Patents Represented by Attorney, Agent or Law Firm Daniel W. Latham
  • Patent number: 6786924
    Abstract: An annuloplasty band comprising a sheath, and a generally arcuate stiffening element disposed within the sheath. The stiffening element extends from a first end to a second end, and preferably includes eyelets at its first and second ends adapted to receive sutures to secure the annuloplasty band to a valve annulus. The annuloplasty band preferably has a low profile (e.g., a thickness less than 3 mm). In embodiments intended for mitral valve repair, the eyelets are particularly adapted to receive sutures to secure the annuloplasty band to the antero-lateral trigone and postero-medial trigone. A holder and sizer device useful with the annuloplasty band are also provided.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: September 7, 2004
    Assignee: Medtronic, Inc.
    Inventors: Timothy R Ryan, Joseph C. Morrow
  • Patent number: 6786898
    Abstract: A tubular access sleeve and suction tool for accessing an anatomic surface or anatomic space and particularly the pericardium to access pericardial space and the epicardial surface of the heart in a minimally invasive manner are disclosed. A suction tool trunk extending through a suction tool lumen of the sleeve is coupled to suction pads at the ends elongated support arms. The suction pads can be retracted into a sleeve working lumen during advancement of the access sleeve through a passage and deployed from the tubular access sleeve lumen and disposed against the an outer tissue layer. Suction can be applied through suction tool lumens to suction ports of the suction pads that fix to the outer tissue layer so as to tension the outer tissue layer and/or pull the outer tissue layer away from an inner tissue layer so that the anatomic space can be accessed by instruments introduced through the working lumen to penetrate the outer tissue layer.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: September 7, 2004
    Assignee: Medtronic, Inc.
    Inventor: Gary W. Guenst
  • Patent number: 6776780
    Abstract: An electrosurgery medical device is enhanced with unique solution-assistance, and comprises, in combination, co-operating device jaws including jaw portions for manipulating tissue, and a pluraluty of solution infusion openings defined and spaced along each pf the jaw portions, for receiving electrolytic solution and infusing the solution onto and into tissue to be manipulated, along said jaw portions. As preferred, the device further comprises at least one, and most preferably, many, longitudinal groove(s) along at least one and most preferably, both, of the jaw portions, with the solution infusion openings located in the groove or grooves. The solution is energized with RF energy amd contributes to the functions and beneficial effects of the instrument. The solution exits the openings in the grooves at sufficient flow rates to separate substantially all the operative surfaces of the device from tissue, thereby substantially completely preventing adherence between the operative surfaces and tissue.
    Type: Grant
    Filed: August 26, 2002
    Date of Patent: August 17, 2004
    Assignee: Medtronic, Inc.
    Inventors: Peter M. J. Mulier, Michael F. Hoey
  • Patent number: 6764487
    Abstract: An electrocautery device is disclosed. In accordance with one aspect of the invention, the electrocautery electrode/tip is provided with a hollow, conductive tube terminating at its distal end in a ball point type tip. Fluid, preferably conductive fluid, is applied to the proximal end of the hollow electrode/tip, and expelled from the distal end thereof during electrocautery. The ball point distal tip allows the distal tip to be directly applied to the tissue and “rolled” or slid along the tissue. This allows the distal tip to be moved across the tissue without dragging or snagging on the tissue. In addition, the conductive fluid expelled from the distal tip further lubricates the distal tip as it moves across the tissue. If conductive fluid is used, the conductive fluid emanating from the electrode/tip conducts the RF electrocautery energy away from the distal tip so that it is primarily the fluid, rather than the distal tip that actually accomplishes the cauterizing of tissue.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: July 20, 2004
    Assignee: Medtronic, Inc.
    Inventors: Peter M. J. Mulier, Michael F. Hoey
  • Patent number: 6761735
    Abstract: A method and apparatus for limiting longitudinal stretch during fixation of a harvested aortic root including valve leaflets and the product produced. The apparatus includes an inflow plug inserted into the inflow section of the aortic root and having an apertured tube or cannula extending through the valve leaflets to an outflow plug inserted into the outflow section of the aortic root. Apertures in the tube are located on either side of the valve leaflets and the tube is coupled to a fluid inlet, preferably located on the outflow plug. The outflow plug is slidable relative to the tube and is provided with an engagement mechanism such as a setscrew for fixing the location of the outflow plug relative to the tube and the inflow plug. After assembly of the aortic root to the apparatus, the fluid inlet is coupled to a source of defined pressure and the root is inflated.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: July 13, 2004
    Assignee: Medtronic, Inc.
    Inventors: Carol E. Eberhardt, Christopher G. Toomes, Mark J Capps, Billie Millwee, Janice Shay, Tom Hessler, Faisal Kalam
  • Patent number: 6758809
    Abstract: An improved stabilizer or retractor or other surgical tool having an elongated distal arm carrying a tissue-contacting mechanism at its distal end and a tensioning mechanism at its proximal end for locking functional components of the tool in a desired position or configuration. The tensioning mechanism is mounted to a turret or other structure attaching the distal arm to a base by means of a shorter, proximally extending flexible arm. The flexible proximal arm allows the tensioning mechanism to be moved relative to the base so that it can be placed more conveniently in the operative field.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: July 6, 2004
    Assignee: Medtronic, Inc.
    Inventors: Roderick E. Briscoe, David J. S. Kim
  • Patent number: 6755827
    Abstract: An electrosurgery medical device is enhanced with unique solution-assistance, and comprises, in combination, co-operating device jaws including jaw portions for manipulating tissue, and a plurality of solution infusion openings defined and spaced along each of the jaw portions, for receiving electrolytic solution and infusing the solution onto and into tissue to be manipulated, along said jaw portions. As preferred, the device further comprises at least one, and most preferably, many, longitudinal groove(s) along at least one and most preferably, both, of the jaw portions, with the solution infusion openings located in the groove or grooves. The solution is energized with RF energy and contributes to the functions and beneficial effects of the instrument. The solution exits the openings in the grooves at sufficient flow rates to separate substantially all the operative surfaces of the device from tissue, thereby substantially completely preventing adherence between the operative surfaces and tissue.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: June 29, 2004
    Assignee: Medtronic, Inc.
    Inventors: Peter M. J. Mulier, Michael F. Hoey
  • Patent number: 6755780
    Abstract: A method and apparatus for temporarily immobilizing a local area of tissue. In particular, the present invention provides a method and apparatus for temporarily immobilizing a local area of heart tissue to thereby permit surgery on a coronary vessel in that area without significant deterioration of the pumping function of the beating heart. The local area of heart tissue is immobilized to a degree sufficient to permit minimally invasive or micro-surgery on that area of the heart. The present invention features a suction device to accomplish the immobilization. The suction device is coupled to a source of negative pressure. The suction device has a series of suction ports on one surface. Suction through the device causes suction to be maintained at the ports. The device further is shaped to conform to the surface of the heart. Thus, when the device is placed on the surface of the heart and suction is created, the suction through the ports engages the surface of the heart.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: June 29, 2004
    Assignee: Medtronic, Inc.
    Inventors: Cornelius Borst, Hendricus J. Mansvelt Beck, Paul F. Gr{overscore (u)}ndeman, Erik W. L. Jansen
  • Patent number: 6740028
    Abstract: The invention is a method and apparatus for performing beating heart surgery, in which a single articulating arm supports multiple suction pods. Once the suction pods are applied to the heart surface, tightening a cable fixes the arm in place. Then, the suction pods may be spread apart from each other to tighten the surface of the cardiac tissue lying between the suction pods. In one embodiment, fixation of the arm as well as the spreading apart of the suction pods may occur concurrently or almost concurrently through the tensioning of a single cable. Additional embodiments of the method, system and its components are shown.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: May 25, 2004
    Assignee: Medtronic, Inc.
    Inventors: Eric Boone, Jack Goodman, John D. Hall, Vincent J. Testa, Eric Vroegop, William G. O'Neill, Cornelius Borst, Hendricus J. Mansvelt-Beck, Paul F. GrĂ¼ndeman
  • Patent number: 6736810
    Abstract: The present invention provides an apparatus and a method for producing a virtual electrode within or upon a tissue to be treated with radio frequency alternating electric current, such tissues including but not limited to liver, lung, cardiac, prostate, breast, and vascular tissues and neoplasms. An apparatus in accord with the present invention includes a supply of a conductive or electrolytic fluid to be provided to the patient, an alternating current generator, and a processor for creating, maintaining, and controlling the ablation process by the interstitial or surficial delivery of the fluid to a tissue and the delivery of electric power to the tissue via the virtual electrode.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: May 18, 2004
    Assignee: Medtronic, Inc.
    Inventors: Michael F. Hoey, Mark A. Christopherson, Steven M. Goetz
  • Patent number: 6735471
    Abstract: A method of performing a medical procedure, such as surgery, is provided. A nerve is stimulated in order to adjust the beating of the heart to a first condition, such as a stopped or slowed condition. The medical procedure is performed on the heart or another organ. The stimulation of the nerve is stopped in order to adjust the beating of the heart to a second condition, such as a beating condition. The heart itself may also be stimulated to a beating condition, such as by pacing. The stimulation of the nerve may be continued in order to allow the medical procedure to be continued. Systems and devices for performing the medical procedure are also provided.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: May 11, 2004
    Assignee: Medtronic, Inc.
    Inventors: Michael R. S. Hill, Scott E. Jahns, James R. Keogh, David E. Euler, Michael R. Ujhelyi, Nancy J. Rakow, Michael A. Colson
  • Patent number: 6723087
    Abstract: The invention provides an apparatus and method for performing surgery on a patient. The surgical apparatus includes an input device, at least one hydraulic amplifier operably attached to the input device, and an actuator operably attached to the hydraulic amplifier. Input to the input device is hydraulically modulated via the hydraulic amplifier to manipulate the actuator. The surgical method includes receiving a mechanical input for an action. The mechanical input is hydraulically modulated. The action is controlled based on the hydraulically modulated input.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: April 20, 2004
    Assignee: Medtronic, Inc.
    Inventors: William G. O'Neill, William Steele
  • Patent number: 6719786
    Abstract: An annuloplasty system including an annuloplasty prosthesis and a holder for the prosthesis. At least one rigid, downwardly extending penetrating member extends into the prosthesis. Preferably, at least one outwardly extending member extends alongside a lower surface of the prosthesis, preventing the prosthesis from moving downward and off of the penetrating member.
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: April 13, 2004
    Assignee: Medtronic, Inc.
    Inventors: Timothy R Ryan, Joseph C. Morrow
  • Patent number: 6718208
    Abstract: A method of performing a medical procedure, such as surgery, is provided. A nerve is stimulated in order to adjust the beating of the heart to a first condition, such as a stopped or slowed condition. The medical procedure is performed on the heart or another organ. The stimulation of the nerve is stopped in order to adjust the beating of the heart to a second condition, such as a beating condition. The heart itself may also be stimulated to a beating condition, such as by pacing. The stimulation of the nerve may be continued in order to allow the medical procedure to be continued. Systems and devices for performing the medical procedure are also provided.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: April 6, 2004
    Assignee: Medtronic, Inc.
    Inventors: Michael R. S. Hill, Scott E. Jahns, James R. Keogh
  • Patent number: 6716211
    Abstract: An electrocautery instrument is provided with a hollow electrode having a source of conductive fluid coupled to a proximal end thereof. Conductive fluid is communicated through said electrode and expelled out of the distal end thereof during electrocautery, forming a “virtual electrode.” The infused conductive liquid conducts the RF electrocautery energy away from the conductive electrode, thereby displacing the region of thermal generation and reducing the extent of burns and perforations caused by conventional electrocautery electrodes. In one embodiment, the electrode is partially disposed within and extends distally out of a retractable suction tube, such that smoke and fluid are aspirated from the electrocautery site. When the suction tube is fully advanced, the electrode is concealed therein, enabling suction without electrocautery to be performed.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: April 6, 2004
    Assignee: Medtronic, Inc.
    Inventors: Peter M. J. Mulier, Michael F. Hoey
  • Patent number: 6706038
    Abstract: A device for monitoring temperature generated by an ablation apparatus on organic tissue is provided. The device comprises a temperature sensing pad; and an output device to receive and display a representation of a lesion found on the ablated organic tissue. Ablation systems incorporating the device and methods of using the device are also provided.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: March 16, 2004
    Assignee: Medtronic, Inc.
    Inventors: David E. Francischelli, Scott E. Jahns, James R. Keogh
  • Patent number: 6706039
    Abstract: A method and apparatus for creating a virtual electrode to ablate bodily tissue. The apparatus includes an outer tube, a first electrode, an inner tube and a second electrode. The outer tube is fluidly connected to a source of conductive fluid and defines a proximal end and a distal end. The distal end includes an opening for delivering conductive fluid from the outer tube. The first electrode is disposed at the distal end of the outer tube for applying a current to conductive fluid delivered from the outer tube. The inner tube is coaxially received within the outer tube and is connected to a source of conductive fluid. The inner tube defines a proximal end and a distal end, with the distal end forming an opening for delivering conductive fluid from the inner tube. Finally, the second electrode is disposed at the distal end of the inner tube for applying a current to conductive fluid delivered from the inner tube.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: March 16, 2004
    Assignee: Medtronic, Inc.
    Inventors: Peter M. J. Mulier, Michael F. Hoey
  • Patent number: 6704210
    Abstract: A bioprosthesis sealing film strip is attached to a surgical stapler by passing a jaw of the stapler through openings formed in the ends of the strip. Following stapling the strip is released by making a cut from the opening to the edge of the strip. Alternatively, one end of the strip may be releasably secured to pins formed on the jaw.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: March 9, 2004
    Assignee: Medtronic, Inc.
    Inventor: David J. Myers
  • Patent number: 6699240
    Abstract: An ablation system and a method of its use. The system includes a first elongated ablation component carrying a longitudinally extending mechanism for delivery of ablation energy along its length, and a second elongated ablation component movable relative to the first ablation component. The first and second components are provided with a mechanism mounted to and extending along the first and second components for magnetically attracting the first and second components toward one another along the length of the first mechanism for delivery of ablation energy. Preferably, the second elongated ablation component also carries a longitudinally extending mechanism for delivery of ablation energy along its length.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: March 2, 2004
    Assignee: Medtronic, Inc.
    Inventor: David E. Francischelli
  • Patent number: RE38654
    Abstract: An electro-stimulation device includes a pair of electrodes for connection to at least one location in the body that affects or regulates the heartbeat. The electro-stimulation device both electrically arrests the heartbeat and stimulates the heartbeat. A pair of electrodes are provided for connection to at least one location in the body that affects or regulates the heartbeat. The pair of electrodes may be connected to an intravenous catheter for transvenous stimulation of the appropriate nerve. A first switch is connected between a power supply and the electrodes for selectively supplying current from the power supply to the electrodes to augment any natural stimuli to the heart and thereby stop the heart from beating. A second switch is connected between the power supply and the electrodes for selectively supplying current from the power supply to the electrodes to provide an artificial stimulus to initiate heartbeating.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: November 23, 2004
    Assignee: Medtronic, Inc.
    Inventors: Michael R. S. Hill, Kenneth R. Jonkman