Needle with sealing valve

Details Needle with sealing valve Needle with sealing valve

A - Human Necessities

61

M

A61M 25/06 (2006.01) A61M 5/36 (2006.01) A61M 25/09 (2006.01) A61M 39/22 (2006.01)

Patent

CA 2535600

A needle assembly having a hollow needle with a pointed distal end and a proximal end is disclosed. The assembly also includes a needle hub having a distal hub end fixedly connected to the needle, a proximal hub end having an opening, and a passageway extending therethrough between the distal end and the proximal end. A valve is disposed within the passageway, wherein the valve comprises a sealing member having at least one through-opening disposed therein and a plunger disposed proximate the sealing member and slidable between a first position wherein the at least one through-opening is closed such that the hollow needle and the proximal hub end are not in fluid communication with each other and a second position wherein the plunger biases the at least one through-opening to an open position, such that the hollow needle and the proximal hub end are in fluid communication with each other. A method of using the needle assembly is also disclosed.

Cette invention concerne un ensemble aiguille à aiguille creuse avec extrémité distale pointue et extrémité proximale. L'ensemble comprend également un moyeu d'aiguille dont l'extrémité distale est reliée fixe à l'aiguille et dont l'extrémité proximale présente une ouverture, et un conduit entre l'extrémité distale et l'extrémité proximale. Dans ce conduit est disposée une valve comprenant un élément d'obturation présentant au moins un passage traversant et un plongeur, implanté à proximité de l'élément d'obturation, qui coulisse entre une première position dans laquelle au moins un passage traversant est fermé et où l'aiguille creuse et le moyeu proximal ne sont pas en communication fluidique, et une seconde position dans laquelle le plongeur amène à force au moins un passage traversant en position d'ouverture de sorte que l'aiguille creuse et le moyeu proximal se trouvent en communication fluidique. Est également décrite une méthode d'utilisation de l'ensemble aiguille.

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