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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 re

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.

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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

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; anda switch assembly configured to effectuate a functionality of the infusion pump assembly;wherein the functionality includes a separation detection functionality, the wearable infusion pump assembly further comprising:at least one processor; anda 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; andif the reply signal is not received within a defined period of time, rendering an audible separation alarm. 2. The wearable infusion pump assembly of claim 1 wherein the functionality includes a bolus infusion functionality, 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; andreceiving 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 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; andsilencing the separation alarm. 5. The wearable infusion pump assembly of claim 1 wherein the functionality includes a pairing functionality, 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 a remote control assembly; andif 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. 6. The wearable infusion pump assembly of claim 5 wherein the 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; anda switch assembly configured to effectuate a pairing functionality of the infusion pump assembly;wherein the switch assembly is further configured to effectuate a separation detection functionality, the wearable infusion pump assembly further comprising:at least one processor; anda 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; andif the reply signal is not received within a defined period of time, rendering an audible separation alarm. 11. The wearable infusion pump assembly of claim 10wherein 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 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; andif 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. 12. The wearable infusion pump assembly of claim 11 wherein the acknowledgement message includes a serial number of the wearable infusion pump assembly. 13. The wearable infusion pump assembly of claim 10 further comprising: an external infusion set configured to deliver the infusible fluid to a user.