CN2810620Y

CN2810620Y - Safety transfusion device

Info

Publication number: CN2810620Y
Application number: CN 200520030690
Authority: CN
Inventors: 闫平
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-16
Filing date: 2005-05-16
Publication date: 2006-08-30
Anticipated expiration: 2015-05-16

Abstract

An intravenous drip transfusion device belongs to medical equipment. When transfusion is finished, the existing venous transfusion device prevents air from entering veins of a human body by the method that a syringe needle is pulled out in time and can not satisfy the clinical demand of the simultaneous transfusion of a plurality of bottles of liquid, which brings trouble to nursing work. The utility model is provided with a film in a Murphy's dropper; the end of a lower catheter of the transfusion device is provided with a side tube. When liquid is transfused up, and the liquid level in the dropper falls, a transfusion pipeline is automatically closed. A plurality of bottles of liquid can be transfused simultaneously, and the transfusion state of each of the bottles of the liquid can be optionally controlled. In the process of transfusion, micro air bubbles are stopped from being generated and the transfusion device has obvious use traces after used. The utility model has the characteristics of safety, use convenience, simple production technology, low cost, etc.

Description

Safe transfusion system

Technical field: this utility model is a kind of intravenous drip transfusion device, belongs to medical apparatus and instruments.

Background technology: mainly there is following problem in the intravenous transfusion device that present hospital generally uses:

1. whether its liquid is totally lost and is observed by Murphy's burette.The medical personnel and the person of accompanying and attending to need in time to observe liquid in the bottle in the infusion process, if idol has carelessness, air just might enter tube for transfusion, makes troubles to nursery work, even jeopardizes patient's life.

2. whether existing intravenous transfusion device used, and did not have any sign, and the ordinary people can't distinguish that this just makes the transfusion device secondary flow into the medical market becomes possibility, serious threat citizen health.

3. when the very fast or institute's transfusion viscosity of transfusion speed is big, the micro-bubble that drop evokes is difficult for dissipating and can seeing through filter screen, and the bleeding of micro-bubble is cumbersome, if frequent operation must bring certain stress and increase the probability of liquid medicine contamination to medical personnel.

4. when needs of patients defeated two bottles even three bottles of liquid, general infusion set defeated again next bottle after a bottle of can only being totally lost, during need constantly to observe liquid level in the Murphy's burette, ask medical personnel to change bottle, waste time and energy.

Existing technological invention is all because safety is relatively poor, and the shortage actual application value, these problems still allow doctor and patient feel headache so far.

Summary of the invention: the purpose of this utility model is: a kind of safe transfusion system is provided, can effectively overcome the inconvenience of general infusion set, it can stop the generation of trickle bubble in infusion process, when being totally lost, liquid can in time seal infusion pipeline, have tangible use vestige, and can realize that many bottles of liquid infuse simultaneously.

Technical solution of the present utility model is: the upper conduit and the downcomer of transfusion device are respectively inserted the Murphy's burette sub-fraction, in Maufee type dropper, put a lightweight diaphragm, in infusion process, diaphragm floats on the liquid level, liquid drops on the diaphragm earlier, around diaphragm, flow down again, effectively stopped drop and evoked the possibility of micro-bubble.When liquid was totally lost in the infusion bottle, the liquid levels in the Murphy's burette will descend gradually, and diaphragm seals infusion pipeline automatically thereupon descending, stoped the air admission human vein.After transfusion finishes, there is sub-fraction liquid to discharge in the Murphy's burette, has tangible use vestige.

Described lightweight diaphragm is made by arbitrary materials such as medical plastic, medical grade rubber, medical latex or composite, and rounded, its diameter is slightly less than the Murphy's burette internal diameter.For guaranteeing that diaphragm swims on the liquid level all the time, diaphragm-operated edge is cavity-like, also annular medical plastic and diaphragm edge pressing can be the diaphragm edge hardening, thereby make whole diaphragm keep unfolding state.

Add small amount of liquid in the infusion process in transfusion device, available syringe is added by side pipe after drawing.

When needing two bottles of liquid to infuse simultaneously, the transfusion needle of a transfusion device wherein can be removed, the end of its downcomer is inserted in the side pipe of back one transfusion device, regulate two transfusion devices then to the normal infusion state, the transfusion needle of back one transfusion device is thrust patient's intravenous, the beginning normal infusion.

Description of drawings: the utility model is described in further detail below in conjunction with drawings and Examples.

The state of liquid in dropper when Fig. 1 is embodiment 1 transfusion device normal infusion.

The state of liquid in dropper when Fig. 2 is embodiment 1 transfusion device transfusion end.

Fig. 3 is the state when liquid drained in the downcomer after the transfusion of embodiment 1 transfusion device finished.

Fig. 4 is the state of embodiment 2 transfusion device when adding small amount of liquid in transfusion device.

Fig. 5 is the state of 2 two bottles of liquid of embodiment transfusion device when infusing simultaneously.

1. Maufee type droppers among the figure, 2. lightweight diaphragm, 3. upper conduit, 4. downcomer, 5. side pipe, 6. air filter, the 7. end of

downcomer

4,8. downcomer 4 is suitable for reading

The specific embodiment: during the transfusion beginning,, when in the dropper appropriate amount of fluid being arranged, make dropper vertical earlier Murphy's burette 1 accumbency, enter the normal infusion state, as Fig. 1, diaphragm 2 swims on the liquid level, drop is flowed out by upper conduit 3 and drops on the diaphragm, more slowly from around flow down, can not produce microvesicle;

When transfusion finished, the liquid level of liquid descended in the Murphy's burette 1, and buoyant diaphragm 2 is also along with decline, when liquid level drops to the suitable for reading 8 time of downcomer 4, diaphragm is with 8 complete closed suitable for reading, as Fig. 2, infusion process stops automatically, and air is isolated in the Murphy's burette 1 can not enter downcomer 4;

If will be with in the input of the liquid feed in the transfusion device patient body, only with hand pinches the diaphragm 2 residing positions in the Murphy's burette 1 gently, then the liquid in the downcomer 4 enters transfusion state again, when transfusion finishes, decontrol diaphragm 2 or close flow controller, infusion process stops once more, as Fig. 3, at this moment have only small amount of liquid to stay in the Murphy's burette 1 and can't discharge, thereby make this transfusion device have tangible use vestige.

Among another embodiment shown in Figure 4, in transfusion device, add small amount of liquid in the infusion process, after then available syringe is drawn, entry needle is directly penetrated in the rubber stopper on the already sterilised side pipe 5, inject, regulate the speed of drop then by the flow controller on the transfusion device, thus the speed that liquid enters human body that effectively control adds.

Among another embodiment shown in Figure 5, when two bottles of liquid are infused simultaneously, the transfusion needle of a transfusion device wherein can be removed, the end 7 of its downcomer 4 is inserted in the side pipe 5 of back one transfusion device, regulate two transfusion devices then to the normal infusion state, the intravenous injection of back one transfusion device is needled into patient's vein, the beginning normal infusion.Can reconcile the speed of drop by the flow controller on every transfusion device in the infusion process, when the liquid in infusion bottle wherein was totally lost, the diaphragm 2 in this transfusion device dropper is the sealing liquid-transport pipe-lines automatically, and transfusion stops.Another transfusion device is operate as normal still, seals liquid-transport pipe-line automatically up to its diaphragm 2, and two bottles of liquid all are totally lost.If need with in two the intravital liquid feed input of transfusion device liquid patient bodies, pinch diaphragm 2 present positions in the transfusion device dropper respectively with hands, the liquid in these two transfusion device downcomers enters transfusion state, finishes up to transfusion, close flow controller or decontrol diaphragm, infusion process stops.

Characteristics of the present utility model are: transfusion can stop voluntarily when finishing and not need the people on duty; Infusion process Middle interpolation liquid is simple and easy to do; Can many bottles liquid infuse simultaneously and can arbitrarily control the transfusion of every bottle of liquid State; Production technology and traditional infusion device are similar; Production cost does not almost increase; Common after using once The people just can obviously identify and use and be forced to force to destroy. Both effectively improved the security of transfusion device, Alleviate again medical personnel's burden, also can alleviate patient and family members' thought misgivings simultaneously.

Claims

1. an intravenous transfusion device comprises bottle plug puncture unit, Maufee type dropper (1), upper conduit (3), downcomer (4), flow controller and intravenous needle etc., it is characterized in that: be provided with a lightweight diaphragm (2) in the described Maufee type dropper (1).

2. transfusion device according to claim 1 is characterized in that: some inserts the end of upper conduit (3) in the Maufee type dropper (1).

3. transfusion device according to claim 1 is characterized in that: some inserts the upper end of downcomer (4) in the Maufee type dropper (1).

4. transfusion device according to claim 1 is characterized in that: downcomer (4) has a branch on the top of air filter (6)---and side pipe (5) is plugged with stopper on the mouth of pipe of side pipe (5).

5. transfusion device according to claim 1 is characterized in that: the external diameter of the conduit (7) of the end of downcomer (4) and intravenous needle connection and the internal diameter of side pipe (5) match.