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Devices and methods for vagus nerve stimulation

InactiveUS7072720B2Great stimulationReadily regulated and reliableSpinal electrodesHead electrodesCardiologyCardiac asystole
The present invention relates to apparatus and methods for electrically inducing and pharmacologically maintaining cardiac asystole. The present invention combines electrostimulation of the vagus nerve to transiently arrest the heart, and the administration of a pharmaceutical composition that suppresses the tendency of the heart to escape from the induced asystolic state. The present invention provides an apparatus to interrogate the response of a heart to an electric pulse applied to the vagus nerve and to select the optimum location of an electrode and pulse to arrest the heart. The present invention further provides embodiments of catheter and tube electrode devices that incorporate expanding electrodes intended to contact the interior walls of blood vessels or anatomic structures in which the electrode devices are implanted. The present invention also provides cutaneous array electrodes that may be used non-invasively to stimulate the vagus nerve.
Owner:EMORY UNIVERSITY

Radio frequency tag and method for regulating the same

An RF tag includes an IC chip and a dipole antenna both arranged on a dielectric base. The dipole antenna is composed of a pair of antenna patterns each of which is connected to respective feed points of the IC chip and extends in an opposite direction. When manufacturing the RF tag, length of the pair of antenna patterns is set so that the impedance matching between the IC chip and the dipole antenna is optimum in the air. When using the RF tag attached on an article, the extending ends of the antenna patterns are eliminated so that the length of the dipole antenna matches the wave-length of radio waves traveling through the article that the RF tag is attached.
Owner:TOSHIBA TEC KK

Subsea wellbore drilling system for reducing bottom hole pressure

InactiveUS6854532B2Easy to deployFaster and effective subsea downhole operationDrilling rodsConstructionsDelivery systemBottom hole assembly
The present invention provides drilling systems for drilling subsea wellbores. The drilling system includes a tubing that passes through a sea bottom wellhead and carries a drill bit. A drilling fluid system continuously supplies drilling fluid into the tubing, which discharges at the drill bit bottom and returns to the wellhead through an annulus between the tubing and the wellbore carrying the drill cuttings. A fluid return line extending from the wellhead equipment to the drilling vessel transports the returning fluid to the surface. In a riserless arrangement, the return fluid line is separate and spaced apart from the tubing. In a system using a riser, the return fluid line may be the riser or a separate line carried by the riser. The tubing may be coiled tubing with a drilling motor in the bottom hole assembly driving the drill bit. A suction pump coupled to the annulus is used to control the bottom hole pressure during drilling operations, making it possible to use heavier drilling muds and drill to greater depths than would be possible without the suction pump. An optional delivery system continuously injects a flowable material, whose fluid density is less than the density of the drilling fluid, into the returning fluid at one or more suitable locations the rate of such lighter material can be controlled to provide supplementary regulation of the pressure. Various pressure, temperature, flow rate and kick sensors included in the drilling system provide signals to a controller that controls the suction pump, the surface mud pump, a number of flow control devices, and the optional delivery system.
Owner:BAKER HUGHES INC

Product circulation tracking method and system based on block chain

The invention provides a product circulation tracking method based on a block chain. The method comprises the steps that data information generated in product circulation operation links is collected,graded, encrypted and packaged to generate blocks; whether the information of the blocks is true is verified through authenticated manager node workload proof; the blocks passing verification are stored into the block chain, and meanwhile keys are stored in product packages; and the data information of the products on the block chain in different circulation links is found and decrypted through corresponding key information in the product packages, so that the purpose of tracking and tracing all the circulation links is achieved. The invention furthermore provides a corresponding system. According to the product circulation tracking method and system based on the block chain in the embodiment, the whole production and circulation process of the products can be monitored, and source tracing can be performed no matter which link has a problem; moreover, the network system divides product information into three different levels, supervision is realized hierarchically, and information security is guaranteed; and meanwhile, a strict verification process is available for information input, multiple management nodes cooperate mutually, a single management node cannot impose a great influence on the whole system, and therefore the distributed network tracking system has high practicability in terms of product monitoring and is suitable for large-range popularization.
Owner:SHANGHAI DINGMING CONTAINER STORAGE & TRANSPORTATION CO LTD

Apparatus and method for regulating constant output voltage and current on primary side in a flyback converter

A voltage detector circuitry extracts a signal on primary side of a transformer in a flyback converter, which is proportional to the output voltage of the converter without voltage drop on the rectifier diode and leakage inductance effect on the transformer, and good output regulation is achieved without opto-coupler. To accurately detect the output voltage on the primary side, the knee point of the voltage on an auxiliary winding of the transformer is detected. A current limit proportional to the input voltage of the converter is produced from the voltage on an auxiliary winding for stabilizing the output current in constant current mode.
Owner:RICHTEK TECH

Radioactive source on-line monitoring system based on Internet of Things technology

The invention provides a radioactive source on-line monitoring system based on an Internet of Things technology. The radioactive source on-line monitoring system comprises RF (radio frequency) cards, field monitoring terminals, a transmission network and an on-line monitoring informatization management platform, wherein the RF card is fixedly arranged in each monitoring site with a preset distance from a radiation source, unique identity information of a radiation source, approved geographical position information and the standard radiation dose rate are stored in the RF cards, each field monitoring terminal is arranged in the corresponding monitoring site, and comprises an RF card reader-writer, a radiation dose rate measuring instrument, video collecting equipment, a GPS (global positioning system) positioning device, a controller, an in-site warning device, a communication interface and a power supplying power supply, and the processor is respectively connected with the RF card reader-writer, the radiation dose rate measuring instrument, the video collecting equipment, the GPS positioning device, the field warning device, the communication interface and the power supplying power supply. The radioactive source on-line monitoring system has the advantages that the radiation source can be comprehensively monitored, then, through a communication network, the monitoring information can be remotely obtained in time, and the monitoring efficiency is effectively improved.
Owner:ZHEJIANG SOS TECH

Internet of vehicles-based car periodic leasing system and method

The invention discloses an internet of vehicles-based car periodic leasing system and method. The leasing system comprises intelligent vehicle-mounted equipment, a handheld terminal APP, a periodic leasing remote management control center and a vehicle, wherein the intelligent vehicle-mounted equipment is arranged on the vehicle and is connected with the vehicle, the periodic leasing remote management control center and the handheld terminal APP, the periodic leasing remote management control center is connected with the intelligent vehicle-mounted equipment and the handheld terminal APP through an internet, and the vehicle and the intelligent vehicle-mounted equipment are in communication connection through a vehicle-mounted bus. By the leasing system and a leasing and vehicle management method, the problems of car leasing and returning, car seeking, vehicle identification designed user opening, real-time monitoring of an enterprise, leasing vehicle management, leasing user warning and monitoring and the like of the user on the handheld terminal are solved; by automatic flow-type leasing, actions of car seeking, car driving, vehicle starting and the like of the user are facilitated, other devices are not needed to be additionally arranged, and the safety and the convenience are ensured; and meanwhile, the management of the enterprise on the vehicle is more timely and thorough.
Owner:WUHAN UNIV OF TECH

Elevator integrated management system and elevator integrated management method

The invention discloses an elevator integrated management system and an elevator integrated management method. The elevator integrated management system comprises an elevator integrated service management platform, an elevator mobile management platform, an elevator user service platform and an elevator integrated monitoring platform and performs comprehensive supervision on elevator utilization registration, basic information, geographic information, inspection and detection, maintenance, fault repair requests, elevator operating personnel information and the like. The elevator integrated service management platform is used for storing and managing elevator information such as the basic information, working processes, service and failure alarming, operating states and video monitoring; the elevator mobile management platform is used for recording elevator related working processes in real time and achieving elevator data inquiring and working plan management; the elevator user service platform is used for receiving public telephone repair requests, coordinating maintenance and performing emergency rescuing; and the elevator integrated monitoring platform monitors the operating states and audio and video of the elevator in real time to achieve failure alarming and recording, monitoring video recording and analysis recording of the elevator operating states.
Owner:FUJIAN YIANG ELECTROMECHANICAL CO LTD

Heating and/or air conditioning system having a decentralized air-conveying device

A heating and / or air conditioning system for an interior of a vehicle has a central heating and / or cooling device and a decentralized air-conveying device which includes a plurality of air-conveying units arranged locally in the vehicle interior. In order to permit good regulation of the heating and / or air conditioning system and efficient air conditioning, respective air-conveying units of the decentralized air-conveying device are arranged in a plurality of subspaces of the vehicle interior for circulating air in the respective subspaces.
Owner:DAIMLER AG
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