Dynamization struts and methods of use are provided. A dynamization strut may comprise a sleeve, a shaft, a biasing member, and a bushing. The sleeve may comprise an inner recess with a first and second section. The shaft may comprise an interior section to be disposed within the inner recess of the sleeve. The biasing member may be disposed around the interior section of the shaft, and sized to fit within the first section of the inner recess of the sleeve. The bushing may be secured against a portion of the shaft. Rotation of the bushing may provide for compressive movement of the biasing member relative to the sleeve and shaft. Compression of the biasing member may occur without a corresponding change in a total length of the dynamization strut. Rather, changes in the length of the strut may occur as a result of external compressive forces acting upon it.

A fixation device comprises a first clamping member having an adjustable clamping collar and a first curved support portion attached to the adjustable clamping collar. The first clamping member is adapted to receive a digit. The first curved support portion is adapted to support an inferior surface of a proximal phalanx of the digit. A distal member is adjustably attachable to the first clamping member. The distal member has a second curved support surface adapted to support an inferior surface of a distal phalanx of the digit and a curved distal end adapted to apply a compressive force in a proximal direction to a distal end of the distal phalanx.

Pair of dynamic external fixation devices (100) for the reduction of fractures of bone fragments, said devices (100) being arranged on either side of a first bone portion traversed by a first pin (10) in a proximal position and a second bone portion traversed by a second pin (11) in distal position, while each of the dynamic external fixation devices (100) includes a first body (1) having a longitudinal axis profile (X, X), having a proximal bore (5) passing through an axis (Y, Y) in combination with the first pin (10), said first body (1) being embedded in a first coil spring (8), while said first spring (8) is nested in a second coil spring (12), mounted in conjunction with a second body mounted in conjunction on said first body (1), while the second body is mounted in conjunction with the second pin (11).

The present disclosure relates to an external fixation apparatus comprising a strut having a longitudinal axis defined therein, the strut comprising a strut housing having a housing adjustment aperture, an adjustment sleeve slidably disposed within the strut housing, and a fastener that releasably couples the strut housing with the adjustment sleeve. An embodiment of the adjustment sleeve comprises a first and a second bore extending from a top towards a bottom surface of the adjustment sleeve, a first sleeve member with a proximal end, a distal end, and an axial bore, and a second sleeve member adjoining the first sleeve member. In an embodiment, the second sleeve member comprises a body and a beveled end that is slidably disposed within the axial bore of the first sleeve member. The adjustment sleeve further comprises a biasing mechanism between the first sleeve member and the second sleeve member.

An external fixation locking device comprises a bolt (1), a spring (2), a spherical washer (3), a top piece (4), a middle piece (5) and a tube locking bottom piece (6), wherein the top piece (4) is a tube locking top piece (41) or a pin locking top piece (42), wherein the spring (2), the spherical washer (3), the top piece (4), the middle piece (5) and the tube locking bottom piece (6) are successively threaded onto the screw rod of the bolt (1), wherein the axes of the spring (2), the spherical washer (3), the top piece (4), the middle piece (5) and the bottom piece (6) coincide with the axis of the bolt (1).

A dynamization device may comprise a sleeve, a shaft, a dial, a contact feature, and a biasing member. The shaft may comprise an interior section partially within an inner recess of the sleeve; a flat surface on the interior section of the shaft; and a plurality of external threads on the interior section of the shaft. The dial may comprise a body disposed partially within the inner recess; an annular lip; and internal threads secured to external threads of the shaft. The contact feature has an annular geometry disposed within the inner recess of the sleeve. The biasing member may be disposed around the interior section of the shaft, and disposed between the contact feature and a shoulder within the inner recess of the sleeve. Rotation of the annular lip may provide for compressive movement of the biasing member relative to the sleeve and shaft.

A load control device can be attached to bones on either side of an articulated joint in order to control the forces and loads experienced by the joint. The device comprises an apparatus for controlling the load on articular cartilage of a human or animal joint and includes: a first fixation assembly for attachment to a first bone; a second fixation assembly for attachment to a second bone; a link assembly coupled to the first fixation assembly by a first pivot and coupled to the second fixation assembly by a second pivot, the first and second fixation assembly thereby each being angularly displaceable relative to the link assembly. The apparatus enables a clinician to effectively control the environment of cartilage in a joint during a treatment episode.

A force adjustable spring distractor device having an elongated, relatively thin guide plate, a force adjusting rod member having first and second oppositely threaded portions, first and second anchor bodies mounted on the guide plate and the threaded portions of the rod, first and second distractor bodies mounted on the guide plate and the rod, and first and second distraction springs connecting the anchor bodies to the distractor bodies, whereby rotation of the force adjusting rod results in separation of the anchor bodies and elongation of the distraction springs, thereby imparting a separation force to the distractor bodies.

Dynamization struts and methods of use are provided. A dynamization strut may comprise a sleeve, a shaft, a biasing member, and a bushing. The sleeve may comprise an inner recess with a first and second section. The shaft may comprise an interior section to be disposed within the inner recess of the sleeve. The biasing member may be disposed around the interior section of the shaft, and sized to fit within the first section of the inner recess of the sleeve. The bushing may be secured against a portion of the shaft. Rotation of the bushing may provide for compressive movement of the biasing member relative to the sleeve and shaft. Compression of the biasing member may occur without a corresponding change in a total length of the dynamization strut. Rather, changes in the length of the strut may occur as a result of external compressive forces acting upon it.

The present application discloses embodiments related to an external bone fixation device configured to correct bone deformities or repair bone injuries. The device can include a plurality of bases configured to be attached to portions of a bone and a plurality of struts configured to be adjustable in length to change the position and orientation of the plurality of bases and the attached bone portions.