Surgical forceps and latching system

• US 10,456,191 B2
• Filed: 08/19/2015
• Issued: 10/29/2019
• Est. Priority Date: 08/20/2014
• Status: Active Grant

• Current Assignee: Gyrus ACMI, Inc. (Olympus Corporation)
• Original Assignee: Gyrus ACMI, Inc. (Olympus Corporation)
• Inventors: Batchelor, Kester J, Curtis, Richard J, Windgassen, Ryan J
• Primary Examiner(s): Della, Jaymi E
• Application Number:
  US14/829,725
• Publication Number:
  US 20160051273A1
• Time in Patent Office: 1,532 Days
• CPC Class Codes: A61B 17/2812 with a single pivotal connection A61B17/29 takes precedence
• CPC Class Codes: A61B 17/282 Jaws
• CPC Class Codes: A61B 17/2833 Locking means
• CPC Class Codes: A61B 17/295 combined with cutting implements
• CPC Class Codes: A61B 18/085 Forceps, scissors
• CPC Class Codes: A61B 18/1206 Generators therefor
• CPC Class Codes: A61B 18/1402 Probes for open surgery
• CPC Class Codes: A61B 18/1442 Probes having pivoting end effectors, e.g. forceps
• CPC Class Codes: A61B 2017/00411 actuated by application of energy from an energy source outside the body
• CPC Class Codes: A61B 2018/00273 Anchoring means for temporary attachment of a device to tissue
• CPC Class Codes: A61B 2018/00589 Coagulation
• CPC Class Codes: A61B 2018/00601 Cutting
• CPC Class Codes: A61B 2018/00607 Coagulation and cutting with the same instrument
• CPC Class Codes: A61B 2018/00946 slidable
• CPC Class Codes: A61B 2018/00958 for switching between different working modes of the main function
• CPC Class Codes: A61B 2018/1253 monopolar
• CPC Class Codes: A61B 2018/126 bipolar
• CPC Class Codes: A61B 2018/1412 Blade
• CPC Class Codes: A61B 2018/1455 having a moving blade for cutting tissue grasped by the jaws
• CPC Class Codes: A61B 2018/146 Scissors
• CPC Class Codes: A61B 2018/1462 : Tweezers

Abstract

A surgical forceps comprising: a first working arm and a second working arm configured to move towards and away from each other; and an electromagnetic latching system; wherein the electromagnetic latching system is configured to create a force that is in a direction aligned with closing of the forceps or opposite to the closing of the forceps when an electromagnetic activation button is depressed.

Claims

1. A surgical forceps comprising:

a first working arm and a second working arm configured to move in a direction that is towards each other and a direction away from each other, and the first working arm and the second working arm are movable in the direction towards each other or the direction away from each other, in a manner that creates a resilient moving force;

an electromagnetic latching system including two or more electromagnetic latches;

wherein the electromagnetic latching system is configured to create a force that is superimposed upon the resilient moving force, wherein the force comprises one or more of the following;

(i) the force biases the first working arm, the second working arm, or both in a direction of the resilient moving force;

or

(ii) the force biases the first working arm, the second working arm, or both in an opposite direction as the resilient moving force; and

wherein a bipolar current extends between the first working arm and the second working arm and the force is created when a first activation button is energized; and

wherein the electromagnetic latching system has fine adjustment by a first of the two or more electromagnetic latches creating the force and a second of the two or more electromagnetic latches creating one or more adjustable forces that are applied in a same direction, an opposite direction, or both as the force forming an adjusted force so that the adjusted force assists a user in moving the first working arm and the second working arm together or apart.

2. The surgical forceps of claim 1, wherein the surgical forceps are configured to measure impedance of tissue held between the first working arm and the second working arm and the force is based upon a measurement of the impedance of the tissue held between the first working arm and the second working arm.

3. The surgical forceps of claim 1, wherein the two or more electromagnetic latches are located in or on the first working arm, the second working arm, or both.

4. The surgical forceps of claim 1, wherein the two or more electromagnetic latches are only located on the first working arm and a magnetic material is located on the second working arm.

5. The surgical forceps of claim 3, wherein two one or more electromagnetic latches are connected to power from a power source so that when power is applied, each of the two or more electromagnetic latches create the force or the one or more adjustable forces so that the first working arm and second working arm are biased towards each other;

the first working arm and the second working arm are biased apart;

or both.

6. The surgical forceps of claim 5, wherein the two or more electromagnetic latches are two electromagnetic latches on the first working arm, the second working arm, or both.

7. The surgical forceps of claim 6, wherein the two or more electromagnetic latches are located on the first working arm, the second working arm, or both and the first electromagnetic latch has a constant magnetic field and the second electromagnetic latch has a variable magnetic field so that an amount of force required to move the first working arm and second working arm apart, together, or both is variable by a user.

8. The surgical forceps of claim 3, wherein the two or more electromagnetic latches are located on the first working arm, and a magnetic material is located on the second working arm, wherein the two or more electromagnetic latches are connected to power so that when the power is applied, the two or more electromagnetic latches create the force or the one or more adjustable forces and bias the first working arm and the second working arm.

9. The surgical forceps of claim 1, wherein the first working arm and the second working arm include a neutral position and when the first working arm and second working arm are moved towards each other the resilient moving force is created by the first working arm and the second working arm storing energy so that the first working arm and second working arm return to the neutral position.

10. The surgical forceps of claim 1, wherein a mechanical latch is located in or on the first working arm, the second working arm, or both and the mechanical latch connects the first working arm and the second working arm together so that the electromagnetic latching system can be turned off and the surgical forceps be retained in a closed position.

11. The surgical forceps of claim 1, wherein the first working arm and second working arm are free to move in the direction towards each other so as to grasp tissue therebetween when the electromagnetic latching system is not activated and energized, and the first working arm and second working arm are biased towards each other by the force when the electromagnetic latching system is activated and energized.

12. The surgical forceps of claim 1, wherein the force is adjusted by an adjustment element on the surgical forceps.

16. The surgical forceps of claim 1, wherein the resilient moving force is created by elasticity of the working arms elastically deforming to a neutral state.

13. A surgical forceps comprising:

a first working arm and a second working arm configured to move towards and away from each other; and

an electromagnetic latching system including two or more electromagnetic latches;

wherein the electromagnetic latching system is configured to create a force that is in a direction aligned with closing of the forceps or opposite to the closing of the forceps and a bipolar current that passes between the first working arm and the second working arm when an activation button is depressed and

wherein the electromagnetic latching system has fine adjustment by a first of the two or more electromagnetic latches creating the force and a second of the two or more electromagnetic latches creating one or more adjustable forces that are applied in a same direction, an opposite direction, or both as the force forming an adjusted force so that the adjusted force assists a user in moving the first working arm and the second working arm together or apart.

14. The surgical forceps of claim 13, wherein the force by the electromagnetic latching system opposes the closing of the forceps.

15. The surgical forceps of claim 13, wherein the force by the electromagnetic latching system is in a direction aligned with the closing of the forceps.

17. A surgical forceps comprising:

a first working arm and a second working arm configured to move in a direction that is towards each other and a direction away from each other and the first working arm and the second working arm are movable in the direction towards each other or the direction away from each other, in a manner that create a resilient moving force;

an electromagnetic latching system including two or more electromagnetic latches;

wherein the electromagnetic latching system is configured to create a force that latches the first working arm and second working arm;

wherein a bipolar current extends between the first working arm and the second working arm and the force is created when a first activation button is energized; and

wherein the electromagnetic latching system has fine adjustment by a first of the two or more electromagnetic latches creating the force and a second of the two or more electromagnetic latches creating one or more adjustable forces that are applied in a same direction, an opposite direction, or both as the force forming an adjusted force so that the adjusted force assists a user in moving the first working arm and the second working together or apart.

18. The surgical forceps of claim 17, wherein the resilient moving force is created by elasticity of the working arms elastically deforming to a neutral state.

19. The surgical forceps of claim 17, wherein the forceps include a dial that increases or decreases an amount or magnitude of the force applied by the two or more electromagnetic latches.