Patent US3814941A successfully refreshed from Google Patents.
US3814941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loading syringe for use with radioactive solutions and other non-sterile solutions
Assignee: ER Squibb and Sons LLC
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Filing: 1972-10-24
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Granted: 1974-06-04
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Expires: 1992-10-24
Abstract
Abstract A loading syringe for use with radioactive solutions. A hollow syringe body is opened at its upper end and has a hypodermic needle at its lower end. A loading pouch is formed in the wall of the syringe body out of the path of travel of a plunger. The filling pouch is integral with the syringe body and opened to the interior thereof. With the plunger in place at the top of the body, radioactive solution is delivered to the interior of the body via the filling pouch. The solution is then injected into a radioactive material generator by way of the hypodermic needle.
Inventors
- 👤 T Czaplinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:04
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/14; A61J1/20; A61J1/2096; A61M; A61M5/00; A61M5/178; A61M5/1785; G; G21; G21F; G21F5/00; G21F5/015; G21F5/018; A61J1/2003; A61J1/2006; A61J1/201; A61J1/2013; A61J1/2079; A61J1/2086
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A loading syringe which comprises a hollow syringe body, a needle attached to one end of said body, said needle adapted to pass fluid therethrough from said body, a plunger closely received in an opening at the other end of said body, said plunger being movable through the full length of said body and adapted to force said fluid through said needle, and a filling pouch integrally formed in the wall of said body out of the path of travel of said plunger, said filling pouch being a scoop-like generally rounded lip extending at an angle with respect to the longitudinal axis of said body, said angle being acute with respect to the plunger end of said body, there being an opening in said body adjacent said lip opened to the interior of said body and adapted to pass fluid therewithin when said plunger is in a fully raised position.
Claim 2
Dependent Claim
150 words
A loading syringe which comprises a hollow syringe body, a needle attached to one end of said body, said needle adapted to pass fluid therethrough from said body, a plunger closely received in an opening at the other end of said body, said plunger being movable through the full length of said body and adapted to force said fluid through said needle, and a filling pouch integrally formed in the wall of said body out of the path of travel of said plunger, said filling pouch being a scoop-like generally rounded lip extending at an angle with respect to the longitudinal axis of said body, said angle being acute with respect to the plunger end of said body, there being an opening in said body adjacent said lip opened to the interior of said body and adapted to pass fluid therewithin when said plunger is in a fully raised position.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |