Systems and methods for acute treatment to limit intracerebral hemorrhage growth

A method for hemostasis of a perforating penetrating artery branching from a mid-cerebral artery (MCA) at an ostia of the perforating penetrating artery and related intracerebral hemorrhage (ICH), comprising:

• navigating an occlusion device in a catheter-based endovascular approach into the MCA, the occlusion device having,
• i) an elongate member with a proximal end and a distal end,
• ii) an expandable member fixed to the distal end of the elongate member, the expandable member sized for insertion into the MCA and having a length sufficient to extend across the ostia, a flow path for blood provided from a proximal side of the expandable member to a distal side of the expandable member, and
• iii) a semi-permeable contacting member about the expandable member;
• and then
• deploying the occlusion device into contact with a wall of the MCA adjacent the ostia of the perforating penetrating artery to temporarily reduce blood flow from the MCA to the perforating penetrating artery and continuing to allow a portion of blood flow within the flow path to pass through the semi-permeable contacting member to the ostia and into the perforating penetrating artery until hemostasis is achieved,
• while maintaining distal tissue blood perfusion through the MCA via the flow path from the proximal side of the expandable member to the distal side of the expandable member.