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Automatic liquid stopping infusion apparatus

An infusion set and stop fluid technology, which is applied in flow monitors, hypodermic injection devices, and devices introduced into the body, etc., can solve the problems of air ingress, inconvenience, and inability to ensure that the infusion tube will not have air columns, etc., to increase safety , the effect of increasing applicability

Pending Publication Date: 2022-05-31
宁波市第九医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In actual application, the volume and weight of the buoyant blocking member are always in a constant state, which leads to different buoyancy in different liquids. Therefore, when the liquid (normal saline, plasma, dialysate, etc.) delivered in the infusion set When there is a difference, the volume of the buoyant plug immersed in the liquid will be different. If it is completely floating above the liquid surface, it will exist. When the buoyant plug blocks the liquid outlet, there may be some air entering the infusion below the dropping funnel In the tube, although the infusion can be automatically stopped, it cannot ensure that there will be no air column in the infusion tube. Once an air column appears, the medical staff still needs to roll the air tube to exhaust. At this time, the patient needs to cooperate, which is very inconvenient

Method used

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  • Automatic liquid stopping infusion apparatus
  • Automatic liquid stopping infusion apparatus
  • Automatic liquid stopping infusion apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of automatic liquid stop transfusion device, refer to Figure 1-Figure 4 As shown, it includes a dripping funnel 1 and an infusion tube 6. The dripping funnel 1 includes a liquid-holding cavity 101 and a liquid inlet 102 and a liquid outlet 103 located at the upper and lower ends of the liquid-holding cavity. The liquid outlet 103 communicates with the infusion tube 6. The bucket 1 and the infusion tube 6 are made of a flexible material as a whole. In this solution, the flexible material is PVC or TPE, and a matching tube 2 is connected between the liquid outlet 103 and the infusion tube 6. The straight guide is provided with a floating plug 8 that can expose the liquid outlet 103 or completely block the liquid outlet 103. The floating plug 8 includes a sealing body 802 whose lower end can be sealed and inserted with the matching pipe 2 and an expansion body 801 whose upper end has a variable volume. , the sealing body 802 is made of a solid elastic material as a...

Embodiment 2

[0048] This embodiment makes improvements on the basis of embodiment 1, with reference to Figure 5 As shown, a magnetic auxiliary mechanism is provided between the floating plug 8 and the matching pipe 2. The magnetic auxiliary mechanism includes a first magnet 15 fixedly arranged at the lower end of the sealing body 802 and a first magnet 15 fixed in the matching pipe 2 and in phase with the first magnet 15. Suction second magnet or metal body.

[0049] In this embodiment, the filter 14 is made of magnetic material or iron. When the sealing body 802 is lowered close to or partially inserted into the matching pipe 2, it can enter the magnetic induction range, and the first magnet 15 and the filter 14 attract each other. Drive the sealing body 802 to drop rapidly to block the liquid outlet 103. This setting can further reduce the probability of gas entering the matching pipe 2. When the sealing body 802 seals the liquid outlet 103, the liquid level in the liquid cavity 101 wil...

Embodiment 3

[0051] This embodiment is improved on the basis of embodiment 2, with reference to Figure 6 As shown, between the floating plug 8 and the liquid-holding cavity 101, a debugging piece for balancing magnetic force and buoyancy is provided. Because the support sleeve 7 is provided in the embodiment, the lower end of the adjustment spring 16 is fixedly connected to the upper end surface of the support sleeve 7, and the upper end of the adjustment spring 16 is fixedly connected to the floating plug 8, and the buoyancy of the floating plug 8+the adjustment spring The sum of the elastic forces of 16>the weight of the floating blocking member 8+the sum of the magnetic force of the magnetic auxiliary mechanism>the elastic force of the debugging spring 16.

[0052] By adding the adjustment spring 16, the magnetic force can be balanced. After the infusion bag is replaced, it can provide the lifting force for the floating blocking member 8 to float upwards, so that the floating blocking ...

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Abstract

The invention relates to the technical field of first-aid equipment, and discloses an automatic liquid stopping infusion apparatus which comprises a drip chamber and an infusion tube, the drip chamber comprises a liquid containing cavity, a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are located in the upper end and the lower end of the liquid containing cavity, and the liquid outlet is communicated with the infusion tube; a floating blocking piece capable of exposing the liquid outlet or completely blocking the liquid outlet is vertically arranged in the liquid containing cavity in a guiding mode, the floating blocking piece comprises a sealing body and an expansion body, the lower end of the sealing body can be matched with the matching pipe in a sealing and penetrating mode, the upper end of the expansion body is variable in size, and an inflation and deflation mechanism capable of inflating or deflating the expansion body is arranged on the matching pipe. The infusion apparatus can be applied to infusion of different liquids, the applicability is remarkably improved, in the replacement and transmission process of the different liquids, automatic liquid stopping can be achieved, the possibility that any gas enters the infusion tube is completely eradicated, and the infusion safety is remarkably improved.

Description

technical field [0001] The invention relates to the technical field of first-aid equipment, in particular to an automatic liquid-stopping infusion set. Background technique [0002] The infusion set is a common medical consumable, after aseptic treatment, it is used for intravenous infusion as a channel between the vein and the pharmaceutical industry. It is widely used in hospitals, health centers and other medical institutions. [0003] Ordinary disposable infusion sets have no automatic sealing function when the infusion bottle is changed or the end of the infusion is completed. , there will be a major safety hazard. If the patient finds out in time, there is already a lot of gas in the blood transfusion set, which makes it difficult for the medical staff to discharge the air in the infusion set when changing the dressing. A small section of air column is eliminated by winding the infusion tube up to the drip funnel. Once there is too much air, the needle can only be pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/14A61M5/175A61M5/40
CPCA61M5/14A61M5/1413A61M5/16813A61M5/16877A61M5/40
Inventor 江涛
Owner 宁波市第九医院
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