Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1997-10-14
1999-10-19
Hirsch, Paul J.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604154, A61M 500
Patent
active
059680172
ABSTRACT:
A fluid infusion system includes a pump having a body that slidably interacts with a handle. The body includes a valve housing fluid coupled with an inlet passageway, an outlet passageway, and a dispensing barrel. A finger rest rigidly projects from the dispensing barrel. A loading chamber is recessed within the finger rest and is configured to receive a fluid supply syringe. A plunger, mounted to the handle, is slidably received within the dispensing barrel. As the plunger is advanced within the barrel, fluid is dispensed from the pump. As the plunge is retracted within the barrel, the barrel is automatically filed with a fluid. The nozzle of the pump is fluid coupled to a hemostasis valve which is in turn fluid coupled to an infusion catheter. The infusion catheter has a distal end with an enlarged tip opening and a plurality of small infusion holes extending through the side thereof. An annular sensing ridge radially inwardly projects from the interior of the catheter at the tip opening. An occluding wire has an enlarged occluding ball positioned at the end thereof and is configured to occlude the distal end of the catheter. Projecting from the occluding ball on the side opposite of the positioning wire is a coiled spring wire. The spring wire vibrates against the sensing ridge as it passes therethrough.
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Biche Joseph E.
Carlstrom Stephen W.
Lampropoulos Fred P.
Mottola Jim D.
Mullins Darwin L.
Hirsch Paul J.
Merit Medical Systems Inc.
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