公开(公告)号：US11612429B2

公开(公告)日：2023-03-28

申请号：US15995037

申请日：2018-05-31

Applicant: Covidien LP

Inventor： Joseph D. Brannan ,  Anthony B. Ross ,  Casey M. Ladtkow

IPC: A61B18/14 ,  A61B18/12 ,  A61B18/00 ,  A61B90/00 ,  A61M5/158

Abstract: Ablation systems and methods detect and address distortion caused by a variety of factors. A method includes measuring a temperature curve at target tissue; applying ablation energy to the target tissue; determining a peak temperature on the temperature curve; if the peak temperature is greater than the predetermined peak temperature, determining a time at which the temperature curve crosses to a lower temperature; and if the determined time is greater than a predetermined time, generating a message indicating that the target tissue was successfully ablated. Another method includes determining a distance between a remote temperature probe and an ablation probe, applying ablation energy to target tissue, measuring temperature at the remote temperature probe, estimating ablation size based on the determined distance and the temperature measured by the remote temperature probe, and determining whether the target tissue is successfully ablated based on the estimated ablation size.

公开(公告)号：US11596477B2

公开(公告)日：2023-03-07

申请号：US16159111

申请日：2018-10-12

Applicant: Covidien LP

Inventor： Joseph D. Brannan

IPC: A61B34/10 ,  A61B18/22 ,  A61B18/18 ,  A61B90/00 ,  A61B34/00 ,  A61B18/12 ,  A61B18/00 ,  A61B18/16 ,  A61B18/02

Abstract: A system for recording or recalling ablation information includes a workstation, and control circuitry. The workstation may include a display, a user input device, and a memory. The workstation may be configured to be in electrical communication with an ablation device. The control circuitry may be in electrical communication with the ablation device and the memory. The control circuitry may be configured to receive input associated with an ablation procedure performed by the ablation device, and associate the input with an anatomical structure of the patient.

公开(公告)号：US20220096155A1

公开(公告)日：2022-03-31

申请号：US17549001

申请日：2021-12-13

Applicant: Covidien LP

Inventor： William J. Dickhans ,  John J. Halbur ,  Joseph D. Brannan

IPC: A61B18/14

Abstract: A cable assembly includes a rigid portion, a flexible central portion, and a radiating portion. The rigid portion is configured to couple to a source of electrosurgical energy and to prevent fluid ingress towards the source of electrosurgical energy. The flexible central portion extends from the rigid portion and includes an inner conductor, a dielectric disposed about the inner conductor, and a conductive braid disposed about the dielectric. The radiating portion extends from the central portion and is configured to deliver electrosurgical energy to tissue.

公开(公告)号：US11259860B2

公开(公告)日：2022-03-01

申请号：US15714593

申请日：2017-09-25

Applicant: COVIDIEN LP

Inventor： Joseph D. Brannan

IPC: A61B18/12 ,  A61B18/18 ,  A61B18/14 ,  A61B17/00 ,  A61B18/00 ,  A61B90/00

Abstract: A surgical system includes a power supply, a power stage coupled to the power supply for converting electric energy to a power signal, an audio output device, a sensor, and a controller coupled to the power supply, the power stage, and the audio output device. The controller is operably coupled to the sensor. The power stage is configured to transmit the power signal to a surgical instrument such as an electrosurgical instrument or a microwave instrument. The sensor may be disposed on the surgical instrument. The controller causes the audio output device to output sensory feedback during operation of the surgical generator based on sensor signals received from the sensor during a surgical procedure.

公开(公告)号：US11234765B2

公开(公告)日：2022-02-01

申请号：US16524674

申请日：2019-07-29

Applicant: Covidien LP

Inventor： Joseph D. Brannan ,  Jason A. Case ,  Casey M. Ladtkow ,  Kurt R. Smith

IPC: A61B18/18 ,  A61N5/02 ,  A61B17/00 ,  A61B18/14 ,  A61B18/00 ,  A61B90/10

Abstract: A method for forming a resonating structure within a body lumen, the method including advancing a flexible microwave catheter into a body lumen of a patient, the flexible microwave catheter including a radiating portion at the distal end of the flexible microwave catheter, the radiating portion configured to receive microwave energy, and at least one centering device proximate the radiating portion configured to deploy radially outward from the flexible microwave catheter; positioning the radiating portion near tissue of interest; deploying the at least one centering device radially outward from the flexible microwave catheter within the body lumen such that a longitudinal axis of the radiating portion is substantially parallel with and at a fixed distance from a longitudinal axis of the body lumen near the targeted tissue; and delivering microwave energy to the radiating portion such that a circumferentially balanced resonating structure is formed with the body lumen.

公开(公告)号：US20210369215A1

公开(公告)日：2021-12-02

申请号：US17276901

申请日：2019-12-03

Applicant: Covidien LP

Inventor： Joseph D. Brannan

IPC: A61B6/03 ,  H01Q3/02 ,  A61B5/06 ,  A61B6/00

Abstract: An EM device is provided that includes an antenna assembly for radiating at least one electromagnetic field for electromagnetic navigation. The EM device also includes a moving arrangement coupled to the antenna assembly and configured to either move the antenna assembly toward and away from a CT scan plane or move a patient toward and away from the antenna assembly. An operating system is provided that includes a CT scanner defining a CT scan plane, and a patient table housing an antenna assembly and a moving arrangement. A method is provided that includes engaging a moving arrangement to move a patient, activating the CT scanner, and activating the antenna of an electromagnetic navigation system.

公开(公告)号：US10987152B2

公开(公告)日：2021-04-27

申请号：US15667745

申请日：2017-08-03

Applicant: COVIDIEN LP

Inventor： Joseph D. Brannan

IPC: A61B18/18 ,  A61B18/08 ,  A61B18/14 ,  A61B18/00

Abstract: An ablation device includes a feedline including an inner conductor having a distal end, an outer conductor coaxially disposed around the inner conductor, and a dielectric material disposed therebetween, an elongated electrically-conductive member longitudinally disposed at the distal end of the inner conductor and having a proximal end, a first balun structure disposed over a first portion of the outer conductor and positioned so that a distal end of the first balun structure is located at a first distance from the proximal end of the electrically-conductive member and a second balun structure disposed over a second portion of the outer conductor and positioned so that a distal end of the second balun structure is located at a second distance from the proximal end of the electrically-conductive member.

公开(公告)号：US20210077189A1

公开(公告)日：2021-03-18

申请号：US17034011

申请日：2020-09-28

Applicant: Covidien LP

Inventor： Joseph D. Brannan

IPC: A61B18/18

Abstract: Microwave applicators are disclosed which include a first transmission line segment, a second transmission line segment, and a third transmission line segment. The first transmission line segment includes a first inner conductor, a first dielectric disposed on the first inner conductor, and a first outer conductor disposed on the first dielectric. The second transmission line segment includes a second inner conductor, a second dielectric disposed on the second inner conductor, and a second outer conductor disposed on the second dielectric. The third transmission line segment includes a third inner conductor disposed on the third inner conductor, a third outer conductor disposed on the proximal end of the third dielectric. The impedance of the second transmission line segment can be adjusted by adjusting the length of the third transmission line segment.

公开(公告)号：US10743934B2

公开(公告)日：2020-08-18

申请号：US16113540

申请日：2018-08-27

Applicant: Covidien LP

Inventor： Joseph D. Brannan ,  Kyle R. Rick

IPC: A61B18/18 ,  A61B18/00 ,  H01Q9/16

Abstract: A microwave antenna assembly is disclosed. The antenna assembly includes a feedline having an inner conductor, an outer conductor and an inner insulator disposed therebetween. A radiating portion is also included having an unbalanced dipole antenna including a proximal portion and a distal portion that are of different lengths. The proximal portion includes at least a portion of the inner conductor and the inner insulator and the distal portion includes a conductive member.

公开(公告)号：US10736694B2

公开(公告)日：2020-08-11

申请号：US15382954

申请日：2016-12-19

Applicant: COVIDIEN LP

Inventor： Mani N. Prakash ,  Francesca Rossetto ,  Joseph D. Brannan

IPC: A61B18/18 ,  A61B18/14 ,  A61B18/00

Abstract: A device for directing energy to a target volume of tissue includes an antenna assembly and an elongated body member. The elongated body member includes a proximal end portion and a distal end portion, wherein the proximal and distal end portions define a longitudinal axis. The elongated body member has a chamber defined therein that extends along the longitudinal axis, and a body wall surrounding the chamber. An antenna assembly is disposed in the chamber. The elongated body member also includes an opening in the body wall to allow energy radiated from the antenna assembly to transfer into the target volume of tissue.