PUMP ASSEMBLY WITH SWITCH

• US 20090299289A1
• Filed: 12/31/2008
• Published: 12/03/2009
• Est. Priority Date: 12/31/2007
• Status: Active Grant

• Current Assignee: Deka Products Limited Partnership
• Original Assignee: Deka Products Limited Partnership
• Inventors: Kamen, Dean, Guay, Gerald Michael, Gray, Larry Brian
• Granted Patent: US 8,414,563 B2
• Time in Patent Office: Days
• US Class Current: 604/151
• CPC Class Codes: A61M 2005/14268 with a reusable and a disposable component
• CPC Class Codes: A61M 2205/0266 Shape memory materials
• CPC Class Codes: A61M 2205/3375 Acoustical, e.g. ultrasonic, measuring means
• CPC Class Codes: A61M 2205/3569 sublocal, e.g. between console and disposable
• CPC Class Codes: A61M 2205/6018 providing set-up signals for the apparatus configuration
• CPC Class Codes: A61M 2205/8237 Charging means
• CPC Class Codes: A61M 2209/086 Docking stations
• CPC Class Codes: A61M 5/1413 Modular systems comprising interconnecting elements
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/16809 by repeated filling and emptying of an intermediate volume pressure infusion using positive displacement pumps A61M5/142
• CPC Class Codes: A61M 5/16886 for measuring fluid flow rate, i.e. flowmeters
• CPC Class Codes: A61M 5/172 electrical or electronic A61M5/16804, A61M5/16831 take precedence

Abstract

A wearable infusion pump assembly includes a reusable housing assembly, and a disposable housing assembly including a reservoir for receiving an infusible fluid. The wearable infusion pump assembly also includes a releasable engagement assembly configured to allow the reusable housing assembly to releasably engage the disposable housing assembly. A switch assembly of the wearable infusion pump assembly is configured to effectuate a functionality of the infusion pump assembly.

Claims

1. A wearable infusion pump assembly comprising:

a reusable housing assembly;

a disposable housing assembly including a reservoir for receiving an infusible fluid;

a releasable engagement assembly configured to allow the reusable housing assembly to releasably engage the disposable housing assembly; and

a switch assembly configured to effectuate a functionality of the infusion pump assembly.

2. The wearable infusion pump assembly of claim 1 wherein the functionality includes a bolus infusion functionality, the wearable infusion pump assembly further comprising:

at least one processor; and

a computer readable medium coupled to the at least one processor, the computer readable medium including a plurality of instructions stored thereon which, when executed by the at least one processor, cause the at least one processor to perform operations comprising;

receiving an initiation signal from the switch assembly indicative of a bolus infusion event;

receiving a dose signal from the switch assembly indicative of at least a portion of a bolus quantity of the infusible fluid;

rendering an audible quantity signal in response to the dose signal; and

receiving an approval signal from the switch assembly indicative of a concurrence with the audible quantity signal.

3. The wearable infusion pump assembly of claim 2 wherein the computer readable medium further includes instructions for:

administering the bolus quantity of the infusible fluid.

4. The wearable infusion pump assembly of claim 1 wherein the functionality includes a separation detection functionality, the wearable infusion pump assembly further comprising:

at least one processor; and

a computer readable medium coupled to the at least one processor, the computer readable medium including a plurality of instructions stored thereon which, when executed by the at least one processor, cause the at least one processor to perform operations comprising;

transmitting a ping signal to a remote control assembly;

monitoring for receipt of a reply signal from the remote control assembly in response to the ping signal; and

if the reply signal is not received within a defined period of time, rendering an audible separation alarm.

5. The wearable infusion pump assembly of claim 4 wherein the computer readable medium further includes instructions for:

receiving an alarm override signal from the switch assembly indicative of a desire to silence the separation alarm; and

silencing the separation alarm.

6. The wearable infusion pump assembly of claim 1 wherein the functionality includes a pairing functionality, the wearable infusion pump assembly further comprising:

at least one processor; and

a computer readable medium coupled to the at least one processor, the computer readable medium including a plurality of instructions stored thereon which, when executed by the at least one processor, cause the at least one processor to perform operations comprising;

receiving a pairing initiation signal from the switch assembly indicative of a pairing event;

monitoring for receipt of a pairing request from a remote control assembly; and

if the pairing request is received, providing an acknowledgment message to the remote control assembly, wherein the acknowledgement message uniquely identifies the wearable infusion pump assembly.

7. The wearable infusion pump assembly of claim 6 wherein the acknowledgement message includes a serial number of the wearable infusion pump assembly.

8. The wearable infusion pump assembly of claim 1 further comprising:

an external infusion set configured to deliver the infusible fluid to a user.

9. The wearable infusion pump assembly of claim 1 wherein the reusable housing assembly includes:

a mechanical control assembly including a pump assembly and at least one valve assembly.

10. The wearable infusion pump assembly of claim 9 wherein the mechanical control assembly includes at least one shape-memory actuator.

11. A wearable infusion pump assembly comprising:

a reusable housing assembly including a mechanical control assembly, the mechanical control assembly including a pump assembly, at least one shape-memory actuator configured to actuate the pump assembly, and at least one valve assembly;

a disposable housing assembly including a reservoir for receiving an infusible fluid;

a releasable engagement assembly configured to allow the reusable housing assembly to releasably engage the disposable housing assembly; and

a switch assembly configured to effectuate a pairing functionality of the infusion pump assembly.

12. The wearable infusion pump assembly of claim 11 further comprising:

at least one processor; and

a computer readable medium coupled to the at least one processor, the computer readable medium including a plurality of instructions stored thereon which, when executed by the at least one processor, cause the at least one processor to perform operations comprising;

receiving a pairing initiation signal from a switch assembly included within a wearable infusion pump assembly, the pairing initiation signal indicative of a pairing event;

monitoring for receipt of a pairing request from a remote control assembly; and

if the pairing request is received, providing an acknowledgment message to the remote control assembly, wherein the acknowledgement message uniquely identifies the wearable infusion pump assembly.

13. The wearable infusion pump assembly of claim 12 wherein the acknowledgement message includes a serial number of the wearable infusion pump assembly.

14. The wearable infusion pump assembly of claim 11 further comprising:

an external infusion set configured to deliver the infusible fluid to a user.

16. The computer program product of claim 14 wherein the computer readable medium further includes instructions for:

administering the bolus quantity of the infusible fluid via the wearable infusion pump assembly.

15. A computer program product residing on a computer readable medium including a plurality of instructions stored thereon, which, when executed by a processor, cause the processor to perform operations comprising:

receiving an initiation signal from a switch assembly included within a wearable infusion pump assembly, the initiation signal indicative of a bolus infusion event;

receiving a dose signal from the switch assembly indicative of at least a portion of a bolus quantity of an infusible fluid;

rendering an audible quantity signal on the wearable infusion pump assembly in response to the dose signal; and

receiving an approval signal from the switch assembly indicative of a concurrence with the audible quantity signal.

17. A computer program product residing on a computer readable medium including a plurality of instructions stored thereon, which, when executed by a processor, cause the processor to perform operations comprising:

transmitting a ping signal from a wearable infusion pump assembly to a remote control assembly;

monitoring for receipt of a reply signal from the remote control assembly in response to the ping signal; and

if the reply signal is not received within a defined period of time, rendering an audible separation alarm on the wearable infusion pump assembly.

18. The computer program product of claim 17 wherein the computer readable medium further includes instructions for:

receiving an alarm override signal from a switch assembly included within the wearable infusion pump assembly indicative of a desire to silence the separation alarm; and

silencing the separation alarm.

19. A computer program product residing on a computer readable medium including a plurality of instructions stored thereon, which, when executed by a processor, cause the processor to perform operations comprising:

receiving a pairing initiation signal from a switch assembly included within a wearable infusion pump assembly indicative of a pairing event;

monitoring for receipt of a pairing request on the wearable infusion pump assembly from a remote control assembly; and

if the pairing request is received, providing an acknowledgment message to the remote control assembly, wherein the acknowledgement message uniquely identifies the wearable infusion pump assembly.

20. The computer program product of claim 20 wherein the acknowledgement message includes a serial number of the wearable infusion pump assembly.