Intravascular catheter with coaxial puncturing means

• US 3,313,299 A
• Filed: 02/05/1964
• Issued: 04/11/1967
• Est. Priority Date: 02/05/1964
• Status: Expired due to Term

• Current Assignee: Richard G. Spademan
• Original Assignee: Richard G. Spademan
• Inventors: Spademan, Richard G.
• Application Number:
  US04/342,602
• Time in Patent Office: 1,161 Days
• US Class Current: 604/167.02
• CPC Class Codes: A61B 17/3415 for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters A61B17/3417 takes precedence; body piercing catheter guide needles A61M25/06
• CPC Class Codes: A61M 39/0606 without means for adjusting the seal opening or pressure A61M39/0693 takes precedence

Claims

1. AN INTRAVASCULAR CATHETER COMPRISING:

A HUB HAVING A BORE FORMED THERETHROUGH AND A PASSAGE THEREIN ANGULARLY DISPOSED RELATIVE TO SAID BORE AND IN COMMUNICATION THEREWITH;

A RESILIENT PLASTIC TUBE SECURED AT ONE END TO SAID HUB AND EXTENDING AXIALLY THEREFROM, SAID TUBE BEING IN ALIGNMENT WITH SAID BORE IN SAID HUB;

A TROCAR EXTENDING THROUGH SAID BORE IN SAID HUB AND THROUGH SAID TUBE AND HAVING A SHARPENED END EXTENDING BEYOND THE END OF SAID TUBE, SAID TROCAR BEING ADAPTED TO PIERCE A VASCULAR WALL TO PERMIT INSERTION OF SAID TUBE INTO VASCULAR CHANNEL, AND SAID TROCAR BEING RETRACTABLE FROM SAID TUBE AND SAID HUB WHEN SAID TUBE IS DISPOSED IN THE VASCULAR CHANNEL TO PERMIT UNIMPEDED FLOW WITHIN THE VASCULAR CHANNEL;

SAID TUBE TO FLEX WITHIN THE VASCULAR CHANNEL;

BLOCKING MEANS IN SAID HUB FOR PREVENTING THE FLOW OF FLUID FROM THE END THEREOF OPPOSITE FROM SAID ONE END WHEN SAID TROCAR IS RETRACTED FROM SAID TUBE AND SAID HUB;

AND MEANS FOR CONNECTING INFUSION MEANS TO SAID ANGULARLY DISPOSED PASSAGE IN SAID HUB PRIOR TO INSERTION INTO THE VASCUALR CHANNEL FOR INFUSING A FLUID DIRECTLY THROUGH SAID TUBE AND INTO SAID VASCUALR CHANNEL IMMEDIATELY UPON RETRACTION OF SAID TROCAR FROM SAID TUBE.