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Stimulator Design of Retinal Prosthesis
2017
IEICE transactions on electronics
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This study focuses on the design of electrical stimulator for retinal prosthesis. ...
The concept of a smart electrode, in which a microchip is embedded inside an electrode, is presented for future retinal prostheses with over 1000 electrodes. ...
Kanda of Osaka University of Medical School for their continuous supports. ...
doi:10.1587/transele.e100.c.523
fatcat:vq3bpiu275d3rel7d7wc2wfb4y
Performance improvement and in vivo demonstration of a sophisticated retinal stimulator using smart electrodes with built-in CMOS microchips
2018
Japanese Journal of Applied Physics
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A retinal stimulator for next-generation retinal prosthesis was fabricated and demonstrated through in vivo experiments. ...
The assembly process of smart electrodes with built-in microchips was also optimized. ...
Acknowledgments This work was partially supported by a Grant-in-Aid for Scientific Research (C), No. 18K04265, from the Japan Society for the Promotion of Science (JSPS) and a research grant from Murata ...
doi:10.7567/jjap.57.1002b3
fatcat:dat44ledbrdytkax6tvu3u6fey
CMOS Imaging Devices for Biomedical Applications
2011
IEICE transactions on communications
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The topics include dish type image sensors, deep-brain implantation devices for small animals, and retinal prosthesis devices. ...
Fundamental device structures and their characteristics are described, and the results of in vivo experiments are presented. key words: CMOS image sensors, biomedical applications, retinal prosthesis, ...
Ltd. for their valuable discussions and conducting animal experiments involving retinal prosthesis, and Profs. S. Shiosaka and H. ...
doi:10.1587/transcom.e94.b.2454
fatcat:3lfqyqtcyzfk5f4ueqrbuw2yla
Functional Validation of Intelligent Retinal Stimulator Using Microchip-embedded Smart Electrode
2018
Sensors and materials
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A smart electrode that has a built-in CMOS microchip was fabricated for use as a retinal stimulator used in retinal prostheses. ...
Based on this ex vivo experiment, the fabricated electrode showed optimal performance for retinal stimulation. ...
., Japan, for technical discussions. ...
doi:10.18494/sam.2018.1649
fatcat:37za2utjwrasjd6wlbfpk23rie
Current Modalities for Low Vision Rehabilitation
2021
Cureus
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Visual rehabilitation is an effective method for increasing the quality of life among individuals with low vision or blindness due to untreatable causes. ...
Low vision rehabilitation aims for patients to use their residual vision effectively and efficiently to enable them to live independent and productive lives. ...
FIGURE 3 : 3 Smart cane Smart cane [24] (Graphic courtesy: Amit Bandre)
TABLE 1 : 1 Studies using MSCs for retinal degenerative diseases. ...
doi:10.7759/cureus.16561
pmid:34466307
pmcid:PMC8396411
fatcat:mneemjp6izaufb7nimj3b5jtnm
Vision Restoration and Vision Chip Technologies
2011
Procedia Computer Science
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Also, the vertically integrated vision chip technology is bringing a revolution in the design of artificial vision systems. ...
The future smart 3D image sensor architectures will most probably consist of a sensor layer at the top and various processing layers below. ...
Although the epiretinal prosthesis offer lower resolution, but requires shorter surgery for implantation. ...
doi:10.1016/j.procs.2011.12.036
fatcat:myplqv35ujfplkp6l5dnjwt6bm
Implantable CMOS Biomedical Devices
2009
Sensors
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Topics include retinal prosthesis devices and deep-brain implantation devices for small animals. Fundamental device structures and characteristics as well as in vivo experiments are presented. ...
Acknowledgements The research related to retinal prostheses was supported in part by the Strategic Research Program for Brain Sciences, MEXT, Japan, by the Asahi Glass Foundation, and by a Health and Labour ...
The research related to in vivo CMOS image sensing devices was supported in part by the Semiconductor Technology Academic Research Center (STARC), and by the Japan Science and Technology Agency (JST-CREST ...
doi:10.3390/s91109073
pmid:22291554
pmcid:PMC3260631
fatcat:eezqmssrozcmdorisuy2tfpkwy
Implantable CMOS biomedical devices
2012
2012 IEEE International Meeting for Future of Electron Devices, Kansai
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Topics include retinal prosthesis devices and deep-brain implantation devices for small animals. Fundamental device structures and characteristics as well as in vivo experiments are presented. ...
Acknowledgements The research related to retinal prostheses was supported in part by the Strategic Research Program for Brain Sciences, MEXT, Japan, by the Asahi Glass Foundation, and by a Health and Labour ...
The research related to in vivo CMOS image sensing devices was supported in part by the Semiconductor Technology Academic Research Center (STARC), and by the Japan Science and Technology Agency (JST-CREST ...
doi:10.1109/imfedk.2012.6218567
fatcat:rfs5lpbz35cxxaqfuwfir4ex7e
Artificial Retina IC
[chapter]
2010
Bio-Medical CMOS ICs
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Fig. 4 4 Three types of retinal prosthesis.
Fig. 6 6 Illustraion of STS-based retinal prosthesis system. Cortesy of Nidek Co. Inc.
Fig. 7 7 A mock-up system of STS-based retinal prosthesis. ...
The system of epi-retinal implanation can be used an artificial cochlear system except for the sitmulator. ...
doi:10.1007/978-1-4419-6597-4_14
dblp:series/icas/Ohta11
fatcat:37vrjmy3izgs5mkmehqdbjanvi
A visual prosthesis with 100 electrodes featuring wireless signals and wireless power transmission
2008
IEICE Electronics Express
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A visual prosthesis is an artificial sensory organ that transmits visual information to a blind person by electrically stimulating residual neurons in the visual nervous system. ...
We propose a visual prosthesis containing a multiplexer that is separately placed from the stimulator unit. ...
Tano, "Silicon LSI-based smart stimulators for retinal prosthesis," IEEE Eng. Med. Biol. Mag.Terasawa, H. Tashiro, A. Uehara, T. Saitoh, M. Ozawa, T. ...
doi:10.1587/elex.5.574
fatcat:bls4kwx7hzdj7padzpxddeu5my
Guest Editorial: Sense and Sensibility in Neuroengineering
2007
IEEE Transactions on Biomedical Engineering
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Asher and colleagues developed sophisticated image processing that can potentially track the implant position, as well as process and convert the optical image into patterned electric stimulation in real ...
the visual image. ...
doi:10.1109/tbme.2007.894853
pmid:17554815
fatcat:kfvuyr7pmvfrhllmgay4qq3l5u
Development and Implantation of a Minimally Invasive Wireless Subretinal Neurostimulator
2009
IEEE Transactions on Biomedical Engineering
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A wirelessly operated, minimally invasive retinal prosthesis was developed for preclinical chronic implantation studies in Yucatan minipig models. ...
Wireless operation of the retinal implant has been verified both in vitro and in vivo in three pigs for more than seven months, the latter by measuring stimulus artifacts on the eye surface using contact ...
Since the optimal current level and stimulation protocols for providing restoration of usable visual percepts are not known, our design concept was to keep the 'smart' image processing hardware and/or ...
doi:10.1109/tbme.2009.2021401
pmid:19403357
pmcid:PMC7444418
fatcat:zfme3a5rwvezvkulhz6jkq6ira
New Era of Electroceuticals: Clinically Driven Smart Implantable Electronic Devices Moving towards Precision Therapy
2022
Micromachines
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and qualified smart electroceutical implant for targeted clinical use. ...
Herein, the article discusses the smart implants' development challenges and opportunities, electromagnetic field effects, and their potential consequences, which will be useful for developing a reliable ...
Although the above introduced retinal prosthesis systems and sub-systems, such as the bionic eye, retinal implants, and their electrode systems, etc., are authenticating with clinical experiment results ...
doi:10.3390/mi13020161
pmid:35208286
pmcid:PMC8876842
fatcat:2ctpuebpyvdkpmkvkeapxbhlje
Recent Progress in Wireless Sensors for Wearable Electronics
2019
Sensors
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Also, state-of-the-art research related to the application of wearable sensor systems with wireless functionality is discussed, including electronic skin, smart contact lenses, neural interfaces, and retinal ...
Current challenges and prospects of wireless sensor systems are discussed. ...
Acknowledgments: The authors own many thanks to the anonymous reviewers for their instructive comments.
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/s19204353
pmid:31600870
pmcid:PMC6848938
fatcat:ogirk7mofndnzn4elqdqflgzfe
Fabrication of Fork-Shaped Retinal Stimulator Integrated with CMOS Microchips for Extension of Viewing Angle
2014
Sensors and materials
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A fork-shaped retinal stimulator for a wide viewing angle was fabricated and demonstrated. This stimulator has two flexible fork elements, each with a stimulus head. ...
Retinal stimulation by the device evoked nerve responses from optic chiasma and produced a specific peak of evoked potential. ...
It is also supported by a Grant-in-Aid for Young Scientists (B), #23760312, from the Japan Society for the Promotion of Science. ...
doi:10.18494/sam.2014.1029
fatcat:ipilkc3mffgk7jx2kfpnto46ky
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