A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 9/00 (2006.01) A61F 9/007 (2006.01) A61B 17/32 (2006.01) A61M 1/00 (2006.01)
Patent
CA 2098403
2098403 9210139 PCTABS00013 Tissue scraper element for medical use in extracting undesired body tissue, e.g. a natural eye lens, by mechanical vibratory contact to disintegrate the tissue and by accompanying flushing fluid flow removal of the disintegrated tissue from the tissue site, the element including a longitudinal shank whose base end in use is mounted on a hand held instrument for longitudinal back and forth vibratory movement, and whose free end terminates in a tip extending crosswise of the shank longitudinal axis. The shank has an internal flow passage, and the tip terminates in a laterally outwardly directed scraper edge and has an internal flow channel communicating the shank passage with a mouth adjacent the scraper edge. Upon contacting the scraper edge against the undesired tissue in a direction crosswise of the shaft longitudinal axis, while subjecting the shank and tip to such vibratory movement and accompanying flushing fluid flow via the tip mouth, the tissue will be disintegrated and removed.
Alcon Laboratories Inc.
Mccarthy Tetrault Llp
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