An adjustable abdominal compression surrogate device

Abstract

The utility model provides a kind of adjustable abdominal compression replacement device, belong to tumor radiotherapy equipment field. Including locating plate, rigid foam board and thermoplastic net, locating plate surface buckle setting two pieces of detachable connecting block one, connecting block one top connects flexible connecting strip one, the end of flexible connecting strip one is fixed with several strips of binding belt, another connecting block one top connects the flexible connecting strip two corresponding with the number of binding belt, metal ring is fixed on each flexible connecting strip two, binding belt one end is provided with wool surface magic tape and the several hook surface magic tape distributed along band body, wool surface magic tape and the hook surface magic tape of selected position are fixed by snap, thermoplastic net both ends are fixed with connecting block two, connecting block is detachably installed on the upper end of locating plate, thermoplastic net and binding belt lower end are in close contact, rigid foam board is located between locating plate and thermoplastic net. The utility model is convenient to operate and lower in cost, while ensuring accuracy and efficiency, and sufficient primary adaptability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tumor radiotherapy equipment field relates to an adjustable abdominal compression replacement device. BACKGROUND

[0002] With the rapid development of radiotherapy technology, such as the application of stereotactic radiotherapy technology and proton heavy ion radiotherapy technology, the accuracy of patient radiotherapy position fixation is increasingly required. The control of target area movement in chest and abdominal tumor radiotherapy is a big problem. The adverse consequences of tumor movement are to increase the radiotherapy plan target area (PTV), to damage more normal tissues around the tumor, and the movement of the tumor will also cause uneven dose in the target area and other serious consequences. To solve this problem, the current abdominal compression device for radiotherapy mainly has three types: A type device: the most original abdominal compression device provided by the positioning CT manufacturer; B type device: improved rigid foam board placed under the thermoplastic net; C type device: inflatable bag placed under the thermoplastic net.

[0003] But the above three types of devices have certain defects or cannot meet more clinical needs under certain conditions;

[0004] The defects of A type device: the design is not flexible enough, more steps are required for installation and disassembly during clinical use, more time is consumed, the size of the compression plate cannot be adjusted, it cannot adapt to the patient's body structure, the stress area is fixed during compression, the comfort of some patients is poor, the compliance is not high, and moreover, the cost of the device can reach tens of thousands of dollars, which is high in cost and heavy in economic burden, and the cost performance is not high enough;

[0005] The defects of B type device: the replaceable rigid foam board placed under the thermoplastic net can solve the problem of patient body structure adaptation and simplify the process of A device, but because the shape of the thermoplastic net is fixed and cannot be changed after cooling, the compression range of the foam board is determined by the doctor's feeling, which can cause excessive compression and increase the patient's discomfort and affect breathing, and at the same time, there is not enough compression, which leads to a larger target area movement range and cannot achieve the purpose of reducing the target area movement range through compression. Of course, some devices use artificial intelligence to calculate the compression depth, but this is difficult in primary medical units;

[0006] The defects of C type device: the device is easy and simple to operate, but the air bag is a non-rigid structure, the pressure in the air bag can be transmitted to the body and can also compress the thermoplastic mold outward, causing it to deform, and during the patient's treatment, there is forced breathing, which can increase the movement range of the radiotherapy target area, thereby offsetting the effect of abdominal compression;

[0007] In summary, the common problems existing in the prior art are as follows:

[0008] 1. Precision-efficiency contradiction: A type device is high in cost, B / C type device is simplified in operation but sacrifices precision;

[0009] 2. Insufficient adaptability to primary care: Complex operating procedures (such as Class B / C requiring a certain period of professional training) or high equipment costs (such as Class A) limit the application in primary care hospitals. Utility Model Content

[0010] To address the shortcomings of existing technologies, the purpose of this invention is to provide an adjustable abdominal compression replacement device to solve the problems mentioned in the background section. This invention can effectively replace or simulate the thermoplastic mold device used in radiotherapy, is easy to operate, saves costs, reduces the variation in the amplitude of foam board compression, accurately obtains the optimal or most suitable abdominal compression depth, and replicates it onto the thermoplastic mesh, thus improving the quality of examination.

[0011] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0012] An adjustable abdominal compression replacement device includes a positioning plate, a rigid foam board, and a thermoplastic mesh. Two detachable connecting blocks are snapped onto the surface of the positioning plate, and the two connecting blocks are arranged symmetrically.

[0013] The top of the first connecting block is connected to a first flexible connecting strip, and several binding straps are fixed to the end of the first flexible connecting strip; the top of the other first connecting block is connected to a second flexible connecting strip corresponding to the number of binding straps, and a metal ring is fixed on each second flexible connecting strip.

[0014] One end of the binding strap is provided with a hook and loop fastener and several hook and loop fasteners distributed along the strap body. The end of the binding strap with the hook and loop fastener is threaded through a metal ring to achieve multi-level tension adjustment. The hook and loop fastener is fastened to the hook and loop fastener at the selected position.

[0015] Both ends of the thermoplastic mesh are fixed with connecting blocks 2. The connecting blocks are detachably installed on the upper end of the positioning plate. The thermoplastic mesh is close to the lower end of the binding strap. The rigid foam board is located between the positioning plate and the thermoplastic mesh.

[0016] Furthermore, the top of the positioning plate has two symmetrically distributed mounting slots, and both the second connecting block and the first connecting block can be snapped into the corresponding mounting slots.

[0017] Furthermore, one end of the binding strap is provided with several toothed blocks that are connected end to end, and one end of the other connecting block is fixed with a locking component. One end of the binding strap can achieve multi-level tension adjustment by passing through the locking component. The positioning plate has two symmetrically arranged positioning slots, and the top of the positioning plate has two symmetrically distributed positioning slots. The second connecting block and the corresponding first connecting block are sequentially embedded in the corresponding positioning slots. The positioning slots are fitted with buckle blocks. The first connecting block is located between the second connecting block and the buckle block to form an end face abutment structure. The first connecting block, the second connecting block and the buckle block form a detachable locking engagement.

[0018] Furthermore, one end of the second connecting block has a locking block, the inner wall of the positioning groove has a locking groove for the locking block to be embedded, one end of the first connecting block has a fixing block, and one end of the second connecting block has a fixing groove for the fixing block to be embedded.

[0019] Furthermore, the locking assembly includes a mounting block and several locking blocks with right-angled triangular cross sections. The mounting block has through holes for the binding strap and several toothed blocks to pass through. Several locking blocks are slidably disposed in the through holes, and the locking blocks are embedded between two adjacent toothed blocks.

[0020] Furthermore, the top wall of the through hole has a groove for the locking block to be embedded in, and both ends of the locking block are fixed with sliders. The inner side wall of the through hole has a groove for the slider to be embedded in, and a locking spring is fixed between the slider and the top wall of the groove. The groove is connected to the through hole and the groove.

[0021] Furthermore, a connecting rod is fixed to the top of the locking block, and the mounting block has a connecting groove and an adjustment hole for the connecting rod to pass through. Several connecting rods extend to one end of the mounting block and are fixed with an adjustment block.

[0022] Furthermore, one end of the latching block has a gripping groove.

[0023] The beneficial effects of this utility model are:

[0024] This utility model is easy to operate and has a low cost, while ensuring accuracy and efficiency, and has sufficient adaptability to the base layer.

[0025] This invention utilizes a flexible, non-stretchable strap, hook and loop fasteners, and several surface-mounted hook and loop fasteners distributed along the strap to continuously adjust the fixation level. It detects the optimal abdominal compression depth according to the diaphragm's movement range, preventing insufficient compression from increasing the radiotherapy target area's range of motion, while avoiding excessive compression that could cause respiratory distress and other complications. With the aid of a laser positioning system and a CT simulator, an objective and appropriate abdominal compression depth is obtained and replicated in real-time onto a thermoplastic mold. Furthermore, this invention exhibits high rigidity, preventing deformation of the abdominal compression device due to the patient's forceful breathing during treatment, which could lead to an expansion of the abdominal organ's range of motion and thus negate the abdominal compression effect.

[0026] It accurately obtains the optimal or suitable abdominal compression depth and replicates it onto the thermoplastic mold in real time, ensuring good repeatability during treatment and effectively avoiding insufficient or excessive compression. It also avoids excessive movement of the radiotherapy target area caused by deformation of the compression material during treatment due to insufficient rigidity of the compression material. The operation steps are simplified and the operation is convenient. Attached Figure Description

[0027] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0028] Figure 1 This is a top view of Embodiment 1 of this utility model;

[0029] Figure 2 This is a structural schematic diagram of Embodiment 1 of the present invention;

[0030] Figure 3 This is an assembly diagram of the positioning plate, connecting block 2, and thermoplastic mesh in Embodiment 1 of this utility model;

[0031] Figure 4 This is an assembly cross-sectional view of the positioning plate and connecting block 1 in Embodiment 1 of this utility model;

[0032] Figure 5 This is a schematic diagram of the structure of the connecting block one in Embodiment 2 of this utility model;

[0033] Figure 6 This is a schematic diagram of the structure of the connecting block 2 in Embodiment 2 of this utility model;

[0034] Figure 7 This is a schematic diagram of the structure of the snap-fit ​​block in Embodiment 2 of this utility model;

[0035] Figure 8 This is a top view of Embodiment 2 of this utility model;

[0036] Figure 9 This is an assembly cross-sectional view of the locking component and part of the binding strap in Embodiment 2 of this utility model;

[0037] Figure 10 This is a cross-sectional view of the locking component according to Embodiment 2 of this utility model;

[0038] Figure 11 This is an assembly cross-sectional view of the mounting block and locking block according to Embodiment 2 of this utility model;

[0039] Figure 12 This is an assembly diagram of the positioning plate, connecting block one, connecting block two, locking assembly and buckle block in Embodiment 2 of this utility model;

[0040] Figure 13 This is an assembly cross-sectional view of the positioning plate, connecting block one, connecting block two, and snap-fit ​​block in Embodiment 2 of this utility model;

[0041] Figure 14 This is a structural schematic diagram of Embodiment 2 of this utility model.

[0042] In the diagram: 1. Positioning plate; 2. Rigid foam board; 3. Connecting block one; 4. Connecting block two; 5. Flexible connecting strip one; 6. Binding strap; 7. Flexible connecting strip two; 8. Metal ring; 9. Loose-knit Velcro; 10. Hook-knit Velcro; 11. Thermoplastic mesh; 12. Mounting groove; 13. Buckle block; 14. Clip block; 15. Slot; 16. Fixing block; 17. Fixing groove; 18. Tooth block; 19. Mounting block; 20. Locking block; 21. Through hole; 22. Groove; 23. Slider; 24. Slide groove; 25. Locking spring; 26. Connecting rod; 27. Adjusting hole; 28. Adjusting block; 29. ​​Gripping groove; 30. Positioning groove. Detailed Implementation

[0043] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0044] Example 1

[0045] like Figures 1-4 As shown, an adjustable abdominal compression replacement device includes a positioning plate 1 and a rigid foam board 2. Two detachable connecting blocks 3 are snapped onto the surface of the positioning plate 1, symmetrically arranged. A flexible connecting strip 5 is connected to the top of each connecting block 3, and several binding straps 6 are fixed to the ends of the flexible connecting strips 5. The binding straps 6 are made of a non-shrinkable material. Another flexible connecting strip 7, corresponding to the number of binding straps 6, is connected to the top of the other connecting block 3. A metal ring 8 is fixed to each flexible connecting strip 7. One end of each binding strap 6 is provided with a hook-and-loop fastener 9 and several hook-and-loop fasteners distributed along the strap. The binding strap 6 has a hook and loop fastener 9 at one end, which is threaded through a metal ring 8 to achieve multi-level tension adjustment. The hook and loop fastener 9 is fastened to the hook and loop fastener 10 at the selected position. Both ends of the thermoplastic mesh 11 are fixed with connecting blocks 2 4. The connecting blocks 2 4 are detachably installed on the upper end of the positioning plate 1. The thermoplastic mesh 11 is close to the lower end of the binding strap 6. The rigid foam board 2 is located between the positioning plate 1 and the thermoplastic mesh 11. The top of the positioning plate 1 has two symmetrically distributed mounting slots 12. Both the connecting blocks 2 4 and the connecting blocks 1 3 can be snapped into the corresponding mounting slots 12.

[0046] The specific operation method of Embodiment 1 of this utility model is as follows:

[0047] First, the patient should fast for more than 3 hours before positioning and empty their bladder and bowels. Instruct the patient to use abdominal breathing, then remove their upper clothing to expose their skin, and lie flat on the positioning plate 1 of the CT simulator to keep their position fixed. According to the patient's body size and the shape of their upper abdomen, cut a rigid foam board 2 to an appropriate size and about 4-6 cm thick, place it on the patient's upper abdomen, and mark its boundaries. Observe the diaphragm movement when the patient is breathing quietly on the CT simulator and record the amplitude of the diaphragm movement.

[0048] Then, place the rigid foam board 2 on the marked area on the patient's upper abdomen, insert the two connecting blocks 3 into the mounting groove 12, and then pass the end of the binding strap 6 with the hook and loop fastener 9 around the metal ring 8. During the patient's exhalation, compress the rigid foam board 2 to a certain extent, and fasten the hook and loop fastener 9 to the hook and loop fastener 10 at the selected position. Observe the patient's respiratory movement under the CT simulator and record the diaphragm movement amplitude. Control the movement amplitude within 1 cm. If it cannot be satisfied, continue to press the rigid foam board 2 until the diaphragm movement amplitude meets the requirements. Adjust the three-dimensional positioning laser horizontal line to be level with the highest point of the rigid foam board 2, and then separate the hook and loop fastener 9 from the hook and loop fastener 10. Remove the connecting block 3 from the mounting groove 12.

[0049] Insert the connecting block 2 4 into the mounting groove 12 so that the thermoplastic mesh 11 covers the rigid foam board 2. Instruct the patient to take a deep breath and press the rigid foam board 2 so that its height is level with the horizontal laser line.

[0050] Maintain the pressure until the thermoplastic mesh 11 cools and fixes. Observe the range of diaphragm movement under the fixed state of the thermoplastic mesh 11 on the CT simulator to ensure that its range of movement is controlled within 1cm. Perform 4DCT simulation positioning under the fixed state of the thermoplastic mesh 11, and use this to delineate the target area and design the plan.

[0051] By setting up a flexible, non-stretchable binding strap 6, a textured Velcro 9, and several hook-and-loop Velcro 10s distributed along the binding strap 6, the fixation degree can be continuously adjusted. The optimal abdominal compression depth can be detected according to the diaphragm movement range requirements, avoiding insufficient compression that would increase the range of motion of the radiotherapy target area, while avoiding excessive compression that would cause the patient to have difficulty breathing and other complications. With the help of laser positioning system, CT simulator and other devices, an objective and appropriate abdominal compression depth can be obtained and copied onto the thermoplastic mold in real time. This utility model has strong rigidity, avoiding deformation of the abdominal compression device caused by the patient's forceful breathing during treatment, which would increase the range of motion of the abdominal organs and thus offset the abdominal compression effect.

[0052] It accurately obtains the optimal or suitable abdominal compression depth and replicates it onto the thermoplastic mold in real time, ensuring good repeatability during treatment and effectively avoiding insufficient or excessive compression. It also avoids excessive movement of the radiotherapy target area caused by deformation of the compression material during treatment due to insufficient rigidity of the compression material. The operation steps are simplified and the operation is convenient.

[0053] Example 2

[0054] like Figures 5-14As shown, one end of the binding strap 6 is provided with several toothed blocks 18 that are connected end to end, and one end of the other connecting block 3 is fixed with a locking component. One end of the binding strap 6 achieves multi-level tension adjustment by passing through the locking component. The positioning plate 1 has two symmetrically arranged positioning grooves 30. The connecting block 4 and the corresponding connecting block 3 are sequentially embedded in the corresponding positioning grooves 30. The positioning groove 30 is fitted with a buckle block 13. The connecting block 3 is located between the connecting block 4 and the buckle block 13 to form an end face abutment structure. The connecting block 3, the connecting block 4 and the buckle block 13 form a detachable locking engagement. One end of the connecting block 4 has a locking block 14. The inner wall of the positioning groove 30 has a locking groove 15 for the locking block 14 to be embedded. One end of the connecting block 3 has a fixing block 16. One end of the connecting block 4 has a fixing groove 17 for the fixing block 16 to be embedded. One end of the buckle block 13 has a gripping groove 29.

[0055] The locking assembly includes a mounting block 19 and several locking blocks 20 with right-angled triangular cross-sections. The mounting block 19 has through holes 21 for the binding strap 6 and several toothed blocks 18 to pass through. Several locking blocks 20 are slidably disposed in the through holes 21. Each locking block 20 is embedded between two adjacent toothed blocks 18. The inner top wall of the through hole 21 has a groove 22 for the locking blocks 20 to be embedded in. Both ends of the locking blocks 20 are fixed with sliders 23. The inner side wall of the through hole 21 has a sliding groove 24 for the sliders 23 to be embedded in. A locking spring 25 is fixed between the sliders 23 and the inner top wall of the sliding groove 24. The sliding groove 24 is connected to the through hole 21 and the groove 22. A connecting rod 26 is fixed to the top of the locking block 20. The mounting block 19 has an adjustment hole 27 for the connecting rod 26 to pass through. Several connecting rods 26 extend to one end of the mounting block 19 and are fixed with an adjustment block 28.

[0056] The specific operation method of Embodiment 2 of this utility model is as follows:

[0057] Place the rigid foam board 2 on the marked area on the patient's upper abdomen, and insert the two connecting blocks 2 4 into the positioning groove 30, so that the locking block 14 of the connecting block 2 4 is inserted into the locking groove 15, so that the lower end face of the thermoplastic mesh 11 abuts against the upper end face of the rigid foam board 2. Then insert the two connecting blocks 2 4 into the positioning groove 30, and insert the fixing block 16 at one end of the connecting block 2 4 into the fixing groove 17 opened in the connecting block 1 3, so that the connecting block 1 3 and the connecting block 2 4 abut against each other. Then, snap-fit ​​block 13 is inserted into the positioning groove 30 to achieve locking and stabilization of the connecting block 1 3 and the connecting block 2 4.

[0058] One-way lock-up adjustment

[0059] Forward tightening: Pull the binding strap 6 outward, the toothed block 18 pushes the inclined surface of the locking block 20, forcing the locking block 20 to move upward along the slide groove 24, and the locking spring 25 is compressed; after the toothed block 18 passes, the locking block 20 is reset under the action of the spring, and its right-angled side abuts against the previous toothed block 18 to achieve one-way locking.

[0060] Multi-stage fixing: Repeated pulling operation, with the step length of each stage determined by the spacing of adjacent tooth blocks 18, until the required tension is reached;

[0061] Under the CT simulator, observe the patient's respiratory movements and record the amplitude of diaphragmatic movement. Control the amplitude of movement within 1 cm. If this is not possible, continue to press the rigid foam board 2 until the amplitude of diaphragmatic movement meets the requirements. Adjust the three-dimensional positioning laser horizontal line to be level with the highest point of the rigid foam board 2. The thermoplastic mesh 11 needs a certain amount of cooling time to fix its state, so there is enough time for the doctor to press and adjust the rigid foam board 2. Maintain the pressing state until the thermoplastic mesh 11 cools and fixes.

[0062] Tension release operation

[0063] Manual unlocking: Pull the adjusting block 28, which will drive all the locking blocks 20 to move upward and disengage from the adjacent two toothed blocks 18 through several connecting rods 26. At this time, the binding strap 6 can be pulled back or the position adjusted freely.

[0064] Elastic reset: After the adjusting block 28 is released, the locking spring 25 pushes the locking block 20 to reset and re-enter the locking state;

[0065] The range of diaphragm movement was observed on a CT simulator under the fixed state of the thermoplastic mesh 11, ensuring that its range of movement was controlled within 1 cm. 4DCT simulation positioning was performed under the fixed state of the thermoplastic mesh 11, and the target area was delineated and the plan was designed accordingly.

[0066] By setting a locking component, the engagement of the inclined surface of the locking block 20 with the toothed block 18 allows only unidirectional tightening of the binding strap 6, preventing accidental loosening and ensuring fixation stability. The tension can be graded and adjusted by setting the spacing of the toothed blocks 18 (e.g., 5mm / level) to meet different pressure requirements. It is suitable for dynamic pressure scenarios (e.g., abdominal compression) and can be flexibly adjusted according to changes in external load. The adjustment block 28 links all locking blocks 20 to disengage from the toothed blocks 18 simultaneously, achieving one-button unlocking for easy emergency adjustment or reuse.

[0067] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An adjustable abdominal compression replacement device, comprising a positioning plate (1), a rigid foam board (2), and a thermoplastic mesh (11), characterized in that: The upper end of the positioning plate (1) is fastened with two detachable connecting blocks (3), and the two connecting blocks (3) are arranged symmetrically. The top of the first connecting block (3) is connected to the first flexible connecting strip (5), and several binding straps (6) are fixed at the end of the first flexible connecting strip (5); the top of the other first connecting block (3) is connected to the second flexible connecting strip (7) corresponding to the number of binding straps (6), and a metal ring (8) is fixed on each second flexible connecting strip (7); One end of the binding strap (6) is provided with a hook and loop fastener (9) and a number of hook and loop fasteners (10) distributed along the strap body. The end of the binding strap (6) with the hook and loop fastener (9) is threaded through a metal ring (8) to achieve multi-level tension adjustment. The hook and loop fastener (9) is fastened and fixed to the hook and loop fastener (10) at the selected position. Both ends of the thermoplastic mesh (11) are fixed with connecting blocks two (4). The connecting blocks two (4) are detachably installed on the upper end of the positioning plate (1). The thermoplastic mesh (11) is close to the lower end of the binding strap (6). The rigid foam board (2) is located between the positioning plate (1) and the thermoplastic mesh (11).

2. The adjustable abdominal compression replacement device according to claim 1, characterized in that, The top of the positioning plate (1) has two symmetrically distributed mounting slots (12), and the second connecting block (4) and the first connecting block (3) can be fitted into the corresponding mounting slots (12).

3. The adjustable abdominal compression replacement device according to claim 1, characterized in that, One end of the binding strap (6) is provided with several toothed blocks (18) that are connected end to end. One end of the other connecting block (3) is fixed with a locking component. One end of the binding strap (6) is passed through the locking component to achieve multi-level tension adjustment. The positioning plate (1) has two symmetrically arranged positioning grooves (30). The connecting block (4) and the corresponding connecting block (3) are sequentially embedded in the corresponding positioning groove (30). The positioning groove (30) is fitted with a buckle block (13). The connecting block (3) is located between the connecting block (4) and the buckle block (13) to form an end face abutment structure. The connecting block (3), the connecting block (4) and the buckle block (13) form a detachable locking fit.

4. The adjustable abdominal compression replacement device according to claim 3, characterized in that, One end of the second connecting block (4) has a locking block (14), and the inner wall of the positioning groove (30) has a locking groove (15) for the locking block (14) to be embedded. One end of the first connecting block (3) has a fixing block (16), and one end of the second connecting block (4) has a fixing groove (17) for the fixing block (16) to be embedded.

5. The adjustable abdominal compression replacement device according to claim 4, characterized in that, The locking assembly includes a mounting block (19) and several locking blocks (20) with right-angled triangular cross sections. The mounting block (19) has a through hole (21) for the binding strap (6) and several toothed blocks (18) to pass through. Several locking blocks (20) are slidably disposed in the through hole (21) and the locking blocks (20) are embedded between two adjacent toothed blocks (18).

6. The adjustable abdominal compression replacement device according to claim 5, characterized in that, The inner top wall of the through hole (21) has a groove (22) for the locking block (20) to be embedded in. Both ends of the locking block (20) are fixed with sliders (23). The inner side wall of the through hole (21) has a sliding groove (24) for the slider (23) to be embedded in. A locking spring (25) is fixed between the slider (23) and the inner top wall of the sliding groove (24). The sliding groove (24) is connected to the through hole (21) and the groove (22).

7. An adjustable abdominal compression replacement device according to claim 6, characterized in that, The locking block (20) has a connecting rod (26) fixed on top. The mounting block (19) has a connecting groove and an adjustment hole (27) for the connecting rod (26) to pass through. Several connecting rods (26) extend to one end of the mounting block (19) and are fixed with an adjustment block (28).

8. An adjustable abdominal compression replacement device according to claim 3, characterized in that, The latching block (13) has a gripping groove (29) at one end.

Images