Importance

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Abstract

This invention relates to devices and methods for making partial thickness or full thickness sutures in tissues endoscopically. The preferred embodiment comprises a suture delivering needle and a suture receiving needle which are in substantially parallel alignment. A shape memory needle with a pre-formed semi-circular shape is used to bridge a gap formed between the suture delivery needle and receiving needle. In preparation for a surgical procedure, the shape memory needle is retracted and partially straightened in the suture delivering needle. After determining the placement of suture, the suture delivering and suture receiving needles are pierced into the repairing tissue. The semi-circular shape memory needle is deployed and resumes the appropriate pre-formed shape while piercing the tissue and extending into the distal opening of the suture receiving needle. A suture is then passed down from the proximal opening of the shape memory needle into the distal opening of the suture receiving needle, then out of the proximal opening of the receiving needle. The shape memory needle is then retracted back into the suture delivering needle, leaving only the suture bridging the distal openings of the delivery needle and receiving needle. The suture device is then withdrawn and the suture is tied to fasten the tissue.

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First Claim