MP Whitman, JE Burbank, J Hill… - US Patent …, 2011 - freepatentsonline.com A surgical device is described. The surgical device may comprise a rotatable cutter configured to cut tissue for insertion of a cannula, and a first driver configured to be driven by a motor arrangement and to rotate the cutter. The surgical device may further include, for example, the cannula, ... Cached
MP Whitman, JP Burbank, J Hill… - US Patent …, 2011 - freepatentsonline.com A surgical device is described. The surgical device may comprise a rotatable cutter configured to cut tissue for insertion of a cannula, and a first driver configured to be driven by a motor arrangement and to rotate the cutter. The surgical device may further include, for example, the cannula, ... Cached
MP Whitman, JE Burbank, J Hill… - US Patent …, 2011 - freepatentsonline.com A surgical device is described. The surgical device may comprise a rotatable cutter configured to cut tissue for insertion of a cannula, and a first driver configured to be driven by a motor arrangement and to rotate the cutter. The surgical device may further include, for example, the cannula, ... Cached
MP Whitman, JP Burbank, J Hill… - US Patent 7,905,897, 2011 - Google Patents US 7,905,897 B2 Page 2 US PATENT DOCUMENTS 4,940,468 A 7/1990 Petillo 4,998,527 A * 3/1991 Meyer 600/104 5.012.582 A * 5/1991 Bristol etal 30/391 5,030,206 A 7/1991 Lander 5,047,026 A 9/1991 Rydell 5,059,203 A 10/1991 Husted 5,112,272 A * 5/1992 Andersen ... Related articles - All 3 versions
C Maher… - Obstetrics & Gynecology, 2011 - journals.lww.com The randomized controlled trial conducted by Withagen et al 1 fails to control selection, to report bias, and to report a meaningful definition of objective assessment. Allocation concealment is an important tool, one not utilized in this study, which minimizes the risk of selection bias ... Related articles - All 2 versions
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