US 11,872,356 B2
Echogenic catheter and catheter system
S. Ray Isaacson, Layton, UT (US); Jeffrey C. O'Bryan, Murray, UT (US); Ralph L. Sonderegger, Farmington, UT (US); Marc Weimer, South Jordan, UT (US); Lawrence Trainer, Murray, UT (US); and Seth R. Strand, South Jordan, UT (US)
Assigned to Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Filed by Becton, Dickinson and Company, Franklin Lakes, NJ (US)
Filed on Jan. 2, 2019, as Appl. No. 16/238,090.
Claims priority of provisional application 62/614,141, filed on Jan. 5, 2018.
Prior Publication US 2019/0209809 A1, Jul. 11, 2019
Int. Cl. A61M 25/01 (2006.01); A61M 25/00 (2006.01); A61M 25/06 (2006.01); A61L 29/18 (2006.01); A61B 8/08 (2006.01); A61M 39/06 (2006.01)
CPC A61M 25/0108 (2013.01) [A61B 8/0841 (2013.01); A61L 29/18 (2013.01); A61M 25/005 (2013.01); A61M 25/0606 (2013.01); A61M 25/0012 (2013.01); A61M 2039/062 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A medical device, comprising:
a catheter adapter; and
a cannula forming a lumen having a length between a first end and an opposing second end of the cannula, the lumen extending parallel to a longitudinal axis of the cannula and extending along at least a portion of the length, the cannula comprising a wall and a plurality of stripes encapsulated into the wall and extending along at least a portion of the length of the cannula, wherein the plurality of stripes are constructed of a first thermoplastic polymer material filled with both a plurality of radiopacifiers and a plurality of echogenic voids, wherein the wall is constructed of a second thermoplastic polymer material and forms an outer surface of the cannula and an inner surface of the cannula proximate the lumen, wherein the first thermoplastic polymer material is bonded to the second thermoplastic polymer material, wherein each of the plurality of stripes is encapsulated by the second thermoplastic polymer material, wherein the plurality of echogenic voids form an irregular outer surface of each of the plurality of stripes, wherein the plurality of echogenic voids are spaced apart from the outer surface of the cannula and the inner surface of the cannula such that outer surface of the cannula and the inner surface of the cannula are smooth having a shape not affected by the plurality of echogenic voids.