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5934285 |
Method for reducing irregular astigmatism and debris/epithelium in the interface during lamellar corneal flap/cap surgery
A method for reducing irregular astigmatism and debris during lamellar surgery of the eye is practiced by preoperatively marking the corneal surface with a pattern or radial and pararadial lines....
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5931846 |
Instruments for use in performing gel injection adjustable keratoplasty
The present invention provides a surgical technique and instrument kit that allows for subtle modification of the corneal curvature by interlamellar injection of a synthetic gel at the corneal...
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5921999 |
System and method employing a pie-zoelectric crystal and transverse oscillation to perform a capsulotomy
A system and method for performing a capsulotomy employ a handpiece including a cutting assembly that fits into the anterior chamber of the eye, and cuts an opening in the capsule of the eye with...
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5876439 |
Method and appartus for adjusting corneal curvature using a fluid-filled corneal ring
An adjustable intrastromal device adapted for implantation in the cornea and formed of a flexible hollow shell composed of a material such as a silicone or urethane polymer, with a chamber that may...
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5873883 |
Hydraulic capsulorhexitome
A surgical apparatus and method for incising an aperture in the anterior capsule of the human eye are disclosed. The apparatus or capsulorhexitome, comprises a hollow shaft, a concentric cutting...
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5871492 |
Rotary device for removing ophthalmic lens
A system and method for reducing and removing and ophthalmic lens of a mammalian eye. The system includes a rotary lens-reducing probe device of either straight or curved configuration, said probe...
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5861955 |
Topographical cornea mapping for corneal vision correction
A method and device for highly accurate corneal topographical mapping and a device for effecting the mapping for use in effecting vision correction by removal of corneal tissue. The method and...
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5860994 |
Remotely operable intraocular surgical instrument for automated capsulectomies
A remotely operable intraocular surgical instrument specially adapted to perform anterior capsulectomy/capsulorhexis for extracapsular cataract extractions and emulsifications is disclosed. The...
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5857995 |
Multiple bladed surgical cutting device removably connected to a rotary drive element
A cutting device for the cutting and reduction of matter from a surgical site having a cutting head having an entry tip and three or more cutting blades positioned on opposed leading edges of a...
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5843105 |
System for inserting material into corneal stroma
This invention is an improved method and kit for producing a desired channel or pathway in the interlamellar space in the corneal stroma for inserting a bio-compatible material. The method involves...
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5833701 |
Procedure and device for corrective and therapeutic eye treatment
A device and method for the selective removal of corneal tissue, and change of curvature thereof, for refractive vision correction, and for removal of corneal tissue for therapeutic treatment of...
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5810857 |
Surgical knife for controlled lengthening of an incision
A surgical knife has a blade portion including a sharp edge disposed in a first plane and a dull portion offset from the first plane by a selected amount substantially equal to the amount of...
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5807401 |
Ophthalmic surgical apparatus for pulverizing and removing the lens nucleus from the eye of a living being
An ophthalmic surgical device for pulverizing the lens nucleus in the eye and for removing particles of the macerated lens nucleus from the eye of a living being, includes a housing which supports...
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5807380 |
Optical guide and method for use in corrective laser eye surgery
An optical guide dispenses laser light that is incident outside a selected region during laser eye surgery. The guide is formed as a body with a passageway of selected geometrical cross-section...
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5792160 |
Epithelial remover tool
A scrubber pad for a rotating epithelial removal tool is made of a single piece of substantially rigid plastic which has formed thereon a scrubbing surface equipped with a radial channel or...
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5792161 |
Device and method for implanting an intralamellar ring in the correction of ametropias
A device that permits and facilitates implantation of an intracorneal ring for the correction of ametropias has two semicircular complementary strip-like cutting members, a support for maintaining...
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5779723 |
Device for corneal surgery
A device for corneal surgery includes an oscillating blade which, during a cutting process, separates a corneal lamella. The movement of the blade is stopped at a certain place so that the...
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5766198 |
Surgical knife employing a vacuum to ensure precise depth of incisions
The present invention discloses a surgical instrument system including a surgical knife for use in incising a tissue of a patient and a vacuum system coupled to the surgical knife. The surgical...
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5755785 |
Sutureless corneal transplantation method
A method of repairing a cornea of an eye. A donor material of living tissue in the shape of a partial sphere having an exterior Bowman's membrane of living tissue, is first die cut to define an...
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5728117 |
Retractable capsulorrehexis instument
A capsulorrhexis instrument that is retractable within a tube and extendable into a position projecting out of the tube. The instrument comprises a flexible band having a razor sharp cutting edge...
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5716363 |
Pars plana vitrectomy tool
An intracellular surgical tool for removing material from an eye of a patient. The tool is provided with a blade to allow the tool to make its own incision in the eye. The tool is provided with a...
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5702414 |
Method of implanting an intraocular implant
An ophthalmic implant for treatment of glaucoma, a delivery device for implanting such an implant, and a method of implanting such an implant. The implant includes a tube having an inlet end, an...
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5700274 |
Refractive surgery knife
The refractive surgery keratotomy knife has a handle with a footplate and a holding member for receiving and holding a flared surgical blade fixed to the handle and knife body. The footplate is...
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5697945 |
Corneal surface marker and marking method for reducing irregular astigmatism during lamellar (LASIK) corneal surgery
A corneal surface marker is used to improve centration and repositioning of a corneal cap or flap in lamellar corneal surgery. The marker has inner and outer concentric rings with marking radial...
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5695509 |
Aspherical optical molds for continuous reshaping the cornea based on topographical analysis
Continuous, aspheric optical molds for reshaping the surface of the cornea having an inner concave surface matched to the topography of the cornea. The curvatures of the molds are modified from a...
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5695461 |
Ophthalmic instrument for fracturing and removing a cataract and a method for using the same
A ophthalmic hand piece having a phaco needle or YAG laser is provided with a balloon nucleofractis irrigation sleeve. The balloon nucleofractis irrigation sleeve includes an irrigation conduit, a...
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5693092 |
Adjustable devices for corneal curvature adjustment
The intrastromal corneal ring is adjustable in thickness and has an elongated, flexible, preferably transparent or translucent body which forms a circle. The intrastromal corneal ring is of a size...
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5693062 |
Ophthalmic surgical apparatus for macerating and removing the lens nucleus from the eye of a living being
An ophthalmic surgical device for macerating the lens nucleus in the eye and for removing particles of the macerated lens nucleus from the eye of a living being, includes a hand-held housing with a...
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5690658 |
Keratorefractive system and method
A set of surgical instruments and a method for performing Keratorefractive eye surgery is disclosed. The set of surgical instruments includes two or more knife blades for making incisions of a...
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5690657 |
Universal automated keratectomy apparatus and method
A surgical device for altering the curvature of an eye includes a base which carries a transparent insert, a drive device, a knife edge coupled to the drive device and movable to a plane...
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5690123 |
Method of altering the shape of the cornea
A device is provided to plastically change the shape of the cornea by application of a vacuum. The device has elongated openings that are connected to a vacuum pump. By placing the device on the...
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5683592 |
Surgical cutting tool
This invention concerns a method of fabricating a surgical cutting tool and a tool fabricated by such method. The surgical cutting tool (20) comprises a base (21) and an upstanding cutting blade...
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5674233 |
Ophthalmic surgical instrument and method
A corneal surgical instrument comprising a surgical knife and ultrasonic probe assembly (12) that measures the corneal thickness, monitors the positioning and perpendicularity of the knife (37) and...
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5662668 |
Blade for intrastromal radial keratotomy
The horizontal base of an L-shaped blade is inserted within an existing incision performed as part of a traditional radial keratotomy procedure to permit an intrastromal cut to be made to urge...
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5653723 |
Method and apparatus for performing keratotomy
A keratotomy apparatus that comprises a plurality of plates. One of the plates is kept on the eye during the keratotomy. The other plates support corneal thickness sensors and guides that enable...
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5653725 |
Instrument for initiating an intralamellar channel
The present invention provides a surgical technique and instrument kit that allows for subtle modification of the corneal curvature by interlamellar injection of a synthetic gel at the corneal...
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5651782 |
Method and apparatus for implanting an artificial meshwork in glaucoma surgery
A method and device which is used to insert an implant in order for treating an eye with glaucoma in order to lower the intraocular pressure of the eye. The implant is an artificial meshwork. The...
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5649943 |
Ophthalmic treatment apparatus and its use
An ophthalmic method and apparatus preferably for removing the relatively soft cellular epithelium from a predetermined region of the relatively hard fibrous cornea of the eye preparatory to...
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5649944 |
Apparatus for preparing cornea material for tabbed (sutureless) transplantation
A tool and a method for preparing a donor material used in sutureless corneal transplants uses a first cutting portion to prepare a donor blank having tabbed portions extending outwardly radially....
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5645582 |
Overlapping ring device for corneal curvature adjustment
The intrastromal corneal ring (ICR) (47) of the invention has a flexible, preferably circular body sized and configured such that it can be inserted into a human eye and comprised of a material...
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5645550 |
Method and apparatus for providing precise location of points on the eye
A method and apparatus for providing more precise aiming by an eye tracking system, including a registration, or aiming, laser, that provides for precise location of where the next laser ablation...
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5643299 |
Hydrojet apparatus for refractive surgery
Apparatus for supporting and guiding the movement of a high speed liquid jet for ophthalmic incisions includes a fixture for removably securing the device with respect to the apex of the cornea....
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5634918 |
Ophthalmic surgical instrument
An ophthalmic surgical instrument operates a tool such as a scissors, a forceps or a knife. The instrument has an actuator with a generally cylindrical actuation surface; the actuator is operated...
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5632757 |
Trephine device for removing anterior epithelial cells from corneal surface
A trephine device for at least partially removing a section of the anterior epithelial cells from a corneal surface, typically prior to laser excimer reshaping of a portion of the corneal surface,...
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5626594 |
Keratoscopic surgical instrument for making radial and arcuate corneal incisions
An incision guide instrument for radial keratotomy has a lens positionable over a cornea, containing an incision guide slot adjacent to which is disposed two mirror surfaces within the lens. The...
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5620453 |
Surgical knife with retractable blade and depth of cut control
A surgical knife for use in ophthalmic surgery includes a bladeholder assembly holding a surgical cutting blade, with the bladeholder assembly sliding into and out of a hollow knife handle, and a...
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5618292 |
Corneal drape or template for performing a radial-keratotomy procedure
A template of flexible material that is so fenestrated or otherwise configured as to be self-adherent to the cornea and to readily conform to the curvature of the cornea, the template being further...
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5611805 |
Method and device for determining placement of keratotomy incisions
A keratotomy incision is formed in a cornea by manipulating an RK knife so that its blade extends a preselected depth into a point on the cornea. Sufficient force is applied by a surgeon's fingers...
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5595570 |
Keratome with spring loaded adjustable plate, cutting length adjustment plate, method of cutting a corneal flap, and gauge-mounted bracket for adjusting plate on keratome head
A cutting length adjustment plate for a keratome that allows for a pre-cutting measurement of a corneal cut has a transverse groove adapted to receive a keratome, a parallel aperture in the groove...
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RE35421 |
Automatic corneal shaper
The invention relates to a mechanical device for performing automatic lamellar corneal resections, in particular, myopic keratomileusis-in-situ and Hyperopic Lamellar Keratotomy. The device...
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