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US 5,027,802 AGranted
Multi-mode digital traction system
OwnerPatrick T. Donohueinventor
Life of this patent
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OwnerPatrick T. Donohueinventor
Estimating the term…
A digital traction system is disclosed in a hand application. A common traction plate spanning the length of the fingers and breadth of the hand may be mounted in a dorsal or is a palmar position. In the palmar position, the traction plate is anchored close to the base of the fingers or metacarpophalangeal joints by a hook and loop type fabric fastener such as that sold under the trademark VELCRO connecting the traction plate to a fingerless glove worn by the patient. Tension elements fastened to the traction plate are trained over rollers at the end of the plate and connected to finger traps which grip the patient's fingers. In the dorsal position the plate is anchored by lugs fixed to the plate and passing between the fingers and engaging the crotches between the fingers. An auxiliary traction plate allows the thumb to be treated independently of the fingers if desired.
A traction system for the digits of a human extremity, each digit having a base and a palmar side and the extremity having a plurality of crotches between the digits comprising:
A finger trap for use in applying traction to a digit of a human extremity, of the type which contracts to grip the digit upon the application of a traction force to the distal end of the trap comprising:
A traction system for applying traction to at least one of the metacarpophalangeal joints of a hand, the hand having a plurality of digits and crotches between the digits, the system including a traction frame for anchoring to the hand and means connectable between at least one digit and the frame for applying a traction force through the digit to the corresponding metacarpophalangeal joint characterized in that
A traction system for applying traction to at least one of the metacarpophalangeal joints of a hand, the hand having a plurality of digits and crotches between the digits, the system including a traction frame for anchoring to the hand and means connectable between at least one digit and the frame for applying a traction force through the digit to the corresponding metacarpophalangeal joint characterized in that the system includes a glove configured to be pulled onto the hand so as to engage at least one of the crotches between the digits and in that the traction frame is anchored to the hand by means of the glove and so that, in use, retraction of the traction frame under the action of the traction force applying means is resisted substantially by engagement of the glove with the at least one of the crotches between the digits.
Dependencies are inferred from the claim text.