Projectile for delivery of a tranquilliser

F - Mech Eng,Light,Heat,Weapons – 42 – B

Patent

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Details

F42B 12/54 (2006.01) F42B 12/34 (2006.01)

Patent

CA 2374789

A projectile mainly for drug delivery comprises a tubular body casing (1) which defines a cavity (2) for containment of a tranquillising drug. The casing has an end plug (3) which coaxially supports a hollow needle (4) projecting forward through an ogival nose cap (5). The delivery end (6) of the needle (4) projects a short way beyond the cap (5). Located around the needle (4) towards the tip of the nose cap (5) is a gas producing detonator (7) fired by an impact fuse (8). Attached to the detonator (7) and the needle (4) is the neck (9) of an inflatable bag (10) of which an opposed end (11) is attached to the plug (3). Following discharge from the weapon, the bag (10) expands and prevents excess penetration whilst spreading the impact energy over a wide area.

La présente invention concerne un projectile servant principalement à l'administration de médicaments, comprenant une enveloppe tubulaire (1) qui définit une cavité (2) destinée à contenir un tranquillisant. L'enveloppe comprend un obturateur (3) qui supporte de manière coaxiale une aiguille creuse (4) se prolongeant vers l'avant à travers une calotte d'extrémité ogivale (5). L'extrémité d'administration (6) de l'aiguille (4) dépasse sur une courte distance de la calotte (5). Au voisinage de l'aiguille (4), au niveau de la pointe de la calotte d'extrémité (5), se trouve un détonateur de production de gaz (7) déclenché par un allumeur à impact (8). Fixé au détonateur (7) et à l'aiguille (4) se trouve le col (9) d'une poche gonflable (10) dont l'extrémité opposée (11) est reliée à l'obturateur (3). Après décharge de l'arme, la poche (10) se gonfle et empêche l'excès de pénétration alors que l'énergie d'impact se propage sur une zone étendue.

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