Patent attributes
A medical instrument system includes an imaging probe and an elongated medical instrument. The imaging probe includes a first sealing feature comprising a first tapered profile formed on an external surface of the distal tip. The elongated medical instrument has a working channel extending to an opening in the distal portion. The distal portion includes a second sealing feature comprising a second tapered profile formed on an internal surface of the channel. A distal end surface of the distal tip extends through the opening and distally of a distal end surface of the elongated medical instrument when the first sealing feature is engaged with the second sealing feature. The first tapered profile and the second tapered profile form a seal that prevents fluid from passing through the opening when the imaging probe is within the working channel of the elongated medical instrument and the first and second sealing features contact.