A special mounting fixture for an tympanic membrane-stimulating artificial middle ear actuator

Abstract

The present invention discloses a special installation fixture for an eardrum-stimulating artificial middle ear actuator, comprising a shell, a tube body fixed to the shell, and a displacement limiting frame connected to the tube body; two congruent long holes are formed on the outer surface of the displacement limiting frame, and a limit pin is inserted into the two long holes for sliding engagement, and a section of the limit pin between the two long holes is set as a hinge section, and the hinge section is connected with a connecting block and two matching clips, and the rear part of the clip is connected to the connecting block through a hydraulic piston cylinder, and the hydraulic piston cylinder is equipped with a control device; one end of the limit pin is connected to a push rod, and the outer surface of the displacement limiting frame is connected to a support, and a limiting through hole is provided on the support, and the push rod is slidably engaged with the limiting through hole, and a support spring is provided between the limit pin and the support, and a scale line is provided for the moving stroke of the push rod. Through the arrangement of the displacement limiting frame and the support spring, the installer can control the relative contact force between the actuator and the eardrum when installing, so that the actuator can be installed anytime and anywhere.

Description

Technical Field

[0001] The present invention belongs to the technical field of hearing aid matching devices, and in particular relates to a special mounting fixture for an eardrum-excitation artificial middle ear actuator. Background Art

[0002] Hearing loss, also known as deafness, is the most common sensory organ disability in society. With 27.8 million patients in my country, it ranks first among all types of disabilities. Globally, the number of patients reaches 430 million, and the number of patients is increasing annually with the aging population. Developing hearing aids to treat hearing loss is a pressing need. Hearing loss can be categorized as sensorineural or conductive, depending on the location of the damage within the ear. Conductive hearing loss is primarily caused by pathological changes in the outer and middle ear tissues, preventing sound from effectively transmitting through the eardrum and leading to decreased sound perception. Sensorineural hearing loss, on the other hand, is primarily caused by damage to the hair cells and auditory nerve within the cochlea, preventing the ear from effectively amplifying and transmitting sound signals to the brain. With the continuous advancement of ear microsurgery, most patients with conductive hearing loss can undergo surgery to improve their hearing. However, there is currently no effective surgical or medical treatment for sensorineural hearing loss, leaving patients with hearing loss to rely on hearing aids. However, traditional hearing aids suffer from issues such as insufficient high-frequency gain, acoustic feedback, an occlusion effect, and low clarity. These deficiencies result in suboptimal hearing outcomes for patients. Patients with severe hearing loss may also experience "hearing without clarity"—they can hear the sound amplified by the hearing aid but cannot understand its meaning, resulting in low intelligibility. Due to these shortcomings, many patients who have already purchased hearing aids are reluctant to wear them. Consequently, research is underway both domestically and internationally on new hearing aid devices—artificial middle ear devices—that compensate for hearing loss by mechanically stimulating the tissue inside the ear through an actuator.

[0003] An artificial middle ear is a device that uses the output end of its actuator to act on the eardrum, auditory ossicles, or round window of the cochlea. It converts external sound signals sensed outside the body into mechanical vibrations of the actuator to drive the movement of ear tissue, transmit amplified nerve impulses to the brain, and assist in auditory perception. Depending on the location of the tissue inside the ear where the actuator acts, artificial middle ears can be divided into incus body excitation type, round window excitation type, tympanum excitation type, etc. Among them, the tympanum excitation type artificial middle ear has the advantages of no surgical trauma and low cost because its actuator is directly attached to the eardrum with adhesive, does not require implantation surgery, has the advantages of no surgical trauma, and has become a research hotspot internationally in recent years.

[0004] The main components of the eardrum-stimulating artificial middle ear are usually as follows: Figure 1As shown, it primarily consists of five components: a microphone 81, a signal transmitter 82, an actuator 83, a signal processing module, and a power supply (located behind the auricle). The power supply provides energy for the other components, ensuring their normal operation. Microphone 81 is responsible for receiving external sound signals, converting the sound vibration signals into electrical signals, and transmitting these signals to the signal processing module. The signal processing module is responsible for performing noise reduction, amplification, filtering, and other processing on the signals transmitted by microphone 81 based on the patient's hearing loss, and then transmitting the processed signals to signal transmitter 82 at the ear canal opening. Signal transmitter 82 sends a driving signal to actuator 83 attached to the eardrum 92. After receiving the signal from signal transmitter 82 through its signal receiving module, actuator 83 mechanically vibrates, driving the eardrum 92. This causes the auditory ossicles (malleus 93, incus 94, and stapes 95) behind the eardrum 92 to vibrate. The vibrations are then transmitted through the stapes 95 to the cochlea 96, which is responsible for sound perception, thereby compensating for hearing loss.

[0005] The key point of wearing the eardrum-stimulating artificial middle ear is the installation of its actuator, that is, how to effectively fit the actuator 83 on the eardrum 92 located deep in the external auditory canal 91. Figure 2As shown. Since the space of the external auditory canal 91 is extremely narrow and elongated, it is impossible to directly operate the hands to achieve effective fitting between the actuator 83 and the eardrum 92 during the wearing process of the actuator. Firstly, because the structure of the external auditory canal 91 is narrow and the diameter is generally 7 mm, it is difficult to control the contact force between the actuator 83 and the eardrum 92 during the wearing process by hand. The eardrum 92 is a particularly fragile tissue of the human body. If a little force is applied during wearing, it will cause pain to the patient, and in severe cases, it may even cause perforation of the patient's eardrum 92, resulting in further conductive hearing damage; if too little force is applied, the actuator 83 will not fit firmly with the eardrum 92, and it will easily fall off after wearing. Secondly, it is difficult to judge the position of the actuator 83 in the external auditory canal 91. This is primarily due to the small and curved diameter of the external auditory canal 91. When manually inserting the device, the wearer's field of vision is easily obstructed by the hand or the structure of the external auditory canal 91 itself. Furthermore, during installation, the actuator 83 itself, inserted into the ear canal, obstructs the wearer's field of vision, making it impossible to determine the distance between its rear end and the eardrum 92. In summary, the inability to effectively manually install an actuator for an eardrum-stimulating artificial middle ear is primarily due to the inability to control the contact force between the actuator and the eardrum, and the obstructed field of view during installation. Currently, artificial middle ear actuators on the market are mainly installed by professionally trained doctors using special otolaryngology auxiliary equipment. Patients need to go to the hospital designated by the company to solve the problem. Because this type of otolaryngology auxiliary equipment serves various otolaryngology diseases, it is often comprehensive in function, large in size and expensive. However, there is no portable, autonomous auxiliary installation device for tympanic membrane-stimulating artificial middle ear actuators on the market. The inventor believes that going to a specific hospital to find a professional doctor to install the tympanic membrane-stimulating artificial middle ear actuator will obviously increase the time cost of the actuator 83, the labor cost of installation, and the hidden service cost purchased by the patient. Moreover, if the actuator 83 falls off during use, the patient needs to go to the above-mentioned designated hospital to reinstall it, which greatly affects the patient's normal use experience and brings additional trouble. For this reason, it is necessary to design a special installation fixture for tympanic membrane-stimulating artificial middle ear actuators.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance understanding of the background of the present disclosure and therefore may contain information that does not constitute prior art. Summary of the Invention

[0007] Through research, the inventors found that due to the influence of the connection method between the actuator and the eardrum during installation, because the user himself cannot control the relative contact force between the actuator and the eardrum during installation, he often needs to go to the hospital with the help of medical staff to use relevant medical equipment to install the actuator, which requires relevant time costs, labor costs and additional service fees, bringing inconvenience to the user and affecting the user experience.

[0008] In view of at least one of the above technical problems, the present disclosure provides a special mounting fixture for an tympanic membrane-stimulating artificial middle ear actuator, and the specific technical solution is as follows:

[0009] A special mounting fixture for an eardrum-stimulating artificial middle ear actuator comprises a shell, the shell is fixed with a tube body, the inner cavities of the shell and the tube body are connected to each other to form a tube passage, the distal end of the tube body is butted with a displacement limiting frame; the distal end of the displacement limiting frame passes through the outer surface to form two congruent long holes, the long axis of the long holes is parallel to the axis of the tube body, a limit pin is inserted into the two long holes and slidably fits, the limit pin and the two long holes are connected in a groove pin pair, a section of the limit pin between the two long holes is set as a hinge section, the hinge section is connected with a connecting block facing the tube body, the hinge section is further hinged with two paired clips, the clips are in an outwardly flared curved structure, the rear part of each clip is connected to the connecting block by a hydraulic piston cylinder, the hydraulic piston cylinder is equipped with a control device, and the control device is fixed to the shell; one end of the limit pin A push rod is vertically connected, and the outer surface of the displacement limiting frame is connected to a support. The support is provided with a limiting through hole, the axis of the limiting through hole is parallel to the axis of the tube body, the push rod and the limiting through hole are slidably matched, and a support spring is provided between the limiting pin and the support. The moving stroke of the push rod is equipped with a scale line. Through the setting of the displacement limiting frame and the support spring, an effective buffer can be formed when the two clips clamp the actuator and install it on the eardrum in the ear canal to avoid excessive contact force between the actuator and the eardrum. The setting of the scale line can be used as a reference for the contact strength between the actuator and the eardrum, so that the installer can control the relative contact force between the actuator and the eardrum during installation. No professional ear medical knowledge is required, and the actuator can be installed anytime and anywhere, which optimizes the user experience of the actuator.

[0010] In some embodiments of the present disclosure, the control device includes a hydraulic controller, which is fixed inside the shell. The hydraulic controller includes a cylinder body, the front end of the cylinder body is connected to a hose, and the other end of the hose is connected to the hydraulic piston cylinder. A plunger rod is provided in the cylinder body, and the rear end of the plunger rod is connected to a push plate, and the push plate is connected to a control button. The pressing part of the control button is provided on the outer surface of the shell. By pressing the control button, the plunger rod of the hydraulic controller can be displaced, and the hydraulic oil in the hydraulic controller can be injected into the hydraulic piston cylinder through the hose. The hydraulic piston cylinder then drives the clamp to realize the clamping function of the present disclosure.

[0011] In some embodiments of the present disclosure, the outer shell is shaped like a gun handle, the tube body is placed on one side of the upper part of the outer shell, and a guide structure acting on the hose is provided in the tube passage. The gun handle-shaped outer shell is convenient for grasping during operation, and the guide structure can organize the hose pipeline, so that the hose is not prone to bending and twisting, which facilitates the movement and conduction of the hydraulic oil.

[0012] In some embodiments of the present disclosure, the distal end of the tube body is connected to the displacement limiting frame in a movable pair, so that a buffer space is formed between the tube body and the displacement limiting frame. When the clip-clamping actuator is extended into the external auditory canal, when the front end contacts the inner wall of the external auditory canal or the eardrum, a tactile buffer space can be provided, so that the installer can gradually slow down the operating force and the speed of penetration to avoid hitting the eardrum.

[0013] In some embodiments of the present disclosure, the two long holes are respectively arranged on the upper and lower bottom surfaces of the displacement limiting frame, and the two sides of the displacement limiting frame are open structures, which facilitates the movement of the clip and the limit pin in the displacement limiting frame, further reducing possible interference between the structures.

[0014] In some embodiments of the present disclosure, a through hole for disposing a push rod is provided on the upper portion of the limit pin, a support is provided on the upper surface of the displacement limiting frame, and the displacement limiting frame is provided with a avoidance groove in the projection area of the push rod. The push rod is placed on the upper portion to facilitate observation by the installer during installation. The design of the avoidance groove further optimizes the overall structure, increases the integrity of the structure, and reduces the overall outer contour height of the entire displacement limiting frame and its surrounding connecting parts, making it easier to move in the external auditory canal.

[0015] In some embodiments of the present disclosure, a rectangular hole is provided at the rear of the clip, and tracks are provided on the upper and lower frames of the rectangular hole. A guide rod is provided in the track, and the guide rod is connected to the track in a groove pin pair. A connecting rod is vertically provided on the connecting block, and the guide rod and the connecting rod are respectively hinged to the cylinder barrel and the piston rod of the hydraulic piston cylinder, so that the hydraulic piston cylinder can perform piston movement more smoothly, and the opening and closing of the two clips can be smoother.

[0016] In some embodiments of the present disclosure, the track is a linear groove track and / or a waist-shaped hole.

[0017] In some embodiments of the present disclosure, the scale lines are provided on the outer surface of the tube body to facilitate observation by the installer.

[0018] In some embodiments of the present disclosure, a clamping adaptation curved surface is provided on the inner side of the front end of the clip, and the outer width of the maximum opening of the two clips does not exceed 4.5 mm, which is convenient for clamping the actuator while allowing it to open and close freely in the external auditory canal.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The displacement limiting frame and support spring prevent excessive contact force between the actuator and the eardrum when the two clips are clamped and installed on the eardrum in the ear canal, forming an effective buffer. The scale lines serve as a reference for the contact strength between the actuator and the eardrum, allowing the installer to control the relative contact force between the actuator and the eardrum during installation. Professional ear medical knowledge is not required for the installer, and the actuator can be installed anytime and anywhere, optimizing the user experience and saving costs.

[0021] 2. The present invention does not require electrical support and is driven by a simple hydraulic system. It has a stable structure, is noiseless when in use, and is safe, reliable, energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the tympanic membrane-stimulating artificial middle ear when worn;

[0023] Figure 2 Schematic diagram of the structure where the actuator is mounted on the eardrum;

[0024] Figure 3 This is a three-dimensional schematic diagram of Example 1 of the structure of the present invention;

[0025] Figure 4 for Figure 3 A partial enlarged schematic diagram of the middle displacement limiting frame;

[0026] Figure 5 A schematic diagram of the wiring layout of the hose in the structure of the present invention;

[0027] Figure 6 Schematic diagram of the connection relationship between the operating device and the hydraulic piston cylinder in the structure of the present invention;

[0028] Figure 7 for Figure 5 A partial enlarged schematic diagram of part A;

[0029] Figure 8 Schematic diagram of the connection relationship between the clip, the limit pin and the displacement limiting frame in Example 1 of the structure of the present invention;

[0030] Figure 9 Schematic diagram of the connection between the limit pin, the displacement limiting frame and the support in Example 1 of the structure of the present invention;

[0031] Figure 10 This is a diagram showing the connection relationship between the housing and the control device of Example 1 of the structure of the present invention;

[0032] Figure 11 for Figure 10 A partial enlarged schematic diagram of part B;

[0033] Figure 12 for Figure 11 A partial enlarged schematic diagram of part C in the middle;

[0034] Figure 13 This is a schematic structural diagram of the tube body of Example 1 of the present invention;

[0035] Figure 14 Schematic diagram of the structure of the tape measure.

[0036] Explanation of the numbers in the figure: 1. Shell; 11. Guide structure; 2. Tube body; 21. Scale line; 3. Displacement limiting frame; 31. Long hole; 32. Support; 321. Limiting through hole; 33. Avoidance groove; 34. Support spring; 4. Limiting pin; 41. Articulated section; 42. Connecting block; 421. Connecting rod; 43. Push rod; 5. Clip; 51. Rectangular hole; 511. Guide rod; 52. Clamping adaptation surface; 6. Hydraulic piston cylinder; 7. Control device; 71. Hydraulic controller; 711. Cylinder body; 712. Plunger rod; 72. Hose; 73. Push plate; 74. Control button; 75. Return spring; 81. Microphone; 82. Signal transmitting device; 83. Actuator; 91. External auditory canal; 92. Eardrum; 93. Malleus; 94. Incus; 95. Stapes; 96. Cochlea. DETAILED DESCRIPTION

[0037] In order to better understand the purpose, structure and function of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0038] The serial numbers assigned to the components herein are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" mentioned in this disclosure includes direct and indirect "connections" unless otherwise specified. In the description of this application, it should be understood that the orientation or positional relationship indicated by the directional terms "upper", "lower", "front", "back", "far end", "proximal end", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and brief description, and does not indicate or imply that the device or unit referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation to this application.

[0039] like Figures 3 to 13As shown, a special mounting fixture for an eardrum-stimulating artificial middle ear actuator is designed, comprising a shell 1, the shell 1 being fixed with a tube body 2, the internal cavities of the shell 1 and the tube body 2 being connected to each other to form a tube-through channel, and a displacement limiting frame 3 being docked at the distal end of the tube body 2; two congruent long holes 31 are formed through the outer surface of the distal end of the displacement limiting frame 3, the long axis of the long hole 31 is parallel to the axis of the tube body 2, and a limiting pin 4 is inserted into the two long holes 31 and slidably fitted therein, the limiting pin 4 and the two long holes 31 are connected in a groove pin pair, and a section of the limiting pin 4 between the two long holes 31 is set as a hinge section 41, the hinge section 41 is connected with a connecting block 42 facing the tube body 2, and the hinge section 41 is also hinged with two paired clips 5, the clips 5 are in an outwardly expanded curved structure, and the rear part of each clip 5 is connected to the connecting block 42 by a hydraulic piston cylinder 6, and the hydraulic piston cylinder 6 is equipped with a control device 7, which is fixed to the shell 1; one end of the limiting pin 4 is vertically connected to The push rod 43 is connected, and the outer surface of the displacement limiting frame 3 is connected to the support 32. The support 32 is provided with a limiting through hole 321. The axis of the limiting through hole 321 is parallel to the axis of the tube body 2. The push rod 43 slides in cooperation with the limiting through hole 321. A supporting spring 34 is provided between the limiting pin 4 and the support 32. The moving stroke of the push rod 43 is provided with a scale line 21. Through the arrangement of the displacement limiting frame 3 and the supporting spring 34, the two clips 5 can form an effective buffer when clamping the actuator 83 and installing it on the tympanum 92 in the ear canal, thereby preventing the contact force between the actuator 83 and the tympanum 92 from being too strong. The arrangement of the scale line 21 can serve as a reference for the contact strength between the actuator 83 and the tympanum 92, thereby allowing the installer to control the relative contact force between the actuator 83 and the tympanum 92 during installation. No professional ear medical knowledge is required, and the actuator 83 can be installed anytime and anywhere, thereby optimizing the user experience of the actuator 83.

[0040] When using, the installer first uses a tape measure to measure the length of the external auditory canal 91 before installing the artificial middle ear actuator 83. The specific process is: hold the slender rubber tape measure with the handheld end. The tape measure has the following structure: Figure 14As shown, a tape measure is slowly inserted into the external auditory canal 91 of the user of actuator 83. When the user of actuator 83 feels the tape measure contact the eardrum 92, the tape measure is stopped. The size reading at the point on the tape measure scale corresponding to the external auditory canal opening is taken. This size value is the length of the external auditory canal 91 of the user of actuator 83. After the control device 7 is executed, the mechanical energy of the control device 7 is converted into liquid pressure energy and fed back to the hydraulic piston cylinder 6. The piston rod of the hydraulic piston cylinder contracts to open the two clamps 5. The actuator 83 is inserted, and the clamping position of the two clamps 5 is adjusted so that the clamping contact surface with the actuator 83 is not too large. The control device 7 is executed in the reverse direction to extend the hydraulic cylinder, and the actuator 83 is clamped by the two clamps 5. The positional relationship between the actuator 83, the tube body 2, and the displacement limiting frame 3 is adjusted. After the adjustment is completed, the adhesive is applied to the contact surface of the actuator 83 with the eardrum 92. In the present disclosure, bone glue can be preferably used. According to the above-mentioned measurement of the length of the user's external auditory canal 91 of the actuator 83, combined with the position of the actuator 83 and the push rod 43 at the corresponding scale line 21, when it is estimated that the actuator 83 is 3 to 5 mm away from the eardrum according to the scale line 21, the push rod 43 indicates the corresponding scale on the scale line 21, and this place is set as the warning position of the safe distance.

[0041] During the installation of the artificial middle ear actuator 83, the installer slowly inserts the artificial middle ear actuator 83 into the ear canal and monitors the distance of the actuator 83 in real time based on the tactile sensation and the indication of the push rod 43 on the scale line 21. When the safe distance warning position is reached, the speed and force of the actuator 83 are further reduced. When the resistance increases when the actuator 83 is in contact with the eardrum 92, the support spring 34 begins to provide a buffering force between the limit pin 4 and the support 32, protecting the eardrum 92 from damage. During the installation of the artificial middle ear actuator 83, if the clip 5 and the front end of the actuator 83 come into contact with the inner wall of the ear canal due to operational errors, feedback can also be obtained through the deformation of the support spring 34 and the displacement of the push rod 43 on the scale line 21. When the actuator 83 is fully in contact with the eardrum, the control device 7 is operated to open the two clips 5 and disengage them from the actuator 83. The two clips 5 are then moved back to the disengagement distance, and the installation fixture is withdrawn, completing the installation. Repeating the above steps can be performed multiple times. The present invention does not require electrical power and is driven by a simple hydraulic system. It has a stable structure, is silent during use, and is safe, reliable, energy-saving, and environmentally friendly.

[0042] In the above implementation, three embodiments are listed to implement the above technical solution:

[0043] Example 1

[0044] The present embodiment provides a special mounting fixture for an eardrum-stimulating artificial middle ear actuator, including a shell 1. The shell 1 in this embodiment is preferably made of plastic, is lightweight, and is easy to hold. A tube body 2 is fixed to the shell 1. The internal cavities of the shell 1 and the tube body 2 are connected to each other to form a tube passage. A displacement limiting frame 3 is connected to the distal end of the tube body 2. Two congruent long holes 31 are formed on the distal end of the displacement limiting frame 3 through the outer surface. The long axis of the long hole 31 is parallel to the axis of the tube body 2. A limit pin 4 is inserted into the two long holes 31 and slidably fits therein. The limit pin 4 is connected to the two long holes 31 in a slotted pin pair. The section of the limit pin 4 between the two long holes 31 is set as a hinged section 41, and the hinged section 41 is connected to a connecting block 42 facing the tube body 2. The hinged section 41 is also hinged with two paired clips 5, and the inner side of the front end of the clip 5 is provided with a clamping adaptation surface 52, and the clamping adaptation surface 52 is used to fit the outer contour of the actuator 83 to clamp the actuator 83. The outer width of the maximum opening of the two clips 5 does not exceed 4.5mm. The clip 5 has an outward-expanding curved surface structure. The rear part of each clip 5 is connected to the connecting block 42 through a hydraulic piston cylinder 6, and the hydraulic piston cylinder 6 is equipped with a control device 7. , the control device 7 is fixed to the housing 1; one end of the limit pin 4 is vertically connected to the push rod 43, the outer surface of the displacement limiting frame 3 is connected to the support 32, the support 32 is provided with a limit through hole 321, the axis of the limit through hole 321 is parallel to the axis of the tube body 2, the push rod 43 and the limit through hole 321 are slidably matched, a support spring 34 is provided between the limit pin 4 and the support 32, the optimal force of the support spring 34 when installed is 15-20mN, the moving stroke of the push rod 43 is equipped with a scale line 21, the scale line 21 is provided on the outer surface of the tube body 2, which is convenient for the installer to observe the contact force and contact distance, By setting the displacement limiting frame 3 and the supporting spring 34, an effective buffer can be formed when the two clips 5 clamp the actuator 83 and install it on the eardrum 92 in the ear canal, thereby preventing the contact force between the actuator 83 and the eardrum 92 from being too strong. The setting of the scale line 21 can be used as a reference for the contact strength between the actuator 83 and the eardrum 92, thereby allowing the installer to control the relative contact force between the actuator 83 and the eardrum 92 during installation. Without the need for professional ear medical knowledge, the actuator 83 can be installed anytime and anywhere, thereby optimizing the user experience of the actuator 83.

[0045] The control device 7 includes a hydraulic controller 71, which is fixed to the inside of the housing 1. The hydraulic controller 71 includes a cylinder 711. The front end of the cylinder 711 is connected to a hose 72. The other end of the hose 72 is connected to the hydraulic piston cylinder 6. A plunger rod 712 is provided in the cylinder 711. The rear end of the plunger rod 712 is connected to a push plate 73. The push plate 73 is connected to a manipulation button 74. A return spring 75 is provided between the push plate 73 and the manipulation button 74. The pressing part of the manipulation button 74 is provided on the outer surface of the housing 1. By pressing the manipulation button 74, the plunger rod 712 of the hydraulic controller 71 can be moved. Displacement occurs, and the hydraulic oil in the hydraulic controller 71 is injected into the hydraulic piston cylinder 6 through the hose 72. The hydraulic piston cylinder 6 pulls the rear end of the clamp 5 and the connecting block 42, and then drives the clamp 5, realizing the clamping function disclosed in the present invention, and tightening the actuator 83. The operating button 74 is released, and under the action of the return spring 75, the hydraulic oil in the hydraulic controller 71 is realized to flow back, and then the hydraulic oil in the hydraulic piston cylinder 6 is sucked out through the hose. The hydraulic piston cylinder 6 realizes the withdrawal of the rear end of the clamp 5 and the connecting block 42, realizing the release function disclosed in the present invention, and realizing the separation between the clamp 5 and the actuator 83. The shell 1 is shaped like a gun handle, and the tube body 2 is placed on one side of the upper part of the shell 1. A guide structure 11 acting on the hose 72 is provided in the tube passage. The gun handle-shaped shell is easy to grasp during operation. The guide structure 11 can organize the pipeline of the hose 72, and the hose 72 is not easy to bend or twist, which is convenient for the movement transmission of the hydraulic oil. In this embodiment, the guide structure 11 is a groove wheel, and the groove wheel is fixed to the inner end of the tube body 2. After the hose 72 extends from the shell 1, it bypasses the groove wheel and penetrates the tube body 2, so that the pipeline of the hose 72 is organized, and the hose 72 is not easy to bend or twist, which is convenient for the movement transmission of the hydraulic oil.The two long holes 31 are respectively provided on the upper and lower bottom surfaces of the displacement limiting frame 3. The two sides of the displacement limiting frame 3 are open structures, which are convenient for the movement of the clip 5 and the limit pin 4 in the displacement limiting frame 3, and further reduce the possible interference between the various structures; the upper part of the limit pin 4 is provided with a through hole for arranging the push rod 43, and the support 32 is provided on the upper surface of the displacement limiting frame 3. The displacement limiting frame 3 is provided with an avoidance groove 33 in the projection area of the push rod 43. The push rod 43 is placed on the upper part for the convenience of the installer to observe during installation. The design of the avoidance groove 33 further optimizes the overall structure, increases the integrity of the structure, and also reduces the overall displacement limiting frame 3. The overall outer contour height of the frame 3 and its surrounding connecting parts facilitates movement in the external auditory canal 91, reducing collision with the inner wall of the external auditory canal 91; the clip 5 is in a broken line shape, and a rectangular hole 51 is provided at the rear of the clip 5, and the upper and lower frames of the rectangular hole 51 are provided with tracks, and the tracks are waist-shaped holes, and a guide rod 511 is provided in the track, and the guide rod 511 is connected to the track in a groove pin pair, and the connecting block 42 is vertically provided with a connecting rod 421, and the guide rod 511 and the connecting rod 421 are respectively hinged to the cylinder barrel and the piston rod of the hydraulic piston cylinder 6, so that the hydraulic piston cylinder 6 can perform piston movement more smoothly, and the opening and closing of the two clips 5 can be smoother.

[0046] Example 2

[0047] The difference between this embodiment and embodiment 1 is that the guide structure 11 is a threading groove, the inner diameter of which is twice that of the hose 72. The threading groove is provided throughout the entire threading channel to organize the hose 72, making the hose 72 less prone to bending and twisting, and facilitating the movement and conduction of the hydraulic oil. The clip 5 is arc-shaped, with a rectangular hole 51 provided at the rear of the clip 5. The upper and lower frames of the rectangular hole 51 are provided with tracks. The tracks are arc-shaped grooved tracks, and a guide rod 511 is provided within the track. The guide rod 511 is connected to the track by a groove pin pair. The connecting block 42 is vertically provided with a connecting rod 421. The guide rod 511 and the connecting rod 421 are respectively hinged to the cylinder barrel and piston rod of the hydraulic piston cylinder 6, making the piston movement of the hydraulic piston cylinder 6 smoother and making the opening and closing of the two clips 5 smoother.

[0048] Example 3

[0049] The difference between this embodiment and embodiment 1 is that the distal end of the tube body 2 is connected to the displacement limiting frame 3 in a moving pair, and the displacement limiting frame 3 is provided with a docking port at the position where it docks with the tube body 2. The docking port slides with the outer wall of the tube body 2, and the inner side wall of the docking port is provided with a circumferential positioning groove. The outer wall of the tube body 2 is provided with a circumferential positioning protrusion matched with the circumferential positioning groove. Anti-slip mechanisms are provided at both ends of the circumferential positioning groove. The anti-slip mechanisms can be limit plates and / or limit blocks, which can effectively prevent the tube body 2 from being separated from the displacement limiting frame 3. The setting of the moving pair can provide another buffer space for the present disclosure. When the present disclosure is in use, the installer slowly moves the artificial middle ear actuation. Before the actuator 83 is sent into the ear canal, an operation step is added. This step is to separate the tube body 2 and the displacement limiting frame 3 as far as possible to both sides within the freedom limit of the moving pair before sending it into the ear canal. The separated space is another buffer space of the present invention when sending the actuator 83 into the ear canal. When the actuator 83 and the clip 5 encounter obstacles or collisions in the ear canal, the buffer space will shrink first because there is no support constraint to achieve a buffering function. The installer does not need to pay attention to the position of the push rod 43 and the scale line 21 all the time. After the compression of the buffer space is completed, the position of the push rod 43 can be observed. It is easy to use and increases the speed and convenience of installation. The clip 5 is arc-shaped, and a rectangular hole 51 is provided at the rear of the clip 5. The upper and lower frames of the rectangular hole 51 are provided with tracks. The tracks are arc grooves. A guide rod 511 is provided in the track. The guide rod 511 is connected to the track in a groove pin pair. The connecting block 42 is vertically provided with a connecting rod 421. The guide rod 511 and the connecting rod 421 are respectively hinged to the cylinder barrel and the piston rod of the hydraulic piston cylinder 6, so that the hydraulic piston cylinder 6 can move the piston more smoothly, making the opening and closing of the two clips 5 smoother.

[0050] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A special mounting fixture for an eardrum-excitation artificial middle ear actuator, comprising a housing (1), characterized in that: The shell (1) is fixed with a tube body (2), and the internal cavities of the shell (1) and the tube body (2) are connected to each other to form a tube passage, and the distal end of the tube body (2) is connected to a displacement limiting frame (3); the distal end of the displacement limiting frame (3) is penetrated through the outer surface to form two congruent long holes (31), the long axis of the long hole (31) is parallel to the axis of the tube body (2), and a limit pin (4) is inserted into the two long holes (31) and slidably matched. The limit pin (4) is connected to the two long holes (31) in a groove pin pair, and a section of the limit pin (4) between the two long holes (31) is set as a hinge section (41), and the hinge section (41) is connected to a connecting block (42) facing the tube body (2). The hinge section (41) is also hinged to two matching clips. (5), the clip (5) has an outward-expanding curved surface structure, the rear of each clip (5) is connected to the connecting block (42) through a hydraulic piston cylinder (6), the hydraulic piston cylinder (6) is equipped with a control device (7), and the control device (7) is fixed to the housing (1); one end of the limit pin (4) is vertically connected to the push rod (43), the outer surface of the displacement limiting frame (3) is connected to the support (32), the support (32) is provided with a limit through hole (321), the axis of the limit through hole (321) is parallel to the axis of the tube body (2), the push rod (43) and the limit through hole (321) are slidably matched, a support spring (34) is provided between the limit pin (4) and the support (32), and the moving stroke of the push rod (43) is equipped with a scale line (21).

2. The special mounting fixture for the eardrum-excitation artificial middle ear actuator according to claim 1, characterized in that: The control device (7) includes a hydraulic controller (71), which is fixed inside the housing (1). The hydraulic controller (71) includes a cylinder (711), a hose (72) is connected to the front end of the cylinder (711), and the other end of the hose (72) is connected to the hydraulic piston cylinder (6). A plunger rod (712) is provided in the cylinder (711), and a push plate (73) is connected to the rear end of the plunger rod (712). The push plate (73) is connected to a control button (74). A return spring (75) is provided between the push plate (73) and the control button (74). The pressing portion of the control button (74) is provided on the outer surface of the housing (1).

3. The special mounting fixture for the eardrum-excitation artificial middle ear actuator according to claim 2, characterized in that: The outer shell (1) is shaped like a gun handle, the tube body (2) is placed on one side of the upper part of the outer shell (1), and a guide structure (11) acting on the hose (72) is provided in the tube passage.

4. The special mounting fixture for the eardrum-stimulating artificial middle ear actuator according to claim 1, characterized in that: The distal end of the tube body (2) is connected to the displacement limiting frame (3) in a movable pair.

5. The special mounting fixture for the eardrum-stimulating artificial middle ear actuator according to claim 1, characterized in that: The two long holes (31) are respectively arranged on the upper and lower bottom surfaces of the displacement limiting frame (3), and both sides of the displacement limiting frame (3) are open structures.

6. The special mounting fixture for the eardrum-stimulating artificial middle ear actuator according to claim 5, characterized in that: The upper portion of the limit pin (4) is provided with a through hole for arranging a push rod (43), the support (32) is arranged on the upper surface of the displacement limiting frame (3), and the displacement limiting frame (3) is provided with a avoidance groove (33) in the projection area of the push rod (43).

7. The special mounting fixture for the eardrum-stimulating artificial middle ear actuator according to claim 5, characterized in that: A rectangular hole (51) is provided at the rear of the clip (5), and tracks are provided at the upper and lower frames of the rectangular hole (51). A guide rod (511) is provided in the track, and the guide rod (511) is connected to the track in a groove pin pair. A connecting rod (421) is vertically provided on the connecting block (42), and the guide rod (511) and the connecting rod (421) are respectively hinged to the cylinder barrel and the piston rod of the hydraulic piston cylinder (6).

8. The special mounting fixture for the eardrum-stimulating artificial middle ear actuator according to claim 7, characterized in that: The track is a linear groove track and / or a waist-shaped hole.

9. The special mounting fixture for the eardrum-stimulating artificial middle ear actuator according to claim 4 or 5, characterized in that: The scale lines (21) are provided on the outer surface of the tube body (2).

10. The special mounting fixture for the eardrum-stimulating artificial middle ear actuator according to claim 5, characterized in that: A clamping adaptation curved surface (52) is provided on the inner side of the front end of the clip (5), and the outer width of the maximum opening of the two clips (5) does not exceed 4.5 mm.

Images