CENTRO DI DOCUMENTAZIONE SUI DISPOSITIVI MEDICI

Luca Martinelli The self-aspirating dental syringe Publication no. 3 - 31st October 2012 1. THE SELF-ASPIRATING SYRINGE The self-aspirating syringe is so called because the aspiration takes place "automatically", without any need for retracting the plunger. There are at least two types of self-aspirating syringes, a standard and a "disk" model. 1.1 Standard self-aspirating syringe   Pic. 1 1.2 Disk self-aspirating syringe The structure is identical to the previous one, with the difference that the disk is integral with the vial-holder cylinder, but completely independent with respect of the plunger (It has a through hole that allows the plunger to slide inside it).   Example of a type of self-aspirating syringe with disk. Pic. 2 1.3 Loading The loading is substantially identical to the side-loading syringes except that the vial holder cylinder is to be retracted in order to have the space necessary to insert th...

1 CLASSIFICATION AND MAIN PARTS OF DENTAL ANAESTHETIC CARTRIDGE SYRINGES Luca Martinelli Basics of dental anaesthetic cartridge syringes Publication no. 1 - 31st October 2012   1.  CLASSIFICATION AND MAIN PARTS OF DENTAL ANAESTHETIC CARTRIDGE       SYRINGES The dental cartridge syringes are used to perform local anaesthesia. Requirements and test methods of syringes are specified in EN ISO 9997 rule. Dental cartridge syringes are so called as they use an anaesthetic placed in a tubular vial whose appearance resembles a firearm cartridge. With these syringes it is possible to perform intra-oral anaesthesia such as: 1   by infiltration (submucosa, para-periosteal, intra-osseous, intra-ligament, intra-papillary); 2   by conduction (truncal or plexus). 1.1 Classification according to the type of aspiration The dental cartridge syringes are classified according to the following types: Type 1: non-aspirat...