9 results about "Ossicular chain" patented technology

The application discloses a weak sound amplification device in the field of sound amplification technology, which comprises a base, a controller, a sealed shell and a carrier table; the controller is electrically connected with a signal component, a sound component and a power amplifier, and the power amplifier is electrically connected with a loudspeaker; the sound component comprises a bionic sound channel, the bionic sound channel is fixed with a tympanic membrane at the tail end, the tympanic membrane is attached to the left end of an auditory ossicular chain, and the auditory ossicular chain is hung on an auditory ossicular chain beam; the signal component comprises a manual workbench, a precision workbench and a piezoelectric stack support, the piezoelectric stack support is internally provided with a piezoelectric stack, the front end surface of the piezoelectric stack support is fixedly connected with the rear end of a probe support, and the front end of the probe support is provided with a conductive probe; the auditory ossicular chain and the auditory ossicular chain beam are made of conductive material and are electrically connected; the manual workbench, the precision workbench and the piezoelectric stack are used for adjusting the distance between the front end of the conductive probe and the right end of the auditory ossicular chain in three stages, so that the two are connected with the controller in series to form a closed quantum tunneling circuit. The application solves the problem of difficult weak sound collection.

The invention discloses a temporal bone U-HRCT image ear multi-class standard plane automatic positioning method, and relates to the field of medical image processing, and the method comprises the steps: obtaining temporal bone U-HRCT image data, and carrying out the preprocessing of the image data, and obtaining an enhanced ossicular chain region of interest; defining the enhanced ossicular chain region of interest as an environment of a reinforcement learning framework, and obtaining respective states from the environment by the intelligent agents through respective plane parameters; calculating an average normal vector and an average intercept of each standard observation surface based on the training set label data, and taking the average normal vector and the average intercept as initial plane parameters of the intelligent agent; a multi-agent strategy network is adopted, a differentiated action space is customized for each standard observation surface, and plane positioning is guided through a dual reward function; evaluating a plane positioning result in real time by using a termination discrimination network, and determining whether to terminate the search process of the multi-agent strategy network according to the evaluation result; therefore, end-to-end automatic positioning of the standard observation surface of the ossicular chain is realized, and the positioning efficiency is improved.

Systems and methods can be employed to access the middle ear through the tympanic membrane for the delivery of therapeutic agents to, for example, the round window niche adjacent to the cochlea under direct visualization. The systems and methods can also be used to improve accessibility and visualization for various otologic procedures, such as, but not limited to, cholesteatoma removal, tympanic membrane repair, and ossicular chain repair.

The utility model relates to the technical field of medical instruments, and provides an artificial stapes bone which comprises a connecting column used for being inserted into an inner ear vestibule pool of a patient and provided with a limiting piece used for limiting the insertion depth of the connecting column, and a fixing rod which comprises a hook and a connecting part which are sequentially connected, the connecting part is connected with the connecting column, the fixing rod is a moldable rod, and the hook is connected with the connecting part. The hook is used for connecting an ossicular chain of a patient. A doctor can be helped to judge the insertion depth of the connecting column through the limiting piece, sensorineural deafness or poor operation effect caused by the fact that the connecting column is inserted too deep or too shallow is avoided, meanwhile, the doctor is helped to better adjust the length and the angle of the artificial stapes through the moldable fixing rod, and operation is more convenient. The artificial stapes can better adapt to the middle ear environment of a patient, the hook can be hung on the long foot of the incus and can also be hung on a bone hammering handle or a bone hammering neck, the problem of hearing loss of the stapes sclerosis patient caused by tympanic sclerosis is solved, and the audience range of the artificial stapes is expanded.

The embodiment of the invention provides an ossicular chain size measurement method and device, a storage medium and a program product, and the method comprises the steps: obtaining a target mask image in response to a measurement request, and extracting mask images corresponding to three small bones from the target mask image; the three small bones comprise a hammer bone, an incus and a stapes bone; voxels of corresponding small bones are extracted from the mask image, and point cloud data of the small bones are constructed based on voxel coordinates; for any small bone, determining at least one key axis corresponding to the small bone based on the small bone point cloud data, and determining a plurality of key points corresponding to the small bone based on the at least one key axis; and based on the plurality of key points corresponding to the three small bones respectively, determining at least one piece of size data corresponding to the three small bones respectively and a position relationship corresponding to any two small bones. According to the technical scheme provided by the embodiment of the invention, the accuracy and efficiency of the size measurement of the ossicular chain are improved.

Systems and methods can be employed to facilitate access and surgery in the external, middle, and inner ear for the diagnosis or treatment of ear conditions including, but not limited to, hearing loss and excess earwax. In some examples, the systems and methods include instruments and techniques that facilitate trans-tympanic or trans-fibroannular access to the middle ear. The systems and methods can also be used to improve the accessibility of various otologic procedures, such as, but not limited to, cholesteatoma removal, tympanic membrane repair, and ossicular chain repair.

An improved TORP for the reconstruction of the ossicular chain provides, in combination: a head (C) which is formed by a single cartilaginous block:—a synthetic stem (A) of cylindrical shape which is provided, on both sides, with a respective blunt tip (A1, A2); a cartilaginous base (B) having the same thickness as the head (C) but with a smaller surface.Said improved TORP is configured in such a way as to be able to position, respectively, said head (c) under the tympanic membrane (D) and said base (B) above the plate (E) of the stapes (s); thus obtaining that during the healing process, the perichondrium of the head (c) is welded to the tympanic membrane (D) and the perichondrium of the base (B) is welded to the mucosa of the plate (E).

Systems and methods can be employed for trans-tympanic membrane access to the middle ear for delivery of a therapeutic agent, for example, to the round window niche adjacent to the cochlea 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.

An ossicular prosthesis having a first fastening element designed as a head plate for contact with the tympanic membrane, a second fastening element for mechanical connection to a member of the ossicular chain or the inner ear, and a shaft-shaped connecting element connecting the two fastening elements in a manner conducting sound. The first fastening element has a through-bore for receiving the connecting element and can be narrowed to provide fixation. The connecting element protrudes through the through-bore onto and carries a third fastening element designed for connection to a member of the ossicular chain or the inner ear. The connecting element can be easily separated above or below the first fastening element. This arrangement offers middle ear surgeons a simple and quick option to choose from a range of different prosthesis types immediately before inserting a selected prosthesis into the patient's middle ear.