Catheter having encapsulated tip marker

• US 4,571,240 A
• Filed: 08/12/1983
• Issued: 02/18/1986
• Est. Priority Date: 08/12/1983
• Status: Expired due to Term

• Current Assignee: Advanced Cardiovascular Systems Incorporated
• Original Assignee: Advanced Cardiovascular Systems Incorporated
• Inventors: Samson, Wilfred J., Frisbie, Jeffrey S.
• Primary Examiner(s): Pellegrino, Stephen C.
• Application Number:
  US06/522,820
• Time in Patent Office: 921 Days
• Field of Search: 604/96, 604/97, 604/100, 604/103, 604/264, 604/270, 604/280, 604/282, 604/283, 128/656, 128/658, 128/207.14
• US Class Current: 604/103.1
• CPC Class Codes: A61M 25/0108 using radio-opaque or ultrasound markers

Abstract

A catheter comprising a first elongate flexible member having a cylindrical outer surface and having proximal and distal ends. A metallic band of radio opaque material is disposed on the outer surface of the elongate member in the vicinity of the distal end of the elongate member. A tubular member of a flexible material is carried by the distal end of the elongate member and encapsulates the metallic band to prevent its accidental dislodgment from the tip of the catheter.

Claims

1. In a catheter, a first elongate flexible member having a cylindrical outer surface and having proximal and distal ends, a metallic band of radio opaque material disposed on the outer surface of the elongate member in the vicinity of the distal end of the elongate member, a tubular member of a flexible material carried by the distal end of the elongate member and encapsulating the metallic band to prevent its accidental dislodgment from the tip of the catheter the tubular member having formed therein, at the distal end thereof, an annular recess which receives the metallic band.

2. A catheter as in claim 1 wherein the flexible elongate member is provided with a central lumen.

3. A catheter as in claim 1 wherein the tubular member extends the length of the catheter, together with a balloon formed on the distal end of the elongate member and providing a chamber and wherein the tubular member in conjunction with the elongate flexible member provides a flow passage extending into the chamber.

4. A catheter as in claim 1 wherein the catheter is a balloon-type catheter.

5. A catheter as in claim 1 wherein the catheter is a reperfusion-type catheter.

6. A catheter as in claim 1 in which the band in a cross section extending axially of the band is generally rectangular.

7. A catheter as in claim 1 in which the band has a planar outer cylindrical surface.