A catheter introduction syringe

A - Human Necessities – 61 – M

Patent

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Details

A61M 25/06 (2006.01) A61M 5/00 (2006.01) A61M 25/01 (2006.01)

Patent

CA 2049044

A catheter introduction syringe (10) for the introduction of a catheter or catheter guide wire (A) into a patient's body, the catheter introduction syringe (10) comprises a hollow syringe barrel (12) including a fluid chamber, a plunger (14) movable between an advanced and retracted position slidably disposed within the fluid chamber, a guide passage formed longitudinally through the hollow syringe barrel (12) and the plunger (14), the guide passage including an aperture (27) disposed within the fluid chamber and a valve assembly disposed in operative relationship relative to the guide passage to prevent passage of fluid through the guide passage during flushing or aspirating of the catheter introduction syringe (10) or during the introduction or withdrawal of a catheter or catheter guide wire (A) through the guide passage and to permit fluid to flow from the patient's body into the fluid chamber through the aperture (27), the guide passage being configured to maintain the catheter or catheter guide wire (A) in a substantially straight configuration while the catheter or catheter guide wire (A) is disposed within the guide passage.

Seringue d'introduction de cathéter (10) permettant d'introduire un cathéter ou un fil de guidage de cathéter (A) dans le corps d'un patient. Ladite seringue d'introduction de cathéter (10) comprend un cylindre de seringue creux (12) comportant une chambre de fluide, un piston (14) mobile entre une position avancée et une position rétractée qui coulisse dans ladite chambre de fluide, un passage de guidage formé longitudinalement à travers le cylindre de seringue creux (12) et le piston (14), ledit passage étant pourvu d'une ouverture (27) dans la chambre de fluide et d'un clapet monté de telle sorte par rapport audit passage de manière à empêcher activement tout écoulement de fluide au travers du passage, pendant que la seringue d'introduction du cathéter (10) est vidée ou remplie ou pendant l'introduction ou le retrait du cathéter ou fil de guidage de cathéter (A) à travers le passage de guidage, et à permettre au fluide de passer depuis le corps du patient dans la chambre de fluide par l'ouverture (27), le passage de guidage étant conçu pour maintenir le cathéter ou fil de guidage de cathéter (A) dans une position sensiblement droite pendant l'introduction du cathéter ou fil de guidage de cathéter (A) dans ledit passage.

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