JP5547846B1 - Operation check device for chemical injection device, jig for operation check of chemical injection device, and package with operation check jig - Google Patents

Abstract

An operation check device and an operation check jig capable of easily and appropriately checking the operation of a chemical injection device by generating a drag force by a mechanism having a lower temperature dependency.
An operation checking jig 500 is a metal member (for example, a metal member) that is broken by a force received from a dummy slide member 420 when the dummy slide member 420 is slid by a chemical injection device holding a dummy main body member 410. Plate 510). The metal member breaks while the drug solution injection device holding the drug solution syringe slides the piston member to inject the drug solution into the living body through the dummy slide member 420 while providing the drug solution with the same drag force.
[Selection] Figure 1

Description

  The present invention relates to an operation check device for a chemical solution injection device, an operation check jig for the chemical solution injection device, and a package containing an operation check jig.

  As a fluoroscopic imaging apparatus that captures a fluoroscopic image of a living body, there are a CT (Computed Tomography) scanner, an MRI (Magnetic Resonance Imaging) apparatus, an angio apparatus, and the like. When these fluoroscopic imaging devices are used, a chemical solution such as a contrast medium or physiological saline may be injected into the living body. A chemical injection device that automatically performs this injection has been put into practical use.

  Such a chemical solution injection device can be detachably mounted with a chemical solution syringe. The chemical syringe has a cylinder member and a piston member, and the piston member is inserted into the cylinder member so as to be slidable relative to the cylinder member. A conduit for discharging the chemical is formed at the tip of the cylinder member of the chemical syringe. The chemical injection device has, for example, a piston drive mechanism configured with a drive motor, a slider mechanism, and the like. The piston drive mechanism pushes the piston member of the chemical syringe into the cylinder member, and the chemical solution in the cylinder member is discharged. It is possible to discharge.

  When injecting a chemical solution into a living body, first, one end side of the tube is connected to the conduit portion of the chemical syringe filled with the chemical solution in the cylinder member, and the other end side of the tube is connected to the living body. And a chemical | medical solution syringe is mounted | worn with a chemical | medical solution injection | pouring apparatus, and the chemical | medical solution in a cylinder member is inject | poured into a biological body through a tube by pushing a piston member in a cylinder member by a piston drive mechanism.

  In a chemical liquid injector, it is desired to always inject a chemical liquid at an injection pressure within a certain range. For this reason, the chemical solution injection device has a function of detecting a drag acting on the piston drive mechanism as an injection pressure, measuring the injection pressure in real time, and displaying it on a monitor (see, for example, Patent Document 1).

  In the current medical field, maintenance inspection and daily inspection of the operation of the chemical liquid injector are required. The inspection is performed in a manner that simulates the actual injection operation, and it is necessary to confirm that the injection pressure is within a certain range at all timings from the beginning to the end of the injection operation.

Specifically, the current inspection work is performed in the following manner, for example.
First, one end of the inspection tube is connected to the conduit portion of the chemical syringe filled with water in the cylinder member. The inspection tube is provided with a water pressure gauge for detecting the water pressure in the inspection tube. A hollow needle is connected to the other end of the inspection tube.
Next, the drug solution syringe is attached to the drug solution injector, and the other end of the inspection tube and the hollow needle are inserted into an empty PET bottle.
This completes the setting.
Thereafter, the piston member is pushed into the cylinder member by the piston drive mechanism, whereby water in the cylinder member is discharged from the tip of the hollow needle to the plastic bottle via the tube. Here, since the hollow needle has a small diameter, a desired drag is given to the piston drive mechanism.
At this time, the inspection operator confirms in parallel whether each of the pressure value indicated by the water pressure gauge and the value of the injection pressure monitored and displayed by the chemical injection device is always within a certain range. . For example, when a contrast medium is injected into a patient's body, it takes about 30 seconds to 1 minute to complete the injection of the contrast medium. It is necessary to continue checking the water pressure gauge and the monitor display at the same time for about 1 minute from the second.

Such inspection work has the following problems.
First of all, preparation and clean-up are difficult, and inspection takes time.
Moreover, since pressure is applied to the chemical syringe during the inspection, the chemical syringe may be damaged during the inspection.
Moreover, since it is necessary to continuously check the water pressure gauge and the monitor display at the same time, the inspection work requires skill.

On the other hand, Patent Document 2 describes an operation confirmation device used for confirming the operation of a chemical liquid injector.
The operation check device includes a dummy main body member that is held in the chemical solution injection device like the cylinder member of the chemical solution syringe, a dummy slide member that is slid by the chemical solution injection device like the piston member of the chemical solution syringe, and a dummy resistance mechanism And have. The dummy resistance mechanism is the same as when the chemical solution injection device holding the dummy body member slides the dummy slide member and the chemical solution injection device holding the chemical solution syringe slides the piston member to inject the chemical solution into the living body. The movement resistance is generated.
For this reason, according to this operation check device, since the chemical injection device can be operated in the same manner as when actually injecting the chemical into the living body, the operation of the chemical injection device before actually injecting the chemical into the living body. Can be easily confirmed.

JP 2003-290343 A Japanese Patent No. 5027888

  However, the dummy resistance mechanism of the operation confirmation apparatus of Patent Document 2 is composed of a damper mechanism such as Kinechek (registered trademark), for example. According to the study of the present inventor, such a damper mechanism has a certain degree of temperature dependence.

  For this reason, the inventor of the present application considered that it is necessary to generate a drag (resistance) by a mechanism having a smaller temperature dependency in order to check the operation of the chemical injection device with higher accuracy.

  The present invention has been made in view of the above problems, and an operation confirmation device and an operation confirmation that can easily and appropriately perform an operation check of a chemical injection device by generating a drag force by a mechanism with less temperature dependency. Provide jigs.

The present invention
An operation confirmation device used for confirming an operation of a chemical liquid injector that slides the piston member of a chemical syringe having a cylinder member and a piston member slidably inserted into the cylinder member and injects a chemical liquid into a living body. ,
A dummy main body member held by the chemical liquid injector as in the cylinder member;
A dummy slide member which is slidably provided with respect to the dummy main body member, and is slid by the chemical liquid injector similarly to the piston member;
An operation confirmation jig that is attached to the dummy main body member and applies a drag force to the chemical liquid injector when the dummy slide member is slid by the chemical liquid injector holding the dummy main body member;
Have
The operation check jig is
A metal member that is broken by a force received from the dummy slide member when the dummy slide member is slid by the chemical liquid injector holding the dummy body member;
The metal member has a drag equivalent to that when the chemical injection device holding the chemical solution syringe slides the piston member to inject the chemical into the living body to the chemical injection device via the dummy slide member. Provided is a device for confirming the operation of a chemical injection device that breaks while being applied.

The present invention also provides:
Provided is an operation check jig for a chemical solution injection apparatus, which is the operation check jig in the operation check apparatus for a chemical solution injection apparatus of the present invention.

The present invention also provides:
An operation check jig of the chemical injection device of the present invention,
A bag containing the operation check jig in a sealed state;
Provided is a package containing an operation check jig.

  According to the present invention, it is possible to easily and appropriately check the operation of the chemical liquid injector by generating a drag force by a mechanism having a smaller temperature dependency.

It is a figure which shows the operation | movement confirmation apparatus which concerns on 1st Embodiment, Among these, (a)-(c) is a sectional side view, (d) is a top view, (e) And (f) is a perspective view. It is a figure which shows the jig | tool for operation confirmation which concerns on 1st Embodiment, Among these, (a) is a top view, (b) is a side view, (c) is a front view, (d) and (e) are perspective views. FIG. It is a figure which shows the material of the jig | tool for operation | movement confirmation which concerns on 1st Embodiment, Among these, (a) is a side view, (b) is a top view (bottom view), (c) is a front view. It is a perspective view which shows the operation | movement confirmation apparatus which concerns on 1st Embodiment, and the injection | pouring head of a chemical | medical solution injection apparatus. It is a perspective view which shows a chemical | medical solution syringe and the injection | pouring head of a chemical | medical solution injection apparatus. It is a perspective view of a chemical injection device. It is a perspective view of a chemical injection system. It is a figure which shows an example of the display in the display screen of the display apparatus of a chemical injection device. It is a side view for demonstrating the operation | movement confirmation jig | tool which concerns on 1st Embodiment. It is a sectional side view for demonstrating the jig | tool for operation confirmation which concerns on 2nd Embodiment. It is a side view which shows the jig | tool for operation confirmation which concerns on 3rd Embodiment. It is a figure for demonstrating the jig | tool for operation confirmation which concerns on 4th Embodiment, among these, (a) is a top view, (b) and (c) are sectional side views, (d) is the operation confirmation jig | tool. It is a top view (bottom view) which shows the material of a tool. It is a top view which shows the jig | tool for operation confirmation which concerns on 5th Embodiment. It is a top view which shows the package containing the jig | tool for operation confirmation which concerns on 6th Embodiment. It is a figure which shows the operation confirmation apparatus which concerns on 7th Embodiment, Among these, (a) and (b) is a sectional side view, (c) is a perspective view, (d) and (e) are front views. It is a figure which shows the operation confirmation apparatus which concerns on 8th Embodiment, Among these, (a) is a sectional side view, (b)-(d) is a perspective view, (e) is a sectional side view. It is a figure which shows the operation confirmation apparatus which concerns on 9th Embodiment, (a) is a side view, (b) and (c) is a top view, (d) is a perspective view, (e) is a perspective view It is. 18A is a side view of the operation confirmation jig according to the tenth embodiment, FIG. 18B is a front view of the operation confirmation jig according to the tenth embodiment, and FIG. FIG. 18D is a front view of the operation confirmation jig according to the eleventh embodiment, and FIG. 18D is a side view of the operation confirmation jig according to the eleventh embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same components are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

  In the following, in order to simplify the description, the description may be made assuming that the positional relationship (vertical relationship, etc.) of each component is the relationship shown in each drawing. However, the positional relationship in this description does not limit the positional relationship during use or manufacture of the operation check device and the operation check jig.

[First Embodiment]
FIG. 1 is a view showing an operation checking apparatus 400 according to the first embodiment, in which (a) to (c) are side sectional views, (d) is a plan view, and (e) and (f) are perspective views. FIG. FIG. 2 is a view showing an operation checking jig 500 according to the first embodiment, in which (a) is a plan view, (b) is a side view, (c) is a front view, (d) and ( e) is a perspective view of the operation confirmation jig 500 as viewed obliquely from the rear. 3A and 3B are diagrams showing materials of the operation checking jig 500 according to the first embodiment, in which (a) is a side view, (b) is a plan view (bottom view), and (c) is a front view. It is. FIG. 4 is a perspective view showing the operation check device 400 and the injection head 110 of the chemical solution injection device 100 according to the first embodiment. The operation check device 400 and the injection before the operation check device 400 is attached to the injection head 110. A state in which the head 110 is separated from each other is shown. FIG. 5 is a perspective view showing the chemical syringe 200 and the injection head 110 of the chemical injection device 100, and shows a state where the chemical syringe 200 and the injection head 110 are separated from each other before the chemical syringe 200 is attached to the injection head 110. . FIG. 6 is a perspective view of the chemical liquid injector 100. FIG. 7 is a perspective view of the chemical liquid injection system 1000. FIG. 8 is a view showing an example of display on the display screen 105 a (FIG. 6) of the display device 105 of the chemical liquid injector 100.

  Before describing the operation confirmation device 400 in detail, first, the chemical solution injection system 1000 shown in FIG. 7 will be described.

  The chemical solution injection system 1000 includes a CT scanner 300 as an example of a fluoroscopic imaging device, a chemical solution injection device 100 (FIG. 6), a chemical solution syringe 200 (FIG. 5), an operation check device 400 (FIGS. 4 and 1), Have

As shown in FIG. 7, the CT scanner 300 includes, for example, a fluoroscopic imaging unit 301 and an imaging control unit 302. The fluoroscopic imaging unit 301 and the imaging control unit 302 are connected via a communication network (not shown). It is configured to be able to communicate with each other. The imaging control unit 302 controls the operation of the fluoroscopic imaging unit 301, and the fluoroscopic imaging unit 301 captures a fluoroscopic image of a living body under the control of the imaging control unit 302.
Before a fluoroscopic image of the living body is taken by the fluoroscopic imaging unit 301, a chemical solution such as a contrast medium is injected into the living body by the chemical solution injection device 100 in advance.

  The chemical injection device 100 is for injecting a chemical into a living body using a chemical syringe 200 (FIG. 5). As shown in FIG. 6, for example, an injection control unit 101 and an injection head 110 configured separately from each other. And have. The injection control unit 101 and the injection head 110 are connected to each other via, for example, the communication cable 102 and can communicate with each other via the communication cable 102. The injection control unit 101 incorporates a computer unit (not shown) and controls the operation of a piston drive actuator (not shown) of the injection head 110.

As shown in FIG. 5, the chemical syringe 200 includes a cylinder member 210 and a piston member 220 that is slidably inserted into the cylinder member 210.
The cylinder member 210 has a cylindrical cylinder body 211, and a conduit section 212 is formed at the center of the front end of the cylinder body 211. Portions other than the conduit portion 212 at the front end portion of the cylinder body 211 are closed. The rear end of the cylinder main body 211 is opened, and the piston member 220 is slidably inserted into the cylinder main body 211 from the opening. A cylinder flange 213 is formed at the rear end of the cylinder body 211 so as to project in an annular shape outward from the circumferential surface of the rear end of the cylinder body 211 in the radial direction of the cylinder body 211.
The piston member 220 includes a rod-shaped piston main body 221 and a piston flange 222 projecting in an annular shape from the rear end of the piston main body 221 in a direction orthogonal to the axial direction of the piston main body 221. The piston member 220 is inserted into the cylinder member 210 so as to be slidable with respect to the cylinder member 210.

  The liquid syringe 200 can be detachably attached to the injection head 110.

  The injection head 110 has a rear portion 111 and a front portion 113 that are integrally formed with each other. On the upper surface of the front portion 113, a semi-cylindrical concave portion 114 into which the chemical syringe 200 is inserted from above and a flange holding groove 120 into which the lower portion of the cylinder flange 213 is inserted are formed.

Further, the injection head 110 has a pusher 116 that moves the piston member 220 forward and backward, a piston drive actuator (not shown) that is a drive source for moving the pusher 116 forward and backward, and power of the piston drive actuator. And a driving force transmission mechanism (not shown) for transmitting to the pusher 116.
The pusher 116, the piston drive actuator, the drive force transmission mechanism, and the like constitute a piston drive mechanism that moves the piston member 220 forward and backward.

  The piston drive actuator is, for example, an ultrasonic motor that does not generate a magnetic field even when activated, and is driven under the control of the injection control unit 101. The power of the piston drive actuator is transmitted to the pusher 116 via a drive force transmission mechanism such as a screw mechanism, whereby the pusher 116 moves forward and backward.

  The piston drive actuator is incorporated in the rear part 111 of the injection head 110, for example. And in the rear part 111 of the injection | pouring head 110, a piston drive actuator and the rear-end part of the pusher 116 are mutually connected via the drive force transmission mechanism. A holding claw 116 a that holds the piston flange 222 is formed at the front end of the pusher 116.

In order to attach the chemical syringe 200 to the injection head 110, the chemical syringe 200 is recessed from above so that the lower portion of the cylinder flange 213 is held by the flange holding groove 120 and the piston flange 222 is held by the holding claws 116a. 114 and the lower peripheral surface of the cylinder member 210 is supported by the recess 114.
By holding the cylinder flange 213 in the flange holding groove 120, the cylinder member 210 is restricted from moving forward relative to the injection head 110.

  Further, the injection head 110 has a built-in load cell (not shown) for detecting the pressure applied to the pusher 116, that is, the pressure by which the pusher 116 presses the piston member 220. The pressure detected by the load cell is transmitted to the injection control unit 101.

  As shown in FIG. 6, the injection control unit 101 includes a display device 105. The injection control unit 101 performs control to display the pressure detected by the load cell of the injection head 110 in a graph on the display screen 105a of the display device 105 in real time.

  In order to inject a chemical solution into a living body, one end side of a tube (not shown) is connected to the conduit portion 212 of the chemical solution syringe 200 filled with the chemical solution in the cylinder member 210, and the other end side of the tube is connected to the living body. Then, the chemical solution syringe 200 is attached to the injection head 110. In this state, the piston drive actuator advances the pusher 116 under the control of the injection control unit 101, whereby the piston member 220 is pushed into the cylinder member 210, and the chemical solution in the cylinder member 210 causes the conduit portion 212 and the tube to move. It is injected into the living body through this order. That is, the chemical injection device 100 injects the chemical into the living body by sliding the piston member 220 of the chemical syringe 200 with respect to the cylinder member 210 while holding the cylinder member 210 of the chemical syringe 200.

  At this time, the load cell of the injection head 110 detects the pressure for press-fitting the piston member 220 into the cylinder member 210 in real time, and the detected pressure is transmitted to the injection control unit 101 and displayed in a graph on the display screen 105a in real time. Is done.

The operation check device 400 (FIG. 1) according to the present embodiment is used for operation check of the chemical liquid injector 100 (FIG. 6). That is, the operation check apparatus 400 according to the present embodiment slides the piston member 220 of the chemical syringe 200 having the cylinder member 210 and the piston member 220 slidably inserted into the cylinder member 210 to inject the chemical into the living body. It is an apparatus used for confirming the operation of the chemical injection device 100.
As shown in FIG. 4, the operation check device 400 includes a dummy main body member 410, a dummy slide member 420, and an operation check jig 500. The dummy main body member 410 is held by the chemical liquid injector 100 in the same manner as the cylinder member 210. The dummy slide member 420 is provided on the dummy main body member 410 so as to be slidable with respect to the dummy main body member 410, and is slid and moved by the chemical liquid injector 100 in the same manner as the piston member 220 of the chemical liquid syringe 200.
The operation checking jig 500 is attached to the dummy main body member 410. The operation checking jig 500 applies a drag force to the chemical liquid injector 100 when the dummy slide member 420 is slid by the chemical liquid injector 100 holding the dummy main body member 410.
The operation confirmation jig 500 is a metal member (for example, a metal plate 510) that is broken by a force received from the dummy slide member 420 when the dummy slide member 420 is slid by the chemical injection device 100 holding the dummy main body member 410. including.
This metal member gives the drug solution injection device 100 via the dummy slide member 420 with a drag equivalent to that when the drug solution injection device 100 holding the drug solution syringe 200 slides the piston member 220 to inject the drug solution into the living body. While breaking.

  Further, the operation check jig 500 according to the present embodiment is the operation check jig 500 in the operation check apparatus 400 according to the present embodiment.

  Details will be described below.

  First, the dummy main body member 410 and the dummy slide member 420 will be described with reference to FIG.

  In the present embodiment, the dummy main body member 410 includes a dummy cylinder 430 having a cylindrical outer shape equivalent to the cylinder main body 211 of the cylinder member 210, and a jig holding portion 440 connected to the front of the dummy cylinder 430. Have.

The dummy cylinder 430 holds the dummy slide member 420 so that the dummy slide member 420 can slide in one direction with respect to the dummy cylinder 430. In order to prevent the dummy slide member 420 from falling off the dummy cylinder 430, it is preferable to provide a dropping prevention mechanism (not shown).
The sliding direction of the dummy slide member 420 relative to the dummy cylinder 430 is the central axis direction of the outer cylindrical shape of the dummy cylinder 430. A bearing portion 431 for bearing the dummy slide member 420 is formed inside the dummy cylinder 430. This restricts the dummy slide member 420 from moving relative to the dummy cylinder 430 in a direction intersecting the central axis direction of the outer cylindrical shape of the dummy cylinder 430.
A dummy flange 413 having an outer shape equivalent to the cylinder flange 213 is formed at the rear end portion of the dummy cylinder 430. That is, the dummy flange 413 projects in an annular shape outward from the rear end of the dummy cylinder 430 in the radial direction of the dummy cylinder 430.

  The dummy slide member 420 includes a rod-like body 421 that is long in one direction, and a receiving portion 425 that is provided at the rear end portion of the rod-like body 421 and receives a force from the pusher 116. A dummy flange 422 having an outer shape equivalent to the piston flange 222 is formed at the rear end portion of the receiving portion 425. That is, the dummy flange 422 projects in an annular shape in the direction perpendicular to the axial direction of the rod-shaped body 421 at the rear end portion of the dummy slide member 420.

  When the dummy slide member 420 is pushed forward by the chemical injection device 100, the tip of the rod-like body 421 presses a part of the operation confirmation jig 500 (a pressing force receiving portion 531 described later) to confirm the operation. The jig 500 is broken.

  The jig holding portion 440 is formed with a holding recess 450 that detachably holds the operation checking jig 500. For example, the holding recess 450 is formed in a size and shape that can accommodate the operation checking jig 500 with almost no gap. In the jig holding portion 440, the portion that defines the front end portion of the holding recess 450 constitutes a movement restricting portion 460. The movement restricting portion 460 operates in the direction of the slide movement when the dummy slide member 420 is slid forward by the chemical injection device 100 with the operation checking jig 500 held in the holding recess 450. The confirmation jig 500 is restricted from moving relative to the holding recess 450.

  Thus, in the case of this embodiment, the dummy main body member 410 includes the holding recess 450 that detachably holds the operation confirmation jig 500 and the direction in which the dummy slide member 420 is slid by the chemical injection device 100. , And a movement restricting portion 460 that restricts the movement checking jig 500 from moving relative to the holding recess 450.

  The operation checking jig 500 is attached to and detached from the holding recess 450 by moving the operation checking jig 500 relative to the holding recess 450 in a direction intersecting the moving direction of the dummy slide member 420. Can do. More specifically, the operation checking jig 500 can be mounted on the holding recess 450 by moving the operation checking jig 500 from the upper side to the lower side and inserting it into the holding recess 450 (FIG. 1 (e). ), (A) etc.). Further, the operation checking jig 500 can be detached from the holding recess 450 by moving the operation checking jig 500 in the holding recess 450 upward (see FIGS. 1F and 1C).

  Further, a notch-shaped portion 470 is formed at the front end portion of the jig holding portion 440. As a result, the portion of the operation checking jig 500 that has been pushed and deformed by the dummy slide member 420 can project forward of the jig holding portion 440 via the notch-shaped portion 470 (FIG. 1B). )). Further, the notch-shaped portion 470 is opened upward, and when the operation check jig 500 is removed from the holding recess 450, a deformed portion of the operation check jig 500 is extracted above the notch-shaped portion 470. (FIGS. 1C and 1F).

  Next, the operation checking jig 500 will be described with reference to FIG. 2A to 2D show the operation confirmation jig 500 in a state before use (before the pair of opposed portions 520 breaks), and FIG. 2E shows the pair of opposed portions. The operation confirmation jig 500 in a state where 520 is broken is shown.

  In the present embodiment, the operation checking jig 500 is a disposable tool that can be attached to and detached from the dummy main body member 410.

  As shown in FIG. 2, the operation checking jig 500 is composed of, for example, a single metal plate 510. That is, the operation checking jig 500 is a structure obtained by processing the metal plate 510, for example, and is configured by bending and cutting the metal plate 510, for example. The operation confirmation jig 500 is formed, for example, vertically and symmetrically.

  The metal plate 510 has, for example, a pair of plate-like facing portions 520 that face each other, and a connecting portion 530 that connects one end portions of the pair of facing portions 520 to each other.

  Each facing portion 520 is a rectangular plate-like portion that is long in one direction, and is disposed along the moving direction of the dummy slide member 420 when the operation check jig 500 is used. That is, in the state where the operation confirmation jig 500 is inserted into the holding recess 450, the longitudinal direction of each facing portion 520 is in a state along the moving direction of the dummy slide member 420. The pair of facing portions 520 face each other in parallel.

  At least a part of the connecting portion 530 constitutes a pressing force receiving portion 531 that is pressed by the dummy slide member 420.

Here, a direction orthogonal to the moving direction of the dummy slide member 420 and also orthogonal to the direction perpendicular to the surface of the facing portion 520 is referred to as a width direction W (FIGS. 2A and 4). .
In the case of the present embodiment, the central portion of the connecting portion 530 in the width direction W constitutes a pressing force receiving portion 531 that is pressed by the dummy slide member 420.
The pressing force receiving portion 531 is separated from each portion of the connecting portion 530 other than the pressing force receiving portion 531 (hereinafter referred to as an adjacent portion 532) by a pair of cuts 515 formed in the connecting portion 530.

  Then, when the pressing force receiving portion 531 is pushed by the dummy slide member 420 in a direction (front side shown in FIG. 2) from the one end portion side to the other end portion 527 side of the pair of facing portions 520, the pair of facing portions 520. Is broken while applying a drag force to the dummy slide member 420. The operation checking jig 500 is configured so that the magnitude of the drag is the same as that when the chemical injection device 100 holding the chemical syringe 200 slides the piston member 220 to inject the chemical into the living body. Has been.

  The pressing force receiving portion 531 is bent convexly toward the other end 527 side of the pair of opposing portions 520. For this reason, the pressing force receiving portion 531 can be easily pressed in the direction from the one end portion side to the other end portion 527 side of the pair of facing portions 520 by the tip end portion of the dummy slide member 420.

  More specifically, the pressing force receiving portion 531 includes an arc-shaped portion 531a formed in an arc-shaped convex shape toward the other end portion 527 side of the pair of facing portions 520, and the arc-shaped portion 531a and each facing portion 520. And parallel facing portions 531b that are positioned in between and face the respective facing portions 520 in parallel. That is, the pressing force receiving portion 531 has a pair of parallel facing portions 531b that face each other in parallel with each of the pair of facing portions 520.

  Each of the folded-back portions 531c at the boundary between each of the pair of facing portions 520 and the pressing force receiving portion 531 protrudes toward the side opposite to the other end portion 527 side (the rear side in FIG. 2) of the pair of facing portions 520. It is formed in an arc shape (arch shape).

  Further, each of the adjacent portions 532 is formed in a convex arc shape (arch shape) toward the side opposite to the other end portion 527 side of the pair of opposing portions 520 (the rear side in FIG. 2).

  In addition, ribs 521 are formed in the pair of facing portions 520 along both ends of the facing portion 520 in the width direction W, respectively. Thereby, the shape retention property of the opposing part 520 is improving.

  The outer diameter of the tip of the rod-like body 421 of the dummy slide member 420 is equal to the facing distance D (FIG. 2B) between the pair of parallel facing portions 531b. The dimension of the portion to be pressed in the direction perpendicular to the pair of facing portions 520 is equal to the facing distance D between the pair of parallel facing portions 531b, whereby the pressing force receiving portion 531 is pressed by the dummy slide member 420. When the opposing portion 520 is broken, the pair of parallel opposing portions 531b can be maintained parallel to the opposing portion 520, respectively.

  A groove is formed in the metal member, and the metal member is broken along the groove. More specifically, for example, a groove 511 is formed on at least one surface of the metal plate 510, and the metal plate 510 is broken along the groove 511. In the case of the present embodiment, for example, the groove 511 is formed only on one surface (outer surface) of each facing portion 520. Each facing portion 520 is formed with a pair of grooves 511 parallel to each other. In the present embodiment, the direction in which the groove 511 extends is parallel to the longitudinal direction of the facing portion 520. That is, in each facing portion 520, the pair of grooves 511 extend in parallel to each other.

  Next, an example of a method for producing the operation check jig 500 will be described with reference to FIG.

First, a flat, flat metal plate 510 having a certain thickness and being elongated in one direction is prepared.
Next, a pair of linear cuts 515 that are parallel to each other and extend in the longitudinal direction of the metal plate 510 at the central portion in the longitudinal direction of the metal plate 510, that is, the portion that becomes the connecting portion 530 (FIG. 3B). ). A groove 511 is formed on the extension line of each cut line 515.
Further, the ribs 521 formed side by side in the longitudinal direction of the metal plate 510 are respectively cut off, and the portions located on both sides of the cut portion in the longitudinal direction of the metal plate 510 are bent, respectively. 521 is formed.
Next, the center part in the longitudinal direction of the metal plate 510 is bent. The bending direction is the direction in which the ribs 521 aligned in the longitudinal direction of the metal plate 510 face each other (see FIG. 2B), that is, the direction of arrow A in FIG. As a result, the pair of facing portions 520 of the metal plate 510 are in a state of facing each other in parallel.
Next, in the connecting portion 530, the portion between the pair of cuts 515, that is, the portion that becomes the pressing force receiving portion 531 is directed toward the region between the pair of opposed portions 520 (in the direction of arrow B in FIG. 3A). The pressing force receiving portion 531 is formed by being deformed by being pushed in.
Thereby, the operation checking jig 500 shown in FIGS. 2A to 2D is obtained.

  The material of the metal plate 510 can be any metal or metal compound that is solid at room temperature. The material and thickness of the metal plate 510 can be appropriately selected according to the required drag magnitude. The material of the metal plate 510 may be a pure metal made of a single metal element, an alloy, or a metal compound other than those. As an example, the metal plate 510 can be made of aluminum.

  Note that there may be a plurality of types of chemical syringes 200 that have different drag forces when pressing the piston member 220. In this case, it is possible to prepare an operation checking jig 500 that generates corresponding drags according to the required drags of a plurality of types.

  Here, an example of an ideal value of the drag generated by the operation checking jig 500 will be described.

In the case of the chemical liquid injector 100 for CT, the maximum pressure applied to the chemical liquid syringe 200 having a volume of 100 ml is, for example, 21 kg / cm ² , and the force in this case is 168 kgf (1647 N).
On the other hand, the operation checking jig 500 can be designed to generate a pressure of, for example, about 1 kg / cm ² or more and 21 kg / cm ² or less. In this case, the pressing force receiving portion 531 is pressed to form a pair of opposing surfaces. The force required to break and deform the portion 520 can be about 8 kgf (78 N) or more and 168 kgf (1647 N) or less. That is, the operation checking jig 500 can be designed to break at, for example, 8 kgf or more and 168 kgf or less.

Further, in the case of the chemical syringe 200 having a volume of 200 ml, the maximum pressure is, for example, 21 kg / cm ² as in the case of the volume of 100 ml. However, in order to press the piston member 220 because the cross-sectional area is large. A large force is required. Specifically, for example, the force at the maximum pressure is 350 kgf (3432 N).
In the case where the chemical syringe 200 having a volume of 200 ml is used, in order to cause the operation confirmation jig 500 to generate a pressure of about 1 kg / cm ² or more and 21 kg / cm ² or less in the same manner as described above, the operation confirmation jig is used. 500 may be designed to break at 16.67 kgf (163N) or more and 350 kgf (3432N) or less.

As described above, in order to generate a pressure of about 1 kg / cm ² or more and 21 kg / cm ² or less by the operation confirmation jig 500, the operation confirmation jig 500 is designed to break at 8 kgf or more and 350 kgf or less. good.

  In order to suppress deterioration over time of the operation confirmation jig 500, the surface of the metal plate 510 may be subjected to rust prevention treatment. Examples of the rust prevention treatment include plating treatment, alumite treatment, coating treatment, heat treatment and the like.

  Next, the operation confirmation of the chemical injection device 100 using the operation confirmation device 400 will be described.

  Note that the operation check of the chemical solution injection device 100 using the operation check device 400 may be performed as a check immediately before the chemical solution injection device 100 injects the chemical solution into the living body, or as a periodic check or a daily check of the chemical solution injection device 100. You can go.

  First, as shown in FIGS. 1A and 1D, the operation checking jig 500 is inserted and held in the holding recess 450 of the dummy main body member 410. The direction of the operation check jig 500 in the holding recess 450 may be any direction as long as the other end portion 527 is positioned forward and the connecting portion 530 is positioned rearward. As shown in FIG. The opposing portions 520 may be arranged side by side, or a pair of opposing portions 520 may be arranged vertically as shown in FIG. In a state where the operation checking jig 500 is held in the holding recess 450, the operation checking jig 500 is positioned coaxially with the rod-shaped body 421 in front of the rod-shaped body 421 of the dummy slide member 420.

Next, the operation check device 400 is attached to the injection head 110 of the chemical solution injection device 100 (see FIG. 4). That is, the lower part of the dummy cylinder 430 is inserted into the recess 114 from above so that the lower part of the dummy flange 413 is held by the flange holding groove 120 and the dummy flange 422 is held by the holding claw 116a. Is supported by the recess 114.
Since the dummy flange 413 is held in the flange holding groove 120 in this way, the dummy cylinder 430 and thus the entire dummy main body member 410 are restricted from moving forward relative to the injection head 110. Yes.
Further, the movement restricting portion 460 restricts the operation checking jig 500 from moving forward relative to the dummy main body member 410.

  Next, the chemical solution injection device 100 is operated in the same manner as when the chemical solution is actually injected into the living body using the chemical syringe 200. Then, the dummy slide member 420 is pushed into the dummy main body member 410 by the pusher 116.

Accordingly, the pressing force receiving portion 531 is gradually pushed by the dummy slide member 420 in the direction from one end portion side to the other end portion 527 side of the pair of facing portions 520, that is, forward, and the pair of facing portions 520 is The ruptures gradually and evenly (see FIGS. 1B and 2E).
That is, the breakage of one facing portion 520 progresses along a pair of grooves 511 formed in the one facing portion 520, and the breakage of the other facing portion 520 is also formed in the other facing portion 520. It progresses along the pair of grooves 511.
The central portion in the width direction W of the portion where the fracture has progressed in the facing portion 520 is deformed so as to face the portion of the facing portion 520 where the fracture has not progressed yet, and is taken into the parallel facing portion 531b. The central portion in the width direction W of the portion where the fracture has progressed in the facing portion 520 is deformed so as to follow the original parallel facing portion 531b and be located on the same plane as the initial parallel facing portion 531b.
Further, as the breakage progresses, the folded portion 531c moves to the other end portion 527 side of the pair of opposed portions 520.

  When the pressing force receiving portion 531 is pushed by the dummy slide member 420 in this way, the other end portion 527 of the pair of facing portions 520 is restricted by the movement restricting portion 460, so that the other end portion with respect to the dummy main body member 410. The position of 527 remains constant.

  When the fracture progresses in this way, the operation confirmation jig 500 applies a substantially constant drag force to the load cell of the chemical solution injector 100 via the dummy slide member 420. This drag force is a force necessary for the pair of opposed portions 520 to break and deform. In addition, it is thought that the force required for a deformation | transformation of a pair of opposing part 520 is larger rather than the magnitude | size of the force required for the fracture | rupture itself of a pair of opposing part 520. FIG.

  When the rupture progresses in this way, the load cell of the chemical injection device 100 detects the drag given from the operation check jig 500 via the dummy slide member 420 in real time, and sends the detected drag to the injection control unit 101. Send. In the display device 105 of the injection control unit 101, the graph display 710 (see FIG. 8) of the drag value detected in this way is displayed in real time on the display screen 105a.

  The advancement of the dummy slide member 420 is stopped by the advancement of the dummy slide member 420 by a preset pressing distance. Even when the advance of the dummy slide member 420 is stopped, the breakage of the pair of facing portions 520 does not progress to the other end portion 527, and the pressing force receiving portion 531 is connected to the facing portion 520 and the adjacent portion 532. Thus, the pressing distance is set.

  Since the drag generated by the operation checking device 400 is equivalent to the drag generated when the drug solution syringe 200 is used to inject a drug solution into the living body, the graph displayed on the display screen 105a when there is no problem in the operation of the drug solution injection device 100. Is a graph equivalent to that when the chemical solution is injected into the living body using the chemical solution syringe 200.

  The operator can determine whether or not there is a problem in the operation of the chemical liquid injector 100 by checking the displayed graph display 710.

  For example, a limit pressure line display 711 showing an upper limit pressure value and a lower limit pressure value based on the target pressure value may be added to the graph display 710, for example. For example, the upper limit pressure value may be 1.1 times the target pressure value, and the lower limit pressure value may be 0.9 times the target pressure value. By doing in this way, the operator can discriminate | determine more easily whether there exists a problem in operation | movement of the chemical injection device 100. FIG.

For example, as shown in FIG. 8, in addition to the graph display 710, the display screen 105 a may display a display 720 about the average pressure and a display 730 of other parameters. Examples of the parameter display 730 include displaying an injection rate, an injection amount, and an injection time. For example, when the pressure was set to 10.0 kg / cm ^2, by which the average pressure as shown in FIG. 8 becomes 10.0 kg / cm ^2, the operator, it is no problem for the operation of chemical liquid injector 100 Can be confirmed. In addition, when the injection rate is set to 0.5 ml / sec, the injection amount is set to 100 ml, and the injection time is set to 3 minutes and 20 seconds, as shown in FIG. It can be confirmed that there is no problem in the operation of the chemical liquid injector 100.

  In addition, when the detected pressure exceeds the upper limit pressure value or falls below the lower limit pressure value, the injection control unit 101 notifies the operator (voice notification, display notification, etc.), Calibration of the chemical liquid injector 100 may be promoted.

Here, the chemical injection device 100 is configured to automatically check the following items when the power is turned on, for example.
The piston member 220 is moved back and forth by a minute amount to check whether the moving speed and moving amount of the piston member 220 are normal.
In a state where the piston member 220 is stationary, to ensure that the pressure load cell detects is 0 (zero) kg / cm ^2.
-Check that none of the operation buttons are operated.

  However, the above-described automatic check by the chemical injection device 100 only allows full stroke operation when the chemical injection device 100 is pressurized at a constant pressure (the pusher 116 presses the piston member 220 and applies a load to the load cell). Whether it is possible cannot be confirmed. Here, the full stroke operation refers to the operation of the pusher 116 from the start to the end of the injection operation for 100 ml, for example, when the chemical syringe 200 having a volume of 100 ml is used.

Under such circumstances, by using the operation checking jig 500 according to the present embodiment, a constant pressure can be continuously applied over the full stroke. For example, when the operation checking jig 500 corresponding to the chemical syringe 200 having a volume of 100 ml is used, a constant pressure can be continuously applied from the start to the completion of the injection operation for 100 ml.
Therefore, by performing the operation confirmation using the operation confirmation jig 500 according to the present embodiment, (1) confirmation as to whether the pressure detected by the chemical injection device 100 is correct, and (2) constant It is possible to confirm whether or not a full stroke operation is possible in a pressurized state. In particular, it is possible to confirm whether or not a mechanical part such as a ball screw constituting the driving force transmission mechanism can operate normally in a pressurized state at a constant pressure by checking (2) above.

  When the operation check of the chemical injection device 100 using the operation check device 400 is completed, the operation check device 400 is removed from the injection head 110, and the used operation check jig 500 is further removed from the holding recess 450 of the dummy main body member 410. Remove (see FIGS. 1 (f) and (c)). Further, the pusher 116 is returned to the initial position before the dummy slide member 420 is pressed.

According to the first embodiment as described above, the operation check device 400 includes the dummy main body member 410, the dummy slide member 420, and the operation check jig 500, and the operation check jig 500 is a dummy. It includes a metal plate 510 that is broken by a force received from the dummy slide member 420 when the dummy slide member 420 is slid by the chemical injection device 100 that holds the main body member 410. Then, the metal plate 510 has a drag force equivalent to that when the chemical solution injection device 100 holding the chemical solution syringe 200 slides the piston member 220 to inject the chemical solution into the living body via the dummy slide member 420. Break while giving to. For this reason, the action confirmation device 400 can easily reproduce the drag equivalent to that of the chemical syringe 200 that generates a substantially constant drag regardless of the relative positions of the cylinder member 210 and the piston member 220.
Therefore, by using the operation check device 400, the drug solution injection device 100 can be operated in the same manner as when the drug solution is actually injected into the living body, and the operation check of the drug solution injection device 100 can be performed. Therefore, the operation of the chemical liquid injector 100 can be easily confirmed.
Here, the magnitude of the force required for the fracture (and deformation) of the metal plate 510 is extremely small in temperature dependence. That is, in the present embodiment, it is possible to easily and appropriately check the operation of the chemical liquid injector 100 by generating a drag force by a mechanism with less temperature dependency.

  Further, since the metal member included in the operation checking jig 500 is the metal plate 510, a structure that generates a certain drag force can be easily realized.

  In addition, since the metal member (metal plate 510) is formed with a groove 511, and the metal member (metal plate 510) breaks along the groove 511, variation in drag due to the breakage of the metal member (metal plate 510) is suppressed. The drag can be easily set to a desired value.

Further, the metal member (metal plate 510) is opposed to each other and is disposed along the moving direction of the dummy slide member 420, and a pair of opposed portions 520 and one end portions of the pair of opposed portions 520 are disposed between each other. Are connected to each other. At least a part of the connecting portion 530 constitutes a pressing force receiving portion 531 to be pressed by the dummy slide member 420. Then, when the pressing force receiving portion 531 is pushed by the dummy slide member 420 in the direction from the one end portion side to the other end portion 527 side of the pair of facing portions 520, the pair of facing portions 520 holds the drug solution syringe 200. The drug solution injection device 100 is broken while applying a drag force equivalent to that when the drug solution injection device 100 slides and moves the piston member 220 to the living body to the drug solution injection device 100 via the dummy slide member 420.
By using the operation confirmation jig 500 having the metal member (metal plate 510) having such a structure, the reproducibility of a desired drag is improved, and a substantially constant drag regardless of the degree of progress of fracture. Can be generated.

  Further, since the pressing force receiving portion 531 is convexly bent toward the other end portion 527 side of the pair of opposing portions 520, the pressing force receiving portion 531 can be easily opposed to the pair of opposing ends by the tip of the dummy slide member 420. It can be pressed toward the other end of the part 520.

  Further, since the pressing force receiving portion 531 has a pair of parallel facing portions 531b facing in parallel with each of the pair of facing portions 520, the drag generated by the operation check jig 500 in the initial state and breakage are generated. The drag generated by the operation confirmation jig 500 in the advanced state can be made substantially equal.

  In addition, the dimension of the portion of the dummy slide member 420 that presses the pressing force receiving portion 531 in the direction perpendicular to the pair of facing portions 520 is equal to the facing distance D between the pair of parallel facing portions 531b. Therefore, the pressing force receiving portion 531 can be pressed by the dummy slide member 420 while maintaining the facing distance D between the pair of parallel facing portions 531b. As a result, the magnitude of the drag generated by the operation check jig 500 can be maintained substantially constant regardless of the progress of the breakage of the operation check jig 500.

Further, when the width direction W is a direction orthogonal to the moving direction of the dummy slide member 420 and also orthogonal to the perpendicular direction of the facing portion 520, both end portions of the facing portion 520 in the width direction W Since the ribs 521 are respectively formed along the shape, the shape retention of the facing portion 520 is improved. This also allows the magnitude of the drag generated by the operation check jig 500 to be maintained substantially constant regardless of the degree of breakage of the operation check jig 500.
According to the study of the present inventor, when the rib 521 is not formed in the facing portion 520, as shown in FIGS. 9A and 9B, as the breakage progresses, a pair of facing portions are gradually formed. The 520 may be deformed in a direction away from each other. As a result of the deformation of the pair of opposing portions 520, the curvature of the folded portion 531c changes as the breakage progresses, and the magnitude of the drag generated by the operation checking jig 500 gradually changes. there is a possibility.
In the present embodiment, the occurrence of such a phenomenon can be suppressed by forming the rib 521 in the facing portion 520.

[Second Embodiment]
FIG. 10A is a side sectional view showing an operation checking jig 500 according to the second embodiment. The operation check jig 500 according to the present embodiment is different from the operation check jig 500 according to the first embodiment in the points described below, and is otherwise in the operation check according to the first embodiment. It is configured in the same manner as the jig 500 for use. In FIG. 10A, the rib 521 is not shown, but the operation checking jig 500 preferably has the rib 521 as in the first embodiment.

FIG. 10B is a side cross-sectional view showing an operation check jig 500 that is different from the operation check jig 500 according to the second embodiment in that it does not have a bearing member 810 as a curvature maintaining mechanism. is there.
According to the inventor's study, as the operation check jig 500 breaks, the curvature of the folded portion 531c gradually increases (the radius of curvature of the folded portion 531c gradually decreases). The drag generated by the tool 500 may gradually change (increase) (see FIG. 10B).

  Therefore, the operation checking jig 500 according to the present embodiment uses the pair of facing portions 520 to calculate the curvature of the folded portion 531c located at the boundary between the portion folded after the break and the portion before the break. It has a curvature maintaining mechanism that maintains a constant value or less when the facing portion 520 is broken.

  The curvature here is, for example, the curvature of the surface of the folded portion 531c in a cross section parallel to the moving direction of the dummy slide member 420 and perpendicular to the pair of facing portions 520. The surface of the folded portion 531c may be the outer surface of the folded portion 531c or the inner surface of the folded portion 531c.

  In the case of the present embodiment, the curvature maintaining mechanism includes a bearing member 810 held between a portion folded after the break and a portion before the break in the folded portion 531c. More specifically, the curvature maintaining mechanism is configured by only the bearing member 810, for example. The bearing member 810 is, for example, a cylindrical roller. The outer diameter of the bearing member 810 is equal to the facing distance between the facing portion 520 and the parallel facing portion 531b.

As shown in FIG. 10A, the bearing member 810 is held in the same state in the folded portion 531c regardless of the degree of breakage progress, and maintains the curvature of the folded portion 531c substantially constant. As a result, the operation checking jig 500 can generate a substantially constant drag regardless of the progress of the breakage.
When the breakage of the facing portion 520 progresses, the central portion in the width direction W of the portion where the breakage has progressed in the facing portion 520, that is, after the breakage, the folded portion 531c is first formed, and the parallel facing portion 531b continues. The portion to be taken in is deformed along the peripheral surface of the bearing member 810 and folded back. The bearing member 810 is always maintained in contact with the curved surface inside the folded portion 531c.

In this embodiment, the operation confirmation jig 500 does not have the pressing member 820 as in the third embodiment described later, but if the processing accuracy of the metal plate 510 and the bearing member 810 is good. Even if the holding member 820 is not provided, it is considered that the bearing member 810 can be stably held at the folded portion 531c.
That is, when the metal plate 510 shown in FIG. 3 is bent and deformed to form the pressing force receiving portion 531 as shown in FIG. 2, the bearing member 810 is disposed on the inner peripheral side of each portion that becomes the folded portion 531 c. To do. Thus, the folded portion 531c is formed by the pressing force receiving portion 531 deforming along the bearing member 810, and the boundary portion between the folded portion 531c and the parallel facing portion 531b is along the peripheral surface of the bearing member 810. Therefore, the metal plate 510 is bent and deformed slightly toward the facing portion 520 side, so that the metal plate 510 has a shape that appropriately suppresses the dropout of the bearing member 810 from the folded portion 531c.

  According to the second embodiment as described above, since the operation checking jig 500 has the curvature maintaining mechanism, the curvature of the folded portion 531c is set to a constant value when the pair of facing portions 520 are broken. The following can be maintained. Therefore, regardless of the degree of progress of breakage of the pair of opposing portions 520, the operation checking jig 500 can generate a substantially constant drag.

  Further, since the curvature maintaining mechanism includes the bearing member 810, the shape of the folded portion 531c can be maintained by supporting the inner peripheral surface of the folded portion 531c by the bearing member 810, and the fracture has progressed in the facing portion 520. The central portion in the width direction W of the portion can be smoothly and ideally deformed along the outer peripheral surface of the bearing member 810.

[Third Embodiment]
FIG. 11 is a side view showing an operation checking jig 500 according to the third embodiment. 11A shows a state where the pressing member 820 and the metal plate 510 are separated, and FIG. 11B shows a state where the pressing member 820 is assembled to the metal plate 510. The operation check jig 500 according to the present embodiment is different from the operation check jig 500 according to the second embodiment described above in the points described below. In other respects, the operation check jig 500 is different from the second embodiment. The operation confirmation jig 500 is configured in the same manner.

  The operation checking jig 500 according to the present embodiment includes a pressing member 820 for suppressing the dropout of the bearing member 810 from the folded portion 531c.

  As shown in FIG. 11A, the pressing member 820 includes, for example, a pair of plate-like portions 821 facing each other in parallel with each other, and a connecting portion 822 that connects one end portions of these plate-like portions 821 to each other. ,have. The other end portion of the plate-like portion 821 constitutes a pressing portion 823 that presses the bearing member 810.

  The pressing member 820 can be configured, for example, by bending a metal plate that is long in one direction at the center thereof. Alternatively, the pressing member 820 may be a resin molded product.

  As shown in FIG. 11 (b), the pressing member 820 is inserted between the pair of facing portions 520 of the metal plate 510 from the front, first from the pressing portion 823, thereby holding the pressing portions 823 of the pair of plate-like portions 821. Thus, the bearing member 810 can be pressed backward to prevent the bearing member 810 from falling off the folded portion 531c.

  Since the folded portion 531c moves when the metal plate 510 breaks, the pressing member 820 also moves to the left in FIG. 11B along with the movement of the folded portion 531c, and the bearing member 820 always supports the bearing. The member 810 is kept pressed toward the rear.

  According to the third embodiment as described above, since the bearing member 810 can be prevented from falling off from the folded portion 531c by the pressing member 820, the curvature of the folded portion 531c can be more reliably increased by the bearing member 810. It can be maintained below a certain value.

[Fourth Embodiment]
FIG. 12 is a view for explaining an operation checking jig 500 according to the fourth embodiment. Among these, (a) is a plan view of the operation confirmation jig 500, (b) is a side sectional view of the operation confirmation jig 500 (before fracture), and (c) is a side sectional view of the operation confirmation jig 500 ( (D) is a plan view (bottom view) showing the material of the operation checking jig 500. The operation check jig 500 according to the present embodiment is different from the operation check jig 500 according to the second embodiment in the points described below, and the operation check according to the second embodiment is otherwise performed. It is configured in the same manner as the jig 500 for use.

  In the second embodiment, the example in which the curvature maintaining mechanism is the bearing member 810 has been described. However, in the present embodiment, the curvature maintaining mechanism includes the spacer member 830. The spacer member 830 is a flat plate-like member that is long in one direction, and is made of a flexible material such as resin. The width of the spacer member 830 is substantially constant. The spacer member 830 is affixed to the inner surface of the metal plate 510. More specifically, the spacer member 830 is continuously affixed across the inner surface of the facing portion 520, the inner surface of the folded portion 531c, the inner surface of the parallel facing portion 531b, and the front surface of the arc-shaped portion 531a.

  As shown in FIGS. 12B and 12C, the bearing member 810 is deformed as the metal plate 510 is deformed as the fracture progresses. That is, the bearing member 810 is deformed together with the metal plate 510 so as to always have a shape that follows the shape of the inner surface of the metal plate 510 while being attached to the inner surface of the metal plate 510.

  Thus, the spacer member 830 can maintain the facing distance between the parallel facing portion 531b and the facing portion 520 to be almost twice the thickness of the spacer member 830, regardless of the progress of the breakage of the metal plate 510. The curvature of the folded portion 531c can be maintained substantially constant.

  As shown in FIG. 12A, the spacer member 830 is preferably disposed between the pair of grooves 511 in the width direction W. Accordingly, when the facing portion 520 breaks, it is not necessary to break the spacer member 830 together with the facing portion 520, so that separation of the spacer member 830 when the facing portion 520 breaks can be suppressed.

  In order to produce the operation checking jig 500 according to the present embodiment, a spacer member 830 is formed on the inner surface of the metal plate 510 before bending (FIG. 3) as shown in FIG. paste. After that, as described in the first embodiment, the metal plate 510 is bent to form a pair of facing portions 520 and a pressing force receiving portion 531, and as shown in FIGS. The operation confirmation jig 500 shown is obtained.

  According to the fourth embodiment as described above, the same effect as that of the second embodiment can be obtained. Further, since the curvature maintaining mechanism is the spacer member 830 attached to the metal plate 510, the curvature maintaining mechanism can be prevented from falling off from the metal plate 510.

[Fifth Embodiment]
FIG. 13 is a plan view showing an operation checking jig 500 according to the fifth embodiment. Among these, FIG. 13A is a plan view of the operation checking jig 500 before breaking, and FIG. 13B is a plan view of the operation checking jig 500 in a state in which the breaking has progressed. The operation check jig 500 according to the present embodiment is different from the operation check jig 500 according to the first embodiment in the points described below, and is otherwise in the operation check according to the first embodiment. It is configured in the same manner as the jig 500 for use.

  In the second to fourth embodiments described above, the curvature of the folded portion 531c gradually increases as shown in FIG. 10B because the operation checking jig 500 has the curvature maintaining mechanism. The example which suppresses was demonstrated. In contrast, in the present embodiment, an example will be described in which the drag generated by the operation checking jig 500 can be maintained substantially constant even when the curvature of the folded portion 531c gradually increases. In other words, in this embodiment, when the curvature of the folding | returning part 531c becomes large gradually, it suppresses that drag becomes large gradually.

As shown in FIG. 13, in the case of the present embodiment, the pair of grooves 511 formed in one facing portion 520 has a facing distance between the pair of grooves 511 in at least a part of the section in the longitudinal direction. It gradually decreases toward the other end 527. Here, the said some area is an area where a fracture | rupture progresses at an initial stage. More specifically, in the partial section, the pair of grooves 511 are formed in a curved shape.
Similarly, in the pair of grooves 511 formed in the other facing portion 520, the facing distance between the pair of grooves 511 gradually decreases toward the other end portion 527 in at least a part of the section in the longitudinal direction. It has become.

  Thereby, compared with the case where a pair of groove | channel 511 is mutually parallel over the full length, the initial stage drag at the time of a fracture | rupture progress can be enlarged relatively. Therefore, even when the curvature of the folded portion 531c gradually increases as the breakage progresses, it is possible to suppress the drag from gradually increasing.

  According to the fifth embodiment as described above, in the pair of grooves 511 formed in the facing portion 520, the facing distance between the pair of grooves 511 is the other end portion 527 at least in a section where the breakage progresses at the initial stage. It is formed in a curvilinear shape that gradually decreases toward. Therefore, even when the curvature of the folded portion 531c gradually increases as the breakage progresses, it is possible to suppress the drag from gradually increasing.

[Sixth Embodiment]
FIG. 14 is a plan view showing a package 600 with an operation check jig according to the sixth embodiment. The operation check jig-containing package 600 includes the operation check jig 500 according to any one of the above-described embodiments, and the bag body 650 that houses the operation check jig 500 in a sealed state. . In order to suppress deterioration over time of the operation confirmation jig 500, the operation confirmation jig 500 is vacuum packaged in the bag body 650, or the bag body 650 is filled with an inert gas such as nitrogen gas. Preferably it is. The bag body 650 can be made of resin, for example. The bag body 650 may be visible light transmissive or may be opaque to visible light. When the bag body 650 is visible light transmissive, it can be easily recognized that the operation checking jig 500 is contained in the bag body 650. The operation check jig 500 may be individually packaged in a bag body 650, or a plurality of operation check jigs 500 may be accommodated in one bag body 650.

  When the operation checking jig 500 is used, the operation checking jig 500 can be easily taken out from the bag body 650 by tearing the bag body 650 by hand or cutting it with scissors or the like.

  According to the sixth embodiment as described above, the operation check jig-containing package 600 includes the operation check jig 500 and the bag body 650 that houses the operation check jig 500 in a sealed state. . Therefore, the operation confirmation jig 500 can be protected by the bag body 650, and deterioration of the operation confirmation jig 500 with time can be suppressed.

[Seventh Embodiment]
FIG. 15 is a view showing an operation checking apparatus 400 according to the seventh embodiment, in which (a) and (b) are side sectional views, (c) is a perspective view, and (d) and (e) are front views. FIG. The operation check apparatus 400 according to the present embodiment is different from the operation check apparatus 400 according to the first embodiment in the points described below, and is otherwise the same as the operation check apparatus 400 according to the first embodiment. It is configured. In the present embodiment, the operation checking jig 500 is the same as any one of the first to fifth embodiments.

  In the case of the present embodiment, the holding recess 450 formed in the jig holding portion 440 is open toward the front rather than upward. The operation check jig 500 can be inserted into and removed from the holding recess 450 by moving the operation check jig 500 relative to the holding recess 450 in the moving direction of the dummy slide member 420. That is, as shown in FIG. 15A, the operation check jig 500 can be inserted into the holding recess 450 by moving the operation check jig 500 relatively rearward with respect to the holding recess 450. The operation checking jig 500 can be removed from the holding recess 450 by moving the operation checking jig 500 forward relative to the holding recess 450.

  In the case of this embodiment, the front end portion of the jig holding portion 440 is slidable relative to the jig holding portion 440 in a direction orthogonal to the moving direction of the dummy slide member 420. A slide gate member 480 is provided. More specifically, the slide gate member 480 is held by the jig holding portion 440 so as to be slidable in the vertical direction relative to the jig holding portion 440, for example.

  The slide gate member 480 has a disk-shaped main body 481 arranged in a direction orthogonal to the moving direction of the dummy slide member 420. The main body portion 481 is formed with a slide hole 482 that penetrates the main body portion 481 back and forth.

  The slide hole 482 is a long hole that is long in the vertical direction. The fixing pin 490 for fixing the slide gate member 480 to the jig holding portion 440 has an outer diameter that allows the body portion to be inserted into the slide hole 482 and an outer diameter that prevents the head from passing through the slide hole 482. Has been. Then, the body portion of the fixing pin 490 is fixed to the front end portion of the jig holding portion 440 from the front through the slide hole 482, so that the slide gate member 480 can slide up and down with respect to the jig holding portion 440. It is hold | maintained at the jig | tool holding | maintenance part 440 so that it may become.

A notch-shaped portion 483 is formed in the lower portion of the main body portion 481 of the slide gate member 480. The notch shape portion 483 constitutes a part of the opening 405 formed at the front end portion of the jig holding portion 440. More specifically, a portion excluding the lower end portion of the opening 405 is configured by the notch-shaped portion 483.
On the other hand, a notch shape portion 921 facing the notch shape portion 483 is formed on the upper surface side of the lower portion of the front end portion of the jig holding portion 440. The notch-shaped part 921 constitutes the other part of the opening 405.
As shown in FIG. 15D, when the slide gate member 480 is lowered downward, that is, when the slide gate member 480 is closed, the notch-shaped portion 483 and the notch-shaped portion 921 are combined to form a notch-shaped portion. An opening 405 is formed between 483 and the notch-shaped portion 921.
As shown in FIG. 15E, in the state where the slide gate member 480 is fully raised, that is, the slide gate member 480 is opened, an opening 405 is formed between the notch shape portion 483 and the notch shape portion 921. However, the notch shape portion 483 and the notch shape portion 921 may be separated from each other.

  The opening 405 communicates with the holding recess 450, and the operation checking jig 500 is inserted into and removed from the holding recess 450 through the opening 405, or directed forward in the operation checking jig 500 through the opening 405. The portion that deforms can be projected forward of the opening 405.

The edges (upper edge and left and right edges) of the notch-shaped part 483 in the main body part 481 of the slide gate member 480 constitute a movement restricting part 485.
On the other hand, the edge portions (lower edge portion and left and right edge portions) of the notch shape portion 921 at the front end portion of the jig holding portion 440 constitute a movement restricting portion 920.
The movement restricting portion 485 and the movement restricting portion 920 are portions that restrict the movement check jig 500 from moving forward when the slide gate member 480 is closed. That is, the movement restricting portion 485 and the movement restricting portion 920 are configured so that the operation checking jig 500 moves relative to the holding recess 450 in the direction in which the dummy slide member 420 is slid by the chemical injection device 100. To regulate.

  Thus, the movement restricting portion 485 is provided on the slide gate member 480 that can move up and down relatively with respect to the jig holding portion 440 having the holding recess 450. Therefore, the movement restricting portion 485 is movable relative to the holding recess 450 in a direction orthogonal to the moving direction of the dummy slide member 420.

  A lower end portion of the main body portion 481 of the slide gate member 480 constitutes an insertion portion 486. By closing the slide gate member 480, the insertion portion 486 is inserted into the insertion groove 910 formed in the jig holding portion 440. The insertion groove 910 is a groove formed in the left-right direction in a portion slightly rearward from the front end of the lower upper surface of the jig holding portion 440. When the insertion portion 486 of the slide gate member 480 is inserted into the insertion groove 910, the lower portion of the slide gate member 480 is restricted from moving forward when the slide gate member 480 is closed. Note that the upper portion of the slide gate member 480 is restricted from moving forward by the fixing pin 490.

  The operation of this embodiment will be described below.

  In order to insert the operation checking jig 500 into the holding recess 450, first, the slide gate member 480 is opened, and the holding recess 450 is inserted into the holding recess 450 from the front of the opening 405. At this time, the direction of the operation checking jig 500 is set so that the other end 527 is on the front side. The pair of opposed portions 520 may be arranged vertically or may be arranged on the left and right. In the example shown in FIG. 15, the pair of facing portions 520 are arranged up and down.

  FIG. 15E shows a state in which the operation checking jig 500 is inserted into the holding recess 450 and the slide gate member 480 is still open. FIG. 15E shows a state in which the operation confirmation jig 500 is lifted upward from the bottom surface of the holding recess 450.

When the operation checking jig 500 is inserted into the holding recess 450, the slide gate member 480 is closed as shown in FIG. As a result, the other end portion 527 of the operation checking jig 500 is in a state where the movement is restricted by the movement restricting portion 485 and the movement restricting portion 920.
That is, by moving the movement restricting portion 485 relative to the holding recess 450 with the operation checking jig 500 inserted into the holding recess 450, the movement restricting portion 485 causes the operation checking jig 500 to move against the holding recess 450. The relative movement is restricted.

  After that, when the operation check is performed, the pressing force receiving portion 531 is pressed by the dummy slide member 420, so that the operation check jig 500 is deformed as in the first embodiment. At this time, as shown in FIGS. 15B and 15C, the portion of the operation checking jig 500 that deforms forward can project forward through the opening 405.

  When the operation check jig 500 is removed from the holding recess 450 after the operation check is completed, the slide gate member 480 is opened, and the operation check jig 500 is moved forward and removed from the holding recess 450.

  According to the seventh embodiment as described above, the same effect as that of the first embodiment can be obtained.

[Eighth Embodiment]
FIG. 16 is a diagram showing an operation checking device 400 according to the eighth embodiment, in which (a) is a side sectional view, (b) to (d) are perspective views, and (e) is a side sectional view. . The operation check apparatus 400 according to the present embodiment is different from the operation check apparatus 400 according to the first embodiment in the points described below, and is otherwise the same as the operation check apparatus 400 according to the first embodiment. It is configured. In the present embodiment, the operation checking jig 500 is the same as any one of the first to fifth embodiments.

  In the first and seventh embodiments, the example in which the other end portion 527 of the facing portion 520 of the operation checking jig 500 is restricted by the dummy main body member 410 has been described. On the other hand, in this embodiment, the movement of the adjacent portion 532 is restricted by the dummy main body member 410.

In the case of this embodiment, each of the portions other than the pressing force receiving portion 531 (each of the adjacent portions 532) in the connecting portion 530 of the metal plate 510 constitutes a locked portion that is locked to the dummy main body member 410. Yes. That is, if the width direction W is a direction perpendicular to the moving direction of the dummy slide member 420 and also perpendicular to the direction perpendicular to the facing portion 520, the central portion of the connecting portion 530 in the width direction W Constitutes a pressing force receiving portion 531. The pressing force receiving portion 531 is separated from each portion (adjacent portion 532) other than the pressing force receiving portion 531 in the connecting portion 530 by a pair of cuts 515 formed in the connecting portion 530. Each portion (adjacent portion 532) other than the pressing force receiving portion 531 in the connecting portion 530 constitutes a locked portion that is locked to the dummy main body member 520.
Then, when the locked portion (adjacent portion 532) is locked to the dummy main body member 410, the operation checking jig 500 is set to the dummy in the direction in which the dummy slide member 420 is slid by the chemical solution injection device 100. Movement relative to the main body member 410 is restricted.

  The dummy main body member 410 includes a holding portion that holds the dummy slide member 420 so as to be slidable, a slide cylinder 950 provided in the holding portion, and a pair of locked portions, that is, the adjacent portions 532 that are locked. Part 441. The holding part is constituted by a dummy cylinder 430 and a jig holding part 440, for example.

  For example, the outer shape of the jig holding part 440 is formed in a cylindrical shape. The slide cylinder 950 is formed in a cylindrical shape. The inner diameter of the slide cylinder 950 is equal to the outer diameter of the jig holding part 440. The slide cylinder 950 is externally inserted into the jig holding part 440 so as to be slidable back and forth along the outer surface of the jig holding part 440. That is, the slide cylinder 950 is held by the holding portion and can slide relative to the holding portion in the sliding direction of the dummy slide member 420 relative to the dummy main body member 410. It is assumed that a drop prevention mechanism (not shown) is formed in the slide cylinder 950 and the jig holding portion 440 so that the slide cylinder 950 does not drop forward from the jig holding portion 440.

  The dummy main body member 410 is formed with a pair of left and right engaging portions 441, for example. The pair of locking portions 441 are, for example, each formed in a columnar shape and arranged coaxially with each other. The pair of locking portions 441 are separated from each other at an interval of at least the width dimension of the pressing force receiving portion 531. The outer diameter of the locking portion 441 is set so that the radius of curvature of the outer peripheral surface of the locking portion 441 and the radius of curvature of the inner peripheral surface of the adjacent portion 532 are equal to each other.

  At the front end portion of the jig holding portion 440, a support bracket 442 that supports the locking portion 441 is provided so as to protrude forward from the front end surface of the jig holding portion 440. The support brackets 442 are arranged side by side so as to face each other, and support the locking portions 441 on the mutually facing surfaces.

  A plate-like front end 951 that closes the front end of the slide cylinder 950 is formed at the front end of the slide cylinder 950, and an opening 952 is formed at the center of the front end 951. The opening 952 is formed in a shape through which the operation checking jig 500 can pass. More specifically, the opening 952 has a shape similar to the cross-sectional shape (for example, a rectangle) of the operation check jig 500 and has an area slightly larger than the area of the cross-section of the operation check jig 500. Is formed.

  The operation of this embodiment will be described below.

  In order to set the operation checking jig 500 on the dummy main body member 410, first, as shown in FIGS. 16A and 16B, a pair of the operation checking jig 500 from the other end portion 527 side is provided. The locking portions 441 are inserted between the pair of opposing portions 520, and the pair of adjacent portions 532 are locked to the locking portions 441, respectively. In this state, the operation checking jig 500 can swing around the pair of locking portions 441 as the swing shaft.

  Next, the slide cylinder 950 is moved forward relative to the jig holding portion 440 (that is, the direction in which the dummy slide member 420 is slid by the chemical solution injector 100). As a result, as shown in FIGS. 16C and 16D, the operation checking jig 500 swings and is gradually swallowed into the slide cylinder 950, and finally in the sliding direction of the dummy slide member 420. Positioned along. Accordingly, the operation checking jig 500 is positioned in front of the rod-shaped body 421 so as to be coaxial with the rod-shaped body 421 of the dummy slide member 420. Thus, the setting of the operation checking jig 500 to the dummy main body member 410 is completed.

  Thereafter, the pressing force receiving portion 531 is pressed by the dummy slide member 420 at the time of the operation check, whereby the operation check jig 500 is deformed as in the first embodiment (FIG. 16E). .

  When the operation confirmation jig 500 is removed from the dummy main body member 410 after the operation confirmation is completed, the slide cylinder 950 is retracted and the operation confirmation jig 500 is removed from the locking portion 441.

  According to the eighth embodiment as described above, the same effect as that of the first embodiment can be obtained.

[Ninth Embodiment]
FIG. 17 is a view showing an operation checking device 400 according to the ninth embodiment, in which (a) is a side view, and (b) and (c) are plan views (however, the dummy main body member 410 has a flat cross section). (D) is a perspective view, and (e) is a perspective view. The operation check apparatus 400 according to the present embodiment is different from the operation check apparatus 400 according to the first embodiment in the points described below, and is otherwise the same as the operation check apparatus 400 according to the first embodiment. It is configured. In the present embodiment, the operation checking jig 500 is the same as any one of the first to fifth embodiments.

  Also in the present embodiment, the movement of the adjacent portion 532 is restricted by the dummy main body member 410 is the same as in the eighth embodiment. That is, each of the portions other than the pressing force receiving portion 531 in the connecting portion 530 of the metal plate 510, that is, each of the adjacent portions 532 constitutes a locked portion that is locked to the dummy main body member 410.

The dummy main body member 410 has a holding recess 450 for holding the operation checking jig 500 and a pair of locking portions 941 for locking each of the locked portions (adjacent portions 532). It has been.
By moving the operation checking jig 500 relative to the holding recess 450 in the moving direction of the dummy slide member 420, the operation checking jig 500 can be inserted into and removed from the holding recess 450.
Each of the pair of locking portions 941 protrudes into the holding recess 450 and engages with each of the locked portions (adjacent portions 532) of the operation checking jig 500 (FIG. 17B). The dummy main body member 410 is provided so as to be swingable so that it can be converted into the second state (FIG. 17C) in which the engagement with each of the locked portions is released.

  More specifically, the jig holding portion 440 is formed with a holding recess 450 that opens forward. That is, the holding recess 450 communicates with the outside through the opening 930 formed in the front end surface of the jig holding portion 440. The shape of the opening 930 is formed in a rectangular shape that is substantially equal to the cross-sectional shape of the operation checking jig 500 as shown in FIG.

  In addition, the jig holding portion 440 is provided with a swing member 940 on each of the left portion and the right portion, for example. The swing member 940 has a pair of shaft portions 942 that protrude in the vertical direction and are arranged coaxially with each other. The swing member 940 is pivotally supported with respect to the jig holding portion 440 by a pair of shaft portions 942 and can swing about the shaft portion 942.

  For example, in the swing member 940, a locking portion 941 that protrudes inward is formed at a portion behind the shaft portion 942. As shown in FIGS. 17B and 17E, the swinging member 940 swings in a direction in which the locking portions 941 of the pair of swinging members 940 come closer to each other, whereby the pair of locking portions 941 are moved. The first state is entered. Also, as shown in FIGS. 17C and 17D, the swinging member 940 swings in a direction in which the locking portions 941 move away from each other, whereby the pair of locking portions 941 are in the second state. .

  The dummy main body member 410 is provided with a biasing member such as a spring (not shown), and the swinging member 940 is always biased by the biasing member so that the pair of locking portions 941 are in the first state. Yes.

  On the outer surface of the swing member 940, a portion located in front of the shaft portion 942 serves as a pressing portion that is pushed in by the operator's fingers when the pair of locking portions 941 is in the second state.

  The operation of this embodiment will be described below.

  First, as shown in FIG. 17C, the pair of locking portions 941 is set to the second state. That is, for example, by pressing the pressing portions of the left and right swinging members 940 against the biasing of the biasing member, the pair of locking portions 941 can be brought into the second state. Then, the operation checking jig 500 is inserted into the holding recess 450 from the front. At this time, the operation checking jig 500 is set so that the other end 527 is positioned forward. Note that the entire operation confirmation jig 500 may be accommodated in the holding recess 450, but considering the ease of removal of the operation confirmation jig 500, as shown in FIG. As described above, it is preferable that a part of the operation checking jig 500 is accommodated in the holding recess 450 and the other part of the operation checking jig 500 protrudes from the holding recess 450.

  Next, as shown in FIG. 17B, the pair of locking portions 941 are set to the first state, and each of the locking portions 941 and the corresponding locked portion (adjacent portion 532) are locked. . That is, for example, by releasing the pushing operation on the pressing portions of the left and right swinging members 940, the left and right swinging members 940 swing according to the biasing of the biasing member, and the pair of locking portions 941 are the first. It becomes a state. Thereby, the operation checking jig 500 is set on the dummy main body member 410.

  After that, when the operation check is performed, the pressing force receiving portion 531 is pressed by the dummy slide member 420, so that the operation check jig 500 is deformed as in the first embodiment.

  When the operation check jig 500 is removed from the dummy main body member 410 after the operation check is completed, the pair of locking portions 941 are set to the second state, and the operation check jig 500 is extracted forward from the holding recess 450.

  According to the ninth embodiment as described above, the same effect as that of the first embodiment can be obtained.

[Tenth embodiment]
FIG. 18A is a side view of the operation confirmation jig according to the tenth embodiment, and FIG. 18B is a front view of the operation confirmation jig according to the tenth embodiment. The operation check jig 500 according to the present embodiment is different from the operation check jig 500 according to the first embodiment in the points described below, and is otherwise in the operation check according to the first embodiment. It is configured in the same manner as the jig 500 for use.

  The operation check jig 500 according to the present embodiment has a pair of side plate portions 540 instead of having the rib 521 in the operation check jig 500 according to the first embodiment. The side plate portion 540 is a plate-like portion that connects the edge portions (side edge portions) in the width direction of the facing portion 520, and is formed in a rectangular shape in a side view as shown in FIG. The material of the side plate portion 540 is not particularly limited as long as it has sufficient rigidity. For example, the side plate portion 540 may be the same kind of metal as the metal plate 510.

  The upper side of one side plate portion 540 is joined to one side edge of one (upper) facing portion 520 by welding or the like at the joint portion 540a, and the lower side of the one side plate portion 540 is It joins by welding etc. in the junction part 540a with respect to one side edge part of the other (lower) opposing part 520. FIG. Similarly, the upper side of the other side plate portion 540 is joined to the other side edge portion of the one (upper) facing portion 520 by welding or the like at the joint portion 540a. The lower side is joined to the other side edge portion of the other (lower) facing portion 520 by welding or the like at the joint portion 540a.

  For this reason, the pair of side edge portions 540 can maintain a constant distance between the pair of facing portions 520, and as a result, the magnitude of the drag generated by the operation checking jig 500 can be reduced. It can be made almost constant regardless of the degree.

  In this embodiment as well, the operation checking jig 500 may have the same curvature maintaining mechanism as that in the second or fourth embodiment. Further, the operation checking jig 500 may have a pressing member 820 as in the third embodiment. Further, the shape of the groove 511 may be the shape as in the fifth embodiment.

  According to the present embodiment, the operation checking jig 500 includes the side plate portion 540 that connects the side edge portions of the pair of facing portions 520. Therefore, it is possible to make the magnitude of the drag generated by the operation checking jig 500 substantially constant while keeping the facing distance between the pair of facing portions 520 constant.

In the tenth embodiment, the side edge portions of the pair of facing portions 520 are joined by joining the pair of side plate portions 540, which are plate-like portions separate from the metal plate 510, to the metal plate 510. The example which forms the jig | tool 500 for operation confirmation of the structure which has the side-plate part 540 which connects mutually was demonstrated.
However, the operation checking jig 500 having a structure having the side plate portion 540 that connects the side edge portions of the pair of facing portions 520 can be formed using a metal square pipe instead of a metal plate. That is, the operation checking jig 500 may include a structure obtained by processing a metal square pipe as a metal member. By forming the metal member of the operation checking jig 500 using a metal square pipe, a reduction in manufacturing cost can be expected.
When the operation check jig 500 having the same structure as the operation check jig 500 according to the tenth embodiment is formed using a metal square pipe, unlike the tenth embodiment, A step of joining the facing portion 520 and the side plate portion 540 becomes unnecessary. In addition, as a mold for producing a metal square pipe by extrusion or drawing, a mold having a structure capable of being extruded or drawn while forming a groove 511 on the surface of the square pipe is used. Thus, a separate process for processing the groove 511 can be omitted.

[Eleventh embodiment]
FIG. 18C is a side view of the operation confirmation jig according to the eleventh embodiment, and FIG. 18D is a front view of the operation confirmation jig according to the eleventh embodiment. The operation check jig 500 according to the present embodiment is different from the operation check jig 500 according to the first embodiment in the points described below, and is otherwise in the operation check according to the first embodiment. It is configured in the same manner as the jig 500 for use.

In the operation checking jig 500 according to the first embodiment, the rib 521 formed on the one facing portion 520 and the rib 521 formed on the other facing portion 520 are separated from each other. explained.
On the other hand, in this embodiment, as shown in FIGS. 18C and 18D, the rib 521 formed in one facing portion 520 and the rib 521 formed in the other facing portion 520 are mutually connected. They are abutted and joined to each other at the joint 521a.
That is, one rib 521 of one (upper) facing portion 520 is joined to one rib 521 of the other (lower) facing portion 520 and the other rib of one (upper) facing portion 520 is joined. 521 is joined to the other rib 521 of the other (lower) facing portion 520.
For this reason, the facing distance between the pair of facing portions 520 can be kept constant by the ribs 521 facing each other and joined to each other. As a result, the drag generated by the operation checking jig 500 is reduced. The size can be made almost constant regardless of the degree of breakage progress.

  In this embodiment as well, the operation checking jig 500 may have the same curvature maintaining mechanism as that in the second or fourth embodiment. Further, the operation checking jig 500 may have a pressing member 820 as in the third embodiment. Further, the shape of the groove 511 may be the shape as in the fifth embodiment.

  Here, the formation range of the rib 521 can be, for example, a range that covers the entire side of the pressing force receiving portion 531. By doing in this way, the opposing space | interval of a pair of opposing part 520 can be maintained more stably. In addition, by doing this, when the operation check jig 500 includes the curvature maintaining mechanism, that is, the bearing member 810 in the second embodiment, the bearing member 810 is prevented from falling off to the side. be able to.

  According to this embodiment, among the ribs 521 formed on the pair of facing portions 520, the operation checking jig 500 has the ribs 521 facing each other butted together and joined to each other. Therefore, it is possible to make the magnitude of the drag generated by the operation checking jig 500 substantially constant while keeping the facing distance between the pair of facing portions 520 constant.

  In addition, each component in each said form does not necessarily need to exist independently independently. A plurality of components may be formed as a single member, one component may be formed of a plurality of members, or a certain component may be a part of another component. A part of a certain component and a part of another component may overlap.

  In each of the above embodiments, it is assumed that only the operation confirmation jig 500 is disposable, and the dummy main body member 410 and the dummy slide member 420 are repeatedly used. However, not only the operation checking jig 500 but also the dummy main body member 410 and the dummy slide member 420 may be disposable.

  In each of the above-described embodiments, the example in which the operation check device 400 and the operation check jig 500 are used for checking the operation of the chemical solution injection device 100 that injects the contrast agent has been described. The jig 500 can also be used for confirming the operation of the chemical liquid injector 100 that injects a chemical liquid other than the contrast medium.

DESCRIPTION OF SYMBOLS 100 Chemical solution injection apparatus 101 Injection control unit 102 Communication cable 105 Display apparatus 105a Display screen 110 Injection head 111 Rear part 113 Front part 114 Recess 116 Pusher 116a Holding claw 120 Flange holding groove 200 Chemical liquid syringe 210 Cylinder member 211 Cylinder body 212 Conduit part 213 Cylinder Flange 220 Piston member 221 Piston body 222 Piston flange 300 CT scanner 301 Perspective imaging unit 302 Imaging control unit 400 Operation check device 405 Opening 410 Dummy body member 413 Dummy flange 420 Dummy slide member 421 Rod-like body 422 Dummy flange 425 Receiving part 430 Dummy cylinder 431 Bearing portion 440 Jig holding portion 441 Locking portion 442 Support bracket 450 Holding recess 460 Movement restricting portion 470 Missing-shaped portion 480 sliding gate member 481 main body portion 482 slide hole 483 cutoff shape portion 485 movement restricting portion 486 insertion portion 490 fixing pin 500 operation check jig 510 metal plate (metal member)
511 Groove 515 Cut 520 Opposing portion 521 Rib 521a Joining portion 527 Other end portion 530 Connecting portion 531 Pressing force receiving portion 531a Arc-like portion 531b Parallel facing portion 531c Folding portion 532 Adjacent portion 540 Side plate portion 540a Joining portion 600 Package 650 Bag body 710 Graph Display 711 Limit pressure line display 720 Display 730 Display 810 Bearing member (curvature maintaining mechanism)
820 Holding member 821 Plate-like part 822 Connecting part 823 Holding part 830 Spacer member 910 Insertion groove 920 Movement restricting part 921 Notch-shaped part 930 Opening 940 Swing member 941 Locking part 942 Shaft part 950 Slide cylinder 951 Front end part 952 Opening 1000 Chemical injection system

Claims (20)

An operation confirmation device used for confirming an operation of a chemical liquid injector that slides the piston member of a chemical syringe having a cylinder member and a piston member slidably inserted into the cylinder member and injects a chemical liquid into a living body. ,
A dummy main body member held by the chemical liquid injector as in the cylinder member;
A dummy slide member which is slidably provided with respect to the dummy main body member, and is slid by the chemical liquid injector similarly to the piston member;
An operation confirmation jig that is attached to the dummy main body member and applies a drag force to the chemical liquid injector when the dummy slide member is slid by the chemical liquid injector holding the dummy main body member;
Have
The operation check jig is
A metal member that is broken by a force received from the dummy slide member when the dummy slide member is slid by the chemical liquid injector holding the dummy body member;
The metal member has a drag equivalent to that when the chemical injection device holding the chemical solution syringe slides the piston member to inject the chemical into the living body to the chemical injection device via the dummy slide member. Operation check device for chemical injection device that breaks while giving.   The operation check apparatus for a chemical liquid injector according to claim 1, wherein the metal member is made of a metal plate. A groove is formed in the metal member,
The said metal member is an operation | movement confirmation apparatus of the chemical injection device of Claim 1 or 2 fractured | ruptured along the said groove | channel. The metal member is
A pair of plate-like opposing portions that are opposed to each other and are arranged along the moving direction of the dummy slide member,
A connecting portion connecting one end portions of the pair of opposing portions to each other;
Have
At least a part of the connecting portion constitutes a pressing force receiving portion pressed by the dummy slide member,
When the pressing force receiving part is pushed by the dummy slide member in a direction from the one end part side to the other end part side of the pair of opposing parts, the pair of opposing parts are broken while applying the drag force. The operation check apparatus of the chemical injection device according to claim 2 or 3.   The operation check device for a chemical liquid injector according to claim 4, wherein the pressing force receiving portion is bent in a convex manner toward the other end of the pair of opposed portions.   6. The operation check device for a chemical liquid injector according to claim 5, wherein the pressing force receiving portion has a pair of parallel facing portions facing in parallel with each of the pair of facing portions. The dimension of the portion that presses the pressing force receiving portion in the dummy slide member in the direction perpendicular to the plane of the pair of facing portions is:
The operation check device for a chemical liquid injector according to claim 6, which is equal to an interval between the pair of parallel opposing portions. When the direction perpendicular to the direction of movement of the dummy slide member and the direction perpendicular to the surface perpendicular direction of the facing portion is the width direction,
The operation check device for a chemical injection device according to any one of claims 4 to 7, wherein ribs are formed along both end portions of the facing portion in the width direction.   In each of the pair of opposed portions, the curvature that maintains the curvature of the folded portion located at the boundary between the portion folded after the break and the portion before the break when the pair of opposed portions is broken below a certain value. The operation check device for a chemical liquid injector according to any one of claims 4 to 8, further comprising a maintenance mechanism.   The said curvature maintenance mechanism is an operation | movement confirmation apparatus of the chemical | medical solution injection device of Claim 9 containing the bearing member hold | maintained between the part folded back after the said fracture | rupture and the part before the said fracture in the said folding | returning part. The dummy body member is
A holding recess for detachably holding the operation checking jig;
A movement restricting portion for restricting the operation checking jig from moving relative to the holding recess in a direction in which the dummy slide member is slid by the chemical liquid injector;
The apparatus for confirming operation of the chemical liquid injector according to any one of claims 1 to 10, comprising:   The operation check jig can be attached to and detached from the holding recess by moving the operation check jig relative to the holding recess in a direction intersecting the moving direction of the dummy slide member. The operation check apparatus of the chemical injection device according to claim 11. The operation checking jig can be inserted into and removed from the holding recess by moving the operation checking jig relative to the holding recess in the moving direction of the dummy slide member.
The movement restricting portion is movable relative to the holding recess in a direction orthogonal to the moving direction of the dummy slide member,
By moving the movement restricting portion relative to the holding recess while the operation checking jig is inserted into the holding recess, the movement restricting portion causes the movement checking portion to move the operation checking jig relative to the holding recess. The operation check device for a chemical liquid injector according to claim 11, wherein the movement is regulated. When the direction perpendicular to the direction of movement of the dummy slide member and the direction perpendicular to the surface perpendicular direction of the facing portion is the width direction,
The central part of the connecting part in the width direction constitutes the pressing force receiving part,
The pressing force receiving portion is separated from each of the portions other than the pressing force receiving portion in the connecting portion by a pair of cuts formed in the connecting portion,
Each portion of the connecting portion other than the pressing force receiving portion constitutes a locked portion that is locked to the dummy main body member,
When the locked portion is locked to the dummy main body member, the operation checking jig is moved relative to the dummy main body member in a direction in which the dummy slide member is slid by the chemical liquid injector. The operation check device for a chemical liquid injector according to any one of claims 4 to 10, wherein relative movement is restricted. The dummy body member is
A holding part that slidably holds the dummy slide member;
A slide cylinder that is held by the holding portion and is slidable relative to the holding portion in a sliding direction of the dummy slide member with respect to the dummy main body member;
A locking portion provided at a distal end portion of the holding portion and to which each of the locked portions is locked;
Have
In a state where each of the locked portions is locked to the locking portion, the operation check jig can swing around the locking portion as a swing shaft,
In a state in which each of the locked portions is locked to the locking portion, the dummy slide member is slid by the chemical solution injector relative to the holding portion with respect to the slide cylinder. 15. The operation check of the chemical injection device according to claim 14, wherein the operation check jig swings and is squeezed into the slide cylinder and positioned along the slide direction of the dummy slide member. apparatus. The dummy main body member has a holding recess for holding the operation confirmation jig, and a pair of locking portions to which the locked portions are locked.
The operation checking jig can be inserted into and removed from the holding recess by moving the operation checking jig relative to the holding recess in the moving direction of the dummy slide member.
Each of the pair of locking portions protrudes into the holding recess and engages with each of the locked portions of the operation check jig, and engagement with each of the locked portions. The operation check device of the chemical injection device according to claim 14, wherein the device is swingably provided with respect to the dummy main body member so as to be convertible to the second state in which the is released.   The said operation confirmation jig | tool is a disposable thing which can be attached or detached with respect to the said dummy main body member, The operation confirmation apparatus of the chemical injection device as described in any one of Claims 1 thru | or 16.   An operation check jig for a chemical injection device, which is the operation check jig in the operation check device for a chemical injection device according to any one of claims 1 to 17.   The jig for operation check of the chemical injection device according to claim 18, wherein the surface of the metal member is subjected to rust prevention treatment. An operation confirmation jig for the chemical injection device according to claim 18 or 19,
A bag containing the operation check jig in a sealed state;
A package containing an operation confirmation jig.

Images