NON GRINDED NEEDLE TIP-GEOMETRY FOR AN INJECTION NEEDLE

NON GRINDED NEEDLE TIP-GEOMETRY FOR AN INJECTION NEEDLE

The present invention relates to an injection needle (1) for injecting or retracting fluid through the skin of a mammal body and more particularly to non-grinded needle tip-geometry for an injection needle (1) for a reduced penetration force and reduced bleeding. The injection needle (1) comprises o...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: JAKOBSEN, HENNING
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
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
HUMAN NECESSITIES
HYGIENE
MACHINE TOOLS
MAKING NEEDLES, PINS OR NAILS OF METAL
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
MEDICAL OR VETERINARY SCIENCE
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
PUNCHING METAL
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:The present invention relates to an injection needle (1) for injecting or retracting fluid through the skin of a mammal body and more particularly to non-grinded needle tip-geometry for an injection needle (1) for a reduced penetration force and reduced bleeding. The injection needle (1) comprises of a needle shaft (8) having a centrally located bore disposed along a longitudinal axis (12) connected to a hub (9) by connecting means. The sharpened distal end (11) of the needle shaft (8) has an exit port (13) and two bevels (16,17) surrounding the exit port (13). The bevels (16,17) converge into a tip at the distal end to form a cutting edge (18) and at the proximal end into a heel (19). The bevels (16,17), cutting edge (18) and heel (19) together form the piercing edge that is sharp and continuous without any grinding transitions.