Needle unit and dermatological liquid injection apparatus using the same

摘要

The present invention relates to a needle unit for injecting liquids such as medicine or tattooing pigment spread to a skin, into the skin, and a dermatological liquid injection apparatus using the same. The present invention includes a body unit including a driving device, a cam member rotated by the driving device, and a connecting member reciprocally driven by the cam member; a needle unit detachably mounted to a front end of the body unit; and a rubber member installed to the needle unit, for blocking blood and liquid mixture which are discharged from a skin of a patient and flow into the needle unit, from flowing to the body unit during a medical procedure.

主权项

1. A liquid injection apparatus comprising:
a body unit comprising a driving device, a cam member rotated by the driving device, and a connecting member reciprocally driven by the cam member; a needle unit detachably mounted to a front end of the body unit; and a rubber member installed to the needle unit, for blocking blood and liquid mixture which are discharged from a skin of a patient and flow into the needle unit, from flowing to the body unit during a medical procedure, wherein the needle unit comprises:
a needle support comprising a plurality of needles and a plurality of liquid discharge holes for ejecting liquid;a liquid reservoir coupled with the needle support in one opening and containing liquid;a movable rod connected to the liquid reservoir with one side and detachably connected to the connecting member with the other end; anda cap unit for surrounding the needle support and the liquid reservoir and comprising a support unit which the movable rod penetrates,wherein the liquid reservoir forms a first liquid injection hole of a long hole shape in one side, and the cap unit forms a second liquid injection hole in one circumference surface.