TWI351270B - Lens delivery system - Google Patents
Lens delivery system Download PDFInfo
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- TWI351270B TWI351270B TW097102512A TW97102512A TWI351270B TW I351270 B TWI351270 B TW I351270B TW 097102512 A TW097102512 A TW 097102512A TW 97102512 A TW97102512 A TW 97102512A TW I351270 B TWI351270 B TW I351270B
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- crystal
- plunger
- plunger rod
- sliding block
- delivery system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2/1662—Instruments for inserting intraocular lenses into the eye
- A61F2/1678—Instruments for inserting intraocular lenses into the eye with a separate cartridge or other lens setting part for storage of a lens, e.g. preloadable for shipping
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2/1662—Instruments for inserting intraocular lenses into the eye
- A61F2/167—Instruments for inserting intraocular lenses into the eye with pushable plungers
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- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Fluid-Damping Devices (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Surgical Instruments (AREA)
Description
第97102512號專利申請案說明書暨申請專利範圍修正本 修正曰期:1〇〇年06月21日 九、發明說明: 發明領域 本發明是關於人工水晶體(intraocular lenses,IOLs), 尤其是關於用以將人工水晶體注入眼睛之裝置。 發明背景 人類眼睛最簡單的功能是透過一稱作角膜的透明外部 來傳輸和折射光線,且進一步經由水晶體將影像聚焦於眼 睛背後的視網膜上而提供視力。聚焦影像的品質取決於很 多因素,包括眼睛尺寸、形狀和長度及該角膜和水晶體之 形狀和透明度。 當外傷、年齡或疾病導致該水晶體變成較不透明時, 視力會惡化蓋因被傳輸至視網膜的光被削減。此眼睛水晶 體内的缺陷’醫學上稱為白内障。對此病狀的治療是進行 外科手術摘除該水晶體且植人—人工晶體⑽ifkial i㈣或 I0L。 — 雖早期人工水晶體係由硬塑膠,例如:聚甲基丙稀酸甲 醋(PMMA),製成,而軟式可折㈣人工水晶體係由頻脂 製成’軟式丙稀酸聚合物和水凝膠係逐漸變的普遍,蓋因 可折疊或轉動此等軟水晶_將其經由—較小切⑽入。 幾種轉動或折4該水晶_方法被。—普遍方法為一 注射H ’其可折疊水晶體和提供—相對小直徑的内腔透 過此内腔,該水晶體可被推⑽睛内,其通常係藉由一軟 1351270 第97102512號專利申請案說明書暨申請專利範团修正本 修正曰期:100年06月21曰 尖柱塞(soft tip plunger)。一種最普遍使用的注射匣設計係 在美國專利案第4681102 (Bartell)號中所描述,該注射匣設 計包括一裂縫(split)和一縱鍵 g (longitudinally hinged cartridges)。最近另一提出的可拋棄式水晶體輸送系統係在 5 美國專利案第7156854 B2(Brown,et al.)號中被揭露。其他 匣之設計顯示在美國專利案第5494484、5499987 (卩6心〇1(1)、5616148和5620450 (丑&旦168々31_)號。為了避開 美國專利案第4681102號之專利範圍,許多固體式匣已被研 究’參見例如美國專利案第5275604 (Rheinish, et al.)和 l〇 5653715 (Reich, et al.)號。 從一匣將一水晶體擠押出且無損壞之能力係取決於水 晶體之設計和材質。石夕樹脂水晶體是由一相對粗經且耐久 材質所做成’並能更強勁地(aggressively)壓縮。水含量高 的水凝膠材質較易脆,且必須更小心地折疊。軟式丙稀酸 15聚合物本質上具有黏彈性,且對溫度有高敏感性,若太冷 則易碎,太熱則無法使用。當軟式丙烯酸聚合物在適當的 溫度下塵縮,可被描述為r流動」而不是折疊。基於此理 由,軟式丙烯酸聚合物最好被緩慢地以一非常受控的方式 壓縮。 20 適合用於軟式丙烯酸聚合物人工水晶體的習知水晶體 輸送手持件(handpiece) —般具有帶有祚常長之柱塞桿的柱 塞。該些手持件的長抽(long stroke)會造成水晶體更緩慢地 被折疊,因該水晶體被推擠於該折疊匣之相當長的長度。 當較佳切口尺寸較小時,匣之喷嘴的直徑也變小,而迫使 6 1351270 第97102512號專利申請案說明書暨申諳專利範圍修正本 修正曰期:1〇〇年06月21日 該水晶體較過去被壓縮地更為緊密。推擠該水晶體至該匣 之噴嘴處所需的力量相對地增加。此增加的力量施於柱塞 桿,會導致該柱塞桿變形或彎曲。 因此,對用以幫助在使用時防止一水晶體輸送手持件 5柱塞桿之彎曲或變形之裝置的需求係持續存在。 【發^明内容^】 發明概要 本發明藉著提供具有-有-滑動塊加強構件的柱塞桿 之水晶體輪送系統來改善習知技術。該滑動塊係在該柱塞 Π)桿上沿著該柱塞桿運行,且幫助加強該柱塞桿對抗在使用 時的彎曲或變形。 因此,本發明的目標在於提供-水晶體輸送系統,而 其適合用以折疊由一軟式丙稀酸聚合物材質所製成的水晶 體。 滑動塊的水晶 本發明的進一步目標在於提供—具有 體輸送系統。 /發明的進-步目標在於提供m置用以幫助 抵抗柱塞桿彎曲或變形的一水晶體輸送系統。 其它本發明的目標、特徵及優點將參照圖式及下列圖 20式及申請專利範圍之載述而變得明顯。 圖式簡單說明 第^圖疋本發明水晶體輸送手持件或系統末梢端的居部放 大透視圖。 第2圖是安裳於本發明水晶體輸送手持件或系統上之滑動 7 第97102512號專利申請案說明書皆申請專利範圍修正本修正日期:100年〇6月21日 塊的局部放大透視圖。 第3圖是本發明滑動塊的局部放大透視圖。 第4圖是本發明安裝於柱塞桿上的滑動塊的放大側立視圖。 第5圖是本發明安裝於柱塞桿上的滑動塊的放大頂視圖。 第6圖是本發明水晶體輸送系統的頂視圖。, C實施方式;j 較佳實施例之詳細說明 如第1圖和第6圖之最佳所示,本發明的水晶體輸送系 統10包括匣12和手持件14。如第丨圖最佳所示,匣12—般含 有管狀體16和注射喷嘴18。匣12係由任何適合之熱塑性材 質,例如聚丙烯,被模鑄為單件,且該熱塑性材質可含有 一滑潤加強劑,如美國專利案第5716364所揭露者,該專利 案的整個内容係併入於此以作為參考。任擇地,匣12可和 手持件14一體成形。較佳地,喷嘴18之戴面為圓形、卵形 或橢圓狀,且截面積為約l 〇mm2至約2 6mm2之間。匣12含 有用以接收要被折疊之水晶體22的腔體2〇。水晶體22係以 此技藝中所熟知之方式藉由柱塞桿24從腔體2〇推擠出並進 入喷嘴1卜 如第3、4和5圖之最佳所示,可和本發明之水晶體輸送 系統一起使用的滑動塊26 —般由具有通道或溝槽3〇之延長 之體部28和驅動鈕32所組成。溝槽3〇按尺寸和形狀製作以 安裝於柱塞桿24上方並在其上賴。柱塞糾是附接於柱 塞25並從柱塞25末梢延伸出,並具有止心34(detent)可接 合在溝槽30内部的銷子36(pin),而使滑動塊26於匣12之狹 第97102512號專利申請案說明書暨申請專利範圍修正本 修正日期:1〇〇年 長口(slot)27内的移動也會造成柱塞桿24和柱塞25的移動 如將於下描述者。 在使用上’柱塞25係被向近端拉動(遠離嘴嘴^方 向)’而使柱塞桿24和滑動塊26縮回在手持件14内部並露 腔體20,而使水晶體22可放置在該腔體20中,如第丨、 2和6 圖所示。藉由推動驅動鈕32將滑動塊26向末梢推進到— J 一多 數、預先測量之所欲距離(第2圖之刻度標號卜2和3)之— 者。滑動塊26的移動也會造成柱塞桿24移動,蓋因止回爪 34和銷子36的連扣配置。當滑動塊26向末梢推進,—連串 的階段性止回爪擋35會提供做為使用者在水晶體輸送過程 中特定階段的指示。滑動塊26可接續地向末梢推進直到驅 動鈕32到達狹長口 27的末梢端37,藉此防止滑動塊26進一 步地移動,如第1圖所示。柱塞桿24進一步移動的完成是藉 由按壓柱塞25之末端帽39,此會造成柱塞桿24克服該止回 爪34及銷子36的扣持力’以推水晶體22出腔體2〇末梢,經 過匣12及離開喷嘴18。在柱塞桿24的此進一步移動過程 中’滑動塊26的體部28作動如同加固物(stiffener),幫助減 少柱塞桿24的彎曲及變形。 雖本發明之某些具體例已被描述於上,該等描述係為 例示及闡明之目的而提供。上述所揭系統及方法的變異、 變化、修改及偏移可被採用而不背離本發明之範疇或精神。 【圖式簡單說明;j 第1圖是本發明水晶體輸送手持件或系統末梢端的局 部放大透視圖。 1351270 第97102512號專利申請案說明書暨申請專利範®修正本 修正曰期:100年06月21曰 第2圖是安裝於本發明水晶體輸送手持件或系統上之 滑動塊的局部放大透視圖。 第3圖是本發明滑動塊的局部放大透視圖。 第4圖是本發明安裝於柱塞桿上的滑動塊的放大側立 5 視圖。 第5圖是本發明安裝於柱塞桿上的滑動塊的放大頂視 圖。 第6圖是本發明水晶體輸送系統的頂視圖。 【主要元件符號說明】 10水晶體輸送系統 27狹長口 12匣 28體部 14手持件 30 16管狀體 32驅動鈕 18喷嘴 34止回爪 20腔體 35止回爪擒 22水晶體 36銷子 24柱雜 37末梢端 25柱塞 39末端帽 26滑動塊 10
Claims (1)
- 第97102512號專利申請案說明書登申請專利範圍修正本修正日期:100年〇6月日 十、申請專利範圍: L 一種人工水晶體輸送系統包含: 一包含一狹長口之匣; 一耦合於該匣之管狀手持件; 一包含一柱塞桿之柱塞,該柱塞被構形以往復運動於該 、手持件内,而能自該手持件推擠一經摺疊的水晶體; 其特徵在於, 八有一溝槽之滑動塊,該溝槽被構形以安裝於該柱塞 桿上方; 其中,該滑動塊於該匣之狹長口中的向前移動亦造 成該柱塞捍及柱塞的移動; "中,β玄滑動塊被構形成能被推擠向前直至該滑動 塊上之-蝴達該狹長末梢端,該末梢端被構形 以限制該滑動塊的移動; 其中,於該滑動塊到達該狹長口的末梢端後,該柱 塞桿進一步向前的移動是藉由按壓該柱塞上之一末端 帽而被完成; ,、中,於餘塞桿進-步移動的_,料動塊作 動如同一加固物以減少該柱塞桿的彎曲及變形。 如申請專利範圍第1項之水晶體輸送系統,其中該匿包 含—腔體用以接收一要被輸送之未經摺疊之水晶°體。 如申請專利範圍第2項之水晶體輸送系統,其中該柱塞 桿及該滑動塊溝槽包含相應之止回爪與鎖子使得㈣ 動塊移動造成餘塞桿移動,該柱塞桿移_所需用^ 2. 1351270 第97102512號專利申請案說明書暨申請專利範圍修正本 修正日期:1〇〇早〇6月21曰 輸送該水晶體之該柱塞桿移動之至少一部分。 4.如申請專利範圍第1項之水晶體輸送系統,其中該潰動 塊被構形以於該滑動塊被向末梢推進時,接合一連串的階 段性止回擔。 5 5.如申請專利範圍第1項之水晶體輪送系統,其中该潰動 塊是摩擦地和該柱塞桿接合以使該滑動塊的移動造成該拉 塞桿的移動。 6.如申請專利範圍第丨項之水晶體輸送系統,其中該狭長 口的該末梢端無限制該柱塞桿的移動。 1〇 7.如申請專利範圍第1項之水晶體輸送系統,其中該柱塞 才干被構形以被向近端拉動而遠離一喷嘴使得該柱塞桿及 该滑動塊縮回在手持件内部以露出一腔體,而使一水晶體 可被放置在該腔體中。 8·如申凊專利範圍第}項之水晶體輸送系統,其中該滑動 15 2被構形以藉由㈣歸動塊上之⑭,而被向末梢推進到 夕數預先測量之由刻度標號所示之所欲距離之—者。 12 1351270 第97102512號專利申請案說明書暨申請專利範圍修正本 修正日期:100年06月21曰 七、指定代表圖: (一) 本案指定代表圖為:第(1 )圖。 (二) 本代表圖之元件符號簡單說明: 10水晶體輸送系統 12匣 14手持件 16管狀體 18喷嘴 20腔體 22水晶體 24柱塞桿 28體部 32驅動鈕 八、本案若有化學式時,請揭示最能顯示發明特徵的化學式:
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US11/675,380 US9522061B2 (en) | 2007-02-15 | 2007-02-15 | Lens delivery system |
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TW200841868A TW200841868A (en) | 2008-11-01 |
TWI351270B true TWI351270B (en) | 2011-11-01 |
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TW097102512A TWI351270B (en) | 2007-02-15 | 2008-01-23 | Lens delivery system |
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US (1) | US9522061B2 (zh) |
EP (2) | EP2062552B1 (zh) |
JP (1) | JP4546549B2 (zh) |
KR (1) | KR100966199B1 (zh) |
CN (1) | CN101243996B (zh) |
AR (1) | AR065236A1 (zh) |
AT (2) | ATE427720T1 (zh) |
AU (1) | AU2008200345B2 (zh) |
BR (1) | BRPI0800187B8 (zh) |
CA (1) | CA2618528C (zh) |
DE (1) | DE602008000004D1 (zh) |
ES (2) | ES2323739T3 (zh) |
IL (1) | IL189035A (zh) |
MX (2) | MX338315B (zh) |
RU (2) | RU2380070C2 (zh) |
TW (1) | TWI351270B (zh) |
Families Citing this family (43)
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US8460375B2 (en) * | 2006-08-14 | 2013-06-11 | Novartis Ag | Lens delivery system |
US9522061B2 (en) | 2007-02-15 | 2016-12-20 | Novartis Ag | Lens delivery system |
US20080255577A1 (en) * | 2007-04-11 | 2008-10-16 | Downer David A | Lens Delivery System Cartridge and Method of Manufacture |
NZ586950A (en) | 2008-02-07 | 2013-01-25 | Alcon Inc | Intraocular lens delivery system cartridge with a tubular nozzle |
JP5301937B2 (ja) * | 2008-09-30 | 2013-09-25 | 株式会社ニデック | 眼内レンズ挿入器具 |
US20100087832A1 (en) * | 2008-10-03 | 2010-04-08 | Seyboth William J | Intraocular lens injector |
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