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公开(公告)号：US20240348034A1
公开(公告)日：2024-10-17
申请号：US18700091
申请日：2022-10-11
申请人： CREO MEDICAL LIMITED
CPC分类号： H02G15/085 , A61B1/018 , A61B18/1206 , A61B18/1492
摘要： The present invention relates to an interface joint for interconnecting an electrosurgical generator and an electrosurgical instrument. In particular, the invention relates to an interface joint comprising a coaxial cable assembly for connecting the interface joint to an electrosurgical instrument. The interface joint comprises a housing made of electrically insulating material, the housing having: an inlet for receiving radiofrequency (RF) electromagnetic (EM) energy and/or microwave frequency EM energy from the electrosurgical generator, and an outlet; and a coaxial cable assembly for connecting the outlet to the electrosurgical instrument, the coaxial cable assembly comprising a first cable section and a second cable section, wherein the first cable section has a lower loss per unit length than the second cable section.
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公开(公告)号：US20240277408A1
公开(公告)日：2024-08-22
申请号：US18647967
申请日：2024-04-26
申请人： Creo Medical Limited
CPC分类号： A61B18/1815 , A61B8/12 , A61B18/1492 , A61B2017/0034 , A61B2018/00482 , A61B2018/00577 , A61B2018/00994 , A61B2018/126 , A61B2018/1823 , A61B2018/1853 , A61B2018/1861 , A61B2018/1869 , A61B2090/036 , A61B2218/002 , A61B2218/007
摘要： An electrosurgical instrument having a microwave ablation antenna dimensioned to be suitable for insertion into a pancreas via a surgical scoping device, to provide a rapid and accurate alternative to known RF ablation techniques. The electrosurgical instrument comprises: a proximal coaxial transmission line for conveying microwave electromagnetic (EM) energy; a distal radiating portion; and an intermediate impedance transformer arranged to match an impedance of the coaxial transmission line to an impedance of the distal radiating portion, wherein the distal radiating portion comprises a microwave antenna for emitting the microwave EM energy conveyed by the coaxial transmission line, wherein the distal radiating portion has a maximum outer diameter less than an outer diameter of the coaxial transmission line. With these features, the instrument is able to deliver microwave energy via a small diameter structure.
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公开(公告)号：US12059203B2
公开(公告)日：2024-08-13
申请号：US16061640
申请日：2016-12-16
申请人： CREO MEDICAL LIMITED
CPC分类号： A61B18/1815 , A61B18/1492 , A61B2018/00071 , A61B2018/00107 , A61B2018/00541 , A61B2018/00577 , A61B2018/00702 , A61B2018/00791 , A61B2018/00821 , A61B2018/00982 , A61B2018/183 , A61B2018/1861
摘要： An electrosurgical instrument for use in minimally invasive surgical techniques that provides a small scale localized microwave field capable of precisely ablating tissue, e.g. in the lungs, through suitable selection of geometry and material for a radiating distal tip thereof. The instrument may be used with a bronchoscope having a power delivery structure formed within the instrument cord thereof. A vision system may be incorporated into the energy delivery structure. The instrument comprise a coaxial cable for conveying microwave energy to a radiating tip portion that comprises a dielectric tip and a distal conductive portion that extends longitudinally therein. The dielectric tip has a dielectric constant greater than a dielectric material within the coaxial cable. The distal end of the device is designed to facilitate efficient microwave energy delivery into lung tumour tissue to achieve a localized volume of ablation.
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公开(公告)号：US20230310078A9
公开(公告)日：2023-10-05
申请号：US18068109
申请日：2022-12-19
申请人： CREO MEDICAL LIMITED
发明人： Simon MEADOWCROFT , Christopher Paul Hancock , George Ullrich , David Webb , Louis Turner , Julian Mark Ebbutt
CPC分类号： A61B18/1815 , A61B18/1492 , A61B2018/0022
摘要： An electrosurgical apparatus and method for performing thermal treatment in the gastrointestinal tract, e.g. to ablate duodenal mucosal tissue. The apparatus comprises an instrument having a flexible cable and an applicator suitable for use with a gastroscope, which can be deployed within a patient to delivery energy in a targeted or otherwise controllable manner. The applicator can deliver microwave energy by radiation. The direct and depth-limited nature of microwave energy can be make it more effective than treatments that rely on thermal conduction. The applicator may include a radially extendable portion arranged to move an microwave energy delivery structure into contact with duodenal mucosal tissue at the treatment region. The applicator may comprise any of a balloon, bipolar radiator, movable paddle, and rotatable roller element.
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公开(公告)号：US20230293232A9
公开(公告)日：2023-09-21
申请号：US18068162
申请日：2022-12-19
申请人： CREO MEDICAL LIMITED
发明人： Simon MEADOWCROFT , Christopher Paul Hancock , George Ullrich , David Webb , Louis Turner , Julian Mark Ebbutt
CPC分类号： A61B18/1815 , A61B18/1492 , A61B2018/0022
摘要： An electrosurgical apparatus and method for performing thermal treatment in the gastrointestinal tract, e.g. to ablate duodenal mucosal tissue. The apparatus comprises an instrument having a flexible cable and an applicator suitable for use with a gastroscope, which can be deployed within a patient to delivery energy in a targeted or otherwise controllable manner. The applicator can deliver microwave energy by radiation. The direct and depth-limited nature of microwave energy can be make it more effective than treatments that rely on thermal conduction. The applicator may include a radially extendable portion arranged to move an microwave energy delivery structure into contact with duodenal mucosal tissue at the treatment region. The applicator may comprise any of a balloon, bipolar radiator, movable paddle, and rotatable roller element.
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公开(公告)号：US20230201391A1
公开(公告)日：2023-06-29
申请号：US17927268
申请日：2021-05-28
申请人： Creo Medical Limited
CPC分类号： A61L2/14 , A61L2/26 , H05H1/4637 , A61L2202/11 , A61L2202/122 , A61L2202/123 , H05H2245/20 , H05H2245/36
摘要： Sterilisation systems suitable for clinical use, e.g. on the human body, medical apparatuses, or hospital bed spaces. The sterilisation apparatus comprises: a microwave source arranged to generate microwave energy; a mist generator arranged to generate a flow of water mist; a gas supply; a manifold connected to receive the flow of water mist from the mist generator; and a plurality of plasma applicators connected to the manifold, wherein each plasma applicator is connected to receive microwave energy from the microwave source and a flow of gas from the gas supply, wherein each plasma applicator is configured to strike a plasma at a distal end thereof, wherein the distal ends of the plurality of plasma applicators are disposed in a plasma generating region defined by the manifold, and wherein the manifold is configured to direct the flow of water mist through the plasma generating region to an outlet thereof.
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公开(公告)号：US20230067303A1
公开(公告)日：2023-03-02
申请号：US17784340
申请日：2020-12-15
申请人： CREO MEDICAL LIMITED
IPC分类号： A61B18/18
摘要： An electrosurgical instrument, comprising: an elongate probe comprising a coaxial cable for conveying radiofrequency (RF) and/or microwave frequency electromagnetic (EM) energy, and a probe tip connected at the distal end of the coaxial cable for receiving the RF and/or microwave energy; a gas passage for conveying gas to the probe tip; and an apparatus for debriding biological tissue. The coaxial cable comprises an inner conductor, outer conductor and dielectric material separating the conductors. The probe tip comprises a first electrode connected to the inner conductor of the coaxial cable and a second electrode connected to the outer conductor. The first electrode and the second electrode are arranged to produce an electric field from the received RF and/or microwave frequency EM energy across a flow path of gas received from the gas passage to produce a thermal or non-thermal plasma in an area outward from the probe tip.
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公开(公告)号：US20230057974A1
公开(公告)日：2023-02-23
申请号：US17790099
申请日：2020-12-21
申请人： Creo Medical Limited
IPC分类号： A61B18/18
摘要： The invention relates to an electrosurgical system for delivering electromagnetic energy at a plurality of frequencies to cause different effects on biological tissue at a treatment site, and in particular to an electrosurgical generator. The electrosurgical generator comprises an electromagnetic signal supply unit for generating microwave energy to be conveyed on each of a plurality of microwave channels, wherein each of the plurality of microwave channels is arranged to convey microwave energy at a different frequency; an output port configured to be connectable to a probe for delivering microwave energy from the plurality of microwave channels; and a signal combiner configured to connect the plurality of microwave channels to the output port, wherein the signal combiner comprises a band stop filter module disposed at a distal end of each of the plurality of microwave channels, wherein the band stop filter module for each microwave channel is configured to block microwave energy at the frequency conveyed on the other microwave channels; and a common signal pathway extending between the output port and a junction at which the plurality of microwave channels are connected.
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公开(公告)号：US11541140B2
公开(公告)日：2023-01-03
申请号：US16604143
申请日：2018-05-03
申请人： CREO MEDICAL LIMITED
发明人： Christopher Paul Hancock , Louis Turner , Patrick Burn , Sandra Swain , Julian Mark Ebbutt , Simon Meadowcroft , George Christian Ullrich , David Edward Webb , John Bishop
IPC分类号： G01N23/00 , A61N5/00 , A61L2/26 , A61L2/14 , A61B90/70 , A61B1/12 , A61L2/00 , A61L2/03 , H01J37/32
摘要： Sterilisation apparatus comprising a sterilisation instrument configured to be inserted through the instrument channel of a surgical scoping device and a withdrawal device for withdrawing the sterilisation instrument from the instrument channel at a predetermined rate. The sterilisation instrument comprises an elongate probe having a probe tip with a first electrode and a second electrode arranged to produce an electric field from received RF and/or microwave frequency EM energy. In operation the instrument may disinfect an inner surface of the instrument channel by emitting energy whilst being withdrawn through the channel.
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公开(公告)号：US11540880B2
公开(公告)日：2023-01-03
申请号：US16040064
申请日：2018-07-19
申请人： CREO MEDICAL LIMITED
摘要： An electrosurgical apparatus having a feed structure comprising a radiofrequency (RF) channel for conveying RF electromagnetic (EM) radiation from an RF signal generator to a probe and a microwave channel for conveying microwave EM radiation from a microwave signal generator to the probe, wherein the RF channel and microwave channel comprise physically separate signal pathways, wherein the feed structure includes a combining circuit having an input connected to the signal pathway on the RF channel, another input connected to the signal pathway on the microwave channel, and an output connected to a common signal pathway for conveying the RE EM radiation and EM radiation separately or simultaneously to the probe, and wherein the microwave channel includes a waveguide isolator connected to isolate the signal pathway on the microwave channel from the RF EM radiation.
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