TERMINATION DEVICES AND RELATED METHODS
First Claim
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1. A knot pusher for advancing a knot in a tether, the knot pusher comprising:
- an elongated member;
a first coupling member slidably coupled to the elongated member;
a second coupling member fixedly coupled to the elongated member, wherein at least a portion of the second coupling member extends distally of the elongated member;
a first bearing; and
a second bearing distal of the first bearing,wherein the first and second bearings are fixedly coupled to the first coupling member and slidably coupled to the second coupling member.
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Abstract
Devices, methods and kits for forming and/or advancing one or more knots in a tether (e.g., during a tissue modification procedure) are described. In some variations, a tether may be used to gather or compress tissue by bringing two pieces or sections of the tissue together. The tether, which may be under tension, may then be locked to maintain the tension (e.g., by forming one or more knots in the tether). In some variations, an open knot may be advanced along a tether before being converted into a closed knot. The devices, methods and/or kits may be used, for example, in minimally invasive procedures.
23 Citations
20 Claims
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1. A knot pusher for advancing a knot in a tether, the knot pusher comprising:
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an elongated member; a first coupling member slidably coupled to the elongated member; a second coupling member fixedly coupled to the elongated member, wherein at least a portion of the second coupling member extends distally of the elongated member; a first bearing; and a second bearing distal of the first bearing, wherein the first and second bearings are fixedly coupled to the first coupling member and slidably coupled to the second coupling member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of tying a knot in a tether coupled to body tissue using a knot pusher comprising first and second bearings and a coupling member slidably coupled to the first and second bearings, the method comprising:
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winding a portion of the tether around the first and second bearings to form an open knot in the tether; advancing the knot pusher distally to advance the open knot distally; withdrawing the coupling member from the first and second bearings; and forming a closed knot from the open knot after the coupling member has been withdrawn from the first and second bearings. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification