Interested in licensing this patent?
MTEC can help explore whether this patent might be available for licensing for your application.
Publication Number
US-12708410-B2
Publication Date
2026-08-18
Expiration Date
Abstract
A rod reduction device includes a body having a housing defining a cavity; a first member and a second member; a first finger assembly and a second finger assembly being secured to respective distal ends of the first member and the second member and configured to releasably engage a vertebral anchor therebetween; and a screw assembly defining a longitudinal axis, at least a portion of the screw assembly being positioned within the cavity of the housing. The screw assembly includes an inner shaft having exterior threading; and an outer shaft circumscribing the inner shaft and having interior threading threadably engaged with the exterior threading of the inner shaft. At least a portion of the outer shaft is rotatably coupled to the housing. The inner shaft is movable along the longitudinal axis upon rotation of the outer shaft and configured to reduce a spinal rod into the vertebral anchor.
Core Innovation
The invention is a rod reduction device having a housing, first and second members extending distally from the housing, and respective finger assemblies secured to the distal ends of those members. The finger assemblies collectively releasably engage a vertebral anchor, and each finger is pivotable relative to its respective member. A threaded screw assembly includes an inner shaft and a surrounding outer shaft, with threaded engagement allowing the inner shaft to move along the longitudinal axis when the outer shaft rotates.
The inner shaft is configured to reduce a spinal rod into the vertebral anchor. The supplied summary also describes a reduction carriage that urges the rod into the anchor, and lever-and-spring components associated with release of the finger assemblies. The background section is not included in the supplied content; therefore, the problem being solved is not explicitly described in patent.
Claims Coverage
The supplied relevant claims identify one independent claim, claim 1. Its principal coverage comprises three inventive features.
Pivotable finger assemblies for anchor engagement
First and second finger assemblies are secured to respective distal ends of first and second members and are configured to collectively releasably engage a vertebral anchor. Each finger has a distal finger tip and is pivotable relative to its respective member.
Threaded screw assembly
The screw assembly includes an inner shaft having exterior threading and an outer shaft having interior threading that circumscribes the inner shaft. The shafts are threadably engaged, and the outer shaft is rotatably coupled to the housing.
Longitudinal movement of the inner shaft
Rotation of the outer shaft moves the inner shaft along the longitudinal axis, and the inner shaft is configured to reduce a spinal rod into the vertebral anchor.
Claim 1 covers a rod reduction device combining pivotable finger assemblies that releasably engage a vertebral anchor with a threaded screw assembly that moves an inner shaft to reduce a spinal rod into the anchor.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Spinal fixation and stabilization procedures.
Interested in licensing this patent?