发明名称 |
A METHOD FOR CHEMICAL ETCHING OF A NEEDLE CANNULA |
摘要 |
A regular metallic, cylindrical tubular needle cannula (1) is subjected to a metal etching liquid (21) in the inside lumen (4) thereby increasing the inside diameter and enhancing the flow properties while maintaining the outside appearance. The inside diameter is only increased over a controlled length (7) of the full length of the needle cannula (1) leaving sufficient length and wall thickness to also taper the outside diameter. |
申请公布号 |
EP2480146(A1) |
申请公布日期 |
2012.08.01 |
申请号 |
EP20100754348 |
申请日期 |
2010.09.20 |
申请人 |
NOVO NORDISK A/S |
发明人 |
LARSEN, ANDRE;CHRISTOFFERSEN, LASSE, WENGEL;ANDERSEN, MIKAEL;PREUTHUN, JAN, HARALD |
分类号 |
A61B17/34;A61M5/32;B21G1/00;B21G1/08;C23F1/02 |
主分类号 |
A61B17/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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