Surgery – Diagnostic testing – Sampling nonliquid body material
Patent
1997-04-22
1999-02-16
Hindenburg, Max
Surgery
Diagnostic testing
Sampling nonliquid body material
600565, 604 22, A61B 1000
Patent
active
058714545
ABSTRACT:
An elongate outer sleeve is mounted on a support and defines an axis and distal and proximate ends in relation to said support. An elongate inner tube is generally coaxial with and contained within said outer sleeve. A drive selectively rotates the inner tube about the axis relative to the outer sleeve. The outer sleeve is mounted for selected movement along the axis relative to the inner tube between a first position in which the remote end of the inner tube in contained within and covered by the outer sleeve and a second position in which the remote end of the inner tube is exposed, the inner tube being provided at the remote end with a cutting assembly consisting of a plurality of blade elements radially spaced about the axis and biassed to urge the blade elements to expand outwardly into their normal operative cutting positions when moved exteriorly of the remote end of the outer sleeve, adjacent blade elements being collapsible for containment within the outer sleeve and forming laterally-directed opening which communicate with a channel within the inner tube. Carrier fluid is dispensed at the remote end of the outer sleeve. A receptacle is provided for collecting tissue excised by the expanded blades carried through the inner tube from the remote to the proximate ends by the carrier fluid. Also, a source of suction is provided for extracting cells and tissue excised by the blade elements and transported by the carrier fluid through the inner tube and into the means for collection.
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Hindenburg Max
Marmor II Charles
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