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John Colin Stevens

Peter M Stevens

Peter Morris Stevens

A spiral growth tether system may be securable to a bone having a growth plate that separates a first portion of the bone from a second portion of the bone. The spiral growth tether system may include a tether including a first end configured to be secured to the first portion, a second end configured to be secured to the second portion, and a central portion between the first end and the second end. The first end and the second end may be configured to separate at the central portion in response to the first end being urged away from the second end as a result of growth of the bone urging the first portion away from the second portion.

Spiral growth tether systems and methods

A system for external rotational deformity correction of an intact bone may include: a first frame member and a second frame member rotatably coupled therewith, a first bone fixation member coupled to the first frame member and to a distal segment of the intact bone, a second bone fixation member coupled to the second frame member and to a proximal segment of the intact bone at a first angle, an automated control mechanism coupled to the first and second frame members, and a power source for the automated control mechanism. The automated control mechanism may: receive power from the power source, rotate the first frame member to a desired relative rotational position, and position the first bone fixation member at a desired second angle to exert torsional force on the intact bone and externally reduce rotational deformity of the intact bone.

Automated coupled torsional fixators and method of use

A cap for a c-arm medical imaging device with an image intensifier comprises a plate sized and shaped to cover an exterior facing surface of the image intensifier. The plate is transparent to x-rays and has a planar center with a planar outer surface and a planar inner surface to face the image intensifier. A retainer is carried by the plate to retain the plate on the image intensifier.

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Salt Lake City, UT, United States of America

John Colin Stevens