Light Pipe Applicator Patents (Class 607/93)
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Patent number: 7686839Abstract: Phototherapy treatment devices include a light emitter that is adapted to be placed in close proximity to a wound for applying light/heat energy to the wound to aid in the healing process. The light emitter may comprise a light guide that receives light from a light source or a light source that is affixed to a substrate used to position the light source over the wound.Type: GrantFiled: January 26, 2005Date of Patent: March 30, 2010Assignee: Lumitex, Inc.Inventor: Jeffery R. Parker
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Publication number: 20100042188Abstract: The portable electronic device comprises radiation means (104A, 104B) for directing optical radiation energy non-invasively at intracranial nerve tissue of a user through an external auditory canal of the user of the portable electronic device to stimulate the user's intracranial nerve tissue. Stimulation may have a metabolic and/or nervous response, which appears as a change in alertness, diurnal rhythm and in concentrations of several hormones and brain transmitters.Type: ApplicationFiled: September 5, 2007Publication date: February 18, 2010Inventors: Juuso Nissila, Antti Aunio
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Publication number: 20090198173Abstract: An ambulatory device for use in therapeutic and/or cosmetic treatment has a localised light source such as an LED (e.g. 6; 19; 46; 119; 219). Light from the source is output through an output surface which, in use, covers the area to be treated, and light is distributed over that surface by means of a diffusing member (e.g. 14; 114; 214) of which the output surface may form an integral part.Type: ApplicationFiled: April 26, 2007Publication date: August 6, 2009Applicant: Lumicure LimitedInventors: Ifor David William Samuel, James Ferguson, Andrew Paul McNeill
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Publication number: 20090099628Abstract: Phototherapy devices for phototherapy treatment of a patient include a light emitter for emitting light received from a light source. Means may be provided for increasing the amount of power to the light source in response to a decrease in light output to maintain a substantially constant light output. The light source may be inside a housing and bonded to a heat sink attached to the back side of the housing to dissipate excess heat generated by the light source. Also the light source may comprise at least one LED that generates blue light output bands and at least one other LED that generates other color light output bands that are selectively mixed with the blue light output bands.Type: ApplicationFiled: December 22, 2008Publication date: April 16, 2009Inventor: Jeffrey B. Williams
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Publication number: 20080262576Abstract: Embodiments of somatic cell treatment are described generally herein. Other embodiments may be described and claimed.Type: ApplicationFiled: April 21, 2008Publication date: October 23, 2008Inventors: Alan Austin Creamer, Gerald McLaughlin
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Patent number: 7422599Abstract: A device for providing light, preferably UV light to infants and/or children. The device comprises a housing, inside the housing are one or more light sources adapted to emit light at a therapeutic wavelength or wavelengths. A series of apertures in the housing are adapted to align a plurality of light guides with the light source(s). The light guides conduct light to the patient. The light guides are preferably attached to a light guide holding element. The holding element is preferably a panel which is adjustably placed above the patient. The light guides can either provide light directly to the patient or the panel can be the light providing surface.Type: GrantFiled: May 27, 2005Date of Patent: September 9, 2008Inventor: Thomas Perez
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Patent number: 7422598Abstract: Oral phototherapy applicators are disclosed that are sized and shaped so as to fit at least partially in a user's mouth and have at least one radiation emitter coupled to an apparatus body to irradiate a portion of the oral cavity with phototherapeutic radiation in at least two separate spectral bands. In one embodiment, the spectral bands are distinct. In another, the bands overlap but provide different therapeutic effects. The apparatus can further include bristles to provide a phototherapeutic toothbrush. Alternatively, the apparatus body can be adapted for placement in a fixed position relative to the oral cavity during phototherapy.Type: GrantFiled: February 10, 2004Date of Patent: September 9, 2008Assignee: Palomar Medical Technologies, Inc.Inventors: Gregory B. Altshuler, Valery V. Tuchin
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Publication number: 20080154344Abstract: A method for treating benign prostatic hyperplasia using a laser is provided. The method includes emitting, in proximity to prostatic tissue, laser light at a wavelength that is controlled to be within at least one of (i) a range between about 1275 nm and about 1475 nm or (ii) a range between about 1830 nm and about 2010 nm. The wavelength is selected to have a higher absorption by water than laser light at a wavelength of 830 nm and a lower absorption by hemoglobin than laser light at the wavelength of 830 nm. Emission of the laser light is controlled such that the prostatic tissue is heated to a temperature of less than about 100° C. to coagulate the prostatic tissue.Type: ApplicationFiled: December 22, 2006Publication date: June 26, 2008Inventors: Robert M. Trusty, Victor C. Esch, Richard Rox Anderson
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Publication number: 20080154345Abstract: Methods of advancing a laser catheter across an occlusion are described. They may include the steps of advancing a guidewire through a first proximal lumen and a distal lumen of the catheter into a first region of the occlusion, retracting the guidewire from the distal lumen, and advancing a diagnostic device from a second proximal lumen of the catheter to examine the occlusion. The methods may also include retracting the diagnostic device from the distal lumen and advancing the guidewire through the distal lumen. The laser catheter may be activated to create a lumen through the occlusion.Type: ApplicationFiled: December 26, 2006Publication date: June 26, 2008Applicant: SpectraneticsInventor: Kevin D. Taylor
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Publication number: 20080147150Abstract: A medical laser device comprises the laser sources, output ports, a group of optic fibers and a laser beam spatial distribution apparatus. Wherein the device has at least two optic fibers or optic fiber cores to transmit the laser energy from the laser sources to the distal end and a spatial distribution of the laser beams are shaped with the help of apparatus of inclined optic fiber terminations and mechanical means. This medical laser device can resects unwanted material in body lumen piece by piece.Type: ApplicationFiled: December 19, 2006Publication date: June 19, 2008Inventors: Zhenhong Xiong, Shaorui Du, Ruwang Li, Guangtao Yao
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Publication number: 20080058908Abstract: Provided herein are methods and compositions useful for the treatment of periodontal disease exploiting optical and thermal emissions of near-infrared laser systems and fibers in order to target chromophore-stained biofilm while minimizing damage to healthy tissues.Type: ApplicationFiled: October 8, 2004Publication date: March 6, 2008Inventor: Eric Bornstein
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Patent number: 7298536Abstract: A fiber optic wafer probe that includes a fibre optic cable for approaching a device under test.Type: GrantFiled: September 7, 2005Date of Patent: November 20, 2007Assignee: Cascade Microtech, Inc.Inventors: Peter R. McCann, John T. Martin
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Patent number: 7177695Abstract: A device and method is disclosed for the treatment of early stage wounds, i.e. those wounds that have resulted in little or no breach of the skin tissue. The invention utilizes non-ablative laser or non-coherent electromagnetic radiation applied to a stage one or two wound to stimulate wound healing, destroy viral and bacterial bodies, and prevent the development of such wounds into higher stage wounds. An appropriate wavelength is chosen from the range of 193 nm to 10.6 microns, and is delivered at a power density of about at least 1 W/cm2 over a predetermined treatment duration typically in the range of 1 second to 3 minutes. To achieve the desired energy density, radiation is typically delivered at a power between 1 Watt and 15 Watts, with an average power of 5–10 Watts. Early stage wounds that can be addressed with this invention include but are not limited to spider or other insect bites, bee stings, rashes, eczema, psoriasis, and poison ivy.Type: GrantFiled: December 17, 2001Date of Patent: February 13, 2007Assignee: CefamOptec Industries, Inc.Inventor: Kelly Moran
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Patent number: 7006749Abstract: A laser system is provided that includes a laser unit, an incoupling means for coupling the laser radiation into a light-guide, and an outcoupling means for coupling the laser radiation out from the light-guide. A data transmitting means is coupled to the incoupling means or outcoupling means and produces optical signals which are coupled into the light-guide via the incoupling means or the outcoupling means. These optical signals are received by a data receiving means at the other end of the light-guide. The laser system can be used for realizing a data communication between the hand-piece and the stationary unit of the laser system in the case of which additional cables between the hand-piece and the laser are not necessary for transmitting data.Type: GrantFiled: August 7, 2003Date of Patent: February 28, 2006Assignee: Dornier MedTech Laser GmbHInventors: Wolfgang Illich, Jürgen Austen, Werner Hiereth
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Patent number: 6970634Abstract: A fiber optic wafer probe that includes a fiber optic cable for approaching a device under test.Type: GrantFiled: May 4, 2001Date of Patent: November 29, 2005Assignee: Cascade Microtech, Inc.Inventors: Peter R. McCann, John T. Martin
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Patent number: 6951558Abstract: A scanning optical system for delivering electromagnetic radiation onto tissue to be treated is cooperative with a lightguide or optical fiber. Radiation to be delivered is provided by a source thereof via the optical fiber. The optical system includes an optical projection arrangement comprising a plurality of lenses cooperatively arranged with the lightguide. A first of the lenses is arranged to receive radiation emerging from the lightguide. The beam of radiation is passed through the projection arrangement to form a treatment spot the radiation on the tissue. Scanning is effected by causing relative motion between the exit-end of said lightguide and at least the first lens, transverse to the optical axis of the projection arrangement. The treatment spot undergoes a related transverse motion over the tissue. In one example scanning is effected by moving the first lens with the lightguide fixed. The first lens is moved using an arrangement of piezo-electric actuators.Type: GrantFiled: January 30, 2003Date of Patent: October 4, 2005Assignee: Lumenis Inc.Inventors: David G. Angeley, Dan E. Andersen, Philip S. James, R. Russel Austin
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Publication number: 20040093044Abstract: The present invention provides improved light delivery catheters for use in therapeutic methods, such as PDT, that require illumination of target tissue within a blood vessel or other hollow body organ. An improved catheter comprises a catheter shaft having a light treatment zone at its distal end. A light guide, such as an optical fiber, in the catheter shaft transmits light from a light source at the proximal end of the catheter shaft to the light treatment zone. An occlusion balloon is positioned on the distal end of the catheter shaft adjacent to the light treatment zone. An inflation lumen in the catheter shaft, and in fluid communication with the balloon, delivers fluid from an inflation fluid source at the proximal end of the catheter shaft to the balloon. An infusion lumen in the catheter shaft delivers infusion fluid from an infusion fluid source at the proximal end of the catheter shaft to the light treatment zone.Type: ApplicationFiled: August 5, 2003Publication date: May 13, 2004Inventors: Steven J. Rychnovsky, John A. Franco, Jeffrey A. Vasek, C.T. Lo Blong, John S. Hill
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Publication number: 20040002744Abstract: A radiation device for therapeutic use in the human body allows the application of light waves to an affected area the body. A bulb, preferably a xenon bulb, produces light which is passed through a lens module having silicon and carbon granules therein. By applying different lenses to the device, a variation in the wavelength of light and radiation applied to an area is achieved. Each lens corresponds to a Shakra energy center. The device has a pistol-like housing to allow for controlled application of the radiation.Type: ApplicationFiled: June 27, 2002Publication date: January 1, 2004Inventor: Thomas E. Dungan
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Publication number: 20030233138Abstract: The present invention generally provides improved therapeutic light sources and methods for their use. The invention also provides novel methods for fabricating therapeutic light sources. The present invention generally makes use of light emitting diodes (LEDs), and provides higher intensity therapeutic light than has previously been available with light emitting diode systems.Type: ApplicationFiled: June 12, 2002Publication date: December 18, 2003Applicant: Altus Medical, Inc.Inventor: Greg Spooner
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Patent number: 6660025Abstract: A tanning bed has an array of closely spaced ultraviolet-emitting, fluorescent lamps in which each lamp is longitudinally offset from an adjacent lamp to allow space for grasping of one end to rotate the lamp for removal of the lamp from its sockets.Type: GrantFiled: September 21, 2001Date of Patent: December 9, 2003Assignee: Spectrum Products, Inc.Inventors: Michael Wayne Versemann, Gary Weiler
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Patent number: 6607526Abstract: A laser irradiation apparatus comprising: a long and slender main body 101; an optical fiber 107, which is placed inside the main body 101 and which is equipped with a proximal end through which a laser ray is introduced and an emitting part from which the laser ray is emitted sideways or diagonally; and a reflecting member 151, which is affixed inside said main body 101 and reflects laser ray emitted from the optical fiber 107. The emitting part of the optical fiber 107 is capable of making a reciprocating motion in the lengthwise direction inside the main body 101 within the specified range. The reflecting member 151 has a reflecting surface 152 that changes its reflecting angle as the emitting part of the optical fiber 107 moves along its reciprocating movement range.Type: GrantFiled: October 25, 2000Date of Patent: August 19, 2003Assignee: Terumo Kabushiki KaishaInventor: Shin Maki
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Patent number: 6599287Abstract: An energy irradiation apparatus for medical treatment of tissues through irradiation of energy including a long main unit, an emitting part, a power transmission member, a drive mechanism, a first engaging member, and a second engaging is disclosed. The emitting part is disposed moveably inside a distal end of the main unit for emitting energy transmitted to a distal side from a proximal side. The power transmission member is disposed moveable inside the main unit. The emitting part is mounted to a distal end of the power transmission member. The drive mechanism reciprocates the power transmission member in a longitudinal direction of the main unit. The first engaging member is provided inside the power transmission member for receiving a drive force from the drive mechanism. The second engaging member is provided in the drive mechanism for engaging removably with the first engaging member.Type: GrantFiled: July 2, 2001Date of Patent: July 29, 2003Assignee: Terumo Kabushiki KaishaInventors: Shigenobu Iwahashi, Shin Maki, Akira Sakaguchi
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Publication number: 20030060861Abstract: A tanning bed has an array of closely spaced ultraviolet-emitting, fluorescent lamps in which each lamp is longitudinally offset from an adjacent lamp to allow space for grasping of one end to rotate the lamp for removal of the lamp from its sockets.Type: ApplicationFiled: September 21, 2001Publication date: March 27, 2003Inventors: Michael Wayne Versemann, Gary Weiler
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Patent number: 6488696Abstract: The present invention comprises an assembly for the single-hand manipulation of a light treatment device and a chilled air supply on a skin light-treatment site. The assembly comprises an elongated frame member having a first end and a second end. The frame member also has an upper portion and a lower portion, the upper portion having an elongated channel therealong for receipt of a light emitting optics for emitting a light beam therefrom. The lower portion has a bore extending therethrough for passage of chilled air from a chilled air source. The bore may be arranged to direct chilled air at an angle with respect to the light beam to chill the site. The assembly includes a handpiece tip member arranged at the second end of the frame assembly and maybe integral therewith. A flexible chilled air supply hose made of light weight foam material and reinforced with an expandable sleeve member connects a refrigeration unit to the frame assembly.Type: GrantFiled: September 20, 1999Date of Patent: December 3, 2002Assignee: Cynosure, Inc.Inventors: George Cho, Anthony P Burns, Roger P. Veilleux
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Patent number: 6488697Abstract: The controller 6 in the apparatus 10 for thermotherapy automatically computes the power P of the laser beam and the flow volume Q of the refrigerant forwarded to the main body 110 as the therapeutic conditions required for effecting the thermotherapy. The controller 6 delivers control signals to the laser beam generating device 2 and the refrigerant circulating device 4, depending on the therapeutic conditions obtained as described above. The therapeutic conditions thus set are displayed on the monitor 7 together with the input information introduced into the operating part 8. The controller 6 is further capable of automatically computing the therapeutic conditions required for effecting the thermotherapy based on the minimum distance d1 and the maximum distance d2 between the laser beam emitting terminal 111a, namely the surface of the surface layer 21, and the target site 30.Type: GrantFiled: July 12, 2000Date of Patent: December 3, 2002Assignee: Terumo Kabushiki KaishaInventors: Shigeki Ariura, Haruo Ishiyama, Michihiro Sugahara
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Patent number: 6464715Abstract: Disclosed is a phototherapy device for treating icterus in new-born patients, comprising a light box with at least one light source arranged in the box for illuminating the patient and a support for the patient to be placed upon which is at least partially transparent or tinted as to allow the light from the light box to expose the patient from below with respect to its direction of gravity, making it possible to expose areas having a high bilirubin concentration which tend to follow the direction of gravity.Type: GrantFiled: May 1, 2000Date of Patent: October 15, 2002Assignee: Medestime S.A.Inventors: Lucien Gysens, Marie Yvonne Wauters
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Patent number: 6454789Abstract: A patient portable photodynamic therapy device securable to a patient includes a lightweight rechargeable battery and a cold cathode fluorescent (CCF) tube powered thereby. The CCF tube is coupled in light channeling relation to a proximal portion of a biocompatible optical fiber, which includes a distal portion with an optional diffuser that uniformly distributes light as it exits the distal portion. The distal end of the optical fiber is optionally provided with an anchoring balloon that can be inflated after the optical fiber is properly positioned at a treatment site within a patient's body. The balloon securely lodges the distal portion within the tissue at the treatment site, and is deflated to facilitate the removal of the optical fiber once the treatment is complete.Type: GrantFiled: January 15, 1999Date of Patent: September 24, 2002Assignee: Light Science CorporationInventors: James Chen, Brian Wilkerson, Dave Brown, Darrin Huston, Mike McQuade
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Publication number: 20020128697Abstract: Disclosed herein catheters, assemblies comprising a single-lumen catheter having one or more sources of electromagnetic radiation disposed within the wall of said catheter. Methods of using these catheters and assemblies are also provided.Type: ApplicationFiled: March 6, 2001Publication date: September 12, 2002Inventor: Harold F. Carrison
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Patent number: 6235046Abstract: A device for the application of artificial light to a user's retina is disclosed. A light source leads to a light focusing member that generates a light stream at, at least one transmission angle, to the user's retina, preventing the light from coming in contact with the user's fovea. In one embodiment, the light focusing member is a light ring containing a plurality of apertures around an outer periphery with light exiting through the apertures in a plurality of streams at a transmission angle. A vision aperture within the light ring has a periphery less than the outer periphery and is on a direct axis with the user's fovea to enable the user to maintain vision during chronotherapy. The light source can be distanced from the light focusing member and connect by a light transfer member, such as a optic fiber. In another embodiment, the light focusing member can be the frame of a pair of eyeglasses having lenses to enable user vision.Type: GrantFiled: January 21, 1999Date of Patent: May 22, 2001Inventor: David W. Gerdt
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Patent number: 6217605Abstract: An arm device for retaining and positioning an optical fiber unit for medical examination and treatment, so as to easily operate the same. The arm device is provided with flexible arm parts and a lockable, rotatable joint assembly for easy manipulation and positioning of the optical fiber unit.Type: GrantFiled: February 23, 1999Date of Patent: April 17, 2001Assignee: Tokyo Iken Co., Ltd.Inventors: Hiroaki Kondo, Takemi Kobayashi
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Patent number: 6208788Abstract: Apparatus and methods for light activation of hardenable materials, such as filling materials located on dental surfaces, through fiber optic funnels coupled to light guides. Light generated by a light unit is directed through a light guide and then concentrated by a fiber optic funnel to direct concentrated light to hardenable materials. The fiber optic funnels comprises bundles of fiber optic strands. The fiber optic funnels are able to concentrate light according to their respective tapers. The fiber optic funnels are coupled to light guides by couplers which can be either rigid or elastomeric such that the couplers can be coupled with a specific light guide or conform to light guides having different diameters. A coupler can also enable a fiber optic funnel to pivot.Type: GrantFiled: July 29, 1998Date of Patent: March 27, 2001Assignee: Ultradent Products, Inc.Inventor: Vassiliy Nosov
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Patent number: 6200332Abstract: A device and method for underskin laser treatment that is minimally invasive, versatile and precise, that allows for underskin laser treatment with only minimal insertions into the area of treatment. For example, an entire area may be treated with one insertion. The device and method incorporates a standard insertion component making the system inexpensive and easy for doctors to use. In addition, the the invention allows users to get in direct contact with the treatment site, eliminating deleterious side effects encountered when treatment is administered to the skin surface. The device and method has applications in several areas of treatment. First, underskin treatment of aesthetic skin blemishes such as sagging and wrinkles can be performed with minimal external effects. Laser power is delivered directly beneath the skin, bypassing harmful exposure of the skin surface to the radiation.Type: GrantFiled: July 9, 1999Date of Patent: March 13, 2001Assignee: CeramOptec Industries, Inc.Inventor: Antonio Del Giglio
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Patent number: 6187030Abstract: A method for photodynamic treatment of diseases using a source of noncoherent light energy with filtering and focusing devices for producing radient energy in a broad bandwidth, the radient energy is transported to an area for disease treatment through a flexible fiber optic light guide. The light guide includes filtering and focusing devices in the light guide for selecting radient energy of a particular wavelength in order to photoactivate a specific theraputic disease treatment.Type: GrantFiled: October 5, 1998Date of Patent: February 13, 2001Assignee: MBG Technologies, Inc.Inventors: Mark B. Gart, Claudio Cesati
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Patent number: 6179830Abstract: In evaporation of an organic hard tissue, a damage of a light emitting face of an optical fiber composing a laser probe is suppressed. A laser light source 13 outputs pulsate laser light of a wavelength of 1.0 &mgr;m to 5.5 &mgr;m and an output energy of 1 mJ to 2,500 mJ. The laser light is guided to a contact type handpiece 15 via a waveguide 14. The operator makes a light emitting face 17 of an optical fiber 9 of a probe 16 which is detachably attached to the tip end of the handpiece 15 contact with the surface of an organic hard tissue. In the optical fiber 9, an intermediate layer exists between a core 25 and a clad 26. The refractive index of the intermediate layer is smaller than that of the clad. In the refractive index distribution of the core 25, the refractive index is increased as moving from the center axis to the periphery. The laser light guided to the handpiece 15 passes through the optical fiber 9 of the probe 16 and is then emitted from a light emitting face 17.Type: GrantFiled: July 22, 1997Date of Patent: January 30, 2001Assignee: J. Morita Manufacturing CorporationInventor: Shinji Kokubu
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Patent number: 6149672Abstract: A system including a device for the coherent amplification of electromagnetic oscillations by induced emission through a solid element, crystals or glasses doped with neodymium, semiconductor diodes or liquids or gases, and a cable or optical fiber cable for conducting the electromagnetic oscillations emerging from the device in order to influence a biological system, especially a human body or an animal body 11. The cable 2 has an outlet opening 7 and the oscillations or beams emerging from the cable 2 are conducted through a solid element, a mixture or a liquid or gaseous solution 8 in order to influence the biological system 11. The solid element, the mixture or the liquid or gaseous solutions contain mineral, plant, animal or human extracts or products or else toxins as admixtures.Type: GrantFiled: September 25, 1998Date of Patent: November 21, 2000Inventor: Thomas Ruschke
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Patent number: 6135996Abstract: A controlled advancement laser ablation device is provided for precise ablation of body matter. The laser ablation device includes a handle portion having proximal and distal openings and a fiber advancing device having a stationary member and a movable member. The movable member is movable towards and away from the stationary member. A fiber casing is included having proximal and distal ends. The distal end is secured to the proximal end of the handle portion and the proximal end is secured to the stationary member. At least one optical fiber is included having proximal and distal ends. The distal end is extendible through the handle portion and a portion of the fiber, defined between the proximal and distal ends, is secured to the movable member. A laser energy generator is optically connected to the proximal end of the optical fiber. The handle portion includes a self-biasing advancing mechanism.Type: GrantFiled: April 17, 1998Date of Patent: October 24, 2000Assignee: Baxter International, Inc.Inventors: Michael S. Kolesa, James Correia, Oleg Shikhman, Thomas J. Pacala, Barton C. Thompson
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Patent number: 6053180Abstract: The present invention provides an UV light-emitting source in or adjacent to the styling portion of a hair and/or animal fur care or styling appliance.The present invention incorporates an UV light emitting source into the hair styling appliance so that as the hair is being styled, the hair, the scalp as well as the appliance itself can be disinfected. Accordingly, while styling hair and/or fur, the present invention can facilitate the killing of micro-organisms including spores, virus, fungus, bacteria and lice residing on hair and/or fur as well as on the appliance itself.Type: GrantFiled: May 12, 1999Date of Patent: April 25, 2000Assignee: China Pacific Trade Ltd.Inventor: Koon-Chi Kwan
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Patent number: 6004315Abstract: An optical fiber device includes a polymeric optical fiber having a proximal end for coupling to a source of light, and a diffusing region. The polymeric optical fiber includes a core and a cladding around the core. The diffusing region includes a length of the polymeric optical fiber in which the cladding is partially removed to expose the core and in which the exposed core and the remaining cladding have a roughened surface for outwardly diffusing light carried through the polymeric optical fiber. The diffusing region is preferably formed by abrasion, for example by directing a particle jet at the optical fiber while rotating and translating the optical fiber with respect to the particle jet. The particle jet may include microscopic glass beads which roughen the optical fiber core. The density of scattering sites may be varied along the length of the diffusing region to produce a desired light output pattern.Type: GrantFiled: September 16, 1996Date of Patent: December 21, 1999Assignee: Focal, Inc.Inventor: Michael G. Dumont
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Patent number: 5989283Abstract: An irradiation device, especially for the cosmetic, diagnostic and therapeutic application of light, having an incoherent light source and a reflector that surrounds the light source and has a slit-like opening defining the direction of the radiation. Arranged in the beam path of the light source is a spectral dispersion element. In the output beam path of the spectral dispersion element, a fiber-optic cross-sectional transformer is disposed in such a way that its circular end is located opposite the spectral dispersion element. The fiber-optic cross-sectional transformer and the spectral dispersion element are movable relative to each other.Type: GrantFiled: September 25, 1997Date of Patent: November 23, 1999Assignee: Heinrike WilkensInventor: Jan Henrik Wilkens
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Patent number: 5908418Abstract: A hand held coagulating device exhibiting superior radiation transfer characteristics and providing a cooled handle for improved user comfort. An exemplary embodiment includes an outer shell housing internal components of the device and providing a surface at which a user of the device can hold the device during a surgical procedure. A contact element positioned in an opening in a forward end of the shell is placed against an area of tissue or blood to be coagulated, and radiation produced by a radiation source, such as an incandescent lamp, is transmitted through the contact element to the tissue or blood for an appropriate period of time. In one embodiment, a curved reflector is disposed near the radiation source to direct the radiation toward the contact element, and a conical collector is situated between the radiation source and the contact element to focus the radiation through the contact element.Type: GrantFiled: September 13, 1996Date of Patent: June 1, 1999Inventors: Douglas B. Dority, Morton J. Jensen
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Patent number: 5897551Abstract: A localized heat applying medical device is provided for applying heat to tissue adjacent a patient's tubal ostia in order to close the patient's fallopian tubes and sterilize the patient. Procedures of performing sterilizations are also disclosed.Type: GrantFiled: November 21, 1994Date of Patent: April 27, 1999Assignee: MyriadLase, Inc.Inventors: Royice B. Everett, Johnny M. Bruce
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Patent number: 5860968Abstract: A laser scanning method and apparatus having a scanning hand piece 18 connected at the free end 20 of a hollow wave guide 14 to scan a beam of laser energy 22 in a predetermined pattern to uniformly ablate in an enlarged target area. The hand piece 18 includes a hollow shaft motor 40 having a conduit mounted therein for conducting the beam of laser energy 22. The conduit 54 has a proximal end 56 in axial alignment with the longitudinal axis 60 of the hollow shaft 48 and in light energy communication with the laser energy generator 12. The distal end 58 of the conduit 54 is mounted in the hollow shaft 48 so that it is eccentrically positioned with respect to the axis 60 of the hollow shaft 48. When the motor 40 is energized, the hollow shaft 48 rotates the distal end 58 of the conduit 54 in a predetermined circular pattern to scan the laser energy uniformly and thoroughly over the tissue in the target area.Type: GrantFiled: November 3, 1995Date of Patent: January 19, 1999Assignee: Luxar CorporationInventors: Steven E. Wojcik, Edward S. Schieferstein, Michael B. Levy
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Patent number: 5861020Abstract: In an apparatus used to irradiate body tissue with high-intensity laser light, a probe with at least one waveguide is used which can be coupled with a laser light source and which at its light-exiting section, which can be inserted in the body tissue, is equipped with a diffuser element which consists of a base material that is highly transparent to the laser light and, dispersed therein, scattering particles that deflect the light rays, and with a first cover tube that surrounds the waveguide at a distance, that connects to a coolant source, that is open at its distal end and that, at least in the region of the diffuser element, is made of a transparent and good heat-conducting material, a device for modifying beam intensity is situated in the path of the laser beam before the input coupling point, with the waveguide in the region of the light-exiting section being surrounded by a reflector and/or absorber that has at least one light outlet in the region of the target radiation surface.Type: GrantFiled: June 6, 1997Date of Patent: January 19, 1999Inventor: Hans-Joachim Schwarzmaier
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Patent number: 5851221Abstract: An implantable medical device of the type formed of a hermetically sealed enclosure attached on a enclosure attachment surface thereof to a module attachment surface of a pre-formed header module is disclosed. The pre-formed header module is attached to the enclosure attachment surface through use of a retention structure extending away from the enclosure surface into proximity with a portion of the pre-formed header module when the enclosure and module attachment surfaces are aligned with respect to one another. The retention structure comprises a bendable member that is bent from an initial position allowing the pre-formed header module to be seated with respect to the hermetically sealed enclosure to a retention position making an attachment against a bend engaging portion of the pre-formed header module.Type: GrantFiled: August 1, 1997Date of Patent: December 22, 1998Assignee: Medtronic Inc.Inventors: Eric M. Rieder, Frank Gonzalez, Randal C. Schulhauser, Bryan Zart
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Patent number: 5849027Abstract: An apparatus and method for photodynamic treatment of diseases using a source of noncoherent light energy with filtering and focusing means for producing radient energy in a broad bandwidth, the radient energy is transported to an area for disease treatment through a flexible fiber optic light guide. The light guide includes filtering and focusing means for selecting radient energy of a particular wavelength for theraputically treating diseases.Type: GrantFiled: September 4, 1996Date of Patent: December 15, 1998Assignee: MBG Technologies, Inc.Inventors: Mark B. Gart, Claudio Cesati
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Patent number: 5803729Abstract: A light curing gun for dental filling material includes a conical light concentrator element and a water filed chamber between the light source and the concentrator element. The water increases the collection of light as well as cooling the concentrator and filtering out light in the infrared portion of the spectrum. A water cooling jacket may also be provided around the light source and may be coupled to the water window so that water can be circulated through both the window and the water jacket.Type: GrantFiled: July 17, 1996Date of Patent: September 8, 1998Assignee: Efraim TsimermanInventor: Efraim Tsimerman
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Patent number: 5514168Abstract: A new method of treatment of vascular headaches (migraine, cluster) as well as atypical pain is presented, comprising the application of bursts of low power laser light to the area of intra-oral tenderness associated with the above conditions. This zone of tenderness is in the area of the plexus formed by the posterior and middle superior alveolar branches of the ipsilateral maxillary nerve. The intra-oral tenderness associated with vascular headaches and facial pain disappears almost immediately, returning in approximately three hours to a few days. With repeated applications, a marked decrease/elimination of the intra-oral tenderness and similar elimination of vascular headache and facial pain frequency and intensity has been observed. The treatment comprises the brief application of bursts of low power laser light (non-cutting 2 mW) from a low-power helium-neon laser, having a maximum output of 5 mW, utilizing an application time of 20 to 30 seconds.Type: GrantFiled: May 20, 1994Date of Patent: May 7, 1996Inventor: Mark H. Friedman
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Patent number: 5437659Abstract: Device for use in removing undesired material, e.g., occlusion or plaque, from a duct or blood vessel within a patient's body. The device comprises a catheter (21) adapted to be disposed within a duct and an element disposed adjacent to the distal end portion of the catheter such as fiber optic (25) emitting laser energy, a heated element (51) or a knife (62) for intersecting and releasing the undesired material. An inflatable bladder (29) is provided for positioning the distal end portion of the catheter adjacent the inner surface of the duct to maintain the element for intersecting and releasing the undesired material adjacent thereto. The device can also include a pair of abutments (22,23) disposed adjacent the distal end.Type: GrantFiled: April 6, 1993Date of Patent: August 1, 1995Assignee: Eli Lilly and CompanyInventor: Michael E. Leckrone
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Patent number: 5412561Abstract: A method of analyzing serial automated visual field data calculates a total field vector of the threshold sensitivity of points in a visual field and compares the total field vector with a calculated normal field vector for a given patient. The vector angle between the total field vector and the normal field vector is calculated to determine the distribution of threshold sensitivities to characterize the localization and the magnitude of field changes. In one embodiment, the sensitivities of each point in the visual field with respect to normal sensitivities for each point is plotted for each of a series of time spaced visual field tests. The single plot uses a line symmetrical about a zero axis whose magnitude reflects the difference from the norm for each point in each exam and forms a graphic depiction of changes in the visual field at each point over a series of visual field tests.Type: GrantFiled: January 28, 1992Date of Patent: May 2, 1995Inventors: Joseph S. Rosenshein, Marshall N. Cyrlin
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Patent number: 5377686Abstract: An apparatus and method for directly imaging fluorophores in tissue or fluid. The apparatus includes a fluorescence exciter light source for generating fluorescence exciter light, a collimater for collimating and directing the light onto the material, and a filter between the material and a camera or the examiner's eye for passing selected wavelengths of light to the camera or to the examiner's eye. The apparatus is useful for detecting leakage in vascular eye tissue, particularly leakage from iris capillaries into surrounding tissues or into the anterior chamber of the eye.Type: GrantFiled: October 11, 1991Date of Patent: January 3, 1995Assignee: The University of ConnecticutInventors: James F. O'Rourke, Robert H. Fagan