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METHOD AND APPARATUS FOR SUBSURFACE TISSUE SAMPLING
专利权人:
William G. Austen
发明人:
William G. Austen
申请号:
US14234006
公开号:
US20140296741A1
申请日:
2012.07.20
申请国别(地区):
US
年份:
2014
代理人:
摘要:
Exemplary embodiments of method and apparatus are provided for removing a subsurface sample of a biological tissue while leaving the overlying tissue substantially undamaged. A hollow needle can be provided that includes an opening in the wall and a protruding cutting edge adjacent to the opening. A sliding sleeve can be provided over a portion of the needle. The needle and sleeve can be advanced into the tissue such that the cutting edge is deeper than the distal end of the sleeve. The needle may then be withdrawn while holding the sleeve stationary, such that a sample is severed by the cutting edge and directed into the hollow needle through the opening, until the cutting edge reaches the end of the sleeve. The sleeve and needle containing the sample can then be withdrawn from the tissue together.
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