ARTIFICIAL RETINA DEVICE WITH STIMULATING AND GROUND RETURN ELECTRODES DISPOSED ON OPPOSITE SIDES OF THE NEURORETINA AND METHOD OF ATTACHMENT
An artificial retinal device (10), implanted in the subretinal space of the eye in persons with certain types of retinal blindness, induces artificial vision by electrical stimulation of the remaining viable cells of the retina. The artificial retina device (10) includes a stimulation electrode unit...
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| description | An artificial retinal device (10), implanted in the subretinal space of the eye in persons with certain types of retinal blindness, induces artificial vision by electrical stimulation of the remaining viable cells of the retina. The artificial retina device (10) includes a stimulation electrode unit (12) preferably placed in the subretinal space and a tail like extension (30) housing a distant electrode ground electrode unit (16) that may be placed in the vitreous cavity. The stimulating electrode unit includes an array of electrode subunits (22). Each electrode subunit (22) includes one or more microphotodiodes (23a) electrically connected, for example, in series to provide increased voltage and current to the microelectrode. The stimulation electrode unit (12) and the ground return electrode (14) of the ground return electrode unit (16) are preferably disposed on opposite sides of the neuroretina to allow for efficient and high resolution transretinal electrical stimulation of the neuroretinal cells.
Un dispositivo retinal artificial 10, implantado en el espacio subretinal del ojo en personas con ciertos tipos de ceguera retinal, induce vision artificial mediante estimulacion electrica de las celulas viables restantes de la retina; el dispositivo de retina artificial 10 incluye una unidad de electrodos de estimulacion 12, de preferencia colocada en el espacio subretinal y una extension de tipo cola 30 que aloja una unidad de electrodo de tierra de electrodo distante 16 que puede estar colocado en la cavidad vitrea; la unidad de electrodo de estimulacion incluye una disposicion de subunidades de etectrodo 22; cada subunidad de electrodo 22 incluye uno o mas microfotodiodos 23a electricamente conectados, por ejemplo, en serie para proveer voltaje y comente incrementados al microelectrodo; la unidad de electrodo de estimulacion 12 y el electrodo de regreso a tierra 14 de la unidad de electrodo a tierra 16, de preferencia se colocan en lados opuestos de la neurorretina para permitir estimulacion electrica transretinal eficiente y de alta resolucion de las celulas neurorretinales. |
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Un dispositivo retinal artificial 10, implantado en el espacio subretinal del ojo en personas con ciertos tipos de ceguera retinal, induce vision artificial mediante estimulacion electrica de las celulas viables restantes de la retina; el dispositivo de retina artificial 10 incluye una unidad de electrodos de estimulacion 12, de preferencia colocada en el espacio subretinal y una extension de tipo cola 30 que aloja una unidad de electrodo de tierra de electrodo distante 16 que puede estar colocado en la cavidad vitrea; la unidad de electrodo de estimulacion incluye una disposicion de subunidades de etectrodo 22; cada subunidad de electrodo 22 incluye uno o mas microfotodiodos 23a electricamente conectados, por ejemplo, en serie para proveer voltaje y comente incrementados al microelectrodo; la unidad de electrodo de estimulacion 12 y el electrodo de regreso a tierra 14 de la unidad de electrodo a tierra 16, de preferencia se colocan en lados opuestos de la neurorretina para permitir estimulacion electrica transretinal eficiente y de alta resolucion de las celulas neurorretinales.</description><edition>6</edition><language>eng ; spa</language><subject>BANDAGES, DRESSINGS OR ABSORBENT PADS ; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS ; ELECTROTHERAPY ; FILTERS IMPLANTABLE INTO BLOOD VESSELS ; FIRST-AID KITS ; FOMENTATION ; HUMAN NECESSITIES ; HYGIENE ; MAGNETOTHERAPY ; MEDICAL OR VETERINARY SCIENCE ; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES ; PROSTHESES ; RADIATION THERAPY ; TREATMENT OR PROTECTION OF EYES OR EARS ; ULTRASOUND THERAPY</subject><creationdate>2004</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20040906&DB=EPODOC&CC=MX&NR=PA02010775A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25551,76304</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20040906&DB=EPODOC&CC=MX&NR=PA02010775A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>CHOW, VINCENT, Y</creatorcontrib><title>ARTIFICIAL RETINA DEVICE WITH STIMULATING AND GROUND RETURN ELECTRODES DISPOSED ON OPPOSITE SIDES OF THE NEURORETINA AND METHOD OF ATTACHMENT</title><description>An artificial retinal device (10), implanted in the subretinal space of the eye in persons with certain types of retinal blindness, induces artificial vision by electrical stimulation of the remaining viable cells of the retina. The artificial retina device (10) includes a stimulation electrode unit (12) preferably placed in the subretinal space and a tail like extension (30) housing a distant electrode ground electrode unit (16) that may be placed in the vitreous cavity. The stimulating electrode unit includes an array of electrode subunits (22). Each electrode subunit (22) includes one or more microphotodiodes (23a) electrically connected, for example, in series to provide increased voltage and current to the microelectrode. The stimulation electrode unit (12) and the ground return electrode (14) of the ground return electrode unit (16) are preferably disposed on opposite sides of the neuroretina to allow for efficient and high resolution transretinal electrical stimulation of the neuroretinal cells.
Un dispositivo retinal artificial 10, implantado en el espacio subretinal del ojo en personas con ciertos tipos de ceguera retinal, induce vision artificial mediante estimulacion electrica de las celulas viables restantes de la retina; el dispositivo de retina artificial 10 incluye una unidad de electrodos de estimulacion 12, de preferencia colocada en el espacio subretinal y una extension de tipo cola 30 que aloja una unidad de electrodo de tierra de electrodo distante 16 que puede estar colocado en la cavidad vitrea; la unidad de electrodo de estimulacion incluye una disposicion de subunidades de etectrodo 22; cada subunidad de electrodo 22 incluye uno o mas microfotodiodos 23a electricamente conectados, por ejemplo, en serie para proveer voltaje y comente incrementados al microelectrodo; la unidad de electrodo de estimulacion 12 y el electrodo de regreso a tierra 14 de la unidad de electrodo a tierra 16, de preferencia se colocan en lados opuestos de la neurorretina para permitir estimulacion electrica transretinal eficiente y de alta resolucion de las celulas neurorretinales.</description><subject>BANDAGES, DRESSINGS OR ABSORBENT PADS</subject><subject>DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS</subject><subject>ELECTROTHERAPY</subject><subject>FILTERS IMPLANTABLE INTO BLOOD VESSELS</subject><subject>FIRST-AID KITS</subject><subject>FOMENTATION</subject><subject>HUMAN NECESSITIES</subject><subject>HYGIENE</subject><subject>MAGNETOTHERAPY</subject><subject>MEDICAL OR VETERINARY SCIENCE</subject><subject>ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES</subject><subject>PROSTHESES</subject><subject>RADIATION THERAPY</subject><subject>TREATMENT OR PROTECTION OF EYES OR EARS</subject><subject>ULTRASOUND THERAPY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2004</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjcEKwjAQRHvxIOo_LN6FqojnJdk2C21Sko16K0XiSbRQf8N_toV-gKcZ5g0zy-yLXrhgxViBJ2GLoOnCiuDKYiAI17HCMS8BrYbSuzjK2IzeAlWkxDtNATSHxgXS4Cy4ZrQsBIEn5AoQQ2ApejdfTFM1iXF6oiiCytRkZZ0tHt1zSJtZV9m2IFFml_p3m4a-u6dX-rT1rcH8kO_z8_mEx79KPzLiQKc</recordid><startdate>20040906</startdate><enddate>20040906</enddate><creator>CHOW, VINCENT, Y</creator><scope>EVB</scope></search><sort><creationdate>20040906</creationdate><title>ARTIFICIAL RETINA DEVICE WITH STIMULATING AND GROUND RETURN ELECTRODES DISPOSED ON OPPOSITE SIDES OF THE NEURORETINA AND METHOD OF ATTACHMENT</title><author>CHOW, VINCENT, Y</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_MXPA02010775A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; spa</language><creationdate>2004</creationdate><topic>BANDAGES, DRESSINGS OR ABSORBENT PADS</topic><topic>DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS</topic><topic>ELECTROTHERAPY</topic><topic>FILTERS IMPLANTABLE INTO BLOOD VESSELS</topic><topic>FIRST-AID KITS</topic><topic>FOMENTATION</topic><topic>HUMAN NECESSITIES</topic><topic>HYGIENE</topic><topic>MAGNETOTHERAPY</topic><topic>MEDICAL OR VETERINARY SCIENCE</topic><topic>ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES</topic><topic>PROSTHESES</topic><topic>RADIATION THERAPY</topic><topic>TREATMENT OR PROTECTION OF EYES OR EARS</topic><topic>ULTRASOUND THERAPY</topic><toplevel>online_resources</toplevel><creatorcontrib>CHOW, VINCENT, Y</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>CHOW, VINCENT, Y</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ARTIFICIAL RETINA DEVICE WITH STIMULATING AND GROUND RETURN ELECTRODES DISPOSED ON OPPOSITE SIDES OF THE NEURORETINA AND METHOD OF ATTACHMENT</title><date>2004-09-06</date><risdate>2004</risdate><abstract>An artificial retinal device (10), implanted in the subretinal space of the eye in persons with certain types of retinal blindness, induces artificial vision by electrical stimulation of the remaining viable cells of the retina. The artificial retina device (10) includes a stimulation electrode unit (12) preferably placed in the subretinal space and a tail like extension (30) housing a distant electrode ground electrode unit (16) that may be placed in the vitreous cavity. The stimulating electrode unit includes an array of electrode subunits (22). Each electrode subunit (22) includes one or more microphotodiodes (23a) electrically connected, for example, in series to provide increased voltage and current to the microelectrode. The stimulation electrode unit (12) and the ground return electrode (14) of the ground return electrode unit (16) are preferably disposed on opposite sides of the neuroretina to allow for efficient and high resolution transretinal electrical stimulation of the neuroretinal cells.
Un dispositivo retinal artificial 10, implantado en el espacio subretinal del ojo en personas con ciertos tipos de ceguera retinal, induce vision artificial mediante estimulacion electrica de las celulas viables restantes de la retina; el dispositivo de retina artificial 10 incluye una unidad de electrodos de estimulacion 12, de preferencia colocada en el espacio subretinal y una extension de tipo cola 30 que aloja una unidad de electrodo de tierra de electrodo distante 16 que puede estar colocado en la cavidad vitrea; la unidad de electrodo de estimulacion incluye una disposicion de subunidades de etectrodo 22; cada subunidad de electrodo 22 incluye uno o mas microfotodiodos 23a electricamente conectados, por ejemplo, en serie para proveer voltaje y comente incrementados al microelectrodo; la unidad de electrodo de estimulacion 12 y el electrodo de regreso a tierra 14 de la unidad de electrodo a tierra 16, de preferencia se colocan en lados opuestos de la neurorretina para permitir estimulacion electrica transretinal eficiente y de alta resolucion de las celulas neurorretinales.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | BANDAGES, DRESSINGS OR ABSORBENT PADS DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS ELECTROTHERAPY FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE MAGNETOTHERAPY MEDICAL OR VETERINARY SCIENCE ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PROSTHESES RADIATION THERAPY TREATMENT OR PROTECTION OF EYES OR EARS ULTRASOUND THERAPY |
| title | ARTIFICIAL RETINA DEVICE WITH STIMULATING AND GROUND RETURN ELECTRODES DISPOSED ON OPPOSITE SIDES OF THE NEURORETINA AND METHOD OF ATTACHMENT |
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