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Liquid flow observer of transfusion apparatus

An infusion device and observer technology, applied in the field of medical infusion devices, can solve the problems of inability to directly observe and measure liquid flow, poor work reliability, complex structure, etc., and achieve the effects of intuitive and reliable observation and measurement, high use safety and reasonable structure

Inactive Publication Date: 2012-03-21
余运贤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention mainly solves the technical problems of complex structure, poor working reliability and inability to visually observe and measure the liquid flow in the prior art liquid flow observer, and provides a simple structure, easy manufacture, which can visually observe and measure the liquid flow. , It is widely used and has the function of preventing blood return, which is a highly safe infusion set liquid flow observer

Method used

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  • Liquid flow observer of transfusion apparatus
  • Liquid flow observer of transfusion apparatus
  • Liquid flow observer of transfusion apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 with figure 2 As shown, the present invention includes a hard casing 1 provided with a liquid medicine circulation chamber and an impeller arranged in the liquid medicine flow chamber;

[0028] The housing 1 is a transparent cuboid, and the upper and lower ends of the housing 1 are respectively provided with a liquid medicine inlet 1.5 and a medicine liquid outlet 1.6 connected to the medicine liquid circulation chamber. The body 1 is composed of corresponding protrusions on the liquid medicine flow channel and flexible elastic sealing components 1.7 at the inlet and outlet parts of the liquid medicine flow channel. Here, the flexible elastic sealing component and the fixed connection structure described above are equivalent to the sealing component and the fixed connection structure at the mouth of a common liquid medicine container (medicine bottle or medicine bag) for inserting pins, so details are not repeated here.

[0029] The liquid medicine c...

Embodiment 2

[0033] The difference between the second embodiment and the first embodiment is: 1. In the second embodiment, the intermediate isolation transmission member between the two blades 2 inner ends in the same through groove is two coil springs, and the inner ends of the corresponding blades are set There are protrusions suitable for coil springs to locate the spring position. 2. The liquid medicine inlet 1.5 and the medicine liquid outlet 1.6 are composed of corresponding protrusions provided with a liquid medicine flow channel on the housing 1, and the medicine liquid inlet 1.5 and the medicine liquid outlet 1.6 are solidly connected with the infusion tube. The detailed structure of the difference between the above two points is a simple and known technology, so it will not be repeated here.

Embodiment 3

[0035] The difference between the third embodiment and the second embodiment is that the intermediate isolation transmission member between the inner ends of the two blades 2 in the same through groove of the third example includes two helical springs and two coil springs on both sides of the helical springs to ensure The positioning slats of the spring are perpendicular to the axis of the shaft. The specific detailed structure is a simple and known technology, so it will not be repeated here.

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Abstract

The invention relates to a liquid flow observer of a medical transfusion apparatus. By using the liquid flow observer of the medical transfusion apparatus, the technical problems that a liquid flow observer in the prior art has a complicated structure and bad work reliability and the liquid flow cannot be obviously observed and metered are solved. The liquid flow observer of the medical transfusion apparatus, which has a simple structure, is easy to manufacture, can be used for obviously observing and metering the liquid flow, has wide use occasions, further has a blood return preventing function, and has quite high use safety, is provided. The liquid flow observer of the medical transfusion apparatus comprises a hard transparent shell provided with a liquid medicine circulating chamber, and an impeller positioned in the liquid medicine circulating chamber; the impeller comprises a rotating shaft and a plurality of blades; the liquid medicine circulating chamber is a cylindrical chamber; the cross section of the liquid medicine circulating chamber is formed by connecting a big circular arc, a small circular arc and transition lines between the big circular arc and the small circular arc end to end; the big circular arc and the small circular arc are concentric; two ends of the rotating shaft are rotationally supported on the shell; the end surfaces of the two ends of the rotating shaft are provided with observing color lumps; the rotating shaft is provided with a plurality of radial slots; the blades can be arranged in the radial slots of the rotating shaft in a radial sliding way; and the outer ends of the blades are in hermetic sliding fit with the surface of the cylindrical chamber.

Description

[0001] technical field [0002] The invention relates to a medical infusion set, in particular to a liquid flow observer of the medical infusion set. [0003] Background technique [0004] In the existing medical infusion set, the Murphy's dropper, which is connected to the infusion tube at the upper and lower ends, is usually used as a flow observer to monitor the infusion situation. In use, the Murphy's dropper must be kept vertical, so it is mainly suitable for indoor and outdoor fixed-point infusion occasions. However, in outdoor mobile applications, especially in mountainous mobile ambulances, it is difficult to keep the Murphy's dropper in a vertical state. In order to prevent the Murphy's dropper from being placed flat and making it difficult to observe the liquid flow and cause air embolism, the ambulance personnel are required to always pay attention to check , which greatly increases the work intensity of medical staff and the risk of medical rescue failure. [...

Claims

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Application Information

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IPC IPC(8): A61M5/175A61M5/36
Inventor 余运贤
Owner 余运贤
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