Chest surgery postoperative drainage tube fixing structure
By introducing a buffer block and an elastic ring into the drainage tube fixing structure, the problem of pressure distribution failure in existing fixing methods is solved, achieving stable fixing of the drainage tube and improving drainage efficiency.
Patent Information
- Application Number
- CN202610167166.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-05
- Publication Date
- 2026-03-20
AI Technical Summary
Existing methods of fixing drainage tubes cannot effectively absorb or disperse the pressure acting vertically or obliquely on the drainage tube, leading to localized deformation, narrowing, or even blockage of the lumen, thus affecting drainage efficiency.
The system employs a movable frame and fixed shell structure made of elastic deformable material with a buffer block. Through the design of sliding connections and buffer blocks, the pressure on the drainage tube is converted into a smooth displacement. Combined with a two-stage buffer mechanism of elastic rings and springs, it reduces pressure and pain on the patient's wound and prevents tube blockage.
It effectively reduces pressure and pain on the drainage tube, ensures smooth drainage, reduces the risk of accidental tube removal and suture tearing, and improves drainage efficiency.
Smart Images
Figure CN121695392A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of medical devices, in particular to a thoracic surgery postoperative drainage tube fixing structure. BACKGROUND
[0002] Thoracic surgery postoperative often needs to indwell a chest drainage tube to discharge effusion and promote wound healing. Ensuring that the drainage tube is in place, unobstructed and fixed reliably is a key link in postoperative care. Currently, medical adhesive dressings or special fixing patches are mainly used for fixation in clinical practice, which are pasted on the skin through adhesive backing and use slot, clamping piece and other structures to clamp and press the pipeline. Although this type of way can maintain the position of the pipeline under normal conditions, the structural design mainly aims at preventing the pipeline from falling off and shifting in the plane direction, and lacks the ability to buffer the pressure acting vertically or obliquely on the drainage tube.
[0003] In actual clinical situations, patient body position changes, medical staff operations, equipment accidental pulling or patient self-activity may all cause the drainage tube to be subjected to pressure perpendicular to the body surface or at an angle to the body surface. The existing fixing patch structure cannot effectively absorb or disperse such pressure, so that the pressure is directly transmitted to the drainage tube through the fixing patch, which can cause the tube cavity to be locally pressed and deformed, narrowed or even occluded, seriously affecting the normal flow of the drainage fluid and leading to a decrease or failure of the drainage efficiency. SUMMARY
[0004] In order to overcome the shortcomings presented in the background art, the present application provides a thoracic surgery postoperative drainage tube fixing structure.
[0005] The technical implementation scheme of the present application is as follows: a thoracic surgery postoperative drainage tube fixing structure, comprising: a fixing patch, the fixing patch being fixedly connected with a fixing shell: a first moving shell being slidingly connected to the fixing shell; a mounting shell being fixedly connected to the first moving shell, the mounting shell being used for fixing a drainage tube; a plurality of first moving racks and a plurality of second moving racks, the first moving racks being fixedly connected to the fixing patch, the second moving racks being fixedly connected to the first moving shell, the first moving racks and the second moving racks being located in the fixing shell and the first moving shell, the first moving racks being slidingly connected with corresponding second moving racks, and a buffer block being fixedly connected between the first moving rack and the first moving shell and between the second moving rack and the fixing patch.
[0006] Further, the buffer block is made of an elastically deformable material, and the buffer block is arc-shaped.
[0007] To further explain, both the first movable frame and the second movable frame are fixedly connected to a first fixing block, and the two corresponding first fixing blocks are jointly fixedly connected to an elastic ring, which is located between the corresponding first movable frame and the corresponding second movable frame.
[0008] To further explain, a first connecting block is fixedly connected inside the elastic ring.
[0009] To further explain, the cross-section of the elastic ring is elliptical, and the minor axis of the ellipse is parallel to the centerline of the first movable shell, and the first connecting block is located on the minor axis corresponding to the elastic ring.
[0010] Further explanation includes: The second connecting block has two symmetrically distributed groups, each group consisting of several evenly distributed circumferentially, and is respectively disposed on both sides of the mounting shell; The number of second fixing blocks is the same as the number of second connecting blocks, and they are respectively fixed to the side of the corresponding second connecting block away from the mounting shell; Two arc-shaped rods are symmetrically distributed and slidably connected to both sides of the mounting shell. Several L-shaped rods are fixed to the opposite side of each symmetrically distributed arc-shaped rod. All L-shaped rods on the same arc-shaped rod are fixed to a compression ring. An arc-shaped through groove is provided on the second fixing block, and the compression ring slides in the arc-shaped through groove corresponding to the second fixing block.
[0011] To further explain, the outer diameter of the compression ring is smaller than the inner diameter of the mounting shell, and the second fixing block is inclined.
[0012] To further explain, an adhesive pad is provided on the side of the second fixing block away from the mounting shell for fixing the drainage tube.
[0013] Further explanation includes: The movable block has two symmetrically distributed parts, each detachably connected to the corresponding arc-shaped rod. The mounting shell is provided with symmetrically distributed sliding grooves. The movable block slides in the corresponding sliding groove, and there is a gap between the movable block and the groove wall of the corresponding sliding groove. Two symmetrically distributed extrusion blocks are fixed to the corresponding moving blocks, and the extrusion blocks are in contact with the groove wall of the corresponding slide.
[0014] Further explanation includes: The second movable shell has two symmetrically distributed shells, which are slidably connected to both sides inside the mounting shell. A spring is fixed between the second movable shell and the mounting shell, and the second movable shell is fixedly connected to the corresponding second connecting block.
[0015] Compared with the prior art, the present application has the following advantages: the present application converts the pressure acting on the drainage tube into gentle displacement through the buffer block, reduces the compression and pain of the skin of the wound of the patient, and at the same time, the installation shell directly protects the pipeline from being pressed and folded, and in combination with the overall buffer, ensures the smooth drainage and prevents the clinical risk caused by the blockage of the pipeline.
[0016] When the drainage tube is accidentally pulled, the pulling force is converted into a buffer stroke through the deformation of the spring and the reserved displacement of the drainage tube in the shell, so as to weaken the direct conduction of the pulling force to the wound, reduce the probability of accidental extubation, and reduce the tearing damage to the new tissue or suture. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is a schematic diagram of the three-dimensional structure of the present application; Figure 2 is a sectional view of the three-dimensional structure of the installation shell of the present application; Figure 3 is a sectional view of the three-dimensional structure of the fixed shell and the first movable shell of the present application; Figure 4 is a schematic diagram of the three-dimensional structure of the first movable frame and the second movable frame of the present application; Figure 5 is a schematic diagram of the three-dimensional structure of the second connecting block and the second fixed block of the present application; Figure 6 is a schematic diagram of the three-dimensional structure of the L-shaped rod and the extrusion ring of the present application; Figure 7 is a sectional view of the three-dimensional structure of the second movable shell of the present application; Figure 8 is a schematic diagram of the three-dimensional structure of the movable block and the extrusion block of the present application.
[0018] In the above drawings: 1: fixed patch, 2: fixed shell, 3: first movable shell, 4: installation shell, 5: drainage tube, 6: first movable frame, 61: second movable frame, 7: buffer block, 8: first fixed block, 9: elastic ring, 10: first connecting block, 12: second connecting block, 13: second fixed block, 14: arc-shaped rod, 15: L-shaped rod, 16: extrusion ring, 17: adhesive pad, 18: movable block, 19: extrusion block, 20: second movable shell. DETAILED DESCRIPTION
[0019] The present application will now be described more fully hereinafter with reference to the accompanying drawings, in which currently preferred embodiments of the application are shown. The application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of thorough and complete disclosure of the application and are fully presented by the scope of the application to skilled artisans.
[0020] Example 1
[0021] This embodiment discloses a drainage tube fixation structure after thoracic surgery, which aims to optimize the shortcomings of existing drainage tube fixators in dealing with external pressure during normal use.
[0022] like Figures 1-4 As shown, the fixing structure includes: a fixing patch 1, to which a fixing shell 2 is fixedly connected; a first movable shell 3, slidably connected to the fixing shell 2; a mounting shell 4, fixedly connected to the first movable shell 3, which is used to fix the drainage tube 5; a first movable frame 6 and a second movable frame 61, each having several units; the first movable frame 6 is fixedly connected to the fixing patch 1, and the second movable frame 61 is fixedly connected to the first movable shell 3; both the first movable frame 6 and the second movable frame 61 are located inside the fixing shell 2 and the first movable shell 3; the first movable frame 6 is slidably connected to the corresponding second movable frame 61; and buffer blocks 7 are fixedly connected between the first movable frame 6 and the first movable shell 3, and between the second movable frame 61 and the fixing patch 1.
[0023] In the above scheme, the fixing patch 1 is an existing device made of flexible material, with its lower side being the adhesive surface, used to fix the device to the patient's skin; the fixing shell 2 and the first movable shell 3 are both made of rigid material, and the areas of the fixing shell 2 and the first movable shell 3 projected onto the horizontal plane are both smaller than the area of the fixing patch 1 projected onto the horizontal plane; the mounting shell 4 is located on the upper side of the first movable shell 3. In this embodiment, after the drainage tube 5 passes through the mounting shell 4, the left and right ends of the mounting shell 4 are fixed to the outer wall of the drainage tube 5 by adhesive bonding; the first movable frame 6 and the second movable frame 61 are both composed of a horizontal part and a vertical part, and the corresponding two are centrally symmetrically distributed, wherein the buffer block 7 on the first movable frame 6 is located on the upper side of its horizontal part, and the buffer block 7 on the second movable frame 61 is located on the lower side of its horizontal part.
[0024] like Figure 4 As shown, the buffer block 7 is made of an elastic deformable material and is arc-shaped.
[0025] In the above scheme, the buffer block 7 on the first moving frame 6 protrudes to the left, and the buffer block 7 on the second moving frame 61 protrudes to the right. The material and shape of the buffer block 7 are limited to ensure that the corresponding buffer block 7 can be squeezed smoothly during the movement of the first moving frame 6 and the second moving frame 61, so that the buffer block 7 is deformed.
[0026] The specific workflow of the above scheme is as follows: When it is necessary to use this fixation device to fix the drainage tube 5, the medical staff selects the skin adhesion area according to the location of the patient's wound, then attaches the fixation patch 1 to the patient's skin, then passes the drainage tube 5 through the mounting shell 4, and fixes the drainage tube 5 to the mounting shell 4 by adhesive. After fixation, the staff connects the drainage tube 5 to the external collection device to collect the residual fluid in the patient's body after surgery.
[0027] In the use of the fixing device, when the drainage tube 5 is subjected to downward pressure, the drainage tube 5 is protected by the mounting shell 4, so that the pressure on the drainage tube 5 directly acts on the mounting shell 4, the mounting shell 4 is moved downward under pressure, the mounting shell 4 drives the first moving shell 3 to move downward synchronously, the first moving shell 3 drives all the second moving frames 61 to move downward synchronously, and in the moving process, the first moving shell 3 extrudes the buffer blocks 7 between the first moving shell 3 and all the first moving frames 6, and the second moving frame 61 extrudes the buffer blocks 7 between the lower side of the second moving frame 61 and the fixing patch 1, so that all the buffer blocks 7 are bent under pressure, thereby increasing the resistance to the downward movement of the first moving shell 3, buffering the pressure on the mounting shell 4, reducing the pressure on the patient's body, and reducing the local pain of the patient. At the same time, the part of the drainage tube 5 located in the mounting shell 4 is shielded and protected by the mounting shell 4, thereby ensuring the normal flow of the drainage tube 5.
[0028] After the pressure disappears, the first moving shell 3 drives the mounting shell 4 to reset upward synchronously under the joint action of all the buffer blocks 7, and when the effusion in the patient's body is discharged, the medical staff first takes out the drainage tube 5 from the mounting shell 4, then takes off the fixing device from the patient's skin, and maintains the fixing device for subsequent use.
[0029] Embodiment 2
[0030] On the basis of Embodiment 1, the pressure resistance of the postoperative drainage tube fixing structure in thoracic surgery is further optimized.
[0031] As shown in Figure 4 , the first moving frame 6 and the second moving frame 61 are fixedly connected with the first fixed block 8, and the corresponding two first fixed blocks 8 are fixedly connected with the elastic ring 9, which is located between the corresponding first moving frame 6 and the corresponding second moving frame 61.
[0032] In the above scheme, the first fixed block 8 on the first moving frame 6 and the corresponding second moving frame 61 is located at the similar side of the horizontal part, and the elastic ring 9 is located between the corresponding two first fixed blocks 8.
[0033] As shown in Figure 4 , the first connecting block 10 is fixedly connected in the elastic ring 9, the cross section of the elastic ring 9 is oval, the short axis of the oval is parallel to the center line of the first moving shell 3, and the first connecting block 10 is located on the short axis of the corresponding elastic ring 9.
[0034] In the above scheme, the short axis of the elastic ring 9 is vertical, and the first connecting block 10 is also vertically arranged.
[0035] The specific working process of the above scheme is as follows: In the process of installing shell 4 under pressure to drive all the second mobile frame 61 synchronous downward movement, the second mobile frame 61 on the first fixed block 8 is moved downward, and the first fixed block 8 is applied to the corresponding elastic ring 9 in the process of moving downward to the downward tension, so that the elastic ring 9 is tensioned to produce elastic deformation, and the elastic ring 9 is applied to the first connecting block 10 in the process of deformation, and the first fixed block 8, the elastic ring 9 and the first connecting block 10 are cooperated to constitute a two-stage buffer mechanism, and the pressure on the first mobile shell 3 is further buffered, thereby further increasing the resistance of the first mobile shell 3 to move downward, and reducing the pressure on the patient's body. When the pressure on the installing shell 4 disappears, the first fixed block 8, the elastic ring 9 and the first connecting block 10 are reset under the action of their own elasticity, ready for subsequent use.
[0036] Embodiment 3
[0037] On the basis of embodiment 2, the tensile property of the postoperative drainage tube fixing structure of thoracic surgery is optimized.
[0038] As shown in Figure 1 , Figure 2 and Figures 5-7 , further comprising: a second connecting block 12, having two groups of symmetric distribution, each group having a plurality of circumferentially uniform distribution, respectively arranged on both sides of the installing shell 4; a second fixed block 13, the number of which is consistent with the number of the second connecting block 12, respectively fixedly connected to the side away from the installing shell 4 of the corresponding second connecting block 12; an arc-shaped rod 14, having two symmetric distribution, respectively slidingly connected to both sides of the installing shell 4, the back side of the symmetric distribution arc-shaped rod 14 is fixedly connected with a plurality of L-shaped rods 15, all the L-shaped rods 15 on the same arc-shaped rod 14 are commonly fixedly connected with an extrusion ring 16, the second fixed block 13 is provided with an arc-shaped through slot, and the extrusion ring 16 slides in the arc-shaped through slot of the corresponding second fixed block 13.
[0039] In the above scheme, the specific number of each group of second connecting blocks 12 is determined by the worker, and four circumferentially uniform distribution are taken as an example in the figure and in the text, and the second connecting block 12 is made of an elastic deformable material; the second fixed block 13 gradually narrows from the side close to the installing shell 4 to the side away from the installing shell 4, so that the side of the second fixed block 13 away from the installing shell 4 can be smoothly folded, and the second fixed block 13 is used to fix the drainage tube 5 after folding; the angle of the arc-shaped rod 14 to the center is greater than 180°, which is used to improve the stability of the connection between the arc-shaped rod 14 and the installing shell 4, and the specific number and position of the L-shaped rods 15 on each arc-shaped rod 14 are determined by the worker, and three are taken as an example in the figure; when the extrusion ring 16 is not moved, the extrusion ring 16 is located on the side of the second fixed block 13 away from the installing shell 4, and when the side of the second fixed block 13 away from the installing shell 4 contacts the drainage tube 5, the extrusion ring 16 is located in the middle of the arc-shaped through slot of the corresponding second fixed block 13.
[0040] As Figure 6 shown, the outer diameter of the extrusion ring 16 is smaller than the inner diameter of the mounting shell 4, so that the arc-shaped rod 14 can smoothly control the distance between the corresponding second fixed blocks 13 during movement. The second fixed blocks 13 are arranged obliquely, and the distance between the second fixed blocks 13 in the same group increases with the decrease of the distance between the second fixed blocks 13 and the mounting shell 4, so that the second fixed blocks 13 can be smoothly folded under the action of the arc-shaped rod 14.
[0041] As Figure 7 shown, the side of the second fixed block 13 away from the mounting shell 4 is provided with a sticking pad 17 for fixing the drainage tube 5.
[0042] In the above scheme, the inner side of the end of the second fixed block 13 away from the mounting shell 4 and the sticking pad 17 are both arc-shaped, and the curvatures of the two are the same as the curvature of the drainage tube 5, for increasing the contact area of the sticking pad 17. The sum of the central angles corresponding to all the sticking pads 17 on each group of second fixed blocks 13 and the sum of the central angles corresponding to the end of each group of second fixed blocks 13 away from the mounting shell 4 are both less than 360°.
[0043] As Figure 7 and Figure 8 shown, further comprising: two moving blocks 18 symmetrically distributed and respectively detachably connected to the corresponding arc-shaped rods 14, the mounting shell 4 is provided with symmetrically distributed sliding grooves, the moving blocks 18 slide in the corresponding sliding grooves, and there is a gap between the moving blocks 18 and the groove walls of the corresponding sliding grooves; two extrusion blocks 19 symmetrically distributed and respectively fixedly connected to the corresponding moving blocks 18, the extrusion blocks 19 are in contact with the groove walls of the corresponding sliding grooves.
[0044] In the above scheme, the connection mode of the moving block 18 and the corresponding mounting shell 4 is determined by the worker, and the two are connected by bolts in the figure as an example; the extrusion block 19 is made of an elastic deformable material, so that the extrusion block 19 can deform around the position connected with the corresponding moving block 18, and the extrusion block 19 is always in a force storage state, ensuring that the extrusion block 19 and the groove walls of the sliding grooves on the mounting shell 4 are always in contact.
[0045] As Figure 2 and Figures 5-7 shown, further comprising: two second moving shells 20 symmetrically distributed and respectively slidably connected to the inside of the mounting shell 4, springs are fixedly connected between the second moving shells 20 and the mounting shell 4, and the second moving shells 20 are fixedly connected with the corresponding second connecting blocks 12.
[0046] The specific working process of the above scheme is as follows: After the fixing device is pasted on the designated position of the patient's body, the medical staff passes the drainage tube 5 through the installation shell 4 from left to right (the left side of the installation shell 4 is the side close to the wound), and then moves the right arc-shaped rod 14 to the left, so that the right moving block 18 and the right extrusion block 19 are synchronously moved to the left, and the two are moved in the sliding groove on the left side of the installation shell 4. During the movement, the front wall of the sliding groove on the right side of the installation shell 4 extrudes the extrusion block 19, so that the extrusion block 19 swings counterclockwise (based on the perspective), that is, the extrusion block 19 is elastically deformed, thereby reducing the friction between the extrusion block 19 and the installation shell 4, so that the right moving block 18 and the right extrusion block 19 are smoothly moved. Figure 7
[0047] During the movement of the right arc-shaped rod 14 to the left, all the L-shaped rods 15 on the arc-shaped rod 14 are synchronously moved to the left, the L-shaped rods 15 drive the corresponding extrusion rings 16 to move, so that the extrusion rings 16 are moved to the left along the arc-shaped sliding groove of the corresponding second fixed block 13, and the inner wall of the arc-shaped sliding groove of the corresponding second fixed block 13 is extruded by the extrusion ring 16 during the left movement, so that the right part of the second fixed block 13 is extruded and moved to the position close to the drainage tube 5, and the bending stress is applied to the right second connecting block 12, so that the second connecting block 12 is bent (bent towards the central axis of the drainage tube 5), and the right end of the second fixed block 13 drives the adhesive pad 17 on it to move to the position close to the drainage tube 5.
[0048] When the four adhesive pads 17 on the right side are all moved to contact the outer wall of the drainage tube 5 (at this time, the right ends of the four second fixed blocks 13 are not in contact, and the four adhesive pads 17 are also not in contact), the medical staff adheres the four adhesive pads 17 on the right side to the drainage tube 5, so that the drainage tube 5 is fixed by the four adhesive pads 17 on the right side, and then the medical staff stops moving the arc-shaped rod 14 on the right side, at this time, the right moving block 18 and the right extrusion block 19 are synchronously stopped, and the right extrusion block 19 is always in contact with the front wall of the right sliding groove of the installation shell 4 under the action of its own elasticity; then the staff adjusts the length of the drainage tube 5, so that the part of the drainage tube 5 in the installation shell 4 is arc-shaped (that is, the length of the part of the drainage tube 5 in the installation shell 4 is greater than the length of the installation shell 4), and then the left arc-shaped rod 14 is moved according to the above operation, and the drainage tube 5 is fixed by the four adhesive pads 17 on the left side. After the drainage tube 5 is fixed, the hydrops in the patient's body is drained according to the above operation.
[0049] In the process of drainage, when the drainage tube 5 located at the right part of the installation shell 4 is subjected to a right pulling force, the drainage tube 5 drives the right side adhesive pad 17 to move synchronously to the right, the adhesive pad 17 drives the corresponding second fixed block 13 to move synchronously, the second fixed block 13 drives the right side second moving shell 20 to move synchronously to the right through the corresponding second connecting block 12, the spring between the second moving shell 20 and the installation shell 4 is compressed, the pressure of the drainage tube 5 is buffered by the spring, and at the same time, in the process, since the drainage tube 5 located at the right part of the installation shell 4 is subjected to a right pulling force, when the drainage tube 5 drives the right side installation shell 4 to move to the right, the part located in the installation shell 4 is also pulled out, so that the force acting on the drainage tube 5 located at the left part of the installation shell 4 is reduced, the pulling force of the drainage tube 5 is buffered, the risk of accidental extubation is reduced, and the risk of tearing of the new tissue, suture or fixed suture needle is reduced.
[0050] In the process of moving the right side second fixed block 13 to the right, the second fixed block 13 applies a right force to the arc-shaped rod 14 through the transmission of the extrusion ring 16 and the L-shaped rod 15, so that the arc-shaped rod 14 drives the corresponding moving block 18 and the corresponding extrusion block 19 to move synchronously to the right, in the process, the extrusion block 19 is pressed by the front wall of the right side sliding groove of the installation shell 4 to rotate clockwise (elastic deformation is generated), so that the extrusion block 19 is embedded in the gap between the moving block 18 and the installation shell 4, thereby increasing the friction between the moving block 18 and the installation shell 4, when the friction is greater than the elastic force of the second connecting block 12, the moving block 18 is locked, and the right side arc-shaped rod 14 and the extrusion ring 16 stop moving, at this time, the second fixed block 13 continues to be pressed by the extrusion ring 16 in the process of continuing to move to the right, so that the distance between the right parts of the right side group of second fixed blocks 13 continues to decrease, the clamping force of the right side group of second fixed blocks 13 on the drainage tube 5 is increased, and the stability of the connection between the drainage tube 5 and the right side group of second fixed blocks 13 is ensured.
[0051] Until the pulling force of the drainage tube 5 disappears, the above-mentioned parts are manually reset for subsequent use, when the drainage tube 5 located at the left part of the installation shell 4 is subjected to a left pulling force, the working process of the left side second moving shell 20 can be referred to the above.
[0052] The above is only the preferred embodiment of the present application, and it should be pointed out that those skilled in the art can make some improvements and refinements without departing from the principles of the present application, and these improvements and refinements should also be regarded as the protection scope of the present application.
Claims
1. A postoperative drainage tube fixation structure in thoracic surgery, characterized in that, include: Fixing sticker (1), wherein the fixing sticker (1) is fixedly connected to the fixing shell (2): The first movable shell (3) is slidably connected to the fixed shell (2); Mounting shell (4) is fixed to the first movable shell (3), and the mounting shell (4) is used to fix the drainage tube (5); There are multiple first movable frames (6) and second movable frames (61). The first movable frame (6) is fixed to the fixed sticker (1), and the second movable frame (61) is fixed to the first movable shell (3). The first movable frame (6) and the second movable frame (61) are both located inside the fixed shell (2) and the first movable shell (3). The first movable frame (6) is slidably connected to the corresponding second movable frame (61). Buffer blocks (7) are fixed between the first movable frame (6) and the first movable shell (3) and between the second movable frame (61) and the fixed sticker (1).
2. The postoperative drainage tube fixation structure according to claim 1, characterized in that, The buffer block (7) is made of an elastic deformable material and is arc-shaped.
3. A postoperative drainage tube fixation structure according to claim 1, characterized in that, Both the first movable frame (6) and the second movable frame (61) are fixedly connected to a first fixing block (8), and the two corresponding first fixing blocks (8) are jointly fixedly connected to an elastic ring (9), which is located between the corresponding first movable frame (6) and the corresponding second movable frame (61).
4. A postoperative drainage tube fixation structure according to claim 3, characterized in that, The first connecting block (10) is fixedly connected inside the elastic ring (9).
5. A postoperative drainage tube fixation structure according to claim 4, characterized in that, The cross-section of the elastic ring (9) is elliptical, and the minor axis of the ellipse is parallel to the center line of the first movable shell (3). The first connecting block (10) is located on the minor axis corresponding to the elastic ring (9).
6. A postoperative drainage tube fixation structure according to claim 1 in thoracic surgery, characterized in that it further includes... include: The second connecting block (12) has two symmetrically distributed groups, each group consisting of several evenly distributed circumferentially, respectively disposed on both sides of the mounting shell (4); The number of second fixing blocks (13) is the same as the number of second connecting blocks (12), and they are respectively fixed to the side of the corresponding second connecting block (12) away from the mounting shell (4); Two symmetrically distributed arc-shaped rods (14) are slidably connected to the two sides of the mounting shell (4). Several L-shaped rods (15) are fixed to the back side of the symmetrically distributed arc-shaped rods (14). All the L-shaped rods (15) on the same arc-shaped rod (14) are fixed to a compression ring (16). An arc-shaped through groove is provided on the second fixing block (13). The compression ring (16) slides in the arc-shaped through groove corresponding to the second fixing block (13).
7. A postoperative drainage tube fixation structure according to claim 6, characterized in that, The outer diameter of the compression ring (16) is smaller than the inner diameter of the mounting shell (4), and the second fixing block (13) is inclined.
8. A postoperative drainage tube fixation structure according to claim 6, characterized in that, An adhesive pad (17) is provided on the side of the second fixing block (13) away from the mounting shell (4) for fixing the drainage tube (5).
9. A postoperative drainage tube fixation structure according to claim 6, characterized in that, it further includes... include: The movable block (18) has two symmetrically distributed parts, which are detachably connected to the corresponding arc rod (14). The mounting shell (4) is provided with symmetrically distributed sliding grooves. The movable block (18) slides in the corresponding sliding groove. There is a gap between the movable block (18) and the groove wall of the corresponding sliding groove. Two symmetrically distributed extrusion blocks (19) are fixed to the corresponding moving blocks (18), and the extrusion blocks (19) are in contact with the groove wall of the corresponding slide.
10. A postoperative drainage tube fixation structure according to claim 9, characterized in that it further includes... include: The second movable shell (20) has two symmetrically distributed shells, which are slidably connected to both sides inside the mounting shell (4). A spring is fixed between the second movable shell (20) and the mounting shell (4). The second movable shell (20) is fixedly connected to the corresponding second connecting block (12).