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A SYRINGE FOR DISPENSING A DENTAL SUBSTANCE
专利权人:
3M INNOVATIVE PROPERTIES COMPANY
发明人:
Andreas J. Boehm,Marc Peuker
申请号:
US16092310
公开号:
US20190298490A1
申请日:
2017.04.11
申请国别(地区):
US
年份:
2019
代理人:
摘要:
A syringe (1) for dispensing a dental substance. The syringe has a container (11) that forms at least a first and a second component chamber (111, 112) and a plunger (12) having a first and a second plunger rod (121, 122). The first and second plunger rod (121, 122) are at least partially arranged in the first and second chambers, respectively, for a movement from a full position to an empty position over a displacement length. The syringe (1) further has an actuator (13) that is guided for a movement relative to the container (11). The movement of the actuator (13) is restricted for a predetermined actuation stroke being defined by a length between a rear position and a front position of the actuator (13). The plunger has a toothing and the teeth of the toothing are spaced at a pitch P. The actuator has at least a first pawl (139a) that meshes into the toothing of the plunger (12). The first pawl (139a) and the teeth of the toothing are configured such that in a movement of the actuator (13) in a direction from the front toward the rear position the pawl overrides the teeth and in a movement in the opposite direction the pawl engages the teeth. The displacement length is greater than the actuation stroke and the actuation stroke is at least twice of the pitch P. The syringe (1) allows for precisely dosed dispensing of multiple different portion of dental material.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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