Transcript Syringes

Syringes
Jorge Prieto Peinador
50622
Index
 Designers.
 History.
 Design.
 Problems faced, why syringes?
Designers
 Charles Gabriel Pravaz (1791 - 1855).
 1851: Pravaz syringe
 screw mechanism.
Designers
 Alexander Wood (1817 - 1884).
 1853: New syringe design
 plunger-stem pull and push system.
Designers
 Manuel Jalón Corominas (1925 - 2011).
 Late 80s: first polypropylene
hypodermic syringe for single use.
History
 Before the syringe:
 9th century: Ammar Ali al-Mawsili.
 Remove cataracts by suction.
 1656: Christopher Wren rudimentary
syringe.
 Bird feather and an animal bladder
 1809: Francois Magendie, possibility to
introduce medicines through the skin.
History
 The appearance of the syringe
 1851: Pravaz syringe.
 1853: Wood’s desing.
 Designed the hollow metal needle (1854)
 War, drugs, AIDS.
 Late 80s: Jalón’s one single use syringe.
Design
 Materials:
 Polypropylene.
 Glass.
 Stainless steel
 trigger system.
Design
 Parts:
 Tip
 Luer tip.
 catheter tip.
 Luer lock tip.
 Barrel.
 Plunger rod.
Problems faced, why syringes?
 How to administrate medicines through
the skin?
 Different designs:
 from the screw mechanism to the plungerstem pull and push system.
 Lack of hygiene and unsafe disinfection
 Increased drug addiction and blood
diseases