Patent classifications
A61B17/6458
Monoplanar device for stabilizing and distracting an anatomical joint
A monoplanar device for stabilizing and distracting an anatomical joint is disclosed including first and second shafts having engagement features that form a hinge joint with a single axis of rotation, the shafts being constrained by the hinge joint to move relative to one another only around the single axis of the hinge joint. The shafts and the hinge joint are disposed in a single plane with the single axis being about orthogonal thereto. A first clamp having a recess and a pin hole is slidingly disposed on the first shaft, and a second clamp having a pin hole is slidingly disposed on the second shaft. The pin holes are arranged to receive bone pins for insertion into bones adjacent to the anatomical joint. A distraction screw disposed between a threaded partial bore of the first shaft and the recess rotates to advance the first clamp along the first shaft.
BONE PLATING KIT FOR FOOT AND ANKLE APPLICATIONS
A bone plate kit may be provided for a foot or ankle orthopedic procedure, such as a lapidus procedure. In some examples, the bone plate kit includes a sterile container that holds multiple unicortical bone plate fasteners and one or more bone plates. For example, the kit may contain two bone plates configured to be used together during a tarsal-metatarsal fusion procedure. Each of the two bone plates may be configured to span different regions of a tarsal-metatarsal joint. The unicortical bone plate fasteners can be used to secure the two bone plates to the first metatarsal and medial cuneiform of a patient undergoing a procedure. In some configurations, one of the bone plates is a helical bone plate while the other bone plate may or may not be a helical bone plate.
EXTERNAL DISTRACTOR AND ADJUSTMENT DEVICE FOR USE IN SUCH A DISTRACTOR
An external distractor to gradually enlarge the distance between first and second bone parts includes first and a second connection devices. The first and second connection devices are connected to the first and second bone parts, respectively, with first and second respective bone pins. The distractor includes an adjustment device between the connection devices for adjusting the distance between the connection devices along an adjustment axis. The adjustment device includes a tubular base body coupled to the first connection device, an extension tube coupled to the second connection device and an adjustment mechanism for moving the extension tube with respect to the base body along the adjustment axis. The adjustment mechanism includes a rotatable adjustment ring for moving the extension tube upon rotation of the adjustment ring around the adjustment axis. The adjustment mechanism includes a spring engaging the adjustment ring for preventing unintended activation of the adjustment mechanism.
ADJUSTABLE STRUT ASSEMBLIES FOR EXTERNAL FIXATION SYSTEMS
Length-adjustable strut assemblies for external fixation systems, and corresponding external fixation systems, are disclosed. The strut assemblies include an elongate first and second end members, an elongate intermediate member, and first and second adjustment mechanisms. The intermediate member comprises a threaded rod fixedly coupled within an axial cavity thereof, and is rotatably fixed and axially translatably within an axial cavity of the first end member. An end portion of the second end member is received within the axial cavity of the intermediate member, and the second end member comprises an axial cavity threadably coupled with the threaded rod. The first adjustment mechanism is configured to selectively axially fix the intermediate member relative to the first end member. The second adjustment mechanism is configured to selectively rotate the second end member with respect to the threaded rod to axially translate the second end member relative to the intermediate member.
MODULAR DIGIT FIXATION DEVICE AND RELATED SYSTEMS AND METHODS
Disclosed herein are various embodiments of a modular digit fixation system that has two or more attachable and adjustable modules. The modules are attachable to separate adjacent digits and each other and have multiplanar adjustability. Two modules are disclosed: an elongate module and a cylindrical module having a body and a slidable clamp. Further, the embodiments also include various related components, devices, methods, and technologies.
Locking clamp and external fixation horns
Provided are external fixation horns and clamp for use with struts in conjunction with external bone fixation (EBF) devices. A fixation horn is a cylindrical component intended to connect and provide further fixation locations for a half-pin clamp. A horn can be offered at various angles and lengths to best fit the application and surgeon preference. Prior to securement, the horn is positioned in the desired position and orientation relative to the half-pin clamp. Once in position, a floating collar of the horn is tightened onto the clamp. The collar compresses a serrated face of the horn with a mating serrated face of the clamp. The serrated faces of the horn and half-pin clamp are designed to lock together and resist rotational slippage during use.
UNIVERSAL CLAMP APPARATUS FOR BONE FIXATION DEVICE
Embodiments of a universal clamp apparatus for an orthopedic exterior fixator are disclosed. The universal clamp apparatus can be operated without the need for tools, with extraordinary tightening precision, and with low risk of losing stability. The universal clamp apparatus has at least one pin/rod clamp, but preferably two pin/rod clamps. Each clamp has seating grooves for snapping in and attaching to at least one of the following: a frame rod associated with a frame of the fixator and/or a bone pin for implantation in a bone fragment. A screw mechanism, such as a clamp screw, extends through and connects the first and second pin/rod clamps. An ergonomically designed knob having at least one collapsible or non-collapsible turn lever acts as a torque amplifier when rotated to tighten and untighten the pin/rod clamps to the frame rod and/or bone pin by movement along the clamp screw. A planar side of the pin/rod clamps that are contiguous each have radial ratchet grooves that are in mating engagement and that implement a ratcheting and securing mechanism so that the rotation of the pin/rod clamps relative to each other occurs in discrete incremental rotational steps.
Locking Clamp and External Fixation Horns
Provided are external fixation horns and clamp for use with struts in conjunction with external bone fixation (EBF) devices. A fixation horn is a cylindrical component intended to connect and provide further fixation locations for a half-pin clamp. A horn can be offered at various angles and lengths to best fit the application and surgeon preference. Prior to securement, the horn is positioned in the desired position and orientation relative to the half-pin clamp. Once in position, a floating collar of the horn is tightened onto the clamp. The collar compresses a serrated face of the horn with a mating serrated face of the clamp. The serrated faces of the horn and half-pin clamp are designed to lock together and resist rotational slippage during use.
Coupling device for in an orthopaedic system
Coupling device for connecting an annular fixation member to a bone pin, wherein the coupling device comprises pin connecting means arranged for connecting the bone pin to the coupling device and ring connecting means arranged for removably connecting the annular fixation member to the coupling device, wherein the coupling device further comprises fixator connecting means arranged for removably connecting a fixator to the coupling device, wherein the ring connecting means and the fixator connecting means are arranged for simultaneously connecting the annular fixation member and the fixator while the pin connecting means are connected to the bone pin.
Ankle fixation system
In an example, a clamping assembly includes a longitudinal member having a first end and a second end, the second end defining a first clamp, a second clamp configured to attach to the first end of the longitudinal member and connect to a rod assembly, a clamping member including a first end, a second end defining a spherical portion, and a third clamp, where the first clamp of the longitudinal member is configured to receive the second end of the clamping member.