Safety needle and catheter assembly

A - Human Necessities – 61 – M

Patent

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Details

A61M 25/06 (2006.01)

Patent

CA 2520353

A catheter and introducer needle assembly having an introducer needle (38) with proximal and distal ends (39, 41) attached to a needle hub (40) and a bent area (44) therebetween. The device further includes a tubular catheter (28) having proximal and distal ends (31, 29) in which the introducer needle (38) can be coaxially received within the catheter (28). The device has a hollow catheter hub (30) having a distal end attached to the proximal end of the catheter and is in fluid communication therewith. The assembly includes a needle tip protector (26) having a proximal end (49) and a distal end (50) disposed within the catheter hub (30). The distal end of the protector covers the needle tip when the needle is removed from the catheter. The protector has a proximal opening (72) at its proximal end wherein the bent area (44) is angled away from the proximal opening such that when the needle is removed from the catheter the protector remains attached to the needle.

La présente invention a trait à un ensemble de cathéter et d'aiguille d'introduction comportant une aiguille d'introduction (38) avec des extrémités proximale et distale (39, 41) fixées à un embout d'aiguille (40) et un zone coudée (44) entre celles-ci. Le dispositif comporte également un cathéter tubulaire (28) comprenant des extrémités proximale et distale (31, 29) dans lesquelles l'aiguille d'introduction (38) peut être reçue de manière coaxiale au sein du cathéter (28). Le dispositif possède un embout de cathéter creux (20) présentant une extrémité distale fixée à l'extrémité proximale du cathéter et en communication fluidique avec celle-ci. L'ensemble comprend une gaine de protection de pointe d'aiguille (26) comportant une extrémité proximale (49) et une extrémité distale (50) disposée au sein de l'embout de cathéter (30). L'extrémité distale de la gaine recouvre la pointe de l'aiguille lorsque l'aiguille est extraite du cathéter. La gaine présente une ouverture proximale (72) à son extrémité proximale dans laquelle la zone coudée (44) s'incline en éloignement de l'ouverture proximale de sorte que lors du retrait de l'aiguille du cathéter, la gaine reste attachée à l'aiguille.

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