Plantar pressure detection device for diabetic patient

Abstract

The invention belongs to the technical field of foot pressure detection, and particularly relates to a diabetic plantar pressure detection device which comprises a bottom plate, the upper side wall of the bottom plate is fixedly connected with a detection seat and a controller, and the detection seat is of a hollow open structure. Before the pressure of the pelma of a diabetic patient is detected, the foot condition of the patient can be automatically detected, and when it is detected that an ulcer area exists on the foot of the patient, the detection assembly can be automatically controlled to go across the area, so that the situation that the ulcer area of the patient is extruded by the detection device, and the patient pains is avoided; the problems that the thin film pressure sensor is used for detecting the plantar pressure of a patient, healing tissue is damaged, and wound healing is delayed are solved, when the thin film pressure sensor is used for detecting the plantar pressure of the patient, the thin film pressure sensor can be completely attached to the plantar of the patient, and therefore the problem that the thin film pressure sensor is not attached to the plantar of the patient, and consequently the measuring result deviates is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of foot pressure detection, and in particular relates to a device for detecting the plantar pressure of diabetic patients. Background Art

[0002] Diabetic foot refers to distal lower limb nerve abnormalities and varying degrees of vascular lesions in patients after developing diabetes. Patients will experience symptoms such as ulcers, foot infections, and deep tissue damage. Early monitoring of diabetic foot is difficult for diabetic patients in their daily lives, resulting in treatment measures not being taken until the disease progresses to the late stage, missing the optimal treatment window. For example, patent publication number CN117017270B proposes a plantar pressure detection device for diabetic patients in the endocrinology department.

[0003] Existing plantar pressure tests for diabetic patients require them to step on a testing device with both feet, and then the plantar pressure is measured. If an ulcer appears on the plantar surface of the patient, the contact between the pressure sensor and the ulcer area during the test will irritate the wound, causing pain to the patient, and may even affect the smooth progress of the test due to the pain. In addition, squeezing and rubbing the ulcer area during the test may destroy the preliminary healing tissue that has already formed at the wound, affecting local blood circulation and delaying wound healing.

[0004] In addition, since the sole of the patient's foot is not flat, when the detection device uses a pressure sensor to detect the pressure of the patient's foot, the pressure sensor may not fit the patient's foot, which will lead to uneven pressure transmission, making the measurement results unable to truly reflect the actual pressure distribution of various parts of the foot, resulting in pressure data deviation.

[0005] Therefore, a device for detecting plantar pressure of diabetic patients is proposed to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a device for detecting plantar pressure of diabetic patients in order to solve the above problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solutions: a device for detecting plantar pressure of a diabetic patient, comprising a base plate, the upper side wall of which is fixedly connected to a detection seat and a controller, the detection seat being a hollow open structure, the inner wall of which is provided with a detection component, and further comprising:

[0008] a limiting component, disposed on the upper side wall of the detection seat, for determining the area of the patient's foot ulcer;

[0009] A membrane replacement component is provided on the outer wall of the detection seat to isolate the foot and the detection component to avoid cross infection of the patient;

[0010] The auxiliary component is arranged on the upper side wall of the base plate and can prevent the patient's foot from moving when the patient's foot is positioned by using the detection component.

[0011] Preferably, the detection component includes an air pump fixedly connected to the inner wall of the lower side of the detection seat, the air inlet end of the air pump extends out of the detection seat, the inner wall of the detection seat is fixedly connected to a support box, the air outlet end of the air pump is connected to the support box, the upper side wall of the support box is fixedly connected to multiple sealing cylinders, the sealing cylinder and the support box are fixedly connected to the same air inlet pipe, and an air inlet valve is provided in the air inlet pipe, the inner wall of the sealing cylinder is fixedly connected to a mesh plate, the upper side wall of the mesh plate is fixedly connected to a piston plate by a spring, the upper side wall of the piston plate is fixedly connected to a lifting rod, the upper end of the lifting rod is fixedly connected to the lifting seat, the upper side wall of the lifting seat is fixedly connected to a connecting plate through a bracket, the upper side wall of the connecting plate is fixedly connected to an airbag, the upper side wall of the airbag is fixedly connected to a rubber plate, the upper side wall of the rubber plate is fixedly connected to a thin film pressure sensor, and the thin film pressure sensor and the controller are electrically connected.

[0012] Preferably, the limiting assembly includes two screw linear modules, which are symmetrically fixedly connected to the left and right sides of the upper side of the detection seat, and the movable ends of the two screw linear modules are fixedly connected to the same translation frame, and the upper side wall of the translation frame is fixedly connected to multiple visual sensors, and the multiple visual sensors are electrically connected to the controller, and the movable ends of the two screw linear modules are fixedly connected to the same U-shaped frame, and the upper inner wall of the U-shaped frame is fixedly connected to multiple moving blocks, and the multiple moving blocks are electrically connected to the controller, and the lower side wall of the support box is fixedly connected to multiple fixed blocks, and the fixed blocks are electrically connected to the corresponding air intake valves.

[0013] Preferably, the film changing assembly includes two hydraulic cylinders fixedly connected to the front side wall of the detection seat, the movable ends of the two hydraulic cylinders are fixedly connected to the same mobile frame, the inner wall of the mobile frame is rotatably connected to the winding roller, the right side wall of the mobile frame is connected to the winding motor, the output end of the winding motor is connected to the winding roller, the rear side wall of the detection seat is fixedly connected to the fixed frame, the inner wall of the fixed frame is rotatably connected to the film roller, and the rear side wall of the fixed frame is connected to the positioning assembly.

[0014] Preferably, the positioning assembly includes a support frame fixedly connected to the rear side wall of the fixed frame, the rear side wall of the support frame is connected to an electric push rod, the movable end of the electric push rod is fixedly connected to an elastic rod, the end of the elastic rod away from the electric push rod is fixedly connected to a positioning plate, the side wall of the positioning plate is fixedly connected to a plurality of positioning pins, the end of the film roller close to the electric push rod extends out of the movable frame and is fixedly connected to a positioning seat, and the side wall of the positioning seat is provided with a plurality of positioning grooves that match the positioning pins.

[0015] Preferably, the auxiliary component includes multiple vertical rods fixedly connected to the side walls of the base plate, the upper ends of the multiple vertical rods are fixedly connected to the same supporting frame, the inner walls of the multiple vertical rods are fixedly connected to the same seat plate, the front side wall of the seat plate is fixedly connected to the vertical plate, the front side wall of the vertical plate is fixedly connected to two auxiliary rings, both of the two auxiliary rings are hollow structures, and the two auxiliary rings are connected to each other, the rear side wall of the vertical plate is fixedly connected to a pressure pump, the air outlet end of the pressure pump is connected to the right auxiliary ring, the inner wall of the auxiliary ring is provided with an air outlet, the inner wall of the auxiliary ring is fixedly connected to an expansion rubber ring covered on the outside of the air outlet, an air pressure sensor is provided in the air outlet end of the pressure pump, the side wall of the air outlet end of the pressure pump is fixedly connected to a pressure relief pipe, and a pressure relief valve is provided in the pressure relief pipe.

[0016] Preferably, the rear side wall of the support box is fixedly connected to an exhaust pipe, the rear end of the exhaust pipe extends out of the detection seat, and an exhaust valve is provided in the exhaust pipe.

[0017] Preferably, guide rollers are connected to the front and rear sides of the upper side wall of the detection seat, and the film on the surface of the film roller passes over the two guide rollers.

[0018] Compared with existing technologies, the advantages of a device for detecting plantar pressure of diabetic patients are:

[0019] 1. Through the set detection components and limit components, the condition of the patient's foot can be automatically detected before the pressure on the sole of the diabetic patient's foot is detected. When an ulcer area is detected on the patient's foot, the detection component can be automatically controlled to skip the area, thereby avoiding the detection device squeezing the patient's ulcer area, causing pain to the patient, and damaging the healing tissue, resulting in delayed wound healing.

[0020] 2. By setting up the lifting seat, connecting plate, airbag, rubber plate, and thin film pressure sensor, when using the thin film pressure sensor to detect the pressure on the patient's sole, the thin film pressure sensor and the patient's sole can be completely fitted together, thereby avoiding the problem that the thin film pressure sensor and the patient's sole do not fit together, which will cause deviation in the measurement results.

[0021] 3. By setting up a membrane replacement component, the sole of the patient's foot and the internal mechanism of the detection device can be separated before the detection device is used to detect the sole of the patient's foot, thereby avoiding the problem of cross-infection among patients and keeping the patient's foot in a suitable position, which is convenient for detecting the patient's foot ulcer condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of a device for detecting plantar pressure of diabetic patients provided by the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of a detection seat in a device for detecting plantar pressure of diabetic patients provided by the present invention;

[0024] Figure 3 This is a schematic diagram of the internal structure of a sealing cylinder in a device for detecting plantar pressure of diabetic patients provided by the present invention;

[0025] Figure 4 This is a schematic diagram of the positional relationship between a U-shaped frame and a moving block in a device for detecting plantar pressure of diabetic patients provided by the present invention;

[0026] Figure 5 This is a structural schematic diagram of a positioning component in a device for detecting plantar pressure of diabetic patients provided by the present invention;

[0027] Figure 6 This is a schematic structural diagram of a limit assembly in a device for detecting plantar pressure of a diabetic patient provided by the present invention;

[0028] Figure 7 This is a schematic diagram of the internal structure of an auxiliary ring in a device for detecting plantar pressure of diabetic patients provided by the present invention;

[0029] Figure 8 The present invention provides a schematic diagram of the surface structure of a movable frame in a device for detecting plantar pressure of diabetic patients.

[0030] In the figure: 1 bottom plate, 2 detection seat, 3 controller, 4 detection component, 401 air pump, 402 support box, 5 sealing cylinder, 6 air inlet pipe, 7 air inlet valve, 8 mesh plate, 9 piston plate, 10 lifting rod, 11 lifting seat, 12 connecting plate, 13 air bag, 14 rubber plate, 15 film pressure sensor, 16 limit assembly, 161 screw linear module, 162 translation frame, 17 visual sensor, 18 U-shaped frame, 19 moving block, 20 fixed block, 21 membrane replacement assembly, 211 hydraulic cylinder, 2 12 Moving frame, 22 Winding roller, 23 Winding motor, 24 Fixed frame, 25 Film roller, 26 Positioning assembly, 261 Support frame, 262 Electric push rod, 27 Elastic rod, 28 Positioning plate, 29 Positioning pin, 30 Positioning seat, 31 Auxiliary assembly, 311 Vertical rod, 312 Support frame, 32 Seat plate, 33 Vertical plate, 34 Auxiliary ring, 35 Pressure pump, 36 Expansion rubber ring, 37 Air pressure sensor, 38 Pressure relief pipe, 39 Pressure relief valve, 40 Exhaust pipe, 41 Exhaust valve, 42 Guide roller. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] like Figures 1-8 As shown, a plantar pressure detection device for diabetic patients includes a base plate 1, the upper side wall of the base plate 1 is fixedly connected to a detection seat 2 and a controller 3, the detection seat 2 is a hollow open structure, the inner wall of the detection seat 2 is provided with a detection component 4, the detection component 4 includes an air pump 401 fixedly connected to the inner wall of the lower side of the detection seat 2, the air inlet end of the air pump 401 extends out of the detection seat 2, the inner wall of the detection seat 2 is fixedly connected to a support box 402, the air outlet end of the air pump 401 is connected to the support box 402, the upper side wall of the support box 402 is fixedly connected to multiple sealing cylinders 5, the sealing cylinder 5 and the support box 402 are fixedly connected with the same air inlet pipe 6, and the air inlet pipe 6 is fixedly connected to the support box 402. An air inlet valve 7 is provided in the tube 6. A mesh plate 8 is fixedly connected to the inner wall of the sealing cylinder 5. The upper side wall of the mesh plate 8 is fixedly connected to a piston plate 9 via a spring. The upper side wall of the piston plate 9 is fixedly connected to a lifting rod 10. The upper end of the lifting rod 10 is fixedly connected to a lifting seat 11. The upper side wall of the lifting seat 11 is fixedly connected to a connecting plate 12 via a bracket. The upper side wall of the connecting plate 12 is fixedly connected to an airbag 13. The upper side wall of the airbag 13 is fixedly connected to a rubber plate 14. The upper side wall of the rubber plate 14 is fixedly connected to a thin film pressure sensor 15. The thin film pressure sensor 15 is electrically connected to the controller 3 and can detect the pressure on the patient's foot. The system also includes:

[0033] The limiting component 16 is arranged on the upper side wall of the detection seat 2 and is used to determine the area of the patient's foot ulcer. The limiting component 16 includes two screw linear modules 161. The two screw linear modules 161 are symmetrically fixedly connected to the left and right sides of the upper side of the detection seat 2. The moving ends of the two screw linear modules 161 are fixedly connected to the same translation frame 162. The upper side wall of the translation frame 162 is fixedly connected to multiple visual sensors 17. The multiple visual sensors 17 are all electrically connected to the controller 3. The moving ends of the two screw linear modules 161 are fixedly connected to The same U-shaped frame 18 has a plurality of movable blocks 19 fixedly connected to the upper inner wall of the U-shaped frame 18, and the plurality of movable blocks 19 are electrically connected to the controller 3. The lower side wall of the support box 402 has a plurality of fixed blocks 20 fixedly connected to the fixed blocks 20, and the fixed blocks 20 are electrically connected to the corresponding air inlet valves 7. When an ulcer area on the patient's foot is detected, the detection component 4 can be automatically controlled to skip the area, thereby avoiding the detection device squeezing the patient's ulcer area, causing pain to the patient, and damaging the healing tissue, resulting in delayed wound healing.

[0034] The membrane replacement component 21 is arranged on the outer wall of the detection seat 2, and is used to isolate the foot and the detection component 4 to avoid cross infection of patients. The membrane replacement component 21 includes two hydraulic cylinders 211 fixedly connected to the front side wall of the detection seat 2, and the moving ends of the two hydraulic cylinders 211 are fixedly connected to the same mobile frame 212. The inner wall of the mobile frame 212 is rotatably connected to the winding roller 22, and the right side wall of the mobile frame 212 is connected to the winding motor 23. The output end of the winding motor 23 is connected to the winding roller 22. The rear side wall of the detection seat 2 is fixedly connected to the fixed frame 24, and the inner wall of the fixed frame 24 is rotatably connected to the film roller 25. The rear side wall of the fixed frame 24 is connected to the positioning component 26. Before using the detection device to detect the sole of the patient's foot, the sole of the patient's foot and the internal mechanism of the detection device can be separated, thereby avoiding the problem of cross infection of the patient, and the patient's foot can be kept in a suitable position, which is convenient for detecting the patient's foot ulcer condition;

[0035] The auxiliary component 31 is arranged on the upper side wall of the base plate 1, and can prevent the patient's foot from moving when the detection component 4 is used to position the patient's foot. The auxiliary component 31 includes multiple vertical rods 311 fixedly connected to the upper side wall of the base plate 1, the upper ends of the multiple vertical rods 311 are fixedly connected to the same support frame 312, the inner walls of the multiple vertical rods 311 are fixedly connected to the same seat plate 32, the front side wall of the seat plate 32 is fixedly connected to the vertical plate 33, and the front side wall of the vertical plate 33 is fixedly connected to two auxiliary rings 34, both of which are hollow structures, and the two auxiliary rings 34 are fixedly connected to the upper side wall of the base plate 1. The rings 34 are interconnected, and a pressure pump 35 is fixedly connected to the rear side wall of the vertical plate 33. The air outlet of the pressure pump 35 is connected to the auxiliary ring 34 on the right side. An air outlet is provided on the inner wall of the auxiliary ring 34. An expansion rubber ring 36 is fixedly connected to the inner wall of the auxiliary ring 34 and is covered on the outside of the air outlet. An air pressure sensor 37 is provided in the air outlet of the pressure pump 35. A pressure relief pipe 38 is fixedly connected to the side wall of the air outlet of the pressure pump 35, and a pressure relief valve 39 is provided in the pressure relief pipe 38, which can fix the patient's foot to prevent the foot from moving during the detection process and affecting the detection accuracy.

[0036] The positioning assembly 26 includes a support frame 261 fixedly connected to the rear side wall of the fixed frame 24, the rear side wall of the support frame 261 is connected to an electric push rod 262, the movable end of the electric push rod 262 is fixedly connected to an elastic rod 27, the end of the elastic rod 27 away from the electric push rod 262 is fixedly connected to a positioning plate 28, the side wall of the positioning plate 28 is fixedly connected to a plurality of positioning pins 29, the end of the film roller 25 close to the electric push rod 262 extends out of the movable frame 212 and is fixedly connected to a positioning seat 30, the side wall of the positioning seat 30 is provided with a plurality of positioning grooves that match the positioning pins 29, which can fix the position of the film roller 25.

[0037] The rear side wall of the support box 402 is fixedly connected to an exhaust pipe 40 , the rear end of the exhaust pipe 40 extends out of the detection seat 2 , and an exhaust valve 41 is provided in the exhaust pipe 40 to discharge the gas inside the support box 402 .

[0038] Guide rollers 42 are connected to the front and rear sides of the upper side wall of the detection base 2. The film on the surface of the film roller 25 passes over the two guide rollers 42, which can guide the moving path of the film.

[0039] The operating principle of the present invention is now explained as follows: before using the detection device, the doctor needs to send an electrical signal to the controller 3 through the external remote control switch. After receiving the electrical signal, the controller 3 will control the electric push rod 262 to work. The electric push rod 262 drives the positioning plate 28 and the positioning pin 29 to move toward the positioning seat 30 through the elastic rod 27, so that the positioning pin 29 is inserted into the positioning groove on the surface of the positioning seat 30. When the positioning pin 29 is not inserted into the positioning groove, in the subsequent process of the film roller 25 driving the positioning seat 30 to rotate, under the action of the elastic force of the elastic rod 27 , the positioning pin 29 will still be inserted into the positioning slot, and then the controller 3 will control the two hydraulic cylinders 211 to work, and the hydraulic cylinder 211 will drive the movable frame 212 and the winding roller 22 to move forward to the set position (because the winding motor 23 is a brake motor, the winding roller 22 can be limited when it is not powered, and when the film needs to be wound up later, the controller 3 only needs to control the winding motor 23 to work for a certain time to wind up the film stepped on by the patient to prevent cross infection), and use the winding roller 22 to tighten the film (the film can be a polyethylene film);

[0040] Then the patient sits on the seat 32 according to the doctor's instructions, and inserts the patient's feet into the two auxiliary rings 34. The auxiliary rings 34 are large in size, so that the patient's feet and calves can pass through them. In this process, the patient needs to pass the trouser legs through the auxiliary rings 34 to avoid direct contact between the skin and the auxiliary rings 34, which may easily cause cross infection. Then the patient takes off his shoes and socks (after the test is completed, he also needs to put on shoes and socks first, and then pull the feet out of the auxiliary rings 34), so that the soles of the feet step on the film. Then the doctor sends an electrical signal to the controller 3 through the remote control device, and the controller 3 will control the pressure pump 35 to work. The pressure pump 35 sends external gas to the two auxiliary rings 34 and inflates the expandable rubber ring 36. After expansion, the expandable rubber ring 36 will restrain the patient's calves. After the air pressure sensor 37 detects that the air pressure inside the auxiliary ring 34 reaches the set threshold (0.5-0.8 standard atmospheric pressure), the pressure sensor 37 detects that the air pressure inside the auxiliary ring 34 reaches the set threshold (0.5-0.8 standard atmospheric pressure). ) to prevent the patient's calf and foot from moving during the detection process. Since the film is in a tight state at this time, the patient's foot will be suspended above the detection seat 2. When the pressure pump 35 stops working, the controller 3 will control the two screw linear modules 161 to work. The two screw linear modules 161 will drive the translation frame 162 and the U-shaped frame 18 to move together. During the movement of the translation frame 162, the patient's sole will be detected through multiple visual sensors 17 (the film is a transparent structure), and during the movement of the U-shaped frame 18, it will drive multiple moving blocks 19 to move together, and the moving blocks 19 will contact multiple fixed blocks 20 during the movement. When an ulcer area is detected on the patient's foot, the corresponding visual sensor 17 will transmit an electrical signal to the controller 3. After receiving the electrical signal, the controller 3 will control the air inlet valve 7 below the ulcer area through the corresponding moving block 19 and fixed block 20 to close;

[0041] When the screw linear module 161 moves to the designated position to the rear side, the controller 3 will control the air pump 401 to work, and the air pump 401 will transport the external gas into the support box 402 and enter the sealing tube 5 through the support box 402. Under the action of air pressure, the piston plate 9 will drive the lifting rod 10 to move upward, and the lifting rod 10 will drive the lifting seat 11, the connecting plate 12, the air bag 13, the rubber plate 14, and the film pressure sensor 15 to move upward together (the air inlet valve 7 below the ulcer area is in a closed state, so the lifting rod 10 below the ulcer area will not move). In the process of moving upward, the sensor 15 will gradually come into contact with the sole of the patient's foot. When the controller 3 detects that one of the film pressure sensors 15 is in contact with the patient's foot, the controller 3 will control the electric push rod 262 to drive the positioning plate 28 and the positioning pin 29 to separate from the positioning seat 30, thereby releasing the limit on the film roller 25. The film under the patient's foot will become loose, avoiding the taut film from affecting the positioning of the lifting rod 10. Under the action of the airbag 13 and the rubber plate 14, the film pressure sensor 15 will fit with the sole of the patient's foot to ensure measurement contact. After the sensor 15 contacts the patient's foot, it stops moving. When the squeezing force between the film pressure sensor 15 and the patient's foot reaches 5N, the film pressure sensor 15 controls the air inlet valve 7 below to close through the controller 3, so that the lifting rod 10 stops moving. Through multiple lifting rods 10, the sole of the patient's foot can be shaped. When the controller 3 detects that the air pressure inside the support box 402 reaches the set threshold (1 standard atmospheric pressure) through the pressure component (not shown in the figure) inside the support box 402, the controller 3 controls the air pump 401 to stop working. The air outlet of the pressure pump 35 is provided with a one-way valve to prevent gas backflow, and the controller 3 will remind the doctor and the patient through the buzzer module on the inner wall. The doctor can then let the patient stand up and step on multiple thin film pressure sensors 15. Since the area below the piston plate 9 is in a closed state at this time, the air pressure can be used to support the patient. The pressure of the patient's feet can be detected by multiple thin film pressure sensors 15, and the thin film pressure sensor 15 will transmit the detection results to the receiving end through the controller 3, and the doctor can analyze the patient's foot pressure data through the receiving end.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A plantar pressure detection device for diabetic patients, comprising a base plate (1), wherein the upper side wall of the base plate (1) is fixedly connected to a detection seat (2) and a controller (3), wherein the detection seat (2) is a hollow open structure, and the inner wall of the detection seat (2) is provided with a detection component (4), characterized in that: Also includes: a limiting component (16), arranged on the upper side wall of the detection seat (2), for determining the area of the patient's foot ulcer; A membrane replacement component (21) is arranged on the outer wall of the detection seat (2) and is used to isolate the foot and the detection component (4) to avoid cross infection of patients; The auxiliary component (31) is arranged on the upper side wall of the base plate (1) and can prevent the patient's foot from moving when the patient's foot is positioned using the detection component (4).

2. The device for detecting plantar pressure of a diabetic patient according to claim 1, characterized in that: The detection assembly (4) includes an air pump (401) fixedly connected to the inner wall of the lower side of the detection seat (2), the air inlet end of the air pump (401) extends out of the detection seat (2), the inner wall of the detection seat (2) is fixedly connected to a support box (402), the air outlet end of the air pump (401) is connected to the support box (402), the upper side wall of the support box (402) is fixedly connected to multiple sealing cylinders (5), the sealing cylinder (5) and the support box (402) are fixedly connected to the same air inlet pipe (6), and the air inlet pipe (6) is provided with an air inlet valve (7), the inner wall of the sealing cylinder (5) is fixedly connected to a mesh plate (8), the The upper side wall of the mesh plate (8) is fixedly connected to a piston plate (9) via a spring, the upper side wall of the piston plate (9) is fixedly connected to a lifting rod (10), the upper end of the lifting rod (10) is fixedly connected to a lifting seat (11), the upper side wall of the lifting seat (11) is fixedly connected to a connecting plate (12) via a bracket, the upper side wall of the connecting plate (12) is fixedly connected to an airbag (13), the upper side wall of the airbag (13) is fixedly connected to a rubber plate (14), the upper side wall of the rubber plate (14) is fixedly connected to a thin film pressure sensor (15), and the thin film pressure sensor (15) is electrically connected to the controller (3).

3. The device for detecting plantar pressure of a diabetic patient according to claim 2, characterized in that: The limiting assembly (16) includes two screw linear modules (161), the two screw linear modules (161) are symmetrically fixedly connected to the left and right sides of the upper side of the detection seat (2), the movable ends of the two screw linear modules (161) are fixedly connected to the same translation frame (162), the upper side wall of the translation frame (162) is fixedly connected to a plurality of visual sensors (17), and the plurality of visual sensors (17) are all electrically connected to the controller (3), the movable ends of the two screw linear modules (161) are fixedly connected to the same U-shaped frame (18), the upper inner wall of the U-shaped frame (18) is fixedly connected to a plurality of moving blocks (19), and the plurality of moving blocks (19) are all electrically connected to the controller (3), and the lower side wall of the support box (402) is fixedly connected to a plurality of fixed blocks (20), and the fixed blocks (20) are electrically connected to the corresponding intake valves (7).

4. The device for detecting plantar pressure of a diabetic patient according to claim 1, characterized in that: The film changing assembly (21) comprises two hydraulic cylinders (211) fixedly connected to the front side wall of the detection seat (2); the movable ends of the two hydraulic cylinders (211) are fixedly connected to the same movable frame (212); the inner wall of the movable frame (212) is rotatably connected to a winding roller (22); the right side wall of the movable frame (212) is connected to a winding motor (23); the output end of the winding motor (23) is connected to the winding roller (22); the rear side wall of the detection seat (2) is fixedly connected to a fixed frame (24); the inner wall of the fixed frame (24) is rotatably connected to a film roller (25); and the rear side wall of the fixed frame (24) is connected to a positioning assembly (26).

5. The device for detecting plantar pressure of a diabetic patient according to claim 4, characterized in that: The positioning assembly (26) includes a support frame (261) fixedly connected to the rear side wall of the fixed frame (24); the rear side wall of the support frame (261) is connected to an electric push rod (262); the movable end of the electric push rod (262) is fixedly connected to an elastic rod (27); the end of the elastic rod (27) away from the electric push rod (262) is fixedly connected to a positioning plate (28); the side wall of the positioning plate (28) is fixedly connected to a plurality of positioning pins (29); the end of the film roller (25) close to the electric push rod (262) extends out of the movable frame (212) and is fixedly connected to a positioning seat (30); the side wall of the positioning seat (30) is provided with a plurality of positioning grooves that match the positioning pins (29).

6. The device for detecting plantar pressure of a diabetic patient according to claim 1, characterized in that: The auxiliary component (31) includes a plurality of vertical rods (311) fixedly connected to the upper side wall of the bottom plate (1), the upper ends of the plurality of vertical rods (311) are fixedly connected to the same supporting frame (312), the inner walls of the plurality of vertical rods (311) are fixedly connected to the same seat plate (32), the front side wall of the seat plate (32) is fixedly connected to a vertical plate (33), the front side wall of the vertical plate (33) is fixedly connected to two auxiliary rings (34), both of the two auxiliary rings (34) are hollow structures, and the two auxiliary rings (34) are connected to each other. The rear side wall of the vertical plate (33) is fixedly connected to a pressure pump (35), the air outlet of the pressure pump (35) is communicated with the right auxiliary ring (34), the inner wall of the auxiliary ring (34) is provided with an air outlet, the inner wall of the auxiliary ring (34) is fixedly connected to an expansion rubber ring (36) which is covered on the outside of the air outlet, the air outlet of the pressure pump (35) is provided with an air pressure sensor (37), the side wall of the air outlet of the pressure pump (35) is fixedly connected to a pressure relief pipe (38), and the pressure relief pipe (38) is provided with a pressure relief valve (39).

7. The device for detecting plantar pressure of a diabetic patient according to claim 2, characterized in that: The rear side wall of the support box (402) is fixedly connected to an exhaust pipe (40), the rear end of the exhaust pipe (40) extends out of the detection seat (2), and an exhaust valve (41) is provided in the exhaust pipe (40).

8. The device for detecting plantar pressure of a diabetic patient according to claim 4, characterized in that: Guide rollers (42) are connected to the front and rear sides of the upper side wall of the detection seat (2), and the film on the surface of the film roller (25) passes over the two guide rollers (42).

Images