Combination medical device

Patent metadata

Field	Value
Publication number	US-10595927-B2
Application number	US-201715667997-A
Country	US
Kind code	B2
Filing date	Aug 3, 2017
Priority date	Jan 9, 2015
Publication date	Mar 24, 2020
Grant date	Mar 24, 2020

Abstract

A combination medical includes a first arm and a second arm interconnected to the first arm. The first arm and the second arm are biased towards each other by a closing force. A biasing member is disposed between the first arm and the second arm. The biasing member has a first position that biases the first arm and the second arm away from each other against the closing force and a second position that does not oppose the closing force. The combination medical device may be an electrosurgical device with a mono-polar and bi-polar configuration.

First claim

What is claimed is:

1. A device comprising:
a first arm having a first distal end and a first proximate end;
a second arm having a second distal end and a second proximate end, the second arm interconnected to the first arm, wherein the first arm and the second arm are biased towards each other by a closing force;
a shuttle;
a biasing member disposed between the first arm and the second arm, the biasing member having a first position that provides an opening force that biases the first arm and the second arm away from each other against the closing force, and having a second position that does not oppose the closing force, the biasing member having a first connector pivotally connected to the first arm and a second connector pivotally connected to the second arm, and the first connector and the second connector are pivotally connected to the shuttle at a pivot point, the first connector having a first surface and the second connector having a second surface, and the first surface contacts the second surface when the biasing member is in the first position.

2. The device of claim 1 wherein the pivot point remains on a plane defined by the first arm and the second arm when the biasing member is in the first position and the second position and the shuttle is closer to the first and second proximate ends when in the first position than when in the second position.

3. The device of claim 1 wherein the pivot point remains on a plane defined by the first arm and the second arm when the biasing member is in the first position and the second position and the shuttle is closer to the first and second distal ends when in the first position than when in the second position.

4. The device of claim 1 further comprising a blade connected to the shuttle, the blade is extended past the first and second distal ends when the biasing member is in the second position and the blade does not extend past the first and second distal ends when the biasing member is in the first position.

5. The device of claim 4 wherein the blade is closer to the first and second proximate ends when in the first position than when in the second position.

6. The device of claim 5 wherein when the biasing member is in the first position, the blade is positioned between the first and second proximate ends and the first and second distal ends, and when the biasing member is in the second position, the blade is positioned past the first and second distal ends.

7. The device of claim 1 wherein the shuttle is not on a plane defined by the first arm and the second arm when the biasing member is in at least one of the first position and the second position.

8. The device of claim 1 wherein the first arm and the second arm are resilient and the first connector and the second connector are rigid.

9. The device of claim 1 wherein the first arm and the second arm are rigid and the first connector and the second connector are resilient.

10. The device of claim 1 wherein at least one of the first arm, the second arm, the first connector, and the second connector are resilient.

11. A forceps comprising:
a first arm;
a second arm interconnected to the first arm, wherein the first arm and the second arm have an open position and a closed position, and a closing force biases the first and second arms to the closed position;
a first connector pivotally connected to the first arm; and
a second connector pivotally connected to the second arm and pivotally connected to the first connector and to a shuttle at a center pivot point, the shuttle being moveable between a first position and a second position, and
the first connector and the second connector exerting a first opening force on the first arm and the second arm when the shuttle is in the first position, the first opening force being greater than the closing force when the shuttle is in the first position, and the first connector and the second connector exerting a second opening force on the first arm and the second arm when the shuttle is in the second position, the second opening force being less than the closing force when the shuttle is in the second position.

12. The forceps of claim 11 wherein the first connector is pivotally connected to the first arm by a pin connection.

13. The forceps of claim 11 wherein the first connector is pivotally connected to the first arm at a reduced cross-sectional area of the first connector.

14. The forceps of claim 11 wherein the first connector and the second connector are pivotally connected to each other at the center pivot point by a pin connection.

15. The forceps of claim 11 wherein the first connector includes a first surface proximate the center pivot point and the second connector includes a second surface proximate the center pivot point, and the first surface contacts the second surface when the center pivot point is in the first position.

16. The forceps of claim 11 wherein the shuttle is connected to the center pivot point and configured to move the center pivot point between the first position and the second position, and the first connector and the second connector are each pivotally connected to the shuttle by pin connections.

17. The forceps of claim 11 wherein the first connector and the second connector are pivotally connected to each other by reduced cross-sectional portions at the center pivot point.

18. A surgical tool comprising:
a first arm;
a second arm interconnected to the first arm, wherein the first arm and the second arm have an open position and a closed position;
a first connector having a first proximate end connected to the first arm and having a first distal end and a first stop surface at the first distal end, the first connector has a concave surface and a convex surface extended between the first distal end and the first proximate end; and
a second connector having a second proximate end connected to the second arm, having a second distal end connected to the first distal end of the first connector, and having a second stop surface at the second distal end, the second connector has a concave surface and a convex surface extended between the second distal end and the second proximate end, the first distal end and the second distal end are connected to a shuttle, the first stop surface contacts the second stop surface and the first and second arms are in the open position when the first member and the second member are in a first position, and the first stop surface does not contact the second stop surface and the first and second arms are in the closed position when the first member and the second member are in a second position.

19. The surgical tool of claim 18 wherein the first distal end is pivotally connected to the second distal end, and wherein the first distal end and the second distal end are pivotally connected to the shuttle.

20. The surgical tool of claim 18 further comprising a blade having a first end and a second end, the first end of the blade is connected to the shuttle and the second end of the blade is between the first arm and the second arm when the first member and the second member are in the first position, and the second end of the blade is extended past the first arm and the second arm when the first member and the second member are in the second position.

Assignees

• Gyrus Acmi Inc

Inventors

• Batchelor Kester J
• Curtis Richard J
• Windgassen Ryan J

Classifications

• A61B2018/00589

  Coagulation · CPC title

• A61B2018/00071

  Electrical conductivity · CPC title

• A61B17/00234

  for minimally invasive surgery (A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence) · CPC title

• A61B18/1442 Primary

  Probes having pivoting end effectors, e.g. forceps · CPC title

• A61B18/1445 Primary

  at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod · CPC title