CN110522613A - a rehabilitation crutch - Google Patents

Abstract

The present invention relates to the technical field of medical rehabilitation equipment, in particular to a rehabilitation crutch, which mainly includes: a cane body, the cane body is a tubular structure perpendicular to the ground, and a handle is vertically connected to the top of the cane body; an anti-shake projector , the anti-shake projector is arranged inside the cavity of the handle; an acceleration sensor is arranged inside the cavity of the handle; a controller, the input end of the controller is electrically connected to the acceleration sensor , the output end of the controller is electrically connected to the anti-shake projector; during use, by projecting a stable width mark on the ground, the patient can intuitively mark the passability of the road ahead, so that the rehabilitation crutch can be While supporting the body, it also achieves the purpose of overcoming psychological obstacles and avoiding risks for patients.

Description

a rehabilitation crutch

technical field

The invention relates to the technical field of medical rehabilitation equipment, in particular to a rehabilitation crutch.

Background technique

The clinical manifestations of patients with Parkinson's disease mainly include resting tremor, bradykinesia, muscle rigidity and movement symptoms of posture and gait disturbance, which lead to difficulty in starting, freezing gait and unstable posture and easy to fall, which cannot be well relieved by existing drug treatment This symptom therefore seriously affects the daily life of the patient, and causes the patient to be unable to take care of himself and serious safety hazards such as falls. Nowadays, patients need to carry out motor function training, practice striding and walking, and need the support of walking sticks when practicing striding and walking. However, the crutches used by the elderly today have simple structures and single functions, and can only be used for patients to practice striding. And it plays a supporting role when walking. When the patient passes through a narrow or curved road, due to tremor symptoms, he cannot effectively evaluate his own condition for the passability of the road, thus causing psychological obstacles to Parkinson's patients, and it is even more difficult to walk.

Contents of the invention

The present invention provides a rehabilitation crutch, which can visually mark the passability of the road ahead for the patient by projecting a stable width-showing mark on the ground during use, so that the rehabilitation crutch can also achieve The purpose of overcoming psychological barriers and avoiding risks for patients.

In order to achieve the above object, the present invention provides the following technical solutions: a rehabilitation crutch, which mainly includes: a cane body, the cane body is a tubular structure perpendicular to the ground, a handle is vertically connected to the top of the cane body, and the handle It is a cavity structure, and the cavity in the handle communicates with the inside of the stick body; the anti-shake projector, the anti-shake projector is arranged inside the cavity of the handle, and passes through the front end of the handle The window projects a stable indicator light spot to the ground ahead; the acceleration sensor is arranged inside the handle cavity and is used to collect the shaking state of the stick body; the controller, the controller input terminal is connected to the acceleration The sensor is electrically connected, and the output terminal of the controller is electrically connected with the anti-shake projector, which is used to control the work of the anti-shake projector according to the shaking of the stick body; the power supply is set in the The stick body is close to the inside of one end of the handle, and the power supply is electrically connected to the controller.

Preferably, capacitive switches are provided on both sides of the handle, and each of the capacitive switches is electrically connected to the controller.

Preferably, the anti-shake projector is composed of a lens barrel, a lens group, an anti-shake mechanism, a light source, and a spot lens; the lens barrel is fixedly connected to the front end of the handle, and the axis of the lens barrel is formed with the ground. included angle; the lens barrel is coaxially arranged inside the lens barrel through an anti-shake mechanism, the light source is fixed at one end of the lens barrel inside the handle cavity, and the spot lens is fixed at the end of the handle cavity between the lens group and the light source; the anti-shake mechanism and the light source are electrically connected to the controller.

Preferably, the anti-shake mechanism includes a fixed ring coaxially wrapped on the outer wall of the lens group, and a plurality of radially arranged tension springs are evenly distributed around the circumference of the fixed ring, and the tension springs are connected to the lens barrel Between the inner wall and the outer wall of the fixed ring; the outer wall of the fixed ring is evenly distributed with four magnets in the circumferential direction in the area that does not overlap with the tension spring, and the inner wall of the lens barrel corresponds to each of the magnets. An electromagnetic coil and a second electromagnetic coil, each of the first electromagnetic coils corresponds to the end of the magnet close to the outside of the lens barrel, and the second electromagnetic coil corresponds to the side of the magnet close to the inside of the lens barrel ; Each of the first electromagnetic coil and the second electromagnetic coil is electrically connected to the output end of the controller.

Preferably, it also includes a camera and a speaker, the camera is fixedly arranged in the middle area of the rod body, and collects the light spots projected by the anti-shake projector through the window passing through the side wall of the rod body, and the speaker is fixed Set in the cavity of the handle, the camera and the speaker are respectively electrically connected to the input end and the output end of the controller.

Preferably, a help system is also included, the help system includes a GSM communication module and an enabling switch, the GSM communication module is electrically connected to the output end of the controller, and the enabling switch is electrically connected to the input end of the controller .

Beneficial effects of the present invention: when the patient is using the rehabilitation crutch, the anti-shake projector projects a light spot to the front of the crutch. The required minimum width is equal, that is, the shaking and floating of the patient when walking plus the width of the body; at the same time, in order to avoid the shaking of the patient's hands and body, causing the image of the spot to shake, the acceleration sensor collects the shaking frequency and floating of the stick body, and sends the data Send it to the controller, and the controller will use the control signal to make the anti-shake projector project a shaking image relative to the handle. The frequency and amplitude of the shaking image are consistent with the handle held by the patient, and the shaking direction is opposite. When reaching the ground, a stationary image spot is formed, and the patient judges the occupied width of the walking section ahead according to the image spot. When the walking conditions are met, the patient can start and pass calmly. When the road ahead cannot present a complete spot image , indicating that the road section ahead does not meet the traffic conditions, and the route needs to be re-planned. The capacitive switches on both sides of the handle are used to collect the gripping habit of the patient. Because the left and right hands hold the handle in different areas, the capacitive switches on both sides can collect whether the patient is holding the left hand or the right hand. When holding time, the controller shifts the projected light spot to the right through the anti-shake projector, thus ensuring that the light spot image can be presented directly in front of the patient, achieving the purpose of humanized design and ensuring that the user can walk in a straight line.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the internal structure of the anti-shake projector of the present invention;

Fig. 3 is a schematic diagram of the connection relationship of the electrical devices of the present invention.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Embodiment one:

According to Fig. 1, Fig. 3, a kind of rehabilitation crutches, it mainly comprises: stick body 1, described stick body 1 is the tube body structure perpendicular to the ground, described stick body 1 top is vertically connected with handle 2, and described handle 2 It is a cavity structure, and the cavity in the handle 2 communicates with the inside of the stick body 1; the anti-shake projector 3, the anti-shake projector 3 is arranged inside the cavity of the handle 2, and passes through The window at the front end of the handle 2 projects a stable indicating light spot to the ground ahead; the acceleration sensor 4, which is arranged inside the cavity of the handle 2, is used to collect the shaking state of the stick body 1; the controller 5 , the input end of the controller 5 is electrically connected to the acceleration sensor 4, the output end of the controller 5 is electrically connected to the anti-shake projector 3, and is used to control the The anti-shake projector 3 works; the power supply 6 is arranged inside the end of the stick body 1 close to the handle 2 , and the power supply 6 is electrically connected to the controller 5 .

Through the above settings, when the patient is using the rehabilitation crutch, the anti-shake projector 3 projects a light spot to the front of the crutch. The required minimum widths are equal, that is, the shaking and floating of the patient when walking plus the width of the body; at the same time, in order to avoid shaking of the patient's hands and body, causing the spot image to shake, the acceleration sensor 4 collects the shaking frequency and floating of the stick body 1, and The data is sent to the controller 5, and the controller 5 uses the control signal to make the anti-shake projector 3 project a shaking image relative to the handle 2. The frequency and amplitude of the shaking image are consistent with the handle 2 held by the patient, and the shaking direction is opposite , so when the image is projected onto the ground, a stationary image spot is formed. The patient judges the occupied width of the walking section ahead according to the image spot. When the walking condition is met, the patient can calmly start and pass. If the complete spot image cannot be presented, it means that the road ahead is not suitable for traffic and the route needs to be re-planned. Among them, the acceleration sensor 4 is preferably realized by using the GY-521MPU6050 module three-dimensional angle sensor 6DOF three-six-axis accelerometer electronic gyroscope, and the controller 5 can be realized by using development boards such as arduino uno r3.

Embodiment two:

Both sides of the handle 2 are provided with capacitive switches 7 , and each of the capacitive switches 7 is electrically connected to the controller 5 .

In the above settings, the capacitive switches 7 on both sides of the handle 2 are used to collect the gripping habits of the patient. Because the left and right hands hold the handle 2 in different areas, the capacitive switches 7 on both sides can be used to collect the left grip of the patient. It is still held by the right hand. When the left hand is held, the controller 5 will shift the projected light spot to the right through the anti-shake projector 3, while the right hand holds the spot projection direction in the opposite direction, thus ensuring that the light spot image can be presented on the patient's Right in front, to achieve the purpose of humanized design, to ensure that users can walk in a straight line.

Embodiment three:

According to Fig. 2, the anti-shake projector 3 is composed of a lens barrel 8, a lens group 9, an anti-shake mechanism, a light source 11, and a spot lens 12; the lens barrel 8 is fixedly connected to the front end of the handle 2, and the The axis of the lens barrel 8 forms an included angle with the ground; the lens barrel 8 is coaxially arranged inside the lens barrel 8 through an anti-shake mechanism, and the light source 11 is fixedly arranged on the lens barrel 8 at the handle 2 At one end inside the cavity, the spot lens 12 is fixedly arranged between the lens group 9 and the light source 11 ; the anti-shake mechanism and the light source 11 are electrically connected to the controller 5 .

The anti-shake mechanism includes a fixed ring 13 coaxially wrapped on the outer wall of the lens group 9, and a plurality of radially arranged tension springs 14 are uniformly distributed around the circumference of the fixed ring 13, and the tension springs 14 are connected to the Between the inner wall of the lens barrel 8 and the outer wall of the fixed ring 13; the outer wall of the fixed ring 13 is evenly distributed with four magnets 15 in the circumferential direction in the area that does not overlap with the extension spring 14, and the inner wall of the lens barrel 8 Corresponding to each of the magnetic first electromagnetic coils 16 and second electromagnetic coils 17, each of the first electromagnetic coils 16 corresponds to the end of the magnet 15 near the outside of the lens barrel 8, and the second electromagnetic coils 17 corresponds to the side of the magnet 15 close to the inside of the lens barrel 8 ; each of the first electromagnetic coil 16 and the second electromagnetic coil 17 is electrically connected to the output end of the controller 5 .

In the above setting, the light source 11 projects the hollow pattern in the spot lens 12 outward through the lens group 9, and the anti-shake mechanism adjusts the position of the lens group 9 in the lens barrel 8 according to the control signal of the controller 5. The principle Similar to the principle of optical anti-shake in digital cameras, the difference is that the purpose of optical anti-shake in cameras is to avoid the shake of the imaging position of the external image in the photosensitive element caused by the shaking of the camera body. In this anti-shake mechanism, through the lens group 9 The position change will make the pattern fixed in the spot lens 12 in the lens barrel 8 perform controllable offset movement to different angles outside the lens barrel 8, and through this movement, the shake brought by the handle 2 to the lens barrel 8 is offset, so that the lens barrel 8. In the case of jitter, the pattern in the spot lens 12 can still be stably projected onto the ground. Wherein the lens group is suspended in the center of the lens barrel 8 through the fixed ring 13 and each tension spring 14, so that the optical axis coincides with the axis of the lens barrel 8. When the first electromagnetic coil 16 and the second electromagnetic coil 17 work, the effect of each magnet 15 The optical axis passing through the fixed ring 13 lens group 9 is offset from the axis of the lens barrel 8, and the offset changes the optical path, so that the projected spot also moves with the deflection of the optical axis, due to the acceleration sensor 4 The movement characteristics of the stick body 1 are collected, so the analysis and calculation of the controller 5 under the cooperation of the first electromagnetic coil 16 and the second electromagnetic coil 17 makes the spot image passing through the lens group 9 not disturbed by the shaking of the stick body 1, and still It can form a stable spot image on the ground, which is convenient for patients to observe and refer to.

Embodiment four:

It also includes a camera 18 and a speaker 19, the camera 18 is fixedly arranged in the middle area of the stick body 1, and collects the light spot projected by the anti-shake projector 3 through a window passing through the side wall of the stick body 1, The speaker 19 is fixedly arranged in the cavity of the handle 2 , and the camera 18 and the speaker 19 are electrically connected to the input end and the output end of the controller 5 respectively.

In the above-mentioned setting, the camera 18 collects the light spot shape projected on the ground by the anti-shake projector 3 according to a customized frequency. Usually, the light spot on a flat ground is trapezoidal, so the camera 18 transmits the collected light spot data to the controller 5, and the controller 5 After analyzing that the distortion state of the light spot is simple trapezoidal distortion, the camera 18 collects the light spot in the next cycle, but when there are obstacles on the uneven road surface, the light spot image collected by the camera 18 is a multi-dimensional geometric distortion, and the control is based on The analysis result is inconsistent with the simple trapezoidal distortion, and now the controller 5 sends an alarm prompt sound through the loudspeaker 19 to make the patient pay attention to safety or re-plan the walking route.

Embodiment five:

Also includes a help system, the help system includes a GSM communication module 20 and an enable switch 21, the GSM communication module 20 is electrically connected to the output end of the controller 5, and the enable switch 21 is connected to the input end of the controller 5 electrical connection.

Through the above settings, during the use of the rehabilitation crutches, the patient activates the help-seeking system by enabling the switch 21. After that, once the patient encounters an emergency, such as falling and unable to save himself, that is, when the rehabilitation crutches are out of hand, the capacitive switch 7 cannot detect the living body Skin contact, at this time the help system starts to work, by directly dialing the preset phone number and sending a voice help message to it. Wherein the GSM communication module 20 can be realized by using the punctual atom ATK-SIM800C GSM GPRS module SMS phone development board, the preset of its phone number and the storage of the voice help information can inquire about the specifications and embodiments of the development board, which are no longer here repeat.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (6)

1. A kind of rehabilitation crutch, is characterized in that, comprises: A rod body, the rod body is a tubular structure perpendicular to the ground, a handle is vertically connected to the top of the rod body, the handle is a cavity structure, and the cavity in the handle communicates with the inside of the rod body; An anti-shake projector, the anti-shake projector is arranged inside the cavity of the handle, and projects a stable indicating light spot to the ground ahead through the window passing through the front end of the handle; an acceleration sensor, the acceleration sensor is arranged inside the handle cavity, and is used to collect the shaking state of the stick body; a controller, the input end of the controller is electrically connected to the acceleration sensor, the output end of the controller is electrically connected to the anti-shake projector, and is used to control the anti-shake according to the shaking of the stick body projector work; A power supply, the power supply is arranged inside the end of the stick body close to the handle, and the power supply is electrically connected to the controller. 2 . The rehabilitation crutch according to claim 1 , wherein capacitive switches are provided on both sides of the handle, and each of the capacitive switches is electrically connected to the controller. 3 . 3. A rehabilitation crutch according to claim 1, characterized in that: the anti-shake projector is composed of a lens barrel, a lens group, an anti-shake mechanism, a light source, and a spot lens; the lens barrel is fixed to the handle The front end is fixedly connected, and the axis of the lens barrel forms an included angle with the ground; the lens barrel is coaxially arranged inside the lens barrel through an anti-shake mechanism, and the light source is fixedly arranged on the lens barrel at the At one end inside the handle cavity, the spot lens is fixedly arranged between the lens group and the light source; the anti-shake mechanism and the light source are electrically connected to the controller. 4. A rehabilitation crutch according to claim 3, characterized in that: the anti-shake mechanism includes a fixed ring coaxially wrapped on the outer wall of the lens group, and the fixed ring is uniformly distributed with a number of radial Arranged tension springs, the tension springs are connected between the inner wall of the lens barrel and the outer wall of the fixed ring; the outer wall of the fixed ring has four magnets evenly distributed around the circumference in the area that does not overlap with the tension spring , the inner wall of the lens barrel corresponds to each of the magnetic first electromagnetic coils and second electromagnetic coils, each of the first electromagnetic coils corresponds to the end of the magnet close to the outside of the lens barrel, and the second The electromagnetic coil corresponds to the side of the magnet close to the inside of the lens barrel; each of the first electromagnetic coil and the second electromagnetic coil is electrically connected to the output end of the controller. 5. A kind of rehabilitation crutch according to claim 1, is characterized in that: also comprise camera and loudspeaker, described camera is fixedly arranged in the middle area in described stick body, and collects through the window that runs through described stick body side wall The light spot projected by the anti-shake projector, the loudspeaker is fixedly arranged in the cavity of the handle, and the camera and the loudspeaker are respectively electrically connected to the input end and the output end of the controller. 6. A kind of rehabilitation crutch according to claim 1, it is characterized in that: also comprise help-seeking system, described help-seeking system comprises GSM communication module and enabling switch, and described GSM communication module is electrically connected with the output end of described controller , the enabling switch is electrically connected to the input terminal of the controller.