Meter for electrically measuring and recording injection syringe doses

• US 5,628,309 A
• Filed: 01/25/1996
• Issued: 05/13/1997
• Est. Priority Date: 01/25/1996
• Status: Expired due to Term

• Current Assignee: Health Hero Network Incorporated (Robert Bosch GmbH)
• Original Assignee: RAYA Systems Incorporated
• Inventors: Brown, Stephen J.
• Primary Examiner(s): Sykes, Angela D.
• Assistant Examiner(s): YARNELL, BRYAN KEITH
• Application Number:
  US08/591,308
• Time in Patent Office: 474 Days
• Field of Search: 128/632, 128/637, 128/DIG. 1, 604/65, 604/68, 604/207, 604/211, 604/218, 604/224, 604/245, 604/66, 604/67, 73/290 R, 73/291, 141/18, 141/311 R
• US Class Current: 600/310
• CPC Class Codes: A61M 2205/52 with memories providing a history of measured variating parameters of apparatus or patient
• CPC Class Codes: A61M 5/3129 Syringe barrels A61M5/3205 and A61M5/50 take precedence
• CPC Class Codes: A61M 5/315 Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
• CPC Class Codes: A61M 5/31525 Dosing burettes, pipettes B01L3/02
• CPC Class Codes: A61M 5/31535 Means improving security or handling thereof, e.g. blocking means, means preventing insufficient dosing, means allowing correction of overset dose
• CPC Class Codes: A61M 5/31551 including axial movement of dose setting member
• CPC Class Codes: A61M 5/31556 Accuracy improving means
• CPC Class Codes: A61M 5/31561 using freely adjustable volume steps
• CPC Class Codes: A61M 5/31568 Means keeping track of the total dose administered, e.g. since the cartridge was inserted
• CPC Class Codes: A61M 5/3158 performed by axially moving actuator operated by user, e.g. an injection button
• CPC Class Codes: A61M 5/31591 Single dose, i.e. individually set dose administered only once from the same medicament reservoir, e.g. including single stroke limiting means
• CPC Class Codes: Y10S 128/01 Motorized syringe

Abstract

A method and device for electrically measuring and recording injection syringe doses. The device has a voltage generator for applying a voltage to an input terminal of a syringe. The device also has a measuring instrument for measuring an electrical response from the syringe. The electrical response results from the voltage and indicates the size of the dose in the syringe. An electronic memory records the measurement of the electrical response so that there is an electronic record of the dose injected. A data port is connected to the electronic memory so that the dose records may be transmitted to a host computer.

Claims

1. A device for electrically measuring and recording a dose contained in a syringe, said syringe having an input terminal, said device comprising:

a) an input contact for contacting said input terminal;

b) a holder for holding said syringe, said holder and said input contact being positioned such that when said syringe is inserted in said holder, said input contact contacts said input terminal;

c) a voltage generator connected to said input contact for applying a voltage to said input terminal when said input contact contacts said input terminal;

d) a measuring means for measuring an electrical response from said syringe, said electrical response resulting from said voltage and indicating a size of said dose; and

e) an electronic recording means for recording the measurement of said electrical response.

2. The device of claim 1, further comprising a data port connected to said electronic recording means for transmitting recorded measurements from said electronic recording means to a host computer.

3. The device of claim 1, further comprising a testing means for testing a physical condition of a patient and for producing a digital value representative of said physical condition, said testing means being connected to said electronic recording means such that said electronic recording means records said digital value representative of said physical condition.

4. The device of claim 3, wherein said testing means comprises a blood glucose meter and said physical condition comprises a blood glucose level.

5. The device of claim 3, further comprising a display means connected to said testing means for displaying said digital value representative of said physical condition.

6. The device of claim 1, further comprising a converting means for converting the measurement of said electrical response into a digital value representative of said dose, said converting means being connected between said measuring means and said electronic recording means such that said electronic recording means records said digital value representative of said dose.

7. The device of claim 6, further comprising a display means connected to said converting means for displaying said digital value representative of said dose.

8. The device of claim 1, wherein said device is installed in a housing sufficiently compact to enable said device to be hand-held and carried by a patient.

9. The device of claim 1, wherein said syringe has an output terminal, said electrical response comprises an electric current flowing between said input terminal and said output terminal, and wherein said measuring means comprises:

a) an output contact for contacting said output terminal, said output contact being positioned such that when said syringe is placed in said holder, said output contact contacts said output terminal; and

b) an ammeter connected to said output contact for measuring said electric current at said output terminal when said output contact contacts said output terminal.

10. A method for electrically measuring and recording a dose contained in a syringe, said syringe having an input terminal, said method comprising the following steps:

a) providing a metering device having a holder for said syringe, an input contact for contacting said input terminal, and a voltage generator connected to said input contact;

b) inserting said syringe into said holder such that said input contact contacts said input terminal;

c) applying to said input terminal a voltage generated by said voltage generator;

d) measuring an electrical response from said syringe, said electrical response resulting from said voltage and indicating a size of said dose; and

e) recording the measurement of said electrical response in an electronic memory.

11. The method of claim 10, further comprising the step of transmitting recorded measurements from said electronic memory to a host computer.

12. The method of claim 10, further comprising the steps of converting the measurement of said electrical response into a digital value representative of said dose and recording said digital value in said electronic memory.

13. The method of claim 12, further comprising the step of displaying said digital value on a display.

14. The method of claim 12, further comprising the step of transmitting said digital value from said electronic memory to a host computer.

15. The method of claim 10, further comprising the steps of testing a physical condition of a patient, producing a digital value representative of said physical condition, and recording said digital value in said electronic memory.

16. The method of claim 15, further comprising the step of displaying said digital value on a display.

17. The method of claim 15, further comprising the step of transmitting said digital value from said electronic memory to a host computer.