Adjustable nasopharynx cancer mouth opening training device

Abstract

The invention discloses an adjustable nasopharynx cancer mouth opening training device, which belongs to the technical field of medical instruments and comprises a shell, a mouth opening assembly is arranged in the shell, a liquid suction assembly is arranged at the end part of the mouth opening assembly, and a fixing belt is fixed on the outer side wall of the shell. A liquid storage assembly for absorbing and storing saliva discharged from the interior of the liquid absorption assembly is arranged at the bottom of the shell; according to the device, two jacking pieces in the mouth opening assembly synchronously and reversely reciprocate, so that the oral cavity of a patient is driven to be repeatedly opened, the natural mouth opening action can be well simulated, the mouth opening exercise effect of the patient is improved, saliva in the mouth of the patient is sucked and discharged in time through the liquid suction assembly, and the patient is more comfortable to use. Compared with the prior art, discomfort caused by saliva accumulation and even outflow in the mouth opening training process is avoided, the safety of the training process is improved, the saliva is absorbed and stored through the liquid storage assembly, the situation that the saliva flows back into the oral cavity is greatly reduced, and therefore the saliva can be effectively collected, and cleaning is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to an adjustable mouth opening training device for nasopharyngeal carcinoma. Background Art

[0002] Difficulty in opening the mouth is one of the common sequelae after radical radiotherapy for nasopharyngeal carcinoma. The main reason is that radiotherapy causes sclerosis of the temporomandibular joint and fibrosis of the masticatory muscles, which manifests as a reduction in the distance between the incisors when opening the mouth, affecting the patient's quality of life. The traditional method is to ask the patient to practice mouth opening activities after radiotherapy. Persistent mouth opening exercises can reduce the occurrence of difficulty in opening the mouth. Tools such as corks and empty medicine bottles are often used to assist patients in supporting their mouths for mouth opening training. Although the above training tools are easy to obtain, they are made of rough materials and have fixed sizes. They fail to provide patients with individualized sizes, have many risk factors, lack scientificity, and affect the training effect. Therefore, solutions to this problem have been proposed in the prior art.

[0003] For example, Chinese patent publication number CN212490658U discloses a mouth-opening training device for nasopharyngeal carcinoma, which effectively solves the problem of inconvenience in using existing mouth-opening training devices; it includes a left-right fixed box with an opening to the right, and V-shaped support rods are hinged on the upper and lower sides of the fixed box respectively, the openings of the two support rods are opposite and can swing relative to or opposite to each other, and the right end of the support rod is provided with an arc plate with an upper and lower axial direction and an opening to the right through a connecting plate in the left-right direction, the arc plate is located on the right side of the fixed box, and a limit plate that can move up and down is provided on the right side of the fixed box, and the lower end surface of the limit plate can contact the upper surface of the connecting plate; a push rod and two arc plates are provided to facilitate opening and closing of the patient's mouth and exercise the opening and closing ability of the patient's mouth, and a limit plate is provided to facilitate controlling the size of the patient's oral opening, so that the patient can adjust according to his or her own recovery condition. This structure is simple, easy to operate, novel in conception, and highly practical.

[0004] For example, Chinese patent publication number CN212880053U discloses an adjustable nasopharyngeal carcinoma mouth opening training device, which includes a rubber shell, a rotating handle and an adjusting device. The rubber shell is cylindrical, one end of which is rotatably connected to the rotating handle, and the other end is provided with a breathing hole; the adjusting device is installed in the rubber shell and fixedly connected to the rubber shell, and the rotating handle is fixedly connected to the adjusting device; the scheme rotates the screw by rotating the handle to adjust the position of the ring on the screw, thereby changing the relative position of the arc support piece and the ring in the horizontal direction, thereby adjusting the angle of the active support rod, thereby adjusting the distance between the two arc support pieces, so that the size of the device is adjustable.

[0005] In the above-mentioned multiple applications, mouth opening training is performed by reciprocating mouth opening movement or by plugging fixed mouth opening. During the mouth opening training process, a single training time is relatively long, and saliva in the oral cavity is easily accumulated or even flows out, causing discomfort to the patient during training. The accumulated saliva is easily inhaled or flows into the airway, causing certain risks, which can easily lead to interruption of the training process and affect the overall training effect. At the same time, it is impossible to have both reciprocating mouth opening and fixed mouth opening, and the training method is relatively single.

[0006] Therefore, it is necessary to provide an adjustable nasopharyngeal carcinoma mouth opening training device to solve the above technical problems. Summary of the invention

[0007] The purpose of the present invention is to provide an adjustable nasopharyngeal carcinoma mouth opening training device to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the present invention solves the above-mentioned technical problem as follows: an adjustable nasopharyngeal carcinoma mouth opening training device, comprising a shell, the shell being open at one end, a micro self-locking motor being fixed on the outer wall of the closed end of the shell opposite to the open end, a mouth opening component being arranged in the shell for transmission connection with the micro self-locking motor and assisting the patient in automatic and repeated mouth opening training, and a liquid aspiration component being arranged at the end of the mouth opening component for cooperating with the mouth opening component to automatically suck and discharge saliva in the patient's mouth.

[0009] As a further solution of the present invention, the opening assembly includes a triangular block located inside the shell and reciprocatingly moving, and a second connecting rod is slidably fitted on the inclined surfaces on both sides of the triangular block, the second connecting rod slides through the side wall of the shell and a connecting plate is fixed to the end located outside the shell, the end of the connecting plate away from the second connecting rod is fixed with a first connecting rod that slides through the side wall of the shell, and the end of the first connecting rod located inside the shell is fixed with a joint plate, the joint plate extends from the opening end of the shell and an arc plate is fixed to the end of the joint plate away from the first connecting rod, the two arc plates respectively contact the upper and lower teeth and the two arc plates are arranged parallel to each other.

[0010] As a further solution of the present invention, an eccentric wheel is fixed on the output end of the micro self-locking motor, and a sliding rod is slidably fitted on the eccentric wheel. The sliding rod slides through the side wall of the outer shell and one end of the sliding rod located inside the outer shell is fixed to the triangular block. A limiting plate located on the side of the triangular block away from the sliding rod is fixed on the inner wall of the outer shell. A spring is arranged between the triangular block and the limiting plate, and both ends of the spring are respectively fixed to the sides of the triangular block and the limiting plate close to each other, and the ends of the two second connecting rods and the sliding rod are set to arc ends.

[0011] As a further solution of the present invention, a plurality of POM sleeves are fixed in the side wall of the outer shell, the second connecting rod and the first connecting rod pass through the POM sleeves and the side surfaces of the second connecting rod and the first connecting rod are slidably fitted with the inner side walls of the POM sleeves, and rubber pads are fixed on the sides of the two arc plates that are away from each other.

[0012] As a further solution of the present invention, the liquid suction component includes a third connecting rod fixed at the bottom of the triangular block and arranged parallel to the sliding rod, a cylindrical shell coaxially arranged with the third connecting rod is provided inside the outer shell, the end of the third connecting rod away from the triangular block is inserted into the cylindrical shell and the end of the third connecting rod located inside the cylindrical shell is fixed with a piston plate tightly fitting with the inner wall of the cylindrical shell, a liquid passage cavity is provided inside the arc plate in contact with the lower tooth and a liquid inlet connected to the liquid passage cavity is provided on the side of the arc plate away from the joint plate, and an infusion hose is connected between the inside of the cylindrical shell and the liquid passage cavity.

[0013] As a further solution of the present invention, a plurality of the liquid inlets are provided and the plurality of liquid inlets are equidistantly distributed, and a soft arc-shaped tube communicating with the liquid passage cavity is fixed in each of the plurality of liquid inlets.

[0014] As a further solution of the present invention, a drainage pipe connected to the interior of the cylindrical shell is fixed at the bottom of the cylindrical shell. The drainage pipe is arranged in the middle of the cylindrical shell. The end of the drainage pipe away from the cylindrical shell passes through the bottom side wall of the outer shell and is fixed to the bottom side wall of the outer shell.

[0015] As a further solution of the present invention, a liquid storage component for absorbing and storing saliva discharged from the liquid absorption component is provided at the bottom of the shell, and the liquid storage component includes a liquid storage box fixed on the outer wall of the bottom end of the shell, the interior of the liquid storage box is connected to the discharge pipe, a sponge block is provided in the liquid storage box, and an opening is opened on the side surface of one end of the liquid storage box.

[0016] As a further solution of the present invention, a first gap is provided between the top surface of the sponge block and the outer side wall of the bottom end of the shell, and a second gap is provided between the end of the sponge block close to the through opening and the inner side wall of the liquid storage box.

[0017] As a further solution of the present invention, a notch is provided on the side of the liquid storage box, a cover plate is hinged in the notch, and a lifting boss is fixed on the outer side wall of the cover plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The two ejectors in the mouth opening assembly are synchronously reciprocated in opposite directions, thereby driving the patient's mouth to open repeatedly, thereby helping the patient to perform mouth opening training, which can better simulate the natural mouth opening movement, is more conducive to the exercise and recovery of muscles and joints, and effectively improves the patient's mouth opening training effect. The training method is simple to operate, and the strength and frequency of the ejectors can be adjusted according to the actual situation of the patient, so as to achieve personalized training effects, effectively avoiding the problem that the patient's mouth cannot perform normal opening and closing movements after the traditional method of inserting a support member such as a wooden plug into the patient's mouth, causing the patient to feel sore and uncomfortable oral muscles, effectively reducing the patient's discomfort during training, and at the same time, the two ejectors in the mouth opening assembly can be driven to lock their positions through a micro self-locking motor, so that the patient can perform quantitative mouth opening training, which can ensure that the patient maintains a specific mouth opening size during the training process, meet the needs of different patients, and thus provide patients with a variety of training options, effectively improving the overall scope of application and practicality; 2. During the mouth opening training, a certain negative pressure suction force is generated by the suction component, so that the saliva in the patient's mouth is sucked out in time, avoiding the discomfort caused by saliva accumulation or even outflow during the mouth opening training, effectively preventing the risk of saliva aspiration or flowing into the airway, ensuring the safety of the training process, and timely removal of saliva also helps to keep the oral cavity clean and reduce bacterial infection; 3. The liquid storage component absorbs and stores saliva, greatly reducing the reflux of saliva into the oral cavity, so that the saliva can be effectively collected and convenient for cleaning. At the same time, the liquid storage component effectively reduces the reflux of airflow into the oral cavity, further improving the patient's training comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments: Figure 1 The overall structure of the present invention is three-dimensional Figure 1 ; Figure 2 The overall structure of the present invention is three-dimensional Figure 2 ; Figure 3 The internal structure of the housing of the present invention is shown in FIG. Figure 1 ; Figure 4 The internal structure of the housing of the present invention is shown in FIG. Figure 2 ; Figure 5 The internal structure of the housing of the present invention is shown in FIG. Figure 3 ; Figure 6 for Figure 5 A magnified view of the structure at center; Figure 7 It is a schematic diagram of the local structure of the opening component of the present invention; Figure 8 It is a schematic diagram of the local structure of the liquid inlet of the present invention; Fig. 9 It is a schematic diagram of the structure of the liquid storage component of the present invention.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Opening assembly; 101. Arc plate; 102. Rubber pad; 103. Joint plate; 104. First connecting rod; 105. Connecting plate; 106. Second connecting rod; 107. Arc end; 108. Triangular block; 109. POM sleeve; 110. Spring; 111. Limiting plate; 112. Sliding rod; 113. Eccentric wheel; 2. Liquid suction assembly; 201. Soft arc tube; 202. Liquid passage cavity; 203, infusion hose; 204, cylinder shell; 205, discharge tube; 206, piston plate; 207, third connecting rod; 208, liquid inlet; 3, liquid storage assembly; 301, liquid storage box; 302, sponge block; 303, second gap; 304, through port; 305, notch; 306, cover plate; 307, lifting boss; 4, outer shell; 5, micro self-locking motor; 6, fixing belt; 7, screw hole. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the embodiments.

[0022] See also Figure 1-9The present invention provides an adjustable nasopharyngeal carcinoma mouth opening training device, comprising a shell 4, the shell 4 is open at one end, a micro self-locking motor 5 is fixed on the outer wall of the closed end of the shell 4 opposite to the open end, the specific model of the micro self-locking motor 5 can be selected as 31ZY, a mouth opening component 1 is arranged in the shell 4, which is transmission-connected with the micro self-locking motor 5 and assists the patient in automatically and repeatedly opening the mouth training, and a liquid suction component 2 is arranged at the end of the mouth opening component 1, which cooperates with the mouth opening component 1 to automatically suck and discharge saliva in the patient's oral cavity, a fixing belt 6 is fixed on the outer wall of the shell 4, and both ends of the fixing belt 6 are fixed to the outer wall of the shell 4, and a liquid storage component 3 is arranged at the bottom of the shell 4 for absorbing and storing saliva discharged from the liquid suction component 2; when using it, the two pushers in the mouth opening component 1 are first inserted into the patient's mouth and placed between the patient's upper and lower teeth, and the fixing belt 6 is pulled to fix the device on the patient's head, the micro self-locking motor 5 is connected to the power supply, and the micro self-locking motor 5 is started to work, and the micro self-locking motor 5 is driven to drive the micro self-locking motor 5 to work. The movable mouth opening component 1 works, and the two pushers in the mouth opening component 1 synchronously reciprocate in the opposite direction, thereby driving the patient's mouth to open repeatedly, thereby helping the patient to perform mouth opening training, which can better simulate the natural mouth opening movement, is more conducive to the exercise and recovery of muscles and joints, and effectively improves the patient's mouth opening training effect. The training method is simple to operate, and the strength and frequency of the pushers can be adjusted according to the actual situation of the patient, so as to achieve personalized training effects, effectively avoiding the problem that the patient's mouth cannot perform normal opening and closing movements after the traditional method of inserting a support member such as a wooden plug into the patient's mouth, causing the patient to feel sore and uncomfortable oral muscles, effectively reducing the patient's discomfort during training, and at the same time, the micro self-locking motor 5 can also drive the two pushers in the mouth opening component 1 to lock the position, so that the patient can perform quantitative mouth opening training, which can ensure that the patient maintains a specific mouth opening size during the training process, meet the needs of different patients, thereby providing patients with a variety of training options, and effectively improving the overall scope of application and practicality; During the mouth opening training process, the suction end of the suction component 2 is extended into the patient's oral cavity, and the suction component 2 is driven to work by the mouth opening component 1, and a certain negative pressure suction force is generated by the suction component 2, so that the saliva in the patient's mouth is sucked out in time, avoiding the discomfort caused by saliva accumulation or even outflow during the mouth opening training process, effectively preventing the risk of saliva being accidentally aspirated or flowing into the airway, ensuring the safety of the training process, and timely removing saliva also helps to keep the oral cavity clean and reduce bacterial infection; the saliva sucked out of the suction component 2 is collected and flows into the liquid storage component 3, and the saliva is absorbed and stored by the liquid storage component 3, which greatly reduces the reflux of saliva into the oral cavity, so that the saliva can be effectively collected, which is convenient for cleaning. At the same time, the liquid storage component 3 effectively reduces the reflux of airflow into the oral cavity, further improving the patient's training comfort.

[0023] Further as Figure 1 , Figure 3 , Figure 4 and Figure 7 As shown, it is worth specifically explaining that the opening assembly 1 includes a triangular block 108 that reciprocates inside the shell 4, and the second connecting rods 106 are slidably matched on the inclined surfaces on both sides of the triangular block 108. The second connecting rod 106 slides through the side wall of the shell 4 and a connecting plate 105 is fixed to the end of the connecting plate 105 that is located outside the shell 4. The first connecting rod 104 that slides through the side wall of the shell 4 is fixed to the end of the connecting plate 105 away from the second connecting rod 106. A joint plate 103 is fixed to the end of the first connecting rod 104 that is located inside the shell 4. The joint plate 103 extends from the open end of the shell 4 and an arc plate 101 is fixed to the end of the joint plate 103 away from the first connecting rod 104. The two arc plates 101 are respectively connected to the upper The lower teeth are in conflict with each other and the two arc plates 101 are arranged parallel to each other. An eccentric wheel 113 is fixed on the output end of the micro self-locking motor 5. A slide rod 112 is slidably matched on the eccentric wheel 113. The slide rod 112 slides through the side wall of the shell 4 and one end of the slide rod 112 located inside the shell 4 is fixed to the triangular block 108. A limit plate 111 located on the side of the triangular block 108 away from the slide rod 112 is fixed on the inner wall of the shell 4. A spring 110 is arranged between the triangular block 108 and the limit plate 111. The two ends of the spring 110 are respectively fixed to the sides of the triangular block 108 and the limit plate 111 that are close to each other. The ends of the two second connecting rods 106 and the slide rod 112 are set to arc ends 107; The two pushers in the mouth opening assembly 1 are specifically two arc plates 101. Initially, the two arc plates 101 are fitted together. When in use, the two arc plates 101 are first inserted into the patient's mouth and placed between the patient's upper and lower teeth, and the fixing belt 6 is pulled to fix the device on the patient's head. The eccentric wheel 113 is driven to rotate by the micro self-locking motor 5, so that the triangular block 108 is reciprocated by the cooperation of the eccentric wheel 113, the slide bar 112 and the spring 110. In the process of the triangular block 108 moving toward the opening end of the shell 4, the triangular block The inclined surfaces on both sides of 108 push the two second connecting rods 106 to move upward synchronously, and the second connecting rods 106 drive the two arc plates 101 to move in opposite directions through the connecting plate 105, the first connecting rod 104 and the joint plate 103, so that the patient is pushed to open his mouth by the two arc plates 101. When the triangular block 108 moves away from the opening end of the shell 4, the pushing of the second connecting rod 106 is removed, and the two arc plates 101 are pressed to move closer to each other by the bite force of the patient's mouth, so that the arc plates 101 are reset, so that the two arc plates 101 are reset through the above structure. The arc plate 101 forms a relatively reverse reciprocating motion, thereby driving the patient's mouth to open repeatedly, thereby helping the patient to perform mouth opening training, which can better simulate the natural mouth opening action, is more conducive to the exercise and recovery of muscles and joints, and effectively improves the patient's mouth opening training effect. The training method is simple to operate, and the strength and frequency of the ejector can be adjusted according to the actual situation of the patient, so as to achieve a personalized training effect, effectively avoiding the problem that the patient's mouth cannot perform normal opening and closing movements after the traditional method of inserting a support member such as a wooden plug into the patient's mouth, causing the patient to feel sore and uncomfortable oral muscles, effectively reducing the patient's discomfort during training, and at the same time locking the deflection angle of the eccentric wheel 113 through the output end of the micro self-locking motor 5, so that the eccentric wheel 113, the slide rod 112 and the spring 110 cooperate to lock the position of the triangular block 108, and then the position of the two arc plates 101 is locked, so that the patient can perform quantitative mouth opening training, which can ensure that the patient maintains a specific mouth opening size during the training process, meet the needs of different patients, thereby providing patients with a variety of training options, and effectively improving the overall scope of application and practicality.

[0024] Further as Figure 3 and Figure 4As shown, it is worth explaining in detail that a plurality of POM sleeves 109 are fixed in the side wall of the outer shell 4, the second connecting rod 106 and the first connecting rod 104 pass through the POM sleeve 109, and the side surfaces of the second connecting rod 106 and the first connecting rod 104 are slidably fitted with the inner wall of the POM sleeve 109, and rubber pads 102 are fitted and fixed on the sides of the two arc plates 101 that are away from each other; during specific operation, the friction resistance of the second connecting rod 106 and the first connecting rod 104 when sliding is effectively reduced by the arranged POM sleeve 109, and the smoothness of movement of the two arc plates 101 is effectively improved, and the contact friction force when the teeth collide with the arc plate 101 is increased by the arranged rubber pad 102, and at the same time, the teeth are protected to avoid wear of the teeth.

[0025] Further as Figure 1 , Figure 4 , Figure 6 and Figure 8As shown, it is worth specifically explaining that the liquid suction component 2 includes a third connecting rod 207 fixed to the bottom of the triangular block 108 and arranged in parallel with the sliding rod 112, a cylindrical shell 204 coaxially arranged with the third connecting rod 207 is arranged inside the housing 4, the end of the third connecting rod 207 away from the triangular block 108 is inserted into the cylindrical shell 204, and the end of the third connecting rod 207 located inside the cylindrical shell 204 is fixed with a piston plate 206 tightly matched with the inner side wall of the cylindrical shell 204, and a liquid passage cavity 202 is opened inside the arc plate 101 in contact with the lower teeth, and a side of the arc plate 101 away from the joint plate 103 is opened with a piston plate 206 that is closely matched with the inner side wall of the cylindrical shell 204. The inlet 208 is connected, and the infusion hose 203 is connected between the inside of the shell 204 and the liquid cavity 202. A discharge pipe 205 connected to the inside of the shell 204 is fixed at the bottom of the shell 204. The discharge pipe 205 is arranged in the middle of the shell 204. The end of the discharge pipe 205 away from the shell 204 passes through the bottom side wall of the shell 4 and is fixed to the bottom side wall of the shell 4. During the mouth opening training, multiple soft arc tubes 201 are extended into the oral cavity along with the arc plate 101, and at the same time, the port of the soft arc tube 201 is extended to the bottom of the mouth under the tongue. When the triangular block 108 moves to the limit position close to the opening end of the shell 4 When the piston plate 206 is positioned over the discharge tube 205 and located at one end of the cylinder shell 204 close to the opening end of the shell 4, when the triangular block 108 is reset and moved in a direction away from the opening end of the shell 4, the triangular block 108 drives the third connecting rod 207 to move synchronously, and the third connecting rod 207 drives the piston plate 206 to move in the cylinder shell 204 in a direction close to the eccentric wheel 113, so that a certain negative pressure suction force is formed inside the cylinder shell 204, the infusion hose 203, the liquid passage cavity 202 and the soft arc tube 201, thereby sucking the saliva in the patient's mouth through the soft arc tube 201, and then passing through the soft arc tube 201 in sequence. 1. The liquid passage cavity 202 and the infusion hose 203 draw saliva into the cylinder shell 204. When the piston plate 206 passes over the discharge tube 205, the outside air can enter the cylinder shell 204 through the discharge tube 205, thereby relieving the negative pressure in the cylinder shell 204. The saliva in the cylinder shell 204 can flow into the discharge tube 205 and be discharged through the discharge tube 205, thereby avoiding the discomfort caused by saliva accumulation or even outflow during mouth opening training, effectively preventing the risk of saliva aspiration or flowing into the airway, ensuring the safety of the training process, and timely removal of saliva also helps to keep the oral cavity clean and reduce bacterial infection.

[0026] Further as Figure 6 , Figure 7 and Figure 8As shown, it is worth explaining in detail that a plurality of liquid inlets 208 are provided and the plurality of liquid inlets 208 are equidistantly distributed, and a soft arc tube 201 connected to the liquid cavity 202 is fixed in each of the plurality of liquid inlets 208; during specific operation, saliva is mainly concentrated in the oral space under the tongue, and the end of the soft arc tube 201 extends into the bottom of the mouth under the tongue, so that the saliva can be fully sucked out through the soft arc tube 201.

[0027] Further as Figure 3 , Figure 4 , Figure 5 and Fig. 9 As shown, it is worth specifically explaining that the liquid storage component 3 includes a liquid storage box 301 fixed on the outer side wall of the bottom end of the shell 4, the interior of the liquid storage box 301 is connected to the drainage pipe 205, a sponge block 302 is arranged in the liquid storage box 301, and a through hole 304 is opened on the side surface of one end of the liquid storage box 301; during specific operation, saliva is collected and flows into the liquid storage box 301 through the drainage pipe 205, and the saliva is absorbed and stored by the sponge block 302, which greatly reduces the reflux of saliva into the oral cavity, so that the saliva can be effectively collected and convenient for cleaning.

[0028] This solution has the following working process: initially, the two arc plates 101 are fitted together. When in use, the two arc plates 101 are first inserted into the patient's mouth and placed between the patient's upper and lower teeth, the fixing belt 6 is pulled to fix the device on the patient's head, and the micro self-locking motor 5 is started to work. The eccentric wheel 113 is driven to rotate by the micro self-locking motor 5, so that the triangular block 108 moves back and forth through the cooperation of the eccentric wheel 113, the sliding rod 112 and the spring 110. In the process of the triangular block 108 moving toward the open end of the shell 4, the inclined surfaces on both sides of the triangular block 108 push the two second connecting rods 106 to move upward synchronously, and the second connecting rod 106 drives the two arc plates 101 to move in opposite directions through the connecting plate 105, the first connecting rod 104 and the joint plate 103, thereby pushing the patient through the two arc plates 101 To open the mouth, when the triangular block 108 moves away from the open end of the housing 4, the push on the second connecting rod 106 is removed, and the two arc plates 101 are pressed towards each other by the bite force of the patient's mouth, so that the arc plates 101 are reset. Through the above structure, the two arc plates 101 form a relative reverse reciprocating motion, thereby driving the patient's mouth to open repeatedly, thereby helping the patient to perform mouth opening training; at the same time, the deflection angle of the eccentric wheel 113 is locked by the output end of the micro self-locking motor 5, so that the position of the triangular block 108 is locked through the cooperation of the eccentric wheel 113, the sliding rod 112 and the spring 110, and then the position of the two arc plates 101 is locked, so that the patient can perform quantitative mouth opening training, which can ensure that the patient maintains a specific mouth opening size during the training process and meet the training needs of different patients; During the mouth opening training, a plurality of soft arc tubes 201 are extended into the oral cavity along with the arc plate 101, and at the same time, the port of the soft arc tube 201 is extended into the bottom of the mouth under the tongue. When the triangular block 108 moves to the extreme position close to the opening end of the shell 4, the piston plate 206 passes over the discharge tube 205 and is located at one end of the cylinder shell 204 close to the opening end of the shell 4. When the triangular block 108 is reset and moves in the direction away from the opening end of the shell 4, the triangular block 108 drives the third connecting rod 207 to move synchronously, and the third connecting rod 207 drives the piston plate 206 to move in the cylinder shell 204 in the direction close to the eccentric wheel 113, thereby forming a certain negative pressure suction force inside the cylinder shell 204, the infusion hose 203, the liquid passage cavity 202 and the soft arc tube 201, and the soft arc tube 201 is used to suck the liquid. The tube 201 sucks the saliva in the patient's mouth, and then the saliva is sucked into the cylinder shell 204 through the soft arc tube 201, the liquid cavity 202 and the infusion hose 203 in sequence. When the piston plate 206 continues to move in the cylinder shell 204 and passes over the discharge tube 205, the outside air can enter the cylinder shell 204 through the opening 304, the second gap 303 and the discharge tube 205 in sequence, thereby relieving the negative pressure in the cylinder shell 204. The saliva in the cylinder shell 204 can be collected and flowed into the discharge tube 205, and discharged through the discharge tube 205. The saliva is collected and flowed into the liquid storage box 301 through the discharge tube 205, and the saliva is absorbed and stored by the sponge block 302, which greatly reduces the saliva from flowing back into the oral cavity, so that the saliva can be effectively collected.

[0029] Further as Figure 5 and Fig. 9 As shown, it is worth specifically explaining that a first gap is provided between the top surface of the sponge block 302 and the outer side wall of the bottom end of the shell 4, and a second gap 303 is provided between one end of the sponge block 302 close to the through-port 304 and the inner side wall of the liquid storage box 301; when the piston plate 206 compresses the gas in the cylinder shell 204, part of the gas in the cylinder shell 204 can be discharged through the drainage pipe 205, the second gap 303 and the through-port 304 in sequence, effectively reducing the reflux of airflow into the oral cavity, further improving the patient's training comfort; when the piston plate 206 sucks saliva, the outside air can enter the cylinder shell 204 through the through-port 304, the second gap 303 and the drainage pipe 205 in sequence, relieving the negative pressure in the cylinder shell 204, so that the saliva in the cylinder shell 204 can better flow into the liquid storage box 301 through the drainage pipe 205 for absorption.

[0030] Further as Fig. 9As shown, it is worth explaining in detail that a slot 305 is provided on the side of the liquid storage box 301, a cover plate 306 is hinged in the slot 305, and a lifting boss 307 is fixed on the outer wall of the cover plate 306; during specific operation, the cover plate 306 is driven by pulling the lifting boss 307, so that the sponge block 302 after collecting saliva can be easily taken out of the liquid storage box 301 for processing, so that a new sponge block 302 can be replaced for the next use.

[0031] Further as Figure 3 As shown, it is worth specifically explaining that a screw hole 7 is opened on the side of the eccentric wheel 113, and a screw for fixing the eccentric wheel 113 to the micro self-locking motor 5 is installed in the screw hole 7; when it is used for patients with different severity, the screw can be removed to replace the eccentric wheel 113 of different sizes and install it on the output end of the micro self-locking motor 5, and the displacement distance of the triangular block 108 is adjusted, that is, the maximum relative distance between the two arc plates 101 is adjusted, so as to adjust the maximum mouth opening size according to the patients with different severity.

[0032] In summary: the two pushers in the mouth opening component 1 are synchronously reciprocated in opposite directions, thereby driving the patient's mouth to open repeatedly, thereby helping the patient to perform mouth opening training, which can better simulate the natural mouth opening movement, is more conducive to the exercise and recovery of muscles and joints, and effectively improves the patient's mouth opening training effect. The training method is simple to operate, and the strength and frequency of the pushers can be adjusted according to the actual situation of the patient, so as to achieve personalized training effects, and effectively avoid the problem that the patient's mouth cannot perform normal opening and closing movements after the traditional method of inserting supporting parts such as wooden corks into the patient's mouth, causing the patient to feel sore and uncomfortable oral muscles, effectively reducing the patient's discomfort during training, and at the same time, the micro self-locking motor 5 can also be used to drive the two pushers in the mouth opening component 1 to lock their positions, so that the patient can perform quantitative mouth opening training, which can ensure that the patient maintains a specific mouth opening size during the training process, meet the needs of different patients, and thus provide patients with a better experience. It provides a variety of training options, effectively improving the overall scope of application and practicality; during the mouth opening training process, the suction end of the suction component 2 is extended into the patient's oral cavity, and the mouth opening component 1 drives the suction component 2 to work, and a certain negative pressure suction force is generated by the suction component 2, so that the saliva in the patient's mouth is sucked out in time, avoiding the discomfort caused by saliva accumulation or even outflow during the mouth opening training process, effectively preventing the risk of saliva being accidentally aspirated or flowing into the airway, ensuring the safety of the training process, and timely removing saliva also helps to keep the oral cavity clean and reduce bacterial infection; the saliva sucked out of the suction component 2 is collected and flows into the liquid storage component 3, and the saliva is absorbed and stored by the liquid storage component 3, which greatly reduces the reflux of saliva into the oral cavity, so that the saliva can be effectively collected, which is convenient for cleaning. At the same time, the liquid storage component 3 effectively reduces the reflux of airflow into the oral cavity, further improving the patient's training comfort.

[0033] The micro self-locking motor 5 can be purchased on the market. The micro self-locking motor 5 is equipped with a power supply, which is a mature technology in this field and has been fully disclosed, so it will not be repeated in the specification.

Claims

1. An adjustable nasopharyngeal carcinoma mouth opening training device, comprising a housing, characterized in that: The shell is open at one end, and a micro self-locking motor is fixed on the outer wall of the closed end of the shell opposite to the open end. A mouth opening component is arranged in the shell, which is transmission-connected to the micro self-locking motor and assists the patient in automatic and repeated mouth opening training. A liquid suction component is arranged at the end of the mouth opening component, which cooperates with the mouth opening component to automatically suck and discharge saliva in the patient's mouth.

2. The adjustable nasopharyngeal carcinoma mouth opening training device according to claim 1, characterized in that: The opening assembly includes a triangular block located inside the shell and reciprocating, and second connecting rods are slidably fitted on the inclined surfaces on both sides of the triangular block. The second connecting rod slides through the side wall of the shell and a connecting plate is fixed to the end located outside the shell, and a first connecting rod that slides through the side wall of the shell is fixed to the end of the connecting plate away from the second connecting rod, and a joint plate is fixed to the end of the first connecting rod located inside the shell, the joint plate extends from the open end of the shell and an arc plate is fixed to the end of the joint plate away from the first connecting rod, and the two arc plates are respectively in contact with the upper and lower teeth and are arranged parallel to each other.

3. The adjustable nasopharyngeal carcinoma mouth opening training device according to claim 2, characterized in that: An eccentric wheel is fixed on the output end of the micro self-locking motor, and a sliding rod is slidably matched on the eccentric wheel. The sliding rod slides through the side wall of the shell and one end of the sliding rod located inside the shell is fixed to the triangular block. A limiting plate located on the side of the triangular block away from the sliding rod is fixed on the inner wall of the shell. A spring is arranged between the triangular block and the limiting plate, and both ends of the spring are respectively fixed to the sides of the triangular block and the limiting plate close to each other, and the ends of the two second connecting rods and the sliding rod are arranged as arc ends.

4. The adjustable nasopharyngeal carcinoma mouth opening training device according to claim 2, characterized in that: A plurality of POM sleeves are fixed in the side wall of the shell, the second connecting rod and the first connecting rod pass through the POM sleeves, and the sides of the second connecting rod and the first connecting rod are slidably fitted with the inner side wall of the POM sleeve, and rubber pads are fitted and fixed on the sides of the two arc plates away from each other.

5. The adjustable nasopharyngeal carcinoma mouth opening training device according to claim 4, characterized in that: The liquid suction component includes a third connecting rod fixed at the bottom of the triangular block and arranged parallel to the sliding rod, a cylindrical shell coaxially arranged with the third connecting rod is provided inside the outer shell, the end of the third connecting rod away from the triangular block is inserted into the cylindrical shell, and the end of the third connecting rod located inside the cylindrical shell is fixed with a piston plate tightly matched with the inner wall of the cylindrical shell, a liquid passage cavity is provided inside the arc plate in contact with the lower tooth, and a liquid inlet connected to the liquid passage cavity is provided on the side of the arc plate away from the joint plate, and an infusion hose is connected between the inside of the cylindrical shell and the liquid passage cavity.

6. The adjustable nasopharyngeal carcinoma mouth opening training device according to claim 5, characterized in that: The liquid inlets are provided in a plurality and are distributed at equal intervals, and a soft arc-shaped tube communicating with the liquid passage cavity is fixed in each of the liquid inlets.

7. The adjustable nasopharyngeal carcinoma mouth opening training device according to claim 5, characterized in that: A drainage pipe communicating with the inside of the shell is fixed at the bottom of the shell. The drainage pipe is arranged in the middle of the shell. One end of the drainage pipe away from the shell passes through the bottom side wall of the shell and is fixed to the bottom side wall of the shell.

8. The adjustable nasopharyngeal carcinoma mouth opening training device according to claim 1, characterized in that: A liquid storage component for absorbing and storing saliva discharged from the liquid absorption component is arranged at the bottom of the shell. The liquid storage component includes a liquid storage box fixed on the outer side wall of the bottom end of the shell. The interior of the liquid storage box is connected with the liquid discharge pipe. A sponge block is arranged in the liquid storage box. A through opening is opened on the side surface of one end of the liquid storage box.

9. The adjustable nasopharyngeal carcinoma mouth opening training device according to claim 8, characterized in that: A first gap is arranged between the top surface of the sponge block and the outer side wall of the bottom end of the shell, and a second gap is arranged between one end of the sponge block close to the through opening and the inner side wall of the liquid storage box.

10. The adjustable nasopharyngeal carcinoma mouth opening training device according to claim 9, characterized in that: A notch is provided on the side of the liquid storage box, a cover plate is hinged in the notch, and a lifting convex column is fixed on the outer side wall of the cover plate.

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