A bedside lower limb muscle strength quantification training device

Abstract

The present invention belongs to the technical field of medical devices, and specifically discloses a bedside lower limb muscle strength quantification training device, which includes a mobile trolley, an electric lifting column, a screw rod adjustment assembly, a left training mechanism and a right training mechanism; both the left training mechanism and the right training mechanism are provided with a first rotating arm and a second rotating arm connected by rotation, and a driving mechanism. One end of the first rotating arm far from the second rotating arm is rotatably connected to a fixed seat, and the fixed seat is connected to the screw rod adjustment assembly. One end of the second rotating arm located above the hospital bed is pivotally connected to a foot pedal, and the foot pedal is provided with a pressure sensor electrically connected to the driving mechanism. With this structural design, it is possible to enable a patient lying flat on the hospital bed to meet the synchronous training of the patient's single foot or both feet through the left training mechanism and the right training mechanism, and it is also possible to timely optimize the training process according to the force condition collected by the pressure sensor arranged on the foot pedal to meet the isometric training requirements of the patient.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a bedside lower limb muscle strength quantification training device. Background Art

[0002] In the prior art, when rehabilitating the lower limb muscle strength of patients, most often a physiotherapist manually helps the patients with rehabilitation training. Treating in this way of operation greatly increases the working intensity of the physiotherapist, and also cannot obtain the magnitude of the foot force, thus making the overall treatment effect poor. Summary of the Invention

[0003] The purpose of the present invention is to provide a bedside lower limb muscle strength quantification training device, which can meet the synchronous training of a single foot or both feet of patients, thereby effectively reducing the working intensity of the physiotherapist. In addition, through the setting of pressure sensors, the foot force condition can be obtained in a timely manner, thereby meeting the isometric training requirements of patients and improving the training effect.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A bedside lower limb muscle strength quantification training device includes a mobile trolley arranged at one end of a hospital bed, an electric lifting column erected on the mobile trolley, a screw rod adjusting assembly arranged along the width direction of the hospital bed and fastened to the electric lifting column, and a left training mechanism and a right training mechanism arranged side by side on the screw rod adjusting assembly; both the left training mechanism and the right training mechanism are provided with a first rotating arm and a second rotating arm rotatably connected, and a driving mechanism for driving the first rotating arm and the second rotating arm to rotate. One end of the first rotating arm far from the second rotating arm is rotatably connected to a fixed seat, the fixed seat is connected to the screw rod adjusting assembly, one end of the second rotating arm located above the hospital bed is pivotally connected to a foot pedal, and the foot pedal is provided with a pressure sensor electrically connected to the driving mechanism.

[0006] Wherein, the screw rod adjusting assembly includes a screw rod frame, a screw rod erected along the length direction of the screw rod frame, and a turntable arranged at one end of the screw rod frame for driving the screw rod to rotate, and the screw rod is in threaded connection with the fixed seat.

[0007] Wherein, the driving mechanism includes a motor erected on the fixed seat, and a synchronous belt connected to the rotating shafts at both ends of the first rotating arm, and one end of the first rotating arm is fastened to the driving shaft of the motor.

[0008] Wherein, the cross-section of the first rotating arm is arranged in a U shape, and the synchronous belt is arranged in the U-shaped groove of the first rotating arm.

[0009] Among them, a main shaft is horizontally arranged in the middle of the U-shaped groove of the first rotating arm, and a first pulley and a second pulley are arranged on the main shaft along the length direction.

[0010] Among them, one side wall of the U-shaped groove is rotatably connected to one side wall of the fixed seat through a first pivot connection. A third pulley is sleeved on the first pivot shaft. The other side wall of the U-shaped groove is fastened to the motor drive shaft arranged on one side wall of the fixed seat; a fourth pulley is sleeved on the rotating shaft where the first rotating arm is connected to the second rotating arm.

[0011] Among them, the synchronous belt includes a first synchronous belt and a second synchronous belt. The first synchronous belt is sleeved on the second pulley and the fourth pulley; the second synchronous belt is sleeved on the first pulley and the third pulley.

[0012] Among them, the second rotating arm includes a first L-shaped arm and a second L-shaped arm arranged in parallel at intervals, and a support shaft and a second pivot shaft arranged between the first L-shaped arm and the second L-shaped arm.

[0013] Among them, the foot pedal includes a U-shaped bracket, and a pedal perpendicularly fastened to the bottom plate between the two side walls of the U-shaped bracket. The pedal is respectively fastened to the two side walls of the U-shaped bracket. A pressure sensor is arranged on the bearing surface of the pedal. The U-shaped bracket is rotatably connected to the second rotating arm through the second pivot shaft.

[0014] Among them, the left training mechanism and the right training mechanism have the same structure, and move towards each other or away from each other along the length direction of the lead screw adjustment assembly respectively.

[0015] The beneficial effects of the present invention are as follows: The present invention discloses a bedside lower limb muscle strength quantification training device, including a mobile trolley arranged at one end of the hospital bed, an electric lifting column erected on the mobile trolley, a lead screw adjustment assembly arranged along the width direction of the hospital bed and fastened to the electric lifting column, and a left training mechanism and a right training mechanism arranged side by side on the lead screw adjustment assembly; both the left training mechanism and the right training mechanism are provided with a first rotating arm and a second rotating arm rotatably connected, and a driving mechanism for driving the first rotating arm and the second rotating arm to rotate. One end of the first rotating arm far away from the second rotating arm is rotatably connected to a fixed seat, and the fixed seat is connected to the lead screw adjustment assembly. One end of the second rotating arm located above the hospital bed is pivotally connected to a foot pedal, and the foot pedal is provided with a pressure sensor electrically connected to the driving mechanism. With such a structural design, it can enable a patient lying flat on the hospital bed to meet the synchronous training of the patient's single foot or both feet through the left training mechanism and the right training mechanism, and can also optimize the training process in a timely manner according to the force condition collected by the pressure sensor arranged on the foot pedal, meeting the requirements of the patient's isometric tension training. Description of the Drawings

[0016] Figure 1It is an axonometric view when the patient lies flat in a bedside lower limb muscle strength quantification training device of the present invention.

[0017] Figure 2 It is an axonometric view when the patient bends the knees in a bedside lower limb muscle strength quantification training device of the present invention.

[0018] Figure 3 Is Figure 1 The reverse axonometric view of the right training mechanism in

[0019] Figure 4 Is Figure 1 The front axonometric view of the right training mechanism in

[0020] In the figure:

[0021] 1. Hospital bed; 2. Mobile trolley; 3. Electric lifting column; 4. Screw rod adjusting assembly; 41. Screw rod frame; 42. Screw rod; 43. Turntable; 5. Left training mechanism; 6. Right training mechanism; 61. First rotating arm; 611. Main shaft; 612. First pulley; 614. First pivot shaft; 615. Third pulley; 616. Fourth pulley; 62. Second rotating arm; 621. First L-shaped arm; 622. Second L-shaped arm; 623. Support shaft; 624. Second pivot shaft; 63. Fixed seat; 64. Foot pedal; 641. U-shaped bracket; 642. Pedal; 651. Motor; 652. First synchronous belt; 653. Second synchronous belt. Detailed implementation mode

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of description, only parts related to the present invention are shown in the drawings, rather than all the structures.

[0023] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. 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.

[0024] In the present invention, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0025] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0026] Combined with Figures 1 to 4 As shown, this embodiment provides a bedside lower limb muscle strength quantification training device, which includes a mobile trolley 2 arranged at one end of a hospital bed 1, an electric lifting column 3 erected on the mobile trolley 2, a lead screw adjustment assembly 4 arranged along the width direction of the hospital bed 1 and fastened to the electric lifting column 3, and a left training mechanism 5 and a right training mechanism 6 arranged side by side on the lead screw adjustment assembly 4. With the bedside lower limb muscle strength quantification training device designed with such a structure, the distance between the left training mechanism 5 and the right training mechanism 6 can be adjusted through the setting of the lead screw adjustment assembly 4, and then it is more convenient to apply to the rehabilitation training of patients.

[0027] More specifically, as a preference, in order to enable synchronous training, alternating training or single-leg training of the left and right legs, the left training mechanism 5 and the right training mechanism 6 in this embodiment have the same structure, and both are provided with a first rotating arm 61 and a second rotating arm 62 connected by rotation, and a driving mechanism for driving the first rotating arm 61 and the second rotating arm 62 to rotate. In order to facilitate the connection and fixation of the left training mechanism 5 and the right training mechanism 6 with the lead screw adjustment assembly 4, a fixed seat 63 is rotatably connected to one end of the first rotating arm 61 far from the second rotating arm 62 in this embodiment, and the fixed seat 63 is connected to the lead screw adjustment assembly 4. In addition, in order to facilitate the placement and force application of the patient's feet, a foot pedal 64 is pivotally connected to one end of the second rotating arm 62 above the hospital bed 1 in this embodiment. At the same time, in order to more intuitively quantify the force applied by the patient's feet during rehabilitation training, a pressure sensor electrically connected to the driving mechanism is arranged on the foot pedal 64. Thus, based on the data measured by the pressure sensor, the driving force of the driving mechanism is adjusted in a timely manner, and then the rehabilitation training process of the patient is better optimized.

[0028] Preferably, the lead screw adjustment assembly 4 in this embodiment includes a lead screw frame 41, a lead screw 42 installed along the length direction of the lead screw frame 41, and a turntable 43 arranged at one end of the lead screw frame 41 for driving the rotation of the lead screw 42. The lead screw 42 is threadedly connected to the fixed seat 63. When adjusting the distance between the left training mechanism 5 and the right training mechanism 6, the rotation of the turntable 43 can be used to drive the rotation of the lead screw 42, and then the two fixed seats 63 move towards or away from each other along the lead screw 42.

[0029] More preferably, the drive mechanism in this embodiment includes a motor 651 installed on the fixed seat 63, and a synchronous belt connected to the rotating shafts at both ends of the first rotating arm 61. One end of the first rotating arm 61 is fastened to the drive shaft of the motor 651, so as to drive the first rotating arm 61 to rotate around the drive shaft of the motor 651 through the drive shaft of the motor 651.

[0030] Furthermore, in order to facilitate the setting of the synchronous belt in this embodiment, the cross-section of the first rotating arm 61 is arranged in a U shape, and the synchronous belt is arranged in the U-shaped groove of the first rotating arm 61. In addition, a main shaft 611 is transversely arranged in the middle of the U-shaped groove of the first rotating arm 61, and a first pulley 612 and a second pulley are arranged along the length direction of the main shaft 611; furthermore, one side wall of the U-shaped groove is rotatably connected to one side wall of the fixed seat 63 through a first pivot shaft 614. Preferably, the first pivot shaft 614 is fastened to one side wall of the U-shaped groove, and a third pulley 615 is sleeved on the first pivot shaft 614. A fourth pulley 616 is sleeved on the rotating shaft connecting the first rotating arm 61 and the second rotating arm 62. Preferably, both ends of the rotating shaft are fastened to the first rotating arm 61 and are rotatably connected to the second rotating arm 62.

[0031] More specifically, in order to drive the rotation of the first rotating arm 61 and the second rotating arm 62 through the above structure, the synchronous belt in this embodiment includes a first synchronous belt 652 and a second synchronous belt 653. The first synchronous belt 652 is sleeved on the second pulley and the fourth pulley 616; the second synchronous belt 653 is sleeved on the first pulley 612 and the third pulley 615. In this way, the motor 651 drives the rotation of the first rotating arm 61, and then drives the rotation of the first pulley 612 through the third pulley 615 and the second synchronous belt 653. After that, the first pulley 612 drives the rotation of the second pulley, the first synchronous belt 652 and the fourth pulley 616, and finally drives the second rotating arm 62 to rotate synchronously around the rotating shaft at one end of the first rotating arm 61.

[0032] In this embodiment, since a foot pedal 64 is rotatably arranged at the end of the second rotating arm 62, thus, the feet of the patient lying flat on the hospital bed 1 can be placed on the foot pedal 64, and then with the rotation between the first rotating arm 61 and the second rotating arm 62, the lower limbs of the patient are driven to stretch back and forth along the horizontal plane direction of the hospital bed 1.

[0033] More specifically, the footrest 64 in this embodiment includes a U-shaped bracket 641 and a pedal 642 perpendicularly fastened to the bottom plate between the two side walls of the U-shaped bracket 641. The pedal 642 is respectively fastened to the two side walls of the U-shaped bracket 641. A pressure sensor is provided on the bearing surface of the pedal 642. The U-shaped bracket 641 is rotatably connected to the second rotating arm 62 through a second pivot shaft 624.

[0034] With the above structural design, it can enable the patient's feet and legs to bend and stretch back and forth along the horizontal plane direction of the hospital bed 1 all the time. At the same time, through the setting of the pressure sensor, the force exerted on the patient's feet can be quantified to meet the requirements of the patient's equal-tension training, that is, how much force the patient's feet exert on the left training mechanism 5 and the right training mechanism 6, the left training mechanism 5 and the right training mechanism 6 will react with the same amount of force on the patient's feet. Then, according to the training requirements, the driving force of the driving mechanism can be adjusted in time to better optimize the training process, and then enable the patient to get better rehabilitation and treatment.

[0035] More preferably, the second rotating arm 62 in this embodiment includes a first L-shaped arm 621 and a second L-shaped arm 622 arranged in parallel at intervals, and a support shaft 623 and a second pivot shaft 624 arranged between the first L-shaped arm 621 and the second L-shaped arm 622. This can facilitate the installation of the first rotating arm 61 and the second rotating arm 62, and can also preferably reduce the load of the driving mechanism through the setting of the second rotating arm 62.

[0036] The bedside lower limb muscle strength quantification training device with the above structural design can not only meet the synchronous or alternating movement of the patient's feet, but also meet the single-foot movement of the patient, thus greatly facilitating the patient's rehabilitation training.

[0037] Note that the above is only a preferred embodiment of the present invention and the applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments here. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A bedside lower limb muscle strength quantification training device, characterized in that, it includes a mobile trolley (2) arranged at one end of a hospital bed (1), an electric lifting column (3) erected on the mobile trolley (2), a screw rod adjusting assembly (4) arranged along the width direction of the hospital bed (1) and fastened to the electric lifting column (3), and a left training mechanism (5) and a right training mechanism (6) arranged side by side on the screw rod adjusting assembly (4); both the left training mechanism (5) and the right training mechanism (6) are provided with a first rotating arm (61) and a second rotating arm (62) connected by rotation, and a driving mechanism for driving the first rotating arm (61) and the second rotating arm (62) to rotate. One end of the first rotating arm (61) far from the second rotating arm (62) is rotatably connected to a fixed seat (63), and the fixed seat (63) is connected to the screw rod adjusting assembly (4). One end of the second rotating arm (62) located above the hospital bed (1) is pivotally connected to a foot pedal (64), and the foot pedal (64) is provided with a pressure sensor electrically connected to the driving mechanism; the second rotating arm (62) includes a first L-shaped arm (621) and a second L-shaped arm (622) arranged in parallel at intervals; The driving mechanism includes a motor (651) erected on the fixed seat (63), and a synchronous belt connected to the rotating shafts at both ends of the first rotating arm (61). One end of the first rotating arm (61) is fastened to the driving shaft of the motor (651); The cross-section of the first rotating arm (61) is arranged in a U shape, and the synchronous belt is arranged in the U-shaped groove of the first rotating arm (61); a main shaft (611) is horizontally arranged in the middle of the U-shaped groove of the first rotating arm (61), and a first belt pulley (612) and a second belt pulley are arranged along the length direction of the main shaft (611); one side wall of the U-shaped groove is rotatably connected to one side wall of the fixed seat (63) through a first pivot shaft (614), and a third belt pulley (615) is sleeved on the first pivot shaft (614). The other side wall of the U-shaped groove is fastened to the driving shaft of the motor (651) arranged on one side wall of the fixed seat (63); a fourth belt pulley (616) is sleeved on the rotating shaft where the first rotating arm (61) is connected to the second rotating arm (62); The synchronous belt includes a first synchronous belt (652) and a second synchronous belt. The first synchronous belt (652) is sleeved on the second belt pulley and the fourth belt pulley (616); the second synchronous belt is sleeved on the first belt pulley (612) and the third belt pulley (615).

2. The bedside lower limb muscle strength quantification training device according to claim 1, characterized in that, the screw rod adjusting assembly (4) includes a screw rod frame (41), a screw rod (42) erected along the length direction of the screw rod frame (41), and a turntable (43) arranged at one end of the screw rod frame (41) for driving the screw rod (42) to rotate. The screw rod (42) is in threaded connection with the fixed seat (63).

3. The bedside lower limb muscle strength quantification training device according to claim 1, It is characterized in that the second rotating arm (62) further includes a support shaft (623) and a second pivot shaft (624) disposed between the first L-shaped arm (621) and the second L-shaped arm (622).

4. A bedside lower limb muscle strength quantification training device according to claim 3, It is characterized in that the foot pedal (64) includes a U-shaped bracket (641), and a pedal (642) perpendicularly fastened to the bottom plate between the two side walls of the U-shaped bracket (641). The pedal (642) is respectively fastened to the two side walls of the U-shaped bracket (641). A pressure sensor is provided on the bearing surface of the pedal (642). The U-shaped bracket (641) is rotationally connected to the second rotating arm (62) through the second pivot shaft (624).

5. A bedside lower limb muscle strength quantification training device according to claim 1, It is characterized in that the left training mechanism (5) and the right training mechanism (6) have the same structure, and move towards each other or away from each other along the length direction of the lead screw adjustment assembly (4).

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