Dual port syringe

Details Dual port syringe Dual port syringe

A - Human Necessities

61

M

A61M 5/20 (2006.01) A61M 5/50 (2006.01)

Patent

CA 2309036

A dual port syringe has an upper port for connection to a fluid reservoir and a lower port for delivery of the medical fluid under pressure to a patient. A first valve is connected between the fluid reservoir and the upper port, and second valve is connected between the lower port and the patient. During a fill operation, a piston is moved within the syringe to drawn fluid from the reservoir into the syringe through the upper port. During injection operation, the piston moves in an opposite direction to force fluid out of the syringe through the lower port.

Cette invention concerne une seringue à deux orifices qui possède un orifice supérieur connecté à un réservoir de fluide, ainsi qu'un orifice inférieur servant à administrer un fluide médical sous pression à un patient. Un premier clapet est monté entre le réservoir de fluide et l'orifice supérieur, tandis qu'un second clapet est monté entre l'orifice inférieur et le patient. Lors d'une opération de remplissage, le piston se déplace dans la seringue de manière à aspirer le fluide depuis le réservoir jusque dans ladite seringue par l'orifice supérieur. Lors d'une opération d'injection, le piston se déplace dans la direction opposée de manière à expulser le fluide hors de la seringue par l'orifice inférieur.

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