Threadable knot soft tissue defect repair system
First Claim
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1. A soft tissue defect repair system comprising:
- a longitudinally extending guide tube having a channel extending therethrough;
a boom arm extending from the guide tube, the boom arm having a boom arm housing that is spaced from the guide tube, wherein a tissue-receiving gap is disposed between the boom arm housing and the guide tube;
a needle reciprocally translatable within the channel of the guide tube between an advanced position in which a distal end of the needle extends into the boom arm housing, and a retracted position in which the distal end of the needle is retracted from the boom arm housing;
a shuttling element configured to detachably couple to the needle, and to the boom arm housing,wherein an external surface of the guide tube defines a target knot location, and the shuttling element is configured to attach to a free end of a strand of suture, such that a pre-tied knot of the strand of suture is configured to be tied around the target knot location of the guide tube, such that the pre-tied knot is configured to be pushed off a distal end of the guide tube and over the free end of the suture strand so as to tighten a soft tissue defect approximated by the strand of suture.
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Abstract
A soft tissue defect repair system for approximating defects, such as defects in the annulus fibrosus of an intervertebral disc, includes a cannulated rod through which is disposed a suture retrieval device. A strand of suture includes a locking or ratcheting knot pre-tied around the outside of the cannulated rod and a free end that is guided in and out of the soft tissue. A knot pusher fits around the cannulated rod, which is used to push the knot off of the cannulated rod after the stitching of the tissue is accomplished. The defect is approximated by tensioning the free end. Various suturing methods or patterns are disclosed for defect approximation.
67 Citations
19 Claims
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1. A soft tissue defect repair system comprising:
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a longitudinally extending guide tube having a channel extending therethrough; a boom arm extending from the guide tube, the boom arm having a boom arm housing that is spaced from the guide tube, wherein a tissue-receiving gap is disposed between the boom arm housing and the guide tube; a needle reciprocally translatable within the channel of the guide tube between an advanced position in which a distal end of the needle extends into the boom arm housing, and a retracted position in which the distal end of the needle is retracted from the boom arm housing; a shuttling element configured to detachably couple to the needle, and to the boom arm housing, wherein an external surface of the guide tube defines a target knot location, and the shuttling element is configured to attach to a free end of a strand of suture, such that a pre-tied knot of the strand of suture is configured to be tied around the target knot location of the guide tube, such that the pre-tied knot is configured to be pushed off a distal end of the guide tube and over the free end of the suture strand so as to tighten a soft tissue defect approximated by the strand of suture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification