Patents by Inventor Cang D. Dao

Cang D. Dao 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).

  • Intravascular catheter with composite reinforcement
    Patent number: 7985214
    Abstract: An intravascular catheter that exhibits the combined features of superior flexibility, softness, radiopacity and oval/kink resistance. The catheter includes an elongate shaft having a proximal region, a distal region and a lumen extending therethrough. The proximal region of the shaft includes an inner lubricious polymer layer, a reinforcement layer and an outer layer. The reinforcement layer comprises a braid having one or more metallic members and a plurality of polymer members wherein each polymer member comprises a plurality of monofilaments, preferably formed of LCP. The polymer members of the braid provide improved flexibility and softness in addition to high burst pressure. The metallic member(s) of the braid provide improved radiopacity and oval/kink resistance. The catheter may also include a longitudinal member extending along the reinforcement layer.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: July 26, 2011
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Robert J. Garabedian, John Griego, Earl Bardsley, Dean A. Schaefer, Cang D. Dao, Steven M. Anderson
  • Intravascular catheter with composite reinforcement
    Patent number: 6866660
    Abstract: An intravascular catheter that exhibits the combined features of superior flexibility, softness, radiopacity and oval/kink resistance. The catheter includes an elongate shaft having a proximal region, a distal region and a lumen extending therethrough. The proximal region of the shaft includes an inner lubricious polymer layer, a reinforcement layer and an outer layer. The reinforcement layer comprises a braid having one or more metallic members and a plurality of polymer members wherein each polymer member comprises a plurality of monofilaments, preferably formed of LCP. The polymer members of the braid provide improved flexibility and softness in addition to high burst pressure. The metallic member(s) of the braid provide improved radiopacity and oval/kink resistance. The catheter may also include a longitudinal member extending along the reinforcement layer.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: March 15, 2005
    Assignee: SciMed Life Systems, Inc.
    Inventors: Robert J. Garabedian, John Griego, Earl Bardsley, Dean A. Schaefer, Cang D. Dao, Steven M. Anderson
  • Intravascular catheter with composite reinforcement
    Publication number: 20030097119
    Abstract: An intravascular catheter that exhibits the combined features of superior flexibility, softness, radiopacity and oval/kink resistance. The catheter includes an elongate shaft having a proximal region, a distal region and a lumen extending therethrough. The proximal region of the shaft includes an inner lubricious polymer layer, a reinforcement layer and an outer layer. The reinforcement layer comprises a braid having one or more metallic members and a plurality of polymer members wherein each polymer member comprises a plurality of monofilaments, preferably formed of LCP. The polymer members of the braid provide improved flexibility and softness in addition to high burst pressure. The metallic member(s) of the braid provide improved radiopacity and oval/kink resistance. The catheter may also include a longitudinal member extending along the reinforcement layer.
    Type: Application
    Filed: January 9, 2003
    Publication date: May 22, 2003
    Applicant: SciMed Life Systems, Inc.
    Inventors: Robert J. Garabedian, John Griego, Earl Bardsley, Dean A. Schaefer, Cang D. Dao, Steven M. Anderson
  • Intravascular catheter with composite reinforcement
    Patent number: 6508805
    Abstract: An intravascular catheter that exhibits the combined features of superior flexibility, softness, radiopacity and oval/kink resistance. The catheter includes an elongate shaft having a proximal region, a distal region and a lumen extending therethrough. The proximal region of the shaft includes an inner lubricious polymer layer, a reinforcement layer and an outer layer. The reinforcement layer comprises a braid having one or more metallic members and a plurality of polymer members wherein each polymer member comprises a plurality of monofilaments, preferably formed of LCP. The polymer members of the braid provide improved flexibility and softness in addition to high burst pressure. The metallic member(s) of the braid provide improved radiopacity and oval/kink resistance. The catheter may also include a longitudinal member extending along the reinforcement layer.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: January 21, 2003
    Assignee: SciMed Life Systems, Inc.
    Inventors: Robert J. Garabedian, John Griego, Earl Bardsley, Dean A. Schaefer, Cang D. Dao, Steven M. Anderson
  • Intravascular catheter with composite reinforcement
    Patent number: 6171295
    Abstract: An intravascular catheter that exhibits the combined features of superior flexibility, softness, radiopacity and oval/kink resistance. The catheter includes an elongate shaft having a proximal region, a distal region and a lumen extending therethrough. The proximal region of the shaft includes an inner lubricious polymer layer, a reinforcement layer and an outer layer. The reinforcement layer comprises a braid having one or more metallic members and a plurality of polymer members wherein each polymer member comprises a plurality of monofilaments, preferably formed of LCP. The polymer members of the braid provide improved flexibility and softness in addition to high burst pressure. The metallic member(s) of the braid provide improved radiopacity and oval/kink resistance. The catheter may also include a longitudinal member extending along the reinforcement layer.
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: January 9, 2001
    Assignee: SciMed Life Systems, Inc.
    Inventors: Robert J. Garabedian, John Griego, Earl Bardsley, Dean A. Schaefer, Cang D. Dao, Steven M. Anderson