Савельева Валентина Николаевна (RU),Бердников Алексей Владимирович (RU),Бельский Алексей Михайлович (RU)
申请号：
RU2016129396/14
公开号：
RU00166193U1
申请日:
2016.07.18
申请国别(地区):
RU
年份:
2016
代理人:
摘要：
The invention relates to medical devices, and is designed for the study of hemodynamics. The technical result, which aims at achieving a useful model - improving measurement accuracy by increasing the noise immunity due to excluding the venous component, and scanning capabilities time interval within the pulse wave. An apparatus for measuring the velocity of blood flow includes a generator of magnetic tags 1, two channels of measurement and compensation, which consist of series connected sensor magnetic induction 4, 9, amplifier 5, 10 and low pass filters 6, 11, which are connected to the inputs of the differential amplifier 12 whose output via a first pulse former 13 connected to an input of comparator 14, the other input of which is connected the second pulse shaper 15, a trigger generator magnetic mark. The measuring and compensating channels include concentrators of magnetic field 2, 7, which are installed on the magnetic induction sensors 4, 9, and a negative feedback coil 3, 8, connected to the outputs of the respective filters 6, 11. Put the pulse wave sensor 17 connected to the input of the second PFN through a scanning pulse generator 18, an adjustable time shift signal device 19 as well as to the inputs of low pass filters, and the output of comparator 14 connected to the blood flow rate calculator and 16. The technical and economic efficiency of the utility model is to improve measurement accuracy by introducing a pulse wave sensor apparatus, a scanning pulse generator, adjustable time shift signal device.1 Fig.Полезная модель относится к медицинской технике и предназначена для исследования гемодинамики. Технический результат, на достижение которого направлена полезная модель - повышение точности измерения за счет повышения помехоустойчивости, обусловленной исключением венозной составляющей и возможности сканирования временного интервала в пределах пульсовой волны. Устройство для измерения скорости кровотока включает в себя генератор магнитной метки 1, дв
