CN2367267Y

CN2367267Y - Simple CT insertion space positioner

Info

Publication number: CN2367267Y
Application number: CN99207410U
Authority: CN
Inventors: 靳海英; 张和平; 鲁广秀
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-04-09
Filing date: 1999-04-09
Publication date: 2000-03-08
Anticipated expiration: 2009-04-09

Abstract

The utility model relates to a simple CT insertion space positioner. Metal strips are uniformly distributed on two opposite cambered sides of a main body plate; the metal strips on the two opposite sides are mutual in staggered type arrangement; one end of the metal strip is higher than the plane of one end of the main body plate. The positioner has convenient operation and accurate and reliable positioning. The once puncture successful rate of operators with skilled operation can reach 100 percents. The simple CT insertion space positioner can directly puncture to the center of focus; consequently, the multiple repeated CT scan and correction can be avoided; the operated insertion time is shortened; the radiation quantity of radioactive ray to patients can be reduced. The utility model has simple structure and low cost, and is suitable for all CT machines used in China at present.

Description

Simple and easy CT gets involved stereotaxic instrument

This utility model relates to a kind of operation auxiliary device, and particularly simple and easy CT gets involved stereotaxic instrument.It is best suited for the CT interventional therapy at trunk position.

Usually, in the CT interventional therapeutic technique,, be that decision CT gets involved key of success to the accurate localised puncture of focus.Traditional localization method is to adopt metal flag thing such as lead marker to be positioned on patient's focus aspect skin, goes out the needle angle and the degree of depth with the light mapping, then, inserting needle again punctures, because accurate positioning is not good enough, need after repeatedly CT scan is corrected, could puncture and put in place, complex operation, certain blindness is arranged, have mistiming to wear other histoorgan and cause very serious consequence, and make that the intervene operation time is long, it is bigger to make the patient accept the amount of radiation of lonizing radiation, is unfavorable for patient's health.Owing to lack CT positioner accurately and efficiently, the CT interventional technique of China's basic hospital is carried out less, popularizes inadequately.

The purpose of this utility model is to provide a kind of simple and easy CT to get involved stereotaxic instrument.It can be located exactly, the one-time successful puncture rate height, and simple in structure, easy to operate, can shorten the CT intervene operation time effectively, thereby can reduce amount of radiation patient's lonizing radiation, help patient health.

Its solution is: be respectively arranged with bonding jumper uniform and that parallel on the main board two relative arcuate flanks that adapt to the circular curvature of human body, but it has 15 at least, and be arranged on the bonding jumper that parallels on the two relative arcuate flanks and be staggered layout mutually, and an end of bonding jumper exceeds a transverse plane of main board, on the CT cross-sectional view, the transverse section of bonding jumper shows as lighttight point-like high density shadow, can select best puncture entry point by it.

Because adopt technique scheme, so it is easy to operate, accurate positioning is reliable, patient's one-time successful puncture rate of skilled operation can reach 100%; And can directly be punctured to the focus center, and avoid repeatedly repeatedly CT scan to correct effectively, thereby shortened the intervene operation time, can reduce amount of radiation to patient's lonizing radiation, help patient health.And it is simple in structure, it is easy, cheap to draw materials, and is applicable to all CT machines that present China uses, and has wide practical use.

Enforcement side of the present utility model is described in detail in conjunction with the accompanying drawings.

Fig. 1 is the front view that simple and easy CT gets involved stereotaxic instrument.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the user mode figure that simple and easy CT gets involved stereotaxic instrument.

Among Fig. 1, Fig. 2, main board (1) is made to adapt to the three-dimensional fan shape of the circular curvature of trunk by transparent plastic, uniform respectively 15 Al-alloy metal bars (2), (3) that parallel that are bonded with on main board (1) two relative arcuate flanks, the Al-alloy metal bar (2), (3) that parallel on the two relative arcuate flanks are staggered layout mutually, and an end of bonding jumper (2), (3) exceeds a transverse plane (4) of main board (1).

When using this position finder to carry out the CT interventional therapy, after the best aspect and sterilization of patient being carried out CT scan selection puncture, this position finder is fixed in patient's body surface, make this position finder one transverse plane (4) aim at the aspect that chooses, scanning once more, on CT scan figure, select best puncture entry point N, to draw a straight line between focus center M and the N point with cursor, measure M, distance between the N, and the intersection point of MN line and position finder one transverse plane (4) top is the K point near bonding jumper, in the relevant position that position finder and patient's body surface labelling K point and N are ordered, patient carried out local anaesthesia after, the patient can puncture along the KN direction, inserting needle reach between the MN apart from the time, needle point is finished interventional therapy one time promptly at M place, focus center.

Claims

1, a kind of simple and easy CT gets involved stereotaxic instrument, it is characterized in that on main board (1) the two relative arcuate flanks that adapts to the circular curvature of human body, being respectively arranged with bonding jumper (2), (3) uniform and that parallel, and the bonding jumper (2), (3) that parallel on the two relative arcuate flanks are staggered layout mutually, and an end of bonding jumper (2), (3) exceeds a transverse plane (4) of main board (1).

2, simple and easy CT as claimed in claim 1 gets involved stereotaxic instrument, it is characterized in that, is separately positioned on the bonding jumper (2), (3) that parallel on main board (1) the two relative arcuate flanks and has 15 at least.