| http://www.w3.org/ns/prov#value | - No. 08/228,551 filed Apr. 15, 1994, now U.S. Pat. No. 5,645,537, consisting of a rigid elongate tubular member 16 formed of a suitable material such as stainless steel having a length of 2 to 25 centimeters and preferably various sizes of 3 cm, 6 cm, 10 cm, 15 cm and 20 cm and of suitable diameters as for example 15-25 gauge for the various sizes and preferably 23 gauge.
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