Automatic locking valve for medication injection

Details Automatic locking valve for medication injection Automatic locking valve for medication injection

2004-08-05

2008-01-15

Sirmons, Kevin C. (Department: 3767)

Surgery

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

Treating material introduced into or removed from body...

C604S151000, C604S408000, C604S410000, C604S503000

Reexamination Certificate

active

07318819

ABSTRACT:
An automatic locking valve for safely administering a dose of medication is disclosed. The automatic locking valve comprises a valve housing defined with a space and formed with input and output ports for intaking and discharging the medication, a spool-shaped on/off member having a diameter smallest at the center thereof and being tapered to linearly increase toward upper and lower portions of the on/off member so that the on/off member moves up and down depending on a closed state of the door, and a membrane attached to the space of the valve housing such that the membrane expands toward a lower portion of the space due to an elasticity of the membrane when the tube is blocked. The medication can be safely and accurately administered under a condition of installation with the door closed above the tube.

REFERENCES:
patent: 4078562 (1978-03-01), Friedman
patent: 4304260 (1981-12-01), Turner et al.
patent: 4739770 (1988-04-01), Stephens et al.
patent: 6146360 (2000-11-01), Rogers et al.
patent: 6863083 (2005-03-01), Danby et al.

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