CN212038461U - Self-stopping air-proof blood return-proof infusion apparatus - Google Patents

Abstract

The utility model belongs to the technical field of medical assistance, in particular to an automatic-stop air-proof blood return-proof infusion apparatus, which comprises a Murphy's dropper and a blood return-proof device, wherein the upper end of the Murphy's dropper is fixedly connected with an upper conduit, the upper end of the upper conduit is fixedly connected with a liquid inlet pipeline, the lower end of the Murphy's dropper is fixedly connected with a lower conduit, and the bottom end inside the Murphy's dropper is provided with a TPE sphere; the utility model discloses, can be according to the spheroidal diameter size of TPE spheroid with the TPE spheroid through setting up the TPE spheroid, the lower extreme drain pipe is plugged up to the automatic whereabouts of TPE spheroid in the murphy's formula drip that finishes when liquid infusion, prevent that the air from getting into out the transfusion tube, set up and prevent returning blood device at last casing, form inclosed cavity under the effect of lower casing and sealing washer, hydrophilic flap is closed according to blood pressure when pricking the needle to the patient, reach the effect that prevents the blood backward flow, the whole result of use that makes through mutually supporting between each structure is better.

Description

Self-stopping air-proof blood return-proof infusion apparatus

Technical Field

The utility model belongs to the technical field of the medical treatment is supplementary, concretely relates to self-stop type prevents air and prevents blood return transfusion system.

Background

In clinical work, the ordinary transfusion system that patient's venous transfusion mostly took, often have that liquid infusion finishes or only transfuse partial liquid and just appear the phenomenon that the infusion pipe got into the air, and then a large amount of blood return phenomena of puncture department infusion syringe needle appear, the serious person of air admission blood circulation can arouse the air embolism, the blood return time in the transfer line has long can solidify, block up the syringe needle, nursing staff's work load and patient's unsafe factor have been increased, prevent during the air admission blood, consequently, improve current transfusion system.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a self-stop air-proof blood return-proof infusion apparatus, which is characterized by preventing air from entering and blood from returning.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an air-proof blood return prevention transfusion system of automatic stop formula, includes murphy's formula burette and prevents the blood return device, the upper end fixedly connected with upper hose of murphy's formula burette, the upper end fixedly connected with inlet channel of upper hose, the lower extreme fixedly connected with downcomer of murphy's formula burette, the inside bottom of murphy's formula burette is provided with the TPE spheroid.

Preferably, the blood return prevention device comprises an upper shell, a lower shell, a hydrophilic valve and a sealing ring, wherein the lower shell is connected with the inner joint of the upper shell, the sealing ring is arranged between the upper shell and the lower shell, and the hydrophilic valve is arranged in the lower shell.

Preferably, the side surface of the upper guide pipe is fixedly connected with an exhaust pipe, and the surface of the exhaust pipe is sleeved with a rubber plug.

Preferably, the surfaces of the upper shell and the lower shell are both fixedly connected with a liquid outlet pipeline, and the upper shell is fixedly connected with the lower guide pipe through the liquid outlet pipeline.

Preferably, the number of hydrophilic valves is two, the shape of murphy's style burette bottom is for leaking hopper-shaped, the spheroid diameter of TPE is less than the diameter of murphy's style burette, and the spheroid diameter of TPE is greater than the diameter of downcomer.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model can avoid air leakage and blood return of the needle head at the puncture position of the transfusion tube caused by the completion of transfusion by arranging the self-stop air-proof and blood return-proof transfusion device, greatly reduces the workload of clinical nursing personnel and the stress and anxiety of patients, can overlap the TPE ball with the inner wall of the Murphy dropper according to the diameter of the TPE ball, when the infusion of the liquid is finished, the TPE ball body in the Murphy dropper automatically falls to block the liquid outlet pipeline at the lower end to prevent air from entering the liquid outlet pipe, the blood return prevention device is arranged to form a closed cavity under the action of the upper shell, the lower shell and the sealing ring, when the patient is pricked, the pressure in the blood can drive the liquid medicine in the liquid outlet pipeline to move upwards, and then the hydrophilic valve is closed, reaches the effect that prevents the blood backward flow, sets up revealing of kneck liquid medicine when the sealing washer can prevent to use, and the whole result of use that makes through the mutually supporting between each structure is better.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of the front view cross-sectional structure of the present invention;

FIG. 3 is a schematic view of a three-dimensional enlarged cross-sectional structure of the blood return prevention device of the present invention;

fig. 4 is a schematic top view of the blood return prevention device of the present invention;

in the figure: 1. a Murphy dropper; 2. an upper duct; 3. a liquid inlet pipeline; 4. an exhaust pipe; 5. a rubber stopper; 6. a liquid outlet pipeline; 7. a lower conduit; 8. TPE spheres; 9. a blood return prevention device; 91. an upper housing; 92. a lower housing; 93. a hydrophilic flap; 94. and (5) sealing rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides an automatic stop formula prevents air and prevents blood return transfusion system, includes murphy's formula burette 1 and prevents blood return device 9, the upper end fixedly connected with upper hose 2 of murphy's formula burette 1, upper hose 2's upper end fixedly connected with feed liquor pipeline 3, murphy's formula burette 1's lower extreme fixedly connected with downcomer 7, the inside bottom of murphy's formula burette 1 is provided with TPE spheroid 8, sets up TPE spheroid 8 and can be according to TPE spheroid 8's diameter size with TPE spheroid 8, with TPE spheroid 8 and 1 inner wall overlap joint of murphy's formula burette, finishes the automatic whereabouts of TPE spheroid 8 and plugs up lower extreme drain pipe 6 in the murphy's formula burette 1 when liquid infusion, prevents that the air from.

Specifically, blood return prevention device 9 includes casing 91, casing 92, hydrophilic flap 93 and sealing washer 94 down, go up casing 91 internal clamping and have connect casing 92 down, go up and be provided with sealing washer 94 between casing 91 and the casing 92 down, set up the revealing of kneck liquid medicine when sealing washer 94 can prevent to use, be provided with hydrophilic flap 93 down in the casing 92, set up and prevent blood return prevention device 9 and form inclosed cavity under last casing 91, casing 92 and sealing washer 94's effect, pressure in the blood will drive liquid medicine upward movement in the outlet duct 6 when pricking the needle to the patient, and then hydrophilic flap 93 closes, reaches the effect that prevents the blood backward flow.

Specifically, the side fixedly connected with blast pipe 4 of upper catheter 2, rubber plug 5 has been cup jointed on the surface of blast pipe 4, sets up rubber plug 5 and blast pipe 4 and can discharge inside gas when using murphy's formula burette 1, and rubber plug 5 also can prevent that the air from getting into murphy's formula burette 1 simultaneously.

Specifically, the surfaces of the upper shell 91 and the lower shell 92 are both fixedly connected with a liquid outlet pipeline 6, and the upper shell 91 is fixedly connected with the lower conduit 7 through the liquid outlet pipeline 6.

Specifically, the number of the hydrophilic valves 93 is two, the bottom end of the murphy dropper 1 is funnel-shaped, the diameter of the TPE sphere 8 is smaller than that of the murphy dropper 1, and the diameter of the TPE sphere 8 is larger than that of the lower catheter 7.

The utility model discloses a theory of operation and use flow: the utility model discloses, before using, check the transfusion system package earlier and be equipped with not damaged, if the package is equipped with and damages medical staff and do not use this transfusion system, during the use, open single wrapping bag and take out the transfusion system and close the dropping speed regulator, pull out bottle plug puncture ware protective sheath again, insert the bottle plug puncture ware in infusion bottle or the infusion bag, open air inlet cap and stagnant water clamp simultaneously, repeatedly extrude murphy's dropper 1 to when liquid medicine is full of murphy's dropper 1 half, TPE 8 in murphy's dropper 1 pipe floats, open the flow regulator of transfer line bottom, make murphy's dropper 1 lower extreme to the whole liquid infusion needle fill with liquid, close the regulator, carry out venipuncture again, after the venipuncture succeeds, the flow size of transfusion system is controlled by the flow regulator, then utilize the infusion system that atmospheric pressure and hydrostatic pressure's principle formed, interior pressure is higher than the principle of human intravenous pressure, meanwhile, the pressure in the blood can drive the liquid medicine in the liquid outlet pipeline 6 to move upwards, so that the hydrophilic valve 93 is closed, after the puncture is finished, the flow regulator is opened to directly input the liquid into the vein to finish transfusion, and when the weight of the liquid is less than or equal to the weight of the liquid above the liquid medicine filter, the liquid is automatically closed, so that the hydrophilic valve 93 in the blood returning device is prevented from being closed, and the blood returning of the vein at the puncture point is prevented.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides an air return prevention transfusion system is prevented to automatic stop formula, includes murphy's formula burette (1) and prevents blood return device (9), its characterized in that: the utility model discloses a traditional liquid medicine infusion device, including murphy's formula burette (1), the upper end fixedly connected with upper catheter (2) of murphy's formula burette (1), the upper end fixedly connected with inlet channel (3) of upper catheter (2), the lower extreme fixedly connected with downcomer (7) of murphy's formula burette (1), the inside bottom of murphy's formula burette (1) is provided with TPE spheroid (8).

2. The self-stop air-proof and blood-return-proof infusion set according to claim 1, characterized in that: prevent back blood device (9) including last casing (91), casing (92), hydrophilic flap (93) and sealing washer (94) down, go up casing (91) internal clamping and have connect down casing (92), be provided with sealing washer (94) between last casing (91) and casing (92) down, be provided with hydrophilic flap (93) down in casing (92).

3. The self-stop air-proof and blood-return-proof infusion set according to claim 1, characterized in that: the side face of the upper guide pipe (2) is fixedly connected with an exhaust pipe (4), and the surface of the exhaust pipe (4) is sleeved with a rubber plug (5).

4. The automatic stop type air-proof and blood-return-proof infusion set according to claim 2, characterized in that: the surface of the upper shell (91) and the surface of the lower shell (92) are fixedly connected with liquid outlet pipelines (6), and the upper shell (91) is fixedly connected with the lower guide pipe (7) through the liquid outlet pipelines (6).

5. The automatic stop type air-proof and blood-return-proof infusion set according to claim 2, characterized in that: the number of hydrophilic flap (93) is two, the shape of murphy's formula burette (1) bottom is for leaking hopper-shaped, the diameter of TPE spheroid (8) is less than the diameter of murphy's formula burette (1), and the diameter of TPE spheroid (8) is greater than the diameter of downcomer (7).

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