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公开(公告)号：US5674284A
公开(公告)日：1997-10-07
申请号：US605454
申请日：1996-02-26
CPC分类号： B29D11/023 , B29C43/02 , A61F2002/1683 , B29C2793/009 , B29C43/00 , B29K2033/12 , B29K2105/255 , B29K2995/0053 , B29K2995/0064 , B29L2011/0016 , Y10S425/808
摘要： The polymethyl methacrylate (PMMA) or copolymer thereof used to produce one-piece intraocular lenses is modified by a compression molding process to produce a much tougher material with improved mechanical properties. The process takes material in rod form and compresses into lens blanks. The molded lens blanks receive little or no compression strain in the center 4 mm optic zone. The compression is limited to the periphery region outside the center 4 mm zone. The intraocular lens fabricated from the molded lens blank exhibits greatly increased haptic mechanical properties and resistance to breakage.
摘要翻译： 用于制造单件眼内透镜的聚甲基丙烯酸甲酯（PMMA）或其共聚物通过压缩模塑方法进行改性，以产生具有改善的机械性能的更坚韧的材料。 该过程采用棒状材料并压缩成镜片坯料。 模制的透镜毛坯在中心4 mm光学区域几乎没有受到压缩应变。 压缩限制在中心4 mm区域外的周边区域。 由模制的透镜毛坯制造的眼内透镜显示出大大增加的触觉机械性能和抗断裂性。
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公开(公告)号：US5895610A
公开(公告)日：1999-04-20
申请号：US940676
申请日：1997-09-30
CPC分类号： B29D11/023 , B29C43/02 , A61F2002/1683 , B29C2793/009 , B29C43/00 , B29K2033/12 , B29K2105/255 , B29K2995/0053 , B29K2995/0064 , B29L2011/0016 , Y10S425/808
摘要： The polymethyl methacrylate (PMMA) or copolymer thereof used to produce one-piece intraocular lenses is modified by a compression molding process to produce a much tougher material with improved mechanical properties. The process takes material in rod form and compresses into lens blanks. The molded lens blanks receive little or no compression strain in the center 4 mm optic zone. The compression is limited to the periphery region outside the center 4 mm zone. The intraocular lens fabricated from the molded lens blank exhibits greatly increased haptic mechanical properties and resistance to breakage.
摘要翻译： 用于制造单件眼内透镜的聚甲基丙烯酸甲酯（PMMA）或其共聚物通过压缩模塑方法进行改性，以产生具有改善的机械性能的更坚韧的材料。 该过程采用棒状材料并压缩成镜片坯料。 模制的透镜毛坯在中心4 mm光学区域几乎没有受到压缩应变。 压缩限制在中心4 mm区域外的周边区域。 由模制的透镜毛坯制造的眼内透镜显示出大大增加的触觉机械性能和抗断裂性。
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公开(公告)号：US4815218A
公开(公告)日：1989-03-28
申请号：US72912
申请日：1987-07-14
申请人： Walker L. Gordy
发明人： Walker L. Gordy
CPC分类号： A61B17/32093 , A61F9/0133
摘要： A surgical scalpel having an extendable blade, said blade being extended by rotating a movable portion of a barrel with respect to a fixed barrel portion, the initial extension being done at a fast rate and the final extension or depth adjustment being done at a slow rate. Additionally, the invention includes a gauge in combination with the scalpel for calibrating blade depth, the gauge consisting of a base, a slidable block with a tapered ridge and width markings and a slidable support for the scalpel, so that the scalpel can be abutted with the block for measurement and backed off for block adjustment.
摘要翻译： 具有可延伸刀片的外科手术刀，所述刀片通过相对于固定镜筒部分旋转镜筒的可移动部分而延伸，初始延伸以快速速度完成，并且最终延伸或深度调节以较慢的速度进行 。 另外，本发明还包括与用于校准刀片深度的解剖刀组合的计量器，由基座，具有锥形脊的可滑动块和宽度标记组成的规格以及用于解剖刀的可滑动支撑，使得解剖刀可以与 用于测量的块，并用于块调整。
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公开(公告)号：US4730613A
公开(公告)日：1988-03-15
申请号：US873951
申请日：1986-06-13
申请人： Walker L. Gordy
发明人： Walker L. Gordy
IPC分类号： A61B17/3211 , A61B17/32 , A61F9/013
CPC分类号： A61B17/32093 , A61F9/0133
摘要： A surgical scalpel having an extendable blade, said blade being extended by rotating a movable portion of a barrel with respect to a fixed barrel portion, the initial extension being done at a fast rate and the final extension or depth adjustment being done at a slow rate. Additionally, the invention includes a gauge in combination with the scalpel for calibrating blade depth, the gauge consisting of a base, a slidable block with a tapered ridge and width markings and a slidable support for the scalpel, so that the scalpel can be abutted with the block for measurement and backed off for block adjustment.
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