초록 ▼

A guide catheter having a tubular body with a wire-braided Teflon core and a polyurethane jacket. The distal end of the jacket is removed from the core, and a soft polyurethane tip is applied to the core over the region where the jacket has been removed. The tip overlaps the core for approximately t

A guide catheter having a tubular body with a wire-braided Teflon core and a polyurethane jacket. The distal end of the jacket is removed from the core, and a soft polyurethane tip is applied to the core over the region where the jacket has been removed. The tip overlaps the core for approximately two millimeters and extends distally approximately two millimeters beyond the distal end of the core. The tip may be applied to the core as a separate tube bonded to it or be built up on the core by repeatedly dipping the top in a polyurethane slurry, or be molded onto the distal end of the core.

대표청구항 ▼

An intravascular catheter comprising a main tubular body having a relatively hard Teflon core including wire braid and a generally coextensive polyurethane outer jacket, said body having proximal and distal ends, said distal end of the body having an end portion of reduced diameter distally beyond t

An intravascular catheter comprising a main tubular body having a relatively hard Teflon core including wire braid and a generally coextensive polyurethane outer jacket, said body having proximal and distal ends, said distal end of the body having an end portion of reduced diameter distally beyond the wire braid and outer jacket but overlapping the Teflon core, and a polyurethane tubular tip made of the same material throughout and having a proximal end overlapping the reduced diameter end portion of the body and extending distally beyond the reduced diameter end of the core, said tip having an outer diameter at its proximal end substantially equal to the outer diameter of the jacket immediately adjacent said end portion and having an inner diameter distally beyond the reduced diameter end portion which is substantially equal to the inner diameter of said end portion, the material of the tip being softer than the material of the outer jacket.