Surgical instruments

• US 20090030437A1
• Filed: 07/27/2007
• Published: 01/29/2009
• Est. Priority Date: 07/27/2007
• Status: Active Grant

• Current Assignee: Cilag Gmbh International (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Inventors: O'Neil, Michael J., Houser, Kevin L., Price, Daniel W., Robertson, Galen C., Muir, Stephanie J., Boyd, William D., DeLuca, Louis T.
• Granted Patent: US 8,808,319 B2
• Time in Patent Office: Days
• US Class Current: 606/169
• CPC Class Codes: A61B 10/06 Biopsy forceps , e.g. with cup-shaped jaws
• CPC Class Codes: A61B 17/32002 with continuously rotating, oscillating or reciprocating cutting instruments
• 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 17/32053 Punch like cutting instruments, e.g. using a cylindrical or oval knife A61B17/326 takes precedence; trepans A61B17/1695; for use on the cornea A61F9/007
• CPC Class Codes: A61B 18/1442 Probes having pivoting end effectors, e.g. forceps
• CPC Class Codes: A61B 2017/00128 related to intensity or progress of surgical action
• CPC Class Codes: A61B 2017/2944 Translation of jaw members
• CPC Class Codes: A61B 2017/320008 Scrapers
• CPC Class Codes: A61B 2017/32004 having a laterally movable cutting member at its most distal end which remains within the contours of said end
• CPC Class Codes: A61B 2017/320064 with tissue or sample retaining means
• CPC Class Codes: A61B 2017/320075 single edge blade, e.g. for cutting
• CPC Class Codes: A61B 2017/320078 Tissue manipulating surface
• CPC Class Codes: A61B 2017/32008 preventing clogging of suction channel
• CPC Class Codes: A61B 2017/320093 additional movable means performing cutting operation
• CPC Class Codes: A61B 2017/320094 additional movable means performing clamping operation
• CPC Class Codes: A61B 2017/320095 with sealing or cauterizing means
• 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 2018/00642 with feedback, i.e. closed loop control
• CPC Class Codes: A61B 2018/1452 : including means for cutting A61B2018/146 takes precedence
• CPC Class Codes: A61B 2217/005 : with suction drainage system
• CPC Class Codes: A61B 2560/02 : Operational features
• CPC Class Codes: A61L 2/07 : Steam
• CPC Class Codes: A61L 2/081 : Gamma radiation
• CPC Class Codes: A61L 2/082 : X-rays
• CPC Class Codes: A61L 2/087 : Particle radiation, e.g. electron-beam, alpha or beta radiation
• CPC Class Codes: A61L 2/206 : Ethylene oxide
• CPC Class Codes: A61N 7/00 : Ultrasound therapy lithotripsy A61B17/22, A61B17/225; massage using supersonic vibration A61H23/00 ; using ultrasound for introducing media into the body A61M37/0092
• CPC Class Codes: Y10T 29/49716 : Converting

Abstract

A surgical device. The surgical device may comprise a transducer configured to provide vibrations along a longitudinal axis and an end effector coupled to the transducer and extending from the transducer along the longitudinal axis. The surgical device also may comprise a lower jaw extending parallel to the end effector. The lower jaw may comprise a clamp face extending toward the longitudinal axis. Also, the lower jaw may be slidable relative to the end effector to bring the clamp face toward a distal end of the end effector.

Claims

1. A surgical device comprising:

a transducer configured to provide vibrations along a longitudinal axis;

an end effector coupled to the transducer and extending from the transducer along the longitudinal axis; and

a lower jaw extending parallel to the end effector, the lower jaw comprising a clamp face extending toward the longitudinal axis, wherein the lower jaw is slidable relative to the end effector to bring the clamp face toward a distal end of the end effector.

2. The surgical device of claim 1, further comprising a clamp pad positioned between the clamp face and the end effector.

3. The surgical device of claim 1, further comprising a sheath positioned around at least a portion of the end effector.

4. The surgical device of claim 1, wherein the end effector comprises a waveguide.

5. The surgical device of claim 1, wherein the end effector defines a central lumen.

6. The surgical device of claim 5, wherein the end effector further comprises at least one member extended across at least a portion of the central lumen at about the distal end of the end effector.

7. The surgical device of claim 6, wherein the at least one member comprises two members and wherein the two members intersect one another at a right angle.

8. The surgical device of claim 6, wherein the at least one member comprises a wire.

9. The device of claim 6, wherein the at least one member extends proximally through the central lumen.

10. The device of claim 9, wherein the at least one member extends proximally through the central lumen in a direction that is not parallel to the longitudinal axis.

11. The device of claim 9, wherein the at least one member comprises a first section and a second section, wherein the first section is positioned at a first angle relative to the longitudinal axis, and wherein the second section is positioned at a second angle relative to the longitudinal axis.

12. The device of claim 11, wherein the first angle is larger than the second angle.

13. The device of claim 5, wherein the clamp face comprises a plug feature extending toward the distal end of the end effector, wherein the plug feature is at least partially received into the central lumen when the clamp face is brought toward the distal end of the end effector.

14. The device of claim 13, wherein the plug feature has a cross-sectional area smaller than the cross-sectional area of the lumen.

15. The device of claim 1, wherein the end effector comprises a distal portion and a proximal portion, and wherein the distal portion and the proximal portion are coupled.

16. The device of claim 15, wherein the distal portion and the proximal portion are coupled by at least one method selected from the group consisting of press fitting, welding, brazing, adhesive bonding, and threading.

17. The device of claim 1, wherein the lower jaw defines a lumen having an opening at a distal portion of the lower jaw.

18. The device of claim 17, wherein the end effector defines a cavity configured to at least partially cover the opening when the clamp face is brought toward the distal end of the end effector.

19. The device of claim 18, wherein the end effector comprises at least one cutting member positioned within the cavity.

20. The device of claim 17, wherein the opening is positioned within a well, defined by the lower jaw, and wherein the end effector is configured to at least partially cover the well when the clamp face is brought toward the distal end of the end effector.

21. The device of claim 1, wherein the end effector is stationary while the lower jaw slides proximally relative to the end effector.

22. The device of claim 1, wherein the lower jaw is stationary while the end effector slides distally relative to the lower jaw.

23. The device of claim 22, further comprising a frame member coupled to the end effector, wherein the frame member defines at least one slot, wherein the end effector comprises at least one pin configured to be received by the at least one slot, and wherein the slot is oriented to exert a torque on the end effector as it slides distally.

24. A method for processing a surgical device for surgery, comprising:

obtaining the surgical device of claim 1;

detaching the lower jaw extending parallel to the end effector; and

performing one of the following actions;

reforming at least one of the clamp face of the lower jaw, resterilizing the lower jaw extending parallel to the end effector, reattaching the resterilized lower jaw extending parallel to the end effector;

or attaching another sterilized lower jaw extending parallel to the end effector.

25. A surgical device comprising:

an end effector extending along a longitudinal axis;

a motor coupled to the end effector to rotate the end effector about the longitudinal axis; and

a lower jaw extending parallel to the end effector, the lower jaw comprising a clamp face extending toward the longitudinal axis, wherein the lower jaw is slidable relative to the end effector to bring the clamp face toward a distal end of the end effector.

26. The surgical device of claim 25, further comprising a transducer configured to provide vibrations along the longitudinal axis.

27. The surgical device of claim 25, wherein the end effector comprises a waveguide.

28. The surgical device of claim 25, wherein the end effector defines a central lumen.

29. A method for processing a surgical device for surgery, comprising:

obtaining the surgical device of claim 25;

detaching the motor coupled to the end effector to rotate the end effector about the longitudinal axis; and

performing one of the following actions;

replacing the motor;

resterilizing the motor and replacing the resterilized motor to the end effector;

or attaching another sterilized motor to the end effector.

30. A surgical device comprising an end effector, the end effector comprising a hollow portion defining a central lumen and at least one member extended across at least a portion of the central lumen at about a distal end of the end effector.

31. The surgical device of claim 30, wherein the at least one member comprises two members and wherein the two members intersect one another.

32. The surgical device of claim 31, wherein the at least one member comprises a wire.

33. The device of claim 31, wherein the at least one member extends proximally through the central lumen.

34. The device of claim 33, wherein the at least one member extends proximally through the central lumen in a direction that is not parallel to the longitudinal axis.

35. The device of claim 33, wherein the at least one member comprises a first section and a second section, wherein the first section is positioned at a first angle relative to the longitudinal axis, and wherein the second section is positioned at a second angle relative to the longitudinal axis.

36. The device of claim 35, wherein the first angle is larger than the second angle.

37. The device of claim 30, further comprising a transducer configured to provide vibrations along a longitudinal axis of the device, wherein the transducer is coupled to the end effector.

38. The device of claim 30, wherein the end effector comprises a waveguide.

39. The device of claim 30, wherein the hollow portion extends distally beyond the at least one member.

40. The device of claim 30, wherein the at least one member extends distally beyond the hollow portion.

41. A method for processing a surgical device for surgery, comprising:

obtaining the surgical device of claim 30;

cleaning the central lumen of the surgical device;

verifying the integrity of the at least one member;

sterilizing the surgical device; and

storing the surgical device in a sterile container.

42. A surgical device comprising:

a central instrument configured to engage tissue;

an outer sheath surrounding the central instrument, wherein the central instrument is slidable relative to the outer sheath, and wherein the outer sheath comprises a distal edge configured to clamp the tissue when the central instrument is slid to a position proximal from the distal edge of the outer sheath.

43. The device of claim 42, wherein the central instrument further comprises a transducer configured to provide vibrations along a longitudinal axis of the device, and an end effector coupled to the transducer and extending from the transducer along the longitudinal axis.

44. The device of claim 42, further comprising an ultrasonic transducer positioned to ultrasonically activate the outer sheath.

45. The device of claim 42, wherein the central instrument further comprises:

a clamp arm pivotable toward the end effector.

46. The device of claim 42, wherein the end effector defines a cavity open at a distal end of the end effector.

47. The device of claim 42, wherein the distal edge of the outer sheath is configured to contract when the central instrument is slid to a position proximal from the distal edge of the outer sheath to clamp the tissue.

48. The device of claim 42, wherein the distal edge of the outer sheath comprises a plurality of jaw members, wherein the plurality of jaw members are pivotable toward one another.

49. A method for processing a surgical device for surgery, comprising:

obtaining the surgical device of claim 42;

disassembling the central instrument from the outer sheath;

sterilizing the surgical device; and

storing the surgical device in a sterile container.

50. A surgical device comprising:

a transducer configured to energize an end effector, wherein the end effector is coupled to the transducer;

a trigger actuatable to cause the end effector to be energized;

a sensor positioned to sense a force exerted on the trigger; and

a control circuit in communication with the sensor, wherein the control circuit is configured to increase power delivered to the end effector by the transducer in response to an increase of the force exerted on the trigger.

51. The surgical device of claim 50, wherein the transducer is configured to be inactive until the force exerted on the trigger reaches a predetermined threshold.

52. The surgical device of claim 50, further comprising a feedback device in communication with the control circuit, wherein the feedback device is configured to indicate power delivered to the end effector.

53. The surgical device of claim 52, wherein the control circuit is configured to delay a predetermined amount of time between indicating a change in power delivered to the end effector and increasing the power delivered to the end effector by the transducer.

54. The surgical device of claim 52, further comprising a light source, wherein the light source indicates an amount of power delivered to the end effector by the transducer.

55. The surgical device of claim 52, further comprising a speaker configured to generate an audible signal indicating an amount of power delivered to the end effector by the transducer.

56. The surgical device of claim 52, wherein the device is configured to provide an audible signal as the force exerted on the trigger increases.

57. The surgical device of claim 50, wherein the control circuit is configured not to exceed a predetermined power delivered to the end effector by the transducer.

58. The surgical device of claim 50, further comprising a clamp arm pivotable toward the end effector about a pivot point.

59. The surgical device of claim 58, wherein the trigger is actuatable to pivot the clamp arm about the pivot point.

60. A method for processing a surgical instrument for surgery, comprising:

obtaining the surgical device of claim 50;

sterilizing the surgical device; and

storing the surgical device in a sterile container.

61. A surgical device comprising:

a transducer configured to energize an end effector, wherein the end effector is coupled to the transducer;

a trigger actuatable to cause the end effector to be energized;

a sensor positioned to sense a position of the trigger; and

a control circuit in communication with the sensor, wherein the control circuit is configured to increase power delivered to the end effector by the transducer in response to a change in the position of the trigger.