초록 ▼

An over-the-needle catheter for insertion into an anatomical passage through the use of an introducer. The catheter comprises an elongate, flexible catheter body defining proximal and distal ends, and a lumen extending longitudinally therethrough. Partially inserted into and protruding from the dist

An over-the-needle catheter for insertion into an anatomical passage through the use of an introducer. The catheter comprises an elongate, flexible catheter body defining proximal and distal ends, and a lumen extending longitudinally therethrough. Partially inserted into and protruding from the distal end of the catheter body is a rigid, tubular sleeve which defines an abutment shoulder within the lumen of the catheter body. Disposed on and encapsulating the exposed portion of the sleeve is a distal tip member defining a central opening which communicates with the lumen via the sleeve. The abutment shoulder is adapted to abut a portion of the introducer in a manner which inhibits proximal movement of the tip member relative to the introducer to prevent the tip member from being pushed proximally over the introducer and collapsing the catheter body during the insertion of the catheter into the anatomical passage.

대표청구항 ▼

[ What is claimed is:] [1.] A catheter for insertion into an anatomical passage through the use of an introducer, said catheter comprising:an elongate, flexible catheter body formed of a first material and defining proximal and distal ends and a lumen extending longitudinally therethrough;a rigid, t

[ What is claimed is:] [1.] A catheter for insertion into an anatomical passage through the use of an introducer, said catheter comprising:an elongate, flexible catheter body formed of a first material and defining proximal and distal ends and a lumen extending longitudinally therethrough;a rigid, tubular sleeve partially inserted into the distal end of the catheter body and protruding therefrom, said sleeve being fixed to the catheter body and defining an abutment shoulder within the lumen thereof; anda distal tip member disposed on and encapsulating an exposed portion of the sleeve, said tip member being formed of a second material different from said first material and defining a central opening which communicates with the lumen via the sleeve;said abutment shoulder being adapted to abut a portion of the introducer in a manner which inhibits proximal movement of the tip member relative to the introducer to prevent the tip member from being pushed proximally over the introducer and collapsing the catheter body during the insertion of the catheter into the anatomical passage.