Backflow prevention device for infusion apparatus and drainage bag

A technology for preventing backflow and infusion set, which is applied in the direction of instruments, flow control, suction devices, etc., to achieve the effects of wide application, low cost, and simple and ingenious design.

Pending Publication Date: 2021-08-24
SHANGHAI FIRST PEOPLES HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no related report about a kind of anti-backflow device for infusion sets and drainage bags with simple and ingenious design, low cost, wide application and automation.

Method used

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  • Backflow prevention device for infusion apparatus and drainage bag
  • Backflow prevention device for infusion apparatus and drainage bag
  • Backflow prevention device for infusion apparatus and drainage bag

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0032] Please see attached Figure 1-2 , figure 1 It is a schematic front view of the working principle of an anti-backflow device for infusion sets and drainage bags of the present invention, figure 2 It is a top view schematic diagram of the working principle of an anti-backflow device for infusion sets and drainage bags of the present invention. An anti-backflow device for infusion sets and drainage bags, the anti-backflow device 1 includes a tube wall 11 and three curved fan-shaped valves 12; the three curved fan-shaped valves 12 constitute the anti-backflow device 1 open or closed structure; the middle part of the three curved fan-shaped valves 12 naturally surrounds a fluid hole 13; figure 1 Schematic diagram of middle A and figure 2 The schematic diagram in A is the situation during normal infusion. During normal infusion, the solution can flow through the liquid hole 13 to the direction of the needle or drainage bag, and the arrow is the flow direction of the solu...

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PUM

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Abstract

The invention relates to an anti-backflow device for an infusion apparatus and a drainage bag. The anti-backflow device comprises a tube wall and three fan-shaped valves with radians, wherein the fan-shaped valve is of a structure simulating a venous valve and a half-moon valve of a human body; the bottoms of the three fan-shaped valves with radians are naturally surrounded to form a liquid passing hole; the fan-shaped valve is made of a medical plastic film material; the anti-backflow device can be applied to various devices with guide pipes and has an anti-backflow structure. The device has the advantages of simple and ingenious design, convenience in material taking and low manufacturing cost; the application range is wider, and the anti-backflow function in most catheters can be achieved through the device; the anti-backflow device has no polarity requirement, and the function of the one-way valve can be played in any direction.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an anti-backflow device for infusion sets and drainage bags. Background technique [0002] Disposable infusion sets and disposable drainage bags are commonly used clinical medical devices. When no one is accompanying the bed or the person accompanying the bed is not concentrated, it is easy to cause blood to flow back after the solution is dripped, causing unnecessary panic and injury to the patient and his family; The location of the bag can lead to regurgitation of the contents. According to this problem, at present there are many alarm devices for monitoring backflow and infusion sets with shut-off function, but all kinds of backflow alarm devices on the market are expensive and complicated in principle, and cannot be applied clinically; Functional infusion sets have complex design, large volume, high cost of mass production, and difficult processing; and the interna...

Claims

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Application Information

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IPC IPC(8): A61M1/00A61M5/14A61M5/168
CPCA61M5/14A61M5/16881A61M2005/1401
Inventor 李勇爱付迪尹华斌宋滇文孟通
Owner SHANGHAI FIRST PEOPLES HOSPITAL
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