Catheter distal tip component

A medical catheter comprising:

• a guidewire shaft having a proximal end and a distal end, the guidewire shaft defining a guidewire lumen sized to accommodate a guidewire;
• a distal tip extension having a proximal end, a distal end and an intermediate portion, the intermediate portion located between the proximal end and the distal end of the distal tip extension, the distal tip extension defining a distal tip extension lumen sized to accommodate a guidewire;
• the distal tip extension having at the proximal end thereof, the distal end of the guidewire shaft sealingly affixed therein;
• an inflatable balloon comprising:
• a body portion having a proximal end and a distal end;
• a tail portion having a proximal end, a distal end;
• and
• a cone shaped portion, the cone shaped portion extending between the distal end of the body portion and the proximal end of the tail portion, the tail portion being sealingly affixed to the distal tip extension such that the proximal end of the distal tip extension extends proximally from the proximal end of the tail portion;
• wherein the distal tip extension intermediate portion has a proximate portion and a distal portion, the proximate portion has a first outer diameter and the distal portion has a second, smaller outer diameter;
• and
• wherein the tail portion is sealingly affixed to the distal tip extension at the second outer diameter.

A medical catheter comprising:

• a guidewire shaft having a proximal end and a distal end, the guidewire shaft defining a guidewire lumen sized to accommodate a guidewire;
• a distal tip extension having a proximal end, a distal end and an intermediate portion, the intermediate portion located between the proximal end and the distal end of the distal tip extension, the distal tip extension defining a distal tip extension lumen sized to accommodate a guidewire;
• the distal tip extension having at the proximal end thereof, the distal end of the guidewire shaft sealingly affixed therein;
• an inflatable balloon comprising:
• a body portion having a proximal end and a distal end;
• a tail portion having a proximal end a distal end;
• and
• a cone shaped portion, the cone shaped portion extending between the distal end of the body portion and the proximal end of the tail portion, the tail portion being sealingly affixed to the distal tip extension such that the proximal end of the distal tip extension extends proximally from the proximal end of the tail portion;
• and
• wherein the distal tip extension lumen is larger at the proximal end of the distal tip extension than at the distal end of the distal tip extension.

A medical catheter comprising:

• a guidewire shaft having a proximal end and a distal end, the guidewire shaft defining a guidewire lumen sized to accommodate a guidewire;
• a distal tip extension having a proximal end, a distal end and an intermediate portion, the intermediate portion located between the proximal end and the distal end of the distal tip extension, the distal tip extension defining a distal tip extension lumen sized to accommodate a guidewire;
• the distal tip extension having at the proximal end thereof, the distal end of the guidewire shaft sealingly affixed therein;
• an inflatable balloon comprising:
• a body portion having a proximal end and a distal end;
• a tail portion having a proximal end, a distal end;
• and
• a cone shaped portion, the cone shaped portion extending between the distal end of the body portion and the proximal end of the tail portion the tail portion being sealingly affixed to the distal tip extension such that the proximal end of the distal tip extension extends proximally from the proximal end of the tail portion;
• and
• wherein the distal tip extension outer diameter tapers from the intermediate portion thereof to the proximal end thereof.

A medical catheter comprising:

• a guidewire shaft having a proximal end and a distal end, the guidewire shaft defining a guidewire lumen sized to accommodate a guidewire;
• a distal tip extension having a proximal end, a distal end and an intermediate portion, the intermediate portion located between the proximal end and the distal end of the distal tip extension, the distal tip extension defining a distal tip extension lumen sized to accommodate a guidewire;
• the distal tip extension having at the proximal end thereof, the distal end of the guidewire shaft sealingly affixed therein;
• an inflatable balloon comprising:
• a body portion having a proximal end and a distal end;
• a tail portion having a proximal end, a distal end;
• and
• a cone shaped portion, the cone shaped portion extending between the distal end of the body portion and the proximal end of the tail portion, the tail portion being sealingly affixed to the distal tip extension such that the proximal end of the distal tip extension extends proximally from the proximal end of the tail portion;
• wherein the tail portion is sealingly affixed to the distal tip extension by an adhesive;
• and
• wherein the adhesive is shaped into a taper at the distal end of the tail portion.

A medical catheter comprising:

• a guidewire shaft having a proximal end and a distal end, the guidewire shaft defining a guidewire lumen sized to accommodate a guidewire;
• a distal tip extension having a proximal end, a distal end and an intermediate portion, the intermediate portion located between the proximal end and the distal end of the distal tip extension, the distal tip extension defining a distal tip extension lumen sized to accommodate a guidewire;
• the distal tip extension having at the proximal end thereof, the distal end of the guidewire shaft sealingly affixed therein;
• an inflatable balloon comprising:
• a body portion having a proximal end and a distal end;
• a tail portion having a proximal end a distal end;
• and
• a cone shaped portion, the cone shaped portion extending between the distal end of the body portion and the proximal end of the tail portion, the tail portion being sealingly affixed to the distal tip extension such that the proximal end of the distal tip extension extends proximally from the proximal end of the tail portion;
• and
• wherein the distal end of the guidewire shaft is in alignment with the proximal end of the tail portion.

A medical catheter comprising:

• a guidewire shaft having a proximal end and a distal end, the guidewire shaft defining a guidewire lumen sized to accommodate a guidewire;
• a distal tip extension having a proximal end and a distal end, the distal tip extension defining a distal tip extension lumen sized to accommodate a guidewire;
• the distal tip extension having an intermediate portion which includes a proximate intermediate portion with a first outer diameter, the distal tip extension having a distal intermediate portion with a second, smaller outer diameter and the distal end of the guidewire shaft sealingly affixed within the proximal end of the distal tip extension;
• and
• an inflatable balloon comprising:
• a body portion having a proximal end and a distal end;
• a tail portion having a proximal end and a distal end;
• and
• a cone shaped portion, the cone-shaped portion extending between the distal end of the body portion and the proximal end of the tail portion, the tail portion sealingly affixed to the distal tip extension at the second, smaller diameter at the distal intermediate portion such that the proximal end of the distal tip extension extends proximally from the proximal end of the tail portion, the distal end of the distal tip extension extends distally from the distal end of the tail portion and the distal end of the guidewire shaft is in alignment with the proximal end of the tail portion.