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Claims for Patent: 4,562,829

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Claims for Patent: 4,562,829

Title: Strontium-rubidium infusion system
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.
Inventor(s): Bergner; Brian C. (Lawrenceville, NJ)
Assignee: E. R. Squibb & Sons, Inc. (Princeton, NJ)
Application Number:06/605,758
Patent Claims: 1. 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.

2. 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.

3. The strontium-rubidium infusion system of claim 2 wherein said means for infusing said solution into a patient comprises a syringe.

4. 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.

5. 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.

6. 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.

7. 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.

8. 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.

9. 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.

10. The strontium-rubidium infusion system of claim 6 wherein said dosimetry system is connected to means for controlling said means for infusing.

11. 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.

12. The strontium-rubidium infusion system of claim 11 wherein said manually operated wash syringe is initially filled with saline solution.
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