Adjustable fixing equipment for artificial liver treatment filter pipeline

Abstract

The invention discloses an artificial liver treatment filter pipeline adjustable fixing device which comprises a connecting catheter installed on the side face of a liver treatment filter body, and the connecting catheter is detachably installed on the side face of the liver treatment filter body. A catheter fixing assembly used for fixing the connecting catheter is installed at the position, corresponding to the connecting catheter, of the side face of the liver treatment filter body. During installation, the guide pipe connector is inserted into the connector, the sliding clamping rod is automatically clamped into the clamping groove under the elastic force of the spring, connection is stable, and loosening and falling are avoided. In use, the catheter supporting seat supports the bottom of the catheter, and the stability is enhanced; the telescopic arc-shaped auxiliary support is bent by being attached to the guide pipe, bending is prevented, and liquid circulation and the service life of a pipeline are guaranteed. And the support span can be flexibly changed by adjusting the positioning bolts, catheters and scenes of different specifications can be adapted, the universality and the practicability are improved, reliable support is provided for artificial liver treatment, and the clinical application value is high.

Description

Technical Field

[0001] This invention relates to the field of liver treatment filter tubing installation technology, specifically an adjustable fixing device for artificial liver treatment filter tubing. Background Technology

[0002] During artificial liver treatment, the fixation and support of the artificial liver treatment filter tubing are crucial. Stable and reliable fixation and support devices can ensure the secure connection of the tubing during treatment, avoiding problems such as tubing shaking, displacement, or bending that could affect the treatment effect or even cause safety hazards.

[0003] Currently, there are some existing artificial liver treatment filter tubing fixation devices, such as the adjustable fixation device for artificial liver treatment filter tubing disclosed in CN120285410A. This device includes a fixation box with an alignment groove in the middle of its front end. A connecting rope is fixedly installed on the upper surface of the front end, and a dust cover is installed at the other end of the connecting rope. An alignment block is located on the lower surface of the dust cover. A limiting rod is movably installed inside the fixation box, with a clamping spring sleeved on the outside of the limiting rod. A clamping plate is fixedly installed at the inner end of the limiting rod, and silicone ribs are present on the inner side of the clamping plate. This device is installed at the interface position, and the internal clamping spring pushes the clamping plates on both sides to clamp the plug, achieving the effect of fixing the interface. This is convenient for operators to use, and the vascular access fixation tubing can be adjusted and compressed for hemostasis to prevent tubing dislodgement.

[0004] However, the aforementioned existing technologies still have significant shortcomings in practical applications. Their methods for fixing the connecting catheter are relatively simplistic, lacking in both stable fixation and effective support, making it difficult to fully guarantee the stability of the connecting catheter during use. Especially when the connecting catheter is subjected to external forces or is in a complex environment, it is prone to shaking, displacement, or even bending. This could not only affect the normal progress of artificial liver treatment and reduce its effectiveness, but also pose a potential threat to patient safety. Summary of the Invention

[0005] The purpose of this invention is to provide an adjustable fixing device for the tubing of an artificial liver treatment filter to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an adjustable fixing device for an artificial liver treatment filter pipeline, comprising a connecting conduit installed on the side of the liver treatment filter body, the connecting conduit being detachably installed on the side of the liver treatment filter body, a conduit fixing assembly for fixing the connecting conduit being installed on the side of the liver treatment filter body corresponding to the position of the connecting conduit, and a conduit support assembly for supporting the connecting conduit being installed on the side of the liver treatment filter body corresponding to the position of the connecting conduit.

[0007] Optionally, a waste filtration interface is installed on one side of the liver treatment filter body, and two arterial and venous end interfaces are installed on the other side of the liver treatment filter body. The end of the connecting catheter is provided with a catheter connector that matches the arterial and venous end interfaces.

[0008] Optionally, the catheter fixation assembly includes a connector positioning seat, which is fixedly connected to the side of the liver treatment filter body and corresponds to the position of the arteriovenous end interface. The top and bottom of the connector positioning seat are equipped with catheter clamping assemblies for fixing the catheter connector.

[0009] Optionally, the conduit clamping assembly includes a mounting base fixedly connected to the connector positioning seat, a sliding clamp rod slidably connected to the mounting base, and a clamping groove matching the sliding clamp rod is provided on the conduit connector head at a position corresponding to the sliding clamp rod.

[0010] Optionally, a connecting plate is fixedly connected to the top of the sliding lever, and limit telescopic components are installed on both sides of the bottom of the connecting plate.

[0011] Optionally, the limiting telescopic assembly includes a telescopic cylinder fixedly connected to the bottom of the connecting plate, an abutment spring fixedly connected to the inner wall of the telescopic cylinder, a telescopic column fixedly connected to the other end of the abutment spring, the telescopic column being slidably connected to the inner wall of the telescopic cylinder, and the other end of the telescopic column being fixedly connected to the top of the mounting base.

[0012] Optionally, the catheter support assembly includes an L-shaped bracket fixedly connected to the side of the liver treatment filter body, and the other end of the L-shaped bracket is fixedly connected to a catheter support seat for supporting the connecting catheter.

[0013] Optionally, the side of the catheter support is provided with a slidably adjustable auxiliary support, the side of the auxiliary support is fixedly connected with an adjusting slide rail, and the side of the catheter support is provided with an adjusting groove that matches the adjusting slide rail.

[0014] Optionally, two symmetrically arranged limiting sliders are fixedly connected to one end of the top of the adjusting slide rail, and a limiting groove matching the limiting slider is opened on the guide support seat at the position corresponding to the limiting slider.

[0015] Optionally, the bottom of the conduit support, corresponding to the position of the adjusting slide rail, is also threaded with a positioning bolt for positioning the adjusting slide rail.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention provides an adjustable fixing device for an artificial liver treatment filter pipeline. When installing the connecting catheter, simply insert the catheter connector at its end into the arteriovenous end interface. The sliding lever automatically engages with the slot under the action of compression and spring force, achieving a convenient and stable connection and effectively preventing loosening or detachment. During use, the catheter support provides reliable support for the bottom of the connecting catheter, enhancing stability. The retractable arc-shaped auxiliary support cleverly adapts to the bending of the connecting catheter, preventing bending from affecting fluid flow and pipeline lifespan. Furthermore, by loosening and tightening the positioning bolts, the distance between the auxiliary support and the catheter support can be flexibly adjusted, thereby changing the support span to meet the needs of different specifications and scenarios. This greatly improves the versatility and practicality of the device, providing a stable and reliable pipeline fixing and support solution for artificial liver treatment, with broad clinical application prospects.

[0017] 2. In this invention, the installation of the connecting catheter is extremely simple. Simply insert the catheter connector at the end of the connecting catheter into the arteriovenous end interface on the side of the liver treatment filter body. During insertion, the catheter connector compresses the arc-shaped surface of the sliding lever on the connector positioning seat, causing the sliding lever to retract and simultaneously compressing the abutment spring. When the sliding lever moves to the slot position on the catheter connector, it automatically engages with the slot under the elastic force of the abutment spring. This design enables convenient installation of the connecting catheter, and the cooperation between the sliding lever and the slot provides a stable connection, effectively preventing loosening or detachment during use, greatly improving the reliability and stability of the connecting catheter connection.

[0018] 3. In this invention, during the use of the connecting catheter, the catheter support effectively supports the bottom of the connecting catheter. This support increases the stability of the connecting catheter during use, reduces the possibility of the connecting catheter swaying or sagging due to gravity, external forces, or other factors, and ensures that the connecting catheter is always in a stable working state, thereby guaranteeing the smooth progress of artificial liver treatment.

[0019] 4. In this invention, a retractable auxiliary support is provided on the side of the L-shaped support, and the auxiliary support adopts an arc-shaped design. This unique design allows it to adapt well to the bending shape of the connecting catheter, effectively preventing the connecting catheter from bending when it bends. Bending can not only affect the normal flow of fluid within the tubing and reduce the treatment effect, but may also damage the connecting catheter and shorten its service life. The auxiliary support design of this invention effectively solves this problem, providing reasonable support and guidance for the bending of the connecting catheter.

[0020] 5. In this invention, the positioning bolts are loosened to release them from the fixing of the adjusting slide rail. The adjusting slide rail then slides along the inner wall of the adjusting groove on the side of the catheter support. After sliding to the appropriate position, the positioning bolts are tightened to fix the adjusting slide rail. This method allows for convenient adjustment of the distance between the auxiliary support and the catheter support, thereby enabling flexible adjustment of the span of the connecting catheter support. This adjustability allows the invention to adapt to connecting catheters of different specifications and usage scenarios, improving the versatility and practicality of the equipment and providing greater convenience for clinical use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the adjustable and fixed device for the artificial liver treatment filter tubing of the present invention; Figure 2 This is a schematic diagram of the adjustable and fixed device for the artificial liver treatment filter tubing of the present invention from another perspective; Figure 3 This is a schematic diagram of the connecting catheter in the adjustable and fixed device for the artificial liver treatment filter tubing of the present invention; Figure 4 This is a schematic diagram of the catheter fixation assembly in the adjustable fixation device for the artificial liver treatment filter tubing of the present invention; Figure 5 This is a schematic diagram of the catheter clamping assembly in the adjustable fixing device for the artificial liver treatment filter tubing of the present invention; Figure 6 This is a cross-sectional schematic diagram of the limiting telescopic component in the adjustable fixing device for the artificial liver treatment filter pipeline of the present invention; Figure 7 This is a schematic diagram of the catheter support assembly in the adjustable fixing device for the artificial liver treatment filter tubing of the present invention; Figure 8 This is an exploded structural diagram of the catheter support assembly in the adjustable fixing device for artificial liver treatment filter tubing of the present invention.

[0022] In the picture: 1. Liver treatment filter body; 2. Connecting catheter; 3. Catheter fixation assembly; 4. Catheter support assembly; 101. Waste liquid filtration interface; 102. Arteriovenous end interface; 1021. Catheter connector; 301. Connector positioning seat; 3011. Conduit clamping assembly; 302, Mounting base; 3021, Sliding lever; 3022, Slot; 303. Connecting plate; 3031. Limiting telescopic assembly; 304, telescopic cylinder; 3041, abutment spring; 3042, telescopic column; 401, L-shaped stent; 4011, catheter support seat; 402. Auxiliary support; 4021. Adjusting slide rail; 4022. Adjusting slide groove; 403, Limiting slider; 4031, Limiting groove; 404, Positioning bolt. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-8 An adjustable fixing device for an artificial liver treatment filter is disclosed. This device is primarily used in the field of artificial liver treatment and aims to solve the fixing and support problems of the connecting catheter 2 during installation and use, ensuring the stability and reliability of the artificial liver treatment process. Its overall structure includes a connecting catheter 2 installed on the side of the liver treatment filter body 1. The connecting catheter 2 is detachably installed on the side of the liver treatment filter body 1. On the side of the liver treatment filter body 1, corresponding to the position of the connecting catheter 2, a catheter fixing assembly 3 for fixing the connecting catheter 2 and a catheter support assembly 4 for supporting the connecting catheter 2 are respectively installed.

[0025] To facilitate the connection of different types of pipelines and the discharge of waste liquid, in this embodiment: a waste liquid filtration interface 101 is installed on one side of the liver treatment filter body 1 to discharge waste liquid generated during treatment, ensuring the cleanliness of the treatment environment and the normal operation of the equipment; two arterial and venous end interfaces 102 are installed on the other side of the liver treatment filter body 1, and the end of the connecting catheter 2 is provided with a catheter connector 1021 that matches the arterial and venous end interface 102. This matching design allows the connecting catheter 2 to be accurately and securely connected to the arterial and venous end interface 102, ensuring smooth flow of blood or treatment fluid in the pipeline, reducing the risk of leakage, and improving the safety of treatment.

[0026] To ensure reliable fixation of the connecting catheter 2, in this embodiment, the catheter fixation assembly 3 includes a connector positioning seat 301. The connector positioning seat 301 is fixedly connected to the side of the liver treatment filter body 1 and corresponds to the arteriovenous end interface 102, providing a stable base for fixing the catheter connector 1021. The top and bottom of the connector positioning seat 301 are both equipped with catheter clamping assemblies 3011 for fixing the catheter connector 1021, fixing the catheter connector 1021 from both top and bottom directions, enhancing the stability of the fixation, preventing the connecting catheter 2 from loosening or falling off during use, and ensuring the continuity of treatment.

[0027] To achieve effective locking and fixing of the catheter connector 1021 by the catheter locking assembly 3011, in this embodiment: the catheter locking assembly 3011 includes a mounting base 302 fixedly connected to the connector positioning seat 301. The mounting base 302 provides a support platform for the installation of the sliding locking rod 3021. The sliding locking rod 3021 is slidably connected to the mounting base 302. A locking groove 3022 matching the sliding locking rod 3021 is provided on the catheter connector 1021 at a position corresponding to the sliding locking rod 3021. When the sliding locking rod 3021 is engaged in the locking groove 3022, the catheter connector 1021 is fixed. This locking method is simple to operate, reliable in fixing, and can quickly complete the installation and disassembly of the connecting catheter 2, improving work efficiency.

[0028] To ensure stable sliding of the sliding lever 3021 and automatic reset engagement, in this embodiment, a connecting plate 303 is fixedly connected to the top of the sliding lever 3021. The connecting plate 303 provides a connection point for the installation of the limiting telescopic component 3031. Limiting telescopic components 3031 are installed on both sides of the bottom of the connecting plate 303. These components restrict the sliding range of the sliding lever 3021 and provide a reset spring force, ensuring that the sliding lever 3021 automatically returns to its original position after being compressed and contracted, thus achieving engagement with the slot 3022 and guaranteeing the stability and reliability of the fixing effect.

[0029] To specifically realize the limiting and telescopic functions of the limiting telescopic component 3031, in this embodiment: the limiting telescopic component 3031 includes a telescopic cylinder 304 fixedly connected to the bottom of the connecting plate 303, and the telescopic cylinder 304 provides installation space for the internal structure. An abutment spring 3041 is fixedly connected to the inner wall of the telescopic cylinder 304, providing elastic force to allow the telescopic column 3042 to extend and retract. The other end of the abutment spring 3041 is fixedly connected to the telescopic column 3042, which is slidably connected to the inner wall of the telescopic cylinder 304, and the other end of the telescopic column 3042 is fixedly connected to the top of the mounting base 302. When the sliding lever 3021 is compressed, the telescopic column 3042 compresses the abutment spring 3041 and retracts into the telescopic cylinder 304; when the compression force disappears, the elastic force of the abutment spring 3041 causes the telescopic column 3042 to extend, driving the sliding lever 3021 to reset. This structure is simple and reliable, and can effectively realize the limiting and telescopic functions.

[0030] To provide basic support for the connecting catheter 2, in this embodiment, the catheter support assembly 4 includes an L-shaped bracket 401 fixedly connected to the side of the liver treatment filter body 1. The L-shaped bracket 401 has a stable structure and can withstand a certain weight and external force. The other end of the L-shaped bracket 401 is fixedly connected to a catheter support seat 4011 for supporting the connecting catheter 2. The catheter support seat 4011 provides a support surface for the bottom of the connecting catheter 2, increasing the stability of the connecting catheter 2 during use, preventing it from sagging or shaking due to gravity or external force, and ensuring smooth flow of fluid in the pipeline.

[0031] To accommodate the bending of the connecting conduit 2 and adjust the support span, in this embodiment, a slidably adjustable auxiliary support 402 is provided on the side of the conduit support 4011. The auxiliary support 402 has an arc-shaped design, which can better fit the bending shape of the connecting conduit 2, prevent the connecting conduit 2 from bending, protect the connecting conduit 2 from damage, and extend its service life. An adjusting slide rail 4021 is fixedly connected to the side of the auxiliary support 402, and an adjusting groove 4022 matching the adjusting slide rail 4021 is opened on the side of the conduit support 4011. The adjusting slide rail 4021 can slide within the adjusting groove 4022, thereby adjusting the distance between the auxiliary support 402 and the conduit support 4011, and thus changing the support span of the connecting conduit 2 to accommodate connecting conduits 2 of different specifications and bending degrees, improving the versatility and adaptability of the equipment.

[0032] To prevent the auxiliary support 402 from detaching from the conduit support 4011 during sliding, in this embodiment: two symmetrically arranged limiting sliders 403 are fixedly connected to one end of the top of the adjusting slide rail 4021. A limiting groove 4031, matching the limiting slider 403, is provided on the conduit support 4011 at the position corresponding to the limiting slider 403. The limiting slider 403 slides within the limiting groove 4031. When the auxiliary support 402 slides to its limit position, the limiting slider 403 is blocked by the end of the limiting groove 4031, thereby preventing the auxiliary support 402 from continuing to slide and detaching from the conduit support 4011, ensuring the safety and stability of the adjustment of the auxiliary support 402.

[0033] To fix the sliding position of the auxiliary support 402, in this embodiment, a positioning bolt 404 for positioning the adjusting slide rail 4021 is threadedly connected to the bottom of the conduit support 4011 at a position corresponding to the adjusting slide rail 4021. When the auxiliary support 402 slides to the desired position, tightening the positioning bolt 404 causes the top of the bolt to firmly press against the adjusting slide rail 4021, thereby restricting the sliding of the adjusting slide rail 4021 and fixing the auxiliary support 402 in its current position, ensuring stable and reliable support for the connecting conduit 2. This positioning method is simple to operate, has a good fixing effect, and can meet the support requirements of different usage scenarios.

[0034] When using: When installing the connecting catheter 2, the catheter connector 1021 at the end of the connecting catheter 2 is inserted into the arteriovenous end interface 102 on the side of the liver treatment filter body 1. During the insertion process, the catheter connector 1021 will squeeze the arc-shaped surface of the sliding lever 3021 on the connector positioning seat 301, causing the sliding lever 3021 to contract and compress the abutment spring 3041. When the sliding lever 3021 moves to the position of the slot 3022 on the catheter connector 1021, under the elastic force of the abutment spring 3041, the sliding lever 3021 automatically locks into the slot 3022, realizing a convenient and stable connection of the connecting catheter 2.

[0035] During the use of the connecting conduit 2, the conduit support 4011 supports the bottom of the connecting conduit 2, increasing the stability of the connecting conduit 2 during use. At the same time, the retractable auxiliary support 402 on the side of the L-shaped bracket 401 has an arc design that can adapt to the bending of the connecting conduit 2 and prevent the connecting conduit 2 from bending. When it is necessary to adjust the distance between the auxiliary support 402 and the catheter support 4011, loosen the positioning bolt 404 so that the positioning bolt 404 is not fixed to the adjusting slide rail 4021. Then, slide the adjusting slide rail 4021 on the inner wall of the adjusting groove 4022 on the side of the catheter support 4011. After sliding to the appropriate position, tighten the positioning bolt 404 so that the positioning bolt 404 fixes the adjusting slide rail 4021. This adjusts the support span of the connecting catheter 2 to meet the usage requirements of connecting catheters 2 with different specifications and curvatures, ensuring the stability and reliability of the artificial liver treatment process.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable fixing device for an artificial liver treatment filter pipeline, comprising a connecting conduit (2) installed on the side of the liver treatment filter body (1), characterized in that: The connecting catheter (2) is detachably installed on the side of the liver treatment filter body (1). A catheter fixing component (3) for fixing the connecting catheter (2) is installed on the side of the liver treatment filter body (1) at the position corresponding to the connecting catheter (2). A catheter support component (4) for supporting the connecting catheter (2) is also installed on the side of the liver treatment filter body (1) at the position corresponding to the connecting catheter (2).

2. The adjustable fixing device for the artificial liver treatment filter tubing according to claim 1, characterized in that: The liver treatment filter body (1) has a waste filtration interface (101) installed on one side and two arterial and venous end interfaces (102) installed on the other side. The end of the connecting catheter (2) is provided with a catheter connector (1021) that matches the arterial and venous end interface (102).

3. The adjustable fixing device for the artificial liver treatment filter tubing according to claim 2, characterized in that: The catheter fixation assembly (3) includes a connector positioning seat (301), which is fixedly connected to the side of the liver treatment filter body (1) and corresponds to the position of the arteriovenous end interface (102). The top and bottom of the connector positioning seat (301) are equipped with catheter clamping assemblies (3011) for fixing the catheter connector (1021).

4. The adjustable fixing device for the artificial liver treatment filter tubing according to claim 3, characterized in that: The conduit clamping assembly (3011) includes a mounting base (302) fixedly connected to the connector positioning seat (301), a sliding clamp (3021) is slidably connected to the mounting base (302), and a clamping groove (3022) matching the sliding clamp (3021) is provided on the conduit connector (1021) at a position corresponding to the sliding clamp (3021).

5. The adjustable fixing device for the artificial liver treatment filter tubing according to claim 4, characterized in that: The top of the sliding lever (3021) is fixedly connected to a connecting plate (303), and limit telescopic components (3031) are installed on both sides of the bottom of the connecting plate (303).

6. The adjustable fixing device for the artificial liver treatment filter tubing according to claim 5, characterized in that: The limiting telescopic assembly (3031) includes a telescopic cylinder (304) fixedly connected to the bottom of the connecting plate (303). An abutment spring (3041) is fixedly connected to the inner wall of the telescopic cylinder (304). The other end of the abutment spring (3041) is fixedly connected to a telescopic column (3042). The telescopic column (3042) is slidably connected to the inner wall of the telescopic cylinder (304), and the other end of the telescopic column (3042) is fixedly connected to the top of the mounting base (302).

7. The adjustable fixing device for the artificial liver treatment filter tubing according to claim 6, characterized in that: The catheter support assembly (4) includes an L-shaped bracket (401) fixedly connected to the side of the liver treatment filter body (1), and the other end of the L-shaped bracket (401) is fixedly connected to a catheter support seat (4011) for supporting the connecting catheter (2).

8. The adjustable fixing device for the artificial liver treatment filter tubing according to claim 7, characterized in that: The side of the catheter support (4011) is provided with a slidingly adjustable auxiliary support (402), and the side of the auxiliary support (402) is fixedly connected with an adjusting slide rail (4021). The side of the catheter support (4011) is provided with an adjusting groove (4022) that matches the adjusting slide rail (4021).

9. The adjustable fixing device for the artificial liver treatment filter tubing according to claim 8, characterized in that: Two symmetrically arranged limiting sliders (403) are fixedly connected to one end of the top of the adjusting slide rail (4021). A limiting groove (4031) matching the limiting slider (403) is opened on the guide support (4011) at the position corresponding to the limiting slider (403).

10. The adjustable fixing device for the artificial liver treatment filter tubing according to claim 9, characterized in that: The bottom of the conduit support (4011) and the position corresponding to the adjustment slide rail (4021) are also threaded with a positioning bolt (404) for positioning the adjustment slide rail (4021).

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