Patents by Inventor Kevin L. Morgan

Kevin L. Morgan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7450999
    Abstract: An apparatus for and method of measuring pressure through a septum in a patient's heart is disclosed. A lead inserted into the right side of a heart is routed through the septum to gain access to the left side of the heart. The lead includes an attachment structure that secures the lead to one or both of the septal walls. The attachment structure may include at least one protruding tine, membrane, inflatable balloon, involuted spiral or J-lead that engage one or more sides of the septum. The lead also includes one or more sensors for measuring cardiac pressure on the left side of the heart and, as necessary, the right side of the heart.
    Type: Grant
    Filed: February 7, 2005
    Date of Patent: November 11, 2008
    Assignee: Pacesetter, Inc.
    Inventors: Annapurna Karicherla, Kevin L. Morgan, Gene A. Bornzin, Sheldon Williams
  • Patent number: 7433739
    Abstract: An implantable lead having an elongated lead body that includes an electrical conductor extending between a distal end of the lead body and a proximal end of the lead body is disclosed. The lead further includes an electrode formed at the distal end of the lead body, the electrode being coupled to the electrical conductor and one or more passive fixation mesh sections coupled to the distal end of the lead body that promotes tissue over growth.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: October 7, 2008
    Assignee: Pacesetter, Inc.
    Inventors: Scott Salys, Chris Parrillo, Matt Phillips, Luz Padilla, Jnyan Patel, Kevin L. Morgan, Michael Yang, Sheldon Williams, Andrew W. McGarvey
  • Patent number: 7397166
    Abstract: A peristaltic pump for conveying a fluid comprises a flexible tube having an outer surface and a lumen for carrying the fluid such as a therapeutic agent. The tube has a length defined by opposed ends of the tube, the outer surface of the body carrying a plurality of longitudinally spaced-apart electroactive polymer actuators. The plurality of actuators are adapted to be responsive to electrical signals for energizing the actuators sequentially along the length of the tube to move a lumen pinch-off along the length of the tube to thereby convey the fluid from one end of the tube to the other end by means of a peristaltic pumping action. The peristaltic pump may be incorporated into a medical lead, such as an endocardial pacing lead, carrying at least one electrode.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: July 8, 2008
    Assignee: Pacesetter, Inc.
    Inventors: Kevin L. Morgan, Anne M. Shelchuk, Jeffery D. Snell, Nils Holmström, John R. Helland
  • Patent number: 7389148
    Abstract: A ring electrode for an implantable medical device includes a conductive tubular member adapted to be attached to a lead body and having a continuous generally helical slot formed therein to form a coil thereby enabling omni directional bending. The coil is of flattened cross section and in one embodiment, the coil is shaped as a spiral of uniform pitch. In another embodiment, a plurality of uniformly spaced dovetail joints connect a plurality of first and second adjacent loops. Each dovetail joint includes a plurality of uniformly spaced wedge-shaped tenons projecting longitudinally from a first loop, a plurality of uniformly spaced wedge-shaped mortises longitudinally indented into a second loop, the wedge-shaped mortises being similarly shaped and sized in relation to the wedge-shaped tenons, the plurality of wedge-shaped tenons being fittingly received by the wedge-shaped mortises at all locations between the proximal and distal ends of the ring electrode.
    Type: Grant
    Filed: May 5, 2004
    Date of Patent: June 17, 2008
    Assignee: Pacesetter, Inc.
    Inventor: Kevin L. Morgan
  • Patent number: 7389134
    Abstract: An apparatus for and method of measuring pressure through a septum in a patient's heart is disclosed. A lead inserted into the right side of a heart is routed through the septum to gain access to the left side of the heart. The lead includes an attachment structure that secures the lead to one or both of the septal walls. The attachment structure may include at least one protruding tine, membrane, inflatable balloon, involuted spiral or J-lead that engage one or more sides of the septum. The lead also includes one or more sensors for measuring cardiac pressure on the left side of the heart and, as necessary, the right side of the heart.
    Type: Grant
    Filed: February 7, 2005
    Date of Patent: June 17, 2008
    Assignee: Pacesetter, Inc.
    Inventors: Annapurna Karicherla, Kevin L. Morgan, Gene A. Bornzin, Sheldon Williams
  • Patent number: 7369901
    Abstract: An implantable myocardial stimulation lead comprises a lead body having a distal end and a proximal end, and an electrical connector carried by the proximal end of the lead body. An electrode header carried by the distal end of the lead body has an axis and includes a helical fixation element extending along the axis, the electrode header having a surface configured to receive a driver for rotating the electrode header to screw the helical fixation element into the tissue of the heart. The lead body carries along its length a strain relief member resisting excessive bending of the lead body.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: May 6, 2008
    Assignee: Pacesetter, Inc.
    Inventors: Kevin L. Morgan, John R. Helland, Sheldon Williams, Yougandh Chitre, Andrew W. McGarvey, Christopher Fleck, Jnyan Patel, Scott Salys, Kerwyn Schimke
  • Patent number: 7340288
    Abstract: An apparatus for and method of measuring pressure through a septum in a patient's heart is disclosed. A lead inserted into the right side of a heart is routed through the septum to gain access to the left side of the heart. The lead includes an attachment structure that secures the lead to one or both of the septal walls. The attachment structure may include at least one protruding tine, membrane, inflatable balloon, involuted spiral or J-lead that engage one or more sides of the septum. The lead also includes one or more sensors for measuring cardiac pressure on the left side of the heart and, as necessary, the right side of the heart.
    Type: Grant
    Filed: February 7, 2005
    Date of Patent: March 4, 2008
    Assignee: Pacesetter, Inc.
    Inventors: Annapurna Karicherla, Kevin L. Morgan, Gene A. Bornzin, Sheldon Williams
  • Patent number: 7319905
    Abstract: An implantable lead having an elongated lead body that includes an electrical conductor extending between a distal end of the lead body and a proximal end of the lead body is disclosed. The lead further includes an electrode formed at the distal end of the lead body, the electrode being coupled to the electrical conductor and one or more passive fixation mesh sections coupled to the distal end of the lead body that promotes tissue over growth.
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: January 15, 2008
    Assignee: Pacesetter, Inc.
    Inventors: Kevin L. Morgan, Michael Yang, Sheldon Williams, Andrew W. McGarvey
  • Patent number: 7313444
    Abstract: An implantable cardiac lead system suitable for placement in the coronary sinus region of the heart. The lead system comprises a lead having two or more non-helical bends in its distal portion. The two or more non-helical bends cooperate to prevent the lead from dislodgment or displacement inside the coronary sinus. The lead system may further comprise a stylet suitable for steering the lead into at least one of the coronary sinus vein, great cardiac vein, left marginal vein, left posterior ventricular vein, and small cardiac vein. The stylet is tapered in its distal portion to provide enhanced maneuverability and steerability inside the coronary sinus region. The lead system may also comprise an introducer which aids in introducing the lead into the heart.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: December 25, 2007
    Assignee: Pacesetter, Inc.
    Inventors: Anne M. Pianca, Kevin L. Morgan, Gene A. Bornzin, Joseph J. Florio, David J. Vachon
  • Publication number: 20070239244
    Abstract: The intrapericardial lead includes a lead body having a proximal portion and a flexible, pre-curved distal end portion. The distal end portion carries at least one electrode assembly containing an electrode adapted to engage pericardial tissue. The distal end portion further carries a pre-curved flexible wire member having ends attached to spaced apart points along the distal end portion of the lead body, the flexible wire member having a normally expanded state wherein an intermediate portion of the wire member is spaced apart from the distal end portion, and a generally straightened state wherein the wire member and the distal end portion are disposed in a more parallel, adjacent relationship so as to present a small frontal area to facilitate delivery into the pericardial space. The wire member re-expands to its normal state after delivery into the percaridal space to anchor the distal end portion of the lead body relative to the pericardial tissue.
    Type: Application
    Filed: March 26, 2007
    Publication date: October 11, 2007
    Applicant: PACESETTER, INC.
    Inventors: Kevin L. Morgan, Steven R. Conger, Anna Barlow, Stuart Rosenberg, Wenbo Hou, Michael Yang, Sheldon Williams
  • Patent number: 7274965
    Abstract: An apparatus for and method of measuring pressure through a septum in a patient's heart is disclosed. A lead inserted into the right side of a heart is routed through the septum to gain access to the left side of the heart. The lead includes an attachment structure that secures the lead to one or both of the septal walls. The attachment structure may include at least one protruding tine, membrane, inflatable balloon, involuted spiral or J-lead that engage one or more sides of the septum. The lead also includes one or more sensors for measuring cardiac pressure on the left side of the heart and, as necessary, the right side of the heart.
    Type: Grant
    Filed: February 7, 2005
    Date of Patent: September 25, 2007
    Assignee: Pacesetter, Inc.
    Inventors: Annapurna Karicherla, Kevin L. Morgan, Gene A. Bornzin, Sheldon Williams
  • Patent number: 7272448
    Abstract: The lead body of a medical lead comprises a distal end portion carrying at least one electrode for placement in the pericardial sac of a human heart. The distal end portion of the lead body includes a multi-turn section having opposed ends, opposing forces applied to the ends tending to flatten the multi-turn section, the multi-turn section being thereby adapted to be retained within the pericardial sac. The turns of the multi-turn section may become progressively smaller from one end of the section to the other end of the section. The multi-turn section may have, in a relaxed state thereof, a generally conical, helical configuration. The at least one electrode may be carried adjacent to the end of the multi-turn section having the larger turns. Alternatively, the at least one electrode may be carried adjacent to the end of the multi-turn section having the smaller turns.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: September 18, 2007
    Assignee: Pacesetter, Inc.
    Inventors: Kevin L. Morgan, Annapurna Karicherla
  • Patent number: 7229450
    Abstract: An introducer system for use with a pacemaker lead includes a plastic sheath compatible for insertion within a body, a first end configured for insertion into the body with a second end extending out of the body. A central lumen of the sheath is configured to permit introduction of the lead and includes a flexible, kink-resistant section smooth on its outer surface with a helical pleat defining a helical groove enabling a conductor extending from the mapping probe to the pacing system analyzer to be received in the helical groove of the sheath. A mapping probe at the first end of the sheath is connectable to a pacing system analyzer for seeking a location on the myocardial surface of the heart or an endocardial location at which optimal pacing parameters can be achieved prior to implantation of the lead.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: June 12, 2007
    Assignee: Pacesetter, Inc.
    Inventors: Yougandh Chitre, Kevin L. Morgan, John R. Helland
  • Patent number: 7212871
    Abstract: A medical electrical lead to conduct electrical stimulation and/or signals between an electrical stimulator and a heart site includes an elongated lead body extending to a proximal connector for attachment to the electrical stimulator. An electrode head at the distal end includes an electrode tip member for fixation to the heart and an electrode backing member fixed to the lead body is releasably attachable to the electrode tip member for transmission of electrical signals between the heart and the electrical stimulator. The electrode tip member may include a first non-conductive base with an outwardly projecting tip electrode and a first mounting member projecting oppositely away from the non-conductive base. The electrode backing member includes a second non-conductive base and a second mounting member thereon adapted for mounting engagement with the first mounting member for selectively releasably but firmly integrating the electrode tip member and the electrode backing member.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: May 1, 2007
    Assignee: Pacesetter, Inc.
    Inventor: Kevin L. Morgan
  • Patent number: 7056314
    Abstract: An omnidirectionally steerable obturator facilitates the delivery of the distal tip of an introducer sheath into the coronary sinus of a heart. The steerable obturator comprises an obturator body extending longitudinally along a central axis, the obturator body being configured to be received by the introducer sheath. The obturator body further has a flexible, deflectable distal end section terminating in a rounded distal tip. An actuator, controllable from a proximal end of the obturator body, is operatively associated with the flexible distal end section of the obturator body to cause deflection of the flexible distal end section of the obturator body in at least one selected direction to facilitate passage of the distal end section of the obturator body and the distal tip of the introducer sheath into the coronary sinus of the heart. The obturator body is preferably configured to be received in a close fit within at least the tip of the introducer sheath.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: June 6, 2006
    Assignee: Pacesetter, Inc.
    Inventors: Joseph J. Florio, Gene A. Bornzin, Kevin L. Morgan, Sheldon Williams, Janice Barstad
  • Patent number: 6988007
    Abstract: An implantable single-pass cardiac stimulation lead provides for placement of electrodes into electrical contact with two chambers of a patient's heart. The lead includes an inner lead body having at least one electrode at its distal end and an outer lead body having at least one electrode at its distal end. The outer lead body has an internal lumen that slidingly receives the inner lead body. The inner lead body is extendable from the outer lead body at a point proximal to the distal end of the outer lead body. The sliding of the inner lead body relative to the outer lead body enables the inner lead body distal electrode to have a varying distance from the outer lead body distal electrode and enables the inner lead body to extend into the coronary sinus region of the heart to place the inner lead body electrode into electrical contact with the left ventricle.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: January 17, 2006
    Assignee: Pacesetter, Inc.
    Inventors: Kevin L. Morgan, Gene A. Bornzin, Joseph J. Florio, John R. Helland
  • Patent number: 6973351
    Abstract: An implantable lead for electrical stimulation of the body includes an elongated multi-lumen proximal tube composed of a first material having a first lumen for freely receiving a guidewire therethrough, a cable conductor extending between proximal and distal ends and received in a second lumen of the proximal tube, an elongated distal tube composed of a second material extending between proximal and distal ends having at least one lumen therein, a distal tip electrode attached to the distal end of the distal tube, a coil conductor received in the lumen of the distal tube extending between the proximal end thereof and the distal end thereof and being joined at the distal end to the distal tip electrode, and a joint assembly for electrically and mechanically connecting the distal end of the cable conductor to the proximal end of the coil conductor.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: December 6, 2005
    Assignee: Pacesetter, Inc.
    Inventor: Kevin L. Morgan
  • Patent number: 6968237
    Abstract: An implantable stimulation lead is disclosed for placement in the coronary sinus region and its associated coronary vessels overlying the left side of a patient's heart. The lead comprises at least one proximal connector; at least one tissue stimulation electrode; at least one conductor coupled between the at least one proximal connector and the at least one stimulation electrode; and a lead body including a housing of insulating material enclosing the at least one conductor, the lead body having a relatively flexible distal portion of, for example, silicone rubber, having a length corresponding to the coronary sinus region of the heart, and a stiffer proximal portion of, for example, polyurethane. A robust transition joint comprising telescoped sections of the distal and proximal portions of the lead body couples the two portions of the lead body. Also provided is a versatile lead delivery system including a stylet stop disposed within the distal portion of the lead body.
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: November 22, 2005
    Assignee: Pacesetter, Inc.
    Inventors: Phong D. Doan, Kevin L. Morgan, John R. Helland, Sheldon Williams, Kerwyn Schimke, Christopher R. Jenney
  • Patent number: 6944506
    Abstract: A stylet unit for implanting a removable lead system for a cardiac stimulation device includes an elongated main body having an enlarged feature at the distal end of the main body with a rounded blunt tip end, a width greater than the width of the distal end of the main body, and a length greater than the width. A finger grip is provided at a proximal extremity of the elongated main body for manipulating the stylet unit. Lead system includes an elongated tubular lead body containing an elongated coil conductor with a plurality of coil windings defining a passageway extending the length of the coil conductor and having inner surfaces facing toward the passageway. The enlarged feature of the stylet is sufficiently long to assure that it advances along the passageway in slidable engagement with the inner surfaces of the coil conductor but without thrusting between adjoining coils.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: September 13, 2005
    Assignee: Pacesetter, Inc.
    Inventors: Kevin L. Morgan, Joseph J. Florio
  • Publication number: 20040243210
    Abstract: An implantable lead is provided for delivering electrical therapy. The lead, suitable for placement and passive anchoring in a vessel within the coronary sinus region of a patient's heart, comprises a lead body having a distal end carrying at least one electrode electrically connected to a terminal contact on a proximal end of the lead body, the lead body further including an insulative, tubular housing. A longitudinally extending coil member is contained within the housing, the housing and the coil member having distal ends provided with corresponding, substantially matching preformed bends, the distal end of the housing being thereby adapted to exert a sufficient bias against the inner wall of the vessel within which the lead is placed to stabilize the lead in said vessel.
    Type: Application
    Filed: May 30, 2003
    Publication date: December 2, 2004
    Inventors: Kevin L. Morgan, Yougandh Chitre, John R. Helland, Gene A. Bornzin, Phong D. Doan