SU592414A1

SU592414A1 - Wire-tensioning device

Info

Publication number: SU592414A1
Application number: SU762327394A
Authority: SU
Inventors: Гений Александрович Липанов; Эдуард Валентинович Бурлаков
Original assignee: Курганский Научно-Исследовательский Институт Экспериментальной И Клинической Ортопедии И Травматологии
Priority date: 1976-02-26
Filing date: 1976-02-26
Publication date: 1978-02-15

Description

1one

Изобретение относитс к области медицины , а именно к хирургическим и«1ст1р ум антам и принадлежност м дл оперировани переломов костей.The invention relates to the field of medicine, namely to surgical and dental surgeons and accessories for the operation of bone fractures.

Известны свиценат гиватели, содержащи е корпус в виде стакана, помещенную внутри него п1ружину, резьбовой стержень с гайкой и элементы креплени {.Known fasteners are known, containing a body in the form of a glass, a spring placed inside it, a threaded rod with a nut, and fastening elements {.

Недостатком известного спиценат гивател вл етс то, что шкала, нанесена на неподвижно .М стакане, и при различ|ном положении его относи гельшэ наблюдател возникает трудность (П1рИ1 считываний показаний ш,калы. Разлнчгаьне положени спипенат гивател относительно хирурга завис т от вида лечебных задач, определ ющих плоскости проведени и направлени нат жени спиц. Расположеиие шкалы вдоль стенки окна в стаиане такж€ к дополнительным трудност м считывапи показани шкалы ввиду того, что делени шкалы располагаютс близкодруг к другу при больших диапазонах оил нат жени спиц и малой величине деформации пружины , или приводит к увеличению цены деланий шкалы, что точность отсчета оилы нат жени спиц.The disadvantage of the famous givatel is that the scale is fixed on the fixed glass and the position of the observer is difficult when the position of the observer is different (P1rI1 readings w, kalah. Different positions of the givatel's relative to the surgeon depend on the type of medical tasks defining the plane of the conductors and the direction of tension of the spokes. The location of the scale along the wall of the window in the staian also adds to the difficulty of reading the indications of the scale in view of the fact that the divisions of the scale are close to each other. rugu with large ranges of oil tension of the spokes and a small amount of deformation of the spring, or leads to an increase in the price of danii scale, that the accuracy of the reference oily tension of the spokes.

Целью изобретени вл етс повыш ение удобства и точности отсчета силы нат жени спиц.The aim of the invention is to improve the convenience and accuracy of the tension force of the spokes.

Это дос,тигаетс тем, что предлагаемое устройство снабжено барабаном с отверсти ми, нодвижно установленным на корпусе, который имеет кольцевую риску, причем отверсти расположены по винтовой линией, а диаметр отверстий вычисл етс по формулеThis is done by the fact that the proposed device is equipped with an orifice drum mounted on the housing, which has an annular risk, the openings are located along a helix, and the diameter of the openings is calculated by the formula

,,

где d - диаметр отверстий;where d is the diameter of the holes;

t - uiar мелсду отверсти ми.t - uiar hole.

На фиг. 1 показан предлагаемый спиценат гцватель , разрез; на фит. 2 - барабан с отверсти мИ при условном нат жении спицы силой 50 кгс.FIG. 1 shows the proposed spicate gtsvatel, section; on fit. 2 - a drum with an aperture mI under conditional tension of the spokes with a force of 50 kgf.

Спиценат гиватель содержит корпус 1 в виде стакана, внутри которого номеш,ен резьбовой стержень 2, сн.абженньш каналом дл спицы и отверстием дл зажимного болта 3. Внутри корпуса размещена тарированна The gauze kit contains a case 1 in the form of a glass, inside which there is a number, a threaded rod 2, a screw channel for the spokes and a hole for the clamping bolt 3. Inside the case there is a calibrated

Claims

a spring 4, one end of which is fed into the housing, and the other through the sleeve 5 into the nut 6. On the cylindrical part of the housing, provided with a ring-shaped rim 7, a drum 8 is fitted with openings located along the generatrix helix. The hole diameter d is equal to three steps t between the holes along the axis of the drum (). This makes it possible to observe an annular risk at the same time in three openings on the drum. The internal shoulder of the drum is placed between the nut 6 and the sleeve 5 with the possibility of: free rotation of the drum around its axis. Aligner givatel.1} works as follows. It is fixed on a ring or arc of a kompressionno - distraction apnarata. The needle is threaded into the hole of the threaded rod 2 and secured with a clamping bolt 3. When the nut 6 is screwed onto the threaded rod 2, a tared spring 4 slides along with the simultaneous tension of the Siya and the Idrodle non-displacement of the drum 8 relative to the housing 1. When this happens, the risk ring 7 A succession is observed in the various openings of the drum 8 depending on the tension force of the spokes. For the knitting needle, with a certain force, it is necessary to turn the drum 8 with the hole corresponding to this force to the observer and to rotate the nut 6 until the ring riok is located symmetrically in this hole. The accuracy of positioning the risks in the hole is controlled by the same degree of asymmetry in its location in two holes next to it. Speaker gauge Provides a more convenient and accurate reading of the tension force of the spokes when its position is different for a few observers. Claims of the invention Spicaton, comprising a case in the form of a cup, a spring placed inside it, a threaded rod with a nut and fasteners, characterized in that, in order to increase the convenience and accuracy of the back tension, the device is equipped with a drum with a 1M1i hole movably mounted on case, which has an annular risk, Moreover, the holes are located along the screw line, and the diameter of the holes is calculated by the formula where d is d and a meter p from the top; t is the pitch between the holes. Sources of information taken into account in the examination 1. Copyright certificate № 202445, cl. A 61B 17/18, 1966.