The present disclosure relates to an implantable device for improving the pump function of the heart of a human patient by applying an external force on the heart muscle. The device is provided with a first part having a first surface comprising a ceramic material, and a second part having a second surface comprising a ceramic material.

A cardiac assist device including a sleeve configured to externally wrap around a native, intact heart; a motor, and a drive shaft that connects the motor to the sleeve, wherein, actuation of the motor and the drive shaft provides a synchronized assisting force to a pumping force of the native, intact whole heart, thereby helping contraction and expansion of the heart located within an internal volume defined by the sleeve. Some embodiments relate to a system for synchronizing the cardiac assist device with a heart including the cardiac assist device; a power supply connected to the motor; and an electrical connector-relay configured to receive electrical signals from the pacemaker and to generate actuating signals that are relayed to the motor and the drive shaft, wherein, during operation of the system in a subject, the heart is assisted in contracting synchronously with the pacemaker signal rhythm.

The present invention relates to an implantable device for improving the pump function of the heart of a human patient by applying an external force on a first position of the heart muscle following the heart's contractions. The implantable device comprising a first pump device adapted to assist the pump function of the heart. The pump device comprises a first reservoir, a second reservoir, a fluid connection adapted to fluidly connect said first reservoir with said second reservoir, such that fluid can flow between said first reservoir and said second reservoir.

The present invention relates to an implantable heart help device for assisting the pump function of the heart by exerting an external force on the heart. The device is provided with a first fixating member adapted to be fixate the device to a part of the human body comprising bone, a heart pump device having a surface adapted to contact and exert an external force on the heart, a second fixating member in contact with the heart pump device. The second fixating member is displaceable in relation to the first fixating member for changing the position of the surface of the heart pump device, to allow the surface of the heart pump device to contact and exert the external force on at least two different positions on the heart.

An implantable device for improving the pump function of the heart of a human patient by applying an external force on the heart muscle. The device comprises at least one pump device comprising a heart contacting organ, an operating device for operating the heart contacting organ, and an implantable pressurized fluid system. The fluid system comprises a first implantable chamber adapted to hold a pressurized fluid, wherein said first chamber is adapted to hold a fluid having a high pressure and a second implantable chamber adapted to hold a pressurized fluid, wherein said second chamber is adapted to hold a fluid having a lower pressure. The movement of the heart contacting organ assists the pump function of the heart.

An implantable device for improving the pump function of the heart of a human patient by applying an external force on a first position of the heart muscle following the heart's contractions. The implantable device comprising a first pump device adapted to assist the pump function of the heart. The pump device comprises a first reservoir having a first volume and adapted to varying said first volume, a second reservoir having a second volume and adapted to varying said second volume, a fluid connection adapted to fluidly connect said first reservoir with said second reservoir, such that fluid can flow between said first reservoir and said second reservoir. The reservoir, said second reservoir and said fluid connection form a fully implantable pump device adapted to maintain a fluid in a closed system, when in operation and wherein said fully implantable pump device is adapted to transfer force by transferring fluid from said first reservoir to said second reservoir to directly or indirectly apply an external force on the first position of the heart muscle, following the heart's contractions, for improving the pump function of the heart, when said device is implanted. The implantable device further comprises a sensor sensing muscle contractions of the heart.

An implantable device for improving the pump function of the heart of a human patient by applying an external force on a first position of the heart muscle following the heart's contractions. The implantable device comprising a first pump device adapted to assist the pump function of the heart. The pump device comprises a first reservoir having a first volume and adapted to varying said first volume, a second reservoir having a second volume and adapted to varying said second volume, a fluid connection adapted to fluidly connect said first reservoir with said second reservoir, such that fluid can flow between said first reservoir and said second reservoir. The reservoir, said second reservoir and said fluid connection form a fully implantable pump device adapted to maintain a fluid in a closed system, when in operation and wherein said fully implantable pump device is adapted to transfer force by transferring fluid from said first reservoir to said second reservoir to directly or indirectly apply an external force on the first position of the heart muscle, following the heart's contractions, for improving the pump function of the heart, when said device is implanted. The implantable device further comprises a sensor sensing muscle contractions of the heart.

An implantable device for improving the pump function of the heart of a human patient by applying an external force on the heart muscle. The device comprises at least one pump device comprising a heart contacting organ, an operating device for operating the heart contacting organ, and an implantable pressurized fluid system. The fluid system comprises a first implantable chamber adapted to hold a pressurized fluid, wherein said first chamber is adapted to hold a fluid having a high pressure and a second implantable chamber adapted to hold a pressurized fluid, wherein said second chamber is adapted to hold a fluid having a lower pressure. The movement of the heart contacting organ assists the pump function of the heart.

Methods for synchronizing the actions of a pulsatile cardiac assist device with a dysfunctional heart using a cardiac pacemaker. Aspects include receiving a signal from the pacemaker and actuating the pulsatile cardiac assist device in response to the signal from the pacemaker to either help push blood out of the heart during systole or to help suck blood from the atria during diastole.

A cardiac assist device including a sleeve configured to externally wrap around a native, intact heart; a motor, and a drive shaft that connects the motor to the sleeve, wherein, actuation of the motor and the drive shaft provides a synchronized assisting force to a pumping force of the native, intact whole heart, thereby helping contraction and expansion of the heart located within an internal volume defined by the sleeve. Some embodiments relate to a system for synchronizing the cardiac assist device with a heart including the cardiac assist device; a power supply connected to the motor; and an electrical connector-relay configured to receive electrical signals from the pacemaker and to generate actuating signals that are relayed to the motor and the drive shaft, wherein, during operation of the system in a subject, the heart is assisted in contracting synchronously with the pacemaker signal rhythm.