Infusion adjusting device capable of controlling liquid medicine drop weights

Abstract

The invention discloses an infusion adjusting device capable of controlling liquid medicine drop weights. The infusion adjusting device comprises a puncture component, an elastic cushion seat, an elastic cushion and a drop funnel, wherein the elastic cushion seat is arranged at the upper end of the drop funnel, a cavity is formed in the top of the elastic cushion seat, a plurality of droppers are arranged at the bottom of the elastic cushion seat, and a plurality of liquid inlet holes which are communicated with the plurality of droppers in a one-to-one correspondence mode are formed in the bottom wall of the cavity of the elastic cushion seat. The elastic cushion is arranged in the cavity of the elastic cushion seat and provided with a liquid flow path, the liquid flow path comprises a first opening formed in the top surface of the elastic cushion and a second opening formed in the bottom surface, a protruding main seal ring is disposed on the bottom surface of the elastic cushion and surrounds the second opening, and a protruding auxiliary seal portion is disposed on the bottom surface of the elastic cushion, which is on at least one side of the main seal ring. The main seal ring and the auxiliary seal portion form a seal area capable of preventing liquid from the second opening from flowing into other liquid inlet holes but flowing into the droppers communicated with the liquid inlet holes when the elastic cushion is rotated to a semi-opening position of any liquid inlet hole, and the phenomenon of disordered flow is avoided.

Description

technical field [0001] The invention relates to a medical transfusion regulating device. Background technique [0002] In the process of clinical intravenous infusion, many drugs need to accurately control and adjust the infusion accuracy, and the original infusion accuracy can be changed at any time during the infusion process according to the disease and the needs of the drug. [0003] An existing infusion regulating device that can control the weight of medicinal liquid drops is as follows: figure 1 As shown, it includes a piercing part 91, an elastic cushion seat 92, an elastic pad 93 and a dripping funnel 94. The puncture part 91 includes a base 911 and a puncture needle 912 , and the puncture needle 912 is arranged on the base 911 . The base 911 includes a top plate 913 and an annular skirt 914 extending downward from the bottom surface of the top plate. The lower end of the dropping funnel 94 is provided with a liquid medicine outlet 95 . The elastic cushion 92 is...

AI Technical Summary

Problems solved by technology

[0007] The shortcoming of existing infusion regulation device is, when elastic pad 93 rotates to the semi-open position of certain liquid inlet hole (here with liquid inlet hole 926 illustration) with puncture part 91, as Figure 8 As shown, a part of the liquid inlet hole 926 is located in the area 9371 surrounded by the periphery of the sealing ring 937, while the other part is located outside the area 9371. At this time, the liquid medicine flowing out from the second opening 933 cannot be well received Sealed, in addition to flowing into the liquid inlet 926, it will also flow into the liquid inlet 925 and 927, resulting in turbulent flow, and the liquid medicine will flow into the dropping funnel 94 from the three droppers at the same time, so that the liquid medicine drops cannot be controlled. Drop shape and drop weight

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