Smart Self-Activating Wearable Device for Automatically Injecting Medicines

Abstract

A compact and smart wearable device is configured to automatically inject medicines into the wearer. Because hypodermic needles are only deployed when triggered, infection risks are eliminated. Necessary medicines are automatically deployed based on physiological or other data without human intervention to save lives.

What is claimed is: 
     
         1 . A wearable device for automatically injecting a fluid into a wearer of the wearable device, the wearable device comprising, in combination:
 an enclosure including a base portion, and top portion closing a top of the base portion;   an attachment for securing the enclosure to the wearer;   at least one fluid cylinder within the base portion of the enclosure and having an open top closed by the top portion of the enclosure;   at least one injection cylinder within the base portion of the enclosure and having an open top closed by the top portion of the enclosure;   a fluid piston within the fluid cylinder configured for longitudinal movement within the fluid cylinder;   an injection piston within the injection cylinder configured for longitudinal movement within the injection cylinder;   a passage connecting the fluid cylinder above the fluid piston with the injection cylinder above the injection piston;   at least one hypodermic needle carried by the injection piston for insertion into the wearer;   wherein the injection piston divides the injection cylinder into a first portion containing the fluid to be injected and a second portion containing an insertion end of the at least one hypodermic needle; and   wherein the fluid piston divides the fluid cylinder into a first portion containing the fluid to be injected and a second portion.   
     
     
         2 . The wearable device according to  claim 1 , wherein the top portion includes an electronics compartment covering the top of the base portion and a cover covering a top of the electronics compartment. 
     
     
         3 . The wearable device according to  claim 1 , wherein the fluid cylinder is parallel with the injection cylinder. 
     
     
         4 . The wearable device according to  claim 1 , wherein the passage is a channel having an open top formed in the top of the base portion of the enclosure and the open top of the channel is closed by the top portion of the enclosure. 
     
     
         5 . The wearable device according to  claim 1 , further comprising a valve member located within the first portion of the injection cylinder containing the fluid to be injected and blocking flow of the fluid to be injected to the at least one hypodermic needle. 
     
     
         6 . The wearable device according to  claim 5 , comprising a plurality of hypodermic needles carried by the injection piston for insertion into the wearer and wherein the valve member is a flexible membrane seal. 
     
     
         7 . The wearable device according to  claim 1 , wherein the attachment includes a layer of adhesive on an outer surface of the enclosure. 
     
     
         8 . The wearable device according to  claim 1 , further comprising at least one position sensor for determining the position of the injection piston within the injection cylinder. 
     
     
         9 . The wearable device according to  claim 1 , comprising a plurality of hypodermic needles carried by the injection piston for insertion into the wearer.