公开(公告)号：US10646118B2

公开(公告)日：2020-05-12

申请号：US14586312

申请日：2014-12-30

申请人： Regents of the University of Minnesota

发明人： Timothy M. Kowalewski ,  Darrin D. Beekman ,  Jack B. Stubbs ,  Paul Anthony Iaizzo ,  Gregory K. Peterson

IPC分类号： A61B5/00 ,  A61B18/24 ,  A61B5/02 ,  A61B18/00 ,  A61B5/107

摘要： Apparatus and methods for determining a type of a material in a region within a vascular system of a patient and/or a distance to the material are provided. At least one source fiber is provided that supplies light from a light source to a region within a vascular system of a patient. At least one return fiber is provided to receive light reflected from the region within the vascular system. At least one controller is provided to determine at least one property of the region within the vascular system from the reflected light, and to determine a type of a material in the region within the vascular system and/or an indication of a distance to the material. Techniques such as laser ablation may then be performed based on the determined material type and/or distance to remove unwanted buildup, deposits, etc., while avoiding harmful results such as tearing of tissue.

公开(公告)号：US20160184021A1

公开(公告)日：2016-06-30

申请号：US14586529

申请日：2014-12-30

申请人： Regents of the University of Minnesota

发明人： Timothy M. Kowalewski ,  Darrin D. Beekman ,  Jack B. Stubbs ,  Gregory K. Peterson ,  Sachin Bijadi ,  Arthur G. Erdman

IPC分类号： A61B18/24

CPC分类号： A61B18/245 ,  A61B2018/00345 ,  A61B2018/00577 ,  A61B2018/00642 ,  A61B2018/00666 ,  A61B2018/00702 ,  A61B2018/00785 ,  A61B2018/00875 ,  A61B2018/00898 ,  A61B2018/00904 ,  A61B2018/2211

摘要： Apparatus and methods for ablating material in a region within a vascular system of a patient are provided. A determination of at least one of a type of material in the region and an indication of a distance to the material in the region is made based on at least one property of the region determined from light reflected from the region. Light from a light source is transmitted in at least one of a plurality of optical fibers based on the determination, and at least some of the transmitted light is received at a first emitter disposed along a length of a laser catheter proximate a distal end thereof. The first emitter radially transmits the at least some of the light from the length of the laser catheter so that the light impinges upon and ablates the material through an opening in the length of the laser catheter.

摘要翻译： 提供了用于在患者的血管系统内的区域中烧蚀材料的装置和方法。 基于从该区域反射的光确定的区域的至少一个属性，确定该区域中的一种材料中的至少一种以及与该区域中材料的距离的指示。 基于该确定，来自光源的光在多个光纤中的至少一个传输，并且至少一些透射光在沿着其远端处的激光导管的长度设置的第一发射器处被接收。 第一发射器径向地透射来自激光导管的长度的至少一些光，使得光通过激光导管的长度上的开口撞击并消融材料。

公开(公告)号：US10646275B2

公开(公告)日：2020-05-12

申请号：US14586529

申请日：2014-12-30

申请人： Regents of the University of Minnesota

发明人： Timothy M. Kowalewski ,  Darrin D. Beekman ,  Jack B. Stubbs ,  Gregory K. Peterson ,  Sachin Bijadi ,  Arthur G. Erdman

IPC分类号： A61B18/24 ,  A61B18/00 ,  A61B18/22

摘要： Apparatus and methods for ablating material in a region within a vascular system of a patient are provided. A determination of at least one of a type of material in the region and an indication of a distance to the material in the region is made based on at least one property of the region determined from light reflected from the region. Light from a light source is transmitted in at least one of a plurality of optical fibers based on the determination, and at least some of the transmitted light is received at a first emitter disposed along a length of a laser catheter proximate a distal end thereof. The first emitter radially transmits the at least some of the light from the length of the laser catheter so that the light impinges upon and ablates the material through an opening in the length of the laser catheter.

公开(公告)号：US20160183804A1

公开(公告)日：2016-06-30

申请号：US14586312

申请日：2014-12-30

申请人： Regents of the University of Minnesota

发明人： Timothy M. Kowalewski ,  Darrin D. Beekman ,  Jack B. Stubbs ,  Paul Anthony Iaizzo ,  Gregory K. Peterson

IPC分类号： A61B5/00 ,  A61B18/24 ,  A61B5/02

CPC分类号： A61B5/0084 ,  A61B5/02007 ,  A61B5/1076 ,  A61B5/4887 ,  A61B5/7282 ,  A61B18/245 ,  A61B2018/00345 ,  A61B2018/00577 ,  A61B2018/00785

摘要： Apparatus and methods for determining a type of a material in a region within a vascular system of a patient and/or a distance to the material are provided. At least one source fiber is provided that supplies light from a light source to a region within a vascular system of a patient. At least one return fiber is provided to receive light reflected from the region within the vascular system. At least one controller is provided to determine at least one property of the region within the vascular system from the reflected light, and to determine a type of a material in the region within the vascular system and/or an indication of a distance to the material. Techniques such as laser ablation may then be performed based on the determined material type and/or distance to remove unwanted buildup, deposits, etc., while avoiding harmful results such as tearing of tissue.

摘要翻译： 提供了用于确定患者的血管系统内的区域中的材料的类型和/或与材料的距离的装置和方法。 提供至少一种源光纤，其将来自光源的光提供到患者的血管系统内的区域。 提供至少一个返回纤维以接收从血管系统内的区域反射的光。 提供至少一个控制器以从反射光确定血管系统内的区域的至少一个性质，并且确定血管系统内的区域中的材料的类型和/或与材料的距离的指示 。 然后可以基于确定的材料类型和/或距离来执行诸如激光烧蚀之类的技术，以消除不希望有的堆积物，沉积物等，同时避免诸如撕裂组织的有害结果。