Blood purification device convenient for improving purification efficiency

Abstract

The blood purification device comprises a blood purifier, a downward extending plate and a plurality of dialysis pipelines, a plurality of pipeline connectors are installed on one side of the downward extending plate, liquid flowing grooves are formed in the pipeline connectors, the dialysis pipelines are inserted into the inner walls of the corresponding liquid flowing grooves, and the dialysis pipelines are connected with the downward extending plate through the liquid flowing grooves. A connector chuck is installed on the side wall of the dialysis pipeline, a bottom groove is formed in the bottom end of the pipeline connector, an annular inner groove is formed in the pipeline connector, and a check ring is fixedly connected to the inner wall of the annular inner groove; the sealing air bag expands and extrudes when the dialysis pipeline is connected with the pipeline connector, the connecting tightness and the sealing effect between the connector chuck and the bottom groove are enhanced, then blood leakage or air entering the pipeline is prevented, the actual blood amount participating in purification is kept, and the purification efficiency is prevented from being affected; air is prevented from entering a pipeline to form air embolism, and the risk that external bacteria infect blood is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a blood purification device which is convenient for improving purification efficiency. Background Art

[0002] A blood purification device is a medical device used to treat kidney disease and some other conditions. It mainly maintains the patient's body functions by removing harmful substances from the blood. In blood purification, there are usually arterial lines, venous lines, and dialysate lines that need to be connected to the equipment. The arterial line draws the patient's blood out of the body and sends it to the equipment; the venous line sends the purified blood back to the patient's body; the dialysate line is responsible for transporting the dialysate to the dialyzer and expelling it after material exchange. If the connection between the pipeline and the purification equipment is not tight or the seal is poor, it is easy to cause blood leakage or air to enter the pipeline. Blood leakage will reduce the actual amount of blood involved in purification and reduce the purification efficiency. In addition, air entering the pipeline may form an air embolism, hinder blood flow, affect material exchange, and also reduce the purification effect. At the same time, there is a risk of bacterial infection and blood loss. To this end, we propose a blood purification device that is easy to improve the purification efficiency. Summary of the invention

[0003] The main purpose of the present invention is to provide a blood purification device which is convenient for improving the purification efficiency.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] A blood purification device for improving purification efficiency comprises a blood purifier, a lower extension plate and a plurality of dialysis pipelines, a plurality of pipeline connectors are installed on one side of the lower extension plate, a liquid flow groove is provided in each of the pipeline connectors, the dialysis pipeline is plugged into the corresponding inner wall of the liquid flow groove, a joint chuck is installed on the side wall of the dialysis pipeline, a bottom groove is provided at the bottom end of the pipeline connector, the joint chuck is connected to the corresponding inner wall of the bottom groove, an annular inner groove is provided in the pipeline connector, and a blocking ring is fixedly connected to the inner wall of the annular inner groove, An airtight piston ring is slidably connected between the annular inner groove and the blocking ring, and two push rods are fixedly connected to the bottom end of the airtight piston ring, and the two push rods are in contact with the top of the joint chuck. An accommodating ring groove is provided in the pipe connector, and a sealing airbag is installed on the inner wall of the accommodating ring groove. A connecting air pipe is installed between the annular inner groove and the sealing airbag, and an annular groove is provided on the joint chuck, and the sealing airbag is snap-connected to the inner wall of the annular groove, and a plurality of limiting wedges are arranged on the inner side of the bottom groove to limit the joint chuck.

[0006] A further improvement of the present invention is that two compression springs are fixedly connected to the top end of the airtight piston ring, and the compression springs are fixedly connected to the inner walls of the corresponding annular inner grooves.

[0007] A further improvement of the present invention is that a clearance groove is provided on the connector chuck, two air pressure sensors are installed in the pipe connector, the air pressure sensors correspond to the spaces of the clearance grooves, a plurality of sound and light indicators are installed on one side of the dialysis pipeline, and the air pressure sensors transmit signals to the corresponding sound and light indicators.

[0008] A further improvement of the present invention is that a plurality of slide grooves are provided in the pipe connector, the slide grooves correspond to the positions of the bottom grooves, the limiting wedge blocks are slidably connected to the corresponding inner walls of the slide grooves, one end of the limiting wedge blocks is fixedly connected to a return spring, and the return spring is fixedly connected to the inner wall of the slide groove.

[0009] A further improvement of the present invention is that one end of the limiting wedge block is fixedly connected to a traction rope, an external connecting ring is provided between several of the pipe connectors, the external connecting ring is rotatably connected to the side wall of the pipe connector, the side wall of the pipe connector is provided with several wire-holding outer grooves, and the return spring is engaged and connected to the corresponding inner wall of the wire-holding outer groove.

[0010] A further improvement of the present invention is that a blood purification device for improving purification efficiency comprises the following steps:

[0011] S1. When the dialysis pipeline and the pipeline connector are installed, the dialysis pipeline drives the joint chuck to be inserted into the bottom groove, and the joint chuck squeezes and pushes the two push rods. The two push rods simultaneously drive the airtight piston ring to slide toward the lower extension plate. At this time, the airtight piston ring compresses the air inside the annular inner groove, so that the annular inner groove can transport air to the inside of the sealing airbag through the connecting air pipe. The sealing airbag is aligned with the annular groove, and the sealing airbag enters the annular groove space. The return spring pushes the limiting wedge block to intercept and limit the bottom of the joint chuck, maintain the stability of the joint chuck, and complete the tight connection of the pipeline and the equipment;

[0012] S2. After the dialysis tubing and the joint chuck are connected to the pipeline connector, the air pressure inside the clearance groove remains stable. Two air pressure sensors monitor the air pressure inside the clearance groove. When there is a looseness between the joint chuck and the pipeline connector or the sealing airbag is not tightly sealed, the air pressure inside the clearance groove changes. The air pressure sensor transmits an electrical signal to the corresponding sound and light prompter, and the sound and light prompter promptly issues an alarm to remind the surrounding medical staff to check;

[0013] S3. When disassembling the pipeline and equipment, the external connection ring is controlled to rotate. The external connection ring pulls several traction ropes at the same time. The traction ropes pull the limit wedges, and the limit wedges shrink into the slide groove. The limit wedges no longer limit the joint chuck. The two compression springs push the airtight piston ring downward, so that the airtight piston ring can drive the push rod to push the joint chuck outward, and the joint chuck can drive the dialysis pipeline to detach from the pipeline connector to complete the disassembly.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the sealing air bag is expanded and squeezed when the dialysis tubing is connected to the pipeline connector, thereby strengthening the connection tightness and sealing effect between the joint chuck and the bottom groove, thereby preventing blood leakage or air from entering the pipeline, maintaining the actual amount of blood involved in purification, preventing the purification efficiency from being affected, and avoiding the possibility that air enters the pipeline to form an air embolism, hindering blood flow, affecting material exchange, and reducing the purification effect. At the same time, the risk of external bacteria infecting the blood is avoided.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the limit wedge is pushed by the return spring to automatically complete the limitation of the docking joint chuck, and by controlling the rotation of the external connecting ring, the limit wedge can be contracted to complete the unlocking of the docking joint chuck. The disassembly and assembly are simple and convenient, the operation efficiency is high, and the time required for installation and disassembly can be reduced, thereby facilitating the rapid deployment of the connection between the patient and the equipment, thereby improving the blood purification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of a blood purification device that is convenient for improving purification efficiency.

[0017] Figure 2 It is a front view and a cross-sectional enlarged structural schematic diagram of components such as a pipeline connector in a blood purification device for improving purification efficiency according to the present invention.

[0018] Figure 3 The present invention is a schematic diagram of an enlarged three-dimensional cross-section structure of a pipeline connector in a blood purification device for improving purification efficiency.

[0019] Figure 4 It is a schematic three-dimensional diagram of an enlarged structure of a sealing airbag in a blood purification device for improving purification efficiency according to the present invention.

[0020] In the figure: 1. blood purifier; 11. lower extension plate; 12. dialysis pipeline; 13. connector chuck; 131. annular groove; 132. give way groove; 2. pipeline connector; 21. liquid flow trough; 22. bottom groove; 23. annular inner groove; 231. blocking ring; 232. connecting air pipe; 24. containing ring groove; 25. sealing air bag; 26. air pressure sensor; 27. slide groove; 28. outer groove for clamping wire; 3. airtight piston ring; 31. push rod; 32. compression spring; 4. limit wedge; 41. return spring; 42. traction rope; 43. external link ring; 5. sound and light prompter. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with specific embodiments, wherein the accompanying drawings are only used for exemplary descriptions and represent only schematic diagrams rather than actual drawings, and should not be understood as limitations on this patent. In order to better illustrate the specific embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted. Based on the specific embodiments of the present invention, all other specific embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] Example

[0023] See also Figure 1-Figure 4 A blood purification device for improving purification efficiency comprises a blood purifier 1, a lower extension plate 11 and a plurality of dialysis pipelines 12. A plurality of pipeline connectors 2 are installed on one side of the lower extension plate 11. Liquid flow grooves 21 are provided in the plurality of pipeline connectors 2. The dialysis pipelines 12 are plugged into the inner walls of the corresponding liquid flow grooves 21. A joint chuck 13 is installed on the side wall of the dialysis pipeline 12. A bottom groove 22 is provided at the bottom end of the pipeline connector 2. The joint chuck 13 is connected to the inner wall of the corresponding bottom groove 22 by snapping. An annular inner groove 23 is provided in the pipeline connector 2. A blocking ring 231 is fixedly connected to the inner wall of the annular inner groove 23. An airtight piston ring 3 is slidably connected between the annular inner groove 23 and the blocking ring 231. Two push rods 31 are fixedly connected to the bottom end of the airtight piston ring 3. The two push rods 31 are in contact with the top of the joint chuck 13. An accommodating ring groove 24 is provided in the pipe connector 2. A sealing air bag 25 is installed on the inner wall of the accommodating ring groove 24. A connecting air pipe 232 is installed between the annular inner groove 23 and the sealing air bag 25. An annular groove 131 is provided on the joint chuck 13. The sealing air bag 25 is snap-connected to the inner wall of the annular groove 131. A plurality of limiting wedge blocks 4 for limiting the joint chuck 13 are provided on the inner side of the bottom groove 22.

[0024] In this embodiment: the blood purifier 1 supports the components of the device, the blood purifier 1 cleans impurities in the blood through the internal blood purification structure, the blood purifier 1 is connected to the patient through a plurality of dialysis pipelines 12 to achieve extracorporeal circulation filtration of the blood, the blood purifier 1 supports a plurality of pipeline connectors 2 through the lower extension plate 11, the lower extension plate 11 is connected to the dialysis pipeline 12 through the pipeline connector 2, the pipeline connector 2 is connected to the dialysis pipeline 12 through the liquid flow groove 21, so that the blood can pass normally, the airtight piston ring 3 controls the internal air pressure of the annular inner groove 23, and the blocking ring 23 1 The annular inner groove 23 is separated into a space. The annular inner groove 23 transmits the air pressure to the sealing airbag 25 through the connecting air pipe 232. The accommodating annular groove 24 accommodates the sealing airbag 25. The sealing airbag 25 is designed to be expandable and contractible. When gas is transported to the inside of the sealing airbag 25, the air pressure inside the sealing airbag 25 increases, so that the sealing airbag 25 itself can expand. When the dialysis pipeline 12 drives the joint chuck 13 to engage in the bottom groove 22, the joint chuck 13 contacts the two push rods 31, and the airtight piston ring 3 is connected to the joint chuck 13 through the two push rods 31. As the dialysis pipeline 12 drives the joint chuck 13 to engage in the bottom groove 22, the joint chuck 13 contacts the two push rods 31. The airtight piston ring 3 is connected to the joint chuck 13 through the two push rods 31. 2 is pushed inside, so that the joint chuck 13 can push the two push rods 31, and the push rods 31 slide on the inner wall of the pipeline connector 2. The two push rods 31 simultaneously drive the airtight piston ring 3 to slide toward the downward extension plate 11. At this time, the airtight piston ring 3 compresses the air inside the annular inner groove 23, so that the annular inner groove 23 can transport air to the inside of the sealing airbag 25 through the connecting air pipe 232. The sealing airbag 25 is aligned with the annular groove 131, and the sealing airbag 25 enters the space of the annular groove 131. When the joint chuck 13 contacts the inner upper wall of the bottom groove 22, the joint chuck 13 and the dialysis pipeline 12 are limited and cannot be pushed further. A number of limiting wedge blocks 4 block and limit the circuit of the connector chuck 13, so that the dialysis pipeline 12 and the connector chuck 13 are connected and installed with the pipeline connector 2. The sealing air bag 25 expands and squeezes inside the annular groove 131 to strengthen the connection tightness and sealing effect between the connector chuck 13 and the bottom groove 22, thereby preventing blood leakage or air from entering the pipeline, maintaining the actual amount of blood involved in purification, preventing the purification efficiency from being affected, and avoiding the possibility of air entering the pipeline to form an air embolism, hindering blood flow, affecting material exchange, and reducing the purification effect. At the same time, the risk of external bacteria infecting the blood is avoided.

[0025] Among them, two compression springs 32 are fixedly connected to the top of the airtight piston ring 3, and the compression springs 32 are fixedly connected to the inner wall of the corresponding annular inner groove 23; the two compression springs 32 push the airtight piston ring 3 in the downward direction, so that the airtight piston ring 3 can drive the push rod 31 to push the joint chuck 13 outward, and when the limiting wedge block 4 unlocks the limit of the joint chuck 13, the joint chuck 13 can drive the dialysis pipeline 12 to detach from the pipeline connector 2.

[0026] Among them, a yield groove 132 is provided on the joint chuck 13, and two air pressure sensors 26 are installed in the pipeline connector 2. The air pressure sensor 26 corresponds to the space of the yield groove 132. A plurality of sound and light prompters 5 are installed on one side of the dialysis pipeline 12, and the air pressure sensor 26 transmits signals to the corresponding sound and light prompter 5; the yield groove 132 gives way to the two air pressure sensors 26. When the dialysis pipeline 12 and the joint chuck 13 are connected to the pipeline connector 2, the air pressure in the internal space of the yield groove 132 remains stable. The two air pressure sensors 26 monitor the air pressure inside the yield groove 132. When there is looseness between the joint chuck 13 and the pipeline connector 2 or the sealing airbag 25 is not tightly sealed, the air pressure inside the yield groove 132 changes. At this time, the air pressure sensor 26 is sensed, and the air pressure sensor 26 transmits an electrical signal to the corresponding sound and light prompter 5, so that the sound and light prompter 5 can promptly initiate an alarm to remind the surrounding medical staff to check and reduce hidden dangers.

[0027] Among them, a plurality of slide grooves 27 are opened in the pipeline connector 2, and the positions of the slide grooves 27 correspond to the bottom groove 22. The limiting wedge block 4 is slidably connected to the inner wall of the corresponding slide groove 27. One end of the limiting wedge block 4 is fixedly connected to a return spring 41, and the return spring 41 is fixedly connected to the inner wall of the slide groove 27; the slide groove 27 accommodates and slides and guides the limiting wedge block 4. When the joint chuck 13 enters the bottom groove 22, the joint chuck 13 squeezes the plurality of limiting wedge blocks 4 so that the limiting wedge blocks 4 can retract into the slide groove 27. When the joint chuck 13 passes over the limiting wedge block 4 and completes the installation, the return spring 41 pushes the limiting wedge block 4 to intercept and limit the bottom of the joint chuck 13, thereby maintaining the stability of the joint chuck 13 and preventing the dialysis pipeline 12 and the joint chuck 13 from falling off.

[0028] Among them, a traction rope 42 is fixedly connected to one end of the limiting wedge block 4, and an external connecting ring 43 is provided between several pipe connectors 2. The external connecting ring 43 is rotatably connected to the side wall of the pipe connector 2. The side wall of the pipe connector 2 is provided with several wire-clamping outer grooves 28, and the return spring 41 is engaged and connected to the inner wall of the corresponding wire-clamping outer groove 28; the traction rope 42 performs traction work on the limiting wedge block 4, and the external connecting ring 43 controls several traction ropes 42 at the same time, so that several traction ropes 42 can simultaneously pull the corresponding limiting wedge block 4 back into the inside of the slide groove 27, and when the external connecting ring 43 rotates, it drives the traction rope 42 to engage into the wire-clamping outer groove 28, so as to avoid the return spring 41 being clamped between the pipe connector 2 and the external connecting ring 43 to hinder the normal use of the external connecting ring 43, thereby completing the disassembly of the dialysis pipeline 12 and the pipe connector 2, and the disassembly and assembly are simple and convenient, with high operation efficiency, which can reduce the time required for installation and disassembly, thereby facilitating the rapid deployment of the connection between the patient and the equipment, and improving the blood purification efficiency.

[0029] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A blood purification device for improving purification efficiency, comprising a blood purifier (1), a lower extension plate (11) and a plurality of dialysis pipelines (12), characterized in that: A plurality of pipe connectors (2) are installed on one side of the lower extension plate (11), and a liquid flow groove (21) is provided in each of the pipe connectors (2). The dialysis pipeline (12) is plugged into the inner wall of the corresponding liquid flow groove (21). A joint chuck (13) is installed on the side wall of the dialysis pipeline (12). A bottom groove (22) is provided at the bottom end of the pipe connector (2), and the joint chuck (13) is snap-connected to the inner wall of the corresponding bottom groove (22). An annular inner groove (23) is provided in the pipe connector (2), and a blocking ring (231) is fixedly connected to the inner wall of the annular inner groove (23). An airtight movable member is slidably connected between the annular inner groove (23) and the blocking ring (231). A plug ring (3), the bottom end of the airtight piston ring (3) is fixedly connected to two push rods (31), and the two push rods (31) are in contact with the top of the joint chuck (13). The pipe connector (2) is provided with a receiving ring groove (24), and a sealing air bag (25) is installed on the inner wall of the receiving ring groove (24). A connecting air pipe (232) is installed between the annular inner groove (23) and the sealing air bag (25). The joint chuck (13) is provided with an annular groove (131), and the sealing air bag (25) is snap-connected to the inner wall of the annular groove (131). A plurality of limiting wedge blocks (4) for limiting the position of the joint chuck (13) are arranged on the inner side of the bottom groove (22).

2. A blood purification device for improving purification efficiency according to claim 1, characterized in that: Two compression springs (32) are fixedly connected to the top end of the airtight piston ring (3), and the compression springs (32) are fixedly connected to the inner walls of the corresponding annular inner grooves (23).

3. A blood purification device for improving purification efficiency according to claim 1, characterized in that: The connector chuck (13) is provided with a clearance groove (132), and two air pressure sensors (26) are installed in the pipeline connector (2), and the air pressure sensors (26) correspond to the spaces of the clearance grooves (132). A plurality of sound and light indicators (5) are installed on one side of the dialysis pipeline (12), and the air pressure sensors (26) transmit signals to the corresponding sound and light indicators (5).

4. A blood purification device for improving purification efficiency according to claim 1, characterized in that: A plurality of slide grooves (27) are provided in the pipe connector (2), the slide grooves (27) correspond to the positions of the bottom grooves (22), the limiting wedge block (4) is slidably connected to the inner wall of the corresponding slide groove (27), one end of the limiting wedge block (4) is fixedly connected to a return spring (41), and the return spring (41) is fixedly connected to the inner wall of the slide groove (27).

5. A blood purification device for improving purification efficiency according to claim 4, characterized in that: One end of the limiting wedge block (4) is fixedly connected to a traction rope (42); an external link ring (43) is provided between a plurality of the pipe connectors (2); the external link ring (43) is rotatably connected to the side wall of the pipe connector (2); a plurality of wire-holding outer grooves (28) are provided on the side wall of the pipe connector (2); and the return spring (41) is engaged and connected to the inner wall of the corresponding wire-holding outer groove (28).

6. A blood purification device for improving purification efficiency according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. When the dialysis pipeline (12) and the pipeline connector (2) are installed, the dialysis pipeline (12) drives the joint chuck (13) to be inserted into the bottom groove (22). The joint chuck (13) squeezes and pushes the two push rods (31). The two push rods (31) simultaneously drive the airtight piston ring (3) to slide in the direction of the lower extension plate (11). At this time, the airtight piston ring (3) compresses the air inside the annular inner groove (23), so that the annular inner groove (23) can transport air to the inside of the sealing airbag (25) through the connecting air pipe (232). The sealing airbag (25) is aligned with the annular groove (131), and the sealing airbag (25) enters the space of the annular groove (131). The return spring (41) pushes the limiting wedge (4) to intercept and limit the lower part of the joint chuck (13), thereby maintaining the stability of the joint chuck (13) and completing the tight connection between the pipeline and the equipment. S2. After the dialysis pipeline (12) and the joint chuck (13) are connected to the pipeline connector (2), the air pressure in the space inside the clearance groove (132) remains stable. The two air pressure sensors (26) monitor the air pressure inside the clearance groove (132). When there is a looseness between the joint chuck (13) and the pipeline connector (2) or the sealing airbag (25) is not tightly sealed, the air pressure inside the clearance groove (132) changes. The air pressure sensor (26) transmits an electrical signal to the corresponding sound and light prompter (5). The sound and light prompter (5) promptly issues an alarm to remind the surrounding medical staff to conduct an inspection. S3. When the pipeline and the equipment are to be disassembled, the outer link ring (43) is controlled to rotate, and the outer link ring (43) simultaneously pulls a plurality of traction ropes (42). The traction ropes (42) pull the limiting wedge block (4), and the limiting wedge block (4) shrinks into the slide groove (27). The limiting wedge block (4) no longer limits the joint chuck (13). The two compression springs (32) push the airtight piston ring (3) downward, so that the airtight piston ring (3) can drive the push rod (31) to push the joint chuck (13) outward, and the joint chuck (13) can drive the dialysis pipeline (12) to be separated from the pipeline connector (2), thereby completing the disassembly.

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