CN102525650B - Holmium laser lithotrity system - Google Patents
Holmium laser lithotrity system Download PDFInfo
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- CN102525650B CN102525650B CN201010581420.5A CN201010581420A CN102525650B CN 102525650 B CN102525650 B CN 102525650B CN 201010581420 A CN201010581420 A CN 201010581420A CN 102525650 B CN102525650 B CN 102525650B
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- 229910052689 Holmium Inorganic materials 0.000 title claims abstract description 14
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 239000013078 crystal Substances 0.000 claims abstract description 22
- 230000003287 optical effect Effects 0.000 claims abstract description 15
- 230000028161 membrane depolarization Effects 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract description 2
- 208000000913 Kidney Calculi Diseases 0.000 description 1
- 206010029148 Nephrolithiasis Diseases 0.000 description 1
- 208000006568 Urinary Bladder Calculi Diseases 0.000 description 1
- 208000009911 Urinary Calculi Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000023597 hemostasis Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 201000009160 urethral calculus Diseases 0.000 description 1
- 208000014001 urinary system disease Diseases 0.000 description 1
- 208000008281 urolithiasis Diseases 0.000 description 1
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- Radiation-Therapy Devices (AREA)
- Laser Surgery Devices (AREA)
Abstract
本发明公开了一种钬激光碎石光学系统，包括在一光轴上依次直线布置的全反射镜、第一波片、偏振器、HO:YAG激光晶体、第二波片和输出镜，所述HO:YAG激光晶体与第二波片之间还设置有一中红外波段调Q晶体。本发明的特点是在微秒级腔型基础上设计加入中红外电光调Q晶体，同时用波片进行光学修正以克服高能量泵浦引起的晶体退偏；实现高峰值功率的纳秒级钬激光均匀输出。
The invention discloses a holmium laser lithotripsy optical system, which comprises a total reflection mirror arranged linearly in sequence on an optical axis, a first Wave plate, polarizer, HO:YAG laser crystal, second wave plate and output mirror, the HO:YAG laser crystal and the second A mid-infrared band Q-switching crystal is also arranged between the wave plates. The feature of the present invention is to design and add a mid-infrared electro-optic Q-switching crystal on the basis of a microsecond-level cavity, and at the same time use a wave plate for optical correction to overcome crystal depolarization caused by high-energy pumping; realize nanosecond-level holmium with high peak power The laser output is uniform.
Description
技术领域 technical field
本发明涉及一种钬激光碎石治疗系统。The invention relates to a holmium laser lithotripsy treatment system.
背景技术 Background technique
钬激光碎石治疗系统是一种治疗结石的仪器。该仪器能够有效地治疗尿道结石、膀胱结石、输尿管结石以及肾结石，尿路结石等泌尿疾病。除此之外本治疗机还可以应用于人体体表及组织气化、凝固、切割、止血等。而激光器的能量，峰值功率直接影响仪器的治疗效果。The holmium laser lithotripsy treatment system is an instrument for the treatment of stones. The instrument can effectively treat urethral stones, bladder stones, ureteral stones, kidney stones, urinary stones and other urinary diseases. In addition, this treatment machine can also be applied to human body surface and tissue gasification, coagulation, cutting, hemostasis, etc. The energy and peak power of the laser directly affect the therapeutic effect of the instrument.
目前大多数产品采用的是脉宽为200-600微秒之间的钬激光输出，根据文献介绍和自己的实验结果，通常输出峰值功率在百瓦量级。At present, most products use holmium laser output with a pulse width between 200-600 microseconds. According to literature introduction and own experimental results, the output peak power is usually on the order of hundreds of watts.
发明内容 Contents of the invention
为克服现有技术中的不足，本发明的目的在于提供一种具有较高峰值功率的钬激光碎石治疗系统。In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a holmium laser lithotripsy treatment system with higher peak power.
为了解决上述技术问题，实现上述目的，本发明通过如下技术方案实现：In order to solve the above-mentioned technical problems and achieve the above-mentioned purpose, the present invention is realized through the following technical solutions:
一种钬激光碎石光学系统，包括在一光轴上依次直线布置的全反射镜、第一波片、偏振器、HO:YAG激光晶体、第二波片和输出镜，所述HO:YAG激光晶体与第二波片之间还设置有一中红外波段调Q晶体。A holmium laser lithotripsy optical system, comprising total reflection mirrors sequentially arranged linearly on an optical axis, a first Wave plate, polarizer, HO:YAG laser crystal, second wave plate and output mirror, the HO:YAG laser crystal and the second A mid-infrared band Q-switching crystal is also arranged between the wave plates.
与现有技术相比，本发明的特点是在微秒级腔型基础上设计加入中红外电光调Q晶体，同时用波片进行光学修正以克服高能量泵浦引起的晶体退偏；实现高峰值功率的纳秒级钬激光均匀输出。Compared with the prior art, the present invention is characterized in that a mid-infrared electro-optic Q-switching crystal is designed on the basis of a microsecond-level cavity, and at the same time, optical correction is performed with a wave plate to overcome crystal depolarization caused by high-energy pumping; to achieve peak Nanosecond level holmium laser uniform output with high power.
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，并可依照说明书的内容予以实施，以下以本发明的较佳实施例并配合附图详细说明如后。本发明的具体实施方式由以下实施例及其附图详细给出。The above description is only an overview of the technical solutions of the present invention. In order to understand the technical means of the present invention more clearly and implement them according to the contents of the description, the preferred embodiments of the present invention and accompanying drawings are described in detail below. The specific embodiment of the present invention is given in detail by the following examples and accompanying drawings.
附图说明 Description of drawings
下面结合附图和实施方式对本发明作进一步详细的说明。The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
图1是本发明的钬激光碎石治疗系统的结构示意图。Fig. 1 is a schematic structural view of the holmium laser lithotripsy treatment system of the present invention.
图中标号说明：1、全反射镜，2、第一波片，3、偏振器，4、HO:YAG激光晶体，5、中红外波段调Q晶体，6、第二波片，7、输出镜。Explanation of symbols in the figure: 1, total reflection mirror, 2, the first Wave plate, 3, polarizer, 4, HO:YAG laser crystal, 5, mid-infrared band Q-switching crystal, 6, the second Wave plate, 7, output mirror.
具体实施方式 Detailed ways
参见图1所示，一种钬激光碎石治疗系统，包括在一光轴上依次直线布置的全反射镜1、第一波片2、偏振器3、HO:YAG激光晶体4、中红外波段调Q晶体5、第二波片6和输出镜7。Referring to shown in Fig. 1, a kind of holmium laser lithotripsy treatment system comprises total reflection mirror 1, the first linear arrangement successively on an optical axis Wave plate 2, polarizer 3, HO:YAG laser crystal 4, mid-infrared band Q-switching crystal 5, the second Wave plate 6 and output mirror 7.
在光学平台上通过调节架固定全反镜1、通过光学底座安装中红外电光调Q晶体5、在光学腔上安装HO:YAG激光晶体4、调节架固定输出镜7、调节架固定中红外调Q晶体5、调节架第一波片2和第二波片6，光学座固定偏振片3。Fix the total reflection mirror on the optical platform through the adjustment frame 1, install the mid-infrared electro-optic Q-switching crystal through the optical base 5, install the HO:YAG laser crystal on the optical cavity 4, fix the output mirror on the adjustment frame 7, fix the mid-infrared Q-switching crystal on the adjustment frame Q crystal 5, the adjustment frame is the first wave plate 2 and the second Wave plate 6, the optical seat fixes the polarizer 3.
进一步的，全反镜1采用2080nm全反射镀膜，输出镜7采用镀有2080nm波长的40％透射膜。调节全反镜1，调节输出镜7，使光路准直。调节中红外电光调Q晶体5使激光在静态下关门，调节全反镜1，输出镜7，偏振片3使光路准直。加入退压电压，输出动态光。Further, the total reflection mirror 1 adopts a 2080nm total reflection coating, and the output mirror 7 adopts a 40% transmission film coated with a wavelength of 2080nm. Adjust the total reflection mirror 1, adjust the output mirror 7, and make the optical path collimated. Adjust the mid-infrared electro-optic Q-switching crystal 5 to close the laser in a static state, adjust the total reflection mirror 1, the output mirror 7, and the polarizer 3 to collimate the optical path. Add back-off voltage to output dynamic light.
本发明的钬激光碎石治疗系统，实现纳秒级钬激光器的高峰值功率输出，拥有更高的峰值功率和更短的作用时间(峰值功率提高了3000倍，最窄脉冲宽度减小到原来的1/3000)，具有极强的光动力。医生可以根据需要选择最合适的激光脉冲宽度进行临床手术，使得激光与人体作用时间更短，热效应更小，临床使用更高效、安全、可靠。The holmium laser lithotripsy treatment system of the present invention realizes the high peak power output of the nanosecond-level holmium laser, has higher peak power and shorter action time (the peak power is increased by 3000 times, and the narrowest pulse width is reduced to the original 1/3000), with a strong photodynamic force. Doctors can choose the most suitable laser pulse width for clinical surgery according to their needs, so that the laser interacts with the human body for a shorter time, the thermal effect is smaller, and the clinical use is more efficient, safe and reliable.
上述实施例只是为了说明本发明的技术构思及特点，其目的是在于让本领域内的普通技术人员能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡是根据本发明内容的实质所作出的等效的变化或修饰，都应涵盖在本发明的保护范围内。The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and its purpose is to enable those of ordinary skill in the art to understand the content of the present invention and implement it accordingly, and cannot limit the protection scope of the present invention. All equivalent changes or modifications made according to the essence of the present invention shall fall within the protection scope of the present invention.
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| CN201010581420.5A CN102525650B (en) | 2010-12-09 | 2010-12-09 | Holmium laser lithotrity system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106137388A (en) * | 2015-04-22 | 2016-11-23 | 上海瑞柯恩激光技术有限公司 | Holmium laser therapy instrument |
| CN109512576B (en) * | 2018-11-20 | 2019-12-13 | 吉林省科英激光股份有限公司 | Electro-optical Q switch double-frequency double-pulse laser stone crushing system |
| CN111864517B (en) * | 2020-07-29 | 2023-04-18 | 中国科学院长春光学精密机械与物理研究所 | Laser pulse waveform purification method and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2037064A (en) * | 1978-12-15 | 1980-07-02 | Commw Of Australia | Lasers |
| CN2781607Y (en) * | 2005-03-17 | 2006-05-17 | 中国人民解放军武汉军械士官学校光电技术研究所 | Unmodulation solid laser for electro-optical modulating |
| CN101022203A (en) * | 2007-03-13 | 2007-08-22 | 中国科学院上海光学精密机械研究所 | YAG laser with double electro-optical modulation QNd |
| CN202020543U (en) * | 2010-12-09 | 2011-11-02 | 苏州生物医学工程技术研究所 | Holmium laser stone-breaking therapy system |
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| DE102008006661B3 (en) * | 2008-01-29 | 2009-10-22 | Deutsch Französisches Forschungsinstitut Saint Louis | Laser arrangement with phase-conjugate mirror |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2037064A (en) * | 1978-12-15 | 1980-07-02 | Commw Of Australia | Lasers |
| CN2781607Y (en) * | 2005-03-17 | 2006-05-17 | 中国人民解放军武汉军械士官学校光电技术研究所 | Unmodulation solid laser for electro-optical modulating |
| CN101022203A (en) * | 2007-03-13 | 2007-08-22 | 中国科学院上海光学精密机械研究所 | YAG laser with double electro-optical modulation QNd |
| CN202020543U (en) * | 2010-12-09 | 2011-11-02 | 苏州生物医学工程技术研究所 | Holmium laser stone-breaking therapy system |
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