| 摘要 |
FIELD: medical instruments. ^ SUBSTANCE: ophthalmologic needle holder can be used in eye surgery for putting seams. Ophthalmologic needle holder has movable crossing branches with support parts. Support parts are provided with knurling for fingers at sides and they are connected with springing plates at one end of support parts. Elongated working parts with jaws are disposed at other end of support parts; working parts are connected by axis mounted in lock. Elongated working parts are curved in form of arc. Arc is oriented at angle to plane of movement of branches. Length of arc is at least twice longer than length of arc-shaped part which lasts from clamping jaws to axis. Chord of arc is at least 3,5 times longer than its sag. Length of lock's arc is at least 1,5 length of arc of elongated working parts. ^ EFFECT: reduced traumatism of operation; improved efficiency of surgical operation. ^ 3 cl, 1 dwg |
