US 12,133,950 B1
Method and device for treating venous insufficiency and varicose veins
Johann Christof Ragg, Berlin (DE)
Assigned to ANGIOCLINIC AG, Lachen (CH)
Filed by ANGIOCLINIC AG, Lachen (CH)
Filed on Dec. 7, 2022, as Appl. No. 18/076,951.
Application 18/076,951 is a division of application No. 14/396,690, granted, now 11,529,451, previously published as PCT/EP2013/058066, filed on Apr. 18, 2013.
Claims priority of application No. 12165246 (EP), filed on Apr. 24, 2012.
Int. Cl. A61M 1/00 (2006.01); A61B 17/00 (2006.01); A61B 17/12 (2006.01); A61K 9/12 (2006.01); A61K 31/08 (2006.01); A61K 47/02 (2006.01); A61K 47/32 (2006.01); A61M 25/00 (2006.01); A61M 25/01 (2006.01)
CPC A61M 1/85 (2021.05) [A61B 17/00491 (2013.01); A61B 17/12131 (2013.01); A61B 17/12186 (2013.01); A61K 9/122 (2013.01); A61K 31/08 (2013.01); A61K 47/02 (2013.01); A61K 47/32 (2013.01); A61M 25/007 (2013.01); A61M 25/01 (2013.01); A61M 2025/0006 (2013.01); A61M 2025/0175 (2013.01); A61M 2202/02 (2013.01); A61M 2210/12 (2013.01)] 10 Claims
 
1. A double-tube injection and aspiration catheter device comprising:
a. one outer tube (1) and one inner tube (2), forming a functional unit with the inner tube (2) positioned within the outer tube (1), wherein the outer tube is fluidly isolated from the inner tube,
b. both the outer tube and the inner tube being relocatable and demountable,
c. both the outer tube and the inner tube having respective first and second ends, wherein each of the outer tube and the inner tube has an aperture (3 and 4) at each of its first and second ends,
d. the outer tube comprising a wall having a single aperture (5) located at a distance of about between 5 mm and 40 mm from a tip (6) of the outer tube, or a plurality of apertures positioned in a segment of 5-250 mm from the tip of the outer tube, wherein the diameter of the single aperture is between 70% and 120% of an inner diameter of the outer tube (1), or in case of a plurality of apertures, the diameter of each aperture is between 30% and 60% of the inner diameter of the outer tube;
e. wherein the inner tube has an outer diameter that is between 0.6 mm and 2.0 mm, and wherein an inner diameter of the inner tube is between 0.3 mm and 1.6 mm;
f. wherein the outer tube has an outer diameter between 1.3 mm and 2.8 mm, and wherein the inner diameter of the outer tube is between 1.0 mm and 2.4 mm;
g. wherein the inner tube comprises a wall having an inner surface and an outer surface, wherein a distance between the outer surface of the wall of the inner tube and an inner surface of the wall of the outer tube is between 0.1 mm to 3.0 mm.