Postoperative monitoring device for cardiac surgery

Abstract

The invention discloses a postoperative monitoring device for cardiac surgery, and belongs to the technical field of cardiac postoperative monitoring devices. Comprising a drainage device, a shaping assembly is arranged on a drainage pipe of the drainage device, the shaping assembly comprises a shaping plate, mounting plates are symmetrically arranged on the two sides of the shaping plate in the width direction, one end of each mounting plate is fixed to the shaping plate, and sliding pipes are arranged on the two mounting plates; the outer wall of the sliding pipe is slidably connected to the other end of the mounting plate, an abutting plate is arranged at the end, facing the middle of the shaping plate, of the sliding pipe, the abutting plate is fixed to the sliding pipe, a fixing plate is arranged at the other end of the sliding pipe and fixed to the outer wall of the end of the sliding pipe, a sliding column is arranged in the sliding pipe, and the outer wall of the sliding column is fixed to the outer wall of the end of the sliding pipe. And one end of the sliding column is slidably connected to the interior of the sliding pipe. According to the technical scheme, the problem that a drainage channel is narrow or blocked due to the fact that a drainage tube is prone to bending deformation when making contact with the edge of a monitoring bed is solved.

Description

Technical Field

[0001] This invention belongs to the technical field of postoperative cardiac monitoring devices, specifically relating to a postoperative monitoring device for cardiac surgery. Background Technology

[0002] In cardiac surgery, postoperative monitoring is a crucial aspect of ensuring patient recovery, with drainage care being particularly important. After cardiac surgery, patients are prone to accumulating blood, exudate, and other fluids in the pleural cavity and pericardium. If these fluids are not drained promptly and effectively, serious complications such as pleural effusion and cardiac tamponade may occur, endangering the patient's life. Therefore, drainage devices have become essential medical equipment for postoperative monitoring in cardiac surgery.

[0003] Because postoperative patients need to rest in bed on a monitoring bed, drainage tubes are usually laid along the edge of the monitoring bed and extend to the negative pressure components under the bed. The edge of the monitoring bed is mostly a rigid, angular structure. When the drainage tube hangs downward, it will deform and bend at the contact point with the monitoring bed under the action of gravity. After the drainage tube is bent, it will cause the drainage channel to narrow or be completely blocked, making it impossible for the accumulated fluid to drain smoothly. This will not only reduce the quality of monitoring, but may also cause secondary damage due to the accumulation of fluid, increasing the patient's treatment risks and pain. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a postoperative monitoring device for cardiac surgery, which solves the problem that the drainage tube in the existing drainage device is prone to bending and deformation when it comes into contact with the edge of the monitoring bed, resulting in narrowing or blockage of the drainage channel.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention discloses a postoperative monitoring device for cardiac surgery, comprising a drainage device. The drainage tube of the drainage device is provided with a shaping assembly. The shaping assembly includes a shaping plate, and mounting plates are symmetrically arranged on both sides of the shaping plate in the width direction. One end of each mounting plate is fixed to the shaping plate. Each mounting plate has a sliding tube, the outer wall of which is slidably connected to the other end of the mounting plate. An abutment plate is provided on the end of the sliding tube facing the middle of the shaping plate, and the abutment plate is fixed to the sliding tube. A fixing plate is provided on the other end of the sliding tube, and the fixing plate is fixed to the outer wall of the end of the sliding tube. The sliding tube has a sliding mechanism inside. The sliding column has one end slidably connected to the inside of the sliding tube, and a retaining ring is provided on the other end of the sliding column. The retaining ring is fixed to the end face of the sliding column. A compression spring is provided between the retaining ring and the fixing plate. The compression spring is sleeved on the sliding column, and its two ends are respectively fixed to the fixing plate and the retaining ring. A connecting plate is symmetrically provided on the retaining ring. One end of the connecting plate is fixed to the retaining ring, and an adjusting screw is provided on the other end of the connecting plate. One end of the adjusting screw is fixed to the connecting plate, and the other end of the adjusting screw slides through the mounting plate. An adjusting nut is provided on the other end of the adjusting screw.

[0006] Furthermore, each of the two symmetrically arranged abutment plates is provided with a sliding groove, a sliding track on the sliding groove, and a slider inside the sliding track. The slider is slidably connected to the sliding track, and a lifting plate is provided on the slider. The lifting plate is fixedly connected to the slider and located inside the sliding groove. A return spring is provided inside the sliding tube. One end of the return spring is fixed to the abutment plate, and a stop block is provided on the other end of the return spring. The stop block is slidably connected to the inner wall of the sliding tube and fixed to the other end of the return spring. A traction rope is provided on the stop block. One end of the traction rope is fixed to the stop block, and the other end of the traction rope slides through the sliding tube and the abutment plate and is fixedly connected to the lifting plate. The other ends of the two traction ropes are respectively fixed to the upper and lower ends of the two lifting plates. An installation block is provided on the end of the two lifting plates that is not connected to the traction rope. An installation groove is provided on the abutment plate corresponding to the lifting trajectory of the installation block. A support spring is provided in the installation groove. One end of the support spring is fixed in the installation groove, and the other end of the support spring is fixed to the installation block.

[0007] Furthermore, each of the mounting plates is provided with a limiting screw at the other end. The limiting screw is slidably connected to the mounting plate, and an end plate is provided at one end of the limiting screw. One end of the end plate is fixed to the limiting screw, and the other end of the end plate is fixed to the fixing plate. A limiting nut is provided at the other end of the limiting screw, and the limiting nut is threadedly connected to the limiting screw.

[0008] Furthermore, each of the mounting plates on both sides of the limiting nut is provided with a push rod, which is slidably connected to the mounting plate. One end of the push rod is located within the mounting area of ​​the limiting nut, and the other end of the push rod is provided with a guide wheel. The guide wheel is rotatably connected to the mounting plate. Each of the plastic plates on both sides of the mounting plate is provided with a locking block. One end of the locking block is fixed to the plastic plate, and the other end of the locking block is provided with a slot for placing the drainage tube. Each slot is provided with a pull rope on both sides. One end of each of the two pull ropes is fixed to the inner wall of the slot on both sides, and the two pull ropes are arranged crosswise. The other ends of each of the two pull ropes are fixed to the two push rods on the side near the locking block, and the pull ropes are wound around the guide wheel.

[0009] Furthermore, the other end of the pull rope extends outward from inside the locking block.

[0010] Furthermore, a sponge layer is provided on the upper end of the card block where it contacts the guide tube.

[0011] Furthermore, a rubber layer is provided on the side of the lifting plate that contacts the drainage pipe.

[0012] The beneficial effects of this invention are as follows: In this technical solution, the shaping plate can be curved to guide and transition the bending part of the drainage tube, avoiding large bending angles that could cause blockage inside the drainage tube. At the same time, the abutment plate squeezes the bent and deformed part of the drainage tube to restore its shape, ensuring the unobstructed flow of the drainage tube and improving the monitoring effect after cardiac surgery.

[0013] Other advantages, objectives, and features of the invention will be set forth in the following description and will be apparent to those skilled in the art in some respects, or may be learned by practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0014] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration: Figure 1 This is a three-dimensional schematic diagram of the postoperative monitoring device for cardiac surgery of the present invention acting on a drainage tube; Figure 2 This is a three-dimensional schematic diagram of the postoperative monitoring device for cardiac surgery according to the present invention; Figure 3 This is a three-dimensional schematic diagram from another perspective of the postoperative monitoring device for cardiac surgery of the present invention; Figure 4 This is a schematic cross-sectional view of the postoperative monitoring device for cardiac surgery according to the present invention; Figure 5 This is a schematic cross-sectional view of the postoperative monitoring device for cardiac surgery of the present invention acting on a drainage tube. Figure 6 This is a top view schematic diagram of the pull rope and push rod assembly in the postoperative monitoring device for cardiac surgery of the present invention; Figure 7 This is a schematic diagram illustrating the application of the postoperative monitoring device for cardiac surgery of the present invention on a monitoring bed.

[0015] The following labels are shown in the attached diagram: 1. Monitoring bed; 2. Guardrail; 3. Clamping block; 4. Chest cavity; 5. Drainage tube; 6. Negative pressure assembly; 7. Shaping plate; 8. Mounting plate; 9. Sliding tube; 10. Fixing plate; 11. Sliding column; 12. Retaining ring; 13. Compression spring; 14. Connecting plate; 15. Adjusting screw; 16. Adjusting nut; 17. Abutment plate; 18. Slide groove; 19. Slide track; 20. Sliding block; 21. Lifting plate; 22. Mounting groove; 23. Mounting block; 24. Support spring; 25. Return spring; 26. Stop block; 27. Traction rope; 28. End plate; 29. ​​Limiting screw; 30. Limiting nut; 31. Locking block; 32. Top rod; 33. Guide wheel; 34. Pull rope. Detailed Implementation

[0016] like Figures 1-7 As shown, this invention discloses a postoperative monitoring device for cardiac surgery, comprising a drainage device. The drainage tube 5 of the drainage device is provided with a shaping component. The shaping component includes a shaping plate 7, with mounting plates 8 symmetrically arranged on both sides of the shaping plate 7 in the width direction. One end of each mounting plate 8 is fixed to the shaping plate 7. Each of the two mounting plates 8 is provided with a sliding tube 9. The shaping plate 7 can be understood as a plate-shaped component that can be bent as needed, such as those made of aluminum alloy or polypropylene as in the prior art. The outer wall of the sliding tube 9 is slidably connected to the other end of the mounting plate 8. An abutment plate 17 is provided on one end of the sliding tube 9 facing the middle of the shaping plate 7, and the abutment plate 17 is fixed to the sliding tube 9. A fixing plate 10 is provided on the other end of the sliding tube 9, and the fixing plate 10 is fixed to the sliding tube. On the outer wall of the end of the sliding tube 9, a sliding column 11 is provided inside the sliding tube 9. One end of the sliding column 11 is slidably connected to the inside of the sliding tube 9. A retaining ring 12 is provided on the other end of the sliding column 11. The retaining ring 12 is fixed to the end face of the sliding column 11. A compression spring 13 is provided between the retaining ring 12 and the fixing plate 10. The compression spring 13 is sleeved on the sliding column 11, and both ends of the compression spring 13 are fixed to the fixing plate 10 and the retaining ring 12, respectively. A connecting plate 14 is symmetrically provided on the retaining ring 12. One end of the connecting plate 14 is fixed to the retaining ring 12. An adjusting screw 15 is provided on the other end of the connecting plate 14. One end of the adjusting screw 15 is fixed to the connecting plate 14, and the other end of the adjusting screw 15 slides through the mounting plate 8. An adjusting nut 16 is provided on the other end of the adjusting screw 15.

[0017] The working principle of the above technical solution is as follows: When using postoperative cardiac monitoring devices such as drainage devices, first bend the shaping plate 7 into an arc shape, and connect the clamping block 3 on the back of the shaping plate 7 to the guardrail 2 of the monitoring bed 1 or the edge of the monitoring bed 1. Then place the drainage tube 5 between the two abutment plates 17. Since the drainage tube 5 will bend and deform at the edge of the monitoring bed 1 (it will become flat after bending), at this time, medical staff only need to press the retaining rings 12 on both sides at the same time to move the sliding column 11 inside the sliding tube 9. Under the action of the compression spring 13, the sliding tube 9 will be pushed to move on the mounting plate 8, thereby moving the abutment plate. 17 moves towards the drainage tube 5, thereby causing the abutment plates 17 on both sides to press the flat position of the drainage tube 5, so that the flat position of the drainage tube 5 is "restored" (of course, it is not difficult to understand that it is relatively difficult to completely restore it to a cylindrical shape, but it can be restored to a near-cylindrical state). When the drainage tube 5 is restored to the required state, it is only necessary to tighten the adjusting nut 16 to make it contact the mounting plate 8, that is, to block the outward movement of the adjusting screw 15 under the action of the compression spring 13, thereby maintaining the compression and reset state of the abutment plate 17 on the drainage tube 5, ensuring the smooth drainage effect of the drainage tube 5.

[0018] The technical effects achieved by the above technical solution are as follows: In this technical solution, the shaping plate 7 can be curved to guide and transition the bending part of the drainage tube 5, avoiding the problem of the drainage tube 5 being blocked due to large bending angle. At the same time, the abutment plate 17 squeezes the bent and deformed part of the drainage tube 5 to restore the shape of the bent part of the drainage tube 5, ensuring the unobstructed effect of the drainage tube 5, that is, improving the monitoring effect after cardiac surgery.

[0019] In one feasible embodiment, two symmetrically arranged abutment plates 17 are each provided with a groove 18, a slide rail 19 is provided on the groove 18, and a slider 20 is provided in the slide rail 19. The slider 20 is slidably connected in the slide rail 19, and a lifting plate 21 is provided on the slider 20. The lifting plate 21 is fixedly connected to the slider 20 and is located in the groove 18. A return spring 25 is provided inside the sliding tube 9. One end of the return spring 25 is fixed to the abutment plate 17, and a stop block 26 is provided on the other end of the return spring 25. The stop block 26 is slidably connected to the inner wall of the sliding tube 9 and is fixed to the other end of the return spring 25. A traction rope 27 is provided on the stop block 26, and one end of the traction rope 27 is fixed to the stop block 26. On 6, the other end of the traction rope 27 slides through the sliding tube 9 and the abutment plate 17 and is fixedly connected to the lifting plate 21. The other ends of the two traction ropes 27 are respectively fixed to the upper and lower ends of the two lifting plates 21 (equivalent to being fixed at two ends at different heights). The end of the two lifting plates 21 that is not connected to the traction rope 27 is provided with a mounting block 23. The abutment plate 17 corresponding to the lifting trajectory of the mounting block 23 is provided with a mounting groove 22. The mounting groove 22 is provided with a support spring 24. Due to the setting of the support spring 24, under normal conditions, the lifting plate 21 can be kept in the position on the abutment plate 17. One end of the support spring 24 is fixed in the mounting groove 22, and the other end of the support spring 24 is fixed on the mounting block 23.

[0020] The working principle of the above technical solution is as follows: Although the bend in the drainage tube 5 has been restored to some extent, its diameter is still relatively small. Therefore, tissue or blood clots in the drainage fluid can easily accumulate and cause blockage when flowing through this area. When blockage occurs, medical staff only need to continue pressing the sliding column 11 inward. Under the force transmission of the compression spring 13, the sliding tube 9 will continue to compress the drainage tube 5. At the same time, under the action of the end of the sliding column 11, it will compress the stop block 26. The stop block 26 will move inside the sliding tube 9, thereby driving the traction rope 27 to move. The moving traction rope 27... 7 will drive the lifting plate 21 to move on the abutment plate 17. Since the two traction ropes 27 are connected, the two lifting plates 21 are located at different heights. That is, the two traction ropes 27 will drive the two lifting plates 21 to move up and down respectively. With the application of squeezing force, the blockage position of the drainage tube 5 can be squeezed and "twisted". The advantage of this is that, through the "twisting" method, the inner wall of the drainage tube 5 can be deformed and misaligned, so that it can be better separated from the blockage. In this way, the blockage after squeezing and crushing can be better discharged, improving the clearing effect of the drainage tube 5.

[0021] It is easy to understand that after one squeezing and "twisting" is completed, the medical staff only need to release their fingers. Under the action of the support spring 24, the lifting plate 21 will return to its original position. Under the action of the return spring 25, the stop block 26 will drive the traction rope 27 to return to its original position. Under the action of the squeezing spring 13, the abutment plate 17 will return to its clamping position. At this time, the drainage tube 5 will return to its original position under its own elasticity, which will facilitate the next squeezing and "twisting" operation to clear the blockage of the drainage tube 5.

[0022] In one feasible embodiment, a limiting screw 29 is provided on the other end of the mounting plate 8. The limiting screw 29 is slidably connected to the mounting plate 8, and an end plate 28 is provided on one end of the limiting screw 29. One end of the end plate 28 is fixed to the limiting screw 29, and the other end of the end plate 28 is fixed to the fixing plate 10. A limiting nut 30 is provided on the other end of the limiting screw 29, and the limiting nut 30 is threadedly connected to the limiting screw 29.

[0023] During the unblocking operation of squeezing and "twisting", the squeezing spring 13 will drive the end plate 28 set on the fixed plate 10 to move, which in turn drives the limiting screw 29 to move on the mounting plate 8. When it moves to the point where the limiting nut 30 contacts the mounting plate 8, the continued movement of the fixed plate 10 is blocked. That is, the sliding tube 9 cannot continue to move towards the drainage tube 5, which can limit the movement distance of the abutment plate 17 and avoid the problem that the movement distance of the abutment tube is too large, resulting in a large squeezing force applied to the drainage tube 5, which could cause the drainage tube 5 to be squeezed and damaged. At the same time, the setting of the limiting screw 29 can also prevent the sliding tube 9 from rotating relative to the mounting plate 8, which would cause the abutment plate 17 to rotate and cause the contact effect between the abutment plate 17 and the drainage tube 5 to deteriorate.

[0024] It is easy to understand that although the movement of the sliding tube 9 is restricted, the sliding column 11 can still overcome the action of the compression spring 13 and continue to move inward, thereby driving the stop block 26 to move, and thus achieving the "twisting" effect. It should be noted that the setting position of the limit nut 30 can be selected according to the actual situation. For example, after the limit nut 30 contacts the mounting plate 8, the abutment plates 17 on both sides can squeeze the drainage tube 5 to a near-completely flat state (the distance between the inner walls of the drainage tube 5 is 1-2mm).

[0025] like Figure 7As shown, in one feasible embodiment, a push rod 32 is provided on the mounting plates 8 on both sides of the limiting nut 30. The push rod 32 is slidably connected to the mounting plate 8. One end of the push rod 32 is located in the mounting area of ​​the limiting nut 30 (which can be understood as the area covered by the projection of the limiting nut 30). A guide wheel 33 is provided on the outer side of the other end of the push rod 32. The guide wheel 33 is rotatably connected to the mounting plate 8. A locking block 31 is provided on the plastic plates 7 on both sides of the mounting plate 8. One end of the locking block 31 is fixed to the plastic plate 7. The other end of the locking block 31 is provided with a slot for placing the drainage tube 5. Pull ropes 34 are provided on both sides of the slot. One end of the two pull ropes 34 is fixed to the inner wall of the two sides of the slot, and the two pull ropes 34 are arranged crosswise. The other ends of the two pull ropes 34 are fixed to the two push rods 32 on the side near the locking block 31, and the pull ropes 34 are wound around the guide wheel 33.

[0026] The working principle of the above technical solution is as follows: When the "twisting" operation is performed, the limiting nut 30 moves toward the mounting plate 8, which in turn squeezes the end of the push rod 32, causing the push rod 32 to move, which in turn causes the pull rope 34 to move. Since the pull rope 34 is fixed crosswise on both sides of the slot, the movement of the pull rope 34 will pull the parts on both sides of the slot inward, thereby clamping and limiting the drainage tube 5. The advantage of this is that when the drainage tube 5 is "twisted", the drainage tube 5 at both ends of the bent part is clamped and limited, that is, the rotation of the bent part will not be transmitted outward, and will not affect the connection between the drainage tube 5 and the thoracic cavity 4 or the connection between the drainage tube 5 and the negative pressure component 6 (such as the water seal bottle in the prior art). The locking block 31 can be made of a flexible material, such as rubber or silicone. The advantage of this is that, due to the design of the locking groove, the outer wall of the locking block 31 on the outside of the groove is elastic and can automatically reset after the pull rope 34 is relaxed, avoiding continuous compression of the drainage tube 5. At the same time, it is preferable to put a columnar spring on the push rod 32. One end of the columnar spring is fixed to the mounting plate 8 and the other end is fixed to the locking block 31. The columnar spring is designed to facilitate the push rod 32 to drive the pull rope 34 to reset after the external force is lost, avoiding interference and obstruction to the reset of the locking groove.

[0027] In one feasible approach, the other end of the pull rope 34 extends outward from the inside of the locking block 31. This can be understood as creating a channel inside the locking block 31, with the pull rope 34 positioned within the channel, thus avoiding interference between the pull rope 34 and the drainage tube 5 during installation.

[0028] In one feasible embodiment, a sponge layer is provided on the upper part of the card block 31 where it contacts the guide tube, and a rubber layer is provided on the side of the lifting plate 21 that contacts the drainage tube 5. Both of these can protect the drainage tube 5 and prevent it from being squeezed or damaged by friction.

[0029] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A postoperative monitoring device for cardiac surgery, comprising a drainage device, wherein the drainage tube (5) of the drainage device is provided with a shaping component, characterized in that: The shaping assembly includes a shaping plate (7), and mounting plates (8) are symmetrically arranged on both sides of the shaping plate (7) in the width direction. One end of the mounting plate (8) is fixed to the shaping plate (7). Both mounting plates (8) are provided with sliding tubes (9). The outer wall of the sliding tube (9) is slidably connected to the other end of the mounting plate (8). An abutment plate (17) is provided on the end of the sliding tube (9) facing the middle of the shaping plate (7). The abutment plate (17) is fixed to the sliding tube (9). A fixing plate (10) is provided on the other end of the sliding tube (9). The fixing plate (10) is fixed to the outer wall of the end of the sliding tube (9). A sliding column (11) is provided inside the sliding tube (9). One end of the sliding column (11) is slidably connected to the inside of the sliding tube (9). The other end of the sliding column (11) is slidably connected to the other end of the sliding column (11). A retaining ring (12) is provided at one end, and the retaining ring (12) is fixed on the end face of the sliding column (11). A compression spring (13) is provided between the retaining ring (12) and the fixing plate (10). The compression spring (13) is sleeved on the sliding column (11), and the two ends of the compression spring (13) are respectively fixed on the fixing plate (10) and the retaining ring (12). A connecting plate (14) is symmetrically provided on the retaining ring (12). One end of the connecting plate (14) is fixed on the retaining ring (12). An adjusting screw (15) is provided on the other end of the connecting plate (14). One end of the adjusting screw (15) is fixed on the connecting plate (14), and the other end of the adjusting screw (15) slides through the mounting plate (8). An adjusting nut (16) is provided on the other end of the adjusting screw (15).

2. The postoperative monitoring device for cardiac surgery according to claim 1, characterized in that: Two symmetrically arranged abutment plates (17) are each provided with a sliding groove (18). A sliding track (19) is provided on the sliding groove (18), and a slider (20) is provided inside the sliding track (19). The slider (20) is slidably connected to the sliding track (19), and a lifting plate (21) is provided on the slider (20). The lifting plate (21) is fixedly connected to the slider (20) and is located inside the sliding groove (18). A return spring (25) is provided inside the sliding tube (9). One end of the return spring (25) is fixed to the abutment plate (17), and a stop block (26) is provided on the other end of the return spring (25). The stop block (26) is slidably connected to the inner wall of the sliding tube (9), and is fixed to the other end of the return spring (25). The stop block (26) is provided with a traction rope (27). One end of the traction rope (27) is fixed to the stop block (26). The other end of the traction rope (27) slides through the sliding tube (9) and the abutment plate (17) and is fixedly connected to the lifting plate (21). The other ends of the two traction ropes (27) are respectively fixed to the upper and lower ends of the two lifting plates (21). The end of the two lifting plates (21) that is not connected to the traction rope (27) is provided with an installation block (23). The abutment plate (17) corresponding to the lifting trajectory of the installation block (23) is provided with an installation groove (22). The installation groove (22) is provided with a support spring (24). One end of the support spring (24) is fixed in the installation groove (22), and the other end of the support spring (24) is fixed to the installation block (23).

3. A postoperative monitoring device for cardiac surgery according to claim 2, characterized in that: Each of the mounting plates (8) is provided with a limiting screw (29) at the other end. The limiting screw (29) is slidably connected to the mounting plate (8). One end of the limiting screw (29) is provided with an end plate (28). One end of the end plate (28) is fixed to the limiting screw (29), and the other end of the end plate (28) is fixed to the fixing plate (10). The other end of the limiting screw (29) is provided with a limiting nut (30), and the limiting nut (30) is threadedly connected to the limiting screw (29).

4. A postoperative monitoring device for cardiac surgery according to claim 3, characterized in that: A push rod (32) is provided on each of the mounting plates (8) on both sides of the limiting nut (30). The push rod (32) is slidably connected to the mounting plate (8). One end of the push rod (32) is located in the mounting area of ​​the limiting nut (30). A guide wheel (33) is provided on the outer side of the other end of the push rod (32). The guide wheel (33) is rotatably connected to the mounting plate (8). A locking block (31) is provided on each of the plastic plates (7) on both sides of the mounting plate (8). One end of the locking block (31) is provided with a locking block (31). Fixed on the molding plate (7), the other end of the card block (31) is provided with a slot for placing the drainage tube (5). Both sides of the slot are provided with pull ropes (34). One end of the two pull ropes (34) is fixed on the inner wall of the two sides of the slot, and the two pull ropes (34) are arranged in a cross manner. The other end of the two pull ropes (34) is fixed on the two top rods (32) near the side of the card block (31), and the pull ropes (34) are wrapped around the guide wheel (33).

5. A postoperative monitoring device for cardiac surgery according to claim 4, characterized in that: The other end of the pull rope (34) extends outward from the inside of the locking block (31).

6. A postoperative monitoring device for cardiac surgery according to claim 5, characterized in that: The upper part of the card block (31) is provided with a sponge layer at the contact part with the guide tube.

7. A postoperative monitoring device for cardiac surgery according to claim 2, characterized in that: A rubber layer is provided on the side of the lifting plate (21) that contacts the drainage pipe (5).

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