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Middle ear repeated drug delivery device and cochlear implant electrode

A technology of cochlear implants and implanted electrodes, applied in electrodes, artificial respiration, internal electrodes, etc., can solve the problems of increased trauma, high cost, additional damage to the cochlea, etc., and achieve the effect of reducing trauma, low cost, and reducing trauma reaction.

Active Publication Date: 2021-02-02
BEIJING GUANGJIE YOUNG HEALTH SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Increased trauma to the patient with risk of additional damage to the cochlea
The drug in the fluid reservoir requires a micropump to provide pressure to deliver the drug to the inner ear, and the micropump also needs to be implanted in the body, and the cost is relatively expensive

Method used

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  • Middle ear repeated drug delivery device and cochlear implant electrode
  • Middle ear repeated drug delivery device and cochlear implant electrode
  • Middle ear repeated drug delivery device and cochlear implant electrode

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Embodiment Construction

[0026] The present invention is described in further detail now in conjunction with accompanying drawing.

[0027] Such as figure 1 As shown, the middle ear repeated drug delivery device of the present invention includes a hollow pouch 1 and a connecting tube 2 connected below the pouch, and a one-way valve is provided at the connection between the pouch and the connecting tube; wherein, the The top of the pouch is open and a biological semipermeable membrane 11 is arranged at the opening, and a groove 12 is arranged laterally above the pouch to facilitate connection with the malleus handle. The middle ear repeated drug delivery device (including pouch and connecting tube, etc.) of the present invention adopts the same biocompatible material (such as silica gel, polyethylene, Teflon, etc.) as the external surface of the cochlear implant.

[0028] The bio-semipermeable membrane (collodion film, cellophane, etc.) provided at the opening above the pouch according to the present ...

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PUM

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Abstract

The invention relates to the field of otological medical devices, in particular to a middle ear repeated drug delivery device and a cochlear implant electrode. The middle ear repeat drug delivery device of the present invention comprises a hollow pouch and a connecting tube connected below the pouch, and a one-way valve is provided at the connection between the pouch and the connecting tube; wherein, the opening above the pouch is open and A biological semipermeable membrane is provided at the opening. The pouch is placed between the malleus and the long crus of the incus, the top of the pouch is in contact with the tympanic membrane, and a groove is arranged transversely above the pouch, and the groove of the pouch is stuck on the handle of the malleus. The invention creates an extremely safe, convenient and economical new technology and method for alleviating the trauma reaction of cochlear electrode implantation, inducing regeneration and replacing auditory nerve cells, optimizing the effect of cochlear implantation, and improving the speech recognition ability of patients.

Description

technical field [0001] The invention relates to the field of otological medical devices, in particular to a middle ear repeated drug delivery device and a cochlear implant electrode. Background technique [0002] Cochlear implantation has been widely used clinically. While opening the cochlear implant electrodes, injecting drugs, neurotrophic factors, genes and cells into the inner ear can reduce inner ear damage, promote inner ear nerve repair, supplement and induce auditory nerve cell regeneration . Thereby improving the effect of cochlear implantation and improving the speech recognition ability of patients. [0003] Since the U.S. FDA officially approved the application of multiconductor cochlear implants in adults in 1984, 300,000 deaf people around the world have regained their hearing through cochlear implants. Electrodes in the cochlea restore some hearing by direct electrical stimulation of the nerve tissue (spiral ganglion cells) near the electrode contacts. Ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M31/00A61N1/05A61N1/36
CPCA61M31/00A61N1/0541A61N1/36038
Inventor 杨若霖陈伟李佳楠王方园吴南
Owner BEIJING GUANGJIE YOUNG HEALTH SCI & TECH CO LTD