公开(公告)号：WO2018165810A1

公开(公告)日：2018-09-20

申请号：PCT/CN2017/076392

申请日：2017-03-13

Applicant: COVIDIEN LP ,  LI, Jiagui

Inventor： LI, Jiagui ,  DICKHANS, William, J. ,  LIN, Zhiwei

IPC: A61B18/18

Abstract: A microwave ablation antenna assembly (10) including a coaxial cable (14) terminating in a radiating section (16), a first tubular member (18) circumscribing the coaxial cable (14) and spaced therefrom to permit fluid flow therebetween, and a second tubular member (20) circumscribing the first tubular member (18) and spaced therefrom to permit fluid flow therebetween. The microwave ablation antenna assembly (10) further includes a hub (26) configured to receive the coaxial cable (14), first tubular member (18), and second tubular member (20), the hub (26) including a fluid inflow chamber (36) and a fluid outflow chamber (38) and an integrated hub divider (40) and hub cap (28) separating the fluid inflow chamber (36) from the fluid outflow chamber (38) and prohibiting fluid flow between the inflow chamber (36) and outflow chamber (38) except via the spacing between the coaxial cable (14) and the first tubular member (18) and between the first tubular member (18) and the second tubular member (20).

公开(公告)号：WO2020006661A1

公开(公告)日：2020-01-09

申请号：PCT/CN2018/094069

申请日：2018-07-02

Applicant: COVIDIEN LP ,  LI, Jiagui

Inventor： LI, Jiagui ,  DICKHANS, William J. ,  LIN, Zhiwei ,  PETERSON, Darion ,  ZHANG, Wei

IPC: A61B18/18

Abstract: A microwave ablation device(10) includes a cable assembly(13), a feedline(40), and a transmission line(16). The cable assembly(13) is configured to connect to an energy source. The feedline(40) is in electrical communication with the cable assembly(13) and includes a first temperature sensor(50). The first temperature sensor(50) is disposed at a first axial location along a length of the feedline(40) and is configured to sense a temperature at the first axial location. The first temperature sensor(50) extends along the length of the feedline(40). The transmission line(16) extends from the first temperature sensor(50) and is disposed parallel and in contact with an outer conductor(48) of the feedline(40).