Title:
EXTERNALLY PROVIDED PUMP STROKE INDICATIOR
Document Type and Number:
Japanese Patent JPH07155373
Kind Code:
A
Abstract:
PURPOSE: To provide a throw-away type indicator of an extremely simple structure to be simultaneously used with a sterilizing system in which a cannula correctly pierced into a liquid injection port in an in-vivo embedding type infusion system can be surely displayed. CONSTITUTION: Cylinders 42, 44, 46 made of transparent material to compose an indicator 22 in which liquid is changed are composed to be connected to a liquid injection port through a lower end part of them in a substantially vertical attitude, a movable sinking body 48, and a seat part to limit move of the sinking body toward the lower end part of the cylinders 42, 44, 46 are provided in the cylinders 42, 44, 46, and the seat part is composed in such a way that the sinking body 48 is seated on the seat body by weight of the sinking body 48. The sinking body 48 comprises material having a higher specific gravity than liquid, and it, is composed to make move to get apart from the seat part only when liquid inner pressure boosting pressure by a pump stroke in a medicinal infusion system is generated.
Inventors:
JIYAN ROOZEN
Application Number:
JP25716894A
Publication Date:
June 20, 1995
Filing Date:
October 21, 1994
Export Citation:
Assignee:
SIEMENS ELEMA AB
International Classes:
A61M5/142; A61M37/00; (IPC1-7): A61M5/142; A61M37/00
Attorney, Agent or Firm:
Toshio Yano (1 outside)
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