Capsule medical apparatus
First Claim
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1. A capsule medical apparatus, comprising:
- a needle driving unit that punctures an internal region of interest in a subject with an injection needle and pulls out the injection needle from the internal region of interest;
a liquid injection unit that injects a liquid into the internal region of interest through the injection needle that punctures the internal region of interest; and
a leak prevention unit that prevents the liquid injected into the internal region of interest from leaking from the internal region of interest;
wherein the leak prevention unit comprises a pressure suppressing unit that suppresses an increase in pressure of the liquid remaining inside the internal region of interest;
wherein the pressure suppressing unit comprises;
a suction unit that sucks a backflow liquid that is the liquid injected into the internal region of interest and that then flows back from the internal region of interest through the injection needle, a path for injecting the liquid into the internal region of interest being the same as a path for sucking the backflow liquid; and
a communicated-state switching unit that switches its state from a communicated state between the injection needle and the liquid injection unit to a communicated state between the injection needle and the suction unit and vice versa.
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Abstract
A capsule medical apparatus includes a needle driving unit that punctures an internal region of a subject with an injection needle and pulls out the injection needle from the internal region, a liquid injection unit that injects a liquid into the internal region through the injection needle, and a leak prevention unit that prevents the liquid that is injected into the internal region from leaking from the internal region.
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Citations
5 Claims
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1. A capsule medical apparatus, comprising:
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a needle driving unit that punctures an internal region of interest in a subject with an injection needle and pulls out the injection needle from the internal region of interest; a liquid injection unit that injects a liquid into the internal region of interest through the injection needle that punctures the internal region of interest; and a leak prevention unit that prevents the liquid injected into the internal region of interest from leaking from the internal region of interest; wherein the leak prevention unit comprises a pressure suppressing unit that suppresses an increase in pressure of the liquid remaining inside the internal region of interest; wherein the pressure suppressing unit comprises; a suction unit that sucks a backflow liquid that is the liquid injected into the internal region of interest and that then flows back from the internal region of interest through the injection needle, a path for injecting the liquid into the internal region of interest being the same as a path for sucking the backflow liquid; and a communicated-state switching unit that switches its state from a communicated state between the injection needle and the liquid injection unit to a communicated state between the injection needle and the suction unit and vice versa. - View Dependent Claims (2, 3, 4, 5)
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Specification