Tissue anchoring system and method
First Claim
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1. A method for attaching a first section of tissue to a second section of tissue, the method comprising the steps of:
- providing an anchor member having a first dimension larger than a second dimension, the anchor member affixed to a first end of a cable;
inserting the anchor member in combination with the cable into a bore of a delivery device, the bore having a longitudinal axis, a distal end of the anchor member retained outside the delivery device bore, a proximal end of the anchor member inserted into and supported by the bore of the delivery device;
maintaining tension on the cable within the delivery device to retain the anchor member proximal end within the delivery device bore and to maintain the first dimension in alignment with the longitudinal axis;
impelling the anchor member in combination with the insertion device through the first tissue section and then through the second tissue section;
releasing the tension on the cable;
pivoting the anchor member to a position wherein the anchor member first dimension is generally transverse to the bore longitudinal axis;
applying tension to a second end of the cable to force the anchor against a distal side of the second tissue section and to urge the first tissue section into close opposition with the second tissue section;
affixing a retainer to the cable adjacent a proximal side of the first tissue section; and
cutting the cable proximal the retainer.
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Abstract
A tissue anchoring system includes a tissue anchor affixed to an end of a cable and supported for insertion on a delivery device, the manipulation of which permits placement of the anchor on a far side of the tissue. A tensioning, crimping and cutting tool designed for use along the cable'"'"'s longitudinal axis, thus reducing the number of incisions required. A suture anchoring system is also described for introducing a loop of suture into a surgical site and anchoring it, for instance, across a tear in soft tissue.
172 Citations
21 Claims
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1. A method for attaching a first section of tissue to a second section of tissue, the method comprising the steps of:
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providing an anchor member having a first dimension larger than a second dimension, the anchor member affixed to a first end of a cable;
inserting the anchor member in combination with the cable into a bore of a delivery device, the bore having a longitudinal axis, a distal end of the anchor member retained outside the delivery device bore, a proximal end of the anchor member inserted into and supported by the bore of the delivery device;
maintaining tension on the cable within the delivery device to retain the anchor member proximal end within the delivery device bore and to maintain the first dimension in alignment with the longitudinal axis;
impelling the anchor member in combination with the insertion device through the first tissue section and then through the second tissue section;
releasing the tension on the cable;
pivoting the anchor member to a position wherein the anchor member first dimension is generally transverse to the bore longitudinal axis;
applying tension to a second end of the cable to force the anchor against a distal side of the second tissue section and to urge the first tissue section into close opposition with the second tissue section;
affixing a retainer to the cable adjacent a proximal side of the first tissue section; and
cutting the cable proximal the retainer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for joining two segments of tissue, comprising;
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providing a first anchor, an elongated member attached to the first anchor, a second anchor slidable on the elongated member and having a deformable portion adapted to engage the elongated member, and a crimping tool having an outer member and an inner member movably disposed within the outer member;
inserting the elongated member through a proximal tissue segment and a distal tissue segment;
anchoring the first anchor to the distal tissue segment;
sliding the second anchor on the elongated member adjacent the proximal tissue segment;
threading the elongated member through the crimping device;
applying tension on the elongated member to urge the distal tissue segment toward the proximal tissue segment; and
moving the inner member with respect to the outer member thereby deforming the deformable portion of the second anchor and maintaining the tension applied to the elongated member. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 19, 20, 21)
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18. A method for joining two cortical bone segments, comprising:
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providing a first rigid anchor pivotally connected to an elongated flexible member, the first rigid anchor moveable between an insertion position wherein a longitudinal axis of the first anchor is in substantial alignment with a longitudinal axis of the elongated flexible member, and an anchor position wherein the longitudinal axis of the first rigid anchor is substantially transverse to the longitudinal axis of the elongated member, a second deformable anchor slidable along the elongated flexible member, an insertion device adapted to hold a portion of the first anchor, and a tensioning and crimping tool having an outer elongated member and an inner member movably disposed within the outer member;
inserting a portion of the elongated member into the insertion device;
interconnecting a portion of the first rigid anchor and the insertion device;
impelling the insertion device with interconnected first rigid anchor through the first and second cortical bone segments;
pivoting the first rigid anchor with respect to the insertion device to the anchor position;
sliding the second deformable anchor on the elongated member adjacent the proximal tissue segment;
threading the elongated member through the tensioning and crimping tool;
applying tension on the elongated member to urge the first rigid anchor toward the second deformable anchor thereby urging the first cortical bone segment toward the second cortical bone segment; and
moving the inner member with respect to the outer member thereby deforming the deformable portion of the second deformable anchor and maintaining the tension applied to the elongated member.
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Specification