1230results about How to "Avoid radiation" patented technology

A wireless energy transfer system comprising: a transmitter configured to beam scan RF radiation across a plurality of sectors at a first frequency, a receiver storing energy from the RF radiation, and sending acknowledgements at a second frequency, the first frequency being significantly different from the second frequency, and a controller configured to direct wireless energy transfer from the transmitter substantially at the receiver based on the acknowledgements.

A gas chamber contains upper and lower chamber bodies forming a cavity, a heating chuck for a wafer, a remote gas source, and an exhaust unit. Gas is injected into the cavity through channels in an injector. Each channel has sections that are bent with respect to each other at a sufficient angle to substantially eliminate entering light rays entering the channel from exiting the channel without reflection. The channels have funnel-shaped nozzles at end points proximate to the chuck. The injector also has thermal expansion relief slots and small gaps between the injector and mating surfaces of the chamber and gas source. The temperature of the injector is controlled by a cooling liquid in cooling channels and electrical heaters in receptacles of the injector. The upper chamber body is funnel-shaped and curves downward at an end of the upper chamber body proximate to the chuck.

The present invention provides multi-optoelectronic assemblies in which a plurality of multi-receiver cages in which are mounted multi-optical receptacle assemblies associated with a plurality of transceivers are mounted on a printed wire assembly. The multi-optical receptacle assemblies includes a plurality of receptacles having shared walls, unitary walls or no walls. The multi-optoelectronic assemblies are compatible with multi-fiber assemblies.

A built-in antenna apparatus and a portable terminal including the same are provided. The apparatus includes a substrate, an antenna carrier, a plate type antenna radiator operating in at least one resonance band, and at least one sub antenna radiator. The substrate has a feeding pad for electrically coupling with a Radio Frequency (RF) connector. The antenna carrier for establishing preset distance from the substrate. The plate type antenna radiator is disposed on the antenna carrier. The sub antenna radiator is electrically coupled with the plate type antenna radiator.

In a susceptor (10) having a wafer pocket (101) for receiving a wafer W at the time of vapor-phase growth, the wafer pocket has at least a first pocket portion (102) for loading an outer circumferential portion of the wafer and a second pocket portion (103) formed to be lower than the first pocket and having a smaller diameter than that of the first pocket portion, and a fluid passage (105) having one end (105a) opening on a vertical wall (103a) of said second pocket portion and the other end (105b) opening on a back surface (104) or a side surface (106) of the susceptor is formed.

A photoluminescence color display comprises a display panel that displays red, green and blue pixel areas, an excitation source operable to generate excitation radiation for operating the display, and a photoluminescence color-element plate. The color-element plate comprises at least one photoluminescence material, such as a phosphor material or quantum dots, that is operable to emit light corresponding to red, green and blue pixel areas of the display in response to said excitation radiation. Additionally, the photo-luminescence color display comprises a wavelength selective filter that is provided between the color-element plate and the excitation source. The filter has a transmission characteristic that allows the passage of excitation radiation from the excitation source to excite the at least one photoluminescence material whilst preventing the passage of photoluminescence light back to the excitation source thereby prevent cross contamination of light among the different pixel areas of the display.

The invention provides methods and compositions for providing biocompatible surfaces to medical articles. In particular the invention provides biocompatible coatings with heparin activity. In some aspects, the biocompatible coatings of the invention are able to release a bioactive agent. The coatings can be formed using biostable or biodegradable polymeric material and photoreactive groups. The invention also provides methods for improving the quality of bioactive agent-containing coatings by performing pre-irradiation of biocompatible coating compositions.

A balloon catheter device that provides radial delivery of visible or near-infrared radiation. The radial delivery of visible or near-infrared radiation to the pulmonary vein is particularly effective in creating transmural, continuous, and circumferential lesions in the pulmonary vein. Creation of these lesions electrically isolates the pulmonary veins from the left atrium of the heart and, thus is a particularly suitable method for the treatment of atrial fibrillation.

In the illumination device of the invention, an LED is oppose to a side surface of a flat light guide member. A light shield surface for shielding light from the LED and emitted toward the backside of the guide member in vicinity of the LED on the backside of the light guide member.

The invention relates to an antenna of small dimensions. According to an embodiment, the antenna comprises: a radiating element in the form of a plate; an antenna feed connected to the radiating element; a conductive surface substantially parallel to the radiating element and placed at a distance e from the element, the conductive surface being provided with at least one slot facing the radiating element; and a conductive connection between the conductive surface and the radiating element.

A liquid crystal display panel, in which a first substrate (1) and a second substrate (6) are opposed to each other with a predetermined gap provided therebetween, a liquid crystal layer (25) is sealed in the gap with a sealant (26), pixel portions are formed by electrodes (2, 7), the electrodes being provided on the first substrate (1) and on the second substrate (6) to oppose to each other via the liquid crystal layer (25), and lead electrodes (41) for applying electric signals to the electrodes (2, 7) forming the pixel portions are provided at least on the first substrate (1), wherein a thin film insulating layer (22) being an insulating covering member is provided to cover at least portions of the lead electrodes (41) outside the sealant (26) and overlap with a portion of the second substrate (6).

A DVI circuit for generating a digital video signal in accordance with a display standard of a personal computer, etc. is provided for a processor device to which an electronic endoscope is connected. On the output side of the DVI circuit, a high vision system converter which is an adapter unit is connected as arbitrarily attached and removed using a connector. In the processor device, when the fixed state of a fixing screw is detected by a detection switch SW1, and it is determined that the power supply line connected using a connector to the high vision system converter is in the energized state, a live line processing circuit activates a signal line of the connector. Thus, the adapter unit can be easily attached and removed without turning off the processor device.

A medical imaging system generates 3D anatomical images from acquired 2D anatomical images. The system includes a synchronization processor for providing a synchronization signal identifying a particular phase of heart operation of a particular patient. An image acquisition device acquires 2D anatomical images of a patient heart in angularly variable imaging planes over multiple different heart cycles at the particular phase of heart operation in response to the synchronization signal and in response to recorded data indicating imaging previously being performed at particular imaging plane angles. An image processor stores the recorded data to prevent imaging overlap at the particular imaging plane angles and to prevent unnecessary radiation exposure of the patient. The image processor processes 2D images acquired by the image acquisition device of the patient heart in multiple different imaging planes having relative angular separation, to provide a 3D image reconstruction of the patient heart

An ultrasound oral hygiene and therapeutic device comprises an array of ultrasonic transducers, a power generator, and a filling element. The ultrasonic transducer array, with optional radiation plates and reflection plates, produce uniform ultrasound radiation on each surface desirable to be treated by ultrasound radiation. The soft and resilient filling element snugly fits into a user's oral cavity, confines cleaning solution and the ultrasound action within a limited ultrasound action zone surrounding the surfaces desirable to be treated, and protects all other parts of the oral cavity from ultrasound radiation. The device provides superior, uniform, and consistent cleaning results in a short time. In particular, it cleans the entire dental surface, including the inter-dental and gingival areas. It is extremely easy to use, quiet, durable, energy efficient, and inexpensive in long run.

The invention relates to a master-slave teleoperation vascular intervention surgical robot which comprises a master control mechanism, a slave propulsion mechanism and a PMAC (Programmable Multi-Axis Controller); the master control mechanism serves as the operating end for a doctor; the slave propulsion mechanism serves as an actuating mechanism of the robot, and used in an operating room for replacing the doctor to hold a catheter for completing the motion function of the catheter; and the PMAC is used for realizing information transfer between the master control mechanism and the slave propulsion mechanism, so that the slave catheter propulsion mechanism moves according to the motion information of the master control mechanism. The master-slave teleoperation vascular intervention surgical robot has the advantages that the master-slave teleoperation method is adopted for assisting the doctor to perform the operation, the slave propulsion mechanism realizes the axial feeding and circumferential rotation motion of the catheter, and is used in the operating room for replacing the doctor to hold the catheter, so that the doctor is free from the operating room, and outside the operating room without ray radiation, the master control mechanism realizes the teleoperation of the catheter propulsion mechanism to avoid the doctor from ray radiation; and the operation is stable and reliable, the operation accuracy is high, and the operation quality is favorably improved.

A backlight device that illuminates a transmissive liquid crystal panel is disclosed. The device includes: a plurality of light source substrates on which a plurality of light emitting devices irradiating illumination light are mounted; a bottom chassis having one surface to which the plurality of light source substrates are attached; a reflector having openings corresponding to the light emitting devices and through which the light emitting devices are exposed to one surface side, and reflecting the illumination light irradiated from the light emitting devices; a diffuser facing the one surface side of the reflector through a predetermined facing interval and internally diffusing the illumination light incident from the reflector; and an optical function sheet laminate combined with the diffuser on one surface side thereof, containing a stack of a plurality of optical function sheets and guiding the illumination light to the transmissive liquid crystal panel.

An optoelectronic interconnect module comprising a housing having a first aperture on a first side of the housing for receiving an optical ferrule and a second aperture on a second side of the housing for receiving a semiconductor die. A mirror is mounted within the housing at an angle for reflecting optical transmissions between the first and second apertures. A first optical lens is mounted between the first aperture and the mirror, and a second optical lens is mounted between the second aperture and the mirror. The optoelectronic interconnect module transmits an electronically modulated optical signal between an optical fiber in the first aperture and an optoelectronic semiconductor die adjacent to the second aperture within a mutually orthogonal plane.

Process and system for processing a thin film sample, as well as at least one portion of the thin film structure are provided. Irradiation beam pulses can be shaped to define at least one line-type beam pulse, which includes a leading portion, a top portion and a trailing portion, in which at least one part has an intensity sufficient to at least partially melt a film sample. Irradiating a first portion of the film sample to at least partially melt the first portion, and allowing the first portion to resolidify and crystallize to form an approximately uniform area therein. After the irradiation of the first portion of the film sample, irradiating a second portion using a second one of the line-type beam pulses to at least partially melt the second portion, and allowing the second portion to resolidify and crystallize to form an approximately uniform area therein. A section of the first portion impacted by the top portion of the first one of the line-type beam pulses is prevented from being irradiated by trailing portion of the second one of the line-type beam pulses.

The mass flow rate sensor includes a waveguide disposed in a flow passage having a bluff body facing in an upstream direction. Waves are pulsed along the waveguide for interaction with the fluid. A receiver is coupled to the waveguide to detect a propagated wave and provides a first output signal proportional to the transit time of the propagated wave for determining fluid density. The receiver also provides a second output signal proportional to the shedding frequency of vortices from the waveguide to determine velocity. An electronics module calculates mass flow rate from the velocity times density times area of the flow passage and a constant. In other forms, the velocity is ascertained by transmitting an ultrasonic beam through the shedding vortices to determine vortex frequency which is proportional to velocity.

Irradiation of a surface of a material with a gas cluster ion beam modifies the wettability of the surface. The wettability may be increased or decreased dependent on the characteristics of the gas cluster ion beam. Improvements in wettability of a surface by the invention exceed those obtained by conventional plasma cleaning or etching. The improvements may be applied to surfaces of medical devices, such as vascular stents for example, and may be used to enable better wetting of medical device surfaces with liquid drugs in preparation for adhesion of the drug to the device surfaces. A mask may be used to limit processing to a portion of the surface. Medical devices formed by using the methods of the invention are disclosed.

Medical devices, and in particular implantable medical devices, may be coated to minimize or substantially eliminate a biological organism's reaction to the introduction of the medical device to the organism. The medical devices may be coated with any number of biocompatible materials. Therapeutic drugs, agents or compounds may be mixed with the biocompatible materials and affixed to at least a portion of the medical device. These therapeutic drugs, agents or compounds may also further reduce a biological organism's reaction to the introduction of the medical device to the organism. In addition, these therapeutic drugs, agents and / or compounds may be utilized to promote healing, including the formation of blood clots. Also, the devices may be modified to promote endothelialization. Other compounds may include those that prevent damage from ionizing radiation. Various materials and coating methodologies may be utilized to maintain the drugs, agents or compounds on the medical device until delivered and positioned. In addition, the devices utilized to deliver the implantable medical devices may be modified to reduce the potential for damaging the implantable medical device during deployment. Medical devices include stents, grafts, anastomotic devices, perivascular wraps, sutures and staples. In addition, various polymer combinations may be utilized to control the elution rates of the therapeutic drugs, agents and / or compounds from the implantable medical devices.

A collector for propagating incident radiation to a remote location. The collector comprises, a light directing component coupled to a buffer component, a first propagation component coupled to the buffer component and configured to transmit the incident radiation into a collector region through one of a plurality of windows, and an optical transport assembly coupled to an end of the collector region and having a second propagation component. Each light directing component is configured to redirect the incident radiation from a first direction to a second direction, and the collector region includes a plurality of regions exhibiting a refractive index value that gradually transitions from about 1.5 to about 2.0. The second propagation component is further configured to retain the incident radiation.

An electromagnetic shielding plate having high shielding effect is provided.The electromagnetic shielding plate is formed of a conductive plate having elasticity and is provided on the edge thereof with a connecting strip bent in such a manner that the tip thereof projects from the surface of the plate, and with a supporting portion. When the electromagnetic shielding plate and the printed substrate are connected, it is ensured that the ground pattern 201 of the printed board 200 and the connecting strip are brought into contact with respect to each other, thereby a high shielding effect can be obtained.

A lubrication system includes an inlet conduit having an inboard end attached to a bearing support and an outboard end for receiving lubricant. A lubricant inlet assembly is attached to the inlet conduit outboard end and has an inlet cap with a receptacle, an inlet cap body, and a cap base. The inlet receptacle is configured to mate with a lubricant supply line, where the inlet cap body has an outer cap enclosing an inner cap, the outer cap having a convoluted wall. An inlet conduit termination fitting has an outboard fitting section, with an o-ring in a circumferential groove, disposed inside the inlet cap, and an inboard fitting section attached to the inlet conduit outboard end. A cap heat shield encloses the inlet cap and a conduit heat shield is attached to the inlet conduit. The lubricant inlet assembly is mounted to an engine casing with a low-conductivity insulating gasket between the cap base and the engine casing.

A personal radiation protection garment that substantially contours to an operator's body is suspended from a suspension means. The garment is operable to protect the operator from radiation. The suspension means is operable to apply constant force. The suspension means allows operator wearing protective radiation garment to move freely in the X, Y, and Z spatial planes simultaneously, such that the protective radiation garment is substantially weightless to operator. A radiation protection face shield and flap can also be suspended from suspension means, such that face shield and flap are substantially weightless to operator. The suspension means can be mounted to a ceiling.

A system for ablating tissue using interferential electromagnetic fields, comprises tumor shape information; radiation tip shape and position information; a mathematical model for computing first frequency and phase information, second frequency and phase information, and mixing information based on the tumor shape information and on the radiation tip shape and position information. The system further comprises a first generator mechanism for generating a first tone based on the first frequency information and on the first phase information; a second generator mechanism for generating a second tone based on the second frequency information and on the second phase information; a mixer for mixing the first and second tones based on the mixing information; and a radiation tip for generating an interferential electromagnetic field pattern based on the first and second tones. The radiation tip may include radiation coils affixed to the distal end of a conduction member. The conduction member may include a set of nesting conductors for transmitting current to the radiation coils within the radiation tip, the current being selected based on the interferential electromagnetic field pattern desired. Also, using interferential electromagnetic field patterning, non-medical and / or non-cell-destroying systems, e.g., a tissue warmer, a faster microwave oven, an effective security gateway, and / or a safer cellular telephone, may be created.