US 11,986,603 B2
Aortic valve no exchange catheter
P. Kasi Ramanathan, Ottawa Hills, OH (US)
Assigned to PROMEDICA HEALTH SYSTEM, INC., Toledo, OH (US)
Filed by ProMedica Health System, Inc., Toledo, OH (US)
Filed on Mar. 19, 2021, as Appl. No. 17/206,789.
Application 17/206,789 is a continuation of application No. 15/907,456, filed on Feb. 28, 2018, granted, now 10,953,194, issued on Mar. 23, 2021.
Claims priority of provisional application 62/469,624, filed on Mar. 10, 2017.
Prior Publication US 2021/0213246 A1, Jul. 15, 2021
Int. Cl. A61M 25/00 (2006.01); A61M 25/01 (2006.01); A61M 25/09 (2006.01); A61F 2/24 (2006.01); A61M 5/00 (2006.01)
CPC A61M 25/0026 (2013.01) [A61M 25/0108 (2013.01); A61M 25/0136 (2013.01); A61M 25/09 (2013.01); A61F 2/2427 (2013.01); A61F 2/2436 (2013.01); A61M 5/007 (2013.01); A61M 2025/0002 (2013.01); A61M 2025/0004 (2013.01); A61M 2025/0006 (2013.01); A61M 25/0029 (2013.01); A61M 25/003 (2013.01); A61M 2025/0063 (2013.01); A61M 25/0141 (2013.01); A61M 2205/502 (2013.01); A61M 2230/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A concentric two-tube catheter device, said device comprising:
an inner tubular member having a proximal end attached to a handle body and a distal end with a tip shape configured for a particular medical procedure;
an outer tubular member concentric with and slidably disposed upon the inner tubular member, said outer tubular member having a proximal end attached to a control element, and a tip shape configured for placement of the catheter device in a patient;
a handle assembly comprising the handle body and the control element, where the control element is slidably disposed upon the handle body, and where positioning the control element at a distal end of the handle body causes the outer tubular member to be fully extended and fully cover the inner tubular member, and positioning the control element at a proximal end of the handle body causes the outer tubular member to be retracted and expose the distal end of the inner tubular member, and
a side port coupled to the control element, wherein an opening extends through the control element from an outer surface thereof to an inner surface thereof, wherein the opening provides fluid communication between the side port and an annular space disposed between the outer tubular member and the inner tubular member,
where the outer tubular member has a bending stiffness greater than that of the inner tubular member, causing the tip shape of the inner tubular member to conform to the tip shape of the outer tubular member when the inner tubular member is fully covered by the outer tubular member.