Drop liquid/blood transfusion apparatus and safety valve thereof
A safety valve and infusion tube technology, applied in the field of medical devices, can solve the problems of small diameter of the safety valve, inability to achieve the sealing effect of the infusion tube, easy to place at the bottom of the drip bucket, etc., and achieves high sealing accuracy and stable up and down. Good sliding and safety performance
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Embodiment 1
[0027] Such as figure 1 Shown is the explosion diagram of the safety valve, and the safety valve 14 is placed in the dropping funnel 10 near the lower infusion hole ( figure 1 The dropping funnel is omitted in the middle, and the Figure 4 As shown in a, it can be seen that the safety valve 14 is placed in the dropping funnel 10), which includes a hard rubber fitting 1 formed with a sliding post and a soft rubber base 6, and the safety valve also includes a fixing bracket 4, the When the fixing bracket 4 cooperates with the dropping funnel 10, a leakage channel 5 is formed, and a through hole 3 is formed in the center of the fixing bracket 4, and the sliding post 2 of the hard rubber fitting passes through the through hole 3 and the The soft rubber base 6 is mated and connected, the sliding column 2 of the hard rubber fitting 1 is slidingly fitted with the through hole 3 , and the maximum dimension of the soft rubber base 6 is larger than the maximum dimension of the through ...
Embodiment 2
[0031] Such as image 3 shown as will figure 2 Replace the connecting part of the medium hard rubber fitting with the main body of the hard rubber fitting with a bucket-shaped safety valve, and replace the octagonal cylinder in Example 1 with a pentagonal cylinder, as shown in Figure 6 The fixed bracket shown is a top view when the pentagonal cylinder cooperates with the dropping funnel, and the composition and cooperation of the safety valve are the same as those in Embodiment 1.
[0032] Such as Figure 4b shows a schematic diagram of a drip infusion blood transfusion set with the filter tube on the upper dripping funnel, including the insertion needle 7, the upper infusion tube 9, the filter tube 8, the connecting tube 15, the dripping funnel 10, the lower infusion tube 11, the adjustment switch 12, the injection Needle 13 and above-mentioned safety valve 14, wherein insertion needle 7, upper infusion tube 9, filter tube 8, connecting tube 15, drip funnel 10, lower infu...
Embodiment 3
[0034] Replace the pentagonal cylinder in Example 2 with a cylinder with a leakage hole, because the cylinder cannot produce a gap when it cooperates with the dropping funnel, and the leakage channel is the leakage hole 51 at this time, as Figure 7 The fixed bracket 4 shown is a top view when the cylinder cooperates with the dropping funnel 10 , the positions of the filter tube 8 and the dropping funnel 10 are exchanged, and the composition and matching of the safety valve are the same as in the first embodiment.
[0035] Such as Figure 4 Shown in c is a schematic diagram of a drip infusion blood transfusion set with the filter tube on the lower dripping funnel, that is, the insertion needle 7, the upper transfusion tube 9, the dripping funnel 10, the connecting tube 15, the filter tube 8, the lower transfusion tube 11, the adjustment switch 12, the injection The needles 13 are connected successively, and the safety valve 14 is placed in the dropping funnel 10 .
[0036] Th...
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