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公开(公告)号：US10182931B2
公开(公告)日：2019-01-22
申请号：US15269782
申请日：2016-09-19
Applicant: MicroVention, Inc.
Inventor： Ponaka Pung , Tai D. Tieu , Ross Soltanian , Helen Nguyen , Oanh Nguyen , Britney Ngo
Abstract: 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.
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公开(公告)号：US20160100819A1
公开(公告)日：2016-04-14
申请号：US14975224
申请日：2015-12-18
Applicant: MicroVention, Inc.
Inventor： Tai D. Tieu
CPC classification number: A61B8/0841 , A61B17/12022 , A61B17/12109 , A61B17/12113 , A61B17/12122 , A61B17/1214 , A61B17/12154 , A61B2017/00292 , A61B2017/12068 , A61B2034/2053 , A61B2562/0247 , A61B2562/0257 , A61B2562/0271 , A61F2/95 , A61F2/966 , A61F2002/30668 , A61F2002/9505 , A61F2250/0001 , A61M25/0068 , A61M25/0082 , A61M25/0108 , A61M2025/0042 , A61M2025/0681 , A61M2205/3331 , A61M2205/3368 , A61M2205/3375 , A61M2205/3653
Abstract: A system and method for quickly detaching an implant and for locating the detachment zone of a detachable implant. A sensor determines a sudden change in the local environment as the sensor passes from within a microcatheter to being exposed to the vasculature. The sensor may be a temperature sensor, ultrasonic sensor, pressure sensor or the like. If the detachable implant assembly uses a heater coil to detach the implant, the heater coil may be used as a sensor. Additionally, the implant itself may be used as a sensor if a change in electrical resistance is detectable as the implant exits the microcatheter and changes shape.
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公开(公告)号：US20130245745A1
公开(公告)日：2013-09-19
申请号：US13843342
申请日：2013-03-15
Applicant: MICROVENTION, INC.
Inventor： Shirley Vong , Priscilla Tsai , Cang Lam , Ross Soltanian , Greg Bak-Boychuk , Tai D. Tieu , Ponaka Pung , Arnold Tuason , Heather Griffith
CPC classification number: A61F2/852 , A61F2/844 , A61F2/885 , A61F2/90 , A61F2/966 , A61F2002/823 , A61F2002/9522 , A61F2002/9528 , A61F2002/9665 , A61F2210/0014 , A61F2210/0076 , A61F2230/0021 , A61F2230/005 , A61F2230/0058 , A61F2230/0067 , A61F2250/0018 , A61F2250/0023 , A61F2250/0039 , A61F2250/0098 , A61F2310/00131
Abstract: 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.
Abstract translation: 在根据本发明的一个实施例中，描述了一种支架，其具有由单一编织的镍钛诺导线形成的大致圆柱形的主体。 支架的远端和近端包括多个环，其中一些环包括用于可视化支架位置的标记构件。 在另一个实施例中，前述的支架包括内部流动转向层。
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公开(公告)号：US11696843B2
公开(公告)日：2023-07-11
申请号：US17021907
申请日：2020-09-15
Applicant: MicroVention, Inc.
Inventor： Ponaka Pung , Helen Nguyen , Tai D. Tieu
CPC classification number: A61F2/885 , A61F2/90 , A61F2/82 , A61F2/852 , A61F2/86 , A61F2/88 , A61F2/954 , A61F2002/823 , A61F2250/006 , A61F2250/0023 , A61F2250/0036
Abstract: 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.
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公开(公告)号：US11000394B2
公开(公告)日：2021-05-11
申请号：US16244910
申请日：2019-01-10
Applicant: MicroVention, Inc.
Inventor： Ponaka Pung , Tai D. Tieu , Ross Soltanian , Helen Nguyen , Oanh Nguyen , Britney Ngo
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US10806610B2
公开(公告)日：2020-10-20
申请号：US16025942
申请日：2018-07-02
Applicant: MicroVention, Inc.
Inventor： Ponaka Pung , Helen Nguyen , Tai D. Tieu
Abstract: 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.
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公开(公告)号：US20160361180A1
公开(公告)日：2016-12-15
申请号：US15247714
申请日：2016-08-25
Applicant: MicroVention, Inc.
Inventor： Shirley Vong , Priscilla Tsai , Cang Lam , Ross Soltanian , Greg Bak-Boychuk , Tai D. Tieu , Ponaka Pung , Arnold Tuason , Heather Griffith
CPC classification number: A61F2/852 , A61F2/844 , A61F2/885 , A61F2/90 , A61F2/966 , A61F2002/823 , A61F2002/9522 , A61F2002/9528 , A61F2002/9665 , A61F2210/0014 , A61F2210/0076 , A61F2230/0021 , A61F2230/005 , A61F2230/0058 , A61F2230/0067 , A61F2250/0018 , A61F2250/0023 , A61F2250/0039 , A61F2250/0098 , A61F2310/00131
Abstract: 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.
Abstract translation: 在根据本发明的一个实施例中，描述了一种支架，其具有由单一编织的镍钛诺导线形成的大致圆柱形的主体。 支架的远端和近端包括多个环，其中一些环包括用于可视化支架位置的标记构件。 在另一个实施例中，前述的支架包括内部流动转向层。
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公开(公告)号：US20240108352A1
公开(公告)日：2024-04-04
申请号：US18539170
申请日：2023-12-13
Applicant: MicroVention, Inc.
Inventor： Tai D. Tieu , Hideo Morita , Helen Nguyen
CPC classification number: A61B17/12113 , A61B17/12022 , A61B17/12154 , A61B90/39 , A61F2/01 , A61F2/95 , A61B2017/12068 , A61F2/011 , A61F2002/9505 , A61F2002/9511 , A61F2250/0071
Abstract: 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.
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公开(公告)号：US10299755B2
公开(公告)日：2019-05-28
申请号：US14975224
申请日：2015-12-18
Applicant: MicroVention, Inc.
Inventor： Tai D. Tieu
IPC: A61B5/00 , A61F2/966 , A61B8/08 , A61B17/12 , A61F2/95 , A61M25/00 , A61M25/01 , A61F2/30 , A61M25/06 , A61B17/00 , A61B34/20
Abstract: A system and method for quickly detaching an implant and for locating the detachment zone of a detachable implant. A sensor determines a sudden change in the local environment as the sensor passes from within a microcatheter to being exposed to the vasculature. The sensor may be a temperature sensor, ultrasonic sensor, pressure sensor or the like. If the detachable implant assembly uses a heater coil to detach the implant, the heater coil may be used as a sensor. Additionally, the implant itself may be used as a sensor if a change in electrical resistance is detectable as the implant exits the microcatheter and changes shape.
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公开(公告)号：US20190142617A1
公开(公告)日：2019-05-16
申请号：US16244910
申请日：2019-01-10
Applicant: MicroVention, Inc.
Inventor： Ponaka Pung , Tai D. Tieu , Ross Soltanian , Helen Nguyen , Oanh Nguyen , Britney Ngo
Abstract: 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.
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