Patents by Inventor Stephen Richard Ash

Stephen Richard Ash 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: 11998672
    Abstract: Methods and design for a Slotted T-shaped PD Catheter are disclosed. The present invention includes a unique port design for peritoneal dialysis catheters that allows high outflow and inflow rates, with a minimum fluid velocity through the fluid entry ports. Features of this device include T-shaped catheter with subcutaneous tubing joining to an intraperitoneal portion that is essentially at right angles to the intraperitoneal tubing and slit shaped flow ports as opposed to round shaped flow ports.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: June 4, 2024
    Inventor: Stephen Richard Ash
  • Publication number: 20240024540
    Abstract: In an embodiment, there is provided a catheter extender-lengthener comprising end connectors and tubing that comprises a polymer and a substance such as an antibiotic that is safe for exposure to bodily fluids. The catheter extender-lengthener is suitable to connect to a catheter extension set. Antibiotic can be eluted to fluid on both sides of a clamp and can diffuse toward the patient's body. Similar tubing can be used in a catheter extension set and optionally in a cap. The catheter extender-lengthener can be added on to existing catheter assemblies. Drugs can be combined at high concentration with polymer, and the device can elute effective amounts of minocycline and rifampin for more than a month. Use of the devices can provide adjustable antibiotic or dose and can be adjusted in response to a patient's condition. This can lessen the possibility of Catheter Related Blood Stream Infection.
    Type: Application
    Filed: May 17, 2023
    Publication date: January 25, 2024
    Inventors: Stephen Richard Ash, Mohamed Emam Labib, Lucas Lawrence Franz
  • Patent number: 11077239
    Abstract: Described herein are devices and methods for vascular access via the tributaries. A single lumen catheter, with a bidirectional valve at the tip is disclosed. Flow is out the longitudinal tip of the catheter and not the sides. The two-way valve will act passively but has low opening and closing pressures. A method utilizing endo-to-side port placement of said catheter in vasculature is disclosed. Anastomosis methods are described using said catheter.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: August 3, 2021
    Inventor: Stephen Richard Ash
  • Patent number: 10668098
    Abstract: Oral sorbent compositions that bind small and charged toxins and methods of use.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: June 2, 2020
    Assignee: HEMOCLEANSE TECHNOLOGY LLC
    Inventors: Stephen Richard Ash, David John Carr
  • Publication number: 20190231961
    Abstract: Methods and design for a Slotted T-shaped PD Catheter are disclosed. The present invention includes a unique port design for peritoneal dialysis catheters that allows high outflow and inflow rates, with a minimum fluid velocity through the fluid entry ports. Features of this device include T-shaped catheter with subcutaneous tubing joining to an intraperitoneal portion that is essentially at right angles to the intraperitoneal tubing and slit shaped flow ports as opposed to round shaped flow ports.
    Type: Application
    Filed: December 3, 2018
    Publication date: August 1, 2019
    Inventor: Stephen Richard Ash
  • Publication number: 20190008894
    Abstract: Oral sorbent compositions that bind small and charged toxins and methods of use.
    Type: Application
    Filed: June 27, 2018
    Publication date: January 10, 2019
    Inventors: Stephen Richard Ash, David John Carr
  • Publication number: 20180264188
    Abstract: Described herein are devices and methods for vascular access via the tributaries. A single lumen catheter, with a bidirectional valve at the tip is disclosed. Flow is out the longitudinal tip of the catheter and not the sides. The two-way valve will act passively but has low opening and closing pressures. A method utilizing endo-to-side port placement of said catheter in vasculature is disclosed. Anastomosis methods are described using said catheter.
    Type: Application
    Filed: March 9, 2018
    Publication date: September 20, 2018
    Inventor: Stephen Richard Ash
  • Patent number: 9003688
    Abstract: Devices for automatic fishing line release during a cast using the acceleration and deceleration of the rod to automatically release the fishing line. In one embodiment, the device is in an under-the-rod position. In another embodiment, the devices is in an over-the-rod position. In other embodiments, the over or under the rod function is determined by manufacturer or user adjustments or changes.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: April 14, 2015
    Inventors: Stephen Richard Ash, Thomas A. Sullivan
  • Publication number: 20140109461
    Abstract: Devices for automatic fishing line release during a cast using the acceleration and deceleration of the rod to automatically release the fishing line. In one embodiment, the device is in an under-the-rod position. In another embodiment, the devices is in an over-the-rod position. In other embodiments, the over or under the rod function is determined by manufacturer or user adjustments or changes.
    Type: Application
    Filed: October 22, 2013
    Publication date: April 24, 2014
    Inventors: Stephen Richard Ash, Thomas A. Sullivan