Catheter holder and catheter set

1. A catheter holder used to hold, in a predetermined state, a catheter having at least a portion accommodated within a wound holder tube, wherein the catheter holder comprises:

an attachment section configured to be attachable to the wound holder tube;

a support section formed to extend from the attachment section;

a fixing section provided on a second end side of the support section, which is opposite to a first end side of the support section on which the attachment section is provided, the fixing section being configured to hold an outer tube of the catheter exposed from an opening portion of the wound holder tube in a linear shape at a fixed position, the fixing section including a hub-side fixing part and a connector-side fixing part; and

a length adjustment part that makes a distance between the hub-side fixing part and the connector-side fixing part variable, wherein

the hub-side fixing part includes a first groove portion configured to accommodate a hub of the catheter therein, and a first opening portion configured to allow the hub to be inserted into the first groove portion therethrough,

the connector-side fixing part includes a second groove portion configured to accommodate a connector part of the catheter therein, and a second opening portion opened toward the same direction as the first opening portion and configured to allow the connector part to be inserted into the second groove portion therethrough, and

the hub-side fixing part has a snap-fit structure including a pair of protruding pieces facing each other with a gap therebetween.

2. The catheter holder according to claim 1 , further comprising:

a medical instrument holding part provided on the attachment section and configured to detachably fix a medical instrument attached to the catheter and to hold the medical instrument on an inner peripheral side of the wound holder tube.

3. A catheter holder set comprising:

a catheter including a sheath configured to be inserted into a body cavity of a living body, an outer tube provided on a base end side of the sheath, an inner shaft inserted into the outer tube to be movable back and forth, a connector part provided on a base end side of the outer tube and configured to accommodate the inner shaft therein, and a hub provided on a base end side of the inner shaft;

a holder tube configured to accommodate at least a portion of the sheath while said sheath is in a wound state therein; and

a catheter holder including an attachment section configured to be attachable to the holder tube, a support section formed to extend from the attachment section in a direction away from the holder tube, and a fixing section provided on a second end side of the support section, which is opposite to a first end side of the support section on which the attachment section is provided, the fixing section being configured to hold the outer tube in a linear shape at a fixed position by fixing the connector part and the hub, while the outer tube is exposed from an opening portion of the holder tube, the fixing section including a hub-side fixing part configured to fix the hub to restrict rotation of the hub and to release fixing of the hub when force is applied in a direction of relatively separating the hub therefrom, and a connector-side fixing part configured to fix the connector part with fixing force and to restrict a movement of the connector part in a direction away from an axial center of the outer tube,

wherein the hub-side fixing part includes a first groove portion configured to accommodate the hub therein, and a first opening portion configured to allow the hub to be inserted into the first groove portion therethrough,

the connector-side fixing part includes a second groove portion configured to accommodate the connector part therein, and a second opening portion opened toward the same direction as the first opening portion and configured to allow the connector part to be inserted into the second groove portion therethrough,

the hub-side fixing part has a snap-fit structure, and

the first opening portion has a gap which has a smaller length than an outer diameter of the hub so that the connector-side fixing part fixes the connector part with fixing force smaller than fixing force of the hub-side fixing part for fixing the hub.

4. The catheter holder according to claim 3 , wherein the fixing section holds the outer tube to be fixed in position in a state where the outer tube is rotationally moved by a predetermined distance, starting from the opening portion of the holder tube, to a winding direction side of the holder tube or in a direction away from the winding direction side in a state where a tangent of an outer contour line of the holder tube is parallel to an extending direction of the outer tube into which the inner shaft is inserted, or while the outer tube is being held in a linear shape relative to the tangent of the outer contour line of the holder tube.

5. The catheter holder according to claim 3 , wherein the support section includes a base portion formed to extend toward the hub-side fixing part so that an extension line of an extending direction of the support section overlaps a portion of the hub-side fixing part to which the force is applied when releasing the fixing of the hub.

6. The catheter holder according to claim 3 , further comprising:

a length adjustment part that makes a distance between the hub-side fixing part and the connector-side fixing part variable.