Patent ID: 8870826

Claim:
A device for making an incision in the tympanic membrane, withdrawing fluid from the tympanic cavity or middle ear and administering a medicament to the tympanic cavity or middle ear, said device comprising a barrel shaped casing having a rotatable end turret adapted to engage tubular elements: (a) a first actuating trigger which activates a first tubular element in which is disposed a spring-loaded, hollow piercing shaft that is extendible from said barrel shaped casing said shaft having a first end which is adapted to penetrate a tympanic membrane when it is extended from said barrel shaped casing by the action of said spring and a second internal end which is adapted to engage an end of a tubular vacuum cartridge having a seal wherein the spring-loaded, hollow piercing shaft, having a first end which is adapted to penetrate a tympanic membrane when it is extended from said barrel shaped casing, has a stop on a second end that prevents said hollow piercing shaft from being extended beyond said turret; (b) said tubular vacuum cartridge having a seal, being positioned in said barrel shaped casing and having an axial spring for providing axial rotation in said barrel, when said hollow piercing shaft is completely extended from said barrel casing, said tubular vacuum cartridge having a seal, said vacuum cartridge being adapted to axially move into register with said second internal end of said piercing shaft to expose said hollow piercing element to the effect of vacuum in said tubular vacuum container in order to aspirate fluid from said tympanic cavity or middle ear; (c) a second trigger actuating axial spring loaded tubular medicament chamber having a seal, which is positioned in said barrel casing and is adapted to rotate under the action of said second trigger and engage the second internal end of said piercing element and release medicament into the tympanic cavity or middle ear.