Hemodialysis extracorporeal circulation vein pipeline with replaceable vein pot

Abstract

The utility model belongs to the technical field of medical equipment, and particularly relates to a hemodialysis extracorporeal circulation vein pipeline with a replaceable vein pot. The two ends of the vein pot are connected with a vein circulation pipeline a with a double-layer threaded connector a and a vein circulation pipeline b with a double-layer threaded connector b respectively. A dialyzer connector is arranged at the other end of the vein circulation pipeline a, a threaded connector is arranged at the other end of the vein circulation pipeline b, and a branch pipe a and a branch pipe b are arranged at the upper end of the vein pot and communicated with an inner cavity of the vein pot. The other end of the branch pipe a is connected with a vein sensor protector; a medicine pushing opening is formed in the other end of the branch pipe b, and a rotating joint is arranged on the medicine pushing opening; and a sampling joint is arranged on the venous circulation pipeline a and is arranged between the dialyzer joint and the clipping device. According to the technical scheme, a patient does not need to stop hemodialysis passively, blood loss of the patient is reduced to the maximum extent, and a better clinical curative effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a hemodialysis extracorporeal circulation venous pipeline capable of replacing a venous pot. Background Art

[0002] Hemodialysis - uses the principles of diffusion and convection to remove metabolic waste, harmful substances and excess water from the blood. It is one of the most commonly used renal replacement therapies for patients with end-stage renal disease and can also be used to treat drug or toxin poisoning.

[0003] Hemodialysis includes arterial lines, dialyzers and venous lines. The venous pot is an important part of the venous line, and its main function is to intercept blood clots and air.

[0004] During current clinical hemodialysis treatment, when the venous pot in the venous line is clogged by blood coagulation, the blood in the arterial line cannot flow back to the patient's body in a sealed manner, causing blood loss in the patient's body and making it impossible to continue normal dialysis. The existing hemodialysis extracorporeal circulation pipeline is an integrated design. If the venous pot is clogged by blood coagulation, the entire extracorporeal circulation pipeline needs to be replaced or dialysis needs to be stopped. If the entire extracorporeal circulation pipeline is replaced, the cost is too high, causing a medical burden on the patient. At the same time, the replacement process is complicated and time-consuming. If dialysis is terminated, it will lead to insufficient dialysis, failure to achieve clinical therapeutic effect, and worsening of the patient's condition. Utility Model Content

[0005] The utility model provides a hemodialysis extracorporeal circulation venous line that can replace a venous pot, and the specific technical scheme is as follows:

[0006] A hemodialysis extracorporeal circulation venous line with a replaceable venous pot, comprising a venous sensor protector, a clamp closure, a double-layer threaded interface a, a double-layer threaded interface b, a sampling connector, a dialyzer connector, a venous pot and a blood filter;

[0007] The venous pot is in the shape of an inverted cone, with connecting pipes provided on both upper and lower end surfaces, and one end of the connecting pipe passes through both ends of the venous pot, and the other end of the connecting pipe is provided with a threaded section;

[0008] A circular card table is provided at the lower end of the inner part of the venous pot cavity, and the blood filter is arranged on the card table of the venous pot cavity;

[0009] The threaded section of the connecting pipe at the upper end of the venous pot is connected to the venous circulation pipeline a with a double-layer threaded interface a;

[0010] The threaded section of the connecting pipe at the lower end of the venous pot is connected to the venous circulation pipeline b with a double-layer threaded interface b;

[0011] The other end of the venous circulation pipeline a is provided with a dialyzer connector for connecting to the venous end of the dialyzer;

[0012] The other end of the venous circulation pipeline b is provided with a threaded interface for connecting the tail end of the venous puncture needle on the patient;

[0013] The connecting pipe at the upper end of the venous pot is provided with mounting holes on both sides, and one end of the branch pipe a and the branch pipe b are both inserted into the mounting holes and connected with the inner cavity of the venous pot;

[0014] The other end of the branch pipe a is connected to a venous sensor protector, and is connected to a pressure sensor device of a hemodialysis machine through the venous sensor protector;

[0015] The other end of the branch pipe b is set as a medicine pushing port, and a rotating joint is provided on the medicine pushing port;

[0016] The connecting pipe a, connecting pipe b, venous circulation pipeline a, venous circulation pipeline b, branch pipe a and branch pipe b are all provided with clamps, and the clamps are movably connected to the pipelines;

[0017] The venous circulation pipeline a is provided with a sampling connector, which is arranged between the dialyzer connector and the clamp.

[0018] The preferred embodiment of the hemodialysis extracorporeal circulation venous line with a replaceable venous pot is that the blood filter is in a cone barrel shape, consisting of a polypropylene frame and a nylon mesh, and the connecting end of the blood filter is adapted to the circular card table in the cavity of the venous pot.

[0019] The preferred embodiment of the hemodialysis extracorporeal circulation venous line with a replaceable venous pot is that the double-layer threaded interface a and the double-layer threaded interface b are detachable double-layer threaded interfaces; and the connecting pipe thread section is adapted to the double-layer threaded interface a and the double-layer threaded interface b, and the inner wall has no gap.

[0020] The preferred embodiment of the hemodialysis extracorporeal circulation venous line with a replaceable venous pot is that the drug push port on the branch tube b can be connected to a syringe for temporary drug administration during the hemodialysis process.

[0021] The preferred embodiment of the hemodialysis extracorporeal circulation venous pipeline with a replaceable venous pot is that the connecting tube a, connecting tube b, venous circulation pipeline a, venous circulation pipeline b, branch pipe a, branch pipe b are all made of medical grade soft polyvinyl chloride; the venous pot, double-layer threaded interface a, double-layer threaded interface b, venous sensor protector, and clamp are made of polyvinyl chloride, polypropylene, polyethylene, acrylonitrile-butadiene-styrene, or polycarbonate.

[0022] The preferred embodiment of the hemodialysis extracorporeal circulation venous line with a replaceable venous pot is that a filter membrane with a small pore size of 0.2 μm is provided in the venous sensor protector.

[0023] The preferred embodiment of the hemodialysis extracorporeal circulation venous line with a replaceable venous pot is that an inwardly-retracted baffle is provided along the inner wall of the drip pot cavity at the upper end of the venous pot, and the baffle extends vertically below the connecting tube at the upper end of the venous pot to prevent excessive bubbles and buffer the falling of blood.

[0024] By replacing the extracorporeal venous circuit of the hemodialysis venous kettle, when the venous kettle is blocked by blood coagulation, you only need to replace the detachable double-layer threaded interface and clamp at both ends of the venous kettle with a new one, without replacing the entire extracorporeal dialysis circuit.

[0025] Beneficial Effects

[0026] The technical solution of the utility model solves the disadvantages of the integrated extracorporeal circulation pipeline in the hemodialysis device as a starting point, including the complex process of replacing the overall pipeline after the venous pot is blocked by blood coagulation, too long consumption time, high cost and passive termination of dialysis.

[0027] When the venous kettle is clogged by blood coagulation, the present technical solution only needs to replace one component of the venous kettle to replace the traditional method of replacing the entire set of hemodialysis extracorporeal circulation pipelines, which can greatly reduce the replacement cost of the hemodialysis extracorporeal circulation pipelines, reduce the consumption of medical consumables, reduce the waste of medical resources, and save hemodialysis costs for patients; at the same time, it simplifies the operation process of replacing the entire extracorporeal circulation pipeline, making it easier for hemodialysis nurses to operate and saving time;

[0028] Setting clamps at multiple locations on the pipeline can ensure the smooth completion of the process of replacing the intravenous bottle to the greatest extent, increasing the safety and smoothness of the replacement process;

[0029] The hemodialysis extracorporeal circulation circuit of the replaceable venous pot device of the present invention can reduce the blood loss in the patient's body. After replacing the venous pot, the patient can continue to complete the remaining hemodialysis process, so that the patient does not have to passively stop hemodialysis, thereby minimizing the patient's blood loss and achieving better clinical efficacy. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The present invention is a schematic diagram of the structure of a hemodialysis extracorporeal circulation venous pipeline with a replaceable venous pot.

[0031] Figure 1 In: 1-venous sensor protector, 2-clamp, 3-double-layer threaded interface a, 4-double-layer threaded interface b, 5-sampling connector, 6-dialyzer connector, 7-venous pot, 8-blood filter, 9-connecting tube, 10-venous circulation line a, 11-venous circulation line b, 12-threaded interface, 13-dialyzer, 14-patient, 15-branch a, 16-branch b, 17-swivel joint, 18-baffle. DETAILED DESCRIPTION

[0032] The utility model is further described below in conjunction with the drawings in the utility model, but it should not be understood that the above-mentioned subject scope of the utility model is limited to the following embodiments. Without departing from the above-mentioned ideas of the utility model, various substitutions and changes are made according to the common technical knowledge and customary means in the field, which should be included in the protection scope of the utility model.

[0033] A hemodialysis extracorporeal circulation venous line with a replaceable venous pot, comprising a venous sensor protector 1, a clamp 2, a double-layer threaded interface a3, a double-layer threaded interface b4, a sampling connector 5, a dialyzer connector 6, a venous pot 7 and a blood filter 8;

[0034] The venous pot 7 is in the shape of an inverted cone, and both upper and lower end surfaces are provided with connecting pipes 9, and one end of the connecting pipe 9 passes through both ends of the venous pot 7, and the other end of the connecting pipe 9 is provided with a threaded section;

[0035] A circular card table is provided at the lower end of the cavity of the venous pot 7, and a blood filter 8 is arranged on the card table of the cavity of the venous pot 7;

[0036] The threaded section of the connecting pipe 9 at the upper end of the venous pot 7 is connected to the venous circulation pipeline a10 with a double-layer threaded interface a3;

[0037] The threaded section of the connecting pipe 9 at the lower end of the venous pot 7 is connected to the venous circulation pipeline b11 with a double-layer threaded interface b4;

[0038] The other end of the venous circulation pipeline a10 is provided with a dialyzer connector 6 for connecting to the venous end of the dialyzer 13;

[0039] The other end of the venous circulation pipeline b11 is provided with a threaded interface 12 for connecting the tail end of the venous puncture needle on the patient 14;

[0040] The connecting tube 9 at the upper end of the venous pot 7 is provided with mounting holes on both sides, and one end of the branch pipe a15 and the branch pipe b16 are inserted into the mounting holes and are connected with the inner cavity of the venous pot 7;

[0041] The other end of the branch pipe a15 is connected to the venous sensor protector 1, and is connected to the pressure sensor device of the hemodialysis machine through the venous sensor protector 1;

[0042] The other end of the branch pipe b16 is set as a medicine pushing port, and a rotating joint 17 is provided on the medicine pushing port;

[0043] The connecting pipe 9, the venous circulation pipe a10, the venous circulation pipe b11, the branch pipe a15 and the branch pipe b16 are all provided with a clamp 2, and the clamp 2 is movably connected to the pipes;

[0044] The venous circulation pipeline a10 is provided with a sampling connector 5 , which is arranged between the dialyzer connector 6 and the clamp 2 .

[0045] The blood filter 8 is in a cone barrel shape, consisting of a polypropylene frame and a nylon mesh, and the connecting end of the blood filter 8 is adapted to the circular card table in the cavity of the venous pot 7.

[0046] The double-layer threaded interface a3 and the double-layer threaded interface b4 are detachable double-layer threaded interfaces; and the threaded section of the connecting pipe 9 is adapted to the double-layer threaded interface a3 and the double-layer threaded interface b4, and the inner wall has no gap.

[0047] The drug pushing port on the branch tube b16 can be connected to a syringe for temporary drug administration during hemodialysis.

[0048] The connecting tube 9, venous circulation pipeline a10, venous circulation pipeline b11, branch pipe a15, and branch pipe b16 are all made of medical grade soft polyvinyl chloride; the venous pot 7, double-layer threaded interface a3, double-layer threaded interface b4, venous sensor protector 1, and clamp 2 are made of polyvinyl chloride or polypropylene or polyethylene or acrylonitrile-butadiene-styrene or polycarbonate.

[0049] The venous sensor protector 1 is provided with a filter membrane with a small pore size of 0.2 μm.

[0050] An inwardly retracted baffle 18 is provided along the inner wall of the drip pot cavity at the upper end of the venous pot 7, and the baffle 18 extends vertically below the connecting tube 9 at the upper end of the venous pot 7 to prevent excessive bubbles and buffer the falling of blood.

[0051] By replacing the venous pot 7 for hemodialysis extracorporeal venous circulation, when the venous pot 7 is blocked by blood coagulation, it is only necessary to replace the detachable double-layer threaded interface a, double-layer threaded interface b and clamp 2 connected at both ends of the venous pot 9 with a new venous pot 7 without replacing the entire set of extracorporeal dialysis circulation pipeline.

Claims

1. A hemodialysis extracorporeal circulation venous line with a replaceable venous pot, characterized in that: It includes a venous sensor protector, a clamp, a double-layer threaded interface a, a double-layer threaded interface b, a sampling connector, a dialyzer connector, a venous pot and a blood filter; The venous pot is in the shape of an inverted cone, with connecting pipes provided on both upper and lower end surfaces, and one end of the connecting pipe passes through both ends of the venous pot, and the other end of the connecting pipe is provided with a threaded section; A circular card table is provided at the lower end of the inner part of the venous pot cavity, and the blood filter is arranged on the card table of the venous pot cavity; The threaded section of the connecting pipe at the upper end of the venous pot is connected to the venous circulation pipeline a with a double-layer threaded interface a; The threaded section of the connecting pipe at the lower end of the venous pot is connected to the venous circulation pipeline b with a double-layer threaded interface b; The other end of the venous circulation pipeline a is provided with a dialyzer connector for connecting to the venous end of the dialyzer; The other end of the venous circulation pipeline b is provided with a threaded interface for connecting the tail end of the venous puncture needle on the patient; The connecting pipe at the upper end of the venous pot is provided with mounting holes on both sides, and one end of the branch pipe a and the branch pipe b are both inserted into the mounting holes and connected with the inner cavity of the venous pot; The other end of the branch pipe a is connected to a venous sensor protector, and is connected to a pressure sensor device of a hemodialysis machine through the venous sensor protector; The other end of the branch pipe b is set as a medicine pushing port, and a rotating joint is provided on the medicine pushing port; The connecting pipe a, connecting pipe b, venous circulation pipeline a, venous circulation pipeline b, branch pipe a and branch pipe b are all provided with clamps, and the clamps are movably connected to the pipelines; The venous circulation pipeline a is provided with a sampling connector, which is arranged between the dialyzer connector and the clamp.

2. The hemodialysis extracorporeal circulation venous line with a replaceable venous pot according to claim 1, characterized in that: The blood filter net is in a cone barrel shape, and is composed of a polypropylene frame and a nylon screen, and the connecting end of the blood filter net is adapted to the circular card table in the cavity of the venous pot.

3. The hemodialysis extracorporeal circulation venous line with a replaceable venous pot according to claim 1, characterized in that: The double-layer threaded interface a and the double-layer threaded interface b are detachable double-layer threaded interfaces; and the connecting pipe thread section is adapted to the double-layer threaded interface a and the double-layer threaded interface b, and the inner wall has no gap.

4. The hemodialysis extracorporeal circulation venous line with a replaceable venous pot according to claim 1, characterized in that: The drug pushing port on the branch tube b can be connected to a syringe for temporary drug administration during hemodialysis.

5. The hemodialysis extracorporeal circulation venous line with a replaceable venous pot according to claim 1, characterized in that: The connecting pipe a, connecting pipe b, venous circulation pipeline a, venous circulation pipeline b, branch pipe a, branch pipe b are all made of medical grade soft polyvinyl chloride; the intravenous pot, double-layer threaded interface a, double-layer threaded interface b, intravenous sensor protector, and clamp are made of polyvinyl chloride or polypropylene or polyethylene or acrylonitrile-butadiene-styrene or polycarbonate.

6. The hemodialysis extracorporeal circulation venous line with a replaceable venous pot according to claim 1, characterized in that: The vein sensor protector is provided with a filter membrane with a small pore size of 0.2 μm.

7. The hemodialysis extracorporeal circulation venous line with a replaceable venous pot according to claim 1, characterized in that: An inwardly retracted baffle is provided along the inner wall of the drip pot cavity at the upper end of the venous pot, and the baffle extends vertically below the connecting tube at the upper end of the venous pot to prevent excessive bubbles and buffer the falling of blood.

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