Vacuum pump and shock absorber for artificial limb

Details Vacuum pump and shock absorber for artificial limb Vacuum pump and shock absorber for artificial limb

A - Human Necessities

61

F

A61F 2/80 (2006.01) A61F 2/78 (2006.01) A61F 2/60 (2006.01) A61F 2/66 (2006.01) A61F 2/74 (2006.01)

Patent

CA 2447937

A weight-actuated vacuum pump and shock absorber for an artificial limb. Ambulation causes the vacuum pump, under the influence of the wearer's body weight, to draw air out of the artificial limb socket cavity, producing a vacuum within the socket. The vacuum pulls the residual limb into firm and total contact with the socket and prevents the loss of fluids in the residual limb. A shock absorber acts in conjunction with the vacuum pump to reduce the shock of impact on the wearer caused by ambulation.

Pompe à vide fonctionnant sous l'effet du poids et amortisseur pour membre artificiel. L'ambulation déclenche l'aspiration par la pompe à vide, sous l'influence du poids de l'utilisateur, de l'air contenu dans la cavité de l'emboîture de la prothèse, ce qui produit un vide à l'intérieur de l'emboîture. Ce vide attire le membre résiduel en un contact ferme et absolu avec l'emboîture et empêche la perte de liquides dans ce membre résiduel. Un amortisseur est associé à la pompe à vide afin de limiter le choc de l'impact provoqué par l'ambulation sur l'utilisateur.

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