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 Title: |
US3807397:
DOUBLE DRIP CHAMBER FOR INTRAVENOUS SYTEMS
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Noiles, Douglas G.; New Canaan, CT
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| Assignee: |
United States Surgical Corporation, Baltimore, MD
other patents from UNITED STATES SURGICAL CORPORATION (597410) (approx. 1,177)
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| Published / Filed: |
1974-04-30
/ 1972-09-28
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| Application Number: |
US1972000293162
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| IPC Code: |
Advanced:
A61M 5/14;
Core:
more...
IPC-7:
A61M 5/00;
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| U.S. Class: |
Current:
604/251;
Original:
128/214.C;
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| Field of Search: |
128/214.2,214 C
222/158,159,420
210/094
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| Priority Number: |
| 1972-09-28 |
US1972000293162 |
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| Abstract: |
A drip chamber for use in an intravenous feeding system includes a main body portion made from a transparent flexible tube. A constrictor means is located in the approximate longitudinal center of the transparent flexible tube and serves to separate the transparent flexible tube into an upper drip chamber and a lower drip chamber. The upper drip chamber is adapted to produce 60 drops per milliliter of parenteral fluid, while the lower drip chamber is adapted to produce 15 drops per milliliter. With this design, the inventive double drip chamber provides an easily measurable number of drops per minute of parenteral fluid, and hence easy determination of parenteral fluid flow rate, regardless of the fluid flow rate magnitude.
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| Attorney, Agent or Firm: |
Fleit, Gipple & Jacobson ;
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| Primary / Asst. Examiners: |
Trapp, Lawrence W.;
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| INPADOC Legal Status: |
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| Family: |
None
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First Claim:
Show all 11 claims |
What is claimed is:
1. A flow meter for measuring the flow rate of a parenteral fluid to be intravenously fed into the veins of a patient comprising: a transparent tube; inlet means attached to one end of said transparent tube for receiving a parenteral fluid, said inlet means defining a first drop forming orifice for forming said parenteral fluid into drops of a first predetermined size; outlet means attached to the other end of said transparent tube, said outlet means adapted to discharge said parenteral fluid from said transparent tube; and constrictor means in said tube located intermediate said inlet means and said outlet means and defining a first transparent chamber with said inlet means and a second transparent chamber with said outlet means; said constrictor means adapted to receive drops of parenteral fluid falling from said first drop forming orifice, said constrictor means defining a second drop forming orifice for forming said parenteral fluid into drops of a second predetermined size, said second predetermined size being different from said first predetermined size.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 5 U.S. patent(s) that reference this one
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