CN2540923Y

CN2540923Y - Field plotter for radiotherapy

Info

Publication number: CN2540923Y
Application number: CN02214437U
Authority: CN
Inventors: 陶金柱; 郭跃信; 马长征
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-28
Filing date: 2002-04-28
Publication date: 2003-03-26
Anticipated expiration: 2012-04-28

Abstract

The utility model relates to a tracing pen of a radiation therapy field. A refill is arranged inside a pen holder, a pen point is arranged at the front end of the pencil lead, an ink tube of which the two ends are open is mounted on the end portion of the pen point, an ink absorbing body is positioned inside the ink tube, and an ink inlet of the refill contacts with the ink absorbing body. A compressing tablet presses against the ink absorbing body, a spring is mounted between the compressing tablet and the end portion of the ink tube, and an end cover is arranged on the end portion of the ink tube. The utility model can draw lines of homogeneous thickness, and the phenomenon that the lines are not uniform doesn't exist. Consequently, the accuracy degree of lining out is high, thereby being beneficial to increase the accuracy of the irradiation field and improving the effect of the radiation therapy.

Description

The wild drawing pen of radiotherapy

Technical field

This utility model relates to a kind of drawing pen, particularly relates to the drawing pen that a kind of radiotherapy is used.

Technical background

Adopt homemade scoring tools such as bamboo let to dip in bark fetching skin ink more at present when radiotherapy and rule at body surface, the lines precision that this line mode marks is lower and thickness is uneven, can not depict accurate irradiation field, thereby influences the radiotherapy quality.Because homemade bamboo let is diversified in specifications, cause the poor repeatability that is coated with when retouching and establishes the open country first.

Summary of the invention

The purpose of this utility model provides the wild drawing pen of the high radiotherapy of a kind of precision of ruling, thereby makes the irradiation field of retouching out more accurate.

For achieving the above object, this utility model adopts following technical scheme: the wild drawing pen of a kind of radiotherapy, pen core is housed in penholder, the pen core front end has nib, and pen arm end is equipped with the China ink pipe of the equal opening in two ends, in the black pipe ink absorbing body is housed, the pen core ink entrance contacts with ink absorbing body, tabletting is pressed on the ink absorbing body, between tabletting and black tube end spring is housed, and black tube end is stamped end cap.

Be stamped the cap for brush on the penholder.

After adopting such scheme, as long as in pen core, there is ink, this utility model under any circumstance all can mark the lines of even thickness, the phenomenon that bamboo let line thickness differs can not appear, therefore the precision height of ruling helps to improve the accuracy of the irradiation field of being retouched out, improves radiotherapeutic effect, neither can make normal structure be subjected to the too much irradiation of dosage, also can not make needs the tissue of irradiation to miss.

Description of drawings

Accompanying drawing is depicted as structural representation of the present utility model.

The specific embodiment

Pen core 2 is housed in penholder 3, and pen core 2 front ends have nib 9, and the China ink pipe 5 of the equal opening in two ends is equipped with in penholder 3 ends, in the China ink pipe 5 ink absorbing body 4 is housed, the good material of water absorbing properties of ink absorbing body 4 usefulness silk flosssilk waddings and so on so that can suck more ink, but uses the drawing pen long period.Pen core 2 ink entrances contact with ink absorbing body 4, and tabletting 6 is pressed on the ink absorbing body 4, between tabletting 6 and China ink pipe 5 ends spring 7 are housed, and in order to increase elasticity, spring can be established two.End cap 8 is stamped in China ink pipe 5 ends.Be stamped the cap for brush 1 on the penholder 3.

Need retouch when drawing the radiation open country, the cap for brush is removed, directly line gets final product at patient's affected part body surface position with nib.Along with the minimizing of quantity of ink, spring can promote tabletting and compress ink absorbing body, thereby the intravital ink of blotting is constantly entered in the pen core.After ink uses up, can remove penholder, in ink absorbing body, inject ink again and can continue to use.

Claims

1, the wild drawing pen of a kind of radiotherapy, it is characterized in that, pen core (2) is housed in penholder (3), pen core (2) front end has nib (9), and the China ink pipe (5) of the equal opening in two ends is equipped with in penholder (3) end, in the China ink pipe (5) ink absorbing body (4) is housed, pen core (2) ink entrance contacts with ink absorbing body (4), tabletting (6) is pressed on the ink absorbing body (4), between tabletting (6) and China ink pipe (5) end spring (7) is housed, and end cap (8) is stamped in China ink pipe (5) end.

2, drawing pen as claimed in claim 1 is characterized in that, is stamped the cap for brush (1) on the penholder (3).