Medical needle device
The present invention relates to a medical needle device, and more specifically, to a medical needle device capable of drilling a fine passage in an affected part of a patient, or collecting a portion of tissue in the body of the patient. Through the present invention, a needle and a handle of the medical needle device may be separated, and thus the device may be conveniently used while not obstructing the view of the affected part when using same. Further, through the present invention, the handle and the needle are unshakably fastened, and thus may be stably used.
1 . A medical needle device, comprising:
a handle part having a handle and a locking knob rotatably fixed to the handle; and
a needle assembly having at least a part inserted into an insertion hole of the locking knob,
wherein a cross-sectional shape of the insertion hole and a cross-sectional shape of a lowermost end of the inserted part of the needle assembly cross each other by the rotation of the locking knob, so that the inserted part of the needle assembly is fixed in the insertion hole.
2 . The medical needle device of claim 1 ,
wherein the needle assembly comprises:
an exterior which is hollow;
an exterior fixing part fixed to one end of the exterior;
a needle inserted into the exterior; and
a needle fixing part fixed to one end of the needle and detachable to the exterior fixing part, and
wherein at least a portion of the exterior fixing part is inserted into the locking knob through the insertion hole in a state having the needle fixing part mounted.
3 . The medical needle device of claim 2 , wherein a fastening screw is formed at an opposite end of the exterior of the exterior fixing part.
4 . The medical needle device of claim 2 , wherein an exposed holding part exposed to an outside of the insertion hole is formed at a lower end of the exterior fixing part.
5 . The medical needle device of claim 1 , wherein a striking seat capable of striking is formed at an upper end of the handle.
6 . The medical needle device of claim 5 , wherein a marking part capable of confirming a direction of the needle assembly is formed at the striking seat.
7 . The medical needle device of claim 1 , wherein a handle receiving part in communication with an inside of the locking knob having a part of the exterior fixing part seated in a state having the needle fixing part mounted is formed inside the handle.
8 . The medical needle device of claim 1 , wherein a limited seat part is formed in a first coupling part coupled to the locking knob of the handle, the limited seat part being configured to be connected to a movement limiting part formed on the locking knob so as to limit an angular range of relative movement of the handle and the locking knob.
9 . The medical needle device of claim 8 , wherein the movement limiting part is one or more locking protrusions protruding from the locking knob, and the limited seat part is a movement limiting groove concavely formed at a predetermined angle.
10 . The medical needle device of claim 2 , wherein a biasing part is formed at the locking knob, so as to bias the exterior fixing part upward.
11 . The medical needle device of claim 10 , wherein the biasing part is a tapered part formed around the insertion hole of the locking knob, and when the locking knob is rotated, a lower surface of the exterior fixing part is pushed upward.
12 . The medical needle device of claim 2 , wherein a first fixation maintaining part is formed at a lower surface of the exterior fixing part, and a second fixation maintaining part corresponding to the first fixation maintaining part is formed on the locking knob, and when the locking knob is rotated, the first fixation maintaining part and the second fixation maintaining part are coupled to each other so that the needle assembly maintains a fixation state with respect to the handle.
13 . The medical needle device of claim 10 , wherein a first fixation maintaining part is formed at a lower surface of the exterior fixing part, and a second fixation maintaining part corresponding to the first fixation maintaining part is formed on the locking knob, and when the locking knob is rotated, the first fixation maintaining part and the second fixation maintaining part are coupled to each other so that the needle assembly maintains a fixation state with respect to the handle.