专利名称：Catheter tunneler
发明人：Kenneth Chesnin
申请号：US11809163
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申请日：20070531
公开号：US20070282274A1
雅思口语预测公开日：trucker>could this be love
20071206
专利内容由知识产权出版社提供
glassfiber专利附图：
摘要：A tunneler () having a shaft () with an advancement end () and a connection end portion () having a lumen inrtion tip () that may define a locating pin. At least one lumen-gripping ction () is defined on the connection end portion spaced from the lumen inrtion tip (). The lumen-gripping ction may be a barb ction having at least one discrete barb () with a sharp lumen-biting edge and a tapered lead-in surface ()专八成绩
extending from the sharp edge toward the locating pin. The barb ction () may have one discrete barb, or it may have an array of discrete barbs () dispod equiangularly around the circumference of the connection end portion, with interbarb surfaces () that may be flat or fluted. The barb ction () may be mi-cylindrical in cross-ction for u with
catheter lumens that are mi-cylindrical or D-shaped. Also, the lumen-gripping ction ()may be an annulus having a rounded lumen-engaging surface, or may be a circumferential
complimentary
array of nubs having rounded lumen-engaging surfaces. The connection end portion may have a plurality of axially spaced lumen-gripping ctions () that may have the same diameters or different maximum dimensions for u with a range of sizes of catheter lumens.
woman申请人：Kenneth Chesnin
地址：Philadelphia PA US
undercretary国籍：US
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