14 results about "Cardiac support" patented technology

To provide suitable devices, systems, and methods for percutaneous pneumatic cardiac support. [Solution] The cardiac support system includes a pneumatic effector implanted beneath the pericardium and across the myocardial surface covering the patient's left ventricle. A port receives an implanted, percutaneously introduced cannula. The port is connected to supply the drive gas received from the cannula to the pneumatic effector. An external drive unit includes a pump assembly and a control circuit that operates the pump to activate the pneumatic effector in response to the patient's sensed cardiac rhythm. A connecting tube has a pump end connected to the pump and a percutaneous port connection end attached to the implantable port.

A pump is configured to be received within a heart. The pump has a shroud having an inlet and an outlet. An impeller is positioned within the shroud. The impeller is configured to effect flow through the shroud from the inlet to the outlet. The impeller can have a hub rotatable about a rotational axis; and a plurality of vanes extending radially from the hub.

A rotor for a cardiac support system is disclosed. The rotor is assembled or can be assembled from at least four shell elements to form a hollow cylinder and / or on a shaft, wherein the shell elements are magnetized or can be magnetized alternately in magnetization direction which are oppositely directed or are orthogonal, so as to form a magnetized body having at least four magnetic poles.

The invention relates to an apparatus (100) for attaching a cardiac support system to an insertion device, wherein the apparatus (100) is shaped to releasably couple the cardiac support system to the insertion device. The apparatus (100) has at least one main body (105), in particular a tubular main body (115), and a clamping device (110) with at least one clamping wing (115). The clamping device (110) is designed to mechanically couple the cardiac support system to the insertion device in an attachment state and to release the cardiac support system from the insertion device by displacing and / or flipping open the at least one clamping wing (115) in a release state.

The disclosure relates to an axial flow heart pump for medical support of a patient. The heart pump can have an impeller housed in an impeller housing. The impeller can have a radius ri and can be configured to rotate about a longitudinal axis. The impeller housing can have an outer radius rh about the longitudinal axis. The impeller housing can have a plurality of longitudinal struts spaced circumferentially to define a plurality of outlet openings. Each of the plurality openings can have an opening arc width less than or equal to a maximum opening arc width wo. Each of the plurality of longitudinal struts can have a width greater than or equal to a minimum width ws. The maximum opening arc width wo can be small enough to prevent a straight object outside of the impeller housing from contacting the impeller.

The invention relates to a sensor head device for a heart support system, wherein the sensor head device has at least one sensor carrying element, wherein the sensor carrying element has at least one sensor cavity for accommodating at least one sensor and / or at least one signal transmitter cavity for accommodating at least one signal transmitter.

A rotor bearing system for a minimally invasive miniaturized percutaneous mechanical circulatory support system. The rotor bearing system can include a press-fit connection between an inlet tube and an impeller cage. The inlet tube can be made of a flexible material, such as nitinol, such that it can deform around the impeller cage and exert radially inward force to keep the system intact.

The invention relates to a line device (105) for conducting a blood flow for a heart support system. The line device (105) has a main part (205), and the main part (205) has a first attachment section (210) at a first end for attaching the line device (105) to a head unit of the heart support system and a second attachment section (215) at a second end for attaching the line device (105) to an outlet unit of the heart support system (100). The attachment sections (210, 215) are shaped so as to be connectable in a form-fitting and / or force-fitting manner. The main part (205) has a structured section (220) with at least one stiffening recess (225) between the attachment sections (210, 215), the at least one stiffening recess (225) being shaped so as to change the stiffness of the main part (205).

Methods and apparatus for monitoring operation of a purge system of a cardiac support system are provided. The method includes determining, using at least one computer processor, a first baseline value for a purge flow rate signal associated with the purge system based, at least in part, on a purge flow rate signal associated with the purge system and a purge pressure signal associated with the purge system, and outputting via a user interface associated with the cardiac support system an indication of an alarm when a first value of the purge flow rate signal is less than a first threshold value, wherein the first threshold value corresponds to a first percentage of the first baseline value.

A cardiac support device comprising an implant with a shell (21), wherein the cardiac support device is an active cardiac support device comprising at least one expandable unit (23), wherein the shell (21) has a structured surface (22) that promotes tissue ingrowth, wherein the structured surface is located on the outer, non-cardiac surface of the shell, and wherein the tissue-stiffened shell (21) forms a support for the at least one expandable unit (23).

Devices, systems, and methods for warming the patient during an ECLS procedure. Depending on the specific need (heart and lung support or pure heart support) the patient may be warmed via a heat exchanger in which the patient bloods comes into close—indirect—contact with a warming fluid or, in a pure Heart Assist procedure, by directly warming the blood of the patient. The proposed solution to both warming methods described above is a centrifugal pump with an integrated heating which has a detachable pump head. The invention allows for a smaller design, simpler handling, using a sterile warming fluid with no air contact, turbulence enhanced heat transfer and includes inherent safety aspects for ECLS patients.

The invention relates to a motor housing module (110) for sealing a motor compartment of a motor of a heart support system. The motor housing module (110) has at least one feed-through portion (205), at least one feed-through line (210), and at least one contact pin (215). The feed-through portion (205) is designed to establish an electrical connection between the heart support system and a connection cable in order to externally contact the heart support system. The at least one feed-through line (210) is embedded in the feed-through portion (205) and extends through the feed-through portion (205). The feed-through line (210) can be connected to the motor and to the connection cable. A first end of the at least one contact pin (215) is embedded in the feed-through portion (205) and a second end of the contact pin (215) projects from the feed-through portion (205) on a side facing away from the motor compartment. The second end of the contact pin (215) can be connected to a sensor line to at least one sensor of the heart support system and to the connection cable.

Devices, systems, and methods for warming a patient during an ECLS procedure. Depending on a particular need (cardiac and pulmonary support or pure cardiac support), the patient may be warmed by a heat exchanger in which the patient's blood is in intimate-indirect-contact with the warming fluid, or in a pure cardiac assist procedure, the patient's blood is warmed directly. According to the suggested scheme of the two heating methods, the centrifugal pump with the integrated heating device is provided, and the centrifugal pump is provided with a detachable pump head. The invention allows for smaller design, simpler handling, use of sterile warming fluid without air contact, turbulence enhanced heat transfer, and includes intrinsic safety aspects for ECLS patients.

A heart support apparatus includes a heart wrap having a shape configured to conform with a heart of a patient. The heart wrap includes four inflatable compartments, each inflatable compartment is configured to cover one of a pair of atriums and a pair of ventricles. The apparatus includes a negative charge pad configured to deliver an electrical stimulus to the heart and a positive charge pad configured to receive the electrical stimulus. The negative and the positive charge pads are connected to a power source through negative and positive lead cables, respectively. An external device with four piston pumps is used to circulate fluids to the inflatable compartments. A first suction tube and a second suction tube remove a first fluid and a second fluid, respectively, from the heart wrap. A controller with program instructions controls the piston pumps.