Passive joint movement device and method for using the same

A - Human Necessities – 61 – H

Patent

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A61H 1/00 (2006.01) A61H 1/02 (2006.01) A63B 21/008 (2006.01) A63B 23/16 (2006.01) A63B 21/02 (2006.01) A63B 23/12 (2006.01)

Patent

CA 2267312

A passive movement deivce for exercising a patient's joint is provided. The device includes a resilient foam section and a casing enclosing the foam section within a sealed chamber. The patient's joint is held in position relative to the sealed chamber by a suitable retainer. A vacuum pump is operatively connected with the sealed chamber to selectively provide application and non-application of a reduced pressure, i.e. below atmospheric, to the sealed chamber. The application of the reduced pressure causes the foam section to collapse thereby exerting a force on the joint which causes the joint to move or bend from a predetermined position. The non-application of the reduced pressure to the sealed chamber causes the foam section to expand thereby exerting a force on the joint which causes the joint to move or bend toward the predetermined position.

L'invention concerne un dispositif de mouvement passif destiné à exercer les articulations d'un patient. Le dispositif comprend une partie en mousse souple ainsi qu'une enveloppe renfermant la partie en mousse à l'intérieur d'une chambre hermétique. Les articulations du patient sont maintenues dans une position donnée par rapport à la chambre hermétique au moyen d'un élément de retenue approprié. Une pompe à vide est reliée fonctionnellement à la chambre hermétique afin de permettre l'application et la non application sélective d'une pression réduite, c'est-à-dire inférieure à la pression atmosphérique, sur la chambre hermétique. L'application de la pression réduite provoque l'abaissement de la partie en mousse exerçant ainsi une force sur l'articulation, ce qui fait bouger ou s'incurver l'articulation à partir d'une position prédéterminée. La non-application de la pression réduite à la chambre hermétique provoque la dilatation de la partie en mousse, exerçant ainsi une force sur l'articulation ce qui fait bouger ou s'incurver l'articulation vers la position prédéterminée.

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