Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6099541 | Surgical microtomes Methods and apparatus are disclosed for removal of biological tissue slices or layers, preferably in the form of lamellar sections of predetermined shape and thickness employing a reference member that engages a target tissue site and cooperates with a cu... | 08/08/2000 |
| 6063072 | Methods and systems for correction of hyperopia and/or astigmatism using ablative radiation Methods and apparatus for corneal reprofiling are disclosed in which a beam-swapping assembly is employed to redirect rays of ablative radiation passing through the assembly. Essentially, the beam-swapping assembly turns the beam profile "inside out" redi... | 05/16/2000 |
| 6056739 | Profiling the intensity distribution of optical beams A beam profiler comprising: an intensity modifier constructed and arranged to separately modify the intensity profile of different subbeam portions of an initial beam to thereby create respective subbeams each having a respective predetermined modificatio... | 05/02/2000 |
| 6030398 | Surgical microtomes Methods and apparatus are disclosed for removal of biological tissue slices or layers, preferably in the form of lamellar sections of predetermined shape and thickness employing a reference member that engages a target tissue site and cooperates with a cu... | 02/29/2000 |
| 5993441 | Control of photorefractive keratectomy A method and system are described for performing photorefractive keratectomy procedure employing pulses of photoablative radiation to selectively ablate corneal tissue of a patient's eye in an ablation zone on the anterior corneal surface to produce a des... | 11/30/1999 |
| 5772656 | Calibration apparatus for laser ablative systems A calibration apparatus is disclosed for measuring the properties of a laser beam. The apparatus includes a photoreactive element having a composition which reacts with laser radiation in a manner proportional to the intensity or intensity profile of the ... | 06/30/1998 |
| 5651784 | Rotatable aperture apparatus and methods for selective photoablation of surfaces Apparatus and methods to modify the intensity distribution of a beam of radiation, such as a laser, and for eroding surfaces with predetermined shapes. A rotatable mask is formed with one or more apertures that have a geometric spiral shape originating su... | 07/29/1997 |
| 5613965 | Corneal reprofiling using an annular beam of ablative radiation Methods and systems are disclosed for corneal reprofiling employing an annular beam of ablative radiation to correct refractive errors in vision, and/or create "blend zones" in order to reduce any surface discontinuities on the cornea following hyperopia-... | 03/25/1997 |
| 5521657 | Method and system for topographic measurement by measuring the distance between a rigid reference member and a surface of an eye The invention is a system and method of measuring the shape of a surface. The corneal topographer specifically shown comprises a rigid reference member having a reference surface of a predetermined shape applied to the surface of the eye. The shape of the... | 05/28/1996 |
| 5505723 | Photo-refractive keratectomy Methods and apparatus as disclosed for shaping the cornea of a patient's eye such that the epithelial tissue of the patient's cornea is shaped into a preliminary shape, corresponding to a desired final stromal shape, using photoablative radiation, and the... | 04/09/1996 |
| 5461212 | Astigmatic laser ablation of surfaces Laser surface ablation methods and apparatus are disclosed reprofiling surfaces astigmatically. An optical system includes cylindrically-powered elements to form an elliptical laser irradiation pattern on a target surface. By successively altering the are... | 10/24/1995 |
| 5423801 | Laser corneal surgery A method and system for reshaping Bowman's membrane, which lies directly below the anterior epithelial surface of the cornea, to provide correction of refractive errors in the eye by photoablation of selective regions of the Bowman's membrane without subs... | 06/13/1995 |
| 5411501 | Laser reprofiling system for correction of astigmatisms Apparatus and methods are disclosed for astigmatically ablating surfaces in order to impart new profiles and curvatures to such surfaces. A laser means, e.g., a rapidly pulsed laser radiation source, is aligned with a surface to provide photoablative puls... | 05/02/1995 |
| 5395356 | Correction of presbyopia by photorefractive keratectomy Methods and apparatus are disclosed for the correction of presbyopia by reprofiling the cornea to create at least one region having a different focal point, and thereby assist the eye in accommodating for close-viewing conditions. According to the inventi... | 03/07/1995 |
| 5395362 | Methods and apparatus for distributing laser radiation Apparatus and methods are disclosed for distributing and delivering laser radiation with substantially uniform intensity to multi-spatial locations. Laser radiation is directed into a fiber optic waveguide which homogenizes the spatial intensity of the la... | 03/07/1995 |
| 5360424 | Tracking system for laser surgery Systems and methods are disclosed for aligning and confining laser beam exposure to a defined target region of biological tissue during laser surgery by employing a floating lens which is mechanically coupled to a reference element, such as a target tissu... | 11/01/1994 |
| 5334190 | Laser thermokeratoplasty methods and apparatus Methods and apparatus for correction of optical defects in vision, employing an infrared radiation source and a focusing element, for changing the curvature of the eye by application of focused infrared radiation into the collagenous tissue of the cornea ... | 08/02/1994 |
| 5324281 | Laser reprofiling system employing a photodecomposable mask A laser system for reprofiling a surface, such as the corneal surface of an eye, comprising a laser and a photoreactive mask disposed between the laser means and the surface for providing a predefined profile of resistance to laser radiation, such that, u... | 06/28/1994 |
| 5312330 | Medical treatment of the eye involving removal of the epithelium A method and device for lifting the epithelium from a selected area of the eye using an incision instrument for cutting the epithelium to define an area of the epithelium to be removed, and a fluid jet assembly for separating the selected area of the epit... | 05/17/1994 |
| 5296514 | Corneal treatment agents Aliphatic alcohols are disclosed for promoting corneal healing following injury to the eye. Such compositions ameliorate corneal discomfort, alleviate visual artifacts, and/or reduce irritation caused by the eye injury. The compositions also promote the r... | 03/22/1994 |
| 5230334 | Method and apparatus for generating localized hyperthermia Ultrasound generating methods and apparatus are disclosed for producing controlled, localized hyperthermia in a selected heating zone of human tissue, utilizing at least one ultrasound transducer, preferably driven by sinusoidal excitation signals in a co... | 07/27/1993 |
| 5214071 | Corneal treatment agents Aliphatic alcohols are disclosed for the treatment of discomfort and visual artifacts following laser surgical procedures on the cornea of the eye. Such compositions reduce the inflammation associated with photorefractive keratectomy and promote the regro... | 05/25/1993 |
| 5200970 | Methods and compositions for protecting laser excitation gases from contamination Plastic or polymeric materials can be rendered substantially more practical for use in gas laser systems, and the problem of gas contamination due to outgassing of volatile materials can be significantly reduced by coating the polymeric elements with a th... | 04/06/1993 |
| 5196006 | Method and apparatus for excision endpoint control Methods and apparatus for determining the depth of excision generated by a material removal process, for determining the thickness of unablated material below the excision or incision, and for providing endpoint control of a material removal process utili... | 03/23/1993 |
| 5109465 | Beam homogenizer Disclosed is an apparatus and method for the modifying the intensity profile of radiant energy beam or reducing its spatial coherence, especially that produced by a laser. The apparatus includes a waveguide having a light reflecting surface including a su... | 04/28/1992 |
| 5098896 | Corneal treatment agents Aliphatic alcohols are disclosed for the treatment of discomfort and visual artifacts following laser surgical procedures on the cornea of the eye. Such compositions reduce the inflammation associated with photorefractive keratectomy and promote the regro... | 03/24/1992 |
| 5043636 | High voltage switch The present invention encompasses a high voltage switch utilizing first and second terminal electrodes and an intermediate electrode disposed therebetween. A high voltage pulse, applied to the intermediate electrode, initiates sequential overvoltaging of ... | 08/27/1991 |
| 5019074 | Laser reprofiling system employing an erodable mask A laser system for reprofiling a surface comprising a laser and an erodable mask disposed between the laser means and the surface for providing a predefined profile of resistance to erosion by laser radiation, and control for controlling the laser such th... | 05/28/1991 |
