An automatic needle sticking aid for injection needles
A technology of injection needles and needle aids, which is applied in the direction of syringes, hypodermic injection devices, needles, etc., can solve the problems of needles not getting in, the patient's condition worsening, and low efficiency of needle injection, so as to achieve less psychological burden, reduce the pain of needle injection, and improve needle injection. Depth more controllable effect
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Embodiment 1
[0044] like Figure 1-14 As shown, an automatic needle sticking aid for injection needles includes a rotary switch 1 , a casing 2 that is clamped with the rotary switch 1 , and a needle handle clamping device 3 arranged in the casing 2 . Both the rotary switch 1 and the housing 2 are hollow cylindrical structures. A fixed table is arranged in the rotary switch 1 ; the outer diameter of the limit cover 6 is larger than the inner diameter of the fixed table and smaller than the inner diameter of the rotary switch 1 .
[0045] like Figure 15 As shown, the injection needle 9 includes a needle handle 91 , an L-shaped needle head 92 mounted in the needle handle 91 and an infusion tube 93 in communication with the needle handle 91 .
[0046] On the outer side of the rotary switch 1 are provided a circumferential clamping groove 11 and two symmetrically arranged clamping ports 12 communicating with the clamping grooves 11 , and two mounting holes 16 with downward openings are symme...
Embodiment 2
[0058] like Figure 13 As shown, the difference between this embodiment and Embodiment 1 is that the outer walls of the left clip portion 81 and the right clip portion 82 are respectively provided with escape grooves 85, and the escape grooves 85 and the guide The holes 72 are arranged in parallel. Other structures are consistent with Example 1.
[0059] The avoidance groove 85 plays the role of limiting the left and right clips 82. When the guide block 28 enters the avoidance groove 85, under the action of the clip return spring 87, the left and right clips 82 are separated by a certain distance to facilitate the insertion and removal of the needle handle. Released, the clip return spring 87 is in the original length or compressed state; when the guide block 28 leaves the escape groove 85, the two guide blocks 28 clamp the left and right clamping parts 82, so that the left and right clamping parts 82 clamp the needle handle . By arranging the avoidance groove 85, the needl...
Embodiment 3
[0061] like Figure 11 As shown, compared with Embodiment 2, the difference between this embodiment is that an arc-shaped limiting top plate 61 is provided on the inner top plate of the limiting cover 6, and the limiting top plate 61 is located at the edge of the clamping part of the needle handle. Directly above. Other structures are consistent with Example 2.
[0062] The top of the needle handle clamping part is limited to further increase the stability of the needle.
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