990results about How to "Good electrical contact" patented technology

An electrically sensing and stimulating outer sheath for ensuring accurate surgical placement of a microsensor or a microstimulator near a nerve in living tissue is disclosed. The electrically sensing outer sheath may also be used to verify the function of the microstimulator or microsensor during surgical placement but before the outer sheath is removed. In the event that the microstimulator is not optimally placed near the nerve, or if the microstimulator is malfunctioning, this can be determined prior to removal of the outer sheath, thus reducing the possibility of nerve or tissue damage that might be incurred during a separate operation to remove the microstimulator.

A resonant tunneling diode, and other one dimensional electronic, photonic structures, and electromechanical MEMS devices, are formed as a heterostructure in a nanowhisker by forming length segments of the whisker with different materials having different band gaps.

The present invention is a system for providing baroreceptor stimulation comprising, a sensor to sense a physiologic parameter and provide a signal indicative of the physiologic parameter, a baroreceptor activation device, which includes, a pulse generator to intermittently generate a stimulation signal to provide baroreceptor stimulation for a baroreflex therapy, and a control system to adjust the stimulation signal based on the signal indicative of the physiologic parameter such that the stimulation signal provides a desired baroreceptor stimulation corresponding to a desired physiologic parameter.

An optical illuminator using Vertical Cavity Surface Emitting Laser (VCSEL) is disclosed. Optical modules configured using single VCSEL and VCSEL arrays bonded to a thermal submount to conduct heat away from the VCSEL array, are suited for high power and high speed operation. High speed optical modules are configured using single VCSEL or VCSEL arrays connected to a high speed electronic module on a common thermal submount or on a common Printed Circuit Board (PCB) platform including transmission lines. The electronic module provides low inductance current drive and control functions to operate the VCSEL and VCSEL array. VCSEL apertures are designed for a desired beam shape. Additional beam shaping elements are provided for VCSELs or VCSEL arrays, for desired output beam shapes and / or emission patterns. VCSEL arrays may be operated in continuous wave (CW) or pulse operation modes in a programmable fashion using a built-in or an external controller.

A horizontal germanium silicon heterostructure photodetector comprising a horizontal germanium p-i-n diode disposed over a horizontal parasitic silicon p-i-n diode uses silicon contacts for electrically coupling to the germanium p-i-n through the p-type doped and n-type doped regions in the silicon p-i-n without requiring direct physical contact to germanium material. The current invention may be optically coupled to on-chip and / or off-chip optical waveguide through end-fire or evanescent coupling. In some cases, the doping of the germanium p-type doped and / or n-type doped region may be accomplished based on out-diffusion of dopants in the doped silicon material of the underlying parasitic silicon p-i-n during high temperature steps in the fabrication process such as, the germanium deposition step(s), cyclic annealing, contact annealing and / or dopant activation.

An improved medical implant device is provided which has a plurality of micro-electrodes. The use of a plurality of micro-electrodes allows a clinically effective electrical stimulation pathway to be selected once the implant is positioned within or adjacent to the tissue to be treated even if the implant is not optimally placed or located. Thus, in cases where the implant is not optimally placed, it is not necessary to remove the implant and then reposition it within or adjacent to the tissue to be treated, thereby reducing stress to the patient caused by additional surgery. Moreover, using the micro-electrodes of this invention, directional electrostimulation can be provided to the tissue to be treated. Implant devices with a plurality of micro-electrodes are provided which are especially adapted for use in reducing the frequency and / or severity of neurological tremors. Other implant devices having micro-electrodes are provided which are especially adapted for electrostimulation and / or electrical monitoring of endo-abdominal tissue or viscera.

An electrode device is configured to be coupled to a parasympathetic site of a subject. A control unit is configured to drive the electrode device to apply a current in bursts of one or more pulses, during “on” periods that alternate with low stimulation periods, wherein at least one of the low stimulation periods immediately following the at least one of the “on” periods has a low stimulation duration equal to at least 50% of the “on” duration; set the current applied on average during the low stimulation periods to be less than 20% of the current applied on average during the “on” periods; and ramp a number of pulses per burst during a commencement of the at least one of the “on” periods and / or a conclusion of the at least one of the “on” periods.

An electrode for establishing electrical contact with the skin is disclosed, said electrode having a low impedance and comprising an electrically conductive metallic layer (4) and an electrically conductive gel (12) attached to said metallic layer, wherein the pH of the electrically conductive gel (12) is chosen so as to provide a corrosion of the metallic layer (4).

The present invention relates generally to multifunctional catheters for performing ablation procedures, and more particularly to ablation catheters utilized in the treatment of atrial fibrillation and other cardiac disorders. The present invention eliminates many of the problems associated with previous ablation catheters by providing an ablation treatment not dependent upon continuous lesions.

An electrode cap for obtaining EPM signals from a head of a subject, the cap comprising: (i) an insulating layer for positioning adjacent to the head of the subject; (ii) an electrically conductive layer comprising ionic conduction means, situated above the insulating layer so that in use, it is separated from the head of the subject by the insulating layer; (iii) a plurality of measurement signal electrodes extending through the electrically conductive layer and the insulating layer for contacting the head of the subject, the measurement signal electrodes being electrically insulated from the electrically conductive layer; and (iv) at least one reference node electrically connected to the electrically conductive layer;

A method is provided for treating respiration conditions of a patient. The method comprises monitoring or measuring a respiration parameter indicative of a need to modify activity of a baroreflex system of the patient, and controlling a baroreceptor activation device to cause or modify activation of a baroreflex response of the patient in response to the monitoring or measuring of the respiration parameter.

A port terminator includes an outer nut, which may be either electrically conductive or non-electrically conductive, and an electrically conductive ground insert. A portion of the ground insert captures a ground portion of a termination resistor, while a deformable portion of the ground insert makes electrical contact with a connection end of an equipment port when the port terminator is screwed onto the equipment port. The deformable portion can take the form of a flexible brim or a plurality of petals. The petals preferably alternate between flat petals and biased petals. The ground insert permits the port terminator to make a uniform RF seal on an equipment port even with a range of tightening torques.

A port terminator includes an outer nut, which may be either electrically conductive or non-electrically conductive, and an electrically conductive ground insert. A portion of the ground insert captures a ground portion of a termination resistor, while a deformable portion of the ground insert makes electrical contact with a connection end of an equipment port when the port terminator is screwed onto the equipment port. The deformable portion can take the form of a flexible brim or a plurality of petals. The petals preferably alternate between flat petals and biased petals. The ground insert permits the port terminator to make a uniform RF seal on an equipment port even with a range of tightening torques.

A light emitting device includes a substrate having a first surface and a second surface not parallel to the first surface, and a light emission layer disposed over the second surface to emit light. The light emission layer has a light emission surface which is not parallel to the first surface.

The invention relates to systems and methods for charging a vehicle. A vehicle and charging station can be designed such that an electric or hybrid vehicle can operate in a fashion similar to a conventional vehicle by being opportunity charged throughout a known route.

An electrical busway system comprising a busway uniquely configured for cutting to length in the field. Special connector devices are also disclosed, with features for engaging and immobilizing busway insulators to assure accurate initial alignment of conductors and contact elements prior to joining of connector devices with busway sections. An accessory device, specially adapted to the new busway design, includes a rotatable contact element, slideably received in its rotatable support, which progressively displaces a spring as the contact element is rotated into contact with a busbar carried by a busway insulator. Good electrical contact at both ends of the slideable contact element is assured. The accessory device also includes a positioning element which is rotatable with, but rotationally advanced with respect to, the contact elements, to accurately position, and substantially immobilize an insulator element prior to the contact elements being rotated into restricted, busbar-receiving recesses in the insulator element.

A composite hard mask is disclosed that enables sub-100 nm sized MTJ cells to be formed for advanced devices such as spin torque MRAMs. The hard mask has a lower non-magnetic metallic layer such as Ru to magnetically isolate an overlying middle metallic spacer such as MnPt from an underlying free layer. The middle metallic spacer provides a height margin during subsequent processing to avoid shorting between a bit line and the MTJ cell in the final device. An upper conductive layer may be made of Ta and is thin enough to allow a MTJ pattern in a thin overlying photoresist layer to be transferred through the Ta during a fluorocarbon etch without consuming all of the photoresist. The MTJ pattern is transferred through the remaining hard mask layers and underlying MTJ stack of layers with a second etch step using a C, H, and O etch gas composition.

An ultrasound transducer includes an array of PZT elements mounted on a non-recessed distal surface of a backing block. Between each element and the backing block is a conductive region formed as a portion of a metallic layer sputtered onto the distal surface. Traces on a longitudinally extending circuit board—preferably, a substantially rigid printed circuit board, which may be embedded within the block—connect the conductive region, and thus the PZT element, with any conventional external ultrasound imaging system. A substantially “T” or “inverted-L” shaped electrode is thereby formed for each element, with no need for soldering. At least one longitudinally extending metallic member mounted on a respective lateral surface of the backing block forms a heat sink and a common electrical ground. A thermally and electrically conductive layer, such as of foil, transfers heat from at least one matching layer mounted on the elements to the metallic member.

A semiconductor device includes a substrate comprising a first surface having a first orientation and a second surface having a second orientation and a plurality of III-V nitride layers on the substrate, wherein the plurality of III-V nitride layers are configured to emit light when an electric current is produced in one or more of the plurality of III-V nitride layers.

The invention relates to systems and methods for charging a vehicle. A vehicle and charging station can be designed such that an electric or hybrid vehicle can operate in a fashion similar to a conventional vehicle by being opportunity charged throughout a known route.

A composite hard mask is disclosed that enables sub-100 nm sized MTJ cells to be formed for advanced devices such as spin torque MRAMs. The hard mask has a lower non-magnetic metallic layer such as Ru to magnetically isolate an overlying middle metallic spacer such as MnPt from an underlying free layer. The middle metallic spacer provides a height margin during subsequent processing to avoid shorting between a bit line and the MTJ cell in the final device. An upper conductive layer may be made of Ta and is thin enough to allow a MTJ pattern in a thin overlying photoresist layer to be transferred through the Ta during a fluorocarbon etch without consuming all of the photoresist. The MTJ pattern is transferred through the remaining hard mask layers and underlying MTJ stack of layers with a second etch step using a C, H, and O etch gas composition.

An electrical connector for connecting low voltage device to an electrified ceiling framework. The connector includes a connector body and a conductive member attached to the connector body. The conductive member includes a contact portion configured to provide electrical contact to a conductive surface of the electrified ceiling framework. The connector is also configurable in a first position and a second position. The first position permits insertion of a portion of the connector into an opening in the electrified ceiling framework. The second position engages the electrified ceiling framework to provide an electrical connection and mechanical support to the connector and devices that may be attached thereto.

A semiconductor device includes a substrate comprising a first surface having a first orientation and a second surface having a second orientation and a plurality of III-V nitride layers on the substrate, wherein the plurality of III-V nitride layers are configured to emit light when an electric current is produced in one or more of the plurality of III-V nitride layers.

A process for assembling two parts of an integrated electronic circuit has two successive steps. During a first step, the two circuit parts are made into a single unit by molecular bonding, realized on respective application surfaces of the two parts. During a second step, electrical connections are formed from connection portions already present in the application surfaces of the two circuit parts. The connections formed extend across the bonding interface, and are compatible with a high reliability and a high level of integration of the circuit.

The present invention provides membrane cassettes and stacks thereof which are suitable for a use in a variety of electrochemical applications. The invention further provides membrane cassettes which comprise one or more bipolar plates which have one or two reactant or coolant flow fields consisting of at least one groove in opposing surfaces of the bipolar plate. In certain preferred embodiments, the invention provides cassettes and stacks which are suitable for use in fuel cell applications. Particularly preferred embodiments of the invention include design improvements which enhance the performance and reliability of certain components of the fuel cell stack.

An electrode assembly includes one or more electrode contact surfaces, and a cuff, to which the contact surfaces are fixed, and which comprises an electrically insulating material, is configured to assume open and closed positions, and, when in the closed position, is shaped so as to define a plurality of planar cross sections perpendicular to a longitudinal axis of the cuff, distributed continuously along an entire length of the cuff along the longitudinal axis, such that the perpendicular cross sections define respective inner closed curves that together define an inner surface that defines and completely surrounds a volume that extends along the entire length of the cuff. The inner closed curves of at least two of the perpendicular cross sections would cross, and not merely intersect, one another if superimposed while preserving orientation and position of the perpendicular cross sections with respect to the cuff. Other embodiments are also described.

The invention relates to frame structures, particularly to mobile stations and other small-sized portable devices operating at high frequencies. The frame structure according to the invention is formed by extrusion, whereby the fixing means required for fastening components are formed into it during the extrusion. Such fixing means are preferably pin-like projections which can be compressed to a rivet fixing the component. Such fixing means can also be strip-like fixing edges which are bent over the component edges. With such fixing means it is possible to form at the same time both a mechanical fixing and a good electrical contact between the component and the frame structure. During the extrusion it is also possible to fasten to the frame structure parts made of other materials, such as fixing means of other types or other components, such as antennas.

The invention relates to a phosphate material having a mesoporous structure for lithium secondary batteries and a preparation method thereof. The material having a mesoporous structure is secondary particles which have a mesoporous spherical or spheroid shape and are formed by the agglomeration of primary particles; the chemical composition of the material having the mesoporous structure is represented by the formula of LixAaMmBbPOzNn; the average particle diameter of the primary particles is 10nm to 1mum, the average particle diameter of the secondary particles is 100nm to 50mum, the average pore diameter of mesopores is 2 to 500nm; and the material having the mesoporous structure also comprises a layer of 2 to 100nm thick carbon coated outside the secondary particles and on the inner walls of the mesopores, wherein the content of the carbon accounts for 1 to 20 weight percent of the total weight of a substrate. The material is prepared by the steps of: firstly preparing pure-phase phosphate LiMPO4 or doped LiMPO4 sol; secondly, forming dry gel through heat treatment; and finally, forming the agglomerate secondary particles through sintering at high temperature. The phosphate material having the mesoporous structure can be directly used in secondary lithium batteries as an anode active material and can also be used by being mixed with the prior anode material as an additive. The material having the mesoporous structure can improve the rate performance and energy density of the prior anode material and batteries. The secondary lithium batteries containing the phosphate material having the mesoporous structure has high power density and high safety.

The invention relates to a shock-resistant and damp-proof power battery set which comprises an outer shell (1), a plurality of cells (2) arranged inside the outer shell (1) and a charging / discharging protection circuit board (3) in electric connection with the plurality of cells (2), wherein a support structure (5) constraining the positions of the plurality of cells (2) axially and radically is fixed in the outer shell (1), the plurality of cells (2) constrained in the support structure (5) are arranged with a clearance in between. The cells in the battery set can be positioned reliably to keep a sound electric contact, has very good shock-resistant performance and heat dispersion performance and is very suitable to be used on various power battery sets in shaking circumstances.