Patient controlled analgesia apparatus

Details Patient controlled analgesia apparatus Patient controlled analgesia apparatus

Filed on

1987-10-13

Date issued

1989-05-09

Examiner

Pellegrino, Stephen C.

Patent Class

Surgery

SubClass

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

SubSubClass

Treating material introduced into or removed from body...

Other Related Categories

604236, A61M 500

Type

Patent

Status

active

Patent number

048285510

Description

ABSTRACT:
The subject patient controlled analgesia (PCA) apparatus is mechanical/hydraulic and comprises a reservoir and a pump operable by the patient for dispensing medicine from the reservoir unto the patient's IV system in incremental doses. The pump capacity per stroke may be adjustable, thereby adjusting the size of each dose dispensed. Timing apparatus assures that a specific interval of time (the lockout interval) must pass between sequential dosage dispensations. Check valves in the passages for pumping the medicine and filling the apparatus are double in series to reduce chances of malfunction or misuse due to valve failure. The quantity of medicine in the reservoir is indicated.

REFERENCES:
patent: 4564360 (1986-01-01), Young et al.
patent: 4610666 (1986-09-01), Pizzino

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