A hemodialysis extracorporeal circulation circuit with a Y-shaped side branch infusion port

Abstract

The utility model discloses a hemodialysis extracorporeal circulation pipeline with a Y-shaped side branch infusion port, which relates to the field of medical equipment and includes a dialyzer. An arterial pipeline is arranged on the top of the dialyzer. The arterial pipeline is provided with an arterial pot, a hemodialysis machine blood pump, a Y-shaped infusion side branch, an arterial sampling joint, a first arterial stop clamp and an arterial connecting joint from right to left. The arterial connecting joint needs to be removed when the arterial pipeline is connected to an arterial puncture needle. A venous pipeline is arranged at the bottom of the dialyzer. The utility model performs hemodialysis extracorporeal circulation by arranging a dialyzer, utilizing an extracorporeal circulation pipeline and an arteriovenous puncture needle, and by arranging a Y-shaped infusion side branch, a convenient and standardized operating tool is provided for patients who are not suitable or difficult to rely on natural gravity to close and infuse blood in the arterial pipeline during the blood return operation at the end of hemodialysis treatment.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a hemodialysis extracorporeal circulation pipeline with a Y-shaped side branch infusion port. Background Art

[0002] The hemodialysis extracorporeal circulation circuit is a connecting circuit used for extracorporeal dialysis of the human body. Its main function is to connect the human body with the dialyzer, transport the blood in the human body to the dialyzer for purification, and guide it back to the human body to form a circulation. It plays a role in replacing blood vessels and acting as a blood flow circuit. The hemodialysis extracorporeal circulation circuit consists of two groups of pipes, the arterial tube and the venous tube, which are connected to the dialyzer respectively and connected to the human artery and vein respectively. However, when the existing hemodialysis extracorporeal circulation circuit is used for blood return at the end of dialysis treatment, patients with excessive internal fistula pressure are prone to blood backflow to the infusion device, and blood cannot be returned by natural gravity, which makes the hemodialysis extracorporeal circulation circuit limited in use.

[0003] For example, Chinese patent CN107715205A discloses a hemodialysis extracorporeal circulation piping system, including an arterial line, a venous pot, a first venous tube, a second venous tube, a hemodialyzer, a bypass tube and a tube clamp, etc. By observing the actual situation of the blood purification process, it is selected whether to replace the hemodialyzer or the venous pot, thereby improving the flexibility and convenience of use. However, when the above-mentioned hemodialysis extracorporeal circulation piping is used by fistula patients with particularly high pressure, blood is very likely to flow back to the infusion pump, and the blood in front of the hemodialysis machine blood pump cannot be transferred into it, which makes the efficiency of the hemodialysis extracorporeal circulation piping unsatisfactory when it is used.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a hemodialysis extracorporeal circulation pipeline with a Y-shaped side branch infusion port to overcome the above-mentioned technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A hemodialysis extracorporeal circulation pipeline with a Y-shaped side branch infusion port comprises a dialyzer, an arterial pipeline is arranged on the top of the dialyzer, and the arterial pipeline is provided with an arterial pot, a hemodialysis machine blood pump, a Y-shaped infusion side branch, an arterial sampling joint, a first arterial stop clamp and an arterial connecting joint in sequence from right to left, the end of the arterial connecting joint away from the dialyzer is connected to an arterial puncture needle, and the end of the arterial puncture needle close to the arterial connecting joint is provided with a second arterial stop clamp, and a venous pipeline is arranged at the bottom of the dialyzer, and the venous pipeline is provided with a venous sampling joint, a venous pot, a first venous stop clamp and a venous connecting joint in sequence from right to left, the end of the venous connecting joint away from the dialyzer is connected to the venous puncture needle, and the end of the venous puncture needle close to the venous connecting joint is provided with a second venous stop clamp.

[0008] Furthermore, in order to facilitate the dialyzer to be connected to the venous line and the arterial line, the dialyzer includes an arterial connector arranged at the bottom of the arterial tube, a dialysis tube is arranged at the bottom of the arterial connector, a venous connector is arranged at the bottom of the dialysis tube, and the venous connector cooperates with the venous line.

[0009] Furthermore, in order to facilitate the observation of arterial blood with the arterial cuff, the arterial cuff includes an arterial cuff body arranged on the outside of the arterial pipeline, a plurality of arterial cuff side branches are arranged at one end of the arterial cuff body, an arterial cuff sensor protection cover is arranged at the end of the arterial cuff side branch away from the arterial cuff body, and an arterial cuff side branch flow stop clamp is arranged on the outside of the arterial cuff side branch.

[0010] Furthermore, in order to avoid air backflow when the circulation pipeline is in use, the Y-shaped fluid infusion side branch includes a Y-shaped interface tube arranged on one side of the arterial tube, a Y-shaped interface flow stop clamp is arranged on the outside of the Y-shaped interface tube, a first Y-shaped interface side branch and a second Y-shaped interface side branch are arranged on the top of the Y-shaped interface tube, a first Y-shaped side branch flow stop clamp is arranged on the outside of the first Y-shaped interface side branch, and a second Y-shaped side branch flow stop clamp is arranged on the outside of the second Y-shaped interface side branch.

[0011] Furthermore, in order to facilitate the storage of venous blood in the venous pot, the venous pot includes a venous pot body arranged on the outside of the venous pipeline, a plurality of venous pot side branches are arranged at one end of the venous pot body, a venous pot sensor protection cover is arranged at the end of the venous pot side branch away from the venous pot body, and a venous pot side branch flow stop clamp is arranged on the outside of the venous pot side branch.

[0012] Furthermore, in order to monitor arterial pressure and inject anticoagulants during dialysis treatment, an arterial pressure monitoring tube and a heparin injection tube are provided at the bottom of the blood pump of the hemodialysis machine.

[0013] The beneficial effects of the utility model are:

[0014] 1. Through the installation of a dialyzer, the arterial puncture line and the venous puncture needle are used to perform hemodialysis extracorporeal circulation, and the Y-shaped fluid infusion side branch is provided to facilitate fluid infusion during the dialysis process, thereby improving the stability of the patient's blood circulation. Meanwhile, through the installation of an arterial pot and a venous pot, the blood flow is easy to monitor during dialysis, thereby improving the effect of easy observation during the use of hemodialysis extracorporeal circulation.

[0015] 2. By setting up the arterial pot body and the venous pot body, the blood can be easily observed through the arterial pot body and the venous pot body during dialysis, and by setting up the arterial pot side branches and the venous pot side branches, the patient can adjust the dialysate flow and the type of fluid replacement according to specific needs during hemodialysis, and the arterial pot side branch stop clamp and the venous pot side branch stop clamp can be used to quickly control the blood flow and fluid replacement flow rate, thereby improving the safety during hemodialysis treatment.

[0016] 3. By setting up a Y-type interface tube and utilizing the cooperation of the first Y-type interface side branch and the second Y-type interface side branch, it is convenient for patients to perform fluid infusion operations during hemodialysis, maintain the stability of the patient's hemodialysis circulation, and reduce blood backflow. At the same time, through the arterial pressure monitoring tube and heparin injection tube at the bottom of the hemodialysis machine blood pump, it is convenient to monitor the arterial pressure in real time during hemodialysis, and inject heparin when necessary to prevent thrombosis, thereby improving the efficiency of the hemodialysis extracorporeal circulation pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a hemodialysis extracorporeal circulation circuit with a Y-shaped side branch infusion port according to an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of a dialyzer in a hemodialysis extracorporeal circulation circuit with a Y-shaped side branch infusion port according to an embodiment of the utility model;

[0020] Figure 3 yes Figure 1 A magnified view of the local structure at center A;

[0021] Figure 4 It is a schematic diagram of a Y-shaped fluid infusion side branch structure in a hemodialysis extracorporeal circulation circuit with a Y-shaped side branch fluid infusion port according to an embodiment of the utility model;

[0022] Figure 5 yes Figure 1 Enlarged view of the local structure at point B in the middle.

[0023] In the figure:

[0024] 1. Dialyzer; 101. Arterial connector; 102. Dialysis tube; 103. Venous connector; 104. Dialysate outlet; 105. Dialysate inlet; 2. Arterial line; 3. Arterial pot; 301. Arterial pot body; 302. Arterial pot side branch; 303. Arterial pot sensor protection cover; 304. Arterial pot side branch flow stop clamp; 4. Hemodialysis machine blood pump; 5. Y-type fluid infusion side branch; 501. Y-type interface tube; 502. Y-type interface flow stop clamp; 503. First Y-type interface side branch; 504. Second Y-type interface side branch; 505. First Y-type side branch flow stop clamp; 506. Second Y-type side branch stop clamp; 6. Arterial sampling connector; 7. First arterial stop clamp; 8. Arterial connecting connector; 9. Arterial puncture needle; 10. Second arterial stop clamp; 12. Venous line; 13. Venous sampling connector; 14. Venous pot; 1401. Venous pot body; 1402. Venous pot side branch; 1403. Venous pot sensor protective cover; 1404. Venous pot side branch stop clamp; 15. First venous stop clamp; 16. Venous connecting connector; 17. Venous puncture needle; 18. Second venous stop clamp; 20. Arterial pressure monitoring tube; 21. Heparin injection tube. DETAILED DESCRIPTION

[0025] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] According to an embodiment of the utility model, a hemodialysis extracorporeal circulation circuit with a Y-shaped side branch infusion port is provided.

[0027] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-Figure 5As shown, the hemodialysis extracorporeal circulation pipeline with a Y-shaped side branch insufflation port according to an embodiment of the utility model comprises a dialyzer 1, an arterial pipeline 2 is arranged on the top of the dialyzer 1, and the arterial pipeline 2 is provided with an arterial pot 3, a hemodialysis machine blood pump 4, a Y-shaped insufflation side branch 5, an arterial sampling joint 6, a first arterial stop clamp 7 and an arterial connecting joint 8 from right to left, an arterial puncture needle 9 is arranged at the end of the arterial connecting joint 8 away from the dialyzer 1, and a second arterial stop clamp 10 is arranged at the end of the arterial puncture tube 9 close to the arterial connecting joint 8, a venous pipeline 12 is arranged at the bottom of the dialyzer 1, and a venous sampling joint 13, a venous pot 14, a first venous stop clamp 15 and a venous connecting joint 16 are arranged from right to left on the venous pipeline 12, a venous puncture needle 17 is arranged at the end of the venous connecting joint 16 away from the dialyzer 1, and a second venous stop clamp 18 is arranged at the end of the venous puncture tube 17 close to the venous connecting joint 16.

[0028] With the help of the above technical solution, by setting up a dialyzer 1, using an arterial puncture needle 9 and a venous puncture needle 17, hemodialysis extracorporeal circulation is performed, and by setting up a Y-shaped fluid infusion side branch 5, it is convenient to perform fluid infusion operations during hemodialysis and blood return operations at the end of dialysis, thereby improving the stability of the patient's blood circulation and the convenience and standardization of operation. At the same time, by setting up an arterial pot 3 and a venous pot 14, blood flow can be easily monitored during dialysis, thereby improving the effect of easy observation when using hemodialysis extracorporeal circulation.

[0029] In one embodiment, for the above-mentioned dialyzer 1, the dialyzer 1 includes an arterial connector 101 arranged at the bottom of the arterial line 2, a dialysis tube 102 is arranged at the bottom of the arterial connector 101, a venous connector 103 is arranged at the bottom of the dialysis tube 102, and the venous connector 103 cooperates with the venous line 12, and the dialysis tube 102 has a dialysate inlet and outlet on the side, the end of the venous connector 103 is a dialysate inlet 105, and the end of the arterial connector 101 is a dialysate outlet 104, and the side of the dialyzer venous connector 103 is provided with a dialysate inlet 105, and the side of the arterial connector 101 is provided with a dialysate outlet 104, and the arterial pot 3 includes a dialyzer 3 disposed on the arterial line 12. 2, one end of the arterial pot body 301 is provided with a plurality of arterial pot side branches 302, one end of the arterial pot body 301 is provided with an arterial pot sensor protection cover 303, and the outer side of the arterial pot side branch 302 is provided with an arterial pot side branch flow stop clamp 304, the venous pot 14 includes a venous pot body 1401 arranged on the outer side of the venous pipeline 12, one end of the venous pot body 1401 is provided with a plurality of venous pot side branches 1402, one end of the venous pot side branch 1402 away from the venous pot body 1401 is provided with a venous pot sensor protection cover 1403, and the outer side of the venous pot side branch 1402 is provided with a venous pot side branch flow stop clamp 1404.

[0030] The working principle of the dialyzer 1 is as follows: the venous puncture needle 17 and the arterial puncture needle 9 are inserted into the patient's vein and artery respectively, and after completion, the hemodialysis machine is started to transfer the blood to the inside of the dialysis tube 102, and the dialysis fluid is injected through the dialysis fluid inlet 105 to dialyze the blood, and the dialyzed dialysis fluid is discharged through the dialysis fluid outlet 104, so that the blood undergoes extracorporeal circulation dialysis filtration. After the dialysis is completed, the hemodialysis machine blood pump switch hemodialysis machine blood pump 4, the second arterial stop clamp 10 and the first arterial stop clamp 7 are turned off, and then the arterial line 2 and the arterial puncture needle 9 are separated, and the blood is Connect normal saline and the infusion set to the Y-type fluid infusion side branch 5, and then connect the arterial line 2 to the Y-type fluid infusion side branch 5. After the connection is completed, open the first arterial stop clamp 7, the first Y-type side branch stop clamp 505, the second Y-type side branch stop clamp 504 and the infusion set, and turn on the hemodialysis machine blood pump switch again to return blood to the hemodialysis machine blood pump 4. After the blood is returned, close the hemodialysis machine blood pump 4 switch and the second venous stop clamp 18 hemodialysis machine blood pump, remove the venous puncture needle 17, connect the arterial puncture needle 9 to a 5ml syringe, push normal saline, and remove the needle after the blood in the puncture needle is returned.

[0031] In one embodiment, for the above-mentioned Y-type fluid infusion side branch 5, the Y-type fluid infusion side branch 5 includes a Y-type interface tube 501 arranged on one side of the arterial tube 2, a Y-type interface stop clamp 502 is arranged on the outside of the Y-type interface tube 501, a first Y-type interface side branch 503 and a second Y-type interface side branch 504 are arranged on the top of the Y-type interface tube 501, a first Y-type interface side branch 505 is arranged on the outside of the first Y-type interface side branch 503, a second Y-type side branch stop clamp 506 is arranged on the outside of the second Y-type interface side branch 504, and an arterial pressure monitoring tube 20 and a heparin injection tube 21 are arranged at the bottom of the hemodialysis machine blood pump 4.

[0032] The working principle of the Y-shaped fluid infusion side branch 5 is as follows: the venous puncture needle 17 and the arterial puncture needle 9 are inserted into the patient's vein and artery respectively, and after completion, the hemodialysis machine is started to transfer the blood to the inside of the dialysis tube 102, and the dialysis fluid is injected through the dialysis fluid inlet 105 to dialyze the blood, and the dialyzed dialysis fluid is discharged through the dialysis fluid outlet 104, so that the blood is subjected to extracorporeal circulation dialysis filtration. After the dialysis is completed, the blood pump switch of the hemodialysis machine, the second arterial stop clamp 10 and the first arterial stop clamp 7 are turned off, and then the arterial line 2 and the arterial puncture needle are separated. 9. At the same time, connect the physiological saline and the infusion set to the Y-type fluid infusion side branch 5, and then connect the arterial line 2 to the Y-type fluid infusion side branch 5. After the connection is completed, open the first arterial stop clamp 7, the first Y-type side branch stop clamp 505, the second Y-type side branch stop clamp 504 and the infusion set, and turn on the blood pump switch of the hemodialysis machine again to return blood. After the blood is returned, turn off the blood pump switch and the second venous stop clamp 18, remove the venous puncture needle 17, connect the arterial puncture needle 9 to the 5ml syringe, push the physiological saline, and remove the needle after the blood in the puncture needle is returned.

[0033] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0034] In actual application, the venous puncture needle 17 and the arterial puncture needle 9 are inserted into the patient's vein and artery respectively. After completion, the hemodialysis machine is started to transfer the blood to the inside of the dialysis tube 102, and the dialysis fluid is injected through the dialysis fluid inlet 105 to dialyze the blood. The dialyzed dialysis fluid is discharged through the dialysis fluid outlet 104, so that the blood undergoes extracorporeal circulation dialysis filtration. After the dialysis is completed, the hemodialysis machine blood pump 4 switch, the second arterial stop clamp 10 and the first arterial stop clamp 7 are turned off, and the arterial line 2 and the arterial puncture needle 9 are separated. Connect normal saline and the infusion set to the Y-type fluid infusion side branch 5, and then connect the arterial line 2 to the Y-type fluid infusion side branch 5. After the connection is completed, open the first arterial stop clamp 7, the first Y-type side branch stop clamp 505, the second Y-type side branch stop clamp 504 and the infusion set, and turn on the hemodialysis machine blood pump 4 switch again to return blood. After the blood is returned, turn off the hemodialysis machine blood pump 4 switch and the second venous stop clamp 18, remove the venous puncture needle 17, connect the arterial puncture needle 9 to a 5ml syringe, push normal saline, and remove the needle after the blood in the puncture needle is returned.

[0035] In summary, the arterial puncture needle 9 and the venous puncture needle 17 are used to perform extracorporeal circulation of hemodialysis, and the Y-shaped fluid infusion branch 5 is provided to facilitate fluid infusion operation during dialysis and blood return operation at the end of dialysis, thereby improving the stability of the patient's blood circulation and the convenience and standardization of operation. At the same time, by providing the arterial pot 3 and the venous pot 14, the blood flow is easy to monitor during dialysis, thereby improving the effect of easy observation when the hemodialysis extracorporeal circulation is used.

[0036] In addition, by providing the arterial pot body 301 and the venous pot body 1401, the blood can be easily observed through the arterial pot body 301 and the venous pot body 1401 when dialysis is required, and by providing the arterial pot side branch 302 and the venous pot side branch 1402, when the patient is undergoing hemodialysis, it is convenient to adjust the type of fluid replacement according to specific needs, quickly remove excess air in the arteriovenous pot and monitor the arteriovenous pressure, thereby improving the safety during hemodialysis treatment.

[0037] In addition, by providing a Y-type interface tube 501 and utilizing the cooperation of the first Y-type interface side branch 503 and the second Y-type interface side branch 504, it is convenient for the patient to perform fluid infusion operations during hemodialysis and blood return operations at the end of dialysis, which is convenient for maintaining the stability of the patient's hemodialysis circulation and avoiding blood backflow. At the same time, through the arterial pressure monitoring tube 20 and the heparin injection tube 21 at the bottom of the blood pump 4, it is convenient to monitor the arterial pressure in real time during dialysis, and inject heparin when necessary to prevent thrombosis, thereby improving the efficiency of the hemodialysis extracorporeal circulation circuit when in use.

[0038] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hemodialysis extracorporeal circulation circuit with a Y-shaped side branch infusion port, characterized in that: The dialyzer (1) comprises an arterial line (2) arranged on the top of the dialyzer (1), the arterial line (2) being provided with an arterial pot (3), a hemodialysis machine blood pump (4), a Y-shaped fluid infusion side branch (5), an arterial sampling joint (6), a first arterial flow stop clamp (7) and an arterial connecting joint (8) in sequence from right to left, an arterial puncture needle (9) being arranged at one end of the arterial connecting joint (8) away from the dialyzer (1), and a second arterial flow stop clamp (10) being arranged at one end of the arterial puncture needle (9) close to the arterial connecting joint (8); A venous line (12) is provided at the bottom of the dialyzer (1), and the venous line (12) is provided with a venous sampling connector (13), a venous pot (14), a first venous stop clamp (15) and a venous connecting connector (16) in sequence from right to left. A venous puncture needle (17) is provided at one end of the venous connecting connector (16) away from the dialyzer (1), and a second venous stop clamp (18) is provided at one end of the venous puncture needle (17) close to the venous connecting connector (16).

2. A hemodialysis extracorporeal circulation circuit with a Y-shaped side branch infusion port according to claim 1, characterized in that: The dialyzer (1) comprises an arterial connector (101) arranged at the bottom of the arterial line (2), a dialysis tube (102) is arranged at the bottom of the arterial connector (101), a venous connector (103) is arranged at the bottom of the dialysis tube (102), and the venous connector (103) cooperates with the venous line (12).

3. A hemodialysis extracorporeal circulation circuit with a Y-shaped side branch infusion port according to claim 2, characterized in that: A dialysate outlet (104) is provided on one side of the top of the venous connector (103), and a dialysate inlet (105) is provided on one side of the bottom of the venous connector (103).

4. A hemodialysis extracorporeal circulation circuit with a Y-shaped side branch infusion port according to claim 3, characterized in that: The arterial pot (3) comprises an arterial pot body (301) arranged outside the arterial pipeline (2); a plurality of arterial pot side branches (302) are arranged at one end of the arterial pot body (301); an arterial pot sensor protection cover (303) is arranged at one end of the arterial pot side branch (302) away from the arterial pot body (301); and an arterial pot side branch flow stop clamp (304) is arranged outside the arterial pot side branch (302).

5. A hemodialysis extracorporeal circulation circuit with a Y-shaped side branch infusion port according to claim 4, characterized in that: The Y-shaped fluid infusion side branch (5) comprises a Y-shaped interface tube (501) arranged on one side of the arterial pipeline (2); a Y-shaped interface flow stop clamp (502) is arranged on the outer side of the Y-shaped interface tube (501); a first Y-shaped interface side branch (503) and a second Y-shaped interface side branch (504) are arranged on the top of the Y-shaped interface tube (501); a first Y-shaped side branch flow stop clamp (505) is arranged on the outer side of the first Y-shaped interface side branch (503); and a second Y-shaped side branch flow stop clamp (506) is arranged on the outer side of the second Y-shaped interface side branch (504).

6. A hemodialysis extracorporeal circulation circuit with a Y-shaped side branch infusion port according to claim 5, characterized in that: The venous pot (14) comprises a venous pot body (1401) arranged outside the venous pipeline (12); a plurality of venous pot side branches (1402) are arranged at one end of the venous pot body (1401); a venous pot sensor protection cover (1403) is arranged at one end of the venous pot side branches (1402) away from the venous pot body (1401); and a venous pot side branch flow stop clamp (1404) is arranged outside the venous pot side branches (1402).

7. A hemodialysis extracorporeal circulation circuit with a Y-shaped side branch infusion port according to claim 1, characterized in that: An arterial pressure monitoring tube (20) and a heparin injection tube (21) are arranged at the bottom of the hemodialysis machine blood pump (4).

Images