Catheter adapter assembly

A - Human Necessities – 61 – M

Patent

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Details

A61M 39/00 (2006.01) A61M 39/12 (2006.01)

Patent

CA 2214067

An adapter assembly is provided for fluid communication and mechanical connection between a catheter and a syringe. The adapter assembly includes a generally tubular nose having opposed proximal and distal ends. A wall is disposed at the distal end and includes an aperture dimensioned for receiving the catheter therethrough. A compressible plug is received in the open proximal end of the nose and seats against the wall. The plug includes an axial passage for receiving the catheter. Outer portions of the plug are tapered near the proximal end. The assembly further includes a hub having opposed proximal and distal ends. The proximal end of the hub includes luer projections for threaded engagement with a luer collar of a syringe. The distal end of the hub is threadedly engageable in the opened proximal end of the nose. Internal portions of the hub adjacent the distal ends are tapered and dimensioned to gradually compress the plug into fluid-tight engagement against the catheter without generating occlusion.

Ensemble adapteur permettant la communication des liquides et le raccordement mécanique entre un cathéter et une seringue. L'adapteur comprend une buse de forme généralement tubulaire pourvue d'une extrémité proximale et d'une extrémité distale. Une paroi installée à l'extrémité distale comporte une ouverture dimensionnée de façon à recevoir le cathéter. Un bouchon compressible s'ajuste à l'extrémité proximale ouverte de la buse et s'appuie contre la paroi. Ce bouchon comporte un passage axial destiné à recevoir le cathéter. Les portions externes du bouchon sont effilées près de l'extrémité proximale. L'assemblage comprend en outre un pivot ayant une extrémité proximale et une extrémité distale opposées. L'extrémité proximale de ce pivot comporte des projections Luer dans lesquelles on peut visser une collerette Luer d'une seringue. Son extrémité distale peut être vissée dans l'extrémité proximale ouverte de la buse. Les parties internes du pivot adjacentes aux extrémités distales sont effilées et dimensionnées de façon à compresser graduellement le bouchon jusqu'à ce qu'il soit étanche contre le cathéter sans provoquer d'occlusion.

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