Patents by Inventor Thorsten Siess

Thorsten Siess 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).

  • BLOOD PUMP WITH FLOW CANNULA
    Publication number: 20220168558
    Abstract: A blood pump for supporting a patient's heart includes a flow cannula having a distal portion including a distal end and a proximal portion including a proximal end opposite the distal end, the distal end of the flow cannula configured to be connected to the patient's heart or a blood vessel to establish fluid communication between the blood pump and the patient's heart and blood vessel, respectively. The flow cannula further includes an intermediate portion attached to the distal portion and the proximal portion, wherein the intermediate portion allows twisting thereof with a lower force than the distal portion and the proximal portion. The intermediate portion can be fully occluded by twisting it. At least a portion of the intermediate portion either alone or in combination with the distal portion is adapted to be permanently attached to the patient's heart or a blood vessel.
    Type: Application
    Filed: December 20, 2021
    Publication date: June 2, 2022
    Applicant: Abiomed Europe GmbH
    Inventors: Thorsten Siess, Gerd Spanier, Walid Aboulhosn
  • CATHETER DEVICE WITH A DRIVE SHAFT COVER
    Publication number: 20220134085
    Abstract: The invention relates to a catheter device, comprising a drive shaft extending from a driving region of the catheter device to a distal end region of the catheter device, a rotor which is attached to the drive shaft in the distal end region and a distal bearing for bearing a distal end of the drive shaft. The distal bearing comprises a drive shaft cover which is configured to cover a section of the drive shaft extending distally of the rotor. On a distal side of the rotor, a radially inner part of the rotor is recessed with respect to radially outer parts of the rotor to form a hollow space surrounding the drive shaft, wherein a proximal end of the drive shaft cover lies in said hollow space.
    Type: Application
    Filed: February 21, 2020
    Publication date: May 5, 2022
    Applicant: ECP ENTWICKLUNGSGESELLSCHAFT MBH
    Inventors: Thorsten Siess, Mario Scheckel, Jörg Schumacher, Robert Decke
  • INTEGRATED EXPANDABLE ACCESS FOR MEDICAL DEVICE INTRODUCER
    Publication number: 20220096125
    Abstract: An integrated sheath assembly for inserting f a medical device such as a percutaneous pump into a vessel can include a first sheath having a first lumen defining a first opening between proximal and distal ends of the first sheath for passage of a portion of the pump and a second sheath having a second lumen defining a second opening between proximal and distal ends of the second sheath. The second lumen is expandable to allow passage of the first sheath containing the portion of the pump. The first sheath fills a space between the second sheath and the portion of the percutaneous pump when the first sheath containing the percutaneous pump is inserted into the second lumen. The first sheath has a first hub, and the second sheath has a second hub. In some embodiments, a single sheath and a movable connector can be integrated on the medical device.
    Type: Application
    Filed: October 26, 2021
    Publication date: March 31, 2022
    Applicant: ABIOMED, Inc.
    Inventors: Glen R. Fantuzzi, Thorsten Siess
  • Ventricular assist device control
    Patent number: 11285311
    Abstract: A control device for a ventricular assist device (VAD) with settable speed levels. The control device includes an input configured to receive at least one measuring signal related to a physiological condition of the circulatory system of a patient receiving heart assistance by the VAD, where the control device is configured to derive an actual value of at least one characteristic parameter of the heart from one or more of the at least one measuring signal and to provide a refined actual value of the at least one characteristic parameter in which effects of physiologically caused fluctuations are eliminated or reduced. The control device further includes an output configured to output an updated setting value for the speed level, where the control device is configured to produce the updated setting value based on the refined actual value and a predeterminable set-point value.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: March 29, 2022
    Assignee: ABIOMED EUROPE GMBH
    Inventors: Thorsten Siess, Walid Aboulhosn, Christoph Nix, Katrin Lunze
  • BLOOD PUMP
    Publication number: 20220080180
    Abstract: A blood pump comprises a pump casing having a blood flow inlet and a blood flow outlet connected by a passage, and an impeller rotatable about an axis of rotation. A surface of the impeller faces a surface of the pump casing spaced from said surface of the impeller by a clearance, the clearance being in fluid connection with the passage at a clearance transition point. At least one wash out channel extends through the impeller and is in fluid connection with the passage via a first opening and with the clearance via a second opening. The first opening of the wash out channel is arranged in an area of the impeller that is under a higher pressure than the clearance transition point so as to cause a blood flow from the first opening through the wash out channel and the clearance to the clearance transition point.
    Type: Application
    Filed: July 27, 2021
    Publication date: March 17, 2022
    Applicant: Abiomed Europe GmbH
    Inventors: Thorsten Siess, Walid Aboulhosn
  • CATHETER SYSTEM AND INTRAVASCULAR BLOOD PUMP HAVING SAID CATHETER SYSTEM
    Publication number: 20220072298
    Abstract: A catheter (20), which can be part of an intravascular blood pump, possesses a kink sensor which extends over the total length of the catheter and comprises an optical fiber (28A). The optical fiber is attached to an evaluation device (100) which evaluates a preset light quantity transmitted through the optical fiber as to whether a part of the light quantity is coupled out of the optical fiber along the length of the optical fiber. This is interpreted as a kink event and displayed. The optical fiber preferably utilized for the kink sensor is the optical fiber of an optical pressure sensor.
    Type: Application
    Filed: September 22, 2021
    Publication date: March 10, 2022
    Applicant: Abiomed Europe GmbH
    Inventors: Gerd Spanier, Thorsten Siess
  • INTRAVASCULAR BLOOD PUMP COMPRISING CORROSION RESISTANT PERMANENT MAGNET
    Publication number: 20220051847
    Abstract: This invention is directed to a corrosion resistant permanent magnet, to a method for producing a corrosion resistant permanent magnet, and to an intravascular blood pump comprising the magnet. The magnet is corrosion resistant due to a composite coating comprising a metal layer, optionally a metal oxide layer, a layer formed from poly(2-chloro-p-xylylene), and a linker layer between the metal oxide layer and the poly(2-chloro-p-xylylene) layer.
    Type: Application
    Filed: July 26, 2021
    Publication date: February 17, 2022
    Applicant: Abiomed Europe GmbH
    Inventors: Thorsten Siess, Claudia Mourran
  • CENTRIFUGAL BLOOD PUMP WITH HYDRODYNAMIC BEARING
    Publication number: 20220042511
    Abstract: A centrifugal blood pump without a mechanical bearing comprises a pump casing (1), an impeller (9) arranged in the pump casing rotatably about the central axis and freely movable axially and radially within a limited clearance. The impeller has per-manent magnets or permanently magnetized magnetic regions (N/S) which cooperate with an electromagnetic drive to set the impeller rotating. A circular wall (12) or circularly arranged wall sections are provided within the pump casing, their inner surfaces defining a radial clearance together with the outer circumference of the impeller to form a hydrodynamic radial bearing for the impeller.
    Type: Application
    Filed: June 23, 2021
    Publication date: February 10, 2022
    Applicant: Abiomed Europe GmbH
    Inventors: Thorsten Siess, Gerd Spanier
  • Blood pump with flow cannula
    Patent number: 11235140
    Abstract: A blood pump for supporting a patient's heart includes a flow cannula having a distal portion including a distal end and a proximal portion including a proximal end opposite the distal end, the distal end of the flow cannula configured to be connected to the patient's heart or a blood vessel to establish fluid communication between the blood pump and the patient's heart and blood vessel, respectively. The flow cannula further includes an intermediate portion attached to the distal portion and the proximal portion, wherein the intermediate portion allows twisting thereof with a lower force than the distal portion and the proximal portion. The intermediate portion can be fully occluded by twisting it. At least a portion of the intermediate portion either alone or in combination with the distal portion is adapted to be permanently attached to the patient's heart or a blood vessel.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: February 1, 2022
    Assignee: Abiomed Europe GmbH
    Inventors: Thorsten Siess, Gerd Spanier, Walid Aboulhosn
  • BLOOD PUMP
    Publication number: 20220008713
    Abstract: An intravascular blood pump comprises a pump casing having a blood flow inlet and a blood flow outlet, and an impeller arranged in said pump casing so as to be rotatable about an axis of rotation, wherein the impeller has blades sized and shaped for conveying blood from the blood flow inlet to the blood flow outlet. The blood pump further comprises a drive unit for rotating the impeller, the drive unit comprising a plurality of posts arranged about the axis of rotation, wherein each of the posts includes a shaft portion and a head portion. Coil windings around the posts are sequentially controllable so as to create a rotating magnetic field. The drive unit further comprises a back plate which engages ends of the shaft portions of the posts opposite the head portions.
    Type: Application
    Filed: July 23, 2021
    Publication date: January 13, 2022
    Applicant: Abiomed Europe GmbH
    Inventors: Thorsten Siess, Jimpo Wang, Gerd Spanier
  • Blood pump
    Patent number: 11219755
    Abstract: The invention relates to a blood pump. The blood pump comprises a flexible drive shaft (3) guided in a catheter, a conveying element (6) connected to the drive shaft (3) in a distal region of the drive shaft (3), and a motor (7), wherein the motor (7) has a stator (36) and a rotor (30) mounted such that it can move in the stator (36). The stator (36) comprises a winding (37) and the rotor (30) comprises a rotor magnet (31). In addition, the drive shaft (3) is connected to the rotor (30) at a proximal end of the drive shaft (3). The stator (36) and the rotor (30) are nondetachably connected to one another, and form a gap (40) with a ring-shaped cross-section, which is delimited by the rotor (30) and the stator (36).
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: January 11, 2022
    Assignee: ECP ENTWICKLUNGSGESELLSCHAFT MBH
    Inventors: Thorsten Siess, Gerd Spanier, Jörg Schumacher
  • Graft anchor devices, systems and methods
    Patent number: 11213412
    Abstract: The present disclosure provides medical devices, systems and methods and in particular to devices and methods useful for anchoring graft materials to bodily structures.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: January 4, 2022
    Assignee: ABIOMED, INC.
    Inventors: Paul Spence, Rob Dowling, Robert T. V. Kung, Caitlyn Hastie, Thorsten Siess, Eric Gratz, Gerd Spanier
  • CATHETER FOR INTRAVASCULAR BLOOD PUMP
    Publication number: 20210402169
    Abstract: An intravascular blood pump (P) comprises a catheter (5) and a pumping device (1) attached to a distal end (15) of the catheter (5). The blood pump (P) is advanced through a patient's blood vessel by means of the catheter (5). The catheter (5) has an elongate tubular body (10) and a porous three-dimensional structure (6) provided on at least a portion of the outer surface (8) of the catheter body (10) to promote adsorption of proteins and formation of an autologous graft (7) to prevent the catheter (5) from growing into the inner wall of the blood vessel. The porous three-dimensional structure (6) may be formed as a textile sleeve (6), preferably made of a warp knitted fabric.
    Type: Application
    Filed: December 6, 2019
    Publication date: December 30, 2021
    Applicant: Abiomed Europe GmbH
    Inventors: Claudia Mourran, Thorsten Siess
  • CANNULLA FOR INTRAVASCULAR BLOOD PUMP
    Publication number: 20210402170
    Abstract: A method of manufacturing a cannula (4) for an intravascular blood pump comprises the steps of forming a first axial section (13) and a second axial section (15) of an elongate tubular body of the cannula (4) by dispensing a first liquid material and a second liquid material, respectively, onto a mandrel (7) by means of at least one dispenser (8). The mandrel (7) is rotated and the dispenser (8) moves relative to the mandrel (7) in an axial direction during dispensing of the liquid materials. The first and second axial sections (13, 15) are formed so as to have different bending stiffnesses. The first and second liquid materials are dispensed onto the mandrel (7) such that the first and second liquid materials blend into each other to form a smooth transition area (14).
    Type: Application
    Filed: June 21, 2018
    Publication date: December 30, 2021
    Inventors: Walid Aboulhosn, Thorsten Siess, Frank Kirchhoff
  • Integrated expandable access for medical device introducer
    Patent number: 11197690
    Abstract: An integrated sheath assembly for inserting a medical device such as a percutaneous pump into a vessel can include a first sheath having a first lumen defining a first opening between proximal and distal ends of the first sheath for passage of a portion of the pump and a second sheath having a second lumen defining a second opening between proximal and distal ends of the second sheath. The second lumen is expandable to allow passage of the first sheath containing the portion of the pump. The first sheath fills a space between the second sheath and the portion of the percutaneous pump when the first sheath containing the percutaneous pump is inserted into the second lumen. The first sheath has a first hub, and the second sheath has a second hub. In some embodiments, a single sheath and a movable connector can be integrated on the medical device.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: December 14, 2021
    Assignee: Abiomed, Inc.
    Inventors: Glen R. Fantuzzi, Thorsten Siess
  • Blood pump
    Patent number: 11191945
    Abstract: Blood pump for percutaneous insertion into a heart's ventricle comprising an electrical motor for driving the blood pump, the electrical motor comprising at least tree motor winding units, wherein each motor winding unit is individually connectable to a power supply via two separate phase supply lines connected to the respective motor winding unit terminals. Motor controller for driving and controlling the electrical motor of the blood pump, wherein the motor controller comprises corresponding phase supply line driving units for each motor winding units of the electrical motor of the blood pump which phase supply line driving units are connected via the corresponding two phase supply lines with the corresponding motor winding unit. Blood pump system comprising the blood pump and the motor controller.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: December 7, 2021
    Assignee: Abiomed Europe GmbH
    Inventors: Thorsten Siess, Christof Malzkorn, Martin Kortyka, Christian Moser
  • DUAL LUMEN SHEATH FOR ARTERIAL ACCESS
    Publication number: 20210361926
    Abstract: A sheath assembly for the insertion of a percutaneous pump includes a tubular sheath body dimensioned for insertion into a blood vessel through a vessel aperture. The tubular sheath body includes a wall having a proximal end portion, a distal end portion, a longitudinal axis, an outer surface, an inner surface defining a first lumen substantially parallel to the longitudinal axis, and a second lumen disposed within the wall between the inner surface and the outer surface and extending from the proximal end portion to the distal end portion. The first lumen is dimensioned to allow passage of a portion of the percutaneous pump, and the second lumen is dimensioned for passage of a guidewire. A stylet is removably positioned to substantially occlude the second lumen. The stylet has a proximal end releasably secured to the sheath assembly.
    Type: Application
    Filed: June 18, 2021
    Publication date: November 25, 2021
    Applicant: ABIOMED, Inc.
    Inventors: Scott C. Corbett, Glen R. Fantuzzi, John Murphy, Frank Kirchhoff, David Brousseau, Thorsten Siess
  • BLOOD PUMP ASSEMBLY HAVING A SENSOR AND A SENSOR SHIELD
    Publication number: 20210322757
    Abstract: A blood pump assembly can include various components such as a housing and a sensor configured to detect one or more characteristics of the blood. In some embodiments, the sensor can be coupled to the housing and can include a sensor membrane configured to deflect in response to a change in a blood parameter (e.g., pressure). The blood pump assembly can include a shield that covers at least a portion of the sensor membrane so as to protect the sensor from damage when the blood pump assembly is inserted through an introducer and navigated through the patient's vasculature and/or when the blood pump assembly is inserted into the heart in a surgical procedure. One or more protective layers can be deposited over the sensor membrane to prevent the sensor membrane from being dissolved through interactions with the patient's blood.
    Type: Application
    Filed: May 5, 2021
    Publication date: October 21, 2021
    Applicant: ABIOMED, Inc.
    Inventors: Ralph Louis D'Ambrosio, Bruce Adams, Michael Thomas Finnegan, Gerd Spanier, Thorsten Siess
  • Catheter system and intravascular blood pump having said catheter system
    Patent number: 11147960
    Abstract: A catheter (20), which can be part of an intravascular blood pump, possesses a kink sensor which extends over the total length of the catheter and comprises an optical fiber (28A). The optical fiber is attached to an evaluation device (100) which evaluates a preset light quantity transmitted through the optical fiber as to whether a part of the light quantity is coupled out of the optical fiber along the length of the optical fiber. This is interpreted as a kink event and displayed. The optical fiber preferably utilized for the kink sensor is the optical fiber of an optical pressure sensor.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: October 19, 2021
    Assignee: Abiomed Europe GmbH
    Inventors: Gerd Spanier, Thorsten Siess
  • BLOOD PUMP
    Publication number: 20210299433
    Abstract: A blood pump comprises a pump section and a flow cannula. A proximal end portion of the flow cannula is connected to the pump section such that blood can enter the blood flow inlet, and a distal end portion of the flow cannula includes at least one blood flow-through opening for blood to enter the flow cannula. The distal end portion comprises an enlarged diameter portion, with at least a major portion of the blood flow-through opening being disposed in the enlarged diameter portion. The blood pump further comprises a sleeve overlapping the enlarged diameter portion. The sleeve has a structure that prevents its distal end from bending radially inwards into the blood flow-through openings.
    Type: Application
    Filed: April 14, 2021
    Publication date: September 30, 2021
    Applicant: Abiomed Europe GmbH
    Inventors: Thorsten Siess, Walid Aboulhosn, Frank Kirchhoff, Christoph Nix, Gerd Bruno Spanier