Apparatus for applying surgical clips
First Claim
Patent Images
1. Apparatus for applying hemostatic clips to tissue comprising:
- a body;
means associated with the body for storing a plurality of undeformed hemostatic clips having elongated, spaced-apart arms;
a pair of jaws at one end of the body for receiving, holding and deforming a clip, the jaws being movable relative to each other in their common plane to deform the clip by bringing the spaced-apart arms of the clip towards one another;
means for camming the jaws closed including first cam surface means associated with the body, second cam surface means associated with the jaws, and means for moving the first and second cam surface means relative to each other to cause the jaws to move towards one another in their common plane to deform a clip;
means for feeding one clip at a time from the means for storing to the jaws; and
actuating and sequencing means for sequentially actuating the means for feeding and the means for camming the jaws closed including a pair of handles movable between a first open position and a second closed position, movement of said handles from said first open position to said second closed position first causing the means for feeding to move a clip from the means for storing to the jaws and then causing the means for camming the jaws closed to move the jaws towards each other to close the clip.
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Abstract
Apparatus for applying surgical clips to tissue includes a self-contained supply of clips and is constructed to apply those clips, one at a time, through movement of the thumb and fingers of one hand. The clips are stored inside a sleeve along the length of the instrument, are fed into jaws at the distal end of the instrument, and are closed about tissue by a camming action produced by moving the jaws relative to the sleeve and camming them shut. An actuating and sequencing section controls feeding and clip deformation, and guarantees that the instrument is operated only in the proper sequence so as to avoid jamming.
688 Citations
35 Claims
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1. Apparatus for applying hemostatic clips to tissue comprising:
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a body; means associated with the body for storing a plurality of undeformed hemostatic clips having elongated, spaced-apart arms; a pair of jaws at one end of the body for receiving, holding and deforming a clip, the jaws being movable relative to each other in their common plane to deform the clip by bringing the spaced-apart arms of the clip towards one another; means for camming the jaws closed including first cam surface means associated with the body, second cam surface means associated with the jaws, and means for moving the first and second cam surface means relative to each other to cause the jaws to move towards one another in their common plane to deform a clip; means for feeding one clip at a time from the means for storing to the jaws; and actuating and sequencing means for sequentially actuating the means for feeding and the means for camming the jaws closed including a pair of handles movable between a first open position and a second closed position, movement of said handles from said first open position to said second closed position first causing the means for feeding to move a clip from the means for storing to the jaws and then causing the means for camming the jaws closed to move the jaws towards each other to close the clip. - View Dependent Claims (2, 3, 4, 15, 16, 17, 23, 32)
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5. Apparatus for applying hemostatic clips to tissue comprising:
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a body; means associated with the body for storing a plurality of undeformed hemostatic clips having elongated, spaced-apart arms; a pair of jaws at one end of the body which are movable towards each other in their common plane for deforming a clip by bringing the spaced-apart arms of the clip towards one another, the jaws having a first, spaced-apart position for receiving and holding a clip; means for camming the jaws closed including first cam surface means associated with the body, second cam surface means associated with the jaws, and means for moving the first and second cam surface means relative to each other to cause the jaws to move towards one another in their common plane to deform a clip; means for returning the jaws to their first, spaced-apart position after they have been cammed closed by the means for moving the cam surface means relative to each other; means for feeding one clip at a time from the means for storing to the jaws, the means moving from a first position to a second position as the clip is fed into the jaws; means for returning the means for feeding to its first position after the clip has been fed; and actuating and sequencing means for sequentially applying the plurality of hemostatic clips including a pair of handles movable between a first, open position and a second closed position, movement of said handles from said first open position to said second closed position causing the means for feeding to move from its first position to its second position to feed a clip into the jaws and causing the means for camming to close the jaws, movement of said handles from said second closed position to said first open position actuating the means for returning the jaws to their first, spaced-apart position and the means for returning the means for feeding to its first position after a clip has been deformed by the jaws. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 24, 25, 26, 27, 28)
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18. Apparatus for applying hemostatic clips to tissue comprising:
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a body including an elongated sleeve which extends along the distal-proximal axis of the apparatus; means within at least a portion of the sleeve for storing a plurality of undeformed hemostatic clips having elongated, spaced-apart arms, the means including first and second ratchets located adjacent to each other to form a space for the clips, the ratchets having teeth thereon for engagement with the clips, the teeth being directed into the space between the ratchets and facing towards the distal end of the apparatus; a pair of jaws at the distal end of the sleeve, the jaws having a first, spaced-apart position for receiving and holding a clip and being movable toward each other in their common plane for deforming a clip by bringing the spaced-apart arms of the clip towards one another; means for moving the first ratchet relative to the second ratchet from a first position to a second position to feed the clip closest to the jaws into the jaws and to index each of the clips remaining in the means for storing one tooth on the second ratchet closer to the jaws; means for camming the jaws closed including first cam surface means associated with the distal end of the sleeve, second cam surface means associated with the jaws, and means for moving the first and second cam surface means relative to each other to cause the jaws to move towards one another in their common plane to deform a clip; means for returning the jaws to their first, spaced-apart position after they have been cammed closed by the means for moving the cam surface means relative to each other; means for returning the first ratchet to its first position after the clip closest to the jaws has been fed and the remaining clips indexed; and actuating and sequencing means for sequentially applying the plurality of hemostatic clips including a pair of handles movable between a first open position and a second closed position, movement of said handles from said first open position toward said second closed position actuates in sequence first the means for moving the first ratchet from its first to its second position, and then the means for moving the first and second cam surface means relative to each other, movement of said handles from said second closed position to said first open position actuates in sequence first the means for returning the jaws to their first, spaced-apart position and then the means for returning the first ratchet to its first position after a clip has been deformed by the jaws. - View Dependent Claims (19, 20, 21, 22, 29, 30, 31)
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33. Hemostatic clip applying apparatus comprising:
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a body; a pair of jaws at one end of the body, the jaws having a first, spaced-apart position for receiving and holding a clip and being movable towards each other from the first, spaced-apart position for deforming a clip; a pair of arms carrying the jaws, the arms being movable towards each other and being spaced from each other, when unconstrained, by a distance such that the spacing between the jaws is less than the spacing between the jaws in the first, spaced-apart position; and means associated with the arms and the body for increasing the spacing between the arms to bring the jaws to their first, spaced-apart position. - View Dependent Claims (34, 35)
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Specification