Improved head pressing disposable blood collection device
A disposable blood collection device technology, which is applied in the field of safety blood collection devices, can solve problems such as bad pressing feeling, increased pressure at the blood collection site, and inconvenience
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Embodiment 1
[0044] Embodiment 1: Twist cap type head push type disposable blood collection device
[0045] see Figure 5-Figure 10 As shown, the disposable blood collection device is composed of a housing 1, a tail cap 2, a needle core 3, a spring 4, a pusher 5 and a twist cap 6 (see Figure 5 and Figure 6 ).
[0046] In assembled state (see Figure 9 ), the tail cover 2 covers the tail port of the housing 1, and the tail cover 2 protrudes from the housing 1 with two elastic claws 7 arranged face to face and symmetrically, and these two elastic claws 7 jointly form an elastic clip. The needle core 3 is clamped in the elastic clip, the spring 4 presses the tail of the needle core 3 and acts on the ejection direction of the needle core 3, and the elastic clip uses the hook 9 at the end and the clamping force to clamp the needle core 3 Clip to form lock before firing. The head of the pusher 5 protrudes from the front end of the shell 1, and the body of the pusher 5 is slidably connecte...
Embodiment 2
[0049] Embodiment 2: Cap type head push type disposable blood collection device
[0050] see Figure 11-Figure 13 As shown, the disposable blood collection device is made up of a shell 1, a tail cap 2, a needle core 3, a spring 4, a pusher 5 and a cap 15 (see Figure 11 and Figure 12 ). Assembly structure see Figure 13 shown.
[0051] The difference between this embodiment and Embodiment 1 lies in that the structure of the protective cap is different. What embodiment 1 draws blood is twist cap type structure, and what this embodiment adopts is cap type structure. The cap type structure means that the head of the blood collection device adopts a cap structure, that is, the cap 15 is set on the head of the blood collection device, and a detection rod protrudes from the cap 15, which can be used to detect the locking state of the needle core and protect the needle tip. Both the twist cap structure and the block cap structure are prior art.
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