FIELD: medicine. SUBSTANCE: working member located inside extended casing is introduced into cavity. Casing is turned to required position and fixed in the latter. Working member is straight or bent, or it has straight or bent sections with 2- or 6-fold relation of lengths and chords, respectively. Working member opens at required angle by means of internal tie-rod, transverse, longitudinal blades or blades bent in plane, or by handles fixed by rack. EFFECT: improved contact of working member with tissues, enhanced needle controllability. 7 dwg
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Authors
Dates
1998-10-10—Published
1997-08-29—Filed