Auto-injector systems and method for delivering cyst medication on demand

Abstract

An auto-injector device including a syringe, a needle arranged in the vicinity of a first end of the syringe, and a plunger arranged within the syringe. A volume within the syringe between the plunger the needle accommodates medicine, such that movement of the plunger toward the needle dispenses medicine through the needle. A selection assembly configurable by a user to adjust an amount of medicine dispensed by the auto-injector device and depth to which the medicine is delivered. Also, a method for treating a skin lesion or skin disorder utilizing the auto-injector and a kit for patient administered treatment.

1 - 30 . (canceled) 
     
     
         31 . A device for self-administering of a medicine by a user, the device comprising:
 a housing comprising a forward housing element and a rear housing element;   a medicine vial located in the forward housing element;   a needle;   a depth selector at a first end of the forward housing element;   a dosage adjuster at an end of the rear housing element; and   an actuator configured to allow self-administration of the medicine by the user,   wherein the depth selector is configured to change an extent to which the needle extends from the device, and   wherein the dosage adjuster is configured to change a dose of medicine to be administered.   
     
     
         32 . The device of  claim 31 , wherein the forward housing element is configured to contain the medicine to be self-administered by the user and the rear housing element is configured to allow actuation of the device by the user. 
     
     
         33 . The device of  claim 31 , wherein the needle is replaceable. 
     
     
         34 . The device of  claim 31 , further comprising one or more detents and complementary protrusions on the depth selector and/or the forward housing element configured to indicate when a certain depth has been selected and/or maintain the depth selector and the needle in a selected position. 
     
     
         35 . The device of  claim 31 , wherein the needle is part of a needle assembly having a needle base in which the needle is anchored. 
     
     
         36 . The device of  claim 31 , further comprising a needle guide, the needle guide configured to guide the needle as the needle penetrates the skin. 
     
     
         37 . The device of  claim 31 , wherein a distance between the depth selector and the housing decreases as the depth selector is screwed and the distance increases as the depth selector is unscrewed. 
     
     
         38 . The device of  claim 31 , wherein the depth selector and the dosage adjuster include indicators. 
     
     
         39 . The device of  claim 31 , further comprising a drive sleeve connected to the dosage adjuster. 
     
     
         40 . The device of  claim 31 , further comprising a ratchet mechanism that only permits rotation in one direction with respect to a reset ring, wherein each click of the ratchet mechanism corresponds to an increase in the dose of medicine. 
     
     
         41 . The device of  claim 31 , further comprising a spring, the spring maintaining a forward force on the needle and the medicine vial,
 wherein torque is applied to the spring during rotating of the dosage adjuster, and   wherein, pressing the actuator releases the spring thereby delivering the dose of medicine into the skin of the user.   
     
     
         42 . The device of  claim 31 , further comprising a plunger located in the medicine vial. 
     
     
         43 . The device of  claim 31 , wherein the depth selector is configured to rotate to change an extent to which the needle extends from the device. 
     
     
         44 . The device of  claim 31 , wherein the dosage adjuster is configured to rotate to change a dose of medicine to be administered. 
     
     
         45 . The device of  claim 31 , wherein the depth selector is configured to adjust the depth of the needle and the dosage adjuster is configured to adjust the dose of the medicine based on a measured diameter and a measured height of a skin lesion or skin disorder. 
     
     
         46 . The device of  claim 31 , wherein the depth selector and the dosage adjuster form a selection assembly, the selection assembly directly corresponding to measurements on a measurement guide.