Preservative-free sterile fluid dispensing system
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United States of America Patent
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Dec 20, 1994
Issued Date -
N/A
app pub date -
Mar 30, 1993
filing date -
Nov 15, 1991
priority date (Note) -
Expired
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Abstract
A fluid dispensing system for delivering sterile preservative-free solution is disclosed. The system uses double self-sealing valves mounted in series inside a tip compartment which fits on the outlet of a multiple dosage squeeze container to prevent undesirable retrograde flow of the dispensed liquid back into the bottle during the decompression cycle. The valves used are either positive acting, normally closed duckbill and/or umbrella valve(s) which open to express solution from the container when squeezing pressure is applied to the bottle and which automatically close when the pressure is released. The fluid dispensing system with an umbrella valve near the system outlet has close to zero dead space volume thereby practically eliminated possible contamination of the sterile fluid under the circumferential seal head portion of the umbrella valve and in the container. A hydrophobic filter is provided to sterilize the replacement air which enters the container upon release of the squeezing pressure.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- JSP PARTNERS, L.P.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Bystrom, Steven R | El Toro, CA | 27 | 839 |
Chan, Peter W | Northridge, CA | 3 | 139 |
Martinez, F Jesus | Mission Viejo, CA | 6 | 243 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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