Cranial spring apparatus and methods

A bioresorbable cranial spring comprising:

• a first arm and a second arm, each of the first arm and the second arm joined at a center portion, wherein the first arm comprises a first end portion and the second arm comprises a second end portion, wherein a gap is disposed between the first end portion and the second end portion;
• wherein each of the first arm and the second arm has a first height and a first width;
• and
• wherein one or more of the first arm or the second arm comprises an H-configuration cross-section configured to increase a surface area-to-volume ratio of the bioresorbable cranial spring relative to a rectangular cross-section having the first height and the first width.

A bioresorbable cranial spring comprising:

• a first arm and a second arm, each of the first arm and the second arm joined at a center portion, wherein the first arm comprises a first end portion and the second arm comprises a second end portion, a gap disposed between the first end portion and the second end portion;
• and
• a first foot portion disposed at the first end portion, and a second foot portion disposed at the second end portion;
• wherein a first bone abutment surface of the first foot portion is sized and shaped to engage a first skull bone, and a second bone abutment surface of the second foot portion is sized and shaped to engage a second skull bone, wherein the first bone abutment surface has a first width and the second bone abutment surface has a second width;
• wherein the first foot portion is configured to engage an edge of the first skull bone along the first width, and the second foot portion is configured to engage an edge of the second skull bone along the second width;
• wherein each of the first width and the second width is in a range of 4 mm to 15 mm;
• and wherein the first width of the first bone abutment surface is in a range of 1.5 to 7.5 times greater than a first height of the first bone abutment surface, and the second width of the second bone abutment surface is in a range of 1.5 to 7.5 times greater than a second height of the second bone abutment surface;
• and
• wherein the bioresorbable cranial spring comprises a bioresorbable material and is configured to dissolve over a resorption period after implantation within a patient.