Body-insertable device and liquid medicine injection method
AssigneeOlympus Corporation
InventorsShinsuke Tanaka, Hironobu Takizawa, Hironao Kawano
Life of this patent
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Abstract
A body-insertable device is introduced into a desired part in a body for injecting a liquid medicine stored in a casing into the desired part. The body-insertable device includes a projecting portion which projects an injection needle injecting the liquid medicine toward the desired part; a detecting unit which detects a position relation between a biological tissue surface in the desired part and the injection needle; and a control unit. The control unit controls an amount of projection of the injection needle according to the position relation detected by the detecting unit, and controls a puncture depth of the injection needle from the biological tissue surface.
Claims6
A body-insertable device, configured to be introduced into a desired part in a body for injecting a liquid medicine stored in a casing into the desired part, the body-insertable device comprising:
- a projecting portion which projects an injection needle injecting the liquid medicine toward the desired part, the injection needle having a plurality of angle detection markers each having a predetermined width in a longitudinal direction of the injection needle;
- an imaging unit which images an image including the injection needle projected from the casing;
- an angle detecting unit which detects the angle detection markers from the image, and calculates a puncture angle, formed between a biological tissue surface in the desired part and the injection needle, based on a result of the detection;
- and
- a control unit which controls a puncture depth of the injection needle from a biological tissue surface in the desired part based on the calculated puncture angle of the injection needle and the plurality of angle detection markers.
A liquid medicine injection method comprising:
- introducing a body-insertable device having a liquid medicine and an injection needle injecting the liquid medicine in a casing into a desired part in a body;
- projecting the injection needle from the body-insertable device to the desired part, the injection needle having a plurality of angle detection markers each having a predetermined width in a longitudinal direction of the injection needle;
- detecting the angle detection markers and calculating a puncture angle formed between a biological tissue surface in the desired part and the injection needle based on a result of the detection;
- and
- controlling a puncture depth of the injection needle from the biological tissue surface based on the calculated puncture angle and the plurality of angle detection markers on the injection needle.
Dependencies are inferred from the claim text.