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A wearable liquid medicament delivery assembly comprises a band arranged to at least partially encircle and be secured to a body extremity of a wearer and a liquid medicament delivery device carried by the band. The device includes a reservoir arranged to hold the liquid medicament, a piercing membe

A wearable liquid medicament delivery assembly comprises a band arranged to at least partially encircle and be secured to a body extremity of a wearer and a liquid medicament delivery device carried by the band. The device includes a reservoir arranged to hold the liquid medicament, a piercing member arranged to penetrate the skin of the wearer to deliver the liquid medicament, and a pump that pumps the liquid medicament from the reservoir to the piercing member to thereby cause the liquid medicament to be delivered to the wearer.

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1. A wearable liquid medicament delivery assembly comprising: a band arranged to at least partially encircle and be secured to a body extremity of a wearer; anda liquid medicament delivery device carried by the band, the device including a reservoir arranged to hold the liquid medicament, a piercing

1. A wearable liquid medicament delivery assembly comprising: a band arranged to at least partially encircle and be secured to a body extremity of a wearer; anda liquid medicament delivery device carried by the band, the device including a reservoir arranged to hold the liquid medicament, a piercing member arranged to penetrate the skin of the wearer to deliver the liquid medicament, and a pump that pumps the liquid medicament from the reservoir to the piercing member to thereby cause the liquid medicament to be delivered to the wearer,wherein the device further includes a dosage selector that adjusts the device to deliver a selectable volume of liquid medicament. 2. The assembly of claim 1, wherein the device includes a needle assembly including the piercing member, and wherein the piercing member comprises a needle. 3. The assembly of claim 2, wherein the device includes a mounting for the needle assembly and wherein the mounting is arranged to deploy the needle prior to each liquid medicament delivery and to retract the needle after each liquid medicament delivery. 4. The assembly of claim 3, wherein the needle assembly includes a source of antiseptic that maintains the needle in an antiseptic condition. 5. The assembly of claim 3, wherein the needle assembly includes a collapsible boot that houses the needle. 6. The assembly of claim 5, wherein the needle assembly includes a source of antiseptic within the collapsible boot that maintains the needle in an antiseptic condition. 7. The assembly of claim 6, wherein the source of antiseptic within the collapsible boot comprises a filler with the antiseptic embedded therein. 8. The assembly of claim 1, wherein the device is attachable to and detachable from the band. 9. The assembly of claim 3, wherein the mounting includes an arm that aligns the needle assembly with the skin of the wearer. 10. The assembly of claim 1, wherein the dosage selector retains an indication of the selected volume after liquid medicament delivery. 11. The assembly of claim 10, wherein the dosage selector includes a latch that retains an indication of the selected volume after liquid medicament delivery. 12. The assembly of claim 1, wherein the device further includes a safety valve that precludes liquid medicament flow to the piercing member until the piercing member has penetrated the skin and has been deployed. 13. The assembly of claim 1, wherein the device further includes a flexible conduit coupling the reservoir with the piercing member. 14. The assembly of claim 1, wherein the pump includes a piston that displaces the liquid medicament from the reservoir. 15. The assembly of claim 1, wherein the device further includes an indicator that indicates a remaining amount of medicament in the reservoir after medicament delivery to the wearer. 16. A wearable liquid medmedicament delivery assembly of comprising: a liquid medicament delivery device including a reservoir arranged to hold the liquid medicament, a needle arranged to penetrate the skin of the wearer to deliver the liquid medicament, and a pump that pumps the liquid medicament from the reservoir to the piercing member to thereby cause the liquid medicament to be delivered to the wearer; anda band arranged to be secured to a body of a wearer and to carry the device,wherein the device further includes a dosage selector that adjusts the device to deliver a selectable volume of liquid medicament. 17. The assembly of claim 16, wherein the device includes a housing secured to the band, wherein the needle is enclosable within the housing, and wherein the needle is releasable from the housing for liquid medicament delivery to the wearer. 18. The assembly of claim 17, wherein the device further includes a cover arranged to cover the housing with the needle enclosed therein and to open to permit release of the needle for liquid medicament delivery to the wearer. 19. The assembly of claim 18, wherein the device further includes a mount having a distal end supporting the needle and a proximal end hingedly connected to the housing to permit the needle to pivot from an enclosed position within the device housing to a ready position for liquid medicament delivery to the wearer. 20. The assembly of claim 19, wherein the needle is arranged to be displaced from the ready position to a delivery position penetrating the skin of the wearer for the delivery of liquid medicament to the wearer. 21. The assembly of claim 20, wherein the device further includes a collapsible boot encircling the needle. 22. The assembly of claim 21, further comprising a source of antiseptic within the collapsible boot that maintains the needle in an antiseptic condition. 23. The assembly of claim 22, wherein the source of antiseptic within the collapsible boot comprises a filler with the antiseptic embedded therein. 24. The assembly of claim 20, wherein the device further includes a flexible conduit coupling the reservoir with the needle. 25. The assembly of claim 24, wherein the device further includes a safety valve that precludes liquid medicament flow to the needle until the needle has penetrated the skin. 26. The assembly of claim 25, wherein the safety valve is arranged to pinch the flexible conduit closed to preclude liquid medicament flow to the needle until the needle has penetrated the skin. 27. The assembly of claim 16, wherein the device further includes a dosage indicator that provides an indication of a total number of liquid medicament dosages delivered. 28. The assembly of claim 16, wherein the pump includes a piston that displaces the liquid medicament from the reservoir.