Захаров Владимир Анатольевич (RU),Королев Михаил Николаевич (RU),Ладьянов Владимир Иванович (RU),Молин Сергей Михайлович (RU),Фахреев Ильфат Исмагилович (RU),Фахреев Ильдар Ильфатович (RU)
申请号：
RU2012131445/14
公开号：
RU00123661U1
申请日:
2012.07.20
申请国别(地区):
RU
年份:
2013
代理人:
摘要：
The utility model relates to medicine and can be used to regulate the anatomical openings, in particular for plastics holes heart valves, intended to simplify the device and increase the clamping force of the ring yarn. The apparatus comprises an annular shell and arranged inside the housing, coupling device and the thread yarns stepwise displacement and fixing it. One end of the thread connected to the housing, and another - with stepwise displacement device yarn, and yarn holding means is designed as a single-acting retaining element. Thread portion cooperating with a stepwise displacement device is formed threaded as well. stepwise displacement device comprises a thread nut cooperating with the threaded portion of the thread. On one side is the drive nut and, on the other hand - a first flange fixed to the housing. The actuator comprises a washer, a second flange fixed to the housing and a sleeve extending therebetween, formed from a shape memory material and thermally controlled by heaters operating in torsion. One end of the sleeve is fixedly mounted on the second flange and the second end of the sleeve is formed with a washer interacting with the ability of mutual axial displacement. Washer spring-loaded relative to the sleeve or the second flange, or the housing, and the ends of the nut formed with toothed belts, toothed belts cooperating with the first flange and the drive washers secured sided turning nut. The second end of the sleeve can be made spring-loaded relative to the second flange or housing in a direction opposite to the twisting of the sleeve, the threaded portion of the thread has a longitudinal groove or Lyska, and the first flange is provided with a projection cooperating with a groove or flattened threads. Heater filament drive sleeve may be formed as a sleeve of metal with low electric resistance, the female thread drive sleeve. 3 ZP f ly-1-yl.Полезная модель относится к области медицины и может быть использована для регулирования анатомичес
