SU1229496A1 - Vacuum safety valve - Google Patents

Description

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The invention relates to a medical technique and can be used in surgical pneumatic-hydraulic systems to ensure safety of the patient when sucking various fluids, tissue particles and gases from surgical wounds and other cavities during and after surgery, sucking the secretions from the respiratory tract during anesthesia. , respiratory paralysis and lack of capsular reflex.

The purpose of the invention is to increase the reliability of the device when the specified vacuum is exceeded,

The goal is achieved by the fact that the thin-walled rubber tube is fixed with the ends on the smooth surface of the nipple ends using clamping clamps with the possibility of adjusting movements, others, with cutting, nipples are inserted into the canals of the patient’s hose sections, iarx clamps installed in guides with the possibility of adjusting movements, both clamping clamps are made with brackets, and in one of the brackets there is a hole with a left-hand thread, and in the other - with a right-handed oy5 in which the ends of the screws are installed respectively on the left and right-hand thread, and in the middle in: Inta fixedly mounted handwheel,

The drawing shows a vacuum safety valve.

Vacuum relief valve contains a thin-walled rubber tube I, fixed end sections on the cylindrical surface of the ends of the nipples 2 and 3 with the help of axle clamps 4 and 5 with the possibility of axial (adjusting)

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movements, others, with cutting, the ends of nipples 2 and 3 are inserted into the channels of the 6 to 7 hose (patient) segments, and are fastened at the beginning, Sreds7 in the settings of the overlap of the junction box in the form of clamp clamps 8 and 9,

Editor N.Danku, Lich Order 2438/36

Compiled by I. Pashchenko Tehred M. KhodaHmi

Corrector A

Tir.azh 880. Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

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mounted in guideways 10 with the possibility of adjusting movements, clamps 8 and 9 are made with brackets, the bracket I1 of the clamping clamp 8 has a hole with a left-hand thread, and the bracket 12 of the clamping clamp 9 has a hole with a right-hand thread. In the threads (1e holes of the brackets P and 12, located on the same longitudinal axis, the ends of the screw 13 are inserted, having respectively the left and right threads. In the middle part of the screw 13 the flywheel 14 is fixedly fixed.

Before starting the work, the vacuum safety valve must be laid, pirovan to a given vacuum. Adjustment can be carried out in two ways: by changing the span of the thin-walled tube 1, which is understood to be the distance of me- ture of the tube to the ends of the nipples 2 and 3, resulting in a change in the moment acting on the tube, directly the square of the span or the change in the moment of resistance of a thin-walled tube, i.e. by changing its wall thickness, since the diameter of the thin-walled tube remains constant. In the first case, clamp clamp 5 is depressed, alternatively it is possible to unclamp clamp 4 and 5 and flywheel 14 on screw 13, increase or reduce the span of thin-walled tube I, and with increasing span, the given amount of vacuum decreases. In the second case, the clamps 4 and b are unclenched, the thin-walled tube is 1 tube with a different wall thickness, and with an increase in the wall thickness, the magnitude of the specified vacuum decreases.

The device works as follows.

When a given vacuum value is exceeded, the thin-walled tube 1 collapses and reliably closes the duct of the pipeline,

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Proofreader A.Zimokosov

Claims (1)

VACUUM SAFETY VALVE, comprising a thin-walled rubber tube fixed with end sections on the cylindrical surface of the nipples, which are connected to segments of the hose in communication with the working volume, and means for adjusting the valve overlap, characterized in that, in order to increase the reliability of the device when exceeding a given vacuum, the end sections of the nipples connected to the segments of the hose are threaded, the means for adjusting the valve overlap is made in the form of clamps with brackets and screws and, while the clamping clamps are mounted on the hose segments with the possibility of axial movement and cover the end sections of the nipples, in one of the brackets a hole with a left-hand thread is made, and in the other with a right-hand hole, into which the ends of the screw are passed with a left and right thread, respectively, and the flywheel is fixedly fixed in the middle part of the screw, while a thin-walled rubber tube is fixed to the cylindrical surface of the nipples by means of clamping means with the possibility of their axial movement. SU, „. 1229496