Postoperative rehabilitation training auxiliary device

Abstract

The invention discloses a postoperative rehabilitation training auxiliary device, and belongs to the technical field of rehabilitation equipment, the postoperative rehabilitation training auxiliary device comprises a base and a driving part, the base is provided with a rehabilitation frame used for adapting to thighs and shanks of a patient, the rehabilitation frame is driven by the driving part to bend so as to drive the thighs and the shanks to move correspondingly, and the base is further provided with an adjusting part; the adjusting piece can establish or disconnect transmission between the rehabilitation frame and the driving piece; according to the postoperative rehabilitation training auxiliary device provided by the invention, the adjusting part is arranged between the driving part and the rehabilitation frame, so that the driving part and the rehabilitation frame can be connected or disconnected by adjusting the adjusting part during actual use, and the rehabilitation frame can be bent automatically or manually; therefore, the patient can conveniently select active movement or passive movement according to the recovery condition of the patient so as to achieve the optimal recovery effect.

Description

Technical Field

[0001] The invention relates to the technical field of rehabilitation equipment, and in particular discloses a postoperative rehabilitation training auxiliary device. Background Art

[0002] Postoperative rehabilitation is a very important part after surgical treatment. It can promote wound healing, restore some body functions and prevent complications. Rehabilitation training devices play an important role in postoperative rehabilitation. Among them, the lower limb joint rehabilitation device is a device used to help patients restore the function of the lower limb joints. It mainly drives the bracket to bend through the driving part, thereby driving the patient's leg movement to achieve leg bending and straightening.

[0003] For example, the patent with announcement number CN114129395B, with announcement date of 2024-03-12, discloses a lower limb joint rehabilitation trainer, which includes: a base; a pair of leg brackets arranged opposite to each other, the pair of leg brackets are spaced to form a leg placement area; and the pair of leg brackets are rotatably connected to the base; and a driving member; at least one leg bracket includes: a first horizontal connecting rod and a second horizontal connecting rod arranged in parallel with the base: the base, the first horizontal connecting rod and the second horizontal connecting rod are arranged in sequence from bottom to top; a thigh rod, a first rotating rod, and a second rotating rod are arranged in parallel in sequence along the length direction of the first horizontal connecting rod: the thigh rod is rotatably connected to the first horizontal connecting rod and the second horizontal connecting rod; the second rotating rod is rotatably connected to the base and the first horizontal connecting rod. Compared with the prior art, the rehabilitation trainer and the patient's legs are not misaligned, creating a comfortable use experience for the patient, and also providing convenience for the storage and use process.

[0004] The disadvantage of existing lower limb joint rehabilitation training auxiliary devices, including the above-mentioned patent, is that they completely rely on the driving member to drive the rehabilitation frame to move, thereby driving the limbs to flex and extend. However, since passive exercise does not require the patient to actively use muscles, it will not significantly enhance muscle strength, which may delay strength recovery. Summary of the invention

[0005] The purpose of the present invention is to provide a postoperative rehabilitation training auxiliary device capable of both passive rehabilitation training and active rehabilitation training.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A postoperative rehabilitation training auxiliary device includes a base and a driving member. A rehabilitation frame for adapting to the patient's thigh and calf is installed on the base. The rehabilitation frame is driven by the driving member to bend to drive the thigh and calf to move accordingly. An adjusting member is also installed on the base, and the adjusting member can establish or disconnect transmission between the rehabilitation frame and the driving member.

[0008] The above-mentioned auxiliary device, the rehabilitation frame includes a first bracket, a second bracket and a bending part, the first bracket is slidably connected to the base, the second bracket is fixedly connected to the base, and the bending part is installed on the upper ends of the first bracket and the second bracket.

[0009] The auxiliary device, the first bracket and the second bracket are both telescopic structures.

[0010] The auxiliary device mentioned above comprises a driving member which includes a screw rod rotatably mounted on the base, a sleeve rod being threadedly connected to the outside of the screw rod, the sleeve rod being slidably connected to the base, and the screw rod rotating drives the sleeve rod to move axially along the screw rod, and the sleeve rod is connected to the first bracket through an adjusting member.

[0011] The above-mentioned auxiliary device has a sleeve rod whose length is greater than the length of the sliding stroke of the first bracket, and a piston chamber is axially opened in the sleeve rod. The adjusting member includes a first piston block dynamically sealed and installed in the piston chamber. A piston rod is fixedly connected to the first piston block. The piston rod is transmission-connected to the first bracket. The piston chamber is connected to the external environment through a small hole. A sealing member for sealing the small hole is also provided on the sleeve rod.

[0012] The auxiliary device has an electric-controlled valve in the small hole, and a controller is installed on the base, and the controller controls the opening and closing of the electric-controlled valve.

[0013] The above auxiliary device, the electrically controlled valve is a proportional solenoid valve.

[0014] The auxiliary device has a sliding rod fixedly connected to the first bracket, the sliding rod extends into the interior of the piston rod, a buffer assembly is provided on one end of the inner wall of the piston rod close to the first piston block, and a connecting assembly for connecting the sliding rod and the piston rod is also provided on the first bracket.

[0015] The auxiliary device has a guide ring fixedly connected to the inner wall of the piston cavity away from the small hole. The guide ring is sleeved on the end of the piston rod away from the first piston block, and the guide ring is fixedly connected to the inner wall of the piston cavity. A fan-shaped channel is opened on the guide ring.

[0016] The above-mentioned auxiliary device, the connecting assembly includes a plug-in column slidably installed in the sliding rod, the plug-in column slides along the radial direction of the sliding rod, a spring is arranged in the sliding rod for keeping the plug-in column in the sliding rod, a plug-in hole matching the plug-in column is opened on the inner wall of the piston rod, an adjusting rod is slidably installed on the first bracket, a guide column is fixed on the plug-in column, the guide column extends toward the central axis of the sliding rod, one end of the adjusting rod is provided with a guide inclined surface matching the plug-in column, and a screw rod is screwed on the first bracket to drive the adjusting rod to move axially along the sliding rod, and the adjusting rod is rotationally connected to the screw rod.

[0017] In the above technical scheme, the postoperative rehabilitation training auxiliary device provided by the present invention, by setting an adjustment member between the driving member and the rehabilitation frame, the driving member and the rehabilitation frame can be connected or disconnected by adjusting the adjustment member during actual use, so that the rehabilitation frame can be bent automatically or manually, thereby facilitating the patient to choose active exercise or passive exercise according to his or her own recovery situation to achieve the best rehabilitation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the structure provided by an embodiment of the present invention;

[0020] Figure 2 A cross-sectional view of a front view provided by an embodiment of the present invention;

[0021] Figure 3 A cross-sectional view of a top view provided for an embodiment of the present invention;

[0022] Figure 4 A side view provided for an embodiment of the present invention;

[0023] Figure 5 The embodiment of the present invention provides Figure 2 The enlarged schematic diagram at A in the middle;

[0024] Figure 6 An enlarged schematic diagram of a cross-sectional view of a piston rod provided in an embodiment of the present invention;

[0025] Figure 7 A schematic diagram of the structure of a guide ring provided in an embodiment of the present invention;

[0026] Figure 8 The embodiment of the present invention provides Figure 2 Enlarged schematic diagram of point B in the middle.

[0027] Description of reference numerals:

[0028] 1. Base; 11. Screw rod; 12. Sleeve rod; 121. Piston chamber; 122. Small hole; 123. Proportional solenoid valve; 124. Guide ring; 13. Motor; 14. Controller; 2. Rehabilitation frame; 21. First bracket;

[0029] 211, support frame; 212, fixing rod; 22, second bracket; 23, bending part; 231, first rod;

[0030] 232, second rod; 24, leg pad; 25, foot rest; 26, strap; 3, adjusting member; 31, first piston block; 32, piston rod; 321, plug-in hole; 4, sliding rod; 41, second piston block; 5, connecting assembly; 51, plug-in column; 511, guide column; 52, spring; 53, adjusting rod; 531, guide ramp; 54, screw. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] In the description of the present invention, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figure 1-Figure 8 As shown, an embodiment of the present invention provides a postoperative rehabilitation training auxiliary device, including a base 1 and a driving member. A rehabilitation frame 2 for adapting to the patient's thigh and calf is installed on the base 1. The rehabilitation frame 2 is driven by the driving member to bend to drive the thigh and calf to move accordingly. An adjusting member 3 is also installed on the base 1. The adjusting member 3 can establish or disconnect transmission between the rehabilitation frame 2 and the driving member so that the rehabilitation frame 2 can be bent automatically or manually.

[0034] Specifically, the rehabilitation training device is used for rehabilitation training of lower limb joints, and the base 1 is its supporting structure. A rehabilitation frame 2 is installed on the base 1, and the rehabilitation frame 2 can be bent when driven, and a driving member and an adjusting member 3 are also installed on the base 1, wherein the adjusting member 3 is used to establish transmission between the rehabilitation frame 2 and the driving member. When the adjusting member 3 connects the driving member with the rehabilitation frame 2, the driving member can drive the rehabilitation frame 2 to bend or straighten, thereby driving the patient's leg movement to achieve the purpose of rehabilitation; optionally, the driving member is an electric push rod (not shown in the figure) installed on the base 1, and the adjusting member 3 is a bolt, which connects the output end of the electric push rod with the rehabilitation frame 2, so that the rehabilitation frame 2 can be driven to bend or straighten by extending and shortening the electric push rod. This is a prior art and can be directly applied without further explanation.

[0035] In actual use, according to the patient's recovery condition, such as insufficient leg strength in the early stage of recovery, the end of the electric push rod can be connected to the corresponding through hole between the rehabilitation frame 2 through the bolt, so that the rehabilitation frame 2 can automatically drive the patient's legs to slowly bend and straighten, thereby achieving the purpose of rehabilitation training. When the patient's legs have a certain strength, the bolt is removed, the transmission relationship between the electric push rod and the rehabilitation frame 2 is disconnected, and the strength of the patient's legs is used to drive the rehabilitation frame 2 to bend and straighten. At this time, the rehabilitation frame 2 only provides a certain support for the patient's legs.

[0036] The rehabilitation training auxiliary device provided in the embodiment of the present invention provides an adjustment member 3 between the driving member and the rehabilitation frame 2. In actual use, the driving member and the rehabilitation frame 2 can be connected or disconnected by adjusting the adjustment member 3, so that the rehabilitation frame 2 can be bent automatically or manually, thereby facilitating the patient to choose active exercise or passive exercise according to his or her own recovery situation to achieve the best rehabilitation effect.

[0037] Furthermore, the rehabilitation frame 2 includes a first bracket 21 , a second bracket 22 and a bending portion 23 , the first bracket 21 is slidably connected to the base 1 , the second bracket 22 is fixedly connected to the base 1 , and the bending portion 23 is installed at the upper ends of the first bracket 21 and the second bracket 22 .

[0038] Preferably, the first bracket 21 and the second bracket 22 are both telescopic structures such as telescopic rods.

[0039] Specifically, Figure 1 As shown, the first bracket 21 is slidably mounted on the base 1, and the second bracket 22 is fixedly mounted on the upper surface of the base 1. A bending portion 23 is provided between the first bracket 21 and the second bracket 22. The bending portion 23 includes two sets of connecting rods arranged in parallel. Each connecting rod includes a first rod 231 and a second rod 232. The length of the first rod 231 is greater than the length of the second rod 232, and the first rod 231 is rotatably connected to the corresponding second rod 232. Figure 1In the embodiment, one end of each first rod 231 away from the corresponding second rod 232 is rotatably connected to the upper end of the first bracket 21, and one end of each second rod 232 away from the corresponding first rod 231 is rotatably connected to the upper end of the second bracket 22. The middle parts of the two first rods 231 are connected through a leg pad 24 to support the calf, and the middle parts of the two second rods 232 are connected through another leg pad 24 to support the thigh. The positions of the first rods 231 and the second rods 232 corresponding to the leg pad 24 are fixedly connected with a strap 26. The first rod 231 and the second rod 232 are both fixedly connected with strap rings matching the strap 26. In addition, a foot rest 25 is provided between the two first rods 231, and the foot rest 25 is fixedly connected to one end of the first rod 231 away from the second rod 232. When in use, the patient places the thigh on the leg pad 24 on the second rod 232, the calf on the leg pad 24 on the first rod 231, and the heel is placed on the foot rest 25, and then the thigh and calf are tied to the corresponding leg pad 24 by the strap 26, and the foot rest is completed. Preparation work before rehabilitation, through the cooperation of the straps 26 and the leg pads 24, the patient's legs can be fixed on the rehabilitation frame 2 to prevent the patient's legs from separating from the rehabilitation frame 2 when the rehabilitation frame 2 is bent or straightened, so that the patient's legs can bend or straighten synchronously with the rehabilitation frame 2, ensuring that the patient's legs are adequately supported, especially during the patient's active movement; since the patient needs to sit or lie down to put his feet on the rehabilitation frame 2 for rehabilitation training, and different patients have different heights, in order to make the rehabilitation frame 2 suitable for different patients and different venues (on the bed or on the ground), the first bracket 21 and the second bracket 22 are both configured to be retractable, so as to adjust the height of the rehabilitation frame 2 according to the patient's needs, wherein the first bracket 21 and the second bracket 22 both include a support frame 211 and a fixing rod 212, the support frame 211 is a U-shaped structure, and a long groove for the fixing rod 212 to be inserted is provided on the support frame 211, and fixing bolts are provided on the support frame 211 corresponding to the fixing rod 212, such as Figure 1 As shown, by adjusting the extension amount of the fixing rod 212 on the support frame 211 and fixing it with fixing bolts, the height of the rehabilitation frame 2 can be adjusted to adapt to the use occasion of the rehabilitation frame 2 and the height of the user, thereby improving the comfort of the patient during rehabilitation training and achieving the best training effect. The above-mentioned first rod 231 and the second rod 232 are both rotatably connected to the upper end of the corresponding fixing rod 212.

[0040] In another embodiment of the present invention, the driving member includes a screw rod 11 rotatably mounted on the base 1, the screw rod 11 is externally threaded with a sleeve rod 12, the sleeve rod 12 is slidably connected to the base 1, the screw rod 11 rotates to drive the sleeve rod 12 to move axially along the screw rod 11, and the sleeve rod 12 is connected to the first bracket 21 through the adjusting member 3.

[0041] Specifically, in the above embodiment, the electric push rod is used for driving with poor stability. In this embodiment, the driving member includes a screw rod 11, which is arranged along the length direction of the base 1, and in this embodiment, the first bracket 21 also slides along the length direction of the base 1. The base 1 is fixed with support blocks at positions corresponding to both ends of the screw rod 11, and the two ends of the screw rod 11 are respectively rotatably connected to the corresponding support blocks. The outer part of the screw rod 11 is screwed with a sleeve rod 12, such as Figure 1 As shown, the sleeve rod 12 is threadedly connected to the screw rod 11, and the sleeve rod 12 is slidably connected to the base 1. In the present embodiment, the sleeve rod 12 and the first bracket 21 may also be connected by bolts. In addition, a motor 13 for driving the screw rod 11 to rotate is provided on the base 1. When the motor 13 drives the screw rod 11 to rotate, since the sleeve rod 12 is slidably connected to the base 1, the screw rod 11 cannot drive the sleeve rod 12 to rotate synchronously when it rotates. The sleeve rod 12 will move along the axial direction of the screw rod 11 under the drive of the screw rod 11, and drive the first bracket 21 to slide on the base 1. At this time, the patient's legs are bent and straightened under the drive of the rehabilitation frame 2, and rehabilitation training is performed passively. When the bolt is removed, the sliding of the first bracket 21 on the base 1 is not restricted by the sleeve rod 12, and the patient can perform rehabilitation training through active movement.

[0042] Furthermore, the length of the sleeve rod 12 is greater than the length of the sliding stroke of the first bracket 21, and a piston cavity 121 is axially opened in the sleeve rod 12, the adjusting member 3 includes a first piston block 31 dynamically sealed and installed in the piston cavity 121, a piston rod 32 is fixedly connected to the first piston block 31, the piston rod 32 is transmission-connected to the first bracket 21, the piston cavity 121 is connected to the external environment through the small hole 122, and a sealing member for sealing the small hole 122 is also provided on the sleeve rod 12.

[0043] Specifically, in the above embodiment, the driving member is connected to the first bracket 21 by bolts. When the connection between the driving member and the first bracket 21 is cancelled, the sliding speed of the first bracket 21 is completely controlled by the patient's leg strength. However, since the patient's leg strength has not been fully restored, once the patient's legs are bent to a certain extent, there is not enough strength to support them, which will cause the legs to straighten suddenly. The vibration and impact generated will cause damage to the patient's surgical position. In this embodiment, a piston cavity 121 is opened on the sleeve rod 12. The piston cavity 121 is opened along the axial direction, that is, the sliding direction of the first bracket 21, and the adjustment The component 3 includes a first piston block 31 disposed in the piston cavity 121. The first piston block 31 is installed in the piston cavity 121 in a dynamic seal, and a piston rod 32 is fixedly connected to the first piston block 31. The piston rod 32 is arranged along the axial direction of the piston cavity 121, and in this embodiment, the end of the piston rod 32 away from the piston block is fixedly connected to the first bracket 21; in order to make the sliding stroke of the first bracket 21 not affected, it is assumed that the length of the sliding stroke of the first piston block 31 in the piston cavity 121 is L1, and the length of the sliding stroke of the first bracket 21 on the base 1 is L2, then L1 is greater than L2, in addition, if Figure 2 , Figure 3 and Figure 8 As shown, a small hole 122 is also provided on the sleeve rod 12 in the area located at the bottom wall of the piston chamber 121, and the small hole 122 connects the piston chamber 121 with the external environment. A sealing member capable of sealing the small hole 122 is also provided on the sleeve rod 12. Optionally, the sealing member is a sealing cover (not shown in the figure) screwed on the small hole 122.

[0044] During the rehabilitation training: when the patient needs to perform rehabilitation training through passive movement, the small hole 122 is blocked by the sealing cover. At this time, since the piston chamber 121 is in a closed state, the external gas cannot enter the piston chamber 121 through the small hole 122. At this time, the motor 13 is started, and the motor 13 drives the screw rod 11 to rotate, and the sleeve rod 12 slides under the drive of the screw rod 11. In this process, since the first piston block 31 is connected to the first bracket 21 through the piston rod 32, and the air pressure in the piston chamber 121 is consistent with the external environment, in the early stage of the movement of the sleeve rod 12, the first piston block 31 slides a short distance relative to the piston chamber 121. As the piston chamber 121 moves The available volume increases, while the amount of gas remains unchanged, and negative pressure is formed in the piston chamber 121. Assuming that the pulling force required to pull the first piston block 31 to move in the piston chamber 121 is F1, and the pulling force required to pull the first bracket 21 to slide on the base 1 is F2, then F1 is greater than F2, so the sleeve rod 12 continues to move and the first bracket 21 can slide on the base 1 through the first piston block 31. Obviously, in order to prevent the first piston block 31 from sliding relative to the piston chamber 121 in the early stage of the movement of the sleeve rod 12 and causing the first piston block 31 to be separated from the piston chamber 121, the first piston block 31 needs to be kept at the end where the small hole 122 in the piston chamber 121 is opened before starting the motor 13. Figure 2 In the view, the small hole 122 is opened corresponding to the left end of the piston chamber 121, and the first piston block 31 can be adjusted to the left end of the piston chamber 121 before starting the motor 13;

[0045] When the patient performs rehabilitation training through active movement, the sealing cover is opened so that the small hole 122 connects the piston chamber 121 with the external environment. After the patient's legs are fixed on the rehabilitation frame 2, the patient's legs drive the rehabilitation frame 2 to bend or straighten. In this process, the rehabilitation frame 2 drives the first bracket 21 to slide on the base 1, and the first bracket 21 pushes the first piston block 31 to slide in the piston chamber 121 through the piston rod 32. Due to the limitation of the diameter of the small hole 122, the speed at which the gas in the piston chamber 121 is discharged to the outside is limited, which has a certain deceleration effect on the first bracket 21. In this way, the first bracket 21 can be prevented from sliding too fast, thereby reducing the impact and the vibration caused by the impact, and preventing the patient's legs from being injured again.

[0046] Obviously, in order for the patient to perform rehabilitation training through active movement, the first piston block 31 can slide in the piston chamber 121 during the sliding stroke of the first bracket 21, and the motor 13 is required to drive the screw rod 11 to rotate so that the sleeve rod 12 slides along the base 1 to one end close to the second bracket 22, so that the length of the sliding stroke of the first piston block 31 in the piston chamber 121 can be greater than or equal to the length of the sliding stroke of the first bracket 21.

[0047] Furthermore, an electric-controlled valve is provided in the small hole 122 , and a controller 14 is installed on the base 1 , and the controller 14 controls the opening and closing of the electric-controlled valve.

[0048] Specifically, to facilitate the use of the rehabilitation training auxiliary device, in this embodiment, a controller 14 is installed on the base 1, and an electrically controlled valve such as a solenoid valve is installed in the small hole 122. The solenoid valve is electrically connected to the controller 14, and the above-mentioned motor 13 is also electrically connected to the controller 14. The opening and closing of the solenoid valve can be controlled by the controller 14 to switch between active movement and passive movement, and during active movement, the opening and closing of the motor 13 can also be controlled by the controller 14. Among them, the controller 14 can adopt PLC, which is a prior art and can be directly applied without further explanation.

[0049] In another embodiment of the present invention, the electrically controlled valve is a proportional solenoid valve 123 .

[0050] Specifically, at different stages of the patient's rehabilitation, training of different intensities is required to improve muscle strength and endurance. In the above embodiment, an electrically controlled valve is installed at the small hole 122, and the connection and disconnection between the piston chamber 121 and the external environment are realized by opening and closing the electrically controlled valve. However, the commonly used electrically controlled valve can only be switched between fully open and fully closed, that is, the gas flow at the small hole 122 cannot be adjusted. This results in that when the patient actively exercises for rehabilitation training, the sliding resistance of the first bracket 21 on the base 1 is always the same; in this embodiment, the electrically controlled valve installed at the small hole 122 is a proportional solenoid valve 12 3, which can be adjusted to any opening as needed, so as to achieve the purpose of controlling the gas flow at the small hole 122. In this way, during the actual training process, by adjusting the opening of the proportional solenoid valve 123, the resistance of the first piston block 31 sliding in the piston chamber 121 is adjusted. For example, when a higher intensity training is required, the opening of the proportional solenoid valve 123 is adjusted to a smaller degree, so that the resistance when the first bracket 21 drives the first piston block 31 to move is large. When low-intensity training is performed, the opening of the proportional solenoid valve 123 is adjusted to the maximum, that is, the fully opened state, so that the resistance when the first bracket 21 drives the first piston block 31 to move is minimal.

[0051] In another embodiment of the present invention, a sliding rod 4 is fixedly connected to the first bracket 21, and the sliding rod 4 extends into the interior of the piston rod 32. A buffer assembly is provided on the inner wall of the piston rod 32 at one end close to the first piston block 31, and a connecting assembly 5 for connecting the sliding rod 4 and the piston rod 32 is also provided on the first bracket 21.

[0052] Specifically, during the patient's rehabilitation process, not only targeted training of muscle strength and endurance is required, but also training of lower limb flexibility is particularly important, especially for individuals who need to return to high-intensity exercise, such as athletes. However, in the above embodiment, due to the limited opening of the small hole 122, the resistance existing during active training makes it difficult to perform rehabilitation training of rapid bending and straightening; in this embodiment, the piston rod 32 is a hollow rod, and a sliding rod 4 is fixedly connected to the first bracket 21, and the sliding rod 4 extends into the interior of the piston rod 32, and a buffer assembly is provided on the inner wall of the piston rod 32 close to the first piston block 31, that is, the end away from the first bracket 21. Optionally, the buffer assembly is a second piston block 41 arranged in the piston rod 32, and the inner cavity of the piston rod 32 has a small diameter near its two ends, and a large diameter near the middle of the piston rod 32, such as Figure 2 and Figure 6 As shown, the area where the diameter of the inner cavity of the piston rod 32 changes is an inclined surface, wherein the minimum diameter of the inner cavity of the piston rod 32 is equal to the diameter of the second piston block 41; in this arrangement, when the first bracket 21 moves to drive the sliding rod 4 to move in the piston rod 32, when the second piston block 41 moves to a position close to both ends of the piston rod 32, that is, an area with a small inner cavity diameter, since the inner diameter of the inner cavity of the piston rod 32 in this area is equal to the diameter of the second piston block 41, the second piston block 41 will compress the air in this area, and absorb and disperse the impact energy through the compressibility of the air. , to ensure that the rehabilitation frame 2 is buffered in the final stage of bending or straightening. When the second piston block 41 moves to the middle of the piston rod 32, since the inner diameter of the piston rod 32 in this area is greater than the diameter of the second piston block 41, the resistance of the second piston block 41 during movement is small, so that the rehabilitation frame 2 can be bent or straightened quickly, so that the patient can train leg flexibility, and has a certain buffering effect in the final stage of bending or straightening of the rehabilitation frame 2, thereby preventing collisions caused by excessive force, protecting the patient while also avoiding damage to the rehabilitation frame 2 itself.

[0053] Furthermore, a guide ring 124 is fixedly connected to the inner wall of the piston chamber 121 away from the small hole 122. The guide ring 124 is sleeved on the end of the piston rod 32 away from the first piston block 31, and the guide ring 124 is fixedly connected to the inner wall of the piston chamber 121. A fan-shaped channel is opened on the guide ring 124.

[0054] Specifically, when the patient performs flexibility rehabilitation training, the second piston block 41 moves quickly in the piston rod 32, causing the piston rod 32 to shake, especially when the second piston block 41 moves from a position with a large inner diameter of the piston rod 32 to a position with a small inner diameter. In this embodiment, a guide ring 124 is provided on the outside of the piston rod 32, and the guide ring 124 is located at the end of the piston rod 32 away from the first piston block 31. In this way, the first piston block 31 and the guide ring 124 are used to support the two ends of the piston rod 32 respectively, so as to enhance the support of the piston rod 32 in the piston cavity 121 and avoid damage to the connection between the piston rod 32 and the first piston block 31. In addition, the fan-shaped channel provided on the guide ring 124 enables the end of the piston cavity 121 away from the small hole 122 to be connected to the external environment, thereby facilitating the first piston block 31 to slide in the piston cavity 121.

[0055] Furthermore, the connecting assembly 5 includes a plug-in column 51 slidably installed in the sliding rod 4, the plug-in column 51 slides radially along the sliding rod 4, a spring 52 is provided in the sliding rod 4 for keeping the plug-in column 51 in the sliding rod 4, a plug-in hole 321 is provided on the inner wall of the piston rod 32 for matching the plug-in column 51, an adjusting rod 53 is slidably installed on the first bracket 21, a guide column 511 is fixedly connected to the plug-in column 51, the guide column 511 extends toward the central axis of the sliding rod 4, one end of the adjusting rod 53 is provided with a guide inclined surface 531 matching the plug-in column 51, and a screw 54 is screwed on the first bracket 21 for driving the adjusting rod 53 to move axially along the sliding rod 4, and the adjusting rod 53 is rotationally connected to the screw 54.

[0056] Specifically, Figure 2 and Figure 5As shown, a plug-in column 51 is slidably installed on the sliding rod 4 near the end thereof connected to the first bracket 21, and a cylindrical cavity for accommodating the plug-in column 51 is provided on the sliding rod 4, and a spring 52 is provided in the cylindrical cavity, and the two ends of the spring 52 are respectively connected to the plug-in column 51 and the inner wall of the cylindrical cavity, so that once the plug-in column 51 extends outward from the cylindrical cavity, the spring 52 will be pulled to extend, and a plug-in hole 321 is provided on the inner wall of the piston rod 32 corresponding to the position of the plug-in column 51. In addition, an adjusting rod 53 is slidably installed on the first bracket 21, and a guiding inclined surface 531 is provided at one end of the adjusting rod 53. A guide column 511 is fixedly connected to the plug-in column 51, and the end of the guide column 511 away from the plug-in column 51 is extended toward the sliding rod 4 The first bracket 21 is provided with a screw 54 which is threadedly connected to the first bracket 21 and is coaxially arranged with the adjusting rod 53. The end of the adjusting rod 53 is rotatably connected to the screw 54, so that when the screw 54 spirals on the first bracket 21, the adjusting rod 53 can be driven to move axially along the sliding rod 4.

[0057] When the patient needs to perform active exercise with lower intensity, the screw 54 is rotated, and the screw 54 pushes the adjusting rod 53 to move along the axial direction of the sliding rod 4 toward the side where the second piston block 41 is located. When the guiding inclined surface 531 on the adjusting rod 53 contacts the guide column 511, the plug-in column 51 is pushed by the guide column 511 to be plugged into the corresponding plug-in hole 321, so that the connection between the sliding rod 4 and the piston rod 32 can be achieved; and when the patient needs to perform training with higher intensity, the screw 54 is rotated in the opposite direction, and the screw 54 pulls the adjusting rod 53 away from the second piston block 41 along the axial direction of the sliding rod 4. At this time, as the guide column 511 separates from the guiding inclined surface 531 of the adjusting rod 53, the spring 52 pulls the plug-in column 51 to shrink into the cylindrical cavity, thereby separating the sliding rod 4 from the piston rod 32, so that the sliding rod 4 can move inside the piston rod 32. In this embodiment, since only some special patients need to perform flexibility rehabilitation training, the connection between the sliding rod 4 and the piston rod 32 is achieved manually to avoid misoperation by general patients.

[0058] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A postoperative rehabilitation training auxiliary device, comprising a base and a driving member, wherein a rehabilitation frame for adapting to the patient's thigh and calf is installed on the base, and the rehabilitation frame is driven by the driving member to bend to drive the thigh and calf to move accordingly, characterized in that: An adjusting member is also installed on the base, and the adjusting member can establish or disconnect transmission between the rehabilitation frame and the driving member.

2. A postoperative rehabilitation training auxiliary device according to claim 1, characterized in that: The rehabilitation frame comprises a first bracket, a second bracket and a bending part. The first bracket is slidably connected to the base, the second bracket is fixedly connected to the base, and the bending part is installed at the upper ends of the first bracket and the second bracket.

3. A postoperative rehabilitation training auxiliary device according to claim 2, characterized in that: The first bracket and the second bracket are both telescopic structures.

4. A postoperative rehabilitation training auxiliary device according to claim 2, characterized in that: The driving member includes a screw rod rotatably mounted on the base, a sleeve rod is threadedly connected to the screw rod, the sleeve rod is slidably connected to the base, and the screw rod rotates to drive the sleeve rod to move along the axial direction of the screw rod, and the sleeve rod is connected to the first bracket through an adjusting member.

5. A postoperative rehabilitation training auxiliary device according to claim 4, characterized in that: The length of the sleeve rod is greater than the length of the sliding stroke of the first bracket, and a piston cavity is axially opened in the sleeve rod. The adjusting member includes a first piston block dynamically sealed and installed in the piston cavity. A piston rod is fixedly connected to the first piston block. The piston rod is transmission-connected to the first bracket. The piston cavity is connected to the external environment through a small hole. A sealing member for sealing the small hole is also provided on the sleeve rod.

6. A postoperative rehabilitation training auxiliary device according to claim 5, characterized in that: An electric-controlled valve is arranged in the small hole, and a controller is installed on the base, and the controller controls the opening and closing of the electric-controlled valve.

7. A postoperative rehabilitation training auxiliary device according to claim 6, characterized in that: The electronically controlled valve is a proportional solenoid valve.

8. A postoperative rehabilitation training auxiliary device according to claim 6 or 7, characterized in that: A sliding rod is fixedly connected to the first bracket and extends into the interior of the piston rod. A buffer component is arranged on one end of the inner wall of the piston rod close to the first piston block. A connecting component for connecting the sliding rod and the piston rod is also arranged on the first bracket.

9. The postoperative rehabilitation training auxiliary device according to claim 8, characterized in that: A guide ring is fixedly connected to the inner wall of the piston cavity away from the small hole. The guide ring is sleeved on the end of the piston rod away from the first piston block. The guide ring is fixedly connected to the inner wall of the piston cavity and a fan-shaped channel is opened on the guide ring.

10. The postoperative rehabilitation training auxiliary device according to claim 8, characterized in that: The connecting assembly includes a plug-in column slidably installed in the sliding rod, the plug-in column slides radially along the sliding rod, a spring is arranged in the sliding rod for keeping the plug-in column in the sliding rod, a plug-in hole matching the plug-in column is opened on the inner wall of the piston rod, an adjusting rod is slidably installed on the first bracket, a guide column is fixed on the plug-in column, the guide column extends toward the central axis of the sliding rod, one end of the adjusting rod is provided with a guide inclined surface matching the plug-in column, and a screw rod is screwed on the first bracket for driving the adjusting rod to move axially along the sliding rod, and the adjusting rod is rotationally connected to the screw rod.

Images