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188 results about "Tympanic Membranes" patented technology

Otological disease auxiliary diagnosis large model construction method and large model system

PendingCN120527010AMedical simulationHealth-index calculationEardrum & middle earMedical record
The invention provides an otological disease auxiliary diagnosis large model construction method and a large model system, and relates to the technical field of multi-modal learning modeling, and the method comprises the following steps: building four diagnosis sub-models, comprising a hearing loss evaluation model, an auditory meatus and tympanic membrane / middle ear state or lesion evaluation model, an auditory meatus and middle ear structure evaluation model and a medical history and medical record model. The four diagnosis sub-models are trained; the outputs of the four diagnosis sub-models are fused, and a large ear disease clinical diagnosis model is constructed; evaluating and optimizing the performance of the otological disease clinical diagnosis large model; according to the method, multiple sub diagnosis models are fused, multi-source heterogeneous data are used for training, the generalization ability of the model can be improved, the model can adapt to different application scenes, the decision process of the model can be better understood by analyzing the output of each sub diagnosis model, and the credibility of the model is improved.
Owner:SHENSHAN MEDICAL CENT MEMORIAL HOSPITAL OF SUN YAT-SEN UNIV

Tympanic membrane repair postoperative wound assessment method based on artificial intelligence

InactiveCN120477708AMedical simulationMedical data miningWound assessmentBiomechanics
The invention discloses a tympanic membrane repair postoperative wound assessment method based on artificial intelligence, and relates to the technical field of medical assessment, and the method comprises the steps: obtaining multi-modal image data of a reference tympanic membrane and a target tympanic membrane through a multi-modal dynamic imaging fusion technology, determining a target biomechanical feature ratio through a biomechanical feature fusion technology, and obtaining a target tympanic membrane target biomechanical feature ratio; the method further comprises the steps of obtaining a physiological parameter set of the reference tympanic membrane and the target tympanic membrane, training an associated parameter prediction model to construct a metabolism-mechanical associated model, and achieving accurate evaluation of tympanic membrane wound healing conditions. The invention also covers related electronic equipment, a computer readable storage medium and a computer program product.
Owner:GUANGZHOU TWELFTH PEOPLES HOSPITAL (GUANGZHOU OCCUPATIONAL DISEASE PREVENTION & CONTROL HOSPITAL)

System for treating ear disorders

PendingUS20250281036A1Ear treatmentOtoscopesEardrum repairCholesteatoma
Systems and methods can be employed for trans-tympanic membrane access to the middle ear for delivery of a formulation to a targeted site under direct visualization. The systems and methods can also be used to improve accessibility and visualization for various otological surgical procedures, such as, but not limited to, cholesteatoma removal, tympanic membrane repair and ossicular chain repair.
Owner:SPIRAL THERAPEUTICS INC

Machine learning for otitis media diagnosis

Disclosed herein are systems and methods for classifying a tympanic membrane by using a classifier. The classifier is a machine learning algorithm. A method for classifying a tympanic membrane includes steps of: receiving, from an interrogation system, one or more datasets relating to the tympanic membrane; determining a set of parameters from the one or more datasets, wherein at least one parameter of the set of parameters is related to a dynamic property or a static position of the tympanic membrane; and outputting a classification of the tympanic membrane based on a classifier model derived from the set of parameters. The classification comprises one or more of a state, a condition, or a mobility metric of the tympanic membrane.
Owner:OTONEXUS MEDICAL TECHNOLOGIES INC

Earphone

An earphone comprises a rear feedback microphone, an earmuff front shell and a sound outlet nozzle, an accommodating groove of the earmuff front shell is communicated with the sound outlet nozzle, the accommodating groove accommodates a first loudspeaker and a second loudspeaker, and the front feedback microphone, the first loudspeaker and the second loudspeaker are arranged in sequence. The rear feedback microphone is arranged at the sound outlet nozzle so as to be close to the tympanic membrane of the earphone wearer as much as possible, the sound collected by the rear feedback microphone is closer to the sound heard by the earphone wearer, and the earphone can adjust the anti-phase environmental noise in real time according to the sound collected by the rear feedback microphone; the first loudspeaker is arranged between the sound outlet nozzle and the second loudspeaker, compared with the second loudspeaker, the phase deviation of the anti-phase environment noise emitted by the first loudspeaker transmitted to the eardrum of an earphone wearer is smaller, and when the first loudspeaker and the second loudspeaker participate in active noise reduction at the same time, the phase deviation of the anti-phase environment noise transmitted to the eardrum of the earphone wearer is smaller. The anti-phase environment noise generated by the first loudspeaker can compensate for the phase deviation of the anti-phase environment noise generated by the second loudspeaker propagating to the tympanic membrane.
Owner:HUAWEI DEVICE CO LTD

Dynamic monitoring and early warning system for abnormal function of Eustachian tube

The invention relates to the technical field of medical data monitoring and early warning, in particular to a dynamic monitoring and early warning system for abnormal function of Eustachian tube. The system is characterized in that a data acquisition module acquires time sequence data of various eustachian tube state parameters such as tympanic chamber vibration, pharyngeal vibration and tympanic chamber air pressure, when a human body is yawn or swallowed, the eustachian tube is opened, the larger the opening is, the stronger the vibration of the tympanic membrane and the pharyngeal is, and the transmission decibel to an external auditory canal is increased, so that a eustachian tube opening section positioning module analyzes the characteristics to determine the auditory canal opening section; the opening amplitude of the Eustachian tube is accurately obtained, and an opening section is accurately cut out; after the Eustachian tube is opened, the air pressure in the tympanic chamber approaches and tends to the external auditory canal air pressure, the health index analysis module divides an approaching section and a leveling section in an opening section based on the air pressure change consistency, analyzes the air pressure change correlation by fusing multi-aspect information, and obtains health indexes by combining section length difference and air pressure difference characteristics; and finally, monitoring and early warning are performed on the Eustachian tube of the monitored object based on the health indexes in a monitoring and early warning module.
Owner:TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH

Tympanic membrane ventilation pipe, conveyor and system thereof

The invention relates to the technical field of medical equipment, in particular to a tympanic membrane ventilation pipe, a conveyor and a catheterization system of the tympanic membrane ventilation pipe. The device is suitable for tympanic membrane ventilation pipe indwelling. The tympanic membrane ventilation pipe comprises an inner claw, a pipe body and an outer claw, the pipe body is a hollow pipe, the two ends of the pipe body are fixedly connected with one end of the inner claw and one end of the outer claw respectively, and the other ends of the inner claw and the outer claw are free ends; the free end is made of memory alloy, is in a straightened state at the temperature of 0 DEG C and is in a bent state at the temperature of 20-40 DEG C. And the inner claw and the outer claw are bent to realize multi-point and internal and external bidirectional fixation. The invention further provides a brand-new conveyor which is used in cooperation with the tympanic membrane ventilation pipe to form a tympanic membrane ventilation pipe indwelling system, tympanic membrane incision is not conducted any more through tympanic membrane ventilation pipe indwelling, the cutting process, the leading-in process and the indwelling process are integrated, the puncture hole diameter size and depth are effectively controlled, accidental injuries are reduced, the operation safety degree is improved, the operation operation is simplified, and the operation duration is shortened.
Owner:LANZHOU SEEMINE SMA CO LTD

Visual constant-temperature flusher for external auditory canal

The invention belongs to the technical field of external auditory canal flushing, and particularly relates to an external auditory canal visible constant-temperature flusher which specifically comprises a heating mechanism, a camera shooting mechanism, a flow control mechanism, a residual liquid collecting mechanism, a flushing pipe assembly, an elastic liquid supply mechanism and a heating mechanism. An infusion tube is connected between the liquid storage bottle and the elastic liquid supply mechanism, an annular heater and a temperature sensor which are tightly attached to the surface of the liquid storage bottle are arranged in the heating mechanism, and the flow control mechanism is arranged on the outer side of the camera shooting mechanism in a sleeving mode. The flow control mechanism is pushed forwards to open the valve from the elastic liquid supply mechanism to the flushing pipe assembly and control the opening and closing degree, the elastic liquid supply mechanism is pressed by the hand to control the flushing flow and draw flushing liquid, the flushing liquid obliquely flushes the external auditory canal from the end of the flushing pipe assembly, stimulation to the tympanic membrane is avoided, and the auditory canal flushing effect is improved. And foreign matters and cerumen are prevented from rushing into the deep part of the auditory meatus by oblique scouring.
Owner:THE SECOND XIANGYA HOSPITAL OF CENT SOUTH UNIV

Automatic positioning method and system for eardrum hydrops surgery catheterization point and storage medium

The invention discloses an automatic positioning method and system for a catheterization point in an eardrum hydrops operation and a storage medium, relates to the technical field of medical image processing, and aims to solve the problem that the existing catheterization point positioning method based on deep learning is generally a black box model, cannot give a basis for recommending the catheterization point by the model, and cannot enable the obtained catheterization point result to be reliable for medical care. The method comprises the following steps: firstly, constructing a tympanic membrane contour data set and an auxiliary point data set; constructing a tympanic membrane segmentation model comprising a noise reduction generation unit, a sensing compression unit and a multi-modal condition coding unit; through dynamic fusion of texture features, a semantic graph and hidden space representation, high-precision segmentation of the tympanic membrane contour of the ear endoscope image is realized. Identifying an in-ear hammer bone handle and an umbilical region of the ear endoscope image through the target detection model; and determining an eardrum hydrops operation catheterization point according to a mirror image relationship between the left ear and the right ear by combining the tympanic membrane profile curve and the identified in-ear hammer bone handle and the umbilical region.
Owner:HEILONGJIANG UNIV

Vocal music loudspeaker with light

The invention relates to the technical field of loudspeakers, in particular to a vocal music loudspeaker with light, which comprises a mounting panel, a loudspeaker opening is formed in the mounting panel, a loudspeaker body is mounted on the right side of the loudspeaker opening and comprises a frame, and a drum membrane, a first elastic metal ring and a second elastic metal ring are arranged on the left portion of the frame. The drum membrane fixing clamp is arranged between the first elastic metal ring and the second elastic metal ring, a baffle is fixedly arranged at the inner ring of the left end of the basin stand, heat dissipation holes are formed in the baffle, a metal substrate is arranged on the right side of the baffle, and the lamp strip is attached to the metal substrate; the right end of the metal substrate and the first elastic metal ring are arranged at an interval, and the interval is filled with sound absorption sponge. The outer edge of the tympanic membrane can drive the first elastic metal ring and the second elastic metal ring to follow up, the tympanic membrane is prevented from being damaged due to the fact that the tympanic membrane exceeds the vibration stroke, meanwhile, airflow exchange between the heat dissipation cavity and the outside is accelerated when the first elastic metal ring and the second elastic metal ring vibrate, and the heat dissipation effect of the heat dissipation cavity is improved.
Owner:XINYANG AGRI & FORESTRY UNIV

Non-contact Hall drum surface vibration sensing and intelligent pronunciation control method and system

The invention relates to the technical field of pronunciation control, and provides a non-contact Hall drumhead vibration sensing and intelligent pronunciation control method and system, and the method comprises the steps: collecting an original Hall sensing electric signal generated when a user knocks a drumhead through a Hall sensor array in a drumhead, carrying out the signal preprocessing of the original Hall sensing electric signal, and obtaining a pre-processed signal; a standard Hall sensing electric signal is obtained, physical characteristic parameters are extracted, and a first tympanic membrane tension parameter, a damping coefficient and a striking position are obtained; obtaining an initial tympanic membrane tension parameter through a tympanic membrane stress sensor, carrying out the comparative analysis of the first tympanic membrane tension parameter and the initial tympanic membrane tension parameter, obtaining a tension decay value, and obtaining a pitch parameter based on a pre-constructed tension decay value-pitch mapping relation. According to the invention, through signal preprocessing and physical characteristic parameter extraction, key quantities reflecting the physical state of the tympanic membrane, such as a tympanic membrane tension parameter, a damping coefficient and a striking position, are systematically extracted, and a real and accurate physical basis is provided for sound generation.
Owner:MUSIC DREAM (BEIJING) TECH CO LTD

Cup-shaped top tray artificial titanium auditory ossicle

The utility model discloses a cup-shaped top plate artificial titanium ossicular which comprises an ossicular plate arranged on one side of a tympanic membrane, an ossicular mechanism used for forming a linear ossicular structure, an adjusting mechanism used for adjusting the installation angle of the ossicular, and a top plate mechanism used for being connected with stapes, the auditory ossicle mechanism is arranged on the side, away from the tympanic membrane, of the auditory ossicle disc, the adjusting mechanism is arranged at the end of the auditory ossicle mechanism, and the top disc mechanism is assembled at the end, away from the auditory ossicle disc, of the auditory ossicle mechanism. The artificial ossicle is simple in structure and suitable for various installation conditions, modular design is adopted, assembling and disassembling are convenient, the top disc mechanism is arranged, the cup-shaped top disc structure is filled with the adaptive rubber pad structure, the connecting position of the top disc mechanism and the stapes can be filled, a gap between the top disc mechanism and the stapes is avoided, and the matching precision between the artificial ossicle and the stapes is effectively improved.
Owner:TANCHENG JINGTAN TECH CO LTD

Portable physiology monitor

Wearable devices capable of measuring a core body temperature and other vital signs of a user in a range of situations are described herein. The wearable device is arranged to be retained within the ear canal of the ear, in order to prevent the wearable device from inadvertently removing itself from the ear. Providing an infrared thermopile at the innermost end of the ear insert ensures that the infrared thermopile is provided as close as possible to the tympanic membrane which will be used to provide an indication of the core body temperature.
Owner:LAKELAND IND INC

A device for aspirating tympanic fluid in the middle ear

ActiveCN119257843BEar treatmentTympanic cavityApparatus instruments
The present invention relates to the field of medical device technology, and in particular to a middle ear tympanic cavity effusion suction device, comprising a puncture needle, the bottom end of the puncture needle is fixedly connected to a hose, the right end of the hose is fixedly connected to a suction port of a suction tube, the puncture needle and the outer side of the suction tube are jointly provided with an auxiliary fixing mechanism, the auxiliary fixing mechanism comprises a movable seat, a deceleration and limiting mechanism is provided at the upper left end of the movable seat, a rotating seat is rotatably provided on the inner side of the connecting plate near the upper end, and a high-efficiency negative pressure mechanism is provided at the bottom end of the rotating seat and on the outer side of the hose. The present invention installs the puncture needle, the hose and the suction tube on the auxiliary fixing mechanism, thereby realizing precise position adjustment of the puncture needle according to the position of the tympanic membrane of different patients, the deceleration and limiting mechanism ensures the controllable puncture speed and depth, and the high-efficiency negative pressure mechanism can effectively control the air and liquid circulation state inside the hose through the forward button and the reverse button.
Owner:THE SECOND HOSPITAL OF HEBEI MEDICAL UNIV

Anti-falling artificial ossicular structure

The utility model discloses an anti-falling artificial ossicular structure which comprises an ossicular disc arranged on one side of a tympanic membrane and further comprises an ossicular mechanism used for forming a multi-section ossicular structure, an adjusting mechanism used for adjusting the ossicular installation angle and a supporting mechanism used for preventing the ossicular from falling off. The auditory membrane mechanism is arranged on the auditory ossicle disc, the auditory ossicle mechanism is arranged on the auditory ossicle disc, the auditory membrane mechanism is arranged on the auditory ossicle disc, the auditory ossicle mechanism is arranged on the side, away from the auditory membrane mechanism, of the auditory ossicle disc, the adjusting mechanism is assembled on the side portion of the auditory ossicle mechanism, and the supporting mechanism is arranged at the end, away from the auditory ossicle disc, of the auditory ossicle mechanism. The mounting angle of the artificial auditory ossicle can be adjusted according to actual conditions, the use flexibility is high, the supporting mechanism is arranged, the artificial auditory ossicle can be stably and reliably supported and fixed between the tympanic membrane and the stapes, the problem of lodging and dislocation is not prone to occurring, the mounting stability is high, the structure is gentle and reliable, and injury to a patient is avoided.
Owner:TANCHENG JINGTAN TECH CO LTD

Liquid quick-dry antibacterial hydrogel for tympanic membrane perforation treatment as well as preparation method and application of liquid quick-dry antibacterial hydrogel

ActiveCN120000853AProsthesisPolyvinyl alcoholTympanic Membrane Perforation
The invention relates to the technical field of biological hydrogel for tympanic membrane treatment, and particularly discloses liquid quick-drying antibacterial hydrogel for tympanic membrane perforation treatment as well as a preparation method and application of the liquid quick-drying antibacterial hydrogel. The liquid quick-dry antibacterial hydrogel for tympanic membrane perforation treatment comprises the following raw materials in percentage by weight: 8-12% of polyvinyl alcohol, 2-4% of oxidized dextran, 15-25% of a functional compound and the balance of a solvent, according to the liquid quick-dry antibacterial hydrogel for tympanic membrane perforation treatment, the film forming characteristic of polyvinyl alcohol is utilized, conversion of a thin film from low modulus to high modulus is completed through quick crosslinking / solvent volatilization, tympanic membrane vibration function recovery is achieved, a novel tympanic membrane perforation treatment mode is formed, the preparation method is simple, preparation conditions are mild, and the hydrogel is suitable for being used for tympanic membrane perforation treatment. The process feasibility is high, the obtained hydrogel is used for tympanic membrane perforation treatment by dropwise adding a simple needle to a tympanic membrane perforation position, and the requirement on the operation level of an operator is avoided.
Owner:JIANGSU APON MEDICAL TECHNOLOGY CO LTD

Tympanic cavity stent and use method thereof

The invention relates to the technical field of medical instruments, and discloses a tympanic stent and a using method thereof.The tympanic stent comprises a top ring, a first connecting rod, a length adjusting rod, a bottom ring, a second connecting rod, a height adjusting rod and a supporting rod, a first notch is formed in the front side of the top ring, and the two ends of the first notch are connected with first free silk threads respectively; the two ends of the first notch are connected with the length adjusting rod, a second notch is formed in the front side of the bottom ring, the two ends of the second notch are connected with second free silk threads respectively, and the height adjusting rod is arranged on the rear side between the top ring and the bottom ring. The whole tympanic cavity stent is in a drum shape, the stent is arranged in a tympanic cavity, and the tympanic cavity does not need to be filled with absorbable materials such as gelatin sponge; the size of the top ring and the size of the bottom ring can be adjusted through the length adjusting rod to be matched with the tympanic chamber, and the inclination angle of the top ring can be adjusted to be matched with the residual tympanic membrane through the height adjusting rod and knotting of the first free silk thread and the second free silk thread. The invention further provides a using method of the support.
Owner:THE FIRST AFFILIATED HOSPITAL OF SUN YAT SEN UNIV

Flow-adjustable tympanic cavity administration capillary puncture microneedle

PendingCN120053188AEar treatmentMicroneedlesCapillary TubingTympanic cavity
The invention relates to the technical field of medical instruments, and discloses a flow-adjustable tympanic cavity administration capillary puncture microneedle which comprises an administration tube and a guide core. The dosing tube comprises a puncture part, an infusion part and a limiting part located at the far end of the infusion part, the puncture part partially extends into the infusion part and is communicated with an inner cavity of the infusion part through the connecting port, the puncture part is used for puncturing the tympanic membrane, and the limiting part is used for abutting against the outer surface of the tympanic membrane. The guiding core body is partially located in the inner cavity of the infusion part and is suitable for rotating around the center axis of the infusion part in the first direction to the end to gradually block the connecting opening or rotating in the second direction opposite to the first direction to the end to be gradually away from the connecting opening. Compared with a traditional puncture microneedle, the puncture microneedle provided by the invention can accurately adjust the administration flow and control the administration amount. Meanwhile, the device is simple in structure, low in material cost and suitable for large-scale production, popularization and application.
Owner:BEIJING ANZHEN HOSPITAL AFFILIATED TO CAPITAL MEDICAL UNIV

Ear canal cleaning device for ear-nose-throat department nursing

The invention relates to the technical field of auditory meatus nursing and cleaning devices, in particular to an auditory meatus cleaning device for ear-nose-throat department nursing. A limiting piston is arranged to transversely move towards one side under the pushing of cleaning liquid, so that when a liquid outlet sleeve moves towards one side on a fixing support, the liquid outlet sleeve can move towards the other side; when the cleaning liquid impacts turbine blades to rotate, the turbine blades drive a rotating base to rotate, and meanwhile, a cleaning spray head rotates to spray the cleaning liquid, so that the auditory meatus is rotationally scoured, and impurities in the auditory meatus are repeatedly impacted and crushed by the rotating cleaning liquid; a limiting piston is driven by cleaning liquid to transversely move, a liquid outlet sleeve is driven to push a flexible spring to move outwards, a top block enables a spherical air bag to be attached to a tympanic membrane to form protection, a temperature sensor generates data in real time according to the temperature of the auditory meatus, a control panel can control a heating rod to conduct heating, and the temperature of the cleaning liquid is consistent with the temperature of the auditory meatus.
Owner:DEHUA COUNTY HOSPITAL

An adaptive baseplate hearing ossicle prosthesis

The present application relates to the technical field of ossicle prosthesis. An adaptive base plate ossicle prosthesis comprises a base plate structure for connecting with a tympanic membrane and a stem, the base plate structure is fixedly connected with the stem, the base plate structure comprises a connecting part for connecting with the stem and at least six adaptive adjusting branches; all the adaptive adjusting branches are distributed at equal interval angles in a circumferential direction, and the inner sides of all the adaptive adjusting branches are fixedly connected with the outer side of the connecting part; gaps exist between all the adaptive adjusting branches. The present application is convenient for meeting the structure of the tympanic membrane and improving the fitting stability with the tympanic membrane through the adaptive adjusting branches. The independent adaptive adjusting branches will deform according to different regions of the tympanic membrane, so as to adapt to the structure of the tympanic membrane.
Owner:SHANGHAI MISTAR MEDICAL TECH CO LTD

System for treating ear disorders

PCT designated stageWO2025188524A1Ear treatmentOtoscopesEardrum repairCholesteatoma
Systems and methods can be employed for trans-tympanic membrane access to the middle ear for delivery of a formulation to a targeted site under direct visualization. The systems and methods can also be used to improve accessibility and visualization for various otological surgical procedures, such as, but not limited to, cholesteatoma removal, tympanic membrane repair and ossicular chain repair.
Owner:SPIRAL THERAPEUTICS INC

Combined tympanic membrane breather pipe structure

ActiveCN223350440UEar treatmentTympanic ventilation tubeTympanic Membranes
The utility model discloses a combined tympanic membrane breather pipe structure which comprises a breather mounting pipe and a breather core pipe, the breather mounting pipe is arranged at a tympanic membrane opening, and the breather core pipe is assembled on the inner side of one end of the breather mounting pipe and connected with the breather mounting pipe in an inserted mode. The ventilation installation pipe comprises an installation sleeve and an anti-falling limiting ring, the installation sleeve is arranged at the position of an opening of the tympanic membrane, the anti-falling limiting ring is arranged at one end of the installation sleeve, and the anti-falling limiting ring and the installation sleeve are integrally formed. The ventilation installation pipe and the ventilation core pipe jointly form a split type ventilation pipe structure, the ventilation pipe can be placed conveniently, a clamping type fixing structure is formed after the ventilation pipe is assembled so that the ventilation pipe can be clamped on the tympanic membrane, the fixing effect is good, the falling-off phenomenon cannot occur after the ventilation pipe is placed, the operation effect is guaranteed, and if a certain part of the ventilation pipe is damaged, the ventilation pipe can be placed on the tympanic membrane. And corresponding parts can be replaced to prevent the whole breather pipe from being scrapped, so that the economic benefit is high.
Owner:TANCHENG JINGTAN TECH CO LTD

Tympanic membrane structure for connecting rod fan

The utility model discloses a tympanic membrane structure for a connecting rod fan, which comprises a tympanic membrane, a circular seal is arranged at the center of the tympanic membrane, and a horizontal limiting structure is arranged at the edge of the circular seal; a sealing pressing plate is assembled on the circular seal, a circular sealing groove is formed in the sealing pressing plate, the circular sealing groove is matched with the circular seal in the center of the tympanic membrane, and a limiting hole for containing the horizontal limiting structure is formed in the circular sealing groove. Through the arrangement of the horizontal limiting structure and the limiting hole which are matched with each other, mutual limiting between the tympanic membrane and the sealing pressing plate is completed, and the situation of air leakage caused by a torsion gap generated between the tympanic membrane and the sealing pressing plate in the working process is prevented.
Owner:B TOHIN MACHINE (JIANGSU) CO LTD

Tympanic membrane ventilation pipe system

The invention relates to the technical field of medical equipment, in particular to a tympanic membrane ventilation pipe system composed of a tympanic membrane ventilation pipe and a tympanic membrane ventilation pipe wrapping layer. The device is suitable for tympanic membrane catheterization. The tympanic membrane ventilation pipe comprises an inner claw, a pipe body and an outer claw, the pipe body is a hollow pipe, the two ends of the pipe body are fixedly connected with one end of the inner claw and one end of the outer claw respectively, and the other ends of the inner claw and the outer claw are free ends; the free end is made of memory alloy, is in a straightened state at the temperature of 0 DEG C and is in a bent state at the temperature of 20-40 DEG C. The structure is newly innovated, and an existing traditional indwelling catheter structure is changed. And the free ends of the inner claw and the outer claw are bent in a normal-temperature state through the memory alloy. The bending state of the inner claw and the outer claw achieves multi-point and internal and external bidirectional fixation, the bending state of the inner claw and the outer claw increases the supporting area and the supporting firmness, multi-point firm fixation of the eardrum in the ear is ensured, internal and external bidirectional fixation is achieved through bidirectional fixation of the inner claw and the outer claw, and the risk that the eardrum falls out of the auditory meatus and falls into the tympanic chamber is thoroughly solved.
Owner:LANZHOU SEEMINE SMA CO LTD

Piston pump with mushroom valve and oral irrigator

The utility model discloses a piston pump with a mushroom valve and an oral irrigator, and relates to the technical field of oral irrigators, and the piston pump comprises a pump shell, a water storage cavity and a water outlet cavity are formed in the pump shell, and the water storage cavity is communicated with the water outlet cavity through a water outlet; the water inlet pipe is communicated with the water storage cavity through a water inlet; the first mushroom valve comprises a first mushroom valve body for closing or opening the water inlet and a first rod body; the second mushroom valve comprises a second mushroom valve body for closing or opening the water outlet and a second rod body; a tympanic membrane; and the driving mechanism is used for driving the tympanic membrane to deform, so that the first mushroom valve opens the water inlet and the second mushroom valve closes the water outlet, or the first mushroom valve closes the water inlet and the second mushroom valve opens the water inlet. By the adoption of the technical scheme, the water inlet and the water outlet are opened or closed through the first mushroom valve and the second mushroom valve respectively, the overall structure is stable, maintenance is easy, interference cannot be caused during water inlet and water outlet, and the water outlet efficiency and the water outlet stability are improved.
Owner:深圳市乔颖塑胶电子有限公司

Tympanic membrane stent preparation method and equipment

The invention relates to the field of medical instruments, in particular to a tympanic membrane stent preparation method and equipment. The tympanic membrane stent preparation equipment comprises an inner block, the inner block is cylindrical, the upper portion of the inner block is conical, outer sleeves are arranged on the two sides of the inner block, the upper portions of the outer sleeves are conical, the two outer sleeves form a complete sleeve, and a mold groove is formed between the sleeve and the inner block. The preparation method of the tympanic membrane stent comprises the following steps that S1, the inner block is connected to the flat plate, and the four round rods are inserted into the four vertical grooves correspondingly; s2, the two outer sleeves are connected to the flat plate, and a die groove is formed between the inner blocks of the two outer sleeves; s3, a square column transversely penetrates through the upper portions of the inner block and the two outer sleeves; s4, silica gel is poured into the mold cavity, and the tympanic membrane support is formed after the silica gel is solidified. The tympanic membrane drainage tube can accurately penetrate through the tympanic membrane and effectively support the tympanic membrane, and tympanic chamber effusion drainage is facilitated.
Owner:NINGBO MEDICAL CENT LIHUILI HOSPITACL