公开(公告)号：US20150282859A1

公开(公告)日：2015-10-08

申请号：US14747702

申请日：2015-06-23

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： ROBERT F. BENCINI ,  FRANK INGLE ,  JOSEF V. KOBLISH ,  REBECCA TIN ,  JAMES MAZZONE ,  BYRON CHUN ,  DAVID LAWRENCE

IPC: A61B18/02

CPC classification number: A61B18/02 ,  A61B5/0422 ,  A61B2018/00017 ,  A61B2018/00023 ,  A61B2018/0022 ,  A61B2018/00714 ,  A61B2018/00791 ,  A61B2018/00797 ,  A61B2018/0212 ,  A61B2018/0262

Abstract: In some implementations, a method of ablating body tissue includes (a) locating an inflatable balloon portion of a cryotherapy balloon catheter at a treatment site internal to a patient's body, and inflating the inflatable balloon portion; (b) employing electrodes that are disposed on an expandable surface of the inflatable balloon portion to electrically characterize body tissue at the treatment site; (c) ablating the body tissue by supplying a cryotherapy agent to the inflatable balloon portion to cool the body tissue to a therapeutic temperature; (d) employing the electrodes to determine whether the ablating caused desired electrical changes in the body tissue; and (e) repeating (c) and (d) when it is determined that the ablating did not cause the desired electrical changes.

Abstract translation: 在一些实施方案中，消融身体组织的方法包括（a）将冷冻治疗气囊导管的可充气球囊部分定位在患者身体内部的治疗部位处，并使可膨胀气囊部分膨胀; （b）使用设置在所述可膨胀气囊部分的可膨胀表面上的电极来电性地表征所述治疗部位的身体组织; （c）通过向所述可充气球囊部分供应冷冻治疗剂来将所述身体组织冷却至治疗温度来烧蚀所述身体组织; （d）使用电极来确定烧蚀是否引起人体组织中所需的电变化; 和（e）重复（c）和（d）当确定烧蚀不引起所需的电气变化时。

公开(公告)号：US20140276758A1

公开(公告)日：2014-09-18

申请号：US14209779

申请日：2014-03-13

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： DAVID LAWRENCE ,  ELIZA LAWRENCE ,  ISAAC J. KIM

IPC: A61B18/14 ,  A61B18/18

CPC classification number: A61B18/1492 ,  A61B5/042 ,  A61B18/18 ,  A61B2018/00029 ,  A61B2018/00351 ,  A61B2018/00839

Abstract: Medical devices and methods for using medical devices are disclosed. An example medical device may include an open-irrigated ablation catheter. The open-irrigated ablation catheter may include a catheter body, an electrode tip body with irrigation ports at a distal end, and a coolant conduit. The distal end of the coolant conduit may extend into a proximal portion of the electrode tip body. Fluid flow from the coolant conduit may be diverted proximally and/or towards the wall of the electrode tip body by one or more openings proximal of a closed distal end of the conduit or by a structure blocking and diverting flow from an open distal end of the conduit.

Abstract translation: 公开了用于使用医疗装置的医疗装置和方法。 示例性的医疗装置可以包括开放灌洗的消融导管。 开放式消融导管可以包括导管主体，具有在远端具有冲洗口的电极末端体和冷却剂导管。 冷却剂导管的远端可以延伸到电极末端体的近端部分。 来自冷却剂管道的流体流可以通过导管的封闭远端近侧的一个或多个开口向近侧和/或朝着电极末端主体的壁转移，或者通过结构阻止和转向来自所述导管的开放远端的流动 导管。