CA2407360A1 - Artificial retina device with stimulating and ground return electrodes disposed on opposite sides of the neuroretina and method of attachment - Google Patents

Artificial retina device with stimulating and ground return electrodes disposed on opposite sides of the neuroretina and method of attachment Download PDF

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Publication number
CA2407360A1
CA2407360A1 CA002407360A CA2407360A CA2407360A1 CA 2407360 A1 CA2407360 A1 CA 2407360A1 CA 002407360 A CA002407360 A CA 002407360A CA 2407360 A CA2407360 A CA 2407360A CA 2407360 A1 CA2407360 A1 CA 2407360A1
Authority
CA
Canada
Prior art keywords
electrode
electrode unit
ground return
neuroretina
stimulating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002407360A
Other languages
French (fr)
Other versions
CA2407360C (en
Inventor
Alan Y. Chow
Vincent Y. Chow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pixium Vision SA
Original Assignee
Optobionics Corporation
Alan Y. Chow
Vincent Y. Chow
Imi Intelligent Medical Implants Ag
Pixium Vision Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Optobionics Corporation, Alan Y. Chow, Vincent Y. Chow, Imi Intelligent Medical Implants Ag, Pixium Vision Sa filed Critical Optobionics Corporation
Publication of CA2407360A1 publication Critical patent/CA2407360A1/en
Application granted granted Critical
Publication of CA2407360C publication Critical patent/CA2407360C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
    • A61N1/0526—Head electrodes
    • A61N1/0543—Retinal electrodes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/36046—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation of the eye
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/08—Devices or methods enabling eye-patients to replace direct visual perception by another kind of perception

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.
CA002407360A 2000-05-04 2001-05-01 Artificial retina device with stimulating and ground return electrodes disposed on opposite sides of the neuroretina and method of attachment Expired - Fee Related CA2407360C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/564,841 2000-05-04
US09/564,841 US6427087B1 (en) 2000-05-04 2000-05-04 Artificial retina device with stimulating and ground return electrodes disposed on opposite sides of the neuroretina and method of attachment
PCT/US2001/014015 WO2001083026A1 (en) 2000-05-04 2001-05-01 Artificial retina device with stimulating and ground return electrodes disposed on opposite sides of the neuroretina and method of attachment

Publications (2)

Publication Number Publication Date
CA2407360A1 true CA2407360A1 (en) 2001-11-08
CA2407360C CA2407360C (en) 2006-02-14

Family

ID=24256113

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002407360A Expired - Fee Related CA2407360C (en) 2000-05-04 2001-05-01 Artificial retina device with stimulating and ground return electrodes disposed on opposite sides of the neuroretina and method of attachment

Country Status (22)

Country Link
US (4) US6427087B1 (en)
EP (3) EP2158937B1 (en)
JP (1) JP4945046B2 (en)
KR (1) KR20030003727A (en)
CN (1) CN1438906A (en)
AT (1) ATE460956T1 (en)
AU (2) AU2001255783B2 (en)
BR (1) BR0110550A (en)
CA (1) CA2407360C (en)
CZ (1) CZ20023624A3 (en)
DE (1) DE60141574D1 (en)
ES (3) ES2509500T3 (en)
FI (1) FI20021938A (en)
HU (1) HUP0302506A3 (en)
IL (1) IL152322A0 (en)
MX (1) MXPA02010775A (en)
NO (1) NO20025250L (en)
NZ (1) NZ521976A (en)
PL (1) PL365419A1 (en)
RU (1) RU2002128726A (en)
WO (1) WO2001083026A1 (en)
ZA (1) ZA200208540B (en)

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US9289325B2 (en) 2005-07-14 2016-03-22 Pixium Vision Sa Extraocular epiretinal implant

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EP2158937A3 (en) 2010-04-14
AU2001255783B2 (en) 2004-12-09
JP4945046B2 (en) 2012-06-06
DE60141574D1 (en) 2010-04-29
US7003354B2 (en) 2006-02-21
MXPA02010775A (en) 2004-09-06
EP2289594B9 (en) 2014-10-08
WO2001083026A1 (en) 2001-11-08
KR20030003727A (en) 2003-01-10
PL365419A1 (en) 2005-01-10
EP1278572A1 (en) 2003-01-29
ATE460956T1 (en) 2010-04-15
HUP0302506A3 (en) 2005-07-28
RU2002128726A (en) 2004-03-27
ZA200208540B (en) 2004-07-22
US8306626B2 (en) 2012-11-06
EP1278572A4 (en) 2008-11-05
CN1438906A (en) 2003-08-27
CZ20023624A3 (en) 2003-06-18
US20110238134A1 (en) 2011-09-29
EP1278572B1 (en) 2010-03-17
EP2158937B1 (en) 2016-07-13
ES2509500T9 (en) 2015-01-19
EP2289594A1 (en) 2011-03-02
US20060142857A1 (en) 2006-06-29
FI20021938A (en) 2002-11-02
ES2509500T3 (en) 2014-10-17
BR0110550A (en) 2003-04-01
US6427087B1 (en) 2002-07-30
NO20025250D0 (en) 2002-11-01
US7979134B2 (en) 2011-07-12
ES2341222T3 (en) 2010-06-17
JP2003531697A (en) 2003-10-28
AU5578301A (en) 2001-11-12
IL152322A0 (en) 2003-05-29
HUP0302506A2 (en) 2003-10-28
ES2593477T3 (en) 2016-12-09
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