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Details for Patent: 4,585,009

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Details for Patent: 4,585,009

Title: Strontium-rubidium infusion pump with in-line dosimetry
Abstract:The dosimetry system used with a strontium-rubidium infusion system is a very high speed circuit capable of measuring the radioactive dosage infused into a patient in real time. The dosimetry system is capable of receiving very short duration input pulses generated by a photomultiplier tube in response to the presence of radioactivity.
Inventor(s): Barker; Samuel L. (Lawrenceville, NJ), Loberg; Michael D. (Princeton, NJ)
Assignee: E. R. Squibb & Sons, Inc. (Princeton, NJ)
Filing Date:Feb 28, 1983
Application Number:06/470,841
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 infusing said solution into a patient;

(c) means for measuring the radioactivity present in said solution as it is infused into said patient; and

(d) means for controlling said means for infusing in response to the amount of radioactivity which has been infused into said patient.

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 including a plunger therein.

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 and means for moving the plunger of 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 said 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.

7. 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.

8. The strontium-rubidium infusion system of claim 7 wherein said dosimetry system is connected to means for controlling said means for infusing.
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