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公开(公告)号：US20210275249A1
公开(公告)日：2021-09-09
申请号：US17190921
申请日：2021-03-03
IPC分类号： A61B18/26
摘要： A catheter system includes a power source, a controller, and a light guide. The power source generates a plurality of energy pulses. The controller controls the power source so that the plurality of energy pulses cooperate to produce a composite energy pulse having a composite pulse shape. The light guide receives the composite energy pulse. The light guide emits light energy in a direction away from the light guide to generate a plasma pulse away from the light guide. The power source can be a laser and the light guide can be an optical fiber. Each of the energy pulses has a pulse width, and the energy pulses are added to one another so that the composite energy pulse has a pulse width that is longer than the pulse width of any one of the energy pulses. At least two of the energy pulses can have the same wavelength as or a different wavelength from one another.
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公开(公告)号：US11717139B2
公开(公告)日：2023-08-08
申请号：US16874065
申请日：2020-05-14
IPC分类号： A61B18/20 , A61B5/1459 , A61B1/00 , A61B5/027 , A61B17/00
CPC分类号： A61B1/00082 , A61B5/027 , A61B5/1459 , A61B18/20 , A61B2017/00057
摘要： A catheter system for treating a treatment site within or adjacent to a blood vessel includes a power source, a light guide and a plasma target. In various embodiments, the light guide receives power from the power source. The light guide has a distal tip, and the light guide emits light energy in a direction away from the distal tip. The plasma target is spaced apart from the distal tip of the light guide by a target gap distance. The plasma target is configured to receive light energy from the light guide so that a plasma bubble is generated at the plasma target. The power source can be a laser and the light guide can be an optical fiber. In certain embodiments, the catheter system can also an inflatable balloon that encircles the distal tip of the light guide. The plasma target can be positioned within the inflatable balloon. The target gap distance can be greater than 1 μm. The plasma target can have a target face that receives the light energy from the light guide. The target face can be angled relative to a direction the light energy is emitted to the plasma target. The plasma target 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.
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3.发明公开公开(公告)号：US20230338088A1
公开(公告)日：2023-10-26
申请号：US18346122
申请日：2023-06-30
IPC分类号： A61B18/24
CPC分类号： A61B18/245 , A61B2018/00065
摘要： 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. 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 plasma target (242) can have a target face (1672) that receives the light energy (243) from the light guide (122). 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.
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公开(公告)号：US20150360009A1
公开(公告)日：2015-12-17
申请号：US14738208
申请日：2015-06-12
发明人： Roger McGowan , Kim Davis , Rachel Japuntich , Umang Anand , Raghav Goel , Peter M. Pollak , Douglas Pennington , Atta Behfar , Charles J. Bruce , Paul A. Friedman , Bruce D. Johnson , Lyle D. Joyce , Lyle J. Olson
CPC分类号： A61M39/22 , A61B17/12031 , A61B17/1204 , A61B17/12109 , A61B17/12136 , A61B2017/00336 , A61B2017/00853 , A61M1/3666 , A61M5/007 , A61M25/0023 , A61M25/0097 , A61M25/0133 , A61M31/005 , A61M2025/0024 , A61M2025/1052
摘要： Multifunctional occlusion crossover devices include features to improve the crossover balloon occlusion technique used during transcatheter aortic valve replacement procedures, for example. The devices include a compliant balloon incorporated with a highly flexible and lubricous sheath system. The balloon is capable of safely occluding from the common iliac artery and down to an access site in the femoral artery. The devices can simplify the CBOT technique and replace multiple devices currently used for the procedure.
摘要翻译： 多功能闭塞交叉装置包括用于改善经导管主动脉瓣置换手术中使用的交叉球囊阻塞技术的特征。 这些装置包括结合有高柔性和润滑护套系统的顺应性球囊。 气球能够从髂总动脉和股动脉进入位置安全地闭塞。 这些设备可以简化CBOT技术并替换当前用于该过程的多个设备。
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