Device for preventing foot drop and heel pressure sores

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a device for preventing foot drop and heel pressure sores, the device comprises an L-shaped plate, a shank lifting pad and a training assembly, the L-shaped plate comprises a transverse plate and a vertical plate, the shank lifting pad is located on the transverse plate, the training assembly comprises a correction belt and a training adjusting rod, and the correction belt comprises a sole winding belt, a shank winding belt and a binding belt. The sole winding belt is wound on the sole of a patient and then fixed through a hook-and-loop fastener I, the shank winding belt is wound on the shank of the patient and then fixed through a hook-and-loop fastener II, one end of the binding belt is fixedly connected with the sole winding belt, the other end of the binding belt is fixedly connected with the shank winding belt, and the binding belt is provided with a channel I for the training adjusting rod to penetrate through. The L-shaped plate is provided with a horizontally-arranged winding shaft and a forward and reverse rotation motor used for driving the winding shaft to rotate, the two ends of the training adjusting rod are both connected with winding and unwinding ropes, and the ends, away from the training adjusting rod, of the winding and unwinding ropes are fixedly connected with the winding shaft. The leg of a patient can be lifted, the sole of the patient is forced to be close to the leg, foot exercise is achieved, foot drop of the patient is prevented, and pressure sores are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a device for preventing foot drop and heel pressure sores. Background Art

[0002] Patients who are bedridden for a long time due to hemiplegia, coma, etc., have no mobility, so their feet are often in a drooping position during the bed rest, which makes them prone to foot drop. At the same time, the heel is in direct contact with the bed, which makes it easy for the heel to develop pressure sores. At present, in order to prevent patients from foot drop, patients are usually given foot drop correction shoes, but the material of foot drop correction shoes is relatively hard. After use, the contact part between the patient's foot skin and the foot drop correction shoes is prone to pressure sores. Medical staff need to take off the foot drop correction shoes every two hours to check the patient's foot skin condition, which increases the workload of medical staff.

[0003] Moreover, during long-term bed rest, patients lack exercise in their feet, their foot muscles become stiff, their arch elasticity disappears, and their heel tendon tension atrophies, which leads to serious lack of foot flexibility and walking difficulties. After recovery, patients need long-term rehabilitation training. Therefore, it is necessary to design a device that can prevent foot drop and heel pressure sores and exercise patients' feet. Summary of the invention

[0004] The present invention is intended to provide a device for preventing foot drop and heel pressure sores, so as to solve the problem that existing foot drop correction shoes easily cause pressure sores on the heels of patients and cannot train the feet of patients.

[0005] In order to achieve the above-mentioned purpose, the scheme of the present invention is: a device for preventing foot drop and heel pressure sores, comprising an L-shaped plate, a calf raising pad and a training component, the L-shaped plate comprising a horizontal plate and a vertical plate, the calf raising pad is located on the horizontal plate, the training component comprises a correction belt and a training adjustment rod, the correction belt comprises a sole wrapping belt, a calf wrapping belt and a tightening belt, the sole wrapping belt is wrapped around the patient's sole and then fixed by Velcro I, the calf wrapping belt is wrapped around the patient's calf and then fixed by Velcro II, one end of the tightening belt is fixedly connected to the sole wrapping belt, and the other end of the tightening belt is fixedly connected to the calf wrapping belt, and a channel I is provided on the tightening belt for the training adjustment rod to pass through; a horizontally arranged winding shaft and a forward and reverse motor for driving the winding shaft to rotate are installed on the L-shaped plate, both ends of the training adjustment rod are connected to a winding rope, and the end of the winding rope away from the training adjustment rod is fixedly connected to the winding shaft.

[0006] The working principle and beneficial effects of this solution are as follows: in this solution, the patient's calf is placed on the calf raising pad, so that the patient's heel is suspended in the air, avoiding the heel from directly contacting the bed and causing pressure sores; and in this solution, the forward and reverse motor and the reel are used to reel in and release the rope, thereby pulling the training adjustment rod, and the training adjustment rod applies force to the tightening belt, which pulls the sole wrapping belt and the calf wrapping belt closer, so that the patient's instep is close to the calf (foot hooking exercise). In this way, it can prevent foot drop, avoid the use of foot drop correction shoes, thereby avoiding pressure sores caused by foot drop correction shoes, reduce the workload of medical staff, and exercise the patient's feet, which is very practical.

[0007] Optionally, the calf raising pad is provided with a plurality of recessed portions, in which strip airbags are provided, and the strip airbags are connected to an inflation hose I for inflating the strip airbags and an exhaust hose I for extracting gas from the strip airbags.

[0008] In this solution, after the patient's calf is placed on the calf raising pad, the calf part corresponding to the concave part is not stressed. After the strip airbag is inflated, the volume increases, the patient's calf is further raised, and the stress-bearing part of the calf is changed, thereby preventing pressure injuries of the calf.

[0009] Optionally, an annular airbag is fixedly connected to one side wall of the vertical plate close to the horizontal plate, and the annular airbag is connected to an inflation hose II for inflating the annular airbag and an exhaust hose II for extracting gas from the annular airbag.

[0010] In this solution, the volume of the annular airbag increases after inflation, exerting a thrust on the front end of the patient's sole, so that the patient's sole is close to the calf (foot hooking exercise), and then the annular airbag is deflated, the volume decreases, and the patient's sole is automatically reset. In this way, the annular airbag is repeatedly inflated and deflated, thereby pushing the patient's foot to move; and when the patient lies on his side, the annular airbag can still push the patient's foot to move.

[0011] Optionally, the number of the annular airbags is two.

[0012] In this solution, when there are two annular airbags, one annular airbag corresponds to one foot of the patient.

[0013] Optionally, both ends of the training adjustment rod are provided with limiting grooves for the retractable rope to sink into.

[0014] In this solution, the retractable rope is sunk into the limiting groove, which can prevent the retractable rope from axially sliding relative to the training adjustment rod.

[0015] Optionally, a winding limit plate is provided on the winding shaft, and the winding rope is wound between the two winding limit plates.

[0016] In this solution, the retracting rope is reeled in between the two reeling limit plates so that the retracting and releasing amounts of the retracting and releasing ropes at both ends of the training adjustment rod can be kept as consistent as possible during the retracting and releasing process.

[0017] Optionally, a retractable belt is connected to the training adjustment rod.

[0018] In this solution, when the patient is awake, he can pull the training adjustment rod by retracting and releasing the belt to achieve the purpose of exercising the feet, and the degree of force on the soles of the feet can be determined by the patients themselves to avoid excessive stretching of the feet.

[0019] Optionally, a channel II is provided at the end of the retractable belt for the training adjustment rod to pass through.

[0020] In this solution, the retractable belt and the training adjustment rod are detachable.

[0021] Optionally, a pull ring is provided at one end of the retractable belt away from the training adjustment rod.

[0022] In this solution, the design of the pull ring makes it easy for the patient to pull the retractable belt.

[0023] Optionally, a rubber sleeve is fixedly connected to a portion of the training adjustment rod corresponding to channel I on the tightening belt.

[0024] In this solution, compared with the training adjustment rod directly contacting the channel I, the friction resistance between the rubber sleeve and the channel I is greater, and the training adjustment rod is not easy to slide axially relative to the tightening belt when subjected to force. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a device for preventing foot drop and heel pressure sores in Embodiment 1 of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the training component in the first embodiment of the present invention;

[0027] Figure 3 This is a schematic structural diagram of a device for preventing foot drop and heel pressure sores in Embodiment 2 of the present invention;

[0028] Figure 4 for Figure 3 Left side view of the middle annular airbag;

[0029] Figure 5 Schematic diagram of the structure of the device for preventing foot drop and heel pressure sores in Embodiment 3 of the present invention (training components are not shown);

[0030] Figure 6 Schematic diagram of the structure of the training component in the third embodiment of the present invention. DETAILED DESCRIPTION

[0031] The following is further described in detail through specific implementation methods:

[0032] The marks in the drawings of the specification include: L-shaped plate 1, horizontal plate 101, vertical plate 102, calf raising pad 2, recessed portion 201, correction belt 3, sole wrapping belt 301, calf wrapping belt 302, tightening belt 303, training adjustment rod 4, Velcro female surface Ⅰ5, Velcro male surface Ⅰ6, Velcro female surface Ⅱ7, Velcro male surface Ⅱ8, channel Ⅰ9, rubber sleeve 10, reel 11, forward and reverse motor 12, retracting rope 13, reeling limit plate 14, annular airbag 15, inflating hose Ⅱ16, exhaust hose Ⅱ17, inflating pump 18, exhaust pump 19, strip airbag 20, inflating hose Ⅰ21, exhaust hose Ⅰ22, retracting belt 23, pull ring 25.

[0033] Embodiment 1

[0034] This embodiment is basically Figure 1 and Figure 2 As shown: a device for preventing foot drop and heel pressure ulcers, comprising an L-shaped board 1, a calf raising pad 2 and a training component, wherein the L-shaped board 1 comprises a horizontal board 101 and a vertical board 102, and the calf raising pad 2 is located on the horizontal board 101 and is used to raise the patient's calf. The training component includes a correction belt 3 and a training adjustment rod 4. There are two correction belts 3, and each correction belt 3 includes a sole wrapping belt 301, a calf wrapping belt 302 and a tightening belt 303. The sole wrapping belt 301 is wrapped around the patient's sole and fixed by a Velcro I, and the calf wrapping belt 302 is wrapped around the patient's calf and fixed by a Velcro II. Specifically, a Velcro female surface I5 is sewn on one side of the sole wrapping belt 301, and a Velcro male surface I6 is sewn on the other side of the sole wrapping belt 301. A Velcro female surface II7 is sewn on one side of the calf wrapping belt 302, and a Velcro male surface II8 is sewn on the other side of the calf wrapping belt 302. In this way, the sole wrapping belt 301 and the calf wrapping belt 302 can be suitable for different foot shapes, and the device can be suitable for patients of different body shapes. One end of the tightening belt 303 is fixedly connected to the sole wrapping belt 301, and the other end of the tightening belt 303 is fixedly connected to the calf wrapping belt 302. The tightening belt 303 is provided with a channel Ⅰ9 for the training adjustment rod 4 to pass through, so as to facilitate the removal of the training adjustment rod 4 from the tightening belt 303; in this embodiment, the channel Ⅰ9 is formed by sewing the middle part of the tightening belt 303 after the bulge. In addition, the rubber sleeve 10 is bonded to the position of the training adjustment rod 4 corresponding to the channel Ⅰ9 on the tightening belt 303, so that the rubber sleeve 10 contacts the channel Ⅰ9, the friction resistance of the training adjustment rod 4 is relatively large, and it is not easy to slide axially relative to the tightening belt 303.

[0035] The L-shaped plate 1 is provided with a horizontally arranged winding shaft 11 and a forward and reverse motor 12 for driving the winding shaft 11 to rotate. Both ends of the training adjustment rod 4 are connected with a winding rope 13. The end of the winding rope 13 away from the training adjustment rod 4 is fixedly connected to the winding shaft 11. Specifically, the winding rope 13 is wound around the winding shaft 11 and then tied into a slipknot. In this embodiment, the winding shaft 11 is rotatably connected to the horizontal plate 101 through a bearing, and the forward and reverse motor 12 is installed on the horizontal plate 101 through bolts. Both ends of the training adjustment rod 4 are provided with a limit groove for the winding rope 13 to sink into. Four winding limit plates 14 are integrally formed on the winding shaft 11, and the winding rope 13 is wound between two adjacent winding limit plates 14.

[0036] When in use, the device in this embodiment is placed at the end of the bed, and the patient's calf is placed on the calf raising pad 2 (the patient lies flat on the bed). At this time, the patient's heel is in a suspended state, which can prevent heel pressure sores. Then, the nurse wraps the sole wrapping belt 301 around the patient's sole and fixes it with the Velcro female surface Ⅰ5 and the Velcro male surface Ⅰ6, and wraps the calf wrapping belt 302 around the patient's calf and fixes it with the Velcro female surface Ⅱ7 and the Velcro male surface Ⅱ8. It is noted that after the sole wrapping belt 301 and the calf wrapping belt 302 are wrapped, the tightening belt 303 is in a straight state, thereby pulling the patient's sole to prevent foot drop.

[0037] Then, when foot exercise is needed, the forward and reverse motor 12 is started, the forward and reverse motor 12 drives the reel 11 to rotate forward, and the reel rope 13 is reeled between the two reel limit plates 14, thereby pulling the training adjustment rod 4 downward, and the downwardly moved training adjustment rod 4 applies pressure to the reeling belt 303, and the reeling belt 303 applies tension to the sole wrapping belt 301 and the calf wrapping belt 302, forcing the patient's instep to approach the patient's calf, that is, forcing the patient's foot to perform a foot hooking exercise. Then, the forward and reverse motor 12 drives the reel 11 to reverse, releases the reel rope 13, and the reel rope 13 gradually disappears. The tension of the reel rope 13 on the training adjustment rod 4 gradually disappears, and the pressure on the reeling belt 303 gradually disappears, and the patient's foot is naturally reset. In this way, the forward and reverse motor 12 reciprocates to drive the reel 11 forward and reverse, so that the training adjustment rod 4 intermittently applies pressure to the reeling belt 303, and then the patient's foot repeatedly approaches the patient's calf, so as to achieve the patient's foot exercise.

[0038] In summary, the device in this embodiment can not only prevent the patient's foot drop and avoid the occurrence of heel pressure sores, but also exercise the patient's feet.

[0039] Embodiment 2

[0040] The difference between this embodiment and the first embodiment is that: Figure 3 and Figure 4As shown, an annular airbag 15 is fixedly connected to the vertical plate 102. There are two annular airbags 15, corresponding to the left foot and the right foot of the patient respectively. The annular airbag 15 is connected to an inflating hose II 16 for inflating the annular airbag 15 and an exhaust hose II 18 for extracting the gas in the annular airbag 15. The end of the inflating hose II 16 away from the annular airbag 15 is connected to an inflating pump 18, and the end of the exhaust hose II 18 away from the annular airbag 15 is connected to an exhaust pump 19.

[0041] In this embodiment, the air pump 18 is started, and the annular airbag 15 is inflated through the air hose II 16. The volume of the annular airbag 15 increases, and a thrust is applied to the patient's foot, so that the patient's foot is close to the patient's calf, and the sole of the foot is in a vertical state, preventing foot drop. In addition, if the annular airbag 15 continues to be inflated, the volume of the annular airbag 15 continues to increase, forcing the patient's foot to continue to approach the patient's calf, thereby achieving foot hooking exercise; then, the air pump 19 is started, and the gas in the annular airbag 15 is extracted through the air hose II 18, and the volume of the annular airbag 15 is reduced, and the thrust applied to the patient's foot is reduced, and the patient's foot is automatically reset. In this way, in this embodiment, without wearing the correction belt 3, the patient can also be prevented from foot drop and foot exercise, and the patient can lie on his side, at this time the patient's foot is in a horizontal state, and the annular airbag 15 can still push the patient's foot after expansion, thereby preventing foot drop and exercising.

[0042] Embodiment 3

[0043] The difference between this embodiment and the second embodiment is that: Figure 5 As shown, the calf raising pad 2 is provided with a plurality of recessed portions 201, in which strip airbags 20 are provided. The strip airbags 20 are connected to an inflation hose Ⅰ21 for inflating the strip airbags 20 and an exhaust hose Ⅰ22 for extracting the gas in the strip airbags 20. The end of the inflation hose Ⅰ21 away from the strip airbags 20 is connected to the inflation pump 18, and the end of the exhaust hose Ⅰ22 away from the strip airbags 20 is connected to the exhaust pump 19. In this embodiment, the inflation port of the air pump 18 is connected to the inflation hose Ⅰ21 and the inflation hose Ⅱ16 respectively through a Y-type connecting pipe, and the exhaust port of the exhaust pump 19 is connected to the exhaust hose Ⅰ22 and the exhaust hose Ⅱ18 respectively through a Y-type connecting pipe, and valves are installed on the two branch pipes of the Y-type connecting pipe. In this way, the user can choose whether the air pump 18 inflates the strip airbag 20 or the annular airbag 15 and choose whether the air pump 18 extracts the gas from the strip airbag 20 or the annular airbag 15 through the valve.

[0044] In this embodiment, the strip airbag 20 is completely submerged in the recessed portion 201 when not inflated. When the patient's calf is placed on the calf raising pad 2, the calf portion corresponding to the recessed portion 201 is suspended in the air. After the strip airbag 20 is inflated, the volume of the strip airbag 20 increases, and the strip airbag 20 emerges from the recessed portion 201, further raising the patient's calf, changing the force-bearing portion of the patient's calf, thereby preventing the patient from contacting the calf raising pad 2 for a long time and causing pressure sores. In addition, the strip airbag 20 is continuously inflated and deflated, and its volume is constantly changing, achieving pneumatic massage of the patient's calf, improving the patient's comfort.

[0045] Embodiment 4

[0046] The difference between this embodiment and the first embodiment is that: Figure 6 As shown, the training adjustment rod 4 is connected with a retractable belt 23, and the end of the retractable belt 23 is provided with a channel II for the training adjustment rod 4 to pass through. Specifically, the channel II is formed by folding the end of the retractable belt 23 back and sewing it on the retractable belt 23. The end of the retractable belt 23 away from the training adjustment rod 4 is provided with a pull ring 25 for the patient to pull conveniently.

[0047] In this embodiment, when the patient is awake, he can pull the pull ring 25, thereby pulling the training adjustment rod 4 through the retractable belt 23, and the training adjustment rod 4 drives the retractable belt 303 away from the patient's foot, and then pulls the sole wrapping belt 301 and the calf wrapping belt 302, forcing the patient's foot to move closer to the calf; after the patient releases the pull ring 25, the patient's foot is reset, thereby achieving foot exercise, and the patient can control the training intensity by himself.

[0048] The above are only embodiments of the present invention. The invention is not limited to the fields involved in this implementation case. The common sense such as the known specific structures and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field to which the invention belongs before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the present invention. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to explain the content of the claims.

Claims

1. A device for preventing foot drop and heel pressure sores, characterized in that: The invention comprises an L-shaped plate, a calf raising pad and a training component, wherein the L-shaped plate comprises a horizontal plate and a vertical plate, the calf raising pad is located on the horizontal plate, the training component comprises a correction belt and a training adjustment rod, the correction belt comprises a sole wrapping belt, a calf wrapping belt and a tightening belt, the sole wrapping belt is wrapped around the sole of the patient and then fixed by a Velcro I, the calf wrapping belt is wrapped around the patient's calf and then fixed by a Velcro II, one end of the tightening belt is fixedly connected to the sole wrapping belt, the other end of the tightening belt is fixedly connected to the calf wrapping belt, and a channel I for the training adjustment rod to pass through is provided on the tightening belt; a horizontally arranged winding shaft and a forward and reverse motor for driving the winding shaft to rotate are installed on the L-shaped plate, both ends of the training adjustment rod are connected with a winding rope, and the end of the winding rope away from the training adjustment rod is fixedly connected to the winding shaft.

2. The device for preventing foot drop and heel pressure sores according to claim 1, characterized in that: The calf raising pad is provided with a plurality of recessed parts, in which strip air bags are arranged, and the strip air bags are connected with an inflation hose I for inflating the strip air bags and an exhaust hose I for extracting gas from the strip air bags.

3. The device for preventing foot drop and heel pressure sores according to claim 1 or 2, characterized in that: An annular airbag is fixedly connected to one side wall of the vertical plate close to the horizontal plate, and the annular airbag is connected to an inflation hose II for inflating the annular airbag and an exhaust hose II for extracting gas from the annular airbag.

4. The device for preventing foot drop and heel pressure sores according to claim 3, characterized in that: The number of the annular airbags is two.

5. The device for preventing foot drop and heel pressure sores according to claim 1, characterized in that: Both ends of the training adjustment rod are provided with limiting grooves for the collection and release rope to sink into.

6. The device for preventing foot drop and heel pressure sores according to claim 1, characterized in that: The reel is provided with a reeling limit plate, and the reeling rope is reeled in between the two reeling limit plates.

7. The device for preventing foot drop and heel pressure sores according to claim 1, characterized in that: The training adjustment rod is connected with a retractable belt.

8. The device for preventing foot drop and heel pressure sores according to claim 7, characterized in that: The end of the retractable belt is provided with a channel II for the training adjustment rod to pass through.

9. The device for preventing foot drop and heel pressure sores according to claim 8, characterized in that: A pull ring is arranged at one end of the retractable belt away from the training adjustment rod.

10. The device for preventing foot drop and heel pressure sores according to claim 1, characterized in that: The training adjustment rod is fixedly connected with a rubber sleeve at a position corresponding to the channel I on the tightening belt.

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