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公开(公告)号：US20220202490A1
公开(公告)日：2022-06-30
申请号：US17594510
申请日：2020-04-28
申请人： Creo Medical Limited
发明人： Christopher HANCOCK , Shaun PRESTON , William TAPLIN , Sandra SWAIN , George ULLRICH , David WEBB
IPC分类号： A61B18/18
摘要： An electrosurgical system for treating biological tissue that comprises: an electrosurgical generator to supply microwave energy; a surgical scoping device having a steerable insertion cord for insertion to a treatment site; and an electrosurgical instrument dimensioned to fit within an instrument channel that is located within the insertion cord. The electrosurgical instrument comprises: a flexible coaxial cable arranged to convey the microwave energy; and a radiating tip portion connected at an end of the coaxial cable and configured to receive microwave energy. The radiating tip portion comprises: a coaxial transmission line for conveying the microwave energy; and a needle tip mounted at an end of the proximal coaxial transmission line, wherein the electrosurgical instrument is slidable within the instrument channel to extend the needle tip beyond an end of the instrument channel to puncture biological tissue; the needle tip is arranged to deliver the microwave energy into biological tissue.
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公开(公告)号：US20210307822A1
公开(公告)日：2021-10-07
申请号：US17349483
申请日：2021-06-16
申请人： CREO MEDICAL LIMITED
发明人： Christopher HANCOCK , Steven MORRIS , Patrick BURN , Louis TURNER , George ULLRICH , David WEBB
摘要： Electrical instrument for applying radiofrequency and/or microwave frequency energy to tissue, comprising: a distal part comprising an instrument tip for applying radiofrequency and/or microwave frequency energy to tissue, the instrument tip comprising first and second conductive elements; a coaxial feed cable comprising an inner conductor, a tubular outer conductor coaxial with the inner conductor, and dielectric material separating the inner and outer conductors, the coaxial feed cable being for conveying radiofrequency and/or microwave frequency energy to the distal part; wherein: the inner conductor is electrically connected to the first conductive element and the outer conductor is electrically connected to the second conductive element through a rotatable connection between the distal part and the coaxial feed cable that allows rotation of the distal part relative to the coaxial feed cable; and the instrument comprises an actuator for rotating the distal part in a first rotational direction relative to the feed cable.
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公开(公告)号：US20210307820A1
公开(公告)日：2021-10-07
申请号：US17349356
申请日：2021-06-16
申请人： CREO MEDICAL LIMITED
发明人： Christopher HANCOCK , Steven MORRIS , Patrick BURN , Louis TURNER , George ULLRICH , David WEBB
摘要： Electrical instrument for applying radiofrequency and/or microwave frequency energy to tissue, comprising: a distal part comprising an instrument tip for applying radiofrequency and/or microwave frequency energy to tissue, the instrument tip comprising first and second conductive elements; a coaxial feed cable comprising an inner conductor, a tubular outer conductor coaxial with the inner conductor, and dielectric material separating the inner and outer conductors, the coaxial feed cable being for conveying radiofrequency and/or microwave frequency energy to the distal part; wherein: the inner conductor is electrically connected to the first conductive element and the outer conductor is electrically connected to the second conductive element through a rotatable connection between the distal part and the coaxial feed cable that allows rotation of the distal part relative to the coaxial feed cable; and the instrument comprises an actuator for rotating the distal part in a first rotational direction relative to the feed cable.
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公开(公告)号：US20230181780A1
公开(公告)日：2023-06-15
申请号：US17922303
申请日：2021-04-22
申请人： CREO MEDICAL LIMITED
CPC分类号： A61L2/14 , A61L2/26 , A61L2/0011 , H05H1/4622 , H05H1/4645 , A61L2202/11 , A61L2202/16 , A61L2202/24 , A61L2202/25 , H05H2245/36
摘要： Sterilisation systems suitable for clinical use for generating a flow of hydroxyl radicals, comprising: a coaxial transmission line comprising an inner and outer conductor; an end cap mounted on a distal end of the coaxial transmission line, wherein the end cap comprises an outlet aperture; a fluid conduit extending from a fluid inlet to the outlet aperture; and a plasma generating region at a proximal end of the outlet aperture, wherein the plasma generating region contains a first electrode electrically connected to the inner conductor, and a second electrode electrically connected to the outer conductor, wherein the fluid conduit defines a fluid flow path through the device aligned with a feed direction in which fluid is receivable through the fluid inlet, and wherein the first electrode and second electrode oppose each other in a transverse direction across the longitudinal fluid flow path in the plasma generating region.
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公开(公告)号：US20180333202A1
公开(公告)日：2018-11-22
申请号：US15769685
申请日：2016-10-18
申请人： CREO MEDICAL LIMITED
发明人： Christopher HANCOCK , Steven MORRIS , Patrick BURN , Louis TURNER , George ULLRICH , David WEBB
CPC分类号： A61B18/1492 , A61B18/1206 , A61B18/1815 , A61B2017/0034 , A61B2018/00077 , A61B2018/00178 , A61B2018/00202 , A61B2018/00208 , A61B2018/00642 , A61B2018/00755 , A61B2018/00875 , A61B2018/00982 , A61B2018/00994 , A61B2018/1823 , A61B2018/1838 , A61B2018/1861 , A61B2090/035 , H01P1/065 , H01P1/066 , H01P5/085
摘要： Electrical instrument for applying radiofrequency and/or microwave frequency energy to tissue, comprising: a distal part comprising an instrument tip for applying radiofrequency and/or microwave frequency energy to tissue, the instrument tip comprising first and second conductive elements: a coaxial feed cable comprising an inner conductor, a tubular outer conductor coaxial with the inner conductor, and dielectric material separating the inner and outer conductors, the coaxial feed cable being for conveying radiofrequency and/or microwave frequency energy to the distal part; wherein: the inner conductor is electrically connected to the first conductive element and the outer conductor is electrically connected to the second conductive element through a rotatable connection between the distal part and the coaxial feed cable that allows rotation of the distal part relative to the coaxial feed cable: and the instrument comprises an actuator for rotating the distal part in a first rotational direction relative to the feed cable.
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公开(公告)号：US20210307819A1
公开(公告)日：2021-10-07
申请号：US17349301
申请日：2021-06-16
申请人： CREO MEDICAL LIMITED
发明人： Christopher HANCOCK , Steven MORRIS , Patrick BURN , Louis TURNER , George ULLRICH , David WEBB
摘要： Electrical instrument for applying radiofrequency and/or microwave frequency energy to tissue, comprising: a distal part comprising an instrument tip for applying radiofrequency and/or microwave frequency energy to tissue, the instrument tip comprising first and second conductive elements; a coaxial feed cable comprising an inner conductor, a tubular outer conductor coaxial with the inner conductor, and dielectric material separating the inner and outer conductors, the coaxial feed cable being for conveying radiofrequency and/or microwave frequency energy to the distal part; wherein: the inner conductor is electrically connected to the first conductive element and the outer conductor is electrically connected to the second conductive element through a rotatable connection between the distal part and the coaxial feed cable that allows rotation of the distal part relative to the coaxial feed cable; and the instrument comprises an actuator for rotating the distal part in a first rotational direction relative to the feed cable.
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公开(公告)号：US20210307818A1
公开(公告)日：2021-10-07
申请号：US17349228
申请日：2021-06-16
申请人： CREO MEDICAL LIMITED
发明人： Christopher HANCOCK , Steven Morris , Patrick Burn , Louis Turner , George Ullrich , David Webb
摘要： Electrical instrument for applying radiofrequency and/or microwave frequency energy to tissue, comprising: a distal part comprising an instrument tip for applying radiofrequency and/or microwave frequency energy to tissue, the instrument tip comprising first and second conductive elements; a coaxial feed cable comprising an inner conductor, a tubular outer conductor coaxial with the inner conductor, and dielectric material separating the inner and outer conductors, the coaxial feed cable being for conveying radiofrequency and/or microwave frequency energy to the distal part; wherein: the inner conductor is electrically connected to the first conductive element and the outer conductor is electrically connected to the second conductive element through a rotatable connection between the distal part and the coaxial feed cable that allows rotation of the distal part relative to the coaxial feed cable; and the instrument comprises an actuator for rotating the distal part in a first rotational direction relative to the feed cable.
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公开(公告)号：US20180353162A1
公开(公告)日：2018-12-13
申请号：US15755925
申请日：2016-09-30
申请人： CREO MEDICAL LIMITED
发明人： Christopher HANCOCK , Francis AMOAH , Malcolm WHITE , Thomas CRAVEN , Brian SAUNDERS , Zacharias P. TSIAMOULOS
CPC分类号： A61B10/06 , A61B10/04 , A61B18/1815 , A61B2017/0034 , A61B2017/2932 , A61B2018/00101 , A61B2018/00589 , A61B2018/00797 , A61B2018/00821 , A61B2018/1861 , A61B2562/182
摘要： A biopsy forceps tool (preferably for endoscopic use) in which microwave energy is used to coagulate bleeding after a biological tissue sample is collected between a pair of jaws. The pair of jaws define an enclosure that is isolated from the microwave energy itself and insulated from any thermal changes that occur due to application of the microwave energy. The tool comprises a pair of jaws connected to a coaxial cable, each of the pair of jaws comprising an electrically conductive shell, the jaw assembly being movable between a closed position in which the electrically conductive shells enclose an internal volume for holding a tissue sample and an open position in which the internal volume is exposed in order to receive the tissue sample. The electrically conductive shells form a Faraday cage around the internal volume when in the closed position.
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公开(公告)号：US20220241011A1
公开(公告)日：2022-08-04
申请号：US17604315
申请日：2020-04-28
申请人： CREO MEDICAL LIMITED
发明人： Christopher HANCOCK
摘要： Various embodiments provide a microwave amplification apparatus for an electrosurgical instrument. The microwave amplification apparatus comprises: a cable assembly; a proximal launch portion, and a distal amplification portion. The proximal launch portion is connected to a proximal end of the cable assembly, and comprises: a DC source configured to launch a DC signal along the cable assembly, and a microwave source configured to launch a microwave signal along the cable assembly. The distal amplification portion is connected to a distal end of the cable assembly, and comprises: a power amplifier configured to receive the microwave signal as an input signal to be amplified. The distal amplification portion is configured to apply the DC signal as a drain voltage across the power amplifier. The power amplifier has an output that is connectable to deliver an amplified microwave signal to a structure that is configured to deliver microwave energy into biological tissue.
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公开(公告)号：US20210307821A1
公开(公告)日：2021-10-07
申请号：US17349426
申请日：2021-06-16
申请人： CREO MEDICAL LIMITED
发明人： Christopher HANCOCK , Steven MORRIS , Patrick BURN , Louis TURNER , George ULLRICH , David WEBB
摘要： Electrical instrument for applying radiofrequency and/or microwave frequency energy to tissue, comprising: a distal part comprising an instrument tip for applying radiofrequency and/or microwave frequency energy to tissue, the instrument tip comprising first and second conductive elements; a coaxial feed cable comprising an inner conductor, a tubular outer conductor coaxial with the inner conductor, and dielectric material separating the inner and outer conductors, the coaxial feed cable being for conveying radiofrequency and/or microwave frequency energy to the distal part; wherein: the inner conductor is electrically connected to the first conductive element and the outer conductor is electrically connected to the second conductive element through a rotatable connection between the distal part and the coaxial feed cable that allows rotation of the distal part relative to the coaxial feed cable; and the instrument comprises an actuator for rotating the distal part in a first rotational direction relative to the feed cable.
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