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CN1013733B - Medical laser apparatus with automatic tracking and scanning function - Google Patents

Medical laser apparatus with automatic tracking and scanning function

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Publication number
CN1013733B
CN1013733B CN 88108389 CN88108389A CN1013733B CN 1013733 B CN1013733 B CN 1013733B CN 88108389 CN88108389 CN 88108389 CN 88108389 A CN88108389 A CN 88108389A CN 1013733 B CN1013733 B CN 1013733B
Authority
CN
China
Prior art keywords
automatic tracking
scanning
laser apparatus
control system
medical laser
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CN 88108389
Other languages
Chinese (zh)
Other versions
CN1043266A (en
Inventor
李声沛
冯松云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institute of Electronics of CAS
Original Assignee
Institute of Electronics of CAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Institute of Electronics of CAS filed Critical Institute of Electronics of CAS
Priority to CN 88108389 priority Critical patent/CN1013733B/en
Publication of CN1043266A publication Critical patent/CN1043266A/en
Publication of CN1013733B publication Critical patent/CN1013733B/en
Expired legal-status Critical Current

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  • Laser Surgery Devices (AREA)
  • Radiation-Therapy Devices (AREA)

Abstract

The present invention relates to a medical laser therapeutic apparatus with the function of automatic tracking and scan, which is an automatic tracking scanner composed of an X-Y coordinate driving mechanism, a sensor, a microprocessor control system and an X-Y step motor. The present invention has the advantages of simple structure, stabilization, reliability and low precision requirements for the sensor and an A/D converter. The apparatus can be conveniently connected with various laser therapeutic apparatus used at present. The apparatus can lighten the harm of lasers to medical personnel, and improve the uniformity and the therapeutic effect of operative treatment.

Description

Medical laser apparatus with automatic tracking and scanning function
The invention belongs to the application of laser instrument.
Nevus flammeus is called hemangioma again, is a kind of common benign skin tumour, and it is facial above 60% to occur in the oral cavity stool, has a strong impact on patient's face well-done.Adopt the laser beam treatment at present, obtained obvious curative effects.But diseased region inner laser scanning irradiation all is limited to manual operations, and manual uniformity is relatively poor, causes diseased region piebaldism to occur, and operator's eyes have certain infringement.
The objective of the invention is by control coordinate drive mechanism, finish the operation of body surface diseased region from motion tracking and scanning.
Main feature of the present invention is, X-Y motor 4 drives 1 motion of X-Y coordinate drive mechanism, displacement transducer is clamored and is gathered diseased region irregular figure data boundary, and with the data input microprocessor control system 3 of being gathered, the spotting scaming signal of 3 pairs of pick offs 2 of said microprocessor control system and pathological changes irregular figure data boundary compare back control step motor 4 and carry out automatic tracking and scanning.
The present invention adopts the method for the direct input microprocessor of body surface diseased region figure figurate number, by system system control coordinate drive mechanism, finish body surface diseased region operation from motion tracking and scanning, alleviated harm and the manual burden of laser, improved and improved the uniformity and the curative effect of operative treatment the medical worker.The present invention in use scans evenly, and diseased region piebaldism do not occur and improves curative effect, to medical worker's not infringement of eyes.The present invention not only can treat the diseased region of rule, can also treat irregular diseased region.
Fig. 1 is the structure chart of X-Y coordinate drive mechanism.A is the X-Y motor among the figure, and B is a guide rail, and C is a slide block, and D is a drive.
Fig. 2 is for not showing the collection input method of pathological changes subarea graph data.
Fig. 3 is the track of automatic tracking and scanning.
Fig. 4 is the automatic tracking and scanning systematic schematic diagram.
1 is X-Y coordinate drive mechanism among the figure, and 2 is displacement transducer; 3 is microprocessor control system; 4 is the X-Y motor.
Brief description principle of the present invention, because skin shallow-layer hemangioma is scarlet or kermesinus at skin surface, patient part has nothing in common with each other, the shape size is different again.It is actually a three-dimensional irregular body chart shape problem.But solve 3-D graphic from motion tracking and scanning, will make coordinate drive mechanism and automatic control system very complicated.Considering the operation for the larger area nevus flammeus, is exactly to shine dribs and drabs originally, is not once to finish.So the method that the present invention adopts division body surface pathological changes scanning subarea to treat is fully feasible.It is reduced to two dimensional model after three-dimensional problem is localized.So just simplified automated system.For collection input and the realization automatic tracking and scanning that solves body surface pathological changes subarea graph data.The present invention adopts the coordinate drive mechanism that has single displacement transducer and has the method that microprocessor control system combines.Promptly under the condition that the sweep span axle of X-Y coordinate drive mechanism (define which coordinate axes all can) is travelled at a slow speed automatically by stepper motor, move the slide block on another scan axis.Automatically follow body surface pathological changes subarea one week of graphic limit.Shown in figure two.Can be in a clockwise direction around a week, also can be counterclockwise around a week, under microprocessor control, sweep span of every stepping is gathered boundary point data automatically, and so circulation can be finished the automatic input of required graphic limit data.The pattern input method that this employing single-sensor combines with microprocessor control system is very effectively simple.Can import the surfacial pattern in any background color and any pathological changes subarea in this way easily.Pick off selects for use the various displacement transducers can.As resistance-type, condenser type, inductance type, variable reluctance, differential transformer, photoconduction formula, digital etc.
The operation principle of brief description automatic tracking and scanning system.As seen from Figure 4, medical laser apparatus with automatic tracking and scanning function is made up of two parts.First has single displacement transducer X-Y coordinate drive mechanism.Second portion is that the control system and the input/output interface circuit that have microprocessor constitute.Delivery outlet is an X-Y coordinate step motor driving circuit, and the input port is status switch and A/D change-over circuit.The slide block (see figure 1) that is installed on the scan axis is driven by stepper motor, and under microprocessor control, the pulse drive signal of exporting motor by control system carries out automatic scam.Simultaneously again because in scanning process, by pick off and input port constantly gather the input coordinate displacement signal and with the scanning that begins to perform the operation before the boundary point data of the above-mentioned respective scanned row that collects compare, at any time check and whether reach corresponding boundary position, if do not reach, continue automatic scam, if just reach, sweep span of stepping then, this action is finished by the motor that is installed on another coordinate axes.Enter another scanning line then again and carry out automatic tracking and scanning.So repeatedly, till sweeping complete figure.Fig. 3 is the track of automatic tracking and scanning.
The present invention not only control method is simple, and is reliable and stable, and the accurate requirement of pick off and A/D converter is reduced, and the linearity of pick off is not required yet, and same position only is decided by the A/D precision.This is very useful to simplifying automatic control system.This system and original laser therapeutic apparatus connect very convenient, for the argon ion that optical fiber head is arranged.Therapeutic instruments such as YAG laser are all applicable, connect also unrestricted for the laser therapeutic apparatus with mechanical hand.

Claims (2)

1, medical laser apparatus with automatic tracking and scanning function is characterized in that displacement transducer 2 collection diseased region irregular figure data boundaries by 1 motion of X-Y motor 4 drive X-Y coordinate drive mechanisms, and with the data input microprocessor control system 3 of being gathered, the spotting scaming signal of 3 pairs of pick offs 2 of said microprocessor control system and pathological changes irregular figure data boundary compare back control step motor 4 and carry out automatic tracking and scanning.
2, it is characterized by pick off 2 by the described medical laser apparatus with automatic tracking and scanning function of claim 1 and be at least one one dimension displacement pick off.
CN 88108389 1988-12-13 1988-12-13 Medical laser apparatus with automatic tracking and scanning function Expired CN1013733B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 88108389 CN1013733B (en) 1988-12-13 1988-12-13 Medical laser apparatus with automatic tracking and scanning function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 88108389 CN1013733B (en) 1988-12-13 1988-12-13 Medical laser apparatus with automatic tracking and scanning function

Publications (2)

Publication Number Publication Date
CN1043266A CN1043266A (en) 1990-06-27
CN1013733B true CN1013733B (en) 1991-09-04

Family

ID=4835065

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 88108389 Expired CN1013733B (en) 1988-12-13 1988-12-13 Medical laser apparatus with automatic tracking and scanning function

Country Status (1)

Country Link
CN (1) CN1013733B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102566499A (en) * 2010-12-24 2012-07-11 北大方正集团有限公司 Linearly-reciprocating mobile device and location control method thereof

Also Published As

Publication number Publication date
CN1043266A (en) 1990-06-27

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