Patents by Inventor Tai D. Tieu
Tai D. Tieu 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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Publication number: 20250049593Abstract: In one embodiment according to the present invention, a stent is described having a generally cylindrical body formed from a single woven nitinol wire. The distal and proximal ends of the stent include a plurality of loops, some of which include marker members used for visualizing the position of the stent. In another embodiment, the previously described stent includes an inner flow diverting layer.Type: ApplicationFiled: October 30, 2024Publication date: February 13, 2025Applicant: Terumo CorporationInventors: Shirley Vong, Priscilla Tsai, Cang Lam, Ross Soltanian, Greg Bak-Boychuk, Tai D. Tieu, Ponaka Pung, Arnold Tuason, Heather Griffith
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Patent number: 12167975Abstract: In one embodiment according to the present invention, a stent is described having a generally cylindrical body formed from a single woven nitinol wire. The distal and proximal ends of the stent include a plurality of loops, some of which include marker members used for visualizing the position of the stent. In another embodiment, the previously described stent includes an inner flow diverting layer.Type: GrantFiled: December 21, 2022Date of Patent: December 17, 2024Assignee: Terumo CorporationInventors: Shirley Vong, Priscilla Tsai, Cang Lam, Ross Soltanian, Greg Bak-Boychuk, Tai D. Tieu, Ponaka Pung, Arnold Tuason, Heather Griffith
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Publication number: 20240341982Abstract: In one embodiment according to the present invention, a stent is described having a generally cylindrical body formed from a single woven nitinol wire. The distal and proximal ends of the stent include a plurality of loops, some of which include marker members used for visualizing the position of the stent. In another embodiment, the previously described stent includes an inner flow diverting layer.Type: ApplicationFiled: April 12, 2024Publication date: October 17, 2024Applicant: Terumo CorporationInventors: Tai D. Tieu, Gregory M. Cruise, Heather Griffith, Helen Nguyen, Minh Nguyen, Ponaka Pung, Shirley Vong
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Publication number: 20240173155Abstract: Implant engagement mechanisms are disclosed for maintaining engagement with a stent until it has been fully deployed and expanded from a catheter or sheath. The apparatus, method and system involving these engagement mechanisms allow a physician to withdraw or retract a sheath prior to full deployment, thereby allowing for redeployment of the stent at a more desirable position.Type: ApplicationFiled: February 8, 2024Publication date: May 30, 2024Applicant: MicroVention, Inc.Inventors: Ponaka Pung, Tai D. Tieu, Ross Soltanian, Helen Nguyen, Oanh Nguyen, Britney Ngo
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Patent number: 11980554Abstract: In one embodiment according to the present invention, a stent is described having a generally cylindrical body formed from a single woven nitinol wire. The distal and proximal ends of the stent include a plurality of loops, some of which include marker members used for visualizing the position of the stent. In another embodiment, the previously described stent includes an inner flow diverting layer.Type: GrantFiled: July 19, 2021Date of Patent: May 14, 2024Assignee: Terumo CorporationInventors: Tai D. Tieu, Gregory M. Cruise, Heather Griffith, Helen Nguyen, Minh Nguyen, Ponaka Pung, Shirley Vong
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Publication number: 20240108352Abstract: An implant delivery system may have a pusher. The pusher may have an elongated shape. A distal end of the pusher may be configured to connect to an implant. The implant delivery system may have a tether connected to the pusher and to the implant. The implant delivery system may have a heating element mounted over the tether biased to contract a first surface of the heating element towards a second surface of the pusher. The implant delivery system may have an expander disposed between the first surface of the heating element and the second surface of the pusher. The expander may be configured to melt, allowing the first surface to contact the second surface, upon activation of the heating element.Type: ApplicationFiled: December 13, 2023Publication date: April 4, 2024Applicant: MicroVention, Inc.Inventors: Tai D. Tieu, Hideo Morita, Helen Nguyen
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Patent number: 11931277Abstract: Implant engagement mechanisms are disclosed for maintaining engagement with a stent until it has been fully deployed and expanded from a catheter or sheath. The apparatus, method and system involving these engagement mechanisms allow a physician to withdraw or retract a sheath prior to full deployment, thereby allowing for redeployment of the stent at a more desirable position.Type: GrantFiled: April 2, 2021Date of Patent: March 19, 2024Assignee: MicroVention, Inc.Inventors: Ponaka Pung, Tai D. Tieu, Ross Soltanian, Helen Nguyen, Oanh Nguyen, Britney Ngo
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Patent number: 11857196Abstract: A system and method of delivering and detaching an implant within a body of a patient is described. A tether connects an implant with a delivery device. The delivery device includes a heater coil through which the tether passes. The inner diameter of the heater coil is about the same size or slightly larger than the outer diameter of the tether, allowing the tether to more efficiently break the tether during delivery.Type: GrantFiled: February 16, 2021Date of Patent: January 2, 2024Assignee: MicroVention, Inc.Inventors: Tai D. Tieu, Hideo Morita, Helen Nguyen
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Patent number: 11801058Abstract: The present specification discloses improved liquid embolic compositions, methods of making such liquid embolic compositions, and methods and uses for such liquid embolic compositions.Type: GrantFiled: March 4, 2021Date of Patent: October 31, 2023Assignee: AccuMedical Beijing Ltd.Inventors: Tai D. Tieu, Hideo Morita
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Publication number: 20230310185Abstract: A stent with varying porosity is described. The stent can be comprised of multiple stents attached together. A braided stent may have selected regions of increased thickness. The stent may be comprised of wires that are welded together at their ends in order to minimize vessel trauma. The stent may comprise a helically wound radiopaque wire wound through the stent.Type: ApplicationFiled: June 5, 2023Publication date: October 5, 2023Applicant: MicroVention, Inc.Inventors: Ponaka Pung, Helen Nguyen, Tai D. Tieu
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Patent number: 11696843Abstract: A stent with varying porosity is described. The stent can be comprised of multiple stents attached together. A braided stent may have selected regions of increased thickness. The stent may be comprised of wires that are welded together at their ends in order to minimize vessel trauma. The stent may comprise a helically wound radiopaque wire wound through the stent.Type: GrantFiled: September 15, 2020Date of Patent: July 11, 2023Assignee: MicroVention, Inc.Inventors: Ponaka Pung, Helen Nguyen, Tai D. Tieu
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Publication number: 20230132550Abstract: In one embodiment according to the present invention, a stent is described having a generally cylindrical body formed from a single woven nitinol wire. The distal and proximal ends of the stent include a plurality of loops, some of which include marker members used for visualizing the position of the stent. In another embodiment, the previously described stent includes an inner flow diverting layer.Type: ApplicationFiled: December 21, 2022Publication date: May 4, 2023Applicant: Terumo CorporationInventors: Shirley Vong, Priscilla Tsai, Cang Lam, Ross Soltanian, Greg Bak-Boychuk, Tai D. Tieu, Ponaka Pung, Arnold Tuason, Heather Griffith
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Patent number: 11564819Abstract: In one embodiment according to the present invention, a stent is described having a generally cylindrical body formed from a single woven nitinol wire. The distal and proximal ends of the stent include a plurality of loops, some of which include marker members used for visualizing the position of the stent. In another embodiment, the previously described stent includes an inner flow diverting layer.Type: GrantFiled: August 7, 2020Date of Patent: January 31, 2023Assignee: Terumo CorporationInventors: Shirley Vong, Priscilla Tsai, Cang Lam, Ross Soltanian, Greg Bak-Boychuk, Tai D. Tieu, Ponaka Pung, Arnold Tuason, Heather Griffith
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Publication number: 20220280163Abstract: The present specification discloses improved liquid embolic compositions, methods of making such liquid embolic compositions, and methods and uses for such liquid embolic compositions.Type: ApplicationFiled: March 4, 2021Publication date: September 8, 2022Applicant: AccuMedical Beijing Ltd.Inventors: Tai D. Tieu, Hideo Morita
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Patent number: 11351046Abstract: In one embodiment according to the present invention, a stent is described having a generally cylindrical body formed from a single woven nitinol wire. The distal and proximal ends of the stent include a plurality of loops, some of which include marker members used for visualizing the position of the stent. In another embodiment, the previously described stent includes an inner flow diverting layer.Type: GrantFiled: October 1, 2019Date of Patent: June 7, 2022Assignee: Terumo CorporationInventors: Tai D. Tieu, Gregory M. Cruise, Heather Griffith, Helen Nguyen, Minh Nguyen, Ponaka Pung, Shirley Vong
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Patent number: 11291566Abstract: In one embodiment according to the present invention, a stent is described having a generally cylindrical body formed from a single woven nitinol wire. The distal and proximal ends of the stent include a plurality of loops, some of which include marker members used for visualizing the position of the stent. In another embodiment, the previously described stent includes an inner flow diverting layer.Type: GrantFiled: April 29, 2021Date of Patent: April 5, 2022Assignee: Terumo CorporationInventors: Tai D. Tieu, Gregory M. Cruise, Heather Griffith, Helen Nguyen, Minh Nguyen, Ponaka Pung, Shirley Vong
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Publication number: 20210346181Abstract: In one embodiment according to the present invention, a stent is described having a generally cylindrical body formed from a single woven nitinol wire. The distal and proximal ends of the stent include a plurality of loops, some of which include marker members used for visualizing the position of the stent. In another embodiment, the previously described stent includes an inner flow diverting layer.Type: ApplicationFiled: July 19, 2021Publication date: November 11, 2021Applicant: Terumo CorporationInventors: Tai D. Tieu, Gregory M. Cruise, Heather Griffith, Helen Nguyen, Minh Nguyen, Ponaka Pung, Shirley Vong
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Patent number: 11134954Abstract: A braided embolization apparatus is disclosed. In at least one embodiment, a plurality of individual strands are braided together as an embolic braid having a proximal end and an opposing distal end, the embolic braid forming an elongated primary shape capable of being inserted into a catheter. During use of the apparatus, upon the distal end of the embolic braid subsequently exiting the catheter, the embolic braid is configured for moving into a shape memorized secondary shape capable of filling a target area of a patient's vascular system.Type: GrantFiled: February 1, 2021Date of Patent: October 5, 2021Inventors: Tai D. Tieu, Jonathan D. Perez
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Publication number: 20210244552Abstract: In one embodiment according to the present invention, a stent is described having a generally cylindrical body formed from a single woven nitinol wire. The distal and proximal ends of the stent include a plurality of loops, some of which include marker members used for visualizing the position of the stent. In another embodiment, the previously described stent includes an inner flow diverting layer.Type: ApplicationFiled: April 29, 2021Publication date: August 12, 2021Applicant: Terumo CorporationInventors: Tai D. Tieu, Gregory M. Cruise, Heather Griffith, Helen Nguyen, Minh Nguyen, Ponaka Pung, Shirley Vong
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Publication number: 20210220158Abstract: Implant engagement mechanisms are disclosed for maintaining engagement with a stent until it has been fully deployed and expanded from a catheter or sheath. The apparatus, method and system involving these engagement mechanisms allow a physician to withdraw or retract a sheath prior to full deployment, thereby allowing for redeployment of the stent at a more desirable position.Type: ApplicationFiled: April 2, 2021Publication date: July 22, 2021Applicant: MicroVention, Inc.Inventors: Ponaka Pung, Tai D. Tieu, Ross Soltanian, Helen Nguyen, Oanh Nguyen, Britney Ngo