Sergey S.
Sergey S. Grigoryants, Arlington, MA US
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20100280411 | Transbronchial Needle Aspiration Device - Transbronchial needle aspiration (TBNA) device. In one embodiment, the device comprises a handle and a flexible catheter, the handle having a bore, the proximal end of the catheter being fixed within the handle bore. A protective tubular hub having a flared distal end is press-fit coaxially within the distal end of the catheter, the distal end of the catheter being sealed around the distal end of the hub so as to define a distal opening. A hollow needle having a sharp tip at its distal end is disposed within the catheter, the needle tip being sized for insertion through the distal opening of the catheter. The distal end of a flexible wire is coupled to the proximal end of the needle, the proximal end of the wire extending through the handle bore and coupled to a button slide accessible through a slot in the handle. The button slide is movable between a distal position in which the needle tip extends through the distal opening of the catheter and a proximal position in which the needle tip is disposed within the hub. When in either its distal position or its proximal position, a pawl on the button slide releasably engages a corresponding notch on the handle to lock the button slide in place. | 11-04-2010 |
20110276063 | DEVICE FOR FASTENING TISSUE LAYERS - Endoscopic devices and methods used for fastening multiple tissue layers, such as, for example, an endoscopic fundoplication procedure, are disclosed. The endoluminal device includes a tissue fastener, a flexible needle having means for grasping and releasing a portion of the tissue fastener, and a deflector for deflecting and guiding the needle toward the multiple tissue layers. | 11-10-2011 |
20130053727 | Transbronchial Needle Aspiration Device - Transbronchial needle aspiration (TBNA) device. In one embodiment, the device comprises a handle and a flexible catheter, the handle having a bore, the proximal end of the catheter being fixed within the handle bore. A protective tubular hub having a flared distal end is press-fit coaxially within the distal end of the catheter, the distal end of the catheter being sealed around the distal end of the hub so as to define a distal opening. A hollow needle having a sharp tip at its distal end is disposed within the catheter, the needle tip being sized for insertion through the distal opening of the catheter. The distal end of a flexible wire is coupled to the proximal end of the needle, the proximal end of the wire extending through the handle bore and coupled to a button slide accessible through a slot in the handle. The button slide is movable between a distal position in which the needle tip extends through the distal opening of the catheter and a proximal position in which the needle tip is disposed within the hub. When in either its distal position or its proximal position, a pawl on the button slide releasably engages a corresponding notch on the handle to lock the button slide in place. | 02-28-2013 |
Sergey S. Grigoryants, Malden, MA US
Patent application number | Description | Published |
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20080225410 | Optical assembly for medical imaging devices - Optical assemblies for use in medical or other devices so as to image an object under examination onto an image sensor include a plurality of lens elements that can be retained in lens barrel. The lens elements and the lens barrel can be sealed with a compressible gasket. In one example, at least one lens element is made of an injection-moldable plastic and at least one lens element is made of a relatively dispersive optical glass. A lens barrel diameter or lens diameter can be selected to permit access to the object under examination with surgical or other tools. Aperture plates can be situated so as to reduce flare in the object image. | 09-18-2008 |
20110069398 | OPTICAL ASSEMBLY FOR MEDICAL IMAGING DEVICES - Optical assemblies for use in medical or other devices so as to image an object under examination onto an image sensor include a plurality of lens elements that can be retained in lens barrel. The lens elements and the lens barrel can be sealed with a compressible gasket. In one example, at least one lens element is made of an injection-moldable plastic and at least one lens element is made of a relatively dispersive optical glass. A lens barrel diameter or lens diameter can be selected to permit access to the object under examination with surgical or other tools. Aperture plates can be situated so as to reduce flare in the object image. | 03-24-2011 |
Sergey S. Grigoryants, Medford, MA US
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20110295072 | IMAGING ASSEMBLY WITH TRANSPARENT DISTAL CAP - An imaging assembly for use in a medical imaging device such as an endoscope or the like. In one embodiment, the imaging assembly includes a transparent distal cap that is shaped to receive an image sensor insert. The image sensor insert has a cooling channel that supplies a cooling liquid or gas to one or more illumination sources. | 12-01-2011 |
20130317524 | ENDOSCOPIC FUNDOPLICATION DEVICES AND METHODS FOR TREATMENT OF GASTROESOPHAGEAL REFLUX DISEASE - Endoscopic devices and methods used for fastening multiple tissue layers, such as, for example, an endoscopic fundoplication procedure, are disclosed. The endoluminal device includes a tissue fastener, a flexible needle having means for grasping and releasing a portion of the tissue fastener, and a deflector for deflecting and guiding the needle toward the multiple tissue layers. | 11-28-2013 |
Sergey S. Kondratiev, Tomsk RU
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20140354076 | LINEAR TRANSFORMER DRIVER FOR PULSE GENERATION WITH FIFTH HARMONIC - A linear transformer driver includes at least one ferrite ring positioned to accept a load. The linear transformer driver also includes a first, second, and third power delivery module. The first power delivery module sends a first energy in the form of a first pulse to the load. The second power delivery module sends a second energy in the form of a second pulse to the load. The third power delivery module sends a third energy in the form of a third pulse to the load. The linear transformer driver is configured to form a flat-top pulse by the superposition of the first, second, and third pulses. The first, second, and third pulses have different frequencies. | 12-04-2014 |
Sergey S. Kopenkin, Moscow City RU
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20160033710 | BACKLIGHT UNIT FOR HOLOGRAPHIC DISPLAY - A backlight unit for a holographic display is provided. The backlight unit includes: at least one light source; at least one input coupler; a light guide panel (LGP) that guides light; a first holographic element on a first surface of the LGP; and a second holographic element on a second surface of the LGP, wherein the at least one input coupler is configured to uniformly transmit rays emitted from the at least one light source toward the first holographic element through the LGP, and the LGP is configured to transmit the rays incident from the at least one input coupler toward the first holographic element, and the first holographic element redirects the rays toward the second holographic element, the redirected rays being substantially parallel to one another, and the second holographic element emits rays incident from the first holographic element toward an outside of the LGP. | 02-04-2016 |
Sergey S. Ryabchenkov, Moscow RU
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20100164551 | SAMPLE-AND-HOLD (S/H) CIRCUIT - A sample-and-hold circuit ( | 07-01-2010 |
Sergey S. Tsaregorodtsev, Odintsovo District RU
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20090317544 | Method and Device for Gasodynamically Marking a Surface with a Mark - The invention relates to the field of powder materials coatings, in particular the introduction of material powder particles in a pulse mode to the surface layers of production. The invention can be used in various industries to give the surface specific physical and chemical characteristics, as well as for causing spot-markers on the surface of the production with the aim of their further identification, including new developed DNA-methods. The method proposed here is the method of causing markers on the surface Gasodynamically, which is described further: disperse gas powder dredge by supersonic gas jet in the booster channel and subsequent causing the powder from the gas powder dredge on the surface that is to be marked. At the same time the supersonic gas jet is supplied to the boost channel from the supersonic nozzle, in which the compressed gas is supplied from the source of gas. Gas powder dredge is fed to the booster channel from the ejection chamber in the form of a swirl through the annular gap formed by external surface of the supersonic nozzle and internal surface of the ejection chamber. Also the device for causing spot-markers on the marking surface Gasodynamically, which is proposed, is also described further: boost channel and ejection chamber are coaxial and conjugated hermetically and in the place of this conjugation, the inner surface of this conjugation forms annular gap with outer surface of supercritical part of supersonic nozzle, powdered material batcher formed by sectional and hermetically conjugated case and lid, and inside it is fitted with U-shaped curved tube performed as split through U-shape curve and fitted with aperture in the area adjacent to the inner part of the lid. | 12-24-2009 |