With Fragmenting Means Patents (Class 606/128)
  • Patent number: 10849637
    Abstract: A lithotripter tip configured for use within an invasive lithotripter probe may include a lithotripter tip body defining an interior region in communication with an aperture at a distal end of the lithotripter tip body and defining at least one port in communication with the interior region. A first electrode and a second electrode are positioned within the interior region of the lithotripter tip such that such that when liquid is within the interior region and an electric arc occurs between the first and second electrodes, a gaseous bubble forms within the interior region and a resulting shockwave travels out of the aperture at the distal end of the lithotripter tip body.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: December 1, 2020
    Assignee: NORTHGATE TECHNOLOGIES, INC.
    Inventor: Robert R. Mantell
  • Patent number: 10842515
    Abstract: Embodiments are directed to electro-hydraulically actuated lithotripters and methods for fragmenting stones using such lithotripters. In an embodiment, a lithotripter apparatus for fragmenting at least one stone in a body is disclosed. The lithotripter apparatus includes a chamber configured to contain an electro-conductive fluid, which includes a proximal end wall and a distal end wall spaced from the proximal end wall. A chisel is coupled to the chamber and located at least proximate to the distal end wall. A proximal electrode is located at least partially in the chamber. A distal electrode is located at least partially in the chamber and spaced from the proximal electrode. Responsive to an effective voltage applied between the proximal and distal electrodes, the proximal and distal electrodes are configured to electrically discharge into the electro-conductive fluid to generate shock waves in the chamber that accelerate the chisel toward the at least one stone.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: November 24, 2020
    Assignee: C.R. BARD, INC.
    Inventor: Michael Dolgin
  • Patent number: 10702249
    Abstract: Provided is a wireless probe including: an ultrasound reception/transmission module that receives a first power and scans a target object by transmitting ultrasound signals to the target object and receiving ultrasound echo signals reflected from the target object; a signal processing module that receives a second power, generates pulses for generating the ultrasound signals and generates ultrasound data by using the ultrasound echo signals; a wireless communication module that receives a third power and receives/transmits predetermined data from/to a medical device; a controller that controls supply of at least one of the first power, the second power, and the third power based on an operation state of the wireless probe; and a power unit that supplies or blocks the at least one of the first power, the second power, and the third power according to control of the controller. Each component included in the wireless probe may reduce power consumed by the wireless probe.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: July 7, 2020
    Assignees: Samsung Medison Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Gil-ju Jin, Mi-jeoung Ahn, Nam-woong Kim, Seong-ho Chang
  • Patent number: 10646240
    Abstract: Described herein are shock wave devices and methods for the treatment of calcified heart valves. One variation of a shock wave device may comprise an elongated flexible tube carried by a sheath. The tube may have a fluid input end, which may be located near a proximal end of the sheath. The tube may include a loop portion. The loop portion may be configured to be at least partially accommodated within a cusp of the heart valve. The tube may be fillable with a conductive fluid. In some variations, the shock wave device may include an array of electrode pairs associated with a plurality of wires positioned within the loop portion of a tube. The electrode pairs may be electrically connectable to a voltage source and configured to generate shock waves in the conductive fluid in response to voltage pulses.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: May 12, 2020
    Assignee: SHOCKWAVE MEDICAL, INC.
    Inventors: Rainier Betelia, Hoa D. Nguyen, Camilo Perez Saaibi, Adam R. Tanner
  • Patent number: 10603058
    Abstract: Electrohydraulic lithotripters comprising a plurality of electrohydraulic probes are disclosed. Each probe of the plurality of probes comprise a first electrode and a second electrode positioned at a distal end of the probe such that when the probe is discharged, an electric arc between the first electrode and the second electrode produces a shockwave that radiates from the distal end of the probe. A first probe and a second probe of the plurality of probes may be configured to discharge simultaneously or sequentially.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: March 31, 2020
    Assignee: NORTHGATE TECHNOLOGIES, INC.
    Inventor: Robert Mantell
  • Patent number: 10478202
    Abstract: A valvuloplasty system comprises a balloon adapted to be placed adjacent leaflets of a valve. The balloon is inflatable with a liquid. The system further includes a shock wave generator within the balloon that produces shock waves that propagate through the liquid for impinging upon the valve. The shock wave generator is moveable within the balloon to vary shock wave impingement on the valve.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: November 19, 2019
    Assignee: SHOCKWAVE MEDICAL, INC.
    Inventors: John M. Adams, Thomas G. Goff
  • Patent number: 10449276
    Abstract: The catheter device comprises a motor at the proximal end of the catheter device and a drive shaft, extending from the proximal end section to the distal end section of the catheter device, for driving a rotating element located at the distal end of the catheter device. The catheter device also comprises a hose-like catheter body which encompasses the drive shaft and extends from the proximal end section to the distal end section. At the proximal end of the catheter device, the drive shaft is connected to a motor by a clutch. The clutch is a magnetic clutch with a proximal and a distal magnet unit. The proximal magnet unit is connected to the motor and the distal magnet unit to the drive shaft. The distal magnet unit is mounted fluid-tight in a clutch housing. The proximal end of the catheter body makes a fluid-tight connection with the clutch housing.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: October 22, 2019
    Assignee: AIS GMBH AACHEN INNOVATIVE SOLUTIONS
    Inventors: Joachim Georg Pfeffer, Thomas Schmitz-Rode, Rolf W. G√ľnther
  • Patent number: 10426500
    Abstract: An invasive electrohydraulic lithotripter probe may comprise a lithotripter tip that comprises a first electrode and a second electrode. The lithotripter tip has a length in excess of 250 cm and is dimensioned to be inserted into a long channel having a length in excess of 250 cm. The lithotripter probe may include a material that reinforces a linear strength of at least a portion of the lithotripter probe.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: October 1, 2019
    Assignee: NORTHGATE TECHNOLOGIES INC.
    Inventors: Stan J. Lipowski, Robert Mantell, Chuck Zander
  • Patent number: 10368941
    Abstract: Systems and methods for delivering energy to passageways in a patient, such as airways in the lung of a patient for treating asthma. One embodiment of a method for delivering energy to a passageway comprises positioning an access device in a lung airway of a patient and advancing an elongated body of a treatment device along the access device until an energy delivery unit at a distal portion of the elongated body projects from the access device. The method can further include expanding the energy delivery unit such that energy delivery elements contact a sidewall of the airway and activating an energy supply coupled to the treatment device such that energy is delivered to the sidewall of the airway. A single person physically operates both the access device and the treatment device while expanding the energy delivery unit and activating the energy supply.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: August 6, 2019
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Noah Webster, Timothy Dalbec, Huy Phan, William Wizeman, William Evans, Matthew Presta
  • Patent number: 10357264
    Abstract: A translatable shock wave treatment apparatus is suitable for use in treating calcified lesions in vascular structures having small diameters. An elongate member carrying a collapsed angioplasty balloon is first inserted into the occluded blood vessel. The angioplasty balloon is inflated with a conducting fluid to pre-dilate the narrow blood vessel prior to introducing electrodes and applying shock wave therapy. After the blood vessel is at least partially opened, a translatable electrode carrier equipped with one or more shock wave emitters is advanced into the angioplasty balloon. Shock waves are then propagated through the fluid to impart energy to calcified plaques along the vessel walls, thereby softening the calcified lesions. Following the shock wave treatment, multiple inflation and deflation cycles of the angioplasty balloon can be administered to gently compress the softened lesion and complete dilation of the blood vessel.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: July 23, 2019
    Assignee: SHOCKWAVE MEDICAL, INC.
    Inventor: Denny Kat-Kuoy
  • Patent number: 10314561
    Abstract: A tomographic image generation device acquires ultrasonic wave data and interference light data to be used for generating a tomographic image for one line in respective rotation positions of the transmitting and receiving unit by performing sampling respectively on an ultrasonic wave echo signal and an interference light signal obtained by driving the ultrasonic wave transmitting and receiving unit and the optical transmitting and receiving unit while rotating the transmitting and receiving unit. Then, the tomographic image generation device controls operation timing of the acquisition means so that a sampling period for performing sampling on the interference light signal for one line and a predetermined period from driving of the ultrasonic wave transmitting and receiving unit for ultrasonic wave oscillation are not overlapped.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: June 11, 2019
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventors: Ema Itoh, Isao Mori
  • Patent number: 10285773
    Abstract: A lithotripter includes a handle with a distal end and a proximal end, a driver resource contained within the handle, the driver resource having a driver resource distal end and a driver resource proximal end, and a probe housed within the handle, the probe having a probe distal end and a probe proximal end, the probe distal end terminating at the distal end of the apparatus at a point distal from the handle distal end, the probe proximal end terminating proximal to the driver resource proximal end. The lithotripter further includes a shielding insert surrounding at least a portion of the probe, the shielding insert having a shielding insert proximal end and a shielding insert distal end, the shielding insert proximal end terminating proximal to the proximal end of the driver resource, and the shielding insert distal end terminating distal to the distal end of the driver resource, the probe proximal end being contained within the handle.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: May 14, 2019
    Assignee: GYRUS ACMI, INC.
    Inventors: Richard C. Faherty, Lawrence J. St. George
  • Patent number: 10269340
    Abstract: An ultrasound beamformer may include an array of ultrasound transducer elements. Multiple signal transmitters may each generate an ultrasound signal that is different from the ultrasound signal generated by each of the others. The number of ultrasound transmitters may be no more than half the number of ultrasound transducer elements. Each multiplexer may have multiple signal inputs, each connected to a different one of the ultrasound signals; an output that drives the ultrasound transducer element; and a control input that controls which of the ultrasound signals at the signal inputs to the multiplexer is delivered to the output of the multiplexer based on a control signal. The controller may generate the control signals with a collective configuration that causes the array of ultrasound transducer elements to steer an/or focus a beam of ultrasound energy in one or more different ways at one or more different times.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: April 23, 2019
    Assignee: UNIVERSITY OF SOUTHERN CALIFORNIA
    Inventor: Jesse Yen
  • Patent number: 9987034
    Abstract: The present disclosure is directed to a fluid cooled ultrasonic surgical instrument and related systems and methods of use therefor. In some embodiments, the disclosed ultrasonic surgical instrument is adapted for used within an insufflated cavity or pneumoperitoneum of a patient. The instrument includes a housing having an elongate shaft, a waveguide disposed at a distal end of the shaft, a coolant inlet port defined in an outer surface of the housing, and a coolant pump disposed within the housing and configured to move coolant from the coolant inlet port to the waveguide. During use, insufflation gas from within the pneumoperitoneum is drawn into the instrument shaft by the coolant pump, and blown over the waveguide to provide cooling. The delivery of ultrasonic energy and activation of the pump may be controlled by a processor in response to user input and waveguide temperature.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: June 5, 2018
    Assignee: COVIDIEN LP
    Inventors: Anthony B. Ross, Robert B. Stoddard, James S. Cunningham, William J. Dickhans, Russell D. Hempstead, Eric R. Larson, Duane E. Kerr, William H. Nau, Jr., Arlen K. Ward
  • Patent number: 9936967
    Abstract: An object removal tool including a basket device having a basket section; a sheath on the basket device, where the sheath is adapted to longitudinally slide on the basket device; and a control connected to the basket device and the sheath. The control is configured to longitudinally move the sheath on the basket device to close the basket section on an object.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: April 10, 2018
    Assignee: Gyrus ACMI, Inc.
    Inventors: Nison Galperin, Carlo A. DiRusso
  • Patent number: 9795437
    Abstract: An electrosurgical treatment system includes an output section that supplies a high-frequency output to a treatment instrument, a detecting section that detects a voltage and an electric current of the high-frequency output in the output section, a phase-difference detecting section that calculates a phase difference between the detected voltage and electric current, and a control section that switches, on the basis of a change in the phase difference, a first phase for drying a biological tissue by applying the high-frequency output to the biological tissue while increasing the voltage to a second phase for coapting the biological tissue by performing, with a set value of a voltage determined according to a voltage value of the high-frequency output at an end point in time of the first phase, constant voltage control.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: October 24, 2017
    Assignee: OLYMPUS CORPORATION
    Inventors: Sadayoshi Takami, Tsuyoshi Hayashida
  • Patent number: 9656008
    Abstract: A rotatable operating head for removal of obstructive material from a target site in a body lumen or cavity is operably connected to a rotatable, translatable drive shaft that is driven by a drive motor and received through an elongated catheter. The operating head includes a plurality of differential cutting blades, with at least one of the cutting blades being a stepped blade, the stepped blade comprising a raised cutting surface positioned adjacent, or in proximity to, a shoulder region.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: May 23, 2017
    Assignee: Boston Scientific Limited
    Inventors: Edward I. Wulfman, Casey Torrance
  • Patent number: 9579114
    Abstract: Invasive side-firing electrohydraulic lithotripsy probes that creates a substantially annular shockwave to break up concretions are disclosed. Generally, the side-firing electrohydraulic lithotripsy probe includes a lithotripter tip including a first electrode and a second electrode. The first electrode is positioned at a distal end of the lithotripter tip and the second electrode is positioned in the lithotripter tip such that an end of the second electrode is coaxially aligned with an end of the first electrode. An electric arc between the first and second electrodes causes a shockwave to radiate radially from the lithotripter tip.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: February 28, 2017
    Assignee: Northgate Technologies Inc.
    Inventors: Robert R. Mantell, Stan J. Lipowski, Chuck Zander, Joanna L. Zander
  • Patent number: 9554816
    Abstract: A device for fracturing calcifications in heart valves including an expandable stabilizer (14) and expandable impactor arms (20) assembled on and deployed by a delivery system (10), wherein the delivery system (10) is operable to move the impactor arms (20), while in an expanded position, with respect to the stabilizer (14) with sufficient energy so as to fracture a calcification located in tissure which is sandwiched between the stabilizer (14) and the impactor arms (20).
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: January 31, 2017
    Assignee: Pi-Cardia Ltd.
    Inventor: Erez Golan
  • Patent number: 9498378
    Abstract: An ophthalmic apparatus for performing an ocular surgery may include an ophthalmic probe body having an inner cutting member at least partially disposed within and moveable relative to an aspiration tube within the probe body to facilitate flow of aspiration fluid. A motor within the body may be configured to actuate the inner cutting member relative to the aspiration tube.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: November 22, 2016
    Assignee: NOVARTIS AG
    Inventor: Brian W. McDonell
  • Patent number: 9474542
    Abstract: A transducer stack (10) includes rings (16) of piezo-electric ceramic alternating with metal electrodes (18) along a threaded central shaft (32) extending from a titanium back plate (20). A spacer or threaded element (14) threaded on to the shaft (32) holds the ceramic rings (16) and electrodes (18) in compression against the back plate (20). The transducer stack (10) is mountable eccentrically to a horn (12) of an ultrasonically-vibratable tool, away from an axis of an elongate waveguide (56) extending from the horn (12). The transducer stack (10) may vibrate in a flexural mode perpendicular to the waveguide (56), generating torsional mode ultrasonic vibrations in the horn (12) and waveguide (56), or in a flexural mode parallel to the waveguide (56), generating longitudinal mode ultrasonic vibrations in the horn (12) and waveguide (56).
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: October 25, 2016
    Assignee: SRA DEVELOPMENTS LTD.
    Inventors: James Anton Slipszenko, Michael James Ede, Stephen Michael Radley Young
  • Patent number: 9451978
    Abstract: An expandable cage is expanded within a narrowed region of a blood vessel. The expandable cage has openings therein so that plaque protrudes through the openings when the cage is expanded. A material removing element passes within the cage to remove the plaque extending into the openings. The openings are preferably formed by integrally formed elements which provide a smooth internal surface. The material removing element passes along the smooth internal surface when removing the plaque. A collection bag is coupled to the material removing element to capture the material which has been removed.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: September 27, 2016
    Assignee: Covidien LP
    Inventor: Stephen W. Boyd
  • Patent number: 9403039
    Abstract: A method of treating an ocular pathology by generating high intensity focused ultrasound onto at least one eye's area, the method comprises at least the following steps of: positioning onto the eye a device capable of directing high intensity focused ultrasound onto at least one annular segment, and generating high intensity focused ultrasound energy onto the segment to treat at least one annular segment in the eye. Another embodiment of the invention concerns a device for treatment of an ocular pathology comprising at least one eye ring wherein the proximal end of the eye ring is suitable to be applied onto the globe and a high intensity focused ultrasound beam generator to generate ultrasound beam fixed on the distal end of the eye ring capable of treating the whole circumference of the eye in one step.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: August 2, 2016
    Assignees: EYE TECH CARE, INSTITUIT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM)
    Inventors: Fabrizio Romano, Cyril Lafon, Jean-Yves Chapelon, Francoise Chavrier, Alain Birer
  • Patent number: 9345532
    Abstract: Various apparatus and methods for ablating tissue are described therein. In certain variations, a method for ablating tissue may include advancing one or more electrodes, e.g., a first electrode and a second electrode, to or near a target tissue in a subject. The electrodes may be energized such that the electrodes create a plasma arc. The plasma arc generates heat which desiccates or ablates the target tissue. An apparatus for ablating tissue may include an elongate instrument, e.g., a tube or rod. One or more electrodes, e.g., a first electrode and a second electrode, may be provided in the elongate instrument. The electrodes may be energized such that the electrodes create a plasma arc for generating heat to desiccate or ablate a target tissue.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: May 24, 2016
    Assignee: Broncus Medical Inc.
    Inventor: Michael D. Laufer
  • Patent number: 9282984
    Abstract: An ultrasound system has a catheter including an elongate flexible catheter body having at least one lumen extending longitudinally therethrough. An ultrasound transmission wire extends longitudinally through the lumen of the catheter body, and has a proximal region, a distal region, and an intermediate region between the proximal region and the distal region. A sonic connector is connected to the proximal region of the ultrasound transmission wire, and a distal head is positioned at the distal end of the catheter body and coupled to the distal region of the ultrasound transmission wire. The proximal region of the ultrasound transmission wire has a larger diameter than the intermediate region, the intermediate region is continuously tapered with a progressively decreasing diameter from its proximal end to its distal end, and the distal region has a greater diameter than the distal end of the intermediate region.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: March 15, 2016
    Assignee: Flowcardia, Inc.
    Inventor: Henry Nita
  • Patent number: 9204859
    Abstract: Described herein are methods and apparatus for detecting stones by ultrasound, in which the ultrasound reflections from a stone are preferentially selected and accentuated relative to the ultrasound reflections from blood or tissue. Also described herein are methods and apparatus for applying pushing ultrasound to in vivo stones or other objects, to facilitate the removal of such in vivo objects.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: December 8, 2015
    Assignee: University Of Washington Through Its Center For Commercialization
    Inventors: Michael Bailey, John Kucewicz, Wei Lu, Oleg Sapozhnikov, Paul Illian, Anup Shah, Barbrina Dunmire, Neil Owen, Bryan Cunitz, Peter Kaczkowski, Marla Paun
  • Patent number: 9194690
    Abstract: A torque transmission assembly comprising: (i) an optical fiber coupled to an optical sensing component and capable of rotating and translating the optical sensing component and of transmitting light to and from the optical sensing component; and (b) an annular structure surrounding the optical fiber, the annular structure in conjunction with said optical fiber transmits torque from a rotating component to the optical sensing component, wherein the annular structure does not include a steel wire torque spring.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: November 24, 2015
    Assignee: Corning Incorporated
    Inventors: Venkata Adiseshaiah Bhagavatula, Theresa Chang, Klaus Hartkorn, John Himmelreich
  • Patent number: 9176172
    Abstract: A power level identification circuit includes a power interface, a voltage conversion unit, a waveform detection unit, a signal pre-processing unit and a processing unit. The power interface receives electrical power and first signals indicating a level of the power. The voltage conversion unit receives the power from the power interface and converts the power. The waveform detection unit filters the power and obtains the first signals indicating power level. The signal pre-processing unit shapes the waveform of the first signals indicating power level and thereby generates second signals indicating power level. The processing unit identifies a level of the second signals indicating power level and switches to one of modes of the power level identification circuit corresponding to the identified level of the second signals indicating power level. A power level flag circuit and a power level supply system are also provided.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: November 3, 2015
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Ming-Yu Liao
  • Patent number: 9173771
    Abstract: A surgical device and procedure are provided for smoothly and easily accessing tissue to perform microsurgery, including a capsulotomy of a lens capsule of an eye. The device includes a handpiece with a tip for insertion into an incision in the cornea of the eye. A sliding element is disposed within the handpiece and a suction cup is mounted to the sliding element. The sliding element can be translated to move the suction cup into and out of the handpiece. A compression mechanism associated with the suction cup and the handpiece compresses the suction cup for deployment through the tip of the handpiece. The suction cup can expand inside the anterior chamber into a cutting position on the lens capsule. A cutting element mounted to the suction cup is used to cut a portion of the lens capsule and to remove the portion from the eye.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: November 3, 2015
    Assignee: Mynosys Cellular Devices, Inc.
    Inventor: Christopher Guild Keller
  • Patent number: 9168099
    Abstract: An apparatus is presented comprising an endoscope including a flexible shaft which has an active deflection section at a distal tip, a handle connected to a proximal end of the flexible shaft, a platform mounted to a top portion of the handle and oriented substantially in line with the longitudinal axis of the proximal end of a straight portion of the flexible shaft to provide a substantially straight entry into a working channel of the flexible shaft for an output accessory, a stone retrieval device insertable into the proximal end of the working channel of the endoscope, a lithotripsy shaft including one or more guide features at a distal end of the lithotripsy shaft to facilitate passage of wires or filaments of the stone retrieval device there through, and a lithotripsy shaft driver attached to the platform for driving the lithotripsy shaft under power.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: October 27, 2015
    Inventor: Lawrence J. St. George
  • Patent number: 9072534
    Abstract: An angioplasty catheter includes an elongated carrier, and an angioplasty balloon about the carrier in sealed relation thereto. The balloon is arranged to receive a fluid therein that inflates the balloon. The catheter further includes a shock wave generator within the balloon that forms a rapidly expanding and collapsing bubble within the balloon to form mechanical shock waves within the balloon. The expanding bubble forms a first shock and the collapsing balloon forms a second shock wave. The shock wave generator is arranged such that the energy of the first shock wave is greater than the energy of the second shock wave.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: July 7, 2015
    Assignee: SHOCKWAVE MEDICAL, INC.
    Inventors: John M. Adams, Clifton A. Alferness, Daniel Hawkins
  • Patent number: 9044619
    Abstract: A valvuloplasty system comprises a balloon adapted to be placed adjacent leaflets of a valve. The balloon is inflatable with a liquid. The system further includes a shock wave generator within the balloon that produces shock waves. The shock waves propagate through the liquid and impinge upon the valve to decalcify and open the valve.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: June 2, 2015
    Assignee: SHOCKWAVE MEDICAL, INC.
    Inventors: Daniel Hawkins, John M. Adams
  • Patent number: 9044618
    Abstract: A valvuloplasty system comprises a balloon adapted to be placed adjacent leaflets of a valve. The balloon is inflatable with a liquid. The system further includes a shock wave generator within the balloon that produces shock waves. The shock waves propagate through the liquid and impinge upon the valve to decalcify and open the valve.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: June 2, 2015
    Assignee: SHOCKWAVE MEDICAL, INC.
    Inventors: Daniel Hawkins, John M. Adams
  • Patent number: 9039728
    Abstract: A combined multi-lumen central access catheter and an embolic filter, further comprising an imaging modality to facilitate intravascular imaging of the filter.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: May 26, 2015
    Assignee: BIO2 MEDICAL, INC.
    Inventors: Luis F. Angel, Jeffrey N. Steinmetz, Daniel D. Sims
  • Patent number: 9039729
    Abstract: A combined multi-lumen central access catheter and an embolic filter, further comprising an imaging modality to facilitate intravascular imaging of the filter.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: May 26, 2015
    Assignee: BIO2 MEDICAL, INC.
    Inventors: Luis F. Angel, Jeffrey N. Steinmetz, Daniel D. Sims
  • Publication number: 20150133949
    Abstract: Devices and methods for removal of calculus (including for example, kidney stones) are disclosed. In an embodiment, a device for removal of kidney stones includes a substantially sealable pouch that can be inserted into the kidney for capturing a kidney stone. The pouch is also designed to permit fragmentation of the kidney stone inside the pouch, while preventing kidney stone fragments from escaping from the pouch. As a result, the likelihood of dispersing stone fragments during fragmentation of a large stone is greatly lessened.
    Type: Application
    Filed: May 16, 2013
    Publication date: May 14, 2015
    Inventors: Jeffrey A. Cadeddu, Stephen P. Faddegon, Heather E. Beardsley, Yung K. Tan, Ephrem O. Olweny, Jeffrey Gahan, Jodi Antonelli
  • Publication number: 20150133950
    Abstract: A lithotripter is provided that includes a lithotripsy apparatus for treatment of a urinary tract stone by fragmentation. The lithotripsy apparatus includes a lithotripsy wave guide shaft configured to transmit an energy form to at least one urinary tract stone. The lithotripter includes a sensing device configured to provide signal data for determining optimal application of energy during treatment with the lithotripsy apparatus. The lithotripter includes a processor configured to collect the signal data and provide feedback to a user. The processor has a control logic configured to determine at least one of: a) if the lithotripsy wave guide shaft is in contact with a tissue; b) if the lithotripsy wave guide shaft is in contact with a stone; c) type of stone; d) if a user is applying force in excess of a predetermined threshold; and e) physical characteristics of a stone. A method is also provided.
    Type: Application
    Filed: September 15, 2014
    Publication date: May 14, 2015
    Inventors: Kurt Shelton, Lawrence J. St. George, Artemie G. Gavala
  • Patent number: 9011463
    Abstract: An apparatus includes a balloon adapted to be placed adjacent a calcified region of a body. The balloon is inflatable with a liquid. The apparatus further includes a shock wave generator within the balloon that produces shock waves that propagate through the liquid for impinging upon the calcified region adjacent the balloon. The shock wave generator includes a plurality of shock wave sources distributed within the balloon.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: April 21, 2015
    Assignee: Shockwave Medical, Inc.
    Inventors: John Adams, Thomas G. Goff, Doug Hakala
  • Patent number: 9011462
    Abstract: A system for breaking obstructions in body lumens includes a catheter including an elongated carrier, a balloon about the carrier in sealed relation thereto, the balloon being arranged to receive a fluid therein that inflates the balloon, and an arc generator including at least one electrode within the balloon that forms a mechanical shock wave within the balloon. The system further includes a power source that provides electrical energy to the arc generator.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: April 21, 2015
    Assignee: Shockwave Medical, Inc.
    Inventors: John M. Adams, Daniel Hawkins
  • Patent number: 9005226
    Abstract: A fluid ejection device includes a pulsating flow generation section adapted to eject a fluid in a pulsed manner; a fluid supply section adapted to supply the pulsating flow generation section with the fluid; a fluid supply tube having flexibility adapted to communicate the pulsating flow generation section and the fluid supply section with each other; and a drive control section adapted to perform drive control of the pulsating flow generation section and the fluid supply section, wherein the drive control section starts up the pulsating flow generation section, makes the fluid supply section supply the fluid at a first flow rate for a predetermined time period, and then makes the fluid supply section supply the fluid at a second flow rate lower than the first flow rate after the predetermined time period elapses.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: April 14, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Takahiro Matsuzaki, Hideki Kojima, Shigeo Sugimura
  • Patent number: 9005216
    Abstract: A system that breaks calcium in a liquid includes a catheter including first and second electrodes arranged to receive there-across a high electrical voltage at an initial low current. The high electrical voltage causes an electrical arc to form across the electrodes creating a gas bubble within the liquid, a high current to flow through the electrodes, and a mechanical shock wave. A power source provides the electrodes with the high electrical voltage at the initial current and terminates the high electrical voltage in response to the high current flow through the electrodes.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: April 14, 2015
    Assignee: Shockwave Medical, Inc.
    Inventors: Doug Hakala, John Adams, Randy Holmberg
  • Patent number: 8998928
    Abstract: The present invention improves significantly the success rate of lithotripsy and reduces the risk of tissue damage, by injecting a temporary plug in front, and optionally behind a concretion (for extracorporeal lithotripsy) or behind a concretion (for intracorporeal lithotripsy). One aspect of the present invention relates to injecting an inverse thermosensitive polymer solution into a lumen, thereby preventing the migration of a concretion, or its fragments, upon extracorporeal or intracorporeal lithotripsy.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: April 7, 2015
    Assignee: Genzyme Corporation
    Inventors: Alexander Schwarz, W. Scott McDougal
  • Patent number: 8993019
    Abstract: The invention relates to the encapsulation of oxidizable lipids. In particular, the invention provides an oil-in-water emulsion comprising droplets of a core lipid coated with nanoemulsion droplets, wherein the nanoemulsion droplets comprise a surface lipid coated with protein. The emulsions of the invention provide an oxidatively stable form of the lipid, which can be added to foods and cosmetics requiring a long shelf-life.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: March 31, 2015
    Assignee: Massey University
    Inventors: Harjinder Singh, Aiqian Ye, Xiang-Qian Zhu
  • Publication number: 20150088154
    Abstract: Embodiments shown and described herein relate, in general, to systems and methods for driving ultrasonic transducers and, more particularly, to systems and methods for controlling the output of high power ultrasonic transducers and improving performance of ultrasonic systems.
    Type: Application
    Filed: September 25, 2013
    Publication date: March 26, 2015
    Inventors: Jeffrey J. Vaitekunas, Emery S. Rose
  • Patent number: 8986322
    Abstract: An apparatus for using hydrodynamic cavitation in medical treatment such as destroying kidney stones or killing infected cancer cells. This apparatus comprises a tank used as a container for a fluid, a compressor connected to the tank to maintain the input pressure of the fluid, a tubing wherein the fluid flows, a probe in which the cavitation occurs, a valve positioned inside the tubing, allowing the fluid to flow into the probe, a filter positioned inside the tubing, preventing the predetermined size particles flowing into the probe, a fitting connecting the probe to the tubing, a flowmeter measuring the volume flow rate of the fluid through the probe, an image capturing unit capturing the sequential images of bubbles growing and bubbles collapsing after the bubbles exit from the probe, a positioning assembly which adjusts the distance between the probe and the target surface, and a control and data acquisition unit.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: March 24, 2015
    Assignee: Sabanci Universitesi
    Inventor: Ali Kosar
  • Patent number: 8979776
    Abstract: A lithotripsy system capable of 3D tracking monitors the acoustic reflection from the stone in order to focus the shock wave on the stone regardless of shock wave displacement or stone movement. The tracking and focusing is based on a phased array concept, allowing the lithotripsy head to remain stationary and well coupled to the body. An alternate shock wave steering is based on refraction by a variable liquid wedge.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: March 17, 2015
    Inventors: Daniel Gelbart, Lindsay Machan
  • Publication number: 20150073430
    Abstract: Described herein are low-profile electrodes for use with an angioplasty shockwave catheter. A low-profile electrode assembly may have an inner electrode, an insulating layer disposed over the inner electrode such that an opening in the insulating layer is aligned with the inner electrode, and an outer electrode sheath disposed over the insulating layer such that an opening in the outer electrode sheath is coaxially aligned with the opening in the insulating layer. This layered configuration allows for the generation of shockwaves that propagate outward from the side of the catheter. In some variations, the electrode assembly has a second inner electrode, and the insulating layer and outer electrode may each have a second opening that are coaxially aligned with the second inner electrode. An angioplasty shockwave catheter may have a plurality of such low-profile electrode assemblies along its length to break up calcified plaques along a length of a vessel.
    Type: Application
    Filed: October 15, 2014
    Publication date: March 12, 2015
    Inventors: Doug HAKALA, John M. ADAMS, Khoi T. LE, Show-Mean Steve WU
  • Patent number: 8968329
    Abstract: A surgical retrieval apparatus includes a handle including an elongated sleeve extending therefrom that, together cooperate to define a lumen therethrough. A shaft having an end effector assembly disposed at a distal end thereof and a plunger disposed at a proximal end thereof is selectively translatable between a first position and a second position, wherein the end effector assembly extends from the sleeve. An articulation mechanism is configured to articulate the end effector assembly relative to the shaft. A specimen retrieval bag is coupled to the end effector assembly and is deployable to an extended position upon movement of the end effector assembly to the second position.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: March 3, 2015
    Assignee: Covidien LP
    Inventor: Ramiro Cabrera
  • Patent number: 8956371
    Abstract: A system for breaking obstructions in body lumens includes a catheter including an elongated carrier, a balloon about the carrier in sealed relation thereto, the balloon being arranged to receive a fluid therein that inflates the balloon, and an arc generator including at least one electrode within the balloon that forms a mechanical shock wave within the balloon. The system further includes a power source that provides electrical energy to the arc generator.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: February 17, 2015
    Assignee: Shockwave Medical, Inc.
    Inventors: Daniel Hawkins, Clifton A. Alferness, John M. Adams
  • Patent number: 8956374
    Abstract: A system for breaking obstructions in body lumens includes a catheter including an elongated carrier, a balloon about the carrier in sealed relation thereto, the balloon being arranged to receive a fluid therein that inflates the balloon, and an arc generator including at least one electrode within the balloon that forms a mechanical shock wave within the balloon. The system further includes a power source that provides electrical energy to the arc generator.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: February 17, 2015
    Assignee: Shockwave Medical, Inc.
    Inventors: Daniel Hawkins, Clifton A. Alferness, John M. Adams