Medical clip applier safety arrangement
First Claim
Patent Images
1. A method for dispensing a medical clip onto a mammalian body tissue comprising:
- arranging a pair of closable jaws to be supported on a stationary lower housing brace of an elongated medical clip dispensing device;
supporting said jaws between said housing brace and a movable cinch housing;
moving said cinch housing proximally with respect to said housing brace to permit said jaws to bias open with respect to one another;
pushing an open clip by an elongated pusher member into position between said jaws for receipt of said clip in an arrangement of shoulder tracks in an inner edge of each of said jaws;
moving said cinch housing distally with respect to said housing brace so as to pinch closed said jaws by a camming action between an outer edge of each of said jaws and an inner edge arrangement on inner side portions of said cinch housing, so as to crimp said clip onto a body tissue;
arranging a cam surface on the outer edge of each of the jaws to permit the jaws to be closed by sliding action of said cam surfaces on the jaws relative to a pair of cam edges on the cinch housing, during said moving said cinch housing distally with respect to said housing brace;
arranging a pin on an intermediate portion of each of said jaws;
arranging a pair of cam tracks in an inner surface of said cinch housing for slidable engagement with said pins on said jaws andbiasedly locking open the jaws by camming motion and receipt of the pins within a pocket in a distal end of the cam tracks in said inner surface of said cinch housing.
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Abstract
A medical clip dispenser apparatus for the pinching of a medical clip or staple about a portion of a mammalian body tissue. The apparatus comprises an elongated support beam having a distal end with a stationary lower housing thereon, and a distally movable hollow cinch slidably disposed on the lower housing. The cinch has a portion of a pair of closable jaws squeezably arranged therewithin. An elongated pusher has a generally cross-shaped pusher member on a distal end thereof in slidable engagement with the jaws, to keep the jaws apart from one another after a new clip has been pushed into position between the jaws.
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Citations
10 Claims
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1. A method for dispensing a medical clip onto a mammalian body tissue comprising:
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arranging a pair of closable jaws to be supported on a stationary lower housing brace of an elongated medical clip dispensing device; supporting said jaws between said housing brace and a movable cinch housing; moving said cinch housing proximally with respect to said housing brace to permit said jaws to bias open with respect to one another; pushing an open clip by an elongated pusher member into position between said jaws for receipt of said clip in an arrangement of shoulder tracks in an inner edge of each of said jaws; moving said cinch housing distally with respect to said housing brace so as to pinch closed said jaws by a camming action between an outer edge of each of said jaws and an inner edge arrangement on inner side portions of said cinch housing, so as to crimp said clip onto a body tissue; arranging a cam surface on the outer edge of each of the jaws to permit the jaws to be closed by sliding action of said cam surfaces on the jaws relative to a pair of cam edges on the cinch housing, during said moving said cinch housing distally with respect to said housing brace; arranging a pin on an intermediate portion of each of said jaws; arranging a pair of cam tracks in an inner surface of said cinch housing for slidable engagement with said pins on said jaws and biasedly locking open the jaws by camming motion and receipt of the pins within a pocket in a distal end of the cam tracks in said inner surface of said cinch housing. - View Dependent Claims (2, 3, 4, 5)
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6. A method for dispensing a medical clip from a clip dispensing device onto body tissue, the clip dispensing device having a pair of closable jaws supported on a stationary lower housing brace between the housing brace and a movable cinch housing, the clip dispensing device further having a pin on an intermediate portion of each of the jaws, a cam surface on an outer edge of each of the jaws, a pair of cam tracks in an inner surface of the cinch housing, the method comprising:
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moving the cinch housing proximally with respect to the housing brace to open the jaws; pushing, by a pusher, an uncrimped clip into position between the jaws for receipt of the clip; moving the cinch housing distally with respect to the housing brace to close the jaws by sliding engagement between the cam surface and inner side portions of the cinch housing, so as to crimp the clip onto the body tissue; slidably engaging a said pin in a respective cam track of the pair of cam tracks; and locking open the jaws by receipt of the pins in a pocket in a distal end of the cam tracks. - View Dependent Claims (7, 8, 9, 10)
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Specification