CN219071505U

CN219071505U - Hemodialysis extracorporeal circulation pipeline

Info

Publication number: CN219071505U
Application number: CN202222637061.1U
Authority: CN
Inventors: 周福; 余江南; 刘传
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-09
Filing date: 2022-10-09
Publication date: 2023-05-26
Anticipated expiration: 2032-10-09

Abstract

The utility model discloses a hemodialysis extracorporeal circulation pipeline, which comprises an arterial pipeline, a hemodialysis device and a venous pipeline; the arterial pipeline comprises a first arterial tube, a second arterial tube and a second arterial tube, wherein the first arterial tube, the second arterial tube and the second arterial tube are arranged in parallel; the venous pipeline comprises a first venous pipe, a second venous pipe and a second venous pipe, wherein the first venous pipe, the second venous pipe and the second venous pipe are arranged in parallel; the hemodialysis device and the connecting pipe are arranged in parallel between the second arterial tube and the first venous tube; and water bags are respectively arranged on the second arterial tube and the first venous tube. The utility model has simple structure and simple operation, can effectively reduce the risk of tube blockage, reduce the loss of blood, improve the dialysis sufficiency of patients, reduce the operation burden of medical staff and reduce the delay treatment time and the economic loss of patients caused by the replacement of pipelines.

Description

Hemodialysis extracorporeal circulation pipeline

Technical Field

The utility model relates to the field of medical equipment, in particular to an extracorporeal circulation pipeline for hemodialysis.

Background

Currently, hemodialysis plays a very important role in the treatment of many diseases, and an anticoagulant is often required for extracorporeal circulation of hemodialysis to prevent coagulation. However, anticoagulants such as gastrointestinal bleeding, post-operative bleeding, active bleeding during the menstrual period, etc. are not suitable for use during some special dialysis treatments. There is also a potential risk of bleeding in patients, and only small doses of anticoagulant are used in hemodialysis to circumvent the bleeding risk. The existing hemodialysis extracorporeal circulation pipeline is used for hemodialysis patients under the two conditions, coagulation is extremely easy to cause, the blood circulation pipeline is blocked, blood cannot return, a large amount of blood is lost, a brand new pipeline is required to be replaced, the hemodialysis is performed again, the treatment time is delayed, and meanwhile the treatment cost is increased.

Therefore, it is important to design a hemodialysis extracorporeal circulation line for hemodialysis patients in a state where there is a high risk of hemodialysis or coagulation without using an anticoagulant.

Disclosure of Invention

The purpose of the present utility model is to provide a hemodialysis extracorporeal circulation line for hemodialysis patients in a state where there is no anticoagulant or a high risk of coagulation.

The technical scheme adopted by the utility model is as follows: an extracorporeal circulation circuit for hemodialysis, which comprises an arterial circuit, a hemodialysis device and a venous circuit;

the arterial pipeline comprises a first arterial tube, a second arterial tube and a second arterial tube, wherein the first arterial tube, the second arterial tube and the second arterial tube are arranged in parallel; the front end of the first arterial tube is connected with a patient, the rear end of the first arterial tube is Y-shaped, and two branches of the Y-shaped tube are respectively connected with inlets of the first arterial tube and the second arterial tube, so that the first arterial tube and the second arterial tube are arranged in parallel; a blood pump is connected to the first arterial tube to pump out blood in the patient; the front end and the rear end of the second arterial tube are both Y-shaped, two branches of the Y-shaped tube at the front end are respectively connected with the outlets of the first arterial tube and the second arterial tube, one branch of the Y-shaped tube at the rear end is connected with the inlet of the hemodialysis device, and the other branch is connected with the inlet of the connecting tube;

the venous pipeline comprises a first venous pipe, a second venous pipe and a second venous pipe, wherein the first venous pipe, the second venous pipe and the second venous pipe are arranged in parallel; the front end and the rear end of the first intravenous tube are both Y-shaped, one branch of the Y-shaped tube at the front end is connected with the outlet of the hemodialysis device, and the other branch is connected with the outlet of the connecting tube; two branches of the Y-shaped pipe at the rear end are respectively connected with inlets of the first venous pot and the second venous pot, so that the first venous pot and the second venous pot are arranged in parallel; the front end of the second intravenous tube is Y-shaped, two branches of the Y-shaped tube are respectively connected with the outlets of the first intravenous pot and the second intravenous pot, and the rear end of the Y-shaped tube is connected with a human body;

and water bags are respectively arranged on the second arterial tube and the first venous tube, so that the temperature of blood is kept at 36.5-37.5 ℃ to avoid coagulation in the pipeline.

Wherein the water bags all comprise a water inlet, a water outlet and a cavity bag body for containing water; the water inlet and the water outlet are connected with a circulating water supply device; the circulating water supply device comprises a water pump, a water tank and a water temperature adjusting device.

Wherein, the front and back of the arterial kettle I, the arterial kettle II, the hemodialysis device, the connecting pipe, the venous kettle I and the venous kettle II are provided with pipe clamps for realizing respective opening and closing; the first arterial kettle and the second arterial kettle are provided with a pipe clamp in front and behind, and the pipe clamps are respectively an arterial kettle pipe clamp I, an arterial kettle pipe clamp II, an arterial kettle pipe clamp III and an arterial kettle pipe clamp IV; the front and rear pipe clamps of the hemodialysis device are respectively a first pipe clamp of the hemodialysis device and a second pipe clamp of the hemodialysis device; the pipe clamps arranged in front of and behind the connecting pipe are respectively a first connecting pipe clamp and a second connecting pipe clamp; the first venous pot and the second venous pot are provided with a pipe clamp in front and behind, and the first venous pot pipe clamp, the second venous pot pipe clamp, the third venous pot pipe clamp and the fourth venous pot pipe clamp are respectively arranged.

The connecting pipe can be replaced by a second hemodialysis device which is connected with the hemodialysis device on the other branch in parallel, and pipe clamps are arranged in front of and behind the second hemodialysis device and are a third hemodialysis device pipe clamp and a fourth hemodialysis device pipe clamp for realizing opening and closing of the second hemodialysis device.

The first arterial kettle and the second arterial kettle are internally provided with filter screens, the filter screens are arranged at the bottom of the inner surface of the kettle and used for intercepting blood clots, so that the blood clots falling off are prevented from entering the dialyzer, the dialyzer is blocked, and the dialysis efficiency of the dialyzer is affected.

The first venous pot and the second venous pot are internally provided with filter screens, and the filter screens are arranged at the bottom of the inner surface of the pot and used for intercepting blood clots and avoiding dangers caused by falling blood clots entering a human body.

The utility model has the advantages that: 1. the arterial kettle and the venous kettle adopt a double-kettle parallel design, and can rapidly switch the pipeline when the blockage or the blockage is about to occur, so that a new passage is formed, and the dialysis is continued; 2. the connecting pipe is creatively arranged and connected with the hemodialysis machine in parallel, when the hemodialysis machine is blocked, the branch where the connecting pipe is positioned can be rapidly switched to return blood, and the other branch can be used for continuing dialysis treatment after the hemodialysis machine is replaced; 3. the water bags are respectively arranged on the second arterial tube and the first venous tube, so that the blood temperature is kept at 36.5-37.5 ℃, the blood coagulation risk is reduced, the blood temperature of reinfusion is ensured, and the blood is safely reinfused; 4. a filter screen is arranged in the arterial kettle to intercept blood clots, so that the blood clots falling off are prevented from entering the dialyzer to block the dialyzer, and the dialysis efficiency of the dialyzer is influenced. The utility model has simple structure and simple operation, can effectively reduce the risk of tube blockage, reduce the loss of blood, improve the dialysis sufficiency of patients, reduce the operation burden of medical staff and reduce the delay treatment time and the economic loss of patients caused by the replacement of pipelines.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of the present utility model;

FIG. 2 is a schematic diagram of a second embodiment of the present utility model;

FIG. 3 is a schematic diagram of a water bladder according to the present utility model;

FIG. 4 is a schematic diagram of a water bladder according to the present utility model;

the marks in the figure: 1. the blood pump, 2, first arterial tube, 3, arterial vessel one, 4, arterial vessel two, 5, second arterial tube, 6, hemodialysis unit, 7, connecting tube, 8, hemodialysis unit two, 9, first venous tube, 10, venous vessel one, 11, venous vessel two, 12, second venous tube, 13, water sac, 14, arterial vessel tube clamp one, 15, arterial vessel tube clamp two, 16, arterial vessel tube clamp three, 17, arterial vessel tube clamp four, 18, dialyzer tube clamp one, 19, dialyzer tube clamp two, 20, connecting tube clamp one, 21, connecting tube clamp two, 22, venous vessel tube clamp one, 23, venous vessel tube clamp two, 24, venous vessel tube clamp three, 25, venous vessel tube clamp four, 26, water inlet, 27, water outlet, 28, and circulating water supply device.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the following detailed description of the specific embodiments of the present utility model will be given with reference to the accompanying drawings.

As shown in fig. 1 to 4, a hemodialysis extracorporeal circulation line, including an arterial line, a hemodialysis machine, and a venous line;

the arterial pipeline comprises a first arterial tube 2, a first arterial pot 3, a second arterial pot 4 and a second arterial tube 5 which are arranged in parallel;

the front end of the first arterial tube 2 is connected with a patient, a blood pump tube is arranged on the first arterial tube 2, the first arterial tube 2 is connected with a blood pump 1 through the blood pump tube, the blood pump 1 is used for providing power and pumping blood into the first arterial tube 2 from the patient; the rear end of the first arterial tube 2 is Y-shaped, and two branches of the Y-shaped tube are respectively connected with inlets of the arterial kettle I3 and the arterial kettle II 4, so that the arterial kettle I3 and the arterial kettle II 4 are arranged in parallel;

the front end and the rear end of the second arterial tube 5 are both Y-shaped, two branches of the Y-shaped tube at the front end are respectively connected with the outlets of the arterial kettle I3 and the arterial kettle II 4, one branch of the Y-shaped tube at the rear end is connected with the inlet of the hemodialysis device 6, and the other branch is connected with the inlet of the connecting tube 7;

the venous pipeline comprises a first venous tube 9, a first venous pot 10, a second venous pot 11 and a second venous tube 12 which are arranged in parallel;

the front end and the rear end of the first intravenous tube 9 are both Y-shaped, one branch of the Y-shaped tube at the front end is connected with the outlet of the hemodialysis device 6, and the other branch is connected with the outlet of the connecting tube 7; two branches of the Y-shaped pipe at the rear end are respectively connected with inlets of the first venous pot 10 and the second venous pot 11, so that the first venous pot 10 and the second venous pot 11 are arranged in parallel;

the front end of the second intravenous tube 12 is Y-shaped, two branches of the Y-shaped tube are respectively connected with the outlets of the first intravenous pot 10 and the second intravenous pot 11, and the rear end of the Y-shaped tube is connected with a human body;

the water bags 13 are respectively arranged on the second arterial tube 5 and the first venous tube 9, so that the temperature of blood is kept at 36.5-37.5 ℃ to avoid coagulation in the pipeline.

Wherein the water bags 13 all comprise a water inlet 26, a water outlet 27 and a cavity bag body for containing water.

Further, the water bag 13 is made of elastic rubber, the structure of the water bag 13 can be as shown in fig. 3, the whole water bag is circular, a notch is arranged at the bottom, the water bag is directly clamped into the second arterial tube 5 or the first venous tube 9 through the notch, and the water inlet 26 and the water outlet 27 are respectively positioned at two sides of the notch; the water bag 13 may be an elongated hose, spirally wound around the second arterial tube 5 or the first venous tube 9, and the water inlet 26 and the water outlet 27 are respectively located at the front end and the tail end of the hose, as shown in fig. 4.

The water inlet 26 and the water outlet 27 are connected with a circulating water supply device 28; the circulating water supply device 28 comprises a water pump, a water tank and a water temperature adjusting device, wherein the water in the water tank is kept at 36.5-37.5 ℃ through the water temperature adjusting device, and then the water in the water tank is pumped into the water bag 13 through the water pump, so that the water circulation of the water bag 13 is kept, and the temperature is kept at 36.5-37.5 ℃.

Wherein, the front and back of the first arterial kettle 3, the second arterial kettle 4, the hemodialysis device 6, the connecting pipe 7, the first venous kettle 10 and the second venous kettle 11 are provided with pipe clamps for realizing the opening and closing of the first arterial kettle, the second arterial kettle, the hemodialysis device, the connecting pipe, the first venous kettle and the second venous kettle; the first arterial kettle pipe clamp 14 and the second arterial kettle pipe clamp 15 are respectively arranged in front of and behind the first arterial kettle 3 and are used for controlling the opening and closing of the first arterial kettle 3; the pipe clamps arranged in front and behind the arterial kettle II 4 are respectively an arterial kettle pipe clamp III 16 and an arterial kettle pipe clamp IV 17, and are used for controlling the opening and closing of the arterial kettle II 4; the front and back pipe clamps of the hemodialysis machine 6 are respectively a first pipe clamp 18 and a second pipe clamp 19 of the hemodialysis machine, and are used for controlling the opening and closing of the hemodialysis machine 6; the pipe clamps arranged in front and behind the connecting pipe 7 are a first connecting pipe clamp 20 and a second connecting pipe clamp 21 respectively, and are used for controlling the opening and closing of the connecting pipe 7; the first venous kettle 10 is provided with a first venous kettle pipe clamp 22 and a second venous kettle pipe clamp 23 at the front and back, and the first venous kettle 10 is used for controlling the opening and closing of the first venous kettle 10; the tube clamps arranged in front and behind the second venous pot 11 are respectively a third venous pot tube clamp 24 and a fourth venous pot tube clamp 25, and are used for controlling the opening and closing of the second venous pot 11.

Wherein, the connecting pipe 7 can be replaced by a second hemodialysis device 8 which is connected with the hemodialysis device 6 on the other branch in parallel; the front and back of the hemodialysis machine II 8 are also provided with pipe clamps, namely a dialyzer pipe clamp III and a dialyzer pipe clamp IV, which are used for realizing the opening and closing of the hemodialysis machine II 8.

Wherein, arterial kettle and venous kettle in all be equipped with the filter screen, the filter screen sets up in the inner face bottom of arterial kettle, can intercept the blood clot, avoid the blood clot that drops to get into the dialyzer, stop up the dialyzer, influence the dialysis efficiency of dialyzer. The filter screen is arranged at the bottom of the inner surface of the venous kettle, so that blood clots can be intercepted, and dangers caused by falling blood clots entering the human body are avoided.

The working principle and the using flow of the utility model are as follows:

1. and (2) mounting: the hemodialysis external circulation pipeline provided by the utility model is arranged according to the blood flow direction of a dialysis machine.

2. Preparation: before formal dialysis, all pipe clamps are opened, the whole pipeline is pre-filled with normal saline, air in the whole pipeline is discharged, and the liquid levels of the arterial kettle and the venous kettle are kept to be 2/3 full; checking the pipeline to ensure that the connection between the devices is correct, reliable and firm; the circulation water supply device 28 is started to keep the water in the water tank at 36.5-37.5 ℃, the water in the water tank is pumped into the water bag 13 by the water pump, the water circulation of the water bag 13 is kept, and the temperature is kept at 36.5-37.5 ℃.

3. Dialysis work: closing an arterial kettle pipe clamp III 16 and an arterial kettle pipe clamp IV 17, closing a connecting pipe clamp I20 and a connecting pipe clamp II 21, closing a venous kettle pipe clamp III 24 and a venous kettle pipe clamp IV 25 to ensure that the arterial kettle I3, the hemodialysis machine 6 and the venous kettle I10 are communicated and unobstructed, starting to purify blood of a patient, pumping the blood out of the patient through a blood pump 1, inputting the blood into the arterial kettle I3 through a first arterial tube 2, inputting the blood into the hemodialysis machine 6 through a second arterial tube 5, outputting the blood into the venous kettle I10 through the first venous tube 9 after the blood in the hemodialysis machine 6 is purified, outputting the blood back to the patient through the second venous tube 12, and thus completing the purification of the blood of the patient.

When any one of the arterial kettle I3, the hemodialysis machine 6 and the venous kettle I10 is blocked or is about to be blocked, the pipe clamps at the two ends of the arterial kettle I are closed, the pipe clamps at the front end and the rear end of the device connected in parallel with the arterial kettle I are opened in time, namely the pipe clamps at the front end and the rear end of the arterial kettle II 4, the connecting pipe 7 (or the hemodialysis machine II 8) and the venous kettle II 11 are quickly switched to a new passage, so that dialysis treatment is continued or blood is returned. Specific plugging is divided into the following specific cases:

case one: when the first arterial kettle 3 is blocked or is about to be blocked, the pipe clamps at the front end and the rear end of the second arterial kettle 4, namely the third arterial kettle pipe clamp 16 and the fourth arterial kettle pipe clamp 17, are rapidly opened, and meanwhile, the pipe clamps at the front end and the rear end of the first arterial kettle 3, namely the first arterial kettle pipe clamp 14 and the second arterial kettle pipe clamp 15 are clamped, so that blood is input into the standby second arterial kettle 11, a new unblocked passage is formed, and dialysis treatment is continuously carried out or blood is returned.

And a second case: if the pipeline is that the hemodialysis device 6 and the connecting pipe 7 are connected in parallel (as shown in fig. 1), when the hemodialysis device 6 is blocked or is about to be blocked, the first pipe clamp 20 and the second pipe clamp 21 which are the pipe clamps at the front end and the rear end of the connecting pipe 7 can be quickly opened, and meanwhile, the first pipe clamp 18 and the second pipe clamp 19 which are the pipe clamps at the front end and the rear end of the hemodialysis device 6 are closed, so that blood is input into the connecting pipe 7 for blood feedback.

Case three: if the pipeline is formed by connecting the hemodialysis machine 6 and the hemodialysis machine II 8 in parallel (as shown in fig. 2), when the hemodialysis machine 6 is blocked or is about to be blocked, the pipe clamps at the front end and the rear end of the hemodialysis machine II 8, namely the dialyzer pipe clamp III and the dialyzer pipe clamp IV, are rapidly opened, and the pipe clamps at the front end and the rear end of the hemodialysis machine 6, namely the dialyzer pipe clamp I18 and the dialyzer pipe clamp II 19 are clamped, so that a new smooth passage is formed, and the dialysis treatment is continued.

Case four: when the first venous pot 10 is blocked or is about to be blocked, the pipe clamps at the front end and the rear end of the second venous pot 11, namely the third venous pot pipe clamp 24 and the fourth venous pot pipe clamp 25, can be rapidly opened, and the pipe clamps at the front end and the rear end of the first venous pot 10, namely the first venous pot pipe clamp 22 and the second venous pot pipe clamp 23 are clamped, so that a new smooth passage is formed, and dialysis treatment is continuously carried out or blood is returned.

In the application process, the utility model can form a new passage by rapidly switching the pipelines through the pipe clamps arranged at the front end and the rear end of the parallel device according to the actual clinical use condition, so that the dialysis can be continued or blood is returned.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. An extracorporeal circulation circuit for hemodialysis, comprising an arterial circuit, a hemodialysis device and a venous circuit, characterized in that: the arterial pipeline comprises a first arterial tube (2), a first arterial pot (3), a second arterial pot (4) and a second arterial tube (5) which are arranged in parallel; the front end of the first arterial tube (2) is connected with a patient, the rear end of the first arterial tube is Y-shaped, and two branches of the Y-shaped tube are respectively connected with inlets of the first arterial tube (3) and the second arterial tube (4), so that the first arterial tube (3) and the second arterial tube (4) are arranged in parallel; the front end and the rear end of the second arterial tube (5) are Y-shaped, two branches of the Y-shaped tube at the front end are respectively connected with the outlets of the arterial kettle I (3) and the arterial kettle II (4), one branch of the Y-shaped tube at the rear end is connected with the inlet of the hemodialysis device (6), and the other branch is connected with the inlet of the connecting tube (7); the venous pipeline comprises a first venous tube (9), a first venous pot (10), a second venous pot (11) and a second venous tube (12) which are arranged in parallel; the front end and the rear end of the first intravenous tube (9) are Y-shaped, one branch of the Y-shaped tube at the front end is connected with the outlet of the hemodialysis device (6), and the other branch is connected with the outlet of the connecting tube (7); two branches of the Y-shaped pipe at the rear end are respectively connected with inlets of the first venous pot (10) and the second venous pot (11), so that the first venous pot (10) and the second venous pot (11) are arranged in parallel; the front end of the second intravenous tube (12) is Y-shaped, two branches of the Y-shaped tube are respectively connected with the outlets of the first intravenous pot (10) and the second intravenous pot (11), and the rear end of the Y-shaped tube is connected with a human body; water bags (13) are respectively arranged on the second arterial tube (5) and the first venous tube (9).

2. The hemodialysis extracorporeal circulation circuit of claim 1, wherein: the water bag (13) comprises a water inlet (26), a water outlet (27) and a cavity bag body for containing water; the water inlet (26) and the water outlet (27) are connected with a circulating water supply device (28).

3. The hemodialysis extracorporeal circulation circuit of claim 1, wherein: the front and rear parts of the arterial kettle I (3), the arterial kettle II (4), the hemodialysis device (6), the connecting pipe (7), the venous kettle I (10) and the venous kettle II (11) are provided with pipe clamps; the first arterial kettle (3) and the second arterial kettle (4) are provided with a first arterial kettle pipe clamp (14), a second arterial kettle pipe clamp (15), a third arterial kettle pipe clamp (16) and a fourth arterial kettle pipe clamp (17) in front and behind; the tube clamps arranged in front and behind the hemodialysis device (6) are a first dialyzer tube clamp (18) and a second dialyzer tube clamp (19) respectively; the pipe clamps arranged in front and behind the connecting pipe (7) are respectively a first connecting pipe clamp (20) and a second connecting pipe clamp (21); the first venous kettle (10) and the second venous kettle (11) are provided with a first venous kettle pipe clamp (22), a second venous kettle pipe clamp (23), a third venous kettle pipe clamp (24) and a fourth venous kettle pipe clamp (25) in front and back.

4. The hemodialysis extracorporeal circulation circuit of claim 1, wherein: the connecting pipe (7) can be replaced by a second hemodialysis device (8) which is connected with the hemodialysis device (6) on the other branch in parallel.

5. The hemodialysis extracorporeal circulation circuit of claim 1, wherein: the first arterial kettle (3) and the second arterial kettle (4) are respectively provided with a filter screen.

6. The hemodialysis extracorporeal circulation circuit of claim 1, wherein: the first venous pot (10) and the second venous pot (11) are respectively provided with a filter screen.