What is the ruling on medically injecting a man's semen or gametes directly into his wife's womb due to his inability to deliver his seminal fluid through natural intercourse?

Scholarly opinions have differed regarding the ruling on the aforementioned case, falling between permissibility, prohibition, and reservation. The researcher has favored permissibility, but with certain conditions: a compelling need due to the impossibility of natural conception, a strong presumption of no harm from the procedure, and no confusion of lineages. This ruling also applies to taking sperm from the husband and an egg from his wife, fertilizing them, and returning them to the womb, provided the same conditions are met.