BLOOD VESSEL OBSERVATION APPARATUS

To provide a blood vessel observation apparatus that can capture a color image more safely with user's operation in surgical operation or the like and improves user's convenience.SOLUTION: A blood vessel observation apparatus includes: an inner catheter inserted into a blood vessel by caus...

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Hauptverfasser: ENOMOTO HIROBUMI, SUMIYOSHI HIROAKI
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a blood vessel observation apparatus that can capture a color image more safely with user's operation in surgical operation or the like and improves user's convenience.SOLUTION: A blood vessel observation apparatus includes: an inner catheter inserted into a blood vessel by causing a guide wire preliminarily inserted into the blood vessel to pass therethrough; and an endoscope inserted into the inner catheter and including a holder formed with a guide wire hole for storing an imaging part and causing the guide wire to pass therethrough, in the tip thereof. The inner catheter is provided with an annular transparent part for transmitting imaging light from an inner wall of a blood vessel therethrough and causing imaging light to be incident upon the imaging part within a predetermined range in a direction along an axis line of the inner catheter.SELECTED DRAWING: Figure 2 【課題】手術等の時にユーザ操作により安全にカラー画像を撮影でき、ユーザの利便性を向上する血管観察装置を提供する。【解決手段】血管観察装置は、予め血管に挿入されたガイドワイヤを内側に通して血管に挿入されるインナーカテーテルと、インナーカテーテルに挿入され、撮像部を収容するとともにガイドワイヤを通すガイドワイヤ孔が形成されたホルダを先端に有する内視鏡と、を備える。インナーカテーテルには、血管の内壁からの撮像光を透過させて撮像部に入射させる環状の透明部が、インナーカテーテルの軸線に沿う方向の所定の範囲で設けられている。【選択図】図2