Surgical instrument with jaws and movable internal needle and method for use thereof

• US 5,919,202 A
• Filed: 05/01/1997
• Issued: 07/06/1999
• Est. Priority Date: 12/05/1989
• Status: Expired due to Fees

• Current Assignee: Inbae Yoon
• Original Assignee: Inbae Yoon
• Inventors: Yoon, InBae
• Primary Examiner(s): Buiz, Michael
• Assistant Examiner(s): Shai, Daphna
• Application Number:
  US08/847,190
• Time in Patent Office: 796 Days
• Field of Search: 606/205, 606/207, 606/151, 606/170, 606/142, 606/144, 606/139, 606/149, 606/148, 606/167
• US Class Current: 606/170
• CPC Class Codes: A61B 10/02 Instruments for taking cell samples or for biopsy A61B10/0038 and A61B10/0045 take precedence; needle locating or guiding means A61B17/3403; samplers for enzymology or microbiology C12M1/26; sampling or preparing biological specimens G01N33/48
• CPC Class Codes: A61B 10/06 Biopsy forceps , e.g. with cup-shaped jaws
• CPC Class Codes: A61B 17/12013 for use in minimally invasive surgery, e.g. endoscopic surgery
• CPC Class Codes: A61B 17/122 Clamps or clips , e.g. for the umbilical cord for the vas deferens A61F6/206
• CPC Class Codes: A61B 17/1285 for minimally invasive surgery
• CPC Class Codes: A61B 17/282 Jaws
• CPC Class Codes: A61B 17/29 Forceps for use in minimally invasive surgery
• CPC Class Codes: A61B 17/295 combined with cutting implements
• CPC Class Codes: A61B 17/30 Surgical pincettes without pivotal connectionsfor holding suture needles or materials A61B17/0483; wound clamps A61B17/08 ; hand-held gripping tools without pivotal connections in general B25B9/02
• CPC Class Codes: A61B 17/320016 Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes A61B10/0233, A61B17/29, A61B17/3207 take precedence
• CPC Class Codes: A61B 17/3201 Scissors for biopsy A61B10/02
• CPC Class Codes: A61B 17/34 Trocars; Puncturing needles pointed biopsy instruments A61B10/0233; devices for piercing the ear-lobes A44C7/001; seals or hemostasis valves A61M39/06
• CPC Class Codes: A61B 17/3417 Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating syringe needles A61M5/32; dilators A61M29/00
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 17/3474 Insufflating needles, e.g. Veress needles
• CPC Class Codes: A61B 17/3478 Endoscopic needles, e.g. for infusion biopsy needles A61B10/0233; catheters with injection needles A61M25/0067
• CPC Class Codes: A61B 18/1442 Probes having pivoting end effectors, e.g. forceps
• CPC Class Codes: A61B 2017/00353 one mechanical instrument performing multiple functions, e.g. cutting and grasping
• CPC Class Codes: A61B 2017/0046 with a releasable handle; with handle and operating part separable
• CPC Class Codes: A61B 2017/2825 Inserts of different material in jaws
• CPC Class Codes: A61B 2017/2923 : Toothed members, e.g. rack and pinion
• CPC Class Codes: A61B 2017/2931 : with releasable head
• CPC Class Codes: A61B 2017/2937 : with flexible part
• CPC Class Codes: A61B 2017/2943 : Toothed members, e.g. rack and pinion
• CPC Class Codes: A61B 2017/303 : with four or more legs
• CPC Class Codes: A61B 2017/3445 : used as instrument channel for multiple instruments
• CPC Class Codes: A61B 2018/00196 : reciprocating lengthwise
• CPC Class Codes: A61B 2018/00392 : Transmyocardial revascularisation
• CPC Class Codes: A61B 2018/00404 : Blood vessels other than those in or around the heart
• CPC Class Codes: A61B 2018/00601 : Cutting
• CPC Class Codes: A61B 2018/00982 : combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes
• 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 2018/1425 : Needle
• CPC Class Codes: A61B 2018/1455 : having a moving blade for cutting tissue grasped by the jaws
• CPC Class Codes: A61B 2018/1457 : having opposing blades cutting tissue grasped by the jaws, i.e. combined scissors and pliers
• CPC Class Codes: A61B 2217/005 : with suction drainage system
• CPC Class Codes: A61B 2218/002 : Irrigation
• CPC Class Codes: A61B 2218/007 : Aspiration
• CPC Class Codes: A61B 90/361 : Image-producing devices, e.g. surgical cameras
• CPC Class Codes: A61F 6/20 : Vas deferens occluders; Fallopian occluders
• CPC Class Codes: A61F 6/206 : Clamps ligaturing clamps or clips A61B17/122

Abstract

A surgical instrument includes a forceps unit for being positioned within an anatomical cavity and inner member having a needle on a distal end thereof. The forceps unit includes a housing, an outer tubular member, an intermediate member, and a handle mechanism coupled with at least one of the intermediate and outer tubular members for creating relative movement between the intermediate and outer tubular members. The intermediate member has a tubular body disposed telescopically within the outer tubular member, a proximal end mounted on the housing and an integral one-piece distal end defining a pair of opposed jaws resiliently biased apart such that relative movement of the outer tubular member distally over the jaws causes the jaws to close. The inner member includes a tubular member slidably disposed at least partly within the intermediate member and carrying a needle for performing at least one of the functions of manipulating, dissecting, collecting tissue for biopsy, penetrating tissue, injecting fluids, creating suction, aspirating, irrigating, and cauterizing, or the like.

Claims

1. A surgical instrument comprising

a tubular outer member having a proximal end and a distal end;

an intermediate member having a tubular body disposed telescopically within said outer member, a proximal end and a distal end defining a pair of opposed jaws;

an inner member slidably disposed at least partly within said intermediate member and comprising a shaft and a needle on a distal end of said shaft; and

a handle coupled with at least one of said intermediate and outer members and configured to move said jaws between open and closed positions when said distal end of said outer member is moved relative to said jaws.

2. An instrument as recited in claim 1 wherein said jaws define opposed grasping surfaces.

3. An instrument as recited in claim 2 wherein a longitudinal groove is formed in one of said grasping surfaces.

4. An instrument as recited in claim 3 wherein said longitudinal groove extends part way along said one of said grasping surfaces to define a stop limiting distal movement of said shaft and said needle.

5. An instrument as recited in claim 3 wherein said longitudinal groove comprises a shallow portion and a deep portion and a transition between said shallow portion and said deep portion defines a stop limiting distal movement of said shaft and said needle.

6. An instrument as recited in claim 3 wherein said longitudinal groove extends along an entire length of said grasping surface to define an aperture at a distal end of one of said jaws.

7. An instrument as recited in claim 6 wherein said longitudinal groove comprises a shallow portion and a deep portion and a transition between said shallow portion and said deep portion defines a stop limiting distal movement of said shaft and said needle.

8. An instrument as recited in claim 2 wherein a longitudinal groove is formed in each of said opposed grasping surfaces.

9. An instrument as recited in claim 8 wherein said longitudinal grooves extend part way along said grasping surfaces to define a pair of stops limiting distal movement of said shaft and said needle.

10. An instrument as recited in claim 9 wherein each of said longitudinal grooves comprise a shallow portion and a deep portion and a transition between said shallow portion and said deep portion defines a stop limiting distal movement of said shaft and said needle.

11. An instrument as recited in claim 8 wherein said longitudinal grooves extend along entire lengths of said grasping surfaces to define an aperture at a distal end of said jaws.

12. An instrument as recited in claim 1 and further comprising cam members disposed on outer surfaces of said jaws.

13. An instrument as recited in claim 1 wherein said jaws include opposed arcuate portions defining an opening between said jaws.

14. An instrument as recited in claim 1 wherein one of said jaws is fixed parallel to a longitudinal axis of said intermediate member and the other of said jaws is movable.

15. An instrument as recited in claim 1 wherein said needle is coaxial with said shaft.

16. An instrument as recited in claim 1 wherein said needle is offset from a central longitudinal axis of said shaft.

17. An instrument as recited in claim 1 wherein said shaft is hollow, a distal end of said shaft is open and said needle is solid.

18. An instrument as recited in claim 1 wherein said shaft is hollow, a distal end of said shaft is sealed and said needle is hollow and extends from an opening in said closed distal end of said shaft.

19. An instrument as recited in claim 1 wherein a groove is formed in at least one of said jaws, said needle is mounted on a plate and said plate configured to slide along said groove when said jaws are closed.

20. An instrument as recited in claim 1 further comprising;

safety means for locking said inner member to prevent movement of said inner member relative to said outer member.

21. An instrument as recited in claim 1 wherein said inner member further comprises valve means at a proximal end for controlling passage through said inner member.

22. An instrument as recited in claim 1, wherein said jaws are formed as one piece integrally with said distal end.

23. A method of performing surgical procedures comprising the steps of

introducing a tubular member having jaws formed thereon through an opening in an anatomical cavity wall;

grasping anatomical tissue with said jaws;

advancing an inner member having a needle thereon distally through said tubular member; and

performing a medical procedure with said needle.

24. A method as recited in claim 23 wherein said performing step includes the step of using said needle to perform at least one of the functions of cauterizing, penetrating, injecting, manipulating, creating suction, dissecting, irrigating and aspirating.

25. A method as recited in claim 23 wherein said introducing step includes closing said jaws by sliding a tubular outer member over at least a portion of said jaws.

26. A method as recited in claim 25 wherein said grasping step includes sliding the outer member proximally with respect to the jaws to permit said jaws to resiliently separate, positioning the anatomical tissue between the jaws and sliding the outer member distally with respect to the jaws to close said jaws around the anatomical tissue.

27. A method of performing surgical procedures comprising the steps of

introducing a tubular member having jaws formed thereon through an opening in an anatomical cavity wall;

advancing an inner member comprising a shaft with a needle thereon distally through the tubular member until said needle protrudes distally from the jaws; and

performing a medical procedure with said needle.

28. A method as recited in claim 27 wherein said performing step includes using said needle to perform at least one of the functions of cauterizing, penetrating, injecting, dissecting, manipulating, creating suction, irrigating and aspirating.

29. A method as recited in claim 27 wherein said introducing step includes closing said jaws by sliding a tubular outer member distally with respect to the jaws and said advancing step includes the step of moving the needle along a groove formed in the jaws.

30. A surgical instrument comprising

a tubular outer member having a proximal end and a distal end, a channel being defined through said outer member;

an intermediate member having a body disposed at least partly within said outer member, a proximal end and a distal end having a pair of opposed jaws;

an inner member slidably disposed at least partly within said channel and comprising a shaft and a needle on a distal end of said shaft; and

a handle coupled with at least one of said intermediate and outer members and configured to move said jaws between open and closed positions.

31. An instrument as recited in claim 30, wherein said intermediate member extends through said channel and a passage is defined through said intermediate member.