Method and apparatus for the delivery of contrast fluid to a...

Details Method and apparatus for the delivery of contrast fluid to a... Method and apparatus for the delivery of contrast fluid to a...

2003-02-11

2009-11-17

Lucchesi, Nicholas D (Department: 3763)

Surgery

Controlled release therapeutic device or system

C604S247000, C600S432000

Reexamination Certificate

active

07618412

ABSTRACT:
A contrast fluid delivery method and system includes a multiple-reuse filling section for attachment by conduit to a contrast fluid supply container, and a delivery section that is removably attached to the filling section for delivering contrast fluid held in the filling section to a patient. The filling section includes a main body having a fluid chamber, a contrast fluid filling inlet with a gravity-operated valve, an opening for connecting an operable power syringe, and a contrast fluid outlet fed through a spring-loaded one-way check valve. The delivery section includes a first delivery conduit connected between the contrast fluid outlet of the main body and the fluid inlet of an inline aspirator syringe, and a second delivery conduit connected at one end to a fluid outlet of the aspirator syringe and at the other to a catheter for delivering the contrast fluid to a patient. The aspirator syringe includes a spring-loaded plunger that is operatively depressed and released to confirm and assure patency of the delivery line before sustained injection of the desired volume of contrast agent. The filling section is isolated from contamination by the downstream delivery section and may be used repeatedly for successive patients, whereas the delivery section is discarded and replaced after each patient use.

REFERENCES:
patent: 5069663 (1991-12-01), Sussman
patent: 5743872 (1998-04-01), Kelly
patent: 6471674 (2002-10-01), Emig et al.

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