Post-amputation nursing device for diabetic foot

Abstract

The invention discloses a post-amputation nursing device for diabetic feet. The post-amputation nursing device comprises a base, an arc-shaped supporting plate and a supporting soft cushion. The arc-shaped supporting plates are placed in arc-shaped containing grooves of the base, the left arc-shaped supporting plate and the right arc-shaped supporting plate are hollow arc-shaped supporting plates, a plurality of adjusting air cylinders are evenly distributed in grooves in the upper surfaces of the arc-shaped supporting plates, and the supporting soft cushion is placed on the arc-shaped supporting plates and composed of a plurality of air cushion units. The front side, close to the bottom, of the base extends forwards to form a sliding table, and a nursing mechanism is arranged on the sliding table. The post-amputation nursing device for the diabetic foot is placed below a post-amputation limb, the post-amputation limb of the diabetic foot is clamped under the condition that the post-amputation limb is evenly stressed through the mutual synergistic effect of the supporting plate driving air cylinder, the adjusting air cylinder, the air pump, the pneumatic electromagnetic valve and the gas electromagnetic distribution valve, and then the end of the post-amputation limb is effectively heightened; the wound surface is prevented from being contacted with the bed surface after the amputation of the urine foot, so that the injury caused by compression or friction is avoided.

Description

Technical Field

[0001] This invention relates to the field of diabetes care technology, and more particularly to a post-amputation care device for diabetic foot. Background Technology

[0002] In diabetic foot patients, amputation is necessary to save their lives when extensive gangrene (affecting more than 50% of the foot), deep infections that threaten life (such as gas gangrene), severe ischemia complicated by uncontrollable infection or sepsis.

[0003] Postoperative care for diabetic foot amputations should focus on wound healing and infection prevention. Nursing measures include standardized dressing changes, blood glucose monitoring, and prevention of complications such as pressure sores and thrombosis.

[0004] Postoperative wound care for diabetic foot amputation: 1. Keep the wound clean and dry: Observe the wound dressing daily for any seepage or bleeding. Medical staff should change the dressing according to regulations. Avoid self-treatment. 2. Avoid pressure or friction: Use a pressure-relieving mattress or brace to protect the residual limb and avoid prolonged pressure that could cause skin damage. 3. Promote healing: If the wound is not healing well, growth factors or negative pressure drainage techniques should be used as prescribed by the doctor. If signs of infection such as redness, swelling, seepage, or odor appear, seek medical attention promptly.

[0005] Patients undergoing diabetic foot amputation face risks such as wound infection, residual limb edema, and the risk of secondary amputation. Traditional nursing care relies on manual intervention, resulting in low efficiency and inconsistent care. Especially after surgery, the fresh wound is sensitive to pressure, necessitating a tool to cushion the wound and reduce friction and pressure. Currently, medical staff or family members often place a pillow under the amputated limb to suspend it. However, this limb can move relative to the pillow, potentially causing contact between the wound and the bed or pillow, leading to friction and pressure, secondary injury, and hindering wound healing. Summary of the Invention

[0006] In view of the above-mentioned shortcomings in the prior art, the present invention provides a post-amputation care device for diabetic foot. This device elevates the wound surface of the diabetic foot amputation, which can completely avoid friction and pressure on the wound surface, and can also effectively care for the wound surface of the diabetic foot amputation.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A post-amputation care device for diabetic foot includes a base, an arc-shaped support plate, and a support pad. The upper part of the base has an arc-shaped placement groove along the front-to-back direction. The arc-shaped support plate includes a left arc-shaped support plate and a right arc-shaped support plate, which are placed within the arc-shaped placement groove of the base. The left and right arc-shaped support plates are hinged together. Cylinder mounting grooves are provided near the left and right sides of the arc-shaped placement groove of the base. Each cylinder mounting groove houses a support plate drive cylinder. The bottom of the cylinder seat of the support plate drive cylinder is hinged to the bottom of the cylinder mounting groove. The piston rod of the left support plate drive cylinder is hinged to the corresponding part of the bottom surface of the left arc-shaped support plate, and the piston rod of the right support plate drive cylinder is hinged to the corresponding part of the bottom surface of the right arc-shaped support plate.

[0009] Both the left and right arc-shaped support plates are hollow arc-shaped support plates. Multiple adjusting cylinders are evenly distributed within the grooves on the upper surfaces of the left and right arc-shaped support plates. The supporting cushion is placed on the arc-shaped support plates. The supporting cushion is composed of multiple air cushion units, each with an air inlet hose at its bottom. The upper surfaces of both the left and right arc-shaped support plates are equipped with air nozzle connectors corresponding to the air inlet hoses at the bottom of the supporting cushion. Each air inlet hose is connected to the corresponding air nozzle connector, and each air nozzle connector receives air from the corresponding side. Each gas outlet on the corresponding pneumatic solenoid valve is connected to the secondary branch of the air pipe. The secondary branch of the air pipe on the left and the pneumatic solenoid valve on the left are both located in the inner cavity of the left arc-shaped support plate. The secondary branch of the air pipe on the right and the pneumatic solenoid valve on the right are both located in the inner cavity of the right arc-shaped support plate. The pneumatic solenoid valves on both sides are connected to the two gas outlets of the gas electromagnetic distribution valve through the primary branch of the air pipe. The gas electromagnetic distribution valve is connected to the air pump through the main air pipe. The primary branch of the air pipe, the gas electromagnetic distribution valve and the air pump are all installed in the cavity inside the base.

[0010] The front side of the base extends forward near the bottom to form a slide, on which a nursing mechanism for caring for the end of a diabetic foot amputation is provided.

[0011] In a preferred embodiment of the present invention, the nursing mechanism includes a nursing enclosure, a nursing drive plate, a telescopic sleeve, and a nursing clamp. The nursing drive plate, telescopic sleeve, and nursing clamp are all located within the nursing enclosure, arranged sequentially from front to back. The nursing enclosure and nursing drive plate are both positioned above a sliding table and slide in a forward-backward direction with the base. The front end of the telescopic sleeve is fixedly connected to the nursing drive plate, and the rear end of the telescopic sleeve is fixedly connected to the nursing clamp. A cavity is provided in the middle of the nursing clamp, and a nursing pad corresponding to the end of the diabetic foot amputation is provided in the cavity. The nursing pad includes an elastic membrane and an elastic mesh bag. The elastic mesh bag is located on the front side of the elastic membrane, and multiple drainage holes with breathable and drainage functions are evenly distributed on the elastic membrane. The elastic mesh bag is filled with absorbent cotton. Multiple pushing cylinders for pushing the nursing pad are evenly distributed on the rear side of the nursing drive plate, and the piston rod of the pushing cylinder corresponds to the elastic mesh bag.

[0012] As a preferred embodiment of the present invention, the nursing mechanism further includes a pressure plate disposed within the nursing enclosure. The pressure plate is a hollow frame pressure plate disposed on the rear side of the nursing clamp. Two-stage telescopic cylinders are respectively disposed at the four corners of the rear side of the nursing drive plate. Through holes are provided near the four corners of the nursing clamp. The four two-stage telescopic cylinders are located within the telescopic sleeve. The first-stage piston rod of the two-stage telescopic cylinder passes through the corresponding through hole on the nursing clamp and is fixedly engaged with the corresponding through hole. The second-stage piston rod of the two-stage telescopic cylinder is fixedly connected to the front side of the pressure plate.

[0013] As an improvement of the present invention, the nursing splint is composed of two front and rear frame splints, and the nursing pad is sandwiched between the two front and rear frame splints.

[0014] As an improvement of the present invention, a plurality of pressure sensors, temperature sensors and humidity sensors are provided on the rear surface of the elastic membrane.

[0015] As an improvement of the present invention, the nursing panel is composed of a bottom panel and a left panel, a right panel and a front panel disposed on the bottom panel. A horizontal sliding groove I is provided near the front side of the base. The rear side of the bottom panel is inserted into the horizontal sliding groove I and slides in cooperation with the horizontal sliding groove I. A cylinder I is provided in the base. The piston rod of the cylinder I extends horizontally forward into the horizontal sliding groove I and is fixedly connected to the rear end of the bottom panel. The nursing panel is driven by the cylinder I to slide back and forth on the slide table.

[0016] As an improvement of the present invention, the nursing drive plate includes a bottom slide plate and a nursing push plate disposed on the bottom slide plate near the front side. The base is disposed near the front side and above the horizontal slide groove I, and a horizontal slide groove II is disposed thereon. The rear side of the bottom slide plate is inserted into the horizontal slide groove II and slides in cooperation with the horizontal slide groove II. A cylinder II is disposed inside the base and above the cylinder I. The piston rod of the cylinder II extends horizontally forward into the horizontal slide groove II and is fixedly connected to the rear end of the bottom slide plate. The nursing drive plate is driven by the cylinder II to slide back and forth on the horizontal slide groove II.

[0017] As an improvement of the present invention, a boss is provided on the rear side of the nursing push plate near the center, and all the pushing cylinders are evenly distributed on the rear side of the boss, with the four two-stage telescopic cylinders located on the outer side of the boss.

[0018] As an improvement of the present invention, at least two restraint straps are provided on the top left side of the base in the front-back direction. One end of the restraint strap is connected to the top left side of the base, and the other end of the restraint strap can be connected to a restraint strap length adjustment mechanism provided on the top right side of the base. The restraint strap length adjustment mechanism includes a rectangular sliding sleeve, a motor, and a gear. The rectangular sliding sleeve is located on the top right side of the base, with an open top. The motor is located on the top right side of the base and on one side of the rectangular sliding sleeve. The power output shaft of the motor extends into the rectangular sliding sleeve. The gear is mounted on the power output shaft of the motor extending into the rectangular sliding sleeve. A restraint strap insertion hole is formed between the gear and the inner sidewall of the rectangular sliding sleeve. After the other end of the restraint strap is inserted into the restraint strap insertion hole, the gear driven by the motor drives the restraint strap to slide within the rectangular sliding sleeve.

[0019] As an improvement of the present invention, multiple pressure sensors are evenly distributed on the bottom surface of the slide table, and multiple pressure sensors are evenly distributed on the inner side of the restraint strap; the pressure sensors on the air cushion unit, the pressure sensors on the bottom surface of the slide table, the pressure sensors on the inner side of the restraint strap, and the pressure sensors, temperature sensors, and humidity sensors on the rear side of the elastic membrane are all connected to the controller; the support plate drive cylinder, gas electromagnetic distribution valve, air pump, cylinder I, cylinder II, adjusting cylinder, pneumatic solenoid valve, motor, and two-stage telescopic cylinder are all connected to the controller.

[0020] Compared with the prior art, the technical advantages of the present invention are:

[0021] 1. The diabetic foot amputation care device is placed under the patient's diabetic foot amputated limb (hereinafter referred to as the stump). Through the coordinated action of the support plate driving cylinder, adjusting cylinder, air pump, pneumatic solenoid valve and gas solenoid distribution valve, the diabetic foot amputated limb is clamped under uniform force and fixed on the diabetic foot amputation care device. This effectively elevates the end of the diabetic foot amputation limb, preventing the end of the diabetic foot amputation limb from contacting the bed surface, thereby avoiding injury to the end of the diabetic foot amputation limb due to friction and compression.

[0022] 2. Through the coordinated action of the support plate driving cylinder, adjusting cylinder, air pump, pneumatic solenoid valve and gas solenoid distribution valve, it can support and fix limbs of different sizes after amputation. Therefore, it is suitable for patients with diabetic foot amputation of different body types. This diabetic foot amputation care device can avoid pressure or friction on the residual limb after amputation of diabetic foot of different body types.

[0023] 3. The amputated limb is wrapped with a restraint strap and supporting padding to secure it to the post-amputation care device, preventing it from detaching and effectively protecting the limb. If the patient forcibly removes the amputated limb from the device, the pressure sensor inside the restraint strap or on the surface of the air cushion unit will momentarily increase or decrease. If the change exceeds a preset value, the controller will activate the connected alarm or send a notification to medical staff or the patient via Bluetooth.

[0024] 4. When fluid flows down the amputated end of the diabetic foot, it flows through the drainage holes into the elastic mesh bag and is absorbed by the absorbent cotton, thus keeping the amputated end of the diabetic foot as dry as possible. Extending the piston rod of the cylinder drives the elastic mesh bag and elastic membrane to move backward and close to the amputated end of the diabetic foot, thereby contacting the wound repair dressing and applying slight pressure to the periphery of the wound repair dressing to prevent the wound repair dressing from not adhering properly or from falling off due to fluid seepage.

[0025] 5. Multiple pressure sensors, temperature sensors, and humidity sensors are installed on the rear surface of the elastic membrane, all of which are connected to the controller. The controller can adjust the pushing cylinder on the rear side of the boss; the temperature sensor on the rear surface of the elastic membrane can collect the temperature of the end of the diabetic foot after amputation, and this temperature signal is fed back to the controller. When the temperature is greater than a preset value, it can be determined whether there is a risk of infection at the end of the diabetic foot after amputation. The humidity sensor on the rear surface of the elastic membrane can collect the amount of exudate at the end of the diabetic foot after amputation, and the collected humidity signal can be input into the controller, which automatically determines whether it is necessary to clean and care for the end of the diabetic foot after amputation and change the wound repair dressing. This care device greatly promotes wound healing and prevents infection.

[0026] 6. For cases involving significant exudate at the limb extremities immediately following diabetic foot amputation, where wound repair dressings require frequent replacement due to the large amount of exudate, a pressure plate can be used. The controller extends the second-stage piston rod of a two-stage telescopic cylinder backward, placing the wound repair dressing between the nursing splint and the pressure plate. Then, the second-stage piston rod retracts forward, clamping the wound repair dressing between the nursing splint and the pressure plate. The patient places the amputated limb on a support pad, with the end of the limb close to the wound repair dressing clamped between the nursing splint and the pressure plate. The controller then controls cylinder II, whose piston rod moves the nursing drive plate backward, thereby moving the nursing splint, the pressure plate, and the wound repair dressing clamped between them backward, ensuring the wound repair dressing adheres to the end of the amputated limb for end-of-limb care. Attached Figure Description

[0027] Figure 1 A schematic diagram of the structure of a diabetic foot amputation care device before use;

[0028] Figure 2 This is a schematic diagram of the structure of a diabetic foot amputation care device in use.

[0029] Figure 3 This is a schematic diagram of the base structure;

[0030] Figure 4 This is a cross-sectional view of the base;

[0031] Figure 5 A schematic diagram of cylinder I and cylinder II installed in the base;

[0032] Figure 6 A schematic diagram of a structure in which an arc-shaped support plate is placed in an arc-shaped placement groove in the base;

[0033] Figure 7A schematic diagram showing the structure of the base, the curved support plate, and the supporting pad.

[0034] Figure 8 for Figure 7 A magnified structural diagram of point A in the middle;

[0035] Figure 9 This is a schematic diagram of the restraint strap length adjustment mechanism;

[0036] Figure 10 A schematic diagram showing the structure of the nursing drive plate, telescopic sleeve, nursing clamp, and pressure plate.

[0037] Figure 11 This is a structural diagram of the nursing care panel;

[0038] Figure 12 This is a schematic diagram of the nursing drive board.

[0039] Figure 13 A schematic diagram of a push cylinder and a two-stage telescopic cylinder set on the nursing drive plate;

[0040] Figure 14 This is a schematic diagram of the telescopic sleeve.

[0041] Figure 15 This is a schematic diagram of the structure of the nursing splint;

[0042] Figure 16 A schematic diagram of a structure for placing a nursing pad inside a nursing splint;

[0043] Figure 17 This is a cross-sectional view of the nursing pad;

[0044] Figure 18 This is a schematic diagram of the pressure plate structure;

[0045] Figure 19 This is a control flowchart for a diabetic foot amputation care device.

[0046] In the diagram: 1—Base; 11—Arc-shaped placement groove; 12—Cylinder mounting groove; 13—Support plate drive cylinder; 14—One branch of the air pipe; 15—Gas solenoid distribution valve; 16—Air pump; 17—Slide table; 18—Horizontal slide groove I; 19—Cylinder I; 110—Horizontal slide groove II; 111—Cylinder II; 112—Cavity; 2—Arc-shaped support plate; 21—Left arc-shaped support plate; 22—Right arc-shaped support plate; 23—Adjusting cylinder; 24—Air nozzle connector; 25—Secondary branch of the air pipe; 26—Pneumatic solenoid valve; 3—Support cushion; 31—Air cushion unit; 32—Inlet hose; 4—Nursing mechanism; 41—Nursing enclosure; 411—Bottom enclosure; 412—Left enclosure; 413—Right enclosure; 414—Front enclosure; 42—Nursing drive plate; 421—Push cylinder; 422—Two-stage telescopic cylinder; 423—Bottom slide plate; 424—Nursing push plate; 425—Boss; 43—Telescopic sleeve; 44—Nursing clamp; 441—Cavity; 442—Nursing pad; 4421—Elastic membrane; 4422—Elastic mesh bag; 4423—Drainage hole; 4424—Absorbent cotton; 443—Through hole; 444—Front frame clamp; 445—Rear frame clamp; 45—Pressure plate; 5—Binding strap; 6—Binding strap length adjustment mechanism; 61—Rectangular sliding sleeve; 62—Motor; 63—Gear; 64—Binding strap insertion hole. Detailed Implementation

[0047] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0048] like Figure 1-2 As shown, a post-amputation care device for diabetic foot includes a base 1, an arc-shaped support plate 2, a support pad 3, a care mechanism 4, a restraint strap 5, and a restraint strap length adjustment mechanism 6.

[0049] The base 1 has an arc-shaped placement groove 11 on its upper part along the front-to-back direction, and a sliding platform 17 extends forward from the front side of the base 1 near the bottom. Figure 3 As shown. A cavity 112 is provided inside the base 1, as... Figure 4 As shown, a horizontal slide groove I18 is provided near the front side of the base 1, and a horizontal slide groove II110 is provided near the front side of the base 1 and above the horizontal slide groove I18. Cylinders I19 and II111 are installed inside the base 1. Cylinder II111 is located above cylinder I19. The piston rod of cylinder I19 extends horizontally forward into the horizontal slide groove I18, and the piston rod of cylinder II111 extends horizontally forward into the horizontal slide groove II110. Figure 5As shown. Cylinder mounting grooves 12 are provided near the left and right sides of the arc-shaped placement groove 11 of the base 1. In this embodiment, two cylinder mounting grooves 12 are provided near the left side of the arc-shaped placement groove 11 of the base 1, and two cylinder mounting grooves 12 are provided near the right side of the arc-shaped placement groove 11 of the base 1. Each cylinder mounting groove 12 houses a support plate drive cylinder 13, and the bottom of the cylinder seat of the support plate drive cylinder 13 is hinged to the bottom of the cylinder mounting groove 12. A nursing mechanism 4 for caring for the end of a diabetic foot amputation is provided on the slide table 17, such as... Figure 1 and Figure 2 As shown.

[0050] The arc-shaped support plate 2 includes a left arc-shaped support plate 21 and a right arc-shaped support plate 22. The arc-shaped support plate 2 is placed in the arc-shaped placement groove 11 of the base 1, such as... Figure 6 As shown, the left arc-shaped support plate 21 and the right arc-shaped support plate 22 are hinged to each other. The piston rod of the left support plate driving cylinder 13 is hinged to the corresponding part of the bottom surface of the left arc-shaped support plate 21, and the piston rod of the right support plate driving cylinder 13 is hinged to the corresponding part of the bottom surface of the right arc-shaped support plate 22. Both the left arc-shaped support plate 21 and the right arc-shaped support plate 22 are hollow arc-shaped support plates, as shown. Figure 7 As shown, multiple adjusting cylinders 23 are evenly distributed in the grooves on the upper surfaces of the left arc-shaped support plate 21 and the right arc-shaped support plate 22.

[0051] Among them, the supporting pad 3 is placed on the arc-shaped supporting plate 2, such as Figure 1 , Figure 2 and Figure 7 As shown, the support cushion 3 is composed of multiple air cushion units 31, and multiple pressure sensors are evenly distributed on the upper surface of the support cushion 3. In this embodiment, the support cushion 3 is composed of sixteen air cushion units 31. Each air cushion unit 31 has an air inlet hose 32 at its bottom, as shown... Figure 8As shown, the upper surfaces of the left arc-shaped support plate 21 and the right arc-shaped support plate 22 are each provided with an air nozzle connector 24 corresponding to the air inlet hose 32 at the bottom of the support cushion 3. Each air inlet hose 32 is connected to the corresponding air nozzle connector 24. Each air nozzle connector 24 is connected to each gas outlet on the corresponding pneumatic solenoid valve 26 through the corresponding secondary air pipe branch 25. That is, each air nozzle connector 24 on the left side is connected to each gas outlet on the left pneumatic solenoid valve 26 through the left secondary air pipe branch 25, and each air nozzle connector 24 on the right side is connected to each gas outlet on the right pneumatic solenoid valve 26 through the right secondary air pipe branch 25. The pneumatic solenoid valve 26 distributes gas into each air cushion unit 31 through the corresponding secondary air pipe branch 25, air nozzle connector 24 and air inlet hose 32, thereby regulating the air pressure in each air cushion unit 31. The left-side secondary tracheal branch 25 and the left-side pneumatic solenoid valve 26 are both located within the inner cavity of the left arc-shaped support plate 21. The right-side secondary tracheal branch 25 and the pneumatic solenoid valve 26 are both located within the inner cavity of the right arc-shaped support plate 22. The pneumatic solenoid valves 26 on both sides are connected one-to-one to the two gas outlets of the gas electromagnetic distribution valve 15 via the primary tracheal branch 14. The gas electromagnetic distribution valve 15 distributes gas to the corresponding pneumatic solenoid valve 26 via the corresponding primary tracheal branch 14. The gas electromagnetic distribution valve 15 is connected to the air pump 16 via the main tracheal line. The primary tracheal branch 14, the gas electromagnetic distribution valve 15, and the air pump 16 are all installed in the cavity 112 within the base 1. Figure 7 As shown.

[0052] At least two restraint straps 5 are provided on the top left side of the base 1 in the front-to-back direction. One end of the restraint strap 5 is connected to the top left side of the base 1, and the other end of the restraint strap 5 can be connected to the restraint strap length adjustment mechanism 6 located on the top right side of the base 1. Figure 1 and Figure 2 As shown. The restraint strap length adjustment mechanism 6 includes a rectangular sliding sleeve 61, a motor 62, and a gear 63. The rectangular sliding sleeve 61 is located on the right side of the base 1 near the top, with an open top. The motor 62 is located on the right side of the base 1 near the top and on one side of the rectangular sliding sleeve 61. The power output shaft of the motor 62 extends into the rectangular sliding sleeve 61. The gear 63 is mounted on the power output shaft of the motor 62 extending into the rectangular sliding sleeve 61. A restraint strap insertion hole 64 is formed between the gear 63 and the inner wall of the rectangular sliding sleeve 61. After the other end of the restraint strap 5 is inserted into the restraint strap insertion hole 64, the gear 63 driven by the motor 62 causes the restraint strap 5 to slide within the rectangular sliding sleeve 61. Figure 9 As shown.

[0053] Multiple pressure sensors are evenly distributed on the bottom surface of the slide table 17, and multiple pressure sensors are evenly distributed on the inner side of the restraint belt 5. Each sensor is connected to the controller. The support plate drive cylinder 13, gas solenoid distribution valve 15, air pump 16, cylinder I 19, cylinder II 111, regulating cylinder 23, pneumatic solenoid valve 26 and motor 62 are all connected to the controller.

[0054] When using this post-amputation care device for diabetic foot, the amputated limb is first placed on the support cushion 3. The controller controls the support plate drive cylinder 13, which drives the left and right arc-shaped support plates 21 and 22 to rotate relative to each other, gradually bringing them closer to the left and right sides of the limb. The controller then controls the adjustment cylinder 23, which drives each air cushion unit 31 to better fit the bottom and sides of the limb. The controller also controls the air pump 16, pneumatic solenoid valve 26, and gas solenoid distribution valve 15 to control the air pressure of each air cushion unit 31, based on the pressure sensor on the upper surface of each air cushion unit 31. The device provides feedback on the pressure information between the air cushion unit 31 and the limb, facilitating the controller to control the support plate drive cylinder 13, adjustment cylinder 23, air pump 16, pneumatic solenoid valve 26, and gas solenoid distribution valve 15. This allows the support plate drive cylinder 13, adjustment cylinder 23, air pump 16, pneumatic solenoid valve 26, and gas solenoid distribution valve 15 to work together, thereby clamping the limb under uniform force after diabetic foot amputation. This fixes the limb on a diabetic foot amputation care device under uniform force, effectively elevating the end of the limb and preventing it from contacting the bed surface, thus avoiding compression injury to the end of the limb. The restraint strap 5 is wrapped around the upper part of the limb after diabetic foot amputation. The right end of the restraint strap 5 is inserted into the restraint strap insertion hole 64 in the rectangular sliding sleeve 61. The controller controls the motor 62 to rotate, and the motor 62 drives the gear 63 to rotate. The teeth on the gear 63 press on the right end of the restraint strap 5 and cause the right end of the restraint strap 5 to slide downward or upward in the restraint strap insertion hole 64, thereby adjusting the tightness of the restraint strap 5 on the upper part of the limb after diabetic foot amputation. The pressure information between the restraint strap 5 and the limb is fed back by the pressure sensor on the inner side of the restraint strap 5, which facilitates the controller to control the direction and time of the motor 62. The restraint strap 5 and the supporting soft pad 3 wrap the limb after diabetic foot amputation, thereby fixing the limb after diabetic foot amputation to the diabetic foot amputation care device and preventing the limb from falling out of the diabetic foot amputation care device. Thus, the diabetic foot amputation care device effectively protects the limb after diabetic foot amputation. If a patient with diabetic foot amputation forcibly removes the amputated limb from the post-amputation care device, the pressure sensor on the inside of the restraint strap 5 or the pressure sensor on the upper surface of the air cushion unit 31 will instantly increase or decrease. When the change value exceeds the preset value, the controller will activate the alarm connected to it to issue a warning, or send a prompt to medical staff or the patient's mobile APP via Bluetooth module.

[0055] Nursing facility 4 includes a nursing enclosure 41, a nursing drive plate 42, a telescopic sleeve 43, and a nursing splint 44, such as Figure 1 , Figure 2 and Figure 6 As shown. The nursing drive plate 42, telescopic sleeve 43, and nursing clamp 44 are all located inside the nursing enclosure 41, and are arranged sequentially from front to back, as follows. Figure 10 As shown.

[0056] The nursing enclosure 41 consists of a bottom enclosure 411 and a left enclosure 412, a right enclosure 413, and a front enclosure 414 disposed on the bottom enclosure 411. Figure 11 As shown, the rear side of the bottom panel 411 is inserted into the horizontal slide groove I18 and slides in cooperation with the horizontal slide groove I18. The piston rod of the cylinder I19 is fixedly connected to the rear end of the bottom panel 411. The nursing panel 41 is driven by the cylinder I19 to slide back and forth on the slide table 17. The nursing drive plate 42 includes a bottom slide plate 423 and a nursing push plate 424 disposed on the bottom slide plate 423 near the front side, as shown. Figure 12 As shown. The rear side of the bottom slide plate 423 is inserted into the horizontal slide groove II 110 and slides in cooperation with the horizontal slide groove II 110. The piston rod of the cylinder II 111 is fixedly connected to the rear end of the bottom slide plate 423. The nursing drive plate 42 is driven by the cylinder II 111 to slide back and forth on the horizontal slide groove II 110. The nursing panel 41 is set above the slide table 17 through the horizontal slide groove I 18 and the nursing drive plate 42 is set through the horizontal slide groove II 110, and slides in cooperation with the base 1 in the front and back direction.

[0057] A protrusion 425 is provided near the center of the rear side of the nursing push plate 424. Multiple pushing cylinders 421 for pushing the nursing pad 442 are evenly distributed on the rear side of the protrusion 425. Two-stage telescopic cylinders 422 are respectively provided at the four corners of the rear side of the nursing drive plate 42. All four two-stage telescopic cylinders 422 are located on the outer side of the protrusion 425. Figure 13 As shown.

[0058] The structure of the telescopic sleeve 43 is as follows Figure 14 As shown, the front end of the telescopic sleeve 43 is fixedly connected to the rear side of the nursing drive plate 42 near the edge, and the rear end of the telescopic sleeve 43 is fixedly connected to the front side of the nursing clamp 44 near the edge. The structure of the nursing clamp 44 is as follows: Figure 15 As shown, the nursing splint 44 has a cavity 441 in the middle, and a nursing pad 442 corresponding to the end of the diabetic foot after amputation is provided in the cavity 441 of the nursing splint 44. Figure 16 As shown, the nursing pad 442 provides care for the distal end of a diabetic foot limb after amputation. The nursing pad 442 includes an elastic membrane 4421 and an elastic mesh bag 4422, as... Figure 17As shown, the elastic mesh bag 4422 is located on the front side of the elastic membrane 4421. Multiple drainage holes 4423 with ventilation and drainage functions are evenly distributed on the elastic membrane 4421. The elastic mesh bag 4422 is filled with absorbent cotton 4424. When fluid flows down the amputated end of the diabetic foot, it flows into the elastic mesh bag 4422 through the drainage holes 4423 and is absorbed by the absorbent cotton 4424, thus keeping the amputated end of the diabetic foot as dry as possible. The piston rod of the pushing cylinder 421 corresponds to the elastic mesh bag 4422. Extending the piston rod of the pushing cylinder 421 drives the elastic mesh bag 4422 to move backward, thereby moving the elastic membrane 4421 backward and close to the amputated end of the diabetic foot. This allows it to contact the wound repair dressing at the amputated end of the diabetic foot and apply slight pressure to the periphery of the wound repair dressing, providing care for the amputated end of the diabetic foot. It also prevents the wound repair dressing from becoming loose or detaching due to fluid seepage. Multiple pressure sensors, temperature sensors, and humidity sensors are mounted on the rear surface of the elastic membrane 4421, all of which are connected to a controller. The pressure sensors on the rear surface of the elastic membrane 4421 measure the contact force between the elastic membrane 4421 and the wound repair dressing after diabetic foot amputation. This contact force signal is fed back to the controller, which can adjust the push cylinder 421 on the rear side of the boss 425. The temperature sensor on the rear surface of the elastic membrane 4421 collects the temperature of the amputated end of the diabetic foot. This temperature signal is fed back to the controller. When the temperature exceeds a preset value, it can determine whether there is a risk of infection at the amputated end of the diabetic foot. The humidity sensor on the rear surface of the elastic membrane 4421 collects the amount of exudate at the amputated end of the diabetic foot. The collected humidity signal is input to the controller, which automatically determines whether cleaning and care of the amputated end of the diabetic foot and replacement of the wound repair dressing are necessary. The temperature and humidity sensors collect real-time data on the amount of exudate and temperature and humidity from the wound. When the wound temperature remains above 37.5°C, a cooling gel layer is applied. If the amputation wound suddenly experiences severe pain, blackening of the skin, or fever (body temperature > 38.5℃), the controller will send an alarm to the mobile APP via Bluetooth or trigger a buzzer to indicate possible infection, thrombosis, or necrosis.

[0059] Multiple independent air chambers can be evenly distributed within the elastic membrane 4421, and the guide holes 4423 are located between adjacent independent air chambers. The pressure sensor, temperature sensor, and humidity sensor on the rear side of the elastic membrane 4421 are arranged in an array on the rear side of the elastic membrane 4421, which can completely cover the corresponding amputation wound. The pressure distribution can be monitored in real time and a thermogram can be generated. Each independent air chamber can be controlled by a dynamic pressure increase and decrease module, and the air volume can be adjusted by a closed-loop control algorithm.

[0060] The nursing splint 44 consists of two frame splints, front and rear, that is, the nursing splint 44 is formed by the interlocking of the front frame splint 444 and the rear frame splint 445. Figure 15 As shown, the nursing pad 442 is sandwiched between the front and rear frame plates (i.e., the nursing pad 442 is sandwiched between the front frame plate 444 and the rear frame plate 445), as... Figure 16 As shown. The nursing facility 4 also includes a pressure plate 45 disposed within the nursing enclosure 41, the structure of which is as follows. Figure 18 As shown, the pressure plate 45 is a hollow frame pressure plate, located on the rear side of the nursing clamp 44. The nursing clamp 44 has through holes 443 near its four corners. Four two-stage telescopic cylinders 422 are located within the telescopic sleeve 43. The first-stage piston rod of each of the two-stage telescopic cylinders 422 passes through the corresponding through hole 443 on the nursing clamp 44 and is fixedly engaged with it. The second-stage piston rod of each of the two-stage telescopic cylinders 422 is fixedly connected to the front side of the pressure plate 45. Pressure sensors are evenly distributed on the front side of the pressure plate 45 near the hollow cavity. The pressure sensors on the front side of the pressure plate 45 and the two-stage telescopic cylinders 422 are all connected to a controller. For cases of significant exudation at the extremities immediately following diabetic foot amputation, where wound dressings require frequent replacement due to excessive exudation, a pressure plate 45 can be used. The controller simply extends the second-stage piston rod of the two-stage telescopic cylinder 422 backward, placing the wound dressing between the nursing splint 44 and the pressure plate 45. Then, the second-stage piston rod retracts forward, clamping the wound dressing between the nursing splint 44 and the pressure plate 45. The patient can then place the amputated diabetic foot limb... The wound repair dressing, placed on the support pad 3, is positioned close to the end of the amputated diabetic foot limb, between the nursing splint 44 and the pressure plate 45. The controller then controls cylinder II 111, whose piston rod moves the nursing drive plate 42 backward, thereby moving the nursing splint 44, the pressure plate 45, and the wound repair dressing between them backward. This allows the wound repair dressing to adhere to the end of the amputated diabetic foot limb, providing end-of-limb care. The wound repair dressing uses a bioactive dressing, which combines a pineapple leaf fiber matrix with a chitosan composite layer, offering both breathability and antibacterial properties. This bioactive dressing utilizes biocompatibility; the pineapple leaf fiber and chitosan composite matrix promotes cell proliferation while inhibiting pathogen growth.

[0061] Multiple miniature LED lights and miniature cameras are evenly embedded in the cavity 441 near the rear edge of the nursing splint 44. The LED lights provide light for the miniature cameras, facilitating medical staff to view the condition of the limb end after diabetic foot amputation. The miniature cameras collect image information of the limb end after diabetic foot amputation. The controller can be connected to a Bluetooth module to synchronize various information collected by pressure sensors, temperature sensors, humidity sensors, and miniature cameras to a mobile APP via Bluetooth. Data is recorded and health reports are generated, allowing patients and medical staff to monitor the situation promptly. This also helps medical staff to understand or adjust treatment plans. The doctor's APP can receive alerts and adjust treatment parameters. After subsequent wound cleaning, a smart dressing is applied to ensure close contact between the sensing layer and the wound. The controller continuously and automatically generates wound recovery reports via the Bluetooth module to facilitate dressing changes or treatment plan adjustments.

[0062] The control process of this diabetic foot amputation care device is as follows: Figure 19 As shown, when using this diabetic foot amputation care device, the following steps can be taken:

[0063] 1) Place the device under the limb after diabetic foot amputation. The controller controls the cylinder 13 of the support plates on the left and right sides to rotate the left arc support plate 21 and the right arc support plate 22 relative to each other. Adjust the size of the support groove formed by the left arc support plate 21 and the right arc support plate 22 to support and fix limbs of different sizes after amputation. The controller controls the adjusting cylinders 23, each adjusting cylinder 23 drives the corresponding air cushion unit 31, so that the air cushion unit 31 is close to the bottom and left and right sides of the amputated limb. The pressure sensor on the air cushion unit 31 collects the pressure signal, and the controller controls the air pump 16 according to the pressure feedback. The air pump 16 supplies air to the pneumatic solenoid valves 26 on the left and right sides through the gas solenoid valve 15 and the air pipe branch 14. The air pump 16 inflates the corresponding air cushion unit 31 through the pneumatic solenoid valve 26 and the air pipe secondary branch 25 connected to the pneumatic solenoid valve 26, thereby adjusting the pressure in the air cushion unit 31, so that the entire support soft pad 3 can better fit the amputated limb of diabetic foot, so that the lower part and left and right sides of the amputated limb of diabetic foot are evenly stressed, and the amputated limb of diabetic foot is evenly stressed and held on the support soft pad 3.

[0064] 2) The restraint strap 5 is wrapped around the upper part of the limb after diabetic foot amputation. The other end of the restraint strap 5 is inserted into the restraint strap insertion hole 64. The length of the restraint strap 5 is adjusted by the restraint strap length adjustment mechanism 6. The limb after diabetic foot amputation is wrapped by the restraint strap 5 and the support pad 3, thereby fixing the limb after diabetic foot amputation to the diabetic foot amputation care device and preventing the limb after diabetic foot amputation from falling out of the diabetic foot amputation care device. Thus, the diabetic foot amputation care device effectively protects the limb after diabetic foot amputation.

[0065] 3) If a patient with diabetic foot amputation forcibly removes the amputated limb from the post-amputation care device, the pressure sensor on the inside of the restraint strap 5 or the pressure sensor on the upper surface of the air cushion unit 31 will instantly increase or decrease. When the change value exceeds the preset value, the controller will control the alarm connected to it to issue a warning, or send a prompt to medical staff or the patient via Bluetooth module.

[0066] 4) If a patient with diabetic foot amputation wants to get up or lie down, the slide 17 will tilt forward when the limb tilts. The pressure sensor on the bottom of the slide 17 will increase instantly and transmit the signal to the controller. The controller controls cylinder I 19, and the piston rod of cylinder I 19 extends forward, driving the nursing panel 41 to move forward. This protects the nursing drive plate 42, telescopic sleeve 43, nursing splint 44 and pressure plate 45 inside the nursing panel 41. It also keeps the limb wound after diabetic foot amputation at a distance from the bed surface, thus avoiding pressure or friction on the limb wound after amputation.

[0067] 5) The end wound repair dressing for diabetic foot amputation corresponds to the elastic membrane 4421. Pushing the piston rod of cylinder 421 extends the elastic mesh bag 4422 backward, which in turn moves the elastic membrane 4421 backward and close to the end of the diabetic foot amputation. This allows it to contact the end wound repair dressing and apply slight pressure to the periphery of the dressing, providing care for the end of the diabetic foot amputation. It also prevents the dressing from becoming loose or detaching due to fluid leakage. The signals collected by the pressure sensor, temperature sensor, and humidity sensor on the rear surface of the elastic membrane 4421 are input to the controller. The controller automatically determines whether cleaning and dressing replacement are needed for the end of the diabetic foot amputation. It can also send an alarm to a mobile app via Bluetooth or trigger a buzzer, facilitating dressing changes or treatment adjustments by medical staff.

[0068] 6) In cases of significant exudation at the limb end immediately after diabetic foot amputation, the wound repair dressing needs frequent replacement due to the large amount of exudation. In such cases, a pressure plate 45 can be used. The wound repair dressing is placed close to the end of the amputated limb and clamped between the nursing splint 44 and the pressure plate 45. The controller controls the cylinder II 111 to adhere the wound repair dressing to the end of the amputated limb, thus providing care for the end of the limb.

[0069] 7) The controller controls the LED lights. When the LED lights are turned on, the camera captures images of the limb ends after diabetic foot amputation, and combines this with the patient's blood glucose data (connected to a blood glucose meter via Bluetooth) to generate a nursing index (Hlzs) and automatically determine the infection risk level. The medication container is replaceable to accommodate different treatment stages (such as antibiotics in the acute phase and angiogenesis-promoting drugs in the healing phase).

[0070] Post-amputation care devices for diabetic foot can provide standardized care and long-term management of the extremities after amputation, effectively reducing the risk of secondary amputation for most patients and gradually restoring their ability to live independently.

[0071] Finally, it should be noted that 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 preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A nursing device for diabetic foot after amputation, characterized in that: The system includes a base (1), an arc-shaped support plate (2), and a support cushion (3). The upper part of the base (1) has an arc-shaped placement groove (11) along the front-to-back direction. The arc-shaped support plate (2) includes a left arc-shaped support plate (21) and a right arc-shaped support plate (22). The arc-shaped support plate (2) is placed within the arc-shaped placement groove (11) of the base (1). The left arc-shaped support plate (21) and the right arc-shaped support plate (22) are hinged together. The arc-shaped placement groove (11) of the base (1) is located near... Cylinder mounting grooves (12) are provided on the left and near the right. Each cylinder mounting groove (12) is equipped with a support plate driving cylinder (13). The bottom of the cylinder seat of the support plate driving cylinder (13) is hinged to the bottom of the cylinder mounting groove (12). The piston rod of the support plate driving cylinder (13) on the left is hinged to the corresponding part of the bottom surface of the left arc-shaped support plate (21). The piston rod of the support plate driving cylinder (13) on the right is hinged to the corresponding part of the bottom surface of the right arc-shaped support plate (22). The left arc-shaped support plate (21) and the right arc-shaped support plate (22) are both hollow arc-shaped support plates. Multiple adjusting cylinders (23) are evenly distributed in the grooves on the upper surfaces of the left arc-shaped support plate (21) and the right arc-shaped support plate (22). The support cushion (3) is placed on the arc-shaped support plate (2). The support cushion (3) is composed of multiple air cushion units (31). Each air cushion unit (31) has an air inlet hose (32) at its bottom. The upper surfaces of the left arc-shaped support plate (21) and the right arc-shaped support plate (22) are each provided with an air nozzle connector (24) that corresponds one-to-one with the air inlet hose (32) at the bottom of the support cushion (3). Each air inlet hose (32) is connected to the corresponding air nozzle connector (24). Each air nozzle connector (24) is connected to the corresponding side air nozzle connector (24) through a corresponding... The secondary branch of the trachea (25) on the side is connected to each gas outlet on the corresponding pneumatic solenoid valve (26). The secondary branch of the trachea (25) on the left side and the pneumatic solenoid valve (26) on the left side are both located in the inner cavity of the left arc-shaped support plate (21). The secondary branch of the trachea (25) on the right side and the pneumatic solenoid valve (26) on the right side are both located in the inner cavity of the right arc-shaped support plate (22). The pneumatic solenoid valves (26) on both sides are connected to the two gas outlets of the gas electromagnetic distribution valve (15) through the primary branch of the trachea (14). The gas electromagnetic distribution valve (15) is connected to the air pump (16) through the main trachea. The primary branch of the trachea (14), the gas electromagnetic distribution valve (15) and the air pump (16) are all installed in the cavity inside the base (1). The front side of the base (1) extends forward near the bottom to form a slide (17), and a nursing mechanism (4) for nursing the end of the diabetic foot after amputation is provided on the slide (17).

2. The post-amputation care device for diabetic foot according to claim 1, characterized in that: The nursing facility (4) includes a nursing enclosure (41), a nursing drive plate (42), a telescopic sleeve (43), and a nursing clamp (44); the nursing drive plate (42), the telescopic sleeve (43), and the nursing clamp (44) are all located inside the nursing enclosure (41), and the nursing drive plate (42), the telescopic sleeve (43), and the nursing clamp (44) are arranged sequentially from front to back. The nursing enclosure (41) and the nursing drive plate (42) are both arranged above the slide table (17) and slide in a front-back direction with the base (1); the front end of the telescopic sleeve (43) is fixedly connected to the nursing drive plate (42), and the rear end of the telescopic sleeve (43) is fixedly connected to the nursing clamp (44); a cavity (4) is provided in the middle of the nursing clamp (44). 41) The cavity (441) of the nursing splint (44) is provided with a nursing pad (442) corresponding to the end of the diabetic foot after amputation. The nursing pad (442) includes an elastic membrane (4421) and an elastic mesh bag (4422). The elastic mesh bag (4422) is located on the front side of the elastic membrane (4421). The elastic membrane (4421) is evenly provided with a plurality of drainage holes (4423) with ventilation and drainage functions. The elastic mesh bag (4422) is filled with absorbent cotton (4424). The nursing drive plate (42) is evenly provided with a plurality of push cylinders (421) for pushing the nursing pad (442) near the rear side. The piston rod of the push cylinder (421) corresponds to the elastic mesh bag (4422).

3. The diabetic foot amputation care device according to claim 2, characterized in that: The nursing facility (4) also includes a pressure plate (45) set inside the nursing enclosure (41). The pressure plate (45) is a hollow frame pressure plate. The pressure plate (45) is set on the rear side of the nursing clamp (44). Two-stage telescopic cylinders (422) are respectively set at the four corners of the rear side of the nursing drive plate (42). The nursing clamp (44) is provided with through holes (443) near the four corners. The four two-stage telescopic cylinders (422) are located inside the telescopic sleeve (43). The first-stage piston rod of the two-stage telescopic cylinder (422) passes through the corresponding through hole (443) on the nursing clamp (44) and is fixedly engaged with the corresponding through hole (443). The second-stage piston rod of the two-stage telescopic cylinder (422) is fixedly connected to the front side of the pressure plate (45).

4. The diabetic foot amputation care device according to claim 3, characterized in that: The nursing splint (44) consists of two frame splints, one in front and one in back, and the nursing pad (442) is sandwiched between the two frame splints.

5. A post-amputation care device for diabetic foot according to claim 4, characterized in that: Multiple pressure sensors, temperature sensors, and humidity sensors are provided on the rear surface of the elastic membrane (4421).

6. A post-amputation care device for diabetic foot according to claim 5, characterized in that: The nursing enclosure (41) consists of a bottom enclosure (411) and a left enclosure (412), a right enclosure (413) and a front enclosure (414) set on the bottom enclosure (411). The base (1) is provided with a horizontal sliding groove I (18) near the front side. The rear side of the bottom enclosure (411) is inserted into the horizontal sliding groove I (18) and slides in cooperation with the horizontal sliding groove I (18). The base (1) is provided with a cylinder I (19). The piston rod of the cylinder I (19) extends horizontally forward into the horizontal sliding groove I (18) and is fixedly connected to the rear end of the bottom enclosure (411). The nursing enclosure (41) is driven by the cylinder I (19) to slide back and forth on the slide table (17).

7. A post-amputation care device for diabetic foot according to claim 6, characterized in that: The nursing drive plate (42) includes a bottom slide plate (423) and a nursing push plate (424) disposed on the bottom slide plate (423) near the front side. The base (1) is located near the front side and above the horizontal slide groove I (18) and is provided with a horizontal slide groove II (110). The rear side of the bottom slide plate (423) is inserted into the horizontal slide groove II (110) and slides in cooperation with the horizontal slide groove II (110). The base (1) is provided with a cylinder II (111) located inside and above the cylinder I (19). The piston rod of the cylinder II (111) extends horizontally forward into the horizontal slide groove II (110) and is fixedly connected to the rear end of the bottom slide plate (423). The nursing drive plate (42) is driven by the cylinder II (111) to slide back and forth on the horizontal slide groove II (110).

8. A post-amputation care device for diabetic foot according to claim 7, characterized in that: A boss (425) is provided near the center on the rear side of the nursing push plate (424). All the push cylinders (421) are evenly distributed on the rear side of the boss (425), and the four two-stage telescopic cylinders (422) are located on the outside of the boss (425).

9. A post-amputation care device for diabetic foot according to claim 8, characterized in that: At least two restraint straps (5) are provided on the top left side of the base (1) in the front-back direction. One end of the restraint strap (5) is connected to the top left side of the base (1), and the other end of the restraint strap (5) can be connected to the restraint strap length adjustment mechanism (6) provided on the right side of the base (1) near the top. The binding strap length adjustment mechanism (6) includes a rectangular sliding sleeve (61), a motor (62), and a gear (63). The rectangular sliding sleeve (61) is located on the right side of the base (1) near the top. The top of the rectangular sliding sleeve (61) is open. The motor (62) is located on the right side of the base (1) near the top and on one side of the rectangular sliding sleeve (61). The power output shaft of the motor (62) extends into the rectangular sliding sleeve (61). The gear (63) is installed on the power output shaft of the motor (62) that extends into the rectangular sliding sleeve (61). A binding strap insertion hole (64) is formed between the gear (63) and the inner sidewall of the rectangular sliding sleeve (61). After the other end of the binding strap (5) is inserted into the binding strap insertion hole (64), the gear (63) driven by the motor (62) drives the binding strap (5) to slide inside the rectangular sliding sleeve (61).

10. A post-amputation care device for diabetic foot according to claim 9, characterized in that: Multiple pressure sensors are evenly distributed on the bottom surface of the slide (17), and multiple pressure sensors are evenly distributed on the inner side of the restraint strap (5). The pressure sensors on the air cushion unit (31), the pressure sensors on the bottom surface of the slide (17), the pressure sensors on the inner side of the restraint strap (5), and the pressure sensors, temperature sensors, and humidity sensors on the back side of the elastic membrane are all connected to the controller. The support plate drive cylinder (13), gas electromagnetic distribution valve (15), air pump (16), cylinder I (19), cylinder II (111), regulating cylinder (23), pneumatic solenoid valve (26), motor (62), and two-stage telescopic cylinder (422) are all connected to the controller.

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