Abstract:
Disclosed herein are representative embodiments of methods, apparatus, and systems used to deliver a prosthetic heart valve to a deficient valve. In one embodiment, for instance, a support structure and an expandable prosthetic valve are advanced through the aortic arch of a patient using a delivery system. The support structure is delivered to a position on or adjacent to the surface of the outflow side of the aortic valve (the support structure defining a support-structure interior). The expandable prosthetic valve is delivered into the aortic valve and into the support-structure interior. The expandable prosthetic heart valve is expanded while the expandable prosthetic heart valve is in the support-structure interior and while the support structure is at the position on or adjacent to the surface of the outflow side of the aortic valve, thereby causing one or more native leaflets of the aortic valve to be frictionally secured between the support structure and the expanded prosthetic heart valve.
Abstract:
A technique for realizing module size reduction while enhancing the anti-ESD characteristic of a low frequency band circuit without the need to add such an element as an ESD filter. In a diplexer included in a high-frequency power amplifier module, a composite grounding inductor with respect to an antenna terminal is formed of three inductors including a series inductor contained in a lowpass filter. Since an ESD signal contains main components thereof belonging to a frequency band of the order of a few hundreds of MHz or lower, the ESD signal is allowed to pass through a lowpass filter with little to no attenuation. Under this condition, a function for ESD filtering from the antenna terminal to an antenna switch circuit is provided by using the composite grounding inductor mentioned above and an electrostatic capacitor element, thereby suppressing passage of the ESD signal to the antenna switch circuit.
Abstract:
High-frequency couplers and coupling techniques are described utilizing artificial composite right/left-handed transmission line (CRLH-TL). Three specific forms of couplers are described; (1) a coupled-line backward coupler is described with arbitrary tight/loose coupling and broad bandwidth; (2) a compact enhanced-bandwidth hybrid ring coupler is described with increased bandwidth and decreased size; and (3) a dual-band branch-line coupler that is not limited to a harmonic relation between the bands. These variations are preferably implemented in a microstrip fabrication process and may use lumped-element components. The couplers and coupling techniques are directed at increasing the utility while decreasing the size of high-frequency couplers, and are suitable for use with separate coupler or couplers integrated within integrated devices.
Abstract:
An ultrasonic lithotripter comprising a first transmission probe which has a hollow portion in the form of a through hole and transmits ultrasonic vibration and a superfine second transmission probe which can be passed through the hollow portion of the first transmission probe. An object of manipulation is held by means of the second transmission probe as it is manipulated by means of the first transmission probe.
Abstract:
A technique for realizing module size reduction while enhancing the anti-ESD characteristic of a low frequency band circuit without the need to add such an element as an ESD filter. In a diplexer included in a high-frequency power amplifier module, a composite grounding inductor with respect to an antenna terminal is formed of three inductors including a series inductor contained in a lowpass filter. Since an ESD signal contains main components thereof belonging to a frequency band of the order of a few hundreds of MHz or lower, the ESD signal is allowed to pass through a lowpass filter almost intactly. Under this condition, a function for ESD filtering from the antenna terminal to an antenna switch circuit is provided by using the composite grounding inductor mentioned above and an electrostatic capacitor element, thereby suppressing passage of the ESD signal to the antenna switch circuit.
Abstract:
To effectively reduce a measurement error in a parameter indicating a state of spectroscopic polarization generated by variations in retardation of a retarder due to a temperature change or other factors, while holding a variety of properties of a channeled spectroscopic polarimeter. By noting that reference phase functions φ1(σ) and φ2(σ) are obtained by solving an equation from each vibration component contained in a channeled spectrum P(σ), the reference phase functions φ1(σ) and φ2(σ) are calibrated concurrently with measurement of spectrometric Stokes parameters S0(σ), S1(σ), S2(σ), and S3(σ).
Abstract:
A parallel resonant circuit is realized by stacking first to fourth wiring patterns each having at least an inductance element. One of the adjacent first and second wiring patterns is set to a signal input node and the other thereof is set to a signal output node. Then, the signal input node is connected to the signal output node via inductance elements of the first wiring pattern, third wiring pattern, fourth wiring pattern and second wiring pattern in order. By adjacently forming wiring layers of the signal input and output nodes, a capacitance value between the input and output nodes is increased compared to that when they are separated. Also, by increasing the line width of the first and second wiring patterns, the capacitance value can be further increased. Therefore, it is possible to achieve a large capacitance value in a small area and downsizing of the electronic device.
Abstract:
In a compact radio frequency module, a first chip forms a heater element and a second chip forms a device whose operating characteristics vary with temperature change or whose maximum operating temperature is lower than the maximum operating temperature of the first chip. A multilayer substrate has a plurality of dielectric layers and a plurality of conductor layers and mechanically supports the first chip and the second chip with some of the conductor layers electrically connected with these chips. The module can conduct the heat generated by the first chip throughout the module; guide the heat generated by the first chip from the module's top face side to its bottom face side; and interrupt the heat conduction from the first conductor pattern on which the first chip is placed to the second conductor pattern on which the second chip is placed.
Abstract:
A directional coupler with a high coupling per unit area and small variations in characteristic at manufacturing capable of achieving a high directivity easily and an RF circuit module provided with the directional coupler are achieved. A main-line is provided on a front surface of a multi-layer substrate, a ground plane is provided on a back surface of the multi-layer substrate. On an inner layer immediately under the main-line, two lines in parallel with the main-line are provided, and one line is provided on a layer closer to the ground plane than the two lines. By connecting the two lines and the one line with vias, a sub-line with a shape of a winding of a loop is formed. In the sub-line, a main component of a vector vertically penetrating the loop is horizontal with respect to the ground plane.
Abstract:
Light sources emit irradiation lights respectively, so that edge parts of mutual irradiation areas (inspection areas) are superposed one another. The imaging apparatus receives regular reflection lights and generates two images corresponding to each of the light sources. A main control part combines two images and determines presence/absence of a defect. By irradiating an inspected surface A with the irradiation lights from mutually different directions, a position of an area showing the defect in each image is slightly deviated. Therefore, even if a dimension of an area showing the defect is small in each image, by superposing two images one another, the dimension of the area showing a defect part becomes large in the image after composition. Thus, an accuracy of defect detection on the edge part of the inspection area can be improved.