CN211383169U - Improved anti-reflux pressurized infusion apparatus - Google Patents

Abstract

An improved anti-reflux pressurized infusion apparatus comprises an infusion hose, a bottle stopper puncture needle, a three-way valve and an anti-reflux pressurized mechanism, wherein the bottle stopper puncture needle is communicated with the top of the infusion hose, and the three-way valve is communicated with the bottom of the infusion hose; the anti-reflux pressurization type mechanism comprises a pressurization pipe, an upper bayonet ring, an upper sphere, an upper three-lobe orifice, a lower bayonet ring, a lower sphere and a lower three-lobe orifice; the upper bayonet ring and the upper three-lobe orifice are fixedly arranged at the part, close to the top of the pressure pipe, in the infusion hose, the lower bayonet ring and the lower three-lobe orifice are fixedly arranged at the part, close to the bottom of the pressure pipe, in the infusion hose, the upper ball body is vertically movably arranged at the middle part of the upper bayonet ring and the upper three-lobe orifice, and the lower ball body is vertically movably arranged at the middle part of the lower bayonet ring and the lower three-lobe orifice; the transfusion device designed by the scheme can prevent venous blood backflow of a transfusion patient after the structure is improved, and can also prevent air from mistakenly entering a transfusion tube and prevent liquid from flowing back into the transfusion bottle during pressurized transfusion.

Description

Improved anti-reflux pressurized infusion apparatus

Technical Field

The utility model belongs to the technical field of the transfusion system, concretely relates to improvement type prevents pressurization formula transfusion system against current.

Background

A disposable infusion set is a common medical consumable, is made of PVC (polyvinyl chloride) serving as a raw material, and is used for intravenous infusion by establishing a channel between a vein and liquid medicine after aseptic treatment. The working principle is that under the action of atmospheric pressure, liquid in the bottle flows into the dropping funnel along a thin infusion hose, and when the pressure of a water column of the dropping funnel is greater than the venous pressure, the liquid in the bottle flows into veins along the hose. The infusion apparatus is generally formed by connecting eight parts, namely a vein needle or an injection needle, a needle head protective cap, an infusion hose, a liquid medicine filter, a flow rate regulator, a drip cup, a bottle stopper puncture outfit, an air filter and the like, and a part of the infusion apparatus is also provided with an injection part, a medicine adding port and the like.

The existing clinical disposable infusion set generally has the following defects: (1) at the end of transfusion, if the transfusion tube is not replaced in time, the phenomenon of air mistakenly entering the transfusion tube cavity or even the Murphy's dropper cavity is often caused, which easily causes air embolism and causes unnecessary medical accidents. (2) When a patient changes the body position (such as going to a toilet, rescuing in the field, transferring the patient in a long distance and the like), once the hanging position of an infusion bottle is too low, blood often flows back to the infusion tube and even a Murphy's dropper cavity, and if the blood is not treated in time, the infusion tube is often blocked. (3) In the operation process or the transfusion process of arterial pressurized transfusion (such as carotid thrombolytic therapy of cerebral infarction, femoral arterial pressurized transfusion rescue and the like), the phenomenon of blood backflow often occurs. (4) The disposable infusion apparatus is generally single, the medicine adding port of some infusion apparatuses can only dilute liquid medicine, and the infusion apparatus can not meet the requirements when emergency medicine application is needed by emergency patients. (5) An ordinary infusion apparatus can only be connected with one infusion bottle at a time, and when medical care personnel are busy, the situation that liquid medicine in the infusion bottle of a patient is not replaced by people after being used up easily occurs, so that blood return of the patient is caused to flow reversely.

Therefore, there is a need for an improved anti-reflux pressurized infusion set, which effectively solves the above-mentioned problems through an improved structural design.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide an improved anti-reflux pressurized infusion apparatus.

In order to achieve the above objects and other related objects, the present invention provides a technical solution: an improved anti-reflux pressurized infusion apparatus comprises an infusion apparatus whole body, wherein the infusion apparatus whole body comprises an infusion hose, a bottle stopper puncture needle, a three-way valve and an anti-reflux pressurized mechanism, the bottle stopper puncture needle is communicated with the top of the infusion hose, the three-way valve is communicated with the bottom of the infusion hose, and the anti-reflux pressurized mechanism is arranged at the middle part in the infusion hose; the anti-reflux pressurization type mechanism comprises a pressurization pipe, an upper bayonet ring, an upper sphere, an upper three-lobe orifice, a lower bayonet ring, a lower sphere and a lower three-lobe orifice; the utility model discloses a transfusion device, including infusion hose, top bayonet ring, last three lobes mouth are fixed to be set up in the infusion hose, the top of last bayonet ring is located infusion hose's mid portion, the width of top of the last bayonet ring is greater than infusion hose's width, go up the bayonet ring with go up the fixed setting of three lobes mouth and be close to in the infusion hose the part at top of the pressure tube, lower bayonet ring with lower three lobes mouth is fixed to be set up be close to in the infusion hose the part of pressure tube bottom, it can set up with moving up and down to go up the spheroid go up the bayonet ring with last three lobes mouth mid portion, the spheroid can set up with moving up and down the bayonet ring with lower.

Preferably, the part that the infusion hose top is close to the bottle stopper pjncture needle is provided with first flow regulator and first heparin cap, the infusion hose bottom is close to the part of three-way valve is provided with second flow regulator and second heparin cap, first flow regulator is located bottle stopper pjncture needle below, first heparin cap is located the below of first flow regulator, second flow regulator with second heparin cap all is located the top of three-way valve, simultaneously second flow regulator is located the top of second heparin cap.

Preferably, the quantity of bottle stopper pjncture needle is provided with two, two bottle stopper pjncture needle afterbody all is provided with the intercommunication hose, infusion hose top is provided with the album liquid kettle, two the bottle stopper pjncture needle afterbody sets up the intercommunication hose all with collection liquid kettle intercommunication, the quantity of first flow regulator is two, two first flow regulator sets up respectively two the setting of bottle stopper pjncture needle afterbody on the intercommunication hose.

Preferably, a Murphy dropper filter screen is further arranged on the infusion hose and is positioned below the liquid collecting kettle.

Preferably, go up the bayonet ring with bayonet ring shape all is the ring form down, go up three leaf mouths with three leaf mouths all are the disk form down, and the middle part fretwork is in the fretwork part simultaneously evenly is provided with the thin slice of three petal shapes.

The structural features of the above solution are explained as follows:

the transfusion tube anti-reflux pressurization type structure designed by the scheme is mainly characterized in that venous blood reflux of a transfusion patient can be effectively prevented, air can be prevented from entering the transfusion tube by mistake, and liquid can be prevented from flowing back into a transfusion bottle during pressurization transfusion; the main working principle is as follows: two spheres capable of moving up and down are designed at the upper end and the lower end of the pressure pipe, the specific gravity of the spheres is smaller than that of water, and a bayonet ring and a three-leaf opening are arranged at the upper part and the lower part of the two spheres; in the first case: when the blood returns from the vein end of the patient, the blood flows upwards to enable the lower ball body to be jacked to the lower bayonet ring, so that the passage is blocked to prevent the blood of the patient from further flowing backwards; in the second case: when the infusion bottle is empty of liquid, the liquid column in the infusion hose descends, and when the buoyancy of the upper ball body is larger than the impulsive force caused by the flow rate of the liquid, the upper ball body can prop against the inner ring of the upper bayonet to block the passage, so that air is prevented from entering the infusion tube; in the third case: when the liquid needs to be pressurized and replenished, a nursing worker presses the pressurizing pipe part with one hand, the upper ball body is pressed upwards to block the upper bayonet ring and temporarily block the infusion hose, the lower ball body is pushed downwards to fall on the lower three-lobe orifice, and the liquid in the pressurizing pipe flows down from the gap at the periphery of the lower three-lobe orifice, so that the unidirectional flow direction of the liquid is ensured; in a fourth case: when the infusion tube is normally instilled, the upper sphere and the lower sphere are both dropped on the three-flap openings of the upper sphere and the lower sphere under the action of the flow rate of liquid, so that the whole infusion tube can be ensured to be in a circulation state.

Set up first heparin cap at infusion hose top, add the liquid medicine in addition and can play the mixed effect of diluting of liquid medicine toward first heparin cap, set up second heparin cap simultaneously in infusion hose bottom, add the effect that the liquid medicine can play quick use of medicine in addition toward second heparin cap, be applicable to the patient that needs the first aid, set up two flow regulator in the top of two heparin caps simultaneously, can not influence the process of adding the medicine like this.

Set up two bottle stopper pjncture needles on an transfusion system, two infusion bottles can be connected simultaneously to the infusion hose like this, through adjusting the size of flow regulator on every intercommunication hose, can reach the function that the next infusion bottle continues the infusion after liquid medicine runs out in an infusion bottle, the process that medical personnel traded the infusion bottle has been saved, and is convenient and fast, can also adjust two infusion bottles simultaneously and infuse, increase the flow of infusion hose, the liquid medicine that comes out in two infusion bottles is earlier through the collection liquid kettle of below, then get into the infusion hose from collection liquid kettle is unified.

The filtering net of the Murphy dropper can filter the liquid medicine.

When the upper ball body and the lower ball body rise to the respective bayonet rings, the spherical parts of the upper ball body and the lower ball body can just block the middle parts of the bayonet rings, thereby achieving the effect of preventing liquid in the infusion tube from flowing; when the whole infusion tube is in a normal working state, in order to ensure that the upper sphere and the lower sphere cannot obstruct the liquid circulation in the infusion tube, the upper sphere and the lower sphere can fall down to respective three-petal-shaped openings, the three petal-shaped sheets in the three-petal-shaped openings can well support the spheres and cannot continuously fall down, and meanwhile, the most important thing is that the liquid in the infusion tube can circulate through the hollow parts in the middles of the three petal-shaped sheets.

The utility model has the advantages that: according to the improved anti-reflux pressurized infusion apparatus designed by the scheme, the situation of venous blood reflux of a patient can be prevented by arranging the anti-reflux pressurized mechanism; when air is mistakenly introduced, air embolism is prevented; preventing liquid from flowing back into the infusion bottle during pressurized infusion; the first heparin cap and the second heparin cap which are arranged up and down through the infusion hose have the function of mixing and diluting the liquid medicine and can meet the requirement of rapid medicine application of emergency patients; the two bottle stopper puncture needles are arranged and connected with the two infusion bottles at the same time, so that the process of changing the infusion bottles by medical personnel is omitted, and convenience and rapidness are realized; the whole pressurized infusion apparatus can simultaneously solve a plurality of technical problems, and has high practical value.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the above drawings, the infusion tube 1, the bottle stopper puncture needle 2, the three-way valve 3, the pressurizing tube 4, the upper bayonet ring 5, the upper sphere 6, the upper three-lobe orifice 7, the lower bayonet ring 8, the lower sphere 9, the lower three-lobe orifice 10, the first heparin cap 11, the second heparin cap 12, the first flow regulator 13, the second flow regulator 14, the liquid collecting pot 15 and the filtering screen 16 of the Murphy dropper are shown.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

Example (b): as shown in fig. 1, an improved anti-reflux pressurized infusion apparatus comprises an infusion apparatus body, wherein the infusion apparatus body comprises an infusion hose 1, a bottle stopper puncture needle 2, a three-way valve 3 and an anti-reflux pressurized mechanism, the bottle stopper puncture needle 2 is communicated with the top of the infusion hose 1, the three-way valve 3 is communicated with the bottom of the infusion hose 1, and the anti-reflux pressurized mechanism is arranged in the middle part of the infusion hose 1; the anti-reflux pressurization type mechanism comprises a pressurization pipe 4, an upper bayonet ring 5, an upper sphere 6, an upper three-lobe orifice 7, a lower bayonet ring 8, a lower sphere 9 and a lower three-lobe orifice 10; the pressurizing pipe 4 is positioned in the middle of the transfusion hose 1, the width of the pressurizing pipe 4 is larger than that of the transfusion hose 1, the upper bayonet ring 5 and the upper three-lobe orifice 7 are fixedly arranged in the transfusion hose 1 and close to the top of the pressurizing pipe 4, the lower bayonet ring 8 and the lower three-lobe orifice 10 are fixedly arranged in the transfusion hose 1 and close to the bottom of the pressurizing pipe 4, the upper sphere 6 is vertically movably arranged in the middle of the upper bayonet ring 5 and the upper three-lobe orifice 7, and the lower sphere 9 is vertically movably arranged in the middle of the lower bayonet ring 8 and the lower three-lobe orifice 10; the transfusion tube anti-reflux pressurization type structure designed by the scheme is mainly characterized in that venous blood reflux of a transfusion patient can be effectively prevented, air can be prevented from entering the transfusion tube by mistake, and liquid can be prevented from flowing back into a transfusion bottle during pressurization transfusion; the main working principle is as follows: two spheres capable of moving up and down are designed at the upper end and the lower end of the pressure pipe 4, the specific gravity of the spheres is less than that of water, and a bayonet ring and a three-lobe orifice are arranged at the upper part and the lower part of the two spheres; in the first case: when the blood returns from the vein end of the patient, the blood flows upwards to enable the lower ball body 9 to be jacked to the lower bayonet ring 8, so that the passage is blocked to prevent the blood of the patient from further flowing backwards; in the second case: when the infusion bottle has no liquid, the liquid column in the infusion hose 1 descends, and when the buoyancy of the upper ball body 6 is larger than the impulsive force caused by the flow rate of the liquid, the upper ball body 6 can prop against the inner ring of the upper bayonet to block the passage, so that air is prevented from entering the infusion tube; in the third case: when the liquid needs to be pressurized and replenished, a nursing worker presses the position of the pressurizing pipe 4 with one hand, the upper ball body 6 is pressed upwards to block the upper bayonet ring 5 and temporarily block the infusion hose 1, the lower ball body 9 is pushed downwards to fall on the lower three-lobe orifice 10, and the liquid in the pressurizing pipe 4 flows down from the peripheral gap of the lower three-lobe orifice 10, so that the unidirectional flow direction of the liquid is ensured; in a fourth case: when the infusion tube is normally instilled, the upper sphere 6 and the lower sphere 9 both fall on the three-lobe openings of the upper sphere and the lower sphere under the action of the flow rate of liquid, so that the whole infusion tube can be ensured to be in a circulation state.

The preferred embodiment is as follows:

a first flow regulator 13 and a first heparin cap 11 are arranged at the part of the top of the transfusion hose 1 close to the bottle stopper puncture needle 2, a second flow regulator and a second heparin cap 12 are arranged at the part of the bottom of the transfusion hose 1 close to the three-way valve 3, the first flow regulator 13 is positioned below the bottle stopper puncture needle 2, the first heparin cap 11 is positioned below the first flow regulator 13, the second flow regulator 14 and the second heparin cap 12 are both positioned above the three-way valve 3, and the second flow regulator 14 is positioned above the second heparin cap 12; set up first heparin cap 11 at infusion hose 1 top, add the liquid medicine in addition and can play the mixed effect of diluting of liquid medicine toward first heparin cap 11, set up second heparin cap 12 in infusion hose 1 bottom simultaneously, add the effect that the liquid medicine can play quick use of medicine in addition toward second heparin cap 12, be applicable to the patient that needs the first aid, set up two flow regulator in the top of two heparin caps simultaneously, can not influence the process of adding the medicine like this

The number of the bottle stopper puncture needles 2 is two, the tail parts of the two bottle stopper puncture needles 2 are provided with communicating hoses, the top of the infusion hose 1 is provided with a liquid collection pot 15, the communicating hoses arranged at the tail parts of the two bottle stopper puncture needles 2 are communicated with the liquid collection pot 15, the number of the first flow regulators 13 is two, and the two first flow regulators 13 are respectively arranged on the communicating hoses arranged at the tail parts of the two bottle stopper puncture needles 2; set up two bottle stopper pjncture needles 2 on an transfusion system, two infusion bottles can be connected simultaneously to infusion hose 1 like this, through adjusting the size of flow regulator on every intercommunication hose, can reach the function that the next infusion bottle continues the infusion after liquid medicine runs out in an infusion bottle, the process that medical personnel traded the infusion bottle has been saved, and is convenient and fast, can also adjust two infusion bottles simultaneously and infuse, increase infusion hose 1's flow, the liquid medicine that comes out in two infusion bottles is earlier through liquid collection kettle 15 of below, then in following liquid collection kettle 15 unifies the entering infusion hose 1.

A Murphy dropper filter screen 16 is also arranged on the transfusion hose 1, and the Murphy dropper filter screen 16 is positioned below the liquid collecting kettle 15; the filtering screen 16 of the Murphy dropper can filter the liquid medicine.

The upper bayonet ring 5 and the lower bayonet ring 8 are both annular, the upper three-lobe orifice 7 and the lower three-lobe orifice 10 are both disc-shaped, the middle part is hollowed, and three petal-shaped sheets are uniformly arranged at the hollowed part; when the upper sphere 6 and the lower sphere 9 rise to the respective bayonet rings, the spherical parts of the upper sphere and the lower sphere can just block the middle parts of the bayonet rings, thereby achieving the effect of preventing the liquid in the infusion tube from flowing; when the whole infusion tube is in a normal working state, in order to ensure that the upper sphere 6 and the lower sphere 9 do not obstruct the liquid circulation in the infusion tube, the upper sphere 6 and the lower sphere 9 can fall down to respective three-petal-shaped openings, the three petal-shaped sheets in the three-petal-shaped openings can well support the spheres and do not continuously fall down, and meanwhile, the most important thing is that the liquid in the infusion tube can circulate through the hollow parts in the middles of the three petal-shaped sheets.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (5)

1. The utility model provides an improvement type is prevented pressurization formula transfusion system against current which characterized in that: the infusion set comprises an infusion set body, wherein the infusion set body comprises an infusion hose, a bottle stopper puncture needle, a three-way valve and an anti-reflux pressurization type mechanism, the bottle stopper puncture needle is communicated with the top of the infusion hose, the three-way valve is communicated with the bottom of the infusion hose, and the anti-reflux pressurization type mechanism is arranged in the middle of the infusion hose; the anti-reflux pressurization type mechanism comprises a pressurization pipe, an upper bayonet ring, an upper sphere, an upper three-lobe orifice, a lower bayonet ring, a lower sphere and a lower three-lobe orifice; the utility model discloses a transfusion device, including infusion hose, top bayonet ring, last three lobes mouth are fixed to be set up in the infusion hose, the top of last bayonet ring is located infusion hose's mid portion, the width of top of the last bayonet ring is greater than infusion hose's width, go up the bayonet ring with go up the fixed setting of three lobes mouth and be close to in the infusion hose the part at top of the pressure tube, lower bayonet ring with lower three lobes mouth is fixed to be set up be close to in the infusion hose the part of pressure tube bottom, it can set up with moving up and down to go up the spheroid go up the bayonet ring with last three lobes mouth mid portion, the spheroid can set up with moving up and down the bayonet ring with lower.

2. The improved anti-reflux pressurized infusion set according to claim 1, wherein: the infusion hose top is close to the part of bottle stopper pjncture needle is provided with first flow regulator and first heparin cap, the infusion hose bottom is close to the part of three-way valve is provided with second flow regulator and second heparin cap, first flow regulator is located bottle stopper pjncture needle below, first heparin cap is located the below of first flow regulator, the second flow regulator with second heparin cap all is located the top of three-way valve, simultaneously the second flow regulator is located the top of second heparin cap.

3. The improved anti-reflux pressurized infusion set according to claim 2, wherein: the quantity of bottle stopper pjncture needle is provided with two, two bottle stopper pjncture needle afterbody all is provided with the intercommunication hose, infusion hose top is provided with the album of liquid kettle, two bottle stopper pjncture needle afterbody sets up the intercommunication hose all with collection liquid kettle intercommunication, the quantity of first flow regulator is two, two first flow regulator sets up respectively two bottle stopper pjncture needle afterbody sets up on the intercommunication hose.

4. The improved anti-reflux pressurized infusion set according to claim 3, wherein: the infusion hose is also provided with a Murphy dropper filter screen which is positioned below the liquid collecting kettle.

5. The improved anti-reflux pressurized infusion set according to claim 1, wherein: go up the bayonet ring with bayonet ring shape all is the ring form down, go up three leaf valve mouths with three leaf valve mouths all are the disk form down, and the middle part fretwork is in the fretwork part evenly is provided with the thin slice of three petal shapes simultaneously.

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