Catheter

• US 4,392,855 A
• Filed: 04/14/1981
• Issued: 07/12/1983
• Est. Priority Date: 05/08/1980
• Status: Expired due to Term

• Current Assignee: Sherwood-Accurate, Inc.
• Original Assignee: HOFMANN, ELISABETH 588-590 RICHMOND ST., WEST TORONTO, ONTARIO, CANADA
• Inventors: Oreopoulos, Dimitrios G., Zellerman, Gabor
• Primary Examiner(s): Truluck, Dalton L.
• Application Number:
  US06/253,948
• Time in Patent Office: 819 Days
• Field of Search: 128/214 R, 128/348-350, 128/213 A, 604/29, 604/280, 604/175
• US Class Current: 604/175
• CPC Class Codes: A61M 1/285 Catheters therefor
• CPC Class Codes: A61M 2025/0293 Catheter, guide wire or the like with means for holding, centering, anchoring or frictionally engaging the device within an artificial lumen, e.g. tube
• CPC Class Codes: A61M 2039/0273 for introducing catheters into the body
• CPC Class Codes: A61M 2039/0282 with implanted tubes connected to the port
• CPC Class Codes: A61M 2039/0291 method or device for implanting it in the body
• CPC Class Codes: A61M 25/00 Catheters; Hollow probes dilators A61M29/00; peritoneal catheters A61M1/285; tracheal tubes A61M16/04; for drainage A61M27/00; for uterus, vagina or rectum A61M31/00 ; for measuring or testing A61B; materials for catheters A61L29/00
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body
• 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

Abstract

The invention is a permanent catheter for use in the practice of peritoneal dialysis. It has a bead on the tube that, in use, underlies the peritoneum and a cuff made of a fibrous material that has a disc that overlies the peritoneum and forms a scar tissue as a seal.

Claims

1. A permanent peritoneal catheter of flexible tubing comrpising a continuous flexible tube having a perforate peritoneum section, a subcutaneous section and an exterior section;

said peritoneum section having flexible locating discs of inert plastics material extending therefrom;

the peritoneum section having a circumferentially extending bead of inert material adjacent the subcutaneous section and a fibrous peritoneum cuff outwardly of and close to the bead;

said fibrous peritoneum cuff having a fibrous disc extending radially therefrom;

said fibrous peritoneum cuff and fibrous disc being close to said bead as aforesaid whereby to cooperate with said bead to hold a peritoneum membrane therebetween and form a seal at the peritoneum membrane in use;

the subcutaneous section having means for sealing the catheter at the outer skin.