Surgical instrument with a dissecting tip
First Claim
Patent Images
1. A surgical instrument for cutting tissue comprising:
- a handle;
a first jaw operatively coupled to the handle and a second jaw operatively coupled to the handle, the first and second jaws movable relative to each other from an open position, for positioning tissue therebetween in a tissue grasping region, to a closed position, for approximating tissue, each jaw having a proximal end and a distal end, the first jaw and second jaw configured to form a tunnel when the first and second jaw are in the closed position;
a cutting element slidably movable in the tunnel such that at least a portion of the cutting element is locatable between a proximal position located proximal to the tissue grasping region, a distal position located distal to the tissue grasping region and outside the tunnel, and a central position located between the proximal position and the distal position; and
a dissecting tip formed by the distal ends of the first jaw and the second jaw, the dissecting tip configured to cover the cutting element when the cutting element is in the central position, the dissecting tip having a distal opening that communicates with the tunnel, the distal position of the cutting element being distal to the distal opening of the dissecting tip, whereby when the cutting element is moved to the distal position at least a section of the cutting element extends beyond the distal opening of the dissecting tip such that the cutting element can engage tissue.
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Accused Products
Abstract
A surgical instrument useful in harvesting blood vessels such as veins and arteries. The instrument has a pair of jaws and a central cutting element displaceable distally and proximally to dissect tissue contained between the jaws. The distal ends of the jaws form a dissecting tip.
445 Citations
11 Claims
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1. A surgical instrument for cutting tissue comprising:
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a handle;
a first jaw operatively coupled to the handle and a second jaw operatively coupled to the handle, the first and second jaws movable relative to each other from an open position, for positioning tissue therebetween in a tissue grasping region, to a closed position, for approximating tissue, each jaw having a proximal end and a distal end, the first jaw and second jaw configured to form a tunnel when the first and second jaw are in the closed position;
a cutting element slidably movable in the tunnel such that at least a portion of the cutting element is locatable between a proximal position located proximal to the tissue grasping region, a distal position located distal to the tissue grasping region and outside the tunnel, and a central position located between the proximal position and the distal position; and
a dissecting tip formed by the distal ends of the first jaw and the second jaw, the dissecting tip configured to cover the cutting element when the cutting element is in the central position, the dissecting tip having a distal opening that communicates with the tunnel, the distal position of the cutting element being distal to the distal opening of the dissecting tip, whereby when the cutting element is moved to the distal position at least a section of the cutting element extends beyond the distal opening of the dissecting tip such that the cutting element can engage tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of surgically cutting tissue, the method comprising the steps of:
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a. providing a surgical instrument, the instrument comprising;
a handle;
a first jaw operatively coupled to the handle and a second jaw operatively coupled to the handle, the first and second jaws movable relative to each other from an open position, for positioning tissue therebetween in a tissue grasping region, to a closed position, for approximating tissue, each jaw having a proximal end and a distal end, the first jaw and second jaw configured to form a tunnel when the first and second jaw are in the closed position;
a cutting element slidably movable in the tunnel such that at least a portion of the cutting element is locatable between a proximal position located proximal to the tissue grasping region, a distal position located distal to the tissue grasping region and outside the tunnel, and a central position located between the proximal position and the distal position; and
a dissecting tip formed by the distal ends of the first jaw and the second jaw, the dissecting tip configured to cover the cutting element when the cutting element is in the central position, the dissecting tip having a distal opening that communicates with the tunnel, the distal position of the cutting element being distal to the distal opening of the dissecting tip, whereby when the cutting element is moved to the distal position at least a section of the cutting element extends beyond the distal opening of the dissecting tip such that the cutting element can engage tissue;
b. moving the first jaw and the second jaw to the closed position;
c. moving the cutting element to the distal position; and
d. dissecting tissue with the cutting element.
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Specification
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Current AssigneeSorin Group USA Incorporated (LivaNova Plc)
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Original AssigneeEthicon Incorporated (Johnson & Johnson)
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InventorsHess, Christopher J., Schulze, Dale R., Knight, Gary W.
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Primary Examiner(s)PEFFLEY, MICHAEL F
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Application NumberUS10/191,184Publication NumberTime in Patent Office798 DaysField of Search606/41, 606/45, 606/46, 606/48-52, 606/170, 606/171, 606/205, 606/207US Class Current606/171CPC Class CodesA61B 18/1445 at the distal end of a shaf...A61B 2018/1412 BladeA61B 2018/1455 having a moving blade for c...A61B 90/70 Cleaning devices specially ...
