Blade positioning device

Patent metadata

Field	Value
Publication number	US-11234726-B2
Application number	US-201615153040-A
Country	US
Kind code	B2
Filing date	May 12, 2016
Priority date	Mar 12, 2013
Publication date	Feb 1, 2022
Grant date	Feb 1, 2022

Abstract

A microdebrider comprising: (a) a handpiece; (b) an interchangeable tip connected to the handpiece; (c) an outer tune 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, the interchangeable tip including:
i. an outer collet;
ii. an outer tube rotatably connected to the outer collet, the outer tube including an outer tube window located at a distal end of the outer tube;
iii. an inner tube extending at least partially through the outer tube, the inner tube including an inner tube window located at a distal end of the inner tube;

c. a lock selector connected to the inner tube; and
d. a depressible and rotatable bias device extending radially outward from the inner tube along a longitudinal axis that intersects the lock selector, the bias device engageable with the lock selector and operable to rotate the lock selector;
wherein depression of the bias device along the longitudinal axis causes engagement of the bias device with the lock selector, which in turn immobilizes the inner tube such 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; and
wherein rotation of the bias device around the longitudinal axis causes rotation of the lock selector, which in turn rotates the inner tube window such that the inner tube window and the outer tube window are aligned with each other, offset from each other, or a combination thereof.

2. The microdebrider of claim 1 , wherein the outer tube covers the inner tube window when the inner tube window and the outer tube window are offset from each other.

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 window is located distal of the outer collet.

6. The microdebrider of claim 5 , wherein 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, the outer tube is directly connected to the outer collet.

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 an intermediate tube is located between the inner tube and the outer tube.

10. A microdebrider comprising:
a. a handpiece;
b. an interchangeable tip connected to the handpiece, the interchangeable tip including:
i. an outer tube rotatably connected to the interchangeable tip, the outer tube including an outer tube window;
ii. an inner tube extending at least partially through the outer tube, the inner tube including an inner tube window;
iii. an outer collet connected to the outer tube, the outer tube window is located distal of the outer collet;
iv. an inner collet connected to the inner tube, the inner tube window is located distal of the inner collet;

c. a depressible and rotatable bias device extending radially outward from the inner tube along a longitudinal axis; and
d. a lock selector connected to the inner tube;
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;
wherein the outer collet is a nosecone;
wherein the bias device is rotatably connected to the lock selector; and
wherein depression of the bias device along the longitudinal axis causes engagement of the bias device with the lock selector and rotation of the bias device around the longitudinal axis causes rotation of the lock selector, which in turn rotates the inner tube window such that the inner tube window and the outer tube window are aligned with each other, offset from each other, or a combination thereof.

11. The microdebrider of claim 10 , wherein 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.

12. The microdebrider of claim 11 , wherein the bias device is in communication with a bias member so that the bias member assists in biasing the bias device into contact with the lock selector.

13. The microdebrider of claim 11 , 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.

14. The microdebrider of claim 10 , wherein the outer tube covers the inner tube window when the inner tube window and the outer tube window are offset from each other.

15. The microdebrider of claim 10 , further comprising a bias member for assisting in rotating the bias device.

16. The microdebrider of claim 10 , wherein the inner tube is connected to a gear that assists in rotating the inner tube.

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

18. The microdebrider of claim 10 , wherein the inner collet and the outer collet remain separate.

19. The microdebrider of claim 10 , wherein the bias device includes a gear.

20. The microdebrider of claim 10 , wherein the inner tube and the outer tube are coaxial.

Assignees

• Gyrus Acmi Inc

Inventors

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

Classifications

• A61B17/32002 Primary

  with continuously rotating, oscillating or reciprocating cutting instruments · CPC title

• A61B2090/0811

  for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument · CPC title

• A61B2017/00473

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

• A61B2017/320028

  with reciprocating movements · CPC title

• A61B2090/08021

  of the patient or his organs · CPC title