Abstract: A self refilling syringe for administering medicinal fluid to a patient including a removable syringe body having a plunger chamber formed at its front end with a connector port. A plunger is received in the chamber from an open end opposite the connector port and includes a plunger head on one end and a piston on the other end. The forward end of the syringe body includes a hub device mounted on the front end of the syringe body and is formed with a filler port and an applicator port in communication with the connector port. A filler check valve and an applicator check valve are disposed in the respective filler and applicator ports. Upon application of a positive pressure to the filler and applicator check valves from the chamber, the applicator check valve closes and the filler check valve opens to discharge fluid through the applicator port.

Abstract: A vibrating injection device includes a housing formed with an interior chamber for releasably housing a conventional syringe therein and further including an opening on one end thereof. A syringe vibrating motor is also disposed in the interior chamber adjacent the syringe to vibrate same. A plunger drive motor is housed in the interior chamber and is connected to the plunger of the syringe to manipulate the plunger to expel the contents of the syringe through the needle.

Abstract: There is disclosed a method for the prevention of osteitis and for the prevention of atrophy of alveolar bone, which comprises embedding an implant into a boney cavity such as a cystic cavity or an alveolus after a tooth extraction. The implant is a body of a tissue-compatible material and has a smooth unbroken exterior surface defining a bulbous, gibbous shape which generally follows the contour of the cavity. It is important that the material of the implant be inert to the body. The implant can be employed in cavities which are too large to permit the normal primary and secondary healing processes to fill the cavity with trabecular bone tissue. In the preferred embodiment, the invention is applied to the prevention of atrophy of alveolar bone following the extraction of a tooth. In this application, the implant is placed in the socket following removal of the tooth. The size and placement of the implant are sufficient to locate the occlusal end of the implant approximately 3 to 4 mm.