公开(公告)号：US20170354450A1

公开(公告)日：2017-12-14

申请号：US15688598

申请日：2017-08-28

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： BYRON CHUN

IPC: A61B18/02 ,  A61B18/00

CPC classification number: A61B18/02 ,  A61B2018/00202 ,  A61B2018/00214 ,  A61B2018/0022 ,  A61B2018/0212

Abstract: A cryoablation catheter assembly includes a catheter that defines at least one coolant outtake region and receives a rotatable guide tube and a coolant transfer tube. The coolant transfer tube receives and transfers coolant from a coolant source to a distal end of the coolant transfer tube. An expansion element is coupled to a distal portion of the catheter and defines an inner expansion-element space. The inner expansion-element space is in fluid communication with the at least one coolant outtake region and the distal end of the coolant transfer tube. A distal end of the expansion element couples to the guide tube. A rotation system is coupleable to, or coupled to, a proximal end of the guide tube and rotates the distal end of the expansion element relative to the proximal end of the expansion element by rotating the guide tube relative to the catheter.

公开(公告)号：US20200179028A1

公开(公告)日：2020-06-11

申请号：US16730541

申请日：2019-12-30

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： BYRON CHUN

IPC: A61B18/02

Abstract: A cryoablation catheter assembly includes a catheter that defines at least one coolant outtake region and receives a rotatable guide tube and a coolant transfer tube. The coolant transfer tube receives and transfers coolant from a coolant source to a distal end of the coolant transfer tube. An expansion element is coupled to a distal portion of the catheter and defines an inner expansion-element space. The inner expansion-element space is in fluid communication with the at least one coolant outtake region and the distal end of the coolant transfer tube. A distal end of the expansion element couples to the guide tube. A rotation system is coupleable to, or coupled to, a proximal end of the guide tube and rotates the distal end of the expansion element relative to the proximal end of the expansion element by rotating the guide tube relative to the catheter.

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：US20140228832A1

公开(公告)日：2014-08-14

申请号：US14257622

申请日：2014-04-21

Applicant: BOSTON SCIENTIFIC SCIMED, INC.

Inventor： BYRON CHUN

IPC: A61B18/02

CPC classification number: A61B18/02 ,  A61B2018/00202 ,  A61B2018/00214 ,  A61B2018/0022 ,  A61B2018/0212

Abstract: A cryoablation catheter assembly includes a catheter that defines at least one coolant outtake region and receives a rotatable guide tube and a coolant transfer tube. The coolant transfer tube receives and transfers coolant from a coolant source to a distal end of the coolant transfer tube. An expansion element is coupled to a distal portion of the catheter and defines an inner expansion-element space. The inner expansion-element space is in fluid communication with the at least one coolant outtake region and the distal end of the coolant transfer tube. A distal end of the expansion element couples to the guide tube. A rotation system is coupleable to, or coupled to, a proximal end of the guide tube and rotates the distal end of the expansion element relative to the proximal end of the expansion element by rotating the guide tube relative to the catheter.

Abstract translation: 冷冻消融导管组件包括限定至少一个冷却剂出口区域并且接收可旋转引导管和冷却剂传送管的导管。 冷却剂传送管接收并将冷却剂从冷却剂源传递到冷却剂传送管的远端。 膨胀元件联接到导管的远端部分并限定内部膨胀元件空间。 内部膨胀元件空间与冷却剂输送管的至少一个冷却剂出口区域和远端流体连通。 膨胀元件的远端连接到导管。 旋转系统可耦合到或者耦合到引导管的近端，并且通过相对于导管旋转引导管而使膨胀元件的远端相对于膨胀元件的近端旋转。