Patents by Inventor Xiaoling Zhao

Xiaoling Zhao 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: 8915950
    Abstract: Described herein are vascular remodeling devices that include a proximal section, an intermediate section, and a distal section. During deployment, the proximal section can expand from a compressed delivery state to an expanded state and anchors the device in an afferent vessel of a bifurcation. The distal section expands from the compressed delivery state to an expanded state that may be substantially planar, approximately semi-spherical, umbrella shaped, or reverse umbrella shaped. The distal section is positioned in a bifurcation junction across the neck of an aneurysm or within an aneurysm. The intermediate section allows perfusion to efferent vessels. Before or after the device is in position, embolic material may be used to treat the aneurysm. The distal section can act as a scaffolding to prevent herniation of the embolic material. The device can be used for clot retrieval with integral distal embolic protection.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: December 23, 2014
    Assignee: Covidien LP
    Inventors: Anh Cam, Michael Louis Losordo, Jianlu Ma, Luong Nguyen, Sanjay Shrivastava, John Wainwright, Xiaoling Zhao
  • Publication number: 20140180382
    Abstract: According to one aspect of the present invention, a fatigue resistant stent comprises a flexible tubular structure having an inside diameter, an outside diameter, and a sidewall therebetween and having apertures extending through the sidewall. According to other aspects of the invention, processes for making a fatigue resistant stent are disclosed. According to further aspects of the invention, delivery systems for a fatigue resistant stent and methods of use are provided.
    Type: Application
    Filed: October 11, 2013
    Publication date: June 26, 2014
    Applicant: Covidien LP
    Inventors: Jianlu Ma, Joe Tatalovich, Lixiao Wang, Xiaoling Zhao, Dan Ranum
  • Patent number: 8562668
    Abstract: According to one aspect of the present invention, a fatigue resistant stent comprises a flexible tubular structure having an inside diameter, an outside diameter, and a sidewall therebetween and having apertures extending through the sidewall. According to other aspects of the invention, processes for making a fatigue resistant stent are disclosed. According to further aspects of the invention, delivery systems for a fatigue resistant stent and methods of use are provided.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: October 22, 2013
    Assignee: Covidien LP
    Inventors: Jianlu Ma, Joe Tatalovich, Lixiao Wang, Xiaoling Zhao, Dan Ranum
  • Publication number: 20120296361
    Abstract: A vascular remodeling device and methods for its use are provided. The device can be positionable at a junction of a bifurcation having an aneurysm and that defines afferent and efferent vessels. Ends of the device can be at least partially inserted into the aneurysm or can anchor the device by being at least partially inserted into efferent vessels. The device can act as a scaffolding to inhibit dislodging of objects out of the aneurysm. The device can permit perfusion to the efferent vessels. Embolic material can be inserted in the aneurysm before, during, and/or after positioning the device.
    Type: Application
    Filed: May 17, 2012
    Publication date: November 22, 2012
    Applicant: TYCO HEALTHCARE GROUP LP
    Inventors: Anh CAM, Michael Louis Losordo, Jianlu Ma, Victoria Schuman, Xiaoling Zhao
  • Publication number: 20120296362
    Abstract: A vascular remodeling device is provided that can comprise a proximal section, an intermediate section, and a distal section. During deployment, the proximal section can expand from a compressed delivery state to an expanded state and anchor the device in the afferent vessel of a bifurcation. The distal section can comprise at least one embolization coil that can be positioned within an aneurysm to treat the aneurysm and expand from the compressed delivery state to an expanded state upon deployment. The intermediate section can allow perfusion to efferent vessels. Before, during, and/or after the device is positioned, additional embolic material can be used to treat the aneurysm.
    Type: Application
    Filed: May 17, 2012
    Publication date: November 22, 2012
    Applicant: TYCO HEALTHCARE GROUP LP
    Inventors: Anh CAM, Michael Louis Losordo, Jianlu Ma, Sanjay Shrivastava, Xiaoling Zhao
  • Publication number: 20120290067
    Abstract: Described herein are flexible implantable devices or stents that can conform to the shape of vessels of the neurovasculature. In some embodiments, the devices can direct blood flow within a vessel away from an aneurysm or limit blood flow to the aneurysm. In some embodiments, a vascular remodeling device includes a first section and a protruding section. During deployment, the device expands from a compressed configuration to an expanded configuration. The first section anchors the device in an afferent vessel and/or in an efferent vessel of a bifurcation and the protruding section is positioned in the junction of the bifurcation having an aneurysm and across the neck of the aneurysm or at least partially within the aneurysm.
    Type: Application
    Filed: May 11, 2012
    Publication date: November 15, 2012
    Applicant: TYCO HEALTHCARE GROUP LP
    Inventors: Anh Cam, Michael Louis Losordo, Jianlu Ma, Xiaoling Zhao
  • Publication number: 20120143317
    Abstract: Described herein are vascular remodeling devices that include a proximal section, an intermediate section, and a distal section. During deployment, the proximal section can expand from a compressed delivery state to an expanded state and anchors the device in an afferent vessel of a bifurcation. The distal section expands from the compressed delivery state to an expanded state that may be substantially planar, approximately semi-spherical, umbrella shaped, or reverse umbrella shaped. The distal section is positioned in a bifurcation junction across the neck of an aneurysm or within an aneurysm. The intermediate section allows perfusion to efferent vessels. Before or after the device is in position, embolic material may be used to treat the aneurysm. The distal section can act as a scaffolding to prevent herniation of the embolic material. The device can be used for clot retrieval with integral distal embolic protection.
    Type: Application
    Filed: December 6, 2011
    Publication date: June 7, 2012
    Applicant: TYCO HEALTHCARE GROUP LP
    Inventors: Anh CAM, Michael Louis LOSORDO, Jianlu MA, Luong NGUYEN, Sanjay SHRIVASTAVA, John WAINWRIGHT, Xiaoling ZHAO
  • Publication number: 20120143237
    Abstract: Described herein are vascular remodeling devices that include a proximal section, an intermediate section, and a distal section. During deployment, the proximal section can expand from a compressed delivery state to an expanded state and anchors the device in an afferent vessel of a bifurcation. The distal section expands from the compressed delivery state to an expanded state that may be substantially planar, approximately semi-spherical, umbrella shaped, or reverse umbrella shaped. The distal section is positioned in a bifurcation junction across the neck of an aneurysm or within an aneurysm. The intermediate section allows perfusion to efferent vessels. Before or after the device is in position, embolic material may be used to treat the aneurysm. The distal section can act as a scaffolding to prevent herniation of the embolic material. The device can be used for clot retrieval with integral distal embolic protection.
    Type: Application
    Filed: December 6, 2011
    Publication date: June 7, 2012
    Applicant: TYCO HEALTHCARE GROUP LP
    Inventors: Anh CAM, Michael Louis LOSORDO, Jianlu MA, Luong NGUYEN, Sanjay SHRIVASTAVA, John WAINWRIGHT, Xiaoling ZHAO
  • Publication number: 20070289677
    Abstract: According to one aspect of the present invention, a fatigue resistant stent comprises a flexible tubular structure having an inside diameter, an outside diameter, and a sidewall therebetween and having apertures extending through the sidewall. According to other aspects of the invention, processes for making a fatigue resistant stent are disclosed. According to further aspects of the invention, delivery systems for a fatigue resistant stent and methods of use are provided.
    Type: Application
    Filed: June 18, 2007
    Publication date: December 20, 2007
    Applicant: ev3, Inc.
    Inventors: Jianlu Ma, Joe Tatalovich, Lixiao Wang, Xiaoling Zhao, Dan Ranum