Device for preventing deep venous thrombosis of lower limbs

Abstract

The invention discloses a prevention device for preventing deep venous thrombosis of lower limbs and relates to the technical field of medical instruments, a plurality of insertion fixing holes are formed in one end of a flexible supporting pad at equal intervals, fixing reinforcing ribs are connected to the inner sides of the insertion fixing holes in a sleeving mode, and an alignment buffering air bag is installed at the bottom end of the flexible supporting pad; the top end of the inner side of the alignment buffering air bag is fixedly connected with a press-fit supporting sleeve, the bottom end of the inner side of the alignment buffering air bag is fixedly connected with a linkage supporting sleeve, and a plurality of press-fit air bags are installed at one end of the alignment buffering air bag at equal intervals. According to the device, the overall operation convenience is improved, meanwhile, through multi-adaptive massage treatment, uniform massage treatment is achieved, the massage comfort degree is guaranteed, so that uniform prevention treatment is achieved, the probability of deep vein thrombosis is reduced, and meanwhile, the convenience of the device is improved through multi-section matched operation.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a device for preventing deep vein thrombosis of lower limbs. Background Art

[0002] Deep vein thrombosis refers to the abnormal coagulation of blood in the deep veins, which usually occurs in the lower limbs, such as the thighs or calves. It is a lower limb venous reflux disorder. Slowed blood circulation is one of the causes of deep vein thrombosis. If you sit or stand for a long time, blood circulation will stagnate in the lower limbs for a long time, which will lead to the formation of blood clots. At present, prevention of thrombosis generally relies on patient self-activity or manual massage equipment for preventive treatment.

[0003] However, the existing massage equipment requires manual cooperation of the patient during preventive treatment, and cannot provide comprehensive and effective massage for patients whose legs are inconvenient to move or who are unable to exercise effectively, resulting in poor preventive effect and affecting the comfort of massage prevention. Summary of the invention

[0004] The present invention provides a device for preventing deep vein thrombosis of the lower limbs, which can effectively solve the problem proposed in the above background technology that the existing massage equipment requires manual cooperation of the patient during the preventive treatment, and it is impossible to perform comprehensive and effective massage for patients whose legs are inconvenient to move or who cannot move effectively by themselves, resulting in poor prevention effect and affecting the comfort of massage prevention.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: A device for preventing deep vein thrombosis of lower limbs, comprising a flexible support pad, wherein the flexible support pad is provided with a press-fit assembly;

[0006] The press-fit assembly includes an insertion fixing hole;

[0007] A plurality of insertion and fixing holes are equidistantly provided at one end of the flexible support pad, a fixed reinforcing rib is sleeved on the inner side of the insertion and fixing hole, an alignment buffer airbag is installed at the bottom end of the flexible support pad, a pressing support sleeve is fixedly connected to the top inner side of the alignment buffer airbag, a linkage support sleeve is fixedly connected to the bottom inner side of the alignment buffer airbag, a plurality of pressing airbags are equidistantly installed at one end of the alignment buffer airbag, a support limiting sleeve is fixedly provided on the top inner side of the pressing airbag, and a shaped alignment sleeve is fixedly provided on the bottom inner side of the pressing airbag;

[0008] A boost air pump is installed on one side of the top of the flexible support pad through a motor seat, one end of the alignment buffer airbag and the compression airbag is penetrated by an intake pipe rack, one end of the intake pipe rack is embedded with a number of control valves equidistantly installed, one end of the alignment buffer airbag and the compression airbag is penetrated by an external row fixed pipe, one end of the external row fixed pipe is embedded with an exhaust valve, and a battery is installed on one side of the top of the flexible support pad.

[0009] According to the above technical solution, a threaded connection sleeve is symmetrically installed on the top of the flexible support pad, and a clamping support sleeve is rotatably sleeved on the side end of the threaded connection sleeve, and a telescopic support plate is slidably connected to the inner side of the clamping support sleeve, and the top of the telescopic support plate is clamped and connected with the output shaft of the rotating motor, and one end of the rotating motor is connected to one end of the positioning support plate through the motor seat;

[0010] One end of the positioning support plate is slidably connected with a supporting positioning sleeve, a positioning insertion block is fixed at the top of the flexible support pad corresponding to the position of the supporting positioning sleeve, the top of the threaded connection sleeve is threadedly connected with a combined limit block, and one end of the telescopic support plate and the positioning support plate are both fixed with connecting electromagnets.

[0011] According to the above technical solution, the support and limiting sleeve is sleeve-connected with the shaping and aligning sleeve, and the longitudinal section of the shaping and aligning sleeve is arc-shaped.

[0012] According to the above technical solution, one end of the intake pipe rack is connected to one end of the booster air pump through an adapter, and one end of the intake pipe rack is installed through one end of the flexible support pad.

[0013] According to the above technical solution, the top ends of the engaging support sleeve and the supporting positioning sleeve are fitted with one end of the combined limit block, and the telescopic support plate and the engaging support sleeve and the positioning support plate and the supporting positioning sleeve are magnetically combined by connecting electromagnets.

[0014] According to the above technical solution, the compression support sleeve is sleeve-connected with the linkage support sleeve, and the support positioning sleeve is snap-connected with the positioning insertion block.

[0015] According to the above technical solution, the longitudinal sections of the telescopic support plate and the positioning support plate are both T-shaped;

[0016] The booster air pump, the control valve, the exhaust valve, the rotating motor and the input end connected to the electromagnet are all electrically connected to the output end of the battery;

[0017] The booster pump, control valve, exhaust valve, rotary motor, connecting electromagnet and storage battery are wirelessly connected to an external controller;

[0018] The input end of the external controller is electrically connected to the output end of the external power supply.

[0019] According to the above technical solution, the flexible support pad is provided with a combination component;

[0020] The combined assembly includes a supporting clamping block;

[0021] A plurality of support clamping blocks are equidistantly fixed on one side of the top of the flexible support pad, a plurality of connecting support strips are equidistantly fixed on the other side of the top of the flexible support pad, Velcro is fixed at the top of the flexible support pad near the support clamping block and at the bottom of the connecting support strip, and an elastic retractable belt is fixed between the retractable support plate and the positioning support plate;

[0022] The telescopic support plate and the positioning support plate are both fixed with a clamping support belt at one end, a clamping support plate is sleeved between the two clamping support belts, sliding limit holes are opened at both ends of the clamping support plate, the bottom ends of the sliding limit holes are symmetrically connected with pressing screws through screw seats, the top ends of the pressing screws are rotatably connected with pressing damping plates, and flexible limit pads are installed at the top ends of the clamping support plates.

[0023] According to the above technical solution, the width of the connecting support strip is equal to the inner width of the supporting clamping block, the clamping support belt is slidably installed on the inner side of the sliding limit hole, and the compression damping plate is slidably installed on the inner side of the clamping support plate.

[0024] According to the above technical solution, one end of the clamping support plate is fitted with one end of the clamping support belt, and the length and width of the flexible limiting pad are respectively equal to the length and width corresponding to the clamping support plate.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. A pressing assembly is provided. The booster air pump and the air intake pipe rack inject air into the alignment buffer airbag and the pressing airbag. The air intake position of the air intake pipe rack is controlled by the control valve. At this time, the air pushes the pressing support sleeve and the linkage support sleeve to move in opposite directions on both sides. The moving direction of the alignment buffer airbag is controlled in cooperation with the fixed reinforcing ribs to realize the unidirectional movement of the alignment buffer airbag, and the pressing airbag is pushed to move toward the leg. The air inside the pressing airbag pushes the fixed alignment sleeve to move toward the leg. The exhaust valve is cooperated to open the external fixed pipe to realize exhaust reset. The legs are squeezed by expanding the multiple sections of the pressing airbags one by one to realize the leg massage. In addition, cyclic pressing and fine-tuning pressing can be realized. The pressure of the air pressure is changed by automatic pressing and pressure, so as to ensure the overall uniformity, realize flexible massage and massage uniformization, and ensure the comfort of massage.

[0027] Insert the engaging support sleeve and the supporting positioning sleeve into the side end of the threaded connection sleeve, use the positioning insertion block to limit the engagement of the supporting positioning sleeve, cooperate with the combined limit block to limit the engaging support sleeve and the supporting positioning sleeve, so as to realize the combination of two sets of massage equipment, and the rotating motor drives the telescopic support plate and the engaging support sleeve to rotate along the threaded connection sleeve to realize the bending between the thigh and the calf, realize auxiliary movement, and ensure the steady operation of the preventive training;

[0028] Through multi-stage blocking and limiting and gradual inward squeezing, combined with multi-stage fine-tuning pressing and inlet and outlet reciprocating pressing, steady massage is achieved, and the pressing position and pressing state of the legs are changed in combination with external force rotation, which effectively solves the problem in the prior art that manual cooperation is required and some patients cannot use it effectively, thereby improving the convenience of the overall operation. At the same time, through multi-adaptive massage processing, uniform massage processing is achieved to ensure the comfort of massage, thereby achieving uniform preventive treatment and reducing the probability of deep vein thrombosis. At the same time, multi-stage coordinated operation is used to improve the convenience of the equipment.

[0029] 2. A combined component is provided, and the connecting support strip is inserted into the side end of the supporting clamping block, and the connecting support strip and the flexible support pad are combined and fixed by Velcro, so as to adjust the size of the equipment according to the leg diameter of the user, and the locking support belt is inserted into the inner side of the sliding limit hole at the side end of the locking support plate, and the locking support belt is pressed and limited by the locking damping plate driven by the locking screw, and the telescopic support plate and the positioning support plate are clamped by the elastic telescopic belt, and the flexible limit pad is used for anti-slip treatment to achieve steady fitting and positioning, and the multi-stage adjustable clamping positioning cooperates with each other to achieve multi-point support and multi-point limit connection of the legs, which is convenient for use by different people and ensures the overall stability and firmness of the connection.

[0030] In summary, by cooperating with each other through the pressing components and the combined components, and utilizing multi-segment connections and multi-point fixation, the equipment can be steadily aligned and locked. At the same time, rotation adjustment and pneumatic pressing can be used to achieve multi-point separate pressing. The pressing is divided into zones and steps according to the patient's leg shape, the force required for pressing, and the actual state, thereby improving the effect of prevention. By cooperating with multiple components, the effect of prevention and the comfort of the equipment are effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0032] In the attached picture:

[0033] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0034] Figure 2 is a schematic structural diagram of a pressing assembly of the present invention;

[0035] Figure 3 It is a schematic diagram of the installation structure of the linkage support sleeve of the present invention;

[0036] Figure 4 It is a schematic diagram of the installation structure of the positioning support plate of the present invention;

[0037] Figure 5 It is a schematic diagram of the installation structure of the pressed airbag of the present invention;

[0038] Figure 6 The present invention Figure 5 A magnified schematic diagram of the structure of A;

[0039] Figure 7 It is a structural schematic diagram of the combined assembly of the present invention;

[0040] Figure 8 It is a schematic diagram of the installation structure of the clamping support belt of the present invention;

[0041] Numbers in the figure: 1, flexible support pad;

[0042] 2. Press-fit assembly; 201. Insert fixing hole; 202. Fix reinforcing rib; 203. Alignment buffer airbag; 204. Press-fit support sleeve; 205. Linkage support sleeve; 206. Press-fit airbag; 207. Support limit sleeve; 208. Forming alignment sleeve; 209. Booster air pump; 210. Intake pipe rack; 211. Control valve; 212. External fixed pipe; 213. Exhaust valve; 214. Battery; 215. Threaded connection sleeve; 216. Clamping support sleeve; 217. Telescopic support plate; 218. Rotating motor; 219. Positioning support plate; 220. Support positioning sleeve; 221. Positioning insertion block; 222. Combined limit block; 223. Connecting electromagnet;

[0043] 3. Combined components; 301. Support card block; 302. Connecting support strip; 303. Velcro; 304. Elastic stretch belt; 305. Snap-fit ​​support belt; 306. Snap-fit ​​support plate; 307. Sliding limit hole; 308. Pressed screw rod; 309. Pressed damping plate; 310. Flexible limit pad. DETAILED DESCRIPTION

[0044] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0045] Example: Figure 1-8 As shown, the present invention provides a technical solution, a device for preventing deep vein thrombosis of lower limbs, comprising a flexible support pad 1, wherein the flexible support pad 1 is provided with a pressing component 2;

[0046] The pressing assembly 2 includes an insertion fixing hole 201, a fixing reinforcing rib 202, an alignment buffer airbag 203, a pressing support sleeve 204, a linkage support sleeve 205, a pressing airbag 206, a support limit sleeve 207, a shaping alignment sleeve 208, a booster air pump 209, an intake pipe rack 210, a control valve 211, an external fixed pipe 212, an exhaust valve 213, a battery 214, a threaded connection sleeve 215, a clamping support sleeve 216, a telescopic support plate 217, a rotating motor 218, a positioning support plate 219, a support and positioning sleeve 220, a positioning insertion block 221, a combined limit block 222 and a connecting electromagnet 223;

[0047] A plurality of insertion fixing holes 201 are equidistantly provided at one end of the flexible support pad 1, and a fixed reinforcing rib 202 is sleeved inside the insertion fixing hole 201. A positioning buffer airbag 203 is installed at the bottom end of the flexible support pad 1, and a pressing support sleeve 204 is fixedly connected to the top of the inner side of the positioning buffer airbag 203, and a linkage support sleeve 205 is fixedly connected to the inner bottom end of the positioning buffer airbag 203. The pressing support sleeve 204 is sleeved and connected with the linkage support sleeve 205 to realize pressing. Limit and alignment limit, a plurality of pressing airbags 206 are equidistantly installed at one end of the alignment buffer airbag 203, a support limiting sleeve 207 is fixed to the top of the inner side of the pressing airbag 206, and a fixed alignment sleeve 208 is fixed to the bottom of the inner side of the pressing airbag 206. The support limiting sleeve 207 is sleeved and connected with the fixed alignment sleeve 208, and the longitudinal section of the fixed alignment sleeve 208 is an arc, which realizes steady pressurization alignment and sliding alignment processing, and ensures the steady operation of the overall pressing massage;

[0048] A booster air pump 209 is installed on one side of the top of the flexible support pad 1 through the motor seat, and an intake pipe rack 210 is penetrated through one end of the alignment buffer airbag 203 and the press-fit airbag 206, and one end of the intake pipe rack 210 is connected to one end of the booster air pump 209 through an adapter, and one end of the intake pipe rack 210 is penetrated and installed on one end of the flexible support pad 1, so as to realize steady intake processing and intake linkage, and ensure the steady operation of the airbag, and a plurality of control valves 211 are equidistantly embedded and installed on one end of the intake pipe rack 210, and one end of the alignment buffer airbag 203 and the press-fit airbag 206 are penetrated and connected with an outer row fixed pipe 212, and an exhaust valve 213 is embedded and installed on one end of the outer row fixed pipe 212, and a battery 214 is installed on one side of the top of the flexible support pad 1;

[0049] A threaded connection sleeve 215 is symmetrically installed at the top of the flexible support pad 1. The side end of the threaded connection sleeve 215 is rotatably sleeved with a locking support sleeve 216. The inner side of the locking support sleeve 216 is slidably connected with a telescopic support plate 217. The longitudinal sections of the telescopic support plate 217 and the positioning support plate 219 are both T-shaped, realizing alignment and limited locking. The top of the telescopic support plate 217 is snap-connected with the output shaft of the rotating motor 218. One end of the rotating motor 218 is connected to one end of the positioning support plate 219 through the motor seat. One end of the positioning support plate 219 is slidably connected with a support positioning sleeve 220, and the support positioning sleeve 220 is snap-connected with the positioning insertion block 221 , to achieve steady linkage cooperation, the top of the engaging support sleeve 216 and the support positioning sleeve 220 are fitted with one end of the combined limit block 222, and the telescopic support plate 217 and the engaging support sleeve 216 and the positioning support plate 219 and the support positioning sleeve 220 are magnetically combined by connecting the electromagnet 223 to achieve steady folding processing and steady linkage operation of sliding support alignment, and the top of the flexible support pad 1 is fixed with a positioning insertion block 221 at the position of the support positioning sleeve 220, and the top of the threaded connection sleeve 215 is threadedly connected with a combined limit block 222, and one end of the telescopic support plate 217 and the positioning support plate 219 are fixed with a connecting electromagnet 223;

[0050] For stable operation of the equipment, the booster pump 209, the control valve 211, the exhaust valve 213, the rotating motor 218 and the input end connected to the electromagnet 223 are all electrically connected to the output end of the battery 214;

[0051] The booster pump 209, the control valve 211, the exhaust valve 213, the rotary motor 218, the connecting electromagnet 223 and the battery 214 are wirelessly connected to the external controller;

[0052] The input end of the external controller is electrically connected to the output end of the external power supply.

[0053] The flexible support pad 1 is provided with a combination component 3;

[0054] The combined component 3 includes a support card block 301, a connecting support strip 302, a Velcro 303, an elastic stretch belt 304, a clamping support belt 305, a clamping support plate 306, a sliding limit hole 307, a pressing screw rod 308, a pressing damping plate 309 and a flexible limit pad 310;

[0055] A plurality of support clamping blocks 301 are equidistantly fixed on one side of the top of the flexible support pad 1, and a plurality of connecting support strips 302 are equidistantly fixed on the other side of the top of the flexible support pad 1. The width of the connecting support strip 302 is equal to the inner width of the supporting clamping block 301 to achieve a sleeve connection. Velcro 303 is fixed at the top of the flexible support pad 1 near the supporting clamping block 301 and at the bottom of the connecting support strip 302. An elastic retractable belt 304 is fixed between the retractable support plate 217 and the positioning support plate 219.

[0056] A snap-fit ​​support belt 305 is fixed at one end of the telescopic support plate 217 and the positioning support plate 219, and a snap-fit ​​support plate 306 is sleeved between the two snap-fit ​​support belts 305. Sliding limit holes 307 are opened at both ends of the snap-fit ​​support plate 306. The bottom ends of the sliding limit holes 307 are symmetrically connected with pressing screws 308 through screw seats, and the top ends of the pressing screws 308 are rotatably connected with pressing damping plates 309. The snap-fit ​​support belt 305 is slidably installed on the inner side of the sliding limit hole 307, and the pressing damping plate 309 is slidably installed on the inner side of the snap-fit ​​support plate 306. One end of the snap-fit ​​support plate 306 is fitted with one end of the snap-fit ​​support belt 305 to achieve alignment support and snap-fit ​​limitation. A flexible limiting pad 310 is installed on the top of the snap-fit ​​support plate 306. The length and width of the flexible limiting pad 310 are respectively equal to the corresponding length and width of the snap-fit ​​support plate 306 to achieve alignment pressing and alignment support.

[0057] The working principle and use process of the present invention are as follows: the blood flow state and muscle activity of the lower limbs are monitored by an external sensing monitoring device. When potential risk factors for thrombosis such as abnormal blood flow velocity or long-term muscle inactivity are detected, deep vein thrombosis of the lower limbs is prevented by attaching the compression airbag 206 and the alignment buffer airbag 203 to the side ends of the thigh and calf, and the connecting support bar 302 is inserted into the side end of the supporting clamping block 301 by rotating the flexible support pad 1, and the connecting support bar 302 and the flexible support pad 1 are combined and fixed by using the Velcro 303, so as to adjust the size of the device according to the leg diameter of the user;

[0058] After the fixing is completed, the engaging support sleeve 216 and the supporting positioning sleeve 220 are inserted into the side end of the threaded connection sleeve 215. At this time, the positioning insertion block 221 is used to limit the engagement of the supporting positioning sleeve 220, and the combined limiting block 222 is combined and connected with the threaded connection sleeve 215 by using threads to realize the combined limiting block 222 to limit the engaging support sleeve 216 and the supporting positioning sleeve 220. The two engaging support belts 305 are attached to the side ends of the legs, and the engaging support belts 305 are inserted into the engaging support plate 30 The inner side of the sliding limit hole 307 at the side end of the 6 side is driven by the pressing screw 308 to move along the clamping support plate 306, and the clamping support belt 305 is pressed and limited by the pressing damping plate 309. At this time, the telescopic support plate 217 and the positioning support plate 219 are limited and clamped by the elastic telescopic belt 304. At the same time, the flexible limit pad 310 is used for anti-slip treatment to achieve steady fitting and positioning, realize multi-stage clamping positioning and clamping limit, and ensure the stability of the overall fixation;

[0059] After the overall fixed connection is completed, the battery 214 supplies power to the equipment, the booster pump 209 and the air intake pipe rack 210 inject air into the alignment buffer airbag 203 and the pressing airbag 206, the air intake position of the air intake pipe rack 210 is adjusted through the control valve 211, and air is injected into the inner side of the alignment buffer airbag 203 through the air intake pipe rack 210. At this time, the air pushes the pressing support sleeve 204 and the linkage support sleeve 205 to move toward both sides. At this time, the pressing support sleeve 204 and the linkage support sleeve 205 are slidably connected, and cooperate with the fixed reinforcement rib 202 inserted into the fixing hole 201 to limit the alignment buffer airbag 203 , realize unidirectional movement of the alignment buffer airbag 203, push the pressed airbag 206 to move toward the leg, at this time, multiple pressed airbags 206 are aired one by one, and the internal air pushes the fixed alignment sleeve 208 to move toward the leg, at this time, the fixed alignment sleeve 208 is slidably connected with the support limit sleeve 207, and an exhaust valve 213 opens the external fixed pipe 212 to discharge the air in the pressed airbag 206, realize the reset of the pressed airbag 206, and squeeze the leg by expanding the multiple sections of pressed airbags 206 one by one to realize the leg massage, and realize flexible massage through air pressure pressing to ensure the comfort of massage;

[0060] Then, the telescopic support plate 217 and the engaging support sleeve 216 are slidably exchanged, and the positioning support plate 219 and the supporting positioning sleeve 220 are slidably exchanged. At this time, the engaging support sleeve 216 and the telescopic support plate 217 and the positioning support plate 219 and the supporting positioning sleeve 220 are magnetically fixed by connecting the electromagnet 223, and the telescopic support plate 217 and the engaging support sleeve 216 are driven by the rotating motor 218 to rotate along the threaded connection sleeve 215, so as to realize the rotational bending between the thigh and the calf, realize auxiliary movement, and ensure the steady operation of the preventive training.

[0061] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for preventing deep vein thrombosis of lower limbs, comprising a flexible support pad (1), characterized in that: The flexible support pad (1) is provided with a pressing component (2); The pressing assembly (2) comprises an insertion fixing hole (201); A plurality of insertion fixing holes (201) are equidistantly provided at one end of the flexible support pad (1), a fixing reinforcing rib (202) is sleeved on the inner side of the insertion fixing hole (201), an alignment buffer airbag (203) is installed at the bottom end of the flexible support pad (1), a pressing support sleeve (204) is fixedly connected to the inner top end of the alignment buffer airbag (203), a linkage support sleeve (205) is fixedly connected to the inner bottom end of the alignment buffer airbag (203), a plurality of pressing airbags (206) are equidistantly provided at one end of the alignment buffer airbag (203), a support limiting sleeve (207) is fixedly provided at the inner top end of the pressing airbag (206), and a shaping alignment sleeve (208) is fixedly provided at the inner bottom end of the pressing airbag (206); A booster air pump (209) is installed on one side of the top end of the flexible support pad (1) through a motor seat; an intake pipe frame (210) is penetrated through one end of the alignment buffer airbag (203) and the compression airbag (206); a plurality of control valves (211) are equidistantly embedded and installed on one end of the intake pipe frame (210); an outer row fixed pipe (212) is penetrated and connected to one end of the alignment buffer airbag (203) and the compression airbag (206); an exhaust valve (213) is embedded and installed on one end of the outer row fixed pipe (212); and a battery (214) is installed on one side of the top end of the flexible support pad (1).

2. A device for preventing deep vein thrombosis of lower limbs according to claim 1, characterized in that: A threaded connection sleeve (215) is symmetrically mounted on the top of the flexible support pad (1); a locking support sleeve (216) is rotatably sleeved on the side end of the threaded connection sleeve (215); a telescopic support plate (217) is slidably connected to the inner side of the locking support sleeve (216); the top end of the telescopic support plate (217) is locked and connected to the output shaft of the rotating motor (218); one end of the rotating motor (218) is connected to one end of the positioning support plate (219) through a motor seat; One end of the positioning support plate (219) is slidably connected to a support positioning sleeve (220); a positioning insertion block (221) is fixed at the top of the flexible support pad (1) at a position corresponding to the support positioning sleeve (220); a combined limit block (222) is threadedly connected to the top of the threaded connection sleeve (215); and a connecting electromagnet (223) is fixed at one end of each of the telescopic support plate (217) and the positioning support plate (219).

3. The device for preventing deep vein thrombosis of lower limbs according to claim 1, characterized in that: The support and limiting sleeve (207) is sleeved and connected with the shaping and aligning sleeve (208), and the longitudinal section of the shaping and aligning sleeve (208) is arc-shaped.

4. The device for preventing deep vein thrombosis of lower limbs according to claim 1, characterized in that: One end of the air intake pipe frame (210) is connected to one end of the booster air pump (209) via an adapter, and one end of the air intake pipe frame (210) is installed through one end of the flexible support pad (1).

5. The device for preventing deep vein thrombosis of lower limbs according to claim 2, characterized in that: The top ends of the engaging support sleeve (216) and the supporting positioning sleeve (220) are fitted with one end of the combined limiting block (222), and the telescopic support plate (217) and the engaging support sleeve (216) and the positioning support plate (219) and the supporting positioning sleeve (220) are magnetically combined by connecting an electromagnet (223).

6. The device for preventing deep vein thrombosis of lower limbs according to claim 2, characterized in that: The pressed support sleeve (204) is sleeve-connected with the linkage support sleeve (205), and the support positioning sleeve (220) is snap-connected with the positioning insertion block (221).

7. The device for preventing deep vein thrombosis of lower limbs according to claim 2, characterized in that: The longitudinal sections of the telescopic support plate (217) and the positioning support plate (219) are both T-shaped; The booster air pump (209), the control valve (211), the exhaust valve (213), the rotating motor (218) and the input end connected to the electromagnet (223) are all electrically connected to the output end of the battery (214); The booster air pump (209), the control valve (211), the exhaust valve (213), the rotating motor (218), the connecting electromagnet (223) and the storage battery (214) are connected to an external controller via wireless communication; The input end of the external controller is electrically connected to the output end of the external power supply.

8. The device for preventing deep vein thrombosis of lower limbs according to claim 1, characterized in that: The flexible support pad (1) is provided with a combination component (3); The combined component (3) comprises a supporting clamping block (301); A plurality of support clamping blocks (301) are fixed at equal distances on one side of the top of the flexible support pad (1), a plurality of connecting support strips (302) are fixed at equal distances on the other side of the top of the flexible support pad (1), a Velcro strip (303) is fixed at the top of the flexible support pad (1) near the support clamping block (301) and at the bottom of the connecting support strip (302), and an elastic retractable belt (304) is fixed between the retractable support plate (217) and the positioning support plate (219); A snap-fit ​​support belt (305) is fixed to one end of the telescopic support plate (217) and the positioning support plate (219); a snap-fit ​​support plate (306) is sleeved between the two snap-fit ​​support belts (305); sliding limit holes (307) are provided at both ends of the snap-fit ​​support plate (306); the bottom ends of the sliding limit holes (307) are symmetrically connected to a pressing screw (308) through a screw seat; the top end of the pressing screw (308) is rotatably connected to a pressing damping plate (309); and a flexible limit pad (310) is installed at the top end of the snap-fit ​​support plate (306).

9. A device for preventing deep vein thrombosis of lower limbs according to claim 8, characterized in that: The width of the connecting support strip (302) is equal to the inner width of the supporting clamping block (301), the clamping support belt (305) is slidably mounted on the inner side of the sliding limit hole (307), and the pressing damping plate (309) is slidably mounted on the inner side of the clamping support plate (306).

10. The device for preventing deep vein thrombosis of lower limbs according to claim 8, characterized in that: One end of the snap-fit ​​support plate (306) is in contact with one end of the snap-fit ​​support belt (305), and the length and width of the flexible limiting pad (310) are respectively equal to the length and width corresponding to the snap-fit ​​support plate (306).

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