发明名称 |
Catheter assemblies and inner cannulae |
摘要 |
A cannula preferably a tracheostomy tube assembly, has an outer catheter 1 and an inner cannula 2 that is removable from the outer catheter. The inner cannula 2 has two elongate regions 20 and 21 along its length of different flexibility. The main body 20 of the cannula 2 may be relatively stiff and a narrow region 21 along its length be of a more flexible material. Alternatively, the main body may be flexible and a narrow region of the wall thickness or a rib may be constructed of relatively stiffer material. Flexibility may also be provided by weakening the tube in a continuous elongate section or by means of corrugations. |
申请公布号 |
GB9824205(D0) |
申请公布日期 |
1998.12.30 |
申请号 |
GB19980024205 |
申请日期 |
1998.11.04 |
申请人 |
SMITHS INDUSTRIES PUBLIC LIMITED COMPANY |
发明人 |
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分类号 |
A61M16/04;A61M25/00;A61M25/01 |
主分类号 |
A61M16/04 |
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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