US 9,808,301 B2
Method and apparatus for inflating and deflating balloon catheters
Marwan Abboud, Pierrefonds (CA); Rachid Mahrouche, Lasalle (CA); Chadi Harmouche, St-Laurent (CA); Teresa Ann Mihalik, Montreal (CA); and Giles Desrochers, Beaconsfield (CA)
Assigned to Medtronic CryoCath LP, Toronto, Ontario (CA)
Filed by Medtronic CryoCath LP, Toronto (CA)
Filed on Oct. 23, 2014, as Appl. No. 14/522,045.
Application 13/749,795 is a division of application No. 11/839,785, filed on Oct. 18, 2007, granted, now 8,382,747, issued on Feb. 26, 2013.
Application 14/522,045 is a continuation of application No. 13/749,795, filed on Jan. 25, 2013, granted, now 8,900,222.
Application 11/839,785 is a continuation of application No. 11/581,592, filed on Oct. 16, 2006, granted, now 8,491,636, issued on Jul. 23, 2013.
Application 11/581,592 is a continuation in part of application No. 10/806,995, filed on Mar. 23, 2004, granted, now 7,727,228, issued on Jun. 1, 2010.
Prior Publication US 2015/0045781 A1, Feb. 12, 2015
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 18/02 (2006.01); A61B 18/14 (2006.01); A61M 25/10 (2013.01); A61B 17/22 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/02 (2013.01) [A61B 18/1492 (2013.01); A61M 25/1011 (2013.01); A61M 25/1018 (2013.01); A61B 2017/22051 (2013.01); A61B 2018/0022 (2013.01); A61B 2018/00994 (2013.01); A61B 2018/0212 (2013.01); A61B 2018/0262 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method of providing coolant to a medical device having an expandable element, an injection lumen, and an exhaust lumen, the method comprising:
transferring the coolant from a first coolant reservoir to a second coolant reservoir, the first coolant reservoir and the second coolant reservoir being in fluid communication with the medical device;
wherein the exhaust lumen is selectively switchable between being in fluid communication with the second coolant reservoir and a vacuum source;
closing a valve between the first coolant reservoir and the second coolant reservoir to prevent a flow of the coolant between the first coolant reservoir and the second coolant reservoir;
then transferring the coolant from the second coolant reservoir into the exhaust lumen; and
then transferring the coolant directly from the exhaust lumen into the medical device.