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    • 3. 发明授权
    • Focused radiation collimator
    • 聚焦辐射准直仪
    • US06185278B2
    • 2001-02-06
    • US09339365
    • 1999-06-24
    • Michael P. ApplebyJoseph A. ButurliaIain FraserRobert F. Lynch
    • Michael P. ApplebyJoseph A. ButurliaIain FraserRobert F. Lynch
    • G21K104
    • G21K1/025
    • A focused radiation collimator for collimating radiation emitted from a radiation point source located at a substantially known focal distance from the collimator is disclosed. In one embodiment of the disclosed collimator, the collimator is formed by at least two collimator layer groups, aligned, stacked and bonded together immediately adjacent to one another. Each of the collimator layer groups have a plurality of layer group passages arranged there through in a predetermined pattern which is unique to the layer group but which, with the passages of the other collimator layer group in the aligned stack, additively form a plurality of collimator through channels which are substantially aimed at the radiation point source. Each collimating layer group is formed by at least two substantially identical radiation absorbing layers, aligned, stacked and bonded together immediately adjacent to one another. Each of the substantially identical radiation absorbing layers have a plurality of openings arranged there through in substantially the same predetermined pattern which, with the plurality of openings of the other radiation absorbing layer in the aligned stack, additively form the layer group passages. High aspect ratio collimators having very small diameter through channels can be efficiently made in accordance with the teachings of the disclosure.
    • 公开了一种用于准直来自位于与准直器基本上已知的焦距的辐射点源发射的辐射的聚焦辐射准直器。 在所公开的准直仪的一个实施例中,准直器由至少两个准直器层组形成,它们彼此对准,堆叠并结合在一起。 每个准直器层组具有多个层组通道,其中以预定图案布置在层上,该预定图案对于层组是唯一的,但是在对准的叠层中的另一个准直器层组的通道相加地形成多个准直器 通过基本上瞄准辐射点源的通道。 每个准直层组由至少两个基本上相同的辐射吸收层形成,其彼此对齐,堆叠并结合在一起。 基本上相同的辐射吸收层中的每一个具有多个通过基本上相同的预定图案布置在其上的开口,其中对准的叠层中的另一个辐射吸收层的多个开口相加地形成层组通道。 根据本公开的教导,可以有效地制造具有通过通道的非常小直径的高纵横比准直器。
    • 4. 发明授权
    • Inhalation exerciser
    • 吸入运动员
    • US4363328A
    • 1982-12-14
    • US204102
    • 1980-11-05
    • Victor L. PoirierStanley D. BuczakRobert F. LynchThomas R. Salvo
    • Victor L. PoirierStanley D. BuczakRobert F. LynchThomas R. Salvo
    • A61B5/093A61B5/08
    • A61B5/093
    • An inhalation device for use in breathing exercises is described. The exerciser includes a thin-walled bellows whose upper end is attached to a top housing member and whose lower end deflects upward upon withdrawal of air from an opening in the upper end of the bellows. Deflection of the bellows allows accurate measurement of the volume of air inhaled by a patient and a true indication whether an inhaled breath is being held. Slotted support arms connecting the top housing member and a bottom housing member permit collapse of the device for storage and shipment of the exerciser as a compact unit. A weight attached to the lower end of the bellows provides a biasing force to assure return of the bellows to a fully extended position even after long-term storage of the device in collapsed form.
    • 描述了用于呼吸训练的吸入装置。 锻炼者包括薄壁波纹管,其上端附接到顶部壳体构件,并且当从波纹管的上端中的开口抽出空气时,其下端向上偏转。 波纹管的偏转允许精确测量患者吸入的空气体积,以及是否持续吸入呼吸的真实指示。 连接顶部壳体构件和底部壳体构件的开槽支撑臂允许装置塌陷以便作为紧凑单元储存和运送锻炼者。 连接到波纹管的下端的重物提供偏压力,以确保波纹管返回到完全延伸的位置,即使在设备以塌缩形式长期储存之后。