HOW IT'S MADE SCALPELS
(From - Discovery / Science Channel's "How It's Made" Scalpels episode)
In this interesting video you can see all the manufacturing processes.
1 CLASSIFICATION AND MAIN PARTS OF DENTAL ANAESTHETIC CARTRIDGE SYRINGES
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...
