CN2181946Y

CN2181946Y - Safety infusion device

Info

Publication number: CN2181946Y
Application number: CN 94204496
Authority: CN
Inventors: 曹浩明
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-02-18
Filing date: 1994-02-18
Publication date: 1994-11-09
Anticipated expiration: 2004-02-18

Abstract

The utility model relates to a safety infusion apparatus for a patient's vein infusion. The infusion channel of the infusion apparatus in the prior art can not be closed after liquid is completely infused, and air is easy to enter veins to cause accidents. The utility model is composed of a casing and a cover. A sinkage valve is arranged in the infusion apparatus, so the utility model has the advantages that the infusion channel can be automatically closed after liquid is completely infused, the air can not enter the veins of the human body, the manufacture and the use are convenient, the reliability is high, etc.

Description

Safety infusion device

This utility model relates to a kind of medical apparatus and instruments, the safe transfusion system that particularly a kind of patients venous transfusion is used, and it is applicable to all transfusable patients.

Transfusion device of the prior art, after having infused, infusion channel can not closed, and is still open-minded, and at this moment air just can enter tube for transfusion, even venous blood can blow back in the tube for transfusion, forms thrombosis, easily forms blood vessel embolism accidentally, causes accident.At present, for addressing this problem, hospital mostly monitors infusion process by families of patients, when soon being totally lost liquid, going to call out the nurse by family members handles, but this way tends to the inadvertent (especially transfusion at night) because of family members medicinal liquid taking place and drip off undiscovered situation appearance, causes contingency thus.

The purpose of this utility model is to overcome existing above-mentioned deficiency in the prior art, and infusion channel can be closed automatically, air can not enter the venous safe transfusion system and provide behind a kind of liquid of being totally lost.

The purpose that this utility model proposed can be achieved through the following technical solutions: this safe transfusion system is made up of shell and lid, and is provided with the sink-float circle in transfusion device.

Description of drawings is as follows:

Fig. 1 is the structural representation of this utility model when dropping liquid.

Structural representation when Fig. 2 drips off liquid for this utility model.

Fig. 3 is the schematic cross section of this utility model sink-float valve.

Fig. 4 is the schematic cross section of the various sink-float valves of this utility model.

Fig. 5 is user mode figure of the present utility model.

Fig. 6 is the sketch map of another kind of structure of the present utility model when dropping liquid.

Fig. 7 is the sketch map of another kind of structure of the present utility model when dripping off liquid.

Following this utility model will be in conjunction with the accompanying drawings, and be described in further detail by embodiment:

Referring to Fig. 1, Fig. 2, Fig. 3, this safe transfusion system is made up of liquid-drop machine I, lid 6, shell 7, sink-float valve 3, but lid 6 Ka Gai are on shell, the feed liquor mouth of pipe 1 is arranged on the lid 6 of liquid-drop machine I, sink-float valve 3 also is set in the liquid-drop machine I, sink-float valve 3 is made up of float valve 10 center rod 9 and piston 4, and float valve 10 is a hollow and airtight air cavity.One limit water wing 8 is arranged on the

lid

6, and 8 of limit water wings limit the height of sink-float valve 3 come-ups.During use, liquid enters the liquid-drop machine I by the feed liquor mouth of pipe 1, and sink-float valve 3 come-up is infused, and when liquid drips off, the valve 3 that then rises and falls sinks, and piston 4 is blocked the fluid mouth of pipe 5, and this moment, transfusion stopped.

Referring to Fig. 4, the float valve 10 in the sink-float valve 3 can be made other shape as shown in the figure.

Referring to Fig. 5, narrate the working condition of safe transfusion system in whole infusion process below.Liquid when transfusion in the saline bottle 11 enters the liquid-drop machine I by the feed liquor mouth of pipe 1, float valve 10 come-ups in the sink-float valve 3, extract body on the piston 4 is flowed out from the bottom fluid mouth of pipe 5 of liquid-drop machine I, and in needle-like 12 input patient bodies, speed regulator 13 is in order to regulate the speed of dripping of liquid.When liquid dripped off gradually, float valve 3 descended with the decline of liquid level, and piston 4 is just blocked the fluid mouth of pipe 5 of liquid-drop machine I bottom, and transfusion stops, and at this moment, air can be by the liquid-drop machine I to entering human vein; If will continue transfusion, only need to change saline bottle 11 or add liquid, infusion channel is promptly open-minded.

Liquid-drop machine I in the safe transfusion system can be used as the safety (shown in dotted line) of a transfusion, connects a general infusion set in its lower section.

Referring to Fig. 6, Fig. 7, in sink-float valve 3, also can add a heavy valve 14, heavy valve 14 is out the container of pagoda of bowls shape.When a body is intact, helps piston 4 and block the fluid mouth of pipe more tightly.

In addition, also can be on the liquid-drop machine shell of safe transfusion system light-operated switch of clamping, an external alarm promptly can be used to report to the police.Float valve is made with air-locked material, because fluctuating of the valve that rises and falls in the liquid-drop machine starts light-operated switch, thereby make alarm equipment alarm.

The utility model compared with prior art, have the following advantages: behind the liquid of being totally lost, infusion channel meeting autoshutdown, air can not enter human vein, thereby has avoided the generation of many contingencies, and patient's infusion safety is improved greatly, simultaneously, its manufacturing and easy to use, cost is low, and uses reliable.

Claims

1, a kind of safe transfusion system is characterized in that: it is made up of shell (7) and lid (6), and is provided with sink-float valve (3) in transfusion device (I).

2, safe transfusion system as claimed in claim 1, it is characterized in that: said sink-float valve (3) is made up of float valve (10), center rod (9) and piston (4), one end of center rod (9) is connected with float valve (10), and the other end is connected with piston (4).