US 12,268,405 B2
Heat sinks for catheters, and systems and methods thereof
Chad Van Liere, Phoenix, AZ (US)
Assigned to C. R. Bard, Inc., Franklin Lakes, NJ (US)
Filed by C.R. Bard, Inc., Franklin Lakes, NJ (US)
Filed on May 10, 2023, as Appl. No. 18/315,224.
Application 18/315,224 is a division of application No. 16/759,897, granted, now 11,707,288, previously published as PCT/US2017/061083, filed on Nov. 10, 2017.
Prior Publication US 2023/0270458 A1, Aug. 31, 2023
Int. Cl. A61B 17/22 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/22012 (2013.01) [A61B 2017/00477 (2013.01); A61B 2017/22015 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for making a catheter assembly for modifying intravascular lesions, the method comprising:
molding a cartridge including a damping-mechanism bore in a first sleeve;
disposing a second sleeve over the first sleeve to form a heat sink including the first and second sleeves;
disposing a core wire through a center of the damping mechanism bore coincident with a rotational axis of the cartridge;
disposing a plurality of O-rings in the damping-mechanism bore around the core wire; and
fixing a retainer in a proximal end of the damping mechanism bore to form a damping mechanism around the core wire, wherein fixing the retainer in the proximal end of the damping mechanism bore generates a compressive force on the core wire sufficient for damping vibrational energy in a proximal-end portion of the core wire.