A heel-adjustable Achilles boot for use with patients having a ruptured Achilles tendon

Abstract

The present application relates to the technical field of Achilles tendon boots, and provides a heel adjusting type Achilles tendon boot used by patients with Achilles tendon rupture, which comprises a boot cylinder, a sole fixed to the bottom of the boot cylinder, and a set of Achilles tendon pads, and is characterized in that the sole comprises a hard sole and a soft sole which are stacked and fixed from top to bottom, a sliding support is slidably installed on the hard sole along the length direction of the sole, the sliding support is detachably fixedly connected with the hard sole through a locking piece, an air bag is installed on the side of the sliding support towards the toe, and an elastic buffer is installed on the side of the sliding support towards the heel, and the air bag is supplied with air by a pressing type air pump assembly. The present application overcomes the shortcomings of the prior art, is reasonable in design, moderate in adjustment, and solves the technical problem that the wearing experience is poor for patients with Achilles tendon rupture, especially for patients with high instep, in the process of wearing the Achilles tendon boot.

Description

Technical Field

[0001] This invention relates to the field of Achilles tendon boot technology, and more specifically to an adjustable Achilles tendon boot for use by patients with Achilles tendon rupture. Background Technology

[0002] After the cast on the injured leg is removed, patients with ruptured Achilles tendons wear Achilles tendon boots to protect the affected limb when putting weight on it. Because the Achilles tendon's resilience is poor post-surgery, the ankle's dorsiflexion angle cannot immediately return to 90°. Therefore, a set of Achilles tendon pads is needed to supplement this, overcoming issues such as stress on the Achilles tendon and the inability to put weight on the heel during standing. A set of Achilles tendon pads typically contains five pieces, and one piece is removed periodically according to the doctor's instructions to gradually restore the dorsiflexion angle. In actual use, the foot is tilted within the Achilles tendon boot with the pads, causing a forward lean during walking. This is usually addressed by increasing the size of the tongue, such as by tightening the straps, but this results in a less comfortable wearing experience, especially for patients with high insteps.

[0003] Therefore, we propose a heel-adjustable Achilles tendon boot for use by patients with Achilles tendon rupture. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an adjustable Achilles tendon boot for patients with Achilles tendon ruptures. It overcomes the deficiencies of existing technologies, has a reasonable design, and provides appropriate adjustment, thus solving the technical problem of poor wearing experience for Achilles tendon rupture patients, especially those with high insteps.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An adjustable Achilles tendon boot for patients with Achilles tendon rupture includes a boot shaft, a sole fixed to the bottom of the boot shaft, and a set of Achilles tendon pads, characterized in that:

[0007] The sole includes a hard sole and a soft sole stacked and fixed from top to bottom. A sliding bracket is slidably installed above the hard sole along the length of the sole. The sliding bracket is detachably fixed to the hard sole by a locking member. An air bladder is installed on the side of the sliding bracket facing the toe and an elastic cushioning member is installed on the side facing the heel. The air bladder is supplied with air by a press-type air pump assembly.

[0008] After adopting the above solution, adjust the sliding bracket so that the patient's toes touch the elastic cushioning component, then lock the sliding bracket, inflate the airbag, and the inflated airbag supports the boot shaft, improving the overall support effect of the sliding bracket, thereby reducing the need for tightness of the shoe tongue and improving the wearing experience; in addition, the vertical frame of the sliding bracket supports and holds the elastic cushioning component, and the airbag can also reinforce the vertical frame of the sliding bracket to prevent it from deforming and failing.

[0009] A further feature is that the hard sole has an upper through hole running vertically through it, the soft sole has a lower through hole running vertically through it and directly opposite the upper through hole, the locking member passes through the upper through hole and fixes the sliding bracket and the hard sole in place, and the lower through hole is sealed by a sealing plate.

[0010] The locking component is a bolt, and the bottom of the sliding bracket is provided with a threaded hole or a nut is pre-welded thereon. The bolt is threadedly connected to the threaded hole or the nut.

[0011] One end of the sealing plate is hinged to the soft sole with a flexible hinge, and the sealing plate is fastened to the soft sole in the circumferential direction by buckles.

[0012] A further feature is that the sliding bracket is in the shape of an inverted T, the airbag and the elastic buffer are respectively disposed on the front and rear sides of the vertical plate of the sliding bracket, the horizontal plate of the sliding bracket is laid flat on the hard base plate, and the left and right sides of the horizontal plate are respectively slidably engaged with the grooves on the left and right sides of the hard base plate.

[0013] A further feature is that the pressure-type air pump assembly includes an elastic cover, a base plate, an inlet one-way valve, an outlet one-way valve, and an exhaust valve. The opening of the elastic cover is sealed by the base plate, which is fixed to the boot. A first air inlet is provided on the base plate, and an inlet one-way valve is installed at the first air inlet. An air outlet is provided on the side of the elastic cover, and an outlet one-way valve is installed at the outlet. The one-way valve is connected to the airbag through a pipeline.

[0014] The intake one-way valve includes an intake valve seat, an intake valve housing, and an intake valve plate. The intake valve seat is fixed on the base plate and arranged around the first intake hole. The intake valve housing is threaded onto the intake valve seat. A second intake hole is opened on the top wall of the intake valve housing. The intake valve plate is installed in the cavity surrounded by the intake valve housing, the intake valve seat, and the base plate.

[0015] Preferably, the housing is provided with a valve plate adjustment unit, which includes a telescopic sleeve, a first spring, a pressure plate, a first pressure rod, a second pressure rod, a lifting rod, a second spring, a guide rod, and a limiting block; the upper end of the telescopic sleeve is fixedly connected to the top of the elastic housing, and its lower part can be sleeved on the outside of the air intake valve housing; the first spring, the pressure plate, and the first pressure rod are sequentially fixed and arranged inside the telescopic sleeve from top to bottom; the upper end of the first spring is fixedly connected to the top of the elastic housing; the first pressure rod can pass through the second air intake hole; the second pressure rod ( The second pressure rod is slidably connected to the lower end of the telescopic sleeve along the axial direction. The upper end of the second pressure rod is pressed by the pressure plate. Several lifting rods are arranged around the outer periphery of the intake valve seat and radially along the intake valve seat. The lifting rods are slidably installed on the base plate. Under the action of the second spring, the lifting rods can pass through the intake valve seat and push the intake valve plate up. The lifting rods are provided with notches. The lower part of the outer side wall of the second pressure rod and the upper part of the rear side wall of the notch are connected by inclined surfaces (lower guide inclined surface and upper guide inclined surface, respectively), so that the lifting rods can move outward against the action of the second spring.

[0016] To ensure the reliability of the intake valve plate on the lifting rod, the top of the intake valve housing is provided with a vertically downward extending spindle. The intake valve plate is sleeved on the spindle through the central hole. The bottom plate is provided with an upward extending annular boss. A guide groove that cooperates with the lifting rod is opened on the annular boss. The lower outer edge of the intake valve plate is engaged with the upper front end of the lifting rod through an inclined surface.

[0017] The one-way valve includes a conical elastic body with its large-diameter end facing the elastic housing and its small-diameter end facing away from the elastic housing. The small-diameter end of the elastic body is provided with a slit. When not subjected to external air pressure, the slit is closed. When subjected to external air pressure, the elastic body expands and the slit opens.

[0018] An exhaust valve is installed on the connecting pipe connected to the one-way valve. The exhaust valve includes a valve stem, a sealing cone sleeve, an exhaust valve seat, and a third spring. The exhaust valve seat is fixed and connected to the connecting pipe. The valve stem is inserted into the exhaust valve seat. The sealing cone sleeve is sleeved between the valve stem and the exhaust valve seat and is threadedly connected to the exhaust valve seat. The cone surface at the lower end of the sealing cone sleeve and the cone-shaped part at the lower end of the valve stem are sealed by the cone surface. The third spring is disposed in the exhaust valve seat. The upper and lower ends of the third spring abut against the cone-shaped part of the valve stem and the bottom wall of the exhaust valve seat, respectively. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 for Figure 1 A magnified structural diagram of point A in the middle;

[0021] Figure 3 for Figure 1 A magnified structural diagram of section B in the middle;

[0022] Figure 4 This is a schematic diagram of the press-type air pump assembly in this invention;

[0023] Figure 5 for Figure 4 A magnified structural diagram of section C in the middle.

[0024] In the picture:

[0025] 1. Boot shaft;

[0026] 2. Hard sole;

[0027] 2a. Top perforation;

[0028] 2b. Card slot;

[0029] 2c. Internal air passage;

[0030] 3. Soft sole;

[0031] 3a. Bottom perforation;

[0032] 4. Achilles tendon pad;

[0033] 5. Sliding bracket;

[0034] 6. Airbags;

[0035] 7a. First intake pipe;

[0036] 7b. Second air intake pipe;

[0037] 8. Locking components;

[0038] 9. Seal the plate;

[0039] 9a. Flexible hinge joint;

[0040] 9b. Pull ring;

[0041] 9c, buckle;

[0042] 10. Elastic cushioning components;

[0043] 11. Elastic casing;

[0044] 12. Base plate;

[0045] 12a. First air inlet;

[0046] 12b. First air guide channel;

[0047] 130. Intake check valve;

[0048] 131. Intake valve housing;

[0049] 131a. Second air intake;

[0050] 132. Intake valve seat;

[0051] 133. Intake valve plate;

[0052] 133a, Second lower guide ramp;

[0053] 140. Valve plate adjustment unit;

[0054] 141. First pressure bar;

[0055] 142. Pressure plate;

[0056] 143. The first spring;

[0057] 144a. First telescopic sleeve;

[0058] 144b, Second telescopic sleeve;

[0059] 145. Second pressure bar;

[0060] 145a, First lower guide ramp;

[0061] 146. Lifting rod;

[0062] 146a. Gap;

[0063] 146b, First upper guide ramp;

[0064] 146c, Second upper guide ramp;

[0065] 147. The second spring;

[0066] 148. Guide rod;

[0067] 149. Limit block;

[0068] 151. Valve stem;

[0069] 152. Exhaust valve seat;

[0070] 153. Sealing cone sleeve;

[0071] 154. The third spring;

[0072] 150. Exhaust valve;

[0073] 160. One-way valve for exhaust. Detailed Implementation

[0074] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0075] See attached document Figures 1-5 An adjustable Achilles tendon boot for use by patients with Achilles tendon rupture includes a boot shaft 1, a sole fixed to the bottom of the boot shaft 1, and a set of Achilles tendon pads 4.

[0076] The sole includes a hard sole 2 and a soft sole 3 stacked and fixed from top to bottom. A sliding bracket 5 is slidably installed above the hard sole 2 along the length of the sole. The sliding bracket 5 is detachably fixed to the hard sole 2 by a locking member 8. An airbag 6 is installed on the side of the sliding bracket 5 facing the toe and an elastic cushioning member 10 is installed on the side facing the heel. The airbag 6 is supplied with air by a press-type air pump assembly.

[0077] After adopting the above scheme, adjust the sliding bracket 5 so that the patient's toes touch the elastic buffer 10, then lock the sliding bracket 5, inflate the airbag 6, and after the airbag 6 inflates, it supports the boot shaft 1, improving the overall support effect of the sliding bracket 5, thereby reducing the need for tightness of the shoe tongue and improving the wearing experience.

[0078] In this embodiment, the hard sole 2 has an upper through hole 2a extending vertically, and the soft sole 3 has a lower through hole 3a extending vertically and directly opposite the upper through hole 2a. The locking member 8 passes through the upper through hole 2a and fixes the sliding bracket 5 and the hard sole 2 in a fixed connection. The lower through hole 3a is sealed by a sealing plate 9. The locking member 8 is a bolt, and a nut is pre-welded to the bottom of the sliding bracket 5. The bolt and nut are threaded together. The nut can also be configured to slide and guide within the upper through hole 2a to improve the stability of the sliding bracket 5's movement.

[0079] The sealing plate 9 has a flexible hinge 9a at its front end that is hinged to the soft sole 3, and a pull ring 9b at its rear end. The sealing plate 9 is circumferentially fastened to the slot 2b of the soft sole 3 via a buckle 9c. The buckle 9c and slot 2b can be designed as metal parts and inlaid on the corresponding sealing plate 9 and soft sole 3 to improve the stability of the fastening. Preferably, the sealing plate 9 and its flexible hinge 9a are higher than the bottom surface of the soft sole 3 to reduce wear.

[0080] In this embodiment, the sliding support 5 is inverted T-shaped. The airbag 6 and the elastic buffer 10 are respectively disposed on the front and rear sides of the vertical plate of the sliding support 5. Preferably, the elastic buffer 10 can be made of sponge or foam shoe material, covering the rear part of the sliding support 5, that is, the rear part of the vertical plate and the horizontal plate. The horizontal plate of the sliding support 5 is laid flat on the rigid sole plate 12, and the left and right sides of the horizontal plate are respectively inserted into the grooves on the left and right sides of the rigid sole plate 12 and slide in cooperation with the grooves. After the airbag 6 is inflated, it can not only support the boot shaft 1, but also support the vertical plate of the sliding support 5, preventing the vertical plate from deforming or failing after the toes touch it, thus improving the reliability of the structure. In order to improve the wrapping of the toes, the vertical plate can be designed as a ┌ shape, that is, an inverted L shape.

[0081] In this embodiment, the pressure air pump assembly includes an elastic cover 11, a base plate 12, an inlet one-way valve 130, an outlet one-way valve 160, and an exhaust valve 10. The opening of the elastic cover 11 is sealed by the base plate 12, which is fixed to the boot 1. The base plate 12 has a first air inlet hole 12a, and an inlet one-way valve 130 is installed at the first air inlet hole 12a. An air outlet is opened on the side of the elastic cover 11, and an outlet one-way valve 160 is installed at the outlet. The one-way valve is connected to the airbag 6 through a pipeline. The pipeline includes a first air inlet pipe 7a and a second air inlet pipe 7b (both are rigid air pipes) disposed in the upper perforation 2a, and an internal air passage 2c opened in the rigid sole 2. The airbag 6, the first air inlet pipe 7a, the second air inlet pipe 7b, and the internal air passage 2c are connected in sequence (the internal air passage 2c is connected to the air outlet pipe of the elastic cover 11 through other pipelines). The first air inlet pipe 7a and the second air inlet pipe 7b are sleeved together, and multiple sealing rings are provided at the joint. This structure allows the first air inlet pipe 7a to move relative to the second air inlet pipe 7b when the sliding bracket 5 moves. In other embodiments, the first air inlet pipe 7a and the second air inlet pipe 7b can be replaced with other air pipe structures with telescopic function.

[0082] The intake one-way valve 130 includes an intake valve seat 132, an intake valve housing 131, and an intake valve plate 133. The intake valve seat 132 is fixed on the base plate 12 and arranged around the first intake hole 12a. The intake valve housing 131 is threaded onto the intake valve seat 132. A second intake hole 131a is opened on the top wall of the intake valve housing 131. The intake valve plate 133 is installed in the cavity surrounded by the intake valve housing 131, the intake valve seat 132, and the base plate 12. When the elastic cover 11 is pressed, the internal pressure of the cover increases, pressing the air intake valve plate 133 onto the base plate 12 to seal the first air intake hole 12a. This allows the internal gas to be discharged through the one-way valve 160, thus inflating the airbag 6. After pressing, the elastic cover 11 is released, and the air intake valve plate 133 floats up under the action of external air pressure, connecting the first air intake hole 12a and the second air intake hole 131a, inflating the interior of the elastic cover 11. At the same time, the elastic cover 11 returns to its original shape due to its self-elasticity. The inner side wall of the top plate of the air intake valve cover 131 is provided with a second air guide groove, which connects to the second air intake hole 131a. Even when the second air intake hole 131a is blocked and covered by the air intake valve plate 133, the second air guide groove can still communicate with the inner cavity of the air intake valve cover 131, thereby enabling air intake. Correspondingly, the bottom of the base plate 12 is provided with a first air guide groove 12b that communicates with the first air inlet 12a to guide the air intake.

[0083] Preferably, the housing is provided with a valve plate adjusting unit 140, which includes a telescopic sleeve, a first spring 143, a pressure plate 142, a first pressure rod 141, a second pressure rod 145, a lifting rod 146, a second spring 147, a guide rod 148, and a limiting block 149. The telescopic sleeve is shown in two sections, namely a first telescopic sleeve 144a and a second telescopic sleeve 144b. The inner wall of the first telescopic sleeve has several T-shaped grooves extending from top to bottom (not extending through). The outer wall of the second telescopic sleeve 144b has T-shaped sliders corresponding to the T-shaped grooves. The T-shaped sliders are slidably installed in the T-shaped grooves, allowing the first telescopic sleeve to... The first telescopic sleeve 144a can slide vertically relative to the second telescopic sleeve 144b to achieve a telescopic function; the upper end of the first telescopic sleeve 144a is fixedly connected to the top of the elastic cover 11, and the second telescopic sleeve 144b can be sleeved on the outside of the air intake valve housing 131. The first spring 143, the pressure plate 142, and the first pressure rod 141 are sequentially fixedly connected from top to bottom and disposed inside the telescopic sleeve. The upper and lower ends of the first spring 143 are fixedly connected to the top of the elastic cover 11 and the pressure plate 142 respectively by clamps or hooks. The first pressure rod 141 can pass through the second air intake hole 131a, and the second pressure rod 145 (along the axial direction) is slidably connected to the second telescopic sleeve 144a. The lower end of b (refer to the sliding fit structure of the T-groove and T-slider between the first telescopic sleeve 144a and the second telescopic sleeve 144b), the upper end of the second pressure rod 145 is pressed by the pressure plate 142 (the pressure plate 142 and the second telescopic sleeve 144b are in sliding fit), a plurality of the lifting rods 146 surround the outer periphery of the intake valve seat 132 and are arranged radially along the intake valve seat 132, the lifting rods 146 are slidably mounted on the base plate 12, the lifting rods 146 can pass through the intake valve seat 132 under the action of the second spring 147 and push the intake valve plate 133 upward. Specifically, the rear end of the lifting rod 146 is connected to the guide rod 148, the guide rod 148 passes through the limiting block 1 In section 49, the limiting block 149 is fixed on the base plate 12, and the second spring 147 is sleeved on the guide rod 148 with its two ends abutting against the lifting rod 146 and the limiting block 149 respectively. The lifting rod 146 is provided with a notch 146a. The lower part of the outer side wall of the second pressure rod 145 and the upper part of the rear side wall of the notch 146a are connected by inclined surfaces (the first lower guide inclined surface 145a and the first upper guide inclined surface 146b, respectively), so that the lifting rod 146 can overcome the action of the second spring 147 and move outward, so that when the first pressure rod 141 presses down the intake valve plate 133, the lifting rod 146 is prevented from interfering with the first intake valve plate 133, and the intake valve plate 133 can effectively seal the first intake hole 12a.

[0084] To ensure the reliability of the intake valve plate 133 being pushed up by the lifting rod 146, the top of the intake valve housing 131 is provided with a vertically downward extending spindle. The intake valve plate 133 is sleeved on the spindle through a central hole. The base plate 12 is provided with an upward extending annular boss. The annular boss has a guide groove that cooperates with the lifting rod 146. The lower outer edge of the intake valve plate 133 and the upper front end of the lifting rod 146 are engaged by inclined surfaces (the second lower guide inclined surface 133a and the second upper guide inclined surface 146c, respectively). When the intake valve plate 133 is simultaneously squeezed by multiple circumferential lifting rods 146, under the guidance of the inclined surfaces and the spindle, the intake valve plate 133 will move upward, preventing the intake valve plate 133 from adhering to the first intake hole 12a and being unable to detach.

[0085] The one-way valve 160 includes a conical elastomer made of silicone or rubber. The large-diameter end of the elastomer faces the elastic housing 11, while its small-diameter end faces away from it. The small-diameter end of the elastomer has a slit. Under normal conditions without external air pressure, the slit is closed. Under external air pressure, the elastomer expands, causing the slit to open. The large-diameter end of the elastomer has an outward-flared flange, which is press-fitted to the air outlet connector of the elastic housing 11 using a pressure ring and bolts. To improve the sealing effect at the slit end of the elastomer, a flat sealing reinforcement section can be provided at the slit end. This sealing reinforcement section is integrally formed with the elastomer, and the slit passes through it. A spring can be selectively embedded in the sealing reinforcement section to improve the sealing closure effect of the slit under normal conditions.

[0086] An exhaust valve is installed on the connecting pipe connected to the one-way valve 160. The exhaust valve includes a valve stem 151, a sealing cone sleeve 153, an exhaust valve seat 152, and a third spring 154. The exhaust valve seat 152 is fixed and connected to the connecting pipe. The valve stem 151 is inserted into the exhaust valve seat 152. The sealing cone sleeve 153 is sleeved between the valve stem 151 and the exhaust valve seat 152 and is threadedly connected to the exhaust valve seat 152. The conical surface at the lower end of the sealing cone sleeve 153 and the conical portion at the lower end of the valve stem 151 are sealed by the conical surface. The third spring 154 is disposed in the exhaust valve seat 152, and its upper and lower ends abut against the conical portion of the valve stem 151 and the bottom wall of the exhaust valve seat 152, respectively. Pressing the valve stem 151 downwards separates the conical portion and the conical surface, allowing gas to escape from the gap between the sealing cone sleeve 153 and the valve stem 151, thus achieving exhaust.

[0087] In some embodiments, the boot shaft 1 has other airbags 6 built in to improve the fit between the Achilles tendon boot and the injured leg. A three-way valve can be installed at the air outlet end of the elastic cover 11, and an exhaust valve can be installed at each air outlet of the three-way valve to switch the inflation line.

[0088] 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 a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0089] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A heel-adjustable Achilles tendon boot for use by patients with Achilles tendon rupture, comprising a boot shaft, a sole fixed to the bottom of the boot shaft, and a set of Achilles tendon pads, characterized in that: The sole includes a hard sole and a soft sole stacked and fixed from top to bottom. A sliding bracket is slidably installed above the hard sole along the length of the sole. The sliding bracket is detachably fixed to the hard sole by a locking member. An air bladder is installed on the side of the sliding bracket facing the toe and an elastic cushioning member is installed on the side facing the heel. The air bladder is supplied with air by a press-type air pump assembly.

2. The heel-adjustable Achilles tendon boot for patients with Achilles tendon rupture according to claim 1, characterized in that: The hard sole has an upper through hole running vertically through it, and the soft sole has a lower through hole running vertically through it and directly opposite the upper through hole. The locking member passes through the upper through hole and fixes the sliding bracket and the hard sole in place. The lower through hole is sealed by a sealing plate.

3. The heel-adjustable Achilles tendon boot for patients with Achilles tendon rupture according to claim 2, characterized in that: The locking component is a bolt, and the bottom of the sliding bracket is provided with a threaded hole or a nut is pre-welded thereon. The bolt is threadedly connected to the threaded hole or nut.

4. The heel-adjustable Achilles tendon boot for patients with Achilles tendon rupture according to claim 2, characterized in that: One end of the sealing plate is hinged to the soft sole with a flexible hinge, and the sealing plate is fastened to the soft sole in the circumferential direction by buckles.

5. The heel-adjustable Achilles tendon boot for patients with Achilles tendon rupture according to claim 1, characterized in that: The sliding bracket is in the shape of an inverted T. The airbag and elastic buffer are respectively located on the front and rear sides of the vertical plate of the sliding bracket. The horizontal plate of the sliding bracket is laid flat on the hard base plate. The left and right sides of the horizontal plate slide in cooperation with the grooves on the left and right sides of the hard base plate, respectively.

6. The heel-adjustable Achilles tendon boot for patients with Achilles tendon rupture according to claim 1, characterized in that: The pressure-type air pump assembly includes an elastic cover, a base plate, an inlet one-way valve, an outlet one-way valve, and an exhaust valve. The opening of the elastic cover is sealed by the base plate, which is fixed to the boot. A first air inlet is provided on the base plate, and an inlet one-way valve is installed at the first air inlet. An air outlet is provided on the side of the elastic cover, and an outlet one-way valve is installed at the outlet. The one-way valve is connected to the airbag through a pipeline.

7. The heel-adjustable Achilles tendon boot for patients with Achilles tendon rupture according to claim 6, characterized in that: The intake one-way valve includes an intake valve seat, an intake valve housing, and an intake valve plate. The intake valve seat is fixed to the base plate and arranged around the first intake hole. The intake valve housing is threaded onto the intake valve seat. A second intake hole is opened on the top wall of the intake valve housing. The intake valve plate is installed in the cavity surrounded by the intake valve housing, the intake valve seat, and the base plate.

8. A heel-adjustable Achilles tendon boot for patients with Achilles tendon rupture according to claim 7, characterized in that: The housing contains a valve plate adjustment unit, which includes a telescopic sleeve, a first spring, a pressure plate, a first pressure rod, a second pressure rod, a lifting rod, a second spring, a guide rod, and a limiting block. The upper end of the telescopic sleeve is fixedly connected to the top of the elastic housing, and its lower part can be fitted onto the outside of the air intake valve housing. The first spring, pressure plate, and first pressure rod are sequentially fixed and arranged inside the telescopic sleeve from top to bottom. The upper end of the first spring is fixedly connected to the top of the elastic housing, and the first pressure rod can pass through the second air intake hole. The second pressure rod is slidably connected to the lower end of the telescopic sleeve, and the upper end of the second pressure rod is pressed by a pressure plate. Several lifting rods surround the outer periphery of the intake valve seat and are arranged radially along the intake valve seat. The lifting rods are slidably installed on the base plate. Under the action of the second spring, the lifting rods can pass through the intake valve seat and push the intake valve plate up. The lifting rods are provided with notches. The lower part of the outer side wall of the second pressure rod and the upper part of the rear side wall of the notch are engaged by a bevel, so that the lifting rods can move outward against the action of the second spring.

9. A heel-adjustable Achilles tendon boot for patients with Achilles tendon rupture as described in claim 8, characterized in that: The top of the intake valve housing is provided with a vertically downward extending spindle. The intake valve plate is sleeved on the spindle through the central hole. The bottom plate is provided with an upward extending annular boss. The annular boss is provided with a guide groove that cooperates with the lifting rod. The lower outer edge of the intake valve plate is engaged with the upper front end of the lifting rod through an inclined surface.

10. A heel-adjustable Achilles tendon boot for patients with Achilles tendon rupture according to claim 6, characterized in that: The one-way valve for air outlet includes a conical elastomer. The large-diameter end of the elastomer faces the elastic housing, and its small-diameter end faces away from the elastic housing. The small-diameter end of the elastomer is provided with a slit. When not subjected to external air pressure, the slit is closed. When subjected to external air pressure, the elastomer expands and the slit opens.

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