Patents by Inventor Raja Kamaraj

Raja Kamaraj 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).

  • Patent number: 11896473
    Abstract: A mesh deployment device is configured to place a surgical mesh on tissue retro muscularly. In particular, the mesh deployment device includes an arm assembly that is transitionable between a retracted configuration, in which, stationary and covering arms are in superposed relation such that the surgical mesh is supported by the supporting arm therebetween, and a deployed configuration, in which, the stationary, covering, and supporting arms are circumferentially spaced apart to support the surgical mesh thereon.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: February 13, 2024
    Assignee: COVIDIEN LP
    Inventors: Srinivasa Murthy Aravalli A V V L N, Ravi Sekhar Gutti, Rajanikanth Mandula, Jitendra Bhargava Srinivas, Raja Kamaraj
  • Patent number: 11819209
    Abstract: A surgical instrument includes a motor-driven drive shaft, a distal firing rod coupled to a driven element of a surgical end effector, and a clutch mechanism coupled between the drive shaft and the distal firing rod. The clutch mechanism is configured to electrically connect the drive shaft and the distal firing rod upon the distal firing rod experiencing a threshold force. The electrical connection signals a processor that the threshold force has been exceeded.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: November 21, 2023
    Assignee: Covidien LP
    Inventors: Suresh Kumar Prema Mohanasundaram, Brian J. Creston, David M. Chowaniec, Roanit A. Fernandes, Hari Naga Mahesh Kalepu, Raja Kamaraj
  • Patent number: 11812991
    Abstract: Access assemblies include an instrument valve housing and a valve assembly disposed within the instrument valve housing. The valve assembly includes a guard assembly, and a seal assembly disposed adjacent the guard assembly. The seal assembly includes a plurality of seal segments defining a substantially hexagonal body. Each seal segment of the plurality of seal segments includes a base portion and a seal portion extending from the base portion. Each base portion including an outer edge formed of three segments. Each seal segment of the plurality of seal segments is disposed relative to an adjacent seal segment of the plurality of seal segments such that two of the three segments of the outer edge of the respective seal segments align with each other. The valve assembly also includes a centering mechanism for biasing the seal assembly and guard assembly towards a center of the cavity of the instrument valve.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: November 14, 2023
    Assignee: Covidien LP
    Inventors: Garrett Ebersole, Hari Naga Mahesh Kalepu, Raja Kamaraj, Sabastian George, Dharani Gandhi
  • Publication number: 20230038169
    Abstract: A surgical instrument includes a motor-driven drive shaft, a distal firing rod coupled to a driven element of a surgical end effector, and a clutch mechanism coupled between the drive shaft and the distal firing rod. The clutch mechanism is configured to electrically connect the drive shaft and the distal firing rod upon the distal firing rod experiencing a threshold force. The electrical connection signals a processor that the threshold force has been exceeded.
    Type: Application
    Filed: August 3, 2021
    Publication date: February 9, 2023
    Inventors: Suresh Kumar Prema Mohanasundaram, Brian J. Creston, David M. Chowaniec, Roanit A. Fernandes, Hari Naga Mahesh Kalepu, Raja Kamaraj
  • Publication number: 20220008185
    Abstract: A mesh deployment device is configured to place a surgical mesh on tissue retro muscularly. In particular, the mesh deployment device includes an arm assembly that is transitionable between a retracted configuration, in which, stationary and covering arms are in superposed relation such that the surgical mesh is supported by the supporting arm therebetween, and a deployed configuration, in which, the stationary, covering, and supporting arms are circumferentially spaced apart to support the surgical mesh thereon.
    Type: Application
    Filed: May 27, 2021
    Publication date: January 13, 2022
    Inventors: Srinivasa Murthy Aravalli A V V L N, Ravi Sekhar Gutti, Rajanikanth Mandula, Jitendra Bhargava Srinivas, Raja Kamaraj
  • Publication number: 20210401431
    Abstract: A surgical instrument includes a handle assembly, a shaft extending distally from the handle assembly, an articulating section coupled to the shaft, and an end effector coupled to the articulating section. The handle assembly includes a rotatable knob, a first lever, a second lever, and an actuating handle. A flexible drive rod extends through the shaft to the end effector. First and second articulation cables extend through the shaft and are coupled to the articulating section. A proximal end of the flexible drive rod is coupled to the actuating handle and a distal end of the flexible drive rod is coupled to the end effector. A proximal end of the first articulation cable is coupled to the first lever and a proximal end of the second articulation cable is coupled to the second lever. Distal ends of the first and second articulation cables are coupled to the articulating section.
    Type: Application
    Filed: May 7, 2021
    Publication date: December 30, 2021
    Inventors: Srinivasa Murthy Aravalli AVVLN, Ravi Sekhar Gutti, Jitendra Bhargava Srinivas, Suresh Kumar Prema Mohanasundaram, Raja Kamaraj, Rajanikanth Mandula
  • Patent number: 11045176
    Abstract: A specimen retrieval device includes a tubular body defining a longitudinal bore, an inner shaft slidably disposed within the longitudinal bore of the tubular body, and a specimen bag affixed to a support mechanism at the distal portion of the inner shaft. The specimen retrieval device includes a drain tube that passes from within specimen bags and out of the specimen retrieval device that permits passage of fluids out of the specimen bag prior to removal of the device from the body.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: June 29, 2021
    Assignee: COVIDIEN LP
    Inventors: Sabastian Koduthully George, Raja Kamaraj
  • Publication number: 20210161516
    Abstract: A surgical access assembly includes a sleeve assembly, a base member, and a sealing assembly. The sleeve assembly includes a proximal ring, a distal ring, and a sleeve defining a passage therethrough. The base member includes an annular body including a coupling member. The annular body defines an opening in communication with the passage of the sleeve, and a circumferential groove configured to support the proximal ring of the sleeve assembly. The sealing assembly includes an annular frame and a seal dimensioned to cover the opening of the base member in a sealing relation. The coupling member of the base member releasably secures the sealing assembly to the base member. The annular frame of the sealing assembly is configured to be in registration with the annular body of the base member such that the proximal ring is interposed between the base member and the sealing assembly.
    Type: Application
    Filed: February 8, 2021
    Publication date: June 3, 2021
    Inventors: Hari Naga Kalepu, Sabastian George, Raja Kamaraj
  • Publication number: 20210113240
    Abstract: Access assemblies include an instrument valve housing and a valve assembly disposed within the instrument valve housing. The valve assembly includes a guard assembly, and a seal assembly disposed adjacent the guard assembly. The seal assembly includes a plurality of seal segments defining a substantially hexagonal body. Each seal segment of the plurality of seal segments includes a base portion and a seal portion extending from the base portion. Each base portion including an outer edge formed of three segments. Each seal segment of the plurality of seal segments is disposed relative to an adjacent seal segment of the plurality of seal segments such that two of the three segments of the outer edge of the respective seal segments align with each other. The valve assembly also includes a centering mechanism for biasing the seal assembly and guard assembly towards a center of the cavity of the instrument valve.
    Type: Application
    Filed: August 19, 2020
    Publication date: April 22, 2021
    Inventors: Garrett Ebersole, Hari Naga Mahesh Kalepu, Raja Kamaraj, Sabastian George, Dharani Gandhi
  • Patent number: 10932767
    Abstract: A surgical access assembly includes a sleeve assembly, a base member, and a sealing assembly. The sleeve assembly includes a proximal ring, a distal ring, and a sleeve defining a passage therethrough. The base member includes an annular body including a coupling member. The annular body defines an opening in communication with the passage of the sleeve, and a circumferential groove configured to support the proximal ring of the sleeve assembly. The sealing assembly includes an annular frame and a seal dimensioned to cover the opening of the base member in a sealing relation. The coupling member of the base member releasably secures the sealing assembly to the base member. The annular frame of the sealing assembly is configured to be in registration with the annular body of the base member such that the proximal ring is interposed between the base member and the sealing assembly.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: March 2, 2021
    Assignee: Covidien LP
    Inventors: Hari Naga Kalepu, Sabastian George, Raja Kamaraj
  • Publication number: 20200178949
    Abstract: A surgical access assembly includes a sleeve assembly, a base member, and a sealing assembly. The sleeve assembly includes a proximal ring, a distal ring, and a sleeve defining a passage therethrough. The base member includes an annular body including a coupling member. The annular body defines an opening in communication with the passage of the sleeve, and a circumferential groove configured to support the proximal ring of the sleeve assembly. The sealing assembly includes an annular frame and a seal dimensioned to cover the opening of the base member in a sealing relation. The coupling member of the base member releasably secures the sealing assembly to the base member. The annular frame of the sealing assembly is configured to be in registration with the annular body of the base member such that the proximal ring is interposed between the base member and the sealing assembly.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 11, 2020
    Inventors: Hari Naga Kalepu, Sabastian George, Raja Kamaraj
  • Patent number: 10653400
    Abstract: A specimen retrieval device includes a deployment assembly and a specimen retrieval bag supported by the deployment assembly. The deployment assembly includes an insertion tube, a shaft slidably receivable through the insertion, a handle disposed on a proximal end portion of the shaft, and a support assembly disposed on a distal end portion of the shaft. The specimen retrieval bag includes a pouch portion supported by the support assembly, a tail portion extending from the pouch portion and secured to the handle, and a closure cord extending through the pouch portion for cinching the pouch portion.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: May 19, 2020
    Assignee: Covidien LP
    Inventors: Raja Kamaraj, Sabastian Koduthully George
  • Publication number: 20190350570
    Abstract: A specimen retrieval device includes a tubular body defining a longitudinal bore, an inner shaft slidably disposed within the longitudinal bore of the tubular body, and a specimen bag affixed to a support mechanism at the distal portion of the inner shaft. The specimen retrieval device includes a drain tube that passes from within specimen bags and out of the specimen retrieval device that permits passage of fluids out of the specimen bag prior to removal of the device from the body.
    Type: Application
    Filed: March 12, 2019
    Publication date: November 21, 2019
    Inventors: Sabastian Koduthully George, Raja Kamaraj
  • Publication number: 20190159782
    Abstract: A surgical ligation clip includes first and second jaws that are connected at their proximal ends to each other by a living hinge. Each of the jaws includes a clamping surface that is in opposition to the clamping surface of the other jaw. In order to prevent the body vessel from moving proximally beyond the clamping surfaces of the first and second jaws, a tissue stop is formed at a proximal end of the clamping surfaces of the surgical ligation clip. In embodiments, the tissue stop includes a first stop member that extends from the proximal end of the clamping surface of the first jaw towards the second jaw and a second stop member that extends from the proximal end of the clamping surface of the second jaw member towards the first jaw.
    Type: Application
    Filed: September 24, 2018
    Publication date: May 30, 2019
    Inventors: Raja Kamaraj, Suresh Kumar Prema Mohanasundaram, Sabastian Koduthully George
  • Publication number: 20190159665
    Abstract: A device for cleaning a medical videoscope includes a housing defining a channel, a disposable cartridge configured to be removable disposed within the channel of the housing, and a heating module. The cartridge includes an elongate body defining a cavity therein configured for receipt of a medical videoscope. The cartridge includes a white balancing material disposed in a distal portion of the elongate body, a defogging material disposed in the elongate body, a valve supported in a proximal portion of the elongate body, and a seal disposed over the valve.
    Type: Application
    Filed: November 2, 2018
    Publication date: May 30, 2019
    Inventors: Amarsinh Deeliprao Jadhav, Raja Kamaraj, Peter Marshall
  • Publication number: 20190159767
    Abstract: A specimen retrieval device includes a tubular body defining a longitudinal bore, an inner shaft slidably disposed within the longitudinal bore of the tubular body, and a specimen bag affixed to a support mechanism at the distal portion of the inner shaft. In embodiments, the specimen bag has an opening capable of being closed by an interlocking assembly after placement of tissue therein, but prior to removal of the device from the body.
    Type: Application
    Filed: September 24, 2018
    Publication date: May 30, 2019
    Inventors: Sabastian Koduthully George, Raja Kamaraj
  • Publication number: 20190038269
    Abstract: A specimen retrieval device includes a deployment assembly and a specimen retrieval bag supported by the deployment assembly. The deployment assembly includes an insertion tube, a shaft slidably receivable through the insertion, a handle disposed on a proximal end portion of the shaft, and a support assembly disposed on a distal end portion of the shaft. The specimen retrieval bag includes a pouch portion supported by the support assembly, a tail portion extending from the pouch portion and secured to the handle, and a closure cord extending through the pouch portion for cinching the pouch portion.
    Type: Application
    Filed: June 20, 2018
    Publication date: February 7, 2019
    Inventors: Raja Kamaraj, Sabastian Koduthully George