Patents by Inventor Ram H. Paul

Ram H. Paul 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: 20210154031
    Abstract: The present embodiments provide systems and methods for treating a medical condition. In one embodiment, the system comprises a stent having proximal and distal regions, and further having a delivery state and an expanded state. A therapeutic agent is disposed on a segment of the stent. The stent is disposed around an exterior surface of a core assembly in the delivery state. A coupling assembly releasably secures the proximal region of the stent to the exterior surface of the core assembly. The coupling assembly secures the stent to the core assembly for a predetermined period while the stent is in the expanded state and during release of the therapeutic agent at a target site. The coupling assembly further enables the stent to be disengaged from the core assembly and deployed in a bodily passageway.
    Type: Application
    Filed: November 12, 2020
    Publication date: May 27, 2021
    Applicant: COOK MEDICAL TECHNOLOGIES LLC
    Inventors: Alec E. Cerchiari, Brian Feng, Timothy Foley, Christopher Mobley, Gary Neff, Ram H. Paul, JR.
  • Patent number: 10918408
    Abstract: Cutting devices useful for cutting objects or materials are described. Examples of cutting devices useful for creating avulsions in animals, such as human beings, are described. A cutting device includes an elongate main body having proximal and distal ends. A first portion of the main body has a cross-sectional shape that substantially lacks flat surfaces and a second portion of the main body has a cross-sectional shape having one, two or more flat surfaces. The distal end defines a hook having one or more sharpened edges disposed within the notch of the hook. Methods of making cutting devices are also described.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: February 16, 2021
    Assignee: Cook Medical Technologies LLC
    Inventors: Joshua F. Krieger, Ram H. Paul, Zachary Berwick
  • Patent number: 10849607
    Abstract: Systems and methods for sealing an opening in a wall within the body of a patient are disclosed. In one embodiment, the system has an elongated body coupled to a vascular closure device and a resisting member, the elongated body having a high resistance portion and a low resistance portion and being constructed and arranged to interface with a resisting member to apply a conforming force to a vascular closure device. In some exemplary embodiments, the elongated body comprises a large diameter portion positioned in a proximal end region of the elongated body. Methods and other embodiments are disclosed.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: December 1, 2020
    Assignee: Cook Medical Technologies LLC
    Inventors: Cleon Stanley, Ram H. Paul, Jr.
  • Patent number: 10765853
    Abstract: A hemostatic valve assembly is disclosed. The assembly comprises a housing having a sidewall that tapers radially inwardly towards the housing distal end. A valve member having an open proximal end and a tapered distal end with an orifice formed therein is disposed within the housing chamber. The valve member is deformable between a closed configuration in which the orifice is substantially closed and an open configuration in which the orifice is open. A biasing member disposed proximal to the valve member is moveable between a longitudinally compressed condition and a longitudinally expanded condition. When in an expanded condition, the biasing member pushes the valve member longitudinally and against the tapered sidewall of the housing. The tapered sidewall of the housing urges the distal end of the valve member radially inwardly, thus urging the orifice to the substantially closed configuration.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: September 8, 2020
    Assignee: Cook Medicai Technologies LLC
    Inventors: Gary Neff, William Gibbons, Ram H. Paul, Jr.
  • Patent number: 10729416
    Abstract: Devices for closing an internal opening, e.g. a hole in a blood vessel, include a shape memory function. Particular substances have been found to provide advantages in use, and in particular forms of closure structures.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: August 4, 2020
    Assignee: Cook Medical Technologies LLC
    Inventors: Cleon Stanley, Ram H. Paul, Jr.
  • Patent number: 10639061
    Abstract: The present disclosure provides, in certain aspects, unique products and methods for abrading or otherwise disrupting an interior surface of a bodily a vessel. In some forms, these products and methods further incorporate the use of one or more occluding members to be deployed in the bodily vessel in and/or around a disrupted vessel region. Abrasive endoluminal devices, in certain embodiments, exhibit a low-profile first condition for delivery into and/or through the vasculature. The device can then be transitioned to a second, expanded condition inside the vasculature for carrying out a desired abrasion. With these types of devices, the manner and design by which the device transitions from a first condition to a second condition can vary. Embodiments of such are disclosed herein.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: May 5, 2020
    Assignee: Cook Medical Technologies LLC
    Inventor: Ram H. Paul, Jr.
  • Publication number: 20200129285
    Abstract: The present invention relates to methods of making a prosthesis or a stent with a smooth covering.
    Type: Application
    Filed: November 4, 2019
    Publication date: April 30, 2020
    Applicant: Cook Medical Technologies LLC
    Inventors: James C. MERK, Brent A. MAYLE, Gary NEFF, Ram H. PAUL, JR.
  • Patent number: 10463470
    Abstract: The present invention relates to methods of making a prosthesis or a stent with a smooth covering.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: November 5, 2019
    Assignee: Cook Medical Technologies LLC
    Inventors: James C. Merk, Brent A. Mayle, Gary Neff, Ram H. Paul, Jr.
  • Publication number: 20190328561
    Abstract: Disclosed herein is an assembly including a balloon catheter as an inner catheter for the delivery of a self-expanding stent. The delivery assembly may lack a separate pusher structure. A method of using a single assembly to delivery a self-expanding stent and provide a post-dilatation step is also described herein.
    Type: Application
    Filed: April 24, 2019
    Publication date: October 31, 2019
    Inventors: Brent A. Mayle, Ram H. Paul, JR., James C. Merk, Gary Neff, Dean R. Puckett, Austin Neidigh, Thomas Mindel
  • Publication number: 20190328562
    Abstract: Disclosed herein is a hybrid stent having a balloon-expandable portion joined to a self-expanding portion. The hybrid stent is capable of withstanding the forces applied by delivery. Delivery systems for deploying a hybrid stent are described, as are methods of using such delivery systems.
    Type: Application
    Filed: April 24, 2019
    Publication date: October 31, 2019
    Inventors: Brent A. Mayle, Ram H. Paul, James C. Merk, Gary Neff, Dean R. Puckett, Austin Neidigh, Thomas Mindel, Michelle Reynolds
  • Patent number: 10456152
    Abstract: A catheter is provided with a collection chamber located between a seal and a cap. The seal is located distal from the collection chamber, and the cap is located proximal from the collection chamber. The seal may be opened and closed to alternately allow the passage of material into the collection chamber and prevent fluid from escaping from the shaft lumen. The cap may be opened and closed to allow the removal of a mass from the collection chamber and to prevent fluid from escaping during collection of the mass.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: October 29, 2019
    Assignee: Cook Medical Technologies LLC
    Inventors: Dennis J. Griffin, Ram H. Paul, Jr.
  • Patent number: 10441256
    Abstract: Among other things, there are disclosed apparatuses and methods for medically sealing an opening in a vessel or wall. For example, in medical applications, a delivery tube is provided for insertion through a sheath into a vessel (e.g. a blood vessel). A dome-shaped seal fixed to a filament, an absorbent and/or compressible buffer, and a locking member are provided in the delivery tube. The delivery tube is configured so that it can be inserted into the vessel through a sheath. Tension is maintained on the filament to hold the seal against the tube or sheath. The sheath is pulled out, which pulls out the tube at the same time, leaving the seal over the opening in the vessel wall. The locking member compresses the buffer against the outside of the vessel and with the filament holds the seal in place against the inside of a vessel.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: October 15, 2019
    Assignees: Cook Medical Technologies LLC, Cook Biotech Incorporated
    Inventors: Ram H. Paul, Jr., Cleon Stanley, Brian L. Bates, F. Joseph Obermiller, Thomas A. Osborne, Sean D. Chambers
  • Patent number: 10441257
    Abstract: An apparatus and system that includes an elongated body, a vascular closure device that can occlude a hole in a vessel wall coupled to a distal end of the elongated body, a sleeve assembly and a biasing member arranged to elastically deform coupled between the elongated body and the sleeve assembly, wherein the vascular closure device is pliant and is deformable to fit with the sleeve assembly but is too large to fit within the sleeve assembly without deforming it and where application of tension to the elongated body by retracting the sleeve assembly away from the deployed vascular closure device elastically deforms the biasing member and exerts a force on the vascular closure device.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: October 15, 2019
    Assignee: Cook Medical Technologies LLC
    Inventors: Cleon Stanley, Ram H. Paul, Jr.
  • Publication number: 20190167952
    Abstract: The disclosure relates to medical devices and methods of assembling medical devices, such as MRI-compatible interventional wireguides. An example of a wireguide includes a series of individual segments, a plurality of connectors, and a plurality of spacers. Each segment in the series of individual segments has a first end and a second end. Each connector of the plurality of connectors joins adjacent segments in the series of individual segments to one another such that a first end of a first segment and a second end of a second segment in the series of individual segments are attached to a connector of the plurality of connectors. A spacer of the plurality of spacers is disposed between each pair of adjacent segments in the series of individual segments. Each of the segments in the series of individual segments is electrically insulated from an adjacent segment in the series of individual segments.
    Type: Application
    Filed: December 3, 2018
    Publication date: June 6, 2019
    Inventors: Ram H Paul, JR., Richard Swift, Shuo Yang, Tracy Willis, Gary Neff
  • Patent number: 10271970
    Abstract: A perfusion device and a delivery system for repair of a damaged portion of a body vessel. Perfusion device can include a tubular body that is self-expandable, having a proximal portion, a distal portion, and an intermediate portion. One or more series of barbs can be disposed circumferentially along the intermediate portion. Barbs are capable of penetrating into the tunica intima and tunica media of said vessel wall upon insertion of said device into said body vessel, and not into said tunica adventitia. A graft can be associated with the tubular body. Graft has a proximal end and a distal end, and preferably extends entirely along a luminal wall of the tubular body. Graft may also extend along an exterior surface of the tubular body at the proximal and distal portions. Delivery devices for the perfusion implant and methods of delivering the perfusion implant are also provided.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: April 30, 2019
    Assignee: Cook Medical Technologies LLC
    Inventors: Ram H. Paul, Richard A. Swift, Oliver Bach, Ralf Steiner, Angela R. Barnett, Keith R. Milner
  • Patent number: 10226264
    Abstract: A device for thrombolytic therapy is provided. The device includes an elongate catheter with a distal end portion and a proximal end portion and a first lumen extending through both distal and proximal end portions. The distal end portion of the catheter includes an echogenic tubular potion that defines or surrounds a portion of the first lumen. An expandable balloon coaxially surrounds the tubular portion. The tubular portion additionally includes a plurality of indentations defined upon an outer surface thereof.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: March 12, 2019
    Assignee: Cook Medical Technologies LLC
    Inventors: Charles L. McIntosh, Ram H. Paul, Jr., Darin G. Schaeffer, M. Kem Hawkins, Frank J. Fischer, Jr., Grant T. Hoffman
  • Publication number: 20190000432
    Abstract: Among other things, methods and apparatus for inserting devices for closing a tissue opening are disclosed. An anchoring or sealing member has one or more stems and/or filaments that are offset from the center of the member, so that lateral adjustments or movements of the anchoring or sealing member do not uncover the opening, cause the anchoring or sealing member to stick through or pull through the opening. Embodiments including a valve adapted to accommodate a guide wire for addressing emergencies are also disclosed.
    Type: Application
    Filed: September 10, 2018
    Publication date: January 3, 2019
    Applicant: Cook Medical Technologies LLC
    Inventors: Cleon Stanley, Ram H. Paul, JR., Dennis Griffin
  • Patent number: 10143544
    Abstract: A low profile intraluminal medical device includes first, second and third wire members that define arcuate paths having only a single sigmoidal curve. Connectors join the wire members. The medical device can be used by itself or as a component in a medical device that includes other components, such as a prosthetic valve, occluder, or filter.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: December 4, 2018
    Assignee: COOK MEDICAL TECHNOLOGIES LLC
    Inventors: Ram H. Paul, Charles W. Agnew
  • Patent number: 10070850
    Abstract: Among other things, methods and apparatus for inserting devices for closing a tissue opening are disclosed. An anchoring or sealing member has one or more stems and/or filaments that are offset from the center of the member, so that lateral adjustments or movements of the anchoring or sealing member do not uncover the opening, cause the anchoring or sealing member to stick through or pull through the opening. Embodiments including a valve adapted to accommodate a guide wire for addressing emergencies are also disclosed.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: September 11, 2018
    Assignee: Cook Medical Technologies LLC
    Inventors: Cleon Stanley, Ram H. Paul, Jr., Dennis Griffin
  • Patent number: 10065029
    Abstract: A dilator may include a leading portion that includes a leading end coupled to a leading stem. The dilator may further include a trailing portion that includes a trailing end coupled to a trailing shaft. The dilator may also include a segmented body disposed between the leading end and the trailing end. The segmented body may include a plurality of segments disposed circumferentially around the leading stem. The leading stem may extend through a passageway of the segmented body, an opening of the trailing end and a channel of the trailing shaft. The leading stem and the trailing shaft may be configured to move longitudinally relative to one another to radially outwardly expand the segmented body.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: September 4, 2018
    Assignee: Cook Medical Technologies LLC
    Inventors: Tyler J Bunch, Ram H Paul, Jr., Gary L Neff