Patents by Inventor Yung-Ming Chen

Yung-Ming Chen 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).

  • Method of drying bioabsorbable coating over stents
    Patent number: 9375876
    Abstract: Various embodiments of methods for coating stents are described herein. Applying a composition including polymer component and solvent to a stent substrate followed by exposing the polymer component to a temperature equal to or greater than a Tg of the polymer component is disclosed. Repeating the applying and exposing one or more times to form a coating with the result that the solvent content of the coating after the final exposing step is at a level suitable for a finished stent is further disclosed.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: June 28, 2016
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Yung-Ming Chen, Jason Van Sciver, Syed F. A. Hossainy, Stephen Pacetti
  • COATINGS FORMED FROM STIMULUS-SENSITIVE MATERIAL
    Publication number: 20160158420
    Abstract: A coating comprising a stimulus-responsive material and a bioactive agent for controlled release of the bioactive agent and methods of making and using the same are disclosed.
    Type: Application
    Filed: February 17, 2016
    Publication date: June 9, 2016
    Inventors: Yung-Ming CHEN, Yiwen TANG, Stephen D. PACETTI, Lothar KLEINER
  • METHOD OF DRYING BIOABSORBABLE COATING OVER STENTS
    Publication number: 20160052200
    Abstract: Various embodiments of methods for coating stents are described herein. Applying a composition including polymer component and solvent to a stent substrate followed by exposing the polymer component to a temperature equal to or greater than a Tg of the polymer component is disclosed. Repeating the applying and exposing one or more times to form a coating with the result that the solvent content of the coating after the final exposing step is at a level suitable for a finished stent is further disclosed.
    Type: Application
    Filed: October 30, 2015
    Publication date: February 25, 2016
    Inventors: Yung-Ming Chen, Jason Van Sciver, Syed F.A. Hossainy, Stephen Pacetti
  • Method of drying bioabsorbable coating over stents
    Patent number: 9204981
    Abstract: Various embodiments of methods for coating stents are described herein. Applying a composition including polymer component and solvent to a stent substrate followed by exposing the polymer component to a temperature equal to or greater than a Tg of the polymer component is disclosed. Repeating the applying and exposing one or more times to form a coating with the result that the solvent content of the coating after the final exposing step is at a level suitable for a finished stent is further disclosed.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: December 8, 2015
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Yung-Ming Chen, Jason Van Sciver, Syed F. A. Hossainy, Stephen Pacetti
  • METHOD OF DRYING BIOABSORBABLE COATING OVER STENTS
    Publication number: 20150196404
    Abstract: Various embodiments of methods for coating stents are described herein. Applying a composition including polymer component and solvent to a stent substrate followed by exposing the polymer component to a temperature equal to or greater than a Tg of the polymer component is disclosed. Repeating the applying and exposing one or more times to form a coating with the result that the solvent content of the coating after the final exposing step is at a level suitable for a finished stent is further disclosed.
    Type: Application
    Filed: March 16, 2015
    Publication date: July 16, 2015
    Inventors: Yung-Ming Chen, Jason Van Sciver, Syed F.A. Hossainy, Stephen D. Pacetti
  • Method of drying bioabsorbable coating over stents
    Patent number: 8980364
    Abstract: Various embodiments of methods for coating stents are described herein. Applying a composition including polymer component and solvent to a stent substrate followed by exposing the polymer component to a temperature equal to or greater than a Tg of the polymer component is disclosed. Repeating the applying and exposing one or more times to form a coating with the result that the solvent content of the coating after the final exposing step is at a level suitable for a finished stent is further disclosed.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: March 17, 2015
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Yung-Ming Chen, Jason Van Sciver, Syed F. A. Hossainy, Stephen D. Pacetti
  • SEVERABLE SUPPORT FOR A STENT
    Publication number: 20150018936
    Abstract: A stent with at least one severable supporting device and methods of coating using the same are disclosed. The severable supporting device can be an end tube or a tab attached to some portion of the stent by at least one “gate” or attachment. The end tube or tab may be part of the design of the stent when it is originally manufactured, or it may be attached to the stent in a secondary process by a biocompatible glue or solder. The end tube or tab can be used to support a stent during a coating process eliminating the need for a mandrel which would otherwise contact the stent during the coating process.
    Type: Application
    Filed: September 26, 2014
    Publication date: January 15, 2015
    Inventors: Yung-Ming Chen, Eric Aldenbrook
  • METHOD FOR FORMING A COATING ON A STENT
    Publication number: 20140377448
    Abstract: Various embodiments of methods and devices for coating stents are described herein.
    Type: Application
    Filed: September 5, 2014
    Publication date: December 25, 2014
    Inventors: Yung-Ming Chen, Jason Van Sciver, Jeff McCabe, Antonio Garcia
  • REMOVING A SOLVENT FROM A DRUG-ELUTING COATING
    Publication number: 20140338214
    Abstract: A coating device for coating a medical device with a drug-eluting material uses an in-process drying station between coats to improve a drug release profile. The drying station includes a heat nozzle configured for applying a uniform drying gas.
    Type: Application
    Filed: June 11, 2014
    Publication date: November 20, 2014
    Inventors: Charles R. Bobson, Kurt Scheinpflug, Yung-Ming Chen, Jeff H. Smith
  • METHODS AND DEVICES FOR COATING STENTS
    Publication number: 20140299054
    Abstract: Various embodiments of methods and devices for coating stents are described herein.
    Type: Application
    Filed: April 7, 2014
    Publication date: October 9, 2014
    Inventors: David Rego, Kurt Kilchenmann, Sang joon Park, Mark Haight, Anthony S. Andreacchi, Yung-Ming Chen, Arnoldo M. Currlin, Antonio Garcia, Jason Van Sciver, Thomas David Esbeck, Bryan D. Glenn, Patrick A. Tuohy, Richard Baillargeon, Edward P. Garcia, Steven E. Lehner, Ian Coulson
  • Method for coating and drying multiple stents
    Patent number: 8852670
    Abstract: A coating and drying apparatus for the application of a coating substance to a stent and drying the stent is provided.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: October 7, 2014
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Arkady Kokish, Yung-Ming Chen, Jason Van Sciver, Roberto Listek
  • Severable support for a stent
    Patent number: 8852671
    Abstract: A stent with at least one severable supporting device and methods of coating using the same are disclosed. The severable supporting device can be an end tube or a tab attached to some portion of the stent by at least one “gate” or attachment. The end tube or tab may be part of the design of the stent when it is originally manufactured, or it may be attached to the stent in a secondary process by a biocompatible glue or solder. The end tube or tab can be used to support a stent during a coating process eliminating the need for a mandrel which would otherwise contact the stent during the coating process.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: October 7, 2014
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Yung-Ming Chen, Eric Aldenbrook
  • Method for forming a coating on a stent
    Patent number: 8846131
    Abstract: A stent has first and second members. The stent is supported by a mandrel in a first position such that the mandrel is in contact with the first member and the second member is spaced from the mandrel. A method for coating the stent includes spraying or drying the stent, placing the stent in a second position such that the first member is spaced from the mandrel and the second member is placed in contact with the mandrel, and spraying or drying the stent while the stent is supported by the mandrel in the second position.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: September 30, 2014
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Yung-Ming Chen, Jason Van Sciver, Jeff McCabe, Antonio Garcia
  • Poly(ester amides) for the control of agent-release from polymeric compositions
    Patent number: 8815274
    Abstract: The present invention generally encompasses a medical article, such as a medical device or coating comprising an agent or combination of agents, wherein the agent is distributed throughout a polymeric matrix. The polymeric matrix comprises an agent and a poly(ester amide) having a design that was preselected to provide a predetermined release rate of the combination of agents from the medical article.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: August 26, 2014
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Jessica R. DesNoyer, Stephen D. Pacetti, Lothar W. Kleiner, Syed F. A. Hossainy, Yung-Ming Chen, Gordon Stewart, Gina Zhang
  • Removing a solvent from a drug-eluting coating
    Patent number: 8795761
    Abstract: A coating device for coating a medical device with a drug-eluting material uses an in-process drying station between coats to improve a drug release profile. The drying station includes a heat nozzle configured for applying a uniform drying gas.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: August 5, 2014
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Charles R. Bobson, Kurt Scheinpflug, Yung-Ming Chen, Jeff H. Smith
  • METHOD OF DRYING BIOABSORBABLE COATING OVER STENTS
    Publication number: 20140154400
    Abstract: Various embodiments of methods for coating stents are described herein. Applying a composition including polymer component and solvent to a stent substrate followed by exposing the polymer component to a temperature equal to or greater than a Tg of the polymer component is disclosed. Repeating the applying and exposing one or more times to form a coating with the result that the solvent content of the coating after the final exposing step is at a level suitable for a finished stent is further disclosed.
    Type: Application
    Filed: January 14, 2014
    Publication date: June 5, 2014
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Yung-Ming Chen, Jason Van Sciver, Syed F.A. Hossainy, Stephen D. Pacetti
  • Device for Drying Coated Stents
    Publication number: 20140150282
    Abstract: Various embodiments of methods and devices for drying coated stents in an oven are described herein.
    Type: Application
    Filed: February 11, 2014
    Publication date: June 5, 2014
    Applicants: ATS AUTOMATION TOOLING SYSTEMS INC., Abbott Cardiovascular Systems Inc.
    Inventors: Sidney Watterodt, Sang joon Park, David Rego, Anthony S. Andreacchi, Yung-Ming Chen, Arnoldo M. Currlin, Antonio Garcia, Jason Van Sciver, Bryan D. Glenn, Matthew J. Gillick, John E. Papp
  • LASER SYSTEM AND PROCESSING CONDITIONS FOR MANUFACTURING BIOABSORBABLE STENTS
    Publication number: 20140155985
    Abstract: The present invention involves laser machining polymer substrates to form a stent with laser parameters that minimize damage to the substrate in a surface region adjacent to the machined edge surface. The wavelength and pulse width are selected for this unique application and they can be controlled to minimize the surface modifications (such as voids, cracks which are induced by the laser-material interaction) which contribute to the variation in mechanical properties with distance from the edge surface, bulk mechanical properties, or a combination thereof.
    Type: Application
    Filed: February 3, 2014
    Publication date: June 5, 2014
    Inventors: Joel Harrington, Ryan Vaughan, Kevin Jow, William Pippey, Yung-Ming Chen
  • Method for coating stents
    Patent number: 8691320
    Abstract: A method for coating a stent can involve a device having a drying zone, a spray zone, and movable member for positioning a stent in the drying zone and another stent in the spray zone. Each stent can be on a support. A force can be applied to the outside surface of a stent to prevent rotation of the stent with respect to the support.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: April 8, 2014
    Assignees: Abbott Cardiovascular Systems Inc., ATS Automation Tooling Systems Inc.
    Inventors: David Rego, Kurt Kilchenmann, Sang joon Park, Mark Haight, Anthony S. Andreacchi, Yung-Ming Chen, Arnoldo M. Currlin, Antonio Garcia, Jason Van Sciver, Thomas David Esbeck, Bryan D. Glenn, Patrick A. Tuohy, Richard Baillargeon, Edward P. Garcia, Steven E. Lehner, Ian Coulson
  • Laser system and processing conditions for manufacturing bioabsorbable stents
    Patent number: 8679394
    Abstract: The present invention involves laser machining polymer substrates to form a stent with laser parameters that minimize damage to the substrate in a surface region adjacent to the machined edge surface. The wavelength and pulse width are selected for this unique application and they can be controlled to minimize the surface modifications (such as voids, cracks which are induced by the laser-material interaction) which contribute to the variation in mechanical properties with distance from the edge surface, bulk mechanical properties, or a combination thereof.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: March 25, 2014
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Joel Harrington, Ryan Vaughan, Kevin Jow, William Pippey, Yung-Ming Chen