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40 results about "Tympanic cavity" patented technology
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The tympanic cavity is a small cavity surrounding the bones of the middle ear. Within it sit the ossicles, three small bones that transmit vibrations used in the detection of sound.
Combined otic aspirator and medication dispenser
A device for making an incision in the tympanic membrane, withdrawing fluid from the tympanic cavity and administering a medicament to the space behind the tympanic membrane is provided. The device has a barrel-shaped casing (1) having a rotatable end turret (38). A first trigger (2) allows a shaft (18) to pierce the tympanic membrane and a tubular vacuum cartridge (32). The cartridge allows aspiration of fluid. A second trigger (4) causes medicament (34) to be released into the space behind the tympanic membrane.
Owner:AURIS MEDICAL LLC
Implantable transducer with transverse force application
InactiveUS20070083078A1Raise transfer toAchieve improvementImplantable hearing aidsTransverse forceTransducer
An implantable hearing aid transducer is provided that allows providing movement for stimulation purposes in at least first and second directions. This allows for moving an auditory component in a direction that may be substantially aligned with a natural direction of movement for the auditory component. In one arrangement, a middle ear transducer having an elongated vibratory member that extends into a patient's tympanic cavity is operative to move a tip of the vibratory member in at least first and second directions. A first direction may be along a long axis of the vibratory member while a second direction may be in a direction that is at least partially transverse to the long axis of the vibratory member. Further, the transducer may be positionable to provide alignment of the vibratory member such that the transverse direction of movement is substantially aligned with a direction of natural movement of a middle ear component (e.g. ossicles bone) to be stimulated.
Owner:COCHLEAR LIMITED
Spanning connector for implantable hearing instrument
ActiveUS20090124849A1Closely alignedEffectively transmit vibratory signalDiagnosticsSurgeryHearing transducerTympanic cavity
Provided herein are various connectors that allow for translating the axial movement of an implantable hearing transducer 108 from a first direction to a second direction. In various arrangements, these connectors form a spanning connector 200 that extend across a portion of a tympanic cavity of a patient. One end 202 of the connector 200 may be affixed to the tympanic cavity, and a second end 204 may engage an auditory component. In such an arrangement, a vibratory actuator 112 may engage the connector 200 between the first and second ends 22, 204. Such an arrangement may provide improved alignment of actuator movement with a direction of movement of an auditory component.
Owner:COCHLEAR LIMITED
Device and method for delivering medicine into the tympanic cavity,with sliding assist
ActiveUS20130023818A1Novel and safeEar treatmentAutomatic syringesTympanic cavityBiomedical engineering
A device for substance delivery to and / or extraction from the tympanic cavity, comprising: a stationary body having a distal surface, a proximal surface; a movable body having a distal surface and a proximal surface, disposed within the stationary body and free to move relative to the stationary body; at least one piercing element having a distal end and a proximal end, disposed in the movable body; and a means for moving the movable body relative to the stationary body.
Owner:ENTRATYMPANIC
Probe for Diagnosing Otitis Media Using Terahertz Waves and Otitis Media Diagnosis System and Method
ActiveUS20140249426A1Accurate diagnosisHigh light transmittanceOtoscopesDiagnostic recording/measuringMedicineTransmittance
The present invention relates to a otitis media diagnosis system using terahertz electromagnetic waves, which can diagnose otitis media using terahertz electromagnetic waves in a non-invasive manner, and which can accurately diagnose otitis media by acquiring images on the tympanic cavity using terahertz electromagnetic waves with excellent transmittance, and which can quickly and accurately divide exudative otitis media and suppurative otitis media using terahertz electromagnetic waves that are sensitive to moisture, and which is safe to a body using terahertz electromagnetic waves. The otitis media diagnosis system includes a terahertz probe including a generating unit for radiating terahertz electromagnetic waves from the outside of an ear toward a tympanic cavity and a detection unit for detecting the reflected terahertz electromagnetic waves reflected from the tympanic cavity.
Owner:IND ACADEMIC CORP FOUND YONSEI UNIV
Device and method for delivering medicine into the tympanic cavity
A device for substance delivery to and / or extraction from the tympanic cavity, comprising: a housing, having a distal surface, a proximal surface that is opposite to the distal surface, and a circumscribed surface that connects the distal surface and the proximal surface; at least one piercing element having at least one proximal piercing end and at least one distal piercing end, disposed within the housing in such manner that the at least one distal piercing end is / are generally facing the distal surface of the housing; and a means for flexing the tympanic membrane toward the distal end of the at least one piercing element.
Owner:ENTRATYMPANIC
Drum membrane type optical fiber splicer capable of being repeatedly opened to be used
ActiveCN102590957AIncrease success rateImprove cleanlinessCoupling light guidesTympanic cavityPlastic optical fiber
The invention discloses a drum membrane type optical fiber splicer capable of being repeatedly opened to be used. The drum membrane type optical fiber splicer capable of being repeatedly opened to be used comprises an insertion core assembly, a box assembly, a shell assembly, a spring and an opening cover; the insertion core assembly and the box assembly are packaged in the shell assembly; the spring is arranged between the box assembly and the shell assembly; the box assembly comprises a box, a box cover, a guide wire block and a guide wire body; the box comprises a box body which is provided with a drum membrane cavity; two ends of the drum membrane cavity are communicated with the insertion core and guide blocks respectively; the side of the drum membrane cavity is provided with a drum membrane which is pressed to reduce the cross-sectional area of the drum membrane cavity; the periphery of the drum membrane is connected with the box body through a floating rib; a V-shaped groove is formed in the drum membrane cavity; and the box cover acts on the drum membrane through a locking membrane. The fixing action force which is applied by the optical fiber splicer to spliced optical fibers is distributed in a balanced way, and the twisting misplacement of the spliced optical fibers can be avoided; and moreover, a structure of sealing splicing points is adopted, so the splicing points are clean, and the erosion and interference of pollution can be avoided.
Owner:NANJING XIUDEA COMM TECH CO LTD
Combined otic and medication dispenser and method for treating otic infections
A method of treating a mammal presenting with an otic infection attributable to a pathogenic bacteria is accomplished by passing a hollow shaft having a first and second end through the tympanum of the mammal. The first end is sufficient to pierce the tympanic membrane, but flexible enough such that it buckles under the force necessary to damage any surrounding tissues in the tympanic cavity. The first end of the hollow shaft, after it pierces the tympanic membrane, extends into the tympanic cavity to aspirate a volume of effluence contained therein. The aspirated effluence is expelled out the second end of the hollow shaft. A volume of medicament (less than the volume of effluence withdrawn) is then injected through the same hollow shaft and into the tympanic cavity to treat the infection.
Owner:REED DON C +1
Implantable transducer with transverse force application
InactiveUS7753838B2Raise transfer toAchieve improvementImplantable hearing aidsTransverse forceLong axis
An implantable hearing aid transducer is provided that allows providing movement for stimulation purposes in at least first and second directions. This allows for moving an auditory component in a direction that may be substantially aligned with a natural direction of movement for the auditory component. In one arrangement, a middle ear transducer having an elongated vibratory member that extends into a patient's tympanic cavity is operative to move a tip of the vibratory member in at least first and second directions. A first direction may be along a long axis of the vibratory member while a second direction may be in a direction that is at least partially transverse to the long axis of the vibratory member. Further, the transducer may be positionable to provide alignment of the vibratory member such that the transverse direction of movement is substantially aligned with a direction of natural movement of a middle ear component (e.g. ossicles bone) to be stimulated.
Owner:COCHLEAR LIMITED
Tympanic membrane puncture needle with sight glass
The invention relates to a tympanic membrane puncture needle with a sight glass. The tympanic membrane puncture needle comprises the auditory meatus sight glass (9), an otoscope (10) and a puncture needle body (11), and is characterized in that the puncture needle body (11) and the otoscope (10) are integrally fixed, an 85-degree angle is formed between a needle body front part (2) of the puncture needle body (11) and an otoscope front end (6), and a needle point (1) of the puncture needle body (11) is located on a straight line of the view center of the otoscope (10); the needle point (1) is 2 mm long, and an obstruction ring (4) is arranged at the tail of the needle point (1); the distance from the needle point (1) to the otoscope front end (6) is 28 mm, the diameter of the otoscope front end (6) is 5 mm, the diameter of an otoscope tail end (8) is 15 mm, and an included angle (12) between a needle body tail (3) of the puncture needle body (11) and an otoscope body part (7) is 120 degrees. The tympanic membrane puncture needle with the sight glass has the advantages that high illumination is provided, the view is clear, the tympanic membrane puncture needle is easy to fix, the insertion depth of the tympanic membrane puncture needle is proper, change conditions of the fluid level in the tympanic cavity are dynamically observed, fluid extraction and drug injection are completed through conventional puncture at one time, the pain of patients is relieved, and complications are prevented.
Owner:济南市第四人民医院
Artificial auditory tube
InactiveUS20070112290A1Restoring and drainage functionEar treatmentIntravenous devicesExternal Auditory CanalsDistal portion
Disclosed is an artificial auditory tube that is a therapeutic instrument useful for the treatment of eustachian tube dysfunction including stenosis of the eustachian tube (occlusion of the eustachian tube), patulous eustachian tube, closure defect of the eustachian tube, and “floppy tube”. The artificial auditory tube consists of a tubular body having a proximal end to be placed protruding out of the tympanic membrane within the external auditory canal and having a distal end to be inserted from the tympanic cavity into the eustachian tube and placed through the isthmus and facing the inside of the cartilaginous eustachian tube, the distal end and the proximal end communicating with each other through an internal cavity extending in the axial direction of the tubular body, the internal cavity opening to the outside through a first opening located in the distal end portion, and the external diameter falling in the range of from 0.35 to 3.0 mm, wherein the artificial auditory tube includes a second opening defined in the wall of the tubular body and positioned in the region ranging from 9 to 30 mm away from the distal end and communicating with the internal cavity of the tubular body.
Owner:MORITA MASAHIRO
Simulation method for air pressure fluctuation and human ear comfort
The invention relates to a simulation method for air pressure fluctuation and human ear comfort. The simulation method mainly comprises the steps of: A, establishing a transfer function module of a human ear system through a ''gas-solid'' coupling module by taking air pressure out of the tympanic cavity as an input and air pressure inside the tympanic cavity and eardrum displacement as an output; B, inputting the air pressure Pi(s) out of the tympanic cavity which is a standard air pressure signal determined according to air pressure comfort standard in a high speed train into the transfer function module to obtain a corresponding standard eardrum displacement; and C, inputting the air pressure Pi(s) out of the tympanic cavity which is an air pressure signal in the train into the transfer function module to obtain a corresponding eardrum displacement; further obtaining a corresponding relationship curve of air pressure-eardrum displacement; and further obtaining the relationship between the human ear comfort and the eardrum displacement. The simulative analyzing result removes the individual difference of the human body, and a quantization standard of the human ear comfort degree can be put forward according to the human eardrum displacement so as to provide a more convenient, rapid, and objective ground for design and operating maintenance associated with the motor car of the high speed railway and the human ear comfort.
Owner:SOUTHWEST JIAOTONG UNIV
Tympanic cavity-eustachian tube drainage device
The invention provides a tympanic cavity-eustachian tube drainage device which comprises a support sheet and a drainage strip, wherein the support sheet is connected with one end of the drainage strip; drainage slots are formed in the surfaces of the support sheet and the drainage strip and include first drainage slots and a second drainage slot; the first drainage slots are formed in the supportsheet and extend to one end of the drainage strip from the periphery of the support sheet; the second drainage slot is formed in the drainage strip and extends to the other end of the drainage strip from one end of the drainage strip; and the first drainage slots are in butt connection with the second drainage slot. The support sheet can cover a mucosa of a tympanic cavity; at the same time, the drainage strip can be inserted into an eustachian tube; the first drainage slots drain secretions to the drainage strip from the tympanic cavity; the second drainage slot drain the secretions drained by the first drainage slots to the outside of the tympanic cavity; and the tympanic cavity-eustachian tube drainage device can avoid adhesion of the tympanic cavity and an ostium of the eustachian tube, drain the secretions in the tympanic cavity, improve a ventilation function of the eustachian tube and a middle ear, help reconstruct a pneumatic space of the tympanic cavity and increase hearing reconstruction probability.
Owner:北京郅精医疗技术有限公司
Earplug type tympanic administration device
Owner:NANJING UNIVERSITY OF TRADITIONAL CHINESE MEDICINE +1
Auripuncture, tympanic cavity internal injection and myringotomy fixing and pushing system
InactiveCN105662705AStable positional relationshipGood treatment effectEar treatmentDiseaseTreatment effect
The invention discloses an auripuncture, tympanic cavity internal injection and myringotomy fixing and pushing system, and relates to the field of medical instruments, and aims at solving the problem existing in the prior art that when doctors treat middle ear and related diseases of patients, the hand-held medical tool is not stable enough, and the treatment effect is low. The technical scheme is that the auripuncture, tympanic cavity internal injection and myringotomy fixing and pushing system comprises a support member, a wearing part, a clamping part and a pushing mechanism. The wearing part is connected with the support member, and is used for a patient to wear, and maintains the stable position relationship between the auricle of the patient and the support member; the clamping part is used for clamping an external medical tool; and the pushing mechanism is arranged on the support member, and is connected with the clamping part, and is used for driving the clamping part to move linearly relative to the support member. The fixing and pushing system is suitable for treatment modes such as auripuncture, tympanic cavity internal injection and myringotomy.
Owner:王宁聪 +1
Chinese medicament for treating chronic catarrhal otitis media and preparation method
The invention provides a Chinese medicament for treating chronic catarrhal otitis media. The Chinese medicament comprises coptis, fenugreek, Chinese starjasmine stem, akebia fruit, holly bark, Tuckahoe, dandelion, mistletoe, corydalis decumbentis, licorice, codonopsis pilosula, gardenia, Chinese yam, reed rhizome, sappan wood, smartweed, wild chrysanthemum, monkshood and dendrobe. The novel Chinese medicament for treating the chronic catarrhal otitis media can effectively prevent the disease from being changed into adhesive otitis media, is convenient to take, and can avoid side effects and sequela due to long-term use of antibiotics and hormones, tympanic cavity tubing and the like.
Owner:QINGDAO MUNICIPAL HOSPITAL
Device and method for delivering medicine into the tympanic cavity,with sliding assist
Owner:ENTRATYMPANIC
Systems, apparatus, and methods for delivery of therapeutic substance to the middle and/or inner ear
Systems (300), apparatus, and methods are described for delivering a therapeutic substance to an ear of a subject, including a reservoir (300) configured to contain the therapeutic substance and an outlet (320) configured to transport the therapeutic substance from the reservoir to a lumen of a tympanostomy tube disposed within a tympanic membrane bordering the tympanic cavity and / or the tympaniccavity via the lumen of the tympanostomy tube, such that the therapeutic substance can be delivered to the tympanic cavity and / or a round window to an inner ear bordering the tympanic cavity.
Owner:TUSKER MEDICAL
Tympanum puncture positioning device
InactiveCN105030309AAvoid discomfortPrecise and safe puncture positionSurgical needlesTrocarExternal Auditory CanalsNeedle penetration
The invention provides a tympanum puncture positioning device which comprises a guide hole, wherein more than one fixation bars radiated outwards are disposed with the guide hole as the center, and the fixation bars are disposed at a mutual interval. According to a human ear structure, the tympanum puncture positioning device provided by the invention is adaptively designed into an elliptic structure, and the whole positioning device is placed in a patient's ear by adopting a transparent silica gel material, so that discomfort of the patient is avoided, and a doctor can send a puncture needle and the positioning device into an external auditory canal under direct observation. According to a tympanic membrane quadrant, the guide hole is adaptively disposed on the lower half part of the center shaft of the positioning device, the guide hole can be aligned to a front lower quadrant of a tympanic membrane in the whole course through application of the fixation bars, and the puncture needle will not be penetrated too deeply into a tympanic cavity.
Owner:梁永辉
Combined otic aspirator and medication dispenser
A device for making an incision in the tympanic membrane, withdrawing fluid from the tympanic cavity and administering a medicament to the space behind the tympanic membrane is provided. The device has a barrel-shaped casing (1) having a rotatable end turret (38). A first trigger (2) allows a shaft (18) to pierce the tympanic membrane and a tubular vacuum cartridge (32). The cartridge allows aspiration of fluid. A second trigger (4) causes medicament (34) to be released into the space behind the tympanic membrane.
Owner:AURIS MEDICAL LLC
Probe for diagnosing otitis media using terahertz waves and otitis media diagnosis system and method
ActiveUS9392934B2Accurate diagnosisHigh light transmittanceOtoscopesDiagnostic recording/measuringMedicineTransmittance
The present invention relates to a otitis media diagnosis system using terahertz electromagnetic waves, which can diagnose otitis media using terahertz electromagnetic waves in a non-invasive manner, and which can accurately diagnose otitis media by acquiring images on the tympanic cavity using terahertz electromagnetic waves with excellent transmittance, and which can quickly and accurately divide exudative otitis media and suppurative otitis media using terahertz electromagnetic waves that are sensitive to moisture, and which is safe to a body using terahertz electromagnetic waves. The otitis media diagnosis system includes a terahertz probe including a generating unit for radiating terahertz electromagnetic waves from the outside of an ear toward a tympanic cavity and a detection unit for detecting the reflected terahertz electromagnetic waves reflected from the tympanic cavity.
Owner:IND ACADEMIC COOP FOUND YONSEI UNIV
Tympanic-membrane type repeatedly openable optical fiber cold connector
ActiveCN102608716AIncrease success rateImprove cleanlinessCoupling light guidesWorking environmentEngineering
The invention discloses a tympanic-membrane type repeatedly openable optical fiber cold connector which comprises a V-shaped block, a box cover, an opening cover, a box, wire blocks arranged at the two ends of the box, a tail handle and an ejector sleeve, wherein the box comprises a box body; a tympanic membrane cavity is arranged on the box body; the two ends of the tympanic membrane cavity are communicated with the guide block respectively; the side surface of the tympanic membrane cavity is provided with a tympanic membrane compressed to reduce the sectional area of the tympanic membrane cavity; the periphery of the tympanic membrane is connected with the box body through a floating rib; the V-shaped block is arranged in the tympanic membrane cavity; and the box cover is arranged on the outer side of the tympanic membrane and acts on the tympanic membrane through a locking component. The optical cold connector disclosed by the invention realizes balanced distribution of fixing acting force on the connected optical fiber and stable and reliable fastening action, and prevents twisting dislocation of the connected optical fiber; and moreover, due to the adoption of the sealing structure at the connection point, the optical fiber cold connector can ensure the cleanness of the connection point and avoid troubles of pollution and corrosion no matter how severe the construction or working environment is for optical fiber connection.
Owner:NANJING XIUDEA COMM TECH CO LTD
Artificial tympanum
ActiveCN110538002APrevent fillingVibration does not attenuateEar implantsPhysical medicine and rehabilitationEustachian tube function
The invention provides an artificial tympanum. The artificial tympanum comprises a support body and an elastic body, the elastic body is capable of vibrating under the action of sound waves, the elastic body is used for supporting an artificial auditory ossicle, the support body is placed in the tympanum and supports and fixes the elastic body to corresponding position, the support body is fixedlyconnected with the elastic body, and the elastic body supports the artificial tympanum in a specific direction. The provided artificial tympanum can be applied to situations of auditory tube afunction and occupation of the tympanum by scar tissues, the artificial tympanum is implanted into a tympanum where an aerated cavity cannot be reconstructed, the entire tympanum is occupied, tympanum adhesion can be prevented by the support body, a tympanic cavity is occupied, and the scar is prevented from filling up the entire tympanum; and the tympanum composed of the support body and the elastic body replaces the original tympanum cavity, and the combination of the elastic body and the artificial ossicle is used for replacing the tympanum and a human ossicular chain to complete transmission of sound to an inner ear.
Owner:PEKING UNION MEDICAL COLLEGE HOSPITAL CHINESE ACAD OF MEDICAL SCI
Device and method for delivering medicine into the tympanic cavity
A device for substance delivery to and / or extraction from the tympanic cavity, comprising: a housing, having a distal surface, a proximal surface that is opposite to the distal surface, and a circumscribed surface that connects the distal surface and the proximal surface; at least one piercing element having at least one proximal piercing end and at least one distal piercing end, disposed within the housing in such manner that the at least one distal piercing end is / are generally facing the distal surface of the housing; and a means for flexing the tympanic membrane toward the distal end of the at least one piercing element.
Owner:ENTRATYMPANIC
speculum tympanocentesis needle
The invention relates to a tympanic membrane puncture needle with a sight glass. The tympanic membrane puncture needle comprises the auditory meatus sight glass (9), an otoscope (10) and a puncture needle body (11), and is characterized in that the puncture needle body (11) and the otoscope (10) are integrally fixed, an 85-degree angle is formed between a needle body front part (2) of the puncture needle body (11) and an otoscope front end (6), and a needle point (1) of the puncture needle body (11) is located on a straight line of the view center of the otoscope (10); the needle point (1) is 2 mm long, and an obstruction ring (4) is arranged at the tail of the needle point (1); the distance from the needle point (1) to the otoscope front end (6) is 28 mm, the diameter of the otoscope front end (6) is 5 mm, the diameter of an otoscope tail end (8) is 15 mm, and an included angle (12) between a needle body tail (3) of the puncture needle body (11) and an otoscope body part (7) is 120 degrees. The tympanic membrane puncture needle with the sight glass has the advantages that high illumination is provided, the view is clear, the tympanic membrane puncture needle is easy to fix, the insertion depth of the tympanic membrane puncture needle is proper, change conditions of the fluid level in the tympanic cavity are dynamically observed, fluid extraction and drug injection are completed through conventional puncture at one time, the pain of patients is relieved, and complications are prevented.
Owner:济南市第四人民医院
A test method for optimization of hearing reconstruction scheme using simulation mold
ActiveCN111920520BGood surgical planQuantitative standard is goodComputer-aided planning/modellingHearing test3d simulation
The invention discloses a test method for optimizing the hearing reconstruction scheme by using a simulation mold. The patient's ear is scanned by CT to obtain tissue structure information of the patient's ear and form CT data. The tissue structure information involved includes the auricle , cartilage and bone plate of the anterior wall of the ear canal, posterior wall of the mastoid process and bony plate of the canopy, medial wall of the tympanic cavity, posterior wall of the ear canal, tympanic membrane, ossicular chain, sinus tympani, mastoid air cells and upper tympanic cavity. The present invention obtains the CT data of the sick part of the patient, because the CT data can display the relevant lesion information in kind, and then combines the 3D printing technology to print out the 3D simulation model, and performs the operation "rehearsal" on the 3D simulation model, and then " The 3D simulation model after "surgery" is used for hearing test, and the optimal "surgery" case is obtained according to the audiometry test, and the doctor's follow-up actual operation is guided according to the optimal case, so that the operation has a good quantitative standard, to give The best surgical option for the patient.
Owner:CHONGQING MEDICAL UNIVERSITY
Spanning connector for implantable hearing instrument
ActiveUS10645502B2Effectively transmit vibratory signalSpread the wordDiagnosticsSurgeryHearing transducerEngineering
Provided herein are various connectors that allow for translating the axial movement of an implantable hearing transducer from a first direction to a second direction. In various arrangements, these connectors form a spanning connector that extend across a portion of a tympanic cavity of a patient. One end of the connector can be affixed to the tympanic cavity, and a second end may engage an auditory component. In such an arrangement, a vibratory actuator may engage the connector between the first and second ends. Such an arrangement can provide improved alignment of actuator movement with a direction of movement of an auditory component.
Owner:COCHLEAR LIMITED
Drug delivery device for tympanic cavity
InactiveCN113116633AEasy to operateImprove operational convenienceEar treatmentOperating tablesTympanic cavitySurgery
The invention discloses a drug delivery device for a tympanic cavity. The drug delivery device comprises a bottom plate, four universal wheels and a drug delivery mechanism; four supporting legs are arranged at the bottom part of the bottom plate; the four universal wheels are installed at the bottom part of the four supporting legs correspondingly; a mattress is arranged at the top part of the bottom plate; and a headrest is arranged at the position, close to the end part, of the mattress. The drug delivery device further comprises a lifting system; the lifting system is fixedly arranged at the end, close to the headrest, of the bottom plate; a transverse plate is movably connected with the top part of the lifting system; a connecting rod is fixedly arranged at the bottom part of the end, away from the lifting system, of the transverse plate; and the drug delivery mechanism is hinged to the bottom of the connecting rod. The height of the drug delivery mechanism and the angle between the drug delivery mechanism and the headrest can be adjusted through the lifting system, and the connecting rod is movably connected with the drug delivery mechanism, and thus the angle between the drug delivery mechanism and the connecting rod can also be adjusted, so that the drug delivery mechanism can be fixed at the position most suitable for drug delivery, and a doctor can conveniently conduct drug delivery operation; and a fixing belt is arranged at the headrest, so that the head of a patient can be fixed, thereby improving the drug delivery efficiency.
Owner:THE AFFILIATED HOSPITAL OF XUZHOU MEDICAL UNIV
artificial tympanum
ActiveCN110538002BPrevent fillingVibration does not attenuateEar implantsEustachian tube functionTympanic cavity
An artificial tympanum is provided, which includes a support body and an elastic body, the elastic body can vibrate under the action of sound waves, the elastic body is used to support the artificial ossicle, and the support body is used to be placed in the tympanic cavity and support The elastic body is fixed at a corresponding position, the supporting body is fixedly connected with the elastic body, and the elastic body supports the artificial ossicle in the specific direction. The artificial tympanic cavity provided by the present disclosure can be used for the loss of eustachian tube function and the tympanic cavity is occupied by scar tissue. The artificial tympanic cavity can be implanted into the tympanic cavity that cannot reconstruct the air-containing cavity, occupying the entire tympanic cavity, and the support body can prevent the tympanic cavity from sticking and occupying the tympanic cavity , to prevent the scar from filling the entire tympanic cavity. The artificial tympanic cavity is composed of the support body and the elastic body to replace the original tympanic cavity, and the combination of the elastic body and the artificial ossicle replaces the tympanic membrane and the human body's own ossicle chain to complete the transmission of sound to the inner ear.
Owner:PEKING UNION MEDICAL COLLEGE HOSPITAL CHINESE ACAD OF MEDICAL SCI
Simulation method for air pressure fluctuation and human ear comfort
The invention relates to a simulation method for air pressure fluctuation and human ear comfort. The simulation method mainly comprises the steps of: A, establishing a transfer function module of a human ear system through a ''gas-solid'' coupling module by taking air pressure out of the tympanic cavity as an input and air pressure inside the tympanic cavity and eardrum displacement as an output; B, inputting the air pressure Pi(s) out of the tympanic cavity which is a standard air pressure signal determined according to air pressure comfort standard in a high speed train into the transfer function module to obtain a corresponding standard eardrum displacement; and C, inputting the air pressure Pi(s) out of the tympanic cavity which is an air pressure signal in the train into the transfer function module to obtain a corresponding eardrum displacement; further obtaining a corresponding relationship curve of air pressure-eardrum displacement; and further obtaining the relationship between the human ear comfort and the eardrum displacement. The simulative analyzing result removes the individual difference of the human body, and a quantization standard of the human ear comfort degree can be put forward according to the human eardrum displacement so as to provide a more convenient, rapid, and objective ground for design and operating maintenance associated with the motor car of the high speed railway and the human ear comfort.
Owner:SOUTHWEST JIAOTONG UNIV
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