Traditional Chinese medicine hot compress device

Abstract

The invention belongs to the technical field of traditional Chinese medicine hot compress, and particularly discloses a traditional Chinese medicine hot compress device which comprises an air bag type hot compress bag, a traditional Chinese medicine bag containing bag, a self-induction heat dissipation device, a variable timing release device and an elastic bandage. According to the invention, through a bimetallic strip automatic temperature sensing and heat dissipation mechanism, the scald risk caused by too high temperature during traditional hot compress is effectively avoided; by combining the design of air bag inflation and deflation and the design of an elastic bandage, active self-adaptive attachment to a hot compress part is achieved, and the stability and comfort in the treatment process are ensured; meanwhile, the device creatively adopts an adjustable mechanical timing and automatic deflation separation structure, a user can accurately set the hot compress time according to needs, the hot compress bag is automatically separated after the time is up, manual monitoring is not needed, the long-term pain points of difficult temperature control, unstable fixation and inconvenient time management in hot compress are fundamentally solved, and the hot compress efficiency is improved. And the safety, effectiveness and operation convenience of treatment are remarkably improved.

Description

Technical Field

[0001] This invention belongs to the field of traditional Chinese medicine hot compress technology, specifically referring to a traditional Chinese medicine hot compress device. Background Technology

[0002] Traditional Chinese medicine (TCM) hot compress is a commonly used external treatment method. Through the synergistic effect of medicine and heat, it can warm the meridians, dispel cold, promote blood circulation, and relieve common symptoms such as abdominal pain, cough, and indigestion. However, traditional hot compress methods often use towel-wrapped hot compress packs or simple patch devices, which have the following prominent problems in practical use: 1. Inaccurate temperature control: When the temperature of the hot compress pack is too high, it can easily burn the skin, while when the temperature is too low, it will affect the therapeutic effect. Existing devices mostly rely on manual sensing and adjustment, and lack an automatic and reliable temperature control mechanism. 2. Poor fixation and fit: Traditional straps are difficult to fit the body's curves securely, which can easily cause the heat pack to shift or fall off, affecting the heat therapy effect; 3. The hot compress time is difficult to control precisely: too long a hot compress time may cause skin discomfort or low-temperature burns, while too short a time will not be able to fully exert the effect of the medicine. The existing device lacks a timer and automatic disconnection function, and requires continuous care from medical staff. 4. Cumbersome operation: Traditional hot compress devices often require multiple manual adjustments to the temperature and fixation method, making them inconvenient to use.

[0003] Therefore, there is an urgent need for a traditional Chinese medicine hot compress device that can automatically adjust temperature, fit securely, detach at set times, and is easy to operate, in order to improve the safety, comfort, and effectiveness of treatment. Summary of the Invention

[0004] To address the above issues and overcome the shortcomings of existing technologies, this invention provides a traditional Chinese medicine hot compress device. Through a bimetallic strip automatic temperature-sensing and heat dissipation mechanism, it effectively avoids the risk of burns caused by excessively high temperatures during traditional hot compresses. Combined with an airbag inflation / deflation system and elastic bandage design, it achieves active adaptive fit to the hot compress area, ensuring stability and comfort during treatment. Simultaneously, the device creatively employs an adjustable mechanical timing and automatic deflation / detachment structure. Users can precisely set the hot compress time as needed, and the hot compress pack automatically detaches after the time is up, eliminating the need for manual monitoring. This fundamentally solves the long-standing pain points of difficult temperature control, unstable fixation, and inconvenient time management in hot compresses, significantly improving the safety, effectiveness, and ease of operation of the treatment.

[0005] The technical solution adopted by this invention is as follows: This invention provides a traditional Chinese medicine hot compress device, including an airbag-type hot compress pack, a herbal medicine pack placement bag, a self-sensing heat dissipation device, a variable timed release device, and an elastic strap. The herbal medicine pack placement bag is disposed on the airbag-type hot compress pack, the self-sensing heat dissipation device is disposed on the airbag-type hot compress pack and is connected to the herbal medicine pack placement bag, the variable timed release device is disposed on the airbag-type hot compress pack, and the elastic strap is disposed on the airbag-type hot compress pack. The self-sensing heat dissipation device includes a heat dissipation pipe, a bimetallic strip, a push rod, a hollow fixing and limiting plate, and a spring. The heat dissipation pipe is installed through the airbag-type heat pack and is connected to the medicine pack placement bag. The bimetallic strip is installed on the inner wall of the heat dissipation pipe near the medicine pack placement bag. The hollow fixing and limiting plate is installed in the heat dissipation pipe. The hollow fixing and limiting plate has a telescopic hole at its center. The push rod is telescopically slidably installed in the telescopic hole and is located above the bimetallic strip. The sealing plate is connected to the upper end of the push rod. The spring is sleeved on the outside of the push rod and is located between the sealing plate and the hollow fixing and limiting plate. The sealing plate can seal the upper end of the heat dissipation pipe.

[0006] Furthermore, the variable timed release device includes a fixed plate, a spring-screwing component, and a timed speed-adjusting component. The fixed plate is mounted on the airbag-type heat pack, the spring-screwing component is mounted on the fixed plate, and the timed speed-adjusting component is mounted on the fixed plate. The timed speed-adjusting component is connected to the spring-screwing component.

[0007] Preferably, the mainspring winding component includes a fixed plate frame, a rotating gear, a mainspring, a rotating column, and a knob. The fixed plate frame is mounted on a fixed plate, the rotating column is rotatably mounted on the fixed plate frame, the rotating gear is located below the rotating column, one end of the mainspring is connected to the rotating column, the other end of the mainspring is connected to the fixed plate frame, and the knob is located above the rotating column.

[0008] Furthermore, the timing speed regulating component includes a meshing gear disc, a fixed cylinder, a speed regulating component, a screw, an adjusting knob, and a conical cylinder. The meshing gear disc is rotatably mounted on the fixed plate and meshes with the rotating gear disc. The fixed cylinder is located at the center of the upper wall of the meshing gear disc. The screw is rotatably mounted at the center of the meshing gear disc and is located inside the fixed cylinder. The speed regulating component is sleeved on the screw. The adjusting knob is located on the screw. The conical cylinder is located on the fixed plate and is located outside the fixed cylinder.

[0009] The speed regulating component includes a collar rod, a telescopic limiting rod, a centrifugal spring, and a speed regulating ball. The collar rod is sleeved on the screw and threadedly connected to the screw. The telescopic limiting rod is located on the collar rod. The speed regulating ball is located on the telescopic limiting rod. The centrifugal spring is sleeved on the outside of the telescopic limiting rod, with one end of the centrifugal spring located on the collar rod and the other end located on the speed regulating ball.

[0010] Furthermore, the fixed cylinder sidewall is provided with a sliding groove, and the collar rod is slidably disposed in the sliding groove.

[0011] As a further preferred embodiment of the present invention, the cone is arranged in the form of a cylinder that is narrower at the top and wider at the bottom.

[0012] Furthermore, the fixed plate is provided with an air vent, and the rotating gear plate is provided with an adapter port. When the adapter port overlaps with the air vent, the gas in the airbag-type heat pack can be released.

[0013] The airbag-type hot compress pack is equipped with a through-tube, and the through-tube is equipped with an inflation component.

[0014] Furthermore, the elastic strap includes an elastic strap one and an elastic strap two. The elastic strap one is provided with round hook and loop fasteners, and the elastic strap two is provided with barbed hook and loop fasteners. The round hook and loop fasteners and the barbed hook and loop fasteners are glued together.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows: 1. Effectively prevents burns and improves safety: The bimetallic strip senses the temperature of the herbal pack and links the push rod and sealing plate to automatically open and close the heat dissipation tube. It can dissipate heat in time when the temperature is too high and keep the seal when the temperature is suitable, avoiding skin burns caused by overheating and realizing intelligent temperature control during the hot compress process. 2. Stable fit and high comfort: It uses a combination of elastic straps and Velcro for fixation, combined with an inflatable airbag structure. After inflation, the herbal pack can adapt to fit the hot compress area and maintain a stable fit even during movement, improving the hot compress effect while reducing discomfort. 3. Adjustable heat application time and automatic detachment, convenient operation: Through the timing and control mechanism composed of a spring, rotating gear plate and speed regulating ball, users can flexibly adjust the heat application time according to the characteristics of different Chinese medicine packs and the needs of the heat application site; after the time is up, the fitting port and the air release port coincide, the air bag automatically releases air, and the heat pack detaches immediately without manual monitoring, reducing the burden of care. 4. The structure is reasonably designed to meet clinical needs: The whole device integrates temperature sensing, adaptive fitting and timed detachment functions. The operation steps are simple and can be adjusted according to different treatment needs, which helps to improve the compliance and treatment effect of TCM external treatment. 5. Reusable and economical: The device adopts a reliable mechanical structure, and key components such as bimetallic strips, airbags, and speed regulation mechanisms are durable. The herbal medicine packs are replaceable, and the entire device can be recycled multiple times, reducing long-term treatment costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a traditional Chinese medicine hot compress device proposed in this invention. Figure 2 This is a left view of a traditional Chinese medicine hot compress device proposed in this invention; Figure 3 This is a front view of a traditional Chinese medicine hot compress device proposed in this invention; Figure 4 This is a top view of a traditional Chinese medicine hot compress device proposed in this invention; Figure 5 This is a bottom view of a traditional Chinese medicine hot compress device proposed in this invention; Figure 6 This is a cross-sectional structural diagram of a traditional Chinese medicine hot compress device proposed in this invention; Figure 7 This is a schematic diagram of the internal structure of a self-sensing heat dissipation device. Figure 8 A schematic diagram of the combination of push rod, spring and sealing plate; Figure 9 This is a schematic diagram of an airbag-type heat pack. Figure 10 This is a schematic diagram of a variable timed release device; Figure 11 This is a cross-sectional structural diagram of a variable timed release device.

[0017] Among them, 1. Airbag-type hot compress pack, 2. Herbal medicine pack storage bag, 3. Self-sensing heat dissipation device, 4. Variable timed release device, 5. Elastic strap, 6. Heat dissipation pipe, 7. Bimetallic strip, 8. Push rod, 9. Hollowed-out fixing limit plate, 10. Spring, 11. Sealing plate, 12. Telescopic hole, 13. Fixing plate, 14. Spring-driven screw mechanism, 15. Timed speed adjustment mechanism, 16. Fixing plate frame, 17. Rotating gear plate, 18. Spring, 19. Rotation 20. Column, Knob, 21. Engaging gear plate, 22. Fixed cylinder, 23. Speed ​​regulating component, 24. Screw, 25. Adjusting knob, 26. Conical cylinder, 27. Collar rod, 28. Telescopic limit rod, 29. Centrifugal spring, 30. Speed ​​regulating ball, 31. Slide groove, 32. Air vent, 33. Adapter port, 34. Through hose, 35. Inflating component, 36. Elastic strap one, 37. Elastic strap two, 38. Round loop Velcro, 39. Barbed Velcro.

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] like Figures 1-11 As shown, the present invention provides a traditional Chinese medicine hot compress device, including an airbag-type hot compress pack 1, a herbal medicine pack 2, a self-sensing heat dissipation device 3, a variable timed release device 4, and an elastic strap 5. The airbag-type hot compress pack 1 is provided with a through-tube 34, and an inflation component 35 is provided on the through-tube 34. The herbal medicine pack 2 is provided on the airbag-type hot compress pack 1. The self-sensing heat dissipation device 3 is provided on the airbag-type hot compress pack 1 and is connected to the herbal medicine pack 2. The variable timed release device 4 is provided on the airbag-type hot compress pack 1. The elastic strap 5 is provided on the airbag-type hot compress pack 1. The elastic strap 5 includes an elastic strap 36 and an elastic strap 37. The elastic strap 36 is provided with round hook and loop fasteners 38, and the elastic strap 37 is provided with barbed hook and loop fasteners 39. The round hook and loop fasteners 38 and the barbed hook and loop fasteners 39 are glued together.

[0022] The self-sensing heat dissipation device 3 includes a heat dissipation pipe 6, a bimetallic strip 7, a push rod 8, a hollow fixing limit plate 9, a spring 10, and a sealing plate 11. The heat dissipation pipe 6 is installed through the airbag-type heat pack 1 and is connected through the herbal medicine pack 2. The bimetallic strip 7 is installed on the inner wall of the heat dissipation pipe 6 near one end of the herbal medicine pack 2. The hollow fixing limit plate 9 is installed in the heat dissipation pipe 6 and has a telescopic hole 12 at its center. The push rod 8 is telescopically slidably installed in the telescopic hole 12 and is located above the bimetallic strip 7. The sealing plate 11 is connected to the upper end of the push rod 8. The spring 10 is sleeved on the outside of the push rod 8 and is located between the sealing plate 11 and the hollow fixing limit plate 9. The sealing plate 11 can seal the upper end of the heat dissipation pipe 6.

[0023] The variable timed release device 4 includes a fixed plate 13, a spring-driven screw mechanism 14, and a timed speed regulating component 15. The fixed plate 13 is mounted on the airbag-type heat pack 1, the spring-driven screw mechanism 14 is mounted on the fixed plate 13, and the timed speed regulating component 15 is mounted on the fixed plate 13 and connected to the spring-driven screw mechanism 14. The spring-driven screw mechanism 14 includes a fixed plate frame 16, a rotating gear 17, a spring 18, a rotating column 19, and a knob 20. The fixed plate frame 16 is mounted on the fixed plate 13, and the rotating column 19 is rotatably mounted on the fixed plate frame 16. The rotating gear 17 is located below the rotating column 19. The fixed plate 13 has a vent 32, and the rotating gear 17 has an adapter 33. When the adapter 33 overlaps with the vent 32, the gas in the airbag-type heat pack 1 can be released. One end of the spring 18 is connected to the rotating column 19, and the other end is connected to the fixed plate frame 16. The knob 20 is located above the rotating column 19. The timing speed regulating component 15 includes a meshing gear 21, a fixed cylinder 22, a speed regulating component 23, a screw 24, an adjusting knob 25, and a cone 2. 6. The meshing gear disk 21 is rotatably mounted on the fixed plate 13, and the meshing gear disk 21 is meshed with the rotating gear disk 17. The fixed cylinder 22 is located at the center of the upper wall of the meshing gear disk 21, and a sliding groove 31 is provided on the side wall of the fixed cylinder 22. The screw 24 is rotatably mounted at the center of the meshing gear disk 21 and is located inside the fixed cylinder 22. The speed regulating component 23 is sleeved on the screw 24, and the adjusting knob 25 is located on the screw 24. The cone cylinder 26 is located on the fixed plate 13. The cone cylinder 26 is a cylindrical shape that is narrow at the top and wide at the bottom, and is located outside the fixed cylinder 22. Side; Speed ​​regulating component 23 includes collar rod 27, telescopic limit rod 28, centrifugal spring 29 and speed regulating ball 30. The collar rod 27 is slidably disposed in the slide groove 31 and sleeved on the screw rod 24. The collar rod 27 and the screw rod 24 are threadedly connected. The telescopic limit rod 28 is disposed on the collar rod 27 and the speed regulating ball 30 is disposed on the telescopic limit rod 28. The centrifugal spring 29 is sleeved on the outside of the telescopic limit rod 28. One end of the centrifugal spring 29 is disposed on the collar rod 27 and the other end of the centrifugal spring 29 is disposed on the speed regulating ball 30.

[0024] In practical use, the heated herbal medicine pack is placed in the herbal medicine pack placement bag 2. The bimetallic strip 7 senses the temperature of the herbal medicine pack. When the temperature of the herbal medicine pack is too high, the bimetallic strip 7 will bend and deform, thereby pushing the push rod 8 upward. When the push rod 8 rises, the spring 10 extends, and the sealing plate 11 moves away from the heat dissipation pipe 6, allowing the heat of the herbal medicine pack to dissipate quickly. When the temperature is suitable, the bimetallic strip 7 returns to its original position, and the sealing plate 11 seals the heat dissipation pipe 6. Applying heat to the patient can then effectively prevent burns. The round hook and loop fasteners 38 on the elastic strap 1 36 and the barbed hook and loop fasteners on the elastic strap 2 37 further enhance the heat dissipation. 39. Adhere the components together to fix the device at the location requiring heat application. Inflate the airbag via the inflation component 35, causing the herbal pack to conform closely to the heat application area. Twist the knob 20. Rotating the knob 20 causes the rotating column 19 to rotate, which in turn tightens the spring 18. Simultaneously, rotating the rotating column 19 causes the rotating gear disc 17 to rotate, moving the adapter port 33 away from the vent port 32. Rotating the adjustment knob 25 causes the screw 24 to rotate, which in turn causes the collar rod 27 to rise and fall along the slide groove 31. The rise and fall of the collar rod 27 in turn causes the telescopic limit rod 28 to rise and fall. The telescopic limit rod 28 raises and lowers, causing the speed regulating ball 30 to move up and down against the cone 26. Because the diameter of the cone 26 varies at different points, the pressure exerted by the speed regulating ball 30 on the cone 26 varies at different heights. That is, the smaller the diameter of the cone 26, the greater the resistance to the rotation of the speed regulating ball 30, and consequently, the longer the heat treatment time. This can be adjusted according to the heat treatment time and location of different herbal packs. After adjustment, the knob 20 can be released. At this time, the spring 18 drives the rotating column 19 to reverse direction. The rotation of the rotating column 19 drives the rotating gear 17 to rotate, which in turn drives the meshing gear 21 to rotate. The rotation of the gear plate 21 drives the fixed cylinder 22 to rotate, which in turn drives the collar rod 27 to rotate. The rotation of the collar rod 27 drives the telescopic limit rod 28 to rotate, which in turn drives the speed regulating ball 30 to rotate. The speed regulating ball 30 increases resistance to prevent the rotating gear plate 17 from rotating too fast, allowing the rotating gear plate 17 to gradually return to its original position. When the adapter port 33 overlaps with the vent port 32, the gas in the airbag-type hot compress pack 1 is released, and the airbag-type hot compress pack 1 is separated from the hot compress position, achieving the technical effect of immediate separation after the hot compress is completed. The above is the specific working process of this invention. This step can be repeated for the next use.

[0025] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the foregoing and its equivalents.

[0027] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A traditional Chinese medicine hot compress device, characterized in that: The device includes an airbag-type hot compress pack (1), a herbal medicine pack placement bag (2), a self-sensing heat dissipation device (3), a variable timed release device (4), and an elastic strap (5). The herbal medicine pack placement bag (2) is placed on the airbag-type hot compress pack (1), the self-sensing heat dissipation device (3) is placed on the airbag-type hot compress pack (1), and the self-sensing heat dissipation device (3) is connected to the herbal medicine pack placement bag (2). The variable timed release device (4) is placed on the airbag-type hot compress pack (1), and the elastic strap (5) is placed on the airbag-type hot compress pack (1). The self-sensing heat dissipation device (3) includes a heat dissipation pipe (6), a bimetallic strip (7), a push rod (8), a hollow fixing limit plate (9), a spring (10), and a sealing plate (11). A heat dissipation pipe (6) is installed through the airbag-type hot compress pack (1). The heat dissipation pipe (6) is connected through the Chinese medicine pack placement bag (2). The bimetallic strip (7) is installed on the inner wall of the heat dissipation pipe (6) near the end of the Chinese medicine pack placement bag (2). The hollow fixed limiting plate (9) is installed in the heat dissipation pipe (6). The hollow fixed limiting plate (9) has a telescopic hole (12) at its center. The push rod (8) is telescopically slidably installed in the telescopic hole (12). The push rod (8) is installed above the bimetallic strip (7). The sealing plate (11) is connected to the upper end of the push rod (8). The spring (10) is sleeved on the outside of the push rod (8). The spring (10) is installed between the sealing plate (11) and the hollow fixed limiting plate (9).

2. The traditional Chinese medicine hot compress device according to claim 1, characterized in that: The variable timed release device (4) includes a fixed plate (13), a spring-screwing component (14), and a timed speed regulating component (15). The fixed plate (13) is mounted on the airbag-type hot compress pack (1), the spring-screwing component (14) is mounted on the fixed plate (13), and the timed speed regulating component (15) is mounted on the fixed plate (13). The timed speed regulating component (15) is connected to the spring-screwing component (14).

3. The traditional Chinese medicine hot compress device according to claim 2, characterized in that: The spring-screwing component (14) includes a fixed plate frame (16), a rotating gear (17), a spring (18), a rotating column (19), and a knob (20). The fixed plate frame (16) is mounted on a fixed plate (13). The rotating column (19) is rotatably mounted on the fixed plate frame (16). The rotating gear (17) is located below the rotating column (19). One end of the spring (18) is connected to the rotating column (19), and the other end of the spring (18) is connected to the fixed plate frame (16). The knob (20) is located above the rotating column (19).

4. The traditional Chinese medicine hot compress device according to claim 3, characterized in that: The timing speed regulating component (15) includes a meshing gear disc (21), a fixed cylinder (22), a speed regulating component (23), a screw (24), an adjustment knob (25), and a cone (26). The meshing gear disc (21) is rotatably mounted on the fixed plate (13). The meshing gear disc (21) is meshed with the rotating gear disc (17). The fixed cylinder (22) is located at the center of the upper wall of the meshing gear disc (21). The screw (24) is rotatably mounted at the center of the meshing gear disc (21). The screw (24) is located inside the fixed cylinder (22). The speed regulating component (23) is sleeved on the screw (24). The adjustment knob (25) is located on the screw (24). The cone (26) is located on the fixed plate (13) and is located outside the fixed cylinder (22).

5. A traditional Chinese medicine hot compress device according to claim 4, characterized in that: The speed regulating component (23) includes a collar rod (27), a telescopic limit rod (28), a centrifugal spring (29), and a speed regulating ball (30). The collar rod (27) is sleeved on the screw rod (24) and threadedly connected to the screw rod (24). The telescopic limit rod (28) is located on the collar rod (27). The speed regulating ball (30) is located on the telescopic limit rod (28). The centrifugal spring (29) is sleeved on the outside of the telescopic limit rod (28). One end of the centrifugal spring (29) is located on the collar rod (27), and the other end of the centrifugal spring (29) is located on the speed regulating ball (30).

6. A traditional Chinese medicine hot compress device according to claim 5, characterized in that: The fixed cylinder (22) has a sliding groove (31) on its side wall, and the collar rod (27) is slidably disposed in the sliding groove (31).

7. A traditional Chinese medicine hot compress device according to claim 6, characterized in that: The cone (26) is a cylindrical shape that is narrow at the top and wide at the bottom.

8. A traditional Chinese medicine hot compress device according to claim 7, characterized in that: The fixed plate (13) is provided with an air vent (32), and the rotating gear plate (17) is provided with an adapter (33).

9. A traditional Chinese medicine hot compress device according to claim 8, characterized in that: The airbag-type hot compress pack (1) is provided with a through hose (34), and the through hose (34) is provided with an inflation component (35).

10. A traditional Chinese medicine hot compress device according to claim 9, characterized in that: The elastic strap (5) includes an elastic strap one (36) and an elastic strap two (37). The elastic strap one (36) is provided with a round hook and loop fastener (38), and the elastic strap two (37) is provided with a barbed hook and loop fastener (39). The round hook and loop fastener (38) and the barbed hook and loop fastener (39) are attached together.

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