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Flow control valve for controlling liquid flow and flow velocity

A liquid flow and flow control valve technology, applied in the field of medical equipment, can solve problems such as adverse consequences and sudden death, and achieve the effects of preventing secondary pollution, comprehensive absorption, and good anesthesia effect

Pending Publication Date: 2020-06-16
NANJING HANXIN PHARMA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Air entering the blood vessels may cause adverse consequences, and severe cases may lead to sudden death

Method used

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  • Flow control valve for controlling liquid flow and flow velocity
  • Flow control valve for controlling liquid flow and flow velocity
  • Flow control valve for controlling liquid flow and flow velocity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] According to the above structure, the flow control valve 1 for controlling the flow and velocity of the liquid is used for the injection of lidocaine hydrochloride in the throat in the anesthesia injection device. Such as Figure 13 As shown, the flow control valve 1 is arranged between the injection device 2 and the drug catheter 3, that is, the first connection part 1.1.1 of the valve sleeve in the flow control valve 1 is connected to the output end of the injection device 2, and the valve in the flow control valve 1 The second connecting part 1.1.2 of the sheath is connected with the input end of the drug conduit 3 . When using the injection device 2 to inject the liquid medicine, the convex side of the medicine catheter 3 faces upwards, and slowly insert it into the patient's throat until the marker 3.1 reaches near the patient's vocal cords, and then stop the penetration. 2 Flow through the flow control valve 1 and flow into the valve core in turn, and then flow t...

Embodiment 2

[0043] According to the above structure, the fluid control valve 1 for controlling the flow rate and velocity of the liquid is used in the infusion device. Such as Figure 14 As shown, the flow control valve 1 is arranged above the infusion needle 4, and when the patient is infused, the liquid medicine flows into the flow control valve 1 from the infusion bottle 5 through the infusion tube 6. The liquid medicine flows into the valve core from the first connecting part 1.1.1 of the valve sleeve in the flow control valve 1, flows through the flap-shaped baffle and flows to the elastic valve ring, and the elastic valve ring deforms elastically under the pressure of the liquid medicine, and the liquid medicine Finally, it flows to the infusion needle and enters the human body. When the liquid medicine is gradually exhausted, the force provided by the gravity of the liquid medicine is not enough to deform the elastic valve ring. At this time, the elastic valve ring returns to its ...

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PUM

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Abstract

The invention belongs to the technical field of medical instruments, and provides a flow control valve for controlling liquid flow and flow velocity; the flow control valve comprises a valve sleeve and a valve element, the valve sleeve comprises a first connecting part and a second connecting part which are both of a hollow structure; the valve element comprises a petal-shaped baffle, a circular baffle, a connecting rod and an elastic valve ring. The middle of the petal-shaped baffle and the middle of the circular baffle are connected with the two ends of the connecting rod respectively, the diameter of the circular baffle is smaller than the inner diameter of the valve sleeve, the periphery of the connecting rod is sleeved with the elastic valve ring, the petal-shaped baffle is connectedwith the inner surface of the valve sleeve through a fan-shaped protruding structure on the periphery of the petal-shaped baffle, and the flow control valve is integrally formed except the elastic valve ring. When the flow control valve is used for throat anesthesia, the flow control valve can control the flow and flow velocity of anesthetic liquid medicine to achieve the atomization effect, so that the liquid medicine is sprayed more uniformly and absorbed more comprehensively, and secondary pollution caused by medicine backflow is avoided; for patients with specific requirements on infusiontime and infusion amount, the invention can effectively solve the problem of timed and quantitative infusion, and can also effectively avoid the phenomenon of blood return caused by complete infusionof liquid medicine.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a flow control valve for controlling liquid flow and flow velocity. Background technique [0002] Throat anesthesia is widely used in throat surgery and endoscopic examination. It is mainly used for mucosal surface anesthesia to ensure that patients with sensitive throat reflexes can cooperate with doctors to complete the examination. In clinical practice, when anesthesiologists perform laryngoscopy, tracheal intubation and throat surgery on patients, they need to anesthetize the patient's throat to relieve their pain. [0003] The traditional throat anesthesia device includes a syringe and an injection catheter to spray the anesthetic liquid to the throat through external force injection. This throat anesthesia device sprays the liquid unevenly, and the spraying speed of the liquid is not easy to control. [0004] Traditional infusion sets generally include infusion needles, in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M39/24A61M19/00A61M31/00A61M5/168
CPCA61M5/16813A61M5/16881A61M19/00A61M31/00A61M39/24A61M2039/242A61M2039/2433A61M2210/1046A61M2210/005
Inventor 吴宇森鲍海涛张昊宁
Owner NANJING HANXIN PHARMA TECH CO LTD