ECMO circuit fixing device

By designing an ECMO tubing fixing device with components such as clamps, mounting bases, and limiting ropes, the problems of skin damage and insufficient fixation strength of existing devices have been solved, achieving stable fixation and convenient use of ECMO tubing.

CN224523782UActive Publication Date: 2026-07-21NINGXIA MEDICAL UNIVERSITY GENERAL HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGXIA MEDICAL UNIVERSITY GENERAL HOSPITAL
Filing Date
2025-04-23
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing ECMO tubing fixation devices are prone to damaging the patient's skin after prolonged use, and their fixation strength is insufficient, affecting the stability and effectiveness of the device.

Method used

A fixing device was designed, which includes components such as clamping blocks, mounting bases, limiting ropes, and springs. The clamping blocks are sleeved on the outer wall of the ECMO tube, and the compression force of the limiting ropes and springs is used to achieve stable fixing of the ECMO tube, preventing the limiting ropes from sliding freely. When needed, multiple sets of ECMO tubes can be fixed by rotating and adjusting the limiting blocks and limiting plates.

Benefits of technology

It improves the fixation of the ECMO tube, avoids damage to the patient's skin, and enhances the stability and ease of use of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses ECMO pipeline fixing device relates to fixing device field, including ECMO pipe main part, the outer wall surface of ECMO pipe main part is equipped with the clamping block, the top of clamping block is provided with first rotation rod, first rotation rod top is provided with the mounting base, first rotation rod is equipped in the mounting base, one side of mounting base is provided with first side groove, one side first inner groove of first side groove, the sliding block is slidably installed in first inner groove. The utility model solves the problem of the poor use effect of the ECMO pipeline fixing device mentioned in the above background art, by setting up the mounting base, the bottom of mounting base is provided with the clamping block, when the device is in use, the mounting base can be sleeved on the outer wall of ECMO pipe main part through the clamping block, then press the pressboard, make pressboard slide to the second side groove that one side of limiting base is provided, and the sliding plate is slid to one side through the slide bar simultaneously.
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Description

Technical Field

[0001] This utility model relates to the field of fixing devices, specifically an ECMO tubing fixing device. Background Technology

[0002] ECMO (Extracorporeal Membrane Oxygenation) tubing is crucial in modern medical emergency and critical care. Traditional life support methods have many limitations when facing severe cardiopulmonary failure. For example, conventional ventilators can only assist breathing and cannot perform gas exchange and blood circulation functions, thus having limited effectiveness for patients with severely impaired cardiopulmonary function. The advent of ECMO tubing has broken this deadlock. It draws blood out of the body, performs gas exchange through the membrane lung, removes carbon dioxide, and delivers oxygen, then returns the oxygenated blood to the body, replacing some of the functions of the heart and lungs and buying time for the patient. From the initial simple extracorporeal circulation tubing to today's advanced ECMO tubing with high biocompatibility and low risk of thrombosis, its materials have been continuously optimized, and its diameter design is more scientific, adaptable to different patient groups, becoming a powerful weapon for saving lives. However, during use, due to the relatively large size of the ECMO tubing, the installation and fixation are often poor, which is not conducive to the normal use of the device.

[0003] Existing ECMO tubing securing devices typically place a sponge pad at the bottom of the ECMO tubing, and then place the ECMO tubing on the sponge pad. The sponge pad enhances the friction during ECMO tubing installation, preventing the ECMO tubing from slipping during installation. Medical tape is then used to secure the ECMO tubing in place, ensuring it is firmly installed in the designated position.

[0004] However, for existing ECMO tubing fixation devices, the medical tape used to fix the ECMO tubing is difficult to remove after prolonged contact with the skin, which can easily damage the patient's skin. Furthermore, the existing medical tape has insufficient fixing strength, affecting the fixation effect of the device. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide an ECMO tubing fixing device to solve the technical problem mentioned in the background art of poor performance of existing ECMO tubing fixing devices.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an ECMO tubing fixing device, comprising an ECMO tubing body, a clamping block sleeved on the outer wall of the ECMO tubing body, a first rotating rod at the top of the clamping block, a mounting base at the top of the first rotating rod, the first rotating rod being sleeved within the mounting base, a first side groove on one side of the mounting base, a first inner groove on one side of the first side groove, a slider slidably mounted within the first inner groove, a pull rod on one side of the slider, a limit block at one end of the pull rod, a first spring on one side of the slider, a second limit groove on one side of the mounting base, and the mounting base... The top of the base has a first limiting groove, and a first limiting plate is fitted inside the first limiting groove. A limiting rope is provided on the top of the first limiting plate. The top of the mounting base also has a rotating cavity, and a second rotating rod is fitted inside the rotating cavity. The second rotating rod is fixedly installed at the bottom of the limiting base. A slot is provided inside the limiting base. A second side groove is provided on one side of the limiting base, and a second inner groove is also provided inside the limiting base. A second spring is fixedly installed on one side of the second inner groove. One end of the second spring is connected to a sliding plate. A sliding rod is provided on one side of the first limiting plate, and a pressing plate is provided at one end of the sliding rod. A locking block is also fixedly installed on one side of the sliding plate.

[0007] By adopting the above technical solution, the problem of poor performance of existing ECMO tubing fixing devices mentioned in the background art is solved. The device is equipped with a mounting base, the bottom of which has a clamping block. When in use, the mounting base, through the clamping block, can be fitted onto the outer wall of the ECMO tubing body. Then, pressing the button plate causes it to slide into the second side groove on one side of the limiting base. Simultaneously, the button plate, via a sliding rod, causes the sliding plate to slide to one side, dislodging the locking block and protrusion on one side of the sliding plate from the locking groove. The limiting rope is then fitted into the locking groove within the limiting base. The limiting base, via a second rotating rod, is fitted onto the top of the mounting base. The limiting rope is installed in the first limiting groove on the top of the mounting base via a first limiting plate. After the limiting rope is fitted, releasing the button plate causes the second spring on one side of the sliding plate to push the sliding plate to one side, causing the locking block and protrusion to slide back in. Inside the slot, the clamping block and the protrusion, through the second spring, apply a squeezing force to the limiting rope, thereby limiting the rope and preventing it from sliding freely. This also ensures that the ECMO tube body and the mounting base are fixed in the rotating position by the limiting rope, achieving the desired effect. When two sets of ECMO tube bodies need to be installed, rotate the clamping block and the limiting base to place the two sets of ECMO tube bodies onto the two clamping blocks respectively. Then, pull the limiting block to one side and rotate it to release the protrusion on one side of the limiting block from limiting the first limiting plate. Then, place the first limiting plate into the second limiting groove and rotate the limiting block to one side of the second limiting groove so that the protrusion on one side of the limiting block contacts the first limiting plate again, thereby achieving the limiting effect once more. Finally, press the button again to put the limiting rope back into the slot, allowing the device to perform the limiting function again.

[0008] The present invention is further configured such that a circular block is provided on one side of the first inner groove, the pull rod is sleeved inside the circular block, and one end of the first spring is fixedly installed on one side of the circular block.

[0009] Preferably, a ring block is provided on one side of the first inner groove, the pull rod is sleeved in the ring block, and one end of the first spring is fixedly installed on one side of the ring block, so that the ring block can block the first spring and prevent the first spring from falling out of the first inner groove, thereby affecting the normal use of the limit block.

[0010] The present invention is further configured such that the inner wall surface of the card block is provided with multiple sets of protrusions, and the card block and the protrusions are disposed in the card slot.

[0011] Preferably, by providing multiple sets of protruding strips on the inner wall of the card block, and the card block and protruding strips being disposed in the card groove, the card block and protruding strips can apply a compressive force to the limiting rope sleeved in the card groove, thereby achieving a fixed installation effect on the limiting rope.

[0012] The present invention is further configured such that the diameter of the slot is the same as the diameter of the limiting rope, and the limiting rope is sleeved inside the slot.

[0013] Preferably, by making the diameter of the slot the same as the diameter of the limiting rope, and by fitting the limiting rope inside the slot, the installation of the limiting rope is facilitated, enabling the device to achieve its intended use.

[0014] The present invention is further provided with a corner support pad on one side of the clamping block, and the corner support pad is made of a soft-touch material.

[0015] Preferably, a support pad is provided on one side of the clamp. The support pad is made of a soft material. When the clamp is fitted onto the outer wall of the ECMO tube body, the support pad can contact the patient's limb, thereby providing support for the clamp and preventing the device from rotating during installation, which would affect the normal use of the device.

[0016] The present invention is further configured such that the first side groove is a fan-shaped groove, the diameter of the fan-shaped groove is greater than the length of the limiting block, and the first side groove begins on one side of the first limiting groove and the second limiting groove.

[0017] Preferably, by setting the first side groove as a fan-shaped groove with a diameter greater than the length of the limiting block, and starting the first side groove on one side of the first and second limiting grooves, the limiting block can be rotated to avoid collision between the limiting block and the mounting base, thereby affecting the use effect of the limiting block.

[0018] The present invention is further configured such that one end of the slide rod and one side of the pressing plate are both disposed in the second side groove, and the cross-sectional area of ​​the pressing plate is smaller than the cross-sectional area of ​​the second side groove.

[0019] Preferably, by setting one end of the slide rod and one side of the button plate in the second side groove, and the cross-sectional area of ​​the button plate is smaller than the cross-sectional area of ​​the second side groove, the button plate can be slidably installed in the second side groove, avoiding collision between the button plate and the limiting base, thereby affecting the use effect of the button plate.

[0020] The present invention is further configured such that a protrusion is provided on one side of the limiting block, and the protrusion contacts one side of the first limiting plate.

[0021] Preferably, by providing a protrusion on one side of the limiting block, and the protrusion contacting one side of the first limiting plate, the limiting block can play a limiting role on the first limiting plate, thereby improving the practicality of the device.

[0022] In summary, the present invention has the following main advantages:

[0023] 1. This utility model, by incorporating a clamping block, a first rotating rod, a support corner pad, a mounting base, a first side groove, a first limiting groove, a second limiting groove, a first inner groove, a slider, a pull rod, a limiting block, a first spring, a first limiting plate, a limiting rope, a limiting base, a second rotating rod, a second inner groove, a slot, a second side groove, a second spring, a sliding plate, a sliding rod, a pressing plate, a clamping block, and a protruding strip, solves the problem of poor performance of existing ECMO tubing fixing devices mentioned in the background art. By providing a mounting base, the device... The bottom of the mounting base is equipped with a clamping block. When the device is in use, the mounting base can be fitted onto the outer wall of the ECMO tube body via the clamping block. Then, the pressing plate is pressed, causing it to slide into the second side groove opened on one side of the limiting base. At the same time, the pressing plate slides to one side via the sliding rod, and the locking block and protrusion on one side of the sliding plate slide out of the locking groove. The limiting rope is then fitted into the locking groove opened inside the limiting base. The limiting base is fitted onto the top of the mounting base via the second rotating rod, and the limiting rope is installed on the top of the mounting base via the first limiting plate. After the limiting rope is installed in the first limiting groove, loosening the push plate will cause the second spring on one side of the slide plate to push the slide plate to one side, allowing the locking block and the protrusion to slide back into the locking groove. The locking block and the protrusion, through the second spring, can apply a squeezing force to the limiting rope, thus limiting the rope and preventing it from sliding freely. This also ensures that the ECMO tube body and the mounting base are fixed in the rotating position by the limiting rope, achieving the desired effect. When two sets of ECMO tube bodies need to be installed, the rotation... The moving clamp and limiting base are used to fit the two sets of ECMO tube bodies onto the two sets of clamps respectively. Then, the limiting block is pulled to one side and rotated so that the protrusion on one side of the limiting block releases the limiting of the first limiting plate. Then, the first limiting plate is fitted into the second limiting groove, and the limiting block is rotated to one side of the second limiting groove so that the protrusion on one side of the limiting block contacts the first limiting plate again, thereby achieving the limiting function again. Then, the pressing plate is pressed again so that the limiting rope is fitted into the slot again, so that the device can play the limiting function again.

[0024] 2. This utility model is equipped with a clamping block, and the side of the clamping block is equipped with a corner support pad. The corner support pad is made of a soft material. When the device is installed, the corner support pad will come into contact with the patient's skin, thereby providing support for the main body of the device and preventing the device from flipping over during installation, which would affect the normal use of the device. Attached Figure Description

[0025] Figure 1 This is an installation diagram of the main structure of this utility model;

[0026] Figure 2 This utility model Figure 1 Enlarged view of A in the middle;

[0027] Figure 3 This is a cross-sectional view of the first inner groove of this utility model;

[0028] Figure 4 This is a structural diagram of the limiting base of this utility model;

[0029] Figure 5 This is a cross-sectional view of the limiting base of this utility model;

[0030] Figure 6 This is a detailed drawing of the clamping block structure of this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. ECMO tube body; 2. Clamping block; 21. First rotating rod; 22. Supporting corner pad; 3. Mounting base; 4. First side groove; 5. First limiting groove; 6. Second limiting groove; 7. First inner groove; 8. Slider; 81. Pull rod; 82. Limiting block; 9. First spring; 10. First limiting plate; 11. Limiting rope; 12. Limiting base; 121. Second rotating rod; 13. Second inner groove; 14. Slot; 15. Second side groove; 16. Second spring; 17. Slide plate; 171. Slide rod; 172. Press plate; 18. Clamping block; 181. Protruding strip. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] The embodiments of this utility model will be described below based on its overall structure.

[0035] Please see Figures 1-6The system includes an ECMO tube body 1, a clamping block 2 fitted on the outer wall of the ECMO tube body 1, a first rotating rod 21 at the top of the clamping block 2, a mounting base 3 at the top of the first rotating rod 21, the first rotating rod 21 fitted inside the mounting base 3, a first side groove 4 on one side of the mounting base 3, a first inner groove 7 on one side of the first side groove 4, a slider 8 slidably mounted inside the first inner groove 7, a pull rod 81 on one side of the slider 8, a limit block 82 at one end of the pull rod 81, a first spring 9 on one side of the slider 8, a second limiting groove 6 on one side of the mounting base 3, a first limiting groove 5 at the top of the mounting base 3, and a first limiting... Position plate 10, the top of the first limiting plate 10 is provided with a limiting rope 11, the top of the mounting base 3 is also provided with a rotating cavity, the rotating cavity is fitted with a second rotating rod 121, the second rotating rod 121 is fixedly installed at the bottom of the limiting base 12, the limiting base 12 is provided with a slot 14, the limiting base 12 is provided with a second side groove 15 on one side, and the limiting base 12 is also provided with a second inner groove 13, a second spring 16 is fixedly installed on one side of the second inner groove 13, one end of the second spring 16 is connected to a slide plate 17, a slide rod 171 is provided on one side of the first limiting plate 10, a pressing plate 172 is provided at one end of the slide rod 171, and a locking block 18 is fixedly installed on one side of the slide plate 17.

[0036] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 A circular block is provided on one side of the first inner groove 7. The pull rod 81 is sleeved in the circular block. One end of the first spring 9 is fixedly installed on one side of the circular block. By providing a circular block on one side of the first inner groove 7, the pull rod 81 is sleeved in the circular block, and one end of the first spring 9 is fixedly installed on one side of the circular block, the circular block can act as a block to prevent the first spring 9 from falling out of the first inner groove 7, thereby affecting the normal use of the limit block 82.

[0037] For details regarding the above embodiments, please refer to [link / reference]. Figure 4 The inner wall surface of the card block 18 is provided with multiple sets of protrusions 181. The card block 18 and the protrusions 181 are disposed in the card groove 14. By providing multiple sets of protrusions 181 on the inner wall surface of the card block 18 and disposing of the card block 18 and the protrusions 181 in the card groove 14, the card block 18 and the protrusions 181 can apply a compressive force to the limiting rope 11 sleeved in the card groove 14, thereby achieving a fixed installation effect on the limiting rope 11.

[0038] For details regarding the above embodiments, please refer to the figures and... Figure 4 The diameter of the slot 14 is the same as the diameter of the limiting rope 11. The limiting rope 11 is sleeved in the slot 14. By making the diameter of the slot 14 the same as the diameter of the limiting rope 11, and the limiting rope 11 is sleeved in the slot 14, it is convenient to install the limiting rope 11, so that the device can achieve the desired effect.

[0039] For details regarding the above embodiments, please refer to [link / reference]. Figure 6 A support pad 22 is provided on one side of the clamp 2. The support pad 22 is made of a soft material. By providing a support pad 22 on one side of the clamp 2, when the clamp 2 is fitted onto the outer wall of the ECMO tube body 1, the support pad 22 can contact the patient's limb, thereby providing support for the clamp 2 and preventing the device from rotating during installation, which would affect the normal use of the device.

[0040] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 The first side groove 4 is configured as a fan-shaped groove, the diameter of which is greater than the length of the limiting block 82. The first side groove 4 starts on one side of the first limiting groove 5 and the second limiting groove 6. By configuring the first side groove 4 as a fan-shaped groove, the diameter of which is greater than the length of the limiting block 82, and the first side groove 4 starting on one side of the first limiting groove 5 and the second limiting groove 6, the limiting block 82 can be rotated, thus preventing the limiting block 82 from colliding with the mounting base 3 and affecting the use effect of the limiting block 82.

[0041] For details regarding the above embodiments, please refer to [link / reference]. Figure 4 One end of the slide rod 171 and one side of the button plate 172 are both set in the second side groove 15. The cross-sectional area of ​​the button plate 172 is smaller than the cross-sectional area of ​​the second side groove 15. By setting one end of the slide rod 171 and one side of the button plate 172 in the second side groove 15, and the cross-sectional area of ​​the button plate 172 is smaller than the cross-sectional area of ​​the second side groove 15, the button plate 172 can be slidably installed in the second side groove 15, avoiding collision between the button plate 172 and the limiting base 12, thereby affecting the use effect of the button plate 172.

[0042] For details regarding the above embodiments, please refer to [link / reference]. Figure 3 A protrusion is provided on one side of the limiting block 82, and the protrusion contacts one side of the first limiting plate 10. By providing a protrusion on one side of the limiting block 82 and having the protrusion contact one side of the first limiting plate 10, the limiting block 82 can play a limiting role on the first limiting plate 10, thereby improving the practicality of the device.

[0043] In practical operation, when the ECMO tube body 1 is set as a set, the two sets of clamping blocks 2 at the bottom of the mounting base 3 are both sleeved on the outer wall of the ECMO tube body 1, and the first limiting plate 10 is sleeved in the first limiting groove 5 opened at the top of the mounting base 3. A limiting rope 11 is provided on one side of the first limiting plate 10. After the limiting rope 11 is wrapped around the patient's limb once, one end of the limiting rope 11 is sleeved in the slot 14 opened in the limiting base 12. At the same time as sleeved, the pressing plate 172 is pressed, so that the pressing plate 172 slides into the limiting base. Within the second side groove 15 opened on one side of the 12, the pressing plate 172 simultaneously slides the slide plate 17 to one side via the sliding rod 171. The locking block 18 and protrusion 181 on one side of the slide plate 17 will slide out of the locking groove 14. The limiting rope 11 is then fitted into the locking groove 14 opened within the limiting base 12. The limiting base 12 is fitted onto the top of the mounting base 3 via the second rotating rod 121. The limiting rope 11 is installed in the first limiting groove 5 opened on the top of the mounting base 3 via the first limiting plate 10. After the limiting rope 11 is fitted, the pressing plate 172 is loosened, and the slide plate 17 moves to one side. The second spring 16 pushes the slide plate 17 to one side, causing the locking block 18 and the protrusion 181 to slide back into the slot 14. The locking block 18 and the protrusion 181, through the second spring 16, apply a compressive force to the limiting rope 11, thus limiting the rope 11 and preventing it from sliding freely. This also ensures that the ECMO tube body 1 and the mounting base 3 are fixed in the rotating position by the limiting rope 11, achieving the desired effect. When two sets of ECMO tube bodies 1 need to be installed, the clamping block 2 and the limiting base 12 are rotated to position the two... The ECMO tube body 1 is respectively fitted onto the two sets of clamping blocks 2. Then, the limiting block 82 is pulled to one side and rotated so that the protrusion on one side of the limiting block 82 releases the limiting of the first limiting plate 10. Then, the first limiting plate 10 is fitted into the second limiting groove 6, and the limiting block 82 is rotated to one side of the second limiting groove 6 so that the protrusion on one side of the limiting block 82 contacts the first limiting plate 10 again, thereby achieving the limiting function again. Then, the pressing plate 172 is pressed again so that the limiting rope 11 is fitted into the slot 14 again, so that the device can play the limiting function again.

[0044] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, but such modifications, substitutions, and variations are protected by patent law as long as they fall within the scope of the claims of the present invention.

Claims

1. An ECMO tubing fixing device, comprising an ECMO tubing body (1), characterized in that: The outer wall of the ECMO tube body (1) is fitted with a clamping block (2). A first rotating rod (21) is provided on the top of the clamping block (2). A mounting base (3) is provided on the top of the first rotating rod (21). The first rotating rod (21) is fitted inside the mounting base (3). A first side groove (4) is provided on one side of the mounting base (3). A first inner groove (7) is provided on one side of the first side groove (4). A slider (8) is slidably installed in the first inner groove (7). A pull rod (81) is provided on one side of the slider (8). A limit block (82) is provided at one end of the pull rod (81). A first spring (9) is also provided on one side of the slider (8). A second limiting groove (6) is provided on one side of the mounting base (3). A first limiting groove (5) is provided on the top of the mounting base (3). A first limiting plate is fitted inside the first limiting groove (5). (10) A limiting rope (11) is provided on the top of the first limiting plate (10). A rotating cavity is also provided on the top of the mounting base (3). A second rotating rod (121) is sleeved in the rotating cavity. The second rotating rod (121) is fixedly installed at the bottom of the limiting base (12). A slot (14) is provided in the limiting base (12). A second side groove (15) is provided on one side of the limiting base (12). A second inner groove (13) is also provided in the limiting base (12). A second spring (16) is fixedly installed on one side of the second inner groove (13). A slide plate (17) is connected to one end of the second spring (16). A sliding rod (171) is provided on one side of the first limiting plate (10). A pressing plate (172) is provided at one end of the sliding rod (171). A locking block (18) is also fixedly installed on one side of the slide plate (17).

2. The ECMO tubing fixing device according to claim 1, characterized in that: A circular block is provided on one side of the first inner groove (7), the pull rod (81) is sleeved inside the circular block, and one end of the first spring (9) is fixedly installed on one side of the circular block.

3. The ECMO tubing fixing device according to claim 1, characterized in that: The inner wall surface of the card block (18) is provided with multiple sets of protrusions (181), and the card block (18) and the protrusions (181) are disposed in the card slot (14).

4. The ECMO tubing fixing device according to claim 1, characterized in that: The diameter of the slot (14) is the same as the diameter of the limiting rope (11), and the limiting rope (11) is sleeved in the slot (14).

5. The ECMO tubing fixing device according to claim 1, characterized in that: One side of the clamping block (2) is provided with a corner support pad (22), which is made of a soft-touch material.

6. The ECMO tubing fixing device according to claim 1, characterized in that: The first side groove (4) is configured as a fan-shaped groove, the diameter of which is greater than the length of the limiting block (82), and the first side groove (4) starts on one side of the first limiting groove (5) and the second limiting groove (6).

7. The ECMO tubing fixing device according to claim 1, characterized in that: One end of the slide bar (171) and one side of the push plate (172) are both located in the second side groove (15), and the cross-sectional area of ​​the push plate (172) is smaller than the cross-sectional area of ​​the second side groove (15).

8. The ECMO tubing fixing device according to claim 1, characterized in that: A protrusion is provided on one side of the limiting block (82), and the protrusion contacts one side of the first limiting plate (10).