[특허]Air cross grids for mammography and methods for their manufacture and use

[미국특허] Air cross grids for mammography and methods for their manufacture and use 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B44C-001/22 C23F-001/00
출원번호	US-0759798 (1996-12-03)
발명자 / 주소	Pellegrino Anthony J. Lyke Daniel N. Lieb David P. Buturlia Joseph A. Appleby Michael P.
출원인 / 주소	Thermo Trex Corporation
대리인 / 주소	Ware, Fressola, Van Der Sluys & Adolphson
인용정보	피인용 횟수 : 31 인용 특허 : 0

초록 ▼

Air cross grids, for absorbing scattered secondary radiation and improving X-ray imaging in general radiography and in mammography, are provided with a large plurality of open air passages extending through each grid panel. These passages are defined by two large pluralities of substantially parallel partition walls, respectively extending transverse to each other. Each grid panel is made by laminating a plurality of thin metal foil sheets photo-etched to create through openings defined by partition segments. The etched sheets are aligned and bonded to form the laminated grid panel, which is moved edgewise during the X-ray exposure to pass primary radiation through the air passages while absorbing scattered secondary radiation arriving along slanted paths.

대표청구항 ▼

[ What is claimed is:] [1.] A method of fabricating an air cross grid comprising the steps of:forming by chemical milling photo-etching, a plurality of metal foil sheets into a plurality of fine web structures each having a large plurality of openings therethrough, defined by two pluralities of partition segments extending in substantially transverse respective directions and preserved by photoresist during masking, ultraviolet irradiation and etching of the metal foil sheets,removing the remaining photoresist from each fine web structure,dipping each fine web structure in a liquid adhesive bath,moving each fine web upward from said liquid adhesive bath between two air knives directing compressed gas laterally toward each web and penetrating the openings therethrough, thereby removing all but a thin coating of liquid adhesive from the surfaces of said web structure,aligning each web structure in turn with an underlying web structure, with all of said openings substantially in registration, until the desired number of layers of aligned web structures have been combined to produce the required plurality of fine web structures,maintaining said aligned plurality of fine web structures in alignment while applying clamping pressure thereto for the time required for curing the liquid adhesive coatings, reby a sturdy, rigid air cross grid panel is produced having a large plurality of open air passages therethrough.

이 특허를 인용한 특허 (31) 인용/피인용 타임라인 분석

Klausz,R��my Andr��, Anti-scatter grid with mechanical resistance.
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Castleberry, Donald Earl, Anti-scatter grid, method, and apparatus for forming same.
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Donald Earl Castleberry, Anti-scatter grid, method, and apparatus for forming same.
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Tang,Cha Mei; Makarova,Olga V., Anti-scatter grids and collimator designs, and their motion, fabrication and assembly.
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Tang,Cha Mei; Makarova,Olga V., Anti-scatter grids and collimator designs, and their motion, fabrication and assembly.
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Souchay,Henri; Klausz,Remy; Bacher,Guillaume; Richou,Bruno Gilles, Antiscattering grid and a method of manufacturing such a grid.
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Dobbs, John M., Apparatus and method for making X-ray anti-scatter grid.
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Appleby,Michael; Fraser,Iain; Atkinson,James E., Devices, methods, and systems involving cast collimators.
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Appleby, Michael; Fraser, Iain; Atkinson, James E., Devices, methods, and systems involving cast computed tomography collimators.
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Appleby,Michael; Fraser,Iain; Atkinson,James E., Devices, methods, and systems involving castings.
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Appleby,Michael; Fraser,Iain; Atkinson,James E., Devices, methods, and systems involving castings.
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Appleby Michael P. ; Buturlia Joseph A. ; Fraser Iain ; Lynch Robert F., Focused radiation collimator.
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Vogtmeier, Geroen, Grid and method of manufacturing a grid for selective transmission of electromagnetic radiation, particularly X-ray radiation for mammography applications.
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Such, Olaf; Lauter, Josef; Schneider, Stefan; Wieczorek, Herfried, Grid for the absorption of X-rays.
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Dobbs, John M., Method for making X-ray anti-scatter grid.
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Amrich, Mark P., Method for making a mesh-and-plate surgical implant.
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Eidam, Rico; Hoheisel, Martin; Sch?fer, Martin; Sklebitz, Hartmut; Strattner, Peter, Method for producing a scattered radiation grid or collimator.
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Amrich, Mark P.; Buturlia, Joseph; Lynch, Robert F.; Rolfe, Jonathan L., Method for producing undercut micro recesses in a surface, a surgical implant made thereby, and method for fixing an implant to bone.
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Zhang, Yuexing; Gagnon, Daniel; Wang, Xiaolan, Method to fabricate collimator structures on a direct conversion semiconductor X-ray detector.
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Appleby, Michael P.; Fraser, Iain; Atkinson, James E., Methods for manufacturing three-dimensional devices and devices created thereby.
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Appleby, Michael P.; Fraser, Iain; Atkinson, James E., Methods for manufacturing three-dimensional devices and devices created thereby.
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Appleby, Michael P.; Fraser, Iain; Atkinson, James E., Methods for manufacturing three-dimensional devices and devices created thereby.
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Appleby, Michael; Fraser, Iain; Atkinson, James E., Methods for manufacturing three-dimensional devices and devices created thereby.
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Appleby,Michael P.; Fraser,Iain; Atkinson,James E., Methods for manufacturing three-dimensional devices and devices created thereby.
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Appleby, Michael P.; Randolph, William T.; Klinger, Jill E., Systems for large area micro mechanical systems.
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Appleby, Michael P.; Fraser, Iain; Paulus, John, Systems, devices, and/or methods for manufacturing castings.
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Appleby, Michael; Fraser, Iain; Paulus, John, Systems, devices, and/or methods for manufacturing castings.
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Appleby, Michael; Paulus, John; Fraser, Iain; Klinger, Jill; Heneveld, Benjamin, Systems, devices, and/or methods for producing holes.
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Amrich, Mark; Rolfe, Jonathan; Buturlia, Joseph; Lynch, Robert, Textured surface having undercut micro recesses in a surface.
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Amrich,Mark; Rolfe,Jonathan L.; Buturlia,Joseph; Lynch,Robert F., Textured surface having undercut micro recesses in a surface.
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Tang, Cha-Mei, Two-dimensional, anti-scatter grid and collimator designs, and its motion, fabrication and assembly.
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A	생활필수품
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Air cross grids for mammography and methods for their manufacture and use 원문보기