Suture knot pusher
OwnerLeo B. Tuasoninventor
Life of this patent
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Abstract
An improved laparoscopic suture knot pusher or a ligator comprising an elongated and slender shaft with both ends having specific functions. One end serves as the handle and the other is knot pusher forward guide end. The forward end tip is slightly convexed and has three hallowed-out spaces which receives and engages the throws and strands when the throw knot rundown process is activated delivering the throw knots through a trocar and tied intracorporeally at the surgical site. A method of knot tying is described in which a plurality of throws are executed all at one time extracorporeally on the two strands of the suture urging forward each throw knot in succession without a pause thereby eliminating the formation of loose knots but instead square knots are created and tightened at the surgical site.
Claims4
A surgical instrument for tying ligatures and sutures comprising;
- a shaft member laving proximal and distal ends and having substantially constant cross sectional measurements along the shaft and longitudinal axis between said ends, one of said ends is a handle and the other of said ends is a suture guide or throw-knot pusher;
- said guide end having three hallow cut-out spaces, located thereon wherein one of said cut-out spaces is a slot that runs across a midsection of a slightly convexed surface having a spheroidal shaped configuration at said distal end of said shaft and said slot is dimensioned to accommodate a portion of a formed throw-knot of said instrument allowing a smooth motion of the instrument during a throw knot rundown process.
A method of knot tying a plurality of throw knots by providing an instrument of claim 1, each said throw knot being extracorporeally and sequentially fashioned at least 2 cm apart on two strands of a suture from a remote surgical site, whereby said throw knots are formed by executing a gentle pull rearward on one said strand forcing the other strand to encircle or loop around said pulled strand, thence engaging the strands behind each throw knots with the transverse slot and longitudinal opposing grooves of the distal end of said instrument of claim 7 and runing down each throw knot in succession through the lengths of suture to a predetermined surgical site.
Dependencies are inferred from the claim text.