US3749084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sequentially dispensing syringe with multiple needle assembly
Assignee: Individual
•
Filing: 1971-05-03
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Granted: 1973-07-31
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Expires: 1991-05-03
Abstract
Abstract This invention relates to a syringe having two or more dispensing chambers therewithin operable to dispense from or fill independent chambers in any desired sequential order. More specifically, this invention relates to a syringe having a multiple needle assembly connected to a main housing and having an inner dispensing and outer dispensing assemblies operable to independently either dispense or receive fluids, such may be operable to inject fluids into the blood system at variable steps thereon which process is most desirable when utilizing radioactive fluids for medical analysis.
Inventors
- 👤 A Cucchiara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:03
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/15; A61B5/150007; A61B5/150015; A61B5/15003; A61B5/02; A61B5/026; A61B5/0275; A61B5/02755; A61B5/150206; A61B5/150236; A61B5/150244; A61B5/150251; A61B5/150259; A61B5/150267; A61B5/150374; A61B5/150381; A61B5/150389; A61B5/150404; A61B5/150503; A61B5/150519; A61B5/150732; A61B5/150755; A61B5/153; A61B5/1535; A61B5/155; A61M; A61M5/00; A61M5/178; A61M5/1785; A61M5/19; A61M5/31; A61M5/315; A61M5/31596; A61M5/32; A61M2005/1787; A61M2005/3201; A61M5/31598
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
181 words
A syringe means operable to selectively and independently dispense or receive a fluid therein, comprising: a. a housing means having a fluid directing assembly connectable to one end thereof, b. a first fluid dispensing assembly mounted within said housing means operably connected to said fluid directing assembly, c. a second fluid dispensing assembly operably connected to said first fluid dispensing assembly and said fluid directing assembly, d. said fluid directing assembly having a first section to receive fluid from said first fluid dispensing assembly and a second section to receive fluid from said second fluid dispensing assembly, e. said first dispensing assembly and said second fluid dispensing assembly, each operably independently to dispense from or receive in a fluid while maintaining complete separation of the fluid in the syringe means, f. said fluid directing assembly with said first section being an elongated needle member surrounded by and connected to said second section being a second needle member, and g. said first needle member extended beyond the outer end of said second needle member to assure proper separation of fluids utilized therein.
Claim 2
Dependent Claim
181 words
A syringe means operable to selectively and independently dispense or receive a fluid therein, comprising: a. a housing means having a fluid directing assembly connectable to one end thereof, b. a first fluid dispensing assembly mounted within said housing means operably connected to said fluid directing assembly, c. a second fluid dispensing assembly operably connected to said first fluid dispensing assembly and said fluid directing assembly, d. said fluid directing assembly having a first section to receive fluid from said first fluid dispensing assembly and a second section to receive fluid from said second fluid dispensing assembly, e. said first dispensing assembly and said second fluid dispensing assembly, each operably independently to dispense from or receive in a fluid while maintaining complete separation of the fluid in the syringe means, f. said fluid directing assembly with said first section being an elongated needle member surrounded by and connected to said second section being a second needle member, and g. said first needle member extended beyond the outer end of said second needle member to assure proper separation of fluids utilized therein.
Claim 3
Dependent Claim
54 words
A syringe means as described in claim 1, wherein: a. said second fluid dispensing assembly having a main plunger assembly mounted within a barrel member, said barrel member secured to said housing means, and b. said plunger assembly having a piston head movable therein to receive in or dispense fluid from said barrel member.
Claim 4
Dependent Claim
62 words
A syringe means as described in claim 1, including: a. an intermediate fluid dispensing assembly mounted between said first fluid dispensing assembly And said second fluid dispensing assembly, and b. said fluid directing assembly being a multiple needle assembly having interconnected, first, intermediate, and second needle members to receive or inject fluid from said first, intermediate, and second fluid dispensing assemblies, respectively.
Claim 5
Dependent Claim
259 words
A syringe means operable to selectively and independently dispense or receive a fluid therein, comprising: a. a housing means having a fluid directing assembly connectable to one end thereof, b. a first fluid dispensing assembly mounted within said housing means operably connected to said fluid directing assembly, c. a second fluid dispensing assembly operably connected to said first fluid dispensing assembly and said fluid directing assembly, d. said fluid directing assembly having a first section to receive fluid from said first fluid dispensing assembly and a second section to receive fluid from said second fluid dispensing assembly, e. said first fluid dispensing assembly and said second fluid dispensing assembly, each operable independently to dispense from or receive in a fluid while maintaining complete separation of the fluid in the syringe means, f. said housing means having a support member tapered at one end to receive said fluid directing assembly and having a laterally extended flange section at an upper end thereof, g. said first fluid dispensing assembly having a plunger assembly mounted within said housing means and about said second fluid dispensing assembly, said plunger assembly having a piston member movable longitudinally for receiving or dispensing a fluid therefrom, h. said second fluid dispensing assembly having a central barrel member secured to said housing means by bar members, i. said plunger assembly having a support body connected to said piston member, and j. said support body having a plurality of longitudinal grooves to receive respective ones of said bar members therein to permit axial movement of said plunger assembly.
Claim 6
Dependent Claim
259 words
A syringe means operable to selectively and independently dispense or receive a fluid therein, comprising: a. a housing means having a fluid directing assembly connectable to one end thereof, b. a first fluid dispensing assembly mounted within said housing means operably connected to said fluid directing assembly, c. a second fluid dispensing assembly operably connected to said first fluid dispensing assembly and said fluid directing assembly, d. said fluid directing assembly having a first section to receive fluid from said first fluid dispensing assembly and a second section to receive fluid from said second fluid dispensing assembly, e. said first fluid dispensing assembly and said second fluid dispensing assembly, each operable independently to dispense from or receive in a fluid while maintaining complete separation of the fluid in the syringe means, f. said housing means having a support member tapered at one end to receive said fluid directing assembly and having a laterally extended flange section at an upper end thereof, g. said first fluid dispensing assembly having a plunger assembly mounted within said housing means and about said second fluid dispensing assembly, said plunger assembly having a piston member movable longitudinally for receiving or dispensing a fluid therefrom, h. said second fluid dispensing assembly having a central barrel member secured to said housing means by bar members, i. said plunger assembly having a support body connected to said piston member, and j. said support body having a plurality of longitudinal grooves to receive respective ones of said bar members therein to permit axial movement of said plunger assembly.
Claim 7
Dependent Claim
97 words
A syringe means as described in claim 4, wherein: a. an intermediate fluid dispensing assembly mounted between said first fluid dispensing assembly and said second fluid dispensing assembly, b. said fluid directing assembly being a multiple needle assembly having interconnected, first, intermediate, and second needle members to receive or inject fluid from said first, intermediate, and second fluid dispensing assemblies, respectively, and c. said intermediate fluid dispensing assembly having a piston member mounted about said barrel member and surrounded by a cylindrical casing secured to said housing means, said piston member being movable axially for fluid operation.
Claim 8
Dependent Claim
49 words
A syringe means as described in claim 5, wherein: a. said first fluid dispensing assembly having a piston member mounted about said cylindrical casing and engagable with said housing means, and b. said piston members having elongated slots therein to receive said bar members to permit longitudinal movement thereof.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |