System for determining when electrode lead reaches bottom of cochlea during lead insertion process

• Main Authors: HUDAK EVA MARIE, TALIGOPURA VENKATA SIVA ANANTHA
• Format: Patent
• Language: Chinese; English
• Published: 29.04.2022
• Subjects: ELECTROTHERAPY; HUMAN NECESSITIES; HYGIENE; MAGNETOTHERAPY; MEDICAL OR VETERINARY SCIENCE; RADIATION THERAPY; ULTRASOUND THERAPY

An exemplary insertion management system is configured to guide a cochlear implant to apply electrical stimulation via a first electrode disposed on an electrode lead being inserted into a subject's cochlea; guiding the cochlear implant to record a differential voltage signal representative of a differential voltage between a second electrode and a third electrode while electrical stimulation is being applied via the first electrode, both the second electrode and the third electrode being disposed on the electrode lead, the second and third electrodes being different from the first electrode; determining that a signal characteristic of the differential voltage signal changes by at least a threshold amount while the differential voltage signal is being recorded; and determining that the distal end of the electrode lead is within a threshold distance of the cochlear dorsum based on the signal characteristic changing by at least a threshold amount. 示例性插入管理系统配置为：引导耳蜗植入物来经由正在插入到受体的耳蜗中的电极引线上设置的第一电极施加电刺激；引导耳蜗植入物来在电刺