WO1997013449A2 - Dispositif pour aider a fixer la position d'un oeil - Google Patents

Dispositif pour aider a fixer la position d'un oeil Download PDF

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Publication number
WO1997013449A2
WO1997013449A2 PCT/DE1996/002060 DE9602060W WO9713449A2 WO 1997013449 A2 WO1997013449 A2 WO 1997013449A2 DE 9602060 W DE9602060 W DE 9602060W WO 9713449 A2 WO9713449 A2 WO 9713449A2
Authority
WO
WIPO (PCT)
Prior art keywords
eye
light
patient
operated
light sources
Prior art date
Application number
PCT/DE1996/002060
Other languages
German (de)
English (en)
Other versions
WO1997013449A9 (fr
WO1997013449A3 (fr
Inventor
Andreas Frohn
Original Assignee
Andreas Frohn
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 Andreas Frohn filed Critical Andreas Frohn
Publication of WO1997013449A2 publication Critical patent/WO1997013449A2/fr
Publication of WO1997013449A9 publication Critical patent/WO1997013449A9/fr
Publication of WO1997013449A3 publication Critical patent/WO1997013449A3/fr

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
    • 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
    • A61F9/007—Methods or devices for eye surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/14—Arrangements specially adapted for eye photography
    • A61B3/15—Arrangements specially adapted for eye photography with means for aligning, spacing or blocking spurious reflection ; with means for relaxing
    • A61B3/152—Arrangements specially adapted for eye photography with means for aligning, spacing or blocking spurious reflection ; with means for relaxing for aligning
    • 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
    • A61F9/007—Methods or devices for eye surgery
    • A61F9/008—Methods or devices for eye surgery using laser
    • A61F9/009—Auxiliary devices making contact with the eyeball and coupling in laser light, e.g. goniolenses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00681—Aspects not otherwise provided for
    • A61B2017/00694—Aspects not otherwise provided for with means correcting for movement of or for synchronisation with the body

Definitions

  • the invention relates to a device for supporting the fixation of the viewing direction and thus the position of a human eye during an eye operation.
  • the eye to be operated In the case of eye surgery, it is important that the eye to be operated is held in a fixed position so that the operating doctor can carry out the individual operation steps in a targeted and safe manner.
  • Fixing the position of the eye to be operated has not only advantages: it would sometimes even be desirable to change the position of the eye in order to, for example, B. to be able to perform a surgical cut in a more comfortable posture for the doctor to be operated and thus also more safely. For this reason, some doctors prefer to perform eye surgery even without or only with a consciously light anesthetic, so that the patient can move the eye to another desired position at the request of the operating doctor. To hereby complete success
  • the invention has for its object to provide a device with which the fixation of the viewing direction and thus the position of the eye in the eye socket is supported and can be made easier for the patient.
  • the basic idea of the invention is therefore to keep the eyes movable and to fix the position of the eye to the patient for the eye not to be operated on to offer an image pattern with at least one image point to which he should keep his gaze directed.
  • the image pattern can e.g. be a luminous picture pattern or have several luminous picture elements that can be switched on and off, if necessary.
  • a preferred possibility is to offer the patient an essentially point-shaped light source, at which he should keep his gaze focused.
  • the instruction to fix one's gaze on the light source can be given before the operation and can also be easily followed and followed during the operation by a supportive instruction from the doctor. Since the gaze directions of both eyes are positively coupled with each other, the eye to be operated on is also fixed in the desired position. If this position is to be changed, the patient is offered a light source which is positioned such that the eye is in the position desired by the doctor when the patient fixes this light source.
  • LEDs light-emitting diodes, so-called LEDs, are preferably selected, to which a lens or a lens arrangement may be assigned, so that that of the 3
  • Diodes emitted light is focused on the patient's retina.
  • a small point-shaped light source e.g. B. a light-emitting diode, which is optionally placed in front of a lens or lens arrangement, in a frame to be placed on the eye not to be operated on and spatially displaced in this frame.
  • z. B. also serve a diode with a coupled optical fiber, the free end of which then serves as a point light source.
  • a simpler option is to arrange the light sources in a regular grid, preferably in an orthogonal grid, and then selectively switch the individual light sources on and off using a selector circuit.
  • the selector circuit has a direction sensor, for. B. in the form of a joystick or a keyboard with several direction keys.
  • the selector circuit can only have four direction keys, which are assigned to the directions UP, DOWN, RIGHT and LEFT.
  • the location of the actually selected point-shaped light source can be indicated on a simple display which receives its signals from electronics connected to the selector circuit.
  • the device to be placed on the eye that is not to be operated on preferably has the shape of an eye cover or eye patch, which can be placed on the eye in a substantially light-tight manner, so that no stray light falls into the eye.
  • the position of the eye patch can be fixed.
  • a diode array is then provided for the eye cover, possibly preceded by a lens or a lens arrangement is so that the light of the diode that is switched on falls from a certain direction into the patient's eye and the patient can thus easily fix the eye on this light source.
  • An advantageous solution has also been found to be an imaging device, e.g. to use a small monitor with appropriate optics, which is placed on the patient's eye and with which image elements such as figures, landscapes, etc. are presented to the patient, the patient then fixing his eye on very specific image elements.
  • the device has an eye cover 1 which is placed on the patient's eye, which is not to be operated on.
  • This consists of a light source housing 2 and a drape 3.
  • the housing 2 is open towards the eye in the figure downwards and widens at the lower end to a shell 4, which is anatomically shaped so that this on the face of the The patient is lying around the eye.
  • a base 5 of the housing 2 a plurality of small, approximately point-shaped light-emitting diodes 6 are arranged in a flat, regular, orthogonal matrix grid, to which a lens 7 may be placed, so that the light from the LEDs is projected onto the patient's retina.
  • the diodes 6 are connected to a selector circuit 9 via a connecting cable 8.
  • This selector circuit 9 has a current source 10, a keyboard 11, electronic counter 12 and a display 13.
  • the diodes 6 are supplied via the current source 10, the selection circuit ensuring that only one of the diodes is illuminated at a time.
  • Four direction keys 14, 15, 16 and 17 of the keyboard can be used to switch on a new diode which is above, below, to the right or left of the diode 6 which has just been switched on, which is switched off when the new diode is switched on.
  • the inputs via the keyboard 11 are registered in the number electronics 12 and forwarded to the display 13, which shows schematically which of the diodes 6 is switched on.
  • the display can e.g. B. be an image of the array of diodes 6; other representations, e.g. B. the position of the diode that is switched on in relation to the center of the eye are of course possible. In certain cases it is also possible to switch on several diodes at the same time.
  • the selector circuit 9 can also have a joystick 18 or a trackball 19 or a computer mouse 20 with which the diodes to be switched on can be selected more freely than with the direction keys.
  • a screen could also be used instead of light emitting diodes, e.g. a liquid crystal screen, so that instead of a light spot or multiple light spots, any image can be presented as a fixation object. Certain picture elements can then e.g. be marked with the selection device so that the patient can then fix these picture elements.

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Vascular Medicine (AREA)
  • Optics & Photonics (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

Afin de fixer la direction du regard et donc la position d'un oeil humain pendant une opération d'un oeil, on utilise un dispositif de projection de préférence sous forme d'une calotte (1) qui recouvre l'oeil non opéré du patient et qui présente de préférence plusieurs sources ponctuelles de lumière (6), par exemple des diodes luminescentes, dont la lumière est dirigée sur la rétine de l'oeil sans être focalisée ou le cas échéant focalisée par une lentille ou par un agencement de lentilles (7). Les sources de lumière peuvent être sélectivement allumées et éteintes au moyen d'un sélecteur (9), par exemple un clavier (11) avec des touches indicatrices de direction (14, 15, 16 et 17). Comme les deux yeux se déplacent forcément ensemble, on peut ajuster la position voulue de l'oeil opéré en demandant au patient de fixer le regard sur une source de lumière sélectionnée correspondante.
PCT/DE1996/002060 1995-09-29 1996-09-27 Dispositif pour aider a fixer la position d'un oeil WO1997013449A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19536590.9 1995-09-29
DE1995136590 DE19536590C2 (de) 1995-09-29 1995-09-29 Vorrichtung zur Unterstützung der Fixierung der Blickrichtung eines menschlichen Auges

Publications (3)

Publication Number Publication Date
WO1997013449A2 true WO1997013449A2 (fr) 1997-04-17
WO1997013449A9 WO1997013449A9 (fr) 1997-05-29
WO1997013449A3 WO1997013449A3 (fr) 1997-08-14

Family

ID=7773755

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1996/002060 WO1997013449A2 (fr) 1995-09-29 1996-09-27 Dispositif pour aider a fixer la position d'un oeil

Country Status (2)

Country Link
DE (1) DE19536590C2 (fr)
WO (1) WO1997013449A2 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0151869A2 (fr) * 1983-11-17 1985-08-21 L'Esperance, Francis A. Dispositif de chirurgie ophtalmologique
EP0346846A1 (fr) * 1988-06-13 1989-12-20 Konan Camera Research Institute Inc. Appareil pour l'inspection du mouvement des yeux
WO1990014808A1 (fr) * 1989-06-05 1990-12-13 Mount Sinai School Of Medicine Of The City University Of New York Appareil et procede de marquage de la cornee
DE4442071A1 (de) * 1994-11-25 1995-06-29 Ulrich Dr Gehm Visiervorrichtung für Patienten zur dezentralen Laserbehandlung der Augenoberfläche bei nicht koaxialen Beobachtungseinrichtungen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0151869A2 (fr) * 1983-11-17 1985-08-21 L'Esperance, Francis A. Dispositif de chirurgie ophtalmologique
EP0346846A1 (fr) * 1988-06-13 1989-12-20 Konan Camera Research Institute Inc. Appareil pour l'inspection du mouvement des yeux
WO1990014808A1 (fr) * 1989-06-05 1990-12-13 Mount Sinai School Of Medicine Of The City University Of New York Appareil et procede de marquage de la cornee
DE4442071A1 (de) * 1994-11-25 1995-06-29 Ulrich Dr Gehm Visiervorrichtung für Patienten zur dezentralen Laserbehandlung der Augenoberfläche bei nicht koaxialen Beobachtungseinrichtungen

Also Published As

Publication number Publication date
DE19536590A1 (de) 1997-04-10
WO1997013449A3 (fr) 1997-08-14
DE19536590C2 (de) 1997-09-25

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