Continuous blood purification pipeline

Abstract

The utility model discloses a continuous blood purification pipeline which comprises a main pipeline, a branch pipeline and an ultrasonic thrombus detection assembly, the branch pipeline is communicated with the main pipeline, the main pipeline is provided with a first electromagnetic valve, the branch pipeline is provided with a second electromagnetic valve, and the first electromagnetic valve is communicated with the second electromagnetic valve. The main pipeline penetrates through the ultrasonic thrombus detection assembly and extends out, the main pipeline is connected with a transition blood bag, the branch pipeline is connected with a thrombus collection bag, and the ultrasonic thrombus detection assembly comprises an ultrasonic probe; thrombus in blood is detected in real time through the ultrasonic probe, the electromagnetic valve is controlled to respond in time to switch and adjust the passage of the pipeline, the thrombus in the blood is independently collected through the thrombus collecting bag, the undissolved thrombus is prevented from entering the subsequent pipeline, the pipeline is effectively prevented from being blocked, and the operation is simple and convenient. And a dissolving agent is injected into the thrombus collecting bag through the dissolving agent injection port, so that the thrombus is dissolved.

Description

Technical Field

[0001] The utility model relates to the technical field of blood purification, in particular to a continuous blood purification pipeline. Background Art

[0002] Blood purification circuits serve as channels for transporting blood and liquid medicine. These circuits are categorized by structure as those with pumps, those without pumps, and those with local connections. Continuous blood purification circuits are used in conjunction with hemodialysis devices. During hemodialysis treatment, blood is introduced into the extracorporeal circulation circuit, processed by hemodialysis, and then returned to the patient. This serves to correct biochemical imbalances, fluid, electrolyte, and pH imbalances, and remove excess water and solutes from the blood.

[0003] During hemodialysis, improper use of anticoagulants or insufficient dosage can cause blood to coagulate in the pipes, forming blood clots, which in turn block the pipes. If these blood clots are not treated in time, they will block subsequent pipes, causing the blood purification process to be unable to proceed normally, and rearranging the pipes is time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of the present utility model is to provide a continuous blood purification pipeline to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a continuous blood purification pipeline, comprising a main pipeline, a branch pipeline and an ultrasonic thrombus detection component, the branch pipeline being connected to the main pipeline, a first solenoid valve being provided on the main pipeline, a second solenoid valve being provided on the branch pipeline, the main pipeline passing through the ultrasonic thrombus detection component and extending out, the main pipeline being connected to a transition blood bag, the branch pipeline being connected to a thrombus collection bag, and the ultrasonic thrombus detection component including an ultrasonic probe.

[0006] The ultrasonic thrombus detection assembly includes a card seat, a card slot is provided on the card seat, the main line is embedded in the card slot and fixed to the card slot.

[0007] Wherein, a connecting frame is fixedly provided on the card holder, and the ultrasonic probe is installed and fixed on the connecting frame.

[0008] Wherein, the ultrasonic probe is connected to the ultrasonic generator.

[0009] Wherein, a first blood inlet tube is provided at one end of the transition blood bag, and the first blood inlet tube is communicated with the main line.

[0010] Wherein, the other end of the transition blood bag is provided with a first blood drainage tube.

[0011] Wherein, a second blood inlet tube is provided at one end of the thrombus collection bag, and the second blood inlet tube is connected to the branch pipeline.

[0012] Wherein, a second blood drainage tube is provided at the other end of the thrombus collection bag, and a valve is provided on the second blood drainage tube.

[0013] Wherein, a dissolving agent injection port is provided on one side of the upper end of the thrombus collection bag.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model detects blood clots in real time through an ultrasonic probe, controls the solenoid valve to respond and switch in time, adjusts the path of the pipeline, and collects the blood clots separately through a thrombus collection bag to prevent undissolved blood clots from entering the subsequent pipeline, thereby effectively preventing the pipeline from being blocked and ensuring the normal progress of blood purification.

[0016] 2. The utility model determines the injection amount of the dissolving agent according to the collection amount inside the thrombus collection bag, injects the dissolving agent into the thrombus collection bag through the dissolving agent injection port to dissolve the thrombus. After all the thrombus is dissolved, the valve is opened, and the blood inside the thrombus collection bag enters the interior of the transition blood bag through the second blood drainage tube, and then is discharged through the first blood drainage tube of the transition blood bag and transported to the subsequent blood purification equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a side view structural diagram of the utility model;

[0018] Figure 2 This is another side view structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the ultrasonic thrombus detection assembly of the present invention;

[0020] Figure 4 for Figure 1 A partial enlarged view of area A in the middle.

[0021] In the figure: 1. Main line; 2. Branch line; 3. Ultrasonic thrombus detection component; 4. Transition blood bag; 5. Thrombus collection bag; 11. First solenoid valve; 21. Second solenoid valve; 31. Card seat; 32. Card slot; 33. Connecting frame; 34. Ultrasonic probe; 41. First blood inlet pipe; 42. First blood discharge pipe; 51. Second blood inlet pipe; 52. Second blood discharge pipe; 53. Valve; 54. Dissolution agent injection port. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4 The utility model provides a technical solution: a continuous blood purification pipeline, including a main pipeline 1, a branch pipeline 2 and an ultrasonic thrombus detection component 3, the branch pipeline 2 is connected to the main pipeline 1, a first solenoid valve 11 is provided on the main pipeline 1, and a second solenoid valve 21 is provided on the branch pipeline 2. The main pipeline 1 passes through the ultrasonic thrombus detection component 3 and extends out, the main pipeline 1 is connected to a transition blood bag 4, the branch pipeline 2 is connected to a thrombus collection bag 5, and the ultrasonic thrombus detection component 3 includes an ultrasonic probe 34.

[0024] During blood delivery, blood flows inside the main line 1, and the ultrasonic thrombus detection component 3 forms a detection position. When blood passes through the detection position, it is detected by the ultrasonic probe 34 to determine whether the blood contains thrombus. If the blood does not contain thrombus, the second solenoid valve 21 is closed and the first solenoid valve 11 is open. At this time, a passage is formed between the main line 1 and the transition blood bag 4, and the blood flows through the line into the transition blood bag 4, and then is delivered to the subsequent equipment through the transition blood bag 4.

[0025] When the ultrasonic probe 34 detects that the blood segment contains thrombus, the second solenoid valve 21 is in the open state and the first solenoid valve 11 is in the closed state. At this time, a passage is formed between the main line 1 and the thrombus collection bag 5 through the branch line 2, and the blood segment containing thrombus flows into the thrombus collection bag 5 through the line. After collection, the second solenoid valve 21 is closed again, and the first solenoid valve 11 is opened again, reconnecting the main line 1 and the transition blood bag 4, and transporting blood normally.

[0026] Among them, the ultrasonic thrombus detection assembly 3 is a prior art. The detection principle of the ultrasonic thrombus detection assembly 3 is that the ultrasonic probe 34 emits ultrasonic waves of a certain intensity. When the ultrasonic waves encounter moving blood, an ultrasonic Doppler frequency shift is generated. The wavelength of the ultrasonic waves is larger than the diameter of red blood cells in the blood. When the ultrasonic waves encounter red blood cells, they are scattered. The ultrasonic echo signal is only the portion of the sound intensity scattered by the red blood cells. When a thrombus with a diameter different from that of the red blood cells appears in the blood, the thrombus forms an interface with the blood flow. The sound intensity of the ultrasonic waves reflected at the interface between the two media is proportional to the difference in acoustic impedance between the two media. The greater the density difference between the two media, the stronger the received echo signal. As a result, the sound intensity of the reflected wave between the blood and the thrombus is significantly greater than the scattered sound intensity. Therefore, the ultrasonic probe 34 can detect thrombus in the blood and control the solenoid valve to respond and switch in time, adjust the path of the pipeline, collect the thrombus in the blood separately, and prevent undissolved thrombus from entering the subsequent pipeline, thereby effectively preventing pipeline blockage and ensuring the normal progress of blood purification.

[0027] The transition blood bag 4 has a certain amount of blood pre-stored therein, which plays a transition role and ensures the flow rate of the blood.

[0028] Among them, the ultrasonic thrombus detection component 3 includes a card holder 31, and a card slot 32 is provided on the card holder 31. The main line 1 is embedded in the inside of the card slot 32 and is fixed with the card slot 32. The ultrasonic thrombus detection component 3 and the main line 1 are a detachable structure, which facilitates the maintenance of the ultrasonic thrombus detection component 3.

[0029] Among them, a connecting frame 33 is fixed on the card holder 31, and an ultrasonic probe 34 is installed and fixed on the connecting frame 33. The detection surface of the ultrasonic probe 34 faces the main line 1. When blood flows inside the main line 1, the blood is detected in real time through the ultrasonic probe 34.

[0030] The ultrasonic probe 34 is connected to an ultrasonic generator, and the ultrasonic generator provides ultrasonic energy to the ultrasonic probe 34 for detection.

[0031] Among them, a first blood inlet tube 41 is provided at one end of the transition blood bag 4, and the first blood inlet tube 41 is connected to the main line 1. When the first solenoid valve 11 of the main line 1 is opened and the second solenoid valve 21 is in the closed state, the first blood inlet tube 41 of the transition blood bag 4 is connected to the main line 1, and the blood flows through the main line 1 to the first blood inlet tube 41, and then enters the interior of the transition blood bag 4.

[0032] The other end of the transitional blood bag 4 is provided with a first blood drainage tube 42 , through which the blood inside the transitional blood bag 4 is discharged to a subsequent blood purification device.

[0033] Among them, a second blood inlet tube 51 is provided at one end of the thrombus collection bag 5, and the second blood inlet tube 51 is connected to the branch pipeline 2. When the second solenoid valve 21 is opened and the first solenoid valve 11 is in a closed state, the main pipeline 1, the branch pipeline 2 and the second blood inlet tube 51 are connected, and the blood flows through the main pipeline 1 to the branch pipeline 2, and then enters the thrombus collection bag 5 through the branch pipeline 2, and is collected centrally by the thrombus collection bag 5.

[0034] The other end of the thrombus collection bag 5 is provided with a second blood drainage tube 52 , and a valve 53 is provided on the second blood drainage tube 52 .

[0035] A dissolving agent injection port 54 is provided on one side of the upper end of the thrombus collection bag 5 .

[0036] Among them, the injection amount of the dissolving agent is determined according to the collection amount inside the thrombus collection bag 5, and the dissolving agent is injected into the thrombus collection bag 5 through the dissolving agent injection port 54 to dissolve the thrombus. After all the thrombus is dissolved, the valve 53 is opened, and the blood inside the thrombus collection bag 5 enters the interior of the transition blood bag 4 through the second blood drainage tube 52, and then is discharged through the first blood drainage tube 42 of the transition blood bag 4 and transported to the subsequent blood purification equipment.

[0037] Working principle: The position of the ultrasonic thrombus detection component 3 forms a detection position. When the blood flows inside the main line 1 and passes through the detection position, it is detected by the ultrasonic probe 34. During the detection, whether the blood section contains thrombus. If the blood section does not contain thrombus, the second solenoid valve 21 is in a closed state, and the first solenoid valve 11 is in an open state. At this time, a passage is formed between the main line 1 and the transition blood bag 4, and the blood flows through the pipeline to the inside of the transition blood bag 4, and then the blood is transported to the subsequent equipment through the transition blood bag 4. When the ultrasonic probe 34 detects that the blood section contains thrombus, the second solenoid valve 21 is in an open state, and the first solenoid valve 11 is in a closed state. At this time, the blood between the main line 1 and the thrombus collection bag 5 A passage is formed through the branch pipeline 2, and the blood section containing the thrombus flows into the thrombus collection bag 5 through the pipeline. After collection, the second solenoid valve 21 is closed again, and the first solenoid valve 11 is opened again, and the main pipeline 1 and the transition blood bag 4 are reconnected to transport the blood normally. Finally, the injection amount of the dissolving agent is determined according to the collection amount inside the thrombus collection bag 5, and the dissolving agent is injected into the thrombus collection bag 5 through the dissolving agent injection port 54 to dissolve the thrombus. After all the thrombus is dissolved, the valve 53 is opened, and the blood inside the thrombus collection bag 5 enters the interior of the transition blood bag 4 through the second blood drainage pipe 52, and is then discharged through the first blood drainage pipe 42 of the transition blood bag 4 and transported to the subsequent blood purification equipment.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous blood purification pipeline, comprising a main pipeline (1), a branch pipeline (2) and an ultrasonic thrombus detection component (3), characterized in that: The branch pipeline (2) is connected to the main pipeline (1); a first solenoid valve (11) is provided on the main pipeline (1); a second solenoid valve (21) is provided on the branch pipeline (2); the main pipeline (1) passes through the ultrasonic thrombus detection component (3) and extends out; the main pipeline (1) is connected to a transition blood bag (4); the branch pipeline (2) is connected to a thrombus collection bag (5); and the ultrasonic thrombus detection component (3) includes an ultrasonic probe (34).

2. A continuous blood purification circuit according to claim 1, characterized in that: The ultrasonic thrombus detection assembly (3) comprises a card seat (31), a card slot (32) is provided on the card seat (31), and the main line (1) is embedded in the card slot (32) and fixed to the card slot (32).

3. A continuous blood purification circuit according to claim 2, characterized in that: A connecting frame (33) is fixedly provided on the card holder (31), and the ultrasonic probe (34) is mounted and fixed on the connecting frame (33).

4. A continuous blood purification circuit according to claim 3, characterized in that: The ultrasonic probe (34) is connected to an ultrasonic generator.

5. The continuous blood purification circuit according to claim 1, characterized in that: A first blood inlet tube (41) is provided at one end of the transition blood bag (4), and the first blood inlet tube (41) is connected to the main line (1).

6. The continuous blood purification circuit according to claim 5, characterized in that: The other end of the transition blood bag (4) is provided with a first blood drainage tube (42).

7. The continuous blood purification circuit according to claim 1, characterized in that: A second blood inlet tube (51) is provided at one end of the thrombus collection bag (5), and the second blood inlet tube (51) is connected to the branch pipeline (2).

8. The continuous blood purification circuit according to claim 7, characterized in that: The other end of the thrombus collection bag (5) is provided with a second blood drainage tube (52), and the second blood drainage tube (52) is provided with a valve (53).

9. The continuous blood purification circuit according to claim 8, characterized in that: A dissolving agent injection port (54) is provided on one side of the upper end of the thrombus collection bag (5).

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