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1. 发明申请

US20170135720A1 MEDICAL NEEDLE MANUFACTURING METHOD, MEDICAL NEEDLE MANUFACTURING APPARATUS, AND MEDICAL NEEDLE 审中-公开
公开(公告)号：US20170135720A1
公开(公告)日：2017-05-18
申请号：US15332069
申请日：2016-10-24
申请人： TERUMO KABUSHIKI KAISHA
发明人： Masatoshi OSHIDA , Kenta GOTO , Naoki UCHIDA
IPC分类号： A61B17/34 , B21D51/16
CPC分类号： B21D41/02 , A61M5/343 , A61M2207/00 , A61M2207/10 , B21G1/08
摘要： A medical needle manufacturing method, a medical needle manufacturing apparatus, and a medical needle are disclosed capable of suppressing the generation of a level difference and burrs/flashes in a boundary section between a needle hub and a needle body in an inner peripheral portion of the needle hub. The manufacturing method of a medical needle includes a large-diameter-portion molding step of molding, by a core pin, a large-diameter portion in a proximal portion of a needle body; a core-pin backward-movement step of moving backward the core pin by a predetermined distance relatively to the needle body; and an injection molding step of molding a needle hub by injecting a resin into an injection molding mold.

2. 发明申请

US20150374931A1 METHOD FOR PRODUCING NEEDLE-EQUIPPED OUTER TUBE AND NEEDLE-EQUIPPED OUTER TUBE 审中-公开
标题翻译：用于生产针筒的外管和针管外管的方法
公开(公告)号：US20150374931A1
公开(公告)日：2015-12-31
申请号：US14846597
申请日：2015-09-04
申请人： Terumo Kabushiki Kaisha
发明人： Tsutomu SUGIKI , Masaaki KASAI , Kozo MATSUMOTO , Kenta GOTO
IPC分类号： A61M5/34
CPC分类号： A61M5/343 , A61M5/28 , A61M5/3134 , A61M5/34 , A61M2005/3118
摘要： A method of manufacturing a needle-equipped outer tube includes a preheating step comprising heating a distal end connecting section to a temperature at or below a softening point of a material forming an outer tube member with a joint member inserted in a distal end connecting section of the outer tube member, and with a needle being inserted or inserted and fixed in the needle insertion hole; and a joint member welding step, performed after the preheating step, comprising thermally welding the joint member to the distal end connecting section of the outer tube member with a distal end portion of the joint member pressed toward the proximal end of the joint member by a pushing member with a pressing force in a range of 4 N to 30 N.
摘要翻译：制造装有针的外管的方法包括预热步骤，包括将远端连接部加热到形成外管构件的材料的软化点处的或低于软化点的温度，其中接合构件插入到远端连接部分外管构件，并且针插入或插入并固定在针插入孔中; 以及在预热步骤之后进行的接合构件焊接步骤，包括将接头构件热焊接到外管构件的远端连接部分，其中接头构件的远端部分朝向接头构件的近端压靠一个按压力在4N至30N的范围内。

3. 发明申请

US20190167912A1 METHOD FOR PRODUCING NEEDLE-EQUIPPED OUTER TUBE AND NEEDLE-EQUIPPED OUTER TUBE 审中-公开
公开(公告)号：US20190167912A1
公开(公告)日：2019-06-06
申请号：US16269193
申请日：2019-02-06
申请人： TERUMO KABUSHIKI KAISHA
发明人： Tsutomu SUGIKI , Masaaki KASAI , Kozo MATSUMOTO , Kenta GOTO
IPC分类号： A61M5/34 , A61M5/31 , A61M5/28
摘要： A method of manufacturing a needle-equipped outer tube includes a preheating step comprising heating a distal end connecting section to a temperature at or below a softening point of a material forming an outer tube member with a joint member inserted in a distal end connecting section of the outer tube member, and with a needle being inserted or inserted and fixed in the needle insertion hole; and a joint member welding step, performed after the preheating step, comprising thermally welding the joint member to the distal end connecting section of the outer tube member with a distal end portion of the joint member pressed toward the proximal end of the joint member by a pushing member with a pressing force in a range of 4 N to 30 N.

4. 发明申请

US20160051774A1 OUTER CYLINDER WITH NEEDLE AND METHOD FOR PRODUCING SAME 审中-公开
标题翻译：带针筒的外筒及其制造方法
公开(公告)号：US20160051774A1
公开(公告)日：2016-02-25
申请号：US14930035
申请日：2015-11-02
申请人： TERUMO KABUSHIKI KAISHA
发明人： Tsutomu SUGIKI , Kenta GOTO
IPC分类号： A61M5/34 , B23K26/20 , B29C65/36 , B29C65/14 , B29C65/34 , B23K26/324 , B23K13/01
摘要： A method of producing a needle-mounted outer cylinder involves a melt-bond process of melting and bonding a proximal portion of a needle tube to an outer cylinder in a state in which the needle tube is in a needle insertion hole of the outer cylinder and in a state in which the outer cylinder is erect. The melt-bond process is performed by imparting energy to a portion of the needle tube distal from a proximal end of the needle insertion hole and from a proximal end of the needle tube causing the needle tube to generate heat so that resin forming an inner surface of the needle insertion hole melts and thereafter by causing the melted resin to flow downward inside the needle insertion hole to thereby fill a gap between an outer surface of the proximal portion of the needle tube and the needle insertion hole.
摘要翻译：针安装的外筒的制造方法涉及在针筒位于外筒的针插入孔的状态下熔融粘合针管的近端部分到外筒的熔接工艺，以及在外筒直立的状态下。熔融粘合工艺通过将能量施加到远离针插入孔的近端的针管的一部分并且从针管的近端施加能量，使得针管产生热量，使得形成内表面的树脂针插入孔熔化后，使熔融树脂在针插入孔内向下流动，从而填充针管的基端部的外表面与针插入孔之间的间隙。

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