CN210904388U

CN210904388U - Anti-backflow infusion apparatus

Info

Publication number: CN210904388U
Application number: CN201921281016.9U
Authority: CN
Inventors: 朱洪银; 杨盼
Original assignee: Shanxi Medical University
Current assignee: Shanxi Medical University
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-07-03
Anticipated expiration: 2029-08-08

Abstract

The utility model belongs to the technical field of medical instrument, concretely relates to anti-return transfusion system. Including the transfer line, be provided with between puncture ware and the dropping liquid pipe on the transfer line and prevent the device against the current, prevent the device against the current including preventing against the current burette and setting up the interlayer in preventing the counter current burette, be provided with the through-hole in the middle of the interlayer, and will prevent that the inside two-layer of intercommunication about falling into of counter current burette, be provided with the floating plug in preventing the counter current burette, the floating plug is connected with the stopper through the connecting rod downwards, the floating plug, the stopper is located respectively prevents the upper and lower two-layer of counter current burette, the lower extreme of stopper is provided with the spacing frame of cross, the spacing frame of cross slides and sets up in preventing the outlet pipe way against the current burette, after the liquid medicine is transfused up. The utility model discloses a floating plug accomplishes the self-sealing of liquid medicine infusion pipe after the liquid medicine has been infused in the cooperation of interlayer, has avoided the emergence of blood return phenomenon.

Description

Anti-backflow infusion apparatus

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to anti-return transfusion system.

Background

The transfusion device is widely applied to the slow transfusion treatment or operation process of a patient, and the conventional common transfusion device always has the condition of blood backflow due to the fact that a transfusion bottle is not replaced or a needle is not pulled out in time after liquid is conveyed, namely the blood backflow phenomenon affects the body health of people. Therefore, by adopting the infusion tube, the medical staff must observe the infusion state at any time, and the labor intensity of the medical staff is increased virtually.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to above-mentioned problem an anti-return transfusion system

In order to achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides an anti-reflux infusion apparatus, including the transfer line be provided with between puncture ware on the transfer line and the dropping liquid pipe and prevent the device against the current, prevent the device against the current including preventing against the current burette and setting up the interlayer in preventing against the current burette, be provided with the through-hole in the middle of the interlayer to will prevent that the inside two-layer that communicates about falling into of countercurrent burette, be provided with the floating plug in preventing against the current burette, the floating plug is connected with the stopper downwards through the connecting rod, floating plug, stopper are located the upper and lower two-layer of preventing against the current burette respectively, the lower extreme of stopper is provided with the spacing frame of cross, the spacing frame of cross slides and sets up in preventing against the current burette's outlet pipeline, after the liquid medicine is lost, floating plug, stopper will respectively the export of through-hole the.

Further, the floating plug is a spherical hollow floating plug.

Still further, the upper surface of the interlayer is arranged to be conical corresponding to the floating plug.

Furthermore, the upper surface of the limiting block is provided with a support corresponding to the through hole.

Furthermore, the limiting block is conical.

Furthermore, the anti-reflux dropper is connected with the dropping liquid pipe through a U-shaped pipe.

Furthermore, the anti-reflux dropper is provided with an air vent, and a blocking cap is movably arranged on the air vent.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model can automatically seal the transfusion tube after the liquid medicine is transfused through the matching of the floating plug and the interlayer, so that the negative pressure is kept in the transfusion tube, the residual liquid medicine in the transfusion tube can not fall, the blood return phenomenon is avoided, the labor intensity of medical personnel is reduced, and the position of the floating plug falling can be ensured to be more accurate by limiting the floating plug through the limiting block, the connecting rod and the cross limiting frame;

2. compared with the common conical or rectangular floating plug, the floating plug of the utility model is a spherical hollow floating plug, which has better buoyancy and avoids the phenomenon of incapability of floating; the upper surface of the interlayer is provided with a taper, so that the interlayer can be better matched with the spherical hollow floating plug to complete sealing; the upright column arranged on the upper surface of the limiting block can ensure that the limiting block can limit the floating plug and simultaneously can not block the through hole in the middle of the interlayer, so that the phenomenon that the liquid medicine can not flow downwards is avoided; the length of the connecting rod meets the requirement of a through hole on the floating plug sealing interlayer, and the limiting block can also be used as an outlet for blocking the sealing anti-reflux dropper, so that double sealing of the floating plug and the limiting block can be formed, and the anti-reflux performance of the anti-reflux device is ensured; the anti-reflux dropper is connected with the dropping liquid pipe through the U-shaped pipe, and the liquid medicine reserved in the U-shaped pipe can more effectively ensure the sealing property in the infusion pipe; the backflow prevention device is arranged in front of the dropping liquid pipe, so that the time of the blood return phenomenon is prolonged by using the liquid medicine existing in the dropping liquid pipe under the condition that the backflow prevention device cannot ensure absolute sealing; the vent hole arranged on the anti-reflux dropper can ensure that the anti-reflux dropper is communicated with the atmosphere to reduce the air pressure under the condition that liquid medicine cannot enter the anti-reflux dropper due to overlarge air pressure in the anti-reflux dropper; the blocking cap on the vent hole can ensure the sealing performance of the anti-reflux dropper in a normal state.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the backflow prevention device of the present invention;

the puncture outfit comprises a puncture outfit-1, a dropping liquid pipe-2, an anti-reflux device-3, an anti-reflux dropper-301, a floating plug-302, an interlayer-303, a connecting rod-304, a limiting block-305, a support column-306, a vent hole-307, a blocking cap-308 and a cross limiting frame-309.

Detailed Description

In order to further illustrate the technical solution of the present invention, the present invention is further explained by the following embodiments.

As shown in fig. 1 and 2, the backflow prevention infusion apparatus comprises an infusion tube, wherein a backflow prevention device 3 is arranged between a puncture outfit 1 and a drip tube 2 on the infusion tube, the backflow prevention device 3 comprises a backflow prevention dropper 301 and an interlayer 303 arranged in the backflow prevention dropper 301, and the upper surface of the interlayer 303 is conical. Be provided with the through-hole in the middle of the interlayer 303 to it is two-layer that intercommunication about will preventing that countercurrent burette 301 is inside to fall into, be provided with floating plug 302 in the anti-countercurrent burette 301, floating plug 302 is spherical cavity floating plug, floating plug 302 is connected with stopper 305 through connecting rod 304 downwards, stopper 305 is the toper, floating plug 302, stopper 305 are located the upper and lower two-layer of preventing countercurrent burette 301 respectively, the upper surface of stopper 305 corresponds the through-hole is provided with pillar 306 to prevent to block up the through-hole because of stopper 305 floats along with floating plug 302, the lower extreme of stopper 305 is provided with cross spacing 309, cross spacing 309 slides and sets up in preventing countercurrent burette 301's 301 outlet pipe, after the liquid medicine is lost, floating plug 302, stopper 305 will respectively the export of through-hole, prevent countercurrent burette 301's export jam. The anti-reflux dropper 301 is provided with a vent hole 307, the vent hole 307 is movably provided with a blocking cap 308, the inlet and the outlet of the anti-reflux dropper 301 are respectively communicated with the puncture outfit 1 and the dropping liquid pipe 2 through pipelines, and the anti-reflux dropper 301 is connected with the dropping liquid pipe 2 through a U-shaped pipe.

The essential features and advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a backflow prevention transfusion system, includes the transfer line, its characterized in that: be provided with between puncture ware (1) and the dropping liquid pipe (2) on the transfer line and prevent against current device (3), prevent against current device (3) including preventing against current burette (301) and setting up interlayer (303) in preventing against current burette (301), be provided with the through-hole in the middle of interlayer (303) to will prevent that the inside two-layer that falls into upper and lower intercommunication of preventing against current burette (301), be provided with floating plug (302) in preventing against current burette (301), floating plug (302) are connected with stopper (305) through connecting rod (304) downwards, floating plug (302), stopper (305) are located upper and lower two-layer of preventing against current burette (301) respectively, the lower extreme of stopper (305) is provided with cross spacing (309), cross spacing (309) slide and set up in preventing against current burette (301)'s outlet pipeline, when the liquid medicine infusion finishes, the floating plug (302) and the limiting block (305) respectively plug the outlet of the through hole and the outlet of the backflow prevention dropper (301).

2. The anti-backflow infusion set according to claim 1, wherein: the floating plug (302) is a spherical hollow floating plug.

3. The anti-backflow infusion set according to claim 2, wherein: the upper surface of the interlayer (303) is arranged to be conical corresponding to the floating plug (302).

4. The anti-backflow infusion set according to claim 1, wherein: the upper surface of the limiting block (305) is provided with a support column (306) corresponding to the through hole.

5. The anti-backflow infusion set according to claim 1, wherein: the limiting block (305) is conical.

6. The anti-backflow infusion set according to claim 1, wherein: the anti-reflux dropper (301) is connected with the dropping liquid pipe (2) through a U-shaped pipe.

7. The anti-backflow infusion set according to claim 1, wherein: the backflow prevention dropper (301) is provided with a vent hole (307), and a blocking cap (308) is movably arranged on the vent hole (307).