Innretning for a adskille forbindelsesenden pa en injeksjonskanyle fra toppen pa et injeksjonsinstrument

• Main Authors: MOULIN JEROME, BOSSET GREGOIRE, SOLDINI LAURENT, BERGERON LUC
• Format: Patent
• Language: Norwegian
• Published: 23.05.2011
• Subjects: CHAIRS FOR DENTISTRY; DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; FUNERAL DEVICES; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; OPERATING TABLES OR CHAIRS; TRANSPORT OR ACCOMODATION FOR PATIENTS

The connecting end of the hypodermic needle is so designed that it can be attached to and then disconnected from the tip of an injection instrument by pressure, that is, an axial tractional force exerted between the said needle and the said injection instrument. The extraction device has an opening delimited by locking elements forming one piece with elastic pieces so as to allow its diameter to vary between a minimum diameter and a maximum diameter at least equal to the diameter of the said connecting end and at least one piece associated with the said locking elements for the purpose of converting an axial force exerted on the said piece into at least one radial component capable of being applied to the said elastic pieces so as to deform them radially in order to increase the diameter of the said opening when axial pressure is exerted by the said connecting end.