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Disposable infusion apparatus

An infusion set and disposable technology, applied in the field of medical equipment, can solve the problems of unstable output pressure of the disposable infusion set, difficulty in accurately controlling the liquid discharge speed of the disposable infusion set, affecting the discharge speed of the disposable infusion set, etc.

Pending Publication Date: 2020-09-04
SHANDONG WEIGAO GROUP MEDICAL POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The suspension height of the medicine bag directly affects the drainage speed of the disposable infusion set, and the inconsistency of the suspension height leads to unstable drainage speed of the disposable infusion set. For special needs such as painful childbirth that require a stable discharge rate, the existing disposable infusion set is difficult to meet these special needs, and the unstable discharge rate of the disposable infusion set may also affect the therapeutic effect of the liquid medicine, and there is a potential Medical safety hazard
[0003] Based on the above problems, the existing disposable infusion set is equipped with an infusion pump and a drug storage balloon. It is still difficult to precisely control the discharge speed of disposable infusion sets
The drug storage balloon uses its own elastic contraction force to pump the drug solution into the vein, and the elastic contraction force of the drug storage balloon is affected by the output of the drug solution, and the elastic contraction force gradually attenuates with the decrease of the output of the drug solution. It can be seen that the elastic contraction force of the drug storage balloon is unstable, causing the output pressure of the disposable infusion set to be unstable, which in turn affects the stability of the discharge speed of the disposable infusion set

Method used

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Embodiment Construction

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0054] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0055] Please refer to Figure 1 to Figure 7 , figure 1 A structural diagram of the disposable infusion set provided by the first specific embodiment of the present invention; figure 2 for figure 1 Partial enlar...

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Abstract

The invention discloses a disposable infusion apparatus. A regulation assembly comprises a pressure regulating cavity corresponding to a liquid injecting opening and a pressure stabilizing cavity corresponding to a liquid draining opening, the pressure regulating cavity communicates with the pressure stabilizing cavity through a regulation opening, and the regulation assembly also comprises a regulation plug of which the regulation end is inserted into the pressure regulating cavity and the pressure stabilizing end is inserted into the pressure stabilizing cavity. The area of the cross sectionof the pressure stabilizing end is greater than that of the regulating end, when flow at the liquid injection opening is increased, intensity of pressure of the regulation end is increased along withincrement of the pressure of the pressure regulating cavity, the pressure of the pressure stabilizing cavity is increased until the pressure of the pressure stabilizing cavity and the pressure of thepressure regulating cavity are consistent, if the pressure of the pressure stabilizing cavity is increased, the intensity of pressure of the pressure stabilizing end is not obviously changed, the flow of the liquid draining opening is unchanged, and the liquid draining speed of the liquid draining opening is stable. When the flow at the liquid injection opening is reduced, the intensity of pressure of the regulation end is reduced along with reduction of the pressure of the pressure adjusting cavity, the pressure of the pressure stabilizing cavity is reduced until, the pressure of the pressure stabilizing cavity and the pressure of the pressure adjusting cavity are consistent, and if the pressure of the pressure stabilizing cavity is reduced, the intensity of pressure of the pressure stabilizing end is not obviously changed, so that the flow of the liquid draining opening is maintained unchanged, and the liquid draining speed of the liquid draining opening is stable. Stable liquid drainage can be realized.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a disposable infusion set. Background technique [0002] In medical institutions, doctors usually use disposable infusion sets to infuse medicinal liquid into patients' veins to treat various diseases. The medicine bag is usually suspended on the infusion rod or the hook above the patient, so that the medicinal liquid is injected into the vein by the disposable infusion set by gravity. The suspension height of the medicine bag directly affects the drainage speed of the disposable infusion set, and the inconsistency of the suspension height leads to unstable drainage speed of the disposable infusion set. For special needs such as painful childbirth that require a stable discharge rate, the existing disposable infusion set is difficult to meet these special needs, and the unstable discharge rate of the disposable infusion set may also affect the therapeutic effect of the...

Claims

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Application Information

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IPC IPC(8): A61M5/148A61M5/168
CPCA61M5/152A61M5/16813
Inventor 王飞魏来王圣运李勇
Owner SHANDONG WEIGAO GROUP MEDICAL POLYMER
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