Vascular access port and catheter

Abstract

A vascular access port and catheter for use in association with same. The port has a length greater than its height and an access face that is angled with respect to the longitudinal axis of the port. The catheter has a first end for association with a port, and a second end with an angled intra-vascular flange. Apart from the flange is an extra-vascular retaining ring. The wall of the vessel is disposed between the intra vascular flange and extra vascular retaining ring to hold the catheter in place without the need of sutures.

1 - 17 . (canceled) 
     
     
         18 . A catheter comprising:
 a tubular extension extending from a first end to a second end and defining a longitudinal axis between the first end and the second end, wherein the first end is configured to receive a connecting member;   an intra-vascular flange formed from a first material and coupled to the tubular extension at the second end;   an extra-vascular retaining ring coupled to the tubular extension and spaced apart from the intra-vascular flange; and   a sleeve of stent material coupled to an outer surface of the tubular extension such that the sleeve terminates at a sleeve distal end and a sleeve proximal end whereby the entirety of the sleeve lies between the extra-vascular retaining ring and the first end of the tubular extension;   wherein the extra-vascular retaining ring and the intra-vascular flange are configured to hold the catheter in place when a wall of a peripheral vessel is positioned between them.   
     
     
         19 . The catheter of  claim 18 , wherein the extra-vascular retaining ring is a continuous ring in uninterrupted contact with the tubular extension around a circumference of the tubular extension. 
     
     
         20 . The catheter of  claim 18 , wherein the extra-vascular retaining ring is integrally formed with the tubular extension. 
     
     
         21 . The catheter of  claim 18 , wherein the extra-vascular retaining ring is movable along the tubular extension. 
     
     
         22 . The catheter of  claim 18 , further comprising an annular disk formed from a second material coupled to a planar upper face of the intra-vascular flange, the second material being different from the first material such that the annular disk is configured to increase the rigidity of the intra-vascular flange. 
     
     
         23 . The catheter of  claim 22 , wherein the annular disk is constructed of a stent material comprising stent barbs. 
     
     
         24 . The catheter of  claim 22 , wherein an inner face of the annular disk abuts the tubular extension and an outer face of the annular disk is adjacent an outer edge of the intra-vascular flange. 
     
     
         25 . The catheter of  claim 18 , wherein the extra-vascular retaining ring has a hemispherical cross-section. 
     
     
         26 . The catheter of  claim 18 , wherein the intra-vascular flange includes tapered edges. 
     
     
         27 . The catheter of  claim 18 , wherein the intra-vascular flange is disposed at an oblique angle with respect to the longitudinal axis. 
     
     
         28 . The catheter of  claim 18 , wherein the sleeve comprises a stent material comprising nitinol. 
     
     
         29 . A catheter comprising:
 a tubular extension extending from a first end to a second end and defining a longitudinal axis between the first end and the second end, wherein the first end is configured to receive a connecting member;   an intra-vascular flange formed from a first material and coupled to the tubular extension at the second end of the tubular extension, the intra-vascular flange being non-orthogonal to the longitudinal axis and having an upper face and a lower face, wherein the upper face is nearer the first end than is the lower face;   an extra-vascular retaining ring coupled to the tubular extension and spaced apart from the intra-vascular flange, the extra-vascular retaining ring being a continuous ring;   an annular disk coupled to the upper face of the intra-vascular flange; and   a sleeve of stent material coupled to an outer surface of the tubular extension such that the sleeve terminates at a sleeve distal end and a sleeve proximal end, whereby the sleeve lies between the extra-vascular retaining ring and the first end of the tubular extension;   wherein the extra-vascular retaining ring and the intra-vascular flange are configured to hold the catheter in place when a wall of a peripheral vessel is positioned between them.   
     
     
         30 . The catheter of  claim 29 , wherein a distal end of the sleeve is adjacent the extra-vascular retaining ring. 
     
     
         31 . The catheter of  claim 29 , wherein the sleeve comprises a stent material comprising nitinol. 
     
     
         32 . The catheter of  claim 29 , wherein the annular disk is constructed of a stent material comprising stent barbs. 
     
     
         33 . The catheter of  claim 29 , wherein an inner face of the annular disk abuts the tubular extension and an outer face of the annular disk is adjacent an outer edge of the intra-vascular flange. 
     
     
         34 . A catheter, comprising:
 a tubular extension extending from a first end to a second end, wherein the first end is configured to receive a connecting member;   an extra-vascular retaining ring coupled to the tubular extension, and   a sleeve of stent material coupled to an outer surface of the tubular extension such that the sleeve terminates at a sleeve distal end and a sleeve proximal end whereby the entirety of the sleeve lies between the extra-vascular retaining ring and the first end of the tubular extension.   
     
     
         35 . The catheter of  claim 34 , wherein the extra-vascular retaining ring is integrally formed with the tubular extension. 
     
     
         36 . The catheter of  claim 34 , wherein the extra-vascular retaining ring has a hemispherical cross-section. 
     
     
         37 . The catheter of  claim 34 , wherein the sleeve comprises a stent material comprising nitinol.