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Radioactive pellet injection apparatus

  • US 20060004243A1
  • Filed: 07/01/2005
  • Published: 01/05/2006
  • Est. Priority Date: 07/01/2004
  • Status: Abandoned Application
First Claim
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1. A radioactive pellet injection apparatus comprising:

  • a capsule made of transparent polymeric material, including a cylindrical capsule main body having a cavity in a center portion thereof, and a pair of stoppers attached to respective ones of opposing ends of said capsule main body, each of said stoppers having a through-hole at a center thereof extending into said cavity for guiding a hypodermic needle into said cavity, said cavity containing minute, spherical radioactive pellets therein;

    a protective container made of transparent polymeric material for enclosing said capsule, having one end thereof closed by a stopper having a carrier fluid supply tube connecting section on which one of said hypodermic needles is mounted to extend into said capsule cavity, and having the other end thereof closed by a stopper having a catheter connecting section on which the other of said hypodermic needles is mounted to extend into said cavity;

    a radiation detector disposed to face a portion of said catheter connecting section outside said protective container;

    a rotary driving unit for supporting said protective container and said radiation detector, a tilt angle of said rotary driving unit being variable about a horizontal axis in response to a control signal;

    a console including a pump unit for supplying a radioactive pellet carrier fluid to a tube connected to said carrier fluid supply tube connecting section, a detector circuit for processing a detection signal from said radiation detector, and a control circuit providing the control signal to said rotary driving unit;

    and a supporting arrangement having a coupling unit at a proximal end thereof, said coupling unit being capable of being detachably coupled to either of said console and a treatment bed on which a patient is to be laid, said rotary driving unit being disposed at a distal end of said supporting arrangement.

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