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Multi-chamber mixing syringe

发明专利审中
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4权利要求 · 1 独立
§ Ⅰ

卷宗概要

发明人

Gale Harrison Thorne, JR.; Gale Harrison Thorne

IPC 分类

A61M 5/315A61M 5/178A61M 5/19A61M 5/31

CPC 分类

A61M5/31511A61M5/19A61M5/3134A61M5/3145A61M2005/1787A61M2005/3128

Nested piston apparatus is disclosed for making free pistons used to provide multi-chamber mixing and sequential delivery syringes within conventional syringe barrels. Each such syringe comprising one or more free pistons made according to the instant invention whereby syringe contents are selectively kept disparate until acted upon by forced displacement of an associated plunger rod. As well, nested piston apparatus is disclosed for using nested piston apparatus as multiple free pistons for making triple chamber syringes.

原文(中文)

Nested piston apparatus is disclosed for making free pistons used to provide multi-chamber mixing and sequential delivery syringes within conventional syringe barrels. Each such syringe comprising one or more free pistons made according to the instant invention whereby syringe contents are selectively kept disparate until acted upon by forced displacement of an associated plunger rod. As well, nested piston apparatus is disclosed for using nested piston apparatus as multiple free pistons for making triple chamber syringes.