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US4562829A
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Strontium-rubidium infusion system
Assignee: Bracco International BV
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Filing: 1984-05-01
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Granted: 1986-01-07
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Expires: 2004-05-01
Abstract
Abstract The strontium-rubidium infusion system includes means for generating a solution containing rubidium-82, measuring the radioactivity in the solution, and infusing it into a patient in order to perform various studies on the patient's heart. The system includes a wash syringe which can be used by a physician to manually inject a bolus containing a large amount of radioactivity directly into a patient in order to perform first pass ventriculography studies.
Inventors
- 👤 Brian C. Bergner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:11
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/007; A61M5/14; A61M5/1407; A61M5/142; A61M5/145; A61M5/1452; A61M5/168; A61M5/16804; A61M5/16827; A61M5/172; G; G01; G01T; G01T1/00; G01T1/16; G01T1/20; G01T1/203; G21; G21G; G21G1/00; G21G1/0005; A61M2205/00; A61M2205/05; A61M2205/051; G21G1/001; G21G2001/0031
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
67 words
A strontium-rubidium infusion system comprising: (a) means for generating rubidium-82 in a solution which can be infused into a patient; (b) means for collecting a predefined volume of solution containing rubidium-82; (c) means for measuring the radioactivity present in said predefined volume before it is infused into said patient; and (d) means for quickly infusing said predefined volume of rubidium-82 into said patient as a single bolus.
Claim 2
Dependent Claim
67 words
A strontium-rubidium infusion system comprising: (a) means for generating rubidium-82 in a solution which can be infused into a patient; (b) means for collecting a predefined volume of solution containing rubidium-82; (c) means for measuring the radioactivity present in said predefined volume before it is infused into said patient; and (d) means for quickly infusing said predefined volume of rubidium-82 into said patient as a single bolus.
Claim 3
Dependent Claim
27 words
The strontium-rubidium infusion system of claim 1 wherein said means for generating rubidium-82 in a solution which can be infused into a patient comprises a strontium-rubidium generator.
Claim 4
Dependent Claim
20 words
The strontium-rubidium infusion system of claim 2 wherein said means for infusing said solution into a patient comprises a syringe.
Claim 5
Dependent Claim
25 words
The strontium-rubidium infusion system of claim 3 wherein said means for infusing said solution into a patient further comprises means for electromechanically operating said syringe.
Claim 6
Dependent Claim
29 words
The strontium-rubidium infusion system of claim 4 wherein said means for electromechanically operating said syringe comprises a stepper motor which drives means for moving the plunger of said syringe.
Claim 7
Dependent Claim
34 words
The strontium-rubidium infusion system of claim 5 further comprising electronic means for controlling said means for electromechanically operating said syringe comprises a stepper motor which drives means for moving the plunger of said syringe.
Claim 8
Dependent Claim
25 words
The strontium-rubidium infusion system of claim 6 further comprising means for measuring the radioactivity present in said solution as it is infused into said patient.
Claim 9
Dependent Claim
25 words
The strontium-rubidium infusion system of claim 6 further comprising means for measuring the radioactivity present in said solution as it is infused into said patient.
Claim 10
Dependent Claim
29 words
The strontium-rubidium infusion system of claim 6 wherein said means for measuring the radioactivity present in said solution as it is infused into said patient comprises a dosimetry system.
Claim 11
Dependent Claim
21 words
The strontium-rubidium infusion system of claim 6 wherein said dosimetry system is connected to means for controlling said means for infusing.
Claim 12
Dependent Claim
31 words
The strontium-rubidium infusion system of claim 1 wherein said means for quickly infusing said predefined volume of rubidium-82 into said patient as a single bolus comprises a manually operated wash syringe.
Claim 13
Dependent Claim
19 words
The strontium-rubidium infusion system of claim 11 wherein said manually operated wash syringe is initially filled with saline solution.
References Cited (Backward Citations)
US4202345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-06 | 1989-07-08 | 1990-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-06 | 1993-07-08 | 1994-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-06 | 1997-07-08 | 1998-01-07 | $7700.00 | Window Closed / Lapsed |