Patent classifications
A61B17/7079
Rod reducer, compressor, distractor system
A compressor/distractor system for operating on a spine is disclosed. The system includes two rod reducers which each advance a spinal rod into the shoulder portion of a pedicle screw. Each rod reducer includes an inner member, an outer member, and a pair of gripping members. Each outer member receives and advances the spinal rod into the pedicle screw. The outer member also includes a through slot which receives the proximal end of each of the pair of gripping members which may limit the longitudinal translation of the outer member with respect to the inner member. The compressor/distractor system may include a compressor/distractor device which has a compressing, a distracting, and a neutral configuration. A method for using the minimally invasive rod reducers with the compressor/distractor system to secure at least two pedicle screws in desired positions on a spinal rod is also disclosed.
Methods and techniques for spinal surgery
Method for performing spinal correction surgery. The method includes creating at least one access opening in a patient, and implanting a plurality of anchor devices through the at least one access opening onto a plurality of corresponding vertebral bodies. Each anchor device has a channel defined therein. The method further includes disposing a tether into the channel of each of the plurality of anchor devices. A first end portion of the tether is secured to a first of the plurality of anchor devices. Additionally, the method includes translating the vertebral body corresponding to the selected anchor device using a pusher tool. Furthermore, the method includes applying a tension to the tether using a tensioner.
Tissue Retraction And Vertebral Displacement Devices, Systems, And Methods For Posterior Spinal Fusion
Devices for retracting tissue during a minimally-invasive, posterior spinal fusion procedure include a blade positionable along a passageway device connected to a connecting element implanted in a vertebra of the spine, such that the blade covers at least a portion of a longitudinal opening of the passageway device. The blade may be coupled to the passageway device by receiving the passageway device with a receiving portion. Systems for displacing the vertebrae of the spine include first and second extenders, the distal ends of each of which are configured to engage the connecting elements. Each extender may include a shaft configured to be securely engaged within a cage of the respective connecting element. The devices and systems of the present invention may be used in connection with an interbody fusion technique performed through an opening extending between the passageway devices, and an intermediate retractor blade may provide additional tissue retraction.
Rod link reducer
Rod link reducer assemblies, systems, and methods thereof. The rod link reducer assembly provides a manipulator rod having a first end, a second end, and an elongate body extending along a body axis between the first end and the second end. A post extends outwardly from the rod. A rod manipulating joint comprise an elongate joint rod extending along a joint rod axis, a first coupling clamp disposed along the joint rod, the first coupling clamp releasably connectable to the post, and a second coupling clamp disposed along the joint rod adjacent to and rotatable about the joint rod relative to the first coupling clamp. The second coupling clamp is releasably connectable to a shaft. A biasing member is adapted to bias the second clamp against the first clamp.
Reduction instruments and methods
The present subject disclosure provides a novel design for devices and methods for straightening a curved spine by using a reduction tool to move the spine with respect to an attached bone plate.
Percutaneous compression and distraction system
The present invention provides a compression and distraction shaft assembly used to apply compression and distraction to bones including vertebrae. Shaft A assembly and shaft B assembly are attached together via a polyaxial fulcrum. The polyaxial fulcrum allows all rotational degrees of freedom between shaft A assembly and shaft B assembly. Such fulcrum, during compression and distraction, does not impart ancillary stresses or motion to vertebrae. An hourglass-shaped bore for engaging pliers is formed in approximately middle of both the shaft A assembly and the shaft B assembly. Distraction pliers having cylindrical tips are used to apply distraction to vertebrae. Once handles are pressed to impart an appropriate amount of distraction to the vertebrae, they are locked in this position. Compression pliers having cylindrical tips are used to apply compression to vertebrae. Once handles are pressed to impart an appropriate amount of compression to the vertebrae, they are locked in this position.
Surgery control tool for spinal correction rod
Disclosed is a surgery control tool: being no patient implant, including: an elongated body having the shape and the size of a spinal correction rod, end contact parts being able to contact a patient implanted spinal correction rod implant, spacers extending from the elongated body towards the end contact parts.
EXTRACORPOREAL CORRECTION TOOL
In order to provide an external corrective appliance that corrects spinal deformity through operation from outside of the body during implementation of correction and fusion of the spinal deformity using a spinal deformity correction and fusion system to improve correction force, to easily attain the correction intended by an operator, and to eliminate complexity of correction and fusion surgery implemented using the spinal deformity correction and fusion system, thereby reducing burden on the patient, the external corrective appliance includes: shaft members removably attached to corresponding right and left screw members in a pair fixed to the one vertebra, and extending toward the outside of the body of the patient; and a lateral arm member coupled to the shaft members in a pair outside the body of the patient.
SYSTEMS AND METHODS FOR CORRECTING SPINAL DEFORMITIES
The present invention relates generally to medical devices and methods generally aimed at spinal surgery. In particular, the disclosed system and associated methods relate to performing spinal fixation with the use of a deformity system.
MINIMALLY INVASIVE SURGERY ADD ON SCREW SYSTEM
A system, medical devices, and methods for use in surgical procedures, such as spinal surgeries. The system, medical devices, and methods are designed to provide a surgeon the ability to add a screw connector, or screw head such as a tulip, to pre-existing implanted bone, such as pedicle, facet, lateral mass, etc., screw system without having to remove the previously implanted screws and/or rods already existing in a patient.