Abstract:
PROBLEM TO BE SOLVED: To provide a system for identifying a surgical cassette which needs to use no fragile tab. SOLUTION: The system comprises a surgical controlling system 10 and a cassette 22, wherein the cassette 22 has a set of identification tag 24 changing from opacity to transparency. Changing the opacity of the tag 24 enables the surgical controlling system 10 to identify easily the type of the working cassette 22. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a zooming mechanism for an eye tracking system. SOLUTION: The zooming mechanism 30 includes a pyramidal prism 31 having a plurality of reflecting small faces 32 or transmissive small surfaces crossing at an apex. Incident light beams 35 sent toward the respective small surfaces 32 of the prism 31 are reflected or refracted on a plane nearly vertical to an optical axis 34 to form a plurality of optical spots disposed around the optical axis 34. The prism 31 can make translation along the optical axis 34 among a plurality of axial direction positions for changing intervals between the optical spots substantially without varying its size. The optical spots are desirably sent toward a boundary regulated by the two adjacent surfaces of an eye having different reflectances. Reflected energy is detected from each of a plurality of positions to adjust the size of a pattern formed by the optical spots substantially without varying the diameters of the individual spots. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a system and a method for attenuating brightness of a light beam while minimizing undesirable effect such as shadow and color rings caused by positional attenuation.SOLUTION: Output brightness of a lighting device is varied by chopping an output light beam so that the beam is alternately shielded and unshielded. A light shield device is rapidly moved into and out of a transmission path of the light beam. Brightness of the light beam received at a certain site is attenuated on the basis of a time amount per cycle when the light beam is shielded or when the light beam is unshielded.
Abstract:
PROBLEM TO BE SOLVED: To provide a multi-spot laser probe for use in photocoagulation.SOLUTION: A laser probe includes an emitting optical fiber, optics, and two or more receiving optical fibers. The emitting optical fiber emits a beam of laser light. The optics diffract the beam of light emitted by the emitting optical fiber. The receiving optical fibers each receive a beam of light diffracted by the optics.
Abstract:
PROBLEM TO BE SOLVED: To provide an intraocular lens delivery system having an injector body (125), a plunger (110), a nozzle portion (160), and a heater.SOLUTION: A plunger is slidably movable within an injector body. A nozzle portion is located on a distal end of the injector body and has a hollow interior adapted for receiving an intraocular lens. A heater is integrated with an intraocular lens delivery system and is adapted to heat the intraocular lens.
Abstract:
PROBLEM TO BE SOLVED: To provide coated intraocular lenses and other medical implants.SOLUTION: Coated medical implants have an implant body 110 configured for securing in or adjacent to body tissue of a patient. The implant body has an implant surface and a coating 170 is formed on at least a portion of the implant surface. The coating includes a coating outer surface of a first chemical component 130 that is chemically bonded to a carboxylate functionality of a second chemical component 140. The second chemical component is immobilized by amide linkage to an underlying third chemical component 150 that is plasma coated directly onto implant body surfaces. The coating either inhibits or prevents the adhesion of protein and/or cellular proliferation or may be a non-fouling coating.
Abstract:
PROBLEM TO BE SOLVED: To provide topical formulations of olopatadine for treating allergic or inflammatory disorders of an eye and nose.SOLUTION: A solution formulation contains about 0.17-0. 62% (w/v) olopatadine and polyvinylpyrrolidone or polystyrene sulfonic acid in an amount sufficient to enhance the physical stability of the solution. A solution composition is topically administrable to treat allergic or inflammatory disorders of the eye and nose, which contains 0.17-0. 62% (w/v) olopatadine and a polymeric physical stability-enhancing ingredient consisting essentially of polyvinylpyrrolidone or polystyrene sulfonic acid in an amount sufficient to enhance the physical stability of the solution.
Abstract:
PROBLEM TO BE SOLVED: To provide a high throughput endo-illuminator and illumination surgical system.SOLUTION: The surgical system includes: a light source 12 for providing a light beam; a proximal optical fiber 13, optically coupled to the light source for receiving and transmitting the light beam; a distal optical fiber, optically coupled to a distal end of the proximal optical fiber, for receiving the light beam and emitting the light beam to illuminate a surgical site, wherein the distal optical fiber 20 comprises a tapered section having a proximal-end diameter larger than a distal-end diameter; a handpiece 10, operably coupled to the distal optical fiber; and a cannula 16, operably coupled to the handpiece, for housing and directing the distal optical fiber.
Abstract:
PROBLEM TO BE SOLVED: To provide an improved method for controlling intraocular pressure during ophthalmic surgery.SOLUTION: This method for controlling intraocular pressure with a microsurgical system includes steps of: providing an infusion chamber containing an irrigating fluid; selecting an intraocular pressure; pressurizing the infusion chamber with a pressurized gas to provide irrigating fluid to a surgical device; measuring a flow rate of the fluid within a fluid line fluidly coupled to the surgical device; providing a signal corresponding to the measured flow rate to a computer; calculating a predicted value of the intraocular pressure with the computer in response to the signal; and adjusting a level of the pressurized gas in response to a signal from the computer to maintain the predicted value proximate the selected intraocular pressure.