DIAGNOSTIC IMAGING CATHETER

To provide a diagnostic imaging catheter set that can easily prevent generation of air bubbles in a pull-back system at priming, and provide a diagnostic imaging catheter.SOLUTION: A diagnostic imaging catheter set has: a diagnostic imaging catheter with a pull-back system including an outer tube, and an inner tube provided radially inside from the outer tube and axially movable relatively to the outer tube; and a priming article for performing the priming of the diagnostic imaging catheter. The diagnostic imaging catheter set is provided with a pressure loss part for generating a pressure loss of 0.3 MPa or more when a saline is made to flow at a flow rate of 300 ml/min in a priming flow path on a base end side from the pull-back system. The diagnostic imaging catheter has the pull-back system including the outer tube, and the inner tube provided radially inside from the outer tube and axially movable relatively to the outer tube. The diagnostic imaging catheter is provided with the pressure loss part for generating a pressure loss of 0.3 MPa or more when the saline is made to flow at a flow rate of 300 ml/min in the priming flow path on the base end side from the pull-back system.SELECTED DRAWING: Figure 5 【課題】プライミング時のプルバック機構内での気泡の発生を抑制し易い画像診断用カテーテルセット及び画像診断用カテーテルを提供する。【解決手段】外管と前記外管よりも径方向内側に設けられ前記外管に対して相対的に軸方向に移動可能な内管とを備えるプルバック機構を備える画像診断用カテーテルと、前記画像診断用カテーテルをプライミングするためのプライミング用品と、を有し、前記プルバック機構よりも基端側のプライミング流路内に、生理食塩水を３００ｍｌ／ｍｉｎの流量で流した時に０．３ＭＰａ以上の圧力損失を生じる圧力損失部が設けられる画像診断用カテーテルセット。前記外管と前記外管よりも径方向内側に設けられ前記外管に対して相対的に軸方向に移動可能な内管とを備えるプルバック機構を有し、前記プルバック機構よりも基端側のプライミング流路内に、生理食塩水を３００ｍｌ／ｍｉｎの流量で流した時に０．３ＭＰａ以上の圧力損失を生じる圧力損失部が設けられる画像診断用カテーテル。【選択図】図５