US 9,808,595 B2
Microfabricated catheter with improved bonding structure
Todd H. Turnlund, Park City, UT (US); and Walter Lynn Kerby, South Jordan, UT (US)
Assigned to BOSTON SCIENTIFIC SCIMED, INC, Maple Grove, MN (US)
Filed by Todd H. Turnlund, Park City, UT (US); and Walter Lynn Kerby, South Jordan, UT (US)
Filed on Aug. 7, 2007, as Appl. No. 11/835,207.
Prior Publication US 2009/0043283 A1, Feb. 12, 2009
Int. Cl. A61M 25/00 (2006.01); A61M 25/01 (2006.01)
CPC A61M 25/0013 (2013.01) [A61M 25/0051 (2013.01); A61M 25/0054 (2013.01); A61M 25/0045 (2013.01); A61M 25/0138 (2013.01); A61M 2025/006 (2013.01); A61M 2025/0006 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A medical device, comprising:
an elongated tubular member having a length, an inner surface defining a lumen, a proximal end, and a distal end, the tubular member including a monolithic body having a length and including a plurality of slots formed therein;
a tubular liner disposed within the elongated tubular member, the liner having a length, an outer surface, and an inner surface defining a lumen, wherein the outer surface is spaced from the inner surface of the tubular member such that a space is defined therebetween;
a plurality of discrete bonding members disposed in the space and attaching the elongated tubular member to the tubular liner, wherein each of the plurality of bonding members is within 15 centimeters or less of an adjacent bonding member along the length of the tubular member;
wherein the plurality of discrete bonding members include a weld, adhesive bond, braze, crimp, solder bond, epoxy bond, bonding substance, thermal bond, or combinations thereof that fixedly attach the elongated tubular member to the tubular liner;
wherein a first group of bonding members are disposed along a first portion of the liner to provide the medical device with a first flexibility, the first group of bonding members including a pair of bonding members disposed opposite each other at a first longitudinal position along the liner and a second group of bonding members are disposed along a second portion of the liner, the second group of bonding members having a different number of bonding members from the first group of bonding members, the second group of bonding members including three or more bonding members that are equally spaced about the liner at a second longitudinal position along the liner different from the first longitudinal position so as to provide the medical device with a second flexibility different from the first flexibility; and
wherein the number of bonding members per unit length decreases along the length of the liner and forms a smooth transition between the first flexibility and the second flexibility.