Postoperative oral and tooth pronunciation rehabilitation training equipment for cerebral apoplexy

Abstract

Electrode plates are used for detecting electromyographic signals of laryngeal muscles when a patient sounds, a plurality of groups of laryngeal muscle guiding devices drive the corresponding laryngeal muscles according to changes of the electromyographic signals of the laryngeal muscles and by means of precise traction of a micro servo motor, and the corresponding laryngeal muscles are driven by the laryngeal muscle guiding devices according to the preset stroke distance, frequency and speed. And stretching and contracting laryngeal muscle elastic relieving movement is performed to form linkage of electromyographic signal acquisition, laryngeal muscle feedback and re-acquisition. Meanwhile, a flow channel made of a heat conduction material is arranged at the position of the massage head in a matched mode, corresponding laryngeal muscles are stimulated through temperature changes of circulating liquid, the patient is guided to feel different state changes of the laryngeal muscles during sounding, the sounding changes caused by the changes are clearly recognized, and therefore new laryngeal muscle memory is formed.

Description

Technical Field

[0001] This invention relates to the field of medical devices for speech disorders, specifically to a post-stroke speech rehabilitation training device. Background Technology

[0002] Apraxia of speech is a third type of disorder, distinct from aphasia and neurological speech disorders. It can be caused by stroke, traumatic brain injury, or neurodegenerative diseases, and affects speech production by influencing the planning and programming stages of speech production, leading to varying degrees of speech and prosody disorders.

[0003] Voice disorders are generally divided into organic dysphonia (OD) and functional dysphonia (FD). Organic dysphonia is mostly caused by organic lesions or systemic diseases, while functional dysphonia refers to diseases in which the anatomical structure of the vocal organs is normal but the quality of the voice is abnormal. The causes and clinical manifestations are diverse.

[0004] Functionally, it can be divided into high-function (hyper-FD) and low-function (hypo-FD). High-function dysphonia is characterized by increased neck muscle tension or spasm, narrowing of the laryngeal cavity, tension of the vocal cords, poor exposure of the glottis, and excessive adduction of the false vocal cords during phonation. Low-function dysphonia is characterized by decreased neck muscle tension, relaxation and weakness, decreased vocal cord tension, and incomplete closure of the glottis during phonation.

[0005] For the assessment of high-functioning voice disorders, in the visual dimension, it manifests as narrowing of the laryngeal cavity, poor exposure of the glottis, shortening of the anteroposterior diameter of the glottis, and compensatory adduction of the ventricular folds. The vocal cords appear normal, but their tension is increased and they close too tightly. In the auditory dimension, the phonation is characterized by excessive force, compression, hoarseness, and roughness. In the tactile dimension, breathing is shallow during phonation, neck muscles are tense, jugular veins are distended, the base of the neck is thickened, and tremor can be felt during phonation upon palpation. In the subjective dimension, patients often feel difficulty in phoning, vocal fatigue, accompanied by neck pain, tightness, foreign body sensation, pressure, and dryness of the throat.

[0006] This demonstrates that the tension and spasm of the neck muscles play a crucial role in the development of speech disorders. Examples include the trapezius, suprahyoid muscles, infrahyoid muscles, and cricothyroid muscles—all neck muscles that affect vocalization.

[0007] As per the instruction manual Figure 1As shown, (1) the upper fibers of the trapezius muscle run upwards and work in conjunction with the levator scapulae and rhomboid muscles to perform shoulder shrugs, extension and lateral flexion of the head and neck, and rotation to the opposite side. It is the muscle in the shoulder and neck that is most prone to excessive tension and strain, which in turn affects pronunciation; (2) the suprahyoid muscle group includes the digastric muscle, stylohyoid muscle, mylohyoid muscle, and geniohyoid muscle. It is located between the hyoid bone, mandible, and skull base. It can elevate the hyoid bone to raise the tongue and pull down the mandible to open the mouth when the hyoid bone is fixed; (3) the infrahyoid muscle group includes the sternohyoid muscle. The skeletal muscles, omohyoid muscles, sternothyroid muscles, and thyrohyoid muscles are located on both sides of the midline below the hyoid bone in the anterior part of the neck, in front of the larynx, trachea, and thyroid gland. They play a role in lowering the hyoid bone and larynx. The suprahyoid muscle group and the infrahyoid muscle group have an important influence on the movement and positioning of the larynx, tongue, and lips during vocalization. (4) The cricothyroid muscle connects the posteromedial surface of the thyroid cartilage and the cricoid cartilage. Contraction of the cricothyroid muscle will cause the thyroid cartilage to move closer to the cricoid cartilage and away from the arytenoid cartilage, thereby lengthening and tightening the vocal cords. It plays an important role in the pronunciation of high notes and unvoiced notes.

[0008] In particular, the suprahyoid muscles primarily function to pull the hyoid bone upwards. These muscles include the digastric, stylohyoid, mylohyoid, and geniohyoid muscles. They work together to provide a stable foundation for tongue movement and influence the position of the larynx, thereby regulating phonation.

[0009] The infrahyoid muscles primarily function to stabilize the larynx by resisting gravity. These muscles include the thyrohyoid muscle, which, together with the suprahyoid muscles, regulate the vertical movement and posture of the larynx, keeping it relatively fixed and balanced, which is beneficial for vocalization.

[0010] The existing problem is that current rehabilitation programs involve manually guiding patients through vocal training, such as repeatedly uttering vowels until pronunciation approaches normal. During this process, patients can only rely on sound comparison to correct their pronunciation and adjust their articulation based on their own perception of their mouth, tongue, and throat. This is both time-consuming and laborious, and due to individual patient differences, it is difficult to clearly articulate and communicate specifically how to adjust the muscle state of the mouth, tongue, and throat, which is currently a major challenge in rehabilitation treatment.

[0011] Therefore, it is necessary to design an articulation rehabilitation training device to overcome the above problems, identify the electromyographic characteristics of the muscles related to the patient's rehabilitation process, help the patient adjust and guide the tension of the relevant laryngeal muscles, thereby helping the patient overcome speech disorders and restore clear speech. Summary of the Invention

[0012] In order to overcome the shortcomings of the above-mentioned technologies, the present invention provides a speech rehabilitation training device after stroke.

[0013] The technical solution of the present invention includes several sets of laryngeal muscle guiding devices. Each laryngeal muscle guiding device includes an electrode plate, an arc-shaped guide rail, a first traction massage head, a second traction massage head, a relaxation drive mechanism, and a contraction drive mechanism. The arc-shaped guide rail is set with an arc corresponding to the arc of the skin of the laryngeal muscle to be tested on the patient. It includes a contact end face facing the neck and an mounting end face facing away from it. The arc-shaped guide rail is provided with a sliding groove that extends from the contact end face to the mounting end face. The arc-shaped guide rail keeps the travel direction of the sliding groove aligned with the contraction direction of the laryngeal muscle to be tested on the patient.

[0014] Both the first and second traction massage heads are provided with adhesive parts and are respectively adhered and fixed to the neck surface at both ends of the direction of contraction of the laryngeal muscle to be tested. Both the first and second traction massage heads are provided with sliding shafts that extend into the sliding groove for sliding cooperation. The relaxation drive mechanism and the contraction drive mechanism are linked and cooperate with the first and second traction massage heads to drive the first and second traction massage heads to move closer or further away from each other along the sliding groove, and drive the laryngeal muscle to be tested of the patient to relax or contract.

[0015] The electrode pads are disposed between the first traction massage head and the second traction massage head, and are attached to the skin of the patient's neck at the location of the laryngeal muscle to be tested;

[0016] The stretching drive mechanism and the contraction drive mechanism, based on the changes in the laryngeal muscle electromyographic signals detected by the electrode pads, jointly control the first traction massage head and the second traction massage head to stretch or contract the laryngeal muscles.

[0017] A further feature of the present invention is as follows: the stretching drive mechanism includes a first micro servo motor, a pair of guide wheels, and two first elastic traction ropes. The pair of guide wheels are respectively rotatably disposed at two ends of the arc-shaped guide rail in the stroke direction. The first micro servo motor is disposed on one side of the mounting end face of the arc-shaped guide rail. A first winch is disposed on the first micro servo motor. One end of each of the two first elastic traction ropes is fixedly connected to the first winch, and the other end passes around the guide wheels and is fixedly connected to the first traction massage head or the second traction massage head. The first winch rotates to tighten the two first elastic traction ropes, driving the first traction massage head and the second traction massage head to move away from each other.

[0018] The retraction drive mechanism includes a second micro servo motor and two second elastic traction ropes. The second micro servo motor is located on one side of the mounting end face of the arc-shaped guide rail. A second winch is installed on the second micro servo motor. One end of each of the two second elastic traction ropes is fixedly connected to the second winch, and the other end is fixedly connected to the sliding shaft of the first traction massage head or the second traction massage head. The second winch rotates to tighten the two second elastic traction ropes, driving the first traction massage head and the second traction massage head to move closer to each other.

[0019] A further feature of the present invention is that the first traction massage head and the second traction massage head are made of thermally conductive material and have internal flow channels, which include inlet pipes and outlet pipes. The device also includes a liquid circulation device, which includes a liquid reservoir, a circulation pump, a cooling element, a heating element, and a temperature sensor. The temperature sensor detects the temperature of the liquid in the liquid reservoir. The circulation pump pumps the liquid in the liquid reservoir into the flow channels. The cooling element and the heating element heat or cool the liquid in the liquid reservoir according to electromyographic signals and temperature sensor signals.

[0020] A further feature of the present invention is that the laryngeal muscle guiding device also includes a bracket, which is disposed between the first traction massage head and the second traction massage head. One end of the bracket facing the patient's neck is provided with a support platform for supporting electrode pads, and the other end is provided with an adjusting rod that extends into a sliding groove to slide in the stroke direction and rise and fall relative to the neck. The adjusting rod is provided with threads and a pair of nuts, which are respectively screwed into the adjusting rod threads on the contact end face and the mounting end face of the arc-shaped guide rail.

[0021] The beneficial effects of this invention are as follows: Electrode pads are used to detect the electromyographic signals of each laryngeal muscle during vocalization. Several sets of laryngeal muscle guiding devices, based on changes in the electromyographic signals of each laryngeal muscle, utilize the precise traction of miniature servo motors to drive the corresponding laryngeal muscles to perform elastic and soothing movements of expansion and contraction according to a preset travel distance, frequency, and speed. This forms a linkage between electromyographic signal acquisition, feedback to the laryngeal muscles, and re-acquisition. Simultaneously, the massage head is equipped with channels and liquid sacs containing heat-conducting material. Through changes in the temperature of the circulating liquid, the corresponding laryngeal muscles are stimulated, guiding the patient to perceive the different states of each laryngeal muscle during vocalization, clearly recognizing the vocal changes brought about by these changes, thereby forming new laryngeal muscle memory. Attached Figure Description

[0022] Figure 1 The structure of this embodiment of the invention Figure 1 ;

[0023] Figure 2 The structure of this embodiment of the invention Figure 2 ;

[0024] Figure 3 The structure of this embodiment of the invention Figure 3 ;

[0025] Figure 4 The structure of this embodiment of the invention Figure 4 ;

[0026] Figure 5 The structure of this embodiment of the invention Figure 5 .

[0027] Among them, 11-trapezius muscle, 12-suprahyoid muscle group, 13-infrahyoid muscle group, 14-crictothyroid muscle, 2-laryngeal muscle guiding device, 21-electrode plate, 22-arc-shaped guide rail, 221-fitting end face, 222-mounting end face, 223-sliding groove, 23-first traction massage head, 231-adhesive part, 232-sliding shaft, 24-second traction massage head, 31-first micro servo motor, 32-guide wheel, 33-first elastic traction rope, 34-second micro servo motor, 35-second elastic traction rope, 36-inlet pipe, outlet pipe, 381-support, 382-adjusting rod, 383-nut.

[0028] To better illustrate this embodiment, some parts in the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the actual size of the product. Furthermore, the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Detailed Implementation

[0029] To make the technical solution and advantages of this application clearer, the technical solution of this application will be described in a clearer and more complete manner below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of this application, and are only used to explain this application, not to limit this application. It should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings. Other related parts can be referred to the general design. In the absence of conflict, the embodiments and technical features in the embodiments of this application can be combined with each other to obtain new embodiments.

[0030] The invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-5 As shown,

[0031] A post-stroke speech rehabilitation training device includes several sets of laryngeal muscle guiding devices 2. Each laryngeal muscle guiding device 2 includes an electrode 21, an arc-shaped guide rail 22, a first traction massage head 23, a second traction massage head 24, a relaxation drive mechanism, and a contraction drive mechanism. The arc-shaped guide rail 22 is set with an arc corresponding to the arc of the skin of the laryngeal muscle to be tested on the patient. It includes a contact end face 221 facing the neck and an mounting end face 222 facing away from it. The arc-shaped guide rail 22 is provided with a sliding groove 223 that runs through the contact end face 221 to the mounting end face 222. The arc-shaped guide rail 22 keeps the travel direction of the sliding groove 223 aligned with the contraction direction of the laryngeal muscle to be tested on the patient.

[0032] Both the first traction massage head 23 and the second traction massage head 24 are provided with adhesive parts 231, which are respectively adhered and fixed to the neck surface at both ends of the direction of contraction of the laryngeal muscle to be tested. Both the first traction massage head 23 and the second traction massage head 24 are provided with sliding shafts 232 that extend into the sliding groove 223 for sliding cooperation. The relaxation drive mechanism and the contraction drive mechanism are linked and cooperate with the first traction massage head 23 and the second traction massage head 24 to drive the first traction massage head 23 and the second traction massage head 24 to move closer or further away from each other along the sliding groove 223, and to drive the laryngeal muscle to be tested of the patient to relax or contract.

[0033] The electrode pad 21 is disposed between the first traction massage head 23 and the second traction massage head 24, and is attached to the skin of the neck at the location of the laryngeal muscle to be tested on the patient.

[0034] The stretching drive mechanism and the contraction drive mechanism, based on the changes in the laryngeal muscle electromyographic signals detected by the electrode plate 21, jointly control the first traction massage head 23 and the second traction massage head to stretch or contract the laryngeal muscles.

[0035] The stretching drive mechanism includes a first micro servo motor 31, a pair of guide wheels 32, and two first elastic traction ropes 33. The pair of guide wheels 32 are respectively rotatably disposed at two ends of the arc-shaped guide rail 22 in the travel direction. The first micro servo motor 31 is disposed on one side of the mounting end face 222 of the arc-shaped guide rail 22. A first winch is disposed on the first micro servo motor 31. One end of each of the two first elastic traction ropes is fixedly connected to the first winch, and the other end passes around the guide wheels 32 and is fixedly connected to the first traction massage head 23 or the second traction massage head 24. The first winch rotates to tighten the two first elastic traction ropes 33, driving the first traction massage head 23 and the second traction massage head 24 to move away from each other.

[0036] The retraction drive mechanism includes a second micro servo motor 34 and two second elastic traction ropes 35. The second micro servo motor 34 is disposed on one side of the mounting end face 222 of the arc-shaped guide rail 22. A second winch is disposed on the second micro servo motor 34. One end of each of the two second elastic traction ropes is fixedly connected to the second winch, and the other end is fixedly connected to the sliding shaft 232 of the first traction massage head 23 or the second traction massage head 24. The second winch rotates to tighten the two second elastic traction ropes 35, driving the first traction massage head and the second traction massage head 24 to move closer to each other.

[0037] The first traction massage head 23 and the second traction massage head 24 are made of thermally conductive material and have internal flow channels, which include inlet pipes and outlet pipes 36. The device also includes a liquid circulation device, which includes a liquid reservoir, a circulation pump, a cooling element, a heating element, and a temperature sensor. The temperature sensor detects the temperature of the liquid in the liquid reservoir. The circulation pump pumps the liquid in the liquid reservoir into the flow channels. The cooling element and the heating element heat or cool the liquid in the liquid reservoir according to electromyographic signals and temperature sensor signals.

[0038] A further feature of the present invention is that the laryngeal muscle guiding device 2 also includes a bracket, which is disposed between the first traction massage head 23 and the second traction massage head. One end of the bracket facing the patient's neck is provided with a support platform 381 for supporting the electrode sheet 21, and the other end is provided with an adjusting rod 382 that extends into the sliding groove 223 to slide in the stroke direction and rise and fall relative to the neck. The adjusting rod 382 is provided with threads and a pair of nuts 383. The pair of nuts 383 are respectively screwed into the adjusting rod 382 at the contact end face 221 and the mounting end face 222 of the arc-shaped guide rail 22.

[0039] The technical solution of this application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. A speech rehabilitation training device after stroke, characterized in that: The package includes several sets of laryngeal muscle guiding devices, each device comprising an electrode plate, an arc-shaped guide rail, a first traction massage head, a second traction massage head, a relaxation drive mechanism, and a contraction drive mechanism. The arc-shaped guide rail is configured to correspond to the curvature of the skin of the laryngeal muscle to be tested on the patient, and includes a contact end face facing the neck and an mounting end face facing away from it. The arc-shaped guide rail is provided with a sliding groove that extends from the contact end face to the mounting end face, and the arc-shaped guide rail keeps the direction of the sliding groove aligned with the direction of contraction of the laryngeal muscle to be tested on the patient. Both the first and second traction massage heads are provided with adhesive parts and are respectively adhered and fixed to the neck surface at both ends of the direction of contraction of the laryngeal muscle to be tested. Both the first and second traction massage heads are provided with sliding shafts that extend into the sliding groove for sliding cooperation. The relaxation drive mechanism and the contraction drive mechanism are linked and cooperate with the first and second traction massage heads to drive the first and second traction massage heads to move closer or further away from each other along the sliding groove, and drive the laryngeal muscle to be tested of the patient to relax or contract. The electrode pads are disposed between the first traction massage head and the second traction massage head, and are attached to the skin of the patient's neck at the location of the laryngeal muscle to be tested; The stretching drive mechanism and the contraction drive mechanism, based on the changes in the laryngeal muscle electromyographic signals detected by the electrode pads, jointly control the first traction massage head and the second traction massage head to stretch or contract the laryngeal muscles.

2. The post-stroke speech rehabilitation training device according to claim 1, characterized in that: The stretching drive mechanism includes a first micro servo motor, a pair of guide wheels, and two first elastic traction ropes. The pair of guide wheels are respectively rotatably disposed at the two ends of the arc-shaped guide rail in the stroke direction. The first micro servo motor is disposed on one side of the mounting end face of the arc-shaped guide rail. A first winch is disposed on the first micro servo motor. One end of each of the two first elastic traction ropes is fixedly connected to the first winch, and the other end passes around the guide wheels and is fixedly connected to the first traction massage head or the second traction massage head. The first winch rotates to tighten the two first elastic traction ropes, driving the first traction massage head and the second traction massage head to move away from each other. The retraction drive mechanism includes a second micro servo motor and two second elastic traction ropes. The second micro servo motor is located on one side of the mounting end face of the arc-shaped guide rail. A second winch is installed on the second micro servo motor. One end of each of the two second elastic traction ropes is fixedly connected to the second winch, and the other end is fixedly connected to the sliding shaft of the first traction massage head or the second traction massage head. The second winch rotates to tighten the two second elastic traction ropes, driving the first traction massage head and the second traction massage head to move closer to each other.

3. The post-stroke speech rehabilitation training device according to claim 2, characterized in that: The first and second traction massage heads are made of thermally conductive materials and have internal flow channels, including inlet and outlet pipes. The device also includes a liquid circulation device, which includes a reservoir, a circulation pump, a cooling element, a heating element, and a temperature sensor. The temperature sensor detects the temperature of the liquid in the reservoir. The circulation pump pumps the liquid in the reservoir into the flow channels. The cooling element and the heating element heat or cool the liquid in the reservoir based on electromyographic signals and temperature sensor signals.

4. The post-stroke speech rehabilitation training device according to claim 3, characterized in that: The laryngeal muscle guiding device also includes a bracket, which is disposed between the first traction massage head and the second traction massage head. One end of the bracket facing the patient's neck is provided with a support platform for supporting electrode pads, and the other end is provided with an adjusting rod that extends into the sliding groove to slide in the stroke direction and rise and fall relative to the neck. The adjusting rod is provided with threads and a pair of nuts, which are respectively screwed into the threaded end face of the arc-shaped guide rail and the mounting end face of the adjusting rod.

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