Answered by Shaykh Faraz Rabbani
She had to insert an instrument and also I think her fingers to check where my injuries are inside. Did this break my fast?
Answer:
قال شيخ الإسلام الكمال ابن الهُمام (رحمه الله تعالى) في فتح القدير: لو أدخل الإصبع في دبره أو فرجها الداخل لا يفسد الصوم إلا أن تكون مبلولة بماء أو دهن على المختار.
Mere insertion of the finger or an instrument in the vagina does not invalidate the fast, unless it is wetted with water or oil [or any other substance that will remain within]. (Ibn al-Humam, Fath al-Qadir, a commentary on Marghinani’s Hidaya)
And Allah alone gives success.
Faraz Rabbani