Heel support device for preventing heel pressure injury

Abstract

The utility model discloses a heel support device for preventing heel pressure injury, which comprises a bottom plate, a cavity is arranged in the bottom plate, two slide rails for guiding front and back are symmetrically mounted at the bottom of the cavity, extension plates are mounted on the two slide rails in a sliding manner, racks parallel to the slide rails are mounted at the tops of the two extension plates, and the racks are connected with the slide rails in a sliding manner. A first rotating shaft is rotationally installed between the left inner side wall and the right inner side wall of the cavity, the first rotating shaft is close to the rear side of the bottom plate and is perpendicular to the sliding rail, two gears are installed on the first rotating shaft, and the two gears are engaged with the two racks correspondingly; according to the heel support device capable of preventing the heel pressure injury, the supporting structure is arranged to abut against the front sole of a patient, the heel of the patient can be suspended, and foot ectropion or foot drop of the patient can be prevented; the gear can be meshed with the rack to drive the extension plate to translate, so that the position of the supporting structure is adjusted according to the leg length of the patient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary appliances, in particular to a heel support device for preventing heel pressure injuries. Background Art

[0002] When patients lie in bed for a long time, their heels may be squeezed by the bed for a long time, causing heel pressure injuries. To avoid this kind of injury, medical staff usually put a calf pad under the patient's calf to keep the patient's heel suspended in the air. However, this method of keeping the patient's heel suspended in the air does not support the patient's foot, so the patient often suffers from foot valgus or foot drop.

[0003] For this reason, we design a heel support device here to prevent heel pressure injury. Utility Model Content

[0004] The purpose of the present invention is to provide a heel support device for preventing heel pressure injuries in view of the deficiencies in the prior art, so as to solve the problems raised in the background art.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a heel support device for preventing heel pressure injuries, comprising a base plate, a cavity being provided inside the base plate, two front and rear guiding slide rails being symmetrically mounted on the bottom of the cavity, extension plates being slidably mounted on the two slide rails, racks being mounted on the tops of the two extension plates and being parallel to the slide rails, a first rotating shaft being rotatably mounted between the left and right inner side walls of the cavity, the first rotating shaft being close to the rear side of the base plate and being perpendicular to the slide rails, two gears being mounted on the first rotating shaft, the two gears being respectively engaged with the two racks;

[0006] A second rotating shaft and a worm are rotatably mounted on the bottom of the cavity of the base plate through a bearing seat. The second rotating shaft is perpendicular to the first rotating shaft, and the worm is parallel to the first rotating shaft. A set of meshing bevel gears is installed between the rear end of the second rotating shaft and the first rotating shaft. A worm wheel is installed on the second rotating shaft, and the worm wheel is meshed with the worm.

[0007] A support structure is provided at the rear of the base plate. Two through holes for the extension plate and the rack to pass through are provided on the rear side wall of the cavity of the base plate. The rear ends of the two extension plates pass through the through holes on the rear side of the base plate and are fixed on the support structure.

[0008] Preferably, the supporting structure includes a U-shaped rod, a collar, a positioning pin and a contact plate. The rear ends of the two extension plates are fixedly mounted on the front side of the lower horizontal rod of the U-shaped rod. A vertical row of positioning holes with equal spacing are respectively opened on the outward side of the left and right vertical rods of the U-shaped rod. Collars are installed on the left and right sides of the contact plate. The two collars are respectively mounted on the left and right vertical rods of the U-shaped rod. A circular through hole is provided on the side of the collar, and the pin of the positioning pin passes through the circular through hole on the collar and is inserted into the positioning hole.

[0009] Preferably, a calf pad is installed on the top of the base plate.

[0010] Preferably, the left end of the main shaft of the worm passes through the left wall of the cavity of the base plate and is equipped with a knob.

[0011] Preferably, a first limiting rod perpendicular to the slide rail is installed between the two extension plates and near the front end, and a second limiting rod parallel to the first limiting rod is installed at the bottom of the cavity of the base plate, and the second limiting rod is located between the first limiting rod and the second rotating shaft.

[0012] Preferably, a foot pad is installed in front of the contact plate.

[0013] Preferably, a magnet is embedded on the deepest inner side wall of the positioning hole, and the pin of the positioning latch is made of iron.

[0014] Compared with the prior art, the present invention provides a heel support device for preventing heel pressure injuries, which has the following beneficial effects:

[0015] The heel support device for preventing heel pressure injuries, by providing a support structure to contact the patient's forefoot, can not only keep the patient's heel suspended in the air, but also prevent the patient's foot from everting or dropping. By providing a worm and a worm wheel to control the first rotating shaft to drive the gear to rotate, the gear can drive the extension plate to translate by meshing with the rack, thereby adjusting the position of the support structure according to the patient's leg length. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the bottom plate of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of A of the utility model;

[0019] Figure 4 This is a front sectional view of the vertical rod of the U-shaped rod of the utility model.

[0020] Figure numerals: 1, base plate; 2, slide rail; 3, extension plate; 4, rack; 5, first rotating shaft; 6, gear; 7, second rotating shaft; 8, bevel gear; 9, worm gear; 10, worm; 11, U-shaped rod; 12, positioning hole; 13, collar; 14, positioning pin; 15, contact plate; 16, calf pad; 17, foot pad; 18, knob; 19, first limiting rod; 20, second limiting rod; 21, magnet. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1-4 In this embodiment: a heel support device for preventing heel pressure injury, comprising a bottom plate 1, see Figure 1 and Figure 2 A calf pad 16 is installed on the top of the base plate 1. The function of the calf pad 16 is to raise the patient's calf so that the patient's heel is suspended in the air. A cavity is provided inside the base plate 1, and two front and rear guiding slide rails 2 are symmetrically installed at the bottom of the cavity. Extension plates 3 are slidably installed on the two slide rails 2. Racks 4 parallel to the slide rails 2 are installed on the tops of the two extension plates 3. A support structure is provided at the rear of the base plate 1. Two through holes for the extension plates 3 and the racks 4 to pass through are provided on the rear side wall of the cavity of the base plate 1. The rear ends of the two extension plates 3 pass through the through holes on the rear side of the base plate 1 and are fixed to the support structure. The position of the support structure can be adjusted by controlling the length of the extension plates 3 extending out of the base plate 1.

[0023] See also Figure 2 and Figure 3 The first rotating shaft 5 is rotatably installed between the left and right inner walls of the cavity of the base plate 1. The first rotating shaft 5 is close to the rear side of the base plate 1 and is perpendicular to the slide rail 2. Two gears 6 are installed on the first rotating shaft 5, and the two gears 6 are respectively meshed with the two racks 4. The bottom of the cavity of the base plate 1 is rotatably installed with a second rotating shaft 7 and a worm 10 through a bearing seat. The second rotating shaft 7 is perpendicular to the first rotating shaft 5, and the worm 10 is parallel to the first rotating shaft 5. A group of meshing bevel gears 8 are installed between the rear end of the second rotating shaft 7 and the first rotating shaft 5. A worm wheel 9 is installed on the second rotating shaft 7, and the worm wheel 9 is meshed with the worm 10. The left end of the main shaft of the worm 10 passes through the left side wall of the cavity of the base plate 1 and is equipped with a knob 18. By rotating the knob 18, the worm 10 can be driven to rotate. Then, through the cooperation of the worm wheel 9 and the worm 10 and the transmission of the bevel gear 8, the second rotating shaft 7 can drive the first rotating shaft 5 to rotate, and then through the meshing of the gear 6 and the rack 4, the extension plate 3 is controlled to move in translation.

[0024] See also Figure 2A first limiting rod 19 perpendicular to the slide rail 2 is installed between the two extension plates 3 and near the front end, and a second limiting rod 20 parallel to the first limiting rod 19 is installed at the bottom of the cavity of the base plate 1. The second limiting rod 20 is located between the first limiting rod 19 and the second rotating shaft 7. When the extension plate 3 moves backward to the maximum stroke, the first limiting rod 19 will abut against the second limiting rod 10, thereby preventing the extension plate 3 from moving backward again.

[0025] See also Figure 1 The support structure includes a U-shaped rod 11, a collar 13, a positioning pin 14 and a contact plate 15. The rear ends of the two extension plates 3 are fixedly mounted on the front side of the horizontal rod below the U-shaped rod 11. A vertical row of positioning holes 12 with equal spacing are respectively opened on the outward side of the left and right vertical rods of the U-shaped rod 11. A foot pad 17 is installed in front of the contact plate 15. The function of the contact plate 15 is to contact the patient's forefoot to prevent the patient's foot from everting or sagging. Collars 13 are installed on the left and right sides of the contact plate 15. The two collars 13 are respectively mounted on the left and right vertical rods of the U-shaped rod 11. A round through hole is provided on the side of the collar 13. The pin of the positioning pin 14 passes through the round through hole on the collar 13 and is inserted into the positioning hole 12. Please refer to Figure 4 A magnet 21 is embedded on the inner wall of the deepest part of the positioning hole 12. The pin of the positioning pin 14 is made of iron. After the pin of the positioning pin 14 is inserted into the positioning hole 12, the magnet 21 will attract the pin, thereby preventing the pin of the positioning pin 14 from falling out of the positioning hole 12 without external force pulling out the positioning pin 14. By allowing the pin of the positioning pin 14 to pass through the round hole on the collar 13 and cooperate with positioning holes 12 at different heights, the height of the contact plate 15 can be adjusted.

[0026] The working principle and usage process of the present invention are as follows: when using the heel support device for preventing heel pressure injuries, first turn the knob 18 forward to extend the extension plate 3 to the maximum stroke, then place the device on the bed with the rear side of the base plate 1 facing the end of the bed, place the patient's calf on the calf pad 16, so that the patient's heel is suspended in the air, and then reverse the knob 18 to move the support structure forward so that the contact plate 15 contacts the patient's forefoot, thereby preventing the patient's foot from everting or dropping.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A heel support device for preventing heel pressure injuries, comprising a base plate (1), characterized in that: The bottom plate (1) is provided with a cavity inside, and two front and rear guiding slide rails (2) are symmetrically installed at the bottom of the cavity, and an extension plate (3) is slidably installed on the two slide rails (2), and a rack (4) parallel to the slide rails (2) is installed on the top of the two extension plates (3). A first rotating shaft (5) is rotatably installed between the left and right inner walls of the cavity, and the first rotating shaft (5) is close to the rear side of the bottom plate (1) and perpendicular to the slide rails (2). Two gears (6) are installed on the first rotating shaft (5), and the two gears (6) are respectively engaged with the two racks (4); A second rotating shaft (7) and a worm (10) are rotatably mounted on the bottom of the cavity of the base plate (1) via a bearing seat. The second rotating shaft (7) is perpendicular to the first rotating shaft (5), and the worm (10) is parallel to the first rotating shaft (5). A set of meshing bevel gears (8) are mounted between the rear end of the second rotating shaft (7) and the first rotating shaft (5). A worm wheel (9) is mounted on the second rotating shaft (7), and the worm wheel (9) is meshed with the worm (10). A support structure is provided at the rear of the base plate (1); two through holes for the extension plate (3) and the rack (4) to pass through are provided on the rear side wall of the cavity of the base plate (1); the rear ends of the two extension plates (3) pass through the through holes at the rear side of the base plate (1) and are fixed to the support structure.

2. A heel support device for preventing heel pressure injuries according to claim 1, characterized in that: The support structure comprises a U-shaped rod (11), a collar (13), a positioning pin (14) and a contact plate (15). The rear ends of the two extension plates (3) are fixedly mounted on the front side of the lower crossbar of the U-shaped rod (11). A vertical row of positioning holes (12) with equal spacing are respectively opened on the outward side of the left and right vertical rods of the U-shaped rod (11). The left and right sides of the contact plate (15) are both equipped with collars (13). The two collars (13) are respectively mounted on the left and right vertical rods of the U-shaped rod (11). A round through hole is provided on the side of the collar (13). The pin of the positioning pin (14) passes through the round through hole on the collar (13) and is inserted into the positioning hole (12).

3. The heel support device for preventing heel pressure injuries according to claim 1, characterized in that: A calf pad (16) is installed on the top of the base plate (1).

4. The heel support device for preventing heel pressure injuries according to claim 1, characterized in that: The left end of the main shaft of the worm (10) passes through the left wall of the cavity of the base plate (1) and is equipped with a knob (18).

5. The heel support device for preventing heel pressure injuries according to claim 1, characterized in that: A first limiting rod (19) perpendicular to the slide rail (2) is installed between the two extension plates (3) and near the front end. A second limiting rod (20) parallel to the first limiting rod (19) is installed at the bottom of the cavity of the base plate (1). The second limiting rod (20) is located between the first limiting rod (19) and the second rotating shaft (7).

6. The heel support device for preventing heel pressure injuries according to claim 2, characterized in that: A foot pad (17) is installed in front of the contact plate (15).

7. The heel support device for preventing heel pressure injuries according to claim 2, characterized in that: A magnet (21) is embedded on the inner side wall at the deepest part of the positioning hole (12), and the pin of the positioning latch (14) is made of iron.

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