A needle apparatus

Details A needle apparatus A needle apparatus

A - Human Necessities

61

M

A61M 25/06 (2006.01) A61B 5/153 (2006.01) A61M 5/158 (2006.01) A61M 5/32 (2006.01)

Patent

CA 2346640

A needle apparatus (10) has a thin walled catheter (18) enclosing a tubular needle (20) having a sharp point (22), the catheter (18) and the needle (20) being relatively moveable longitudinally a short distance, from a first position where the needle (20) projects from the catheter (18) and to a second position at which the sharp point (22) is located within the catheter (18). The needle (20) remains in the fluid pathway of the needle apparatus (10) at all times. The needle apparatus (10) is arranged to pierce tissue when the catheter (18) and the needle (20) are in the first position.

Dispositif à aiguille (10) comprenant un cathéter (18) à paroi mince, entourant une aiguille tubulaire (20) à pointe aiguisée (22). Le cathéter (18) et l'aiguille (20) peuvent se déplacer longitudinalement l'un par rapport à l'autre sur une courte distance, de façon à passer d'une première position, dans laquelle l'aiguille (20) se projette depuis le cathéter (18), à une seconde position dans laquelle la pointe (22) est située à l'intérieur dudit cathéter (18). L'aiguille (20) reste en permanence à l'intérieur du trajet fluidique du dispositif (10). Celui-ci est conçu pour percer le tissu quand le cathéter (18) et l'aiguille (20) sont dans la première position.

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