Novel marrow opening machine needle

• Main Authors: CHEN JUNSHU, WANG JINGYU, YU YIYI, TENG YINGXUAN, ZHU HONGYU
• Format: Patent
• Language: Chinese; English
• Published: 14.01.2022
• Subjects: APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE; DENTISTRY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

The utility model discloses a novel broach, which relates to the technical field of broach, and comprises a broach body, a dial is arranged on the surface of the broach body, and a broach head is fixedly mounted at the top end of one side of the broach body. A marrow opening limiting ring is fixedly installed on the side, far away from the marrow opening machine needle body, of the marrow opening machine needle body, a connecting rod is fixedly installed at the top end of the side, far away from the marrow opening needle head, of the marrow opening machine needle body, an installing rod is fixedly installed at the bottom end of one side of the connecting rod, and a clamping fastening rod is fixedly installed at the bottom end of the side, far away from the connecting rod, of the installing rod. Through cooperation of the marrow opening machine needle body and the dial, the effects that the marrow opening depth can be more accurately and clearly controlled visually through the dial on the surface of the marrow