Patents by Inventor Ni Ding

Ni Ding 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: 20240139372
    Abstract: Systems, methods, and apparatuses for depositing polymer and/or other layers onto surfaces of, for example, implantable medical devices. In some embodiments, the polymer and/or other coating layers are deposited via plasma polymerization deposition. In some embodiments, primer layers are deposited via plasma polymerization deposition. A coating layer can be formed over a primer layer. The deposited layers can be bioresorbable and/or bioabsorbable.
    Type: Application
    Filed: August 16, 2023
    Publication date: May 2, 2024
    Inventors: Ni Ding, Vincent James Gray
  • Patent number: 10278844
    Abstract: Methods are disclosed including thermally processing a scaffold to increase the radial strength of the scaffold when the scaffold is deployed from a crimped state to a deployed state such as a nominal deployment diameter. The thermal processing may further maintain or increase the expansion capability of the scaffold when expanded beyond the nominal diameter.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: May 7, 2019
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: Rommel Lumauig, Stephen D. Pacetti, Ni Ding, Joel Harrington, Xiao Ma, James P. Oberhauser, Jill McCoy, Chad J. Abunassar, Senthil Eswaran, Diem Ta
  • Patent number: 10213949
    Abstract: Methods and systems for controlling the moisture content of biodegradable and bioresorbable polymer resin during extrusion above a lower limit that allows for plasticization of the polymer resin melt and below an upper limit to reduce or prevent molecular weight loss are disclosed. Methods are further disclosed involving plasticization of a polymer resin for feeding into an extruder with carbon dioxide and freon.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: February 26, 2019
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: Bethany Steichen, Stephen Pacetti, Manish Gada, Thierry Glauser, Lothar Kleiner, Yunbing Wang, James Oberhauser, Ni Ding
  • Patent number: 10064982
    Abstract: An amorphous PDLLA stent coating for drug delivery is disclosed.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: September 4, 2018
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Wouter E. Roorda, Ni Ding
  • Patent number: 10010653
    Abstract: Methods of reducing crimping damage to polymer and drug coating on a scaffold are disclosed. The methods include physically aging a coating including a coating polymer and drug mixture on a scaffold in a manner that takes into account the differing kinetics of aging, that is, the different temperature dependence of the aging rate of the polymer and drug.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: July 3, 2018
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: Erika Danielle Anderson-Bolden, Xinmin Xu, Ni Ding, Boyd V. Knott, Marc Culkin
  • Patent number: 9993583
    Abstract: Method are disclosed for local and systemic administration HDL, recombinant HDL or HDLm for the prevention, treatment, or amelioration of a vascular disorder, disease or occlusion such as restenosis or vulnerable plaque.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: June 12, 2018
    Assignee: ADVANCED CARDIOVASCULAR SYSTEMS, INC.
    Inventor: Ni Ding
  • Patent number: 9901663
    Abstract: A composition for loading into a structural element of a stent, where the structural element is defined by a lumen and at least one opening to access the lumen. The composition may comprise a therapeutic agent, and a chelator, a precipitation agent, or a combination thereof. Medical devices, such as stents, with a structural element defined by a lumen and at least one opening to access the lumen, filled with the compositions are also described.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: February 27, 2018
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Stephen D. Pacetti, Ni Ding
  • Publication number: 20180008438
    Abstract: Methods are disclosed including thermally processing a scaffold to increase the radial strength of the scaffold when the scaffold is deployed from a crimped state to a deployed state such as a nominal deployment diameter. The thermal processing may further maintain or increase the expansion capability of the scaffold when expanded beyond the nominal diameter.
    Type: Application
    Filed: August 28, 2017
    Publication date: January 11, 2018
    Inventors: Rommel Lumauig, Stephen D. Pacetti, Ni Ding, Joel Harrington, Xiao Ma, James P. Oberhauser, Jill McCoy, Chad J. Abunassar, Senthil Eswaran, Diem Ta
  • Patent number: 9795497
    Abstract: Methods are disclosed including thermally processing a scaffold to increase the radial strength of the scaffold when the scaffold is deployed from a crimped state to a deployed state such as a nominal deployment diameter. The thermal processing may further maintain or increase the expansion capability of the scaffold when expanded beyond the nominal diameter.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: October 24, 2017
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Rommel Lumauig, Stephen D. Pacetti, Ni Ding, Joel Harrington, Xiao Ma, James P. Oberhauser, Jill McCoy, Chad J. Abunassar, Senthil Eswaran, Diem Ta
  • Patent number: 9757258
    Abstract: Methods are disclosed including thermally processing a scaffold to increase the radial strength of the scaffold when the scaffold is deployed from a crimped state to a deployed state such as a nominal deployment diameter. The thermal processing may further maintain or increase the expansion capability of the scaffold when expanded beyond the nominal diameter.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: September 12, 2017
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Rommel Lumauig, Stephen D. Pacetti, Ni Ding, Joel Harrington, Xiao Ma, James P. Oberhauser, Jill McCoy, Chad J. Abunassar, Senthil Eswaran, Diem Ta
  • Publication number: 20170224880
    Abstract: Methods of reducing crimping damage to polymer and drug coating on a scaffold are disclosed. The methods include physically aging a coating including a coating polymer and drug mixture on a scaffold in a manner that takes into account the differing kinetics of aging, that is, the different temperature dependence of the aging rate of the polymer and drug.
    Type: Application
    Filed: February 5, 2016
    Publication date: August 10, 2017
    Inventors: Erika Danielle Anderson-Bolden, Xinmin Xu, Ni Ding, Boyd V. Knott, Marc Culkin
  • Patent number: 9724452
    Abstract: Disclosed herein are drug delivery medical devices. A polymer coating for a medical device is provided which comprises a minimum amount of a drug bonded to the polymer in the coating.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: August 8, 2017
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: Ni Ding, Stephen Pacetti, Marika Kamberi, Cameron Kerrigan
  • Patent number: 9675737
    Abstract: A method of providing an antioxidant to a medical device and a kit are described.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: June 13, 2017
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventor: Ni Ding
  • Patent number: 9675478
    Abstract: Methods of making polymeric devices, such as stents, using solvent based processes. More particularly, methods of making bioabsorbable stents.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: June 13, 2017
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Stephen D. Pacetti, Ni Ding
  • Patent number: 9669137
    Abstract: It is provided herein modified polylactide (PLA) polymers comprising biocompatibile functional group(s) on the polymers and methods of making and using the modified PLA polymers.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: June 6, 2017
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Stephen Pacetti, Fuh-Wei Tang, Xiao Ma, Ni Ding, Derek Mortisen
  • Patent number: 9655751
    Abstract: Methods of incorporating an antioxidant into a medical device including a polymer are described, and methods of packaging medical devices.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: May 23, 2017
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventor: Ni Ding
  • Publication number: 20170113424
    Abstract: Methods are disclosed for conditioning a polymeric stent after sterilization, and/or after crimping and before packaging, such that the properties of the polymeric stent fall within a narrower range of values. The stent is exposed to a controlled temperature at or above ambient for a period of time after radiation sterilization and/or after crimping and before sterilization. As a result, the polymeric stent properties, particularly radial strength and number-average molecular weight of the polymer of the polymeric stent, fall within a narrower range.
    Type: Application
    Filed: January 3, 2017
    Publication date: April 27, 2017
    Inventors: Yunbing Wang, Xiao Ma, Fuh-Wei Tang, Ni Ding
  • Patent number: 9580558
    Abstract: A polymer of siloxanes as flexibility monomers and strength monomers is provided. It is also provided a polymer blend that contains a polymer formed of siloxane monomers and strength monomers and another biocompatible polymer. The biocompatible polymer or polymer blend described herein and optionally a bioactive agent can form a coating on an implantable device such as a drug-delivery stent. The implantable device can be used for treating or preventing a disorder such as atherosclerosis, thrombosis, restenosis, hemorrhage, vascular dissection or perforation, vascular aneurysm, vulnerable plaque, chronic total occlusion, claudication, anastomotic proliferation for vein and artificial grafts, bile duct obstruction, ureter obstruction, tumor obstruction, or combinations thereof.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: February 28, 2017
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: Ni Ding, Stephen D. Pacetti
  • Patent number: 9566723
    Abstract: Methods are disclosed for conditioning a polymeric stent after sterilization, and/or after crimping and before packaging, such that the properties of the polymeric stent fall within a narrower range of values. The stent is exposed to a controlled temperature at or above ambient for a period of time after radiation sterilization and/or after crimping and before sterilization. As a result, the polymeric stent properties, particularly radial strength and number-average molecular weight of the polymer of the polymeric stent, fall within a narrower range.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: February 14, 2017
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Yunbing Wang, Xiao Ma, Fuh-Wei Tang, Ni Ding
  • Patent number: 9468706
    Abstract: A polymer comprising phospholipid moieties and a biocompatible polymer backbone, a composition comprising the polymer and optionally a bioactive agent, an implantable devices such as a drug eluting stent comprising thereon a coating comprising the polymer and optionally a bioactive agent, and a method of using the device for the treatment of a disorder in a human being are provided.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: October 18, 2016
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Thierry Glauser, Stephen Dirk Pacetti, Syed Faiyaz Ahmed Hossainy, Ni Ding