Patents by Inventor Stefan Schreck

Stefan Schreck 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: 12121461
    Abstract: The present disclosure relates to a delivery system, a catheter system and a method for the minimally invasive application of prostheses to an individual in need thereof and a method for loading a prosthesis onto a catheter system and/or a delivery system.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: October 22, 2024
    Assignee: JenaValve Technology, Inc.
    Inventors: Stefan Schreck, Teodoro S. Jimenez, Jr., Eileen Charlton, William Gould
  • Publication number: 20240301177
    Abstract: A mill dried microcrystalline cellulose (MCC) is obtained in a process comprising the steps of a) providing MCC having a moisture content of from 20 to 75 percent, based on the total weight of the moist MCC; and b) mill-drying the moist MCC in a single device capable of milling and drying in combination. The process can provide mill-dried microcrystalline cellulose having similar particle size distribution (LEFI, DIFI and EQPC) and moisture content as the corresponding spray-dried microcrystalline cellulose. The process can provide mill-dried microcrystalline cellulose having a higher tapped/untapped bulk density and/or a lower Carr index, while keeping a similar moisture content, as the corresponding spray-dried microcrystalline cellulose.
    Type: Application
    Filed: January 12, 2022
    Publication date: September 12, 2024
    Inventors: Rene Kelling, Olena Vozniuk, Stefan Junge, Michael Schreck, Jing G. Guo, Matthias R. Sprehe
  • Publication number: 20240261091
    Abstract: The disclosure relates to heart valve prostheses with the reduced need of pacemaker implantation and improved means for positioning the replacement heart valve.
    Type: Application
    Filed: April 12, 2024
    Publication date: August 8, 2024
    Applicant: JenaValve Technology, Inc.
    Inventors: Stefan SCHRECK, Hussain S. RANGWALA, Payam SAFFARI
  • Patent number: 12051908
    Abstract: Various embodiments of the teachings herein include a device for controlling energy flows between components of an energy system with an energy accumulator comprising a controller for adjusting the energy flows. The controller computes the energy flows beforehand for a time domain using an optimization method, the time domain having a beginning and an end. A charge level of the energy accumulator at the end of the time domain is essentially equal to a charge level of the energy accumulator at the beginning of the time domain.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: July 30, 2024
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Stefan Niessen, Sebastian Schreck, Sebastian Thiem
  • Patent number: 11938284
    Abstract: Some embodiments are directed to a catheter system comprising an introducer having a main body, an introducer sheath projecting from the main body, and a first seal supported within the introducer and a catheter having a main body, an outer sheath projecting from the main body, a second seal supported within the catheter, and an inner core configured to be advanced axially through the main body, the second seal, and the outer sheath. The introducer can be configured to be selectively engageable with the catheter so that the catheter can be selectively and removably linked with the introducer in the axial direction. The catheter system can also be configured such that, when the introducer and the catheter are linked, the catheter can be rotatable relative to the introducer. The introducer can be configured to radially restrain an endoluminal prosthesis.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: March 26, 2024
    Assignee: Endologix LLC
    Inventors: Joshua Benjamin, Stefan Schreck
  • Publication number: 20240058591
    Abstract: An apparatus includes a hub including a front port, a side port, and a back port including a hemostasis valve. The apparatus further includes a sheath extending from the hemostasis valve through the front port and shaped to define one or more lateral openings within the hub. The sheath is configured for insertion into a blood vessel such that, subsequently to the insertion, a rate of flow of blood between the side port and the blood vessel via the lateral openings is controllable using an instrument passing through the hemostasis valve and into the sheath such that the instrument closes at least a portion of the lateral openings. Other embodiments are also described.
    Type: Application
    Filed: August 17, 2022
    Publication date: February 22, 2024
    Inventor: Stefan Schreck
  • Publication number: 20230346233
    Abstract: The present technology relates to intracardiac pressure monitoring devices, and associated systems and methods. In some embodiments, the present technology includes an intracardiac pressure monitoring device including a pressure sensor configured to measure pressure within a heart chamber of a patient. The device further includes a barrier structure operably coupled to the pressure sensor and configured to prevent tissue overgrowth over the pressure sensor.
    Type: Application
    Filed: January 21, 2021
    Publication date: November 2, 2023
    Inventors: Brian Fahey, Peter Andriola, Stefan Schreck
  • Patent number: 11786252
    Abstract: Methods for treatment of aneurysms using a sequential manifold console to deploy multiple filling structures are provided herein. In one aspect, aneurysms are treated by simultaneously filling two double-walled filling structure using a sequential manifold console to guide a user in the steps to be followed in the procedure and to reliably achieve a consistent and durable aneurysmal treatment using a curable medium. The structures may be delivered over balloon deployment mechanisms in order to shape and open tubular lumens therethrough. Pairs of filling structures delivered to the aneurysm from different access openings of a patient can be simultaneously prepared and pressurized from a single treatment console when treating abdominal aortic aneurysms using the described systems and methods.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: October 17, 2023
    Assignee: Endologix LLC
    Inventors: Stefan Schreck, Jason Fox
  • Publication number: 20230139120
    Abstract: The disclosure relates to heart valve prostheses with the reduced need of pacemaker implantation and improved means for positioning the replacement heart valve.
    Type: Application
    Filed: May 22, 2022
    Publication date: May 4, 2023
    Applicant: JenaValve Technology, Inc.
    Inventors: Stefan SCHRECK, Hussain S. RANGWALA, Payam SAFFARI
  • Publication number: 20230118243
    Abstract: The present technology relates to intracardiac pressure monitoring devices, and associated systems and methods. In some embodiments, the present technology includes a device for monitoring pressure within a patient's heart. The device can include a pressure sensor configured to reside within a first chamber of a heart of a patient, and a pressure transmission element configured to extend from the first chamber through a septal wall to a second chamber of the heart of the patient. When the device is implanted in the patient's heart, the pressure transmission element is configured to transmit pressure from the second chamber to the pressure sensor residing within the first chamber.
    Type: Application
    Filed: February 5, 2021
    Publication date: April 20, 2023
    Inventors: William Jason Fox, Stefan Schreck, Brian Fahey, Peter Andriola, Scott Robertson, Miles Alexander, Anthony Pantages, Shahn Sage
  • Publication number: 20230056924
    Abstract: The present technology relates to intracardiac pressure monitoring devices, and associated systems and methods. In some embodiments, the present technology includes a device for monitoring pressure within a patient's heart. The device can include a pressure sensor configured to reside within a first chamber of a heart of a patient, and a pressure transmission element configured to extend from the first chamber through a septal wall to a second chamber of the heart of the patient. When the device is implanted in the patient's heart, the pressure transmission element is configured to transmit pressure from the second chamber to the pressure sensor residing within the first chamber.
    Type: Application
    Filed: November 4, 2022
    Publication date: February 23, 2023
    Inventors: William Jason Fox, Stefan Schreck, Brian Fahey, Peter Andriola, Scott Robertson, Miles Alexander, Anthony Pantages, Shahn Sage
  • Publication number: 20230042011
    Abstract: The present technology relates to interatrial shunting systems and methods. In some embodiments, the present technology includes interatrial shunting systems that include a shunting element having a lumen extending therethrough that is configured to fluidly couple the left atrium and the right atrium when the shunting element is implanted in a patient. The system can also include an anchoring mechanism coupled to the shunting element and configured to secure the shunting element within the patients heart.
    Type: Application
    Filed: January 21, 2021
    Publication date: February 9, 2023
    Inventors: Brian Fahey, William Jason Fox, Stefan Schreck
  • Patent number: 11497836
    Abstract: A method for forming a material in an in situ medical device by initiating polymerization of water soluble polymer precursors in an aqueous solution during or after transport of the polymerizable solution from its storage container to a space inside the in situ medical device is described. The stored aqueous solution with water soluble precursors lacks a free radical initiator which, in a powder form, is introduced into the aqueous solution during or after its transport into the space inside the in situ medical device. This storage and delivery system provides greater stability to the stored aqueous solution, allowing it to be stored at ambient temperature and providing extended shelf life over the solutions used in existing in situ polymerization systems. The flexibility to store and deliver/transport only one aqueous solution, instead of requiring the use of two different solutions, is also a benefit.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: November 15, 2022
    Assignee: Endologix LLC
    Inventors: Charles Bankert, Paolo Mendoza, Stefan Schreck
  • Patent number: 11497597
    Abstract: An apparatus includes a first stent graft that is at least partially insertable into a first blood vessel. The first stent graft has a first end, a second end, an inside surface, and an outside surface. The apparatus also includes an inflatable fill structure fixed to a portion of the outside surface of the first stent graft. The inflatable fill structure includes an outer membrane that is configured to extend beyond the first end of the first stent graft when the inflatable fill structure is in a filled state.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: November 15, 2022
    Assignee: Endologix LLC
    Inventors: Stefan Schreck, Craig Welk
  • Patent number: 11497576
    Abstract: The present disclosure presents a trajectory array guide system for defining a trajectory to a target location in the brain of a subject and for guiding an elongated tool along the trajectory. The trajectory array guide system can comprise: a base, an array guide, an imaging unit, and an elongated handle configured for connection with a stereotaxic navigation system. The present disclosure presents a method of using a trajectory array guide system for defining a trajectory to a target location in the brain of a subject and for guiding an elongated tool along the trajectory.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: November 15, 2022
    Assignees: Voyager Therapeutics, Inc., The Regents of the University of California
    Inventors: Adrian Philip Kells, Stefan Schreck, Edward H. Luttich, Kenneth A. Bloch, Krystof Bankiewicz
  • Publication number: 20220347446
    Abstract: The present technology is generally directed to interatrial shunting systems and associated devices and methods. For example, a system configured in accordance with embodiments of the present technology can include a shunting element implantable into a patient at or adjacent a septal wall. The shunting element can have a lumen that fluidly connects a left atrium and a right atrium of the patient to facilitate blood flow therebetween when the shunting element is implanted. In some embodiments, the system further includes a flow control element to selectively control blood flow between the left atrium and the right atrium.
    Type: Application
    Filed: June 18, 2020
    Publication date: November 3, 2022
    Inventors: Brian Fahey, Tom Saul, Claudio Argento, Reza Kassayan, William Jason Fox, Stefan Schreck, Anthony Pantages, Amr Salahieh, Marwan Berrada, Susan Philip, Veronica Neiman
  • Patent number: 11337800
    Abstract: The disclosure relates to heart valve prostheses with the reduced need of pacemaker implantation and improved means for positioning the replacement heart valve. In one aspect of the present disclosure, the stent scaffold of the valve prosthesis includes axially extending locators. The locators may be positioned within the cusp of the native aortic valve. Placement of the locators within the cusps may prevent further proximal movement of the stent scaffold into the left ventricle. By adjusting the location of the proximal end of the locators with respect to the proximal end of the stent scaffold, infra-annular placement of the stent scaffold in the aortic annulus may be assured. In another aspect, means for visualizing the positioning of replacement heart valves at an implant site inside an individual's body is disclosed.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: May 24, 2022
    Assignee: JenaValve Technology, Inc.
    Inventors: Stefan Schreck, Hussain S. Rangwala, Payam Saffari
  • Publication number: 20210401603
    Abstract: The present disclosure relates to a delivery catheter and the stepwise release of a stent from the catheter into the vasculature of a patient, as well as a loading device for a transcatheter heart valve (THV) prosthesis.
    Type: Application
    Filed: July 15, 2021
    Publication date: December 30, 2021
    Applicant: JenaValve Technology, Inc.
    Inventors: Stefan SCHRECK, Hussain RANGWALA, Payam SAFFARI, Makensley LORDEUS, Vincent Ming Hai CHOW, Kevin Hang Tang CHU
  • Patent number: 11065138
    Abstract: The present disclosure relates to a delivery catheter and the stepwise release of a stent from the catheter into the vasculature of a patient, as well as a loading device for a transcatheter heart valve (THV) prosthesis.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: July 20, 2021
    Assignee: JenaValve Technology, Inc.
    Inventors: Stefan Schreck, Hussain Rangwala, Payam Saffari, Makensley Lordeus, Vincent Ming Hai Chow, Kevin Hang Tang Chu
  • Publication number: 20210077083
    Abstract: A heart valve prosthesis for replacing a native atrioventricular valve of the heart. The prosthesis includes a housing component that is configured to be radially expandable and compressible between a radially compressed state and a radially expanded state to engage structure of the native atrioventricular valve to fix the housing component relative to the native atrioventricular valve. The housing component includes a housing body and an annular sealing element connected to an atrial end of the housing body. The annular sealing element is made of polyester and is reinforced with wire. A valve component is configured to be radially expandable and compressible between a radially compressed state and a radially expanded state within the housing component. The valve component includes a valve body having a valve passage extending therethrough and three leaflets made from pericardium secured to the valve body.
    Type: Application
    Filed: November 24, 2020
    Publication date: March 18, 2021
    Inventors: Suku Thambar, Martin Christopher Cook, Stefan Schreck, Stayajit Rohan Jayasinghe