公开(公告)号：US20220104864A1

公开(公告)日：2022-04-07

申请号：US17554139

申请日：2021-12-17

Applicant: Covidien LP

Inventor： Todd W. Boucher ,  William E. Robinson ,  Monte S. Fry ,  James D. Allen, IV ,  Jennifer R. McHenry

IPC: A61B18/12

Abstract: An electrosurgical system includes an electrosurgical instrument having an electrode with a polymeric dielectric coating; and an electrosurgical generator, which includes a power converter configured to generate RF energy; a sensor coupled to the power converter and configured to sense a parameter of the RF energy; and a controller coupled to the sensor and the power converter. The controller is configured to control the power converter to output an RF waveform to achieve conductor breakthrough through the polymeric dielectric coating. The controller is further configured to determine whether the conductor breakthrough occurred based on the parameter; and execute a treatment algorithm based on a determination of the conductor breakthrough.

公开(公告)号：US20220008121A1

公开(公告)日：2022-01-13

申请号：US17484327

申请日：2021-09-24

Applicant: Covidien LP

Inventor： Thomas E. Drochner ,  James D. Allen, IV ,  Gary M. Couture ,  Duane E. Kerr ,  William H. Nau, JR. ,  Robert M. Sharp ,  David J. Van Tol

IPC: A61B18/14

Abstract: An end effector assembly for a surgical instrument includes first and second jaw members each including a jaw housing, an electrically-conductive tissue-treatment plate, and a longitudinally-extending channel. The first and/or second jaw member is movable relative to the other between a spaced-apart position and an approximated position. A cutting mechanism is disposed at least partially within the second jaw member. The cutting mechanism may include an inflatable bladder, a fluid line coupled to the inflatable bladder, and a knife coupled to the inflatable bladder. The cutting mechanism may alternatively include a fluid line, a knife, and a sealing member that defines a variable-volume sealed chamber within the longitudinally-extending channel of the second jaw member. The cutting mechanism may alternatively include at least one electromagnet, at least one electrical wire coupled to the at least one electromagnet, and a knife operably coupled to the at least one electromagnet.

公开(公告)号：US20210307812A1

公开(公告)日：2021-10-07

申请号：US16838551

申请日：2020-04-02

Applicant: Covidien LP

Inventor： James D. Allen, IV ,  John A. Hammerland ,  William E. Robinson ,  Daniel A. Joseph ,  Michael B. Lyons ,  Ken Netzel

IPC: A61B18/14 ,  A61B18/12

Abstract: A method for treating tissue includes determining whether tissue is present between first and second jaw members. In a case where it is determined that tissue is present between the first and second jaw members, the method further includes determining whether activation has been initiated. In a case where it is determined that activation has been initiated, the method further includes supplying electrosurgical energy to the first and second jaw members to seal the tissue and, if it is determined that sealing is complete: stopping the supply of electrosurgical energy; activating a thermal cutting element to supply thermal energy to cut the sealed present tissue; determining if thermal cutting is complete; and, in a case where it is determined that the thermal cutting is complete, stopping and the supply of thermal energy.

公开(公告)号：US20210189583A1

公开(公告)日：2021-06-24

申请号：US17102315

申请日：2020-11-23

Applicant: Covidien LP

Inventor： William Robinson ,  James D. Allen, IV ,  Mark A. Johnston ,  Brendan J. Heinig ,  Hector A. MacPherson

IPC: C25D11/02 ,  A61B18/08 ,  C23C14/34 ,  C23C14/02 ,  C23C14/04 ,  C23C28/00 ,  B41M3/00 ,  B41M1/12 ,  B21D22/02

Abstract: A method of manufacturing a thermal cutting element for a surgical instrument includes manufacturing a substrate, coating at least a portion of the substrate via Plasma Electrolytic Oxidation (PEO), and disposing a heating element on at least a portion of the PEO-coated substrate. The method may further include attaching the thermal cutting element to a jaw member of a surgical instrument.

公开(公告)号：US20210177488A1

公开(公告)日：2021-06-17

申请号：US16717031

申请日：2019-12-17

Applicant: Covidien LP

Inventor： James D. Allen, IV ,  William Robinson ,  Todd Boucher ,  Monte Fry ,  Jennifer McHenry

IPC: A61B18/12 ,  A61B18/14

Abstract: An energy generator includes a connector port configured to couple to an electrosurgical instrument including an electrode having a polymeric dielectric coating; a power converter configured to generate energy; and a sensor coupled to the power converter and configured to sense a parameter of the energy. The energy generator also includes a controller coupled to the sensor and the power converter. The controller is configured to: control the power converter to output energy to modify an electrical property of the polymeric dielectric coating; and determine whether the electrical property of the polymeric dielectric coating has been sufficiently modified by the energy.

公开(公告)号：US11007003B2

公开(公告)日：2021-05-18

申请号：US15354183

申请日：2016-11-17

Applicant: COVIDIEN LP

Inventor： James D. Allen, IV ,  Craig V. Krastins ,  Jessica E. C. Olson ,  Stephen J. Stamm ,  Victor K. Appel ,  Purvishkumar H. Soni ,  Ross Tichota

IPC: A61B18/14 ,  A61B34/35 ,  A61B17/29 ,  A61B17/28 ,  A61B18/00 ,  A61B90/00

Abstract: A surgical instrument includes a housing, a shaft extending distally from the housing, an end effector assembly disposed at a distal end of the shaft, a knife slidably disposed within the shaft, a movable handle operably coupled to the housing, a trigger operably coupled to the housing, a drive assembly operably coupled between the movable handle and the end effector assembly such that movement of the movable handle manipulates the end effector assembly, and a linkage operably coupled between the trigger and the knife such that movement of the trigger deploys the knife. In an initial position of the movable handle, a portion of a drive housing of the drive assembly intersects a path of movement of the linkage to inhibit movement of the linkage, thereby inhibiting actuation of the trigger.

公开(公告)号：US20210001443A1

公开(公告)日：2021-01-07

申请号：US17026363

申请日：2020-09-21

Applicant: Covidien LP

Inventor： John R. Twomey ,  James D. Allen, IV

IPC: B24B3/36 ,  A61B17/32 ,  B08B3/08 ,  A61B90/70

Abstract: A method of sharpening a cutting edge of a knife of a surgical instrument includes manipulating an end effector assembly of a surgical instrument such that first and second jaw members of the end effector assembly are disposed in a spaced-apart position, retaining the first and second jaw members in the spaced-apart position, advancing a knife of the surgical instrument to an extended position wherein the knife extends between the first and second jaw members, retaining the knife in the extended position, and sharpening a cutting edge of the knife.

公开(公告)号：US10856933B2

公开(公告)日：2020-12-08

申请号：US15627714

申请日：2017-06-20

Applicant: COVIDIEN LP

Inventor： James D. Allen, IV

IPC: A61B18/14 ,  A61B18/00 ,  A61B34/30 ,  A61B17/29

Abstract: A surgical device includes a housing, at least one electrical wire, a shaft, and an end effector assembly. The housing defines an interior cavity and first and second housing portions. The first and second housing portions are configured to engage one another to enclose the interior cavity. A channel is defined within an outer perimeter of the first and/or second housing portion such that engagement of the first and second housing portions encloses the channel separate from the interior cavity. The electrical wire(s) is housed within the channel and adapted to connect to a source of energy. The shaft is coupled to the housing and extends distally therefrom. The end effector assembly is disposed at a distal end of the shaft, wherein the end effector assembly is electrically coupled to the at least one electrical wire for supplying energy to the end effector assembly.

公开(公告)号：US10828756B2

公开(公告)日：2020-11-10

申请号：US15960816

申请日：2018-04-24

Applicant: COVIDIEN LP

Inventor： John R. Twomey ,  James D. Allen, IV

IPC: B23P19/02 ,  B25B27/02 ,  A61B18/14 ,  A61B18/12

Abstract: A method of disassembling a surgical instrument includes obtaining a surgical instrument including a housing, an input shaft defining an axis and extending from the housing, and a paddle engaged with the input shaft and configured to pivot about the axis. The method further includes disengaging a cover plate of the paddle from a body of the paddle by providing a force to the cover plate substantially in a direction parallel to the axis and disengaging the body from the input shaft by providing a force to the body substantially in a direction parallel to the axis.

公开(公告)号：US10780544B2

公开(公告)日：2020-09-22

申请号：US15960849

申请日：2018-04-24

Applicant: COVIDIEN LP

Inventor： John R. Twomey ,  James D. Allen, IV

IPC: B24B3/36 ,  A61B17/32 ,  B08B3/08 ,  A61B90/70 ,  A61B18/14 ,  A61B17/00

Abstract: A method of sharpening a cutting edge of a knife of a surgical instrument includes manipulating an end effector assembly of a surgical instrument such that first and second jaw members of the end effector assembly are disposed in a spaced-apart position, retaining the first and second jaw members in the spaced-apart position, advancing a knife of the surgical instrument to an extended position wherein the knife extends between the first and second jaw members, retaining the knife in the extended position, and sharpening a cutting edge of the knife.