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| Number | Title | Issue Date |
| 5123902 | Method and apparatus for performing surgery on tissue wherein a laser beam is applied to the tissue Surgical procedures on biological tissue are carried out with the aid of a laser with substances being applied to the tissue before or during the treatment and these substances are absorbent in the range of the wavelength of the laser beam. A surgical man... | 06/23/1992 |
| 5092865 | Optical fiber fault detector A control apparatus for a pumped rod-type laser includes an arc lamp disposed to illuminate the lasing medium, such as a NdYAG crystalline rod. The apparatus includes a full wave rectifier to power the arc lamp, and a MOSFET switching circuit to turn on a... | 03/03/1992 |
| 5090203 | Air and fuel supply control systems for internal combustion engines An air and fuel supply control system for an internal combustion engine comprises a plurality of superchargers including a turbosupercharger, an intake air cutoff valve operative selectively to be open and closed respectively for opening and closing one o... | 02/25/1992 |
| 5071417 | Laser fusion of biological materials Apparatus and methods for laser fusion of biological structures are disclosed employing a laser for delivery of a beam of laser radiation to an anastomotic site, together with a reflectance sensor for measuring light reflected from the site and a controll... | 12/10/1991 |
| 5057102 | Contrast adjustor for aiming laser A laser treatment apparatus is to treat a site of disease of a patient with a laser beam. The laser treatment apparatus contains a source of illumination light for irradiating a site of treatment of the patient and a site around the site of treatment with... | 10/15/1991 |
| 5057099 | Method for laser surgery A method for carrying out surgical procedures using a laser and a laser surgical tool includes the provision of a temperature control device associated with the laser which monitors the temperature of the surgical tool and delivery system and governs the ... | 10/15/1991 |
| 5035693 | Device for selective destruction of cells Apparatus for selective destruction or inactivation of cells is disclosed wherein cells are arrayed in a plane for successive illumination, by optical X-Y scanning devices, with a first low power red light beam to produce in particular cells certain radia... | 07/30/1991 |
| 5002051 | Method for closing tissue wounds using radiative energy beams The method and apparatus of the invention use a beam of laser emitted optical energy to effect wound closure and reconstruction of biological tissue. In response to input as to tissue type and thickness, a computer determines the output power, exposure ti... | 03/26/1991 |
| 4994059 | Laser catheter feedback system A control system for a laser catheter device wherein the control system is provided with means for determining the intensity of laser beam energy at two points, one of which is at the distal tip end thereof, and with the other being interposed along a tra... | 02/19/1991 |
| 4950268 | Laser driver and control circuit A control apparatus for a pumped rod-type laser includes an arc lamp disposed to illuminate the lasing medium, such as a NdYAG crystalline rod. The apparatus includes a full wave rectifier to power the arc lamp, and a MOSFET switching circuit to turn on a... | 08/21/1990 |
| 4950267 | Laser beam treatment device for an endoscope A laser beam irradiation apparatus comprising a laser generating device, a laser beam irradiation probe for applying a laser beam from the laser generating device to a region of an object of irradiation, an ultrasonic transmitter/receiver for emitting ult... | 08/21/1990 |
| 4941093 | Surface erosion using lasers Laser apparatus for eroding a surface comprises means to select and control the shape and size of the area irradiated by each pulse of laser energy without varying the energy density of the beam. By varying the size of the irradiated area between pulses, ... | 07/10/1990 |
| 4903695 | Method and apparatus for performing a keratomileusis or the like operation A conventional keratomileusis procedure is modified to the extent that a controlled tissue-ablating laser radiation is applied solely to the freshly cut part of the cornea that is left after severing the lenticle, the radiation being so controlled and cha... | 02/27/1990 |
| 4883054 | Optical fiber break detector An apparatus for detecting a break in an optical fiber adapted for carrying optical energy such laser energy. The optical fiber has a core, a cladding concentric with and surrounding the core and a sheath concentric with and surrounding the cladding. A de... | 11/28/1989 |
| 4854320 | Laser healing method and apparatus The method and apparatus of the invention use a beam of laser emitted optical energy to effect wound closure and reconstruction of biological tissue. In response to input as to tissue type and thickness, a computer determines the output power, exposure ti... | 08/08/1989 |
| 4788975 | Control system and method for improved laser angioplasty A control system and method for laser angioplasty or laser ablation or welding of tissue in general, in which firing of a laser catheter is correlated with movement of a vessel or other body chamber carrying the laser catheter, whereby the laser is fired ... | 12/06/1988 |
| 4741612 | Device for performing a photocoagulation operation on a biological tissue, especially on the fundus of an eye A control system for use with a conventional photocoagulation device for controlling the exposure parameters of irradiation of biological tissue, such as the fundus of an eye. The photocoagulation device includes a source of radiation, a means for initiat... | 05/03/1988 |
| 4737628 | Method and system for controlled and selective removal of material A method and apparatus for controlling the removal of unwanted material from a site wherein there are present other materials utilizes pulses of high intensity radiant energy such as a laser beam. The control is accomplished by illuminating the site, with... | 04/12/1988 |
| 4733400 | Safety shutdown system for a dye laser A control system for a dye laser is described, in which a pump pumps the dye from a supply vessel into a pressure vessel, in which there is an air pocket for damping vibrations, fluctuations in the pump delivery, etc. The dye passes out of the supply vess... | 03/22/1988 |
| 4695697 | Fiber tip monitoring and protection assembly A control system for an optical fiber laser power delivery system wherein the system employs a tip assembly for the optical fibers which provide focusing and beam divergence, mechanical protection for the optical fibers, and in addition functions as the s... | 09/22/1987 |
| 4692924 | Laser treatment apparatus A laser treatment apparatus for determining that the output power of a treatment laser beam is proper in accordance with the selected output power. The treatment apparatus comprises a laser source for generating a treatment laser pulse beam, a laser optic... | 09/08/1987 |
| 4672963 | Apparatus and method for computer controlled laser surgery A surgical system for destroying unwanted internal structures including a laser device, an ultrasonic probe and a computer system is described. The ultrasonic probe provides data signals that are processed by the computer system to provide an image of the... | 06/16/1987 |
| 4669467 | Mode mixer for a laser catheter A mode mixer is described for mixing themodes of optical fibers in a laser catheter adapted to be inserted in arteries for treatment of arterial tissue or obstructions. The mode mixer creates microbends in the fibers by physically deforming the fibers, su... | 06/02/1987 |
| 4648892 | Method for making optical shield for a laser catheter A method of forming an optical shield for a laser catheter is disclosed in which a rod of light transmissive material is optically polished and inserted into a tube of similar material and fused and the distal end of the rod is cut and the assembly is opt... | 03/10/1987 |
| 4648400 | Ophthalmic surgery system An ophthalmic surgery system (10) for performing corneal keratotomies and resectomies utilizes a light source (12) which generates a pulsed beam in the ultraviolet/vacuum ultraviolet region. The beam is received by a sealed base unit (16) and attached rot... | 03/10/1987 |
| 4644948 | Apparatus for dose measurement upon photocoagulation in the fundus of the eye For determining the proper dose of therapy radiation for photocoagulation at the fundus of the eye, the fluorescent radiation excited by the therapy radiation (laser light) in the fundus of the eye is utilized. The fluorescence intensity passes through a ... | 02/24/1987 |
| 4641650 | Probe-and-fire lasers Method and apparatus of irradiating a treatment area within a body includes introducing elongated flexible radiation transfer conduit (fiberoptic arrays) into the body cavity with the distal end thereof operatively opposite the treatment area. At the othe... | 02/10/1987 |
| 4612938 | Method for illuminating cavities The present invention relates to a method and apparatus for the uniform and simultaneous illumination by means of radiation of the interior surfaces of cavities for the purpose of observation and/or irradiation. In particular, such cavities may be not onl... | 09/23/1986 |
| 4580557 | Surgical laser system with multiple output devices A surgical laser system includes a laser, interchangeable peripheral output devices, a sensor effective to sense the power output of a peripheral device coupled to the sensor, and a control circuit for calibrating the radiation output of each device, inte... | 04/08/1986 |
| 4579430 | Method and apparatus for forming an image of the ocular fundus In contrast to techniques currently used such as the fundus camera, the strain to which the patient is exposed during the generation of an image of the ocular fundus is reduced by moving a laser beam across the retina in the form of a scanning raster and ... | 04/01/1986 |
| 4564012 | Laser surgical equipment In a laser surgical equipment consisting of a laser oscillator oscillating a laser output, an optical waveguide connected to the laser oscillator and transmitting the laser output and a hand piece connected to the optical waveguide and radiating the laser... | 01/14/1986 |
| 4543477 | Safety device for detecting trouble in optical transmission fibers A safety device for detecting troubles in an optical transmission fiber of a medical laser application to prevent accidents characterized by using either a laser light reflector from the exit end surface of the fiber or a secondary light. When trouble is ... | 09/24/1985 |
| 4476512 | Monitor device for laser systems transmitting laser light through optical fibers A monitor device for use in a laser system transmitting laser light through an optical fiber includes a heat-sensitive element which produces an output to monitor the laser system, the element being provided in a predetermined area of the fiber.... | 10/09/1984 |
| 4438765 | Motion sensitive firable device A motion sensitive firable device includes an opthomological laser for firing at an eye, switching means for activating the laser and motion detector means interconnecting the switching means and the laser for preventing the switching means from activting... | 03/27/1984 |
| 4316467 | Control for laser hemangioma treatment system A laser for directing a nominally 5 micron wavelength beam at a hemangioma or other variegated lesion. A fiber optic bundle for intercepting radiation reflected from the lesion at an intensity corresponding with the color intensity of the region at which ... | 02/23/1982 |
| 4311142 | Device for detecting a leak of laser The present invention discloses a device for detecting a laser leak for electrically detecting a leakage of laser beam due to snapping of the laser guide which is provided for guiding the laser beam to a desired position. A wire or a conductor which is co... | 01/19/1982 |
| 4273127 | Method for cutting and coagulating tissue Laser radiation is coupled to an optical instrument having a relatively narrow working edge from which the radiation is emitted in a relatively narrow zone of intense radiation leakage. The working edge is placed in contact with vascularized tissues, and ... | 06/16/1981 |
| 4240431 | Laser knife A laser knife includes a tubular member adapted to be inserted into the coeloma by being inserted into the forceps channel of an endoscope, a pair of oppositely located laser radiation emitter and acceptor members on the distal end of the tubular member, ... | 12/23/1980 |
| 4126136 | Photocoagulating scalpel system A Photocoagulating scalpel system including a scalpel having a sharp, transparent blade for forming an incision, and a laser optically coupled to the blade for coagulating blood adjacent the incision. Laser radiation is transported to the blade through a ... | 11/21/1978 |
