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US 12,622,723 B2Granted
Non-coring needle with reversed sharp edge
AssigneeBentley InnoMed GmbH
InventorsYossi Pesis, Dan Rottenberg
Life of this patent
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Abstract
A piercing device includes a tube (10) formed with a needle tip (12). The needle tip (12) includes a bevel having a bevel length (BL) that extends at a bevel angle from a base of a heel (14) to a sharp distal, radially outer edge of the needle tip (12). A reversed edge (17) is formed as a reversed edge angle on the heel (14) of the bevel. The bevel angle is an acute angle, and the reversed edge angle is an obtuse angle.
Claims9
A piercing device comprising:
- a tube (10) formed with a needle tip (12), said needle tip (12) comprising a bevel having a bevel length (BL) that extends at a bevel angle from a base of a heel (14) of the bevel to a sharp distal, radially outer edge of said needle tip (12);
- and
- a reversed edge (17) including a planar surface on the heel (14) of the bevel and rounded edges (19) at both an internal heel side of the bevel and an internal needle piercing side of the bevel, wherein a reversed edge angle between an outer surface of the tube at the heel side of the bevel and the planar surface is an obtuse angle.
Dependencies are inferred from the claim text.