CN115103283B

CN115103283B - Device for assisting in wearing eardrum excitation type artificial middle ear

Info

Publication number: CN115103283B
Application number: CN202210537784.6A
Authority: CN
Inventors: 王成; 刘后广; 吕振礼; 刘送永; 杨建华; 刘乐; 巩乙璇; 李佳音; 王雨柔; 涂崇毅
Original assignee: China University of Mining and Technology CUMT
Current assignee: China University of Mining and Technology CUMT
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2023-03-14
Anticipated expiration: 2042-05-17
Also published as: CN115103283A

Abstract

The invention discloses a device for assisting in wearing eardrum excitation type artificial middle ear, which comprises a feeding device, a mineral oil lubricating device, an actuator clamp device and a head-wearing type fixing structure, wherein the head-wearing type fixing structure comprises a head beam structure and earmuffs for bearing, a tubular protective shell corresponding to an ear canal is formed on the inner side of each earmuff, the actuator clamp device comprises a transmission worm arranged in the tubular protective shell, the inner side end of the transmission worm is connected with a transmission worm wheel, the transmission worm wheel is connected with a clamp for clamping an actuator, the mineral oil lubricating device comprises a tubular element arranged in the tubular protective shell, the inner side end of the tubular element is connected with a spray head, the feeding device comprises a feeding screw rod arranged in the tubular protective shell and a feeding nut in threaded connection with the inner side end of the feeding screw rod, and a patient can mount and pick up the artificial middle ear actuator by himself.

Description

Device for assisting in wearing eardrum excitation type artificial middle ear

Technical Field

The invention relates to the technical field of artificial middle ear instruments, in particular to a device for assisting in wearing an eardrum excitation type artificial middle ear.

Background

Currently, hearing impairment is one of the diseases that affect people's normal life. Hearing impairment can be classified into sensorineural hearing impairment and conductive hearing impairment according to the location of the injury in the ear. With the development of otologic medical research, most patients with conductive hearing impairment can improve hearing by means of surgery. However, the sensorineural hearing impairment patient cannot be treated by surgery or medicine at present, and only the hearing can be improved by wearing a hearing aid. However, the traditional hearing aid has the defects of insufficient high-frequency gain, accompanying acoustic feedback, having an ear-blocking effect, low definition and the like. These deficiencies make many patients reluctant to wear hearing aids. Therefore, a new hearing aid device, i.e., an artificial middle ear, for compensating hearing impairment by mechanical excitation has been studied at home and abroad.

The artificial middle ear is a device which acts the output end of an actuator on an eardrum, an auditory ossicle or a round cochlear window, drives ear tissues to move by converting external sound signals sensed in vitro into mechanical vibration of the actuator, transmits amplified nerve impulses to the brain and improves the auditory function. The artificial middle ear can be classified into an anvil excitation type, a round window excitation type, an eardrum excitation type, and the like according to the difference in the tissue site in the ear acted by the actuator. The eardrum exciting artificial middle ear has the advantages of no surgical trauma and low cost because the actuator is directly attached to the eardrum and the implantation operation is not needed.

The ear drum excitation type artificial middle ear mainly comprises a microphone, a signal transmitting device, an actuator, a signal processing module and a power supply (arranged behind an auricle). The power supply supplies power to other parts to enable the other parts to normally operate; the microphone is used for receiving an external sound signal, converting a sound vibration signal into an electric signal and transmitting the signal to the signal processing module; the signal processing module is used for carrying out corresponding processing such as noise reduction, amplification, filtering and the like on the signals transmitted by the microphone according to the hearing impairment degree of a patient and transmitting the processed signals to the signal transmitting device at the position of the ear canal; the signal transmitting device transmits the driving signal to an actuator attached to the eardrum; after the actuator receives the signal transmitted by the signal transmitting device through the signal receiving module on the actuator, the actuator does mechanical vibration to drive the eardrum, so that the auditory ossicles (malleus, incus and stapes) behind the eardrum are driven to vibrate, and the vibration is transmitted to the cochlea responsible for sensing sound through the stapes, thereby achieving the effect of compensating hearing damage.

For the wearing process of the eardrum vibration type actuator, the actuator is actually placed at a position where the actuator is attached to the eardrum. However, because the space of the external auditory canal is extremely narrow, the actuator is not easy to be directly operated by hands to realize better fit between the actuator and the eardrum in the wearing process of the actuator. Firstly, the contact force between the actuator and the eardrum is difficult to control during wearing. But the excessive force causes pain to the patient, and even leads to perforation of eardrum seriously; when the force is too small, the actuator can be not firmly attached to the eardrum and is easy to fall off after being worn. It is desirable to control the amount of force that the actuator exerts on the eardrum during installation. Secondly, before the actuator is attached to the eardrum, mineral oil and other auxiliary bonding liquid needs to be applied to the joint of the attaching end of the actuator and the eardrum to ensure that the actuator and the eardrum are tightly bonded together; in the process of installing the actuator, liquid needs to be applied to the eardrum first, and then the actuator is attached to the eardrum, so that the complexity of the installation process is increased. Therefore, the installation process of the eardrum exciting type artificial middle ear actuator is difficult to be directly operated and completed by hands.

Disclosure of Invention

In view of the above technical shortcomings, an object of the present invention is to provide a device for assisting in wearing an eardrum-excited artificial middle ear, wherein a patient can mount and dismount an actuator of the artificial middle ear by himself/herself, the device can adjust the degree of attachment of the actuator to the eardrum, control the acting force exerted on the eardrum during the mounting process, avoid the actuator from damaging the eardrum due to the too large degree of adjustment and acting force exerted on the eardrum, and apply a mineral oil or other adhesive liquid to the eardrum when the actuator is coupled to the eardrum, so as to further improve the effect of attachment of the actuator to the eardrum.

In order to solve the technical problem, the invention adopts the following technical scheme:

the invention provides a device for assisting in wearing eardrum-excited artificial middle ear, which comprises a feeding device, a mineral oil lubricating device, an actuator clamp device and a head-worn fixing structure, wherein the head-worn fixing structure comprises a head beam structure for bearing, an earmuff for fitting the auricle is formed at the lower part of the head beam structure, a tubular protective shell corresponding to the auditory canal is formed at the inner side of the earmuff, the actuator clamp device comprises a transmission worm arranged in the tubular protective shell, the inner side end of the transmission worm is connected with a transmission worm wheel, the transmission worm wheel is connected with a clamp for clamping an actuator, the outer side end of the transmission worm extends into the earmuff, a clamp knob capable of driving the transmission worm to rotate is arranged on the earmuff, the mineral oil lubricating device comprises a tubular element arranged in the tubular protective shell, the inner side end of the tubular element is connected with a spray head, the outer side end of the tubular element extends into the earmuff and is communicated with a hydraulic cylinder, a piston knob for driving a piston rod of the hydraulic cylinder to press liquid in the hydraulic cylinder into the tubular element is arranged on the earmuff, the feed worm wheel is connected with a screw rod, a screw rod and a screw rod fixing nut which are arranged in the protective shell, a screw rod and a feed screw rod fixing groove which are connected with the feed nut, and a feed screw rod fixing structure, and a feed screw rod fixing groove are correspondingly arranged in the feed screw rod fixing structure, and used for limiting the feed screw rod, and the feed screw rod fixing nut, and a feed screw rod fixing structure, and a feed screw rod fixing nut are correspondingly arranged in the feed screw rod, and a feed screw rod fixing groove, and a feed screw rod fixing structure, and a feed screw rod fixing groove are correspondingly arranged in the feed screw rod fixing structure.

Preferably, torque limiter sets up in the ear muff, torque limiter includes ratchet, pawl, spring and driven rotation axis, driven rotation axis is both ends confined column casing, the knob axle that feeds the knob is worn to be equipped with in the axle center of driven rotation axis, the ratchet cover is established at the knob epaxially and can be rotated along with the knob axle, the both ends that the column casing was installed to the pawl correspond with the ratchet, the spring is fixed between two adjacent pawls, the outside that the inboard end of knob axle was worn out driven rotation axis is fixed with reduction gear set, reduction gear set is including fixing the reduction gear wheel on feeding screw, fixing the epaxial reduction pinion of knob with reduction gear wheel complex.

Preferably, the piston knob is connected to the piston rod by a slider-crank arrangement.

Preferably, the hydraulic cylinder comprises a mucus storage cavity, a piston movement cavity and a mucus outlet, the piston rod is installed in the piston movement cavity, the mucus storage cavity is communicated with the piston movement cavity, the piston movement cavity is communicated with the mucus outlet, the mucus outlet is communicated with the tubular element, a one-way valve I is arranged between the mucus storage cavity and the piston movement cavity, and a one-way valve II is arranged between the piston movement cavity and the mucus outlet.

Preferably, two concave rectangular guide rails are formed on the outer side of the feed nut, and a convex rectangular guide rail corresponding to the concave rectangular guide rails is formed on the inner side of the tubular protective shell.

Preferably, the tubular element is made of flexible resin material, and the tubular element and the feed nut are fixedly arranged and can perform axial feed movement along with the feed nut.

Preferably, the inner side end of the transmission worm is in threaded connection with the feeding nut, and the outer side end of the transmission worm is of a rectangular structure matched with the clamp knob.

Preferably, the outer side of the rotating shaft of the clamp knob is a circular shaft, and the inner part of the rotating shaft of the clamp knob is a rectangular groove corresponding to the transmission worm.

Preferably, the shaft of the transmission worm wheel is in threaded connection with the feed nut, the shafts at two ends of the transmission worm wheel are provided with external threads with opposite screwing directions, and the clamp is in threaded connection with the shaft of the transmission worm wheel.

The invention has the beneficial effects that:

1. the operating device of the invention is a feeding knob, a piston knob and a clamp knob which are fixed on the outer side of the head-wearing fixed structure shell; when the device is used, the purposes of feeding, lubricating, clamping and releasing the actuator and the like can be achieved by only fixing the device on the head and adjusting the knob, so that the installation difficulty of the eardrum excitation type artificial middle ear actuator is greatly reduced, and a patient can wear the actuator by the device at home;

2. the feeding device converts the rotary motion into the axial feeding motion through the lead screw nut, and the feeding nut and the element fixed on the feeding nut axially feed when the feeding knob is rotated, so that the artificial middle ear actuator can be sent into the deep part of the auditory canal and attached to the eardrum; in addition, the torque limiter can limit the resistance applied to the feeding motion of the actuator, namely when the resistance of the feeding motion is increased to the safety limit when the actuator is coupled with the eardrum, the torque limiter breaks the rotary transmission because the torque and the resistance are in direct proportion, thereby protecting the eardrum; by adopting the mode, when the eardrum exciting type artificial middle ear actuator is placed, the eardrum cannot be pierced by the larger axial feeding force of the actuator, and the eardrum contact force control during the installation of the actuator is realized; the realization of the control function of the contact force between the actuator and the eardrum during the installation avoids the problems that the contact force between the actuator and the eardrum cannot be controlled and is easy to be too small or too large during the direct manual installation, and the contact force with the eardrum is too small, so that the actuator is not firmly attached to the eardrum and is easy to be separated; excessive contact force can cause perforation of the eardrum, resulting in further conductive hearing loss for the patient.

3. According to the mineral oil lubricating device, the rotary motion is converted into the linear reciprocating motion of the piston through the slider-crank mechanism, when the clamp and the artificial middle ear actuator reach the eardrum, the piston reciprocates when the piston knob is rotated, and the bonding liquid is continuously sprayed out of the spray head and is sprayed onto the eardrum, so that the attaching effect of the actuator on the eardrum is improved; this kind of supplementary integration of spraying function of bonding liquid is realized, it is more convenient to make eardrum department bonding liquid before the installation of actuator spray, bonding liquid sprays the position on the eardrum, it is accurate to spray the volume, and can let actuator installation action realize immediately, shortened the bonding liquid spray with the actuator installation between two actions the time of being separated by, ensured that the bonding liquid can not solidify because latency is longer, promoted the bonding effect of actuator and eardrum, make the actuator after the installation difficult for droing.

4. The actuator clamp device converts the rotary motion into the linear clamping and releasing motion of the clamp through the worm gear structure and the lead screw nut structure, and can control and maintain the working state of the clamp including the clamping and releasing motion through rotating the clamp knob, so that the aim that the clamp and the feeding motion are not mutually influenced in different working states is fulfilled.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic view of the structure of the ear-drum exciting artificial middle ear.

FIG. 2 is a schematic view of the in-ear mounting of the actuator.

FIG. 3 is a schematic diagram of an external structure of an embodiment of the present invention;

FIG. 4 is a schematic structural view of the embodiment of the present invention with the head-mounted fixing structure removed;

FIG. 5 is a schematic view of the feeding device in the embodiment of FIG. 4;

FIG. 6 is a schematic diagram of the torque limiter of the embodiment of FIG. 5;

FIG. 7 is a schematic view of the nut of the embodiment of FIG. 5;

FIG. 8 is a schematic structural view of a mineral oil lubricating apparatus in the embodiment of FIG. 4;

FIG. 9 is an exploded view of the actuator clamp device of the embodiment of FIG. 4.

In the figure: 1. an external auditory canal; 2. an eardrum; 3. a malleus; 4. an incus; 5. a stapes; 6. the cochlea; 7. a signal processing module and a power supply; 8. a microphone; 9. a coil; 10. an actuator; 100. a feeding device; 200. a mineral oil lubricating device; 300. an actuator clamp device; 400. a head-mounted fixation structure; 110. a feed knob; 120. a torque limiter; 121. a driven rotating shaft; 122. a pawl; 123. a ratchet wheel; 124. a spring; 130. a reduction pinion gear; 140. a deceleration gearwheel; 150. a feed screw; 160. a feed nut; 161. a threaded hole; 162. a tubular member fixing through hole; 163. an inwardly concave rectangular guide rail; 164. a transmission worm wheel fixing groove; 165. a clamp movement guide rail; 166. the transmission worm is fixed with the through hole; 210. a piston knob; 220. a slider-crank arrangement; 230. a piston rod; 240. a hydraulic cylinder; 241. a mucus outlet; 242. a piston motion cavity; 243. a mucus storage chamber; 244. a second one-way valve; 245. a one-way valve I; 250. a tubular element; 260. a spray head; 310. a clamp knob; 320. a drive worm; 330. a drive worm gear; 340. a clamp; 410 a head beam structure; 420, earmuffs; 430. a tubular protective shell; 431. a convex rectangular guide rail.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 and 2 are prior arts, wherein fig. 1 is a schematic structural diagram of an eardrum-excited artificial middle ear; FIG. 2 is a schematic view of the actuator mounted in the ear; in the figure: 1. external auditory canal, 2, eardrum, 3, malleus, 4, incus, 5, stapes, 6, cochlea, 7, signal processing module and power supply, 8, microphone, 9, coil, 10, actuator.

The embodiment as shown in fig. 3-9 provides a device for assisting in wearing an eardrum-excited artificial middle ear, which comprises a feeding device 100, a mineral oil lubricating device 200, an actuator fixture device 300 and a head-mounted fixing structure 400.

The feeding device 100 includes a feed knob 110, a reduction gear set, a torque limiter 120, a feed screw 150, and a feed nut 160 for converting a rotational movement of the feed knob 110 into an axial feed movement of the feed nut 160. The feed knob 110 is fixed to the fixed-structure head-mounted earmuff 420 shell and can rotate around its center of rotation; the feed knob 110 is coaxially driven with the torque limiter ratchet 123. The reduction gear set comprises a reduction pinion 130 and a reduction gearwheel 140 which are matched with each other; the driven rotary shaft 121 of the torque limiter 120 is coaxially driven with the reduction pinion 130. The reduction gear wheel 140 is coaxially driven with the feed screw 150. The outer side of the feeding nut 160 is symmetrically provided with concave rectangular guide rails 163, which are matched with the head-mounted fixed structure tubular protective shell 430 in a guide rail manner, so that the feeding nut 160 is prevented from rotating while axial feeding is ensured.

The mineral oil lubricating apparatus 200 includes a plunger knob 210, a plunger rod 230, a hydraulic cylinder 240, a tubular member 250, and a spray head 260. The piston knob 210 is fixed to the shell of the head-mounted fixed structure ear cup 420 and can rotate around the rotation center thereof; the plunger knob 210 is connected to the plunger rod 230 in a slider-crank configuration 220 to convert the rotational motion of the plunger knob 210 into a linear reciprocating motion of the plunger rod 230. The cylinder viscous fluid outlet 241 is connected to the spray head 260 through a tubular member 250. The spray head 260 is fixed to the feed nut 160 and is fed by the feed nut 160, and the spray head 260 of this embodiment is constructed in a conventional manner known to those skilled in the art, and is connected to the tubular member 250 in a conventional manner known to those skilled in the art, and will not be described in detail herein.

The actuator clamp device 300 includes a clamp knob 310, a drive worm 320, a drive worm gear 330, and a clamp 340 for converting rotational motion of the clamp knob 310 into linear clamping and release motion of the clamp 340. The clamp knob 310 is fixed to the head-mounted fixture 400 housing and can rotate around its rotation center; the clamp knob 310 rotates coaxially with the drive worm 320. The central shaft of the transmission worm gear 330 is engaged with the clamp 340 in the form of a lead screw nut. The gripper 340 is secured to the feed nut 160 and is advanced with the feed nut 160. The worm gear 330 is fixed to the feed nut 160 to be rotatable about its rotational center, and is engaged with the worm gear 320. The worm gear 330 has external threads with opposite directions at both ends of the shaft. The fixture 340 is in threaded connection with the shaft of the transmission worm gear 330, and forms a screw nut fit relation with the shaft of the transmission worm gear 330.

The torque limiter 120 includes a ratchet wheel 123, a pawl 122, a spring 124, and a driven rotational shaft 121. The ratchet wheel 123 is a driving member. The driven rotation shaft 121 is a follower. In the feeding process, the ratchet wheel 123 and the driven rotating shaft 121 rotate synchronously, when the actuator moves forwards to the position of the eardrum, the feeding resistance is increased, the spring 124 deforms because the torque and the resistance are in a direct proportion relationship, and the ratchet wheel 123 cannot drive the driven rotating shaft 121 to rotate.

Two inward concave rectangular guide rails 163 are arranged on the outer side of the feed nut 160, two outward convex rectangular guide rails 431 are arranged on the inner side of the tubular protective shell 430, and the tubular protective shell 430 is matched with the feed nut 160 through the guide rails and plays a role in guiding the feed nut 160 and simultaneously prevents the feed nut 160 from rotating during feeding. The feed nut has a tubular member fixing through hole 162, a screw hole 161, a drive worm fixing through hole 166, a drive worm wheel fixing groove 164, and a jig moving guide 165 formed therein.

The head-mounted fixation structure 400 includes a head beam structure 410, ear cups 420, and a tubular protective shell 430. The head-mounted fixing structure 400 bears the weight through the head beam structure 410, is attached to the external auricle through the ear muffs 420, plays a role in stabilizing, and the internal space of the ear muffs 420 is used for storing and protecting various elements. The inside of the head-mounted fixture 400 has a tubular protective shell 430 with a male rectangular rail 431 corresponding to the female rectangular rail 163 to protect the internal components and guide the feed nut 160, and to further enhance the stability of the device in the ear canal.

The hydraulic cylinder 240 includes a viscous liquid storage chamber 243, a piston movement chamber 242, and a viscous liquid outlet 241. Between the mucus storage chamber 243 and the piston movement chamber 242 is a one-way valve 245 from the mucus storage chamber 243 to the piston movement chamber 242. A second one-way valve 244 from the piston moving cavity 242 to the mucus outlet 241 is arranged between the piston moving cavity 242 and the mucus outlet 241. The mucus outlet 241 is connected to the spray head 260 by a tubular member 250.

The tubular member 250 is secured to the feed nut 160 and undergoes an axial feed movement with the feed nut 160. The front end of the tubular element 250 is connected with the spray head 260, and the tail end is connected with the viscous liquid outlet 241 of the hydraulic cylinder. The tubular member 260 is made of a flexible resin material, and it is easy to adjust the attitude of the head 260 and compensate for the distance change of the viscous liquid outlet 241 from the head 260 during the feeding movement.

The driving worm 320 is fixed to the feed nut 160 and is fed with the feed nut 160 while being rotatable about its rotational center. The front end of the transmission worm 320 is in a thread structure and is matched with the transmission worm wheel 330; the rear end is a rectangular structure that mates with the clamp knob 310.

The clamp knob 310 has a circular shaft outside the rotation shaft and a rectangular groove inside. The rectangular groove in the rotating shaft is matched with the rectangular structure of the transmission worm 320, so that the axial displacement generated by the feeding motion of the transmission worm 320 can be compensated while the rotating power is transmitted.

The earmuffs 420 of this embodiment are constructed in a conventional manner as known to those skilled in the art and are coupled to other components of this embodiment in a conventional manner as known to those skilled in the art and will not be described in detail herein.

The working principle and the working process are as follows:

before a user installs the artificial middle ear actuator by himself, mineral oil lubrication mucus needs to be injected into a small reserved hole of a mucus storage cavity of the hydraulic cylinder, and the clamp knob is adjusted to enable the clamp to fix the artificial middle ear actuator and adjust the position of the spray head.

In the process of auxiliary wearing of the artificial middle ear, a user fixes the head-wearing type fixing structure on the outer auricle, the ratchet wheel rotates coaxially by rotating the feeding knob, the acting force exerted on the spring between the ratchet wheel and the pawl does not reach a critical value, so that the ratchet wheel and the pawl are relatively static, and the driven rotating shaft transmits power to the gear. A pair of meshed big and small gears is used for reducing the rotating speed of the transmission screw rod, so that the transmission is stable. The transmission nut is provided with the concave rectangular guide rail, and the transmission nut and other elements fixed on the transmission nut cannot rotate in the process of being meshed with the convex rectangular guide rail of the tubular protective shell, so that the rotary motion of the clamp knob is converted into low-speed axial linear feeding motion. When the artificial middle ear actuator is attached to the eardrum, the resistance of the feed motion is increased, the acting force exerted on the spring of the torque limiter reaches a critical value due to the fact that the torque and the resistance are in a direct proportion relation, the ratchet wheel and the pawl rotate relatively, the clamp knob and the driven rotating shaft are disconnected for transmission, and the eardrum is protected from being damaged.

When the artificial middle ear actuator is attached to the eardrum, the piston knob is rotated, and the piston is driven to linearly reciprocate by the slider-crank mechanism. The lubricating mucus moves in one direction from the mucus storage cavity to the mucus outlet through the piston movement cavity due to the fact that the mucus storage cavity and the mucus outlet are respectively provided with the one-way valve. The mucus outlet is connected with the spray head through a tubular element, and the tubular element is fixed on the feed nut and can deform, so that the posture of the spray head can be ensured on one hand, and the displacement of the tubular element and the feed nut in the feeding process can be compensated on the other hand. Rotation of the piston knob causes the lubricating mucus to spray into a position between the actuator and the eardrum.

When the artificial middle ear actuator is attached to the eardrum, the clamp knob is rotated, and the rotation motion is transmitted to the transmission worm wheel through the transmission worm. The rotating shaft of the transmission worm wheel is a rotating shaft with external threads, and the thread directions of two ends of the rotating shaft are opposite. The clamp has a threaded hole in the direction of movement that mates with the rotating shaft threads. The fixture is fixed on the transmission nut, and the transmission nut is provided with a linear motion guide rail matched with the fixture, so that the worm wheel rotating shaft, the fixture and the transmission nut form a new lead screw nut pair. Rotating the clamp knob may convert the rotational motion into linear clamping and release motion of the clamp. The tail end of the transmission worm is a rectangular shaft and is matched with a rectangular groove of the clamp knob to transmit rotary motion, the displacement of the transmission worm along with the feeding motion of the feeding nut is compensated, and the transmission worm can still be matched with the clamp knob to transmit rotary motion.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A device for assisting in wearing an eardrum-excited artificial middle ear, comprising a feeding device (100), a mineral oil lubrication device (200), an actuator clamp device (300) and a head-mounted fixed structure (400), wherein the head-mounted fixed structure (400) comprises a head beam structure (410) for bearing, the lower part of the head beam structure (410) is formed with ear shields (420) for fitting to the auricle, the inner sides of the ear shields (420) are formed with tubular protective housings (430) corresponding to the ear canals, the actuator clamp device (300) comprises a transmission worm (320) arranged in the tubular protective housings (430), the inner side end of the transmission worm (320) is connected with a transmission worm wheel (330), the transmission worm wheel (330) is connected with a clamp (340) for clamping the actuator, the outer side end of the transmission worm (320) extends into the ear shields (420), a clamp knob (310) capable of driving the transmission worm (320) to rotate is arranged on the ear shields (420), the mineral oil lubrication device (200) comprises a tubular element (250) arranged in the tubular protective housing (430), the tubular element (250) extends into the ear shields (420), the tubular hydraulic cylinder (240) is connected with a hydraulic cylinder (240), and the inner side end of the tubular hydraulic cylinder (240) is connected with a driving hydraulic cylinder (240) for driving hydraulic cylinder (230) for driving the ear shield (240) The feeding device (100) comprises a feeding screw rod (150) arranged in a tubular protective shell (430) and a feeding nut (160) in threaded connection with the end of the inner side of the feeding screw rod (150), a transmission worm fixing through hole (166) corresponding to a transmission worm (320), a transmission worm wheel fixing groove (164) corresponding to a transmission worm wheel (330), a clamp moving guide rail (165) corresponding to a clamp (340) and a tubular element fixing through hole (162) corresponding to the tubular element (250) are arranged in the feeding nut (160), and the end of the outer side of the feeding screw rod (150) extends into an ear cup (420) and is connected with the feeding knob (110) which is arranged on the ear cup (420) and used for driving the feeding screw rod (150) to rotate sequentially through a reduction gear set and a torque limiter (120).

2. The device for assisting in wearing the eardrum-excited artificial middle ear according to claim 1, wherein the torque limiter (120) is disposed in the ear cup (420), the torque limiter (120) comprises a ratchet wheel (123), a pawl (122), a spring (124) and a driven rotating shaft (121), the driven rotating shaft (121) is a cylindrical housing with two closed ends, a knob shaft of the feeding knob (110) is disposed through an axis of the driven rotating shaft (121), the ratchet wheel (123) is sleeved on the knob shaft and can rotate along with the knob shaft, the pawl (122) is installed at two ends of the cylindrical housing and corresponds to the ratchet wheel (123), the spring (124) is fixed between two adjacent pawls (122), an inner end of the knob shaft penetrates through an outer portion of the driven rotating shaft (121) and is fixed to a reduction gear set, and the reduction gear set comprises a reduction gear wheel (140) fixed on the feeding screw (150), and a reduction gear (130) fixed on the knob shaft and matched with the reduction gear wheel (140).

3. A device for assisting the wearing of an eardrum-excited artificial middle ear according to claim 1, wherein the piston knob (210) is connected to the piston rod (230) by a slider-crank arrangement (220).

4. The device for assisting in the wearing of an eardrum-excited artificial middle ear according to claim 1, wherein the hydraulic cylinder (240) comprises a mucus storage chamber (243), a piston movement chamber (242), and a mucus outlet (241), the piston rod (230) is mounted in the piston movement chamber (242), the mucus storage chamber (243) is in communication with the piston movement chamber (242), the piston movement chamber (242) is in communication with the mucus outlet (241), the mucus outlet (241) is in communication with the tubular element (250), a one-way valve one (245) is disposed between the mucus storage chamber (243) and the piston movement chamber (242), and a one-way valve two (244) is disposed between the piston movement chamber (242) and the mucus outlet (241).

5. The device for assisting the wearing of an eardrum-excited artificial middle ear according to claim 1, wherein the feed nut (160) is symmetrically formed with two concave rectangular rails (163) on the outside, and the tubular protective shell (430) is formed with a convex rectangular rail (431) on the inside corresponding to the concave rectangular rails.

6. A device for assisting in the wearing of an eardrum-excited artificial middle ear according to claim 1, characterized in that the tubular element (250) is made of a flexible resin material, the tubular element (250) being fixedly arranged with the feed nut (160) for axial feed movement with the feed nut (160).

7. The device for assisting in the wearing of an eardrum-excited artificial middle ear according to claim 1, wherein the inner end of the driving worm (320) is threadedly connected to the feed nut (160), and the outer end of the driving worm (320) has a rectangular configuration for cooperating with the clamp knob (310).

8. The device for assisting the wearing of an eardrum-excited artificial middle ear according to claim 7, wherein the fixture knob (310) has a rotation axis with a circular axis on the outside and a rectangular recess corresponding to the driving worm (320) on the inside.

9. The device for assisting in wearing an eardrum-excited artificial middle ear according to claim 1, wherein the shaft of the driving worm wheel (330) is screw-coupled to the feed nut (160) and the shafts at both ends of the driving worm wheel (330) have external threads with opposite directions of rotation, and the clamp (340) is screw-coupled to the shaft of the driving worm wheel (330).