Peritoneal cannula

• US 3,253,594 A
• Filed: 07/30/1963
• Issued: 05/31/1966
• Est. Priority Date: 07/30/1963
• Status: Expired due to Term

• Current Assignee: Frank E. Matthews, Kevin G. Barry
• Original Assignee: Frank E. Matthews, Kevin G. Barry
• Inventors: Matthews, Frank E., Barry, Kevin G.
• Application Number:
  US04/298,711
• Time in Patent Office: 1,036 Days
• US Class Current: 604/103.03
• CPC Class Codes: A61M 2039/0261 Means for anchoring port to the body, or ports having a special shape or being made of a specific material to allow easy implantation/integration in the body
• CPC Class Codes: A61M 2039/0297 at least part of it being inflatable, e.g. for anchoring, sealing or removing
• CPC Class Codes: A61M 25/1009 Balloons anchored to a disc or plate
• CPC Class Codes: A61M 39/0247 Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body peritoneal dialysis catheters A61M1/285; tracheostomy devices A61M16/0465; measuring pressure within the body A61B5/03; colostomy devices A61F5/445; gastrotomy feeding tubes A61J15/0015; means for fixing a feeding tube outside of the body A61J15/0053

Claims

1. A CANNULA FOR SEALING A PERFORMATION IN FLESH THAT FORMS A CAVITY IN A BODY AND FOR RELEASABLY SECURING TO SAID BODY COMPRISING:

AN ELONGATED CANNULA HAVING A PASSAGEWAY, AN INFLATED BALLOON SURROUNDING ONE END OF SAID CANNULA, SEPARATE CONNECTING MEANS SECURED TO ONE END OF SAID CANNULA AND RADIALLY OUTWARDLY TO SAID BALLOON, SAID BALLOON BEING POSITIONED RADIALLY OUTWARDLY FROM SAID CANNULA AT THE POINT OF INTERSECTION OF THE BALLOON AND SAID CONNECTING MEANS, SAID SEPARATE CONNECTING MEANS BEING UNIFORMLY THINNER IN LONGITUDINAL CROSS SECTION THAN SAID BALLON WHEN SAID BALLOON IS INFLATED, SAID BALLOON IN INFLATED CONDITION HAVING A RADIALLY OUTWARDLY EXTENDING SURFACE FACING THE OTHER END OF SAID CANNULA FORMING A FIRST CONTACT AREA, A LUMEN EXTENDING SUBSTANTIALLY THE LENGTH OF THE CANNULA AND PASSING THROUGH AT LEAST A PORTION OF SAID CONNECTING MEANS AND SECURED SO AS TO BE IN FLUID COMMUNICATION WITH SAID BALLOON, SAID FIRST AREA BEING RADIALLY SPACED FROM SAID CANNULA AND ADAPTED TO BE SUBSTANTIALLY SPACED FROM THE EDGES OF SAID PERFORATION BY SAID SEPARATING MEANS SO AS TO PROVIDE A FIRM CONTACT BETWEEN THE BALLOON AND THE FLASH, CANNULA HOLDING MEANS POSITIONED ON SAID CANNULA FOR AXIAL MOVEMENT ALONG SAID CANNULAR TO IMPART TENSION TO SAID CANNULAR IN ORDER TO MAINTAIN SAID FIRST AREA TIGHTLY AGAINST SAID FLESH, SAID HOLDING MEANS INCLUDING A SECOND CONTACT AREA FACING SAID FIRST AREA IN ORDER THAN PRESSURE EXERTED BY SAID SECOND AREA TOWARDS FIRST AREA EMBEDS SAID FIRST AREA INTO THE FLESH AROUND BUT SUBSTANTIALLY SPACED FROM SAID PERFORATION TO EFFECTIVELY SEAL SAID PERFORATION FROM SAID CAVITY, AND PRESSURE MAINTAINING MEANS INCLUDED IN SAID HOLDING MEANS FOR MAINTAINING PRESSURE OF SAID SECOND AREA TOWARDS SAID FIRST AREA.