Fluid pump without dead volume

Details Fluid pump without dead volume Fluid pump without dead volume

1995-09-27

1998-05-05

Weiss, John G.

Surgery

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

Treating material applied to or removed from external...

604294, 222207, 222378, A61M 3500, B65B 3700

Patent

active

057467285

ABSTRACT:
A pump for delivering a fluid contained in an elastic phial includes a pump body and a movable piston fitted inside the pump body. The front end of the pump body is located on a fluid-outlet side, and the front end includes an outlet orifice (11) sealed off by an elastic membrane (24). The outlet orifice is connected to a pump duct (18) inside the pump body, and the pump duct 18 is in turn connected to a fluid-inlet orifice (15). An end (2) of the movable piston is hermetically fitted within the pump duct (18) with slight friction, and the displacement of the end (2) of the piston relative to the portion of the pump body between the inlet orifice (15) and the a stop position (16) near the outlet orifice (11) determines the quantity of fluid expelled from the pump body. The inlet orifice allows a predetermined quantity of fluid to be trapped at the end of the pump duct (18) before being expelled through the outlet orifice (11). With the exception of the front end of the pump body, the pump body and the movable piston are totally enveloped by the elastic phial.

REFERENCES:
patent: 4220264 (1980-09-01), Gamadia
patent: 4623337 (1986-11-01), Maurice
patent: 5085651 (1992-02-01), Py
patent: 5207659 (1993-05-01), Pennaneac'h
patent: 5238156 (1993-08-01), Andris
patent: 5320845 (1994-06-01), Py
patent: 5351862 (1994-10-01), Weag
patent: 5462208 (1995-10-01), Stahley et al.

Affiliated with

Also associated with

Rating

Fluid pump without dead volume does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fluid pump without dead volume, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid pump without dead volume will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-48904