Plungerless syringe
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 6, 1994
Issued Date -
N/A
app pub date -
Jul 26, 1993
filing date -
Sep 18, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hollow, molded, disposable, plastic syringe is provided with an air trap chamber in fluid communication with a collapsible container portion. An umbilical passage connects the container to the chamber. With the air trap chamber extending upwardly from the container portion, air is trapped in the chamber. The chamber is then removed by sealing the umbilical passage shut and severing the passage between the seal and the chamber. The syringe is then useable without any air contained in the container. The container is shaped to facilitate ejection of an accurate dose without injecting too little or too much of the contained liquid.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully