a value of 0 9 n was measured for the complete penetration force needed for insertion of the needle into the tissue in the case of an end portion configured in this way the needle tip and the cutting edge of the needle are strong enough to ensure that when the needle penetrates into a tissue they are not subject to any bending or to any other change the penetration forces in a needle according to the prior art for example the needle from therumo medical corporation which has a smaller cross sectional surface area in the needle region than do the needles according to the embodiments of the present invention have values of 0 5 n to 0 7 n for the initial penetration force and 0 7 n to 0 9 n for the complete penetration force a suture needle for example with a diameter of 0 6 mm requires a full penetration force of 2 5 n and a widely differing initial penetration force therefore a needle according to the present invention while having approximately the same cross section as a suture needle and an even larger cross section compared to the needle from therumo medical corporation requires a lower penetration force or equally high penetration force respectively the embodiments of the present invention have been described and shown in the drawing using the.