Surgical puncture cinch and closure system
First Claim
1. A suture applicator, comprising;
- a proximal handle;
a length of suture;
a hollow suture needle extending from a distal end of the handle, the hollow suture needle comprising a helical distal portion and a distal end, the hollow suture needle further comprising a deflection segment positioned at the distal end, wherein the deflection segment extends proximally, with respect to the suture applicator, from the distal end of the hollow suture needle, wherein the deflection segment is configured to deflect from a first shape generally in helical alignment with the helical distal portion to a second shape wherein the deflection segment is deflected to extend proximally toward the handle;
wherein the length of suture passes through the hollow suture needle to the deflection segment.
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Accused Products
Abstract
A system for forming a purse string suture, including a suture applicator having a proximal handle, a length of suture wound on a spool, and a hollow suture needle extending from a distal end of the handle. The suture needle projects distally from the handle in a helical shape and terminates in a sharp distal tip with an opening in one side close to the distal tip. A free end of the length of suture may extend out of the distal tip and back into the hollow suture needle through the opening. The suture needle may have a deflection segment adjacent the distal tip that is more flexible than the rest of the helical distal portion of the suture needle. A linear hollow pivot shaft extends from a distal end of the handle substantially along an axis of the helical distal portion of the suture needle.
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Citations
13 Claims
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1. A suture applicator, comprising;
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a proximal handle; a length of suture; a hollow suture needle extending from a distal end of the handle, the hollow suture needle comprising a helical distal portion and a distal end, the hollow suture needle further comprising a deflection segment positioned at the distal end, wherein the deflection segment extends proximally, with respect to the suture applicator, from the distal end of the hollow suture needle, wherein the deflection segment is configured to deflect from a first shape generally in helical alignment with the helical distal portion to a second shape wherein the deflection segment is deflected to extend proximally toward the handle; wherein the length of suture passes through the hollow suture needle to the deflection segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A suture applicator, comprising;
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a proximal handle; a length of suture; a hollow suture needle extending from a distal end of the handle, the suture needle projecting distally from the handle and having a helical distal portion terminating in a sharp distal tip; a flexible inner needle extending through the suture needle and being movable therein, the inner needle being hollow and containing a distal portion of the length of suture, the inner needle including a distal deflection segment that is formed to emerge from the distal tip of the suture needle and angle in a proximal direction; a linear hollow pivot shaft extending from a distal end of the handle substantially along a helical axis of the helical distal portion of the suture needle, the pivot shaft having a blunt tip with a substantially large radial profile to prevent puncturing of tissue by the pivot shaft; and a mechanism within the handle biasing the pivot shaft in a distal direction; and a puncture needle extending through the linear hollow pivot shaft, the puncture needle having a sharpened distal tip configured to puncture tissue. - View Dependent Claims (13)
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Specification