Medical valve with tire seal

A - Human Necessities – 61 – M

Patent

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Details

A61M 39/26 (2006.01) A61M 39/04 (2006.01)

Patent

CA 2240419

A medical valve has a body which includes a wall structure defining an internal cavity having a proximal end and a distal end. The proximal end has an opening sufficiently large to receive a tip of a delivery end of a medical implement which transfers fluid through the delivery end. The valve also has a spike with a tip contained within the cavity and at least one hole located distal the tip. The spike has a passageway in communication with the hole that allows fluid to flow through the spike. The valve also has a resilient seal in the cavity which surrounds the spike. The seal is adapted to be moved into a compressed state upon insertion of the tip of the medical implement into the opening. The seal is sufficiently resilient to return to a decompressed state upon removal of the tip of the medical implement from the opening. In addition, the seal has at least two tires in contact with the spike proximal the hole, preventing the flow of fluid through the valve when the seal is in the decompressed state.

La présente invention concerne une valve médicale dont le corps inclut une structure de paroi définissant une cavité interne qui présente une extrémité proximale et une extrémité distale. L'extrémité proximale comporte un orifice suffisamment grand pour accueillir le bout de l'extrémité d'administration d'un appareil médical qui transfère du fluide via son extrémité d'administration. La valve comporte également une pointe dont un bout est contenu dans la cavité, un trou se trouvant en position distale par rapport au bout. La pointe comporte un passage d'écoulement en communication avec le trou, ce qui permet au fluide de s'écouler au travers de la pointe. La valve comporte également dans la cavité entourant la pointe un obturateur élastique. Cet obturateur est conçu pour se placer en situation de compression dès l'insertion du bout de l'appareil médical dans l'orifice. L'obturateur est suffisamment élastique pour revenir en état détendu dès le retrait du bout de l'appareil médical de l'orifice. En outre, l'obturateur comporte, en position proximale par rapport au trou, au moins deux bourrelets en contact avec la pointe, ce qui empêche l'écoulement du fluide par la valve lorsque l'obturateur est à l'état détendu.

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