CN100584287C

CN100584287C - Stereo radiotheraphy laser positioning cross character linear fitting token tube

Info

Publication number: CN100584287C
Application number: CN200610070601A
Authority: CN
Inventors: 陈兆秋; 赵风岭; 李胜; 徐强; 刘雁冰
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-01
Filing date: 2006-12-01
Publication date: 2010-01-27
Anticipated expiration: 2026-12-01
Also published as: CN101190148A

Abstract

The invention relates to a marking tube which can display a laser cross on the image of imaging equipment (CT, MR) during the three-dimensional radiotherapy laser positioning, which is the fitting marking tube of the coordinate system transplant between the imaging equipment and a radiotherapy machine. The marking tube is an integral cross-shaped structure, that is, the planes of a longitudinal tube 1 and a transverse tube 2 are vertically crossed; and the tube cavity of the longitudinal tube 1 is of transfixion. The tube cavity of the transverse tube 2 is divided into two sections by the longitudinal tube 1. The tube cavities of the longitudinal tube and the transverse tube are not communicated, and a space interval 3 is arranged between the two tube cavities. The ports of the longitudinal and the transverse tubes are closed, and the tube cavities are filled with the developers of the imaging equipment. The cross-sectional scanning image and the reconstruction image of the imaging equipment can significantly prompt the cross mark of the point, line or surface of the human body which is marked by the marking tube.

Description

The stereo radiotheraphy laser positioning cross character linear fitting token tube

Technical field:

The present invention relates to a kind of medical apparatus, specifically be exactly a kind of when three-dimensional radiotherapy laser positioning can be provided, the token tube that can show laser " ten " word line shape on imaging device (CT, the MR) image also is the token tube of same object of study (patient) mutual " transplanting " match between imaging device coordinate system and radiotherapy machine (linear accelerator, cobalt 60 machines etc.) coordinate system.

Background technology:

The outstanding advantage of three-dimensional radiotherapy (X cutter, gamma knife, conformal intensity modulated etc.) is to reduce penetrated at amount of normal structure to greatest extent, increases substantially tumor area dosage, has overcome the insoluble difficulty of conventional radiotheraphy, will become main radiotherapy tumor pattern.The three-dimensional location of laser under the imaging device is one of key link of three-dimensional accurate radiotherapy tumor.Laser " ten " word position line requires as imaging device and the shared coordinate system of radiotherapy machine the visual sign on human body, just can reach the unification of same object of study coordinate system on distinct device, is beneficial to accurate space orientation and Rapid Dose Calculation.Yet laser " ten " word line is nonvisualized on the imaging device image, must by means of on imaging device, develop and with laser " ten " the word line sign of match mutually.Medical skill personnel wish to have a kind of such fitting token, are fixed on patient's the body surface or fixed die, have dual visuality on naked eyes and the imaging device image.We grind " ten " font token tube of having created a kind of so dual visuality, through retrieval, also do not find the stereo radiotheraphy laser positioning cross character linear fitting token tube.

Technology constitutes:

The object of the present invention is to provide a kind of simple in structurely, small and exquisite, be fixed on body surface or the human body fixed die, can with the match mutually of laser positioning " ten " word line, and sign tubule with naked eyes and imaging device doubling of the image visuality.

The present invention realizes like this.Token tube is integral planar " a ten " word chi structure, is provided with vertically a pipe and a transverse pipe, and crossing on the same level is vertical mutually; Vertically pipe is through tube, and two ends are closed state; Transverse pipe is cut about branchs two sections by vertical pipe, and the tube chamber of transverse pipe is obstructed with the tube chamber of vertical pipe, and has the interval between two tube chambers, and the left and right two sections external port of transverse pipe is a closed state; Vertically be full of the developer solution of imaging device in the tube chamber of pipe and transverse pipe sealing.

During use, three token tubes are fixed on human body surface or the human body fixed die, vertically pipe is parallel with the major axis of human body, transverse pipe is parallel with the human body transverse section, and the position of three token tubes and three laser " ten " word line match mutually around the human body, i.e. vertically pipe and ordinate match, transverse pipe and horizontal line match.Bed thickness 3～5mm is adopted in imaging device scanning, continuously every continuous sweep.Like this, the gained image only has one deck to show transverse pipe, and existing " ten " word central point and cross-section basal plane sign have " ten " word pipe sign behind the image reconstruction again.Image document input radiotherapy treatment planning system is made the plan of radiotherapy tumor.According to above-mentioned sign patient is fit to laser orientation system on the radiotherapy machine, composes and be added on the radiotherapy planning data that radiotherapy machine is formulated, control radiotherapy machine and carry out the tumor irradiation, not only dosage standard, and radiotherapy precision height, kill tumor effectively, protection normal structure.

Human body face on one's body, the sign of Points And lines that fitting token tube of the present invention can make imaging device transverse scan image and reconstructed image all can obviously point out token tube to be indicated, i.e. stereo radiotheraphy laser positioning cross character linear sign.The sign that token tube provided also be imaging device and radiotherapy machine laser orientation system " ten " word line shape sign of shared unified coordinate system, be the important references sign of formulating the plan of radiotherapy tumor.

Description of drawings:

Fig. 1 is a section plan of the present invention;

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

Among the figure, 1-vertically manages; The 2-transverse pipe; 3-at interval.

Embodiment:

Below in conjunction with accompanying drawing the present invention is described in detail.

This token tube is plane " a ten " font structure, is preferably made by low-density transparent plastic material, does not develop to such an extent as to normal soft tissue view window indicates tubing matter down.Token tube is provided with vertically pipe (1) and a transverse pipe (2), and vertically pipe (1) and transverse pipe (2) crossing on the same level are vertical mutually.Vertically pipe (1) tube chamber is that homogeneous tube connects; Transverse pipe (2) tube chamber is cut by vertical pipe (1) and is divided into two sections, and tube chamber is with vertically pipe (1) is obstructed.Vertically have interval (3) between pipe (1) and transverse pipe (2) tube chamber, to avoid the interference when the imaging of developer solution in two tube chambers.Vertically the pipe (1) and transverse pipe (2) mouth of pipe are closed state, are full of the imaging developer solution in it.

During use, three token tubes are fixed on human body surface or the human body fixed die, vertically pipe (1) is parallel with the major axis of human body, cross-section pipe (2) is parallel with the human body transverse section, and the position of three token tubes and three laser " ten " word line match mutually around the human body, i.e. vertically pipe (1) and ordinate match, transverse pipe (2) and horizontal line match.When imaging equipment adopts 3～5mm bed thickness to scan, one deck pictorial display is only arranged through laser " ten " word horizontal line layer, and on this tomographic image, show short tube shape transverse pipe (2) and point-like is vertically managed (1); This point is exactly laser " ten " word cross point.Image document input radiotherapy treatment planning system, draw the tumor radiotherapy planning data do the formulation that benchmark carries out the tumor plan according to above-mentioned some dough-making powder.With patient on one's body or the Points And lines that is marked with of fixed die be fitted in the radiotherapy machine laser orientation system, carry out the accurate radiotherapy of tumor according to the radiotherapy planning data manipulation radiotherapy machine of formulating, so just can reach and eliminate tumor to greatest extent, protect normal structure.

Claims

1, stereo radiotheraphy laser positioning cross character linear fitting token tube is characterized in that: token tube is integral planar " a ten " word X-type structure, is provided with vertically pipe (1) and a transverse pipe (2), and crossing on the same level is vertical mutually; Vertically pipe (1) tube chamber is for connecting shape, the tube chamber of transverse pipe (2) is cut by vertical pipe (1) and is divided into two sections, and vertically the tube chamber of the tube chamber of pipe and transverse pipe is obstructed, and has interval (3) between two tube chambers, the port of vertical, horizontal pipe is closed state, is full of the developer solution of imaging device in the tube chamber.