45 results about "Auditory ossicle" patented technology

An implantable microphone for use in hearing systems includes a housing having a sidewall, a first membrane coupled to a top portion of the housing and configured to move in response to movement from an auditory ossicle, and a second membrane coupled to the sidewall such that an interior volume of the housing is divided into a first volume and a second volume. The second membrane has an opening that permits fluid to flow from the first volume to the second volume. The implantable microphone also includes a vibration sensor adjacent to the second membrane and configured to measure the movement of the second membrane and to convert the measurement into an electrical signal. The vibration sensor may include a piezoelectric sensor and / or a MEMS sensor.

An auditory ossicle prosthesis (10) which comprises, at one end, a plate-shaped first securing element (11) for bearing on the tympanic membrane or on the footplate of the stirrup, and, at its other end, a second securing element (12) for mechanical connection to the ossicular chain or to the inner ear, and also a connection element (13) that connects the two securing elements so as to conduct sound, wherein the first securing element has a radially inner coupling area (14) for coupling the first securing element to the connection element, and also a plurality of web elements (15, 15′, 15″) for radial connection of the coupling area to radially outer portions (16, 16′) of the first securing element, is characterized in that the coupling area and / or the web elements and / or the radially outer portions are of such a geometric configuration that they together form pieces of a jigsaw from which the first securing element can be assembled in its entirety, wherein the individual jigsaw pieces can be joined to one another or removed from one another, and wherein the first securing element is inherently mechanically stable in the state with the jigsaw pieces joined together. This means that the number of different prostheses to be kept ready during an operation can be reduced to a single standard prosthesis, without losing the possibility of optimal adaptation of the prosthesis to the specific case of use.

An auditory ossicle prosthesis (10) which comprises, at one end, a plate-shaped first securing element (11) for bearing on the tympanic membrane or on the footplate of the stirrup, and, at the other end, a second securing element (12) for mechanical connection to the ossicular chain or to the inner ear, and also a connection element (13) that connects the two securing elements so as to conduct sound, wherein the first securing element has a radially inner coupling area (14) for coupling the first securing element to the connection element, and also a plurality of web elements (15) for radial connection of the coupling area to radially outer portions (16) of the first securing element, is characterized in that the coupling area, the web elements and the radially outer portions are of such a geometric configuration, and their material so chosen, that a plastic deformation is effected by stretching or pushing together in the plane of the plate of the first securing element, by means of which plastic deformation the external diameter of the first securing element is permanently increased or reduced. This means that the number of different prostheses to be kept ready during an operation can be reduced to a single standard prosthesis, without losing the possibility of optimal adaptation of the prosthesis to the specific case of use.

An auditory ossicle prosthesis (10) which comprises, at one end, a plate-shaped first securing element (11) for bearing on the tympanic membrane or on the footplate of the stirrup, and, at its other end, a second securing element (12) for mechanical connection to the ossicular chain or to the inner ear, and also a connection element (13) that connects the two securing elements so as to conduct sound, wherein the first securing element has a radially inner coupling area (14) for coupling the first securing element to the connection element, and also a plurality of web elements (15, 15′, 15″) for radial connection of the coupling area to radially outer portions (16, 16′, 16″) of the first securing element, is characterized in that the web elements are of such a geometric configuration, and their material so chosen, that the web elements can be easily broken off and the radially outer portions appended to them detached from the first securing element, such that the external diameter of the first securing element is reduced in this area. This means that the number of different prostheses to be kept ready during an operation can be reduced to a single standard prosthesis, without losing the possibility of optimal adaptation of the prosthesis to the specific case of use.

An auditory ossicle prosthesis, which at one end has a first securing element for mechanical connection to a member of the ossicular chain, which securing element is designed in the form of a loop that encloses the member, is partially open to the outside via a slit-like aperture and engages with a force fit around the member, the slit-like aperture being considerably smaller than the diameter of the member engaged by the loop, wherein, after attachment, the loop bears with a force fit on the engaged member via at least three areas, and that, in the circumferential direction around the engaged member, at least three areas of the loop do not touch the engaged member but instead each extend at a distance from the surface of the latter.

An auditory ossicle prosthesis (10) with a sound transmitting prosthesis body (13) has first and second coupling elements (11, 12) provided at opposite ends. A stabilizer element (14) fixes the prosthesis on a level with the plane of the tympanic membrane and stabilizes the position of the prosthesis in the middle ear. A fixation part (14.2) anchors the Y-shaped stabilizer element at one or more places of the ear canal wall. The fixation part includes two hooked anchoring elements (16) that secure the fixation part in artificially drilled holes in the ear canal wall. The auditory ossicle prosthesis has a particularly simple and compact design and stays spatially fixed within very small variations in its initial position after implantation inside the middle ear cavity, providing effective protection against post-operative dislocation, tilting or tipping and without deteriorating sound transmission properties of the prosthesis.

The invention relates to a method for preparing a tympanic membrane model and a tympanic membrane carving model, comprising the following steps: (1) establishing a three-dimensional model of the auditory ossicles; (2) establishing a three-dimensional model of the ear canal; (3) drawing the boundary of the position of the tympanic membrane; ( 4) Obtain the shape of the tympanic membrane; (5) Obtain the reference mold for engraving the tympanic membrane; (6) 3D print the shape. Based on the 3D printing technology, the present invention accurately produces individualized three-dimensional solid models of the reconstructed tympanic membrane and tympanic membrane engraving reference models, which can accurately reflect the three-dimensional shape and size of the patient's tympanic membrane, and can be observed from multiple angles to determine whether the malleus handle is transplanted. The embedding position on the object can be applied to the repair of large perforation of the tympanic membrane under the ear endoscope, which can provide a meaningful reference template for customizing the tragus cartilage-perichondrium graft, and effectively realize the tragus-perichondrium graft during ear endoscopic surgery. Simulation of custom grafts to provide accurate models for intraoperative graft design.

The invention discloses an artificial auditory ossicle for treating a mixed hearing damage. The artificial auditory ossicle comprises a top tray, a connection bar, a piezoelectric device and a stapes clamp, wherein the top tray is fixed on an eardrum in an operation implantation manner; one end of the connection bar is connected with the top tray; the other end of the connection bar is connected with the base end of the piezoelectric device; the piezoelectric device mainly comprises piezoelectric stacks; the action end of the piezoelectric device is connected with the base end of the stapes clamp; and the action end of the stapes clamp directly acts on stapes. The artificial auditory ossicle not only can be used for replacing a damaged auditory ossicle like a traditional artificial auditory ossicle so as to treat a conductive hearing loss, but also has an active shock excitation ability so as to compensate an accompanied sensorineural hearing loss. In addition, the active auditory ossicle can work under the environment of high-intensity magnetic field and has the advantages of low energy consumption and good high-frequency gain. The artificial auditory ossicle also has the advantages of simple structure, high ireliability, low manufacturing cost and low price, thereby being convenient for widely popularization.