SPLITTABLE CATHETER

摘要

This invention relates to a splittable device incorporating at least one preferential tear line. The preferential tear line is formed by extruding a stripe of material in the main body portion of the device. The material used for the stripe and the material that is used to form the main body portion of the device have different properties. For example, each material can have similar melt and flow properties and a cohesive strength greater than the adhesive strength therebetween. Alternatively, the material used for the stripe may have a cohesive strength that is lower than the cohesive strength of the material that it used to form the main body portion of the device and that is lower than the adhesive strength therebetween but with each material still having similar melt and flow properties.