公开(公告)号：US12178505B2

公开(公告)日：2024-12-31

申请号：US17298249

申请日：2019-11-26

Applicant: CREO MEDICAL LIMITED

Inventor： Christopher Paul Hancock ,  George Hodgkins ,  John Bishop

IPC: A61B18/18 ,  A61B17/00 ,  A61B18/04 ,  A61B18/14 ,  A61B18/00

Abstract: The invention relates to a modular electrosurgical system for using electromagnetic (EM) radiation, such as radio frequency (RF) or microwave EM radiation, to treat biological tissue. In one example, control of the modules is centralised in a remote computing device which can communicate wirelessly with the modules of the system. In one example, different optional modules may be combined together with core modules to provide the system with different electrosurgical capabilities.

公开(公告)号：US12108980B2

公开(公告)日：2024-10-08

申请号：US16610463

申请日：2018-06-01

Applicant: CREO MEDICAL LIMITED

Inventor： Christopher Paul Hancock ,  Malcolm White ,  Patrick Burn ,  Peter Clegg

IPC: A61B18/14 ,  A61B18/00 ,  A61B18/12 ,  A61B18/16 ,  A61B18/18

CPC classification number: A61B18/1492 ,  A61B18/1206 ,  A61B18/1815 ,  A61B2018/00077 ,  A61B2018/00083 ,  A61B2018/00577 ,  A61B2018/00601 ,  A61B2018/00994 ,  A61B2018/1417 ,  A61B2018/162 ,  A61B2018/1861 ,  A61B2218/001

Abstract: An electrosurgical instrument which is capable of simultaneously ablating an area of tissue with microwave energy and performing resection with RF energy. The instrument comprises a structure for conveying both RF and microwave energy to an instrument tip that is configured to emit the microwave energy in a manner suitable for ablation (e.g. as a substantially spherical field) and to emit the RF energy in a more focussed manner to enable accurate and controllable resection to be performed. The energy conveying structure comprises a coaxial transmission line for conveying microwave energy. The coaxial transmission line has a hollow inner conductor that defines a passage that supports a second transmission line for conveying radiofrequency energy.

公开(公告)号：US20240325072A1

公开(公告)日：2024-10-03

申请号：US18703683

申请日：2022-11-10

Applicant: CREO MEDICAL LIMITED

Inventor： George Christian ULLRICH ,  Christoper Paul HANCOCK ,  Louis TURNER

IPC: A61B18/14 ,  A61B18/00 ,  A61B18/18

CPC classification number: A61B18/1445 ,  A61B18/1815 ,  A61B2018/00601 ,  A61B2018/0063 ,  A61B2018/146

Abstract: An electrosurgical resector tool comprising: an energy conveying structure for carrying radiofrequency electromagnetic energy and/or microwave electromagnetic energy; and, a tool tip mounted at a distal end of the energy conveying structure, wherein the tool tip comprises a first jaw and a second jaw. The first jaw comprises a first pair of electrodes that are electrically isolated. The first pair of electrodes is coupled to the energy conveying structure. The first and second jaw are movable relative to each other between a closed position in which the first and second jaw lie alongside each other, and an open position in which the second jaw is spaced from the first jaw for receiving biological tissue. The first jaw extends in a distal direction beyond the second jaw in the closed position. The first jaw includes a distal end face, the first pair of electrodes being exposed on the distal end face.

公开(公告)号：US12082866B2

公开(公告)日：2024-09-10

申请号：US17058042

申请日：2019-05-24

Applicant: CREO MEDICAL LIMITED

Inventor： Christopher Paul Hancock ,  Patrick Burn ,  Pallav Shah

IPC: A61B18/12 ,  A61B1/005 ,  A61B1/018 ,  A61B18/00 ,  A61B18/14 ,  A61B18/16 ,  A61B18/18

CPC classification number: A61B18/1206 ,  A61B1/005 ,  A61B1/018 ,  A61B18/1492 ,  A61B18/16 ,  A61B18/1815 ,  A61B2018/00077 ,  A61B2018/00083 ,  A61B2018/00482 ,  A61B2018/00541 ,  A61B2018/00577 ,  A61B2018/00589 ,  A61B2018/00601 ,  A61B2018/00982 ,  A61B2018/00994 ,  A61B2018/1861

Abstract: An electrosurgical instrument for delivering both microwave and radiofrequency (RF) energy in which a pair of longitudinally spaced electrodes are combined with an intermediate tuning element to enable both effective bipolar RF ablation and/or coagulation and microwave ablation with a field shape that is constrained around the instrument tip. The instrument comprises a radiating tip disposed at a distal end of a coaxial cable. The tip has a distal electrode and a proximal electrode disposed on a surface of a dielectric body and physically separated by an intermediate portion of the dielectric body. A tuning element is mounted in the intermediate portion.

公开(公告)号：US12064173B2

公开(公告)日：2024-08-20

申请号：US16758359

申请日：2018-12-20

Applicant: Creo Medical Limited

Inventor： Christopher Paul Hancock

IPC: A61B18/18 ,  H03F3/19 ,  A61B17/00

CPC classification number: A61B18/1815 ,  H03F3/19 ,  A61B2017/00181 ,  A61B2018/1823

Abstract: An apparatus capable of generating high power microwave frequency pulses for use with an electrosurgical device. The apparatus may be used for coagulating or ablating biological tissue. The apparatus includes an amplifier line-up comprising: a microwave signal generator for generating microwave radiation; a modulator arranged to pulse the microwave radiation; and an amplifier module arranged to increase the power of pulses of microwave radiation. The amplifier module works by providing a set of amplifiers that exhibit a gain that is greater than the total loss experienced at the components that divide the input signal and then combine the output signals. For example, if each amplifier in the array has a gain of 10 dBm, it is viable to use conventional power splitters and combiners to obtain an output microwave signal with substantially higher power than is provided by conventional electrosurgical generators.

公开(公告)号：US11980413B2

公开(公告)日：2024-05-14

申请号：US17685851

申请日：2022-03-03

Applicant: CREO MEDICAL LIMITED

Inventor： Christopher Paul Hancock ,  Rohan Monico ,  Huw Hopkins ,  Tom Craven ,  Steve Morris

IPC: A61B18/14 ,  A61B18/18 ,  A61B17/00 ,  A61B18/00

CPC classification number: A61B18/1492 ,  A61B18/1815 ,  A61B2017/0034 ,  A61B2017/00424 ,  A61B2018/00083 ,  A61B2018/00172 ,  A61B2018/00178 ,  A61B2018/00196 ,  A61B2018/00345 ,  A61B2018/00601 ,  A61B2018/0063 ,  A61B2018/00982 ,  A61B2018/00994 ,  A61B2018/1412 ,  A61B2018/1861 ,  A61B2218/002

Abstract: An interface joint with one or both of a needle actuation mechanism or an integrated shaft rotation mechanism. The interface joint comprises a flexible shaft between a housing and an electrosurgical instrument, e.g. for conveying power and/or fluid therebetween. The needle actuation mechanism comprises an actuation rod extending out of the housing and an actuator movably mounted on the housing. The shaft rotation mechanism comprises a rotation actuator rotatably mounted on the housing and operably coupled to the flexible shaft. Providing an integrated shaft rotation mechanism may obviate the need for a separate torque transmission unit. The improved needle actuation mechanism may use a pivoting connection to enable longer needle extension distances to be achieved for a given actuation distance.

公开(公告)号：US11950843B2

公开(公告)日：2024-04-09

申请号：US16643482

申请日：2018-10-12

Applicant: Creo Medical Limited

Inventor： Christopher Paul Hancock ,  George Christian Ullrich ,  David Edward Webb ,  Louis Turner ,  Simon Meadowcroft ,  Jessi Johnson ,  Miriam Taimisto

IPC: A61B18/00 ,  A61B18/18

CPC classification number: A61B18/1815 ,  A61B2018/00202 ,  A61B2018/00601 ,  A61B2018/00607 ,  A61B2018/0063 ,  A61B2018/00946 ,  A61B2018/00952 ,  A61B2018/1823

Abstract: An electrosurgical apparatus comprising an electrosurgical forceps instrument that combines la robust jaw opening mechanism with an a microwave energy delivery mechanism. The instrument includes a rigid bracket mounted at a distal end of a flexible shaft, wherein a pair of jaws are pivotably mounted on the rigid bracket. The instrument includes an energy delivery structure comprising a flexible dielectric substrate having a first electrode and an second electrode formed on one of the pair of jaws, wherein the first electrode and the second electrode are arranged to emit microwave energy. The electrosurgical apparatus may also comprise a handpiece that combines rotation control of an electrosurgical instrument with both power delivery and end effector actuation (e.g. jaw closure, blade retraction or the like).

公开(公告)号：US20230372567A1

公开(公告)日：2023-11-23

申请号：US18249832

申请日：2021-11-04

Applicant: CREO MEDICAL LIMITED LTD

Inventor： Christopher Paul HANCOCK ,  George HODGKINS ,  William TAPLIN ,  Richard LAWRENCE ,  George Christian ULLRICH ,  David Edward WEBB

IPC: A61L2/26 ,  A61B1/12 ,  A61L2/14 ,  H05H1/46

CPC classification number: A61L2/26 ,  A61B1/125 ,  A61B1/122 ,  A61L2/14 ,  H05H1/46 ,  A61B1/018

Abstract: Various embodiments provide a sterilisation apparatus for sterilising a channel of a surgical scoping device. The apparatus includes: a gas supply having a conduit to deliver an ionisable gas to the channel of the surgical scoping device; and, a sterilisation instrument, separate from the gas supply and the conduit, configured to be inserted through the channel of a surgical scoping device. The sterilisation instrument includes an elongate probe. The elongate probe includes: a transmission line for conveying radiofrequency (RF) electromagnetic (EM) energy and/or microwave EM energy; and, a probe tip connected at the distal end of the transmission line for receiving the RF and/or microwave EM energy, the probe tip comprising an electrode assembly configured to produce an electric field from the received RF and/or microwave frequency EM energy to generate a plasma of the ionisable gas delivered to the channel from the gas supply.

公开(公告)号：US11793566B2

公开(公告)日：2023-10-24

申请号：US17349426

申请日：2021-06-16

Applicant: CREO MEDICAL LIMITED

Inventor： Christopher Hancock ,  Steven Morris ,  Patrick Burn ,  Louis Turner ,  George Ullrich ,  David Webb

IPC: A61B18/14 ,  A61B18/18 ,  H01P1/06 ,  A61B18/12 ,  A61B90/00 ,  A61B18/00 ,  H01P5/08 ,  A61B17/00

CPC classification number: A61B18/1492 ,  A61B18/1206 ,  A61B18/1815 ,  H01P1/065 ,  H01P1/066 ,  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 ,  H01P5/085

Abstract: 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.

公开(公告)号：US20230310077A1

公开(公告)日：2023-10-05

申请号：US18019023

申请日：2021-07-13

Applicant: Creo Medical Limited

Inventor： Christopher Paul Hancock ,  Malcolm White

IPC: A61B18/18

CPC classification number: A61B18/1815 ,  A61B2018/1823 ,  A61B2018/00589

Abstract: The invention relates to an electrosurgical apparatus for cutting and coagulating biological tissue. In particular, the present invention provides an electrosurgical generator arranged to generate radiofrequency (RF) electromagnetic (EM) energy and microwave frequency EM energy; wherein the electrosurgical generator is operable in each of a coagulation mode and a cutting mode, wherein in the coagulation mode the electrosurgical generator is arranged to deliver the RF EM energy and the microwave EM energy simultaneously in a coagulation composite waveform comprising a dominant microwave signal and a supplementary RF signal, and wherein in the cutting mode the electrosurgical generator is arranged to deliver the RF EM energy and the microwave EM energy simultaneously in a cutting composite waveform comprising a dominant RF signal and a supplementary microwave signal.