Ultrasonic shears stop pad

• US 20090264909A1
• Filed: 04/17/2009
• Published: 10/22/2009
• Est. Priority Date: 04/18/2008
• Status: Abandoned Application

• Current Assignee: Jean Michael Beaupre
• Original Assignee: Jean Michael Beaupre
• Inventors: Beaupre, Jean Michael
• Application Number:
  US12/386,468
• Publication Number:
  US 20090264909A1
• Time in Patent Office: Days
• US Class Current: 606/169
• CPC Class Codes: A61B 17/320092 with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw
• CPC Class Codes: A61B 2017/320078 Tissue manipulating surface
• CPC Class Codes: A61B 2017/320094 additional movable means performing clamping operation

Abstract

An ultrasonic-surgical-shears stop pad has a stop-pad body including a base material and at least one filler material. An alternate ultrasonic-surgical-shears stop pad has a stop-pad body adjacent to tissue pad. An ultrasonic surgical shears includes an ultrasonic surgical blade and a clamping arm which is operable to open and close toward the blade and which has a transversely and resiliently flexible distal tip. An alternate ultrasonic surgical shears includes an ultrasonic surgical blade, a clamping arm operable to open and close toward the blade, and a stop pad attached to the clamping arm and having a blade contact surface, wherein at least a portion of the stop pad is resiliently flexible in a direction substantially perpendicular to the blade contact surface.

Claims

1. An ultrasonic-surgical-shears stop pad comprising:

an ultrasonic-surgical-shears stop pad adjacent to tissue pad.

2. The ultrasonic-surgical-shears stop pad of claim 1, wherein the at-least-one filler material has at least one property which has a different value from that of the at-least-one property of the base material, and wherein the at-least-one property is chosen from the group consisting of:

hardness, stiffness, lubricity, dynamic coefficient of friction, heat transfer coefficient, abradability, heat deflection temperature, and melt temperature.

3. The ultrasonic-surgical-shears stop pad of claim 1, wherein the base material has a heat deflection temperature greater than 500 degrees Fahrenheit.

4. The ultrasonic-surgical-shears stop pad of claim 1, wherein stop pad does not contact the blade simultaneous with tissue pad

5. The ultrasonic-surgical-shears stop pad of claim 1, wherein the surface of said stop pad contacting blade is not conformal to said blade

6. The ultrasonic-surgical-shears stop pad of claim 1, wherein the base material consists essentially of a thermoset plastic material.

7. The ultrasonic-surgical-shears stop pad of claim 6, wherein the base material consists essentially of a polyimide material.

8. An ultrasonic-surgical-shears stop pad and tissue pad comprising:

an ultrasonic-surgical-shears stop pad body includes a first material and wherein the tissue pad includes a second material which is a different material from the first material.

9. The ultrasonic-surgical-shears stop pad of claim 8, wherein the first region consists essentially of the first material and wherein the second region consists essentially of the second material.

10. The ultrasonic-surgical-shears stop pad of claim 8, wherein the first material has at least one property which has a different value from that of the second material, and wherein the at-least-one property is chosen from the group consisting of:

hardness, stiffness, lubricity, dynamic coefficient of friction, heat transfer coefficient, abradability, heat deflection temperature, and melt temperature.

11. The ultrasonic-surgical-shears stop pad of claim 8, wherein the first material has a heat deflection temperature greater than 500 degrees Fahrenheit.

12. The ultrasonic-surgical-shears stop pad of claim 8, wherein wherein the surface of said stop pad contacting blade is not conformal to said blade

13. The ultrasonic-surgical-shears stop pad of claim 8, wherein stop pad does not contact the blade simultaneous with tissue pad

14. The ultrasonic-surgical-shears stop pad of claim 8, wherein the first material consists essentially of a thermoset plastic material.

15. The ultrasonic-surgical-shears stop pad of claim 14, wherein the base material consists essentially of a polyimide material.

16. The ultrasonic-surgical-shears stop pad of claim 8, wherein the stop pad may flex

17. An ultrasonic surgical shears comprising:

a) an ultrasonic surgical blade;

b) a clamping arm operable to open and close toward the blade; and

c) a stop pad attached to the clamping arm and having a clamping surface, wherein at least a portion of the stop pad is resiliently flexible in a direction substantially perpendicular to the clamping surface.

18. The ultrasonic surgical shears of claim 17, wherein the stop pad comprises a stop pad body including a base material and at least one filler material, wherein the at-least-one filler material has at least one property which has a different value from that of the at-least-one property of the base material, and wherein the at-least-one property is chosen from the group consisting of:

hardness, stiffness, lubricity, dynamic coefficient of friction, heat transfer coefficient, abradability, heat deflection temperature, and melt temperature.

19. The ultrasonic surgical shears of claim 17, wherein the clamping arm comprises a tissue pad body and an adjacent stop pad, wherein the tissue pad is adapted to treat tissue and the stop pad is not adapted to treat tissue.