Systems and methods for metered delivery of medication using stored energy

• US 20090062747A1
• Filed: 08/29/2007
• Published: 03/05/2009
• Est. Priority Date: 08/29/2007
• Status: Abandoned Application

• Current Assignee: Calibra Medical, Inc. (CeQur SA)
• Original Assignee: Seattle Medical Technologies
• Inventors: Saul, Tom A.
• Application Number:
  US11/897,534
• Publication Number:
  US 20090062747A1
• Time in Patent Office: Days
• US Class Current: 604/207
• CPC Class Codes: A61M 2005/14268 with a reusable and a disposable component
• CPC Class Codes: A61M 2005/14506 mechanically driven, e.g. spring or clockwork
• CPC Class Codes: A61M 2205/581 by audible feedback
• CPC Class Codes: A61M 2205/582 by tactile feedback
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/14586 pressurised by means of a flexible diaphragm

Abstract

Systems and methods for storing and dispensing a fluid on-demand includes a reservoir; an energy storage device coupled to the reservoir to store energy, wherein the energy is mechanically generated by a user'"'"'s action; a cannula assembly adapted to be positioned on a patient and coupled to the reservoir prior to use; and a sequencer coupled to the reservoir and the energy storage device to allow the fluid to be dispensed upon command.

Claims

1. An apparatus to store and dispense a fluid on-demand, comprising:

a reservoir;

an energy storage device coupled to the reservoir to store energy, wherein the energy is mechanically generated by a user'"'"'s action;

a cannula assembly adapted to be positioned on a patient and coupled to the reservoir prior to use; and

a sequencer coupled to the reservoir and the energy storage device to allow the fluid to be dispensed upon command.

2. The apparatus of claim 1, comprising a metering assembly coupled to the reservoir.

3. The apparatus of claim 2, wherein the metering assembly comprises:

a. an input valve;

b. a metering chamber coupled to the input valve; and

c. an output valve coupled to the metering chamber.

4. The apparatus of claim 1, wherein the reservoir is configured as a ring.

5. The apparatus of claim 4, wherein the reservoir comprises a rolling bellows.

6. The apparatus of claim 1, comprising a metering assembly coupled to the reservoir, wherein the metering assembly is encircled by the reservoir.

7. The apparatus of claim 1, wherein the energy storage device stores energy when the reservoir is filled or when the reservoir is placed on the patient.

8. The apparatus of claim 1, wherein the energy storage device comprises a spring wound or compressed by the user'"'"'s action.

9. The apparatus of claim 1, comprising an interlocked user interface adapted to be actuated by a user.

10. The apparatus of claim 9, wherein the interlocked user interface comprises an energy delivery button and an energy release button.

11. The apparatus of claim 10, wherein the energy delivery button charges an energy storage device.

12. The apparatus of claim 10, wherein the energy delivery button winds or compresses a spring.

13. The apparatus of claim 10, wherein the release button allows energy to be discharged from a dispensing energy storage device to dispense the fluid.

14. The apparatus of claim 9, comprising:

a. an energy delivery button to wind a spring;

b. a release button to allow energy to be released from the spring; and

c. a metering assembly coupled to the reservoir, wherein the metering assembly comprises;

i. an input valve;

ii. a metering chamber coupled to the input valve; and

iii. an output valve coupled to the metering chamber,

wherein the spring provides energy to actuate each valve in a predetermined sequence to dispense the fluid.

15. The apparatus of claim 14, wherein the spring provides energy to activate the metering chamber.

16. The apparatus of claim 14, comprising a metering spring to provide energy to activate the metering chamber.

17. The apparatus of claim 1, comprising a dispensing feedback unit to indicate fluid dispensing.

18. The apparatus of claim 1, wherein the cannula assembly comprises one of:

a cannula, a micro-needle, a needle.

19. The apparatus of claim 1, comprising a receiving port to receive a second medication.

20. An apparatus to store and dispense a fluid on-demand, comprising:

a reservoir;

a metering assembly coupled to and powered by the reservoir;

an energy storage device coupled to the reservoir to store energy, wherein the energy is mechanically generated by a user'"'"'s action;

a cannula assembly adapted to be positioned on a patient and coupled to the reservoir prior to use; and

a sequencer coupled to the reservoir, the metering assembly, and the energy storage device to control fluid dispensing upon command.