Drug dispensing system

• US 4,624,661 A
• Filed: 05/06/1985
• Issued: 11/25/1986
• Est. Priority Date: 11/16/1982
• Status: Expired due to Fees

• Current Assignee: Dennis T. Grendahl
• Original Assignee: Surgidev Corporation (Santen Pharmaceutical Company Limited)
• Inventors: Arimond, Timothy V.
• Primary Examiner(s): Howell, Kyle L.
• Assistant Examiner(s): Jaworski, Francis J.
• Application Number:
  US06/730,434
• Time in Patent Office: 568 Days
• Field of Search: 128/DIG. 12-DIG. 13, 604/67, 604/151
• US Class Current: 604/151
• CPC Class Codes: A61M 2005/14208 with a programmable infusion control system, characterised by the infusion program
• CPC Class Codes: A61M 5/172 electrical or electronic A61M5/16804, A61M5/16831 take precedence
• CPC Class Codes: Y10S 128/12 Pressure infusion

Abstract

Drug dispensing system for dispensing of drugs from a reservoir or external reservoir such as a standard I.V. bag through a drug dispenser according to a preselected algorithm controlling a motor where a CPU pumps the drug. An external controller for the drug dispenser stores a plurality of parameters including a patient number, name, drug dispenser number, date, time, drug, an algorithms for dispensing the drug including dosage levels and frequency of dosage where the algorithm is stored in the external controller and the program is subsequently stored in the CPU of the drug dispenser for subsequent controlling of the motor driving the pump for dispensing of the drug. The external controller also includes an LCD display for medical personnel interaction and a printer for hard copy storage of the selected algorithm and other information as programmed into the external controller by a keyboard. A flexible cord connects the external controller to a drug dispenser for programming the CPU for an algorithm for dispensing a drug by the drug dispenser.

Claims

1. Drug dispensing system comprising:

a. means for external programming control including a first CPU including a first memory means including a plurality of drug dispensing algorithms stored therein, key pad input means connected to said first memory means for selecting one of said algorithms and inputting parameters for said algorithm therein, display for self-prompting as well as viewing-selected input, printer means providing hard copy; and

,

b. means for drug pump dispensing including a second CPU including second memory means for storing an algorithm with selected parameters inputted only from said external programming control means, discrete real-time clock and calendar means for controlling predetermined levels of drug dispensing and connected to said second CPU, drug reservoir means, pump means connected to said drug reservoir means for pumping a drug through a tube to a patient, motor means for said pump means connected to said second memory means for driving said pump means, and visual indicator means indicating status of said pump means.

2. System of claim 1 wherein said external programming control means includes means for inputting parameters including patient identification number, patient name, drug dispenser number, date, time, drug identification number, drug dispensing algorithm, dosage level, and frequency of dosage.

3. System of claim 1 wherein said external programming control includes auditory feedback means for providing indication of digital depression of said key pad input means.

4. System of claim 1 wherein said display comprising an alphanumeric multiplexed character LCD display shifting from left to right.

5. System of claim 4 wherein said character display comprises 22 characters.

6. System of claim 5 wherein each character comprises 16 elements.

7. System of claim 1 wherein said printer means provides hard copy.

8. System of claim 1 wherein said printer means provides electrostatic hard copy.

9. System of claim 1 wherein said second memory means includes means for storing amount of drug dispensed.

10. System of claim 1 wherein said second memory means includes backup emergency power source means.

11. System of claim 1 wherein said second memory means includes means for dispensing drug from either an ampule or an I.V. bottle.

12. System of claim 1 wherein said display comprises a video display.

13. System of claim 1 comprising external computer means for storing algorithms and connected to said second CPU.

14. System of claim 1 comprising means for programming said second CPU in three dispensing modes of a continuous flow mode, a bolus per time interval mode, and a 24-hour clock mode.

15. System of claim 1 comprising an I/O means connected to said second CPU.

16. System of claim 15 wherein said I/O means is connected to an external modem.

17. System of claim 16 including means for connecting said external modem to a telephone line.

18. System of claim 15 wherein said I/O means includes means for receiving external interrogation by a computer means and external programming by a computer means.

19. System of claim 15 comprising external programming source means connected to said I/O means.

20. System of claim 1 wherein said means for drug pump dispensing is ambulatory.

21. System of claim 1 comprising internal rechargeable power source means powering said drug dispensing means.

22. System of claim 1 wherein said means for drug pump dispensing functions independently of alarm functions.

23. System of claim 1 wherein said algorithms provide for drug dosages over real time.

24. System of claim 1 wherein said second CPU operates as a UART at 300 baud.

25. System of claim 1 wherein each said algorithm includes dosage levels and frequency of dosages.

26. Drug dispensing system comprising:

a. means for external programming control including a first CPU including a first memory, said first memory including a plurality of drug dispensing algorithms stored therein, key pad input means connected to said first memory for selecting one of said algorithms and inputting parameters for said algorithm therein, display for self prompting as well as viewing selected input connected to said first CPU and a printer means providing hard copy connected to said CPU; and

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b. means for drug pump dispensing including a second CPU including a second memory for storing an algorithm and selected parameters inputted only from said external control means, discrete real-time clock and calendar means for controlling predetermined levels of drug dispensing and connected to said second CPU, drug reservoir means, pump means connected to said drug reservoir means for pumping a drug through a tube to a patient, motor means for said pump means connected to said second memory for driving said pump means, said pump means powered by said second CPU in a continuous flow mode, bolus per time interval mode, and a 24-hour clock mode including dosage levels and frequency of dosages, and visual indicator means connected to said second CPU and indicating status of said pump means.

27. Drug dispensing system comprising CPU means including memory means for storing drug dispensing algorithms with predetermined parameters, drug reservoir means, pump means connected to said drug reservoir means for pumping said drug through a tube to a patient, motor means for said pump means connected to said CPU means for driving said pump means, switch means mechanically coupled to said pump means for generating a pump status signal in response to operation of said pump means, means connecting said switch means to said CPU means to convey said status signal to said CPU means, said pump means powered by said CPU means in accordance with selected predetermined parameters in said memory means of said CPU means in a continuous flow mode, bolus per time interval mode, and a 24-hour clock mode including dosage level and frequency of dosage, and visual indicator connected to said CPU means and responsive to said pump status signal for indicating status of said pump means.