Strontium-rubidium infusion pump with in-line dosimetry

• US 4,585,009 A
• Filed: 02/28/1983
• Issued: 04/29/1986
• Est. Priority Date: 02/28/1983
• Status: Expired due to Term

• Current Assignee: Bracco International B.V. (Bracco SPA)
• Original Assignee: E R Squibb & Sons Incorporated
• Inventors: Loberg, Michael D., Barker, Samuel L.
• Primary Examiner(s): Cohen, Lee S.
• Assistant Examiner(s): Falk, Steven
• Application Number:
  US06/470,841
• Time in Patent Office: 1,156 Days
• Field of Search: 128/655, 128/654, 128/656.8, 128/716.1, 128/653, 128/659, 128/1.1, 128/1.2, 250/362, 250/363 S, 604/51-53
• US Class Current: 600/432
• CPC Class Codes: A61M 2205/051 with radiation therapy
• CPC Class Codes: A61M 5/007 for contrast media
• CPC Class Codes: A61M 5/1407 Infusion of two or more substances
• CPC Class Codes: A61M 5/1452 pressurised by means of pistons
• CPC Class Codes: A61M 5/16827 controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths infusion of multiple fluids without using a controller A61M5/1407
• CPC Class Codes: A61M 5/172 electrical or electronic A61M5/16804, A61M5/16831 take precedence
• CPC Class Codes: G01T 1/203 the detector being made of plastics
• CPC Class Codes: G21G 1/0005 Isotope delivery systems use of radioisotopes as tracers G21H5/02

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.

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.