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).
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Patent number: 11896473Abstract: 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: GrantFiled: May 27, 2021Date of Patent: February 13, 2024Assignee: COVIDIEN LPInventors: Srinivasa Murthy Aravalli A V V L N, Ravi Sekhar Gutti, Rajanikanth Mandula, Jitendra Bhargava Srinivas, Raja Kamaraj
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Patent number: 11819209Abstract: 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: GrantFiled: August 3, 2021Date of Patent: November 21, 2023Assignee: Covidien LPInventors: Suresh Kumar Prema Mohanasundaram, Brian J. Creston, David M. Chowaniec, Roanit A. Fernandes, Hari Naga Mahesh Kalepu, Raja Kamaraj
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Patent number: 11812991Abstract: 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: GrantFiled: August 19, 2020Date of Patent: November 14, 2023Assignee: Covidien LPInventors: Garrett Ebersole, Hari Naga Mahesh Kalepu, Raja Kamaraj, Sabastian George, Dharani Gandhi
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Publication number: 20230038169Abstract: 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: ApplicationFiled: August 3, 2021Publication date: February 9, 2023Inventors: Suresh Kumar Prema Mohanasundaram, Brian J. Creston, David M. Chowaniec, Roanit A. Fernandes, Hari Naga Mahesh Kalepu, Raja Kamaraj
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Publication number: 20220008185Abstract: 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: ApplicationFiled: May 27, 2021Publication date: January 13, 2022Inventors: Srinivasa Murthy Aravalli A V V L N, Ravi Sekhar Gutti, Rajanikanth Mandula, Jitendra Bhargava Srinivas, Raja Kamaraj
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Publication number: 20210401431Abstract: 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: ApplicationFiled: May 7, 2021Publication date: December 30, 2021Inventors: Srinivasa Murthy Aravalli AVVLN, Ravi Sekhar Gutti, Jitendra Bhargava Srinivas, Suresh Kumar Prema Mohanasundaram, Raja Kamaraj, Rajanikanth Mandula
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Patent number: 11045176Abstract: 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: GrantFiled: March 12, 2019Date of Patent: June 29, 2021Assignee: COVIDIEN LPInventors: Sabastian Koduthully George, Raja Kamaraj
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Publication number: 20210161516Abstract: 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: ApplicationFiled: February 8, 2021Publication date: June 3, 2021Inventors: Hari Naga Kalepu, Sabastian George, Raja Kamaraj
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Publication number: 20210113240Abstract: 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: ApplicationFiled: August 19, 2020Publication date: April 22, 2021Inventors: Garrett Ebersole, Hari Naga Mahesh Kalepu, Raja Kamaraj, Sabastian George, Dharani Gandhi
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Patent number: 10932767Abstract: 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: GrantFiled: December 7, 2018Date of Patent: March 2, 2021Assignee: Covidien LPInventors: Hari Naga Kalepu, Sabastian George, Raja Kamaraj
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Publication number: 20200178949Abstract: 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: ApplicationFiled: December 7, 2018Publication date: June 11, 2020Inventors: Hari Naga Kalepu, Sabastian George, Raja Kamaraj
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Patent number: 10653400Abstract: 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: GrantFiled: June 20, 2018Date of Patent: May 19, 2020Assignee: Covidien LPInventors: Raja Kamaraj, Sabastian Koduthully George
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Publication number: 20190350570Abstract: 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: ApplicationFiled: March 12, 2019Publication date: November 21, 2019Inventors: Sabastian Koduthully George, Raja Kamaraj
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Publication number: 20190159782Abstract: 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: ApplicationFiled: September 24, 2018Publication date: May 30, 2019Inventors: Raja Kamaraj, Suresh Kumar Prema Mohanasundaram, Sabastian Koduthully George
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Publication number: 20190159665Abstract: 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: ApplicationFiled: November 2, 2018Publication date: May 30, 2019Inventors: Amarsinh Deeliprao Jadhav, Raja Kamaraj, Peter Marshall
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Publication number: 20190159767Abstract: 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: ApplicationFiled: September 24, 2018Publication date: May 30, 2019Inventors: Sabastian Koduthully George, Raja Kamaraj
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Publication number: 20190038269Abstract: 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: ApplicationFiled: June 20, 2018Publication date: February 7, 2019Inventors: Raja Kamaraj, Sabastian Koduthully George