Medicament applicator

摘要

Apparatus and methods for inserting a medicament into a body cavity are described. The apparatus comprises an elongate tube with a plunger rod therein. The plunger rod has at least one projection which cooperatively interacts or engages with at least one discontinuity on the inside of the elongate tube so that proximal movement of the plunger rod with respect to the elongate tube expels the medicament into the body cavity.

主权项

1. An assembly for introducing a medicament into a body cavity, the assembly comprising:
an elongate tube having a proximal end, a distal end, an outer surface, an inner surface and an opening extending from the distal end to the proximal end, the proximal end adapted to support a medicament, the elongate tube comprising at least one radial discontinuity adjacent the distal end and extending inwardly from the inner surface of the tube; and a plunger rod having an elongate body with a distal end and a proximal end, the plunger rod extending from the proximal end of the elongate tube to the distal end of the elongate tube and adapted to be slidably engaged within the tube, the plunger rod comprising at least two axially spaced projections adjacent the distal end of the elongate body that cooperatively engages with longitudinally opposing surfaces of each of the at least one radial discontinuity.