Medical device and method of using the same

A medical device, comprising:

• a base body, comprising:
• a release injectable button;
• a spring-loaded plunger mechanism;
• a detachable needle cartridge coupled to the base body and comprising:
• one or more liquid chambers integrated inside the detachable needle cartridge and configured to hold liquid;
• a filling channel disposed on an outer surface of the detachable needle cartridge and facilitates filing of liquid in the one or more liquid chambers;
• a plurality of needles coupled to the one or more liquid chambers;
• and
• a wand coupled to the base body and comprising:
• a detach insert button;
• wherein the base body is adapted to activate the spring-loaded plunger mechanism by manually pushing the release injectable button and releases the liquid into the plurality of needles of the detachable needle cartridge to be injected into a subject;
• and
• wherein the wand adapted to attach and detach from the base body by way of a locking mechanism activated by manually pushing the detach insert button.

A detachable needle cartridge medical device, comprising:

• a base body;
• a detachable needle cartridge comprising:
• one or more liquid chambers integrated inside the detachable needle cartridge and configured to hold liquid;
• a filling channel disposed on an outer surface of the detachable needle cartridge and facilitates filling of liquid in the one or more liquid chambers, wherein the filling channel of the detachable needle cartridge further comprises a tamper-evident seal, and a closure cap disposed on the tamper-evident seal;
• a plurality of needles or multiple spring-loaded autoinjectors coupled to the one or more liquid chambers;
• a one-way valve integrated with the plurality of needles or the multiple spring-loaded autoinjectors;
• and
• a connection means;
• a wand coupled to the base body and comprising a detach insert button;
• wherein the detachable needle cartridge is coupled to the base body by way of the connection means and is adapted to deliver the liquid through the plurality of needles or the multiple spring-loaded autoinjectors injected into a subject;
• and
• wherein the wand is adapted to attach to and detach from the base body by way of a locking mechanism activated by manually pushing the detach insert button, the locking mechanism comprising at least one of locking teeth configured to engage one or more corresponding grooves or notches on the base body, a latch bolt, a locking pin, or a bayonet fitting.