Pressure relief devices for use with balloon catheters

Details Pressure relief devices for use with balloon catheters Pressure relief devices for use with balloon catheters

A - Human Necessities

61

M

A61M 25/10 (2006.01) A61M 5/315 (2006.01)

Patent

CA 2510920

A pressure relief mechanism is incorporated into a modified syringe-type inflation device that may be coupled to a balloon catheter for inflating and deflating the balloon. An engagement mechanism selectively engages and disengages from a threaded shaft for advancing or withdrawing a plunger placed in slidable, yet sealing fit within a cylindrical chamber. In a first engaging position, the threaded shaft may be forcibly advanced or withdrawn in the cylindrical chamber, while in a second disengaged position, the plunger may be quickly pulled back.

L'invention concerne un mécanisme de surpression incorporé dans un dispositif de gonflement de type seringue modifié susceptible d'être couplé avec un cathéter à ballonnet pour le gonflement et le dégonflement du ballonnet. Un mécanisme de couplage assure sélectivement le couplage et le découplage par rapport à un arbre fileté, pour l'avance ou le retrait d'un plongeur placé en ajustement coulissant mais étanche dans une chambre cylindrique. Selon une première position de couplage, cet arbre peut être poussé en avant ou tiré en arrière, dans la chambre cylindrique, et selon une seconde position de découplage, le plongeur peut être retiré rapidement.

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