Endoscopic vascular clamping system and method
First Claim
1. A surgical clamp configured for introduction through a small percutaneous incision in the body for occluding a vessel in a body cavity, the surgical clamp comprising:
- first and second jaws having distal sand proximal ends, the proximal ends being coupled together such that the distal ends are movable between an open position where the first and second jaws are disposed apart and a closed position where the first and second jaws are disposed closer together, the first and second jaws including atraumatic surfaces on the first and second jaws configured to atraumatically occlude the vessel without damaging the vessel;
means at the proximal ends of the first and second jaws for releasably holding the clamp, the holding means including a spherical member;
first and second camming surfaces on the first and second jaws distal to the holding means configured so that sliding engagement of the camming surfaces in an axial direction opens and closes the first and second jaws; and
means for biasing the first and second jaws into the closed position.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention provides a system and method for performing less-invasive surgical procedures within a body cavity. In a preferred embodiment, the invention provides a system and method for temporarily occluding a blood vessel in an arterial graft in a thoracoscopic coronary artery bypass grafting procedure. The system comprises a clamp (2) and an introducer (1) for introducing the clamp through a percutaneous penetration into the body cavity and applying the clamp to a tissue structure such as a blood vessel. The clamp has a pair of movable jaws (65, 67) coupled to one another, each jaw having a distal portion for engaging the tissue structure and a proximal portion having a camming surface (66, 68). The introducer has a longitudinal shaft (3) with a clamp engaging member (25) slidably coupled to the distal end of the shaft for releasably holding the clamp. A handle (11) is coupled to the proximal end of the shaft. The handle can be manipulated to axially slide the shaft with respect to the clamp engaging member so that the shaft engages the camming surfaces of the clamp to open and close the distal portions of the jaws without releasing the clamp from the introducer.
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Citations
48 Claims
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1. A surgical clamp configured for introduction through a small percutaneous incision in the body for occluding a vessel in a body cavity, the surgical clamp comprising:
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first and second jaws having distal sand proximal ends, the proximal ends being coupled together such that the distal ends are movable between an open position where the first and second jaws are disposed apart and a closed position where the first and second jaws are disposed closer together, the first and second jaws including atraumatic surfaces on the first and second jaws configured to atraumatically occlude the vessel without damaging the vessel; means at the proximal ends of the first and second jaws for releasably holding the clamp, the holding means including a spherical member; first and second camming surfaces on the first and second jaws distal to the holding means configured so that sliding engagement of the camming surfaces in an axial direction opens and closes the first and second jaws; and means for biasing the first and second jaws into the closed position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 48)
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13. A surgical clamp comprising:
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a left wire member and a right wire member, said left wire member and said right wire member each comprising; a first segment having a first camming surface on an outer surface thereof and a second segment having a second camming surface on an outer surface thereof, said first segment being deflectably connected to said second segment, a first crossover segment extending from a distal end of said first segment and a second crossover segment extending from a distal end of said second segment, said first crossover segment and said second crossover segment crossing over one another in slidable relation, a first jaw segment extending from said first crossover segment and a second jaw segment extending from said second crossover segment, said first jaw segment of said left wire member and said first jaw segment of said right wire member combining to form a first jaw of said surgical clamp, and said second jaw segment of said left wire member and said second jaw segment of said right wire member combining to form a second jaw of said surgical clamp, whereby when a mutually inward force is applied to said first camming surface and said second camming surface, said first jaw and said second jaw are spread apart, and when said mutually inward force is released, said first jaw and said second jaw move toward one another. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for occluding a mammary artery in a chest cavity defined by a plurality of ribs within a patient comprising:
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introducing a surgical clamp releasably connected to an elongated shaft through a first percutaneous intercostal penetration between two ribs in the patient'"'"'s chest; viewing an internal portion of the patient'"'"'s chest through a scope extending through a second percutaneous intercostal penetration between two ribs in the patient'"'"'s chest; applying the clamp to the mammary artery to occlude a lumen of the mammary artery; and releasing the clamp from the shaft. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A method for occluding a vessel in a chest cavity defined by a plurality of ribs within a patient comprising:
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introducing a surgical clamp releasably held within an axial channel in an introducer through a percutaneous intercostal penetration between two ribs in the chest of the patient; positioning first and second jaws of the clamp around the vessel; sliding the clamp axially relative to the channel to extend the clamp distally therefrom thereby closing the jaws onto the vessel; and releasing the clamp front the introducer. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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Specification