CN102573991B - 手持式低水平激光治疗设备 - Google Patents
手持式低水平激光治疗设备 Download PDFInfo
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Abstract
一种激光治疗装置,包括:激光二极管,其适于产生单色激光束;透镜,其适于接收直接来自于所述激光二极管的光束并且利用所述激光二极管的自然发散性形成基本上相干的单色、平行光束;其中形成的光束适于在垂直于光束的传播方向的平面上形成延伸的照明区域,其中所述照明区域的长度至少是所述照明区域的宽度的大小的两倍;控制器,其适于控制所述激光二极管的激活;以及套子,其包封所述激光二极管、所述透镜以及所述控制器,其中所述套子适于由用户手持。
Description
技术领域
本发明大体上涉及用于治疗人和动物的手持式低能量激光装置。
背景技术
已知了将光用于治疗人和动物。自从人类的早期,人们就已经使用了来自太阳的光协助治愈小疾病。在20世纪中期,在二战中人们试图使用集中光来治疗受伤的士兵。后来,基于受激发射的量子现象的激光提供了用于治疗患者的集中光的良好光源。激光允许了使用选择强度的单色的、基本相关的光。这在治疗人类的各种小疾病中被发现是有效的。
仔细选择波长的、相干地指向于人的光的使用提供了用于选择性地刺激活细胞中的进程的能量。这能够有助于增加血流、刺激细胞活性以及增强细胞间的交流。激光治疗已经被应用至各种小疾病,诸如:
a、各种骨骼和组织疼痛以及损伤
1、风湿性和/或慢性关节炎症;
2、运动损伤、伤口和新疤痕;
3、下背和上背疼痛;颈部疼痛;
4、足底筋膜炎和扭伤;
5、网球肘发炎;
6、跟腱感染;
7、腕管综合症;
8、淋巴水肿;
b、医疗皮肤病学
1、痤疮;
2、灼伤;
3、疤痕;
4、痔疮;
5、白斑症(诸如皮肤脱色);
6、单纯疱疹;
c、美学
1、面部老化以及皮肤松垂;
2、皱纹;
3、敏感皮肤;
4、孕后妊娠纹;
d、齿科应用;
e、兽医应用;
f、针刺治疗;
以及其他应用。
激光在治疗中的使用显示出减少了疼痛,促进了抗炎症活性,促进了治疗进程并且促进了皮肤恢复。
过去,光治疗由需要专门人才施用的大型、昂贵并且有风险的设施进行应用。因此,急需能够在家庭中使用的小型、用户安全的激光治疗装置。
发明内容
本发明的实施例的方案涉及用于使用手持式低水平激光治疗装置对人进行治疗的设备和方法。上述装置包括提供单色单相激光束的激光二极管,上述激光束在一个方向上以小角度(诸如5-7度之间)发散并且在垂直于第一方向的方向上以较大角度(诸如30-40度之间)发散。上述设备利用激光二极管的自然发散性(naturaldivergence)产生以单色、基本上相干并且平行的光束同时照明较大区域的光束。
所述设备包括将激光束转变成平行光束的透镜,其中来自较小发散角度的光线提供了狭窄的照明区域,而来自较大发散角度的光线提供了延伸的(elongated)照明区域。可选地,延伸的照明区域至少是狭窄的照明区域大小的两倍。在本发明的一些实施例中,照明区域形成为矩形区域。可替换地,照明区域是椭圆形区域。可选地,作为发散的结果光束保证了眼睛安全,其在每单元区域上提供较小的强度。
在本发明的一些实施例中,单色激光束是不可见红外线光束。可选地,激光束的波长在800nm至900nm之间。在本发明的示例性实施例中,使用可见光源(诸如LED)提供辅助的可见光束以补充不可见光束以使得用户将能够看到所述装置是激活的并且不会将装置指向他的眼睛。在本发明的一些实施例中,可见光束与不可见激光束一致。可替换地,可见光束照明围绕激光束的区域以在不可见激光束周围形成框从而增强用户安全。
在本发明的一些实施例中,眼睛安全机构通过对着待被照明的目标按压光发射端而被激活,所述装置由眼睛安全机构激活以防止用户无预防措施地发出激光束。可替换地或者附加地,在所述装置上可以有其他激活开关。
在本发明的一些实施例中,当所述装置被激活时,所述激光二极管被不连续地激活,诸如以50%或者更小的占空比。可选地,所述激光二极管的输出功率由伺服回路连续地控制,所述伺服回路监控所述激光二极管的输出并且更新其占空比以保持激光束输出的功率恒定,诸如响应于监测到的强度更新脉宽或者更新开启所述激光二极管的频率。
因此根据本发明的示例性实施例提供了一种激光治疗装置,包括:
激光二极管,其适于产生单色激光束;
透镜,其适于接收来自于所述激光二极管的光束并且利用所述激光二极管的自然发散性形成基本上相干的单色、平行光束;其中形成的光束适于在垂直于光束的传播方向的平面上形成延伸的照明区域,其中所述照明区域的长度至少是所述照明区域的宽度的大小的两倍;
控制器,其适于控制所述激光二极管的激活;以及
套子,其包封所述激光二极管、所述透镜以及所述控制器,其中所述套子适于由用户手持。
在本发明的一些实施例中,所述透镜是超环面透镜,其在产生所述照明区域的长度的方向和产生所述照明区域的宽度的方向上具有不同的透镜半径。可选地,由所述激光二极管产生的光束是红外线激光束。
在本发明的示例性实施例中,所述激光治疗装置包括可见光源,其产生与所述激光束结合的可见光束以提供可见光来作为不可见激光束存在的指示。可选地,所述可见光源安装成使得光源的像处于所述透镜的焦平面中。在本发明的示例性实施例中,所述可见光束适于围绕所述不可见激光束以形成包围所述不可见光束的框。
在本发明的示例性实施例中,所述控制器适于控制所述激光二极管的占空比。可选地,所述控制器适于更新所述激光二极管的占空比,以便尽管所述激光二极管的强度随着时间变化仍保持恒定的功率输出。在本发明的示例性实施例中,由所述激光二极管产生的光束的占空比初始地小于50%。可选地,所述装置包括安全机构,通过对着受照目标按压所述装置由所述安全机构来激活所述装置。在本发明的示例性实施例中,所述照明区域形成矩形或者椭圆形区域。可选地,形成的光束是眼睛安全光束。
根据本发明的示例性实施例进一步提供了一种激光治疗装置,包括:
激光二极管,其适于产生单色激光束;
透镜,其适于接收来自于所述激光二极管的光束;
控制器,其适于控制所述激光二极管的占空比并且保持恒定的功率输出;以及
套子,其包封所述激光二极管、所述透镜以及所述控制器,其中所述套子适于由用户手持。
根据本发明的示例性实施例进一步提供了一种激光治疗装置,包括:
激光二极管,其适于产生单色激光束;
透镜,其适于接收来自于所述激光二极管的光束;
控制器,其适于控制所述激光二极管的激活;以及
套子,其包封所述激光二极管、所述透镜以及所述控制器,其中所述套子适于由用户手持;并且其中所述装置是通过对着受照目标按压所述装置由所述安全机构激活的。
根据本发明的示例性实施例进一步提供了一种激光治疗装置,包括:
激光二极管,其适于产生单色激光束;
可见光源,其适于提供围绕由所述激光二极管形成的激光束的光束,从而在由激光束形成的照明图案周围形成框;
透镜,其适于接收来自于所述激光二极管的光束;
控制器,其适于控制所述激光二极管的激活;以及
套子,其包封所述激光二极管、所述透镜以及所述控制器,其中所述套子适于由用户手持。
附图说明
从结合附图的以下详细说明中,本发明将得到解释和更好的理解。在多于一个的附图中出现的等同的结构、构件或者部件,在其出现的所有附图中通常被标以相同或者相似的数字,其中:
图1是根据本发明的示例性实施例的用于实施激光治疗的手持式低水平激光治疗(LLLT)装置的示意图;
图2是根据本发明的示例性实施例的用于制造低水平激光治疗装置的内部结构的示意图,展现了使用激光二极管的自然发散性和透镜构造;
图3是根据本发明的示例性实施例的用于制造具有安全激活机构的低水平激光治疗装置的内部结构的示意图;
图4是根据本发明的示例性实施例的用于制造具有在激光束上叠加可见光束的组合机构的低水平激光治疗装置的内部结构的示意图;以及
图5是根据本发明的示例性实施例的控制激光二极管的占空比的方法的流程图。
具体实施方式
图1是根据本发明的示例性实施例的用于实施激光治疗的手持式低水平激光治疗(LLLT)装置100的示意图。在本发明的示例性实施例中,装置100直接由嵌入在装置100中的激光二极管170的自然发散提供通过透镜变平行的延伸单色相干激光束170作为输出。与现有技术的装置相比,不是将来自激光二极管的激光束集中至一个点以在一个点上具有更强的照明,而是利用激光二极管的自然趋势形成延伸光束(elongatedbeam)以覆盖更大的区域。典型地,标准的激光二极管沿着其宽度具有大约5-7度的发散并且沿着其长度具有大约30至40度的发散。装置100不是使用透镜来将光束校正成窄光束,而是使用透镜形成平行的延伸光束以覆盖更大的区域,诸如3-6cm乘以0.5至1cm的区域。在本发明的示例性实施例中,照明区域的长度至少是照明区域的宽度的两倍。在本发明的示例性实施例中,产生的延伸光束基本上是相干的,光束具有激光二极管发射所接受的基本共同的相位。
可选地,通过照明大的区域,每个点由具有对人眼无害的强度的更弱并且更安全的激光束(诸如眼睛安全光束)照明。通过照明更长的时间或者增加激光二极管的强度,能够将更多的功率更加准确地传递至特定的区域而不移动装置100。相反地,在单点激光中,一个点被强烈地照明并且区域是通过横跨用户的皮肤移动光束以及照明每个点来处理的。
在本发明的示例性实施例中,光源和用于给装置100提供动力的电子电路装入设计为适合用户手的人体工学套子110中。可选地,装置100包括开启/关闭开关125,其将装置100开启以及关闭。当装置100处于开启状态时,通过按动位于套子110一侧的激活开关130可以激活装置100。可替换地或者附加地,当使用装置100时,可以通过对着被辐射的人或者目标推动眼睛安全激活开关105来激活装置100。因为其不会意外地允许用户将光射进用户眼睛中,所以当对着被辐射的人按压时的激活增加了装置100的安全。在一些情形中,对着用户的皮肤按压是有利的,因为这可以减小血流并且增强光吸收的效率。可替换地,在一些情形中,用户可能有伤口并且优选的是不要对着用户的皮肤按压。
在本发明的一些实施例中,装置100由内部电源(诸如电池135)提供动力。可替换地或者附加地,装置100能够经由插进诸如家用插座的外部电源的动力线缆(未示出)由外部电源提供动力。可选地,当装置插进外部电源时,电池可以被再充电。
在本发明的一些实施例中,装置100包括显示器115,显示器例如是LCD显示器,其示出了各种信息,诸如电池状态,和/或定时器/计数器。在本发明的示例性实施例中,用户使用选择器120将显示器115上的定时器设定至预选择值,上述值可代表当装置由用户激活时装置保持激活期间的以秒计的时间量。一旦其计数至预选择的时间量,装置将进行倒计数并且自动地使得装置不工作。诸如如果用户希望使得照明区域特定的时间量,用户以期望的时间量设定定时器并且激活装置100。装置100将照明该区域直至时间耗尽。
图2是根据本发明的示例性实施例的用于制造低水平激光治疗装置100的内部结构的示意图,展现了激光二极管的自然发散性和透镜构造。在本发明的示例性实施例中,激光二极管210安装在底座230上。在本发明的示例性实施例中,激光二极管210选择为发出具有800-900nm之间的单色波长和至少100mw的功率输出的红外辐射,以使得其在治疗用户时是有效的。可选地,波长被选择为在提供能量至用户的生物细胞方面具有最佳的性能,因此如果发现其他的波长在治疗特定疾病中更有效时,可使用其他的波长(诸如可见光或者紫外线光)。附加地,激光二极管120可以选择为具有更强或者更弱的功率输出。
在本发明的示例性实施例中,来自激光二极管210的光在一个方向上以小角度260发散,并且在垂直的方向上以较大角度250发散。可选地,透镜220与激光二极管210相对地布置,从而通过使发散的激光束平行以及使延伸单色相干激光束170在用户皮肤上形成照明来利用由激光二极管210产生的激光束的自然发散性。
在本发明的示例性实施例中,透镜220是在两个方向上具有不同的透镜半径的超环面透镜,因此激光二极管210形成的发散光束将垂直于透镜延伸并且以单色相干激光束170形成延伸的照明。在本发明的一些实施例中,透镜220具有矩形或者椭圆形并且产生矩形或者椭圆形的照明。可替换地或者附加地,透镜220可以是单透镜、双透镜或者透镜的任意其他组合,只要其产生延伸单色相干激光束170以辐射用户。可选地,除透镜以外的构件可影响相干激光束170的方向和相位的统一。
图3是根据本发明的示例性实施例的用于制造具有眼睛安全激活机构300的装置100的内部结构的示意图。如上文所述,在本发明的示例性实施例中,当装置100开启时,能够通过对着用户的身体按压眼睛安全激活开关105来激活装置100。可选地,眼睛安全激活开关105连接至两个滑件310,并且2个弹簧330一侧一个地插在滑件上。当眼睛安全激活开关105被推进套子110中时,滑件310向内移动并且压在用于指令控制器240激活激光二极管210的两个微型开关320上。眼睛安全激活开关105的使用防止了用户激活激光二极管210以及将激光二极管210朝向于其眼睛或者他人的眼睛对准。
图4是根据本发明的示例性实施例的用于制造具有在激光束170上叠加可见光束160的组合机构的装置100的内部结构的示意图。在本发明的示例性实施例中,可见光源410(诸如LED)在激光二极管210上方安装在结构件430上以提供可见光源。可选地,结构件430包括抛光的背面420(诸如镜子)以朝向于透镜220反射可见光,以使得其将被叠加在来源自激光二极管210的光线上。在本发明的一些实施例中,仅抛光了背面上的特定区域以控制可见光束产生的几何形状。在本发明的示例性实施例中,产生光束的横截面包括由激光束170形成的内部区域和由可见光束160形成的较大区域,该较大区域围绕内部区域并且在内部区域周围提供了可见的边界,以使得用户知道不可见激光束的位置。
可选地,通过为用户提供不可见光170也存在并且如果对准人眼可能危险的指示,可见光束160用作安全设施。
优选地安装了LED410,以使得光源的像在透镜220的焦点中。
在本发明的示例性实施例中,激光二极管210以恒定频率以短脉冲操作,诸如提供25%-50%占空比、具有25KHz频率的10-20μs的短脉冲,使得产生的激光束具有足够的能量穿透用户皮肤,但是每区域的总能量输出率足够低使得一旦意外射进人眼时保持眼睛安全。在许多装置中,激光二极管210初始地设置有随着时间变差的特定功率输出直至激光二极管210必须被更换(诸如在使用3000-5000小时之后)。
图5是根据本发明的示例性实施例的控制激光二极管的占空比的方法的流程图500。
在本发明的示例性实施例中,激光二极管210由控制器240控制,控制器240检测激光二极管的功率输出(510)。可选地,控制器240将功率输出和存储值相比较以确定功率输出是否在容差范围内(530)或者激光二极管210是否已经变弱并且运行不如预期。
如果功率输出在容差范围内,那么控制器继续周期性地监控激光二极管210的功率输出。否则,控制器240诸如通过增加脉冲长度或者通过提高激光二极管210的激活频率,计算出将提供期望功率输出的修正的占空比(540)。控制器240改变占空比(550),以使得装置100保持恒定的功率输出。可选地,尽管激光二极管210的强度随着时间变弱,但控制占空比能够延长使用装置100的寿命而不替换激光二极管210。可选地,占空比可从小于50%变化至大于70%,诸如从10%至100%以保持恒定的功率输出。
在本发明的示例性实施例中,使用了更强的激光二极管(诸如100-900mw)而提供了与持续处于工作中(100%占空比)的较弱的激光二极管(诸如小于100mw)所产生的功率输出相同的功率输出。其结果是,因为光束间歇地出现并且在脉冲之间目标能够冷却,所以即使激光束的强度更大,激光束仍然更加安全。当将光束作用至用户皮肤时,在相同时间量上传递了相同的总功率。
基于上述说明,应当注意的是装置100包括增强用户安全和/或增强诊疗效果的多个特征件:
1、围绕激光束的可见指示以提供对激光束的位置的指示;
2、具有控制的脉冲宽度和占空比的较强的激光束防止眼睛损坏,因为光束仅在每秒中的短时间段内是激活的;
3、在宽区域上发散的激光束能够以眼睛安全光束同时治疗更大的区域;
4、安全激活开关仅在对着目标区域按压其时被激活。
应当理解的是上述方法和设备可以变化为多种形式,包括省略或者添加步骤、改变步骤的顺序以及使用的装置的类型。应当理解的是,不同的特征件可以不同的方法组合。特别是,不是上文中在特定实施例中示出的所有结构件在本发明的每个实施例中都是必须的。上述特征件的其他组合也应当认为在本发明的一些实施例的范围内。
本领域技术人员应当理解的是本发明并不限于上文所特别示出和描述的。本发明的范围仅由附随的权利要求限定。
Claims (15)
1.一种激光治疗装置,包括:
激光二极管,其适于产生沿着两个垂直方向自然发散的单色激光束;
透镜,其适于接收直接来自于所述激光二极管的光束并且利用所述激光二极管沿着两个垂直方向的自然发散性形成在所述两个垂直方向上基本上相干的单色、平行光束作为所述透镜的输出;由于在利用所述激光二极管的所述自然发散性的同时使所述光束平行,形成的光束适于在垂直于光束的传播方向的平面上形成延伸的照明区域,其中所述照明区域的长度至少是所述照明区域的宽度的大小的两倍;
控制器,其适于控制所述激光二极管的激活;以及
套子,其包封所述激光二极管、所述透镜以及所述控制器,其中所述套子适于由用户手持。
2.根据权利要求1所述的激光治疗装置,其中,所述透镜是超环面透镜,其在产生所述照明区域的长度的方向和产生所述照明区域的宽度的方向上具有不同的透镜半径;
其中,所述照明区域的长度的方向和所述照明区域的宽度的方向上的所述半径经选择以提供由于所述激光二极管的所述自然发散性而输出在所述两个垂直方向上平行的光束。
3.根据权利要求1所述的激光治疗装置,其中,由所述激光二极管产生的光束作为红外线激光束展现出800-900nm之间的波长。
4.根据权利要求3所述的激光治疗装置,其进一步包括可见光源,其经配置以产生与所述激光束结合的可见光束以提供可见光来作为红外线激光束存在的指示。
5.根据权利要求4所述的激光治疗装置,其中,所述可见光源安装成使得所述光源的像处于所述透镜的焦平面中。
6.根据权利要求5所述的激光治疗装置,其中,所述装置经配置以产生所述可见光束,所述可见光束围绕所述红外线激光束以形成包围所述红外线激光束的框。
7.根据权利要求1所述的激光治疗装置,其中,所述控制器适于控制所述激光二极管的占空比。
8.根据权利要求7所述的激光治疗装置,其中,所述控制器适于增加所述激光二极管的占空比,以便尽管由于性能恶化而造成所述激光二极管的强度随着时间变化仍保持恒定的功率输出。
9.根据权利要求7所述的激光治疗装置,其中,所述控制器经配置以操作所述激光二极管以产生初始小于50%的所述光束的占空比。
10.根据权利要求1-9中任一项所述的激光治疗装置,其中,所述装置包括安全机构,通过对着受照目标按压所述装置由所述安全机构来激活所述装置,所述安全机构包含:
位于所述套子中的两个微型开关;以及
位于所述透镜的相对两侧上的两个弹簧承载滑件,各个弹簧承载滑件经配置以分别压下各自的所述微型开关,所述微型开关再经配置以指令所述控制器以激活所述激光二极管。
11.根据权利要求1-9中任一项所述的激光治疗装置,其中,所述照明区域形成矩形或者椭圆形区域。
12.根据权利要求1-9中任一项所述的激光治疗装置,其中,在所述透镜的背面的所述光束的横截面与所述背面的大小和形状相同,并且所述照明区域与所述横截面的所述大小和形状相同。
13.根据权利要求1-9中任一项所述的激光治疗装置,其中,所述激光治疗装置经配置以使用直接来自于所述透镜的所述形成的光束照射所述套子外的表面。
14.根据权利要求1-9中任一项所述的激光治疗装置,其中,所述激光治疗装置经配置以使用直接来自于所述透镜的所述形成的光束照射表面。
15.一种使用激光治疗装置的方法,包括:
使用激光二极管,产生沿着两个垂直方向自然发散的单色激光束;以及
使用透镜,接收直接来自于所述激光二极管的光束,并且利用所述激光二极管沿着两个垂直方向的自然发散性形成在所述两个垂直方向上基本上相干的单色、平行光束作为所述透镜的输出;由于在利用所述激光二极管的所述自然发散性的同时使所述光束平行,形成的光束在垂直于光束的传播方向的平面上形成延伸的照明区域,其中所述照明区域的长度至少是所述照明区域的宽度的大小的两倍,
其中,所述激光二极管的激活通过控制器来控制;以及
所述激光二极管、所述透镜以及所述控制器被套子所包封,其中所述套子由用户手持。
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US12/534,878 US8790382B2 (en) | 2009-08-04 | 2009-08-04 | Handheld low-level laser therapy apparatus |
US12/534,878 | 2009-08-04 | ||
PCT/IL2010/000584 WO2011016020A1 (en) | 2009-08-04 | 2010-07-22 | Handheld low-level laser therapy apparatus |
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MX2012001515A (es) | 2012-06-08 |
IL217816A0 (en) | 2012-03-29 |
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BR112012002593A2 (pt) | 2016-03-22 |
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AU2010280362B2 (en) | 2016-01-14 |
WO2011016020A1 (en) | 2011-02-10 |
EP2461868B1 (en) | 2016-06-29 |
ZA201201510B (en) | 2012-11-28 |
KR20120087896A (ko) | 2012-08-07 |
EA024079B1 (ru) | 2016-08-31 |
DK2461868T3 (en) | 2016-09-26 |
US20140336732A1 (en) | 2014-11-13 |
US8790382B2 (en) | 2014-07-29 |
EP2461868A1 (en) | 2012-06-13 |
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US9358402B2 (en) | 2016-06-07 |
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