TWM280214U - Multi-function ultraviolet laser for vision correction - Google Patents

Multi-function ultraviolet laser for vision correction Download PDF

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Publication number
TWM280214U
TWM280214U TW94207773U TW94207773U TWM280214U TW M280214 U TWM280214 U TW M280214U TW 94207773 U TW94207773 U TW 94207773U TW 94207773 U TW94207773 U TW 94207773U TW M280214 U TWM280214 U TW M280214U
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laser
ultraviolet
optical path
mirror
transmission arm
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TW94207773U
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Chinese (zh)
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Jui-Teng Lin
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New Vision Inc
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M280214 八、新型說明: 【新型所屬之技術領域】 本新型涉及一種眼科雷射治療設備,尤其是一種可用以治療含 近視、視遠、散光及老視等眼疾的紫外雷射多功能視力治療儀'。 【先前技術】 老視的原因是年齡增加而造成的眼球變化。其可能的治療方式 含,老視眼鏡或雙焦距眼鏡Μ吏用雷射治療老視的技術簡稱&雷射 老花回復術(LAPR,Laser Presbyopia Treatment)。目前所使用的 LAPR治療儀,乃基於美國專利號6, 258, 082 ; 6, 263, 879及國際專利 鲁 PTCW0 02/36029中所提的技術方案,此方案使用紅外雷射的光纖 耦合及掃瞄式。而受限於使用紅外雷射光纖耦合及掃描式 (scanning),現有光纖技術對紫外光的耦合(傳輸)效率很低(約 40到50%),而且受到光纖表面低抗損的限制,很難達到lpt手術所 需傳輸到眼球表面的紫外光雷射能量,至少約3毫焦(mj)。同時, 該治療儀只適用於老視治療之單一功能。 另外,波長為193奈米的準分子紫外雷射器,目前被廣泛使用在 近視治療中,此技術被稱作準分子雷射原委角膜磨鑲術(也稱為板 層角膜切削術,簡稱為LASIK)。此治療儀使用一對掃瞄鏡,稱為掃M280214 8. Description of the new type: [Technical field to which the new type belongs] The new type relates to an ophthalmic laser treatment device, particularly an ultraviolet laser multi-functional vision therapeutic device that can be used to treat eye diseases including myopia, hyperopia, astigmatism, and presbyopia. '. [Previous technique] Presbyopia is caused by changes in eyeballs caused by increasing age. The possible treatment methods include presbyopia glasses or bifocal glasses. The technique of laser treatment of presbyopia is referred to as & Laser Presbyopia Treatment (LAPR). The currently used LAPR therapy instrument is based on the technical solutions proposed in US Patent Nos. 6, 258, 082; 6, 263, 879 and International Patent Lu PTCW0 02/36029. This solution uses infrared laser fiber coupling and scanning. Aiming. Limited by the use of infrared laser fiber coupling and scanning, the existing fiber technology has low coupling (transmission) efficiency to ultraviolet light (about 40 to 50%), and is limited by the low resistance of the fiber surface. It is difficult to achieve at least about 3 millijoules (mj) of ultraviolet laser energy transmitted to the surface of the eyeball required for lpt surgery. At the same time, the device is only suitable for a single function of presbyopia treatment. In addition, an excimer ultraviolet laser with a wavelength of 193 nanometers is currently widely used in the treatment of myopia. This technique is called excimer laser keratomileusis (also known as laminectomy, abbreviated as LASIK). This device uses a pair of scanning mirrors called scans

瞒式(Scanning)LASIK。此技術乃基於美國專利號5, 520, 679。掃 ^式LASIK因其使用光斑大小在眼球表面一般為丨·〇到2· 5毫 # 米,所以不適合用於治療老視,老視雷射治療要求光斑大小約為 0· 5到1· 5)毫米。此外治療近視和老視兩者的切除方式及部位也完 全不同:LASIK切除角臈表面中央約6毫米部位,而lpt則對角膜 ' 外圍^鞏膜,實施對稱性性切除深度約〇· 4到1. 4毫米。LASIK及LPT 都是高價位大型設備,而兩者的技術及設備上的整合尚待研發。 M280214 【新型内容】 創作目的及概述: 本新型涉及一種眼科雷射治療設備,尤其是一種可用以治療含 近視、視遠、散光及老視等眼疾的紫外雷射多功能視力治療儀。 創作詳細說明: 本新型的目的在於改進現有技術中的不足,提供一種既可以用 於雷射老視治療(LPT),也可以用於近視治療的板層角膜切削術 (LASIK),可一機兩用的紫外雷射多功能視力治療儀。 本新型提供一種紫外雷射多功能視力治療儀,其包括計算機控 制系統控制的紫外光雷射器與一對掃瞄鏡片組,還包括一個紫外 光學聚透鏡片組,其設置在所述雷射器和所述掃描鏡片組之間, 並置於所述雷射器發出雷射的光路上的支架上,該支架可運動地 置於機架上。 本實用新型提供的紫外雷射多功能視力治療儀,使用現有掃瞄 式LASIK機械結構,其包括計算機控制系統控制的紫外光雷射器 與一對掃瞄鏡片組,在此基礎上還包括一個紫外光學聚透鏡片 組二其設置在所述雷射器和所述掃描鏡片組之間,並置於所述雷 射器發出雷射的光路上的支架上,該支架可運動地置於機架上, 通^該運動可以使所述紫外光學聚透鏡片組或掃描鏡片組處於 所述光路上或離開所述光路,或調整其間的間距以調節不同的焦 距來提供不同大小的光斑用以分別適合於用作Lpt和LASIK。當要 做雷射老花恢復術時,使所述紫外光學聚透鏡片組置於所述光路 上而掃描儀移出光路;當做近視治療時,則通過將所述紫外光學 聚透鏡片組移出光路而掃描儀置於光路上即可。也可以不將上述 鏡片移出光路,而是通過移動它們調整其間的間距從而調整声 距,經由機械或電動控制紫外光學聚透鏡片組或掃瞄鏡片組,提 供LASIK及LPT在眼球表面的光斑大小。 在所述紫外光學聚透鏡片組之後另加設一個紫外45度高反 鏡,其置於所述雷射器發出雷射的光路上的支架上,該支架可運 動地置於機架上,使雷射器發出的雷射可以增加一個支光路,在 所述支光路上,設置一所述紫外光學聚透鏡片組,在其後的支光 路上還設置一個傳輸臂,所述傳輸臂的中空腔體中與光路呈45度 角且可微調角度地設有至少兩個對紫外光波長約0.19到〇 26 M280214 微米的反射率在98%以上的紫外高反鏡。 為了同樣的目的,可以對原有的近視治療儀進行結構改變,可以 將一個所述紫外光學聚透鏡片置於原有的雷射主光路上的雷射器 和一對ΧΥ掃描鏡片組之間,另外,在該主光路上所述之後另加設 一個紫外45度高反鏡,使雷射器發出的雷射可以增加一個支光 路:主光路是經一對所述掃描片組到達眼球的適合於治療近視的 雷射光路,在所述支光路上,設置另一個所述,在其後的支光路 上還設置一個傳輸臂,當治療老花眼時,由雷射器發出的雷射通 過所設置在主光路上的紫外光學聚透鏡片組和紫外45度高反鏡形 成所述支光路,雷射再通過另一個聚透片而進入所述傳輸臂的一 個琿’在傳輸臂内通過其中的紫外高反鏡的反射傳送,再由傳輸 ,臂的另一個埠輸出,在使用時傳輸臂的輸出埠輸出的雷射照射在 被治療的眼球上,進行老花眼的手術治療。為了便於使用時適應 各種位置’所述傳輸臂最好為多節活動式結構。傳輸臂内45度角 高反鏡的角度微調裝置是各自單獨設置的,其可以是設於傳輸臂 腔體壁上的常用的機械調節裝置。通過該裝置的適當微調,可以 確保光路中心位置不受所述多節活動式結構活動的影響,可隨時 保持在所要求的0· 5毫米偏差範圍内,並達到高反效率。這種中心 位置的要求是現有技術中的傳輸臂’在用于其他場合如美容等應 用時所沒有的’而在LPT應用中要有較高的要求,而高反鏡具有角 度微調裝置就可以滿足使用的要求,在傳輸臂内設可微調的'高反 鏡,可以大大提高傳輸臂對紫外光的傳輸效率而滿足老花眼手術 _ 治療的需要。為了能夠方便地調節本治療儀發出的雷射的光斑的 大小和形狀以適應老花眼的手術治療,治療老花眼的支光路上加 設聚透片組’使雷射由該聚透鏡片通過,通過調整該聚透鏡片的 焦距和其與所述高反的距離可以容易地調整本治療儀發出的雷 射光斑的大小。在用於手術治療老花眼中,紫外雷射的光斑大小 也是關鍵問題,該手術中要求光斑小於LASIK的應用1· 〇到2 5 微米,為0.5到1.5微米。因此,設置聚透鏡片可以容易地滿足本 使用要求。而當進行近視治療時,則將設於主光路上的所述聚透 鏡片和高反鏡或只將高反鏡移出光路,使雷射通過一對所述掃描 鏡片組或還通過聚透鏡片到被治療的眼球。在所述光路上設置紫 外45度高反鏡和聚透片組,其置於所述雷射器發出雷射的光路上 的支架上,該支架可運動地置於機架上,在其形成的光路上設置一 所述傳輸臂。 7 M280214 還有上述一種更簡單的方式使一台雷射治療儀同時適應老花 眼和近視治療的需要:在至少具有雷射器和一對χγ掃描鏡片組的 近視治療儀的輪出光路上設置紫外45度高反鏡和聚透鏡片組,在 其形成的光路上設置所述傳輸臂。 當治療,視(LASIK)時,在所添加的所述紫外45度高反鏡和聚透鏡 片組之前的光路上進行,而治療老花眼⑴ρΤ)時,則在所述傳輸臂 的光出口端進行。這種結構的治療儀在改進上最簡單,效果也比較 好。 本新型提供的雷射器提供的是脈沖式準分子紫外雷射(波長 193奈米nm)或固體紫外雷射(波長211到266奈米),脈沖寬度 約3到200奈秒(ns),雷射頻率約5到500赫茲,雷射器紫外光在病 馨士眼球表面功率約〇·1到2·〇瓦(watt)。傳輸臂使用45度紫外光 高反鏡,傳輸雷射能量到眼部,為多節活動式長約5〇到150公 分,並使用45度紫外光高反鏡。紫外光學聚透鏡片組使用於LPT及 LASIK,種模式,其光斑大小可選擇(在眼球表面)分別為:〇 5到 L 0毫米及1,0到2. 5毫米。兩種手術的切除方式也不同:使用為 LASIK時,切除角膜表面中央約6毫米直徑範圍,而使用為jjyp則 對角膜外圍的鞏膜,實施對稱狀切除,深度約〇·4到1· 4毫米。 但使用本治療儀可以方便地調整,一台設備滿足兩種手術的要求, 另外,在治療老花眼中,由於光路上使用了高傳輸效率的傳輸臂, 從而使手術所需要的光斑大小和雷射能量都得到很好地滿足。 所述聚透鏡片是一個聚透鏡片組,其是兩組或兩組以上鏡片組 g 成,其為圓形透鏡或橢圓透鏡或兩者的組合。 所述紫外光學鏡片組的支架的傳動裝置與機械或電動控制裝 置連接以提供可選擇的眼球表面切除所需兩種雷射光斑大小約 0· 5到1· 5毫米及1.0到2. 5毫米。 本新型提供的紫外雷射多功能視力治療儀的有益效果是,結合 使用現有LASIK機械結構,提供了一種雙功能雷射視力治療儀可同 時使用為板層角膜切削術(LASIK)及雷射老視治療(LPT)以取得 經濟及技術實用價值。此設備將有很大的經濟及技術整合實用價 值。經由鏡片組或還包括紫外45度高反鏡和傳輸臂與現有掃猫式 LASIK機械結構之配合使用,分別提供(LASIK)及雷射老視治^ (LPT)在眼球表面紫外光光斑大小,形狀及能量之要求。 M280214 【實施方式】 最佳實施例: 下面結合附圖對本新型作進一步說明。 具體實施方式: 實施例1:Scanning LASIK. This technology is based on US Patent No. 5,520,679. Scanning LASIK is generally not suitable for the treatment of presbyopia because of the spot size on the eyeball surface, which is not suitable for the treatment of presbyopia. The presbyopia laser treatment requires a spot size of about 0.5 to 1.5. ) Mm. In addition, the resection methods and sites for treating myopia and presbyopia are completely different: LASIK removes about 6 mm of the center of the corneal surface, and lpt performs a symmetrical resection of the cornea 'outer sclera to a depth of about 0.4 to 1 . 4 mm. LASIK and LPT are high-priced large-scale equipment, and the technology and integration of the two are yet to be developed. M280214 [New content] Creation purpose and overview: The new model relates to an ophthalmic laser treatment device, especially a multifunctional ultraviolet laser vision treatment device that can be used to treat eye diseases including myopia, hyperopia, astigmatism, and presbyopia. Creation details: The purpose of this new model is to improve the shortcomings in the existing technology, and provide a lamellar keratectomy (LASIK) that can be used for both laser presbyopia (LPT) and myopia treatment. Dual-use UV laser multi-functional vision therapy device. The present invention provides a multifunctional ultraviolet laser vision treatment instrument, which includes a UV laser controlled by a computer control system and a pair of scanning lens groups, and also includes a UV optical poly lens group, which is disposed on the laser. Between the scanner and the scanning lens group, and placed on a bracket on the optical path of the laser emitted by the laser, the bracket is movably placed on the frame. The utility model provides a multifunctional ultraviolet laser vision therapy instrument, which uses an existing scanning LASIK mechanical structure, and includes a ultraviolet laser controlled by a computer control system and a pair of scanning lens groups. On this basis, it also includes a The second group of ultraviolet optical condenser lenses is disposed between the laser and the scanning lens group, and is placed on a bracket on the laser light path emitted by the laser, and the bracket is movably placed on a rack In addition, through this movement, the ultraviolet optical condensing lens group or the scanning lens group can be placed on or away from the optical path, or the interval therebetween can be adjusted to adjust different focal lengths to provide different-sized light spots for respectively Suitable for use as Lpt and LASIK. When laser presbyopia recovery is to be performed, the ultraviolet optical condensing lens group is placed on the optical path and the scanner is moved out of the optical path; when treating myopia, the ultraviolet optical condensing lens group is moved out of the optical path. The scanner can be placed on the optical path. It is also possible not to move the above lenses out of the optical path, but to adjust the distance between them to adjust the sound distance by moving them. By mechanically or electrically controlling the ultraviolet optical lens group or scanning lens group, the LASIK and LPT spot sizes on the eyeball surface are provided. . After the ultraviolet optical lens group, a UV 45-degree high-reflection mirror is additionally installed on a bracket on the optical path of the laser emitted by the laser, and the bracket is movably placed on a rack. The laser emitted by the laser can increase a branch optical path. The ultraviolet optical condenser lens group is arranged on the branch optical path, and a transmission arm is further provided on the subsequent branch optical path. The hollow cavity is at a 45-degree angle to the optical path and at a finely adjustable angle, at least two ultraviolet high mirrors having a reflectance of more than 98% for a wavelength of about 0.19 to 〇26 M280214 microns of ultraviolet light are provided. For the same purpose, the structure of the original myopia treatment device can be changed, and one of the ultraviolet optical condenser lenses can be placed between the original laser main optical path and a pair of XY scanning lens groups. In addition, an additional UV 45-degree high-reflection mirror is added after the main optical path, so that the laser emitted by the laser can increase a branch optical path: the main optical path reaches the eyeball through a pair of the scanning film groups A laser light path suitable for treating myopia, another said light path is provided on the branch light path, and a transmission arm is provided on the subsequent light path. When treating presbyopia, the laser emitted by the laser passes through the light source. The ultraviolet optical condenser lens set and the UV 45-degree high-reflection mirror set on the main optical path form the branch optical path, and the laser passes through another condenser lens and enters one of the transmission arms and passes through the transmission arm. The reflection transmission of the UV high-mirror mirror is transmitted by the other port of the arm. When in use, the laser output by the output port of the transmission arm is irradiated on the eyeball to be treated for presbyopia surgery. In order to adapt to various positions during use, the transmission arm is preferably a multi-section movable structure. The 45-degree angle of the high-mirror angle adjustment device in the transmission arm is set separately. It can be a commonly used mechanical adjustment device on the cavity wall of the transmission arm. Through proper fine adjustment of the device, it can be ensured that the center position of the optical path is not affected by the multi-section movable structure activity, and can be kept within the required deviation range of 0.5 mm at any time, and achieves high reflection efficiency. This kind of central position requirement is that the transmission arm in the prior art is 'unavailable when used in other applications such as beauty'. However, it has higher requirements in LPT applications, and the high-reflection mirror can be equipped with an angle fine-tuning device. To meet the requirements of use, the adjustable high-mirror in the transmission arm can greatly improve the transmission efficiency of the transmission arm to ultraviolet light and meet the needs of presbyopia surgery. In order to be able to conveniently adjust the size and shape of the laser spot emitted by the treatment instrument to adapt to the surgical treatment of presbyopia, a condenser lens group is installed on the branch optical path of the presbyopia to allow the laser to pass through the condenser lens, and by adjusting The focal length of the condensing lens sheet and its distance from the high reflection can easily adjust the size of the laser spot emitted by the treatment instrument. In surgical treatment of presbyopia, the spot size of UV laser is also a key issue. In this operation, the spot size is required to be smaller than LASIK for applications ranging from 1.0 to 25 microns and 0.5 to 1.5 microns. Therefore, the provision of the condensing lens sheet can easily satisfy this use requirement. When performing myopia treatment, the condensing lens sheet and the high-reflection mirror provided on the main optical path or only the high-reflection mirror are moved out of the optical path, so that the laser passes through a pair of the scanning lens groups or also passes the condensing lens sheet To the eyeball being treated. On the optical path, a set of 45-degree high-reflection mirrors and a condenser lens set are arranged, which are placed on a support on the optical path of the laser emitted by the laser, and the support is movably placed on a rack and formed on the support. A transmission arm is disposed on the optical path. 7 M280214 There is also a simpler way to make a laser therapy device suitable for presbyopia and myopia treatment at the same time: set UV 45 on the wheel light path of the myopia therapy device with at least a laser and a pair of χγ scanning lens groups The high-definition mirror and the condenser lens sheet group are provided with the transmission arm on an optical path formed by the high-reflection mirror and the condenser lens sheet group. When treating LASIK, it is performed on the optical path before the added UV 45-degree high-reflection mirror and condenser lens group, and when presbyopia is treated, it is performed on the light exit end of the transmission arm. . The therapeutic device with this structure is the easiest to improve and the effect is better. The laser provided by the new model is a pulsed excimer ultraviolet laser (wavelength 193 nm) or a solid ultraviolet laser (wavelength 211 to 266 nm) with a pulse width of about 3 to 200 nanoseconds (ns). The laser frequency is about 5 to 500 Hz, and the power of the laser ultraviolet light on the surface of the patient's eyeball is about 0.1 to 2.0 watts (watt). The transmission arm uses a 45-degree UV high-reflection mirror to transmit laser energy to the eye. It is a multi-segment movable about 50 to 150 cm long, and uses a 45-degree UV high-reflection mirror. Ultraviolet optical condenser lens group is used in LPT and LASIK, this mode, the spot size of which can be selected (on the surface of the eyeball) are: 05 to L 0 mm and 1.0 to 2.5 mm. The two surgical methods are also different: when using LASIK, the center of the corneal surface is about 6 mm in diameter, while using jjyp, the sclera on the periphery of the cornea is removed symmetrically, with a depth of about 0.4 to 1.4 mm. . However, the device can be easily adjusted by using this device. One device can meet the requirements of two types of surgery. In addition, in the treatment of presbyopia, the use of a transmission arm with a high transmission efficiency on the optical path makes the spot size and laser required for the operation Energy is well satisfied. The condensing lens sheet is a condensing lens sheet group, which is composed of two or more lens groups g, and is a circular lens or an elliptical lens or a combination of the two. The transmission of the bracket of the ultraviolet optical lens group is connected with a mechanical or electric control device to provide a selectable two types of laser spot sizes required for eyeball surface resection of about 0.5 to 1.5 mm and 1.0 to 2.5 mm . The beneficial effect of the new-type ultraviolet laser multi-functional vision therapy instrument is that, in combination with the existing LASIK mechanical structure, a dual-function laser vision therapy instrument can be used for both lamellar keratectomy (LASIK) and laser old Vision therapy (LPT) to obtain economic and technical practical value. This equipment will have great economic and technical integration practical value. The combination of the lens group or the UV 45-degree high-reflection mirror and the transmission arm with the existing cat-type LASIK mechanical structure is used to provide (LASIK) and laser presbyopia ^ (LPT) UV spot sizes on the eyeball surface, Shape and energy requirements. M280214 [Embodiment] The best embodiment: The present invention will be further described with reference to the accompanying drawings. DETAILED DESCRIPTION: Example 1:

如圖1中所示,雷射器1輸出紫外光2,經由設于雷射2 =外光學鏡聚刻組3及4,其制光路上設料向掃瞄鏡5料 向掃瞄鏡6,傳輸雷射能量7到眼球表面8。圖中所示雷射器發出 的為目前被廣泛用在近視治療(LASIK)的193奈米準分子紫外雷 射,或固體糸外雷射,波長211到266奈米,脈沖寬度3到2〇'〇奈秒, 雷射頻率5到500赫茲。紫外光在病人眼球表面功率約〇 〇 瓦。所述固體紫外雷射,波長211到266奈米可經由參汝亞珞· (Nd: YAG)亞佛氧(Nd: YV04)或亞佛(Nd: YLF)之四倍頻或五倍頻產 生。而其紅外基頻(1057到1064奈米)可經由閃燈泵或半導體雷 射泵產生。圖1中所示鏡片組3、4可為圓或橢圓透鏡或兩者的 組合,提供眼球表面所需雷射光斑大小約〇· 5到ι· 〇毫米及1 〇 到2.5毫米,分別使用於1^1'及1^811(兩種模式。光斑選擇可由機 械或電動控制鏡片組3和4。計算器軟件控制掃瞄鏡χγ方向的轉 動’即可達到所需切除圖形及方式:使用為LASIK時,切除角膜 表面中央約6毫米直徑範圍,而LPT則對角膜外圍的鞏膜,备 施對稱狀切除,深度〇· 4到1· 4毫米,其形狀可為直線、曲線、點 圈或其他圖形。 實施例2 : 如圖2所示,雷射器1後面的主光路2上設置紫外光學鏡片組3, 在其後設置一個紫外光45度高反鏡9形成一個支光路,在該支光 路上其後設置鏡片組4及傳輸臂10,傳輸臂10的中空管中與光路 呈45度角且可微調角度地設有至少兩個對紫外光波長〇· a到 〇· 36微米的反射率在98%以上的紫外高反鏡。傳輸雷射能量到眼 球表面8。在主光路上高反鏡9的後面設置X向掃瞄鏡5和Υ向掃瞄 鏡6,傳輸雷射能量7到眼球表面8。 可由機械或電動控制高反鏡9,使高反鏡處於主光路上和離開 主光路’以達到使用為LASIK或LPT兩種模式之選擇。使用為LPT 時,高反鏡處於主光路上,這時支光路形成,傳輸臂10出口功率 約50-500毫瓦,在眼球表面光斑大小〇.5到1· 5毫米。實施例2 M280214 中,傳輸臂10為多節活動式,長約50到150公分,在其中並使 用至少兩個對紫外光波長193奈米高反鏡。傳輸臂出口^率達 75%以上,遠高於使用光纖耦合效率。本實用新型的傳輸臂出口 紫外雷射能量達5到10毫焦(mJ)。這是現有光纖技術,受其低偶 合(傳輸)效率及低抗損之限所達不到的。實施例2切除方式'與實 施例1相同。當使用為LASIK時,將高反鏡9移出主光路即可。' 實施例3 : 如圖3所示,使用現有LASIK機械結構,其中具有雷射器1、聚 透片組3和一對XY掃描鏡片組5和6,發出雷射7,在其出口處另加 紫外45度高反鏡11和12、紫外光學鏡片組4及傳輸臂1〇,傳輸臂 10出口功率50到500毫瓦,以達到用於LPT時在眼球表面8的光 斑大小,其切除方式之要求與實施例1相同。 以上實施例僅為最佳例,其他方式類似本新型所包括之要領及 精神者,均為本新型之專利範圍。 【圖式簡單說明】 圖1為本新型實施例1的雷射治療儀的光路結構示意圓。 圖2為實施例2的雷射治療儀的光路結構示意圖。 圖3為實施例3的雷射治療儀的光路結構示意圖。 【主要元件符號說明】 L雷射器 2·主光路 3,4·紫外光學聚透鏡片組 5· X向掃瞄鏡 6· Y向掃瞄鏡 9·紫外高反鏡 10·傳輸臂As shown in FIG. 1, the laser 1 outputs ultraviolet light 2, and is set on the laser 2 = external optical lens poly-engraving groups 3 and 4, and a material is arranged on the light path to the scanning mirror 5 and the material is to the scanning mirror 6. , Transmitting laser energy 7 to the eyeball surface 8. The laser shown in the figure is a 193 nm excimer UV laser, or solid external radon laser, which is currently widely used in myopia treatment (LASIK), with a wavelength of 211 to 266 nm and a pulse width of 3 to 2. '〇 nanoseconds, laser frequency 5 to 500 Hz. The power of ultraviolet light on the surface of the patient's eyeball is about 0.00 watts. In the solid ultraviolet laser, a wavelength of 211 to 266 nanometers can be generated through the fourth or fifth frequency of Samurai (Nd: YAG) Yafo oxygen (Nd: YV04) or Yafo (Nd: YLF). . The infrared fundamental frequency (1057 to 1064 nm) can be generated by a flash lamp pump or a semiconductor laser pump. The lens groups 3 and 4 shown in FIG. 1 may be round or elliptical lenses or a combination of the two. The laser spot sizes required to provide the surface of the eyeball are about 0.5 to 0.25 mm and 10 to 2.5 mm, respectively. 1 ^ 1 'and 1 ^ 811 (two modes. The spot selection can be controlled mechanically or electrically by lens groups 3 and 4. The calculator software controls the rotation of the scanning lens in the χγ direction' to achieve the required resection pattern and method: use as In LASIK, the center of the corneal surface is removed about 6 mm in diameter, while LPT provides a symmetrical resection of the sclera around the cornea with a depth of 0.4 to 1.4 mm. The shape can be straight, curved, dotted, or other Example 2: As shown in FIG. 2, a UV optical lens group 3 is set on the main optical path 2 behind the laser 1, and a UV light 45-degree high-reflection mirror 9 is set to form a branch optical path. The lens group 4 and the transmission arm 10 are arranged behind the optical path. The hollow tube of the transmission arm 10 is at an angle of 45 degrees to the optical path and can be adjusted at least two pairs of ultraviolet light wavelengths 〇a to 〇36 microns. Ultra-high mirror with reflectivity above 98%. Transmits laser energy to the eye Spherical surface 8. An X-direction scanning mirror 5 and a heading scanning mirror 6 are arranged behind the high-reflection mirror 9 on the main optical path to transmit laser energy 7 to the eyeball surface 8. The high-reflection mirror 9 can be controlled mechanically or electrically to make The high-reflection mirror is on the main optical path and leaves the main optical path 'to achieve the choice of two modes: LASIK or LPT. When it is used as LPT, the high-reflection mirror is on the main optical path. At this time, the branch optical path is formed, and the output power of the transmission arm 10 is about 50. -500 mW, the spot size on the surface of the eyeball is 0.5 to 1.5 mm. In Example 2 M280214, the transmission arm 10 is a multi-section movable type, which is about 50 to 150 cm in length, and uses at least two pairs of ultraviolet rays therein. The light wavelength is 193nm high-reflection mirror. The exit rate of the transmission arm is more than 75%, which is much higher than the coupling efficiency of the fiber. The ultraviolet laser energy of the transmission arm exit of the utility model is 5 to 10 millijoules (mJ). This is Existing optical fiber technology cannot be reached due to its low coupling (transmission) efficiency and low resistance. The cutting method of Example 2 is the same as that of Example 1. When using LASIK, the high mirror 9 is moved out of the main optical path. That's all. 'Example 3: As shown in FIG. 3, the existing LASIK mechanical structure is used, where It has a laser lens 1, a poly lens group 3, and a pair of XY scanning lens groups 5 and 6, and emits a laser 7, and an ultraviolet 45 degree high-reflection mirror 11 and 12, an ultraviolet optical lens group 4 and transmission are added at its exit. The output power of the arm 10 and the transmission arm 10 is 50 to 500 milliwatts in order to reach the spot size on the eyeball surface 8 when used for LPT, and the requirements of the resection method are the same as those in the embodiment 1. The above embodiment is only the best example, and other The methods and spirits included in the method similar to the new model are the patent scope of the new model. [Brief description of the drawings] Figure 1 is a schematic circle of the optical path structure of the laser therapeutic apparatus of Embodiment 1 of the new model. Figure 2 is an embodiment Schematic diagram of the optical path structure of the 2 laser treatment instrument. FIG. 3 is a schematic diagram of a light path structure of the laser therapeutic apparatus of Embodiment 3. FIG. [Description of main component symbols] L laser 2 · Main optical path 3,4 · Ultra-optical lens group 5 · X-direction scanning lens 6 · Y-direction scanning lens 9 · Ultraviolet mirror 10 · Transmission arm

Claims (1)

M280214 九、申請專利範圍: 卜一種紫外雷射多功能視力治療儀,該治療儀將計算機控制的紫外雷 射器輸出,經由一對X、γ掃描鏡及紫外光學聚透鏡片組傳輸其能 量到眼球表面。 2、 如申請專利範圍第1項所述之治療儀,該紫外光學聚透鏡片組之後 另加設一個紫外45度高反鏡,其置於該雷射器發出雷射的光路上的 支架上,該支架可運動地置於機架上,使雷射器發出的雷射可以增 ^一個支光路,在該支光路,再設置一紫外光學聚透鏡片組,在其 後的支光路上還設置一個傳輸臂,該傳輸臂的中空腔體中與光路呈 45度角’且可微調角度,設有至少兩個對紫外光波長約〇 19到〇 26 微米,反射率在98%以上的紫外高反鏡。 3、 如申請專利範圍第2項所述之治療儀,在該光路上設置紫外奶度高 反鏡和紫外光學聚透鏡片組,其置於所述雷射器發出雷射的光路上 的支架上,該絲可魏地置於齡上,在其形成的上設置一 傳輸臂,所述傳輸臂的中空管中與光路呈45度角且可微調角度地設 有至少兩個對紫外光波長〇· 19到〇· 26微米,反射率在98%以上的紫 外高反鏡。 4、如申請專利範圍第1項所述之治療儀,該雷射器為準分子紫外雷射, 米,或固體紫外雷射,波長211到266奈米,脈沖寬度為3 到200不秒,雷射頻率約5到5〇〇赫茲,雷射器紫外光在病人眼球表 面功率為0·1到2.0瓦。 5麵第1項所述之治療儀,該紫外光學聚透鏡片組與機 S電巧,!裝置連接’以提供可獅的眼球表面切除所需兩種雷 5士斑大桃5到1.5毫米及1』到2.5毫米,分別做為1^及1^11( 之用。 6 4·、如專利範圍第2或第3項所述之治療儀,該傳輸臂為多節活動 1鏡所述較少兩鶴反鏡為對料光波長193卿6奈米反射的高 7 ίΐ申明範圍第1、2或第3項所述之治療儀,該紫外光學聚透鏡 么Ϊ的ί:兩組或兩組以上鏡片組成’其為圓形透鏡或_透鏡或 L第治療儀’若使用為老㈣療,其切除 i 除圖形可為對稱性之直線、曲線、點圈或 其他圖形,切除區在眼白區。 M280214 9、如申請專利範圍第4項所述之治療儀,該固體紫外雷射波長從211 到266奈米,可經由參汝亞珞(Nd:YAG)亞佛氧(Nd:YV04)或亞佛 (NchYLF)之四倍頻或五倍頻產生;而其紅外基頻(1057到1064奈米) 可經由閃燈泵或半導體雷射泵產生。M280214 IX. Scope of patent application: A UV laser multi-functional vision therapy device which outputs a computer-controlled UV laser device and transmits its energy to a pair of X, γ scanning mirrors and a UV optical lens assembly. Eyeball surface. 2. According to the treatment device described in item 1 of the scope of the patent application, a UV 45-degree high-reflection mirror is additionally installed after the ultraviolet optical lens group, which is placed on a bracket on the optical path of the laser from the laser The bracket is movably placed on the frame, so that the laser emitted by the laser can increase a branch optical path, and an ultraviolet optical condensing lens group is set on the branch optical path, and the subsequent branch optical path is also A transmission arm is provided. The hollow cavity of the transmission arm is at a 45-degree angle to the optical path, and the angle can be adjusted. There are at least two ultraviolet rays with a wavelength of about 019 to 〇26 microns and a reflectance of more than 98%. High mirror. 3. According to the treatment device described in item 2 of the scope of patent application, an ultraviolet milky high-mirror mirror and an ultraviolet optical condensing lens set are set on the optical path, and the optical path is placed on a bracket on the optical path where the laser emits laser light. In the above, the wire can be placed on the age, and a transmission arm is arranged on the formation of the wire. The hollow tube of the transmission arm is at a 45-degree angle with the optical path and at least two pairs of ultraviolet light can be arranged at a finely adjustable angle. Ultraviolet high-reflection mirror with a wavelength of 1.9 to 0.26 microns and a reflectance of more than 98%. 4. The therapeutic device as described in item 1 of the scope of the patent application, the laser is an excimer ultraviolet laser, a meter, or a solid ultraviolet laser with a wavelength of 211 to 266 nanometers and a pulse width of 3 to 200 seconds. The laser frequency is about 5 to 500 Hz, and the power of the laser ultraviolet light on the surface of the patient's eyeball is 0.1 to 2.0 watts. The treatment device described in item 1 on 5 sides, the ultraviolet optical lens group is electrically connected to the machine S, and the device is connected to provide two kinds of Ray 5 spotted peaches 5 to 1.5 mm and 1 ”to 2.5 mm, which are used for 1 ^ and 1 ^ 11 (respectively. 6 4 ·, as described in the patent scope of the second or third item of the treatment instrument, the transmission arm is a multi-section activity 1 mirror The lesser two crane mirror is a treatment instrument described in item 1, 2, or 3 of the range 193, 6 nanometers, which reflects the light wavelength 193, 6 nanometers. What is the UV optical condenser lens? Two groups or two The lens above the group is composed of 'It is a round lens or a lens or an L treatment device'. If it is used for old medical treatment, its cut-off pattern can be a straight line, curve, dot circle or other figure with symmetry. M280214 9. The treatment device described in item 4 of the scope of patent application, the solid ultraviolet laser has a wavelength of 211 to 266 nanometers, and can be passed through Sanyiyao (Nd: YAG) Yafo oxygen (Nd: YV04) Or the fourth or fifth octave of NchYLF; the infrared fundamental frequency (1057 to 1064 nanometers) can be generated by a flash pump or a semiconductor laser pump.
TW94207773U 2005-05-13 2005-05-13 Multi-function ultraviolet laser for vision correction TWM280214U (en)

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