Patents by Inventor Sundaram Ravikumar

Sundaram Ravikumar 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).

  • Publication number: 20150148800
    Abstract: A minimally invasive surgical assembly broadly includes an outer hollow needle which has an outer diameter, a longitudinal axis, and a sharp distal end. An insulating member extends through the hollow needle and is movable relative to the hollow needle. An elongated member extends through the insulating member and is movable relative to both the insulating member and the hollow needle. A resilient wire projects from the elongated member and is retractable within and extendable outside of the insulating member and the hollow needle. The insulating member, elongated member, and resilient wire are movable relative to the needle using first and second moving means whereby the surgical assembly assumes various configurations having different operational functions.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 28, 2015
    Inventors: SUNDARAM RAVIKUMAR, H. ALLAN ALWARD, ROBERT F. SMITH, JR.
  • Patent number: 9033906
    Abstract: A therapeutic compression apparatus having a primary wrap, a foot wrap and a stirrup is provided. The primary wrap encircles a first portion of a leg and applies compression thereto. The foot wrap encircles at least a portion of the foot and applies compression thereto. The foot wrap may be integrated with the stirrup, detachably connected or provided separately. The compression apparatus may be configured such that one or more bladders are provided therein. The compression apparatus may include a pressure gauge and pump for controlling an amount of pressure applied to the treatment site. A bladder assembly with a number of fluid bladder configurations is also provided for use within a compression apparatus. The bladder may be configured to provide a gradient pressure profile to the treatment site when filled.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: May 19, 2015
    Assignee: Sun Scientific, Inc.
    Inventors: Timothy J. Nolan, Guy Osborne, Sundaram Ravikumar, Vikram Ravikumar
  • Patent number: 8956351
    Abstract: A minimally invasive surgical assembly broadly includes an outer hollow needle which has an outer diameter, a longitudinal axis, and a sharp distal end. An insulating member extends through the hollow needle and is movable relative to the hollow needle. An elongated member extends through the insulating member and is movable relative to both the insulating member and the hollow needle. A resilient wire projects from the elongated member and is retractable within and extendable outside of the insulating member and the hollow needle. The insulating member, elongated member, and resilient wire are movable relative to the needle using first and second moving means whereby the surgical assembly assumes various configurations having different operational functions.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: February 17, 2015
    Assignee: Teleflex Medical Incorporated
    Inventors: Sundaram Ravikumar, H. Allan Alward, Robert F. Smith, Jr.
  • Patent number: 8617144
    Abstract: A venous closure catheter is disclosed for performing sclerotherapy which includes an elongated catheter body having opposed proximal and distal end portions, a fluid delivery lumen and a guidewire lumen. A plurality of discharge apertures are associated with the distal end portion of the catheter body and communicate with the fluid delivery lumen for delivering a sclerosing solution into the saphenous vein. A circumferential flange is positioned on an exterior surface of the catheter body proximal to the discharge apertures, which has a plurality of projections formed thereon for traumatizing the inner wall of the saphenous vein upon removal of the catheter body therefrom to promote closure of saphenous vein after sclerotherapy. A compression apparatus is disclosed for providing therapeutic pressure subsequent to sclerotherapy. The compression apparatus includes first and second wraps for providing compression of an upper leg, and the lower leg and foot, respectively.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: December 31, 2013
    Inventor: Sundaram Ravikumar
  • Publication number: 20130282046
    Abstract: A compression garment for use on a limb includes a stocking, a first fastening device, and a second fastening device. The stocking has upper and lower portions configured to apply compressive forces to the limb. The upper portion of the stocking is configured to at least partially wrap around the first fastening device during rotation thereof, and the lower portion of the stocking is configured to at least partially wrap around the second fastening device during rotation thereof whereby rotation of the first and second fastening devices adjusts compressive forces applied by the upper and lower portions of the stocking to the limb.
    Type: Application
    Filed: April 24, 2012
    Publication date: October 24, 2013
    Inventor: Sundaram Ravikumar
  • Publication number: 20130203570
    Abstract: Supportive exercise devices assist a user in achieving and maintaining any of a variety of postures prescribed by various exercise practices, including yoga disciplines, and are particularly suited for training, by assisting and guiding a user in proper technique. Such supportive exercise devices are adapted and configured to assist a user in achieving and maintaining an exercise posture and include a seat adapted and configured to be placed under a user, a support frame extending upwardly from the seat, a backrest carried by the support frame, and shoulder straps carried by the support frame, adapted and configured for maintaining the user's shoulders in a predetermined position.
    Type: Application
    Filed: May 16, 2011
    Publication date: August 8, 2013
    Inventors: Sundaram Ravikumar, Allan Alward
  • Publication number: 20120316480
    Abstract: A compression garment includes a wrap member with a proximal end portion and opposed distal end portion. The wrap member is configured to wrap about at least a portion of a lower leg between calf and heel. The wrap member includes an inner sheet configured and adapted to be disposed facing the lower leg in use, and an outer sheet joined to the inner sheet with a leg compression bladder defined between the inner and outer sheets. The leg compression bladder is configured to compress at least a portion of the lower leg to augment venous return flow in the lower leg.
    Type: Application
    Filed: April 11, 2012
    Publication date: December 13, 2012
    Applicant: Sun Scientific, Inc.
    Inventors: Timothy J. Nolan, Guy Osborne, Sundaram Ravikumar, Vikram Ravikumar
  • Patent number: 8313507
    Abstract: A rake retractor for use in minimally invasive medical procedures such as laparoscopic surgery includes a handle shaft, rake prongs, and end configurations that can be used to move elements within a body cavity. The prongs of the rake retractor are biased to an open position such that when the rake prongs extend out of the needle they open, and they are closed by relative movement of the needle over them. The end configurations are offset so that they may be compactly brought together within the narrow space of a needle having a diameter typically not greater than 2.5 mm.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: November 20, 2012
    Assignee: Mini-Lap Technologies, Inc.
    Inventor: Sundaram Ravikumar
  • Patent number: 8230863
    Abstract: A medical assembly includes a platform which is securely mountable to an operating room fixture, and a plurality of arms or arm modules coupled to the platform and each with a grasper for holding a surgical instrument or port. The medical assembly is particularly applicable for laparoscopic surgery although it is not limited thereto.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: July 31, 2012
    Assignee: Mini-Lap Technologies, Inc.
    Inventors: Sundaram Ravikumar, H. Allan Alward, Steven J. Wysocki, Guy L. Osborne
  • Patent number: 8216165
    Abstract: A compression garment includes a backing member with a proximal end portion and opposed distal end portion. The backing member is configured to be disposed about at least a portion of a lower leg between calf and heel and has an inner surface to be disposed facing the lower leg, and an opposite outer surface. The garment further includes at least one compression bladder disposed within the backing member configured to compress at least a portion of the lower leg to augment venous return flow in the lower leg, an elevation member operatively coupled to the backing member and configured to elevate the heel from an underlying support surface and at least one support member disposed along a portion of the elevation member and along a portion of the backing member to retain the elevation member in a desired position with respect to the backing member to elevate the heel.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: July 10, 2012
    Inventors: Sundaram Ravikumar, Guy Osborne, Vikram Ravikumar, Timothy J. Nolan
  • Patent number: 8211138
    Abstract: An improved catheter device includes an elongate shaft having a distal portion adapted to be disposed with the abdominal aorta and a plurality of expandable members disposed thereon. One expandable member is dimensioned and configured so that it rests within the iliac bifurcation when expanded. At least two expandable members are spaced apart from the one expandable member and configured to selectively occlude blood flow to different abdominal/pelvic arteries when expanded. Preferably, the distal-most and the proximal-most expandable members are spaced apart at a distance more than 20 cm and less than 40 cm (and most preferably on the order of 30 cm). The expandable members are preferably realized by four inflatable balloons controlled by fluidic pressure supplied thereto via corresponding inflation lumens in the shaft. The catheter device can be fixated within the abdominal aorta and manipulated in order to quickly and efficiently identify and isolate a hemorrhage flowing from an abdominal artery.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: July 3, 2012
    Assignee: Arvik Enterprises, LLC
    Inventor: Sundaram Ravikumar
  • Publication number: 20120078157
    Abstract: The subject invention includes devices for providing therapeutic pressure to a treatment site. The devices include a bladder portion and a dressing portion. The bladder portion has opposed upper and lower exterior walls sealed to one another along common peripheral edges thereof to form an interior pressure chamber therebetween, without a lip or flange extending around the perimeter of the peripheral edge. The dressing portion is integrated with the bladder portion or detachably provided so that none of the bladder material comes into contact with the patient's skin at the treatment site. The interior pressure chamber of the bladder portion may have a number of configurations and serves as a bolster for the dressing portion, used to aid in the healing process of the wound.
    Type: Application
    Filed: September 27, 2010
    Publication date: March 29, 2012
    Applicant: Sun Scientific, Inc.
    Inventors: Sundaram Ravikumar, Guy Osborne
  • Patent number: 8133255
    Abstract: A minimally invasive surgical assembly includes an outer hollow needle which may be used in puncturing skin to insert and advance the surgical instrument into the body, and a coaxial surgical instrument having a shaft which extends through the outer hollow needle. The outer diameter of the needle may be dimensioned such that a wound formed from the hollow needle puncturing the skin is capable of being closed independent of stitching, and may be approximately 2 mm or smaller. The coaxial surgical instrument includes end effectors at the end of the shaft which are biased to an open position such that when the end effectors of the surgical instrument extend out of the needle they open, and they are closed by relative movement of the needle over them. The assembly preferably includes a first fixing element which is used to fix the relative location of the surgical instrument and the needle.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: March 13, 2012
    Assignee: Mini-Lap Technologies, Inc.
    Inventor: Sundaram Ravikumar
  • Publication number: 20120041351
    Abstract: A therapeutic compression apparatus having a primary wrap, a foot wrap and a stirrup is provided. The primary wrap encircles a first portion of a leg and applies compression thereto. The foot wrap encircles at least a portion of the foot and applies compression thereto. The foot wrap may be integrated with the stirrup, detachably connected or provided separately. The compression apparatus may be configured such that one or more bladders are provided therein. The compression apparatus may include a pressure gauge and pump for controlling an amount of pressure applied to the treatment site. A bladder assembly with a number of fluid bladder configurations is also provided for use within a compression apparatus. The bladder may be configured to provide a gradient pressure profile to the treatment site when filled.
    Type: Application
    Filed: August 12, 2010
    Publication date: February 16, 2012
    Applicant: SUN SCIENTIFIC, INC.
    Inventors: Timothy J. Nolan, Guy Osborne, Sundaram Ravikumar, Vikram Ravikumar
  • Publication number: 20120022422
    Abstract: A venous closure catheter is disclosed for performing sclerotherapy which includes an elongated catheter body having opposed proximal and distal end portions, a fluid delivery lumen and a guidewire lumen. A plurality of discharge apertures are associated with the distal end portion of the catheter body and communicate with the fluid delivery lumen for delivering a sclerosing solution into the saphenous vein. A circumferential flange is positioned on an exterior surface of the catheter body proximal to the discharge apertures, which has a plurality of projections formed thereon for traumatizing the inner wall of the saphenous vein upon removal of the catheter body therefrom to promote closure of saphenous vein after sclerotherapy. A compression apparatus is disclosed for providing therapeutic pressure subsequent to sclerotherapy. The compression apparatus includes first and second wraps for providing compression of an upper leg, and the lower leg and foot, respectively.
    Type: Application
    Filed: April 7, 2011
    Publication date: January 26, 2012
    Applicant: SUN SCIENTIFIC, INC.
    Inventor: Sundaram Ravikumar
  • Publication number: 20120010563
    Abstract: A vascular introducer sheath includes a sheath body having an interior lumen for accommodating a dilator. The vascular introducer further includes a guidewire positioning means operatively associated with the interior lumen of the sheath body for directing a guidewire in either a vascular direction or an arterial direction within a venous system.
    Type: Application
    Filed: April 12, 2011
    Publication date: January 12, 2012
    Inventor: Sundaram Ravikumar
  • Publication number: 20110160538
    Abstract: Various surgical instruments for laparoscopic procedures is provided, which are adapted and configured to aspirate and retract a hollow organ, such as a gallbladder. The surgical instruments can includes a needle body, an anchor that is deployable with respect to the needle body, which is adapted and configured for engaging and retracting the hollow organ. Moreover, an aperture can be provided in connection with the needle body, which is adapted and configured for permitting aspiration of contents of the hollow organ. The anchor can be held within, and deployable from, a lumen of the needle body, or held on, and deployable from, an outside surface of the needle body, for example.
    Type: Application
    Filed: August 25, 2010
    Publication date: June 30, 2011
    Inventors: Sundaram Ravikumar, Allan Alward
  • Patent number: 7967766
    Abstract: A garment that includes at least one inflatable chamber for applying compression to a limb for assisting venous return, and an elevation member to elevate the limb. The elevation member may comprise an inflatable chamber, and the garment may be configured for compressive therapy of the leg while elevating the heel, eliminating or otherwise reducing or mitigating pressure on an individual's heel while the leg is in an extended position and undergoing compressive therapy.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: June 28, 2011
    Inventor: Sundaram Ravikumar
  • Patent number: D711000
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: August 12, 2014
    Assignee: Sun Scientific Inc.
    Inventors: Sundaram Ravikumar, Varun Ponmudi
  • Patent number: D728799
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: May 5, 2015
    Assignee: Sun Scientific, Inc.
    Inventors: Sundaram Ravikumar, Varun Ponmudi