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公开(公告)号：US11071566B2
公开(公告)日：2021-07-27
申请号：US15670205
申请日：2017-08-07
Applicant: COVIDIEN LP
Inventor： Joseph D. Brannan
Abstract: A trocar assembly including an obturator, an access cannula, and a reservoir is provided. The access cannula defines a lumen therethrough configured to selectively receive the obturator. The reservoir is configured to be selectively coupled to the obturator such that the reservoir is in fluid communication with a hollow interior portion of the obturator. An obturator is also provided including an elongate body and a connection point. The elongate body extends between proximal and distal portions and is configured to be received within an access cannula. The elongate body defines a hollow interior portion therein. The connection point is disposed on an exterior portion of the elongate body and is configured to be selectively coupled to a fluid reservoir. Rapid expansion of fluid within the hollow interior portion causes tissue in contact with the access cannula to freeze thereto. A method of performing surgery is also provided.
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公开(公告)号：US11058488B2
公开(公告)日：2021-07-13
申请号：US15696368
申请日：2017-09-06
Applicant: COVIDIEN LP
Inventor： Joseph D. Brannan
Abstract: An energy-delivery device suitable for delivery of energy to tissue includes an antenna assembly, a chamber defined about the antenna assembly, and a cable having a proximal end suitable for connection to an electrosurgical energy source. The energy-delivery device also includes a flexible, fluid-cooled shaft coupled in fluid communication with the chamber. The flexible, fluid-cooled shaft is configured to contain a length of the cable therein and adapted to remove heat along the length of the cable during delivery of energy to the antenna assembly.
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公开(公告)号：US10966774B2
公开(公告)日：2021-04-06
申请号：US15970474
申请日：2018-05-03
Applicant: Covidien LP
Inventor： Eric W. Larson , Darion R. Peterson , Joseph D. Brannan
Abstract: An energy delivery device cooling system includes a reservoir connector assembly and an elongate member. The elongate member has first and second lumens in fluid communication with the reservoir. The first lumen includes an outflow port and the second lumen includes a return port each in fluid communication with the reservoir. The device further includes a tubing system having a first end and a second end. The first end connected in fluid communication with the outflow port and the second end in fluid communication with the return port. The second end configured to return a fluid to the reservoir. The tubing system connects to an energy delivery device to cool the fluid.
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44.发明申请公开(公告)号：US20210007802A1
公开(公告)日：2021-01-14
申请号：US17035842
申请日：2020-09-29
Applicant: Covidien LP
Inventor： Joseph D. Brannan , Eric W. Larson
IPC: A61B18/18
Abstract: A microwave ablation system includes a first cannula, a trocar insertable through the first cannula and configured to facilitate insertion of the first cannula into a target tissue, and a microwave antenna assembly configured to interlock with the first cannula, the microwave antenna assembly including a coaxial feedline having a radiating section formed thereon, the microwave antenna configured to be inserted into the first cannula. The microwave ablation system further includes an actuator operatively connected to one of the first cannula or microwave antenna assembly. Operation of the actuator between a first position and a second position exposes the radiating section of the microwave antenna assembly from a distal portion of the first cannula.
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公开(公告)号：US10856940B2
公开(公告)日：2020-12-08
申请号：US15058485
申请日：2016-03-02
Applicant: COVIDIEN LP
Inventor： Joseph D. Brannan
Abstract: An ablation system for directing energy to a target volume of tissue is provided. The ablation system comprises an ablation antenna probe including at least one radiating portion configured to output electromagnetic radiation and at least one electromagnetic shielding reflector configured for removable positioning on the antenna probe. The at least one electromagnetic shielding reflector is configured to block electromagnetic radiation from the at least one radiating portion through the at least one electromagnetic shielding reflector such that a particular directionality of the electromagnetic radiation from the at least one radiation portion to a target volume of tissue is achieved.
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Patent Agency Ranking
公开(公告)号：US10792100B2
公开(公告)日：2020-10-06
申请号：US14831467
申请日：2015-08-20
Applicant: COVIDIEN LP
Inventor： Joseph D. Brannan
Abstract: A system including a catheter navigable to a location within a patient, a lumen extending through the catheter and ending at the distal end in an orifice, a fluid controller in fluid communication with the lumen of the catheter and capable of supplying a fluid to or removing a fluid from an area proximate the desired location. The control of the fluid in the area proximate the desired location affecting a dielectric constant of the area proximate the desired location. The system includes a microwave energy source, and a microwave ablation probe connected to the microwave energy source, the microwave ablation probe being navigable to a desired location within the patient. Application of energy from the microwave energy source to the microwave ablation probe in an area proximate the desired location having the affected dielectric constant results in a substantially spherical tissue effect in the area proximate the desired location.
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公开(公告)号：US10716619B2
公开(公告)日：2020-07-21
申请号：US15626867
申请日：2017-06-19
Applicant: COVIDIEN LP
Inventor： Joseph D. Brannan , Eric W. Larson
Abstract: A surgical instrument for ablating tissue includes a handle portion and a shaft assembly extending distally from the handle portion. The shaft assembly includes an outer shaft, a coaxial cable extending through the outer shaft, and an electrode coupled to a distal portion of the outer shaft. The coaxial cable has a distal portion that forms a microwave antenna configured to transmit microwave energy radially outward and through the outer shaft. The electrode is configured to transmit radiofrequency energy. An actuation of the handle portion activates the transmission of the microwave energy from the microwave antenna and/or the transmission of the radiofrequency energy from the at least one electrode.
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公开(公告)号：US10675092B2
公开(公告)日：2020-06-09
申请号：US15918748
申请日：2018-03-12
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
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.
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公开(公告)号：US10588693B2
公开(公告)日：2020-03-17
申请号：US14674276
申请日：2015-03-31
Applicant: COVIDIEN LP
Inventor： Kenlyn S. Bonn , Darion R. Peterson , Joseph D. Brannan
Abstract: A microwave antenna including a feedline, a radiating section, an inflow hypotube, a puck, a transition collar and a sleeve. The feedline includes a coaxial cable including an inner and outer conductor, and a dielectric disposed therebetween. The radiating section includes a dipole antenna coupled to the feedline and a trocar coupled to the distal end of the dipole antenna. The inflow hypotube is disposed around the outer conductor and configured to supply fluid to the radiating portion. The puck includes at least two ribs with inflow slots defined between two adjacent ribs. The transition collar is coupled to the distal end of the inflow hypotube and the first end of the puck. The transition collar includes at least two outflow slots configured to receive fluid from a distal end of the inflow hypotube and to transition the fluid from the outflow slots to a distal end of the radiating section. The sleeve overlays the two outflow slots of the transition collar, the puck and at least the distal portion of the radiating section. The sleeve forms a fluid-tight seal with the transition collar proximal the outflow slots and defines a first gap for transitioning the fluid to exit the outflow slots of the transition collar to the distal end of the radiating section.
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公开(公告)号：US20200037925A1
公开(公告)日：2020-02-06
申请号：US16596930
申请日：2019-10-09
Applicant: Covidien LP
Inventor： Joshua B. Stopek , Joseph D. Brannan , William J. Dickhans , Casey M. Ladtkow
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 emits 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 or density of tissue.
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