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1. 外观设计

USD686322S1 Gasket for syringe 有权
标题翻译：注射器垫片
公开(公告)号：USD686322S1
公开(公告)日：2013-07-16
申请号：US29437498
申请日：2012-11-16
申请人： Sumitomo Rubber Industries, Ltd.
设计人： Katsushi Maeda , Eiji Yao , Shinya Iwano

2. 发明授权

US09452264B2 Mold for gasket for prefilled syringe 有权
标题翻译：预填充注射器垫片模具
公开(公告)号：US09452264B2
公开(公告)日：2016-09-27
申请号：US14244602
申请日：2014-04-03
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Katsushi Maeda , Junji Tashiro , Hiroaki Nakano , Eiji Yao
IPC分类号： A61M5/315 , B29C33/42 , B29C43/18 , B29C33/38 , B29C70/68 , B29L31/00
CPC分类号： A61M5/31513 , A61M5/31511 , A61M2207/10 , B29C33/3842 , B29C33/42 , B29C43/184 , B29C70/68 , B29L2031/7544
摘要： A pre-filled syringe with excellent air-tightness and liquid-tightness and a mold for forming the gasket are provided. At least a surface of the mold for a gasket laminated with an inactive film for a pre-filled syringe forms a seal sliding surface of an annular protrusion of the gasket is mirror finished to have an arithmetic mean roughness Ra of less than 0.03 μm.
摘要翻译：提供了一种具有优异的气密性和液密性的预填充注射器和用于形成垫圈的模具。用于填充注射器的非活性膜层叠的垫圈的模具的至少一个表面形成垫圈的环形突起的密封滑动表面被镜面加工成具有小于0.03μm的算术平均粗糙度Ra。

3. 发明授权

US10099821B2 Method for manufacturing a medical rubber closure 有权
公开(公告)号：US10099821B2
公开(公告)日：2018-10-16
申请号：US14854259
申请日：2015-09-15
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Yoshikazu Masuyama , Katsushi Maeda
IPC分类号： B29C43/18 , B65D39/00 , B65D51/00 , B29C43/02 , B29K23/00 , B29K9/00 , B29L9/00 , B29L31/56 , B29L31/00 , B29K7/00
摘要： A medical rubber closure according to the present invention includes a disc-shaped flange portion and a leg portion formed to be continuous to a lower surface side of the flange portion, and a region at the lower surface side of the flange portion and the leg portion are made of a nitrile based rubber, a region at a top surface side of the flange portion is made of a butyl based rubber, and the leg portion is laminated with a coating layer made of a fluorine based resin film.

4. 发明授权

US09867946B2 Gasket for pre-filled syringe 有权
公开(公告)号：US09867946B2
公开(公告)日：2018-01-16
申请号：US14194888
申请日：2014-03-03
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Shinya Iwano , Katsushi Maeda
IPC分类号： A61M5/315 , A61L31/08 , A61L31/10
CPC分类号： A61M5/31513 , A61L31/084 , A61L31/10 , A61M2205/0222 , A61M2205/0238 , A61M2207/10
摘要： The present invention aims to provide a pre-filled syringe coated with a resin film capable of reducing sliding resistance and preventing liquid leakage by a simple method. The present invention relates to a gasket for a pre-filled syringe, which has a sliding side surface that is coated with an inactive resin film and further cut to form a cut. The cut region is preferably between ring-shaped ribs on the sliding side surface, or in a ring-shaped rib on the sliding side surface.

5. 发明授权

US09724476B2 Medical rubber parts 有权
公开(公告)号：US09724476B2
公开(公告)日：2017-08-08
申请号：US14469656
申请日：2014-08-27
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Katsushi Maeda , Yoshikazu Masuyama
IPC分类号： A61M5/315 , A61J1/06 , A61J1/14 , B29C43/20 , B29C43/14 , B65D39/00 , B29L9/00 , B29L31/26 , B29L31/00 , B29K23/00 , B29K105/24 , B29K105/00
CPC分类号： A61M5/31513 , A61J1/065 , A61J1/1412 , A61M2205/02 , A61M2207/00 , B29C43/145 , B29C43/203 , B29K2023/22 , B29K2105/0032 , B29K2105/246 , B29K2995/0056 , B29L2009/00 , B29L2031/265 , B29L2031/7544 , B65D39/0052 , Y10T428/31924
摘要： The present invention provides, medical rubber parts that do not physically and chemically affect the quality of preparations. The present invention relates to a medical rubber part obtained by press-molding an unvulcanized rubber mainly containing a rubber for forming a liquid-contacting portion and an unvulcanized rubber mainly containing a butyl-based rubber for forming a non-liquid-contacting portion, wherein a color difference dE between the liquid-contacting portion and the non-liquid-contacting portion is 6.0 or more in NBS units.

6. 发明授权

US08960685B2 Laminated gasket 有权
标题翻译：层压垫片
公开(公告)号：US08960685B2
公开(公告)日：2015-02-24
申请号：US14013798
申请日：2013-08-29
申请人： Sumitomo Rubber Industries, Ltd.
发明人： Katsushi Maeda , Eiji Yao
IPC分类号： F16J15/02 , A61M5/315
CPC分类号： F16J15/02 , A61M5/31511 , A61M5/31513 , A61M2205/0222 , A61M2205/0238
摘要： The present invention provides a gasket for glass or resin syringes which is laminated with an inert resin film and is excellent in plugging properties, liquid-tightness, and slidability. The gasket laminated with an inert resin film has multiple circular ribs that are to be in sliding contact with an inner wall of a syringe barrel, wherein the circular ribs include a front circular rib having a sliding contact portion whose cross section has a diameter that expands substantially linearly toward a back end of the syringe barrel, the linear portion has a length of 10 to 55% of the length of a sliding side face of the gasket, and the diameter of the linear portion which expands substantially linearly toward a back end of the syringe barrel has a diameter expansion ratio X between a minimum diameter r (mm) and a maximum diameter R (mm) of 0.1 to 8.0%.
摘要翻译：本发明提供一种玻璃或树脂注射器的衬垫，其与惰性树脂膜层合，并且具有优异的堵塞性，液密性和滑动性。层叠有惰性树脂膜的垫圈具有与注射器筒的内壁滑动接触的多个圆形肋，其中，所述圆形肋包括具有滑动接触部的前部圆形肋，所述滑动接触部的横截面具有膨胀的直径基本上线性地朝向注射器筒的后端，直线部分具有垫片的滑动侧面的长度的10至55％的长度，并且直线部分的直径朝向后端延伸注射器筒的最小直径r（mm）和最大直径R（mm）之间的直径膨胀比X为0.1〜8.0％。

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