Self-occluding catheter

Details Self-occluding catheter Self-occluding catheter

A - Human Necessities

61

M

A61M 25/18 (2006.01) A61M 1/14 (2006.01) A61M 25/14 (2006.01) A61M 39/26 (2006.01)

Patent

CA 2378339

A self-occluding catheter includes a body portion for connection to extracorporeal equipment. An elongated tubular extension is provided for insertion into a body cavity. The body portion includes a resiliently biased spool supported therein which is slidable between an open and a closed position for alternately permitting and stopping the flow of blood through the catheter during a given medical procedure. The biasing device for resilient biasing the spool preferably comprises one or more magnets fixed within the body portion which generate a magnetic force for urging the magnetically polarized spool to its closed position.

L'invention concerne un cathéter à fermeture automatique comprenant une partie corps destinée à être reliée à un équipement extracorporel, ainsi qu'une extension tubulaire de forme allongée destinée à être insérée dans une cavité corporelle. La partie corps renferme une bobine contrainte de façon élastique à l'intérieur dudit corps, la bobine pouvant coulisser entre une position ouverte et une position fermée, et vice-versa, de manière à permettre le passage et le blocage alternés de l'écoulement de sang dans le cathéter lors d'un acte médical donné. Le dispositif de contrainte assurant la contrainte élastique de la bobine comprend, de préférence, un ou plusieurs aimants fixés à l'intérieur de la partie corps, lesquels aimants génèrent une force magnétique destinée à faire passer la bobine polarisée magnétiquement en position fermée.

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