Abstract: Method for making a catheter comprising, an elongated shaft having a main lumen extending through the shaft, and an inflation lumen extending through a wall of the shaft. The catheter has a tip molded directly onto a distal end of the shaft, and a connecter molded directly onto a proximal end of the shaft.

Abstract: A catheter comprising, an elongated shaft having a main lumen extending through the shaft, and an inflation lumen extending through a wall of the shaft. The catheter has a tip molded directly onto a distal end of the shaft, and a connecter molded directly onto a proximal end of the shaft.

Abstract: A chassis for printed circuit (P.C.) boards composed of a pair of parallel end plates having perforation patterns in the corners to receive pronged keys fitting into the ends of multiple channelled rails which extend between the end plates in parallelism with each other and are provided with spaced pairs of notches in rows respectively serving as receiving guides for the P.C. boards and positioning means for the ends of grooved card guides which extend between pairs of said rails and disposed respectively in parallel planes common with opposite edges of said end plates. Self-tapping screws extend through certain perforations in said patterns thereof and also through a hole in each key for threaded engagement with the end of a certain channel of each of said rails to maintain said rails against turning and thereby align opposite guide and positioning notches accurately with each other. A simple manually operable tool is detachably connected to the chassis for convenient use to extract and insert P.C. boards.