Blade positioning device

Patent metadata

Field	Value
Publication number	US-9358036-B2
Application number	US-201313796416-A
Country	US
Kind code	B2
Filing date	Mar 12, 2013
Priority date	Mar 12, 2013
Publication date	Jun 7, 2016
Grant date	Jun 7, 2016

Abstract

A microdebrider comprising: (a) a handpiece; (b) an interchangeable tip connected to the handpiece; (c) an outer tube rotatably connected to the interchangeable tip, the outer tube including an outer tube window; (d) an inner tube extending at least partially through the outer tube, the inner tube including an inner tube window; (e) a lock selector connected to the inner tube; and (f) a bias device; wherein the bias device is movable, and upon movement of the bias device into contact with the lock selector the inner tube is immobilized so that the inner tube window is aligned with the outer tube window, aligned with a wall of the outer tube, or in a condition therebetween.

First claim

We claim:

1. A microdebrider comprising:
a. a handpiece;
b. an interchangeable tip connected to the handpiece;
c. an outer tube rotatably connected to the interchangeable tip, the outer tube including an outer tube window;
d. an inner tube extending at least partially through the outer tube, the inner tube including an inner tube window;
e. a lock selector connected to the inner tube; and
f. a bias device including an actuation selector, the actuation selector including two or more fingers;
wherein the bias device is movable, and upon movement of the bias device into contact with the lock selector the inner tube is immobilized so that the inner tube window is aligned with the outer tube window, aligned with a wall of the outer tube, or in a condition therebetween;
wherein one of the two or more fingers is a director.

2. The microdebrider of claim 1 , wherein the bias device is rotatably connected to the lock selector and the inner tube window can be rotated so that the inner tube window and the outer tube window are aligned, the outer tube covers the inner tube window, or a condition therebetween.

3. The microdebrider of claim 1 , wherein the bias device is in communication with a bias member so that the bias member assists in retracting the bias device to a working position.

4. The microdebrider of claim 1 , wherein the inner tube is connected to an inner collet, a gear, or both that assists in rotating the inner tube.

5. The microdebrider of claim 1 , wherein the outer tube is connected to an outer collet.

6. The microdebrider of claim 5 , wherein the outer tube is rotatably connected to the outer collet so that a user can rotate the outer tube by rotating the outer collet.

7. The microdebrider of claim 5 , wherein the outer collet is a nosecone.

8. The microdebrider of claim 1 , wherein the lock selector has a window open position, a window closed position, or both.

9. The microdebrider of claim 1 , wherein the director moves the lock selector so that one or more of the two or more fingers contact the lock selector and immobilize the lock selector.

10. The microdebrider of claim 1 , wherein an intermediate tube is located between the inner tube and the outer tube.

Assignees

• Gyrus Acmi Inc

Inventors

• Flynn John P
• Teo Chee K
• Edwards Kevin C

Classifications

• A61B2017/00473

  Distal part, e.g. tip or head (A61B2017/00464 takes precedence) · CPC title

• A61B2017/320028

  with reciprocating movements · CPC title

• A61B17/1659

  Surgical rasps, files, planes, or scrapers · CPC title

• A61B17/3205 Primary

  Excision instruments · CPC title

• A61B2017/320004

  abrasive · CPC title