Surgical forceps

• US 6,106,542 A
• Filed: 01/23/1998
• Issued: 08/22/2000
• Est. Priority Date: 01/23/1998
• Status: Expired due to Fees

• Current Assignee: Microsurgical Laboratories Incorporated
• Original Assignee: Microsurgical Laboratories Incorporated
• Inventors: Fishman, Irving J., Toybin, Leonid, Grinshtein, Victor Avigdor
• Primary Examiner(s): Buiz, Michael
• Assistant Examiner(s): NGO, LIEN M
• Application Number:
  US09/012,668
• Time in Patent Office: 942 Days
• Field of Search: 606/205, 606/206, 606/207, 606/208, 606/209, 606/210, 606/138, 606/211, 606/131, 606/133, 606/51, 606/52, D28/155, D24/143, 81/142, 81/415, 433/159
• US Class Current: 606/205
• CPC Class Codes: A61B 17/062 Needle manipulators
• CPC Class Codes: A61B 17/2804 with two or more pivotal connections A61B17/29 takes precedence
• CPC Class Codes: A61B 17/282 Jaws
• CPC Class Codes: A61B 2090/034 abutting on parts of the device itself

Abstract

A surgical forceps adapted to grip tissue, blood vessels and walls of organs without causing injury thereto, and to further grasp suture needles without causing damage to the forceps. The surgical forceps is made of a light weight but strong material formed into two opposed branch arms joined at a proximate end and having springingly open opposing tips at a distal end. An alignment pin is attached to one of the branch arms and is located toward the distal end thereof. An alignment hole in the other branch arm is opposite the alignment pin and is comprised of a bushing made of a low friction material such as various types of plastics, NYLON™, TEFLON™ and the like. The alignment pin and bushing hole are located as close to the distal ends of the branch arms as physically practical. The alignment pin and bushing hole cooperate together in preventing the distal opposing tips from overlapping (misalignment). Stops are provided in a central portion of the branch arms to prevent excessive compression of the opposing tips which may result in misalignment thereof, tissue trauma or bowing. Platforms are provided proximate to the tips located at the distal ends of the branch arms of the forceps. The platforms are on opposing faces of the tips and distal portions of the branch arms, and are made from hard material. The platforms are adapted to allow a surgeon to grasp and withdraw a suture needle during surgery without damaging the delicate opposing tips normally used to grasp body tissues.

Claims

1. A surgical forceps assembly, comprising:

first and second branch arms joined at proximal ends thereof so that distal ends thereof are springingly biased apart;

first and second opposing tips, the first opposing tip at the distal end of the first branch arm, and the second opposing tip at the distal end of the second branch arm, wherein the first and second opposing tips are made of a first material;

first and second platforms located on inside faces of the first and second opposing tips and portions of the distal ends of the first and second branch arms proximal to the first and second tips, respectively, wherein the first and second platforms are adapted to grasp a suture needle, wherein the first and second platforms are made from a second material and the second material is harder than the first material;

an alignment pin attached perpendicular to a long axis of the first branch arm;

an alignment bushing having a hole therein is incorporated into the second branch arm;

the alignment pin and alignment bushing being positioned close to the distal ends of the first and second branch arms, and placed so as to engagingly cooperated together such that the alignment pin fits into the hole of the alignment bushing, wherein the first and second opposing tips cannot crossover each other; and

first and second stops on an inside face of a central portion of the first branch arm, the first and second stops limiting how close the first and second branch arms come together, whereby a certain pressure between the first and second tips is not exceeded.

2. The surgical assembly of claim 1, wherein the first and second branch arms are made of light and strong material.

3. The surgical forceps assembly of claim 1, wherein the first and second branch arms are made of titanium.

4. The surgical forceps assembly of claim 1, wherein the first and second platforms are made of tungsten carbide plate.

5. The surgical forceps assembly of claim 1, wherein the first and second platforms are made of a coating of tungsten carbide.

6. The surgical forceps assembly of claim 1, wherein the first and second platforms are made of hard stainless steel.

7. The surgical forceps assembly of claim 1, wherein the first and second platforms made of a coating of diamond.

8. The surgical forceps assembly of claim 1, wherein the first and second platforms are ceramic.

9. The surgical forceps assembly of claim 1, wherein the first and second platforms are made of epoxy.

10. The surgical forceps assembly of claim 1, wherein the alignment bushing is made of a low friction material.

11. The surgical forceps assembly of claim 1, wherein the alignment pin tip is beveled.

12. The surgical forceps assembly of claim 1, wherein the alignment pin tip is rounded.

13. The surgical forceps assembly of claim 1, wherein the alignment pin tip is tapered.

14. The surgical forceps assembly of claim 1, wherein the alignment bushing hole is beveled.

15. The surgical forceps assembly of claim 1, wherein the alignment bushing hole is rounded.

16. The surgical forceps assembly of claim 1, wherein the alignment bushing hole is tapered.

17. The surgical forceps assembly of claim 1, wherein the first and second opposing tips are ring shaped.

18. The surgical forceps assembly of claim 1, wherein the first and second opposing tips have at least one tooth.

19. The surgical forceps assembly of claim 1, wherein the first and second opposing tips have a plurality of teeth.

20. The surgical forceps assembly of claim 1, wherein the first and second opposing tips are serrated.

21. The surgical forceps assembly of claim 1, wherein the first and second opposing tips are flat.

26. The surgical forceps assembly of claim 1, wherein said first and second platforms are made from corrosion resistant material.

27. The surgical forceps assembly of claim 1, wherein the difference between the height of the first and second platforms and the height of the first and second opposing tips is smaller than about one half the diameter of the suture needle to be grasped.

22. A double action surgical forceps assembly, comprising:

first and second branch arms joined at proximal ends thereof so that distal ends thereof are springingly biased apart;

third and fourth branch arms rotatably attached together;

proximal ends of the third and fourth branch arms are rotatably attached to the distal ends of the first and second branch arms, wherein the first and second opposing tips are made of a first material;

first and second opposing tips, the first opposing tip at the distal end of the third branch arm, and the second opposing tip at the distal end of the fourth branch arm, wherein the first and second opposing tips are made of a first material;

first and second platforms located on insides faces of the first and second opposing tips and portions of the distal ends of the third and fourth branch arms proximal to the first and second tips, respectively, wherein the first and second platforms are adapted to grasp a suture needle, wherein the first and second platforms are made from a second material and the second material is harder than the first material; and

a stop on an inside face of the first branch arm toward the distal end thereof, the stop limiting how close the first and second branch arms come together, thereby limiting how close the third and fourth branch arms come together, whereby a certain pressure between the first and second tips is not exceeded.

23. The double action surgical forceps assembly of claim 22, wherein the third and fourth branch arms are rotatably attached equidistant between the proximal and distal ends thereof.

24. The double action surgical forceps assembly of claim 22, wherein the third and fourth branch arms are rotatably attached toward the distal ends thereof.

25. The double action surgical forceps assembly of claim 22, wherein the third and fourth branch arms are rotatably attached toward the proximal ends thereof.