SU923526A1

SU923526A1 - Device for biopsy

Info

Publication number: SU923526A1
Application number: SU792768961A
Authority: SU
Inventors: Федор Павлович Инденко
Original assignee: Львовский государственный медицинский институт
Priority date: 1979-05-21
Filing date: 1979-05-21
Publication date: 1982-04-30

Description

Изобретение относится к медицине*’ кой технике, а именно к устройствам для биопсии паренхиматозных.органов.The invention relates to medicine * ’technique, namely, devices for biopsy of parenchymal organs.

Известно устройство для биопсии, содержащее корпус с полой иглой, имеющей окно и подвижный внутри иглы нож, пистолетную рукоятку и поршень с штоком в цилиндрической полости Е11 Однако известное устройство сложно по своей конструкции для изготовления и использования.A device for biopsy is known, comprising a body with a hollow needle having a window and a knife movable inside the needle, a pistol grip and a piston with a rod in a cylindrical cavity E11 However, the known device is difficult in construction for its manufacture and use.

Цель изобретения - упрощение конструкции устройства.The purpose of the invention is to simplify the design of the device.

Поставленная цель достигается тем, что в устройстве для биопсии, содержащем корпус с полой иглой, имеющей окно и подвижный внутри иглы нож, игла выполнена заостренной на торце и изогнутой под углом 20 - 30°, а нож вы- · , полнен в виде совка. При этом нож выполнен подпружиненным. · .·This goal is achieved by the fact that in a biopsy device containing a body with a hollow needle, having a window and a knife movable inside the needle, the needle is made pointed at the end and bent at an angle of 20 - 30 °, and the knife is made in the form of a scoop. In this case, the knife is spring loaded. ·. ·

На чертеже изображено устройство для биопсии.The drawing shows a biopsy device.

Устройство содержит корпус в виде полого направляющего цилиндра 1, полая игла на торце выполнена заостренной и в рабочей части изогнута под углом 20-30° · В месте изгйба иглы расположеноокно а для изъятия проб. Внутри цилиндра находится стержень 2 с ножом в рабочей части, пружина 3, колпачок 4, фиксатор 5.The device comprises a housing in the form of a hollow guide cylinder 1, the hollow needle at the end is made pointed and bent at an angle of 20-30 ° in the working part Inside the cylinder there is a rod 2 with a knife in the working part, a spring 3, a cap 4, a retainer 5.

Устройство работает следующим образом.The device operates as follows.

Забор ткани осуществляется введением рабочей части наружного цилиндра 1 в исследуемый орган. Отсечение столбика ткани осуществляется при рабочем ходе стержня 2 в-крайнем нижнем положении немка. После этого устройство извлекается из органа. При рабочем ходе стержня одновременно с помощью фиксатора 5 сжимается пружина 3· При отпускании стрежня пружина разжимается, происходит обратный ход стержня. Столбик ткани для йссле дования освобождается от захвата и извлекается через окно а в изогнутой части цилиндра.The tissue is taken by introducing the working part of the outer cylinder 1 into the organ under investigation. Clipping of the tissue column is carried out during the working stroke of the rod 2 in the extreme lower position of the German woman. After that, the device is removed from the body. During the working stroke of the rod, the spring 3 is compressed with the help of the clamp 5 · When the rod is released, the spring is opened, the rod moves back. A column of tissue for research is freed from grip and removed through window a in the curved part of the cylinder.

Предлагаемое устройство для биопсии с упрощением конструкции обеспечивает быстроту и удобство в работе и стерилизации.The proposed biopsy device with a simplified design provides speed and ease of use and sterilization.

Claims

This invention relates to a medical technique, namely to devices for biopsy of parenchymal organs. A device for biopsy is known, comprising a housing with a hollow needle having a window and a knife movable inside the needle, a pistol grip and a piston with a rod in the cylindrical cavity 11 However, the known device is complicated in its design for manufacturing and use. The purpose of the invention is to simplify the design of the device. This goal is achieved by the fact that, in a biopsy device containing a body with a cannula, having a window and a knife moving inside the needle, the needle is made pointed at the end and bent at an angle of 20-30, and the knife is made in the form of a scoop. In this case, the knife is made spring-loaded. The drawing shows a device for biopsy. The device comprises a housing in the form of a hollow guide cylinder 1, the floor of the needle at the end is pointed and in the working part is bent under an angle of 20-30. In the place of needle bending there is a window a for taking samples. Inside the cylinder there is a rod 2 with a knife in the working part, a spring 3, a cap 4, a retainer 5 The device operates as follows. The tissue is taken by inserting the working part of the outer cylinder 1 into the test body. The cutting of the fabric column is carried out at the working stroke of the rod 2 in the extreme lower position of the German woman. Thereafter, the device is removed from the organ. During the working stroke of the rod, the rod a 3 is compressed simultaneously with a clamp 5. When the rods are released, the spring expands and the rod reverses. A piece of fabric for adjusting to the cushion 39 is released from the grip and removed through the window O. in the curved part of the cylinder. The proposed device for biopsy with a simplified design provides speed and ease of operation and sterilization. Claims 1. A device for biopsy, comprising a housing with a cannula, having windows and a knife movable inside the needle, characterized in that, in order to simplify the construction, the needle. It is made pointed at the end and bent at an angle of 20 - 3 {G, and the knife is made in the shape of a scoop.

2. The device according to claim 1, about t l and so that the knife is made spring-loaded. Sources of information taken into account during the examination 1. USSR Copyright Certificate № 00319, cl. A 6.1 B 10/00, 19bd.