摘要:
The disclosure provides for a multi-layer adhesive for reducing squeeze out. The multi-layer adhesive comprises a first adhesive layer having a first adhesive property and a second adhesive layer having a second adhesive property. The second adhesive property is different from the first adhesive property. The first adhesive layer and the second adhesive layer form a film adhesive. In another embodiment, the disclosure provides a structure comprising a first component and a second component bonded with the multi-layer adhesive of the disclosed embodiments.
摘要:
There is provided a multi-layer adhesive for reducing squeeze out. The multi-layer adhesive comprises a first adhesive layer having a first adhesive property and a second adhesive layer having a second adhesive property. The second adhesive property is different from the first adhesive property. The first adhesive layer and the second adhesive layer form a film adhesive. In another embodiment, there is provided a structure comprising a first component and a second component bonded with the multi-layer adhesive.
摘要:
An integral conduit (407) in the formed of stepped tubing defines at least part of a drainage flow path (408/408′) that accommodates a flow rate of at least about 0.15 microliters/minute/mm2/mm-Hg out of the anterior chamber (284) of the eye (266). One or more flow modules (415) may be disposed within this drainage flow path (408/048′) and are located exteriorly of the eye (266). Each flow module (415) may be in the form of a filter or a pressure regulator. In one embodiment, one flow module (415) in the form of a filter is used in combination with another flow module (415) in the form of a pressure regulator.
摘要翻译:由阶梯式管形成的整体导管(407)限定了至少一部分排放流路(408/408'),其适应于至少约0.15微升/分/ mm 2 / / mm-Hg离开眼睛的前房(284)。 一个或多个流动模块(415)可以设置在该排水流动路径(408/048')内并且位于眼睛外部(266)处。 每个流动模块(415)可以是过滤器或压力调节器的形式。 在一个实施例中,一个过滤器形式的一个流动模块(415)与压力调节器形式的另一个流动模块(415)结合使用。
摘要:
Methods and systems for electronically scanning within a three dimensional volume while minimizing the number of system channels and associated cables connecting a two-dimensional array of elements to an ultrasound system are provided. Larger apertures can be utilized with existing 2D transducer electronics, whose purpose is to reduce the number of conductors in the transducer cable, by having the partially beam formed sub-arrays consist of a sub-array(s) of configurable elements. Exemplary 2D transducer electronics include electronics for the entire beam forming process, partial beam forming, e.g. delaying in time and summing of signals, walking aperture multiplexing, e.g. sequential sub-array actuation, sub-aperture mixing, e.g. delaying in phase and summing, time division multiplexing, e.g. sub-dividing and allocating available bandwidth as a function of time, and frequency division multiplexing, e.g. sub-dividing and allocating available bandwidth as a function of frequency.
摘要:
Using configurable arrays, synthetic aperture processes may be used along an elevation dimension for increasing resolution. The increased resolution is used for two-dimensional or three-dimensional imaging. Alternatively or additionally, wide band synthetic elevation aperture focusing processes, such as beamformation, are provided along the elevation dimension to increase resolution. In yet another alternative or additional embodiment, a transducer is rotated about a center of the transducer within the elevation and azimuth plane. An aperture associated with the transducer is mechanically or electronically rotated, and ultrasound data acquired associated with a plurality of different positions. The ultrasound data is then used for synthetic elevation aperture processing. In yet another alternative or additional embodiment, multiple scanning modes are provided. In a survey mode, imaging is provided without synthetic elevation aperture processing. For greater detailed imaging, imaging is responsive to synthetic elevation aperture processes with different elevation focusing and scanning.
摘要:
Sound absorption backings for ultrasound transducers are provided. A block of material with similar acoustic impedance to the transducer material is provided adjacent to the material. For example, a solid metal block of material with acoustic impedance that is similar to the acoustic impedance of silicon substrate used for a CMUT is provided. Since the solid block of material may provide high heat conductivity and a stiff mechanical support without acoustic attenuation, the block is formed to prevent reflections of acoustic energy back toward the sensor. In one embodiment, a Rayleigh dump is formed on a surface of the solid block of material away from the transducer material. Acoustically absorbing materials are provided along the surface with the Rayleigh dump. As acoustic energy propagates towards the surface, the acoustic energy is reflected at angles away from the transducer material. Some of the acoustic energy propagates through the surface into the attenuating material. After multiple reflections within the Rayleigh dump, the acoustic energy is eventually dissipated through the acoustic attenuation of the additional material alongside the surface.
摘要:
Disclosed embodiments allow telephony services of different types to be provided by a telephone company at a service platform for telephone calls received at a local telephone exchange belonging to the telephone company, but which does not itself support services those different types of services. Additional embodiments allow for disabling a subscriber-configurability feature for a service of a first service type on the local exchange so as to prevent or inhibit a subscriber from configuring a setting which may interfere with services provided on the service platform.
摘要:
Various embodiments of MEMS flow modules that regulate flow or pressure by the pivoting or pivoting-like movement of a flow regulating or controlling structure are disclosed. One such MEMS flow module (40) has a flow regulating structure (62) including a plurality of baffles (66) and a flow plate (50) including a plurality of flow ports (52). The flow regulating structure (62) also has a support (64) that is spaced from and anchored to the flow plate (50). Each baffle (66) is aligned with at least one flow port (52) and is interconnected to the support (64) of the flow regulating structure (62) in a manner that allows the baffles (66) to flex away from the flow plate (50) based upon the development of at least a certain differential pressure across the MEMS flow module (40).
摘要:
A position of an imaging plane relative to a catheter or other probe is aligned with tissue of interest. Ultrasound tissue images may be registered to the catheter position with minimal rotational ambiguity. The spatial position of an ablation catheter or other device with respect to the imaging plane is more accurately determined, allowing a physician to identify specific anatomy in the relative location of a catheter or catheters. Another alternative or additional approach to determining the position of an imaging plane is to determine the relative position of two or more catheters. A catheter associated with imaging is then moved or bent in a direction having a known spatial relationship with the imaging plane. The position of the catheter is relative to each is then determined again to determine the angle or position of the imaging plane. In addition or as an alternative to determining an angular position of an imaging plane relative to a catheter, an ultrasound image of tissue is generated with acoustic elements for position identification. The acoustic elements are used as an imaging transducer array as well as devices for determining relative positions of the catheters.
摘要:
Endocavity and invasive catheter transducers for four-dimensional or other imaging are provided. A two-dimensional or other multi-dimensional array of elements is connected with a minimum number of conductors to an imaging system. One or more conductors are used to select an aperture, such as selecting one or more rows of elements for activation. Along a different axis, such as an orthogonal axis, elements are used to image a planar region. By electronically switching the selected aperture, different planes are rapidly imaged. A matrix configuration of electrodes, such as using column electrodes for phased array imaging and row electrodes for selecting an elevation aperture allows for rapid acquisition of ultrasound data.