- Maple Grove MN, US Daniel Lee Krautkremer - Plymouth MN, US Haiping Shao - Plymouth MN, US Roger W. McGowan - Otsego MN, US
International Classification:
A61B 18/26
Abstract:
A catheter system includes a catheter having an elongate shaft, a balloon and a light guide. The balloon expands from a collapsed configuration to a first expanded configuration. The light guide is disposed along the elongate shaft and is in optical communication with a light source and a balloon fluid. A first portion of the light guide extends into a recess defined by the elongate shaft. A protection structure is disposed within the recess and is in contact with the first portion of the light guide. The light source provides pulses of light to the balloon fluid, thereby initiating plasma formation and rapid bubble formation within the balloon, thereby imparting pressure waves upon a treatment site. The protection structure can provide structural protection from the pressure waves to the first portion of the light guide.
Focusing Element For Plasma System To Disrupt Vascular Lesions
- Maple Grove MN, US Daniel Lee Krautkremer - Plymouth MN, US Haiping Shao - Plymouth MN, US Roger W. McGowan - Otsego MN, US
International Classification:
A61M 25/01 A61M 25/09
Abstract:
A catheter system for pressure wave and inertial impulse generation for intravascular lesion disruption at a treatment site includes a catheter including an elongate shaft and balloon coupled to the elongate shaft. The catheter system includes a light guide disposed along the elongate shaft and at least partially within the balloon, where the light guide is in optical communication with a light source and a balloon fluid. The catheter can include a first focusing element located at a distal portion of the light guide and in optical communication with the light source. The first focusing element can direct light from within the light guide to a first location at a first distance away from the distal portion of the light guide to initiate plasma formation in the balloon fluid away from the distal portion and to cause rapid bubble formation, thereby imparting pressure waves at the treatment site.
Side Light Direction Plasma System To Disrupt Vascular Lesions
- Maple Grove MN, US Daniel Lee Krautkremer - Plymouth MN, US Haiping Shao - Plymouth MN, US Roger W. McGowan - Otsego MN, US
International Classification:
A61M 25/01 A61M 25/09 A61M 25/00
Abstract:
A catheter system for pressure wave and inertial impulse generation for intravascular lesion disruption includes a balloon coupled to an elongate shaft, and a first and second light guide disposed along the elongate shaft. The first and second light guides each include a diverting feature in optical communication with at least one light window to direct light to exit each light guide toward a side surface portion thereof and toward the balloon. A method includes expanding the balloon from a collapsed configuration to a first expanded configuration, and activating a light source in optical communication with each light guide to provide sub-millisecond pulses of light to the diverting features, thereby inducing plasma formation in a balloon fluid, causing rapid bubble formation, and imparting pressure waves upon the treatment site.
- Maple Grove MN, US Robert N. Squire - Maple Grove MN, US Daniel Lee Krautkremer - Plymouth MN, US Jeffrey S. Lindquist - Maple Grove MN, US Daniel James Horn - Shoreview MN, US Katherine M. Prindle - Robbinsdale MN, US
Assignee:
BOSTON SCIENTIFIC SCIMED, INC. - Maple Grove MN
International Classification:
A61M 25/10 A61M 25/00
Abstract:
Medical devices and methods for making and using medical devices are disclosed. An example medical device may include a catheter. The catheter may include a catheter shaft and a balloon. The balloon may comprise a cone portion, a waist portion, and a body portion. A fiber braid may be disposed along the balloon. An inner surface of the waist portion may be thermally bonded to an outer surface of the catheter shaft and an inner surface of the fiber braid may be adhesively bonded to an outer surface of the waist portion.
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