Apparatus for sewing tissue and method of use
First Claim
1. An apparatus for applying suture material through tissue comprising:
- a housing;
a shaft having a distal end which extends from said housing to said distal end;
said distal end having a fixed member disposed opposite a driver member, and a slotted opening;
means for driving said driver member to move forward and backward with respect to said fixed member; and
a needle having one end pivotably mounted to said driver member to pivot and extend through said slotted opening when said driver member is moved forward, and another end having a slot for suture material.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for sewing tissue especially useful for tissue ligation, is provided having a housing and a hollow shaft which extends from the housing. At the distal end of the shaft along its interior is a movable driver member disposed opposite a fixed member. A needle is pivotably mounted at one end to the driver member to extend, when the driver member is moved forward, through a slot in the fixed member and an opening in the shaft, and to retract back into the shaft when the driver member is moved backward. At the distal end of needle is a slotted hook for capturing a loop of suture. The free ends of the loop of suture extend through a hole of the fixed member. A lever pivotably mounted in the housing is coupled to the driver member to translate linear motion forwards or backwards to the driver member. In a method for sewing tissue, the needle is driven forward to extend from the apparatus and then through tissue adjacent tissue to be sewn. The loop of suture is then removed from the needle prior to its retraction leaving the loop of suture extending through the tissue. The apparatus is repositioned with the needle on the opposite side of the tissue to be sewn. The loop of suture is captured again on the needle, and then the needle is retracted with the loop of suture into the apparatus. While holding one end of the suture, the apparatus is removed and one side of the loop of suture is drawn through and around the tissue to be sewn. The mid section of the suture is thus behind the tissue and the suture ends on opposite sides of the tissue are available to facilitate securing or tying of the suture to close a wound or to ligate a tissue structure.
124 Citations
26 Claims
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1. An apparatus for applying suture material through tissue comprising:
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a housing;
a shaft having a distal end which extends from said housing to said distal end;
said distal end having a fixed member disposed opposite a driver member, and a slotted opening;
means for driving said driver member to move forward and backward with respect to said fixed member; and
a needle having one end pivotably mounted to said driver member to pivot and extend through said slotted opening when said driver member is moved forward, and another end having a slot for suture material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for ligating tissue with an apparatus having a shaft and a needle extendible and retractable from said shaft, said needle having slot through which extends a loop of suture material have two free ends, said method comprising the steps of:
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extending the needle from said shaft;
locating said extended needle through adjacent tissue along one side of the tissue to be ligated;
removing the loop of said suture material from said needle while said suture material and needle are located through said adjacent tissue;
removing said needle from said adjacent tissue to leave said loop of suture material extending therethrough;
positioning said needle to capture said loop of suture material along another side of the tissue to be ligated;
retracting the needle into said shaft;
pulling said suture material through said adjacent tissue to provide said loop of suture around said tissue to be ligated; and
securing closed the free ends of the loop of suture material to ligate the tissue. - View Dependent Claims (16, 17, 18)
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19. A method for sewing tissue with an instrument having a shaft and a needle extendible and retractable from a distal end of said shaft, said method comprising the steps of:
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loading a loop of suture material through a slot of said needle;
placing said distal end of shaft near the tissue to be sewn;
extending said needle from said distal end;
passing said extended needle and loop of suture material through tissue;
removing said loop of suture material from said needle;
removing the needle from said tissue to leave the loop of suture extending therethrough; and
positioning the extended needle to recapture said loop of suture material in said needle slot. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification