Mechanical deployment device for hip all-suture anchor
Inventors
Assignees
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Publication Number
US-12471903-B2
Publication Date
2025-11-18
Expiration Date
Abstract
A deployment device for an all suture anchor having a braided anchor and a suture filament extending through the braided anchor. A fork extends longitudinally through the body of the device and is moveable between an extended position and a withdrawn position to position and then release the braided anchor. A ratchet wheel drives a spool coupled to the ratchet wheel by a frangible link to wind up the suture filament to deploy the braided anchor. When sufficient tension is achieved to fully deploy the braided anchor, the frangible link will break, thereby releasing the suture filament to leave the deployed braided anchor in place with the suture filament extending from the pilot hole. All operations are accomplished by one lever that selectively withdraws the fork, rotates the ratchet wheel, and then allows release of the filament with the use of just a single hand.
Core Innovation
The invention relates to a one-handed mechanical deployment device for an all suture anchor having a braided anchor and a suture filament extending through the anchor. The device comprises a body with a fork extending longitudinally through the body and movable between an extended position and a withdrawn position. A lever is coupled to the fork via a link that pivots between a first end coupled to the lever and a second end coupled to a bearing member of the fork, thereby moving the fork longitudinally within the body and rotating a ratchet wheel.
A ratchet wheel is rotatably mounted to the body and cooperates with a spool. The spool is coupled to the ratchet wheel by a frangible link so that rotation drives winding of the suture filament to tension and deploys the braided anchor. When filament tension reaches a predetermined threshold, the frangible link decouples the spool from the ratchet wheel so the filament unspools automatically, leaving the deployed anchor with sutures extending from the pilot hole.
The mechanism includes lever-position-dependent control and state retention features, including a bearing member notch that is engaged by the link when the lever is in an open position. Lever position-dependent pawl engagement is described using first and second fences, along with a latch for the initial lever-fork state and a detent to lock fork retraction.
Claims Coverage
The provided independent claim covers a deployment device for an all suture anchor with a fork-driven lever action that moves the fork and rotates a ratchet wheel, where a spool is coupled to the ratchet wheel by a frangible link that decouples at a predetermined filament tension threshold. The independent claim further specifies engagement of a link with a notch on a bearing member when the lever is in an open position.
All suture anchor deployment device with body and longitudinal fork
A deployment device for an all suture anchor having a braided anchor and a suture filament extending through the anchor, comprising a body and a fork extending longitudinally through the body and moveable between an extended position and a withdrawn position.
Ratchet wheel rotatably mounted and spool coupled by frangible link
A ratchet wheel rotatably mounted to the body; a spool coupled to the ratchet wheel by a frangible link.
Lever link that moves the fork and rotates the ratchet wheel
A lever coupled to the fork via a link that is pivotally coupled at a first end to the lever and at a second end to a bearing member of the fork to move the fork longitudinally within the body from the extended position to the withdrawn position and to the ratchet wheel to rotate the ratchet wheel.
Bearing member notch engaged by the link in open position
Wherein the bearing member includes a notch that is engaged by the link when the lever is in an open position.
Across the independent claim, the inventive coverage centers on the combined fork and lever actuation of a ratchet wheel and a spool, where the spool is coupled via a frangible link, plus lever-position-dependent notch engagement on the bearing member when the lever is in an open position.
Stated Advantages
Allows automatic unspooling of the suture filament after filament tension reaches a predetermined threshold through decoupling of the spool from the ratchet wheel by a frangible link.
Documented Applications
Deployment of an all suture anchor with a braided anchor and sutures extending from a pilot hole.
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