Deobstruct

[…] we humbly desire of God […] [that] he will be pleas’d to convey to them [the people of Ireland] the notices of their danger, and their sin, and to deobstruct the passages of necessary truth to them,

[…] such as carry off the Foeces and Mucus, deobstruct the Mouths of the Lacteals, so as the Chyle may have a free Passage into the Blood.

[…] he exhibited an instrument which he had invented for deobstructing the Fallopian tubes in such cases.