Patents Assigned to Covidien LP
  • Publication number: 20210322691
    Abstract: Systems and methods for detecting respiratory mechanics of a patient during mechanical ventilation. An example ventilator implemented method includes receiving pressure and flow measurements of breathing gas. Based on the measurements, the ventilator generates values for a derivative of an estimate of intrapleural pressure (Psync) of the patient, and the ventilator determines a rate of change of the generated Psync values over a portion of an expiratory phase of a breathing cycle. Based on the determined rate of change, the ventilator selects at least one of a triggering mode or a setting for ventilation, and the ventilator controls ventilation of the patient based on the selected triggering mode and/or the setting for ventilation.
    Type: Application
    Filed: April 17, 2020
    Publication date: October 21, 2021
    Applicant: Covidien LP
    Inventors: Nancy F. Dong, Gabriel Sanchez, Kun Li
  • Patent number: 11147621
    Abstract: A microwave ablation system includes a microwave ablation antenna assembly, a generator, a first fluid supply source, and a second fluid supply source. The microwave ablation antenna assembly includes a fluid port for receiving fluid. The generator is coupled to the microwave ablation antenna assembly. The first fluid supply source is configured to be selectively in fluid communication with the fluid port to supply a first fluid to the microwave ablation antenna assembly. The second fluid supply source is configured to be selectively in fluid communication with the fluid port to supply a second fluid to the microwave ablation antenna assembly.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: October 19, 2021
    Assignee: COVIDIEN LP
    Inventors: William J. Dickhans, Flor De Maria R. Nonalaya
  • Patent number: 11147622
    Abstract: A method of directing energy to tissue using a fluid-cooled antenna assembly includes the initial step of providing an energy applicator. The energy applicator includes an antenna assembly and a hub providing at least one coolant connection to the energy applicator. The method also includes the steps of providing a coolant supply system including a fluid-flow path fluidly-coupled to the hub for providing fluid flow to the energy applicator, positioning the energy applicator in tissue for the delivery of energy to tissue when the antenna assembly is energized, and providing a thermal-feedback-controlled rate of fluid flow to the antenna assembly when energized using a feedback control system operably-coupled to a flow-control device disposed in fluid communication with the fluid-flow path.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: October 19, 2021
    Assignee: COVIDIEN LP
    Inventors: Richard A. Willyard, Joseph D. Brannan
  • Patent number: 11147472
    Abstract: Techniques for determining a volume of exhaled CO2 as a function of time using side-stream capnography, including obtaining flow dynamics measurements of a subject from a flow sensor; obtaining CO2 concentration measurements of the subject from a side-stream CO2 monitor; determining a duration of time (?Tsl) for a sample of gas to flow from a reference point to the side-stream CO2 monitor; synchronizing in time the CO2 concentration measurement with the flow dynamics measurement, based on the determined ?Tsl; and determining a volume of CO2 exhaled as a function of time, based on the flow dynamics measurement and the synchronized CO2 concentration measurement.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: October 19, 2021
    Assignee: COVIDIEN LP
    Inventors: Joshua Lewis Coleman, Michal Ronen
  • Patent number: 11147548
    Abstract: A surgical apparatus is provided. The surgical apparatus includes a proximal body portion, a distal body portion selectively articulable relative to the proximal body portion at an articulation joint, and a first drive gear disposed within the distal body portion. The distal body portion has a diameter and a length. The length of the distal body portion is substantially the same as the diameter of the distal body portion.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: October 19, 2021
    Assignee: Covidien LP
    Inventors: David Nicholas, John Beardsley, Russell Pribanic
  • Patent number: 11147563
    Abstract: A vascular remodeling device is provided. The device has an anchor portion, sized for deployment in a blood vessel, that is radially expandable from a collapsed state to an expanded state. The device also includes a distal portion sized for deployment in a blood vessel. The distal portion is radially expandable from a collapsed state to an expanded state and has a distal face that is sufficiently occlusive in the distal-to-proximal direction to perform a therapeutic blocking function in an aneurysm neck. The device also has an intermediate portion that interconnects a distal end of the anchor portion and a proximal end of the distal portion. In some embodiments, the anchor portion and/or distal portion has a plurality of interconnected struts.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: October 19, 2021
    Assignee: COVIDIEN LP
    Inventors: Masoud Molaei, Evan Epstein, Gabriel Newell, Quang Tran
  • Patent number: 11147545
    Abstract: A tissue guard for use with a surgical access device includes a proximal ring having proximal and distal ends, the distal end configured to operably couple to a ground ring that ultimately electrically connects to an electrical ground. One or more mechanical interfaces extend about the proximal ring and are configured to mechanically engage a rim of an access device to secure the tissue guard thereon. A retention body is configured to operably couple to a distal end of the ground ring, the retention body including a distal end configured to operably engage the access device to secure the tissue guard therein.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: October 19, 2021
    Assignee: Covidien LP
    Inventors: Justin J. Thomas, Saumya Banerjee, Jacob C. Baril, Matthew A. Dinino, Roy J. Pilletere
  • Patent number: 11147631
    Abstract: Disclosed are systems, devices, and methods for performing treatment along a lumen network, an exemplary method comprising receiving image data of a patient's lungs, mapping one or more luminal networks inside the patient's lungs based on the received image data, identifying a treatment target in the image data, determining a luminal pathway to the treatment target via at least one of the luminal networks, configuring treatment parameters for treatment of the treatment target and at least one of the luminal networks, navigating a tool inside at least one of the luminal networks to the treatment target, treating the treatment target with a primary treatment modality, and treating the luminal pathway of at least one of the luminal networks leading to or from the treatment target with a secondary treatment modality.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: October 19, 2021
    Assignee: COVIDIEN LP
    Inventor: William S. Krimsky
  • Patent number: 11147613
    Abstract: A surgical instrument includes a housing having an elongated shaft extending distally therefrom configured to support an end effector at a distal end thereof. A handle operably couples to a drive assembly and is moveable to actuate the end effector. The drive assembly includes: front and rear drive tubes, the rear drive tube including a front washer disposed at a distal end thereof, the front drive tube including a rear washer disposed at a proximal end thereof; a stopper slidably disposed atop the front tube, the stopper and the rear washer defining a dead space therebetween; and a spring operably associated with the stopper. Initial actuation of the handle moves the front and rear drive tubes to close the end effector to grasp tissue and, once closed, further movement of the handle moves the rear drive tube to slide the stopper to eliminate the dead space.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: October 19, 2021
    Assignee: COVIDIEN LP
    Inventor: Purvishkumar H. Soni
  • Patent number: 11147580
    Abstract: An ultrasonic surgical instrument includes a waveguide defining a blade at a distal end thereof and a lumen extending through a portion of the blade. The blade is configured to receive ultrasonic energy for treating tissue. The instrument further includes first and second conduits each defining a proximal end and a distal end. The second conduit is coaxially disposed about the first conduit. The distal ends of the first and second conduits extend into the lumen. The distal end of the first conduit extends further distally into the lumen than the distal end of the second conduit.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: October 19, 2021
    Assignee: Covidien LP
    Inventors: Robert B. Stoddard, Eric R. Larson, Scott E. M. Frushour, David N. Heard
  • Patent number: 11147560
    Abstract: A stapling apparatus includes a cartridge assembly, an anvil assembly, and a buttress material. The cartridge assembly includes pushers configured to eject the respective surgical staples from the cartridge assembly, and an outer wall defining a cavity and having a finger deflectably extending over the cavity. The buttress material includes an annular body and a tab extending proximally from the annular body such that at least a portion of the tab is wrapped around the finger of the outer wall of the staple cartridge assembly. The pushers are movable between a first position in which one of the pushers engages the finger such that the tab is secured against the one of the pushers, and a second position in which the one of the pushers is disengaged from the finger such that a portion of the tab is released from the one of the pushers.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: October 19, 2021
    Assignee: Covidien LP
    Inventor: Justin Williams
  • Patent number: 11147620
    Abstract: According to one aspect of the present disclosure, a microwave antenna assembly is disclosed. The antenna assembly includes a feedline having an inner conductor, an outer conductor and an inner insulator disposed therebetween and a radiating portion including a dipole antenna having a proximal portion and a distal portion. The antenna assembly also comprises a sheath disposed over the feedline and the radiating portion defining a chamber around the feedline and the radiating portion. The chamber is adapted to circulate coolant fluid therethrough. The antenna assembly further includes a connection hub having cable connector coupled to the feedline, an inlet fluid port and an outlet fluid port. The connection hub includes a bypass tube configured to provide for flow of the coolant fluid from the cable connector directly to the outlet fluid port.
    Type: Grant
    Filed: July 14, 2018
    Date of Patent: October 19, 2021
    Assignee: COVIDIEN LP
    Inventors: Richard A. Willyard, Joseph D. Brannan
  • Patent number: 11147561
    Abstract: A reload assembly a shell housing, a staple cartridge, a pusher assembly, a knife carrier, an annular knife, and a spring clip. The shell housing includes an inner housing portion that defines a central bore. The knife carrier includes a body defining a longitudinal axis and a cutout and is movable within the shell housing between advanced and retracted positions. The spring clip is supported on the inner housing portion of the shell housing and has a locking tang and an engagement portion. The spring clip is movable from a first position in which the locking tang is received within the cutout of the knife carrier to obstruct advancement of the knife carrier to a second position in which the locking tang is removed from the cutout of the knife carrier.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: October 19, 2021
    Assignee: Covidien LP
    Inventor: Anthony Sgroi, Jr.
  • Patent number: 11147566
    Abstract: A surgical clip applier includes a handle assembly, an elongated shaft, a drive shaft, a cam pin, and an end effector. The cam pin is disposed in mechanical cooperation with the drive shaft. The end effector is disposed adjacent a distal end of the elongated shaft and includes a first jaw member and a second jaw member. The end effector is disposed in operative engagement with the drive shaft such that longitudinal translation of the drive shaft relative to the housing of the handle assembly causes the first jaw member to move toward the second jaw member. The first jaw member includes a first cam slot configured to slidingly receive the cam pin. The first cam slot defines a first portion having a first slope and a second portion having second slope.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: October 19, 2021
    Assignee: COVIDIEN LP
    Inventors: Roy J. Pilletere, Eric Brown, Jacob C. Baril, Gregory R. Morck, Saumya Banerjee, Justin Thomas, Matthew A. Dinino
  • Patent number: 11147587
    Abstract: A surgical access apparatus including a cannula defining an internal lumen, the cannula having a connection for receiving insufflation fluid. The apparatus also includes an obturator assembly, the obturator assembly configured to be inserted through a cannula so as to define an interstitial space between the cannula and the obturator assembly. The interstitial space is in fluid communication with the cannula connection so as to convey the insufflation fluid. The obturator assembly includes an obturator shaft having a hollow interior and a tip member at a distal end of the obturator shaft. The tip member is configured to penetrate and/or dissect through tissue. The tip member has an outer surface that defines a channel, the channel being in fluid communication with the interstitial space to as to convey the insufflation fluid from a proximal end of the tip member to a distal end of the tip member.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: October 19, 2021
    Assignee: Covidien LP
    Inventors: Christopher Kelly Evans, Gregory Fischvogt
  • Publication number: 20210316104
    Abstract: Methods and systems for increasing oxygen concentration. An example system includes an oxygen valve configured to be coupled to an oxygen source, an oxygen plenum coupled to the valve, and a mixing valve. The mixing valve includes an oxygen inlet coupled to the oxygen plenum, an ambient-air inlet, and an outlet configured to be attached to an inlet of a blower of a ventilator. The system also includes a pressure sensor, coupled to the oxygen plenum, and a control device communicatively coupled to the pressure sensor and the oxygen valve. The control device receives a differential pressure, measured by the pressure sensor, and based on the measured differential pressure, generates a control signal to control the oxygen valve to maintain a target pressure of gas within the oxygen plenum.
    Type: Application
    Filed: April 7, 2021
    Publication date: October 14, 2021
    Applicant: Covidien LP
    Inventor: Donald J. Novkov
  • Publication number: 20210316105
    Abstract: The present disclosure relates generally to medical devices and, more particularly, to a gas mixing system for a medical ventilator. A gas mixer is provided to adjust the oxygen concentration of environmental air for a blower-based ventilator, by adjusting the mix of air upstream of the ventilator and providing the mixed air to the ventilator's environmental air inlet.
    Type: Application
    Filed: April 9, 2021
    Publication date: October 14, 2021
    Applicant: Covidien LP
    Inventors: Neil Godara, Matthew J. Phillips, Amand Kasimatis, Donald J. Novkov, Patrick S. Ryan, Amanda Centazzo-Colella, Laurentiu Murtescu, Amanda A. Hartley, Michael J. N. Matsumoto, Jacques L. Vassal, Danian Yang, Randy Yang
  • Patent number: 11144495
    Abstract: An authentication and information system for use in a surgical stapling system includes a microprocessor configured to demultiplex data from a plurality of components in the surgical system. The authentication and information system can include one wire chips and a coupling assembly with a communication connection.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: October 12, 2021
    Assignee: Covidien LP
    Inventors: Ethan Collins, David Durant, John Hryb
  • Patent number: 11141191
    Abstract: A surgical access assembly includes a surgical syringe and a balloon trocar. The balloon trocar has a collar in fluid communication with a balloon. The collar has a check valve configured to control the passage of inflation medium to and from the balloon. The syringe has a barrel and a plunger. The barrel of the syringe has a tip configured for engaging the check valve to discharge the inflation medium into the balloon. The syringe has a lateral extension configured for receipt in the check valve for opening the check valve to rapidly discharge inflation medium from the balloon.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: October 12, 2021
    Assignee: Covidien LP
    Inventors: Kevin Desjardin, Astley C. Lobo
  • Patent number: 11141163
    Abstract: A circular stapling device includes an anvil assembly and an adaptor assembly including a shell assembly. The adaptor assembly includes an anvil retainer including an asymmetric tip. The anvil assembly has a center rod, an anvil head supported on the center rod, and an alignment member. The center rod has a proximal portion and a distal portion and defines a channel that extends from the proximal portion to the distal portion. The alignment member is positioned within the channel and is configured to engage the asymmetric trocar tip of the anvil retainer of the adaptor when the anvil assembly is attached to the anvil retainer to properly align the anvil assembly with the shell assembly.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: October 12, 2021
    Assignee: Covidien LP
    Inventors: Joseph Eisinger, David Valentine