公开(公告)号：US10799290B2

公开(公告)日：2020-10-13

申请号：US16159043

申请日：2018-10-12

Applicant: Covidien LP

Inventor： Joseph D. Brannan

IPC: A61B18/18 ,  A61B17/3211 ,  A61B18/00

Abstract: A surgical instrument is configured to concurrently dissect and coagulate tissue. The surgical instrument includes a handle and a shaft extending distally from the handle. The shaft includes an outer hypotube, a lumen coaxially-disposed within the hypotube and extending beyond a distal end thereof, a coaxial feedline coaxially-disposed within the lumen, and having an inner conductor and an outer conductor disposed coaxially about the inner conductor, and a coolant tube coaxially-disposed between the lumen and the coaxial feedline to form an inflow conduit and an outflow conduit. The instrument further includes a dissecting head assembly coupled to a distal end of the shaft. The dissecting head assembly includes a dielectric core having a substantially planar radiating surface and at least one non-radiating surface, a reflective coating disposed on the at least one non-radiating surface of the dielectric core, and a blade extending from the radiating surface.

公开(公告)号：US20200289200A1

公开(公告)日：2020-09-17

申请号：US16885411

申请日：2020-05-28

Applicant: Covidien LP

Inventor： Joseph D. Brannan ,  Casey M. Ladtkow ,  Darion R. Peterson ,  Eric W. Larson ,  William J. Dickhans ,  Richard A. Willyard ,  Jason A. Case

IPC: A61B18/18 ,  A61B34/10 ,  A61B34/00

Abstract: A microwave ablation device including a cable assembly configured to connect a microwave ablation device to an energy source and a feedline in electrical communication with the cable assembly. The microwave ablation device further includes a balun on an outer conductor of the feedline, and a temperature sensor on the balun sensing the temperature of the balun.

公开(公告)号：US10675089B2

公开(公告)日：2020-06-09

申请号：US14804656

申请日：2015-07-21

Applicant: COVIDIEN LP

Inventor： Joseph D. Brannan ,  Kaylen J. Haley ,  Kenlyn S. Bonn

IPC: A61B18/18 ,  A61B18/00

Abstract: A dielectric spacer for use during microwave ablation of tissue is disclosed. The dielectric spacer includes a housing having a predetermined thickness and a skin-contacting bottom surface. The housing is configured to be filled with a dielectric material having a predetermined dielectric permittivity. The housing is further configured to be placed on the tissue in proximity with at least one microwave antenna assembly, wherein the thickness and the dielectric permittivity are configured to shift a maximum voltage standing wave ratio of the at least one microwave antenna assembly.

公开(公告)号：US20190321098A1

公开(公告)日：2019-10-24

申请号：US16458287

申请日：2019-07-01

Applicant: COVIDIEN LP

Inventor： Richard A. Willyard ,  Joseph D. Brannan

IPC: A61B18/18

Abstract: A method of directing energy to tissue using a fluid-cooled antenna assembly includes the initial step of providing an energy applicator. The energy applicator includes an antenna assembly and a hub providing at least one coolant connection to the energy applicator. The method also includes the steps of providing a coolant supply system including a fluid-flow path fluidly-coupled to the hub for providing fluid flow to the energy applicator, positioning the energy applicator in tissue for the delivery of energy to tissue when the antenna assembly is energized, and providing a thermal-feedback-controlled rate of fluid flow to the antenna assembly when energized using a feedback control system operably-coupled to a flow-control device disposed in fluid communication with the fluid-flow path.

公开(公告)号：US10448862B2

公开(公告)日：2019-10-22

申请号：US14469757

申请日：2014-08-27

Applicant: COVIDIEN LP

Inventor： Joshua B. Stopek ,  Joseph D. Brannan ,  William J. Dickhans ,  Casey M. Ladtkow

IPC: A61B5/00 ,  A61B5/08 ,  A61B5/06 ,  A61B5/113 ,  A61B1/267

Abstract: A system for light based interrogation of a lung includes a memory, an electromagnetic (EM) board, an extended working channel (EWC), an EM sensor, a light source, a light receptor and a processor. The memory stores a 3D model and a pathway plan of a luminal network and the EM board generates an EM field. The EWC navigates a luminal network of a patient toward a target in accordance with the pathway plan and the EM sensor extends distally from a distal end of the EWC and is configured to sense the EM field. The light source is located at or around the EWC and is configured to emit light, and the light receptor is located at or around the EWC and is configured to sense reflected light from airway of the luminal network. The processor converts the reflected light into light based data and identifies a type of tissue.

公开(公告)号：US10363098B2

公开(公告)日：2019-07-30

申请号：US16158777

申请日：2018-10-12

Applicant: Covidien LP

Inventor： Joseph D. Brannan ,  Casey M. Ladtkow ,  Darion R. Peterson ,  Eric W. Larson ,  William J. Dickhans ,  Richard A. Willyard ,  Jason A. Case

IPC: A61B18/00 ,  A61B18/18 ,  A61B34/20 ,  A61B6/03 ,  A61B34/10 ,  A61B90/00 ,  A61B34/00

Abstract: An ablation system including an image database storing a plurality of computed tomography (CT) images of a luminal network and a navigation system enabling, in combination with an endoscope and the CT images, navigation of a locatable guide and an extended working channel to a point of interest. The system further includes one or more fiducial markers, placed in proximity to the point of interest and a percutaneous microwave ablation device for applying energy to the point of interest.

公开(公告)号：US10314652B2

公开(公告)日：2019-06-11

申请号：US15161382

申请日：2016-05-23

Applicant: COVIDIEN LP

Inventor： Joseph D. Brannan

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

Abstract: A microwave delivery device, including a coaxial feedline having an inner conductor, an inner dielectric insulator coaxially disposed about the inner conductor, and an outer conductor coaxially disposed about the inner dielectric, and a radiating portion operably coupled to a distal end. The radiating portion includes a radiating portion inner conductor operable coupled to and extending from a distal end of the coaxial feedline inner conductor, a shielding outer conductor helically wrapped about the radiating portion inner conductor and operably coupled to the coaxial feedline outer conductor; and a shielding dielectric positioned between the radiating portion inner conductor and the shielding outer conductor wherein the width of the shielding outer conductor varies according to the longitudinal position thereof along the coaxial feedline inner conductor, and a cap operably coupled to a distal end of the radiating portion inner conductor and the shielding outer conductor to provide an electrical connection therebetween.

公开(公告)号：US10226296B2

公开(公告)日：2019-03-12

申请号：US14980277

申请日：2015-12-28

Applicant: COVIDIEN LP

Inventor： Joseph D. Brannan ,  Casey M. Ladtkow

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

Abstract: A coupler for coupling a flexible coaxial cable, a fluid cooling system and the outer sheath of a catheter, the coupler including a fluid coupler body having a fluid inlet, a fluid outlet, a bypass bulb, an outer sheath, and a fluid sealing system housed in the fluid coupler body. The fluid sealing system includes a distal sealing diaphragm and a proximal sealing diaphragm configured to form a fluid-tight seal with the fluid coupler body.

公开(公告)号：US10179023B2

公开(公告)日：2019-01-15

申请号：US15158255

申请日：2016-05-18

Applicant: COVIDIEN LP

Inventor： Casey M. Ladtkow ,  Joseph D. Brannan

IPC: A61B18/14 ,  A61B18/00 ,  A61B17/32

Abstract: An electrosurgical instrument is provided and includes a housing configured to connect to a source of bipolar electrosurgical energy and an electrode body coupled to the elongated housing. The electrode body includes an electrode face, first and second bipolar electrodes and a blade. The electrode face is formed on the distal end of the electrode body and includes a longitudinal axis and a transverse axis therethrough. The first and second electrodes have a leading edge and a trailing edge, are formed on opposite sides of the longitudinal axis and connect to opposed electrical potentials. The blade is positioned between the electrodes with at least a portion of the blade extending beyond the electrode face.

公开(公告)号：US10098565B2

公开(公告)日：2018-10-16

申请号：US14469718

申请日：2014-08-27

Applicant: Covidien LP

Inventor： Joseph D. Brannan ,  William J. Dickhans ,  Casey M. Ladtkow ,  Darion R. Peterson

IPC: A61B5/00 ,  A61B5/06 ,  A61B8/12 ,  A61B8/00 ,  A61B8/08 ,  A61B1/267 ,  A61B5/113

Abstract: A system for ultrasound interrogation of a lung includes a memory, an electromagnetic (EM) board, an extended working channel (EWC), an EM sensor, a US transducer, and a processor. The memory stores a three dimensional (3D) model, a pathway plan for navigating a luminal network. An EM board generates an EM field. The EWC is configured to navigate the luminal network of a patient toward a target following the pathway plan and the EM sensor extends distally from the EWC and senses the EM field. The US transducer extends distally from a distal end of the EWC and generates US waves and receives US waves reflected from the luminal network and the processor processes the sensed EM field to synchronize a location of the EM sensor in the 3D model, to process the reflected US waves to generate images, or to integrate the generated images with the 3D model.