Capsule medical apparatus with projections and body-cavity observation method
First Claim
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1. A capsule medical apparatus comprising:
- a capsule body to be introduced into a lumen of a subject, the capsule body having a length in a longitudinal axial direction;
a control member controlling a movement of the capsule body in the lumen by a flow of a fluid introduced in the lumen; and
an observing member fixed inside the capsule body and observing a direction of the flow of the fluid and a direction different from the flow of the fluid according to the movement of the capsule body;
wherein the control member is a rotary guide member which rotates the capsule body in a radial direction about an axis passing through the gravity center of the capsule body and perpendicular to the longitudinal axial direction by the flow of the fluid,the rotary guide member includes a pair of one-way resistive elements, the resistive elements having a same shape and being located on an outer surface of the capsule body to be point symmetric with respect to the gravity center of the capsule body in the longitudinal axial direction of the capsule body, andone of the pair of one-way resistive elements faces to the flow of the fluid to generate a reaction force.
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Abstract
Provided is a capsule medical apparatus including a capsule body, a control member, and an observing member. The capsule body is to be introduced into a lumen of a subject. The control member controls a movement of the capsule body in the lumen by a flow of a fluid introduced in the lumen. The observing member is fixed inside the capsule body and observes a direction of the flow of the fluid and a direction different from the flow of the fluid according to the movement of the capsule body.
9 Citations
9 Claims
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1. A capsule medical apparatus comprising:
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a capsule body to be introduced into a lumen of a subject, the capsule body having a length in a longitudinal axial direction; a control member controlling a movement of the capsule body in the lumen by a flow of a fluid introduced in the lumen; and an observing member fixed inside the capsule body and observing a direction of the flow of the fluid and a direction different from the flow of the fluid according to the movement of the capsule body; wherein the control member is a rotary guide member which rotates the capsule body in a radial direction about an axis passing through the gravity center of the capsule body and perpendicular to the longitudinal axial direction by the flow of the fluid, the rotary guide member includes a pair of one-way resistive elements, the resistive elements having a same shape and being located on an outer surface of the capsule body to be point symmetric with respect to the gravity center of the capsule body in the longitudinal axial direction of the capsule body, and one of the pair of one-way resistive elements faces to the flow of the fluid to generate a reaction force. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification