Skull implant type medication injection port

A skull implant type medication injection port comprising:

• a mounted portion which is placed on the upper section of a port insertion hole formed in a patient's cranium and comprises a medication inlet formed on a top surface;
• a medication injection diaphragm configured to seal the medication inlet of the mounted portion into which an injection needle for injecting a medication is inserted;
• a medication storage portion which is coupled with a bottom of the mounted portion and stores the medication injected through the medication injection diaphragm;
• a medication discharge pipe connected to the medication storage portion to discharge the medication stored in the medication storage portion;
• and
• a rib which is formed on a perimeter between the mounted portion and the medication storage portion and has a diameter larger than an inner diameter of the port insertion hole,
• wherein a height ratio of the mounted portion to the medication storage portion based on the rib is 1:0.5 to 0.6, wherein a height of the mounted portion is 4 to 7 mm, and a height of the medication storage portion is 2 to 4.2 mm.