Patents by Inventor David N. Heard
David N. Heard has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11883028Abstract: A tissue monitoring system includes a sensor, a sensor reader, and at least one computing device. The sensor is releasably coupled to a staple by a tether and is configured to measure a physiological parameter of tissue and convert the measurement into a signal. The sensor reader is configured to receive the signal from the sensor and the at least one computing device is configured to receive the signal from the sensor reader and process the signal into physiological data. The sensor is implanted in tissue by the staple.Type: GrantFiled: September 8, 2021Date of Patent: January 30, 2024Assignee: COVIDIEN LPInventors: Osvaldo A. Barrera, David N. Heard, Jeffrey A. Miller, Kasey A. Grim, Joe Sartor
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Patent number: 11864822Abstract: A surgical instrument includes a first actuation assembly coupled to a first component and movable from a first position to a second position to actuate the first component. A biasing member coupled to the first actuation assembly is configured to bias the first actuation assembly towards the first position. A second actuation assembly is coupled to a second component and is selectively actuatable to actuate the second component. The second actuation assembly is coupled to the first actuation assembly such that actuation of the second actuation assembly effects movement of the first actuating assembly from the first position towards the second position. A linkage assembly is configured to reduce the bias applied to the first actuation assembly when the second actuation assembly effects movement of the first actuation assembly.Type: GrantFiled: September 15, 2020Date of Patent: January 9, 2024Assignee: Covidien LPInventors: John J. Kappus, David N. Heard
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Publication number: 20230210603Abstract: A surgical system is configured to augment the visualization environment presented to the surgeon by merging, in real-time, video feed and ultrasound imaging; tracking anatomy and instruments; identifying critical structures; generating and displaying 3-dimensional models of relevant anatomy; providing actionable guidance to the user; and enabling data collection and processing. The surgical system may include a tissue-marking surgical instrument configured to simultaneously identify critical structures beneath an organ surface and mark the organ surface at a location overlapping the identified critical structures.Type: ApplicationFiled: May 7, 2021Publication date: July 6, 2023Inventors: Osvaldo A. Barrera, Joe D. Sartor, David N. Heard
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Publication number: 20230076424Abstract: A tissue monitoring system includes a sensor, a sensor reader, and at least one computing device. The sensor is releasably coupled to a staple by a tether and is configured to measure a physiological parameter of tissue and convert the measurement into a signal. The sensor reader is configured to receive the signal from the sensor and the at least one computing device is configured to receive the signal from the sensor reader and process the signal into physiological data. The sensor is implanted in tissue by the staple.Type: ApplicationFiled: September 8, 2021Publication date: March 9, 2023Inventors: Osvaldo A. Barrera, David N. Heard, Jeffrey A. Miller, Kasey A. Grim, Joe Sartor
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Patent number: 11571193Abstract: A vein harvesting device is disclosed. The vein harvesting device includes a handle assembly, at least one elongated portion, first and second end effectors, and a tip. Each end effector is disposed adjacent a distal portion of the at least one elongated portion. Each end effector includes a first jaw member and a second jaw member, and at least one jaw member is movable toward the other jaw member. The tip is disposed in mechanical cooperation with the elongated portion. A distal end of the tip extends distally beyond a distal-most end of the first end effector. The first end effector is movable independently of the tip, and the second end effector is movable independently of the tip.Type: GrantFiled: April 10, 2020Date of Patent: February 7, 2023Assignee: COVIDIEN LLPInventors: Ashish Sharma, David N. Heard, Joe D. Sartor
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Publication number: 20220151682Abstract: An electrosurgical device is provided that includes a handset having a shaft extending therefrom, a pair of active electrodes at a distal end of the shaft, and a movable, electrically floating electrode selectively positionable between the active electrodes. The floating electrode, when positioned to contact tissue between the active electrodes, modifies the electrosurgical current flows through tissue. The resultant modified current flows enables a surgeon to more effectively to control tissue desiccation by focusing electrosurgical energy toward targeted tissue and by reducing peripheral current flows. Embodiments are provided wherein the active electrodes include cooling provisions. Related electrosurgical systems and method of use are also provided.Type: ApplicationFiled: February 4, 2022Publication date: May 19, 2022Inventors: Joe D. Sartor, David N. Heard, Arlen K. Ward
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Patent number: 11318032Abstract: A sphincter assist device includes a plurality of interconnected and adjacent links which define a ring. Each link includes a body section and a latch cam. The body section includes a first set of side beams and a first set of snap arms. The latch cam includes a post extending from the body section and a cam disposed at an end portion of the post. The cam is engagable with the first set of snap arms of an adjacent link. Translation of the cam displaces the first set of snap arms and the first set of side beams to transition the sphincter assist device between open and closed configurations. The first set of snap arms, in combination with the first set of side beams, exert a positive non-linear force profile on the cam, thus defining a non-linear force profile of the sphincter assist device between the open and closed configurations.Type: GrantFiled: March 25, 2020Date of Patent: May 3, 2022Assignee: Covidien LPInventors: John J. Kappus, Joe D. Sartor, John A. Hammerland, III, David N. Heard
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Patent number: 11241272Abstract: An electrosurgical device is provided that includes a handset having a shaft extending therefrom, a pair of active electrodes at a distal end of the shaft, and a movable, electrically floating electrode selectively positionable between the active electrodes. The floating electrode, when positioned to contact tissue between the active electrodes, modifies the electrosurgical current flows through tissue. The resultant modified current flows enables a surgeon to more effectively to control tissue desiccation by focusing electrosurgical energy toward targeted tissue and by reducing peripheral current flows. Embodiments are provided wherein the active electrodes include cooling provisions. Related electrosurgical systems and method of use are also provided.Type: GrantFiled: April 1, 2020Date of Patent: February 8, 2022Assignee: COVIDIEN LPInventors: Joe D. Sartor, David N. Heard, Arlen K. Ward
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Publication number: 20220008035Abstract: A surgical system includes an endoscope, a computing device, a vacuum source, and a laser source. The endoscope defines an elongate body having an ultrasound sensor disposed on a distal portion thereof, a first channel defined through the elongate body defining a first aperture extending through the distal portion, a second channel defined through the elongate body defining a second aperture extending through the distal portion and having an optical waveguide disposed therein. The computing device includes a display screen and a processor having a memory storing a software application, which when executed, processes image data captured by the ultrasound sensor and displays a representation of the patient's anatomy on the display screen. The vacuum source is in fluid communication with the first channel to cause a stone to be retained against the distal portion of the endoscope. The laser source is in electromagnetic communication with the optical waveguide.Type: ApplicationFiled: June 2, 2021Publication date: January 13, 2022Inventors: Joe D. Sartor, David N. Heard, Scott Frushour, Seth S. Gleiman
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Patent number: 11166759Abstract: A surgical forceps including an end effector assembly has first and second jaw members. At least one of the first or second jaw members has a jaw frame defining a channel therein, an insulative member disposed within the channel of the jaw frame, and an electrically-conductive plate having a tissue contacting surface and at least one folded side portion. The insulative member includes a top portion having a tissue facing surface. The tissue contacting surface of the electrically-conductive plate is disposed on the tissue facing surface of the insulative member. The at least one folded side portion of the electrically-conductive plate is folded over the top portion of the insulative member such that the electrically-conductive plate conforms to a shape of the top portion of the insulative member.Type: GrantFiled: April 3, 2018Date of Patent: November 9, 2021Assignee: Covidien LPInventors: John J. Kappus, David N. Heard, Joe D. Sartor
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Patent number: 11147580Abstract: 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: GrantFiled: June 28, 2019Date of Patent: October 19, 2021Assignee: Covidien LPInventors: Robert B. Stoddard, Eric R. Larson, Scott E. M. Frushour, David N. Heard
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Publication number: 20210307839Abstract: A system and method for treating gastroesophageal reflux disease by using an implantation tool to implant a stimulation electrode in a lower esophageal sphincter for stimulation of the lower esophageal sphincter muscle.Type: ApplicationFiled: March 18, 2021Publication date: October 7, 2021Inventors: David N. Heard, Joe D. Sartor
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Publication number: 20210161585Abstract: A surgical instrument including housing having a shaft extending distally therefrom, an outer sleeve disposed about the shaft and selectively translatable relative to the shaft, a first drive shaft disposed within the shaft and translatable relative to the shaft independently of the outer sleeve, a second drive shaft disposed within the first drive shaft and coupled to the outer sleeve to translate in conjunction with the outer sleeve, and a rotatable nose wheel. The rotatable nose wheel is mounted about a distal end of the housing and is rotatably coupled to each of the outer sleeve, the shaft, the first drive shaft, and the second drive shaft such that rotation of the rotatable nose wheel effects corresponding rotation of the outer sleeve, the shaft, the first drive shaft, and the second drive shaft in conjunction with one another and relative to the housing.Type: ApplicationFiled: February 9, 2021Publication date: June 3, 2021Inventors: John J. Kappus, David N. Heard
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Patent number: 10945751Abstract: Surgical instruments and surgical systems including the surgical instrument and a morcellator. The surgical instrument includes a tool assembly having an articulating joint and a screw positioned at a distal end of the articulating joint. The articulating joint is configured to articulate a distal portion of the tool assembly at an angle in relation to the longitudinal axis of the surgical instrument. The screw is configured to engage tissue, for example, a myoma in the uterine wall of a patient, and is configured to pitch and roll the tissue to expose cutting planes. The morcellator is configured to engage the tissue to morcellate the tissue and remove the tissue from a patient.Type: GrantFiled: May 22, 2017Date of Patent: March 16, 2021Assignee: Covidien LPInventors: Joe D. Sartor, David N. Heard
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Patent number: 10912601Abstract: A surgical instrument including housing having a shaft extending distally therefrom, an outer sleeve disposed about the shaft and selectively translatable relative to the shaft, a first drive shaft disposed within the shaft and translatable relative to the shaft independently of the outer sleeve, a second drive shaft disposed within the first drive shaft and coupled to the outer sleeve to translate in conjunction with the outer sleeve, and a rotatable nose wheel. The rotatable nose wheel is mounted about a distal end of the housing and is rotatably coupled to each of the outer sleeve, the shaft, the first drive shaft, and the second drive shaft such that rotation of the rotatable nose wheel effects corresponding rotation of the outer sleeve, the shaft, the first drive shaft, and the second drive shaft in conjunction with one another and relative to the housing.Type: GrantFiled: February 14, 2017Date of Patent: February 9, 2021Assignee: Covidien LPInventors: John J. Kappus, David N. Heard
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Publication number: 20200405377Abstract: A surgical instrument includes a first actuation assembly coupled to a first component and movable from a first position to a second position to actuate the first component. A biasing member coupled to the first actuation assembly is configured to bias the first actuation assembly towards the first position. A second actuation assembly is coupled to a second component and is selectively actuatable to actuate the second component. The second actuation assembly is coupled to the first actuation assembly such that actuation of the second actuation assembly effects movement of the first actuating assembly from the first position towards the second position. A linkage assembly is configured to reduce the bias applied to the first actuation assembly when the second actuation assembly effects movement of the first actuation assembly.Type: ApplicationFiled: September 15, 2020Publication date: December 31, 2020Inventors: John J. Kappus, David N. Heard
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Patent number: 10772642Abstract: A surgical instrument includes a housing, an elongated shaft extending distally from the housing, an end effector assembly, and a trigger assembly. The trigger assembly is disposed in mechanical cooperation with the housing and is configured to longitudinally translate a drive member. The trigger assembly includes a trigger, a gear assembly, a spool, a slider, and a flexible drive member. The trigger is disposed in mechanical cooperation with the gear assembly. The flexible drive member is configured to engage the gear assembly, the spool, and the slider. Movement of the trigger with respect to the housing results in movement of the flexible drive member with respect to the housing and longitudinal movement of the slider with respect to the housing.Type: GrantFiled: August 9, 2017Date of Patent: September 15, 2020Assignee: COVIDIEN LPInventors: John J. Kappus, David N. Heard, Joe D. Sartor
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Patent number: 10772674Abstract: A surgical instrument includes a first actuation assembly coupled to a first component and movable from a first position to a second position to actuate the first component. A biasing member coupled to the first actuation assembly is configured to bias the first actuation assembly towards the first position. A second actuation assembly is coupled to a second component and is selectively actuatable to actuate the second component. The second actuation assembly is coupled to the first actuation assembly such that actuation of the second actuation assembly effects movement of the first actuating assembly from the first position towards the second position. A linkage assembly is configured to reduce the bias applied to the first actuation assembly when the second actuation assembly effects movement of the first actuation assembly.Type: GrantFiled: October 14, 2013Date of Patent: September 15, 2020Assignee: COVIDIEN LPInventors: John J. Kappus, David N. Heard
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Publication number: 20200246059Abstract: An electrosurgical device is provided that includes a handset having a shaft extending therefrom, a pair of active electrodes at a distal end of the shaft, and a movable, electrically floating electrode selectively positionable between the active electrodes. The floating electrode, when positioned to contact tissue between the active electrodes, modifies the electrosurgical current flows through tissue. The resultant modified current flows enables a surgeon to more effectively to control tissue desiccation by focusing electrosurgical energy toward targeted tissue and by reducing peripheral current flows. Embodiments are provided wherein the active electrodes include cooling provisions. Related electrosurgical systems and method of use are also provided.Type: ApplicationFiled: April 1, 2020Publication date: August 6, 2020Inventors: Joe D. Sartor, David N. Heard, Arlen K. Ward
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Publication number: 20200237352Abstract: A vein harvesting device is disclosed. The vein harvesting device includes a handle assembly, at least one elongated portion, first and second end effectors, and a tip. Each end effector is disposed adjacent a distal portion of the at least one elongated portion. Each end effector includes a first jaw member and a second jaw member, and at least one jaw member is movable toward the other jaw member. The tip is disposed in mechanical cooperation with the elongated portion. A distal end of the tip extends distally beyond a distal-most end of the first end effector. The first end effector is movable independently of the tip, and the second end effector is movable independently of the tip.Type: ApplicationFiled: April 10, 2020Publication date: July 30, 2020Inventors: Ashish Sharma, David N. Heard, Joe D. Sartor