وَمَنْ احْتَقَنَ، أَوِ اسْتَعَطَ، أَوْ أَقْطَرَ فِي أُذُنَيْهِ، أَوْ دَاوَى جَائِفَةً، أَوْ آمَّةً بِدَوَاءٍ فَوَصَلَ إِلَى جَوْفِهِ، أَوْ دِمَاغِهِ: أَفْطَرَ.
Translation: Whoever receives an enema, instills medication into the nose or ears, or treats a penetrating abdominal or cranial wound with medicine that reaches the internal cavity or head cavity, invalidates the fast.
The clause names several distinct circumstances: rectal enema, nasal instillation, ear instillation and treatment of two kinds of deep wounds. It mentions medicine reaching the body cavity or head cavity, especially important to the wound discussion.
These are classical legal descriptions rather than an all-purpose classification of contemporary medical interventions. Each element is analyzed separately below.