Medical device for injecting liquid

Details Medical device for injecting liquid Medical device for injecting liquid

2009-06-01

2011-11-22

Stigell, Theodore (Department: 3767)

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

C604S505000

Reexamination Certificate

active

08062281

ABSTRACT:
The invention relates to a device for injecting liquid, comprising a piece of tubing on which there is situated at least a first liquid occlusion system. According to the invention, a regulation system is situated upstream from the first occlusion system, the two systems defining an intermediate segment in which the pressure, in the absence of injection, is greater than the pressure that exists downstream from the first occlusion system so as to direct any leak of liquid from the first occlusion system downstream. The invention is applicable to a pump used for injecting contrast liquid for medical imaging.

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patent: 5533996 (1996-07-01), Murphey et al.
patent: 5549566 (1996-08-01), Elias et al.
patent: 5569181 (1996-10-01), Heilman et al.
patent: 5569208 (1996-10-01), Woelpper et al.
patent: 5843037 (1998-12-01), Uber, III

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