Patents Assigned to Arthrocare Corp
  • Patent number: 7285124
    Abstract: A suture loop is formed in a hollow braided suture by feeding one end of a length of suture through a part in the braid of the suture and into the inner lumen formed by the hollow braid. The braided configuration of the suture allows it to be expanded in diameter by pushing and reduced in diameter by pulling. Said end of suture is passed continuously through said inner lumen forming a loop of suture with a single tail. The loop may be tightened by pulling on said first end of the suture while pushing on said outer hollow braid. The loop may be locked by extending or pulling on said outer hollow braid to reduce its diameter and lock it down around said first end of the suture.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: October 23, 2007
    Assignee: Arthrocare Corp
    Inventor: Seth A. Foerster
  • Patent number: 7131969
    Abstract: The present invention provides systems and methods for selectively applying electrical energy to a target location within the head and neck of a patient's body, particularly including tissue in the ear, nose and throat. The present invention applies high frequency (RF) electrical energy to one or more electrode terminals in the presence of electrically conductive fluid to remove and/or modify the structure of tissue structures. The present invention is particularly useful for treating sleep obstructive disorders, such as sleep apnea and snoring.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: November 7, 2006
    Assignee: Arthrocare Corp
    Inventors: David C. Hovda, Maria B. Ellsberry, Philip E. Eggers, Hira V. Thapliyal
  • Patent number: 6766202
    Abstract: The present invention provides systems, apparatus and methods for selective applying energy to a patient's dermis tissue to generate the growth of new collagen in this tissue, while minimizing the effect on the outer epidermis layer, thereby minimizing or suppressing the wound healing phase of the procedure. In one aspect of the invention, a method includes positioning a first electrode adjacent to, or in contact with, a region on or within a patient's skin, and applying a sufficient high frequency voltage between the first electrode and a second electrode to create a heat injury to a target tissue within the patient's dermis layer without ablating the epidermis layer overlying the target tissue. Typically, the voltage applied to the first and second electrodes is sufficient to induce heating of the dermis layer to about 60°-80° C., preferably about 65°-75° C.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: July 20, 2004
    Assignee: ArthroCare Corp.
    Inventors: Ronald A. Underwood, Jean Woloszko
  • Patent number: 6632220
    Abstract: An electrosurgical probe (10) comprises a shaft (13) having an electrode array (58) at-its distal end and a connector (19) at its proximal end for coupling the electrode array to a high frequency power supply (28). The shaft includes a return electrode (56) recessed from its distal end and enclosed within an insulating jacket (18). The return electrode defines an inner passage (83) electrically connected to both the return electrode and the electrode array for passage of an electrically conducting liquid (50). By applying high frequency voltage to the electrode array and the return electrode, the electrically conducting liquid generates a current flow path between the return electrode and the electrode array so that target tissue may be cut or ablated. The probe is particularly useful in dry environments, such as the mouth or abdominal cavity, because the electrically conducting liquid provides the necessary return current path between the active and return electrodes.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: October 14, 2003
    Assignee: ArthroCare Corp.
    Inventors: Philip E. Eggers, Hira V. Thapliyal
  • Patent number: 6623454
    Abstract: Systems and methods are provided for performing electrosurgical interventions, such as selectively contracting soft collagen tissue and other body structures, while limiting thermal damage or molecular dissociation of such tissue and limiting the thermal damage to tissue adjacent to and underlying the treatment site. The systems and methods of the present invention are particularly useful for surgical procedures in electrically conducting environments, such as arthroscopic procedures in the joints, e.g., shoulder, knee, hip, hand, foot, elbow or the like. The present invention is also useful in relatively dry environments, such as treating and shaping the cornea, and dermatological procedures involving surface tissue contraction of tissue underlying the surface of the skin for tissue rejuvenation, wrinkle removal and the like.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: September 23, 2003
    Assignee: Arthrocare Corp.
    Inventors: Philip E. Eggers, Hira V. Thapliyal
  • Patent number: 6620155
    Abstract: The present invention provides systems and methods for selectively applying electrical energy to a target location within a patient's body, particularly including tissue in the spine. The present invention applies high frequency (RF) electrical energy to one or more electrode terminals in the presence of electrically conductive fluid to contract collagen fibers within the tissue structures. In one aspect of the invention, a system and method is provided for treating herniated or swollen discs within a patient's spine by applying sufficient electrical energy to the disc tissue to contract or shrink the collagen fibers within the nucleus pulposis. This causes the pulposis to shrink and withdraw from its impingement on the spinal nerve.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: September 16, 2003
    Assignee: Arthrocare Corp.
    Inventors: Ronald A. Underwood, Terry S. Davison, Hira V. Thapliyal, Philip E. Eggers
  • Patent number: 6589237
    Abstract: Electrosurgical methods and apparatus for removing tissue from a target site of a patient. An electrosurgical suction apparatus includes an aspiration channel in communication with a distal aspiration port, and an electrode support having a plurality of active electrodes disposed thereon, the plurality of active electrodes spanning the aspiration port. Each of the plurality of active electrodes is adapted for removing tissue from a target site to form low molecular weight ablation by-products. Each of the plurality of active electrodes is also adapted for digesting resected tissue fragments to yield low molecular weight ablation by-products. Ablation by-products and resected tissue fragments are readily removed from the target site via an aspiration stream flowing proximally through the aspiration channel.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: July 8, 2003
    Assignee: ArthroCare Corp.
    Inventors: Jean Woloszko, Theodore C. Ormsby, Christopher L. Willink, Terry S. Davison, Steve Masterson
  • Patent number: 6575968
    Abstract: An electrosurgical ablation probe is provided having a shaft with a proximal end portion and a tongue-shaped distal end portion sized to fit within confined (e.g., narrow) spaces within the patient's body, such as the spaces around the articular cartilage between the femur and tibia and the spaces between adjacent vertebrae in the patient's spine. The probe includes at least one active electrode integral with or coupled to the tongue-shaped distal end portion and a connector on the proximal end portion for coupling the active electrode to an electrosurgical generator. The tongue-shaped distal end portion is substantially planar, and it offers a low profile, to allow access to confined spaces without risking iatrogenic injury to surrounding tissue, such as articular cartilage.
    Type: Grant
    Filed: May 16, 2000
    Date of Patent: June 10, 2003
    Assignee: ArthroCare Corp.
    Inventors: Philip E. Eggers, Hira V. Thapliyal