CN112933541B

CN112933541B - Thrombus prevention device

Info

Publication number: CN112933541B
Application number: CN202110416663.1A
Authority: CN
Inventors: 王勇; 汪金龙; 赵梦远; 刘郑; 丁厚全; 刘正士
Original assignee: Hefei University of Technology
Current assignee: Hefei University of Technology
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2024-05-17
Anticipated expiration: 2041-04-19
Also published as: CN112933541A

Abstract

The invention discloses a thrombus preventing device, which comprises a base; the rotary shaft supporting component is rotatably connected with the first end of the base at one end; the crank sliding block mechanism comprises a crank rotary shaft, a crank, a sliding or rotating piece and a connecting rod, wherein one end of the connecting rod is rotationally connected with one end of the crank, the other end of the connecting rod is rotationally connected with one end of the sliding or rotating piece far away from the base, the crank rotary shaft is rotationally arranged at the other end of the rotary shaft supporting part, the other end of the crank is fixedly connected with one end of the crank rotary shaft, and the sliding or rotating piece and the base form a moving pair or a high pair; a pedal which is arranged on one side of the connecting rod far away from the base; the first adjusting mechanism is arranged between the rotary shaft supporting part and the base. The thrombus preventing device can obviously activate the movement of muscles at all parts of the lower limbs of the human body to promote the blood flow, and has the characteristics of no interference with the normal state of muscles and pulses, adjustable form to adapt to different requirements and accordance with the movement rule of the ankle joints of the human body.

Description

Thrombus prevention device

Technical Field

The invention relates to the technical field of sports equipment, in particular to a thrombus prevention device.

Background

At present, the venous thromboembolism is a common complication after operation, serious people obviously influence the quality of life and even death, the prevention of the venous thrombosis in China is gradually paid attention nowadays, and the effective prevention can obviously reduce the occurrence rate of the venous thrombosis, thereby reducing the death rate. The main physical prevention methods commonly used in clinic at present are antithrombotic gradient pressure bands, intermittent inflation and pressurization, electrical stimulation of muscles and the like.

The improper use of the commercially available antithrombotic gradient pressure bands may cause skin irritation and rupture, leg edema, and may also produce a "tourniquet effect" that is prone to arterial ischemia or venous blood reflux. Some external pressure or electric stimulation instruments interfere with the original normal state of muscles or pulses of the human body and have different degrees of noise. The partial foot pump movement device has the problems that gait track adjustment is inconvenient and different requirements of different people cannot be well met.

Therefore, the thrombus prevention device which has reasonable structure and less interference on the state of the human body and can be adjusted to adapt to different demands of different people is especially important.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present invention aims to provide a thrombus prevention device capable of remarkably activating the movement of muscles around the lower limb of a human body to promote blood flow, and not interfering with the normal state of muscles and pulses, with adjustable morphology to adapt to different requirements, and conforming to the movement law of the ankle joint of the human body.

To achieve the above and other related objects, the present invention provides a thrombus prevention device comprising:

A base;

The rotary shaft supporting component is rotatably connected with the first end of the base at one end;

The crank sliding block mechanism comprises a crank rotary shaft, a crank, a sliding or rotating piece and a connecting rod, wherein one end of the connecting rod is rotationally connected with one end of the crank, the other end of the connecting rod is rotationally connected with one end of the sliding or rotating piece, which is far away from the base, the crank rotary shaft is rotationally arranged at the other end of the rotary shaft supporting part, the other end of the crank is fixedly connected with one end of the crank rotary shaft, and the sliding or rotating piece and the base form a moving pair or a high pair;

The pedal is arranged on one side, far away from the base, of the connecting rod;

The first adjusting mechanism is arranged between the rotary shaft supporting part and the base, and the distance between the crank rotary shaft and the base can be adjusted through the first adjusting mechanism.

the base comprises a base and a bottom plate positioned at one side of the base, and one end of the bottom plate is rotationally connected with the first end of the base;

The rotary shaft supporting component is arranged on the other side of the base, and one end of the rotary shaft supporting component is connected with the first end of the base;

the second adjusting mechanism is arranged between the base and the bottom plate, and the distance between the crank rotating shaft and the bottom plate can be adjusted through the second adjusting mechanism.

the rotary shaft supporting component is fixedly connected with the base;

The crank sliding block mechanism comprises a crank rotary shaft, a crank, a sliding or rotating piece and a connecting rod, wherein one end of the connecting rod is rotationally connected with one end of the crank, the other end of the connecting rod is rotationally connected with one end of the sliding or rotating piece, which is far away from the base, the crank rotary shaft is rotationally arranged on the rotary shaft supporting part, the other end of the crank is fixedly connected with one end of the crank rotary shaft, and the sliding or rotating piece and the base form a moving pair or a high pair;

In an alternative embodiment, the thrombus prevention device further comprises a first adjustment mechanism disposed between the swivel shaft support member and the base; one end of the rotary shaft supporting component is rotatably connected with the first end of the base, and the distance between the crank rotary shaft and the base can be adjusted through the first adjusting mechanism.

In an alternative embodiment, the first adjustment mechanism includes an electric push rod mechanism, a ball screw mechanism, a length adjustable rod mechanism, a support plate detent mechanism, or a support plate detent mechanism.

In an alternative embodiment, the second adjustment mechanism comprises an electric push rod mechanism, a ball screw mechanism, or a length adjustable rod mechanism.

In an alternative embodiment, the rotary shaft supporting part includes a case, a controller, and a driving part disposed in the case, and the crank rotary shaft is connected to the driving part.

In an alternative embodiment, the swivel shaft support member further includes a resistance member disposed within the housing.

In an alternative embodiment, the resistance component includes a friction assembly, a magnetically controlled resistance generator, or a flywheel.

In an alternative embodiment, the drive member acts as a resistance member.

In an alternative embodiment, the friction assembly comprises a friction plate and a friction plate seat which are matched with each other, the friction plate is mounted on the crank rotary shaft, and the friction plate seat is mounted at one end of the box body close to the crank rotary shaft; the magnetic control resistance generator comprises an aluminum disc flywheel and a permanent magnet assembly which are matched with each other, the aluminum disc flywheel is mounted on the crank rotary shaft, and the permanent magnet assembly is mounted at one end, close to the crank rotary shaft, of the box body.

In an alternative embodiment, the drive member comprises a motor, or a combination of a motor and a decelerator.

In an alternative embodiment, the sliding or rotating member comprises a slider or roller.

In an alternative embodiment, the thrombus prevention device further comprises a human-machine interaction device.

In an alternative embodiment, the length of the link and/or the length of the crank is adjustable.

The thrombus prevention device adopts the crank block mechanism, can better adapt to the movement law of lower limbs, can realize ankle pump movement, activates muscles at each part of the lower limbs so as to promote blood flow and reduce the coagulation of blood into emboli.

The slider of the crank slider mechanism of the thrombus prevention device can move in the sliding rail, and has good stability.

According to the thrombus preventing device, the distance between the crank rotating shaft and the base can be adjusted through the adjusting mechanism (the first adjusting mechanism), or the distance between the crank rotating shaft and the base plate can be adjusted through the bottom adjusting device (the second adjusting mechanism), meanwhile, the adjustment of the pedal height and the inclination angle can be realized through the adjustment of the length of the connecting rod and/or the length of the crank, people with different leg lengths can be well adapted to different using postures such as sitting postures and prone postures, and meanwhile, the thrombus preventing device accords with reasonable movement amplitudes and angles of lower limbs such as ankle joints, knee joints and hip joints of different human bodies.

The thrombus prevention device can cooperatively train on two sides, can drive one side to continuously move on the other side, realizes mutual assistance of feet, and can perform active prevention, passive prevention and assistance prevention training.

The thrombus preventing device has small interference to the original normal state of muscles or pulses of human bodies, is not easy to cause arterial ischemia or venous blood reflux, and has no obvious side effect.

Drawings

Fig. 1 is a schematic perspective view of a thrombus prevention device according to an embodiment of the present invention.

Fig. 2 is a side view of a thrombus prevention device according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view taken along the direction A-A in fig. 2.

Fig. 4 is a schematic perspective view of a base plate of a thrombus preventing device according to an embodiment of the present invention at a certain angle to a base.

Fig. 5 is a schematic view of a structure of a thrombus prevention device according to an embodiment of the present invention, in which a friction member is used as a resistance member.

Fig. 6 is a schematic diagram of a structure of a thrombus prevention device according to an embodiment of the present invention, in which a magnetic control resistance generator is used as a resistance member.

Fig. 7 is a schematic perspective view of another thrombus prevention device according to an embodiment of the present invention.

Fig. 8 is a schematic perspective view of another thrombus prevention device according to an embodiment of the present invention.

Fig. 9 is a schematic perspective view of a third thrombus prevention device according to an embodiment of the present invention.

Fig. 10 is a schematic perspective view of a fourth thrombus prevention device according to an embodiment of the present invention.

Fig. 11 is a schematic perspective view of a fifth thrombus prevention device according to an embodiment of the present invention.

Fig. 12 is a schematic perspective view of a sixth thrombus prevention device according to an embodiment of the present invention.

Description of element reference numerals

1. Base seat

2. Sliding rail

3. Height adjusting positioning groove

3' Height-adjusting positioning hole

4. Crank arm

5. Connecting rod

51. First rod body

52. Second rod body

6. Sliding block

7. Pedal

8. Box body

9. Crank rotary shaft

10. First adjusting mechanism

10' Electric push rod mechanism

101. Driving motor

102. Push rod

10' Ball screw mechanism

103. Driving motor or hand wheel

104. Screw rod

105. First mounting seat

106. Ball nut

107. Second support plate

10' "Length adjustable lever mechanism

108. Length-adjustable rod assembly

1081. First adjusting rod

1082. Second adjusting rod

1083. Fastening assembly

109. Second mounting seat

11. Man-machine interaction device

12. Bottom plate

121. Limiting notch

13. Second adjusting mechanism

131. Support bar

132. Connecting rod

14. Controller for controlling a power supply

15. Friction plate seat

16. Friction plate

17. Permanent magnet

18. Aluminum plate

19. Bolt and nut fastener

20. Driving part

21. Blocking plate

Detailed Description

Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.

It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the illustrations, not according to the number, shape and size of the components in actual implementation, and the form, number and proportion of each component in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.

Example 1

Referring to fig. 1-6, the present embodiment describes a thrombus prevention device capable of significantly activating the movement of muscles around the lower limb of a human body to promote blood flow, and not interfering with the normal state of muscles and pulses, and having an adjustable shape to adapt to different requirements and conform to the movement law of the ankle joint of the human body, the thrombus prevention device comprises a base, a rotating shaft supporting part, a crank sliding block mechanism, a pedal and adjusting mechanism (including a first adjusting mechanism 10 and/or a second adjusting mechanism 13). Fig. 1 is a schematic perspective view of a thrombus prevention device according to the present embodiment; fig. 2 is a side view of a thrombus prevention device provided in the present embodiment; FIG. 3 is a cross-sectional view taken along the line A-A in FIG. 2; fig. 4 is a schematic perspective view showing a structure of the base plate 12 and the base 1 of the thrombus preventing device according to the present embodiment; fig. 5 is a schematic view of a structure of a thrombus prevention device according to the present embodiment, in which a friction member is used as a resistance member; fig. 6 is a schematic view of a structure of a thrombus prevention device according to the present embodiment, in which a magnetic control resistance generator is used as a resistance member.

Referring to fig. 1-6, in the present embodiment, the base includes a bottom plate 12, a base 1, and a second adjusting mechanism 13, the bottom plate 12 is disposed on the bottom side of the base 1, the left end of the bottom plate 12 is rotatably connected with the left end of the base 1, the second adjusting mechanism 13 is disposed between the base 1 and the bottom plate 12, and the distance between the crank rotation shaft 9 and the bottom plate 12 can be adjusted by the second adjusting mechanism 13. Referring to fig. 1 to fig. 6, in a specific embodiment, the bottom plate 12 may be, for example, a rectangular frame structure, and a plurality of pairs of limiting notches 121 are disposed at the top ends of the side walls of two sides of the bottom plate 12 along the length direction at intervals; the second adjusting mechanism 13 comprises a pair of support rods 131 and a connecting rod 132 connected to the same ends of the pair of support rods 131, the connecting rod 132 sequentially penetrates through the pair of support rods 131 and then is erected on a pair of limiting notches 121 on two side walls of the bottom plate 12, the other ends of the pair of support rods 131 are respectively connected to the middle parts of the two side walls of the base 1 in a rotating manner, and the distance between the crank rotating shaft 9 and the bottom plate 12 is adjusted by manually adjusting the positions of the limiting notches 121 erected at the two ends of the connecting rod 132, and meanwhile, the inclination angle of the pedal is also changed. It should be noted that, in other embodiments, the second adjusting mechanism 13 may be an electric push rod mechanism similar to that shown in fig. 9, a ball screw mechanism similar to that shown in fig. 10, a length-adjustable rod mechanism similar to that shown in fig. 11, or a support plate positioning slot mechanism or a support plate positioning hole mechanism similar to that of the first adjusting mechanism described below, where the ball screw mechanism may be an electric ball screw mechanism or a manual ball screw mechanism. In other embodiments, the base may include only the base 1, that is, the second adjusting mechanism 13 may not be provided, and the distance between the crank shaft 9 and the base 1 may be adjusted by the first adjusting mechanism 10.

Referring to fig. 1-6, in this embodiment, the crank slider mechanism includes a crank rotating shaft 9, a crank 4, a sliding or rotating member, and a connecting rod 5, one end of the connecting rod 5 is rotatably connected with one end of the crank 4, the other end of the connecting rod 5 is rotatably connected with one end (i.e., the top end) of the sliding or rotating member, which is far away from the base, the crank rotating shaft 9 is rotatably mounted on the top end of the rotating shaft supporting member, the other end of the crank 4 is fixedly connected with one end of the crank rotating shaft 9, and the sliding or rotating member and the base form a moving pair or a high pair. Referring to fig. 1-6, in a specific embodiment, the sliding or rotating member includes two sliding blocks 6, the crank 4 includes two, the connecting rods 5 include two, one end of each connecting rod 5 is rotatably connected with one end of the crank 4 on the same side, the other end of each connecting rod 5 is rotatably connected with the top end of the sliding block 6 on the same side, the crank rotating shaft 9 is rotatably mounted on the top end of the rotating shaft supporting member, the other end of each crank 4 is fixedly connected with one end of the crank rotating shaft 9, a moving pair is formed between each sliding block 6 and a sliding rail 2 arranged on the base 1, and the sliding blocks 6 can move in the sliding rails 2 with good stability. It will be appreciated that in other embodiments, instead of the slider 6, a roller may be used as a sliding or rotating member, and the roller may form a high pair with the base 1, where the slide rail 2 is not required to be provided on the base 1.

Referring to fig. 1-6, in this embodiment, a pedal for stepping by feet is disposed on a side of the connecting rod 5 away from the base. As an example, the footrests comprise two, one for each side of each link 5 of a pair of links 5 remote from the base.

Referring to fig. 1-6, in the present embodiment, the bottom end of the rotating shaft supporting member is rotatably connected to the left end of the base through a revolute pair, the rotating shaft supporting member includes a case 8, a controller 14, and a driving member 20, the controller 14 and the driving member 20 are disposed in the case 8, the crank rotating shaft 9 is connected to the driving member 20, and the controller 14 is connected to the driving member 20. The drive member 20 may be, for example, a motor, or a combination of a motor and a decelerator, or a flywheel. In other embodiments, the controller 14 may be provided at other suitable locations of the thrombus prevention device.

Referring to fig. 1-6, in the present embodiment, the first adjusting mechanism 10 is disposed between the rotation shaft supporting member and the base 1 of the base, and the distance between the crank rotation shaft 9 and the base 1 of the base can be adjusted by the first adjusting mechanism 10. In a specific embodiment, the middle part of the base 1 is provided with a height adjusting positioning groove 3 along the length direction; the support plate structure comprises a first support plate, a top fixing plate and a bottom fixing plate, wherein the top fixing plate and the bottom fixing plate are hinged to two ends of the first support plate, the top fixing plate can be fixed to the middle of the bottom surface of the box body 8 of the rotary shaft support part in a welding mode or in a bolt connection mode, and the bottom fixing plate can be connected with the height adjusting positioning groove 3 on the base 1 through a bolt and nut fastener 19. The height adjusting positioning groove 3 and the supporting plate structure jointly form the first adjusting mechanism 10, and the angle between the box body 8 and the base 1 is adjusted by manually adjusting the installation position of the bottom fixing plate on the height adjusting positioning groove 3, so that the purposes of adjusting the distance between the crank rotating shaft 9 and the base 1 of the base and changing the inclination angle of the pedal are achieved. In other embodiments, the second adjusting mechanism 13 may be an electric push rod mechanism as shown in fig. 9, a ball screw mechanism as shown in fig. 10, or a length-adjustable rod mechanism as shown in fig. 11, where the ball screw mechanism may be an electric ball screw mechanism or a manual ball screw mechanism.

In other embodiments, the thrombus prevention device may include only the first adjustment mechanism 10 or only the second adjustment mechanism. Wherein, when the thrombus preventing device includes only the second adjusting structure, the bottom end of the rotation shaft supporting member is fixed to the first end (left end in fig. 1) of the base 1, that is, no rotation pair is provided between the bottom end of the rotation shaft supporting member and the first end of the base 1.

Referring to fig. 5 and 6, in this embodiment, the rotating shaft supporting member further includes a resistance member disposed in the case 8, and the resistance member includes a friction assembly, a magnetic control resistance generator, or a flywheel. As shown in fig. 5, the resistance component adopts a friction assembly, the friction assembly includes a friction plate 16 and a friction plate seat 15 that are matched with each other, the friction plate 16 is installed on the crank rotation shaft 9, the friction plate seat 15 is installed at one end of the box 8 near the crank rotation shaft 9, and the controller 14 is controlled by the man-machine interaction device 11 to be described later to screw or loosen the friction plate 16 and the friction plate seat 15 to adjust the movement resistance. As shown in fig. 6, the resistance component adopts a magnetic control resistance generator, the magnetic control resistance generator comprises an aluminum disc 18 flywheel and a permanent magnet 17 assembly which are matched with each other, the aluminum disc 18 flywheel is mounted on the crank rotary shaft 9, the permanent magnet 17 assembly is mounted at one end of the box body 8, which is close to the crank rotary shaft 9, the permanent magnet 17 and the aluminum disc 18 form a magnetic induction line between the aluminum disc 18 flywheel of the magnetic control resistance generator and the permanent magnet 17, so that eddy current is generated to form resistance, and the human-computer interaction device 11 is operated to control the controller 14 to adjust the distance between the aluminum disc 18 and the permanent magnet 17 to adjust the resistance.

It should be noted that, in other embodiments, the friction assembly or the magnetic resistance generator may not be specifically provided as the resistance member, and the driving member 20 may be directly used as the resistance member. Taking the driving part 20 of the motor or the combination of the motor and the speed reducer as an example, direct current not more than rated current of the motor can be input to the motor, so that the motor is in an energy consumption braking state and becomes a resistance source.

Referring to fig. 1-6, in the present embodiment, the length of the connecting rod 5 and/or the length of the crank 4 may be adjusted, so as to assist in adjusting the inclination angle of the pedal by adjusting the length of the connecting rod 5 and/or the crank 4. In a specific embodiment, the length of the connecting rod 5 is adjustable, the connecting rod 5 includes a first rod body 51 and a second rod body 52 that are connected to each other, the relative positions of the first rod body 51 and the second rod body 52 are adjustable and fixed by fastening bolts or locking knobs, and the length of the connecting rod 5 can be adjusted by adjusting the relative positions of the first rod body 51 and the second rod body 52. In a specific embodiment, the length adjustment of the crank 4 can be achieved by changing the crank with a different length specification.

In this embodiment, the crank may be a rotary disk.

Referring to fig. 1-6, in this embodiment, the thrombus preventing device further includes a man-machine interaction device 11, where the man-machine interaction device 11 may be disposed on the top surface of the case 8, and the man-machine interaction device 11 may be connected to the controller 14. As an example, the man-machine interaction device 11 may be a remote control or a touch screen.

When the thrombus preventing device of the embodiment is used, a user can take various postures such as sitting posture, prone posture or standing posture. The distance between the crank rotating shaft 9 and the base 1 can be adjusted through the first adjusting mechanism 10, and/or the distance between the crank rotating shaft 9 and the bottom plate 12 can be adjusted through the second adjusting mechanism 13, meanwhile, the adjustment of the pedal height and the inclination angle can be realized through the adjustment of the length of the connecting rod 5 and/or the length of the crank 4, the device can be well suitable for people with different leg lengths and different using postures, and simultaneously, the device accords with reasonable movement amplitude and angle of lower limbs such as ankle joints, knee joints, hip joints and the like of different human bodies

The thrombus prevention device of this embodiment may include three training modes, which are a passive prevention training mode, a booster prevention training mode, and an active prevention training mode, respectively.

When in passive preventive training, the power sources are all from the driving part 20, the feet are supported on the pedals of the connecting rod 5, the connecting rod 5 drives the lower limbs to do rotary motion, the driving part 20 drives the crank 4 to drive the crank slider mechanism to move, the driving part 20 can be a motor or a combination part of the motor and a speed reducer, and when the man-machine interaction device 11 is operated, the controller 14 receives signals to control the motor rotation speed to realize graded adjustment.

During the power-assisted preventive training, between the passive preventive training and the active preventive training, the power source is partially from the driving part 20 and partially from the lower limb of the human body, the human-computer interaction device 11 is operated to enable the controller 14 to control the driving part 20 to be converted into a power-assisted preventive training mode, and an intelligent sensing system (comprising a sensor and a control circuit) of the controller 14 is started to cooperate with the lower limb of the human body to complete the power-assisted training so as to activate the lower limb muscles and promote blood flow.

When the human lower limb is used as a power source for active prevention training, the crank block mechanism is driven to move, the controller 14 is controlled by adjusting the man-machine interaction device 11 to set the training resistance, and the resistance component can be a motor or a combination component of the motor and a speed reducer, a friction component, a magnetic control resistance generator and other devices. When the motor or the combination part of the motor and the speed reducer is used as a resistance part, direct current which is not more than rated current of the motor is input to the motor, so that the motor is in an energy consumption braking state and becomes a resistance source; as shown in fig. 5, the friction plate seat 15 and the friction plate 16 form the resistance component, and the controller 14 is controlled to screw or loosen the friction plate 16 and the friction plate seat 15 by operating the man-machine interaction device 11 to adjust the movement resistance; as shown in fig. 6, the permanent magnet 17 and the aluminum disc 18 form the aluminum disc 18 flywheel of the magnetic control resistance generator to cut the magnetic induction lines between the permanent magnets 17 so as to generate eddy current forming resistance, and the man-machine interaction device 11 is operated to control the controller 14 to adjust the distance between the aluminum disc 18 and the permanent magnet 17 so as to adjust the resistance. The resistance with different magnitudes can activate the muscles of the lower limbs of the human body to different degrees, and the muscles can move in a grading manner so as to promote blood circulation.

Example two

Fig. 7 and 8 show another thrombus prevention device. The difference from the thrombus preventing device of the first embodiment is that the height-adjusting and positioning grooves 3 on the base 1 of the first embodiment are replaced with a plurality of height-adjusting and positioning holes 3' provided at intervals along the longitudinal direction of the base 1, and the other structures are similar, so that the description will not be repeated. In this embodiment, the supporting plate structure also includes a first supporting plate, and a top fixing plate and a bottom fixing plate hinged to two ends of the first supporting plate, where the top fixing plate may be fixed to the middle of the bottom surface of the box 8 of the supporting component of the rotating shaft, for example, by adopting a welding manner or a bolting manner, and any height adjusting positioning hole 3' on the bottom fixing plate and the base 1 are connected by using a bolt-nut fastener 19, where the height adjusting positioning hole 3' and the supporting plate structure together form a supporting plate positioning hole mechanism as the first adjusting mechanism 10, and the distance between the crank rotating shaft 9 and the base 1 of the base is adjusted by installing the bottom fixing plate at different height adjusting positioning holes 3 '.

Example III

Fig. 9 shows a third thrombus prevention device of the present invention. The difference from the thrombus prevention device of the first embodiment is that the electric putter mechanism 10' is used instead of the first adjusting mechanism 10 of the first embodiment, and the other structures are substantially the same, so that the description will not be repeated.

As shown in fig. 9, in this embodiment, the electric push rod mechanism 10' includes a driving motor 101 and a push rod 102, the driving motor 101 may be mounted on a surface of the base 1 near the right end, the push rod 102 is mounted on the driving motor 101 in an inclined manner, and a free end of the push rod 102 is mounted in a middle portion of a bottom surface of the case 8, so that the angle between the case 8 and the base 1 may be adjusted by pushing the push rod 102 by the driving motor 101 to move, so as to achieve the purposes of adjusting the distance between the crank rotation shaft 9 and the base 1 of the base and changing the inclination angle of the pedal.

Example IV

Fig. 10 shows a fourth thrombus prevention device of the present invention. The difference from the thrombus preventing device of the first embodiment is that the ball screw mechanism 10″ is used instead of the first adjustment mechanism 10 of the first embodiment, and the other structures are substantially the same, so that the description thereof will not be repeated.

As shown in fig. 10, in this embodiment, the ball screw mechanism 10″ includes a driving motor or hand wheel 103, a screw 104, a ball nut 106, a first mounting seat 105 and a second support plate 107, where the first mounting seat 105 is mounted in the middle of the base 1 and is disposed along the length direction of the base 1, the screw 104 is rotatably mounted on the first mounting seat 105, and the screw 104 is also disposed along the length direction of the base 1, the ball nut 106 is sleeved on the screw 104, one end of the second support plate 107 is hinged to the top end of the ball nut 106, the other end of the second support plate 107 is hinged to the middle of the bottom surface of the box 8, the driving motor or hand wheel 103 is mounted on the base 1, the output shaft of the driving motor or hand wheel 103 is in transmission connection with the screw 104, the driving motor or hand wheel 103 can drive the screw 104 to rotate, the rotation of the screw 104 can change the position of the ball nut 106 on the screw 104, the position of the ball nut 106 changes the angle between the adjustable box 8 and the base 1, so as to achieve the purpose of adjusting the angle between the crank shaft 9 and the base 1, and the required height of the base is not to be changed by adopting the adjusting the angle of the positioning mechanism 3', or the positioning hole is set up on the base 3.

Example five

Fig. 11 shows a fourth thrombus prevention device of the present invention. The difference from the thrombus preventing device of the first embodiment is that the length-adjustable lever mechanism 10' "is used in place of the first adjustment mechanism 10 of the first embodiment, and the other structures are substantially the same, so that the description will not be repeated.

As shown in fig. 11, in the present embodiment, the length-adjustable lever mechanism 10' "includes a length-adjustable lever assembly 108 and a second mount 109, the length-adjustable lever assembly 108 including a first adjustment lever 1081 and a second adjustment lever 1082 and a fastening assembly 1083; the second mounting seat 109 is fixedly mounted on the surface of the base 1 near the right end, one end of the first adjusting rod 1081 far away from the second adjusting rod 1082 forms a revolute pair with the middle part of the bottom surface of the box 8, one end of the second adjusting rod 1082 far away from the first adjusting rod 1081 forms a revolute pair with the second mounting seat 109, the first adjusting rod 1081 and the second adjusting rod 1082 are partially overlapped and are provided with a hole and groove structure, the length of the overlapped part of the first adjusting rod 1081 and the second adjusting rod 1082 can be conveniently adjusted through the hole and groove structure of the first adjusting rod 1081 and the second adjusting rod 1082 and can be fixed through a fastening assembly 1083 (such as a locking knob or a bolt-nut assembly), so that the length of the length-adjustable rod assembly 108 is changed, the angle between the adjustable box 8 and the base 1 is changed, and the purposes of adjusting the distance between the crank rotating shaft 9 and the base 1 of the base and changing the inclination angle of the pedal are achieved.

Example six

Fig. 12 shows a fifth thrombus prevention device of the present invention. The difference from the thrombus preventing device according to the first embodiment is that the first adjusting mechanism 10 is not provided, the housing 8 of the rotation shaft supporting member is fixedly connected to the base 1, and the other structures are substantially the same, so that the description thereof will not be repeated. Specifically, the box body 8 of the rotating shaft supporting component and the base 1 can be fixedly connected through a wedge-shaped plugging plate, so that a certain included angle is formed between the box body 8 of the rotating shaft supporting component and the base 1.

In summary, the thrombus prevention device provided by the invention adopts the crank sliding block mechanism, can be well adapted to the movement law of lower limbs, can realize ankle pump movement, activates muscles of the lower limbs so as to promote blood flow, and reduces blood coagulation to form emboli. The slider of the crank slider mechanism of the thrombus prevention device can move in the sliding rail, and has good stability. According to the thrombus preventing device, the distance between the crank rotating shaft and the base can be adjusted through the adjusting mechanism (the first adjusting mechanism), or the distance between the crank rotating shaft and the base plate can be adjusted through the bottom adjusting device (the second adjusting mechanism), meanwhile, the adjustment of the pedal height and the inclination angle can be realized through the adjustment of the length of the connecting rod and/or the length of the crank, people with different leg lengths can be well adapted to different using postures such as sitting postures and prone postures, and meanwhile, the thrombus preventing device accords with reasonable movement amplitudes and angles of lower limbs such as ankle joints, knee joints and hip joints of different human bodies. The thrombus prevention device can cooperatively train on two sides, can drive one side to continuously move on the other side, realizes mutual assistance of feet, and can perform active prevention, passive prevention and assistance prevention training. The thrombus preventing device has small interference to the original normal state of muscles or pulses of human bodies, is not easy to cause arterial ischemia or venous blood reflux, and has no obvious side effect.

The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

In the description herein, numerous specific details are provided, such as examples of components and/or methods, to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that an embodiment of the invention can be practiced without one or more of the specific details, or with other apparatus, systems, components, methods, components, materials, parts, and so forth. In other instances, well-known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the invention.

Reference throughout this specification to "one embodiment," "an embodiment," or "a particular embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment, and not necessarily all embodiments, of the present invention. Thus, the appearances of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics of any specific embodiment of the present invention may be combined in any suitable manner with one or more other embodiments. It will be appreciated that other variations and modifications of the embodiments of the invention described and illustrated herein are possible in light of the teachings herein and are to be considered as part of the spirit and scope of the invention.

It will also be appreciated that one or more of the elements shown in the figures may also be implemented in a more separated or integrated manner, or even removed because of inoperability in certain circumstances or provided because it may be useful depending on the particular application.

In addition, any labeled arrows in the drawings/figures should be considered only as exemplary, and not limiting, unless otherwise specifically indicated. Furthermore, the term "or" as used herein is generally intended to mean "and/or" unless specified otherwise. Combinations of parts or steps will also be considered as being noted where terminology is foreseen as rendering the ability to separate or combine is unclear.

As used in the description herein and throughout the claims that follow, unless otherwise indicated, "a", "an", and "the" include plural references. Also, as used in the description herein and throughout the claims that follow, unless otherwise indicated, the meaning of "in …" includes "in …" and "on …".

The above description of illustrated embodiments of the invention, including what is described in the abstract, is not intended to be exhaustive or to limit the invention to the precise forms disclosed herein. Although specific embodiments of, and examples for, the invention are described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the present invention, as those skilled in the relevant art will recognize and appreciate. As noted, these modifications can be made to the present invention in light of the foregoing description of illustrated embodiments of the present invention and are to be included within the spirit and scope of the present invention.

The systems and methods have been described herein in general terms as being helpful in understanding the details of the present invention. Furthermore, various specific details have been set forth in order to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that an embodiment of the invention can be practiced without one or more of the specific details, or with other apparatus, systems, assemblies, methods, components, materials, parts, and/or the like. In other instances, well-known structures, materials, and/or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the invention.

Thus, although the invention has been described herein with reference to particular embodiments thereof, a latitude of modification, various changes and substitutions are intended in the foregoing disclosures, and it will be appreciated that in some instances some features of the invention will be employed without a corresponding use of other features without departing from the scope and spirit of the invention as set forth. Therefore, many modifications may be made to adapt a particular situation or material to the essential scope and spirit of the present invention. It is intended that the invention not be limited to the particular terms used in following claims and/or to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Accordingly, the scope of the invention should be determined only by the following claims.

Claims

1. A thrombus prevention device, comprising:

A base;

The first adjusting mechanism is arranged between the rotary shaft supporting part and the base, and the distance between the crank rotary shaft and the base can be adjusted through the first adjusting mechanism;

The length of the connecting rod and the length of the crank are adjustable;

The connecting rod comprises a first rod body and a second rod body which are connected with each other, the relative positions of the first rod body and the second rod body are adjustable, and the length of the connecting rod is adjusted by adjusting the relative positions of the first rod body and the second rod body and then fixing.

2. A thrombus prevention device, comprising:

The rotary shaft supporting component is arranged on the other side of the base, one end of the rotary shaft supporting component is connected with the first end of the base, or the rotary shaft supporting component is fixedly connected with the base;

the second adjusting mechanism is arranged between the base and the bottom plate, and the distance between the crank rotating shaft and the bottom plate can be adjusted through the second adjusting mechanism;

The length of the connecting rod and the length of the crank are adjustable;

3. The thrombus prevention device of claim 2, further comprising a first adjustment mechanism disposed between the swivel shaft support member and the base; one end of the rotary shaft supporting component is rotatably connected with the first end of the base, and the distance between the crank rotary shaft and the base can be adjusted through the first adjusting mechanism.

4. A thrombus prevention device as in any one of claims 1-3 wherein the swivel shaft support member comprises a housing, a controller and a drive member disposed within the housing, the crank swivel shaft being connected to the drive member.

5. The thrombus prevention device of claim 4, wherein said swivel shaft support member further comprises a resistance member disposed within said housing, said resistance member comprising a friction assembly, a magnetically controlled resistance generator, or a flywheel.

6. The thrombus prevention device of claim 4 wherein the drive member acts as a resistance member.

7. A thrombus prevention device as in claim 1 or 3 wherein the first adjustment mechanism comprises an electric push rod mechanism, a ball screw mechanism or a length adjustable rod mechanism, a support plate detent mechanism or a support plate detent hole mechanism.

8. The thrombus prevention device of claim 2, wherein the second adjustment mechanism comprises an electric push rod mechanism, a ball screw mechanism, a length adjustable rod mechanism, a support plate detent mechanism, or a support plate detent mechanism.

9. A thrombus prevention device as in any one of claims 1-3 wherein the sliding or rotating member comprises a slider or roller.