"The abolishment of pain in surgery is a chimera. It is absurd to go on seeking it...knife and pain are two words in surgery that must forever be associated in the consciousness of the patient."
Dr. Alfred Velpeau, French surgeon ; 1839
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| Number | Title | Issue Date |
| 7213589 | Compressed-gas gun A compressed gas injection device includes a projectile course for receiving and accelerating projectile bodies, a compressed gas housing which is connected to the projectile course and which is divided up into a compressed gas chamber and a working chamber by a par... | 05/08/2007 |