Motor type non-invasive blood circulation perfusion enhancement auxiliary system and control method thereof

By combining a ball screw and a damper in the pressurization mechanism, along with a servo motor and physiological signal control, the problems of uneven pressurization and high noise have been solved, achieving precise pressurization and suitability for home use.

CN117618230BActive Publication Date: 2026-03-20BEIJING GUORUN HEALTH MEDICAL INVESTMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-12-25
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

The existing auxiliary system applies pressure unevenly, cannot achieve precise control, and is noisy, making it unsuitable for home use.

Method used

The pressurization mechanism, which combines ball screws and dampers, along with servo motors and physiological signal control, achieves precise pressurization and uniform force distribution.

Benefits of technology

It achieves precise and uniform pressurization, reduces noise, is suitable for home use, and expands the application scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a motor type noninvasive blood circulation perfusion enhancement auxiliary system, which comprises a pressurizing mechanism which is detachably sleeved on the outside of hips, thighs or shanks; the pressurizing mechanism comprises a shell, a binding belt which is arranged on one side of the shell and forms a surrounding ring with the shell, a ball screw which is rotatably arranged on the other side of the shell and is connected with a power source at one end, and two nuts with opposite rotation directions which are arranged on the ball screw; four corners of the binding belt are connected with the two nuts through connecting belts, and a damper is arranged on each connecting belt to automatically adjust the contraction amount of the connecting belt; and the connecting belts on the same side of the two ends of the binding belt are arranged on the two sides of the same nut. The application further discloses a control method of the motor type noninvasive blood circulation perfusion enhancement auxiliary system, which can adjust the pressurizing position, pressurizing sequence and pressurizing time according to different pressurizing requirements of users, and is more widely used in more scenes and application ranges.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rescue equipment, more particularly, the present application relates to a motor type non-invasive blood circulation perfusion enhancement auxiliary system and a control method thereof. BACKGROUND

[0002] The motor type non-invasive blood circulation perfusion enhancement auxiliary system is a kind of through extracorporeal non-invasive, promote the blood in limb tissue and blood vessel back flow to main blood vessel stem branch, improve the blood perfusion of heart, brain, kidney and other important organs.The system can be applied to extracorporeal counterpulsation, vein and lymphatic vessel, for preventing limb swelling and preventing venous thrombosis, and carrying out pressurized treatment.

[0003] At present, the auxiliary system on the market all adopts air bag type, the extrusion degree of air bag inflation pressurization is not accurate enough, and the reaction speed is relatively slow, and air bag inflation needs to use air compressor to generate high pressure air, and the air compressor is large in size and large in working noise, cannot realize household use;There is also a way of directly driving the restraint belt by a motor to pressurize the limbs, but due to the taper structure of the pressurized limb part, the restraint degree of different positions cannot be adjusted when pressurizing, resulting in inconsistent contraction amount of the first and last ends of the limb, which will cause inconsistent pressure in different areas, affect the uniformity of pressurization, cause discomfort in use, and even cause waste of resources. SUMMARY

[0004] The purpose of the present application is to design and develop a motor type non-invasive blood circulation perfusion enhancement auxiliary system, which compensates for the difference in contraction amount of the restraint belt by combining the damper and the ball screw, so that the pressurization is more accurate and the stress is more uniform.

[0005] The present application also designs and develops a control method of the motor type non-invasive blood circulation perfusion enhancement auxiliary system, which provides different sequential pressurization selection methods by combining the pressurization mechanism with the physiological signals such as electrocardio and pulse of the user, to achieve different blood circulation perfusion effects, more application and use scenarios, and more portability.

[0006] The technical scheme provided by the present application is as follows:

[0007] A motor type non-invasive blood circulation perfusion enhancement auxiliary system, comprising:

[0008] A pressurization mechanism, which is detachably sleeved on the outside of the hip, thigh or calf;

[0009] The pressurization mechanism comprises:

[0010] A shell; and

[0011] A restraint belt, which is arranged on one side of the shell and forms an enclosing ring with the shell, and the middle part of the restraint belt is detachably connected;

[0012] a ball screw rotatably arranged on the other side of the housing and having one end connected to the power source, the ball screw being provided with two nuts in opposite rotation directions;

[0013] a plurality of dampers arranged in pairs on both sides of the two nuts;

[0014] a plurality of connecting belts, one end of each of which is connected to one of the plurality of dampers in one-to-one correspondence, and the other end of each of which is connected to a corner of the restraint belt;

[0015] wherein the connecting belts on the same side of the two ends of the restraint belt are arranged on both sides of the same nut.

[0016] Preferably, the housing comprises:

[0017] a bottom plate, symmetrical first adjustment grooves being arranged on both sides of the bottom plate;

[0018] two cover plates, which are arc-shaped structures and are symmetrically and detachably arranged on one side of the bottom plate, second adjustment grooves being arranged on both of the cover plates;

[0019] a first housing arranged on the other side of the bottom plate, so that an accommodation cavity is formed between the first housing and the bottom plate;

[0020] wherein the two ends of the restraint belt are arranged in the accommodation cavity after sequentially passing through the second adjustment grooves and the first adjustment grooves, so that the restraint belt forms an enclosing ring with the two cover plates and the bottom plate, and the ball screw, the plurality of connecting belts and the plurality of dampers are arranged in the accommodation cavity.

[0021] Preferably, the accommodation cavity further comprises:

[0022] a first support plate, which is arranged vertically on the other side of the bottom plate, and first arc-shaped recesses are symmetrically arranged on the first support plate;

[0023] a second support plate, which is arranged vertically on the other side of the bottom plate, and second arc-shaped recesses are symmetrically arranged on the second support plate, the second support plate being spaced apart from the first support plate;

[0024] two adjustment rods, which are arranged at the two ends of the restraint belt respectively, and the other ends of the plurality of connecting belts are connected to the two ends of the two adjustment rods respectively, the two ends of the two adjustment rods being slidably arranged in the first arc-shaped recesses and the second arc-shaped recesses respectively;

[0025] a plurality of rollers, which are symmetrically arranged in pairs on both sides of the ball screw, and the plurality of connecting belts are slidably arranged on the outer sides of the plurality of rollers in one-to-one correspondence respectively;

[0026] Both ends of the ball screw are rotatably supported on the first support plate and the second support plate.

[0027] Preferably, the power source comprises:

[0028] A servo motor fixed on the second support plate;

[0029] A first synchronous pulley fixed on the power output end of the servo motor;

[0030] A second synchronous pulley fixed on one end of the ball screw;

[0031] A synchronous belt tensioned outside the first synchronous pulley and the second synchronous pulley.

[0032] Preferably, the damper comprises:

[0033] A second housing with a hollow structure, and the second housing is fixed on the nut;

[0034] A spring with one end fixed inside one end of the second housing;

[0035] A spring washer slidably arranged in the second housing, and the spring washer is arranged on the other end of the spring;

[0036] Wherein, one end of the plurality of connecting belts is fixed on the spring washer.

[0037] Preferably, the middle part of the restraint belt is a magic tape.

[0038] Preferably, the plurality of connecting belts are steel wires.

[0039] A control method of a motor type non-invasive blood circulation perfusion enhancement auxiliary system, using the motor type non-invasive blood circulation perfusion enhancement auxiliary system, comprising the following steps:

[0040] Step one, collect electrocardio signal and pulse signal;

[0041] Step two, when detecting electrocardio signal feature points and pulse signal feature points, start the servo motor of the pressing position to press;

[0042] If the thigh, the calf and the hip need to be pressed, the pressing start time of the calf is taken as the reference, the pressing start time of the thigh and the pressing start time of the hip are delayed in turn, and satisfy: T1+T2+T3≤T 总 ;

[0043] Wherein, T1 is the difference between the starting time of the pressure mechanism of the thigh and the starting time of the pressure mechanism of the calf, T2 is the difference between the starting time of the pressure mechanism of the hip and the starting time of the pressure mechanism of the thigh, T3 is the time of resetting the pressure mechanisms of the thigh, the calf and the hip, T 总 is a heartbeat cycle.

[0044] Preferably, the collection position of the electrocardiosignal is the wrist and the ankle, and the collection position of the pulse signal is the pressure application part.

[0045] Preferably, the electrocardiosignal feature point is obtained by using an adaptive electrocardiosignal feature wave detection algorithm, and the pulse signal feature point is obtained by using a derivative peak value detection algorithm.

[0046] The beneficial effects of the present application are:

[0047] (1) The motor type non-invasive blood circulation perfusion enhancement auxiliary system designed and developed by the present application controls the length of the restraint belt through the cooperation of the ball screw and the connecting belt, realizes the application or release of pressure to the limbs, and through the setting of the damper, compensates for the difference in the contraction amount of the connecting belt on the two sides of the restraint belt due to the different circumferences of the limbs, and at the same time, compensates for the uneven force on both ends due to the different contraction amounts, so that the restraint belt bound on the limbs is more evenly stressed.

[0048] (2) The motor type non-invasive blood circulation perfusion enhancement auxiliary system designed and developed by the present application has a servo motor as the power source, and the output is stable and the torque and speed are adjustable, so that the system can be adjusted according to the surface pressure of the user's limbs and physiological signals, the pressure is controllable, and precise pressure can be realized. The transmission mechanism is a combination of a ball screw and a synchronous belt module, which reduces the weight and makes the movement more stable and quieter.

[0049] (3) The control method of the motor type non-invasive blood circulation perfusion enhancement auxiliary system designed and developed by the present application provides different sequential pressure selection methods through the pressure mechanism in combination with the electrocardio and pulse physiological signals of the user, achieves different blood circulation perfusion effects, and has more application and use scenarios and is more portable. BRIEF DESCRIPTION OF DRAWINGS

[0050] Figure 1 is an assembly diagram of the motor type non-invasive blood circulation perfusion enhancement auxiliary system of the present application.

[0051] Figure 2 is a structural diagram of the pressure mechanism of the present application.

[0052] Figure 3 is a structural diagram of the bottom plate of the present application.

[0053] Figure 4The structure schematic diagram of the cover plate of the application.

[0054] Figure 5 The structure schematic diagram of the assembly side of the bottom plate and the cover plate of the application.

[0055] Figure 6 The structure schematic diagram of the other side of the assembly of the bottom plate and the cover plate of the application.

[0056] Figure 7 The structure schematic diagram of the cavity of the first shell of the assembly of the bottom plate of the application.

[0057] Figure 8 The structure schematic diagram of the assembly of the ball screw of the application.

[0058] Figure 9 The structure schematic diagram of the assembly of the slide rail and the slide block of the application.

[0059] Figure 10 The structure schematic diagram of the damper of the application.

[0060] Figure 11 The control method flow chart of the motor type non-invasive blood circulation perfusion enhancement auxiliary system of the application. DETAILED DESCRIPTION

[0061] The application will be further described in detail below, so that those skilled in the art can implement the application according to the description.

[0062] The motor type non-invasive blood circulation perfusion enhancement auxiliary system of the application adopts a modularized pressurizing mechanism design, can improve the local pressure precision, and the pressurizing mechanism can be sleeved on the outside of the hips, thighs or lower legs. The pressurizing mechanisms are relatively independent, simple to assemble and stable in motion. The pressure application position, pressure application sequence and pressure application time can be adjusted according to different pressure application requirements of the user, and the use scene and application range are more extensive. For example, the user may be affected by an uncontrollable factor, and the pressure treatment of the limbs may not be complete. The three positions of the lower leg, the thigh and the hip can be arranged and combined, and there are a total of 7 combination modes. In the use process, the user generally uses symmetrically. If the user needs, the user can choose to use the left side or the right side alone. According to the needs of the user, the side installation can be used, which meets the ergonomic design, can provide a comfortable posture and support, reduces the discomfort in the use process, and improves the use experience. However, the hip can only be used with two pressurizing mechanisms, so the use and application scene are more extensive, and different blood circulation perfusion effects can be achieved. The user can adjust the pressure holding time and the pressure application sequence of the device on the limbs according to the user's own needs, which is more personalized.

[0063] As Figure 2As shown, the pressing mechanism comprises a shell and a binding belt 130, and an adjustable surrounding ring is formed between the shell and the binding belt 130, thereby realizing the pressing of the limb.

[0064] The shell comprises a bottom plate 100, two cover plates 110 and a first outer shell 120, as shown in the figure. Figure 3 As shown, the bottom plate 100 is provided with a plurality of transverse positioning grooves 101 at both ends of the length, for fixing the two cover plates 110; the bottom plate 100 is symmetrically provided with a first adjusting groove 102 at both sides of the width, for the passing and adjusting of the binding belt; as shown in the figure. Figure 4 As shown, the two cover plates 110 are arc-shaped structures, and the cover plates 110 are provided with a lengthwise second adjusting groove 111; as shown in the figure. Figure 5 、 Figure 6 As shown, the two cover plates 110 are provided with positioning holes at both ends, and the two cover plates 110 are symmetrically and detachably arranged on one side of the bottom plate 100 by means of screws passing through the positioning holes and any position of the positioning grooves 101, thereby forming an arc-shaped structure between the bottom plate 100 and the two cover plates 110; the two cover plates 110 can be selected in different sizes, and the cooperation between the two cover plates 110 and the bottom plate 100 is changed to adapt to the size between different limb parts, which also saves materials and solves the problem of device adaptability from the mechanism level; the first outer shell 120 is arranged on the other side of the bottom plate 100, so that a containing cavity is formed between the first outer shell 120 and the bottom plate 100; the two ends of the binding belt 130 are sequentially arranged in the containing cavity after passing through the second adjusting groove 111 and the first adjusting groove 102, so that the binding belt 130 forms a surrounding ring with the two cover plates 110 and the bottom plate 100, and the pressing is realized by the contraction of the binding belt 130.

[0065] In this embodiment, the middle part of the binding belt 130 is detachably connected, which is convenient for disassembling the pressing mechanism.

[0066] As preferred, the middle part of the binding belt 130 is a magic tape, which can be respectively sleeved on the outside of the left and right thighs or the left and right calves when the thighs and the calves are pressed; and when the hips are pressed, two pressing mechanisms are symmetrically arranged on both sides of the hips, and the binding belts 130 of the two pressing mechanisms are connected with each other and are respectively wrapped around the front and back of the hips.

[0067] As shown in the figure, Figure 7 、 Figure 8 、 Figure 9As shown, in order to realize the contraction of the restraint band 130, two adjusting rods 131, a first support plate 141, a second support plate 142, a plurality of rollers 143, a power source, a ball screw 161, a plurality of dampers 170, a plurality of connecting belts (a first connecting belt 181 and a second connecting belt 182) are arranged in the accommodating cavity. The first support plate 141 and the second support plate 142 are symmetrically and spaced apart at two ends of the bottom plate 100. First arc-shaped grooves 202 are symmetrically arranged on the first support plate 141. The first arc-shaped grooves 202 extend from the two corners of the first support plate 141 close to the bottom plate 100 to the direction away from the bottom plate 100, and the two distal ends of the first arc-shaped grooves 202 are spaced apart. Second arc-shaped grooves are symmetrically arranged on the second support plate. The second arc-shaped grooves are correspondingly arranged with the first arc-shaped grooves 202. A stepped hole is arranged on the first support plate 141. An angular contact ball bearing 201 is arranged in the stepped hole. A through hole is arranged on the second support plate 142, and the through hole is correspondingly arranged with the stepped hole. The two adjusting rods 131 are respectively arranged at two ends of the restraint band 130, and the two ends of the two adjusting rods 131 are respectively correspondingly and slidably arranged in the first arc-shaped grooves 202 and the second arc-shaped grooves. The ball screw 161 is rotatably arranged between the inner hole of the angular contact ball bearing 201 and the through hole, and two nuts 163 with opposite rotation directions are arranged on the ball screw 161. When the ball screw 161 rotates, the two nuts 163 move towards or away from each other. The two nuts 163 are respectively spaced apart from the first support plate 141 and the second support plate 142 by a certain distance, and the distances are equal. The power source is fixed on the second support plate 142, and the power output end of the power source is connected with one end of the ball screw 161, for driving the ball screw 161 to rotate. The connecting pieces 162 are respectively and detachably arranged on the nuts 163. One end of the plurality of dampers 170 is symmetrically arranged on both sides of the connecting pieces 162 through the second connecting belts 182, and the other end is connected with the two ends of the two adjusting rods 131 through the first connecting belts 181. The first connecting belts 181 on the same side of the two ends of the restraint band 130 are arranged on both sides of the same nut 163, that is, the two corners on the upper side of the restraint band 130 are connected with one nut 163 through the first connecting belts 181, the dampers 170 and the second connecting belts 182, and the two corners on the lower side of the restraint band 130 are connected with another nut 163 through the first connecting belts 181, the dampers 170 and the second connecting belts 182. When the nut 163 moves, the restraint band 130 can be tightened or released. A plurality of rollers 143 are symmetrically arranged on both sides of the ball screw 161, and the plurality of first connecting belts 181 are respectively and correspondingly and slidably arranged on the outer sides of the plurality of rollers 143, for adjusting the route of the first connecting belts, so that the plurality of dampers 170 are parallel to the ball screw 161.

[0068] In the embodiment, the number of the rollers 143, the dampers 170, the first connecting belts 181 and the second connecting belts 182 is four, and each of them is arranged in pairs.

[0069] In the embodiment, the binding belt 130 is inelastic.

[0070] In the embodiment, the slide rail 191 is arranged on the bottom plate 100 and corresponds to the ball screw 161, two freely-slidable slide blocks 192 are arranged on the slide rail 191, and the two slide blocks 192 are fixedly connected with the two connecting pieces 162, so as to limit the rotation of the nut 163 and prevent the damage of the dampers 170.

[0071] The power source includes the servo motor 150, the first synchronous pulley 151, the second synchronous pulley 152 and the synchronous belt 153. The servo motor 150 is fixed on the second support plate 142. The first synchronous pulley 151 is fixed on the power output end of the servo motor 150. The second synchronous pulley 152 is fixed on one end of the ball screw 161. The synchronous belt 153 is tensioned outside the first synchronous pulley 151 and the second synchronous pulley 152, so that the servo motor drives the ball screw 161 to rotate.

[0072] As shown in Figure 10 The damper 170 includes the second housing 171, the spring washer 172 and the spring 173. The second housing 171 is a hollow structure, and the second connecting belt 182 is fixed on the second housing 171. One end of the spring 173 is fixed inside one end of the second housing 171. The spring washer 172 is slidably arranged in the second housing 171, and the spring washer 172 is arranged on the other end of the spring 173. One end of the first connecting belt 181 is fixed on the spring washer 172, that is, when the first connecting belt 181 is stressed, the spring 173 is compressed to deform, so as to adjust the elongation of the first and last ends of the limb.

[0073] In the embodiment, the main support parts of the pressing mechanism are obtained by 3D printing of resin material, so as to reduce the overall weight of the device.

[0074] In the embodiment, the first connecting belts 181 and the second connecting belts 182 are steel wire ropes.

[0075] The motor type noninvasive blood circulation perfusion enhancement auxiliary system developed by the application has a servo motor as a power source, stable output and adjustable torque and speed, can be adjusted according to the limb surface pressure and physiological signals of a user, has controllable pressure, can realize accurate pressure application, and has a ball screw module and a synchronous belt module in cooperation as a transmission mechanism, so that the weight is reduced, the system is more silent, the length of the inelastic binding belt is controlled by controlling the ball screw module and the steel wire rope in cooperation, pressure on the limbs is applied and released, the difference in the contraction amount of the binding belt at the two ends due to the different circumferences of the limbs is compensated by arranging a damper on the steel wire rope, and the uneven force at the two ends due to the different contraction amounts is also compensated, so that the force on the binding belt bound on the limbs is more uniform, the use scenarios are increased, and the product coverage and the adaptive group are wider.

[0076] As shown in Figure 11 The application also provides a control method of the motor type noninvasive blood circulation perfusion enhancement auxiliary system, and specifically includes the following steps:

[0077] Step one, collecting human physiological signals by a physiological signal acquisition module 1, specifically:

[0078] arranging an electrocardiosignal sampling device at the wrist and ankle to collect electrocardiosignals, and arranging a pulse sensor at a pressure application part needing pressure to collect pulse signals;

[0079] Moreover, the electrocardiosignals and pulse signals need to be pretreated after being obtained, and specifically include baseline drift, denoising, filtering and amplification.

[0080] Step two, obtaining a heartbeat period and determining a pressure application start time by a feature extraction and control module 2, specifically:

[0081] using an adaptive electrocardiosignal feature wave detection algorithm to obtain electrocardiosignal feature points from the electrocardiosignals, using a derivative peak value detection algorithm to obtain pulse wave peak feature points from the pulse signals, and submitting the two signals to a controller, because the electrocardiosignal is an electrical signal with fast propagation speed and almost zero delay, and the pulse signal is a pressure signal inside the arterial vessels of the limbs and has a certain delay in reaching different parts of the body, so when the electrocardiosignal feature points and the pulse signal feature points are detected at the same time, the servo motor of the pressure application position is started to apply pressure;

[0082] If the thigh, calf and hip all need to be pressed, the execution module 3 applies pressure from the distal end to the proximal end in sequence, that is, the pressure application start time of the calf (module 1) is taken as a reference, the pressure application start times of the thigh (module 2) and the hip (module 3) are sequentially delayed, and T1+T2+T3≤T 总 ;

[0083] Wherein, T1 is the difference between the starting time of the pressure mechanism of the thigh and the starting time of the pressure mechanism of the calf, T2 is the difference between the starting time of the pressure mechanism of the hip and the starting time of the pressure mechanism of the thigh, T3 is the time of resetting the pressure mechanism of the thigh, the calf and the hip, T 总 is a heartbeat cycle.

[0084] In the embodiment, the values of T1, T2 and T3 are generally 50-100 ms.

[0085] The interval period of applying pressure can be adjusted, and the minimum period is 2 heartbeat cycles.

[0086] The use process of the motor type non-invasive blood flow circulation perfusion enhancement auxiliary system and the control method thereof is as follows:

[0087] After the pressure mechanism is assembled, the calf mechanism, the thigh mechanism and the hip mechanism are sequentially worn on the parts to be pressurized, the body surface pressure sensors are pasted in the inelastic binding belts of the calf mechanism, the thigh mechanism and the hip mechanism respectively, the servo motor is adjusted to rotate so as to make the binding belt contract and pressurize the limbs, the pressure sensor values are read to adjust the pre-tightening force, and the pre-tightening force is generally 3-5 Kpa; the physiological signals of the experimental object are collected by the characteristic wave extraction and control module, and the characteristic signals are extracted, and the servo motor is started to pressurize the limbs according to the requirements.

[0088] The control method of the motor type non-invasive blood flow circulation perfusion enhancement auxiliary system developed by the application can collect human electrocardio and pulse signals, identify the characteristic points of human physiological signals, and multiple modules can be jointly used to complete the non-invasive blood perfusion of the human body in a heartbeat cycle.

[0089] Although the embodiments of the application have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, and can be fully applied to various fields suitable for the application, and other modifications can be easily realized by those skilled in the art, therefore, the application is not limited to specific details and the embodiments shown and described herein, and the general concept defined by the claims and the equivalent scope.

Claims

1. A motor-driven non-invasive blood circulation perfusion enhancement auxiliary system, characterized in that, include: A pressure-applying mechanism, detachably fitted onto the outside of the buttocks, thighs, or calves; the pressure-applying mechanism includes: a housing; a restraint strap disposed on one side of the housing and forming an encirclement with the housing, the restraint strap having a detachable connection in the middle; a ball screw rotatably disposed on the other side of the housing, one end of the ball screw being connected to a power source, the ball screw having two nuts with opposite directions of rotation; multiple dampers, arranged in pairs on both sides of the two nuts; and multiple connecting straps, one end of which is respectively connected to the... Multiple dampers are provided, with their other ends connected to the four corners of the restraint strap. The housing includes: a base plate with symmetrically arranged first adjustment grooves on both sides; two cover plates, which are arc-shaped and symmetrically and detachably arranged on one side of the base plate, each cover plate having a second adjustment groove; a first outer shell, which is arranged on the other side of the base plate, forming a receiving cavity between the first outer shell and the base plate; the damper includes: a second outer shell, which is hollow and fixed to a nut; a spring, one end of which is fixed to the... The inner side of one end of the second outer shell; a spring washer, which is slidably disposed inside the second outer shell, and the spring washer is disposed at the other end of the spring; wherein, the connecting straps on the same side of both ends of the restraint strap are disposed on both sides of the same nut, and the two ends of the restraint strap pass through the second adjustment groove and the first adjustment groove respectively and are disposed in the receiving cavity, so that the restraint strap forms an encircling ring between the two cover plates and the bottom plate, the ball screw, multiple connecting straps and multiple dampers are all disposed in the receiving cavity, and one end of the multiple connecting straps is fixed on the spring washer; the motor-driven non-invasive blood circulation perfusion enhancement auxiliary system also includes a control method for the motor-driven non-invasive blood circulation perfusion enhancement auxiliary system, specifically including the following steps: Step 1, collect electrocardiogram signals and pulse signals; Step 2, when the characteristic points of the electrocardiogram signal and the characteristic points of the pulse signal are detected, start the servo motor of the pressure application position to apply pressure; if the thigh, calf and buttock all need to be pressured, then based on the pressure application start time of the calf, the start time of the pressure application mechanism of the thigh and the pressure application mechanism of the buttock are delayed in sequence, and satisfying: ;in, This is the difference between the activation time of the thigh compression mechanism and the activation time of the calf compression mechanism. This represents the difference between the activation time of the pressure mechanism in the buttocks and the activation time of the pressure mechanism in the thighs. The time required for the compression mechanisms in the thighs, calves, and buttocks to reset. This refers to the heartbeat cycle.

2. The motor-driven non-invasive blood circulation perfusion enhancement auxiliary system as described in claim 1, characterized in that, The receiving cavity further includes: a first support plate, which is vertically disposed on the other side of the base plate, and the first support plate is symmetrically provided with a first arc-shaped groove; a second support plate, which is vertically disposed on the other side of the base plate, and the second support plate and the first support plate are symmetrically spaced apart, and the second support plate is symmetrically provided with a second arc-shaped groove; two adjusting rods, which are respectively disposed at both ends of the binding strap, and the two ends of the two adjusting rods are respectively connected to the other ends of multiple connecting straps, and the two ends of the two adjusting rods are slidably disposed in the first arc-shaped groove and the second arc-shaped groove; multiple rollers, which are symmetrically disposed in pairs on both sides of the ball screw, and the multiple connecting straps are respectively corresponding to and slidably disposed on the outside of the multiple rollers; wherein, both ends of the ball screw are rotatably supported on the first support plate and the second support plate.

3. The motor-driven non-invasive blood circulation perfusion enhancement auxiliary system as described in claim 2, characterized in that, The power source includes: a servo motor, which is fixed on the second support plate; a first synchronous pulley, which is fixed to the power output end of the servo motor; a second synchronous pulley, which is fixed to one end of the ball screw; and a synchronous belt, which is tensioned on the outside of the first and second synchronous pulleys.

4. The motor-driven non-invasive blood circulation perfusion enhancement auxiliary system as described in claim 3, characterized in that, The middle part of the restraint strap is Velcro.

5. The motor-driven non-invasive blood circulation perfusion enhancement auxiliary system as described in claim 4, characterized in that, The multiple connecting straps are steel wire ropes.

6. The motor-driven non-invasive blood circulation perfusion enhancement auxiliary system as described in claim 5, characterized in that, The electrocardiogram (ECG) signal is collected at the wrist and ankle, and the pulse signal is collected at the pressure point.

7. The motor-driven non-invasive blood circulation perfusion enhancement auxiliary system as described in claim 6, characterized in that, The ECG signal feature points are obtained by using an adaptive ECG signal feature wave detection algorithm, and the pulse signal feature points are obtained by using a derivative peak detection algorithm.

Citation Information

Patent Citations

  • Closed pneumatic type in-vitro positive pulsation and counter pulsation device for servo control and action

    CN102166157A

  • Portable external counterpulsation rehabilitation device and method based on electrocardiogram control

    CN109998886A