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公开(公告)号：US20210251689A1
公开(公告)日：2021-08-19
申请号：US17251592
申请日：2019-06-12
Applicant: HOLOGIC, INC. , KANSAS STATE UNIVERSITY RESEARCH FOUNDATION
Inventor： Punit Prakash , Hojjatollah Fallahi , Jessica T. Schenck , Eric A. Frattura
IPC: A61B18/18 , A61B5/0507 , A61B5/00
Abstract: A tissue ablation system includes an antenna, a microwave energy source, measurement apparatus including a signal generator and a detector, a controller, and a switch assembly arranged to alternatively electrically couple the antenna to the microwave energy source or to the measurement apparatus, wherein the controller is configured to cause the switch assembly to alternate between assessment mode and ablation mode, and wherein the controller is configured to control the delivery of ablative microwave energy during an ablation mode based at least in part on a difference between a then-current broadband reflection coefficient spectrum and a previously measured broadband reflection coefficient spectrum obtained by delivery of a spectrum of individual non-ablative microwave signals and detecting the reflection of same during respective assessment modes.
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Patent Agency Ranking
公开(公告)号：US20210393328A1
公开(公告)日：2021-12-23
申请号：US17465169
申请日：2021-09-02
Inventor： Austin Pfannenstiel , Hojjatollah Fallahi , Punit Prakash
IPC: A61B18/18
Abstract: An electrosurgical device (10) is provided that is operable to deliver microwave energy within a controlled angular expanse to cause targeted tissue ablation. The device (10) comprises a blocking or reflecting material such as cylindrical members (34) that are laterally spaced from the antenna (20) that is operable to emit the microwave energy. The reflecting material creates regions in and/or surrounding the device into which sensors (51), such as thermocouple wires, may be placed to monitor a condition associated with the device or the patient's body.
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公开(公告)号：US20200367966A1
公开(公告)日：2020-11-26
申请号：US16881780
申请日：2020-05-22
Inventor： Austin Pfannenstiel , Hojjatollah Fallahi , Punit Prakash
IPC: A61B18/18
Abstract: An electrosurgical device (10) is provided that is operable to deliver microwave energy within a controlled angular expanse to cause targeted tissue ablation. The device (10) comprises a blocking or reflecting material such as cylindrical members (34) that are laterally spaced from the antenna (20) that is operable to emit the microwave energy. The reflecting material creates regions in and/or surrounding the device into which sensors (51), such as thermocouple wires, may be placed to monitor a condition associated with the device or the patient's body.
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公开(公告)号：US12268440B2
公开(公告)日：2025-04-08
申请号：US17465169
申请日：2021-09-02
Inventor： Austin Pfannenstiel , Hojjatollah Fallahi , Punit Prakash
Abstract: An electrosurgical device (10) is provided that is operable to deliver microwave energy within a controlled angular expanse to cause targeted tissue ablation. The device (10) comprises a blocking or reflecting material such as cylindrical members (34) that are laterally spaced from the antenna (20) that is operable to emit the microwave energy. The reflecting material creates regions in and/or surrounding the device into which sensors (51), such as thermocouple wires, may be placed to monitor a condition associated with the device or the patient's body.
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公开(公告)号：US20240285340A1
公开(公告)日：2024-08-29
申请号：US18572857
申请日：2022-06-21
Inventor： Punit Prakash , Hojjatollah Fallahi , Austin Pfannenstiel
CPC classification number: A61B18/1815 , A61B2018/00577 , A61B2018/00654 , A61B2018/00708 , A61B2018/00779 , A61B2018/00875 , A61B2018/1823
Abstract: A method of ablating tissue uses a microwave ablation system with a plurality of applicators. The method includes the steps of having the applicators inserted into the tissue and located in and/or adjacent a target tissue section and having the system perform an ablation cycle by activating at least one of the applicators so that the at least one applicator emits electromagnetic radiation that is sufficiently strong to cause ablation of the target tissue section. The at least one applicator comprises a directional applicator that emits radiation to define an angular radiation pattern. The step of having the applicators inserted into the tissue includes the step of orienting the directional applicator so that the angular radiation pattern extends from the directional applicator toward the target tissue section. The method also includes the step of having the system perform a sensing cycle that includes the step of using one or more of the applicators to take a measurement associated with a dielectric property of the tissue.
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公开(公告)号：US11135010B2
公开(公告)日：2021-10-05
申请号：US16881780
申请日：2020-05-22
Inventor： Austin Pfannenstiel , Hojjatollah Fallahi , Punit Prakash
Abstract: An electrosurgical device (10) is provided that is operable to deliver microwave energy within a controlled angular expanse to cause targeted tissue ablation. The device (10) comprises a blocking or reflecting material such as cylindrical members (34) that are laterally spaced from the antenna (20) that is operable to emit the microwave energy. The reflecting material creates regions in and/or surrounding the device into which sensors (51), such as thermocouple wires, may be placed to monitor a condition associated with the device or the patient's body.
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