An implantable ultrasonic conduction and drug delivery apparatus (1, 4), comprising a drug containing component (10, 40) and a shell-shaped ultrasonic scattering component (12, 42). The shell-shaped ultrasonic scattering component (12, 42) is fixed onto the bottom of the drug containing component (10, 40). The drug containing component (10, 40) has multiple connected through holes (108, 408) formed on the bottom (106, 406). The multiple connected through holes (108, 408) communicate the bottom (106, 406) of the drug containing component (10, 40) with the shell-shaped ultrasonic scattering component (12, 42). The shell-shaped ultrasonic scattering component (12, 42) has multiple scattering through holes (122, 422). The shell-shaped ultrasonic scattering component (12, 42) is cooperatively placed in a body cavity (20) of a patient. A drug is injected into a containing space (104, 404) of the drug containing component (10, 40). The drug is conveyed to the body cavity (20) by means of the multiple scattering through holes (122, 422) of the shell-shaped scattering component (12, 42). Directional ultrasonic waves are transferred to the multiple scattering through holes (122, 422) of the shell-shaped ultrasonic scattering component (12, 42), and are then uniformly scattered to tissue fluid in the body cavity (20), all surfaces of the inner wall of the body cavity (20), and all tissues adjacent to the surfaces of the inner wall of the body cavity (20) by means of the multiple scattering through holes (122, 422). The apparatus can improve the drug administration efficiency.L'invention concerne un appareil d'administration de médicament et de conduction ultrasonore implantable (1, 4), comprenant un composant contenant un médicament (10, 40) et un composant de diffusion ultrasonore en forme de coque (12, 42). Le composant de diffusion ultrasonore en forme de coque (12, 42) est fixé sur le fond du composant contenant un médicament (10, 40). Le composant contenant un médicament
