# US 11,077,245 B2 · Pump assembly with switch > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,077,245 B2 - Document ID: US11077245B2 - Status: Granted - Kind: B2 - Application number: 15/894,304 - Filed: 2018-02-12 - Published: 2019-02-14 - Granted: 2021-08-03 - Earliest claimed: 2007-12-31 - Assignees: DEKA Products Limited Partnership - Applicants: DEKA Products Limited Partnership - Inventors: Dean Kamen; Larry Brian Gray; Gerald Michael Guay - Web page: https://patentgrep.com/patent/US11077245B2 ## CPC - A61M 5/14248: {of the skin patch type} - A61M 5/1413: {Modular systems comprising interconnecting elements} - A61M 5/14244: {adapted to be carried by the patient, e.g. portable on the body} - A61M 5/16809: {by repeated filling and emptying of an intermediate volume} - A61M 5/16886: {for measuring fluid flow rate, i.e. flowmeters} - A61M 5/172: electrical or electronic - A61M 2005/14268: {with a reusable and a disposable component} - A61M 2205/0266: Shape memory materials - A61M 2205/3375: Acoustical, e.g. ultrasonic, measuring means - A61M 2205/3569: sublocal, e.g. between console and disposable - A61M 2205/6018: providing set-up signals for the apparatus configuration - A61M 2205/8237: Charging means - A61M 2209/086: Docking stations - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## 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 ### Claim 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; a switch assembly configured to effectuate at least one functionality of the infusion pump assembly, the at least one functionality including a separation detection functionality; at least one processor disposed within the reusable housing assembly, the at least one processor configured to control the separation detection functionality for detecting separation of the wearable infusion pump assembly from a remote control assembly; 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 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. ### Claim 2 (depends on 1) The wearable infusion pump assembly of claim 1 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. ### Claim 3 (depends on 1) The wearable infusion pump assembly of claim 1 wherein the at least one functionality further includes a bolus infusion functionality; and wherein the computer readable medium further includes 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. ### Claim 4 (depends on 3) The wearable infusion pump assembly of claim 3 wherein the computer readable medium further includes instructions for: administering the bolus quantity of the infusible fluid. ### Claim 5 (depends on 1) The wearable infusion pump assembly of claim 1 wherein the at least one functionality further includes a pairing functionality; and wherein the computer readable medium further includes 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 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. ### Claim 6 (depends on 5) The wearable infusion pump assembly of claim 5 wherein the acknowledgement message includes a serial number of the wearable infusion pump assembly. ### Claim 7 (depends on 1) The wearable infusion pump assembly of claim 1 further comprising: an external infusion set configured to deliver the infusible fluid to a user. ### Claim 8 (depends on 1) 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. ### Claim 9 (depends on 8) The wearable infusion pump assembly of claim 8 wherein the mechanical control assembly includes at least one shape-memory actuator.