wherein the second member includes a flexible collet engageable by a third member between a first position and a second position.

Assignees

• Warsaw Orthopedic Inc

Inventors

• May Jason M
• Rezach William A
• Ballard Rodney R

Classifications

• A61B17/7082 Primary

  for driving, i.e. rotating, screws or screw parts specially adapted for spinal fixation, e.g. for driving polyaxial or tulip-headed screws · CPC title

• A61B17/1637

  Hollow drills or saws producing a curved cut, e.g. cylindrical (A61B10/025, A61B17/1695 take precedence) · CPC title

• A61B17/7076 Primary

  for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation · CPC title