Patent US4775376A successfully refreshed from Google Patents.
US4775376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for catching fluids purged from a syringe
Assignee: ERBAMONT ND A CORP OF NETHERLANDS ANTILLES
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Filing: 1986-07-09
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Granted: 1988-10-04
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Expires: 2006-07-09
Abstract
Abstract A syringe purging device comprises a closed chamber into which air and/or any excessive amount of a hazardous liquid, such as a chemotherapy drug, is ejected from a syringe to overcome the health hazard created by openly purging syringes into the air or into a pad of gauze material. A sharp open end of a hollow needle of a syringe is sealingly inserted into the chamber and the syringe is activated to purge any air and/or excess liquid into the chamber which expands as necessary. Preferably, the chamber is then further expanded to reduce the pressure therewithin to better ensure clean withdrawal of the needle from the chamber or extension of the needle beyond the chamber and retention within the chamber of any fluids ejected from the syringe.
Inventors
- 👤 Mark E. Strung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:59
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/3146; A61M5/001; A61M5/32; A61M5/3202; A61M5/3205; A61M5/321; A61M5/3243; A61M2005/3103; A61M2005/3104; A61M5/46
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
129 words
A syringe purging device comprising: first tubular member having first and second opposing open ends; stopper means fixedly positioned within and closing said first end, said stopper means being shaped to maintain an airtight seal of said first end and permit sealed entrance into said first tubular member by a needle of a syringe; a second tubular member having a closed end and an open end and being sized such that said open end telescopically engages said second end of said first tubular member; said closed end of said second tubular member including diaphragm means for permitting sealed extension of a syringe needle beyond said chamber by puncturing said diaphragm means, sufficiently to inject a patient; and means forming an airtight seal between said first and second tubular members.
Claim 2
Dependent Claim
129 words
A syringe purging device comprising: first tubular member having first and second opposing open ends; stopper means fixedly positioned within and closing said first end, said stopper means being shaped to maintain an airtight seal of said first end and permit sealed entrance into said first tubular member by a needle of a syringe; a second tubular member having a closed end and an open end and being sized such that said open end telescopically engages said second end of said first tubular member; said closed end of said second tubular member including diaphragm means for permitting sealed extension of a syringe needle beyond said chamber by puncturing said diaphragm means, sufficiently to inject a patient; and means forming an airtight seal between said first and second tubular members.
Claim 3
Dependent Claim
42 words
A syringe purging device as claimed in claim 1 wherein said first and second tubular members include restraint means adjacent the open ends thereof for abutting engagement to prevent inadvertent opening of said chamber by disengaging said first and second tubular members.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-10-04 | 1992-04-04 | 1992-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-04 | 1996-04-04 | 1996-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-04 | 2000-04-04 | 2000-10-04 | $7700.00 | Window Closed / Lapsed |