发明名称 |
APPARATUS AND METHOD FOR PLASMA TREATMENT OF SMALL DIAMETER TUBES |
摘要 |
An apparatus for generating a plasma in the lumen of a small diameter tube includes a housing (12) having a diaphragm (18) which separates the housing into a first chamber (14) equipped with a gas inbleed (26) assembly and a second chamber (16) connected to a vacuum source. Parallel plate electrodes (58) in the first chamber are encased in a dielectric (42) which prevents substantially all plasma discharge external of a plasma zone between the electrodes. A conduit (64) maintains gas flow between the chambers. A bore (52) through the dielectric includes the plasma zone and receives the tube (54) to be plasma treated. A method for treating the luminal wall of a plastic tube (54) includes positioning a tube in the plasma zone, evacuating the chambers, bleeding a gas into the chambers, and delivering radiofrequency power to the electrodes (58). A long tube may be drawn through the plasma zone, or the dielectric and electrodes may be moved past the tube. |
申请公布号 |
AU3598489(A) |
申请公布日期 |
1990.01.04 |
申请号 |
AU19890035984 |
申请日期 |
1989.06.02 |
申请人 |
BECTON, DICKINSON AND COMPANY |
发明人 |
DAVID B. MONTGOMERY;JOEL L. WILLIAMS |
分类号 |
A61L33/00;A61F2/06;C08J7/00;C23C16/04;C23C16/509 |
主分类号 |
A61L33/00 |
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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