Device for exerting an external pressure on a human body
First Claim
1. A device for exerting an external pressure on a part of a human body comprising a garment being adapted to surround the body part in a form-fitting manner and including at least one component of memory material which, by heating, changes its shape so as to bring about a contraction of said garment and, by cooling, returns to a previous shape so as to interrupt said contraction.
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Accused Products
Abstract
The invention relates to a device (1, 3, 37) for exerting an external pressure on a human body part. The device, which is designed to surround the body part with comfortable fit, comprises components (15, 19 and 28) of memory material, such as memory metal. By heating the components, e.g. by conducting electric current through them, they will assume a different shape, e.g. a shorter length, the device being adapted to be contracted so as to "squeeze" the body part. When the components are thereafter cooled, they will resume their previous shape and the contraction ceases. The device is intended, inter alia, to prevent pooling of blood in body parts of a pilot when subjected to G-forces, and to increase, by recurring contractions, the blood circulation in the body parts surrounded by the device.
90 Citations
31 Claims
- 1. A device for exerting an external pressure on a part of a human body comprising a garment being adapted to surround the body part in a form-fitting manner and including at least one component of memory material which, by heating, changes its shape so as to bring about a contraction of said garment and, by cooling, returns to a previous shape so as to interrupt said contraction.
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19. A device for exerting an external pressure on a part of a human body comprising a supporting base being adapted to surround the body part in a form-fitting manner, a component of memory metal, and a mechanical element influenced by said component to pull together said base to exert the pressure upon heating of said component.
- 20. A device for exerting external pressure to a human body part, comprising at least one component of memory material which changes its shape upon activating to cause the device to exert said pressure on the body part and upon deactivating to discontinue said pressure.
Specification