Patents Assigned to MicroVention, Inc.
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Patent number: 11723667Abstract: Devices and methods for treatment of a patient's vasculature may include a resilient self-expanding permeable implant having a radially constrained elongated state configured for delivery within a catheter lumen and an expanded state with a longitudinally shortened configuration, and a plurality of elongate filaments which are woven together. Each of the plurality of elongate filaments may have a diameter between about 0.0005 and about 0.005 inches. The implant includes at least some filaments consisting of nitinol and at least some composite filaments that are drawn filled tube wires comprising an external nitinol tube and a highly radiopaque material concentrically disposed within the external tube. The implant has at least about 40% composite filaments relative to a total number of filaments, and wherein a total number of filaments is about 10 to about 300.Type: GrantFiled: September 22, 2020Date of Patent: August 15, 2023Assignee: MICROVENTION, INC.Inventors: Todd Hewitt, Brian E. Merritt, William R. Patterson
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Patent number: 11723784Abstract: A stent, a stent delivery system, and a method of delivering a stent are described that allow the porosity of the stent to be changed dynamically during a delivery procedure. Unlike prior stents and procedures that are configured to deploy with a predetermined porosity, the physician can create a region of high stent porosity over certain vessel features, a low stent porosity over other vessel features, and can create these porosity changes with at least one stent or stent layer.Type: GrantFiled: November 12, 2020Date of Patent: August 15, 2023Assignee: MicroVention, Inc.Inventors: Hussain S. Ringwala, Ronak Dholakia, Steve Trom
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Patent number: 11717315Abstract: A matter conveyance system is located within a catheter and transports thrombus from a proximal portion of the catheter to a distal end of the catheter. In one example, the matter conveyance system is a screw or helix that rotates to cause movement of the thrombus.Type: GrantFiled: February 25, 2020Date of Patent: August 8, 2023Assignee: MicroVention, Inc.Inventor: Heath Bowman
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Patent number: 11712355Abstract: A medical implant delivery system is described. The system can be used to deliver a variety of implants including stents and/or stent grafts. The delivery system retains the implant during delivery and detaches the implant at a target location.Type: GrantFiled: March 4, 2020Date of Patent: August 1, 2023Assignee: MicroVention, Inc.Inventors: Ivan Sepetka, Cathy Lei
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Patent number: 11707281Abstract: The present invention provides for implant device delivery apparatuses and related methods of use. The delivery systems of the present invention incorporate a stretch resistant tube that advantageously makes the implant device, such as an embolic coil, stretch resistant while a delivery system is being used to position the implant device at a desired target site.Type: GrantFiled: August 6, 2019Date of Patent: July 25, 2023Assignee: MicroVention, Inc.Inventors: Matthew Fitz, Joseph Gulachenski
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Patent number: 11701490Abstract: Described herein is a liquid embolic delivery device designed to minimize excess embolic solvent buildup therein. The liquid embolic delivery device generally comprises an outer catheter, an inner catheter that is longitudinally moveable within the outer catheter. The inner catheter is used for an initial embolic solvent flush and to deliver liquid embolic, while the outer catheter is used to remove excess solvent.Type: GrantFiled: November 14, 2019Date of Patent: July 18, 2023Assignee: MicroVention, Inc.Inventor: Frida San
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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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Patent number: 11690740Abstract: A vascular prosthesis (e.g., stent), and packaging and delivery system to selectively deliver a vascular prosthesis are described. In some embodiments, the vascular prosthesis utilizes a low porosity and high porosity section, and the packaging and delivery system allows the prosthesis to be delivered such that the position of the low porosity and high porosity sections of the prosthesis can vary.Type: GrantFiled: March 13, 2020Date of Patent: July 4, 2023Assignee: MicroVention, Inc.Inventors: Ronak Dholakia, Hussain S. Rangwala, William R. Patterson
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Patent number: 11690629Abstract: Systems for treating an aneurysm in a cerebral vessel and methods of use are described. In one embodiment, the system includes an elongate tubular member having a lumen, an expandable stent, and a delivery device. The expandable stent has a constrained state that is configured for delivery through the lumen of the elongate tubular member, and an expanded state configured for placement within the cerebral vessel adjacent the aneurysm. The delivery device includes an elongate member and a self-expandable portion. The proximal end of the self-expandable portion is coupled to the elongate member at or near the distal end of the elongate member. The self-expandable portion of the delivery device includes a tubular mesh structure having a constrained state and an expanded state. The stent is engaged (e.g., mechanical, frictional, or intermeshing) with the self-expandable portion of the delivery device.Type: GrantFiled: February 16, 2021Date of Patent: July 4, 2023Assignee: MICROVENTION, INC.Inventors: Claudio Plaza, James M. Thompson, Hung P. Tran
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Patent number: 11678886Abstract: Methods and devices for treating a cerebral aneurysm utilize a device that includes a self-expanding resilient permeable shell made from elongate resilient filaments. At least some of the filaments have a distal region that extends beyond the distal end of the permeable shell and form an extension having a generally circular shape when expanded. The permeable shell has a radially constrained elongated state configured for delivery within a microcatheter and has an expanded state with a globular, axially shortened configuration. The permeable shell has a plurality of openings formed between the braided filaments. The distal regions of the plurality of filaments that form the extension may be braided, partially braided, or unraveled. Once deployed within the cerebral aneurysm, the extension may be positioned near a dome of the cerebral aneurysm.Type: GrantFiled: April 2, 2019Date of Patent: June 20, 2023Assignee: MICROVENTION, INC.Inventors: Todd Hewitt, Brian E. Merritt, William R. Patterson, James M. Thompson, Claudio Plaza, Hung P. Tran
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Patent number: 11678888Abstract: An occlusive device, occlusive device delivery system, method of using, and method of delivering an occlusive device, and method of making an occlusive device to treat various intravascular conditions is described.Type: GrantFiled: June 26, 2020Date of Patent: June 20, 2023Assignee: MicroVention, Inc.Inventors: Jared Shimizu, Heath Bowman, Kiet Lam, Rohini Retarekar, Maria Moreno, Rogelio Cortez
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Publication number: 20230181191Abstract: A medical device is disclosed and may have a spiral shape structure that can function as a stent, such as a flow diversion stent to treat aneurysms. The medical device may have a spiral shape structure that can function as an occlusive device, for instance to occlude aneurysms. The medical device may include a shape setting structure to selectively adjust the shape of the medical device.Type: ApplicationFiled: February 10, 2023Publication date: June 15, 2023Applicant: MicroVention, Inc.Inventors: Hussain S. Rangwala, Ronak Dholakia
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Patent number: 11674050Abstract: Provided herein are coated substrates. Also provided herein are methods for attaching phosphonates, phosphonic acids, or derivatives thereof to an organic or an inorganic substrate (e.g., a metal oxide substrate) via phosphonate chemistry to form the coated substrates provided herein.Type: GrantFiled: October 11, 2018Date of Patent: June 13, 2023Assignee: MicroVention, Inc.Inventors: Aaron Baldwin, John Belletto, Garrett Ulrich
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Patent number: 11666742Abstract: A delivery adapter which may be used as an interface between a syringe and a catheter hub is described.Type: GrantFiled: April 23, 2020Date of Patent: June 6, 2023Assignee: MicroVention, Inc.Inventors: Jonathan Lam, Scott Pool
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Patent number: 11666341Abstract: An embolic coil with a secondary, delivered shape utilizing regions of varying stiffness is described. In some embodiments, these regions of varying stiffness are created by utilizing a larger primary wind loop diameter to create selective regions with lower stiffness and higher flexibility. In some embodiments, these regions of higher flexibility correspond to inflection regions on a complex coil shape to ease deliverability of the coil during therapeutic procedures.Type: GrantFiled: October 22, 2020Date of Patent: June 6, 2023Assignee: MicroVention, Inc.Inventors: Heath Bowman, Susanna Lin
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Publication number: 20230118896Abstract: An embolic coil with a secondary, delivered shape utilizing regions of varying stiffness is described. In some embodiments, these regions of varying stiffness are created by utilizing a larger primary wind loop diameter to create selective regions with lower stiffness and higher flexibility. In some embodiments, these regions of higher flexibility correspond to inflection regions on a complex coil shape to ease deliverability of the coil during therapeutic procedures.Type: ApplicationFiled: December 6, 2022Publication date: April 20, 2023Applicant: MicroVention, Inc.Inventors: Heath Bowman, Susanna Lin
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Publication number: 20230100280Abstract: A stent with a common connection interface, and a method and platform used to create a stent with a common connection interface is described. A common connection interface used to connect a stent to a pusher is described.Type: ApplicationFiled: December 6, 2022Publication date: March 30, 2023Applicant: MicroVention, Inc.Inventor: Ponaka Pung
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Publication number: 20230089956Abstract: A delivery system used for vascular implant delivery is described. In some embodiments, the delivery system includes a user-gripped handle used to aid in retracting and advancing an implant. In some embodiments, the delivery system includes a telescoping pusher system to aid in retracting and advancing an implant.Type: ApplicationFiled: November 28, 2022Publication date: March 23, 2023Applicant: MicroVention, Inc.Inventors: Vivian TRAN, Kaushik JOSHI
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Patent number: 11590267Abstract: Described are medical devices including expandable tubular bodies configured to be implanted into a lumen, wherein the outer surface of the expandable tubular bodies are coupled to a polymer(s).Type: GrantFiled: October 1, 2019Date of Patent: February 28, 2023Assignee: MicroVention, Inc.Inventors: Aaron Baldwin, Xinping Wu, Bryan Fiamengo, Garrett Ulrich, John Belletto
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Patent number: 11583283Abstract: A medical device is disclosed and may have a spiral shape structure that can function as a stent, such as a flow diversion stent to treat aneurysms. The medical device may have a spiral shape structure that can function as an occlusive device, for instance to occlude aneurysms. The medical device may include a shape setting structure to selectively adjust the shape of the medical device.Type: GrantFiled: July 16, 2020Date of Patent: February 21, 2023Assignee: MicroVention, Inc.Inventors: Hussain S. Rangwala, Ronak Dholakia