JP2020162858A - Image diagnostic apparatus, image diagnostic system, catheter for image diagnosis, and priming method - Google Patents

Abstract

To provide an image diagnostic apparatus, an image diagnostic system, a catheter for image diagnosis, and a priming method which facilitate discharge of air from a lumen of the catheter for image diagnosis in priming the lumen.SOLUTION: The image diagnostic apparatus comprises: a control unit which acquires data for generating an image of a vessel of a living body from a signal transmission and reception unit positioned in the lumen of the catheter for image diagnosis; an attaching unit capable of attaching and detaching the catheter for image diagnosis; and a vibration generator which generates vibration transmitted to the catheter for image diagnosis via the attaching unit.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to diagnostic imaging equipment, diagnostic imaging systems, diagnostic imaging catheters and priming methods.

An diagnostic imaging system including a diagnostic imaging catheter and an diagnostic imaging apparatus is known (see, for example, Patent Documents 1 and 2).

JP-A-2018-153563 Japanese Unexamined Patent Publication No. 2004-337320

The diagnostic imaging catheter as described above has a very elongated lumen, and it is difficult to expel air from the lumen when priming.

In view of these points, the present disclosure provides a diagnostic imaging apparatus, a diagnostic imaging system, a diagnostic imaging catheter, and a priming method that easily discharge air from the lumen when priming the lumen of the diagnostic imaging catheter. With the goal.

The diagnostic imaging apparatus as the first aspect of the present invention includes a control unit that acquires data for generating an image of a vibrating vessel from a signal transmitting / receiving unit located in the lumen of a diagnostic imaging catheter, and the diagnostic imaging apparatus. It has a mounting portion to which the catheter can be attached and detached, and a vibration generator that generates vibration transmitted to the diagnostic imaging catheter via the mounting portion.

In one embodiment of the present invention, in the diagnostic imaging apparatus, the diagnostic imaging catheter has a telescope portion composed of a hand outer tube and a hand inner tube, and the mounting portion has the hand outer tube. It has a removable hand outer pipe attachment portion, and the vibration generator is located at the hand outer pipe attachment portion.

As one embodiment of the present invention, the diagnostic imaging apparatus further includes a mounting sensor that detects that the diagnostic imaging catheter has been mounted on the mounting portion, and the vibration generator detects the mounting sensor. It works according to the result.

As one embodiment of the present invention, the diagnostic imaging apparatus further has a pullback drive unit that pulls back a drive shaft having a tip portion where the signal transmission / reception unit is located to a predetermined position, and the control unit is the drive shaft. Operates the vibration generator only when is in the predetermined position.

As one embodiment of the present invention, the diagnostic imaging apparatus further includes a rotation drive unit that rotates the signal transmission / reception unit.

The diagnostic imaging system as a second aspect of the present invention generates an image of a living body vessel from a lumen, a diagnostic imaging catheter including a signal transmitting / receiving unit located in the lumen, and the signal transmitting / receiving unit. A diagnostic imaging device including a control unit for acquiring data to be used and a mounting portion to which the diagnostic imaging catheter can be attached and detached, and the diagnostic imaging device transmits the diagnostic imaging device to the diagnostic imaging catheter via the mounting portion. It has a vibration generator that generates the vibration to be generated.

In one embodiment of the present invention, in the diagnostic imaging system, the diagnostic imaging catheter has a telescope portion composed of a hand outer tube and a hand inner tube, and the hand outer tube has the permanent magnet. The vibration generator is composed of a magnetostrictive member that generates a magnetostrictive magnetic field due to the magnetic force of the permanent magnet by attaching the hand outer tube to the hand outer tube mounting portion.

A catheter for diagnostic imaging as a third aspect of the present invention has a catheter main body portion having a lumen and a telescope portion, and the telescope portion includes a hand outer tube provided with a permanent magnet and a hand inner tube. Consists of.

In the priming method as a fourth aspect of the present invention, a preparatory step for preparing a diagnostic imaging catheter having a lumen and an diagnostic imaging apparatus including a mounting portion and a vibration generator, and the diagnostic imaging catheter is the mounting portion. A vibration step in which the vibration generated by the vibration generator is transmitted to the diagnostic imaging catheter via the mounting portion, and a priming for priming the lumen during or after the vibration step. Has steps and.

According to the present disclosure, it is possible to provide a diagnostic imaging apparatus, a diagnostic imaging system, a diagnostic imaging catheter, and a priming method that easily discharge air from the lumen when priming the lumen of the diagnostic imaging catheter.

It is an external view which shows the diagnostic imaging system which concerns on one Embodiment of this invention in the state which performed the priming. FIG. 5 is an external view showing the diagnostic imaging catheter shown in FIG. 1 in a contracted state in which the catheter main body is most contracted. FIG. 5 is an external view showing the diagnostic imaging catheter shown in FIG. 1 in an extended state in which the catheter main body is most extended. It is a partial cross-sectional external view which shows the peripheral part of the liquid introduction part of the image diagnostic catheter shown in FIG. 1 enlarged. It is a partial cross-sectional external view which shows the peripheral part of the hand outer tube of the diagnostic imaging catheter shown in FIG. 1 in an enlarged manner. It is a partial cross-sectional external view which shows the peripheral part of the tip of the diagnostic imaging catheter shown in FIG. 1 enlarged. It is a conceptual diagram which shows the vibration generator located in the attachment part of the diagnostic imaging apparatus shown in FIG. It is a flowchart which shows the priming method which concerns on one Embodiment of this invention.

Hereinafter, the diagnostic imaging apparatus, the diagnostic imaging system, the diagnostic imaging catheter, and the priming method according to the embodiment of the present invention will be described in detail with reference to the drawings.

First, the diagnostic imaging system, the diagnostic imaging apparatus, and the diagnostic imaging catheter according to the embodiment of the present invention will be described in detail. As shown in FIG. 1, the diagnostic imaging system 1 according to the present embodiment includes a diagnostic imaging catheter 2 (hereinafter, also referred to as a catheter 2) and a diagnostic imaging device 3. The diagnostic imaging device 3 includes a motor drive unit 3a (hereinafter, also referred to as MDU3a), a control device 3b, and a display 3c.

The catheter 2 is introduced into a vessel such as a blood vessel in a living body such as a human body to image the inside of the vessel. As shown in FIG. 2, the catheter 2 has a proximal housing portion 4, a catheter main body portion 5, and a guide portion 6. The catheter main body 5 has a base end 7 having an opening 7a (see FIG. 4) and a tip 8 having a discharge port 8a (see FIG. 6), and is tubular around the central axis X1. That is, the catheter body 5 has a lumen 9 extending from the opening 7a to the outlet 8a. The lumen 9 is isolated from the external space S of the catheter main body 5 in the axial direction along the central axis X1 between the opening 7a and the discharge port 8a. The catheter body 5 is expandable and contractible between the most axially contracted contracted state as shown in FIG. 2 and the most axially extended contracted state as shown in FIG.

As shown in FIG. 4, the base end housing portion 4 has a liquid introduction portion 10 and a joint 11. The liquid introduction unit 10 has a liquid introduction port 10a into which a priming liquid such as a physiological saline solution (hereinafter, also referred to as a priming liquid) can be introduced, and a lumen 10b extending from the liquid introduction port 10a to the opening 7a. ..

The joint 11 is removable from the joint mounting portion 26a of the housing 26b of the rotary drive portion 26 of the MDU3a. The joint 11 has a tubular shape centered on the central axis X1, and the connector 12 is located inside the joint 11. The connector 12 is mechanically and electrically connected to the main shaft 26c of the rotary drive unit 26 of the MDU3a. The connector 12 has a tip shaft 12a centered on the central axis X1 which is located at the tip thereof and is integrally connected to the base end of the imaging core 13. The tip shaft 12a is rotatably supported by a pivot portion 14 located between the liquid introduction portion 10 and the joint 11. The pivot portion 14 and the tip shaft 12a are in close contact with each other over the entire circumference.

The hub 15 including the liquid introduction portion 10, the pivot portion 14, and the joint 11 is located on the tip side of the liquid introduction portion 10 and has a tubular tip tube portion 15a centered on the central axis X1. The base end of the hand inner pipe 16a made of a flexible pipe is integrally connected to the inner peripheral surface of the tip pipe portion 15a of the hub 15. As shown in FIG. 5, the tip of the hand inner tube 16a is located inside the hand outer tube 16b. The hand outer tube 16b is composed of an outer tube 17 composed of a flexible tube and a tubular unit connector 18 centered on the central axis X1. The base end of the outer tube 17 is integrally connected to the inner peripheral surface of the unit connector 18. The telescope portion 16 is composed of the hand inner tube 16a and the hand outer tube 16b. When the telescope portion 16 is in the contracted state, the catheter main body portion 5 is in the contracted state. When the telescope portion 16 is in the extended state, the catheter main body portion 5 is in the extended state.

The unit connector 18 has a sliding contact portion 18a that is in close contact with the outer peripheral surface of the hand inner pipe 16a in the circumferential direction and is relatively slidable in the axial direction. The tip of the hand inner tube 16a has a stopper 16a1 protruding outward in the radial direction. The hand inner pipe 16a is pulled out from the inside of the hand outer pipe 16b until the stopper 16a1 comes into contact with the step portion provided on the inner peripheral surface of the unit connector 18. The state in which the hand inner tube 16a is inserted deepest into the hand outer tube 16b is the contracted state, and the state in which the hand inner tube 16a is inserted the shallowest inside the hand outer tube 16b is the extended state. The outer peripheral surface of the unit connector 18 has a reduced diameter portion 18b that can be attached to and detached from the hand outer tube mounting portion 30 having a U shape of the MDU3a.

The tip of the hand outer tube 16b is integrally connected to the base end on the inner peripheral surface of the tubular relay connector 19 centered on the central axis X1. The tip of the flexible protective tube 20 is integrally connected to the inner peripheral surface of the relay connector 19. The protective tube 20 is located inside the hand inner tube 16a. As shown in FIG. 4, the base end of the protective tube 20 is terminated inside the base end of the hand inner tube 16a in the contracted state. The base end of the flexible tubular sheath 21 is integrally connected to the inner peripheral surface of the relay connector 19.

As shown in FIG. 6, the tip portion of the sheath 21 is integrally connected to the tip member 22. The tip member 22 has a tubular discharge pipe portion 22a centered on the central axis X1 for partitioning the discharge port 8a at the tip, and a tubular guide portion 6 integrally connected to the discharge pipe portion 22a and having the central axis X2. .. The central axis X2 is parallel to or substantially parallel to the central axis X1. The tip end portion of the sheath 21 is integrally connected to the base end portion on the inner peripheral surface of the discharge pipe portion 22a. The discharge port 8a discharges the priming liquid. The guide portion 6 has a lumen 6a into which a guide wire (not shown) is inserted. The guide portion 6 has a tip marker portion 6b in which the transmission of X-rays is suppressed.

As described above, the catheter main body 5 includes the tip tube portion 15a of the hub 15, the hand inner tube 16a, the hand outer tube 16b (outer tube 17 and the unit connector 18), the protective tube 20, the relay connector 19, the sheath 21, and the tip. It is composed of a discharge pipe portion 22a of the member 22 (see FIGS. 2 to 6).

As shown in FIG. 6, an imaging core 13 is arranged in the lumen 9 of the catheter main body 5. The imaging core 13 is composed of a signal transmission / reception unit 13a and a drive shaft 13b. The signal transmission / reception unit 13a is located in the lumen 9. The drive shaft 13b has a tip portion where the signal transmission / reception unit 13a is located. The signal transmission / reception unit 13a can transmit / receive a signal (ultrasonic wave and / or electromagnetic wave) to / from the vessel of a living body in order to image the vessel.

As shown in FIGS. 4 to 6, the drive shaft 13b is located inside the sheath 21, the relay connector 19, the protective tube 20, the hand inner tube 16a, and the tip tube portion 15a of the hub 15. The drive shaft 13b is formed by the coil shaft 23. The drive shaft 13b may be formed by a three-layer coil shaft 23 whose winding direction is alternately changed such as right-handed, left-handed, and right-handed. The tip of the drive shaft 13b (coil shaft 23) is integrally connected to the base end of the signal transmission / reception unit 13a. The base end of the drive shaft 13b (coil shaft 23) is integrally connected to the tip of the tip shaft 12a of the connector 12. The drive shaft 13b (coil shaft 23) transmits the rotation of the connector 12 about the central axis X1 to the signal transmission / reception unit 13a. The drive shaft 13b (coil shaft 23) can retract the signal transmission / reception unit 13a to the proximal end side when the catheter body 5 changes from the contracted state (see FIG. 2) to the extended state (see FIG. 3). .. The drive shaft 13b (coil shaft 23) can advance the signal transmission / reception unit 13a toward the tip end side when the catheter main body 5 changes from the extended state to the contracted state. Inside the coil shaft 23, a signal line 24 that electrically connects the signal transmission / reception unit 13a and the connector 12 to each other is located.

As shown in FIG. 1, the MDU3a includes a mounting portion 25 to which the catheter 2 can be attached and detached, a rotary drive unit 26 that rotates the signal transmission / reception unit 13a by rotating the drive shaft 13b, and a rotating drive shaft 13b. It has a pullback drive unit 27 that moves the rotation drive unit 26 so as to pull back to a predetermined position. The rotation speed of the drive shaft 13b may be selectable from a plurality of set values. One of the plurality of set values may be 1800 rpm. The predetermined position is a position where the catheter main body 5 is in an extended state. The control device 3b has a control unit 28 that acquires data for generating an image of a vessel of a living body from a signal transmission / reception unit 13a. The control unit 28 causes the signal transmission / reception unit 13a to transmit / receive a signal to / from the vessel of the living body while rotating the drive shaft 13b to the rotation drive unit 26 and moving the rotation drive unit 26 to the pullback drive unit 27. , Acquire data to generate an image of the vessel. The control unit 28 is composed of a processor such as a CPU. The display 3c displays an image of the vessel based on the data acquired by the control unit 28.

The rotary drive unit 26 has a housing 26b having a joint mounting portion 26a, a spindle 26c located inside the housing 26b, and a rotary drive source 26d that rotates the spindle 26c. When the joint 11 is attached to the joint attachment portion 26a, the spindle 26c is electrically connected to the connector 12, whereby the signal transmission / reception portion 13a and the control portion 28 are electrically connected. Further, when the joint 11 is attached to the joint attachment portion 26a, the spindle 26c is mechanically connected to the connector 12, whereby the drive shaft 13b is mechanically connected to the rotary drive source 26d. The rotary drive source 26d is composed of a motor. The rotary drive source 26d rotates the drive shaft 13b around the central axis X1 via the main shaft 26c and the connector 12.

The pullback drive unit 27 has a rotation drive source 27a such as a motor, and a ball screw mechanism 27b that moves the housing 26b forward and backward by the rotation drive source 27a. The ball screw mechanism 27b is composed of a screw shaft 27c that is pivotally supported by the base 29 and rotated by a rotation drive source 27a, and a nut 27d that is integrally connected to the housing 26b.

The hand outer pipe attachment portion 30 is integrally connected to the base 29, and the hand outer pipe 16b can be attached and detached. The joint mounting portion 26a and the hand outer tube mounting portion 30 constitute a mounting portion 25 to which the catheter 2 can be attached and detached.

Prior to imaging the vessel, the catheter 2 is primed to expel air from the lumen 9. The priming liquid is introduced from the liquid introduction unit 10 into the lumen 9 by a priming liquid introduction device composed of a syringe 31. The priming may be performed once before attaching the catheter 2 to the attachment portion 25 of the MDU3a, and then once again after attaching the catheter 2 to the attachment portion 25 of the MDU3a. The priming is preferably performed in the extended state where the volume of the lumen 9 is the largest.

It is advantageous to perform priming while vibrating the catheter 2 in order to suppress the amount of air bubbles remaining in the lumen 9. For this purpose, the diagnostic imaging apparatus 3 has a vibration generator 32 that generates vibration transmitted to the catheter 2 via the attachment portion 25. As shown in FIG. 7, the vibration generator 32 is located at the hand outer pipe mounting portion 30. The hand outer tube 16b has a permanent magnet 33. The vibration generator 32 is composed of a magnetostrictive member 32a that generates a bias magnetic field of a magnetostrictive oscillator by the magnetic force of a permanent magnet 33 by attaching the hand outer tube 16b to the hand outer tube mounting portion 30. That is, the vibration generator 32 is configured as a magnetostrictive oscillator that becomes operable by attaching the hand outer pipe 16b to the hand outer pipe mounting portion 30. The magnetostrictive member 32a is located inside the hand outer pipe mounting portion 30 having a U-shape forming a recess that opens upward in a cross section perpendicular to the central axis X1, and in the cross section, the shape of the hand outer pipe mounting portion 30. It has a U-shape along.

When the hand outer tube 16b is snap-fitted into the recess of the hand outer tube mounting portion 30, the permanent magnet 33 of the hand outer tube 16b is appropriately arranged so as to generate a bias magnetic field. In order to ensure such an appropriate arrangement, the relative position in the circumferential direction around the central axis X1 of both at the time of snap fitting between the hand outer pipe mounting portion 30 and the hand outer pipe 16b is regulated. Regulatory means may be provided. The regulating means may be a concave portion and a convex portion that engage with each other, or may be a display (line, figure and / or character, etc.) that serves as a mark for positioning. The recess of the hand outer pipe mounting portion 30 may be configured such that the hand outer pipe 16b is press-fitted.

The conductors forming the circuit 35 including the AC power supply 34 are wound around the first end and the second end of the magnetostrictive member 32a so that the winding directions are the same as each other. In the illustrated example, it is in the left-handed direction, but it may be in the right-handed direction. Therefore, when an alternating current flows through the circuit 35 while a bias magnetic field is generated by the permanent magnet 33 and the magnetostrictive member 32a, the magnetostrictive member 32a vibrates, and the vibration vibrates through the hand outer tube mounting portion 30 and the hand outer tube 16b. Is transmitted to the entire catheter 2. As a result, vibration is transmitted to the air bubbles remaining in the cavity 9, and the air bubbles are easily moved by the priming liquid. In this way, by performing priming while the catheter 2 is vibrating or after the catheter 2 is vibrated, the amount of air bubbles remaining in the lumen 9 can be suppressed.

The diagnostic imaging apparatus 3 may have a mounting sensor 36 that detects that the hand outer tube 16b is mounted on the hand outer tube mounting portion 30. The mounting sensor 36 may be a pressure sensor, a magnetic sensor that detects a bias magnetic field, or another sensor. The vibration generator 32 may operate (that is, vibrate) according to the detection result of the mounting sensor 36. The vibration generator 32 may be configured to operate for a predetermined time from the time when the attachment sensor 36 detects the attachment of the hand outer pipe 16b to the hand outer pipe attachment portion 30. The vibration generator 32 may be configured to operate in response to a signal from the control unit 28 only while the attachment sensor 36 detects the attachment of the hand outer pipe 16b to the hand outer pipe mounting portion 30. .. The vibration generator 32 may be configured to be operated by the control unit 28 only when the drive shaft 13b is in the pullback end position (predetermined position above).

The vibration generator 32 is preferably located at the hand outer tube attachment portion 30 in order to efficiently transmit the vibration to the entire inner cavity 9. However, the vibration generator 32 may be located at the joint mounting portion 26a, or may be located at a portion other than the mounting portion 25 in the MDU3a as long as the vibration can be transmitted to the lumen 9 via the mounting portion 25. The vibration generator 32 is not limited to the magnetostrictive oscillator, and various types such as a piezoelectric oscillator and an eccentric motor can be used.

Next, the priming method according to the embodiment of the present invention will be described in detail. Although the priming method according to the present embodiment uses the diagnostic imaging system 1 shown in FIGS. 1 to 7, it can also be applied when a diagnostic imaging system having another configuration is used. As shown in FIG. 8, the priming method according to the present embodiment includes a preparation step S1, a vibration step S2, and a priming step S3.

The preparation step S1 is a step of preparing the catheter 2 provided with the lumen 9 and the diagnostic imaging apparatus 3 including the attachment portion 25 and the vibration generator 32. The vibration step S2 is a step of transmitting the vibration generated by the vibration generator 32 to the catheter 2 via the attachment portion 25 in the attachment state in which the catheter 2 is attached to the attachment portion 25. The priming step S3 is a step of priming the lumen 9 during or after the vibration step S2.

According to the priming method according to the present embodiment, it is possible to facilitate the discharge of air from the lumen 9 when priming the lumen 9 of the catheter 2.

It goes without saying that the above-described embodiment is merely an example of the embodiment of the present invention and can be variously modified without departing from the gist of the invention.

For example, in the above embodiment, the catheter 2 has a drive shaft 13b that rotates a signal transmission / reception unit 13a in order to acquire data for generating an image of a vessel of a living body, but the signal transmission / reception unit 13a does not depend on rotation. It is not necessary to have the drive shaft 13b for such rotation when it is configured so that data can be acquired. Further, the configuration of the diagnostic imaging apparatus 3 can be variously changed according to such a catheter 2.

1 Diagnostic imaging system 2 Catheter 3 Diagnostic imaging device 3a MDU
3b Control device 3c Display 4 Base end housing part 5 Cauter body part 6 Guide part 6a Inner cavity 6b Tip marker part 7 Base end 7a Opening 8 Tip 8a Discharge port 9 Inner cavity 10 Liquid introduction part 10a Liquid introduction port 10b Inner cavity 11 Joint 12 Connector 12a Tip shaft 13 Imaging core 13a Signal transmitter / receiver 13b Drive shaft 14 Pivot 15 Hub 15a Tip tube 16 Telescope 16a Hand inner tube 16a 1 Stopper 16b Hand outer tube 17 Outer tube 18 Unit connector 18a Sliding contact 18b Shrinkage Diameter 19 Relay connector 20 Protective connector 20 Sheath 22 Tip member 22a Discharge pipe 23 Coil shaft 24 Signal line 25 Mounting 26 Rotating drive 26a Joint mounting 26b Housing 26c Main shaft 26d Rotation drive source 27 Pullback drive 27a Rotation drive source 27b Ball screw mechanism 27c Screw shaft 27d Nut 28 Control unit 29 Base 30 Hand outer tube mounting part 31 Syringe 32 Transducer 32a Magnetic strain member 33 Permanent magnet 34 AC power supply 35 Circuit 36 Mounting sensor X1, X2 Central axis S External space

Claims (9)

A control unit that acquires data for generating an image of a biological vessel from a signal transmission / reception unit located in the lumen of the diagnostic imaging catheter, a mounting portion to which the diagnostic imaging catheter can be attached and detached, and the mounting portion. An diagnostic imaging apparatus having a vibration generator that generates vibration transmitted to the diagnostic imaging catheter. The diagnostic imaging catheter has a telescope portion composed of an outer tube at hand and an inner tube at hand.
The mounting portion has a hand outer pipe mounting portion to which the hand outer pipe can be attached and detached.
The diagnostic imaging apparatus according to claim 1, wherein the vibration generator is located at the hand outer tube attachment portion. Further, it has a mounting sensor that detects that the diagnostic imaging catheter has been mounted on the mounting portion.
The diagnostic imaging apparatus according to claim 1 or 2, wherein the vibration generator operates according to a detection result of the mounting sensor. Further, it has a pullback drive unit that pulls back a drive shaft having a tip portion where the signal transmission / reception unit is located to a predetermined position.
The diagnostic imaging apparatus according to any one of claims 1 to 3, wherein the control unit operates the vibration generator only when the drive shaft is in the predetermined position. The diagnostic imaging apparatus according to any one of claims 1 to 4, further comprising a rotation driving unit that rotates the signal transmitting / receiving unit. A diagnostic imaging catheter including a lumen and a signal transmitter / receiver located in the lumen.
It has a control unit that acquires data for generating an image of a vessel of a living body from the signal transmission / reception unit, and an image diagnosis device including an attachment unit to which the image diagnosis catheter can be attached and detached.
An diagnostic imaging system in which the diagnostic imaging apparatus includes a vibration generator that generates vibrations transmitted to the diagnostic imaging catheter via the mounting portion. The diagnostic imaging catheter has a telescope portion composed of an outer tube at hand and an inner tube at hand.
The hand outer tube has the permanent magnet and
The sixth aspect of claim 6, wherein the vibration generator is composed of a magnetostrictive member that generates a bias magnetic field of a magnetostrictive vibrator by the magnetic force of the permanent magnet by attaching the outer tube to the outer tube attachment portion. Diagnostic imaging system. It has a catheter body with a lumen and a telescope,
A catheter for diagnostic imaging in which the telescope portion is composed of a hand outer tube provided with a permanent magnet and a hand inner tube. Preparatory steps to prepare a diagnostic imaging catheter with a lumen and an diagnostic imaging device with a mounting part and a vibration generator.
A vibration step in which the vibration generated by the vibration generator is transmitted to the diagnostic imaging catheter via the mounting portion in the mounted state in which the diagnostic imaging catheter is mounted on the mounting portion.
A priming method comprising a priming step of priming the lumen during or after the vibration step.

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