EP 3986310 A1 20220427 - PLASMA CREATION VIA NONAQUEOUS OPTICAL BREAKDOWN OF LASER PULSE ENERGY FOR BREAKUP OF VASCULAR CALCIUM
Title (en)
PLASMA CREATION VIA NONAQUEOUS OPTICAL BREAKDOWN OF LASER PULSE ENERGY FOR BREAKUP OF VASCULAR CALCIUM
Title (de)
PLASMAERZEUGUNG DURCH NICHTWÄSSRIGEN OPTISCHEN AUFBRUCH VON LASERPULSENERGIE ZUM AUFBRECHEN VON VASKULÄREM CALCIUM
Title (fr)
CRÉATION DE PLASMA PAR RUPTURE OPTIQUE NON AQUEUSE D'ÉNERGIE PULSÉE LASER POUR FRAGMENTATION DE CALCIUM VASCULAIRE
Publication
Application
Priority
- US 201962863506 P 20190619
- US 202062965069 P 20200123
- US 202016874065 A 20200514
- US 202016884257 A 20200527
- US 2020036107 W 20200604
Abstract (en)
[origin: WO2020256949A1] A catheter system (100) for treating a treatment site (106) within or adjacent to a blood vessel (108) includes a power source (124), a light guide (122) and a plasma target (242). In various embodiments, the light guide (122) receives power from the power source (124). The light guide (122) has a distal tip (244), and the light guide (122) emits light energy (243) in a direction away from the distal tip (244). The plasma target (242) is spaced apart from the distal tip (244) of the light guide (122) by a target gap distance (245). The plasma target (242) is configured to receive light energy (243) from the light guide (122) so that a plasma bubble (234) is generated at the plasma target (242). The power source (124) can be a laser and the light guide (122) can be an optical fiber. In certain embodiments, the catheter system (100) can also an inflatable balloon (104) that encircles the distal tip (244) of the light guide (122). The plasma target (242) can be positioned within the inflatable balloon (104). The target gap distance (245) can be greater than 1 μm. The plasma target (242) can have a target face (1672) that receives the light energy (243) from the light guide (122). The target face (1672) can be angled relative to a direction the light energy (243) is emitted to the plasma target (242). The plasma target (242) can be formed from one or more of tungsten, tantalum, platinum, molybdenum niobium, iridium, magnesium oxide, beryllium oxide, tungsten carbide, titanium nitride, titanium carbonitride and titanium carbide.
IPC 8 full level
A61B 18/24 (2006.01); A61B 17/00 (2006.01); A61B 17/22 (2006.01); A61B 18/00 (2006.01); A61B 18/26 (2006.01)
CPC (source: EP)
A61B 17/22012 (2013.01); A61B 18/245 (2013.01); A61B 18/26 (2013.01); A61B 2017/22025 (2013.01); A61B 2017/22051 (2013.01); A61B 2017/22062 (2013.01); A61B 2018/00184 (2013.01); A61B 2018/0022 (2013.01); A61B 2018/00285 (2013.01); A61B 2018/00422 (2013.01); A61B 2018/2211 (2013.01); A61B 2018/2216 (2013.01); A61B 2018/2261 (2013.01); A61B 2018/2266 (2013.01); A61B 2018/2272 (2013.01); A61B 2018/2277 (2013.01); A61B 2018/2294 (2013.01); A61B 2018/263 (2013.01); A61B 2018/266 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020256949 A1 20201224; CA 3144246 A1 20201224; CA 3144246 C 20240305; CN 114340532 A 20220412; EP 3986310 A1 20220427; JP 2022537997 A 20220831; JP 7408696 B2 20240105
DOCDB simple family (application)
US 2020036107 W 20200604; CA 3144246 A 20200604; CN 202080058717 A 20200604; EP 20747508 A 20200604; JP 2021575065 A 20200604