Electric heating – Metal heating – Cutting or disintegrating
Patent
1995-11-30
1997-10-14
Evans, Geoffrey S.
Electric heating
Metal heating
Cutting or disintegrating
B23K 1122, A61G 1200, A61L 1100
Patent
active
056768591
ABSTRACT:
Roller electrodes 5 and 6 are rotated by DC motor 2. Power is supplied to the electrodes 5 and 6 through brushes 10a and 10b. If the tip of an injection needle N is brought into contact with first roller electrode 5, and a part slightly away from the tip of injection needle N toward the root is brought in contact with roller electrode 6, the part of the injection needle N sandwiched between electrodes 5 and 6 fuses because of the Joule heat generated. If the syringe is pushed so that the injection needle N is always in contact with electrodes 5 and 6, almost the complete injection needle N can be fused. The first roller electrode 5 has a tapered form; the width of the gap between electrodes 5 and 6 can be varied; therefore, a position where the gap suits the diameter of the needle can be selected. Consequently, maintenance work becomes easy. Also, stable disposal of the needles is possible irrespective of the diameter of the injection needle.
REFERENCES:
patent: 4877934 (1989-10-01), Spinello
patent: 4961541 (1990-10-01), Hashimoto
patent: 5091621 (1992-02-01), Butler
patent: 5138124 (1992-08-01), Kirk et al.
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patent: 5365029 (1994-11-01), Makihara
patent: 5545869 (1996-08-01), Piva
patent: 5548095 (1996-08-01), Cornell
Evans Geoffrey S.
Oki Customer Advanced-Technology Co., Ltd.
Taiyo Elecs Co., Ltd.
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