Pump assembly with switch

• US 9,931,461 B2
• Filed: 04/08/2013
• Issued: 04/03/2018
• Est. Priority Date: 12/31/2007
• Status: Active Grant

• Current Assignee: Deka Products Limited Partnership
• Original Assignee: Deka Products Limited Partnership
• Inventors: Kamen, Dean, Gray, Larry Brian, Guay, Gerald Michael
• Primary Examiner(s): Bosworth, Kami A
• Application Number:
  US13/858,569
• Publication Number:
  US 20130281974A1
• Time in Patent Office: 1,821 Days
• 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;

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;

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

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

if the pairing confirm request is received, providing a pairing confirm acknowledgment message to the remote control assembly.

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

wherein the computer readable medium further includes a second 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, and

wherein the computer readable medium further includes a second 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 the 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 pairing request acknowledgement message includes a serial number of the wearable infusion pump assembly.

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

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

8. 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.

9. The wearable infusion pump assembly of claim 8 wherein the mechanical control assembly includes at least one shape-memory actuator.

10. 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;

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

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 included within the 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;

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

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

if the pairing confirm request is received, providing a pairing confirm acknowledgment message to the remote control assembly.

11. The wearable infusion pump assembly of claim 10 wherein the pairing request acknowledgement message includes a serial number of the wearable infusion pump assembly.

12. The wearable infusion pump assembly of claim 10 further comprising:

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

13. The wearable infusion pump assembly of claim 10, wherein the computer readable medium further includes instructions for:

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

14. 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;

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

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

if the pairing confirm request is received, providing a pairing confirm acknowledgment message to the remote control assembly.

15. The computer program product of claim 14 wherein the pairing request acknowledgement message includes a serial number of the wearable infusion pump assembly.