Endoscopic hemostatic clipping apparatus
First Claim
1. An apparatus for applying clips to tissue, comprising:
- a clip chain formed of a plurality of clips connected to one another, each of the clips including a pair of opposed jaws biased toward an open configuration and a proximal end including a linking feature received between the jaws of an immediately proximal one the clips when the proximal one of the clips is in a closed configuration, the proximal one the clips, which receives the linking feature of the distal-most one of the clips between jaws thereof, having a first cross-sectional area larger than a second cross-sectional area of the distal-most one of the clips, which does not receive a linking feature between jaws thereof;
a control linkage extending between a distal end releasably coupled to a proximal-most one of the clips and a proximal end coupled to a control handle which, when the apparatus is in an operative position, remains accessible to a user to control a tension and compression applied to the clip chain via the control linkage; and
a magazine housing the clip chain and constraining the clips in the closed configuration, the magazine including a reduced cross-section portion at a distal end thereof smaller than the first cross-sectional are and larger than the second cross-sectional area to permit distal passage therethrough of only the distal-most one of the clips such that the jaws of the distal-most one of the clips revert to the open configuration to receive a target tissue therebetween.
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Accused Products
Abstract
An apparatus for applying clips to tissue, comprises a plurality of clips, each of the clips including a proximal end having a pair of opposed jaws and a distal end including a linking feature, where the clips are linked to one another to form a clip chain with a linking feature of a distal-most one of the clips being gripped between the jaws of an immediately proximal one of the clips and a control linkage coupled to a proximal-most one of the clips for applying tension and compression to the clip chain in combination with a magazine containing the clip chain, the magazine including an abutment surface sized to prevent passage distally therebeyond of a clip having received between its jaws a linking feature of an immediately distal clip and an opening location within which the jaws of a clip are permitted to open to release a linking feature therefrom.
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Citations
20 Claims
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1. An apparatus for applying clips to tissue, comprising:
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a clip chain formed of a plurality of clips connected to one another, each of the clips including a pair of opposed jaws biased toward an open configuration and a proximal end including a linking feature received between the jaws of an immediately proximal one the clips when the proximal one of the clips is in a closed configuration, the proximal one the clips, which receives the linking feature of the distal-most one of the clips between jaws thereof, having a first cross-sectional area larger than a second cross-sectional area of the distal-most one of the clips, which does not receive a linking feature between jaws thereof; a control linkage extending between a distal end releasably coupled to a proximal-most one of the clips and a proximal end coupled to a control handle which, when the apparatus is in an operative position, remains accessible to a user to control a tension and compression applied to the clip chain via the control linkage; and a magazine housing the clip chain and constraining the clips in the closed configuration, the magazine including a reduced cross-section portion at a distal end thereof smaller than the first cross-sectional are and larger than the second cross-sectional area to permit distal passage therethrough of only the distal-most one of the clips such that the jaws of the distal-most one of the clips revert to the open configuration to receive a target tissue therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for applying clips to tissue, comprising the steps of:
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inserting a magazine housing a clip chain to a target area within a body, the clip chain including a plurality of clips connected to one another, each of the clips including a pair of opposed jaws biased toward an open configuration and a proximal end including a linking feature, the magazine constraining the clips in a closed configuration such that the linking feature of a distal-most one of the clips is received between the jaws of an immediately proximal one the clips; applying a compression to the clip chain via a control linkage coupled to a proximal-most one of the clips in the clip chain by moving the clip chain distally relative to the magazine such that the distal-most one of the clips is pushed distally past a reduced cross-section portion at a distal end of the magazine such that the jaws thereof revert to the open configuration; positioning the jaws of the distal-most magazine over a target tissue; applying a tension to the clip chain via the control linkage by moving the clip chain proximally and drawing the distal-most one of the clips into the magazine to close the jaws of the distal-most one of the clips over the target tissue; and moving the clip chain farther proximally to separate the distal-most one of the clips from the immediately proximal one of the clips. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus for applying clips to tissue, comprising:
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a magazine housing a clip chain formed of a plurality of clips connected to one another, each of the clips including clips including a pair of opposed jaws biased toward an open configuration and a proximal end including a linking feature, the magazine constraining the clips in a closed configuration such that the linking feature of a distal-most one of the clips is received within the between the jaws of an immediately proximal one the clips, the immediately proximal-most one of the clips, which receive the linking feature of the distal-most one of the clips between jaws thereof, having a first cross-sectional area larger than a second-cross sectional area of the distal-most clip, which does not receive a linking feature between jaws thereof, the magazine including a reduced cross-section portion at a distal end thereof which is smaller than the first cross-sectional area and larger than the second cross-sectional area to permit distal passage therethrough of only the distal-most one of the clips such that the jaws of the distal-most one of the clips revert to the open configuration to receive a target tissue therebetween; and a control linkage extending between a distal end releasably coupled to a proximal-most one of the clips and a proximal end coupled to a control handle which, when the apparatus is in an operative position, remains accessible to a user to control a tension and compression applied to the clip chain via the control linkage.
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Specification