Device for monitoring and controlling self-administered intravenous drug dosage

• US 4,275,727 A
• Filed: 01/07/1980
• Issued: 06/30/1981
• Est. Priority Date: 01/07/1980
• Status: Expired due to Term

• Current Assignee: Michael Keeri-Szanto
• Original Assignee: Michael Keeri-Szanto
• Inventors: Keeri-Szanto, Michael
• Primary Examiner(s): Pellegrino, Stephen C.
• Application Number:
  US06/109,928
• Time in Patent Office: 540 Days
• Field of Search: 128/214 E, 128/214 R, 128/213, 128/DIG. 13, 222/14-22
• US Class Current: 604/66
• CPC Class Codes: A61M 5/1452 pressurised by means of pistons
• CPC Class Codes: Y10S 128/13 Infusion monitoring

Abstract

A device for monitoring and controlling the operation of a motorized syringe to dispense a predetermined drug dosage comprises, according to one aspect of this invention, a combination of a trigger, a first signal monitor, a first timer, a second signal monitor and a second timer. The trigger is operable by the patient to initiate a demand signal indicative of a demand for an individual drug dose. The first signal monitor serves to record the total number of occasions on which a demand signal is initiated by operation of the trigger. The first timer receives the demand signal and selectively rejects the demand signal or emits the demand signal as an inject signal. The second signal monitor records the total number of occasions on which the first timer emits a demand signal. The second timer receives the inject signal and is operable upon receipt of the inject signal to activate a motorized syringe for a preselected time period to dispense a predetermined individual dose of drug.

Claims

1. A device for monitoring and controlling the operation of a motorized syringe to dispense a predetermined drug dosage comprising;

(a) trigger means operable by a patient to initiate a demand signal indicative of a demand for an individual drug dose,

(b) first signal monitor means adapted to record the total number of occasions on which said demand signal is initiated by operation of said trigger means,

(c) first timer means for receiving said demand signal and selectively rejecting said demand signal or emitting said demand signal as an inject signal,

(d) second signal monitor means adapted to record the total number of occasions on which said first timer means emits a demand signal,

(e) second timer means for receiving said inject signal, said second timer means being operable on receipt of said inject signal to activate said motorized syringe for a preselected timer period to dispense a predetermined individual dose of drug.

2. A device for monitoring and controlling self-administration of intravenous drug dosages comprising;

(a) drug dispensing means operable to dispense a drug dosage to a patient,

(b) trigger means operable by a patient to initiate a demand signal indicative of a patient'"'"'s demand for a drug dosage,

(c) first signal monitor means adapted to record the total number of occasions on which said demand signal is initiated by operation of said trigger means,

(d) first timer means for receiving said demand signal and selectively rejecting said demand signal or emitting said demand signal as an inject signal,

(e) second signal monitor means adapted to record the total number of occasions on which an inject signal is emitted by said first timer,

(f) second timer means for receiving the inject signal, said second timer means being operable on receipt of an inject signal to activate said drug dispensing means for a preselected time period to dispense a predetermined individual dose of said drug.