Axially-mounted Helical Type Patents (Class 607/127)
  • Patent number: 10561835
    Abstract: The disclosure is directed to securing electrodes of a medical lead adjacent to a target tissue site. The medical lead may include one or more threaded fixation structures disposed circumferentially about the outer surface of the lead body, or elongated member, that resembles a “screw” or “auger.” During implantation, a clinician may rotate the entire lead to “screw” the lead into the tissue of the patient until electrodes of the lead reside adjacent to a target tissue. In this manner, the threaded fixation structure secures the lead within the patient to resist lead migration and improper therapy and provide a fine adjustment for depth of placement. The threaded fixation structure may be disposed on a portion of the lead proximal to or distal to the electrodes of the lead or over the portion of the lead that includes the electrodes.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: February 18, 2020
    Assignee: Medtronic, Inc.
    Inventor: Martin T. Gerber
  • Patent number: 10549092
    Abstract: A system applies and senses electrical energy to and from tissue within a patient's body. The system includes a steerable delivery catheter, housing a flexible shaft and an electrical generator disposed on or embedded within the flexible shaft. Electrodes coupled to the shaft self-expand radially from a compressed position to an expanded position once the delivery catheter is withdrawn, thereby contacting a wall of the tissue of the patient's body to conduct electrical or other signals. The system may be inserted into the coronary sinus and tributary vein to provide physiological pacing to the His bundle and left ventricle. Further, the system provides for controlled passive transmission of normal electric impulses from the atria to the His bundle and ventricles without the need for an embedded generator.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: February 4, 2020
    Inventor: A-Hamid Hakki
  • Patent number: 10441783
    Abstract: A medical tool includes a rotation mechanism that further includes a warning feature. The warning feature provides an indication when the rotation mechanism has achieved a number of rotations.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: October 15, 2019
    Assignee: Pacesetter, Inc.
    Inventors: Peter Nee, Bradley Knippel, Daniel Coyle, Jennifer Heisel, Bernhard Arnar, Brett Hillukka, Tracee Eidenschink, Thomas B. Eby, Paul Paspa, Joseph Ramon Callol, Thomas Robert Luhrs, Carl Lance Boling
  • Patent number: 10434304
    Abstract: Embodiments include an implantable electrical line with at least one helically wound electrical conductor, an electrically conductive sleeve electrically connected to the electrical conductor, and an electrical filter. The electrical filter is arranged between a proximal and a distal longitudinal portion of a helix formed by the at least one helically wound electrical conductor as viewed in a longitudinal direction of the implantable electrical line, and is also arranged within the electrically conductive sleeve as viewed in a radial direction of the implantable electrical line.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: October 8, 2019
    Assignee: Biotronik SE & Co. KG
    Inventors: Pierre Weitzig, Michael Friedrich, Jens Rump
  • Patent number: 10274063
    Abstract: A secondary drive coupling may comprise at least one coupling member having a first mating portion and a second mating portion. The first mating portion is configured to engage a first section of a shaft on one side of a region of weakness of the shaft, whereas the second mating portion is configured to engage a second section of the shaft on an axially opposite side of the region of weakness. Both the first mating portion and the second mating portion are each configured to prevent rotation of the at least one coupling member about the shaft. In another embodiment, the at least one coupling member comprises a first coupling member comprising the first mating portion and a first contact surface and a separate, second coupling member comprising a second mating portion and a second contact surface that is configured to engage the first contact surface.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: April 30, 2019
    Assignee: Thomson Industries, Inc.
    Inventors: Peter Castelli, Anthony Giannetto
  • Patent number: 10159842
    Abstract: Systems, methods, and devices for determining occurrences of a tamponade condition are disclosed. One exemplary method includes monitoring an accelerometer signal of a leadless cardiac pacemaker attached to a heart wall, determining if a tamponade condition of the patient's heart is indicated based at least in part on the monitored accelerometer signal, and in response to determining that the tamponade condition is indicated, providing a notification of the tamponade condition for use by a physician to take corrective action.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: December 25, 2018
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Michael J. Kane, Allan Charles Shuros, Brian L. Schmidt, Keith R. Maile, Benjamin J. Haasl
  • Patent number: 10118026
    Abstract: Various fixation techniques for implantable medical device (IMDs) are described. In one example, an assembly comprises an IMD; and a set of active fixation tines attached to the IMD. The active fixation tines in the set are deployable from a spring-loaded position in which distal ends of the active fixation tines point away from the IMD to a hooked position in which the active fixation tines bend back towards the IMD. The active fixation tines are configured to secure the IMD to a patient tissue when deployed while the distal ends of the active fixation tines are positioned adjacent to the patient tissue.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: November 6, 2018
    Assignee: Medtronic, Inc.
    Inventors: Vladimir Grubac, Matthew D. Bonner, Raymond W. Usher, Thomas A. Anderson, Arshad A. Alfoqaha
  • Patent number: 10105073
    Abstract: A medical probe includes a distal end and an elongate body for insertion into an organ of a patient. The distal end is connected to the elongate body and includes multiple arms that, when inserted into the organ, extend to form multiple respective spirals each having electrodes disposed thereon.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: October 23, 2018
    Assignee: BIOSENSE WEBSTER (ISRAEL) LTD
    Inventors: Gal Hayam, Stuart G. Williams
  • Patent number: 10105535
    Abstract: The present disclosure relates to implantable capsules for stimulation. One implantable capsule includes a tubular body and a distal member provided at its distal end with an anchoring device adapted to penetrate into a tissue of a wall of an organ of a patient and a distal electrode, the body accommodating a set of functional elements of the capsule and including a proximal electrode. The capsule includes an electrically insulating member between the body and the distal member to isolate the distal member of said body.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: October 23, 2018
    Assignee: Sorin CRM SAS
    Inventor: Willy M. Regnier
  • Patent number: 10065032
    Abstract: A method of implanting a lead in the left heart cavity includes introducing the lead into the right heart cavity. The lead includes a lead body having a deformable sheath, a proximal end having an electrical connector, a distal end including a projecting helical screw electrode, and a conductor extending along the sheath, electrically connecting the electrical connector and the helical screw. The method further includes positioning the distal end of the lead to abut a septum wall between the right and left heart cavity. The electrical connector is connected to an RF puncture generator and RF energy is applied to the screw while providing rotational movement to the screw for advancement through the septum wall. The method further includes positioning the screw at a target stimulation site in the left heart cavity and providing rotational movement to the screw to anchor the lead at the target site.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: September 4, 2018
    Assignee: Sorin CRM SAS
    Inventor: Jean-François Ollivier
  • Patent number: 10004907
    Abstract: In one example, a leadless implantable medical device (LIMD) generates a cathodal stimulation pulse with anodal recharge for delivery to patient heart tissues using the tip electrode and the anode electrode. The LIMD then verifies capture of the cathodal stimulation pulse and, if capture is not verified, delivers a cathodal backup stimulation pulse with anodal recharge using the tip electrode and the anode electrode. Automatic capture verification is thereby provided within an LIMD to allow for a reduction in the magnitude of stimulation pulses and to extend the lifetime of the device. In one particular example, the anode is a middle portion of a cylindrical case with a surface area sufficient to prevent anodal stimulation. Other portions of the case are coated with an electrically insulating material to render those portions substantially electrically inert. A voltage halver may be used to further reduce power consumption.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: June 26, 2018
    Assignee: PACESETTER, INC.
    Inventor: Gene A. Bornzin
  • Patent number: 9999763
    Abstract: Apparatus for neuromuscular electrical stimulation and methods for anchoring the same are provided. The apparatus may include an elongated member having one or more electrodes disposed at the distal region of the elongated member and at least one fixation element disposed at the distal region of the elongated member. The fixation element may be shaped and sized to be deployed between tissue layers, such as muscle layers, without damaging the tissue layers so as to secure the one or more electrodes in or adjacent to a desired anatomical site within a patient. An additional fixation element may be disposed at the distal region of the elongated member so that tissue, such as a muscle, may be sandwiched between the fixation elements without damaging the tissue.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: June 19, 2018
    Assignee: Mainstay Medical Limited
    Inventors: Jason Alan Shiroff, Henry Thomas Demorett, Prashant Brijmohansingh Rawat, Johannes Petrus Heemels, Peter Andrew Crosby
  • Patent number: 9974948
    Abstract: An assembly includes a medical device provided with an anchoring member adapted to penetrate tissue of a cavity of the heart. The assembly further includes an implantation accessory including an elongated tubular element provided with a fastening mechanism for handling and guiding the medical device to an implantation site. The fastening mechanism includes an elastic deformable component cooperating with a rigid component, that is able to disconnect the medical device from the tubular element under the effect of a rotation exerted to the tubular element. The elastic deformable component cooperates with the rigid component such that the elastic deformable component exerts on the latter a radial constriction effect, and the elastic component and the rigid component being disconnected under the combined effect of a torsion torque and a traction exerted to the elastic deformable component, to thereby reduce the radial constriction until release of the rigid component.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: May 22, 2018
    Assignee: Sorin CRM SAS
    Inventor: Jean-François Ollivier
  • Patent number: 9884185
    Abstract: An intracardiac capsule comprises a cylindrical body having an atraumatic rounded surface and a helical anchoring screw integral with the cylindrical body. The helical anchoring screw is able to penetrate tissue of a wall of the heart and is configured to provide temporary attachment, in rotation and in translation, of the capsule to an implantation site. The helical anchoring screw surrounds at least a portion of the length of the cylindrical body forming a contact region intended to come into contact with the wall of the cavity of the heart. Over the length of the contact region, the external diameter of the cylindrical body is less than the inner diameter of the helical anchoring screw, so as to leave a free gap there between. The helical anchoring screw is secured to the cylindrical body near the proximal end of the contact region, and extends freely to the opposite distal end.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: February 6, 2018
    Assignee: SORIN CRM SAS
    Inventor: Jean-François Ollivier
  • Patent number: 9849280
    Abstract: A system implantable in the coronary venous system, including a pacing lead with an anchoring screw is disclosed. The system includes a stimulation lead (10) for stimulating a left heart cavity of a patient, and a removable catheter (26) for implanting the lead. The lead (10) has at least one stimulation electrode having an anchoring screw (14) that penetrates into the epicardial tissue of the patient. The catheter tube (26) is a pre-shaped tube with two curvatures in the absence of stress. The two curvatures are inscribed in two separate surfaces (38, 40) for self-orientating the distal end of the catheter tube into the target vein and maintaining the axis of the anchoring screw towards the epicardial wall during the screwing of the lead head.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: December 26, 2017
    Assignee: SORIN CRM SAS
    Inventor: Jean Francois Ollivier
  • Patent number: 9844663
    Abstract: A device for positioning an electrode in tissue includes: a lead body having a distal portion; an electrode array coupled to the lead distal portion; an anchoring element having an anchor tip and being operable in a first configuration in which the anchor tip is retracted within the lead and in a second configuration in which the anchor tip is extended outside the lead and configured to fixate within the tissue; and a displacement mechanism that is actuated to bias the electrode array or the anchoring element toward the tissue. A method for positioning an electrode in tissue includes: navigating, to the tissue, a lead with an electrode array, an anchoring element with a distal anchor tip, and a displacement mechanism; biasing the electrode array and anchoring element towards the tissue with the displacement mechanism; and deploying the anchoring element, and verifying fixation of the anchor tip within the tissue.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: December 19, 2017
    Assignee: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Aravind Swaminathan, Ellis Garai
  • Patent number: 9833609
    Abstract: An implantable medical device includes a lead body having a distal end and a proximal end, a lumen and at least one lead wire extending through the lumen. The lead wire has an outer surface and a polymeric coating on at least a portion of the outer surface of the lead wire. The coating includes a first structure having a first end proximate the outer surface of the lead wire and a second end opposite the first end. The second end is movable relative to the first end and relative to the lead wire.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: December 5, 2017
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Jan Weber, Torsten Scheuermann, Stephen B. Ruble, Barry L. Rudman
  • Patent number: 9814875
    Abstract: A medical device includes a tubular body having a distal end and a proximal end, a lumen extending through the tubular body from the distal end to the proximal end, a wire extending through the lumen from the distal end to the proximal end, and a polymeric coating. The wire has an outer surface. The polymeric coating is on at least a portion of the outer surface of the wire. The coating comprises a bulk material and a plurality of flexible microstructures disposed on the bulk material. The microstructures extend outwardly from a surface of the polymeric coating.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: November 14, 2017
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Jan Weber, Torsten Scheuermann, Stephen B. Ruble, Barry L. Rudman
  • Patent number: 9800010
    Abstract: An implantable lead assembly is provided that comprises a lead body having a proximal end portion and a distal end portion, and having a length extending there between. A plurality of electrodes are disposed along the lead body. A plurality of cable conductors are contained within the lead body, the conductors extending from the electrodes to the proximal end portion. A lead connector is provided at the proximal end portion. The lead connector includes a connector pin configured to mate with a corresponding header contact; a first termination pin coupled to one of the plurality of cable conductors; a collar coupler securely and electrically coupling the connector pin and first termination pin in an axially offset alignment with one another; and a body segment that is elongated along a longitudinal axis and extends between a header mating face and a lead mating end.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: October 24, 2017
    Assignee: PACESETTER, INC.
    Inventors: Alexander Farr, Steven R. Conger, Keith Victorine, Sean Matthew Desmond
  • Patent number: 9746925
    Abstract: A haptic feedback device including a dual coil linear solenoid is provided. The dual coil linear solenoid construction provides a sense of a pulling force in an opposite direction from a pushing force sensed in the player's hand. A dynamic current source for each coil is disposed to generate dynamic magnetic flux in each coil, whereby a dynamic bi-directional force is exerted on the plunger. A plunger position controller controls the position of the plunger, whereby the plunger position controller applies a dynamic bi-directional force on the plunger to move the plunger to a target position based on the current position of the plunger detected by a plunger position sensor. The haptic feedback device is incorporated into a game controller. Video or arcade games incorporating the feedback device are also disclosed.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: August 29, 2017
    Inventors: Robert Steven Yoest, Kevin Thomas Uskali
  • Patent number: 9649043
    Abstract: A method of determining body position uses ECG sensors at fixed positions, not fixed to the patient. The ECG signals recorded from the sensors are used to detect body position, using the variation of ECG potential over the surface of the body. The results may be processed by measuring artifacts related to the angle between the sensors and the heart, in particular the polarity of the QRS complex. The sensors may be fixed on the upper surface of a bed and used to measure sleep position.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: May 16, 2017
    Assignee: Koninklijke Philips N.V.
    Inventors: Mohammed Meftah, Andreas Brauers
  • Patent number: 9610454
    Abstract: In accordance with one embodiment, a leadless implantable medical device (LIMD), compromises a hermetic housing that has a distal portion and proximal portion. An electrode is proximate to the distal portion. An electronics package is disposed in the housing, in which the electronics package is configured to generate and deliver stimulation signals to the electrode. A fixation mechanism is disposed on the distal portion of the housing. A torque mechanism is disposed on the proximal portion of the housing. The torque mechanism has a tool engagement element movably coupled to the housing. The tool engagement element has a rotational force applied thereto during implant. The torque mechanism includes a torque limiter that maintains a fixed relation between the tool engagement element and the housing when in an engaged state. The torque limiter changes from the engaged state to a disengaged state when the rotational force exceeds a predetermined torque limit.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: April 4, 2017
    Assignee: Pacesetter, Inc.
    Inventors: Phong D. Doan, Kavous Sahabi, Arees Garabed
  • Patent number: 9555236
    Abstract: The invention relates to an implantable capsule, particularly an autonomous capsule of cardiac stimulation, including a tubular body provided at the distal end of an anchoring element with a helical screw adapted to penetrate tissue a wall of an organ of a patient, the body housing a set of functional elements of the capsule. It includes, in an annular area surrounding the base of the screw recessed arrangements defining a set of flush tips oriented in a circumferential direction opposite to that of the screwing, to avoid the unscrewing of the capsule.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: January 31, 2017
    Assignee: SORIN CRM SAS
    Inventors: Willy Régnier, Philippe D'hiver, Jean-François Ollivier
  • Patent number: 9550058
    Abstract: A medical stylet for guiding a lead includes a first elongate member for attachment of the lead to the target tissue, a second elongate member to reshape the lead. The first elongate member of the medical stylet includes a proximal end portion, and a distal end portion wherein the distal end portion of the first elongate member includes a tip feature configured to engage the lead on application of torque externally. The second elongate member defines a lumen along its length. The lumen of the second elongate member can be configured to enclose at least a portion of the first elongate member. The second elongate member can have a pre defined shape. The pre defined shape of the second elongate member allows the lead to be reshaped when inserted into the lead, this reshaped lead now can be guided to an anatomical pass way.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: January 24, 2017
    Assignee: Cardiac Pacemakers, Inc.
    Inventor: Arthur J. Foster
  • Patent number: 9522269
    Abstract: A lead adapted to be steerable during insertion into an animal body includes the following. A structure substantially defining at least one principal planar surface, the structure having a proximate end and a distal end. The structure includes a tip portion on the distal end, and a body portion, with the tip portion being flexible in directions substantially parallel to said at least one principal planar surface. A shape of the tip portion is changeable, and an end of the tip portion traces a path within a plane substantially parallel with the at least one principal planar surface. At least one electrode is connected with said structure.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: December 20, 2016
    Inventor: Hui Zhu
  • Patent number: 9421384
    Abstract: An implantable medical device includes an actuator and/or sensor portion to be fixed to bodily tissue by means of a fixation mechanism, to act on the tissue and/or to detect a signal from the tissue, wherein at least one detector element, preferably a plurality of detector elements, adapted for detecting the close proximity of bodily tissue, is arranged on the actuator and/or sensor portion of the device, and an output of the or each detector element being connected or connectable to a detection signal evaluation unit for deriving a fixation state verification from detection signals provided by the or each detector element.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: August 23, 2016
    Assignee: BIOTRONIK SE & Co. KG
    Inventors: Brian M. Taff, Hannes Kraetschmer, Jie Lian
  • Patent number: 9421360
    Abstract: A medical device configured to be secured to an individual may include a housing containing one or more electrical components, and one or more leads electrically connected to the housing. Each lead may include an insulating jacket that surrounds a central core including one or more conductors, and at least one pressure-resisting member integrally formed with one or both of the insulating jacket or the central core. The pressure-resisting member is configured to resist one or more forces exerted into the central core. For example, the pressure-resisting member may include one or more of a suture-anchoring member or a lead-strengthening member.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: August 23, 2016
    Assignee: PACESETTER, INC.
    Inventors: Steven R. Conger, Michael Childers, Yoheng Hanson Chang, Tyler Strang, John R. Helland
  • Patent number: 9393405
    Abstract: A wireless electrostimulation system can comprise a wireless energy transmission source, and an implantable cardiovascular wireless electrostimulation node. A receiver circuit comprising an inductive antenna can be configured to capture magnetic energy to generate a tissue electrostimulation. A tissue electrostimulation circuit, coupled to the receiver circuit, can be configured to deliver energy captured by the receiver circuit as a tissue electrostimulation waveform. Delivery of tissue electrostimulation can be initiated by a therapy control unit.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: July 19, 2016
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Roger Hastings, John A. Becker, Michael J. Pikus, Daniel M. Lafontaine, Kevin D. Edmunds
  • Patent number: 9345873
    Abstract: Described is a medical device lead including a lead body having a conductor lumen including an inner surface. The lead also includes a conductor assembly extending through the conductor lumen; the conductor assembly comprising a conductor member and an outer insulative layer; and an electrode coupled to the conductor cable. The outer insulative layer includes a textured external surface that reduces the coefficient of friction between the outer insulative layer and the inner surface of the conductor lumen through which the conductor assembly extends. Methods of forming the conductor assembly are also described.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: May 24, 2016
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: David R. Wulfman, Rahul K. Rajgarhia, David J. Smith, Tolga Tas, Daniel J. Cooke, Christopher R. Perrey
  • Patent number: 9278218
    Abstract: A leadless intra-cardiac medical device senses cardiac activity from multiple chambers and applies cardiac stimulation to at least one cardiac chamber and/or generates a cardiac diagnostic indication. The leadless device may be implanted in a local cardiac chamber (e.g., the right ventricle) and detect near-field signals from that chamber as well as far-field signals from an adjacent chamber (e.g., the right atrium).
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: March 8, 2016
    Assignee: Pacesetter, Inc.
    Inventors: Edward Karst, Richard Samade, Gene A. Bornzin, John W. Poore, Zoltan Somogyi, Didier Theret
  • Patent number: 9199075
    Abstract: A medical electrical lead and methods of implanting medical electrical leads in lumens. Leads in accordance with the invention employ preformed biases to stabilize the lead within a lumen or lumen and to provide feedback to lead implanters. In some embodiments, a preformed bend in the lead may assist an implanter with orienting the lead within a lumen.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: December 1, 2015
    Assignee: Respicardia, Inc.
    Inventor: Randy W. Westlund
  • Patent number: 9186495
    Abstract: A method of forming a lead includes providing an elongated lead body defining an annular groove disposed around a circumference of the lead body along one of a distal end or a proximal end of the lead body. A pre-contact is disposed around the circumference of the lead body within the annular groove. The pre-contact includes a pre-contact body having opposing first and second ends and first and second tabs extending outwardly from the opposing first and second ends, respectively. The first and second tabs are crimped together and folded flat against an outer surface of the pre-contact body. A polymeric material of the lead body is re-flowed to facilitate coupling of the pre-contact to the lead body. An outer surface of the pre-contact body is ground down to form a contact disposed along the one of the distal end or the proximal end of the lead body.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: November 17, 2015
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventor: Daniel James Romero
  • Patent number: 9186498
    Abstract: An implantable medical device includes a lead body having a distal end and a proximal end, a lumen and at least one lead wire extending through the lumen. The lead wire has an outer surface and a polymeric coating on at least a portion of the outer surface of the lead wire. The coating includes a first structure having a first end proximate the outer surface of the lead wire and a second end opposite the first end. The second end is movable relative to the first end and relative to the lead wire.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: November 17, 2015
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Jan Weber, Torsten Scheuermann, Stephen B. Ruble, Barry L. Rudman
  • Patent number: 9155877
    Abstract: A lead configured to be implanted into a patient's body comprises a lead body and a conductive filer positioned within the lead body and having a distal portion. An electrode is electrically coupled to the lead body and comprises a stimulation portion, a bobbin, and at least one coil of wire wound on the bobbin and electrically coupled between the stimulation portion and the distal end region to form an inductor between the distal end region and the stimulation portion.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: October 13, 2015
    Assignee: MEDTRONIC, INC.
    Inventors: James M. Olsen, Stephen L. Bolea, Gregory A. Hrdlicka, Carl D. Wahlstrand, Thomas Barry Hoegh
  • Patent number: 9149632
    Abstract: Exemplary techniques, devices, and systems relating to implantable medical devices (IMDs) and IMD features pertaining to imaging and charge induction are described. One IMD includes means for receiving a first signal relating to a magnetic resonance imaging process. The IMD further includes means for generating a second signal effective to reduce or cancel charge induced upon a lead of the IMD by the magnetic resonance imaging process.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: October 6, 2015
    Assignee: Pacesetter, Inc.
    Inventor: Abhi Vase
  • Patent number: 9114251
    Abstract: A medical implantable lead of the type being adapted to be implanted into a human or animal body and attached with a distal end to an organ inside the body, has a helix of a helical wire in the distal end which is adapted to be screwed into the organ. In addition to the first helix, the lead also has a second helix of a helical wire, the second helix having the same diameter, the same pitch and being intertwined with the helical wire of the first helix and which, upon rotation of the first helix, will be rotated and screwed into the tissue. The first helix is electrically non-conductive whereas the second helix is electrically conductive. In a method for attaching a medical implantable lead to an organ inside a human or animal body, such a medical lead is employed and fixed to tissue in vivo.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: August 25, 2015
    Assignee: St. Jude Medical AB
    Inventors: Rolf Hill, Olof Stegfeldt
  • Patent number: 9108043
    Abstract: An implantable active fixation lead includes an outer sheath, a protector member having a peripheral surface extending between its distal and proximal end surfaces with a helical groove formed in the peripheral surface, and a fixation helix integral with the outer sheath. The fixation helix includes a tip end engageable with body tissue and slidably engaged with the helical groove for relative translation and rotation. A longitudinal force on the lead firmly engages the protector member's distal end surface with the body tissue. With the fixation helix initially retracted proximally of the protector member's distal end surface and disengaged from the body tissue, upon application of torque to the outer sheath, the distal end surface of the protector member is moved proximally with respect to the fixation helix which, simultaneously, is extended distally beyond the distal end surface of the protector member to an extended position into engagement with the body tissue.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: August 18, 2015
    Assignee: PACESETTER, INC.
    Inventors: Mary Elizabeth Bush, Rolf Hill, Steven R. Conger, Olof Stegfeldt
  • Patent number: 9101754
    Abstract: A connector for an implantable medical lead that is electrically and mechanically connectable to an implantable medical device, has a connector pin made of a first conducting material. A tubular insulator made of an insulating material concentrically surrounds at least a portion of the pin. A connector ring made of a second conducting material is concentrically positioned around at least a portion of the insulator. The insulator is connected to the connector ring by spark plasma sintering in the case of an active fixation lead, and is connected to the ring and the pin by spark plasma sintering in the case of a passive fixation lead.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: August 11, 2015
    Assignee: ST. JUDE MEDICAL AB
    Inventors: Rolf Hill, Andreas Örnberg, Eva Micski, Henrik Djurling, Mats Nygren
  • Patent number: 9079013
    Abstract: A method for manufacturing a lead includes pre-forming at least one relief section along a length of an elongated conductor having a first end and an opposing second end. The conductor with the pre-formed relief section is inserted into a conductor lumen defined along a length of an elongated lead body. The lead body has a first end and an opposing second end. An electrode is disposed at the first end of the lead body. The first end of the conductor is electrically coupled to the electrode. A terminal is disposed at the second end of the lead body. The second end of the conductor is electrically coupled to the terminal.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: July 14, 2015
    Assignee: Boston Scientific Neuromodulation Corporation
    Inventors: Andrew DiGiore, John Michael Barker, Anne Margaret Pianca, Michael Adam Moffitt, Matthew Lee McDonald, Joshua Dale Howard
  • Patent number: 9078979
    Abstract: An injection device including a syringe connectable to a corkscrew injection needle via an adapter is disclosed. The corkscrew needle includes a proximal end and a distal end and a bore formed through the proximal and distal ends, the corkscrew needle terminating with a sharpened tip at the distal end. The syringe includes a barrel and a chamber formed therein for containing an injectable substance. The barrel includes a proximal end, a distal end, and an outlet at the distal end in fluid communication with the chamber. The distal end of the syringe connects to the proximal end of the adapter. The adapter bore provides fluid communication between the syringe and the corkscrew needle. The proximal end of the corkscrew needle is rotatably coupled to distal end of the adapter which allows rotation of the corkscrew needle without rotating the syringe.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: July 14, 2015
    Assignee: COOK MEDICAL TECHNOLOGIES LLC
    Inventor: Frank J. Fischer, Jr.
  • Patent number: 9072890
    Abstract: An electrical lead for a cardiac device includes a body having a distal end sized for insertion through a catheter, first and second electrodes extending through the body, with each electrode terminating in a tip having proximal and distal ends and arranged to extend to an area of cardiac tissue. The tips include a fully insulated portion on the proximal and distal ends measuring in a range between 5 percent and 40 percent of the lengths of the tips, and further include an uninsulated intermediate section. The tip of the second electrode includes a helical section surrounding the first electrode and has an insulated portion on an inwardly facing portion surface facing toward the first electrode. The tip of the second electrode also includes a fully insulated portion on the proximal and distal ends measuring in the same or similar percentage range.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: July 7, 2015
    Assignee: MAYO FOUNDATION FOR MEDICAL EDUCATION AND RESEARCH
    Inventors: Paul A. Friedman, Charles J. Bruce, Samuel J. Asirvatham
  • Patent number: 9037265
    Abstract: A retractable screw-type stimulation or defibrillation intracardiac lead is disclosed. According to one embodiment, the lead comprises a flexible hollow sheath (12) having at its distal end a lead head (10) and a connector (66) at its proximal end. The connector comprises a pin (62) connected to a lead head electrode (18). The lead head comprises a tubular body (28), at least one electrode (18, 20) for stimulation or defibrillation, a moving element translationally and rotationally moving within the tubular body in a helical motion, an anchoring screw (24) axially moving with respect to the tubular body, and a deployment mechanism (22) to deploy the anchoring screw out of the tubular body (28).
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: May 19, 2015
    Assignee: SORIN CRM S.A.S.
    Inventor: Jean-Francois Ollivier
  • Patent number: 9020611
    Abstract: A leadless cardiac pacemaker comprises a housing, a plurality of electrodes coupled to an outer surface of the housing, and a pulse delivery system hermetically contained within the housing and electrically coupled to the electrode plurality, the pulse delivery system configured for sourcing energy internal to the housing, generating and delivering electrical pulses to the electrode plurality. The pacemaker further comprises an anti-unscrewing feature disposed on either a fixation device of the pacemaker or on the housing itself. The anti-unscrewing feature can be configured to prevent the fixation device from disengaging the wall of the heart.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: April 28, 2015
    Assignee: Pacesetter, Inc.
    Inventors: Alexander Khairkhahan, Eric Varady, Kenneth J. Carroll, Paul Paspa
  • Publication number: 20150105847
    Abstract: A heat dissipating housing to be positioned at a distal end of a stimulation/defibrillation lead, the housing including a housing body having a distal contact face at a distal end, an inner wall, and an outer wall. The housing further includes an anchoring screw, wherein at least a portion of the anchoring screw extends axially from the distal end of the housing body. The anchoring screw is configured to secure the distal contact face in contact with tissue of a patient to form a thermal bridge between the tissue and the housing body. The housing body is electrically insulated and thermally conductive to dissipate heat transferred through the thermal bridge to the outer wall of the housing body.
    Type: Application
    Filed: December 19, 2014
    Publication date: April 16, 2015
    Applicant: SORIN CRM SAS
    Inventors: Jean-François Ollivier, Philippe d'Hiver
  • Publication number: 20150073248
    Abstract: Described is an implantable lead comprising a flexible body extending between a proximal end and a distal end and a distal assembly coupled to the distal end of the body. The distal assembly includes a housing having a distal end and a proximal end, the proximal end fixedly coupled to the distal end of the lead body, a coupler rotatably disposed within the housing, the coupler having a proximal end and a distal end, and a helical electrode fixedly secured to the distal end of the coupler. The helical electrode comprises a proximal axial length portion that comprises a non-degradable material, and a distal axial length portion that comprises a biodegradable material. The coupler and the helical electrode are configured to rotate and therefore translate relative to the housing.
    Type: Application
    Filed: November 18, 2014
    Publication date: March 12, 2015
    Inventors: Bryan A. Clark, Thomas J. Herbst, Kimberly A. Jorgensen
  • Publication number: 20150051682
    Abstract: An implantable leadless cardiac pacing device and associated delivery and retrieval devices. The implantable device includes a docking member extending from the proximal end of the housing of the implantable device configured to engage with the delivery and/or retrieval device to facilitate delivery and/or retrieval of the implantable leadless cardiac pacing device.
    Type: Application
    Filed: August 5, 2014
    Publication date: February 19, 2015
    Inventors: Brian L. Schmidt, Benjamin J. Haasl, Keith R. Maile, Dana Sachs
  • Publication number: 20150051614
    Abstract: Implantable leadless pacing devices and medical device systems including an implantable leadless pacing device are disclosed. An example implantable leadless pacing device may include a pacing capsule. The pacing capsule may include a housing. The housing may have a proximal region and a distal region. A first electrode may be disposed along the distal region. An anchoring member may be coupled to the distal region. One or more anti-rotation members may be fixedly attached to the distal region.
    Type: Application
    Filed: August 6, 2014
    Publication date: February 19, 2015
    Inventors: Brian L. Schmidt, Dana Sachs, Benjamin J. Haasl, Arthur J. Foster, Thomas J. Herbst
  • Patent number: 8958892
    Abstract: A delivery system for implanting a leadless cardiac pacemaker into a patient is provided. The cardiac pacemaker can include a docking or delivery feature having a through-hole disposed on or near a proximal end of the pacemaker for attachment to the delivery system. In some embodiments, the delivery catheter can include first and second tethers configured to engage the delivery feature of the pacemaker. The tethers, when partially aligned, can have a cross-sectional diameter larger than the through-hole of the delivery feature, and when un-aligned, can have a cross-sectional diameter smaller than the through-hole of the delivery feature. Methods of delivering the leadless cardiac pacemaker with the delivery system are also provided.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: February 17, 2015
    Assignee: Pacesetter, Inc.
    Inventors: Alexander Khairkhahan, Alan Klenk
  • Patent number: 8948883
    Abstract: A fixation member of an electrode assembly for an implantable medical device includes a tissue engaging portion extending along a circular path, between a piercing distal tip thereof and a fixed end of the member. The circular path extends around a longitudinal axis of the assembly. A helical structure of the assembly, which includes an electrode surface formed thereon and a piercing distal tip, also extends around the longitudinal axis and is located within a perimeter of the circular path. The tissue engaging portion of the fixation member extends from the distal tip thereof in a direction along the circular path that is the same as that in which the helical structure extends from the distal tip thereof. The electrode assembly may include a pair of the fixation members, wherein each tissue engaging portion may extend approximately one half turn along the circular path.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: February 3, 2015
    Assignee: Medtronic, Inc.
    Inventors: Michael D Eggen, Zhongping Yang, Rick D McVenes, Noelle C Hurtig, Raymond W Usher
  • Patent number: 8939993
    Abstract: Exemplary systems for loading a pre-curved electrode array onto a stylet include a loading tool and a stylet retainer. The loading tool includes a docking assembly comprising a plurality of wing members that form a receptacle configured to receive a proximal portion of the stylet, a channel assembly comprising a channel configured to receive and allow passage therethrough of the pre-curved electrode array, the channel further configured to receive a distal portion of the stylet, and a connecting member configured to connect the channel assembly to the docking assembly. The stylet retainer is configured to couple to the loading tool to retain the stylet within the loading tool while the pre-curved electrode array is loaded onto the stylet. Corresponding methods are also described.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: January 27, 2015
    Assignee: Advanced Bionics AG
    Inventors: Chuladatta Thenuwara, William G. Orinski