Heart support net and implantable cardioverter defibrillator

A heart support net comprising:

• a reception part configured to receive a heart and to be attached to an outer side of a ventricle, the reception part comprising:
• a first conductive part and a second conductive part each knitted into mesh with a conductive yarn;
• and
• a non-conductive part knitted into mesh with a non-conductive yarn,
• the non-conductive part being disposed between the first conductive part and the second conductive part,
• the first conductive part corresponding to a cardiac base side on the outer side of the ventricle,
• the second conductive part corresponding to a cardiac apex side on the outer side of the ventricle,
• the first conductive part having a height of approximately 25% of a height of the ventricle,
• the second conductive part having a height of approximately 35% of the height of the ventricle, and
• the non-conductive part having a height of approximately 40% of the height of the ventricle,
• wherein the heart support net is configured to only contact the heart without generating a touching pressure when a left ventricular end-diastolic pressure (LVEDP) is 10 mmHg or less, to generate a left ventricle surface touching pressure of 5 mmHg or more in a mode of heart failure wherein LVEDP ≥18 mmHg and classified as heart failure Forrester class IV, and to generate a touching pressure of 10 mmHg when the LVEDP is 30 mmHg.

An implantable cardioverter defibrillator comprising:

• a heart support net comprising a reception part configured to receive a heart and to be attached to an outer side of a ventricle, the reception part comprising:
• a first conductive part and a second conductive part each knitted into mesh with a conductive yarn;
• and
• a non-conductive part knitted into mesh with a non-conductive yarn,
• the non-conductive part being disposed between the first conductive part and the second conductive part,
• the first conductive part corresponding to a cardiac base side on the outer side of the ventricle,
• the second conductive part corresponding to a cardiac apex side on the outer side of the ventricle,
• the first conductive part having a maximum height of approximately 25% of a height of the ventricle,
• the second conductive part having a maximum height of approximately 35% of the height of the ventricle, and
• the non-conductive part having a maximum height of approximately 40% of the height of the ventricle;
• and
• a defibrillator body configured to be coupled to the heart support net.

An implantable cardioverter defibrillator comprising:

• a heart support net comprising a reception part configured to receive a heart and to be attached to an outer side of a ventricle, the reception part comprising:
• a first conductive part and a second conductive part each knitted into mesh with a conductive yarn;
• and
• a non-conductive part knitted into mesh with a non-conductive yarn,
• the non-conductive part being disposed between the first conductive part and the second conductive part,
• the first conductive part corresponding to a cardiac base side on the outer side of the ventricle,
• the second conductive part corresponding to a cardiac apex side on the outer side of the ventricle,
• the first conductive part having a height of approximately 25% of a height of the ventricle,
• the second conductive part having a height of approximately 35% of the height of the ventricle, and
• the non-conductive part having a height of approximately 40% of the height of the ventricle;
• and
• a defibrillator body configured to be coupled to the heart support net,
• wherein the heart support net is configured to only contact the heart without generating a touching pressure when a left ventricular end-diastolic pressure (LVEDP) is 10 mmHg or less, to generate a left ventricle surface touching pressure of 5 mmHg or more in a mode of heart failure wherein LVEDP ≥18 mmHg and classified as heart failure Forrester class IV, and to generate a touching pressure of 10 mmHg when the LVEDP is 30 mmHg.