Patents by Inventor Peter Donnellan

Peter Donnellan 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: 20220241112
    Abstract: A dressing device and a method of making the dressing device is disclosed. For example, the method can include forming a polyurethane foam, adhering a moisture vapor-transmissive backing to the polyurethane foam, and cutting the polyurethane foam with the moisture vapor-transmissive backing thereon to form the dressing device. Notably, forming the polyurethane foam can include mixing together a polyurethane prepolymer and an aqueous mixture of chlorhexidine di-gluconate and polyanhydroglucuronic acid or a salt of polyanhydroglucuronic acid in a first reaction vessel until a homogenous mixture is formed; dispensing the homogenous mixture onto a liner; and allowing the homogeneous mixture to expel carbon dioxide. Upon expelling the carbon dioxide, the polyurethane foam is formed with the chlorhexidine di-gluconate and the polyanhydroglucuronic acid or the salt of polyanhydroglucuronic acid homogenously dispersed throughout the polyurethane foam.
    Type: Application
    Filed: March 28, 2022
    Publication date: August 4, 2022
    Inventors: Peter Donnellan, Marie N. Beiliu, Keith Real
  • Publication number: 20200069475
    Abstract: A method of protecting an insertion site permitting passage of a transcutaneous medical device into a patient. The method includes grasping a dressing device, positioning the dressing device over the insertion site, and adhering the dressing device to the patient over the insertion site. The dressing device may include a moisture vapor permeable backing, a polyurethane foam matrix, and an adhesive. The polyurethane foam matrix may be adhered to a first side of the moisture vapor permeable backing, and the adhesive may cover a second side of the moisture vapor permeable backing opposite of the first side. The polyurethane foam matrix can include a polyanhydroglucuronic acid or salt thereof in an amount to achieve a haemostatic effect, and chlorhexidine di-gluconate in an amount of 9% to 16% (w/w) to achieve an antimicrobial effect without adversely affecting wound healing.
    Type: Application
    Filed: July 15, 2019
    Publication date: March 5, 2020
    Inventors: Peter Donnellan, Marie Ni Beiliu, Keith Real
  • Publication number: 20130110025
    Abstract: A wound dressing device for use with a transcutaneous medical device such as a cannula or a catheter comprises a polyurethane matrix which may be covered with a film backing. Chlorhexidine di- gluconate and a polyanhydroglucuronic salt are contained in the polymer matrix. The wound dressing device prevents microbial colonization of the dressing and stops bleeding from the insertion site. The device provides combined haemostatic and antimicrobial effects at the insertion site but without adversely affecting wound healing.
    Type: Application
    Filed: July 4, 2011
    Publication date: May 2, 2013
    Applicant: Hemcon Medical Technologies (IP) Limited
    Inventors: Peter Donnellan, Marie Ni Beiliu, Keith Real
  • Publication number: 20040098790
    Abstract: An adjustable cap having a crown having a bottom edge, said bottom edge having an interior and an exterior; a brim attached to said crown at a portion of said bottom edge; a non-elastic material attached to the interior of said bottom edge, wherein said non-elastic material is coextensive with the brim and/or the wearer's forehead; and an elastic material attached to substantially all of the remaining portion of said bottom edge.
    Type: Application
    Filed: November 25, 2002
    Publication date: May 27, 2004
    Inventor: Peter Donnellan