Needle-based device based on direct wing-based coupling of a needle shield to a barrel thereof and safety mechanism implemented therein

A needle-based device comprising:

• a barrel as a body of the needle-based device, the barrel comprising a needle port proximate an end thereof integrally formed with the barrel, the needle port being within an inner cross-sectional width of the barrel and concentric with an outer wall of the barrel, and the needle port extending from the end of the barrel thereinto within the inner cross-sectional width of the barrel such that the needle port is entirely encompassed within the inner cross-sectional width of the barrel and an outer boundary of the needle port along a length of the barrel is at most flush with an outer cross-sectional boundary of the barrel at the end of the barrel;
• a needle, a portion of which is received within an inner cross-sectional width of the needle port and glued thereinto to cause the needle to protrude from the barrel;
• a needle shield to protect an entire length of the needle protruding from the barrel based on completely encompassing the entire protruding length of the needle in a first state of disuse of the needle-based device;
• and
• a lock button with a first end, the first end is either integrally formed with the needle shield or external to the needle shield and then coupled to the needle shield, and a length of the lock button is completely external to the needle shield,
• wherein the needle shield is locked with the lock button in the first state of disuse of the needle-based device based on:
• the lock button comprising a hook at a second end thereof that passes through a groove formed on the needle shield such that, during the locking of the needle shield:
• the length of the lock button completely external to the needle shield is parallel to a length of the needle shield and the entire protruding length of the needle, and
• the hook is perpendicular to the length of the needle shield, the length of the lock button and the entire protruding length of the needle, and
• wherein the barrel comprises wings on lateral sides of the outer wall thereof, the wings extending perpendicular to the length of the barrel to couple the needle shield to the barrel in the first state of disuse of the needle-based device.

A needle-based device comprising:

• a barrel as a body of the needle-based device;
• a needle, a portion of which is received within the barrel and glued thereinto to cause the needle to protrude from the barrel;
• a needle shield to protect an entire length of the needle protruding from the barrel based on completely encompassing the entire protruding length of the needle in a first state of disuse of the needle-based device;
• and
• a lock button with a first end, the first end is either integrally formed with the needle shield or external to the needle shield and then coupled to the needle shield, and a length of the lock button is completely external to the needle shield,
• wherein the needle shield is locked with the lock button in the first state of disuse of the needle-based device based on:
• the lock button comprising a hook at a second end thereof that passes through a groove formed on the needle shield such that, during the locking of the needle shield:
• the length of the lock button completely external to the needle shield is parallel to a length of the needle shield and the entire protruding length of the needle, and
• the hook is perpendicular to the length of the needle shield, the length of the lock button and the entire protruding length of the needle,
• wherein the barrel comprises wings on lateral sides of an outer wall thereof, the wings extending perpendicular to a length of the barrel to couple the needle shield to the barrel in the first state of disuse of the needle-based device, and
• wherein the needle shield is retracted in a first direction toward the barrel to apply a first force in the first direction to cause the needle to emerge out of the needle shield to prepare the needle-based device for a second state of use thereof.