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    • 1. 发明授权
    • Method and apparatus for fabrication of three-dimensional articles by
thermal spray deposition
    • 通过热喷涂沉积制备三维制品的方法和装置
    • US5126529A
    • 1992-06-30
    • US620745
    • 1990-12-03
    • Lee E. WeissFritz R. PrinzE. Levent Gursoz
    • Lee E. WeissFritz R. PrinzE. Levent Gursoz
    • C23C4/02B22F3/115B29C67/00C23C4/12C23C4/18
    • B29C67/0092B22F3/115B29C67/0074G05B2219/49016G05B2219/49039Y10T29/49986
    • A method and apparatus for forming a three-dimensional object by thermal spraying utilizes a plurality of masks positioned and removed over a work surface in accordance with a predetermined sequence. The masks correspond to cross sections normal to a centerline through the workpiece. One set of masks defines all cross sections through the workpiece. A second set of masks contains at least one masks which corresponds to each mask of the first set. Masks from each set are alternatively placed above a work surface and sprayed with either a deposition material from which the workpiece will be made or a complementary material. In this manner, layers of material form a block of deposition material and complementary material. Then, the complementary material which serves as a support structure during forming is removed. Preferably, the complementary material has a lower melting temperature than the deposition material and is removed by heating the block. Alternatively, one could mask only for the deposition material and remove complementary material overlying the deposition material after each spraying of complementary material.
    • 通过热喷涂形成三维物体的方法和装置利用根据预定顺序在工作表面上定位和移除的多个掩模。 掩模对应于垂直于通过工件的中心线的横截面。 一组掩模定义了穿过工件的所有横截面。 第二组掩模包含至少一个对应于第一组的每个掩模的掩模。 每个组的面罩可替换地放置在工作表面上方,并喷涂有将由其制造工件的沉积材料或互补材料。 以这种方式,材料层形成沉积材料块和互补材料。 然后,去除在成形期间用作支撑结构的互补材料。 优选地,互补材料具有比沉积材料更低的熔化温度,并且通过加热块来除去。 或者,可以在每次喷涂互补材料之后,仅掩盖沉积材料并除去覆盖沉积材料的互补材料。
    • 9. 发明申请
    • Device for Intramyocardial Delivery
    • 心肌内输送装置
    • US20130197468A1
    • 2013-08-01
    • US13751414
    • 2013-01-28
    • David SCHWARTZMANLee E. WeissPhil Gordon CampbellGary K. Fedder
    • David SCHWARTZMANLee E. WeissPhil Gordon CampbellGary K. Fedder
    • A61M5/00
    • A61M5/00A61B5/0215A61B5/14503A61B5/14532A61B5/14539A61B17/068A61B2017/00004A61B2017/00022A61B2017/00243A61B2017/00893A61B2017/0648A61L27/3633A61L27/54
    • Methods and apparatuses for delivery of biologically active material and/or sensors to a target organ or system. The apparatuses allow for specific, controlled delivery of the biologically active material and targeted placement of sensors. The apparatuses may be fabricated from cellular and/or acellular biological active components to promote integration of sensors into tissue and achieve appropriate release of biologically active molecules. The apparatuses may be fabricated from plasma-containing materials or other biopolymers such that the apparatus will resorbed into the tissue following insertion. The biologically active cellular or acellular component may be incorporated into that material may then serve as the source of the therapeutic biologically active component. The apparatus may take the form of a screw, though numerous shapes arc contemplated. The delivery methods and apparatuses of the present invention may be employed in a wide variety of physiological and medical situations, with cardiac implementations being particularly appropriate.
    • 用于将生物活性物质和/或传感器递送至靶器官或系统的方法和装置。 这些装置允许生物活性材料的特定的,受控的输送和传感器的目标放置。 这些装置可以由细胞和/或细胞生物活性成分制成,以促进传感器集成到组织中并实现生物活性分子的适当释放。 这些装置可以由含等离子体的材料或其他生物聚合物制成,使得装置在插入后将被吸收到组织中。 可以将生物活性细胞或非细胞成分掺入,然后该物质可以用作治疗性生物活性成分的来源。 该装置可以采用螺钉的形式,尽管预期了许多形状。 本发明的递送方法和装置可以用于各种生理和医学情况,其中心脏实施是特别合适的。