US4852584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid collection tube with a safety funnel at its open end
Assignee: Individual
•
Filing: 1988-10-11
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Granted: 1989-08-01
•
Expires: 2008-10-11
Abstract
Abstract A medical safety device which reduces the risk of transmitting disease to health care personnel who take or handle body fluid samples such as blood samples. The device reduces the risk of the transmission of disease caused by needlestick and accidental spillage of fluid samples. The device comprises a funnelshaped needle guard having a neck portion which fits snugly over the end of a sample tube such as a vacuum tube. The glass sample tube is coated with a resin to make it substantially shatterproof. The interior surface of the needle guard has interconnecting vertical and circular grooves to channel accidentally spilled fluid into the tube.
Inventors
- 👤 Charles R. Selby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:07
CPC Classifications
B; B01; B01L; B01L3/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
137 words
A medical safety device for body fluid samples which comprises: a funnel shaped needle guard which is open at its upper end and lower end, said upper end being of a larger diameter than the lower end, said lower end forming a neck portion, the interior surface of the guard having one or more vertical grooves and one or more circular grooves which interconnect and provide for the passage of body fluid, and a resin coated glass sample tube having an upper open and a closed lower end receiving and holding a body fluid sample, the upper end of said tube being positioned within the neck of said needle guard, and said resin coated tube being characterized in that said coating is continuous and covers the exterior surface of the glass tube to make it substantially shatterproof.
Claim 2
Dependent Claim
137 words
A medical safety device for body fluid samples which comprises: a funnel shaped needle guard which is open at its upper end and lower end, said upper end being of a larger diameter than the lower end, said lower end forming a neck portion, the interior surface of the guard having one or more vertical grooves and one or more circular grooves which interconnect and provide for the passage of body fluid, and a resin coated glass sample tube having an upper open and a closed lower end receiving and holding a body fluid sample, the upper end of said tube being positioned within the neck of said needle guard, and said resin coated tube being characterized in that said coating is continuous and covers the exterior surface of the glass tube to make it substantially shatterproof.
Claim 3
Dependent Claim
23 words
The device according to claim 1 wherein the resin coated glass sample tube is a glass vacuum tube coated with a thermoplastic resin.
Claim 4
Dependent Claim
42 words
The device according to claim 2 wherein said interconnecting vertical and circular grooves of the needle guard are in communication with the groove in the cap of the vacuum tube so that any spillage of body fluid is channeled into the tube.
Claim 5
Dependent Claim
21 words
The device of claim 1 wherein said resin coated glass sample tube is a glass tube coated with a thermoplastic resin.
Claim 6
Dependent Claim
15 words
The device of claim 1 wherein said needle guard is made of a thermoplastic resin.
References Cited (Backward Citations)
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Cited
US3811136A
Cited
US3902477A
Cited
US3923040A
Cited
US4116066A
Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-31 | 1993-01-30 | 1993-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-31 | 1997-01-30 | 1997-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-31 | 2001-01-30 | 2001-08-01 | $7700.00 | Window Closed / Lapsed |