Endoscopic suture passer and method
First Claim
1. A suturing device comprising:
- a needle having a shaft with a proximal and a distal end;
a pointed head at the distal end of said needle shaft;
a suture-receiving hook formed proximally to said pointed head, said head being larger than said shaft to provide a shoulder intermediate said shaft and said head, said shaft and shoulder forming said hook;
a latch displaceable between open and closed positions for opening and closing said hook, said latch being spring-biased to the open position; and
means operable from the proximal end for operating said latch.
3 Assignments
0 Petitions
Accused Products
Abstract
An endoscopic suturing device is provided for manipulating a suture to form a stitch through a tissue within a body cavity. The suturing device comprises a needle with a shaft, a pointed head located at the distal end of the needle shaft, a hook formed proximally to the pointed head, and a latch for opening and closing the hook. The latch is biased to the open position. A tubular sheath is provided which is concentric with the needle shaft, the needle shaft being frictionally slidable within the tubular shaft. The suture is clamped by the device by inserting the suture into the hook and sliding the tubular sheath over the latch, thereby closing the hook. The suture can then be released by sliding the tubular sheath to uncover the latch, thereby opening the hook.
452 Citations
25 Claims
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1. A suturing device comprising:
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a needle having a shaft with a proximal and a distal end; a pointed head at the distal end of said needle shaft; a suture-receiving hook formed proximally to said pointed head, said head being larger than said shaft to provide a shoulder intermediate said shaft and said head, said shaft and shoulder forming said hook; a latch displaceable between open and closed positions for opening and closing said hook, said latch being spring-biased to the open position; and means operable from the proximal end for operating said latch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of manipulating a suture in a tissue by releasing and capturing the suture within a body cavity, the suture having a first and a second part, comprising the steps of:
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a. providing a suturing device having a needle shaft with a proximal end and a distal end, a hook and a latch at the distal end of said shaft, and a handle at the proximal end to open and close the hook with said latch, whereby steps of releasing and capturing the suture are effected by respectively opening and closing said hook with said latch; b. positioning the suture with at least the first part of the suture on a first side of the tissue; c. using the suturing device to engage and pass the first part of the suture through the tissue to the second side of the tissue at one point, leaving the second part of the suture on the first side of the tissue, thereby positioning the suture with the two parts of the suture on opposite sides of the tissue; d. releasing the first part of the suture and withdrawing the suturing device through the tissue at said one point, and passing it through the tissue at a second point spaced from said one point; and e. opening the hook of the device, capturing the first part of the suture in the hook of said suturing device, closing the hook with the latch, and drawing the first part of the suture through the tissue from the second side to the first side at said second point, so as to enable forming a stitch through the tissue. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A method of securing a patch to one side of a tissue within a body cavity, comprising the steps of:
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positioning a patch having plurality of suture parts attached thereto within the body cavity; spreading the patch over one surface of the tissue; using a suturing device to penetrate the tissue at a first point, to capture a first of said suture parts while on the one side of said tissue, and to draw said suture part through the tissue at said first point to the other side of said tissue; releasing the first part and passing the suturing device through the tissue at a second point spaced from the first point; capturing a second suture part with said device and drawing it through the tissue at said second point to the other side of said tissue; and connecting said two suture parts at the other side of said tissue to secure said patch in place. - View Dependent Claims (24)
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25. A suturing device comprising:
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a needle having a shaft with a proximal and a distal end; a pointed head at the distal end of said needle shaft; a suture-receiving hook formed proximally to said pointed head; a latch displaceable between open and closed positions for opening and closing said hook, said latch being spring-biased to the open position; a tubular sheath concentric with said needle shaft and extending between said proximal end and said latch, said needle shaft being frictionally slidable within said tubular sheath, said latch being displaced by said spring bias to open said hook when said needle shaft is extended relative to said tubular sheath and said latch being displaced by said sheath to close said hook when said needle shaft is retracted relative to said tubular sheath; and a rotator attached to said shaft at its proximal end for rotating the shaft of said suturing device within said sheath, and rotating said hook at the distal end of the device.
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Specification