|発明の名称||TOPICAL INJECTION NEEDLE|
PROBLEM TO BE SOLVED: To provide a topical injection needle capable of appropriately executing localized injection in a submucosal layer under microscopic observation.
SOLUTION: A topical injection needle 1 includes: a tubular insertion part 10; a needle tube 20 inserted into the insertion part 10 so as to advance or retreat; and a tissue holding part 30 inserted into the insertion part 10 so as to advance or retreat, which includes two or more holding members 31a, 31b, 32a, and 32b whose respective tips are brought close to each other or separated from each other by protruding or retracting from the insertion part 10. The center of a holding range A1 of the tissue holding part 30 is located on a central axis X of the needle tube 20, and gripping claws 35A, 35B, 35C, and 35D provided to the tip of the holding members 31a, 31b, 32a, and 32b extend in a direction not opposed to the other gripping claws.
- 学校法人大阪医科薬科大学 大阪医科大学 研究推進課
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