Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
  • A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B17/00—Surgical instruments, devices or methods
  • A61B2017/00017—Electrical control of surgical instruments
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
  • A61B90/08—Accessories or related features not otherwise provided for
  • A61B2090/0807—Indication means
  • A61B2090/0811—Indication means for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
  • A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
  • A61B2090/306—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure using optical fibres
• • 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

Definitions

• the present invention relates to illumination devices for ophthalmic surgery and methods of use thereof.
• a significant factor in efficient and reliable illumination is coupling of light from a source disposed in a surgical console into a fiber optic of an illumination device.
• the fiber optic acts as a conduit to deliver the light to a surgical handpiece and into patients' eyes.
• aspects of the present invention are directed to techniques for enhancing alignment of an end of a fiber optic within an ophthalmic surgical console to provide better coupling of light from a source into the end of the fiber.
• Other aspects of the invention are directed to a fiber optic connector providing shutter control to control light escaping the console into a surgery room.
• Yet other aspects of the invention are directed to ensuring proper connection of an illumination device to a surgical console.
• An illumination device is for use in an ophthalmic surgical apparatus.
• the illumination device includes a fiber optic having a proximal end and a connector coupled to the fiber optic.
• the connector has a datum surface disposed a predetermined distance from the proximal end.
• the connector is configured and arranged to connect with the surgical apparatus such that the datum surface positions the proximal end at a predetermined location within the surgical apparatus when the connector is connected to the surgical apparatus.
• the connector also includes a heat sink surrounding a portion of the fiber optic.
• the heat sink is also attached to the connector wherein the fiber optic proximal end is located proximate an end of the heat sink.
• the connector is adapted to fit into and move a collar within a port in the surgical apparatus upon insertion of the connector into the port, thereby opening a shutter within the surgical apparatus to transmit light through the fiber optic.
• the connector includes a visual indicator disposed a predetermined distance from the proximal end such that a position of the visual indicator provides a visual indication that the connector is fully inserted into the surgical apparatus.
• a method of coupling an illumination device to an ophthalmic surgical apparatus comprising a light source is also accomplished by providing a fiber optic having a proximal end, providing a connector with a datum surface coupled to the fiber optic; and coupling the connector to the surgical apparatus such that the proximal end is positioned at a predetermined location relative to the light source by interference of the datum surface with a surface of the surgical apparatus, thereby transmitting light from the light source into the proximal end and through the fiber optic.
• Some examples also include a connector coupled to the fiber optic where the connector has a shutter actuation surface configured and arranged to open a shutter in the surgical apparatus when the connector is being connected to the surgical apparatus and to maintain the shutter in an open position when the connector is coupled to the surgical apparatus such that light from the light source is transmitted into the proximal end and through the fiber optic.
• FIG. 1 A is a schematic illustration of an example of an illumination device for use in an ophthalmic surgical apparatus according to aspects of the present invention
• FIG. 1 B is a schematic cross-sectional illustration of an example of an illumination device for use in an ophthalmic surgical apparatus according to aspects of the present invention
• FIG. 2 is a schematic, partial cross-sectional illustration of an example of an ophthalmic console including a port for connecting an illumination device;
• FIG. 3 is a schematic, partial cross-sectional illustration of an example of an ophthalmic console including a port having an illumination device connected thereto.
• FIG. 1A is a schematic illustration of an example of an illumination device 10 for use in an ophthalmic surgical apparatus according to aspects of the present invention
• FIG. 1 B is a schematic, cross-sectional illustration of an example of an illumination device 10 for use in an ophthalmic surgical apparatus according to aspects of the present invention. Aspects of the invention will now be described with reference to both FIGs. 1 A and 1 B.
• Illumination device 10 comprises a fiber optic 20, a connector 15 and a heat sink 30.
• an ophthalmic surgical handpiece (not shown) is provided on the distal end D of the illumination device from which light is projected into a patient's eye to permit observation by surgical staff, during surgery.
• the handpiece can have any suitable, known or yet to be developed configuration.
• the heat sink is also attached to the connector 15 so that the fiber optic proximal end 22 is located proximate an end of the heat sink 30.
• Fiber optic 20 has a proximal end 22.
• the fiber optic is positioned with the proximal end 22 exposed to light from a source (discussed below) which is disposed within the surgical console such that light can be propagated through the fiber to distal end D. It will be appreciated that proper and consistent positioning of the proximal end 22 is desirable for efficient and reliable
• fiber optic 20 is coupled to connector 15 which comprises a datum surface 25 that is disposed a predetermined distance from the proximal end 22. It will be appreciated that if fiber optic 20 is maintained at a fixed location within the connector, as discussed in greater detail below, by interfacing datum surface with a datum surface within the console, the positioning of the proximal end in the z-direction can be achieved. It will also be appreciated that by maintaining fiber optic 20 in intimate contact with the connector the positioning of the proximal end 22 in the x-direction and the y-direction can also be achieved.
• the connector 15 is configured and arranged to connect with the ophthalmic surgical apparatus such that datum surface 25 positions proximal end 22 at a predetermined location within a surgical apparatus (e.g., within a console) when the connector is connected to the surgical apparatus. It will be appreciated that it is typically advantageous that the datum surface 25 be located near the proximal end of connector 15 (i.e., relatively near the fiber proximal end 22) to reduce stack-up of tolerances which would limit the precision with which proximal end 22 can be positioned. In the illustrated embodiment, datum surface 25 is illustrated as a simple vertical surface;
• Connector 15 may be manufactured from any suitable rigid material.
• the material is a heat insulator to prevent transfer of heat generated by the fiber from reaching housing or an operator's hand.
• the connector may be made of an acetal homopolymer such as Delrin® available from the Dupont Corporation.
• the connector 15 comprises a shutter actuation surface 45. Interaction of shutter actuation surface 45 with a shutter in the surgical apparatus is discussed in greater detail below. It will be appreciated that the shutter actuation surface 45 causes the shutter to open, when connector 15 is being connected to the surgical apparatus. In addition, the shutter remains in an open position when the connector 15 is coupled to the surgical apparatus such that light from the light source is transmitted into the proximal end 22 and through fiber optic 20. Such a configuration provides advantages over a gravity operated shutter, which needs to be manually moved out of the way prior to insertion of the illumination device.
• the connector comprises a visual indicator 60 disposed a predetermined distance from the proximal end.
• the connector 15 is configured and arranged to connect with the surgical apparatus such that the visual indicator 60 position provides a visual indication that the connector 15 is fully inserted into the surgical apparatus.
• the visual indicator 60 when the connector 15 is fully inserted, the visual indicator 60 is immediately adjacent an outer surface 62 of a housing of the surgical apparatus 64 (see FIG. 3).
• the visual indicator 60 is represented by a groove.
• visual indicator 60 may assume other forms, for example, a raised ridge, and/or a contrasting color, or other suitable visible feature.
• the illumination device 10 may further comprise a heat sink 30 coupled to fiber optic 20 at a location proximate the proximal end 22.
• a heat sink it is typically desirable to maintain the fiber in intimate contact with the heat sink to facilitate precise positioning of proximal end 22 in the x-direction and the y-direction.
• heat sink 30 is typically a relatively rigid metallic tube or needle that has a larger enough lumen to allow easy insertion of an optic fiber during manufacturing but where the lumen is small enough that the fiber proximal end 22 is able to be reliably located in the x and y directions within the tolerances of the design requirements.
• an embodiment according to aspects of the present invention can be provided with one or more of a datum surface, a shutter actuation surface and a visual indicator.
• FIG. 2 is a schematic, partial cross-sectional illustration of an example of an ophthalmic surgical console 100 including a port 110 for connecting
• FIG. 3 is a schematic, partial cross-sectional illustration of an example of an ophthalmic surgical console 100 including a port 110 having illumination device 10 connected thereto.
• FIGs. 2 and 3 will be referenced together when describing aspects of the present invention below.
• Console 100 contains a light source S.
• the light source is positioned to be capable of projecting light though port 110.
• the light source may comprise any suitable light emitting apparatus (e.g., an incandescent lamp or an LED).
• Console 100 may be an ophthalmic surgical system such as those known in the art that contains apparatus in accordance with the present examples or console 100 could be a stand alone ophthalmic illuminator, similar to those known in the art, and incorporates apparatus in accordance with the present examples.
• the illumination device 10 comprises a fiber optic 20 having a proximal end 22 through which light enters illumination device 10, and a connector 15 coupled to the fiber optic 20.
• the connector 15 is connected with the surgical console 100.
• the connector 15 is configured and arranged such that datum surface 25 positions the proximal end 22 at a predetermined location relative to light source S.
• a pair of datum surfaces e.g., one on a console and one on an illumination device
• achieves alignment By this technique, mechanical positioning between a pair of datum surfaces can achieve and maintain alignment within a predetermined operating range, depending on the requirements of the amount of light needed to be captured by fiber optic 20.
• the datum surface 25 when abutting surface 141 may operate to position proximal end 22 at a location proximate a focal point of lens 150 or at another position to capture a particular amount of light from the source S.
• port 110 is moveable in direction V upon insertion of an illumination device 10 into the port 110 to operate an illumination shutter 120.
• Illumination shutter 120 controls whether light is transmitted through port 110.
• the shutter has an open position in which the shutter permits light to be transmitted through the port, and a closed position (shutter 120 is shown in the closed position in FIG. 2) in which the shutter 120 blocks transmission of light.
• a biasing feature 146 biases the shutter in the closed position.
• Biasing feature 146 in the present example is simply a spring arm that causes shutter 120 to return to the closed position when illumination device 10 is removed; however, biasing feature 146 may comprise any structure that ensures that shutter 120 blocks light when an illumination device 10 is not connected to console 100.
• a shutter actuation device 140 includes a shutter collar 143 that slides within port 110.
• Shutter collar 143 is connected to an arm 130.
• Arm 130 has a tapered edge 144 that, when moved in direction V as an illumination device 10 is inserted, forces the shutter 120 downward (i.e., overcoming the biasing feature) via contact with structure 147, permitting light L to pass into proximal end 22.
• Shutter actuation surface 45 is configured and arranged to open shutter 120 in the console when the connector 15 is being connected to the console.
• shutter actuation surface 45 is sized and shaped to interfere with surface 145 of shutter collar 143 in the port 110 such that, upon insertion of connector 15 into port 110, actuation device 140 opens shutter 120 in the manner described above.
• Shutter actuation surface 45 is configured to maintain the shutter in an open position such that light from the light source S is transmitted into the proximal end 22 and through the fiber 20 so long as connector 15 is connected within port 110.
• one or more features may be present to provide further retention of illumination device 10 beyond that which may be provided by friction between the connector 15 and the port 110.
• region or groove 40 having a reduced diameter is provided on the connector 15 and a detent is provided on the surgical apparatus to maintain connector in operative position during use.
• the detent comprises a plunger 122 biased using a flexible bar 124 that is attached to the console by fasteners 126.
• surfaces of the connector 15 be beveled to facilitate insertion of the connector 15 into port 110.

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• Health & Medical Sciences (AREA)
• Surgery (AREA)
• Life Sciences & Earth Sciences (AREA)
• Heart & Thoracic Surgery (AREA)
• Molecular Biology (AREA)
• Oral & Maxillofacial Surgery (AREA)
• Engineering & Computer Science (AREA)
• Biomedical Technology (AREA)
• Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
• Medical Informatics (AREA)
• Pathology (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Non-Portable Lighting Devices Or Systems Thereof (AREA)
• Optical Couplings Of Light Guides (AREA)
• Eye Examination Apparatus (AREA)

Priority Applications (5)

Applications Claiming Priority (4)

Publications (1)

Family

ID=43063837

Family Applications (1)

Country Status (7)

Cited By (2)

Families Citing this family (11)

Citations (5)

Family Cites Families (11)

• 2010
  • 2010-08-26 CA CA2773096A patent/CA2773096C/en active Active
  • 2010-08-26 EP EP10749569.9A patent/EP2473128B2/en active Active
  • 2010-08-26 ES ES10749569T patent/ES2569953T5/es active Active
  • 2010-08-26 WO PCT/US2010/046765 patent/WO2011028592A1/en not_active Ceased
  • 2010-08-26 JP JP2012527915A patent/JP5681190B2/ja active Active
  • 2010-08-26 CN CN201080047425.8A patent/CN102573690B/zh active Active
  • 2010-08-26 US US12/868,777 patent/US8287525B2/en active Active
• 2012
  • 2012-08-03 US US13/566,017 patent/US20120296173A1/en not_active Abandoned

Patent Citations (5)

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