The closing implement of the shape of a doughnut which blockades a blood vessel gently. Used for reappearance of angiostenosis and the re-cycling experiment.
Ameroid constrictor

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Tokyo Instruments Inc.
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This is a device for gradual occlusion of blood flow. There is an inner ring of casein, which swells as it absorbs tissue fluid, inside a ring of stainless steel.

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Frequently Asked Questions

  • How does an ameroid constrictor blockade a blood vessel?

    The casein in the central core absorbs water from around, and expands.
    Thereby, a central hole (lumen) becomes narrow gradually and blockades a blood vessel.
  • How many days it takes to occlude a lumen?

    The lumen will usually continue to occlude up to 10 - 14 days from start of test.

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