| 摘要 |
An improved method and apparatus for effecting mid-stream sampling of catheterized flow of liquid from a body cavity is effected through use of an improved coupling between sections of catheter tube means. The improved coupling includes a tubular cross-member that provides two pairs of oppositely extending tubular arms, a first pair of arms adapted to connect to the portions of the catheter tube means, and with a valve member constructed and arranged for selective reciprocal movement in the other pair of tubular arms and so as to permit usual drainage in one position or to provide, in said second position, means for effecting diversion of flow for effecting mid-stream sampling without separating portions of the catheter system that might permit contamination. In the second position, the constructions permit of effecting a backflow flushing of the body cavity, or application of medication, or an instrument, through the improved coupling into the body cavity. Means are provided to maintain the valve member in desired alignment with the cross-member.
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