Patents by Inventor Anh Cam
Anh Cam 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).
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Patent number: 11690741Abstract: Vascular remodeling devices can 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 anchor 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: GrantFiled: September 16, 2020Date of Patent: July 4, 2023Assignee: COVIDIEN LPInventors: Anh Cam, Michael Losordo, Jianlu Ma, Luong Nguyen, Sanjay Shrivastava, John Wainwright, Xiaoling Zhao
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Patent number: 11045204Abstract: 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: GrantFiled: November 1, 2018Date of Patent: June 29, 2021Assignee: COVIDIEN LPInventors: Anh Cam, Michael Louis Losordo, Jianlu Ma, Xiaoling Zhao
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Publication number: 20210000624Abstract: Vascular remodeling devices can 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 anchor 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: ApplicationFiled: September 16, 2020Publication date: January 7, 2021Inventors: Anh Cam, Michael Losordo, Jianlu Ma, Luong Nguyen, Sanjay Shrivastava, John Wainwright, Xiaoling Zhao
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Patent number: 10806611Abstract: Vascular remodeling devices can 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 anchor 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: GrantFiled: April 3, 2017Date of Patent: October 20, 2020Assignee: COVIDIEN LPInventors: Anh Cam, Michael Losordo, Jianlu Ma, Luong Nguyen, Sanjay Shrivastava, John Wainwright, Xiaoling Zhao
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Publication number: 20200000613Abstract: A medical device for blood flow restoration and/or for use as an implantable member m a human vessel includes a self-expanding member, a guidewire, and a connection mechanism. The self-expanding member includes a plurality of cells and filaments having specific ranges of thicknesses, widths, and heights. The self-expanding member can take on a volume-reduced coiled form with overlapped edges, and can generate optimal radial forces against a vessel wall and/or thrombus when deployed and expanded.Type: ApplicationFiled: September 10, 2019Publication date: January 2, 2020Inventors: Sanjay Shrivastava, Anh Cam
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Patent number: 10426644Abstract: A medical device for blood flow restoration and/or for use as an implantable member in a human vessel includes a self-expanding member, a guidewire, and a connection mechanism. The self-expanding member includes a plurality of cells and filaments having specific ranges of thicknesses, widths, and heights. The self-expanding member can take on a volume-reduced coiled form with overlapped edges, and can generate optimal radial forces against a vessel wall and/or thrombus when deployed and expanded.Type: GrantFiled: May 6, 2015Date of Patent: October 1, 2019Assignee: Covidien LPInventors: Sanjay Shrivastava, Anh Cam
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Publication number: 20190069900Abstract: 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: ApplicationFiled: November 1, 2018Publication date: March 7, 2019Inventors: Anh Cam, Michael Louis Losordo, Jianlu Ma, Xiaoling Zhao
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Patent number: 10123804Abstract: 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: GrantFiled: June 24, 2016Date of Patent: November 13, 2018Assignee: COVIDIEN LPInventors: Anh Cam, Michael Losordo, Jianlu Ma, Xiaoling Zhao
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Publication number: 20170231789Abstract: Vascular remodeling devices can 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 anchor 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: ApplicationFiled: April 3, 2017Publication date: August 17, 2017Inventors: Anh Cam, Michael Losordo, Jianlu Ma, Luong Nguyen, Sanjay Shrivastava, John Wainwright, Xiaoling Zhao
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Publication number: 20170156744Abstract: Catheters of the present disclosure include a catheter shaft and an expandable tip, which can retrieve materials slightly larger than an inner diameter of the catheter shaft. The tip may be expandable such that it can easily transform from a first size and shape to a second size and shape to aid in the retrieval of the materials (i.e., the thrombus, embolus, or foreign body). Catheter tips may be expanded by inflation, removal of a constraining member, or an input such as heat, light, or electrical energy.Type: ApplicationFiled: February 2, 2017Publication date: June 8, 2017Inventors: SANJAY SHRIVASTAVA, Wenfeng Lu, Anh Cam
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Patent number: 9610180Abstract: Vascular remodeling devices can 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 anchor 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: GrantFiled: December 22, 2014Date of Patent: April 4, 2017Assignee: Covidien LPInventors: Anh Cam, Michael Losordo, Jianlu Ma, Luong Nguyen, Sanjay Shrivastava, John Wainwright, Xiaoling Zhao
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Patent number: 9597171Abstract: Catheters of the present disclosure include a catheter shaft and an expandable tip, which can retrieve materials slightly larger than an inner diameter of the catheter shaft. The tip may be expandable such that it can easily transform from a first size and shape to a second size and shape to aid in the retrieval of the materials (i.e., the thrombus, embolus, or foreign body). Catheter tips may be expanded by inflation, removal of a constraining member, or an input such as heat, light, or electrical energy.Type: GrantFiled: September 11, 2012Date of Patent: March 21, 2017Assignee: Covidien LPInventors: Sanjay Shrivastava, Anh Cam
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Publication number: 20160302797Abstract: 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: ApplicationFiled: June 24, 2016Publication date: October 20, 2016Inventors: Anh CAM, Michael LOSORDO, Jianlu MA, Xiaoling ZHAO
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Patent number: 9402712Abstract: 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: GrantFiled: February 2, 2015Date of Patent: August 2, 2016Assignee: Covidien LPInventors: Anh Cam, Michael Losordo, Jianlu Ma, Xiaoling Zhao
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Patent number: 9351859Abstract: 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: GrantFiled: December 6, 2011Date of Patent: May 31, 2016Assignee: Covidien LPInventors: Anh Cam, Michael Louis Losordo, Jianlu Ma, Luong Nguyen, Sanjay Shrivastava, John Wainwright, Xiaoling Zhao
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Patent number: 9192388Abstract: 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: GrantFiled: May 17, 2012Date of Patent: November 24, 2015Assignee: Covidien LPInventors: Anh Cam, Michael Louis Losordo, Jianlu Ma, Victoria Schuman, Xiaoling Zhao
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Publication number: 20150297375Abstract: A medical device for blood flow restoration and/or for use as an implantable member in a human vessel includes a self-expanding member, a guidewire, and a connection mechanism. The self-expanding member includes a plurality of cells and filaments having specific ranges of thicknesses, widths, and heights. The self-expanding member can take on a volume-reduced coiled form with overlapped edges, and can generate optimal radial forces against a vessel wall and/or thrombus when deployed and expanded.Type: ApplicationFiled: May 6, 2015Publication date: October 22, 2015Inventors: Sanjay SHRIVASTAVA, Anh CAM
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Publication number: 20150209133Abstract: 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: ApplicationFiled: February 2, 2015Publication date: July 30, 2015Inventors: Anh CAM, Michael LOSORDO, Jianlu MA, Xiaoling ZHAO
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Publication number: 20150164665Abstract: Vascular remodeling devices can 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 anchor 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: ApplicationFiled: December 22, 2014Publication date: June 18, 2015Inventors: Anh CAM, Michael LOSORDO, Jianlu MA, Luong NGUYEN, Sanjay SHRIVASTAVA, John WAINWRIGHT, Xiaoling ZHAO
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Patent number: 9039749Abstract: A medical device for blood flow restoration and/or for use as an implantable member in a human vessel includes a self-expanding member, a guidewire, and a connection mechanism. The self-expanding member includes a plurality of cells and filaments having specific ranges of thicknesses, widths, and heights. The self-expanding member can take on a volume-reduced coiled form with overlapped edges, and can generate optimal radial forces against a vessel wall and/or thrombus when deployed and expanded.Type: GrantFiled: October 1, 2010Date of Patent: May 26, 2015Assignee: Covidien LPInventors: Sanjay Shrivastava, Anh Cam