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US 4,658,441 AGranted
One piece thumb support and protector
OwnerSteven A. Smithinventor
Life of this patent
Estimating the term…
Abstract
Disclosed is a thumb support for the human hand comprising a support piece having a cradle portion installable around the thenar eminence and the metacarpophalangeal joint of the thumb and a tab portion wrappable over the thumb/index web space. When the cradle portion and tab portion are properly installed, they create a frustoconically shaped cone portion which acts to enclose the metacarpophalangeal joint of the thumb and isolate the index finger and the thumb and support the metacarpophalangeal joint of the thumb.
Claims2
A thumb support for the human hand, comprising:
- a support piece defining a plane and comprising:
- a cradle portion installable at least partially around the thenar eminence and the metacarpophalangeal joint of the thumb;
- a tab portion wrappable over the thumb/index web space and when so wrapped acting to at least partially enclose the cradle portion, the tab portion being of sufficient rigidity to substantially prevent the thumb from moving in a plane defined by the thumb and an index finger of the human hand;
- a means for anchoring the cradle portion of the support piece to the hand;
- a means for securing the tab portion in its position as wrapped over the thumb/index web space;
- and,
- the cradle portion when so installed and the tab portion so wrapped comprise a frusto-conically shaped cone portion, which cone portion acts to enclose at least the metacarpophalangeal joint or the thumb and acts to isolate the index finger and the thumb.
4 more elements
Dependencies are inferred from the claim text.