X-RAY TIP CATHETER

• US 3,605,750 A
• Filed: 04/07/1969
• Issued: 09/20/1971
• Est. Priority Date: 04/07/1969
• Status: Expired due to Term

• Current Assignee: Malco Incorporated St Louis Missouri
• Original Assignee: David S. Sheridan, Isaac S. Jackson
• Inventors: Sheridan, David S., Jackson, Isaac S.
• Application Number:
  US04/814,061
• Time in Patent Office: 896 Days
• US Class Current: 600/435
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers
• CPC Class Codes: A61M 16/04 Tracheal tubes catheters in general A61M25/00
• CPC Class Codes: A61M 2205/32 with radio-opaque indicia
• CPC Class Codes: A61M 2207/00 Methods of manufacture, assembly or production
• CPC Class Codes: A61M 25/0108 using radio-opaque or ultrasound markers

Abstract

CATHETERS OF THE DISPOSABLE, SEAMLESS, EXTRUDED PLASTIC TYPE ARE MADE WITH DISTAL END PORTIONS THAT ARE X-RAY OPAQUE BY FUSING A PLASTIC ANNULUS CONTAINING X-RAY OPAQUE PIGMENT ONTO THE PREFORMED TUBE. THE CATHETER MAY HAVE ONE OR MORE OF SUCH X-RAY OPAQUE OUTLINED OPENINGS IN THE DISTAL END PORTION AND WHERE A PLURALITY ARE PROVIDED, THEIR SPACING MAY BE PROPORTIONED TO THE SIZE AND TYPE OF THE CATHETER. SUCH X-RAY OUTLINE PORTIONS PERMIT THE POSITION OF THE DISTAL END PORTION OF THE CATHETER WITHIN A PATIENT TO BE DETERMINED BY X-RAY METHODS.

Claims