A medical device self-aligning connector is disposed on a medical device cover, and has a moving connection body, passing through a hole formed in the medical device cover, and having multiple connection elements that electrically connect to a target component. The connector further has a base that supports the moving connection body, and an elastic body that press-connects the moving connection body to the medical device cover. The moving connection body is designed to cause a certain gap to exist between the moving connection body and the hole, and moves within the range of the gap.