| 摘要 |
THERE IS PROVIDED A LIGATION INSTRUMENT WHICH HAS A PLURALITY OF LIGATION RINGS AND IS CAPABLE OF PERFORMING LIGATION ON VARICOSE VEINS ON MULTIPLE SITES QUICKLY AND RELEASING THE LIGATION RINGS FROM THE FRONT END OF AN INNER CYLINDRICAL PORTION ONE AT A TIME WITH CERTAINTY. A PLURALITY OF LIGATION RINGS B ARE ALIGNED AND HELD IN A CYLINDER PORTION 9 WHICH IS FORMED BY AN INNER CYLINDRICAL PORTION 2 AND AN OUTER CYLINDRICAL PORTION 3. A PISTON MEMBER 10 FOR PUSHING OUT THE LIGATION RINGS B IS PROVIDED IN THE CYLINDER PORTION 9. AIR INTRODUCTION MEANS C FOR FORCING AIR INTO THE CYLINDER PORTION 9 IS PROVIDED. AN ANNULAR GROOVE 6 FOR HOLDING THE FOREMOST LIGATION RING B IS FORMED AT THE FRONT END OF THE INNER CYLINDRICAL PORTION 2. AN AIR DISCHARGE PORT 17 IS FORMED AT THE BOTTOM OF THE ANNULAR GROOVE 6. THE AIR DISCHARGE PORT 17 DISCHARGES AIR FROM THE CYLINDER PORTION 9 SO AS TO STOP THE PISTON MEMBER 10 WHEN THE LIGATION RING B IS MOVED OUT OF THE ANNULAR GROOVE 6.(FIG 1)
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