Catheter Patents (Class 600/466)
  • Patent number: 10383684
    Abstract: Apparatus and methods are provided for accessing a region within a patient's body and performing a procedure therein that includes a catheter including a tubular member comprising a proximal end, a distal end sized for introduction into a patient's body, an imaging assembly on the distal end, and a substantially transparent expandable member attached to the tubular member distal end such the imaging assembly is disposed within an interior of the expandable member, the imaging assembly imaging through a surface of the expandable member. The tubular member includes a drainage lumen communicating one or more drainage ports on the tubular member distal end proximal to the balloon for aspirating fluid from the patient's body. The catheter may be used to access a pericardial space and an ablation probe may be introduced through the catheter to treat heart tissue while fluid is infused and/or aspirated via the drainage ports.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: August 20, 2019
    Inventors: Randall J. Lee, Stephen A. Leeflang, Christian S. Eversull
  • Patent number: 10363395
    Abstract: The present invention relates to a direction-controllable drug injection catheter. According to the present invention, provided is the catheter extending along a central axis “A” including a drug injection part in which a drug injection channel has been formed; a channel opening and closing means which opens and closes the drug injection channel; and a steering structure which is rotationally asymmetric with respect to the central axis “A” and varies according to a pressure change of the drug injection channel for the purpose of steering.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: July 30, 2019
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Doo Yong Lee, Hye Hyun Han, Yun Jin Gu, Seung Gyu Kang, Myeong Jin Kim, Cheong Jun Kim, Seong Pil Byeon, Young Gi Jung, Su Bon Kim, Hyun Seok Lee, Dong Myoung Lee, Su Hwan Park, Ji Hye Hwang
  • Patent number: 10238299
    Abstract: At least a tip portion of a puncture needle 15 is inserted into a subject. The puncture needle 15 includes a light guide member which guides light from a laser unit 13, and a light emission unit which is provided in the vicinity of the tip portion and emits light guided by the light guide member, and generates a photoacoustic wave caused by light from the light emission unit in the tip portion. A probe 11 detects the photoacoustic wave from the puncture needle 15 in a state where the puncture needle 15 is inserted into the subject. A Photoacoustic image generation unit 25 generates a photoacoustic image based on the detected photoacoustic wave. A Light source control unit 30 controls the amount of light emitted from the light emission unit based on the photoacoustic image.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: March 26, 2019
    Assignee: FUJIFILM Corporation
    Inventor: Dai Murakoshi
  • Patent number: 10194994
    Abstract: A system and method for obtaining an OIS coordinate frame comprising an electronic control unit configured to determine a local 3D electric field loop, create a zero mean version of E(t) over a depolarization interval, compute an ? value at each of a plurality of time intervals, compute an initial estimate of ? from a cross product of E and the ? value for each of the plurality of time intervals, average the initial estimate of ? from each of the plurality of time for a best estimate of ?, determine a plurality of â(?) values and using the corresponding {circumflex over (n)}(?) values, compute a composite match score, and choose at least one best value for â and a best value for {circumflex over (n)}.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: February 5, 2019
    Assignee: St. Jude Medical, Cardiology Division, Inc.
    Inventors: D. Curtis Deno, Ram K. Balachandran, Stéphane Massé
  • Patent number: 10098616
    Abstract: Disclosed herein is an insertable probe for diagnosis of lesional tissue in real time. The insertable probe includes a guide needle inserted into the human body and having a hollow shape of a predetermined length, a storage connected to the guide needle, a tissue collection portion collecting a predetermined amount of tissue in the human body and moving the collected tissue to the storage through the guide needle, and an inspection unit inspecting the tissue stored in the storage. A method of manufacturing an electrode using the same is also disclosed.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: October 16, 2018
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jong Hyun Lee, Giseok Kang, Jae-Cheon Kim
  • Patent number: 10064598
    Abstract: A method for acoustic tomography within a patient may include generating a focused ultrasonic signal using a transducer is provided; the ultrasonic signal forming a path within the patient. The method includes directing the ultrasonic signal on a spot within the patient; scanning the spot in a predetermined pattern about a volume within the patient; receiving an ultrasonic echo in the transducer; converting the ultrasonic echo into a voltage; selecting a frequency band from the voltage; amplifying the voltage in the selected frequency band with a processing circuit; and generating an image of the volume within the patient structure utilizing the amplified voltage. A method for recanalization of a blood vessel including the above acoustic tomography steps is also provided.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: September 4, 2018
    Assignee: Volcano Corporation
    Inventors: Cheryl Rice, David Sheehan
  • Patent number: 9993614
    Abstract: Various embodiments provide a catheter positioning device with components for controlling actuators of the catheter in multiple axes. A catheter may be attached to a sled member by a modular plate with one or more actuator interfaces that may couple with the actuators of a catheter handle. One or more motors or drives in the sled member may move the actuator interfaces of the modular plate to control one or more actuators on the catheter in different axes. In various embodiments the sled member may have a clam shell design in which two or more sides of the sled member close around the catheter handle. In further embodiments, the sled member may include adjustable faces that can fit different types of modular plates and thereby control actuators on different types of the catheter.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: June 12, 2018
    Assignee: CATHETER PRECISION, INC.
    Inventors: Robert Pacheco, Steve Foley, David Jenkins
  • Patent number: 9848907
    Abstract: A rotational atherectomy system may include a drive shaft, a motor, and a clutch with a threshold torque where the clutch may include a motor plate rotationally connected to the motor, a drive shaft plate rotationally connected to the drive shaft, and a biasing clutch configured to rotationally engage the motor plate and the drive shaft plate, wherein torques less than the threshold torque are transmitted completely between the motor plate and the drive shaft plate, which remain rotationally coupled by static friction, and wherein torques greater than the threshold torque cause the motor plate and the drive shaft plate to rotate relative to one another and cause a residual torque to be transmitted between the motor and the drive shaft, the residual torque being less than the threshold torque and being determined by a kinetic coefficient of friction.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: December 26, 2017
    Assignee: Cardiovascular Systems, Inc.
    Inventors: Joseph Higgins, Jeffrey Allen McBroom
  • Patent number: 9717475
    Abstract: Rotational intravascular ultrasound (IVUS) imaging devices, systems, and methods are provided. Some embodiments are directed to transducer mounting configurations that enable polymer piezoelectric micro-machined ultrasonic transducers (PMUTs) to be used with a Doppler color flow rotational IVUS imaging system. In one embodiment, a rotational intravascular ultrasound (IVUS) device includes: a flexible elongate body; a piezoelectric micromachined ultrasound transducer (PMUT) coupled to a distal portion of the flexible elongate body; and an application-specific integrated circuit (ASIC) coupled to the distal portion of the flexible elongate body. The ASIC is electrically coupled to the PMUT and includes a pulser, an amplifier, a protection circuit, and timing and control circuitry for coordinating operation of the pulser, amplifier, and protection circuit.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: August 1, 2017
    Assignee: Volcano Corporation
    Inventor: Paul Douglas Corl
  • Patent number: 9629654
    Abstract: A thrombus removal apparatus (10) includes a catheter (12) having at its distal end (14) a solenoid coil section (16) within which there is disposed a piercing element (20) made of electromagnetic material. Within the solenoid coil section (16) there is provided a solenoid coil (26) which can be powered to generate an electromagnetic field which causes the piercing element (20) to reciprocate into and out of the coil section (16), in practice to pierce into and fragment a thrombus disposed in a patient's vessel. An aspiration unit may be provided for aspirating thrombus fragments into the assembly (10) for removal from the patient's vasculature. The apparatus (10) is able to remove dense thrombus material from within a patient, which cannot be otherwise removed by means of thrombolytic agents.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: April 25, 2017
    Assignee: Cook Medical Technologies LLC
    Inventor: Torben Peter Andersen
  • Patent number: 9402646
    Abstract: In a method for re-entry from extraluminal space into the central lumen of a vessel, a guidewire is advanced into the extraluminal space of the vessel, and then a directional catheter is advanced over the guidewire through the extraluminal space. Thereafter, the guidewire is removed from the directional catheter, an ultrasound device is placed through the directional catheter, and the ultrasound device is advanced through the extraluminal space into the central lumen and then activated.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: August 2, 2016
    Assignee: FLOWCARDIA, INC.
    Inventor: Henry Nita
  • Patent number: 9367965
    Abstract: The invention relates to systems and methods for three dimensional imaging of tissue. The invention provides systems and methods to provide a representation of tissue from three-dimensional data in the form of a montage of images having an indication of a spatial registration among the images.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: June 14, 2016
    Assignee: VOLCANO CORPORATION
    Inventor: Nathaniel J. Kemp
  • Patent number: 9314222
    Abstract: A method of operating a remote medical navigation system using ultrasound, employs ultrasound imaging from a medical device to supplement or to replace conventional x-ray imaging of the operating region during navigation.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: April 19, 2016
    Assignee: STEREOTAXIS, INC.
    Inventors: Francis M. Creighton, IV, Rogers C. Ritter, Raju R. Viswanathan, Nathan Kastelein, Jeffrey M. Garibaldi, William Flickinger
  • Patent number: 9254119
    Abstract: Disclosed herein is an ultrasound probe which may adjust curvature of an acoustic lens using a shape memory alloy. The ultrasound probe includes an acoustic lens, a focus adjusting unit installed on the acoustic lens and deforming the shape of the acoustic lens to adjust the focus of ultrasonic waves radiated through the acoustic lens, and a current applying unit applying current to the focus adjusting unit to contract or expand the focus adjusting unit.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: February 9, 2016
    Assignee: SAMSUNG MEDISON CO., LTD.
    Inventor: Beom Keun Yoo
  • Patent number: 9180043
    Abstract: An apparatus to minimize and/or eliminate the effects associated with reperfusion injury consisting of an external pump, heat exchanger and control unit creating a flow loop whereby blood is moved from the body via a pump, cooled by an external heat exchanger and reintroduced into a specific location, thereby locally cooling the surrounding tissue and inducing localized hypothermia to minimize tissue injury resulting from ischemia and the effects associated with reperfusion injury as an obstruction is removed and normal blood flow is restored and including the ability to locally measure pressure and temperature in the body.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: November 10, 2015
    Assignee: Focal Cool, LLC
    Inventors: Denise R. Merrill, Todd J. Nilsen, Jennifer Ellen Akers, Kyle Stever, Moshe Laifenfeld, Ravi Ramachandran
  • Patent number: 9149257
    Abstract: An interventional medical device is provided that incorporates a forward-directed ultrasound imaging system integrated into a single minimally invasive device. The medical device can be in the form of catheters and interventional devices having a tapered distal tip, particularly those suitable for minimally invasive direct introduction into the human or other mammalian body. The imaging system comprises one or more small ultrasound transducers that can be permanently integrated into the device or integrated into an interchangeable ultrasound transducer that may be inserted into and removed from the device to customize the device for a particular use. An ultrasound system can be provided in the device either alone or in combination with fiber optic imaging to provide a range of forward imaging and therapeutic capabilities of the device for direct access to a target site from the skin via an introducer needle.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: October 6, 2015
    Assignee: Perceptive Navigation LLC
    Inventor: Theodore P. Abraham
  • Patent number: 9084575
    Abstract: An imaging system comprises a catheter having a lumen, a rotatable imaging probe within the catheter lumen including a distal transducer and first and second conductors coupled to the transducer, and a coupler that couples the rotatable first and second conductors to non-rotatable third and fourth conductors, respectively. The coupler includes a rotary capacitive coupler.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: July 21, 2015
    Assignee: ACIST Medical Systems, Inc.
    Inventors: Thomas C. Moore, Robert Zelenka
  • Patent number: 9039626
    Abstract: The present invention provides minimally invasive imaging probe/medical device having a frictional element integrated therewith for reducing non-uniform rotational distortion near the distal end of a medical device, such as an imaging probe which undergoes rotational movement during scanning of surrounding tissue in bodily lumens and cavities.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: May 26, 2015
    Assignee: SUNNYBROOK HEALTH SCIENCES CENTRE
    Inventor: Brian Kent Courtney
  • Patent number: 9005144
    Abstract: An ultrasound medical treatment system includes an end effector insertable into a patient. The end effector includes a tissue-retaining device. The tissue-retaining device includes a first tissue-retaining member having an ultrasound medical-treatment transducer and includes a second tissue-retaining member. The first and second tissue-retaining members are operatively connected together to retain patient tissue between the first and second tissue-retaining members and to release patient tissue so retained. In one example, the second tissue-retaining member has an ultrasound reflector. In the same or a different example, the ultrasound medical-treatment transducer is an ultrasound imaging and medical-treatment transducer.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: April 14, 2015
    Inventors: Michael H. Slayton, Inder Raj Makin, Robert Dunki-Jacobs, Richard C. Pellegrino
  • Publication number: 20150094594
    Abstract: When transesophageal echocardiography is used to obtain a transgastric short axis view of the left ventricle of the heart, the best place to position the transducer is in the fundus of the stomach, aimed up through the left ventricle. The probes disclosed herein facilitate placement of the transducer in the optimum position within the fundus, despite wide variations in the distance between the lower esophageal sphincter and the fundus among different subjects. In one preferred embodiment, the ultrasound probe uses a bending section with a series of vertebrae and stiffening that is more flexible proximally and less flexible distally, which causes the probe to bend relatively sharply at the point where the probe exits the lower esophageal sphincter.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 2, 2015
    Applicant: Imacor Inc.
    Inventors: Edward Paul Harhen, Robert J. Krupa
  • Patent number: 8996099
    Abstract: A catheter imaging probe for a patient. The probe includes a conduit through with energy is transmitted. The probe includes a first portion through which the conduit extends. The probe includes a second portion which rotates relative to the conduit to redirect the energy from the conduit. A method for imaging a patient. The method includes the steps of inserting a catheter into the patient. There is the step of rotating a second portion of the catheter relative to a conduit extending through a first portion of the catheter, which redirects the energy transmitted through the conduit to the patient and receives the energy reflected back to the second portion from the patient and redirects the reflected energy to the conduit.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: March 31, 2015
    Assignee: Board of Regents, The University of Texas System
    Inventors: Marc D. Feldman, Thomas E. Milner, Shaochen Chen, Jihoon Kim, Li-Hsin Han, Jung-hwan Oh, Lee Ho
  • Patent number: 8989849
    Abstract: The present invention relates to a rotating catheter tip for optical coherence tomography based on the use of an optical fiber that does not rotate, that is enclosed in a catheter, which has a tip rotates under the influence of a fluid drive system to redirect light from the fiber to a surrounding vessel and the light reflected or backscattered from the vessel back to the optical fiber.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: March 24, 2015
    Assignee: Board of Regents, the University of Texas System
    Inventors: Thomas E. Milner, Marc D. Feldman, Jung-Hwan Oh, Shaochen Chen, Paul Castella
  • Patent number: 8989844
    Abstract: The invention concerns an imaging system to monitor at least one surgical instrument in an operative site inside a volume of the body of an animal, comprising: at least one endoscopic camera to obtain endoscopic data on the operative site, at least one ultrasound imaging device to obtain ultrasound data on the operative site, and a processing device to process the endoscopic and ultrasound data. The imaging system further comprising at least three markers intended to be positioned in the operative site, said markers being mobile relative to the instrument, each marker being adapted to be detected both by the endoscopic camera and by the ultrasound imaging device, so as to permit cross-mapping of the endoscopic and ultrasound data by the processing means.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: March 24, 2015
    Assignees: Endocontrol, Universite Joseph Fourier—Grenoble 1
    Inventors: Philippe Cinquin, Pierre Mozer, Sandrine Voros, Jean-Alexandre Long, Josselin Duchateau, Alexandre Moreau-Gaudry, Clement Vidal, Patrick Henri
  • Publication number: 20150065887
    Abstract: An ultrasound probe including a housing, a head part provided on the housing so as to enable expansion and contraction, an array provided in the housing and having one or more transducers, a rotary part provided at a rear surface of the array to rotate the array, a pressing part configured to expand the head part by applying pressure to the head part, and a control part, when the head part is inserted into a target object, configured to allow the array to control the pressing part such that the head part is expanded, and allow the array to be rotated in the expanded head part, by controlling the rotary part, thereby relieving pain involved with insertion of the ultrasound probe.
    Type: Application
    Filed: September 5, 2014
    Publication date: March 5, 2015
    Inventors: Moon Kyu PARK, Jong Sik KIM, Gil Ju JIN, Jeong Un YOON
  • Patent number: 8961425
    Abstract: An intravascular ultrasound probe is disclosed, incorporating features for utilizing an advanced transducer technology on a rotating transducer shaft. In particular, the probe accommodates the transmission of the multitude of signals across the boundary between the rotary and stationary components of the probe required to support an advanced transducer technology. These advanced transducer technologies offer the potential for increased bandwidth, improved beam profiles, better signal to noise ratio, reduced manufacturing costs, advanced tissue characterization algorithms, and other desirable features. Furthermore, the inclusion of electronic components on the spinning side of the probe can be highly advantageous in terms of preserving maximum signal to noise ratio and signal fidelity, along with other performance benefits.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: February 24, 2015
    Assignee: Volcano Corporation
    Inventor: Paul Douglas Corl
  • Patent number: 8936554
    Abstract: The invention relates to a method for ultrasonic imaging of an organ in a patient's body through a part of the patient's respiratory tract, including: arranging an ultrasonic imaging device in or on the patient's body; introducing a flexible catheter carrying at least one inflatable member into the respiratory tract; positioning the inflatable member at a predetermined location in the respiratory tract; filling the inflatable member with an ultrasonic transmission fluid through the flexible catheter; and transmitting ultrasonic waves from the imaging device through the transmission fluid in the inflatable member to the organ to be imaged. The inflatable member is positioned in the respiratory tract by manipulating guide means that are attached to or integrated with the flexible catheter. The invention further relates to an ultrasonic imaging system for carrying out this method and to an assembly means for use in such an ultrasonic imaging system.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: January 20, 2015
    Assignee: Stroke2Prevent B.V.
    Inventor: Arno Nierich
  • Patent number: 8934962
    Abstract: Electrophysiology mapping and visualization systems are described herein where such devices may be used to visualize tissue regions as well as map the electrophysiological activity of the tissue. Such a system may include a deployment catheter and an attached hood deployable into an expanded configuration. In use, the imaging hood is placed against or adjacent to a region of tissue to be imaged in a body lumen that is normally filled with an opaque bodily fluid such as blood. A translucent or transparent fluid, such as saline, can be pumped into the imaging hood until the fluid displaces any blood, thereby leaving a clear region of tissue to be imaged via an imaging element in the deployment catheter. A position of the catheter and/or hood may be tracked and the hood may also be used to detect the electrophysiological activity of the visualized tissue for mapping.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: January 13, 2015
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Vahid Saadat, Ruey-Feng Peh, Edmund A. Tam
  • Patent number: 8932226
    Abstract: An ultrasound catheter is described herein for insertion into a cavity such as a blood vessel to facilitate imaging within a vasculature. The catheter comprises an elongate flexible shaft, a capacitive microfabricated ultrasonic transducer, and a sonic reflector. The elongate flexible shaft has a proximate end and a distal end. A capacitive microfabricated ultrasonic transducer (cMUT) is mounted to the shaft near the distal end. The reflector is positioned such that a reflective surface redirects ultrasonic waves to and from the transducer. In other embodiments, the catheter comprises a plurality of cMUT elements and operates without the use of reflectors. In further embodiments, integrated circuitry is incorporated into the design.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: January 13, 2015
    Assignee: Volcano Corporation
    Inventors: Norman Hugh Hossack, Blair Walker, Stephen Charles Davies, Donald Stanley Mamayek, John F. Sheridan
  • Patent number: 8932223
    Abstract: A design and a fabrication method for an intravascular imaging and therapeutic catheters for combined ultrasound, photoacoustic, and elasticity imaging and for optical and/or acoustic therapy of hollow organs and diseased blood vessels and tissues are disclosed in the present invention. The invention comprises both a device—optical fiber-based intravascular catheter designs for combined IVUS/IVPA, and elasticity imaging and for acoustic and/or optical therapy—and a method of combined ultrasound, photoacoustic, and elasticity imaging and optical and/or acoustic therapy. The designs of the catheters are based on single-element catheter-based ultrasound transducers or on ultrasound array-based units coupled with optical fiber, fiber bundles or a combination thereof with specially designed light delivery systems. One approach uses the side fire fiber, similar to the one utilized for biomedical optical spectroscopy.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: January 13, 2015
    Assignee: Board of Regents, The University of Texas System
    Inventors: Stanislav Emelianov, Andrei Karpiouk, Bo Wang
  • Publication number: 20150011891
    Abstract: A cable connection structure for connecting a plurality of cables to an electrode provided on a substrate includes an extended portion that is provided integrally with the plurality of cables, extends from the plurality of cables, and covers at least a connection part between the plurality of cables and the electrode.
    Type: Application
    Filed: September 24, 2014
    Publication date: January 8, 2015
    Applicant: OLYMPUS CORPORATION
    Inventor: Junya YAMADA
  • Patent number: 8929969
    Abstract: A catheter assembly for use in an anatomy can include an elongated body, which can have a proximal end and a distal end. The body can also define a lumen from the proximal end to the distal end. The assembly can include at least one electrode, which can be coupled to the distal end to sense an electrical activity within the anatomy. The assembly can include a core wire, which can be received within the lumen from the proximal end to the distal end. The core wire can be configured to move the distal end from a first configuration to a second configuration. The assembly can also include a necked portion, which can be formed between the proximal end and the distal end to provide increased stiffness to the distal end of the body.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: January 6, 2015
    Assignee: Medtronic Ablation Frontiers LLC
    Inventors: Edward M. Gillis, Christine Beltran
  • Patent number: 8905936
    Abstract: A catheter includes a catheter main body provided with a window portion through which an inspection wave passes, a drive shaft provided with a detection unit detecting the inspection wave and concurrently installed advanceably and retractably in an axial direction inside the catheter main body, and a bias member biasing a force onto the drive shaft for moving the drive shaft forward toward the distal side thereof.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: December 9, 2014
    Assignee: Terumo Kabushiki Kaisha
    Inventor: Shigenobu Iwahashi
  • Patent number: 8884989
    Abstract: A system and method for generating a fused image is provided. The system comprises processing circuitry configured to access a plurality of images, group the images into a plurality of sets, fuse the images of each set to form a plurality of fused images and fuse the fused images to form a final fused image.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: November 11, 2014
    Assignee: Indian Institute of Technology Bombay
    Inventors: Subhasis Chaudhuri, Ketan Kotwal, Shanmuganathan Raman
  • Patent number: 8876722
    Abstract: An endoventricular injection catheter with integrated echocardiographic capability enables injections into heart tissue under visualization. The catheter includes an elongated body having a distal end and an imaging core arranged to be inserted into a heart. The imaging core is arranged to transmit ultrasonic energy and to receive reflected ultrasonic energy at the distal end to provide electrical signals representing echocardiographic images to enable cardiac visualization. The catheter further includes an injector carried on the elongated body with the imaging core. The injector is arranged to inject a therapeutic agent into tissue of the heart visualized by the imaging core.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: November 4, 2014
    Assignee: ACIST Medical Systems, Inc.
    Inventors: Kendall R. Waters, Thomas C. Moore, Robert Zelenka, Paul Zalesky
  • Patent number: 8876723
    Abstract: Catheter navigation is coupled with ultrasound imaging to yield a context map showing the location on a heart of the ultrasonically imaged frame.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: November 4, 2014
    Assignee: St. Jude Medical, Atrial Fibrillation Division, Inc.
    Inventor: John A. Hauck
  • Patent number: 8870779
    Abstract: A medical imaging system for imaging a patient's body includes a catheter having a position sensor and an ultrasonic imaging sensor wherein the position sensor transmits electrical signals indicating positional information of the catheter in the patient's body and the ultrasonic imaging sensor transmits ultrasonic energy at a target in the patient's body, receives ultrasonic echoes reflected from the target and transmits signals relating to the reflected ultrasonic echoes. A positioning processor is connected to the catheter for determining its positional information based on the electrical signals transmitted by the position sensor. The system includes a display and an image processor connected to the catheter, the positioning processor and the display. The image processor generates an ultrasonic image of the target and depicts the generated ultrasound image on the display in the same orientation as the catheter in the patient's body based on positional information from the position sensor.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: October 28, 2014
    Assignee: Biosense Webster, Inc.
    Inventors: Andres Claudio Altmann, Assaf Govari
  • Patent number: 8864675
    Abstract: An improved catheter is provided. The catheter may include a deflectable member located at a distal end of a catheter body. The deflectable member may comprise an ultrasound transducer array. The deflectable member may be interconnected to the catheter body by a live hinge. The catheter may include a lumen extending from a proximal end of the catheter body to the distal end. The lumen may be used to deliver an interventional device to a point distal to the distal end of the catheter body. The deflectable member may be selectively deflectable in a pivot-like manner through an arc of at least 90 degrees. In embodiments where the deflectable member includes an ultrasound transducer array, the ultrasound transducer array may be operable to image both when aligned with the catheter body and when pivoted relative to the catheter body.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: October 21, 2014
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Dennis R. Dietz, Curtis J. Franklin, John L. Loewen, David J. Messick, Craig T. Nordhausen, Clyde G. Oakley, Ryan C. Patterson, Jim H. Polenske, Shawn D. Quick, Daniel H. Todd, Thomas L. Tolt, David W. Wilson
  • Patent number: 8852112
    Abstract: An improved catheter is provided. The catheter may include a deflectable member located at a distal end of the catheter. The deflectable member may comprise an ultrasound transducer array. The catheter may include a lumen extending from a proximal end of the catheter to the distal end. The lumen may be used to deliver an interventional device to a point distal to the distal end of the catheter. The deflectable member may be selectively deflectable in a pivot-like manner through an arc of at least 90 degrees. In embodiments where the deflectable member includes an ultrasound transducer array, the ultrasound transducer array may be operable to image both when aligned with the catheter and when pivoted relative to the catheter. When pivoted relative to the catheter, the ultrasound transducer array may have a field of view distal to the distal end of the catheter.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: October 7, 2014
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Paul A. Bielewicz, Richard W. Denny, Dennis R. Dietz, Michael J. Fife, Joseph A. Huppenthal, David J. Messick, Craig T. Nordhausen, Clyde G. Oakley, Ryan C. Patterson, Jim H. Polenske
  • Patent number: 8852113
    Abstract: In a distal end portion of a flexible sheath which is inserted integrally with an ultrasound transducer array, cell collecting hole portions each including a through-hole which allows a distal end portion outer periphery and an internal space of the flexible sheath to communicate with each other is provided, an edge for specimen cutting is formed at an opening portion of an outer circumferential side of each of the cell collecting hole portions, and after the flexible sheath is caused to reach a lesion part or the like of a subject, specimen collection is performed without additionally inserting a biological forceps or the like into the flexible sheath, whereby a specimen of a target site such as a lesion part is reliably collected without unnecessarily increasing the number of times of insertion and extraction of an instrument into and from a body, and the burden on an examinee is reduced.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: October 7, 2014
    Assignee: Olympus Medical Systems Corp.
    Inventors: Kenichi Nishina, Takuya Imahashi
  • Patent number: 8845558
    Abstract: Embodiments of the invention relate to a catheter having an ultrasound energy emitting region that is both rotatable about and slidable along the shaft of the catheter. One embodiment is directed to a catheter comprising an ultrasound transducer coupled to the shaft, and at least one actuator coupled to the handle and the ultrasound transducer that is adapted to move the ultrasound transducer both longitudinally along the shaft and circumferentially about the shaft. Another embodiment of the invention is directed to a catheter comprising an ultrasound transducer coupled to the shaft, and at least one actuator that is adapted to move the sheath both longitudinally along the shaft and circumferentially about the shaft to orient a window of the sheath in a desired position.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: September 30, 2014
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: David MacAdam, Timothy Collins
  • Publication number: 20140257111
    Abstract: A medical tube includes a first portion, a second portion, a third portion, and a fourth portion in this order from a proximal side to a distal side thereof. The first portion has a tubular resin layer, the second portion has a tubular inner layer and outer layer, the third portion as an inner layer and outer layer, and the fourth portion has a tubular resin layer.
    Type: Application
    Filed: May 21, 2014
    Publication date: September 11, 2014
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Yasunori YAMASHITA, Tooru OOTA, Youichi ITO, Naoko KATOU
  • Patent number: 8827910
    Abstract: A catheter includes a flexible tubing having a proximal end and a distal end. The catheter also includes an electrode assembly attached to the distal end of the flexible tubing and including a first magnet therein. The electrode assembly including an electrically conductive tip electrode and an electrically nonconductive coupler which is connected between the tip electrode and the distal end of the flexible tubing. The electrically conductive tip electrode comprises a hollow elongated tip electrode including a sidewall provided with one or more elongated gaps extending through the sidewall. The one or more elongated gaps providing flexibility in the sidewall for bending movement of the tip electrode relative to a longitudinal axis of the catheter body. The first magnet is responsive to an external magnetic field to selectively position and guide the electrode assembly within a body of a patient.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: September 9, 2014
    Assignee: St. Jude Medical, Atrial Fibrillation Divsion, Inc.
    Inventors: Alan de la Rama, Carlo Pappone, Peter Cheng Chen, Cary Hata, Jared A. Shimizu
  • Patent number: 8819928
    Abstract: An intravascular ultrasonic imaging catheter is provided with a flexible circuit electrically coupled to a transducer array mounted on the distal end of the catheter, a portion of the flexible circuit being helically wound about the catheter in order to enhance the flexibility of the circuit. The catheter may be a balloon catheter which is also provided with a stent mounted on the balloon, the stent carrying one or more drugs designed to be eluted or washed into a patient's blood stream after the stent has been delivered, by a the balloon catheter, into a target area within the patient's vascular system.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: September 2, 2014
    Assignee: Volcano Corporation
    Inventors: Elvin Nix, William Howes, Robert Dickinson, Stephan Wnendt
  • Publication number: 20140243680
    Abstract: A medical device is used to image a body cavity using a plurality of axially and angularly spaced imaging sensors. Each imaging sensor generates an image that is distinct from one another due to distinct fields of vision. Each image includes an overlapping zone with commonalties that are used to extrapolate a greater calibrated image.
    Type: Application
    Filed: May 5, 2014
    Publication date: August 28, 2014
    Applicant: Headwater Partners II LLC
    Inventor: Gregory G. Raleigh
  • Patent number: 8805472
    Abstract: The present invention relates to the diagnosis and treatment of stress urinary incontinence. In one embodiment, the diagnosis and treatment involves the use of a positional feedback catheter. Positional sensors may be embedded in the catheter to provide real-time tracking of the position and movement of the catheter.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: August 12, 2014
    Assignee: Remendium Labs LLC
    Inventor: Ramon Jose Iglesias
  • Patent number: 8801615
    Abstract: A system and method for treating tissue uses an ultrasound therapy system including an ultrasonic applicator having has at least one transducer element. Steering and focusing of ultrasound beams uses at least one variable focus lens, which may be a fluid focus lens, attached to each transducer element so that focus of the variable focus lens is controlled by a voltage signal. A treatment controller receives input from an imager and controls the voltage applied to the variable focus lens. The treatment controller controls the lens voltage signals, at least partially determined by the input from the imager, and directs an ultrasonic treatment beam emitted by the transducer element. Fine adjustment of the therapy beam is achieved to deliver therapy for various prostate sizes and shapes while avoiding damage to critical structures such as the rectal wall and nerve bundles.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: August 12, 2014
    Assignee: Koninklijke Philips N.V.
    Inventors: Anna Theresa Fernandez, Balasundara Raju
  • Patent number: 8801617
    Abstract: Devices, systems, and methods for ultrasonically acquiring far-field and near-field images within a body are disclosed. An ultrasound imaging device adapted for insertion within a body includes a first ultrasonic sensor configured to transmit ultrasonic waves at a first frequency for acquiring far-field images within the body, and a second ultrasonic sensor configured to transmit ultrasonic waves at a higher frequency than the first frequency for acquiring near-field images within the body. The ultrasound imaging device can be connected to a control device and user interface for visualizing far-field and near-field images acquired by the ultrasonic sensors.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: August 12, 2014
    Assignee: Boston Scientific Scimed Inc.
    Inventor: David McGee
  • Publication number: 20140213907
    Abstract: Described are embodiments of devices and methods for imaging a body conduit, such as a blood vessel. In particular embodiments, the catheter has a chamber within which is a transducer mounted to a pivot mechanism. A coil provides a pivot force to the transducer. A magnet is attached to the transducer and is receptive of a torque applied by a magnetic field produced by energizing of the coil. A driving mechanism receives an impact from the pivot member and causes the pivot mechanism to rotate about a rotation axis.
    Type: Application
    Filed: January 30, 2014
    Publication date: July 31, 2014
    Applicant: MUFFIN INCORPORATED
    Inventors: William J. Havel, Peter S. McKinnis
  • Patent number: 8790288
    Abstract: An arteriovenous graft system is described. The arteriovenous graft system includes an arteriovenous graft that is well suited for use during hemodialysis. In order to minimize or prevent arterial steal, at least one valve device is positioned at the arterial end of the arteriovenous graft. In one embodiment, for instance, the arteriovenous graft system includes a first valve device positioned at the arterial end and a second valve device positioned at the venous end. In one embodiment, the valve devices may include an inflatable balloon that, when inflated, constricts and closes off the arteriovenous graft. If desired, a single actuator can be used to open and close both valve devices.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: July 29, 2014
    Inventor: David L. Cull
  • Patent number: 8790281
    Abstract: A high-power ultrasound heating applicator for minimally-invasive thermal treatment of uterine fibroids or myomas. High-intensity interstitial ultrasound, applied with minimally-invasive laparoscopic or hysteroscopic procedures, is used to effectively treat fibroids within the myometrium in lieu of major surgery. The applicators are configured with high-power capabilities and thermal penetration to treat large volumes of fibroid tissue (>70 cm3) in short treatment times (3-20 minutes), while maintaining three-dimensional control of energy delivery to thermally destroy the target volume.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: July 29, 2014
    Assignees: The Regents of the University of California, Acoustic Medsystems, Inc.
    Inventors: Chris J. Diederich, Will Nau, Alison Jacoby, Dana Deardorff, Everette C. Burdette