CN2449734Y

CN2449734Y - Single-piston bidirectional valve controlled safety transfusion system

Info

Publication number: CN2449734Y
Application number: CN 00244872
Authority: CN
Inventors: 刘�文
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-11-01
Filing date: 2000-11-01
Publication date: 2001-09-26
Anticipated expiration: 2010-11-01

Abstract

The utility model relates to a single-piston bidirectional door controlled safety transfusion device which comprises a Murphy pipe body, a liquid inlet passage and a liquid outlet passage. The utility model is characterized in that the Murphy pipe body is divided into an upper space and a lower space by a partition sheet, the upper space is divided into a drip cavity and a float moving cavity by a partition board arranged on the partition sheet, the partition board and the partition sheet are respectively provided with a liquid passing hole and a valve hole, a hollow float is fixedly connected with a movable plug through a shifting rod travelling through the valve hole, the movable plug, the valve hole and a liquid outlet correspond, and a liquid inlet and the drip cavity correspond. The utility model has the advantages of simple structure, low price, simple operation, etc. and can automatically prevent patients' blood from returning or prevent the air from entering the patients' bodies.

Description

The two-way gate safe transfusion system of single plug

This utility model relates to a kind of medical apparatus, particularly a kind of infusion set of the usefulness of infusing.

Existing transfusion device generally is to be made of the Fei Shi pipe in the Meng of bringing liquid passage and liquid outlet channel into, is provided with an external manual adjustment mechanism on liquid outlet channel.The transfusion device of this structure exists following deficiency, and whether patient or nurse personnel careful attention liquid constantly are totally lost, if do not realize, after medicinal liquid is totally lost, liquid level will constantly descend, to making the air admission human body or cause blood back danger, and when the nurse changes liquid, then to readjust, the following air of Fei Shi pipe in the Meng is drained, and so, patient is when transfusion, constantly note the rest that transfusion device can not get loosening because of having to, and increase the loaded down with trivial details property of nurse operation; If another of this transfusion device is not enough is exactly the patient that infused because of going to toilet or other thing needs when mobile, and walking is inconvenience extremely, accidentally, is easy to cause blood back.In order to solve this this problem, many technical staff have done number of research projects, in conjunction with electronics technology, produce the electronic infusion pump, speed governing more accurately, and when liquid is totally lost, give the alarm, but its cost is very expensive, thereby can not get using widely.

The purpose of this utility model just provides a kind of two-way gate safe transfusion system of single plug simple in structure, cheap and easy to use, and it can automatically prevent in patient's blood back or air admission patient's the body.

The purpose of this utility model is to realize by such technical scheme, it includes Fei Shi body in the Meng, feed pathway and liquid outlet channel, it is characterized in that: partition will be separated into upper and lower two spaces the Meng in the Fei Shi body, the dividing plate that is arranged on the partition is partitioned into present drip chamber and float mobile cavity with the sky, be respectively arranged with liquid pass hole, valve opening on dividing plate and the partition, the float of hollow by pass valve opening move bar and moving plug is connected, moving plug is corresponding with valve opening and liquid outlet, and inlet is corresponding with present drip chamber.

Operation principle of the present utility model is such: during transfusion, can observe the drop situation by present drip chamber, medicinal liquid is gone in patient's body through feed pathway, liquid pass hole, valve opening, liquid outlet channel liquid; When the medicinal liquid in the infusion bottle was totally lost, the interior liquid level of Fei Shi pipe in the Meng descended, and float moves down by moving bar drive moving plug, and until liquid outlet is blocked, whole liquid remains static, and has prevented that air from flowing into human body, stoped blood back; In patient transfer or moving process, when infusion bottle was low than patient's position, medicinal liquid refluxed, the interior liquid level of Fei Shi pipe in the Meng rises, and float moves by moving on the bar drive moving plug, until valve opening is blocked, make the liquid in the whole transfusion system stop to flow, prevented patient's blood back; Behind the position of recovering infusion bottle, liquid is dirty, and moving plug moves down, and valve opening is opened, and makes infusion process reenter stable duty.

Owing to adopted technique scheme, the utlity model has following advantage:

1. simple in structure, low cost of manufacture;

2. easy and simple to handle, do not need special operant skill; Guarantee that liquid level can not drop to the below of Fei Shi pipe in the Meng, make nurse's the liquid that changes operate more convenient.

3. security insurance as long as one enter duty, just can automatically prevent in patient's blood back or air admission patient's the body, make patient or nursing staff needn't the moment expend energy on egregiously;

4. the drop number is still visual, and during drop, float can up-down vibration, guarantees that liquid was unobstructed.

Description of drawings of the present utility model is as follows:

Fig. 1 is a structural representation of the present utility model;

Among the figure: 1. the Meng Fei Shi body; 2. feed pathway; 3. liquid outlet channel; 4. partition; 5. dividing plate; 6. liquid pass hole; 7. valve opening; 8. float; 9. move bar; 10. moving plug.

The utility model is described in further detail below in conjunction with drawings and Examples:

As shown in Figure 1, this utility model includes Fei Shi body 1 in the Meng, feed pathway 2 and liquid outlet channel 3, it is characterized in that: partition 4 is separated into upper and lower two spaces with the Meng in the Fei Shi body 1, the dividing plate 5 that is arranged on the partition 4 is partitioned into present drip chamber and float mobile cavity with the sky, be respectively arranged with liquid pass hole 6, valve opening 7 on dividing plate 5 and the partition 4, the float 8 of hollow is connected with moving plug (10) by the bar 9 that moves that passes valve opening 7, moving plug 10 is corresponding with valve opening 7 and liquid outlet, and inlet is corresponding with present drip chamber.

Operation principle of the present utility model is such: during transfusion, can observe the drop situation by present drip chamber, medicinal liquid is gone in patient's body through feed pathway 2, liquid pass hole 6, valve opening 7, liquid outlet channel 3 liquid; When the medicinal liquid in the infusion bottle was totally lost, the interior liquid level of Fei Shi pipe in the Meng descended, and float 8 moves down by moving bar 9 drive moving plugs 10, and until liquid outlet is blocked, whole liquid remains static, and has prevented that air from flowing into human body, stoped blood back; In patient transfer or moving process, when infusion bottle was low than patient's position, medicinal liquid refluxed, the interior liquid level of Fei Shi pipe in the Meng rises, and float 8 moves by moving on the bar 9 drive moving plugs 10, until valve opening 7 is blocked, make the liquid in the whole transfusion system stop to flow, prevented patient's blood back; Behind the position of recovering infusion bottle, liquid is dirty, and moving plug 10 moves down, and valve opening is opened, and makes infusion process reenter stable duty.

As shown in Figure 1, in order to improve the sensitivity that float moves up and down, the profile of float 8 preferably adopts spherical; Certainly, it is cylindric that the profile of float 8 also can be, and can also be other the shape that can move in mobile cavity.

As shown in Figure 1, for the ease of operation, the float 8 and the Meng are decorated with corresponding graduation mark respectively on the Fei Shi body 1.When beginning transfusion, the graduation mark of adjusting on the float 8 is concordant with the graduation mark on the Meng Fei Shi body 1, just determines at an easy rate or observes the duty whether transfusion device is in the best.

Claims

1. a list is filled in two-way gate safe transfusion system, include Fei Shi body in the Meng (1), feed pathway (2) and liquid outlet channel (3), it is characterized in that: partition (4) will be separated in the Fei Shi body in the Meng (1), following two spaces, the dividing plate (5) that is arranged on the partition (4) is partitioned into present drip chamber and float mobile cavity with the sky, be respectively arranged with liquid pass hole (6) on dividing plate (5) and the partition (4), valve opening (7), the float of hollow (8) is connected with moving plug (10) by the bar (9) that moves that passes valve opening (7), moving plug (10) is corresponding with valve opening (7) and liquid outlet, and inlet is corresponding with present drip chamber.

2. the two-way gate safe transfusion system of single plug as claimed in claim 1, it is characterized in that: the profile of float (8) is spherical.

3. the two-way gate safe transfusion system of single plug as claimed in claim 1, it is characterized in that: the profile of float (8) is cylindric.

4. as claim 1,2, the two-way gate safe transfusion system of 3 described single plugs, it is characterized in that: be decorated with corresponding graduation mark respectively on float (8) and the Fei Shi body in the Meng (1).