Soft tissue repair devices, systems, and methods
Devices, systems and/or methods for repairing a lacerated tendon or ligament adjacent a repair site. In one embodiment, a repair device includes an elongated flexible structure and multiple anchors, the multiple anchors pre-positioned with the elongated flexible structure. The repair device may be coupled to the tendon or ligament at the repair site with a delivery device. The repair device may be pre-positioned in a cartridge such that the cartridge is loaded into the delivery device. The lacerated tendon or ligament is positioned within a cradle portion of the delivery device such that the tendon is positioned between the cradle portion and the cartridge that holds the repair device. The delivery device may then be triggered to actuate and drive the repair device from the cartridge to couple to the lacerated tendon or ligament. In this manner, the repair device may be anchored to the lacerated tendon.
1. A medical device system configured to fuse a first tendon end to a second tendon end of a lacerated tendon, the medical device system comprising:
a delivery device including:
a body;
a handle extending from the body;
a trigger associated with the handle;
an elongated guide operatively coupled to the body, the elongated guide defining a longitudinal guide axis, the elongated guide including a drive shaft and a pusher block extending along the longitudinal guide axis;
a cartridge removably coupled to an end of the elongated guide; and
a slider member slidably coupled to a distal portion of the elongated guide, the slider member including a cradle portion fixed to the slider member and positioned distal of the slider member, the cradle portion including an elongated bed surface defining a longitudinal cradle axis, the longitudinal cradle axis being substantially perpendicular to the longitudinal guide axis, the bed surface of the cradle portion configured to receive a first tendon portion and a second tendon portion of the lacerated tendon; and
a repair device configured to be positioned within the cartridge, the repair device including an elongated flexible member and anchors configured to extend through the elongated flexible member, each of the anchors including a base with legs extending from the base from a proximal end to a distal free end such that the legs from the proximal end to the distal free end extend substantially parallel with the longitudinal guide axis and the elongated flexible member extends substantially perpendicular relative to the longitudinal guide axis;
wherein the anchors extend through the elongated flexible member along a first portion and a second portion of the elongated flexible member, the elongated flexible member including an intermediate portion extending between the first portion and the second portion of the elongated flexible member; and
wherein, upon the lacerated tendon being coupled to the elongated flexible member, the first and second portions of the elongated flexible member are configured to elongate as a force is placed upon the tendon and the intermediate portion of the elongated flexible member is configured to substantially resist elongation of the tendon.
2. The medical device system of claim 1 , wherein, upon the lacerated tendon being positioned in the cradle portion, the trigger is actuated to compress the anchors through the lacerated tendon to couple the elongated flexible member to the lacerated tendon.
3. The medical device system of claim 1 , wherein, upon actuation of the trigger, the drive shaft moves distally to push the anchors through the cartridge so that the legs extend through the first and second tendon end portions, to then compress against the bed surface so that the legs curl back into a distal side of the first and second tendon end portions with the base of each of the anchors coupling the elongated flexible member to a proximal side of the first and second tendon end portions.
4. The medical device system of claim 1 , wherein the bed surface of the cradle portion comprises anvil channels defined therein, the anvil channels sized and configured to receive end portions of the legs of the anchors to curl the end portions and bundle portions of the lacerated tendon.
5. The medical device system of claim 1 , wherein the elongated guide comprises a spring positioned within the elongated guide and coupled to the slider member, the spring configured to bias the cradle portion toward the cartridge.
6. The medical device system of claim 1 , further comprising a locking mechanism associated with the slider member, the locking mechanism configured to prevent the slider member from movement along the elongated guide.
7. The medical device system of claim 1 , wherein the anchors comprise a u-shaped configuration.
8. The medical device system of claim 1 , wherein the elongated flexible member comprises a lattice structure.
9. The medical device system of claim 1 , wherein the elongated flexible member comprises one or more polymeric filaments.
10. The medical device system of claim 9 , wherein the one or more polymeric filaments extend with at least one of a weaved, braided, and knitted configuration.
11. The medical device system of claim 1 , wherein the anchors are separate and discrete from each other, the anchors positioned along a length of the elongated flexible member in at least one of a staggered arrangement and an aligned arrangement.
12. The medical device system of claim 1 , further comprising a flexible cable configured to be operatively coupled between the handle and the elongated guide, the flexible cable configured to facilitate remote triggering of the handle relative to the elongated guide.
13. The medical device system of claim 12 , wherein the flexible cable is configured to operatively provide a force to the pusher block, the pusher block configured to push the anchors from the cartridge.
14. The medical device system of claim 12 , wherein the flexible cable is removably coupled to at least one of the elongated guide and the handle.
15. The medical device system of claim 1 , further comprising a driving mechanism for driving the anchors from the cartridge, the driving mechanism comprising at least one of the drive shaft, a cable, a hydraulic mechanism, a pneumatic mechanism, and an electro-mechanical mechanism.
16. A medical device system configured to fuse a first tendon end to a second tendon end of a lacerated tendon, the medical device system comprising:
a delivery device including:
an elongated guide defining a longitudinal guide axis;
a cartridge removably coupled to the elongated guide; and
a moveable member coupled to the elongated guide and moveable relative to the elongated guide, the moveable member including a cradle portion, the cradle portion including an elongated bed surface defining a longitudinal cradle axis, the longitudinal cradle axis being substantially perpendicular to the longitudinal guide axis, the bed surface of the cradle portion configured to receive a first tendon portion and a second tendon portion of the lacerated tendon; and
a repair device configured to be positioned within the cartridge, the repair device including an elongated flexible member and anchors configured to extend through the elongated flexible member;
wherein the anchors extend through the elongated flexible member along a first portion and a second portion of the elongated flexible member, the elongated flexible member including an intermediate portion extending between the first portion and the second portion of the elongated flexible member; and
wherein, upon the lacerated tendon being coupled to the elongated flexible member, the first and second portions of the elongated flexible member are configured to elongate as a force is placed upon the tendon and the intermediate portion of the elongated flexible member is configured to substantially resist elongation of the tendon.
17. The medical device system of claim 16 , wherein the anchors comprise a u-shaped configuration.
18. The medical device system of claim 16 , wherein the elongated flexible member comprises a lattice structure.
19. The medical device system of claim 16 , wherein the elongated flexible member comprises one or more polymeric filaments.
20. The medical device system of claim 19 , wherein the one or more polymeric filaments extend with at least one of a weaved, braided, and knitted configuration.
21. The medical device system of claim 6 , wherein the anchors are separate and discrete from each other, the anchors positioned along a length of the elongated flexible member in at least one of a staggered arrangement and an aligned arrangement.