Patents by Inventor Ralf Hannes

Ralf Hannes 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: 12029441
    Abstract: A device (1) for removing thrombi from blood vessels, wherein the device (1) has an expanded state in which it is set free temporarily in the blood vessel and a compressed state in which it is introduced into and removed from the blood vessel through a microcatheter, wherein the device (1) has a proximal (2), a middle (3) and a distal portion (4), with the middle portion (3) having a substantially cylindrical structure and the proximal portion (2) being coupled to an insertion aid (5), and the distal portion (4) having a substantially cylindrical basic structure, with a constriction (6) being arranged between the middle (3) and distal portion (4), and the distal portion (4) being at least partially covered by a membrane (7). The inventive device (1) is characterized by the fact that thrombus fragments becoming detached from the thrombus to be captured are safely retained and removed from the blood vessel.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: July 9, 2024
    Assignee: Phenox GmbH
    Inventors: Pervinder Bhogal, Hans Henkes, Hermann Monstadt, Ralf Hannes
  • Patent number: 11963895
    Abstract: A device (1) for introducing endovascular implants (3), which have an at least partially cylindrical design, into blood vessels, where the implant (3) is provided in an expanded state in which the implant is placed in the blood vessel, and in a compressed state, in which the implant can be introduced into the blood vessel, and the device (1) has an elongated shaft (2), the exterior of which is releasably secured to the implant (3) in the compressed state and through which the implant (3) runs.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: April 23, 2024
    Assignee: phenox GmbH
    Inventors: Hans Henkes, Ralf Hannes, Hermann Monstadt
  • Patent number: 11793656
    Abstract: A device for introducing an implant (1) into blood vessels or hollow organs of the human or animal body. The device includes an implant (1), an insertion wire (14) and a release tube (13), wherein the implant (1) is deformable so that it fits into a microcatheter (8) and expands once the external constraint of the microcatheter (8) disappears, adapting to the diameter of the blood vessel or hollow organ, wherein a holding element (2) is arranged on the insertion wire (14) and the holding element (2) has at its periphery at least one groove (3) set into the holding element (2), running along the circumference of the holding element (2) and forming tracks in the form of curved lines, wherein the implant (1) has holding wired (5) extending proximally, which are fitted into the grooves (3).
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: October 24, 2023
    Assignee: phenox GmbH
    Inventors: Hans Henkes, Hermann Monstadt, Ralf Hannes, Stefan Rolla, Manuel Salin
  • Patent number: 11779686
    Abstract: A medical device substrate with a coating including a functional layer located on the substrate, with the functional layer including at least one sugar alcohol and being bonded to the substrate directly or indirectly via a functionalization of the sugar alcohol. Alternatively, the functional layer may also include other saccharides, in which case it is essential that polymerization of the saccharides takes place only upon bonding to the substrate. The inventive medical device exhibits reduced platelet adhesion and aggregation.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: October 10, 2023
    Assignee: Phenox GmbH
    Inventors: Uwe Schedler, Christian Heise, Thomas Thiele, Hans Henkes, Hermann Monstadt, Ralf Hannes, Tim Lenz-Habijan, Catrin Bannewitz
  • Patent number: 11382778
    Abstract: The invention relates to a device (1) having a stent structure (2) intended for the insertion into blood vessels of the human or animal body, wherein the stent structure (2) assumes an expanded state during which it is in contact with the inner wall of the blood vessel and a contracted state during which the stent structure being located in a microcatheter can be moved through the blood vessel, wherein the stent structure (2) preferably being connected at its proximal end with an delivery wire (3) and wherein the device (1) being employed for the treatment of vasospasm. Moreover, the invention also relates to a relevant method for the treatment of vasospasm.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: July 12, 2022
    Assignees: Femtos GmbH, Charité—Universitätsmedizin Berlin
    Inventors: Thomas Liebig, Hermann Monstadt, Hans Henkes, Ralf Hannes
  • Patent number: 11369499
    Abstract: The invention relates to a device for the introduction of an implant (1) into blood vessels of the human body, said device comprising an implant (1), a pusher or insertion wire (14), and a tube-like sheathing (13), wherein the implant (1) is capable of being deformed inside a microcatheter in a manner that allows it to assume a shape of reduced diameter and, after omission of such external constraint exerted by the microcatheter, expand at the placement site and adapt to the blood vessel diameter, and wherein the implant (1) being provided at the proximal end with connection elements (6) attaching it to a retaining element (15) by means of which the implant (1) is coupled to the pusher wire (14), and wherein the retaining element (15) is provided with peripheral cutouts (16) into which the connecting elements (6) are fitted, with the tube-like sheathing (13) being drawn in a form-closed manner over the retaining element (15) with fitted connection elements (6) such that the connection elements (6) are secured
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: June 28, 2022
    Assignee: Phenox GmbH
    Inventors: Hermann Monstadt, Ralf Hannes, Diana Stateczny, Stefan Rolla, Manuel Salin
  • Patent number: 11229439
    Abstract: The invention relates to an implant for vascular applications that can be transported by means of a catheter and is intended in particular to influence the blood flow in the area of arteriovenous malformations, such as fistulas and aneurysms, to fill the saclike dilation of the malformation, promote thrombus formation and cover the neck of the malformation. The implant according to the invention is provided with an occlusion unit (1, 13) having a three-dimensional shape constructed from several subunits (5a, 14) from a framework of struts (5, 16, 17), with a covering, preferably a membrane (6), being located between struts (5, 16, 17).
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: January 25, 2022
    Assignee: Femtos GmbH
    Inventors: Hermann Monstadt, Hans Henkes, Ralf Hannes
  • Patent number: 11179160
    Abstract: An occlusive implant for bifurcation aneurysms (A), with the implant (1) being in an expanded state in which it is implanted in the blood vessel and in a contracted state in which it is movable through the blood vessel, with the implant (1) having a proximal fixing section (3) by means of which the implant (1) can be secured to the wall of a blood vessel, a distal section (5) where the implant (1) in expanded state is radially widened relative to the fixing section (3) and which is intended for placement in or in front of the aneurysm (A), and having a transition section (4) located between the fixing section (3) and the distal section (5), wherein fixing section (3) is attached to an delivery wire (2) in a detachable manner and wherein the transition section (4) has a second detachment point (7) which enables the distal section (5) to be detached.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: November 23, 2021
    Assignee: Phenox GmbH
    Inventors: Hans Henkes, Hermann Monstadt, Ralf Hannes
  • Patent number: 11166827
    Abstract: A device for introducing an implant (1) into blood vessels or hollow organs of the human or animal body. The device includes an implant (1), an insertion wire (14) and a release tube (13), wherein the implant (1) is deformable so that it fits into a microcatheter (8) and expands once the external constraint of the microcatheter (8) disappears, adapting to the diameter of the blood vessel or hollow organ, wherein a holding element (2) is arranged on the insertion wire (14) and the holding element (2) has at its periphery at least one groove (3) set into the holding element (2), running along the circumference of the holding element (2) and forming tracks in the form of curved lines, wherein the implant (1) has holding wired (5) extending proximally, which are fitted into the grooves (3).
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: November 9, 2021
    Assignee: Phenox GmbH
    Inventors: Hans Henkes, Hermann Monstadt, Ralf Hannes, Stefan Rolla, Manuel Salin
  • Patent number: 11110250
    Abstract: A catheter (1) comprising an elongate tubular body (2) having a proximal end (3), a distal end (4), and an inner lumen (5) extending through the elongate tubular body (2), wherein the elongate tubular body (2) comprises a proximal section (6) and a distal section (7), wherein at least the proximal section (6) comprises at least two layers, wherein the proximal end (3) is connected with a catheter hub (8) being an adapter of greater radial outside dimension than the elongate tubular body (2), wherein the catheter hub (8) has an inner lumen (9) of larger inside diameter than the elongate tubular body (2), and wherein the innermost layer (10) of the proximal section (6) extends into the catheter hub (8) and flares from the proximal section (6) to the catheter hub (8). The catheter ensures a smooth transition of a medical device, e.g. a stent to be transferred from a storage device like a sheath into the tubular body of the catheter.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: September 7, 2021
    Assignee: Phenox Ltd.
    Inventors: Volker Trösken, Hermann Monstadt, Ralf Hannes, David Slattery, Ken Beatty
  • Patent number: 10828040
    Abstract: An implant (1) to be used for the occlusion of bifurcation aneurysms, with the implant (1) having an expanded state in which it is implanted in the blood vessel (Z) and a contracted state in which it is movable through the blood vessel (Z) and a proximal fixing section (3) a distal section (5) where the implant (1) is radially widened relative to the fixing section (3) and which is intended for placement in or in front of the aneurysm (A), and a transition section (4) located between the fixing section (3) and the distal section (5), wherein the implant (1). The implant is composed of interconnected or intersecting filaments (10) originating from the fixing section (3) or distal section (5) which meet centrally in the transition section (4), wherein the filaments (10) in the transition section (4) at least to some extent pass through a sleeve (7).
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: November 10, 2020
    Assignee: Phenox GmbH
    Inventors: Hans Henkes, Hermann Monstadt, Ralf Hannes
  • Publication number: 20190275294
    Abstract: A catheter (1) comprising an elongate tubular body (2) having a proximal end (3), a distal end (4), and an inner lumen (5) extending through the elongate tubular body (2), wherein the elongate tubular body (2) comprises a proximal section (6) and a distal section (7), wherein at least the proximal section (6) comprises at least two layers, wherein the proximal end (3) is connected with a catheter hub (8) being an adapter of greater radial outside dimension than the elongate tubular body (2), wherein the catheter hub (8) has an inner lumen (9) of larger inside diameter than the elongate tubular body (2), and wherein the innermost layer (10) of the proximal section (6) extends into the catheter hub (8) and flares from the proximal section (6) to the catheter hub (8). The catheter ensures a smooth transition of a medical device, e.g. a stent to be transferred from a storage device like a sheath into the tubular body of the catheter.
    Type: Application
    Filed: March 5, 2019
    Publication date: September 12, 2019
    Applicant: Phenox Ltd.
    Inventors: Volker Trösken, Hermann Monstadt, Ralf Hannes, David Slattery, Ken Beatty
  • Patent number: 10405964
    Abstract: The invention relates to a membrane implant for the treatment of vascular malformations, said implant being implantable by endovascular methods into the vessel to be treated, wherein the membrane implant consists of an expandable stent (4) and a membrane (3, 5, 11, 2) connected with the stent (4), with said membrane (3, 5, 11, 4) covering the meshes of the stent (4) at least in a central region, wherein said membrane (2, 3, 5, 11) is provided in the form of a non-woven fabric comprising plastic fibrils, and the membrane (2, 3, 5, 11) forms an integral bond with the stent (4) and, at least partially, is of porous design.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: September 10, 2019
    Assignee: Phenox GmbH
    Inventors: Ralf Hannes, Hermann Monstadt
  • Patent number: 10292803
    Abstract: The invention relates to a thrombectomy device with a substantially cylindrical stent structure (1), which has a multiplicity of meshes (3, 4) and two connectors (5, 5?) that are arranged on different meshes (3) at the proximal end of the stent structure (1), and with a guide wire (12), which has a coupling element (11) to which the connectors (5, 5?) are coupled, with a slit (7), which extends in a helical formation across the jacket surface (8) of the stent structure (1), and with a tensioning bow (9), which spans the slit (7) at the proximal end.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: May 21, 2019
    Assignee: phenox GmbH
    Inventors: Hermann Monstadt, Ralf Hannes, Jörg Ascherfeld
  • Patent number: 10265154
    Abstract: A blood vessel implant to influence the flow of blood in the area of arteriovenous malformations. The implant has a wall of individual filaments forming a tubular braiding extending axially from the proximal to the distal end, the individual filaments crossing and forming points of intersection. The implant is deformable so that in an insertion catheter it is shaped so that its diameter is reduced and can be expanded at the implantation site adapting to the diameter of the blood vessel. The filament ends at the proximal and/or distal end of the braiding are each brought together at least in pairs and connected with each other permanently. The filament ends connect with each other and are shaped so as to be atraumatic The filaments cross at the points of intersection distally from the filament ends and are connected with each other at the proximal end of the implant.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: April 23, 2019
    Assignee: Phenox, GmbH
    Inventors: Manuel Schneider, Stefan Rolla, Carsten Aporta, Ralf Hannes, Hermann Monstadt
  • Patent number: 9867726
    Abstract: The invention relates to a device having an endovascular implant (1) for the introduction into blood vessels or body cavities of the human or animal body and an insertion aid (2), wherein the implant (1) and the insertion aid (2) being connected to each other via a detachment element (3) designed to be electrolytically corrodible so that after the implant (1) has been inserted into the body and a voltage has been applied an at least partial dissolution of the detachment element (3) takes place causing the implant (1) to be separated from its the insertion aid (3), with the detachment element (3) being made of a cobalt-chrome alloy containing at least 20% w/w cobalt and 10 to 40% w/w chrome.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: January 16, 2018
    Assignee: Phenox GmbH
    Inventors: Carsten Aporta, Jörg Ascherfeld, Ralf Hannes, Hermann Monstadt
  • Patent number: 9737318
    Abstract: The invention relates to a thrombectomy device having a substantially cylindrical stent structure (1) comprised of a plurality of meshes (3, 4) and also two connectors (5, 5?) that are disposed at different meshes (3) at the proximal end of the stent structure (1). The device also has a guide wire (12), which comprises a coupling element (11) to which the connectors (5, 5?) are coupled, and a slit (7), which extends helically over the shell face (8) of the stent structure (1), and a tensioning clip (9) that spans the slit (7) at the proximal end.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: August 22, 2017
    Assignee: Phenox GmbH
    Inventors: Hermann Monstadt, Ralf Hannes, Jorg Ascherfeld
  • Patent number: 9707002
    Abstract: The invention relates to a device for the removal of foreign bodies and thrombi from body cavities and blood vessels using a guide wire provided with a distal element with said distal element being provided with an orthogonal structure.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: July 18, 2017
    Assignee: Phenox GmbH
    Inventors: Elina Henkes, Hans Henkes, Ralf Hannes, Hermann Monstadt
  • Publication number: 20160206455
    Abstract: The invention relates to a device for the introduction of an implant (1) into blood vessels of the human body, said device comprising an implant (1), a pusher or insertion wire (14), and a tube-like sheathing (13), wherein the implant (1) is capable of being deformed inside a microcatheter in a manner that allows it to assume a shape of reduced diameter and, after omission of such external constraint exerted by the microcatheter, expand at the placement site and adapt to the blood vessel diameter, and wherein the implant (1) being provided at the proximal end with connection elements (6) attaching it to a retaining element (15) by means of which the implant (1) is coupled to the pusher wire (14), and wherein the retaining element (15) is provided with peripheral cutouts (16) into which the connecting elements (6) are fitted, with the tube-like sheathing (13) being drawn in a form-closed manner over the retaining element (15) with fitted connection elements (6) such that the connection elements (6) are secured
    Type: Application
    Filed: September 3, 2014
    Publication date: July 21, 2016
    Applicant: Phenox GmbH
    Inventors: Hermann Monstadt, Ralf Hannes, Diana Stateczny, Stefan Rolla, Manuel Salin
  • Patent number: 9198665
    Abstract: The invention relates to a device for the implantation of microcoils into body cavities and blood vessels, in particular aneurysms, with said microcoils comprising wires forming a plurality of windings, at least one microcoil serving as occlusion helix for the occlusion of the body cavity or blood vessel, and the device consisting of a catheter, one or several microcoils movably arranged in longitudinal direction within the catheter and at least one securing means passing at least partially through the lumen of the occlusion helix, with said securing means being fixed in its end areas inside the microcoils. Such a fixation of the securing means is achieved in at least one end area by providing a frictional connection with the microcoil in such a manner that this connection is detachable from the microcoil when a certain tensile force acting on the securing means is exceeded.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: December 1, 2015
    Assignee: Covidien LP
    Inventors: Hermann Monstadt, Achim Flesser, Ralf Hannes