97results about How to "Radiation shielding" patented technology

A radiotherapy system, and preferably a brachytherapy system, for delivering radiation to tissue surrounding an interstitial space is provided. While the system can be used for a variety of purposes, the system is preferably used to treat spinal metastases. In general, the system includes a catheter member having a proximal end, a distal end, and an inner lumen extending therethrough, and a structural support adapted to fit within an interstitial space in load bearing portion of a patient's body and having an internal space for removably receiving the distal end of the catheter member. At least one anchoring element can be disposed proximate to the distal end of the catheter. The anchoring element is preferably adapted to fit within the internal space in the structural support so as to anchor the distal end of the catheter therein. The system further includes a radiation source disposable within the internal space of the structural support through the lumen in the catheter for delivering radiation to tissue surrounding the interstitial space.

The invention provides automobile toughened glass ink, which is prepared from glass powder, inorganic pigment, varnish, a dispersing agent, a flatting agent and a thixotropic agent, wherein the glass powder is prepared from 74-85wt% of Bi2O3, 2-11wt% of SiO2, 2-11wt% of B2O3, 2-5wt% of Al2O3 and 2-5wt% of ZnO. The application also provides a preparation method and application of the automobile toughened glass ink. When the glass powder in the automobile toughened glass ink provided by the invention is sintered at the temperature of 600-700 DEG C, one or a plurality of silicate or borate crystal phases are easy to separate out; a dense crystallization layer enables the ink to have a good anti-sticking property and not to adhere to a mould, and enables the ink to have the advantages of being high in adhesive force and high in acid and alkali resistance, shielding conductive silver paste, resisting ultraviolet radiation, and the like.

A method of performing a medical procedure includes providing a radiation-shielding cubicle having an interior defining a medical personnel region and including a first wall having an opening therein, locating the cubicle with respect to an x-ray table so a portion of the x-ray table extends through the opening into the interior of the cubicle, and separating medical personnel from an x-ray emitter disposed outside of the cubicle using the first wall to shield the medical personnel from radiation emitted by the x-ray emitter.

A fingerprint imaging system configured to capture an image of a friction ridge pattern of a subject (e.g., a fingerprint, a palm print, a hand print, a footprint, etc.). The system may include one or more components that reduce the impact of ambient light on the performance of the system. In some implementations, the system may reduce the impact of ambient light without requiring additional power (e.g., to generate an increased amount of radiation) and without including “external” hoods and / or covers designed to block ambient light prior to the ambient light entering system. Instead, the system may reduce the impact of ambient light on performance by blocking ambient light internally within the system along an optical path of radiation used to electronically capture an image of the friction ridge pattern.

A device for administering brachytherapy to a patient includes a vessel that may be in the form of a hollow cylindrical cup, for fleshing into and substantially filling the open-ended cavity. The vessel has a closed outer end, which may be a removable cover, and a source guide penetrates the closed outer end so as to extend deep into the vessel, to receive a radiation source in the source guide. A manipulator can be connected to the radiation source, and also to the source guide, for allowing several different types of manipulation of the source orientation and position within the vessel during the brachytherapy procedure.

The invention provides an electronic device comprising an electronic component, a circuit board, a grounding layer and a drive chip. The circuit board comprises a substrate, a patterned line layer and a protective layer, wherein the patterned line layer is allocated on the substrate, and the partial patterned line layer is exposed of the protective layer. At least one grounding pin and a plurality of output / input pins are defined. Each output / input pin comprises a first pointed end, and the length of the grounding pin is larger than that of each output / input pin. The grounding layer covers a part of the protective layer and a part of the grounding pin. The grounding layer comprises a plurality of second pointed ends corresponding to the first pointed ends. A gap is reserved between the forward projection of each first pointed end and the forward projection of each second pointed end. The drive chip is arranged on the circuit board and is in electric connection with the electronic component through the circuit board.

The invention discloses radiation protection double-layer chiffon silk fabric which is double-layer double-face weave yarn-dyed fabric. A mulberry silk plain weave structure is arranged on the surface layer, and a mulberry silk and silver fiber pilotaxitic texture is arranged on the inner layer. The warp density of the inner layer is larger than or equal to 20 / cm, the weft density of the inner layer is larger than or equal to 20 / cm, the warp density of silver fibers is 20-25 / m, and the weft warp density of the silver fibers is 38-45 / m. The surface layer and the inner layer are connected through binding places. The radiation protection double-layer chiffon silk fabric has good radiation protection performance, meanwhile, the problem that existing anti-electromagnetic radiation fabric is poor in appearance is solved, and the new process of weaving real silk and silver fiber interweaving products is created.

A conductive, compliant, deformable boot for a fiber optic or other cable assembly is described, which both provides traditional cable strain relief functions and extends over the body of the connector to form an electrically conductive shield over the cable receptacle aperture when the cable assembly is plugged into the aperture. The boot deforms slightly upon insertion of the cable assembly and compresses against a mating component to form a shield against electrostatic discharge which can accumulate on the cable or card and also to shield against electromagnetic emissions entering or leaving the circuit card package. The boot also shields against emissions when two cable assemblies are mated together by deforming slightly upon mating and then returning to its original state when the assemblies are disconnected.

The invention discloses nanometer zinc oxide / cation polysaccharide hybridized nano-particles and a preparation method of the nanometer zinc oxide / cation polysaccharide hybridized nano-particles, and belongs to the technical field of composite nano-particles. The nanometer zinc oxide / cation polysaccharide hybridized nano-particles are prepared through a cation polysaccharide / sulfydryl-containing amino acid / nanometer zinc oxide precursor mixed solution, the preparation method is simple, and the cost is relatively low. Compared with the existing particle materials, the hybridized nano-particles provided by the invention have the advantages of good dispersibility and good light stability, and relatively low photocatalytic activity, and in addition, the hybridized nano-particles also have goodoxidation resistance and emulsifying properties, and can be applied to sun-screening skin care products and other anti-ultraviolet materials.

An earpiece using optical fiber shields the human brain from radio frequency radiation generated by wireless phones and similar radio devices. The disclosed device and method prevents unwanted exposure to potentially harmful radiation and provides an enhanced communication path between a cell phone and ear-piece.

The invention discloses a health-care composite fabric, which comprises a surface layer and an inner layer and is characterized in that: an anion layer is coated on an outer surface of the surface layer; and a nano biological synbiotic layer is arranged between the surface layer and the inner layer. The disclosed health-care composite fabric has the health-care functions of keeping warm, accelerating human sleep, effectively shielding electromagnetic radiation, improving immunologic function and the like.

The invention discloses a multifunctional magnetic health-care shim belonging to the technical field of health protection supplies. The shim comprises 8 layers, sequentially including a three-proofing and two-resistance surface cloth layer, an anti-acarien cloth layer, a far infrared bamboo fiber needle-punched cotton layer, a magnet layer capable of generating a stereo biological magnetic field, an interwoven cloth layer, a matlin cashmere needle-punched cotton layer, a high-energy silver ion shielding cloth layer and a three-proofing two-resistance bottom cloth layer from top to bottom. The multifunctional magnetic health-care shim disclosed by the embodiment of the invention integrates multiple functions, namely, one the one hand, the blood circulation and the micro-circulation of a human body can be improved continuously under the common action of the biological magnetic field, far infrared and negative oxygen ion to enhance the health-care effects of the immunity, the self-healing ability and the resistance of the human body, on the other hand, the functions of waterproofing, oilproofing, static electricity prevention, bacterium and acarien prevention, dampness prevention, heat preservation and air refreshing can be achieved, also the functions of effectively shielding harmful electronic radiation, and achieving safety, sanitation and environment friendliness effects are achieved, and besides, the shim is manufactured perfectly, light in weight, portable, wide in application range and matched with any conventional mattress.

The invention discloses a gripping mechanism for a waste filtering core replacement and transfer unit device. The gripping mechanism comprises a gripper electric cylinder, a gear motor, a transmission gear box, a screw rod, a sealing ring and a gripper lifting claw. The screw rod penetrates through the transmission gear box. The gripper electric cylinder is arranged at the top of the screw rod, and the sealing ring is arranged at the bottom of the screw rod. The gripper lifting claw is arranged under the sealing ring. The gear motor is installed on the transmission gear box. The transmission gear box is fixed to the waste filtering core replacement and transfer unit device. According to the gripping mechanism for the waste filtering core replacement and transfer unit device, gripping or releasing of a shielding container cover can be conducted under the sealed condition through remote control and does not need to be operated by personnel in a close mode, so that radiation to the personnel is avoided, and the safety grade of nuclear power equipment in the replacement process is greatly improved.