SU921556A1

SU921556A1 - Apparatus for fixing surgical instrument

Info

Publication number: SU921556A1
Application number: SU802991751A
Authority: SU
Inventors: Уваиз Багавдинович Махмудов; Рашид Мустафьевич Мухамедьяров
Original assignee: Всесоюзный научно-исследовательский и испытательный институт медицинской техники; Институт Нейрохирургии Им.Акад.Н.Н.Бурденко
Priority date: 1980-07-07
Filing date: 1980-07-07
Publication date: 1982-04-23

Description

(5) УСТРОЙСТВО ДЛЯ ФИКСАЦИИ ОПЕРАЦИОННОГО ИНСТРУМЕНТА(5) DEVICE FOR FIXING OPERATING TOOLS

Изобретение относитс к медицине,,, а именно к нейрохирургии. This invention relates to medicine, specifically to neurosurgery.

Известно устройство дл фиксации операционного инструмента, содержащее пластину-основание с гибкими многозвенными фиксируемыми рукавами с устройством дл нат жени троса, проход щего через звень рукавов, зажимами дл хирургического инструмента и узлом креплени с болтом и с фиксируемой за край рамы скобойtl3.A device for fixing an operating tool is known, comprising a base plate with flexible, multi-link fixed sleeves with a device for tensioning a cable passing through the sleeve sections, clamps for a surgical instrument and a fastening unit with a bolt and with a tl3 clamp fixed at the edge of the frame.

Однако фиксаци известного устройств на Кости с помощью такого г узла закреплени имеет р д существенных недостатков особенно при проведении операций в области задней черепной мки (в области мостомозжечкового угла при невриномах слухового нерва), поскольку при этом возмоина травматизаци мозк(еЧ- . ка, сдавлениё поперечного синуса, отслаивание твердой мозговой оболочки у синуса с образованием эпидуральной гемотомы.However, the fixation of a known device on Kostya with the help of such a g clamping unit has a number of significant drawbacks, especially when performing operations in the region of the posterior cranial uterus (in the area of the bridge-cerebellar corner with the neurinomas of the auditory nerve), since this can cause trauma to the brain (ech. transverse sinus, peeling of the dura mater of the sinus with the formation of epidural hematoma.

Кроме ТОГО, при фиксации устройства и краю кости ограничиваетс обзорность операционного пол и доступ к глубинным мозговым структурам .In addition to this, when the device is fixed and the edge of the bone, the visibility of the operative field and access to the deep brain structures are limited.

Цель изобретени - снижение травматизации .The purpose of the invention is to reduce trauma.

Указанна цель, достигаетс тем, что в устройстве, содержащем пласto тину-основание с гибкими многозвенными фиксируемыми рукавами с устройством дл нат жени троса, проход щего через звень рукавов, зажимами дл хирургического инструмента и узел креплений с болтом, болт узла креплени выполнен съемным, имеет шурупную резьбу, гайку и опорную шайбу с фланцем, выполненную с возможностью перемещени ее вдоль оси болта.This goal is achieved by the fact that, in a device containing a base plate with flexible, multi-link fixed arms with a device for tensioning a cable passing through the links of the sleeves, clamps for a surgical instrument and a fastener assembly with a bolt, the fastener bolt is removable and has screw thread, nut and support washer with flange, made with the possibility of moving it along the axis of the bolt.

Claims

FIG. 1 shows the proposed device fixed to the skull, a general view with a slit of the mount; in fig. 2 - plate-base. The device has a base plate 1 with flexible multilink fixed sleeves 2 with a device 3 for tensioning the cable passing through the sleeve sections, clamps 4 for a surgical instrument and a mounting unit made in the form of a screw-bolt 5 screwed onto the nut 6 with a groove-lock 7 with a support washer 8 moving along the axis of the bolt with a flange 9 having a flat annular bearing contact surface with the skull. The base plate 1 is connected to the bolt 5 by means of a washer 10 and a screw 11. A part of a bolt with a screw is screwed into the bone of the skull. To secure the device to the skull head during the operation on the posterior cranial skeleton, the surgeon, after performing a resection trepanation for an operative approach, places a phrasal opening in the occipital bone in the projection area of the posterior horn of the corresponding lateral ventricle. joints when screwing the bolt 5 into the bone. The bolt 5 is screwed into the bone with an allen key. After screwing in the bolt 5 to a depth equal to the thickness of the bone, the nut 6 is screwed until the bearing washer 8 is firmly pressed against the bone. Then, on the bolt 5 with the help of a washer 10 and a screw 11, the plate base 1 is fixed with flexible multi-link fixed, sleeves

2. With the help of a device for tensioning the cable 3, the required stiffness of the sleeves is achieved, the required surgical instrument is placed in the clamps k and is placed in the cavity of the surgical wound. Performing the mount in the device for fixing the surgical instrument, as described above, makes it possible; reinforcements outside the trepanation aperture, which provides enhanced visibility of the operative field and access to the deep brain structures; in addition, the risk of injury to the brain, sinuses, and membranes is significantly reduced. The use of a nut with a thrust washer increases the strength of the bolt's connection to the bone and prevents it from being screwed. An apparatus for fixing an operating instrument comprising a base plate with flexible, multi-link fixable arms with a device for tensioning a cable passing through the links of the arms, clamps l of a surgical instrument, and a fastening knot with a bolt, in order to reduce trauma, the bolt of the mounting unit is made removable, has a fragile thread, a nut and a bearing imbu with a flange, made with the possibility of moving it along the axis of olt. Sources of information, rintye taken into account in the examination 1. The catalog of the company Aesculap, Germany, 1973, p. .