Electromagnetic Wave Irradiation Patents (Class 606/33)
  • Patent number: 11311721
    Abstract: Methods and apparatuses for treating a tissue with an electric treatment by rotating a pattern of electrodes partway through a treatment is disclosed. Also described herein are methods and apparatuses to treat tissue, including treating skin disorders, by selectively de-nucleating epidermal cells without provoking a significant inflammatory response, e.g., without increasing the density of leukocytes in the treated skin, and without affecting the non-cellular components of the dermis.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: April 26, 2022
    Assignee: Pulse Biosciences, Inc.
    Inventors: Edward Ebbers, David J. Danitz, Richard L. Nuccitelli, Darrin R. Uecker, Cameron D. Hinman, Kevin L. Moss
  • Patent number: 11304754
    Abstract: A circular microwave ablation antenna is provided with a chamber for accommodating the coaxial cable and the conduit, the chamber and the conduit extend forward to the front end of the antenna. An emission window of the antenna is at least partially located in the conduit to enable the cooling medium to cool the emission window area of the antenna. The conduit of the microwave emission area is made of an insulation material, so that the microwave can radiate outward, and the rest of the conduit is made of a microwave shielding material. The choke ring located at the rear side of emission area is hermetically fixed to the conduit, so that the choke ring acts to block the microwave. A gap exists between the choke ring and the needle bar, and the gap is used for the backflow of the cooling medium.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: April 19, 2022
    Assignee: Mima-Pro (Nan Tong) Scientific Inc
    Inventors: Peng Zhang, Ting Yang
  • Patent number: 11291513
    Abstract: A surgical instrument comprises an end effector coupled to a distal end of a shaft. The end effector comprises a pair of jaw members configured to be moved relative to each other between open and closed positions, and a cutting element configured to cut material gripped between the jaw members. The cutting element is further configured to translate between and along a lengthwise direction of the jaw members. The cutting element and a first jaw member comprise complementary retaining features that cooperate to retain the cutting element in a position held by the first jaw member throughout a range of motion of the jaw members between the open and the closed position.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: April 5, 2022
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Scott E. Manzo, Ralph Wadensweiler, Ben Schoettgen
  • Patent number: 11280863
    Abstract: An energy delivery system comprises a transmission member and an antenna at a distal end of the transmission member. The antenna includes a first conductive arm, an insulator extending around the first conductive arm, and a second conductive arm. The second conductive arm includes a coil. The system also comprises a barrier layer radially spaced from the insulator and surrounding the transmission member and antenna. The barrier layer extends from a proximal portion of the transmission member to a distal portion of the antenna. The system also comprises a jacket surrounding the barrier layer and forming a fluid channel for flow of a cooling fluid.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: March 22, 2022
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventor: Serena H. Wong
  • Patent number: 11272971
    Abstract: Electromagnetic (EM) tissue ablation device comprising an EM field generator unit, at least two coaxial elongated elements (i.e. an external one and an internal one) and a mechanism for varying the EM field, wherein said internal element is a part of said generator and said mechanism being adapted to vary the EM field for a specific tissue area.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: March 15, 2022
    Assignees: MYRA Medical Sàrl, GEM Srl
    Inventors: Enrico Pasquino, Guido Bettoni
  • Patent number: 11266431
    Abstract: A surgical instrument includes a gripping assembly, a shaft assembly, an end effector, and a pivoting member. The gripping assembly defines a first opening for receiving a finger or a thumb of a user. The gripping assembly includes a first deformable feature that is configured to be moved in order to increase or decrease a cross-sectional area of the first opening. The shaft assembly extends distally from the gripping assembly. The end effector is positioned at a distal end of the shaft assembly and includes a first member. The pivoting member is pivotably coupled with the shaft assembly. The pivoting member is pivotable with respect to the first member of the end effector between an open position and a closed position to thereby clamp tissue between the first member and the pivoting member.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: March 8, 2022
    Assignee: Cilag GmbH International
    Inventors: Tony C. Siebel, William B. Weisenburgh, II, Jeffrey D. Messerly, Matthew C. Miller, Cory G. Kimball
  • Patent number: 11266425
    Abstract: A catheter assembly includes a catheter comprising a flexible elongated member including a distal portion that includes a tubular body defining an inner lumen and a plurality of body apertures that extend through a sidewall of the tubular body into the inner lumen, and a plurality of primary electrodes positioned along the tubular body. The catheter assembly includes a wire defining at least one secondary electrode, the wire being configured to be slidably moved through the inner lumen of the tubular body, where the wire and the plurality of primary electrodes are configured to electrically couple to an energy source that delivers an electrical pulse to a fluid in contact with the plurality of primary electrodes and the at least one secondary electrode to cause the fluid to undergo cavitation to generate a pressure pulse wave within the fluid.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: March 8, 2022
    Assignee: Medtronic Vascular, Inc.
    Inventors: Gerry Oliver McCaffrey, Grainne Teresa Carroll, Risa Tom Egerter, Aran Murray, Jonathan Ashley Cope, Peter Glynn, Christopher W. Storment, Jack Wallis
  • Patent number: 11266464
    Abstract: An antenna assembly for microwave ablation can include a radiator for emitting a microwave for ablation; a coaxial cable for transmitting the microwave for ablation generated by a microwave generator to the radiator; an annular composite structure is provided around the coaxial cable for inhibiting an electromagnetic wave from propagating backwards along the coaxial cable. In some embodiment, the annular composite structure comprises an annular nonmetallic layer and an annular metallic layer located outside the annular nonmetallic layer. In some embodiments, the annular metallic layer is electrically insulated from the coaxial cable. In some embodiments, the antenna assembly can be used with a microwave ablation needle. The annular composite structure can inhibit the backward propagation of the microwave along the coaxial cable exterior wall. In some embodiments, circulation water enters the radiation zone, to avoid high temperatures of the head the ablation needle.
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: March 8, 2022
    Assignee: Surgnova Healthcare Technologies (Zhejiang) Co., Ltd.
    Inventors: Wenxing Huang, Dezhi Zhan, Yong Yan, Hui Li
  • Patent number: 11253178
    Abstract: Systems, methods, and interfaces are described herein for noninvasively determining an optimal coronary sinus branch to cannulate for a medical electrical lead. One exemplary method involves applying an electrode apparatus having a plurality of electrodes to a torso of a patient. One of a right ventricular (RV) lead is introduced to a right ventricle or a right atrial (RA) lead is introduced to a right atrium. Noninvasively ultrasonic energy is introduced to a target tissue selected from a set of target tissues. In response to delivering ultrasonic energy to the cardiac tissue, a processing unit receives a torso-surface potential signal from each of a plurality of electrodes distributed on a torso of a patient for the target tissue. Signals are sensed from one of the RA lead and the RV lead in response to delivering ultrasonic energy. For at least a subset of the plurality of electrodes, calculating, with the processing unit, a torso-surface activation time based on the signal sensed from the electrode.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: February 22, 2022
    Assignee: Medtronic, Inc.
    Inventors: Robert W. Stadler, Subham Ghosh
  • Patent number: 11241277
    Abstract: Disclosed herein are a skin treatment apparatus using RF energy and a skin treatment method using the same. There are provided a skin treatment apparatus using RF energy, including a first handpiece configured to include a first electrode unit coming into contact with a skin surface and to form perforations through which an agent penetrates by transferring RF energy to the skin surface through the first electrode unit, a second handpiece configured to include a second electrode unit inserted into the inside of the skin and to insert the second electrode unit into the inside of the skin into which the agent has penetrated and transfer the RF energy, and a controller configured to control parameters of the RF energy transferred to the first electrode unit and the second electrode unit, and a treatment method using the same.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: February 8, 2022
    Assignee: LUTRONIC CORPORATION
    Inventors: Kwang Chon Ko, Richard Howard Cohen
  • Patent number: 11239545
    Abstract: A multiple co-frequency microwaves detection antenna includes an oscillation circuit unit, a reference ground and at least two radiation sources. The radiation sources each has a feed point and are arranged spacedly at the reference ground. A radiation gap is formed between each of the radiation sources and the reference ground. The feed point of the radiation source is electrically connected to the oscillating circuit unit.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: February 1, 2022
    Inventor: Gaodi Zou
  • Patent number: 11234865
    Abstract: The underlying invention is directed to a method for changing the human perceptual color appearance of the iris of a human's or animal's eye by selectively decreasing the density of pigments of the anterior stroma layer of the iris. The method comprises generating, by a generator module, a plurality of predefined energy quantities; and applying, by the generator module, one or more of the predefined energy quantities to the anterior stroma layer, wherein each of the predefined energy quantities is generated and applied, such that the energy quantities ablate, at least in part, melanocytes of the stroma whilst leaving non-melanocyte tissue of at least the stroma essentially undamaged, and wherein the predefined energy quantities generated and applied to the anterior stroma layer in the form of pressure waves and/or pulses generated within a fluid medium that is in fluidical communication with the anterior stroma layer.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: February 1, 2022
    Inventor: Reinhardt Thyzel
  • Patent number: 11224536
    Abstract: Devices, systems and methods for removing heat from subcutaneously disposed lipid-rich cells are disclosed. In selected embodiments, suction and/or heat removal sources are coupled to an applicator. The applicator includes a flexible portion and a rigid portion. The rigid portion includes a thermally conductive plate and a frame coupling the thermally conductive plate and the flexible portion. An interior cavity of the applicator is in fluid communication with the suction source, and the frame maintains contiguous engagement between the heat removal source and the thermally conductive plate.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: January 18, 2022
    Assignee: Zeltiq Aesthetics, Inc.
    Inventors: Mark William Baker, Joseph Coakley, Paul William Martens, Albert L. Ollerdessen, William Patrick Pennybacker, Jesse N. Rosen, Peter Yee, John W. Allison
  • Patent number: 11224539
    Abstract: Surgical instruments for use in membrane peeling in treatments of different macular surface diseases are disclosed herein. Membrane forceps may include a forceps extension and forceps jaws extending from a distal termination of the forceps extension. The forceps jaws may include a first jaw and a second jaw. Each of the first jaw and the second jaw may include a gripping tip that abuts one another when the forceps jaws are in a closed configuration so as to grasp a membrane The first jaw and the second jaw may each include a coating at a distal end of the forceps jaws configured to increase a frictional force between the membrane and the forceps jaws.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: January 18, 2022
    Assignee: Alcon Inc.
    Inventor: Reto Grueebler
  • Patent number: 11219484
    Abstract: The invention comprises novel microwave antennas wherein the microwave field profile generated by an antenna is tailored and optimized for a particular clinical application. The antennas disclosed herein incorporate one or more additional elements called shaping elements that use unique properties of microwaves such as interaction of a microwave field with one or more conductive or non-conductive elements to shape or redistribute the microwave field. Such shaping elements may be used to reduce the undesired backward coupling of the emitted microwave field to the transmission line. Such shaping elements may be used to increase the power efficiency of the antenna. The invention also discloses devices and methods for treating tissue with microwave energy emitted from the antennas for use in applications such as destroying a soft tissue by microwave ablation.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: January 11, 2022
    Assignee: MicroCube, LLC
    Inventors: Chun Yiu Chu, Ketan Shroff, Dinesh I. Mody, Clarence Emmons, Amrish J. Walke
  • Patent number: 11207410
    Abstract: A formulation for an eye treatment includes a photosensitizer and a permeability enhancing composition. The permeability enhancing composition includes one or more permeability enhancers. The permeability enhancing composition has a hydrophilic and lipophilic balance increases a permeability of an area of the eye for the photosensitizer. The hydrophilic and lipophilic balance can be characterized by a Hydrophile-Lipophile Balance (HLB) number. For example, the area of the eye may include a corneal epithelium, the photosensitizer may include riboflavin, and the permeability enhancing composition may have a corresponding HLB number between approximately 12.6 and approximately 14.6.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: December 28, 2021
    Assignee: Avedro, Inc.
    Inventors: Pavel Kamaev, Marc D. Friedman
  • Patent number: 11185234
    Abstract: Resonance Raman scatter is used to differentiate in quasi-real time (QRT) anomalous tissue from adjacent normal tissue. The fingerprint generated from the tissue by a 1 second pulse of 532 nm emission for approximately one second is collected and is relayed by fiber-optic to a computerized controller that determines whether the target tissue is anomalous or normal. If anomalous it is ablated. This is performed by a pattern of Resonance Raman diagnostic emission and diagnostic sensor fibers. This diagnostic/therapeutic pattern of fibers can be moved by a joystick or robotically controlled. The data received by the computer is examined instantly, and should the site be diagnosed as anomalous, the optical biopsy/ablation is repeated immediately and repeated until the site is read as normal. Novel arrays of the diagnostic and therapeutic energies ensure a 3D anomalous tissue free zone around the removal site.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: November 30, 2021
    Inventor: Hugh Beckman
  • Patent number: 11172978
    Abstract: A microneedling system may reciprocate a plurality of microneedles disposed on a handpiece into the skin of a patient. The microneedles and/or electrode plates may deliver RF energy to the patient for inducing collagen coagulation and regeneration. An interrogative modality such as ultrasound may combined into the microneedling handpiece or used as a separate instrument to interrogate the skin and identify or measure the thicknesses of constituent layers. The data obtained from the interrogative modality may be displayed and can be used to automatically adjust operating parameters of the microneedling device, including the penetration depth of the needles, the pulse duration, and/or the power level of the RF energy to optimize the treatment for the specific patient and/or condition being treated. The microneedling system may recall the skin measurements for distinct sectors of the skin which are expected to have different properties.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: November 16, 2021
    Assignee: Aesthetics Biomedical, Inc.
    Inventors: Shaun Wootten, Christopher Mark William Daft
  • Patent number: 11167095
    Abstract: Disclosed embodiments include flexible tube assemblies, flexible needle assemblies, systems, methods of fabricating a flexible tube, and methods of fabricating a flexible needle.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: November 9, 2021
    Assignee: Spiration, Inc.
    Inventors: Christopher R. Ralph, Jean-Martin Baillargeon, Jason T. Panzenbeck
  • Patent number: 11160578
    Abstract: An ultrasonic surgical instrument that includes an ultrasonic transducer, a handle assembly supporting the ultrasonic transducer, a clamp arm assembly, and a mechanical lockout assembly. The handle assembly includes a housing and an ultrasonic blade acoustically coupled with the ultrasonic transducer. The clamp arm assembly includes a clamp arm. The mechanical lockout assembly is configured to switch between at least an unlocked configuration and a locked configuration. In the locked configuration, the handle assembly and the clamp arm assembly are not completely coupled together and the operator is physically prevented from activating the instrument using an operator input feature. In the unlocked configuration, the clamp arm assembly and the shaft assembly are completely coupled together and the operator is able to activate the instrument using the operator input feature.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: November 2, 2021
    Assignee: Cilag GmbH International
    Inventors: John E. Brady, Alexander R. Cuti, Demetrius N. Harris, Matthew T. Kuhn, Cameron D. McLain, Candice Otrembiak
  • Patent number: 11154618
    Abstract: A formulation for an eye treatment includes a photosensitizer and a permeability enhancing composition. The permeability enhancing composition includes one or more permeability enhancers. The permeability enhancing composition has a hydrophilic and lipophilic balance increases a permeability of an area of the eye for the photosensitizer. The hydrophilic and lipophilic balance can be characterized by a Hydrophile-Lipophile Balance (HLB) number. For example, the area of the eye may include a corneal epithelium, the photosensitizer may include riboflavin, and the permeability enhancing composition may have a corresponding HLB number between approximately 12.6 and approximately 14.6.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: October 26, 2021
    Assignee: Avedro, Inc.
    Inventors: Pavel Kamaev, Marc D. Friedman
  • Patent number: 11154358
    Abstract: An adjustable, structure providing an ablation apparatus, having a preformed structure made from compliant material such as rubber like material, foam or gel, with particles made of electromagnetic energy absorbing material. An antenna for radiating emitted microwave energy to generate heat and thus cause cavity ablation is located inside of the conformable adjustable structure. When end effector portion is inserted into the body cavity, the compliant adjustable structure is compliant to conform to a profile of the cavity to be ablated, and microwave energy is received to heat the adjustable structure resulting in heat energy that will ablate the cavity tissue in contact with the compliant end effector. Additionally, the shape of the end-effector compliant structure can be differently formed, depending of shape of tissue cavity to be ablated.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: October 26, 2021
    Assignee: Expandoheat, LLC
    Inventors: Gennady I Kleyman, Annaniy Berensteyn
  • Patent number: 11135010
    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.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: October 5, 2021
    Assignees: Precision Microwave Inc., Kansas State University Research Foundation
    Inventors: Austin Pfannenstiel, Hojjatollah Fallahi, Punit Prakash
  • Patent number: 11129673
    Abstract: A vapor-based ablation method mitigates constriction of the airways for the treatment of asthma and COPD. A vapor ablation catheter is advanced along the airways, through the airway wall, and to an extra-airway target tissue. The position of the catheter is assessed to determine whether the catheter is in contact with the target tissue. In embodiments, the distal energy delivery section of the catheter is manipulated to contact an exterior surface of the target tissue, or to enter the target tissue. Once the position is confirmed, vapor is delivered to the target tissue through an egress port with a sufficient amount of energy to ablate the target tissue. The target tissue may vary and include smooth muscle surrounding the airways, and nerves that control the smooth muscle. Methods for treating lung cancer are also described including delivering a vapor at lung tumors and growths, and blood vessels feeding the lung tumors and growths.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: September 28, 2021
    Assignee: Uptake Medical Technology Inc.
    Inventors: Robert Barry, Erik Henne
  • Patent number: 11129670
    Abstract: A surgical instrument comprises a controller configured to control application of RF or ultrasonic energy at a low level when displacement or intensity of a button is above a first threshold but below a second threshold higher than the first threshold, and control application of RF or ultrasonic energy at a high level when the displacement or intensity exceeds the second threshold. In another aspect, a surgical instrument comprises a first sensor configured to measure a tissue characteristic at a first location, a second sensor configured to measure the tissue characteristic at a second location, and a controller configured to, based at least in part on the measured tissue characteristic at the first location and the second location, control application of RF or ultrasonic energy.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: September 28, 2021
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, IV, David C. Yates, Kevin L. Houser, Jeffrey D. Messerly, Jason L. Harris
  • Patent number: 11123551
    Abstract: A method of forming a cochlear implant electrode array includes positioning contact array assembly, which includes at least one carrier and a plurality of contacts on the at least one carrier, in a mold, removing at least a portion of the at least one carrier from the mold without removing that plurality of contacts from the mold, and introducing resilient material into the mold after the at least a portion of the at least one carrier has been removed to form a flexible body.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: September 21, 2021
    Assignee: Advanced Bionics AG
    Inventors: Paul Vincent Hoffman, Matthew Vadim Krywcun, Uli Gommel, James George Elcoate Smith
  • Patent number: 11103308
    Abstract: Microwave ablation systems and methods use a cable assembly including a signal divider device that enables use of multiple microwave antennas through a single channel of a microwave generator. The cable assembly includes a microwave transmission line, a signal divider device having multiple ports coupled to an end portion of the microwave transmission line, an electrical line, and a monitoring circuit coupled to an end portion of the electrical line. The monitoring circuit is configured to acquire information regarding multiple devices coupled to multiple respective ports of the signal divider device and convert the information regarding multiple devices to single channel information. The single channel information is inserted in a communication packet and transmitted to the microwave generator via the electrical line.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: August 31, 2021
    Assignee: Covidien LP
    Inventor: Joseph D. Brannan
  • Patent number: 11096825
    Abstract: For the purposes of working on eye tissue, an ophthalmological apparatus comprises a laser source that is configured to produce a pulsed laser beam, a focusing optical unit that is configured to focus the pulsed laser beam into the eye tissue, a scanner system for deflecting the pulsed laser beam onto work target points in the eye tissue, and a measurement system for optically capturing structures in the eye tissue. A circuit controls the measurement system in such a way that the latter captures a cut first outer face of a lenticule to be cut. The circuit controls the scanner system in such a way that the latter guides the pulsed laser beam onto work target points on a second outer face, positioned in relation to the captured first outer face, of the lenticule to be cut, in order to cut the second outer face of the lenticule.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: August 24, 2021
    Assignee: Ziemer Ophthalmic Systems AG
    Inventor: Christian Rathjen
  • Patent number: 11090113
    Abstract: A microwave ablation antenna assembly (20) incorporates a choke assembly (40) having a dielectric element (42) and a conducting element (48). The conducting element (48) is chosen from a group of elements of fixed length, but with differing electrical lengths for providing cancellation properties for different wavelengths of microwave energy.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: August 17, 2021
    Assignee: Gyrus Medical Limited
    Inventor: David Nicholas Williams
  • Patent number: 11090116
    Abstract: An electrosurgical waveform having both radiofrequency (RF) energy and microwave energy components that is arranged to perform efficient haemostasis in biological tissue. The waveform comprises a first portion primarily of RF electromagnetic energy, and a second portion primarily of microwave electromagnetic energy that follows the first portion. The second portion further comprises a plurality of RF pulses, wherein the first portion transitions to the second portion when either a duration of the first portion meets or exceeds a predetermined duration threshold, or an impedance determined during the first portion meets or exceeds a predetermined threshold. The waveform is arranged to deliver energy rapidly so that haemostasis can occur in a short time frame in a situation where the maximum available power is limited, or to avoid undesirable thermal damage to the biological tissue.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: August 17, 2021
    Assignee: CREO MEDICAL LIMITED
    Inventors: Christopher Paul Hancock, Francis Amoah, Martin Jarman
  • Patent number: 11090110
    Abstract: A surgical instrument comprises a controller configured to control application of RF or ultrasonic energy at a low level when displacement or intensity of a button is above a first threshold but below a second threshold higher than the first threshold, and control application of RF or ultrasonic energy at a high level when the displacement or intensity exceeds the second threshold. In another aspect, a surgical instrument comprises a first sensor configured to measure a tissue characteristic at a first location, a second sensor configured to measure the tissue characteristic at a second location, and a controller configured to, based at least in part on the measured tissue characteristic at the first location and the second location, control application of RF or ultrasonic energy.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: August 17, 2021
    Assignee: Cilag GmbH International
    Inventors: Frederick E. Shelton, IV, David C. Yates, Kevin L. Houser, Jeffrey D. Messerly, Jason L. Harris
  • Patent number: 11076912
    Abstract: It is an object of the present invention to provide a balloon-type ablation catheter that can measure the electric potential around the entire circumference of the pulmonary vein at a position near the left atrium with electrodes attached to a catheter distal end part of an electrode catheter inserted in a shaft in a state where a balloon is pressed against the area around the ostium of the pulmonary vein. The balloon-type ablation catheter of the present invention includes a catheter shaft (10) having a multi-lumen structure in which a plurality of lumens (11 to 17) are formed that include a liquid feeding lumen (13), (16) and an electrode catheter insertion lumen (12), a distal end tip (30) attached to the distal end of the catheter shaft (10), a balloon (50) attached to the distal end part of the catheter shaft (10), and a high-frequency current application electrode (70) provided in the balloon (50).
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: August 3, 2021
    Assignee: Japan Lifeline Co., Ltd.
    Inventor: Kenji Mori
  • Patent number: 11065054
    Abstract: Surgical cutting apparatus having a treatment channel and a measurement channel for conveying microwave energy from a source to an antenna at a cutting edge. The measurement channel operates at lower power than the treatment channel for determining when higher energy can be safely applied. The apparatus may deliver microwave radiation at differing frequencies to one or more antennas at the cutting edge, e.g. to provide different treatment effects. The source may generate an output for an antenna whose frequency can be selected e.g. for most efficient operation. Selection may be automatic based on detected magnitude and phase of reflected signals during a frequency sweep of a forward signal. Power delivered to tissue via the cutting element may be manually boosted to deal with large blood vessels. The apparatus may include a reflected power monitor for recognising behaviour in reflected signals received from the antenna to trigger automatic pre-emptive action.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: July 20, 2021
    Assignee: CREO MEDICAL LIMITED
    Inventor: Christopher Paul Hancock
  • Patent number: 11058483
    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
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: July 13, 2021
    Assignee: CREO MEDICAL LIMITED
    Inventors: Christopher Hancock, Steven Morris, Patrick Burn, Louis Turner, George Ullrich, David Webb
  • Patent number: 11058487
    Abstract: An antenna system is provided that includes a coaxial cable, an antenna, a reflector wall, and a slot wall. The reflector wall is formed of a conductive material connected to a conductive shield to extend in an axial direction, is separated from an antenna conductor by a second dielectric material in a radial direction relative to the antenna conductor, and partially surrounds the antenna conductor in the radial direction from a first angle to a second angle when projected into a radial plane. The slot wall is formed through a portion of the conductive shield to expose a dielectric material from a third angle to a fourth angle when projected into the radial plane, is formed on a first side relative to a base. The first angle, the second angle, the third angle, and the fourth angle are defined relative to a common axis parallel to the radial plane.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: July 13, 2021
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Nader Behdad, Susan C. Hagness, Yahya Mohtashami
  • Patent number: 11058446
    Abstract: An apparatus, including a handle and a first conductive tube that is attached to and extends from the handle. The first conductive tube is biocompatible, and a distal end of the first conductive tube is configured to be inserted into an orifice of a human being for a medical procedure. The apparatus includes a second conductive tube, that is attached to and is enclosed by the first conductive tube. The first and second conductive tubes together act as an antenna for electromagnetic radiation. An insulated conductive coil is fashioned around and is fixed to the second conductive tube, and the coil generates a signal in response to a magnetic field traversing the coil. The apparatus also includes a transceiver that receives the signal from the insulated conductive coil, and in response generates a radiofrequency signal at a preset frequency and conveys the radiofrequency signal to the second conductive tube for radiation therefrom as electromagnetic energy at the preset frequency.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: July 13, 2021
    Assignee: Biosense Webster (Israel) Ltd.
    Inventor: Vadim Gliner
  • Patent number: 11051882
    Abstract: A sub-microsecond pulsed electric field generator is disclosed. The field generator includes a controller, which generates a power supply control signal and generates a pulse generator control signal, and a power supply, which receives the power supply control signal and generates one or more power voltages based on the received power supply control signal. The field generator also includes a pulse generator which receives the power voltages and the pulse generator control signal, and generates one or more pulses based on the power voltages and based on the pulse generator control signal. In some embodiments, the controller receives feedback signals representing a value of a characteristic of or a result of the pulses and generates at least one of the power supply control signal and the pulse generator control signal based on the received feedback signals.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: July 6, 2021
    Assignee: Pulse Biosciences, Inc.
    Inventors: Shu Xiao, Brian G. Athos, Mark P. Kreis, David J. Danitz, Darrin R. Uecker
  • Patent number: 11045223
    Abstract: A modular signal interface system for providing electrical communication with a surgical instrument when the surgical instrument is inserted into a cannula of a trocar. The system includes a signal interface adapter and an instrument connector. The signal interface adapter is provided on, or adapted to be mounted on a trocar, and includes central aperture extending therethrough and a proximal face having a plurality of conductive contacts. The instrument connector is provided on or adapted to be mounted on a shaft of a surgical instrument, and includes a central aperture extending therethrough and a distal face having a plurality of conductive contacts. The signal interface adapter and the instrument connector are adapted for mating engagement such that, when matingly engaged, their central apertures are axially aligned and predetermined ones of the plurality of contacts of the signal interface adapter are in conductive contact with predetermined ones of the plurality of contacts of the instrument connector.
    Type: Grant
    Filed: December 11, 2016
    Date of Patent: June 29, 2021
    Assignee: REACH SURGICAL, INC.
    Inventor: Jean Beaupre
  • Patent number: 11033256
    Abstract: A handle assembly for actuating an end effector is provided. The handle assembly includes an actuation mechanism with a linkage assembly configured to maximize the output force. The linkage assembly includes first, second, and third linkage members operably disposed between a trigger and a drive member.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: June 15, 2021
    Assignee: Covidien LP
    Inventors: Thomas A. Zammataro, Brian J. Creston, Jacob C. Baril
  • Patent number: 11033329
    Abstract: A method and system for mapping tissue and producing lesions for the treatment of cardiac arrhythmias in a non-thermal and optimal manner, minimizing the amount of energy required to selectively stun or ablate the target tissues. Energy may be delivered only at the moment(s) of best device position and proximity of an electrode to target tissue, and only during a time in the cardiac cycle determined to be optimal for reversible or irreversible effects. A method may include determining timing of the cardiac cycle and an optimal time within the cardiac cycle for energy delivery, evaluating proximity between at least one energy delivery electrode and the target tissue, and delivering pulsed field energy from the at least one energy delivery electrode to the target tissue when, during the optimal time for energy delivery, the at least one energy delivery electrode is in close proximity with the target tissue.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: June 15, 2021
    Assignee: Medtronic Ablation Frontiers LLC
    Inventors: Mark T. Stewart, Catherine R. Condie, Jay L. Kelley
  • Patent number: 11026742
    Abstract: The present disclosure is directed to a forceps having an end effector assembly including first and second jaw members. At least one of the jaw members is movable relative to the other between a spaced-apart position and an approximated position for grasping tissue therebetween. Each jaw member includes an electrically-conductive tissue-contacting surface adapted to connect to a source of energy to treat tissue grasped between the jaw members. A suction system is disposed proximate the first and second jaw members and is configured to apply suction to a surgical site upon activation thereof.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: June 8, 2021
    Assignee: Covidien LP
    Inventors: Amarsinh D. Jadhav, Nikhil P. Mankar
  • Patent number: 11020180
    Abstract: Systems, devices, and methods for electroporation ablation therapy are disclosed herein, with a cinch device for positioning an ablation catheter relative to tissue during a cardiac ablation procedure. In some embodiments, a distal end of a first device may be advanced into a proximal end of a first lumen of a second device. The first device may be advanced from a distal end of the first lumen and the first device may be looped around tissue of a patient. The first device may be advanced into a distal end of a second lumen of the second device. The distal end of the first device may be advanced from a proximal end of the second lumen. The proximal and distal ends of the first device may be advanced away from a proximal end of the second device to increase contact between the first device and the tissue.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: June 1, 2021
    Assignee: Farapulse, Inc.
    Inventors: Raju Viswanathan, Jean-Luc Pageard
  • Patent number: 11000202
    Abstract: This document describes methods and materials for mapping and modulating repolarization. For example, this document relates to methods and devices for mapping and modulating repolarization to target atrial and ventricular arrhythmias to deliver electrical stimulation pacing, ablation and/or electroporation.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: May 11, 2021
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Christopher J. McLeod, Samuel J. Asirvatham
  • Patent number: 10987117
    Abstract: Retrieval of material from vessel lumens can be improved by electrically enhancing attachment of the material to the removal device. The removal device can have a core assembly that includes a hypotube coupled to a first electrical terminal and a pushwire coupled to a second electrical terminal, the pushwire extending through the hypotube lumen. An insulating layer separates the hypotube and the pushwire, and an interventional element is coupled to a distal end of the pushwire. The interventional element can be disposed adjacent to a thrombus. An electrical signal is delivered to the interventional element to promote adhesion of the thrombus to the interventional element. The electrical signal can optionally be a periodic waveform, and the total energy delivered can be between 0.75-24,000 mJ and the peak current delivered via the electrical signal can be between 0.5-5 mA.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: April 27, 2021
    Assignee: COVIDIEN LP
    Inventors: Gaurav Girdhar, Dinh Nguyen, Hoai Nguyen
  • Patent number: 10987165
    Abstract: A system and method for supplying microwave energy to tissue for microwave therapy includes an electrosurgical generator having an output for coupling to a surgical instrument. The electrosurgical generator includes a microwave energy source and a controller for controlling the operation of the electrosurgical generator. The surgical instrument, coupled to the electrosurgical generator, includes a microwave antenna for delivering microwave energy from the microwave energy source. The controller of the electrosurgical generator is operable for causing the electrosurgical generator to apply at least two pulses of microwave energy.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: April 27, 2021
    Assignee: COVIDIEN LP
    Inventors: Kyle R. Rick, Joseph A. Paulus, Darion R. Peterson, Mani N. Prakash, Francesca Rossetto
  • Patent number: 10987001
    Abstract: Catheter apparatus comprises a coaxial cable having proximal and distal ends. The cable includes a hollow center conductor, an outer conductor and an electrically insulating layer between the conductors. An antenna is at the distal end of the cable, and a diplexer is connected to the cable, the diplexer including a transmit path for connecting the antenna to a transmitter which transmits first frequency signals and a receive path for connecting the antenna to a receiver which detects second frequency signals the diplexer isolating the signals on the two paths from one another. A transmission line connects the cable to the diplexer, the transmission line having a segment with a tubular inner conductor one end of which is connected to the center conductor and a second end of which is adapted for connection to a coolant source, the center and inner conductors forming a continuous coolant pathway.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: April 27, 2021
    Inventor: Kenneth L. Carr
  • Patent number: 10973541
    Abstract: An ultrasonic instrument includes a body and a shaft assembly extending distally from the body. The shaft assembly includes an acoustic waveguide. The instrument further includes an end effector including an ultrasonic blade. The ultrasonic blade is in acoustic communication with the acoustic waveguide. The instrument further includes a sensor configured to sense at least one characteristic of the shaft assembly and/or the end effector. The end effector is configured to be activated at varying power levels based on the at least one characteristic sensed by the sensor.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: April 13, 2021
    Assignee: Ethicon LLC
    Inventors: Ashvani K. Madan, David C. Groene, Benjamin M. Boyd, Craig N. Faller, Jacob S. Gee, Paul F. Riestenberg
  • Patent number: 10952788
    Abstract: A surgical instrument is disclosed including an end effector, a generator configured to deliver adaptive energy, a mode selector switch having a plurality of surgical modes, a closure switch configured to control the end effector, and a counter configured to count a number of closure switch activations. The surgical instrument is configured to communicate a selected surgical mode of the mode selector switch and the number of closure switch activations from the counter to the generator. The surgical instrument is configured to receive the adaptive energy from the generator based on the selected surgical mode and the number of closure switch activations. The generator is configured to deliver the adaptive energy to the surgical instrument closer to a start of an activation cycle for the selected surgical mode as the number of closure switch activations increases.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: March 23, 2021
    Assignee: Ethicon LLC
    Inventors: Ryan M. Asher, Craig N. Faller, Charles J. Scheib, Paul F. Riestenberg, Jacob S. Gee, Benjamin M. Boyd, Benjamin D. Dickerson, Rafael J. Ruiz Ortiz, William B. Weisenburgh, II, Thomas C. Gallmeyer, John A. Hibner
  • Patent number: 10953228
    Abstract: An implantable wireless lead includes an enclosure, the enclosure housing: one or more electrodes configured to apply one or more electrical pulses to a neural tissue; a first antenna configured to: receive, from a second antenna and through electrical radiative coupling, an input signal containing electrical energy, the second antenna being physically separate from the implantable neural stimulator lead; one or more circuits electrically connected to the first antenna, the circuits configured to: create the one or more electrical pulses suitable for stimulation of the neural tissue using the electrical energy contained in the input signal; and supply the one or more electrical pulses to the one or more electrodes, wherein the enclosure is shaped and arranged for delivery into a subject's body through an introducer or a needle.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: March 23, 2021
    Assignee: Stimwave Technologies Incorporated
    Inventors: Laura Tyler Perryman, Patrick Larson, Chad Andresen
  • Patent number: 10946192
    Abstract: The invention relates to a device (100) for RF skin treatment, comprising an active electrode (1) arranged on an operational side (15) of the device and having a first skin contact surface for contact with a skin of a user, which first skin contact surface has a largest cross-sectional dimension smaller than or equal to 2 mm. The device comprises a return electrode (2) arranged on the operational side (15) of the device and having a second skin contact surface for contact with the skin of the user, wherein an area of the second skin contact surface is at least five times larger than an area of the first skin contact surface. An RF generator (21) is arranged to supply an RF treatment voltage between the active electrode (1) and the return electrode (2) so as to heat a skin region below the active electrode, wherein the RF treatment voltage has a frequency in a range of 100 MHz-3 GHz.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: March 16, 2021
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Jonathan Alambra Palero, Marco Baragona, Martin Jurna, Babu Varghese, Hendrik Halling Van Amerongen