Surgical instrument for endoscopic and general surgery
First Claim
1. A surgical instrument for use in endoscopy comprising:
- a tubular member having a proximal end and a distal end;
an end effector pivotally attached directly to the distal end of the tubular member, the end effector comprising a first piece and a second piece;
linkage extending through the tubular member, the linkage comprising;
a first elongated member operably connected to the first end effector piece; and
a second elongated member operably connected to the second end effector piece; and
a handle attached to the proximal end of the tubular member, the handle comprising;
a first control means for causing translational movement of the first elongated member relative to the second elongated member, thereby causing the first end effector piece to pivot relative to the second end effector piece; and
a second control means independent of the first control means, the second control means for causing relative translational movement between the tubular member and both the first and second elongated members without significant relative translational movement between the first and second elongated members, thereby causing the first and second end effector pieces to pivot simultaneously in the same direction.
3 Assignments
0 Petitions
Accused Products
Abstract
A surgical instrument having a handle, barrel and working end effector tip is provided. The barrel is generally tubular, with one end being releasably connected to the handle. The end effector is movably attached to the other end of the barrel, and may be positioned and operated independently through multiple linkage members connected to a motive power source housed in or attached to the handle. The instrument is operated and controlled by a microprocessor and multidimensional controller or electrical contacts included in the handle. In the preferred embodiment, the end effector is scissor-like, but other end effectors such as graspers, clamps, dissectors or needle drivers, with appropriate operating and linkage members, may be attached to the handle.
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Citations
48 Claims
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1. A surgical instrument for use in endoscopy comprising:
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a tubular member having a proximal end and a distal end; an end effector pivotally attached directly to the distal end of the tubular member, the end effector comprising a first piece and a second piece; linkage extending through the tubular member, the linkage comprising; a first elongated member operably connected to the first end effector piece; and a second elongated member operably connected to the second end effector piece; and a handle attached to the proximal end of the tubular member, the handle comprising; a first control means for causing translational movement of the first elongated member relative to the second elongated member, thereby causing the first end effector piece to pivot relative to the second end effector piece; and a second control means independent of the first control means, the second control means for causing relative translational movement between the tubular member and both the first and second elongated members without significant relative translational movement between the first and second elongated members, thereby causing the first and second end effector pieces to pivot simultaneously in the same direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A surgical instrument for use in endoscopy comprising:
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a tubular member having a proximal end and a distal end; an end effector pivotally attached directly to the distal end of the tubular member, the end effector comprising a first piece and a second piece, each piece having a pinion at its proximal end; linkage extending through the tubular member, the linkage comprising; a first elongated member having, at its distal end, a rack for engaging the pinion of the first end effector piece, wherein relative movement between the first elongated member and the tubular member causes the first end effector piece to pivot; and a second elongated member having a rack at its distal end for engaging the pinion of the second end effector piece, wherein relative movement between the second elongated member and the tubular member causes the second end effector piece to pivot; and a handle attached to the proximal end of the tubular member, the handle comprising; a first control means for causing translational movement of the first elongated member relative to the second elongated member, thereby causing the first end effector piece to pivot relative to the second end effector piece; and a second control means independent of the first control means, the second control means for causing relative translational movement between the tubular member and both the first and second elongated members without significant relative translational movement between the first and second elongated members, thereby causing the first and second end effector pieces to pivot simultaneously in the same direction. - View Dependent Claims (38, 43, 44, 45, 46, 47)
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39. The surgical instrument according to claim 39, wherein the first and second elongated members each comprise:
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a proximal nut portion disposed within the handle; and a distal portion nonrotationally disposed primarily within the tubular member, the elongated member distal portions having screw threads at their proximal ends for releasably and operably coupling the elongated member distal portions to their respective proximal nut portions. - View Dependent Claims (40, 41, 42)
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48. An endoscopic surgical instrument comprising:
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a tubular member having a distal end and a proximal end; an end effector pivotally attached directly to the distal end of the tubular member, the end effector comprising a first piece and a second piece, each piece having an opening on its proximal end; linkage extending through the tubular member, the linkage comprising; a first elongated member having, at its distal end, a pin for engaging the opening in the first end effector piece, wherein relative movement between the first elongated member and the tubular member causes the first end effector piece to pivot; and a second elongated member having, at its distal end, a pin for engaging the opening in the second end effector piece, wherein relative movement between the second elongated member and the tubular member causes the second end effector piece to pivot; and a handle attached to the proximal end of the tubular member, the handle comprising; a first control means for causing translational movement of the first elongated member relative to the second elongated member, thereby causing the first end effector piece to pivot relative to the second end effector piece; and a first control means for causing relative translational movement between the first and second elongated members, thereby causing the first and second elongated members without significant relative translational movement between the first and second elongated members, thereby causing the first and second end effector pieces to pivot simultaneously in the same direction.
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Specification