Catheter for drug injection
专利汇可以提供Catheter for drug injection专利检索，专利查询，专利分析的服务。并且PURPOSE: To prevent the leakage of a stone dissolving agent to the duodenal papilla side by providing an outflow preventive member consisting of a material which is swollen and increased in volume by a billary calcule dissolving agent in a part on the front end side of a catheter body to be located in the cystic duct.
CONSTITUTION: The stone dissolving agent (MTBE) or the bille can be released through the catheter 11 into the gall bladder or can be recovered by the normal or inverse rotation of a pump 14. The front end side part 18 of the catheter 11 has plural holes 19 for releasing or recovering the MTBE or the bille. The material which is swollen by the MTBE, for example, a sealing member 20 consisting of silicone rubber, etc., is fixed to the part positioned to face the cystic duct in tight contact therewith at the time of using the catheter on the side nearer the operator side than the holes 19. There are plural communicating holes 21 in the peripheral wall part of the catheter 11 to be mounted with a sealing member 20. The respective communicating holes 21 introduce the MTBE passing in the catheter 11 to the sealing member 20 to bring the MTBE into partial contact therewith.
COPYRIGHT: (C)1990,JPO&Japio，下面是Catheter for drug injection专利的具体信息内容。
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