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Stimulation Electrode Leads in Minimally Invasive Cochlear Implant Surgery

An electrode lead, cochlear implant system technology, applied in the field of medical implants, can solve the problem of no excessive electrode lead length and the like

Active Publication Date: 2021-06-08
MED EL ELEKTROMEDIZINISCHE GERAETE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There does not appear to be an existing discussion of how to store excess electrode lead length when using the newer minimally invasive drill access techniques

Method used

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  • Stimulation Electrode Leads in Minimally Invasive Cochlear Implant Surgery
  • Stimulation Electrode Leads in Minimally Invasive Cochlear Implant Surgery
  • Stimulation Electrode Leads in Minimally Invasive Cochlear Implant Surgery

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Experimental program
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Embodiment Construction

[0022]Embodiments of the present invention relate to a cochlear implant electrode lead adapted to implement new storage techniques for excess electrode leads consistent with minimally invasive implantation methods without creating additional storage cavities.

[0023] Figure 4 shows anatomical details of a mastoid channel 400 suitable for excess electrode storage, and Figure 5 Various logical steps in a method of surgically inserting a cochlear implant electrode array according to an embodiment of the present invention are shown. The mastoid channel 400 extends along a longitudinal channel axis 405 from the laterally outer surface of the patient's mastoid bone 404 through the patient's mastoid bone 406 into the middle ear 103 . Initially, in step 501, an enlarged diameter external mastoid tunnel 401 (e.g., about 3.0 mm in diameter) is prepared, which is drilled through the mastoid bone 406 to the facial nerve and tympanum during implantation surgery. The channel (eg, about...

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PUM

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Abstract

An implantable electrode arrangement for a cochlear implant system is described. The electrode lead includes a lead structure control element configured to control the lead shape of the electrode lead between an inserted state and a post-inserted state in which the electrode lead within the mastoid tunnel has a longitudinal lead axis, in the post-insertion state, the facial recessed portion of the electrode lead fitting within the limited diameter portion of the mastoid channel associated with the facial recessed portion of the mastoid bone has a longitudinal lead axis along said channel axis, And, the storage portion of the electrode lead fitted within the enlarged diameter portion of the mastoid channel transversely to the facial recessed portion has a longitudinal lead axis wound radially about the channel axis in a helical shape.

Description

[0001] This application claims priority to US Provisional Patent 62 / 415,576, filed November 1, 2016, which is incorporated herein by reference in its entirety. technical field [0002] The present invention relates to medical implants, and more particularly, to implantable electrode assemblies for use in cochlear implant systems. Background technique [0003] Such as figure 1 As shown in , the normal ear transmits sound through the outer ear 101 to the tympanic membrane (eardrum) 102, which moves the bones of the middle ear 103, which in turn vibrates the oval and round window openings of the cochlea 104. The cochlea 104 is a narrow, long tube that is wound helically around the axis of the cochlea 104 about two and a half turns. The cochlea 104 includes an upper channel known as the scala vestibuli and a lower channel known as the scala tympani, which are connected by the cochlear duct. The scala tympani forms an upright spiral cone with a center called the modiolus in whi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R25/02
CPCA61N1/0541A61N1/36038C09B9/02C09B11/12C09B57/00C09B69/00C09B69/101C09B69/103C09B69/109C11D3/40D06L4/60D06L4/657D06P1/0012A61N1/36139A61N1/372A61N1/3752C11D3/0084C11D3/187C11D3/20C11D3/26C11D3/42
Inventor 马克斯·弗勒利希丹尼尔·舒尔齐希
Owner MED EL ELEKTROMEDIZINISCHE GERAETE GMBH
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