CN111282058B - Shunt external device for hemodialysis - Google Patents

Abstract

Translated fromChinese

本发明公开了一种血透用分流外接装置，将第一螺栓与第一连接板分离，然后将第一推板向下拉，第一推板带动第一连接杆在第一滑槽内向下滑动，第一连接杆带动第三挡板向下移动，第三挡板与第一开口分离，保持第一隔离件和第二隔离件保持通路；将第二螺栓与第二连接板分离，然后将第二推板向一侧推，可保持第三隔离件和第四隔离件通路；装置不使用时，将第一推板向上推，第三挡板可将第一开口密封，使用第一螺栓固定，可实现第一隔离件和第二隔离件的密封隔离；将第二推板向一侧推，第六挡板将第三开口密封，使用第二螺栓固定，可实现第三隔离件和第四隔离件密封隔离，可实现装置的密封隔离，可避免装置被细菌污染。

The invention discloses a shunt external device for hemodialysis. The first bolt is separated from the first connecting plate, and then the first push plate is pulled down, and the first push plate drives the first connecting rod downward in the first chute. Sliding, the first connecting rod drives the third baffle to move downward, the third baffle is separated from the first opening, and the first spacer and the second spacer are kept in the passage; the second bolt is separated from the second connecting plate, and then Push the second push plate to one side to keep the passage of the third spacer and the fourth spacer; when the device is not in use, push the first push plate upward, the third baffle can seal the first opening, and use the first push plate to seal the first opening. Bolt fixing can realize the sealing isolation of the first spacer and the second spacer; push the second push plate to one side, the sixth baffle seals the third opening, and use the second bolt to fix the third spacer. It is sealed and isolated from the fourth spacer, so that the sealed isolation of the device can be realized, and the bacterial contamination of the device can be avoided.

Description

Shunt external device for hemodialysis

Technical Field

The invention relates to the technical field of hemodialysis, in particular to a shunt external device for hemodialysis.

Background

Hemodialysis (HD) is one of the alternative treatments for the kidney of patients with acute and chronic renal failure. The method comprises the steps of draining blood in vivo to the outside of the body, enabling the blood and electrolyte solution (dialysate) with similar body concentration to be inside and outside one hollow fiber through a dialyzer consisting of a plurality of hollow fibers, and carrying out substance exchange through dispersion, ultrafiltration, adsorption and convection principles, so as to remove metabolic waste in the body and maintain the balance of electrolyte and acid and alkali; at the same time, the excess water in the body is removed, and the whole process of purified blood reinfusion is called hemodialysis.

Currently, heparin dialysis inevitably causes blood clots or impurities in hemodialysis dialyzers for patients who have bleeding tendency and are forbidden to suffer from delayed prolongation of blood coagulation time, liver or renal insufficiency, severe hypertension, cerebral hemorrhage, ulcer diseases, pregnant women, threatened abortion, postoperative surgery, hemophilia, postpartum and the like, once the patients enter a human body, medical care personnel can have great risk to remove liquid with the blood clots by knocking or flushing, and the hemodialysis is guaranteed to be completed, but the treatment effect is influenced in an alternate way. Patent "a shunt external device for hemodialysis" is a patent in a patent repository (grant No. CN 208389072U, grant No. 2019.01.18), including: the dialyzer connecting pipe comprises a first connecting pipe (1), a second connecting pipe (2) and a third connecting pipe (3) which are externally connected, wherein the upper end and the lower end of the first connecting pipe (1) are respectively provided with a first threaded port (1-1) and a second threaded port (1-2) which are connected with a dialyzer connecting pipe, one end of the second connecting pipe (2) and one end of the third connecting pipe (3) are respectively and vertically communicated with the side wall of the first connecting pipe (1) through threaded bayonets, a waste liquid storage box (4) is respectively arranged below the middle parts of the second connecting pipe (2) and the third connecting pipe (3), and the other ends of the second connecting pipe (2) and the third connecting pipe (3) are mutually communicated; however, the device disclosed in the above patent has a poor isolation effect, and is easily contacted with the outside air when not in use or after use, so that the internal space of the device is polluted, and the safety of a patient is affected.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the existing defects and provide a shunt external device for hemodialysis, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a shunt external device for hemodialysis comprises a first connecting pipe, a second connecting pipe and a third connecting pipe, wherein a first threaded port connected with a dialyzer connecting pipe is arranged at the top of the first connecting pipe, a second threaded port connected with the dialyzer connecting pipe is arranged at the bottom of the first connecting pipe, one end of the second connecting pipe is vertically communicated with a side wall on the first connecting pipe through a first threaded bayonet, one end of the third connecting pipe is vertically communicated with the side wall on the first connecting pipe through a second threaded bayonet, the second connecting pipe is arranged above the third connecting pipe, the other end of the second connecting pipe is connected with the other end of the third connecting pipe through a fourth connecting pipe, a first waste liquid containing box is arranged at the bottom of the second connecting pipe, a second waste liquid containing box is arranged at the bottom of the third connecting pipe, and a first isolating piece is arranged in the first connecting pipe and between the second connecting pipe and the first threaded port, a second partition is arranged in the first connecting pipe between the third connecting pipe and the second threaded opening, the first partition and the second partition are identical in structure, the first partition comprises a first sleeve and a second sleeve, the first sleeve is sleeved on the outer side of the first connecting pipe, the second sleeve is sleeved on the inner side of the first connecting pipe, a first baffle is arranged at the top of the inner wall of the second sleeve, a first opening is formed in the top of the first baffle, a second baffle is arranged at the bottom of the inner wall of the second sleeve, a second opening is formed in the bottom of the second baffle, a first sealing element which is movably connected is arranged in the second sleeve, the first sealing element comprises a third baffle, a plurality of first supporting rods are arranged on the outer wall of the third baffle, which is close to one side of the second baffle, and the diameter of the third baffle is larger than that of the first opening, third baffle outer wall center is equipped with the head rod, head rod one end in the first sleeve outside is equipped with first push pedal, first sleeve outer wall vertical be equipped with head rod assorted first spout, first push pedal top is equipped with the first connecting plate, second sleeve outer wall be equipped with first connecting plate assorted first bolt, the second take over inside in first take over with be equipped with the third separator between the first waste liquid receiver, the third take over inside in first take over with be equipped with the fourth separator between the second waste liquid receiver.

As a preferable technical solution of the present invention, a first electromagnetic valve is disposed at a connection position of the first connection pipe and the second connection pipe, and a second electromagnetic valve is disposed at a connection position of the first connection pipe and the third connection pipe.

In a preferred embodiment of the present invention, the first solenoid valve and the second solenoid valve are controlled by a control main system, a sensor for detecting blood clots or impurities is further placed in the first tube, and a detection output end of the sensor is connected to the control main system.

As a preferable aspect of the present invention, the first waste liquid storage tank and the second connection pipe are connected by a first fixing buckle, and the second waste liquid storage tank and the third connection pipe are connected by a second fixing buckle.

As a preferred technical scheme of the present invention, a first filter screen is disposed at a joint of the first waste liquid storage box and the second connection pipe, and a second filter screen is disposed at a joint of the first waste liquid storage box and the third connection pipe.

As a preferable aspect of the present invention, the third separator and the fourth separator have the same structure.

As a preferable technical solution of the present invention, the side wall of the upper end of the first connecting pipe is provided with an air vent.

As a preferable technical solution of the present invention, the third separating member includes a third sleeve and a fourth sleeve, the third sleeve is sleeved outside the second connecting pipe, the fourth sleeve is sleeved inside the second connecting pipe, one end of an inner wall of the fourth sleeve is provided with a fourth baffle, an outer wall of the fourth baffle is provided with a third opening, the other end of the inner wall of the fourth sleeve is provided with a fifth baffle, an outer wall of the fifth baffle is provided with a fourth opening, a second sealing member movably connected with the fourth sleeve is arranged inside the fourth sleeve, the second sealing member includes a sixth baffle, one side of the outer wall of the sixth baffle, which is close to the fifth baffle, is provided with a plurality of second supporting rods, a diameter of the sixth baffle is larger than a diameter of the third opening, a center of the outer wall of the sixth baffle is provided with a second connecting rod, one end of the second connecting rod is provided with a second push pedal outside the third sleeve, the fourth sleeve outer wall level be equipped with second connecting rod assorted second spout, second push pedal outer wall one side is equipped with the second connecting plate, fourth sleeve outer wall be equipped with second connecting plate assorted second bolt.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the first sleeve, the second sleeve, the first push plate, the first connecting rod, the first chute, the first baffle, the second baffle, the third baffle, the first opening, the second opening and the first support rod are arranged, so that the sealing isolation and the passage of the first connecting pipe can be realized, and the convenience and the rapidness are realized.

2. According to the invention, the third sleeve, the fourth sleeve, the second push plate, the second connecting rod, the second sliding chute, the fourth baffle, the fifth baffle, the sixth baffle, the third opening, the fourth opening and the second support rod are arranged, so that the sealing isolation and the passage of the second connecting pipe and the third connecting pipe can be realized, and the convenience and the rapidness are realized.

3. According to the invention, the first isolating piece, the second isolating piece, the third isolating piece and the fourth isolating piece are arranged, so that the sealing isolation of the device can be realized, and the device can be prevented from being polluted by bacteria.

Drawings

FIG. 1 is a schematic view of an overall structure of a shunt external device for hemodialysis according to the present invention;

FIG. 2 is an enlarged view of the portion A of the external shunt device for hemodialysis of the present invention shown in FIG. 1;

FIG. 3 is a front view of a first sleeve of the hemodialysis shunt external device of the present invention;

FIG. 4 is a front view of a second sleeve of the hemodialysis shunt external device of the present invention;

fig. 5 is a front view of a second connection tube of the hemodialysis shunt external device of the present invention.

In the figure: 1. a first adapter tube; 2. a second adapter tube; 3. a third connection pipe; 4. a first threaded port; 5. a second threaded port; 6. a first threaded bayonet; 7. a second threaded bayonet; 8. a fourth connection pipe; 9. a first waste liquid storage box; 10. a second waste liquid storage box; 11. a first spacer; 12. a second spacer; 13. a first sleeve; 14. a second sleeve; 15. a first baffle plate; 16. a first opening; 17. a second baffle; 18. a second opening; 19. a first seal member; 20. a third baffle plate; 21. a first support bar; 22. a first connecting rod; 23. a first push plate; 24. a first chute; 25. a first connecting plate; 26. a first bolt; 27. a third spacer; 28. a fourth spacer; 29. a first solenoid valve; 30. a second solenoid valve; 31. controlling a main system; 32. and (4) exhausting holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a shunt external device for hemodialysis comprises a first connecting pipe 1, a second connecting pipe 2 and a third connecting pipe 3, wherein a first threaded port 4 connected with a dialyzer connecting pipe is arranged at the top of the first connecting pipe 1, a second threaded port 5 connected with the dialyzer connecting pipe is arranged at the bottom of the first connecting pipe 1, one end of the second connecting pipe 2 is vertically communicated with the side wall of the first connecting pipe 1 through a first threaded bayonet 6, one end of the third connecting pipe 3 is vertically communicated with the side wall of the first connecting pipe 1 through a second threaded bayonet 7, the second connecting pipe 2 is arranged above the third connecting pipe 3, the other end of the second connecting pipe 2 is connected with the other end of the third connecting pipe 3 through a fourth connecting pipe 8, a first waste liquid storage box 9 is arranged at the bottom of the second connecting pipe 2, a second waste liquid storage box 10 is arranged at the bottom of the third connecting pipe 3, and a first isolation threaded part 11 is arranged between the second connecting pipe 2 and the first threaded port 4 inside the first connecting pipe 1, a second partition 12 is arranged in the first connecting pipe 1 between the third connecting pipe 3 and the second threaded opening 5, the first partition 11 and the second partition 12 have the same structure, the first partition 11 includes a first sleeve 13 and a second sleeve 14, the first sleeve 13 is sleeved outside the first connecting pipe 1, the second sleeve 14 is sleeved inside the first connecting pipe 1, a first baffle 15 is arranged on the top of the inner wall of the second sleeve 14, a first opening 16 is arranged on the top of the first baffle 15, a second baffle 17 is arranged on the bottom of the inner wall of the second sleeve 14, a second opening 18 is arranged on the bottom of the second baffle 17, a movably connected first sealing element 19 is arranged in the second sleeve 14, the first sealing element 19 includes a third baffle 20, and a plurality of first support rods 21 are arranged on the outer wall of the third baffle 20 near the second baffle 17, third baffle 20's diameter is greater than first opening 16's diameter, 20 outer wall centers of third baffle are equipped with head rod 22, head rod 22 one end in the first sleeve 13 outside is equipped with first push pedal 23, first sleeve 13 outer wall vertical be equipped with head rod 22 assorted first spout 24, first push pedal 23 top is equipped with first connecting plate 25, first sleeve 13 outer wall be equipped with first connecting plate 25 assorted first bolt 26, second take over 2 inside in first take over 1 with be equipped with third separator 27 between the first waste liquid receiver 9, third take over 3 inside in first take over 1 with be equipped with fourth separator 28 between the second waste liquid receiver 10.

In this embodiment, preferably, a firstelectromagnetic valve 29 is disposed at a connection position of thefirst connection pipe 1 and thesecond connection pipe 2, and a second electromagnetic valve 30 is disposed at a connection position of thefirst connection pipe 1 and thethird connection pipe 3.

In this embodiment, it is preferable that thefirst solenoid valve 29 and the second solenoid valve 30 are controlled by amain control system 31, a sensor for detecting blood clots or impurities is further disposed in thefirst adapter tube 1, and a sensor detection output is connected to themain control system 31.

In this embodiment, preferably, the second wasteliquid storage box 10 and thethird adapter 3 are connected by a second fixing snap.

In this embodiment, preferably, a first filter screen is arranged at a joint of the first wasteliquid storage box 9 and thesecond connection pipe 2, and a second filter screen is arranged at a joint of the first wasteliquid storage box 10 and thethird connection pipe 3.

In this embodiment, it is preferable that thethird separator 27 and thefourth separator 28 have the same structure.

In this embodiment, preferably, the third separating member 27 includes a third sleeve and a fourth sleeve, the third sleeve is sleeved outside the second connecting pipe 2, the fourth sleeve is sleeved inside the second connecting pipe 2, one end of the inner wall of the fourth sleeve is provided with a fourth baffle, the outer wall of the fourth baffle is provided with a third opening, the other end of the inner wall of the fourth sleeve is provided with a fifth baffle, the outer wall of the fifth baffle is provided with a fourth opening, a second sealing member movably connected with the fourth sleeve is arranged inside the fourth sleeve, the second sealing member includes a sixth baffle, one side of the outer wall of the sixth baffle close to the fifth baffle is provided with a plurality of second supporting rods, the diameter of the sixth baffle is larger than that of the third opening, the center of the outer wall of the sixth baffle is provided with a second connecting rod, one end of the second connecting rod is provided with a second pushing plate outside the third sleeve, the fourth sleeve outer wall level be equipped with second connecting rod assorted second spout, second push pedal outer wall one side is equipped with the second connecting plate, fourth sleeve outer wall be equipped with second connecting plate assorted second bolt.

When the dialyzer is used, the threaded interface of the first connecting pipe 1 is connected with the dialyzer connecting pipe, the first bolt 26 is separated from the first connecting plate 25, then the first push plate 23 is pulled downwards, the first push plate 23 drives the first connecting rod 22 to slide downwards in the first sliding groove 24, the first connecting rod 22 drives the third baffle plate 20 to move downwards, the third baffle plate 20 is separated from the first opening 16, and the first isolating piece 11 and the second isolating piece 12 are kept to be communicated; separating the second bolt from the second connecting plate, and pushing the second push plate to one side to keep the passage of the third separator 27 and the fourth separator 28; when a blood clot or impurities appear, the sensor can send out an alarm after monitoring, meanwhile, information is transmitted to the first electromagnetic valve 29 and the second electromagnetic valve 30, the first electromagnetic valve 29 is separated from the first connecting pipe 1 and closed, the blood clot or the impurities enter the second connecting pipe 2 or the third connecting pipe 3, the blood clot or the impurities are blocked, blood permeation is carried out without risk until the completion, the operation is convenient, and adverse events are reduced; when the device is not used, the first push plate 15 is pushed upwards, the third baffle plate 20 can seal the first opening 16, and the first bolt 26 is used for fixing, so that the first isolation piece 11 and the second isolation piece 12 can be sealed and isolated; push away the second push pedal to one side, the sixth baffle is sealed with the third opening, uses the second bolt fastening, can realize that third isolator and fourth isolator are sealed to be kept apart, can realize the sealed isolation of device, can avoid the device to be contaminated by the bacterium.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

Translated fromChinese

1.一种血透用分流外接装置，包括第一接管（1）、第二接管（2）和第三接管（3），其特征在于：所述第一接管（1）顶部设有与透析器连接管连接的第一螺纹口（4），所述第一接管（1）底部设有与透析器连接管连接的第二螺纹口（5），所述第二接管（2）一端通过第一螺纹卡口（6）与所述第一接管（1）上的侧壁垂直接通，所述第三接管（3）一端通过第二螺纹卡口（7）与所述第一接管（1）上的侧壁垂直接通，所述第二接管（2）设于所述第三接管（3）上方，所述第二接管（2）另一端与所述第三接管（3）另一端通过第四接管（8）连接，所述第二接管（2）底部设有第一废液收纳盒（9），所述第三接管（3）底部设有第二废液收纳盒（10），所述第一接管（1）内部于所述第二接管（2）和所述第一螺纹口（4）之间设有第一隔离件（11），所述第一接管（1）内部于所述第三接管（3）和所述第二螺纹口（5）之间设有第二隔离件（12），所述第一隔离件（11）和所述第二隔离件（12）结构相同，所述第一隔离件（11）包括第一套筒（13）和第二套筒（14），所述第一套筒（13）套设于所述第一接管（1）外侧，所述第二套筒（14）套设于所述第一接管（1）内侧，所述第二套筒（14）内壁顶部设有第一挡板（15），所述第一挡板（15）顶部设有第一开口（16），所述第二套筒（14）内壁底部设有第二挡板（17），所述第二挡板（17）底部设有第二开口（18），所述第二套筒（14）内部设有活动连接的第一密封件（19），所述第一密封件（19）包括第三挡板（20），所述第三挡板（20）外壁靠近所述第二挡板（17）一侧设有若干个第一支撑杆（21），所述第三挡板（20）的直径大于所述第一开口（16）的直径，所述第三挡板（20）外壁中心设有第一连接杆（22），所述第一连接杆（22）一端于所述第一套筒（13）外侧设有第一推板（23），所述第一套筒（13）外壁竖直设有与所述第一连接杆（22）相匹配的第一滑槽（24），所述第一推板（23）顶部设有第一连接板（25），所述第一 套筒（13）外壁设有与所述第一连接板（25）相匹配的第一螺栓（26），所述第二接管（2）内部于所述第一接管（1）和所述第一废液收纳盒（9）之间设有第三隔离件（27），所述第三接管（3）内部于所述第一接管（1）和所述第二废液收纳盒（10）之间设有第四隔离件（28）。1. A shunt external device for hemodialysis, comprising a first connecting pipe (1), a second connecting pipe (2) and a third connecting pipe (3), characterized in that: the top of the first connecting pipe (1) is provided with dialysis The first threaded port (4) connected with the dialyzer connecting pipe, the bottom of the first pipe (1) is provided with a second threaded port (5) connected with the dialyzer connecting pipe, and one end of the second pipe (2) passes through the first pipe (1). A threaded bayonet (6) is vertically connected to the side wall of the first connecting tube (1), and one end of the third connecting tube (3) is connected to the first connecting tube (1) through the second threaded bayonet (7). ) is connected vertically, the second pipe (2) is arranged above the third pipe (3), and the other end of the second pipe (2) is connected to the other end of the third pipe (3). Connected by the fourth connecting pipe (8), the bottom of the second connecting pipe (2) is provided with a first waste liquid storage box (9), and the bottom of the third connecting pipe (3) is provided with a second waste liquid storage box (10). , a first spacer (11) is arranged inside the first pipe (1) between the second pipe (2) and the first threaded port (4), and the first pipe (1) is internally A second spacer (12) is provided between the third pipe (3) and the second threaded port (5), the first spacer (11) and the second spacer (12) The structure is the same, the first spacer (11) includes a first sleeve (13) and a second sleeve (14), the first sleeve (13) is sleeved on the outside of the first nozzle (1) , the second sleeve (14) is sleeved on the inner side of the first nozzle (1), the top of the inner wall of the second sleeve (14) is provided with a first baffle (15), the first baffle (15) The top is provided with a first opening (16), the bottom of the inner wall of the second sleeve (14) is provided with a second baffle (17), and the bottom of the second baffle (17) is provided with a second opening ( 18), the inside of the second sleeve (14) is provided with a first seal (19) that is movably connected, the first seal (19) includes a third baffle (20), the third baffle (20) Several first support rods (21) are provided on the side of the outer wall close to the second baffle plate (17), and the diameter of the third baffle plate (20) is larger than the diameter of the first opening (16). , the center of the outer wall of the third baffle plate (20) is provided with a first connecting rod (22), and one end of the first connecting rod (22) is provided with a first push plate (22) outside the first sleeve (13). 23), the outer wall of the first sleeve (13) is vertically provided with a first chute (24) matching the first connecting rod (22), and the top of the first push plate (23) is provided with A first connecting plate (25), the outer wall of the first sleeve (13) is provided with a first bolt (26) that matches the first connecting plate (25), and the second nozzle (2) is located inside the A third spacer (27) is provided between the first pipe (1) and the first waste liquid storage box (9), and the third pipe (3) is inside the first pipe (1) A fourth spacer (28) is provided between the second waste liquid storage box (10).2.根据权利要求1所述一种血透用分流外接装置，其特征在于：所述第一接管（1）与所述第二接管（2）连接处设有第一电磁阀（29），所述第一接管（1）和所述第三接管（3）连接处设有第二电磁阀（30）。2. A shunt external device for hemodialysis according to claim 1, characterized in that: a first solenoid valve (29) is provided at the connection between the first connecting pipe (1) and the second connecting pipe (2), A second solenoid valve (30) is provided at the connection between the first pipe (1) and the third pipe (3).3.根据权利要求2所述一种血透用分流外接装置，其特征在于：所述第一电磁阀（29）和所述第二电磁阀（30）利用控制主系统（31）控制，所述第一接管（1）内还放置有检测血凝块或杂质的传感器，传感器检测输出端连接到控制主系统（31）。3. A shunt external device for hemodialysis according to claim 2, characterized in that: the first solenoid valve (29) and the second solenoid valve (30) are controlled by a main control system (31), so A sensor for detecting blood clots or impurities is also placed in the first nozzle (1), and the detection output end of the sensor is connected to the main control system (31).4.根据权利要求1所述一种血透用分流外接装置，其特征在于：所述第一废液收纳盒（9）与所述第二接管（2）通过第一固定搭扣连接，所述第二废液收纳盒（10）与所述第三接管（3）之间通过第二固定搭扣连接。4. A shunt external device for hemodialysis according to claim 1, characterized in that: the first waste liquid storage box (9) and the second connecting pipe (2) are connected by a first fixing hasp, so The second waste liquid storage box (10) and the third pipe (3) are connected by a second fixing hasp.5.根据权利要求1所述一种血透用分流外接装置，其特征在于：所述第一废液收纳盒（9）与所述第二接管（2）连接处设有第一过滤网，所述第一废液收纳盒（10）与所述第三接管（3）连接处设有第二过滤网。The shunt external device for hemodialysis according to claim 1, characterized in that: a first filter screen is provided at the connection between the first waste liquid storage box (9) and the second connecting pipe (2), A second filter screen is provided at the connection between the first waste liquid storage box (10) and the third pipe (3).6.根据权利要求1所述一种血透用分流外接装置，其特征在于：所述第三隔离件（27）和所述第四隔离件（28）结构相同。6 . The external shunt device for hemodialysis according to claim 1 , wherein the third spacer ( 27 ) and the fourth spacer ( 28 ) have the same structure. 7 .7.根据权利要求1所述一种血透用分流外接装置，其特征在于：所述第一接管（1）上端侧壁设有排气孔（32）。7. A shunt external device for hemodialysis according to claim 1, characterized in that: an exhaust hole (32) is provided on the upper end side wall of the first connecting pipe (1).8.根据权利要求6所述一种血透用分流外接装置，其特征在于：所述第三隔离件（27）包括第三套筒和第四套筒，所述第三套筒套设于所述第二接管（2）外侧，所述第四套筒套设于所述第二接管（2）内侧，所述第四套筒内壁一端设有第四挡板，所述第四挡板外壁开设有第三开口，所述第四套筒内壁另一端设有第五挡板，所述第五挡板外壁开设有第四开口，所述第四套筒内部设有活动连接的第二密封件，所述第二密封件包括第六挡板，所述第六挡板外壁靠近所述第五挡板一侧设有若干个第二支撑杆，所述第六挡板的直径大于所述第三开口的直径，所述第六挡板外壁中心设有第二连接杆，所述第二连接杆一端于所述第三套筒外侧设有第二推板，所述第四套筒外壁水平设有与所述第二连接杆相匹配的第二滑槽，所述第二推板外壁一侧设有第二连接板，所述第四套筒外壁设有与所述第二连接板相匹配的第二螺栓。The shunt external device for hemodialysis according to claim 6, characterized in that: the third spacer (27) comprises a third sleeve and a fourth sleeve, and the third sleeve is sleeved on the On the outside of the second pipe (2), the fourth sleeve is sleeved on the inner side of the second pipe (2), and one end of the inner wall of the fourth sleeve is provided with a fourth baffle, the fourth baffle The outer wall is provided with a third opening, the other end of the inner wall of the fourth sleeve is provided with a fifth baffle plate, the outer wall of the fifth baffle plate is provided with a fourth opening, and the inside of the fourth sleeve is provided with a second movably connected second baffle plate. The second seal includes a sixth baffle, the outer wall of the sixth baffle is provided with a plurality of second support rods on the side close to the fifth baffle, and the diameter of the sixth baffle is larger than the diameter of the sixth baffle. The diameter of the third opening, the center of the outer wall of the sixth baffle is provided with a second connecting rod, one end of the second connecting rod is provided with a second push plate outside the third sleeve, the fourth sleeve is The outer wall is horizontally provided with a second chute matching the second connecting rod, a second connecting plate is provided on one side of the outer wall of the second push plate, and the outer wall of the fourth sleeve is provided with a connection with the second plate to match the second bolt.

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