Patents Assigned to Covidien
  • Patent number: 10736758
    Abstract: An aneurysm embolization device can include a body having a single, continuous piece of material that is shape set into a plurality of distinct structural components. For example, the device can have an expandable component and an atraumatic tip portion extending therefrom. Further, the tip portion can be configured to enable the device to be implanted within the aneurysm while tending to mitigate risk of puncturing the aneurysm dome or otherwise assist in framing the aneurysm in advance of placement of additional embolic material.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: August 11, 2020
    Assignee: COVIDIEN
    Inventors: Teresa Ruvalcaba, Earl Frederick Bardsley, Richard Rhee
  • Patent number: 9895186
    Abstract: An electrosurgical generator includes primary and test sources. The primary source supplies a primary signal and the test source supplies a test signal. The electrosurgical generator includes an output circuit and an abnormality detection circuit. The output circuit is electrically coupled to the primary and test sources. The output circuit receives the primary and test signals from the primary and test sources, respectively. The output circuit is electrically coupled to a load to supply the primary signal thereto. The abnormality detection circuit is electrically coupled to the output circuit to detect an abnormality therein as a function of the test signal. The abnormality detection circuit can also determine a location of the abnormality within the output circuit.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: February 20, 2018
    Assignee: Covidien
    Inventor: James A. Gilbert
  • Patent number: 9402770
    Abstract: A wound dressing comprising a substrate comprising a plurality of fibers, at least one antimicrobial agent in the substrate, and an oil emulsion on at least a portion of the substrate is disclosed. The at least one antimicrobial agent can be polyhexamethylene biguanide, and the oil emulsion can consist essentially of a petrolatum in a range of from about 75 wt % to about 90 wt % of the oil emulsion, a mineral oil in a range of from about 10 wt % to about 20 wt % of the oil emulsion, water in a range of from about 0.1 wt % to about 1 wt % of the oil emulsion, and at least one surfactant in a range of from about 1 wt % to about 5 wt % of the oil emulsion.
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: August 2, 2016
    Assignee: COVIDIEN
    Inventors: Ajit Moghe, Anand Kanchagar
  • Patent number: 8764749
    Abstract: A jaw angle detection system for an end effector assembly includes a first electrical contact that connects to a first jaw member and connects to a generator. A sensor connects to a second jaw member (or an actuator) and connects to the generator, and configured to move relative to the first electrical contact upon movement of the second jaw member (or the actuator) when the first and second jaw members are moved to close about tissue disposed therebetween. Information relating to the position of the sensor relative to the first electrical contact is relayed back to the generator to determine an angle between the first and second jaw members.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: July 1, 2014
    Assignee: Covidien
    Inventors: Nicole McKenna, Robert H. Wham
  • Publication number: 20140012108
    Abstract: A compression device includes at least one pressurizable bladder to substantially occlude blood flow into skin capillary beds adjacent to the at least one pressurizable bladder, and a plurality of perfusion sensors. In operation a first-angiosome sensor detects the perfusion parameter of a skin capillary bed in a first angiosome of the limb, and a second-angiosome sensor detects the perfusion parameter of a skin capillary bed in a second angiosome of the limb that is different from the first angiosome. A control circuit maps sensor signals from the first-angiosome sensor to the first angiosome or a first artery of the limb, and maps sensor signals from the second-angiosome sensor to the second angiosome or a second artery of the limb different from the first artery of the limb. For each perfusion sensor, the control circuit determines whether the received sensor signals are indicative of peripheral artery disease.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 9, 2014
    Applicant: Covidien
    Inventor: Thomas McPeak
  • Publication number: 20100185208
    Abstract: Material transport catheters and methods for their use rely on rotation of an impeller within a catheter body and a clearing element for preventing buildup of materials at the opening of the catheter body. The impeller preferably comprises an inner tube or shaft having a helical rotor formed over an outer surface thereof. The clearing element may comprise a free end of a structure near the distal end of the catheter body for disrupting clot, wherein the free end of the structure extends into the distal opening of the catheter body to break up materials as the impeller is rotated. Alternatively, the clearing element may comprise a cutting member disposed at the distal opening of the catheter body.
    Type: Application
    Filed: December 15, 2009
    Publication date: July 22, 2010
    Applicant: Covidien
    Inventors: Denise M. Demarais, Stephen A. Leeflang, Michael A. Evans, Gwendolyn A. Watanabe, John C. Tanner, III, Christian S. Eversull
  • Patent number: 7655016
    Abstract: Material transport catheters and methods for their use rely on rotation of an impeller within a catheter body and a clearing element for preventing buildup of materials at the opening of the catheter body. The impeller preferably comprises an inner tube or shaft having a helical rotor formed over an outer surface thereof. The clearing element may comprise a free end of a structure near the distal end of the catheter body for disrupting clot, wherein the free end of the structure extends into the distal opening of the catheter body to break up materials as the impeller is rotated. Alternatively, the clearing element may comprise a cutting member disposed at the distal opening of the catheter body.
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: February 2, 2010
    Assignee: Covidien
    Inventors: Denise M. Demarais, Stephen A. Leeflang, Michael A. Evans, Gwendolyn A. Watanabe, John C. Tanner, III, Christian S. Eversull
  • Publication number: 20080275406
    Abstract: A diameter reduction mechanism for a fixed seal trocar employing a movable reduction member pivotally connected with a housing. The housing is adapted to be mounted on a proximal end of a valve assembly of the trocar. The reduction member defines a hole aligned with a passageway defmed by the trocar. The hole defines an operable area less than an operable area defined by the passageway. The diameter reduction mechanism is configured for the ease of selectively employing the reduction member between a first position reducing the operable area of the passageway and a second position wherein the reduction member is clear of the passageway. The first position is configured to limit excessive off-axis and angular movements of small diameter surgical instruments and the second position is configured to accommodate an unrestricted use of large diameter surgical instruments in the passageway.
    Type: Application
    Filed: July 7, 2008
    Publication date: November 6, 2008
    Applicant: COVIDIEN
    Inventor: Robert C. Smith