Patents Represented by Attorney Law Office of Alan W. Cannon
  • Patent number: 6852075
    Abstract: The invention is devices and techniques which use a negative (suction) pressure or vacuum, applied through a surgical instrument, to fix the position of a portion of the surface of a beating heart so that a surgical procedure can be more easily performed. The devices apply a negative pressure at several points on the outer surface of the heart such that a portion of the heart is fixed in place by the suction imposed through the surgical instrument. Because the instrument fixes the position of the tissue, and because the instruments remain at a constant distance from the particular portion of the heart where the surgery is being performed, the device may also serve as a support or platform so that other surgical instruments or devices can be advantageously used at the site.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: February 8, 2005
    Assignee: Cardiothoracic Systems, Inc.
    Inventor: Charles S. Taylor
  • Patent number: 6821052
    Abstract: A combination asphalt/concrete surface repair machine. The machine is a direction-finding, wheeled, transportable vehicle, which is a self-regulating, repair machine, controlled by a complex central computer. The machine is capable of being attached to and hauled by another faster vehicle (i.e., truck) if necessary. This machine is guided by a positioning device, which uses advanced radar and laser technology to place the machine above every position of the road surface to be repaired. The machine uses data from seismic or radar analysis carried out in preparation for repairing the road surface by the use of robotic modules within the machine. This technology can also be used to build new roads, racetracks, airport runways, sidewalks, driveways, parking lots, etc. Multiple construction or repair functions are provided within one machine.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: November 23, 2004
    Inventor: William Harrison Zurn
  • Patent number: 6811555
    Abstract: A ring for use in anastomosis. Preferably, the ring is integrally formed from metal, and includes a ring portion and tines and docking members that extend from the ring portion. The ring portion and tines are malleable, and preferably also the docking members are malleable. The ring portion and tines are malleable in the sense that once deformed from a first shape into a second shape, they will not relax back into the first shape from the second. To install the ring in a vessel with the ring portion extending around an incision or other orifice, the tines pierce the tissue around the orifice and are curled against an anvil. The action of curling the tines inverts the tissue near the orifice edges to expose the inside surface of the vessel or organ.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: November 2, 2004
    Assignee: Origin Medsystems, Inc.
    Inventors: Geoffrey H. Willis, Thomas A. Kramer, Paul A. Spence, George T. Christakis, Timothy J. McCoy, John W. Davis, Bradley D. Blackwood, Peter Callas, Michael Francis Wei, Jonathan L. Podmore, Andrew Knight, Thomas J. Ward, Warren P. Williamson, IV
  • Patent number: 6788726
    Abstract: A laser apparatus and method that provide for suppression of source spontaneous emission (SSE) and amplified spontaneous emission (ASE) light in laser output with minimal intracavity loss. The apparatus comprises a gain medium emitting a light beam, a wavelength element positioned in the light beam, and a non-reciprocal pickoff positioned in the light beam between the gain medium and wavelength element. The non-reciprocal pickoff may comprise a polarization-dependent beam splitter and a non-reciprocal polarization rotator positioned in the light beam before the wavelength selection element. The non-reciprocal pickoff may further comprise a reciprocal polarization rotator positioned in the light beam after the polarization-dependent beam splitter.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: September 7, 2004
    Assignee: New Focus, Inc.
    Inventors: Guangzhi Z. Zhang, Carter F. Hand, Alejandro D. Farinas, Murray Reed
  • Patent number: 6758808
    Abstract: Stabilization devices, systems and methods for stabilizing tissue to perform a surgical operation while the heart of the patient continues to beat. A stabilization system including a tissue contact member having a surface adapted to contact the tissue and temporarily maintain the tissue in a relatively immobilized state; and a maneuverable arm attached to the tissue contact member, which includes at least one articulating joint formed by a link having a male articulating surface composed of angled teeth and a female articulating surface having angled trenches adapted to receive the angled teeth.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: July 6, 2004
    Assignee: Cardiothoracic System, Inc.
    Inventors: David J. Paul, Joshua K. Wallin, Eugene E. Reis, Alfredo R. Cantu, Harry L. Green, Harry Ino, Charles S. Taylor
  • Patent number: 6746467
    Abstract: An access platform having a first and a second blade interconnected to a spreader member that laterally drives the blades apart or together and support pads interconnected to a blade. A torsional member is operably interconnected to a blade and the spreader member and is used to vertically displace the interconnected blade and, thus, increase a surgeon's working space and visual access for the dissection of an internal mammary artery. A tissue retractor interconnected to the blades and is used to draw the soft tissue around an incision away from the surgeon's working area.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: June 8, 2004
    Assignee: Cardio Thoracic Systems, Inc.
    Inventors: Charles S. Taylor, Ivan Sepetka
  • Patent number: 6743169
    Abstract: The invention is methods and devices which a surgeon may use to stabilize the beating heart during a surgical procedure on the heart. Pursuant to the invention, a stabilizing device is introduced through an opening in the chest and brought into contact with the beating heart. By contacting the heart with the device and by exerting a stabilizing force on the device, the motion of the heart caused by the contraction of the heart muscles is effectively eliminated such that the heart is stabilized and the site of the surgery moves only minimally if at all. Typically, in separate steps, the surgeon contacts the heart with the stabilizing means, assesses the degree of movement of the anastomosis site, and exerts a force on the stabilizing means such that the contraction of the beating heart causes orgy minimal excess motion at the surgery site.
    Type: Grant
    Filed: October 10, 2001
    Date of Patent: June 1, 2004
    Assignee: Cardiothoracic Systems, Inc.
    Inventors: Charles S. Taylor, William N. Aldrich, Thomas L. Baughman, Federico J. Benetti, Brian J. Bennett, Michael J. Billig, Thomas J. Fogarty, John J. Frantzen, Richard S. Ginn, Robert C. Glines, Harry L. Green, Dwight P. Morejohn, Brent Regan, Eugene E. Reis, Amr Salahieh, Ivan Sepetka, Benjamin Sherman, Christian Skieller, Valavanur A. Subramanian, Gary B. Weller, William F. Witt
  • Patent number: 6730020
    Abstract: A flexible locking arm for use in an organ manipulator apparatus. The flexible locking arm has a flexible state, used to position the organ manipulator as needed, and a fixed state for mounting the manipulator in a desired orientation. Even in the fixed state, the organ manipulator maintains a limited freedom of movement, to allow the organ held to continue to move substantially according to its natural motion during functioning. For example, in an embodiment where a suction member exerts suction to retract a beating heart and suspend it in a retracted position during surgery by setting the flexible arm to the fixed state, as the retracted heart beats, a complaint joint allows it to expand and contract freely (and otherwise move naturally) at least in the vertical direction so that hemodynamic function is not substantially compromised.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: May 4, 2004
    Assignee: Origin Medsystems Inc.
    Inventors: Steven Peng, Larry Voss, David E. Hancock, Grace A. Carlson, John W Davis, Albert K. Chin, Jaime S. Vargas
  • Patent number: 6732158
    Abstract: An apparatus, method and service model are disclosed which simplify conventional methods for schedule recordings of television programs and enable users to control recording equipment from any location via the Internet. Entities connected to computer networks such as the Internet and web-browser software can schedule recordings of television programs and/or operate the recording equipment. In an example scenario, a user who maintains recording equipment at home may utilize the present invention from his or her workplace or vacation place, accesses a service provider website using her/his user name and password, views the a schedule of television programs provided by a broadcaster or other distributor of programming and selects the television programs to be recorded. The application service provider in turn transmits the selected television program information to a computer connected to a later described remote control unit to execute and operate the recording of selected programs.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: May 4, 2004
    Assignee: Senvid, Inc.
    Inventors: Lambertus Hesselink, Dharmarus Rizal, Joep van Beurden
  • Patent number: 6726622
    Abstract: A heart retractor links lifting of the heart and regional immobilization which stops one part of the heart from moving to allow expeditious suturing while permitting other parts of the heart to continue to function whereby coronary surgery can be performed on a beating heart while maintaining cardiac output unabated and uninterrupted. Circumflex coronary artery surgery can be performed using the heart retractor of the present invention. The retractor includes a plurality of flexible arms and a plurality of rigid arms as well as a surgery target immobilizing element. One form of the retractor can be used in minimally invasive surgery, while other forms of the retractor can accommodate variations in heart size and paracardial spacing.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: April 27, 2004
    Assignee: Origin Medsystems, Inc.
    Inventors: Paul A. Spence, Warren Williamson, IV
  • Patent number: 6705988
    Abstract: A system for manipulating and supporting a beating heart during cardiac surgery, including a gross support element for engaging and supporting the heart (the gross support element preferably including a head which is sized and shaped to cradle the myocardium of the left ventricle”), a suspension head configured to exert lifting force on the heart when positioned near the apical region of the heart at a position at least partially overlying the right ventricle, and a releasable attachment element for releasably attaching at least one of the gross support element and the suspension head to the heart. The releasable attachment element can be a mechanical element (such as one or more staples or sutures') or an adhesive such as glue. Alternatively, the system includes a suspension head and a releasable attachment element for releasably attaching it to the heart, but does not include a gross support element.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: March 16, 2004
    Assignee: Origin Medsystems, Inc.
    Inventors: Paul A. Spence, Warren Williamson, IV
  • Patent number: 6685632
    Abstract: Surgical devices for stabilizing the heart which facilitate anastomosis under beating heart conditions. Various instruments or devices may be maneuvered and secured on a retractor device to provide stabilization of the heart. An instrument mount is provided which is preferably configured to accept a surgical instrument, such as a tissue stabilizer, and to allow the instrument to be easily maneuvered to a desired position and subsequently locked into position. Stabilizer devices each having at least one surface for contacting the heart and each being adapted to be mounted to the retractor while having the ability to be positioned in the desired location against the heart are provided.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: February 3, 2004
    Assignee: Cardiothoracic Systems, Inc.
    Inventors: Lawrence W. Hu, David J. Paul, Eugene Edward Reis, Harry Leonard II Green, Joshua K. Wallin, Dwight P. Morejohn, Charles S. Taylor, Gary B. Weller, Richard M. Ferrari
  • Patent number: 6677254
    Abstract: The formation of a barrier layer over a high k dielectric layer and deposition of a conducting layer over the barrier layer prevents intermigration between the species of the high k dielectric layer and the conducting layer and prevents oxygen scavenging of the high k dielectric layer. One example of a capacitor stack device provided includes a high k dielectric layer of Ta2O5, a barrier layer of TaON or TiON formed at least in part by a remote plasma process, and a top electrode of TiN. The processes may be conducted at about 300 to 700° C. and are thus useful for low thermal budget applications. Also provided are MIM capacitor constructions and methods in which an insulator layer is formed by remote plasma oxidation of a bottom electrode.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: January 13, 2004
    Assignee: Applied Materials, Inc.
    Inventors: Pravin Narwankar, Mouloud Bakli, Ravi Rajagopalan, Randall S. Urdahl, Asher Sinensky, Shankarram Athreya
  • Patent number: 6673013
    Abstract: Methods and devices used to stabilize a beating heart during a surgical procedure on the heart and to expose a surgical site are disclosed. The stabilizing device is introduced through an opening through the chest and brought into contact with the beating heart, and by exerting a stabilizing force on the device, the motion of the heart caused by the contractions of the heart muscles is effectively eliminated. Exposure members are actuable to reposition a portion of the surface of the heart to better expose a target artery or other surgical site. Accordingly, the heart is stabilized and movement of the site of the surgery is minimized.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: January 6, 2004
    Assignee: Cardiothoracic Systems, Inc.
    Inventors: Federico J. Benetti, Charles S. Taylor, Ivan Sepetka, Amr Salahieh, Robert C. Glines, William N. Aldrich, Brent Regan, John J. Frantzen
  • Patent number: 6656113
    Abstract: In accordance with the present invention, there is disclosed surgical methods and apparatus for accessing and stabilizing the heart. The methods and apparatus facilitate access to an anastomosis site, allows various instruments or devices to be maneuvered and secured in place, and provide stabilization of the heart. The apparatus may involve a tissue stabilizer, and in particular a tissue stabilizer for use in immobilizing or stabilizing a portion of the beating heart using a compressive force delivered to the heart via the tissue stabilizer. The stabilizer may include a stabilizer base and a shaft. The shaft may be secured within an appropriate instrument mount preferably fixed to a retractor or other stable platform as disclosed herein. The stabilizers of the present invention provide improved access to a surgical site at a target vessel on the surface of the heart and may include features which facilitate optimal presentation of the target vessel.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: December 2, 2003
    Assignee: Cardiothoracic System, Inc.
    Inventors: Harry Leonard Green, II, Joshua K. Wallin, Dwight P. Morejohn, Charles S. Taylor, Gary B. Weller, Richard M. Ferrari
  • Patent number: 6652454
    Abstract: In accordance with the present invention, there is disclosed surgical methods and apparatus for accessing and stabilizing the heart. The methods and apparatus facilitate access to an anastomosis site, allows various instruments or devices to be maneuvered and secured in place, and provide stabilization of the heart. In particular, the apparatus involves a retractor assembly having a pair of opposing blades having a channel adapted to engage an incision in a patient. The retractor blades may have features to cooperatively engage an instrument mount. The instrument mount may hold an instrument, such as a tissue stabilizer, and allows the instrument to be easily maneuvered. The retractor blades may have a number of suture locks for securing sutures used during surgery. The retractor system is particularly useful in accessing, positioning and stabilizing the beating heart for coronary artery bypass graft surgery.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: November 25, 2003
    Inventors: Lawrence W. Hu, David J. Paul, Eugene Edward Reis, Harry Leonard Green, II
  • Patent number: 6626830
    Abstract: Devices and methods are disclosed for accessing and stabilizing an unstable or moving tissue structure within a patient's body, and in particular, for temporarily stabilizing a target site on the beating heart. The devices generally involve tissue stabilizers having at least one multiple link support member operably connecting a stabilizer foot to a retractor. To minimize motion at the stabilizer foot and improve overall stabilization of the target site, the tissue stabilizer may involve the a stabilizer foot having multiple support members connected to the stabilizer foot at discreet locations. To improve the ability of an instrument support member to be easily articulated through an access incision to position the stabilizer foot as desired, the instrument support member may be operable associated with an attachment or mount which provides additional degrees of freedom at the connection to the retractor.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: September 30, 2003
    Assignee: Cardiothoracic Systems, Inc.
    Inventors: Antonio Califiore, David J. Paul, Eugene Edward Reis, Harry Leonard Green, II
  • Patent number: 6617266
    Abstract: A process for forming high k dielectric thin films on a substrate, e.g., silicon, by 1) low temperature (500° C. or less) deposition of a dielectric material onto a surface, followed by 2) high temperature post-deposition annealing. The deposition can take place in an oxidative environment, followed by annealing, or alternatively the deposition can take place in a non-oxidative environment (e.g., N2), followed by oxidation and annealing.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: September 9, 2003
    Assignee: Applied Materials, Inc.
    Inventors: Annabel Susan Nickles, Ravi Rajagopalan, Pravin Narwankar
  • Patent number: 6610008
    Abstract: A heart retractor links lifting of the heart and regional immobilization which stops one part of the heart from moving to allow expeditious suturing while permitting other parts of the heart to continue to function whereby coronary surgery can be performed on a beating heart while maintaining cardiac output unabated and uninterrupted. Circumflex coronary artery surgery can be performed using the heart retractor of the present invention. The retractor includes a plurality of flexible arms and a plurality of rigid arms as well as a surgery target immobilizing element. One form of the retractor can be used in minimally invasive surgery, while other forms of the retractor can accommodate variations in heart size and paracardial spacing.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: August 26, 2003
    Assignee: Origin Medsystems, Inc.
    Inventors: Paul A. Spence, Warren Williamson, IV