Lower limb rehabilitation training device for orthopedics department

Abstract

The invention discloses a novel medical instrument, and particularly relates to a lower limb rehabilitation training device for orthopedics department, which comprises a box body, a strip-shaped through hole is formed in the side surface of the box body, a first support rod is arranged in the through hole in a relatively sliding manner, the end part of the first support rod is connected with a first telescopic rod through a first hinge, and the end part of the first telescopic rod is connected with a second telescopic rod through a second hinge; the first telescopic rod is connected with a second telescopic rod through a second hinge, and the second telescopic rod is connected to the second supporting rod through a third hinge. Through a multi-stage hinge structure of the first telescopic rod and the second telescopic rod, the length of the device can be flexibly adjusted so as to meet the requirements of lower limb rehabilitation training of different patients. The device is provided with the supporting plate used for supporting the shin and the thigh of the patient, the supporting plate is connected with the bandage through the bandage hole, the lower limbs of the patient can be stably fixed, and displacement or accidents in the training process are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of orthopedic rehabilitation equipment, and in particular to a lower limb rehabilitation training device for orthopedics. Background Art

[0002] Lower limb rehabilitation training devices are widely used in the fields of postoperative rehabilitation treatment, sports injury repair and nerve injury recovery for orthopedic patients. Currently, most lower limb rehabilitation devices on the market have problems such as limited adjustment range, insufficient support stability and poor buffering protection, which makes it difficult to meet the diverse needs of different patients for angle adjustment, force control and safety during rehabilitation training. Therefore, developing a lower limb rehabilitation training device that can be flexibly adjusted, has stable support, excellent buffering performance and strong applicability has become a key research direction to improve the effect of rehabilitation treatment. Summary of the invention

[0003] In order to solve the above problems in the prior art, the present invention provides a lower limb rehabilitation training device for orthopedics to solve the current technical problems.

[0004] The technical solution adopted by the present invention to solve its technical problem is: The present invention provides a lower limb rehabilitation training device for orthopedics, comprising: a box body, a long strip through hole is opened on the side of the box body, a first support rod is relatively slidably arranged in the through hole, the end of the first support rod is connected to a first telescopic rod through a first hinge, the first telescopic rod is connected to a second telescopic rod through a second hinge, and the second telescopic rod is connected to the second support rod through a third hinge.

[0005] Preferably, the second support rod is connected to the box body through a connecting rod.

[0006] Preferably, the axes of rotation of the first hinge, the second hinge and the third hinge are parallel to the axis of the cylindrical first support rod.

[0007] Preferably, a first support plate for placing the patient's shins is connected to the first telescopic rod, and a first strap hole for connecting a strap is provided at an edge of the first support plate.

[0008] Preferably, the second telescopic rod is connected to a second support plate for placing the patient's thighs, and the edge of the second support plate is provided with a second strap hole for connecting a strap.

[0009] Preferably, a track is provided in the box body, a slider is provided on the track, a third telescopic rod is connected to the side wall of the box body, the third telescopic rod is connected to the outer shell of the buffer, and the piston rod of the buffer is connected to the slider.

[0010] Preferably, the buffer includes a first hydraulic cylinder, a first baffle is arranged in the middle of the first hydraulic cylinder, a plurality of narrow tubes for passing hydraulic oil are arranged on the first baffle, the first baffle divides the first hydraulic cylinder into a first chamber and a second chamber, a first piston is arranged in the first chamber, and a piston rod is connected to the first piston.

[0011] Preferably, a second piston is provided in the second chamber, a buffer spring is connected to the second piston, a fourth telescopic rod is connected to the buffer spring, the fourth telescopic rod is connected to the buffer housing, and a plurality of pressure relief holes are provided at the rear of the buffer housing.

[0012] Preferably, the first chamber is connected to a first conduit, which is connected to a first pressure amplifier, which is a round tube with a diameter much larger than that of the first conduit and closed at both ends, and a first magnet ring is provided on the first pressure amplifier, a first iron plate is adsorbed on the first magnet ring, a first spring is connected to the first iron plate and the first pressure amplifier, a second conduit is also connected to the first pressure amplifier, and the second conduit is connected to the second chamber, and a flexible pad is provided at the connection between the first magnet ring and the first iron plate to improve the sealing effect.

[0013] Preferably, the first chamber is connected to a third conduit, the third conduit is connected to a second pressure amplifier, the second pressure amplifier is a circular tube with a diameter much larger than the diameter of the third conduit and closed at both ends, the second pressure amplifier is provided with a second magnet ring, a second iron plate is adsorbed on the second magnet ring, a second spring is connected to the second iron plate and the second pressure amplifier, the second pressure amplifier is also connected to a fourth conduit, the fourth conduit is connected to the second chamber, a flexible pad is provided at the connection between the second magnet ring and the second iron plate to improve the sealing effect, and the first pressure amplifier and the second pressure amplifier are rotationally symmetrically arranged.

[0014] The beneficial effects of the present invention are: Flexible adjustment: Through the multi-stage hinged structure of the first telescopic rod and the second telescopic rod, the length of the device can be flexibly adjusted to meet the needs of lower limb rehabilitation training of different patients.

[0015] Stable support: The device is equipped with a support plate for supporting the patient's tibia and thigh, and the straps are connected through the strap holes to stably fix the patient's lower limbs to avoid displacement or accidents during training.

[0016] Buffer protection: The built-in buffer design provides good buffering performance through the combination of hydraulic pressure and spring, reducing the impact on the patient's joints and muscles during training, and improving safety and comfort.

[0017] Pressure regulation: The first and second pressure amplifiers are used to accurately adjust the hydraulic pressure threshold through the design of the magnet ring and the spring. When the pressure difference between the first chamber and the second chamber is too large, the iron plate will detach from the magnet ring to relieve pressure, which is safer and more reliable.

[0018] Smooth movement: The cooperation between the track and the slider, together with the push-pull action of the third telescopic rod, achieves smooth movement of the training device, providing a stable training environment for patients.

[0019] Safe and reliable: The design combining multi-stage hydraulic cylinders and springs not only improves the response speed of the system, but also provides automatic buffering and pressure release in abnormal situations to ensure the safety of patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 is a schematic structural diagram of a lower limb rehabilitation training device for orthopedics according to an embodiment of the present invention; Figure 2 is a schematic structural diagram of a lower limb rehabilitation training device for orthopedics according to an embodiment of the present invention; Figure 3 is a schematic structural diagram of a lower limb rehabilitation training device for orthopedics according to an embodiment of the present invention; Figure 4 is a schematic structural diagram of a lower limb rehabilitation training device for orthopedics according to an embodiment of the present invention; Figure 5 is a schematic structural diagram of a lower limb rehabilitation training device for orthopedics according to an embodiment of the present invention; Figure 6 is a structural schematic diagram of a partial structure of a lower limb rehabilitation training device for orthopedics according to an embodiment of the present invention; Figure 7 is a structural schematic diagram of a partial structure of a lower limb rehabilitation training device for orthopedics according to an embodiment of the present invention; Figure 8 is a structural schematic diagram of a partial structure of a lower limb rehabilitation training device for orthopedics according to an embodiment of the present invention; Fig. 9 is a structural schematic diagram of a partial structure of a lower limb rehabilitation training device for orthopedics according to an embodiment of the present invention; Fig.10 It is a structural schematic diagram of a partial structure of a lower limb rehabilitation training device for orthopedics according to an embodiment of the present invention. Description of reference numerals:

[0021] exist Figure 1-Figure 10In the embodiment, the box body 1; the third telescopic rod 2; the long through hole 3; the buffer 4; the first support rod 5; the first hinge 6; the first telescopic rod 7; the first support plate 8; the second hinge 9; the second telescopic rod 10; the second support plate 11; the third hinge 12; the connecting rod 13; the second support rod 14; the track 15; the slider 16; the piston rod 17; the first piston 18; the first conduit 19; the first pressure amplifier 20; the first magnet ring 21; the first iron plate 22; the first spring 23; the second conduit 24; the first baffle 25; the second piston 26; the fourth telescopic rod 27; the pressure relief hole 28; the buffer spring 29; the first hydraulic cylinder 30; the narrow tube 31; the fourth conduit 32; the second pressure amplifier 33; the second iron plate 34; the second spring 35; the third conduit 36; the second magnet ring 37. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The present invention provides a lower limb rehabilitation training device for orthopedics, comprising: a box body 1, a long strip through hole 3 is opened on the side of the box body 1, a first support rod 5 is relatively slidably arranged in the long strip through hole 3, the end of the first support rod 5 is connected to a first telescopic rod 7 through a first hinge 6, the first telescopic rod 7 is connected to a second telescopic rod 10 through a second hinge 9, the second telescopic rod 10 is connected to a second support rod 14 through a third hinge 12, and the second support rod 14 is connected to the box body 1 through a connecting rod 13. The box body 1 is a metal box body, the first support rod 5, the second support rod 14 and the connecting rod 13 are all metal rods, and the first telescopic rod 7, the second telescopic rod 10, the third telescopic rod 2 and the fourth telescopic rod 27 are all electric telescopic rods with a power-off self-locking function.

[0024] The axes of rotation of the first hinge 6 , the second hinge 9 and the third hinge 12 are all parallel to the axis of the cylindrical first support rod 5 .

[0025] The first telescopic rod 7 is connected to a first support plate 8 for placing the patient's shin, and the edge of the first support plate 8 is provided with a first strap hole for connecting a strap; the second telescopic rod 10 is connected to a second support plate 11 for placing the patient's thigh, and the edge of the second support plate 11 is provided with a second strap hole for connecting a strap. The first support plate 8 and the second support plate 11 are both plastic plates, and a layer of sponge pad is pasted on the inner surface of the plastic plates that are in contact with the patient's legs.

[0026] A track 15 is provided in the box body 1, a slider 16 is provided on the track 15, the first support rod 5 is fixed on the slider 16, a third telescopic rod 2 is connected to the side wall of the box body 1, the third telescopic rod 2 is connected to the outer shell of the buffer 4, and the piston rod 17 of the buffer 4 is connected to the slider 16.

[0027] The buffer 4 includes a first hydraulic cylinder 30, a first baffle 25 is arranged in the middle of the first hydraulic cylinder 30, a plurality of narrow tubes 31 for passing hydraulic oil are arranged on the first baffle 25, the first hydraulic cylinder 30 is divided into a first chamber and a second chamber by the first baffle 25, a first piston 18 is arranged in the first chamber, and a piston rod 17 is connected to the first piston 18. The hydraulic cylinder is a metal hydraulic cylinder, the first piston 18 and the second piston 26 are both metal pistons, and sealing rings are arranged on the edges, the first baffle 25 is a metal plate, and the narrow tube 31 is a metal circular hole, and its diameter is 1 / 100 of the inner diameter of the first hydraulic cylinder 30.

[0028] The second chamber is provided with a second piston 26, a buffer spring 29 is connected to the second piston 26, a fourth telescopic rod 27 is connected to the buffer spring 29, the fourth telescopic rod 27 is connected to the outer shell of the buffer 4, and a plurality of pressure relief holes 28 are provided at the rear of the outer shell of the buffer 4. The fourth telescopic rod 27 is used to adjust the expansion and contraction amount of the buffer spring 29, and then adjust the reset pressure of the second piston 26. The reset pressure can be set as needed, for example, the maximum pressure and the minimum pressure of the reset process are 100N and 90N respectively.

[0029] The first chamber is connected to a first conduit 19, which is connected to a first pressure amplifier 20. The first pressure amplifier 20 is a round tube with a diameter much larger than that of the first conduit 19 and closed at both ends. The first pressure amplifier 20 is provided with a first magnet ring 21, on which a first iron plate 22 is adsorbed. A first spring 23 is connected to the first iron plate 22 and the first pressure amplifier 20. The first pressure amplifier 20 is also connected to a second conduit 24, which is connected to the second chamber. A flexible pad is provided at the connection between the first magnet ring 21 and the first iron plate 22 to improve the sealing effect. The inner diameters of the first pressure amplifier 20 and the second pressure amplifier 33 are both 5 times the inner diameter of the first conduit 19. The first conduit 19, the second conduit 24, the third conduit 36 ​​and the fourth conduit 32 are four identical metal tubes, and their inner diameters are 15 times the inner diameter of the narrow tube 31. The first magnet ring 21 can use a permanent magnet or an electromagnet, and the edge is sealed and connected to the first pressure amplifier 20 to absorb the first iron plate 22. The first spring 23 is used to assist the first iron plate 22 in resetting when the first iron plate 22 is adsorbed on the first magnet ring 21. The elastic force of the first spring 23 is 2N, and the suction force between the first magnet ring 21 and the first iron plate 22 is 100N. In addition, the threshold value of the force at each position can be modified and set as needed.

[0030] The first chamber is connected to a third conduit 36, which is connected to a second pressure amplifier 33. The second pressure amplifier 33 is a round tube with a diameter much larger than that of the third conduit 36 ​​and closed at both ends. The second pressure amplifier 33 is provided with a second magnet ring 37, on which a second iron plate 34 is adsorbed, and a second spring 35 is connected to the second iron plate 34 and the second pressure amplifier 33. The second pressure amplifier 33 is also connected to a fourth conduit 32, which is connected to the second chamber. A flexible pad for improving the sealing effect is provided at the connection between the second magnet ring 37 and the second iron plate 34. The first pressure amplifier 20 and the second pressure amplifier 33 are rotationally symmetrically arranged. The second pressure amplifier 33 and its internal structure are exactly the same as the first amplifier, but the direction of the second amplifier is exactly opposite to that of the first amplifier. When in use, the space between the first piston 18 and the second piston 26 is filled with hydraulic oil, and the first conduit 19, the second conduit 24, the third conduit 36, the fourth conduit 32, the first pressure amplifier 20 and the second pressure amplifier 33 are also filled with hydraulic oil.

[0031] Through the multi-stage hinge structure of the first telescopic rod 7 and the second telescopic rod 10, the length of the device can be flexibly adjusted to meet the needs of lower limb rehabilitation training of different patients.

[0032] The device is equipped with a support plate for supporting the patient's tibia and thigh, and the straps are connected through the strap holes to stably fix the patient's lower limbs to avoid displacement or accidents during training.

[0033] The built-in buffer 4 design provides good buffering performance through a combination of hydraulics and springs, reducing the impact on the patient's joints and muscles during training, and improving safety and comfort.

[0034] The first and second pressure amplifiers 33 are used to accurately adjust the hydraulic pressure threshold through the design of the magnet ring and the spring. When the pressure difference between the first chamber and the second chamber is too large, the iron plate will detach from the magnet ring to relieve pressure, which is safer and more reliable.

[0035] The cooperation between the track 15 and the slider 16 and the push-pull action of the third telescopic rod 2 realizes the smooth movement of the training device and provides a stable training environment for the patient.

[0036] The design of combining multi-stage hydraulic cylinders with springs not only improves the response speed of the system, but also provides automatic buffering and pressure release in abnormal situations to ensure the safety of patients.

[0037] Finally, it should be noted that the above is only a preferred embodiment 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, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lower limb rehabilitation training device for orthopedics, comprising: The box body is characterized in that: a long strip through hole is opened on the side of the box body, a first support rod is relatively slidably arranged in the long strip through hole, the end of the first support rod is connected to the first telescopic rod through a first hinge, the first telescopic rod is connected to the second telescopic rod through a second hinge, and the second telescopic rod is connected to the second support rod through a third hinge.

2. The lower limb rehabilitation training device for orthopedics according to claim 1, characterized in that: The second support rod is connected to the box body through a connecting rod.

3. The lower limb rehabilitation training device for orthopedics according to claim 1, characterized in that: The axes of rotation of the first hinge, the second hinge and the third hinge are all parallel to the axis of the cylindrical first support rod.

4. The lower limb rehabilitation training device for orthopedics according to claim 1, characterized in that: The first telescopic rod is connected to a first support plate for placing the patient's shins, and an edge of the first support plate is provided with a first strap hole for connecting a strap.

5. The lower limb rehabilitation training device for orthopedics according to claim 1, characterized in that: The second telescopic rod is connected to a second support plate for placing the patient's thighs, and the edge of the second support plate is provided with a second strap hole for connecting a strap.

6. The lower limb rehabilitation training device for orthopedics according to claim 1, characterized in that: A track is arranged in the box body, a slider is arranged on the track, a third telescopic rod is connected to the side wall of the box body, the third telescopic rod is connected to the outer shell of the buffer, and the piston rod of the buffer is connected to the slider.

7. The lower limb rehabilitation training device for orthopedics according to claim 6, characterized in that: The buffer includes a first hydraulic cylinder, a first baffle is arranged in the middle of the first hydraulic cylinder, a plurality of narrow tubes for passing hydraulic oil are arranged on the first baffle, the first baffle divides the first hydraulic cylinder into a first chamber and a second chamber, a first piston is arranged in the first chamber, and a piston rod is connected to the first piston.

8. The lower limb rehabilitation training device for orthopedics according to claim 7, characterized in that: The second chamber is provided with a second piston, the second piston is connected to a buffer spring, the buffer spring is connected to a fourth telescopic rod, and the fourth telescopic rod is connected to the buffer housing.

9. The lower limb rehabilitation training device for orthopedics according to claim 7, characterized in that: The first chamber is connected to a first conduit, which is connected to a first pressure amplifier, which is provided with a first magnet ring, on which a first iron plate is adsorbed, and the first pressure amplifier is also connected to a second conduit, which is connected to a second chamber.

10. The lower limb rehabilitation training device for orthopedics according to claim 9, characterized in that: The first chamber is connected to a third conduit, which is connected to a second pressure amplifier. The second pressure amplifier is provided with a second magnet ring, on which a second iron plate is adsorbed. The second pressure amplifier is also connected to a fourth conduit, which is connected to the second chamber.

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