Continuous blood purification pipeline

Abstract

The utility model discloses a continuous blood purification pipeline which comprises an artery pot, a dialyzer and a vein pot, a liquid inlet pipe of the artery pot and a connecting header pipe are detachably installed through a connecting mechanism, and one end of the connecting header pipe is connected with a heparin pipeline and a blood guiding assembly through a three-way valve. A liquid outlet pipe of the artery pot is connected with a liquid inlet pipe of the dialyzer through a connecting mechanism and a dialysis blood inlet pipe, a liquid outlet pipe of the dialyzer is connected with a dialysis blood outlet pipe, one end of the dialysis blood inlet and outlet pipe is connected with a liquid inlet pipe of the vein pot through a connecting mechanism, and a liquid outlet pipe of the vein pot is detachably connected with the feedback pipeline through a connecting mechanism. The connecting mechanism comprises a connecting sleeve fixedly connected to the outer wall of the arterial jug liquid inlet pipe in a sleeving mode, a connector detachably installed on the connecting sleeve and buckles arranged on the two sides of the connecting sleeve. According to the utility model, through a simplified dismounting mechanism and enhanced sealing performance, the maintenance efficiency and safety of the blood purification system are effectively improved, and the pipeline replacement time and the treatment interruption time of a patient are reduced.

Description

Technical Field

[0001] The utility model belongs to the field of medical auxiliary equipment, and in particular relates to a continuous blood purification pipeline. Background Art

[0002] Continuous blood purification is an important medical treatment technology, which is widely used in the clinic to purify blood in the treatment of acute and chronic renal failure, poisoning, autoimmune diseases, etc. This technology simulates the filtering function of the kidneys to remove metabolic waste, toxins and excess water from the blood, while retaining beneficial components to maintain the stability of the body environment.

[0003] Traditional arterial and venous pots are not designed to be quickly disassembled, which means that when a clot is blocked, cleaning or replacing the affected parts requires more time and labor, reducing maintenance efficiency. When the system has problems such as clot blockage, it takes longer to deal with it, affecting the continuity and safety of patient treatment.

[0004] Therefore, in order to solve the above technical problems, the utility model provides a continuous blood purification pipeline. Utility Model Content

[0005] In order to solve the above technical problems, the utility model designs a continuous blood purification pipeline to effectively improve the maintenance efficiency and safety of the blood purification system, reduce pipeline cleaning and patient treatment interruption time.

[0006] In order to achieve the above-mentioned technical effect, the utility model is realized through the following technical scheme: a continuous blood purification pipeline, including an arterial pot, a dialyzer, and a venous pot, characterized in that the liquid inlet pipe of the arterial pot is detachably installed from the connecting main pipe through a connecting mechanism, one end of the connecting main pipe is connected to the heparin pipeline and the blood drawing component through a three-way valve, the liquid outlet pipe of the arterial pot is connected to the liquid inlet pipe of the dialyzer through a connecting mechanism and a dialysis inlet blood vessel, the liquid outlet pipe of the dialyzer is connected to the dialysis outlet blood vessel, one end of the dialysis inlet and outlet blood vessels is connected to the liquid inlet pipe of the venous pot through a connecting mechanism, and the liquid outlet pipe of the venous pot is detachably connected to the return pipeline through a connecting mechanism; the connecting mechanism includes a connecting sleeve fixedly sleeved on the outer wall of the liquid inlet pipe of the arterial pot, a connecting head detachably installed on the connecting sleeve, and buckles arranged on both sides of the connecting sleeve.

[0007] Furthermore, one end of the heparin pipeline is fixedly connected to a heparin pump.

[0008] Furthermore, the blood drainage assembly includes a rear pump tube fixedly connected to the three-way valve, a blood pump fixedly connected to one end of the rear pump tube, a blood drainage tube fixedly connected to the other end of the blood drainage tube, and a pre-pump arterial pressure detector arranged on the blood drainage tube.

[0009] Furthermore, the arterial kettle is provided with a post-pump arterial pressure detector, and the venous kettle is provided with a venous pressure detector.

[0010] Furthermore, the return pipeline is provided with an exhaust component and an air detection clamp, and the air detection clamp is arranged on the pipeline behind the exhaust component.

[0011] Furthermore, arc-shaped sliding grooves are symmetrically arranged on both sides of the connecting sleeve wall, a plurality of springs are fixedly distributed on the bottom end of the connecting sleeve, and an annular pressure plate is fixedly connected to the springs.

[0012] Furthermore, the bottom end of the connecting head is fixedly connected to one end of the connecting main pipe, a waterproof rubber ring layer is provided on the connecting head and the connecting head is sleeved inside the liquid inlet pipe of the arterial pot, the waterproof rubber ring layer is interference fit with the inside of the liquid inlet pipe of the arterial pot, and telescopic limit rods installed in cooperation with the arc-shaped slide groove are symmetrically arranged on both sides of the connecting main pipe below the connecting head, and a clamping block is provided at the telescopic end of the telescopic limit rod, and the clamping block is removably installed on the buckle.

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

[0014] When replacing an arterial or venous bottle blocked by clots, the operator unlocks the connection by pressing the telescopic limit rod and easily removes the connector using the power of the internal spring. When reinstalling or replacing parts, the connector slides smoothly along the arc-shaped slot by aligning and pressing the telescopic limit rod, and the waterproof rubber ring layer ensures the sealing. Finally, when the telescopic limit rod reaches the end of the slot, the block is automatically locked in the buckle to complete the installation. This design significantly improves the maintenance efficiency and safety of the blood purification system, while reducing the interruption time of patient treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are 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 creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall structure of the connection mechanism of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the connection mechanism of the utility model in another direction;

[0019] Figure 4 It is a schematic diagram of the internal structure of the connection mechanism of the utility model;

[0020] Figure 5 This utility model Figure 4 A magnified view of the structure in the middle;

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Arterial pot; 11. Post-pump arterial pressure detector; 2. Dialyzer; 21. Dialysis inlet blood vessel; 22. Dialysis outlet blood vessel; 3. Venous pot; 31. Venous pressure detector; 4. Connecting mechanism; 411. Arc slide; 412. Spring; 413. Annular pressure plate; 41. Connecting sleeve; 42. Connecting head; 421. Waterproof rubber ring layer; 422. Telescopic limit rod; 423. Block; 43. Buckle; 5. Connecting main pipe; 6. Heparin pipeline; 61. Heparin pump; 7. Blood drawing assembly; 71. Post-pump tube; 72. Blood pump; 73. Blood drawing blood vessel; 74. Pre-pump arterial pressure detector; 8. Return pipeline; 81. Air detection clamp. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] See also Figures 1 to 5 As shown, a continuous blood purification pipeline includes an arterial pot 1, a dialyzer 2, and a venous pot 3, characterized in that the inlet pipe of the arterial pot 1 is detachably mounted with the connecting main pipe 5 through a connecting mechanism 4, one end of the connecting main pipe 5 is connected to the heparin pipeline 6 and the blood drawing assembly 7 through a three-way valve, the outlet pipe of the arterial pot 1 is connected to the inlet pipe of the dialyzer 2 through the connecting mechanism 4 and the dialyzer inlet blood vessel 21, the outlet pipe of the dialyzer 2 is connected to the dialyzer outlet blood vessel 22, one end of the dialyzer inlet and outlet blood vessels 22 is connected to the inlet pipe of the venous pot 3 through the connecting mechanism 4, and the outlet pipe of the venous pot 3 is detachably connected with the return pipeline 8 through the connecting mechanism 4. The connecting mechanism 4 includes a connecting sleeve 41 fixedly sleeved on the outer wall of the inlet pipe of the arterial pot 1, a connector 42 detachably mounted on the connecting sleeve 41, and buckles 43 arranged on both sides of the connecting sleeve 41.

[0026] One end of the heparin pipeline 6 is fixedly connected to a heparin pump 61 .

[0027] The blood drawing assembly 7 includes a post-pump tube 71 fixedly connected to the three-way valve, a blood pump 72 fixedly connected to one end of the post-pump tube 71 , a blood drawing blood tube 73 fixedly connected to the other end of the blood drawing blood tube 72 , and a pre-pump arterial pressure detector 74 arranged on the blood drawing blood tube 73 .

[0028] The arterial pot 1 is provided with a post-pump arterial pressure detector 11 , and the venous pot 3 is provided with a venous pressure detector 31 .

[0029] The return pipeline 8 is provided with an exhaust member 82 and an air detection clamp 81, and the air detection clamp 81 is arranged on the pipeline behind the exhaust member 82. The exhaust member 82 can use an exhaust device such as an exhaust-type drip pot, an infusion tube exhaust member, etc. to discharge the gas in the return pipeline 8. The mechanism of the exhaust-type drip pot is a drip pot structure, and an exhaust pipe is provided at the upper end of the drip pot, and a waterproof breathable membrane is provided inside the exhaust pipe. When giving blood transfusion to the patient, the drip pot is kept vertical, and the blood flows into the drip pot and then flows into the return pipeline 8, and the gas gathers at the upper end of the drip pot. Under the squeezing of the blood, the gas is discharged from the drip pot through the waterproof breathable membrane. The air detection clamp 81 is an infusion alarm. When there is air in the return pipeline 8, the air detection clamp 81 will alarm.

[0030] Arc-shaped sliding grooves 411 are symmetrically arranged on both sides of the sleeve wall of the connecting sleeve 41 . A plurality of springs 412 are fixedly distributed at the bottom end of the connecting sleeve 41 , and an annular pressing plate 413 is fixedly connected to the springs 412 .

[0031] The bottom end of the connecting head is fixedly connected to one end of the connecting main pipe, a waterproof rubber ring layer is provided on the connecting head and the connecting head is sleeved inside the liquid inlet pipe of the arterial pot, the waterproof rubber ring layer is interference fit with the inside of the liquid inlet pipe of the arterial pot, telescopic limit rods installed in cooperation with the arc-shaped slide groove are symmetrically arranged on both sides of the connecting main pipe below the connecting head, a clamping block is provided at the telescopic end of the telescopic limit rod, and the clamping block is removably installed on the buckle.

[0032] Example 2

[0033] The operating principle of the utility model:

[0034] The clots in the arterial and venous pots of the Fresenius dialysis machine are one of the problems that are easily encountered during the dialysis process. These parts are usually not designed to be disassembled separately, which also brings some problems: the non-detachable pipe connection makes it more difficult to maintain the entire pipe when blockage occurs or cleaning is required. When there is a problem with the pipe, it may be necessary to replace the entire blood purification pipe system, not just the affected part, which not only increases costs, but also prolongs the time patients wait for treatment, affecting the treatment effect and safety of patients.

[0035] In view of the above problems, the utility model designs the installation of the pipeline. The inlet pipe of the arterial pot 1 is detachably installed from the connecting main pipe 5 through the connecting mechanism 4, the outlet pipe of the arterial pot 1 is connected to the inlet pipe of the dialyzer 2 through the connecting mechanism 4 and the dialysis inlet blood vessel 21, one end of the dialysis inlet and outlet blood vessels 22 is connected to the inlet pipe of the venous pot 3 through the connecting mechanism 4, and the outlet pipe of the venous pot 3 is detachably connected to the return pipe 8 through the connecting mechanism 4.

[0036] Take the disassembly and installation of the liquid inlet pipe of the arterial pot 1 through the connecting mechanism 4 and the connecting main pipe 5 as an example: the connecting mechanism 4 includes a connecting sleeve 41 fixedly sleeved on the outer wall of the liquid inlet pipe of the arterial pot 1, a connecting head 42 detachably installed on the connecting sleeve 41, and buckles 43 arranged on both sides of the connecting sleeve 41. The connecting sleeve 41 has arc-shaped slide grooves 411 symmetrically arranged on both sides of the sleeve wall, and a plurality of springs 412 are fixedly distributed at the bottom end of the inner part of the connecting sleeve 41, and an annular pressing plate 413 is fixedly connected to the spring 412. The bottom end of the connecting head 42 is fixedly connected to one end of the connecting main pipe 5, and the connecting head 42 is provided with a waterproof rubber ring layer 421 and the connecting head 42 can be sleeved inside the liquid inlet pipe of the arterial pot 1. The connecting main pipe 5 below the connecting head 42 is symmetrically provided with telescopic limit rods 422 installed in cooperation with the arc-shaped slide grooves 411 on both sides, and the telescopic end of the telescopic limit rod 422 is provided with a clamping block 423, and the clamping block 423 is detachably installed on the buckle 43. When the clotted arterial pot 1 needs to be replaced, the operator first clamps the arterial pot 1 liquid inlet pipe near the connecting mechanism 4 and the connecting main pipe 5 near the connecting mechanism 4 with a clamp to prevent blood from flowing out of the pipe opening when replacing the arterial pot. The operator connects one end of the dialysis inlet and outlet blood vessels 22 to the liquid inlet pipe of the venous pot 3 through the connecting mechanism 4, and the liquid outlet pipe of the venous pot 3 is detachably connected to the return pipe 8 through the connecting mechanism 4.

[0037] The operator presses the telescopic limit rods 422 on both sides by hand, and after the telescopic limit rods 422 are compressed and contracted, the block 423 on the telescopic limit rods 422 is separated from the buckle 43. At this time, the annular pressure plate 413 inside the connecting sleeve 41 will exert an upward thrust on the telescopic limit rod 422 under the rebound effect of the spring 412, making it convenient for the operator to slide the telescopic limit rod 422 out of the arc-shaped slide groove 411, thereby separating the connecting main pipe 5 from the liquid inlet pipe of the artery pot 1.

[0038] Then, the related components are replaced, and the telescopic limit rods 422 on both sides of the connector 42 are aligned with the interface of the arc-shaped slide groove 411 and pressed down. The telescopic limit rods 422 will slide along the arc-shaped slide groove 411. At this time, the connector 42 will be inserted into the liquid inlet pipe of the artery pot 1 as the telescopic limit rods 422 move. A waterproof rubber ring layer 421 is provided on the connector 42, and the connector 42 is sleeved inside the liquid inlet pipe of the artery pot 1. The waterproof rubber ring layer 421 and the inside of the liquid inlet pipe of the artery pot 1 are interference fit, so the connector 42 will be stably fixed inside the liquid inlet pipe of the artery pot 1. When the telescopic limit rod 422 slides to the end of the arc-shaped slide groove 411, the block 423 on the telescopic limit rod 422 will slide into the buckle 43 to fix the connector 42. The block 423 is designed with a right-angled inclined surface, and the inclined surface is easy to slide down along the buckle 43 surface. When the block 423 is completely inserted into the buckle 43, the telescopic limit rod 422 rebounds, and the block 423 is clamped in the buckle 43. After the arterial pot is replaced, the clamping piece on the pipeline is removed, thereby completing the replacement and installation of the liquid inlet pipe of the arterial pot 1 and the connecting main pipe 5.

[0039] The above is the process of replacing the arterial pot 1 , and the replacement steps of the venous pot 3 are the same as those of the arterial pot 1 .

Claims

1. A continuous blood purification pipeline, comprising an arterial pot (1), a dialyzer (2), and a venous pot (3), characterized in that: The inlet pipe of the arterial pot (1) is detachably connected to the connecting main pipe (5) through a connecting mechanism (4); one end of the connecting main pipe (5) is connected to the heparin pipeline (6) and the blood drawing assembly (7) through a three-way valve; the outlet pipe of the arterial pot (1) is connected to the inlet pipe of the dialyzer (2) through the connecting mechanism (4) and the dialyzer inlet blood vessel (21); the outlet pipe of the dialyzer (2) is connected to the dialyzer outlet blood vessel (22); one end of the dialyzer outlet blood vessel (22) is connected to the inlet pipe of the venous pot (3) through the connecting mechanism (4); the outlet pipe of the venous pot (3) is detachably connected to the return pipe (8) through the connecting mechanism (4); the connecting mechanism (4) comprises a connecting sleeve (41) fixedly sleeved on the outer wall of the inlet pipe of the arterial pot (1); a connecting head (42) detachably installed on the connecting sleeve (41); and buckles (43) arranged on both sides of the connecting sleeve (41).

2. A continuous blood purification circuit according to claim 1, characterized in that: One end of the heparin pipeline (6) is fixedly connected to a heparin pump (61).

3. A continuous blood purification circuit according to claim 1, characterized in that: The blood drainage assembly (7) comprises a rear-pump tube (71) fixedly connected to the three-way valve, a blood pump (72) fixedly connected to one end of the rear-pump tube (71), a blood drainage blood vessel (73) fixedly connected to the other end of the blood drainage blood vessel (72), and a pre-pump arterial pressure detector (74) arranged on the blood drainage blood vessel (73).

4. A continuous blood purification circuit according to claim 1, characterized in that: The arterial kettle (1) is provided with a post-pump arterial pressure detector (11), and the venous kettle (3) is provided with a venous pressure detector (31).

5. A continuous blood purification circuit according to claim 1, characterized in that: The return pipeline (8) is provided with an exhaust component (82) and an air detection clamp (81), and the air detection clamp (81) is arranged on the pipeline behind the exhaust component (82).

6. A continuous blood purification circuit according to claim 1, characterized in that: Arc-shaped sliding grooves (411) are symmetrically arranged on both sides of the sleeve wall of the connecting sleeve (41), and a plurality of springs (412) are fixedly distributed at the bottom end of the interior of the connecting sleeve (41), and an annular pressing plate (413) is fixedly connected to the spring (412).

7. A continuous blood purification circuit according to claim 1, characterized in that: The bottom end of the connector (42) is fixedly connected to one end of the connecting main pipe (5); a waterproof rubber ring layer (421) is provided on the connector (42) and the connector (42) is sleeved inside the liquid inlet pipe of the arterial pot (1); the waterproof rubber ring layer (421) is interference fit with the inside of the liquid inlet pipe of the arterial pot (1); telescopic limit rods (422) which are installed in cooperation with the arc-shaped slide groove (411) are symmetrically arranged on both sides of the connecting main pipe (5) below the connector (42); a clamping block (423) is provided at the telescopic end of the telescopic limit rod (422); the clamping block (423) is detachably installed on the buckle (43).

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