Method and apparatus for dispensing radioactive liquid

• US 20050085682A1
• Filed: 10/21/2003
• Published: 04/21/2005
• Est. Priority Date: 04/17/2001
• Status: Abandoned Application

• Current Assignee: Sumitomo Heavy Industries Limited
• Original Assignee: Sumitomo Heavy Industries Limited
• Inventors: Sasaki, Motoji, Tanaka, Akira
• Application Number:
  US10/689,051
• Publication Number:
  US 20050085682A1
• Time in Patent Office: Days
• US Class Current: 600/4
• CPC Class Codes: A61K 51/1282 Devices used in vivo and carrying the radioactive therapeutic or diagnostic agent, therapeutic or in vivo diagnostic kits, stents
• 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 5/1785 comprising radioactive shield means syringe shields or holders for storage of radioactive sources G21F5/018

Abstract

A method and apparatus which frees the operator from dispensing operations with a reduction in exposure. A necessary amount of radioactive drug solution is dispensed by measuring radioactivity concentration of the radioactive drug solution passing through a tube constituting the channel of the radioactive drug solution, and controlling the amount of dispensation.

Claims

1. A method for dispensing a radioactive liquid, for dispensing a necessary amount of radioactive liquid, comprising the steps of:

measuring radioactivity concentration of the radioactive liquid; and

controlling an amount of dispensation.

2. The method for dispensing a radioactive liquid according to claim 1, wherein

said radioactivity concentration of the radioactive liquid is measured when the radioactive liquid pass through a tube constituting a channel of the radioactive liquid.

5. A method for dispensing and administering a radioactive liquid for dispensing a necessary amount of radioactive liquid from a container and administering the same, the method comprising the steps of:

dispensing the necessary amount from the container by using the dispensing method according to claim 1 or 2, immediately before administration;

holding the entire amount of the radioactive liquid just dispensed temporarily in a radiation-shielded liquid holding part;

measuring an amount of radioactivity of the radioactive liquid held in the liquid holding part; and

administering the entire amount of radioactive liquid.

3. An apparatus for dispensing a radioactive liquid for dispensing a necessary amount of radioactive liquid, the apparatus comprising:

a first detector measuring radioactivity concentration of the radioactive liquid; and

a controller controlling an amount of dispensation based on the measurement.

4. The apparatus for dispensing a radioactive liquid according to claim 3, wherein

said first detector measures the radioactivity concentration of the radioactive liquid passing through a tube constituting a channel of the radioactive liquid.

6. An apparatus for dispensing and administering a radioactive liquid for dispensing a necessary amount of radioactive liquid from a container and administering the same, the apparatus comprising:

the dispensing apparatus according to claim 3 or 4, for dispensing the necessary amount from the container immediately before administration;

a liquid holding part capable of holding the entire amount of radioactive liquid just dispensed temporarily;

a second detector measuring an amount of radioactivity of the radioactive liquid held in the liquid holding part; and

administering device administering the entire amount of radioactive liquid after the radioactivity measurement.

7. The apparatus for dispensing and administering a radioactive liquid according to claim 6,

further comprising a third detector detecting attenuation in the radioactivity concentration of the radioactive liquid and/or a passage of the radioactive liquid, provided to the channel of the radioactive liquid.