Abstract: The invention relates to a stator vane device (105) for guiding the flow of a fluid flowing out of an outlet opening (110) of a heart support system (100). The stator vane device (105) has at least one stator vane (115), which can be connected to the heart support system (100) and arranged in the region of the outlet opening (110). The at least one stator vane (115) is formed such that it can be folded together to take an insertion state of the heart support system (100) and can be unfolded to take a flow guiding state. The at least one stator vane (115) is designed to project radially or obliquely from the heart support system (100) in the flow guiding state.

Abstract: The invention relates to a method for operating an implanted, ventricular assist system (2), comprising the following steps: a) determine a first impedance parameter at a first point in time by means of the assist system (2), b) determine a second impedance parameter at a second point in time by means of the assist system (2), c) at least determine a change of the impedance parameter using the first impedance parameter and the second impedance parameter, or compare at least the first or second impedance parameter to a threshold value.

Abstract: The invention relates to a device (10; 10a) for inductive energy transfer into a human body (1), having a transmitter unit (11) with a housing (12), in which at least one transmitter coil (14) is arranged, wherein the housing (12) comprises a contact surface (23), which is configured in order to be brought into surface contact with the body (1), and a receiver unit (20) that can be positioned in the body (1) with a receiver coil (21), wherein a heat-insulating element (26) and a heat-conducting element (30; 30a) are arranged between the transmitter coil (14) and the body.

Abstract: The invention relates to a device (10) for inductive energy transmission into a human body (1) with a transmitter unit (23) having a transmission coil (25), wherein the transmission coil (25) has a coil winding (26). According to the invention, the carrier element (32) is a surface area-forming flexible structure that can be made to conform to a body contour, and the coil winding (26) of the transmission coil (25) is fixed to the carrier element (32).

Abstract: The approach presented here relates to an analysis device (100) for analyzing a viscosity of a fluid (217). The analysis device (100) comprises a detection device (110) and a provisioning device (115). The detection device (110) is formed to determine the viscosity of the fluid (217) using at least one Doppler parameter of a Doppler spectrum of the fluid (217). The provisioning device (115) is formed to provide or transmit a viscosity signal that represents the viscosity determined by the detection device (110).

Abstract: The invention relates to a method for determining a flow rate of a fluid flowing through an implanted vascular assist system (1), said method comprising the following steps: a) carrying out a first pulsed Doppler measurement at a first pulse repetition rate by means of an ultrasonic sensor (2) of the assist system (1); b) carrying out a second pulsed Doppler measurement at a second pulse repetition rate by means of the ultrasonic sensor (2) of the assist system (1), wherein the second pulse repetition rate differs from the first pulse repetition rate; c) determining the flow rate using measurement results of the first pulsed Doppler measurement and the second pulsed Doppler measurement.

Abstract: The invention relates to a line device (105) for conducting a blood flow for a heart support system. The heart support system has a head unit and an outlet unit. The line device (105) has a main part (205). The main part (205) has, at a first end, a first attachment section (210) for attaching the line device (105) to the head unit and, at a second end, a second attachment section (215) for attaching the line device (105) to the outlet unit. Furthermore, the main part (205) has a mesh section (220) between the attachment sections (210, 215), wherein the mesh section (220) has a mesh structure (230) formed from at least one mesh wire (225). In addition, the main part (205) has an inlet section (235), arranged in the first attachment section (210), for introducing the blood flow into the main part (205).

Abstract: A method of manufacturing electrical tracks in a region of an intravascular blood pump is provided. The method can include providing an intravascular blood pump with a flow cannula including a spiral structure, a sensor and an electrical connection region, applying a conductor structure to a coatable material of the flow cannula, electrically connecting a first portion of the conductor track structure to the sensor and a second portion of the conductor track structure to the electrical connection region and closing the spiral structure using a flexible material where the flexible material can be silicone or polyurethane.

Abstract: The approach presented here relates to a determination appliance (100) for determining a viscosity of a fluid. The determination appliance (100) has at least one determination device (110) and a provisioning device (115). The determination device (110) is designed to determine the viscosity of the fluid and/or a rotational speed (?) of a blade wheel (205) for conveying the fluid by using at least one detected volume flow of the fluid and a detected pressure difference of the fluid. The provisioning device (115) is designed to provide or send a viscosity signal (130) representing the viscosity determined by the determination device (110).

Abstract: A punching device, for punching a lumen and implanting an implant device, includes at least the implant device for punching the lumen and for implantation into the lumen. In addition, the punching device includes an implantation device, a closure device, and an actuation device.

Abstract: The invention relates to a method for detecting a state of wear of a cardiac support system. The method comprises a read-in step and a determination step. During the read-in step, a sensor signal (315) representing an operating state of the cardiac support system is read in. During the determination step, a wear signal (325) is determined using the sensor signal (315) and a comparison rule (320). The wear signal (325) represents the wear condition.

Abstract: The invention relates to a transmitter unit (12) comprising a housing (20), a transmitter coil (18) arranged in the housing (20) for inductively transferring electrical energy to a receiver unit (14) which is provided with a receiver coil (16) and is arranged in the tissue (2) of the body (1) of a patient when the housing (20) having a contact surface (22) is placed on the body (1), and comprising a control device (30) for controlling the operation of the transmitter coil (18). According to the invention, a temperature sensor (26) is provided in the transmitter unit for determining a heating of the tissue (2) of the body (1) caused by the inductive transfer of electrical energy to the receiver unit (14).

Abstract: The invention relates to a magnetic end-face rotating joint (100) for transmitting torques, containing a first joint half (102) which can be connected to a first shaft, and comprising a second joint half (104) which can be connected to a second shaft. The first joint half (102) comprises a first permanent magnet (106) which has the magnet configuration of a Halbach array.

Abstract: The invention relates to a feed line (105) for a pump unit (110) of a cardiac support system (100). The feed line (105) is embodied to guide a fluid flow to a pump unit (110) of the cardiac support system (100). The feed line (105) comprises a feed head portion (130) with at least one introduction opening (140) for introducing the fluid flow into the feed line (105) and a contoured portion (135) with an inner surface contour. The contoured portion (135) is disposed adjacent to the feed head portion (130). An inner diameter of the contoured portion (135) at a first position is greater than the inner diameter at a second position. The inner surface contour has a rounded portion at the second position for reducing the inner diameter.

Abstract: The invention relates to an axial flow pump (102) for a ventricular assist device. The axial flow pump (102) comprises a pump housing (104) for arranging in a blood vessel and a pump rotor (108), which is or can be mounted in the pump housing (104) for rotation about an axis of rotation and which consists of a hub (200) and at least one blade element (110) which is helically wound around the hub (200), at least in portions, and is provided for conveying, in the direction of the axis of rotation (302), a medium to be conveyed. In order to increase the pump efficiency, the blade element (110) has at least one blade section (202) having an undulating blade curvature.

Abstract: The invention relates to a rotor bearing system (1). Said system comprises a housing (80) in which a first permanent magnet (30) is mounted such that it can rotate about a first axis (105). A rotor (70) for conveying a liquid comprises a second hollow-cylindrical permanent magnet (40), which is mounted such that it can rotate about a second axis. The first permanent magnet (30) and the second permanent magnet (40) overlap axially at least partially, wherein the first permanent magnet (30) is disposed offset relative to the second permanent magnet (40). In the axial overlap region (160) of the first permanent magnet (30) and the second permanent magnet (40), the housing (80) is positioned between the two permanent magnets (30, 40).

Abstract: The invention firstly relates to a receiver unit (200), configured to interact for wireless energy transfer with a transmitter unit (100) separate from the receiving unit, said transmitter unit (100) comprising a primary coil (L1) that can be supplied with a supply voltage (UV), wherein the receiver unit (200) comprises a secondary coil (L2) to which a DC link capacitor (CZ) and an energy storage unit (220) are connected by a power converter (210). According to the invention, the receiver unit (200) contains a device (240) for actuating the power converter (210) when a voltage is applied on the DC link capacitor (CZ) for supplying an alternating current (I) flowing through the secondary coil (L2) by actuating the power converter (210) to generate an energy pulse (EP).

Abstract: The invention relates to an energy transfer system for the wireless transfer of energy, having a transmitter unit and a receiver unit separate therefrom, wherein the transmitter unit has a primary coil that is able to be supplied with a supply voltage, and wherein the receiver unit has a secondary coil to which an energy sink is connected via a rectifier, wherein the receiver unit is configured so as to detect a fault case in an energy flow from the secondary coil to the energy sink and, in the fault case, to execute a fault mode (F) having at least one operating parameter (Iout) of the receiver unit that is preferably in a range outside the given specification (B), and in that the transmitter unit is configured so as to recognize the fault mode (F) of the receiver unit and to perform a fault response (N) in response.

Abstract: The invention relates to a magnetic coupling element (100) with a magnetic bearing function. The magnetic coupling element (100) has a drive-side coupling magnet (109) arranged on a drive shaft (106), and also an output-side coupling magnet (115) arranged on an output shaft (112), the output-side coupling magnet (115) being magnetically coupled to the drive-side coupling magnet (109), and finally a bearing magnet ring (118) which is non-rotatably mounted with respect to the drive-side or output-side coupling magnet (109) or (115), a bearing magnet portion (133, 136) of the bearing magnet ring (118) having the same polarity as a coupling magnet portion (127, 130) opposite the bearing magnet portion (136).

Abstract: An impeller (1) for an implantable vascular support system (2) is provided. The impeller includes an impeller body (3) having a first longitudinal portion (4) and a second longitudinal portion (5) forming a first inner rotor (12) having at least one magnet encapsulated in the second longitudinal portion (5). At least one blade (6) formed in the first longitudinal portion (4) is configured to axially convey a fluid upon rotation. A second outer rotor (13) extends axially and includes at least one magnet. The first rotor (12) and the second rotor (13) form a magnetic coupling (14). The magnets of the first and second rotor being arranged to partially axially overlap with an axial offset and are entirely radially offset.