CN209916852U

CN209916852U - Hemodialysis pipeline capable of achieving closed blood return

Info

Publication number: CN209916852U
Application number: CN201920391701.0U
Authority: CN
Inventors: 顾蔷怡
Original assignee: Jiangsu Provincial Hospital of Chinese Medicine
Current assignee: Jiangsu Provincial Hospital of Chinese Medicine
Priority date: 2019-03-26
Filing date: 2019-03-26
Publication date: 2020-01-10
Anticipated expiration: 2029-03-26

Abstract

The utility model provides a hemodialysis pipeline capable of returning blood in a closed manner, which comprises an artery puncture needle, wherein the artery puncture needle comprises a needle head, a main pipe and a blood return pipe. The needle head is fixedly connected with one end of the main pipe in a communicating mode, the lower end of the blood return pipe is fixedly connected with the side edge of the main pipe in a communicating mode, the main pipe is provided with a main pipe clamp, the main pipe clamp can be opened and closed and can be installed on the main pipe in a sliding mode, the main pipe clamp is located between the needle head and the blood return pipe, the blood return pipe is provided with a blood return pipe clamp, and the blood return pipe clamp can be opened and closed and can be installed on the blood return. The utility model discloses a return blood vessel is direct to be connected with the artery pjncture needle, has shortened the distance between the syringe needle of connecting point and artery pjncture needle greatly, and the blood return only needs a second for the speed of gravity blood return has reduced the water supply volume, and the blood return is more thorough.

Description

Hemodialysis pipeline capable of achieving closed blood return

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a hemodialysis pipeline that can closed return blood.

Background

Before hemodialysis, a pipeline of extracorporeal circulation needs to be pre-filled with normal saline to guide blood to start treatment, and after the dialysis target is finished, the blood in the pipeline needs to be infused back to a patient to finish treatment. In 2010, the Ministry of health of China promulgates 'hemodialysis standard operating regulations' to recommend closed blood back-transfusion before dialysis is finished. However, in clinical work, it is found that in hemodialysis pipelines produced by different manufacturers at present, liquid feeding ports for pre-flushing and back-transfusing blood are located near the starting end of a blood pump, a long distance is reserved between the liquid feeding ports and a needle head of an arterial puncture needle, and medical workers need to lift a catheter near the blood pump for a long time when performing gravity blood return, which is very tired. Chinese patent CN203842088U discloses a closed blood return hemodialysis pipeline, this patent makes artery end blood way pipe into the Y type, will be used for connecting the return blood pipe and artery end blood way union coupling of physiological saline bottle, this design has shortened the distance between the syringe needle of connecting point and artery pjncture needle, has shortened the time of returning blood, however, because the length of artery end blood way pipe is great, the distance between the syringe needle of connecting point and artery pjncture needle is still short enough, the time of returning blood still needs one minute or so, the water supply volume is too many, it is thorough inadequately to return blood.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the utility model provides a but hemodialysis pipeline of closed return blood, the purpose is solved the connecting point of return blood pipe and artery end blood way pipe and the distance between the syringe needle of artery pjncture needle too long, the too slow problem of return blood.

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

the utility model provides a but hemodialysis pipeline of closed blood return, including the artery pjncture needle, the artery pjncture needle includes the syringe needle, is responsible for and returns the blood vessel, the syringe needle with the one end of being responsible for is fixed connection with ground, the lower extreme of blood return pipe with the side of being responsible for is fixed connection with ground, it has main pipe clamp to be responsible for, but be responsible for press from both sides switching and slidable install in be responsible for on, just be responsible for the clamp be located the syringe needle with between the blood return pipe, blood return pipe has the blood return pipe clamp, but blood return pipe clamp switching and slidable install in on the blood return pipe.

Preferably, the blood return tube clamp is arranged at one end of the blood return tube close to the main tube.

Preferably, the hemodialysis pipeline that can blood is returned to closed of the utility model also includes the normal saline bottle, the normal saline bottle with return vascular upper end detachably and connect.

Preferably, the utility model discloses a hemodialysis pipeline that can blood is returned to closed still includes blood pump, arteria pot, cerini dialyser cerini, venous pot, vein pjncture needle and many pipes, many pipes will respectively in proper order be responsible for the blood pump the arteria pot the cerini dialyser cerini the venous pot with the series connection of vein pjncture needle intercommunication ground.

Compared with the prior art, the utility model discloses a return blood vessel is direct to be connected with the artery pjncture needle, and not with artery end blood way union coupling, has shortened the distance between the syringe needle of connecting point and artery pjncture needle greatly, and the volume between the syringe needle of connecting point and artery pjncture needle is about two milliliters, and the blood that returns only needs a second for the speed of gravity blood return, and medical personnel only need lift the pipe very short time, have alleviateed medical personnel's burden, have reduced the water supply volume, and the blood that returns is more thorough.

Drawings

Fig. 1 is an overall schematic view of a hemodialysis tube with a sealed blood return according to an embodiment of the present invention;

in the figure: 1-an arterial puncture needle; 11-a needle head; 12-a main tube; 121-main pipe clamp; 13-recurrent blood vessels; 131-swivel pipe clamp; 2-a physiological saline bottle; 3-blood pump; 4-the arteria pot; 5-a dialyzer; 6-venous pot; 7-vein puncture needle; 8-a catheter.

Detailed Description

In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.

Referring to fig. 1, fig. 1 is a schematic overall view of a hemodialysis tube with closed blood return according to an embodiment of the present invention. The utility model relates to a hemodialysis pipeline capable of returning blood in a closed manner, which comprises an artery puncture needle 1, wherein the artery puncture needle 1 comprises a needle head 11, a main pipe 12 and a blood return pipe 13.

The needle 11 is fixedly connected with one end of the main tube 12 in a communicating manner, the lower end of the blood return tube 13 is fixedly connected with the side edge of the main tube 12 in a communicating manner, the main tube 12 is provided with a main tube clamp 121, the main tube clamp 121 can be installed on the main tube 12 in an opening and closing manner and in a sliding manner, the main tube clamp 121 is positioned between the needle 11 and the blood return tube 13, the blood return tube 13 is provided with a blood return tube clamp 131, and the blood return tube clamp 131 can be installed on the blood return tube 13 in an opening and closing manner.

Preferably, the hemodialysis pipeline of the closed blood return of the utility model also comprises a physiological saline bottle 2, the physiological saline bottle 2 is detachably connected with the upper end of the blood return pipe 13, and enough physiological saline is filled in the physiological saline bottle 2.

Preferably, the utility model discloses a but hemodialysis pipeline of closed blood return still includes blood pump 3, arteria pot 4, cerini dialyser cerini 5, venous pot 6, vein pjncture needle 7 and many pipes 8, and many pipes 8 will be responsible for 12, blood pump 3, arteria pot 4, cerini dialyser cerini 5, venous pot 6 and the serially connected of vein pjncture needle 7 intercommunication respectively in proper order.

The specific blood returning method comprises the following steps: after hemodialysis is completed, the blood pump 3 is shut down, the main tube clamp 121 is kept in an open state, and the blood return tube clamp 131 is opened, so that the physiological saline in the physiological saline bottle 2 enters the main tube 12 from the blood return tube 13; then, gravity blood returning is carried out, the catheter 8 between the blood pump 3 and the arterial puncture needle 1 is lifted as high as possible, the blood before the main tube clamp 121 flows back into the blood vessel of the patient from the needle head 11 of the arterial puncture needle 1 by means of gravity, the connecting point of the blood returning tube 13 and the main tube 12 is close to the needle head 11 of the arterial puncture needle 1, and the volume between the connecting point and the needle head 11 of the arterial puncture needle 1 is only two milliliters, so that the blood returning process only needs about one second, the gravity blood returning time is shortened, the burden of medical staff is relieved, the required physiological saline quantity is reduced, and the blood returning is more thorough; after the blood before the main tube clamp 121 completely flows back, the main tube clamp 121 is closed, the blood return tube clamp 131 is kept in an open state, the blood pump 3 is restarted, and at the moment, the residual blood in the pipeline sequentially flows through the blood pump 3, the arterial pot 4, the dialyzer 5 and the venous pot 6 and finally flows into the blood vessel of the patient from the venous puncture needle 7, so that the reverse blood return is completed. Preferably, the blood return tube clamp 131 is disposed at one end of the blood return tube 13 close to the main tube 12, so that the blood is prevented from entering the blood return tube 13 during gravity blood return, and if any blood enters the blood return tube 13, the blood in the blood return tube 13 is finally returned to the blood vessel of the patient in the process of reverse blood return, so that the blood return time is increased.

Compared with the prior art, the utility model discloses a return blood vessel is direct to be connected with the artery pjncture needle, and not with artery end blood way union coupling, has shortened the distance between the syringe needle of connecting point and artery pjncture needle greatly, and the volume between the syringe needle of connecting point and artery pjncture needle is about two milliliters, and the blood return only needs a second, has accelerated the blood return speed, and medical personnel only need lift the pipe very short time, have alleviateed medical personnel's burden, has reduced the water supply volume, and the blood return is more thorough.

The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.

Claims

1. The utility model provides a hemodialysis pipeline of closed blood return, its characterized in that includes the artery pjncture needle, the artery pjncture needle includes the syringe needle, is responsible for and returns the blood vessel, the syringe needle with the one end fixed connection of being responsible for is communicateed, return blood vessel's lower extreme with the side of being responsible for is communicateed ground fixed connection, it has main pipe clamp to be responsible for, be responsible for press from both sides openable and slidable install in be responsible for on, just be responsible for press from both sides and be located the syringe needle with between the blood return vessel, it has the blood return clamp to return the blood vessel, but return blood clamp openable and slidable install in on the blood return vessel.

2. The sealable hemodialysis line of claim 1, wherein the blood return tube clamp is disposed at an end of the blood return tube near the main tube.

3. The sealable hemodialysis line of claim 1, further comprising a saline bottle removably connected to the upper end of the blood return tube.

4. The hemodialysis line of claim 3, further comprising a blood pump, an arterial pot, a dialyzer, a venous pot, a venous puncture needle, and a plurality of conduits, wherein the plurality of conduits respectively connect the main tube, the blood pump, the arterial pot, the dialyzer, the venous pot, and the venous puncture needle in series and in communication.