CN2502713Y - Exhuast needle for anti-backflow pressure transfusion system - Google Patents

Abstract

The utility model relates to an exhausting acupuncture apparatus of antireflux infusion device in which pressure can be imposed; the exhausting passage tube of which is an exotheca tube that is provided with an antireflux exhausting inner core in which pressure can be imposed; an exhausting pinhead is fixed at the upper part of the exotheca tube. An infusion device composed of the utility model and an infusion tube apparatus, when infusing normally, can reduce the likely pollution caused by infusion to the lowest degree since the medical solution is unable to contact an air filtration chip for the function of the antireflux exhausting inner core in which pressure can be imposed; the operation of imposing pressure and infusing is convenient, the medical solution does not leak and the fastest infusing speed can reach 5000 ml per hour. The utility model has the advantages of simple structure, low production cost and easy popularization and use.

Description

But anti-reflux pressurizing infusion set aerofluxus needle set

This utility model relates to transfusion device aerofluxus needle set.

In the prior art, the aerofluxus needle set of transfusion device is fixedly connected and forms as the flexible pipe that has air filtering core of exhaust passage pipe by the aerofluxus syringe needle and with the aerofluxus syringe needle.The transfusion pipe of this aerofluxus needle set and transfusion device uses simultaneously.During normal infusion, because aerofluxus needle set medicinal liquid easily backflows and contacts the medicinal liquid vulnerable to pollution with air filtering core; During pressure transfusion, generally clamp the flexible pipe of aerofluxus needle set earlier, to infusion bottle gas injection repeatedly, pressure transfusion is very inconvenient, and valve protection cap pinprick place medicinal liquid very easily leaks in the pressure transfusion process, influences the effect of pressure transfusion through the valve protection cap of infusion bottle for the reuse syringe.Promptly use the automatic infusion pump transfusion, its maximum transfusion speed can only reach per hour 1000 milliliters, can not satisfy the needs that severe hypovolemic shock patient is rescued.

The purpose of this utility model is: but design a kind of anti-reflux pressurizing infusion set aerofluxus needle set.

The technical solution of the utility model is: its exhaust passage pipe is equipped with can the pressurize epitheca pipe of aerofluxus inner core of anti-reflux for the bottom, and the aerofluxus syringe needle is fixed on the top of epitheca pipe.

Owing to adopt technique scheme, the transfusion device that uses this utility model and transfusion pipe to form, during normal infusion, the effect of aerofluxus inner core because anti-reflux can pressurize, medicinal liquid can not contact with air filtering core, the pollution that transfusion may cause can be reduced to minimum level; During pressure transfusion, can can pressurize the aerofluxus inner core to the infusion bottle gas injection of directly pressurizeing by anti-reflux by syringe, swift to operate, convenient, exhaust needle does not exist medicine to leak in pressurization and the infusion process, can make the maximum transfusion speed of transfusion device reach per hour 5000 milliliters, can meet clinical needs fully.This utility model is simple in structure, with low cost, promotes the use of easily.

Below in conjunction with the embodiment accompanying drawing this utility model is done to describe further.

Fig. 1 is this utility model cutaway view;

Fig. 2 is the anti-reflux aerofluxus inner core cutaway view that can pressurize.

In conjunction with Fig. 1, but anti-reflux pressurizing infusion set aerofluxus needle set, it is by aerofluxus syringe needle 1, as the bottom of row's channel can the pressurize epitheca pipe 2 of aerofluxus inner core 3 of anti-reflux is housed and forms, and aerofluxus syringe needle 1 is fixed on the top of epitheca pipe 2.Anti-reflux can pressurize aerofluxus inner core 3 structures with reference to shown in Figure 2, and it is made of pressurization interface 4, air filtering core 5 and unidirectional exhaust flange 6, and air filtering core 5 is fixed on the inside of pressurization interface 4, and unidirectional exhaust flange 6 is fixed on the top of pressurization interface 4.Unidirectional exhaust flange 6 is by there being certain elastic medical material to make, and its top is sealed, and tube wall vertically has symmetrically arranged designated port.

In conjunction with Fig. 1, Fig. 2, when using this utility model to carry out pressure transfusion, syringe can be by anti-reflux 4 pairs of infusion bottles of pressurization interface of aerofluxus inner core 3 gas injection of directly pressurizeing of can pressurizeing, designated port on the unidirectional exhaust flange 6 opens and is convenient to air admission at this moment, after the pressurization gas injection finishes, infusion bottle intrinsic pressure powerful when atmospheric pressure the designated port closure on the unidirectional exhaust flange 6, realize the anti-reflux pressure transfusion; When carrying out normal infusion with this utility model, pressure is less than atmospheric pressure in the infusion bottle, and air is through air filtering core 5.Automatically enter infusion bottle by the designated port on the unidirectional exhaust flange 6, realize that normal pressure is anti-reflux, the antipollution transfusion.

This utility model can be formed transfusion device with transfusion pipe split, also can with the conjuncted composition transfusion device of transfusion pipe.

Claims (3)

1. But 1, anti-reflux pressurizing infusion set aerofluxus needle set, it is by aerofluxus syringe needle (1), and row's channel group relative, it is characterized in that: described exhaust passage pipe is equipped with can the pressurize epitheca pipe (2) of aerofluxus inner core (3) of anti-reflux for the bottom, and aerofluxus syringe needle (1) is fixed on the top of epitheca pipe (2).
2. But 2, anti-reflux pressurizing infusion set aerofluxus needle set according to claim 1, it is characterized in that: described anti-reflux can pressurize aerofluxus inner core (3) by pressurization interface (4), hollow filter element (5) and unidirectional exhaust flange (6) formation, air filtering core (5) is fixed on the inside of pressurization interface (4), and unidirectional exhaust flange (6) is fixed on the top of pressurization interface (4).
3. But 3, anti-reflux pressurizing infusion set aerofluxus needle set according to claim 2, it is characterized in that: described unidirectional exhaust flange (6) tube wall vertically has symmetrically arranged designated port.

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