US 12,419,646 B2
Medical device delivery member with flexible stretch resistant mechanical release
Juan Lorenzo, Davie, FL (US)
Assigned to DEPUY SYNTHES PRODUCTS, INC., Raynham, MA (US)
Filed by DePuy Synthes Products, Inc., Raynham, MA (US)
Filed on Jul. 26, 2022, as Appl. No. 17/873,399.
Application 17/873,399 is a continuation of application No. 16/592,320, filed on Oct. 3, 2019, granted, now 11,426,174.
Prior Publication US 2022/0354502 A1, Nov. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 2/95 (2013.01); A61B 17/00 (2006.01); A61B 17/12 (2006.01)
CPC A61B 17/1214 (2013.01) [A61B 17/00234 (2013.01); A61B 17/12113 (2013.01); A61B 2017/00336 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A delivery member for delivering an implantable medical device to a target location of a body vessel, the delivery member comprising:
a proximal hypotube;
a flexible coil extending from a distal end of the proximal hypotube;
a compressible distal hypotube extending from a distal end of the flexible coil;
a lumen extending from a proximal end of the proximal hypotube, through the proximal hypotube, through the flexible coil, through the compressible distal hypotube, and to a distal end of the compressible distal hypotube;
a sleeve extending along a majority of the flexible coil, wherein the sleeve is effective to inhibit radial expansion of the flexible coil;
a stretch-resistant loop wire comprising a first end and a second end, each affixed to the proximal hypotube, the stretch-resistant loop wire further comprising a loop opening positioned approximate a distal end of the compressible distal hypotube,
wherein the stretch-resistant loop wire is effective to inhibit longitudinal elongation of the flexible coil; and
a pull wire extending through the lumen,
wherein the stretch-resistant loop wire and the pull wire are positioned to secure the implantable medical device to the delivery member,
wherein the stretch-resistant loop wire and the pull wire are movable to release the implantable medical device from the delivery member,
wherein the stretch-resistant loop wire is under tension when the implantable medical device is secured to the delivery member,
wherein the compressible distal hypotube is compressed due to tension in the stretch-resistant loop wire when the implantable medical device is secured to the compressible distal hypotube, and
wherein the compressible distal hypotube is movable to decompress upon movement of the stretch-resistant loop wire and pull wire to release the implantable medical device.