CN201370844Y - Disposable compressive infusion set - Google Patents

Abstract

The utility model discloses a disposable compressive infusion set, which comprises an infusion tube; a bottle piercing needle is mounted at the upper end of the infusion tube; a breathing pipe is communicated with the bottle piercing needle; a three-way valve is connected to the tail end of the breathing pipe; the outlet of the three-way valve is communicated with the breathing pipe; the main inlet of the three-way valve is communicated with the air; a seal cap is arranged on the outer side of the sub-inlet of the three-way valve; and an inserting mouth for an injector to be inserted in is arranged in the sub-inlet. In order to ensure clean air entering an infusion bottle, the main inlet of the three-way valve is communicated with an air filter. The disposable compressive infusion set adopting the structure has the advantages of reasonable structure, convenient operation and wide infusion speed adjustable range, is suitable for rapid infusion occasions, and is particularly suitable for salving patients.

Description

A kind of disposable pressurizing infusion set

Technical field

This utility model relates to medical instruments field, is specifically related to a kind of disposable pressurizing infusion set.

Background technology

The present disposable transfusion device that uses clinically, mainly comprise tube for transfusion, the tube for transfusion upper end is equipped with the bottle-stinging needle of puncture medicine bottle, be communicated with the breather that communicates with atmosphere on the bottle-stinging needle, transfusion device middle part is equipped with Murphy's burette, actuator and filter, and there is a transfusion needle lower end of tube for transfusion by hose connection, and traditional disposable transfusion device is because simple structure, use simply, use very extensive.The traditional infusion device is to utilize the operation principle of linker to carry out work, by the hydraulic pressure that atmospheric pressure and medicinal liquid fluid column form human body is infused, because atmospheric pressure is certain, so the traditional infusion device is when infusing, its maximum transfusion speed depends on the suspension height of the medicine bottle of infusing, high highly more, transfusion speed is fast more, when infusion bottle hangs when too high, it will very inconvenient changing medicine bottle, and the length of traditional infusion device all is certain, can not suspension too high, so the transfusion speed adjustable range of traditional infusion device is less, low speed transfusion in generally being only limited to; And clinically to transfusion speed require widely differently, slowly transfusion just can be accomplished by the actuator on the transfusion device is very light.But realize quick transfusion, just very difficult when particularly infusing with common model transfusion needle, and change the large size transfusion needle, and not only increased patient's misery, increased the weight of destruction to blood vessel, also strengthened the difficulty of nurse's puncture simultaneously.

The utility model content

The technical problems to be solved in the utility model is to provide a kind of rational in infrastructure, easy to operate at above-mentioned deficiency, the big disposable pressurizing infusion set of transfusion speed adjustable range.

For solving the problems of the technologies described above, this disposable pressurizing infusion set comprises tube for transfusion, the upper end of tube for transfusion is equipped with bottle-stinging needle, be communicated with breather on the bottle-stinging needle, its construction features is: the end of breather is connected with three-way valve, and the outlet of three-way valve is communicated with breather, and the main-inlet of three-way valve communicates with atmosphere, the sub-inlet outside of three-way valve is provided with sealing cap, is provided with the socket that is used for the plug-in mounting syringe in the sub-inlet.

The disposable pressurizing infusion set of this structure promotes the medicinal liquid flow principles by forced air and quickens to infuse.Air pressurizeed carry out in infusion bottle, pressurize in infusion bottle for convenience, the breather end of bottle-stinging needle is connected with a three-way valve; The outlet of three-way valve is communicated with breather, the main-inlet of three-way valve communicates with outside air, so, when adjusting three-way valve, when the main-inlet of three-way valve and outlet are connected, the pressure of air equates with atmospheric pressure in the infusion bottle, and the transfusion speed adjustable range of this moment is consistent with the transfusion speed adjustable range of traditional infusion device; When needs enlarge transfusion device transfusion speed adjustable range, when accelerating transfusion speed, adjust three-way valve, the outlet of three-way valve is communicated with sub-inlet, because the sub-inlet inboard is provided with the syringe body front end and is seated the socket that cooperates, so, the entry needle of syringe is pulled up, after syringe is taken out full air, the syringe body front end is inserted in the sub-inlet of three-way valve the pushing syringe push rod, air in the syringe body is pushed in the infusion bottle, adjust three-way valve then, close the outlet of three-way valve, at this moment, the infusion bottle inner air pressure is artificially strengthened, and the transfusion speed scope is improved greatly; On the higher transfusion speed of needs,, can pass through repeatedly gas injection pressurization realization in infusion bottle in limited time; Pressure in the infusion bottle can reduce gradually along with the carrying out of transfusion, when the infusion bottle internal pressure is reduced to an atmospheric pressure, needs to adjust three-way valve, and three-way valve main-inlet and outlet are communicated with, and transfusion device just returns to transfusion under the natural pressure again like this; In order to prevent that the introduced contaminants dirt enters in the three-way valve by sub-inlet in the infusion process, be bolted with sealing cap in the sub-inlet outside.

In order to guarantee to enter the cleaning of air in the infusion bottle, be communicated with air filter on the main-inlet of three-way valve.

Transfusion device is in infusion process, need constantly from the outside air that sucks of infusion bottle, to keep the infusion bottle inner air pressure identical with external atmosphere pressure, could guarantee that like this medicinal liquid in the infusion bottle instils in the human body continuously, because the breather of bottle-stinging needle directly communicates with atmosphere, and often floating float and dust in the air, if these float and dust are inhaled in the infusion bottle, these float and dust will be imported human vein with medicinal liquid, in blood vessel, form rubbish, cause burden to blood supply, how gathered easy occluding vascular, threat to life; When having antibacterial or virus on these float and the dust, dangerous especially to health, cause cross infection easily.After installing air filter on the three-way valve main-inlet, air suspension thing and dust can be filtered on air filter, antibacterial and virus are also worked as outside infusion bottle, have effectively ensured transfusion safety.

In sum, adopt the disposable pressurizing infusion set of this structure rational in infrastructure, easy to operate, the transfusion speed adjustable range is big, is suitable for the requirement occasion use of transfusion fast, uses when especially being fit to give emergency treatment to a patient.

Description of drawings

In conjunction with the accompanying drawings this utility model is described in further detail:

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

Structural representation when Fig. 2 is this utility model pressure transfusion.

Among the figure: 1 is tube for transfusion, and 2 is bottle-stinging needle, and 21 is breather, and 3 is Murphy's burette, and 4 is actuator, and 5 is filter, 6 is transfusion needle, and 61 is flexible pipe, and 7 is three-way valve, and 71 is valve casing, and 72 is spool, 73 is main-inlet, and 74 is sub-inlet, and 75 are outlet, and 76 is sealing cap, and 8 is syringe.

The specific embodiment

As shown in the figure, this disposable pressurizing infusion set comprises tube for transfusion 1, the lower end of tube for transfusion 1 is plugged with transfusion needle 6 by flexible pipe 61, the tube for transfusion middle part is equipped with Murphy's burette 3, actuator 4 and filter 5, the upper end of tube for transfusion 1 is fixedly connected with the bottle-stinging needle 2 of puncture medicine bottle, fixedly be communicated with breather 21 on the air inlet of bottle-stinging needle 2, in infusion bottle, increase for convenience air pressure, the end of breather 21 is connected with three-way valve 7, the outlet 75 of three-way valve 7 is communicated with breather 21, the main-inlet 73 of three-way valve 7 is communicated with atmosphere, so when the spool 72 of adjusting three-way valve 7, when main-inlet 73 and outlet 75 are communicated with, by law of connected vessels as can be known, air pressure in the infusion bottle will be consistent with external atmosphere pressure, and intravenous drip this moment is the normal pressure transfusion, and the transfusion speed adjustable range is the same with the speed adjustable range of traditional infusion device; In order to increase transfusion speed, sub-inlet 74 inboards of three-way valve 7 are provided with a Plug Division of pegging graft with syringe 8 body forward end seal, when needing to increase transfusion speed, control the valve casing 71 of three-way valve 7, rotary spool 72, the outlet 75 of three-way valve 7 is communicated with sub-inlet 74, again the entry needle of syringe 8 is pulled up, the push-pull bar of pulling syringe 8, make in syringe 8 bodies and be full of air, front end with syringe 8 bodies inserts in the sub-inlet 74 of three-way valve 7 then, the push-pull bar of pushing syringe 8 pushes syringe 8 intrinsic air in the infusion bottle, and this moment, the infusion bottle inner air pressure increased, pressurization finishes, rotary spool 72 is closed three-way valve 7, and the pressure-air in the infusion bottle just can not promote medicinal liquid and comes out from three-way valve 7 reverse flow like this, so the medicinal liquid in the infusion bottle can only be under the promotion of pressure-air, in tube for transfusion 1 and the transfusion needle 6 quick human bodies that instil; Continuous instillation along with medicinal liquid, air pressure in the infusion bottle can reduce gradually, continue pressurization if desired and quicken transfusion, can continue in infusion bottle, to push air, when returning to the natural pressure transfusion if desired, when the infusion bottle inner air pressure is reduced to an atmospheric pressure, rotary spool 72, the outlet 75 of three-way valve 7 is communicated with main-inlet 73, and transfusion device just can be exchanged under natural pressure and infuses like this; In order to prevent natural pressure when transfusion, the impurity and the dust that suspend in the air enter infusion bottle, be communicated with air filter 22 on the main-inlet 73 of three-way valve 7, guarantee the cleaning of sub-inlet 74 when preventing that this transfusion device from infusing under the natural pressure state, be bolted with sealing cap 76 in the outside of sub-inlet 74.

Claims (2)

1, a kind of disposable pressurizing infusion set, comprise tube for transfusion (1), the upper end of tube for transfusion (1) is equipped with bottle-stinging needle (2), be communicated with breather (21) on the bottle-stinging needle (2), it is characterized in that: the end of breather (21) is connected with three-way valve (7), the outlet (75) of three-way valve (7) is communicated with breather (21), the main-inlet (73) of three-way valve (7) communicates with atmosphere, sub-inlet (74) outside of three-way valve (7) is provided with sealing cap (76), and sub-inlet is provided with the socket that is used for the plug-in mounting syringe in (74).

2, disposable pressurizing infusion set as claimed in claim 1 is characterized in that: be communicated with air filter (22) on the main-inlet (73) of three-way valve (7).

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