초록 ▼

A method of making a elbowed end (coude) catheter which comprises: inserting an end of a flexible, thermoplastic tube into the bore of a closed-end, hollow, tubular die which defines the desired curve of the elbowed end catheter. The tubular die is heated to a temperature above the plastic melt temp

A method of making a elbowed end (coude) catheter which comprises: inserting an end of a flexible, thermoplastic tube into the bore of a closed-end, hollow, tubular die which defines the desired curve of the elbowed end catheter. The tubular die is heated to a temperature above the plastic melt temperature of the thermoplastic tube, while advancing the tube into the die, to cause at least about 0.5 cm. of the tube end to collapse into a generally solid, curved mass. The die and tube contained therein are then cooled to a temperature below the plastic melt temperature, and the tube is withdrawn having a closed, formed coude tip.

대표청구항 ▼

The method of making a elbowed-end catheter which comprises: inserting an end of a flexible, thermoplastic tube into the bore of a closed-end, hollow, tubular one piece die which defines the desired curve of the elbowed-end catheter; heating said tubular die to a temperature above the plastic melt t

The method of making a elbowed-end catheter which comprises: inserting an end of a flexible, thermoplastic tube into the bore of a closed-end, hollow, tubular one piece die which defines the desired curve of the elbowed-end catheter; heating said tubular die to a temperature above the plastic melt temperature of said thermoplastic tube, while advancing said tube into the die, to cause at least 0.5 cm. of the tube end to collapse into a curved mass; cooling said die and tube to a temperature below said plastic melt temperature; and withdrawing said tube from the die.