One hand push button fast flush device

Details One hand push button fast flush device One hand push button fast flush device

1995-06-07

1998-04-21

Nasser, Robert L.

Surgery

Truss

Pad

128675, 251117, 137902, A61B 500

Patent

active

057408106

ABSTRACT:
A flush device for an intravenous blood pressure monitoring system has a main body which includes a continuous capillary flow channel and a fast flush channel. The continuous capillary flow channel is separated from the fast flush channel by a median wall. A fast flush opening in the median wall is blocked by an elastomeric member. When the member is distended, the fast flush opening is unblocked. An alternative embodiment of the fast flush device has a tubular body with a capillary channel formed on an inner wall. An elastomeric member contained within the tubular body enables flow to the capillary channel when the elastomeric member is in an initial position. When the elastomeric member is in a distended position fluid is allowed to overflow the capillary channel thus permitting a fast flush flow. Another alternative embodiment of the flush device comprises a tubular body having a cylinder disposed within, with a fluid entry chamber defined in an annular space and a fluid exit chamber defined by the interior of the cylinder. A microbore in the cylinder wall enables continuous capillary flow from the inlet to the outlet. A fast flush opening, blocked by an elastomeric member, is also provided in the cylinder wall. When the member is distended, the fast flush opening is unblocked.

REFERENCES:
patent: 3675891 (1972-07-01), Reynolds
patent: 4341224 (1982-07-01), Stevens
patent: 4550748 (1985-11-01), Nunez
patent: 4696305 (1987-09-01), von Berg
patent: 4936542 (1990-06-01), Beard

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