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    • 10. 发明授权
    • Microfabricated instrument for tissue biopsy and analysis
    • 用于组织活检和分析的微型仪器
    • US5985217A
    • 1999-11-16
    • US895786
    • 1997-07-17
    • Peter A. KrulevitchAbraham P. LeeM. Allen NorthrupWilliam J. Benett
    • Peter A. KrulevitchAbraham P. LeeM. Allen NorthrupWilliam J. Benett
    • G01N1/06G01N1/31B01L11/00
    • G01N1/31G01N1/06Y10T83/222Y10T83/9493
    • A microfabricated biopsy/histology instrument which has several advantages over the conventional procedures, including minimal specimen handling, smooth cutting edges with atomic sharpness capable of slicing very thin specimens (approximately 2 .mu.m or greater), micro-liter volumes of chemicals for treating the specimens, low cost, disposable, fabrication process which renders sterile parts, and ease of use. The cutter is a "cheese-grater" style design comprising a block or substrate of silicon and which uses anisotropic etching of the silicon to form extremely sharp and precise cutting edges. As a specimen is cut, it passes through the silicon cutter and lies flat on a piece of glass which is bonded to the cutter. Microchannels are etched into the glass or silicon substrates for delivering small volumes of chemicals for treating the specimen. After treatment, the specimens can be examined through the glass substrate. For automation purposes, microvalves and micropumps may be incorporated. Also, specimens in parallel may be cut and treated with identical or varied chemicals. The instrument is disposable due to its low cost and thus could replace current expensive microtome and histology equipment.
    • 微生物活检/组织学仪器具有优于常规方法的几个优点,包括最小的样品处理,具有能够切割非常薄的样品(约2微米或更大)的原子清晰度的平滑切割边缘,微量体积的用于处理 标本,低成本,一次性,制造过程,使无菌部件和易于使用。 切割器是包括硅块或硅衬底的“干酪磨”式设计,其使用硅的各向异性蚀刻来形成非常清晰和精确的切割边缘。 当样品被切割时,它通过硅切割器并且平坦地放置在粘合到切割器上的一块玻璃上。 将微通道蚀刻到玻璃或硅衬底中,用于递送少量用于处理样品的化学品。 处理后,可以通过玻璃基板检查样品。 为了自动化,可以并入微阀和微型泵。 此外,可以用相同或不同的化学物质来切割并处理标本。 该仪器由于成本低,因此可以替代当前昂贵的切片机和组织学设备。