JP6327632B2 - Chemical injection device - Google Patents

Description

  The present invention relates to a chemical liquid injector capable of setting an injection protocol intuitively with simple operation.

  Currently, CT (Computed Tomography) scanner, MRI (Magnetic Resonance Imaging) apparatus, PET (Positron Emission Tomography) apparatus, ultrasound diagnostic apparatus, angiography (angiography) imaging apparatus, etc. are known as medical image diagnostic apparatuses. ing. When using such an imaging apparatus, a patient may be injected with a contrast medium, physiological saline, or the like (hereinafter also simply referred to as “medical solution”).

  Particularly regarding angiography, the following can be said. In other words, recent angiography technology using a chemical injection device is not only the development of a percutaneous catheter method, but the development of X-ray equipment, catheters, contrast agents, etc. Has evolved into (IVR). Considering each procedure, it can be divided into local arterial infusion, vascular embolization, vascular dilation and opening using a catheter. Subjects include tumors, bleeding, vascular lesions and the like. For tumors, there are intra-arterial injection of anticancer agents and transcatheter arterial embolization (TAE). For bleeding, there are continuous arterial infusion of vasoconstrictors and arterial embolization, and for vascular lesions, there are thrombolysis and percutaneous transvascular angioplasty (PTA).

  Percutaneous Transluminal Coronary Angioplasty (PTCA), which has been rapidly developed among percutaneous angioplasties currently being actively performed, is a balloon catheter and atherectomy. It can be broadly divided into (coronary atherectomy) and stent implantation. From the background of such angiographic evolution, various blood vessels directly connected to organs and lesions in the head, chest (including the heart), abdomen, and lower limbs are selectively or repeatedly imaged the same blood vessels (complexity). In order to confirm the proper blood vessel running, change the imaging angle to know the anteroposterior relationship of the blood vessels, finely adjust the injection conditions so that the catheter can not be removed, and confirm it after treatment). Is required.

  As described above, angiography is performed by adjusting the concentration of the contrast agent and the injection speed as appropriate according to the blood vessel site and repeatedly injecting the contrast agent. This is one difference from the completed CT and MRI imaging examinations.

  For example, Patent Document 1 discloses an example of a chemical liquid injection device for angiography. This chemical injection device is used in the following angiography methods: That is, in the catheter method, a catheter is introduced percutaneously into a blood vessel (artery) by a guide wire without incising the skin. Then, after the distal end of the catheter is positioned in the vicinity of the start portion of the target blood vessel, the drug solution injection device is operated to inject a contrast medium using a predetermined injection protocol, and continuous imaging is performed using the imaging device. Thereby, the contrasted blood vessel is displayed on a predetermined display, and the doctor performs diagnosis and treatment while viewing the image.

  In addition, as a chemical | medical solution injection | pouring apparatus for angiography, what is equipped with an injection | pouring head and a console is disclosed as it is disclosed by patent document 1, for example. The injection head for angiography has the following characteristics different from the injection head for CT examination and MR examination. In other words, angiography is characterized in that the injection pressure is very high because the drug solution is injected through a thin catheter introduced into the blood vessel. Therefore, many syringes are configured to be attached to the injection head in a state where they are put in a protective case or the like. This is different from an injection head for CT inspection or MR inspection in which a syringe is directly attached or attached via an adapter that holds a part of the syringe.

WO2006 / 068171

  In general, when using an angiographic chemical injection device, a doctor gives instructions to the medical personnel such as a radiographer or nurse on injection conditions (injection speed and injection volume), and the medical worker Alternatively, injection conditions are set by inputting to the console of the injection device in the operation room. In one example, a medical worker may call a predetermined injection condition registered in advance from the memory list to set the injection condition.

  On the other hand, as described above, in recent angiography, it is required to selectively image a large number of blood vessels according to the purpose of treatment, or to image the same blood vessels many times, and to ensure reliable treatment simultaneously with image diagnosis. . In general, it may be routine to inject a contrast medium into a single patient and image various blood vessels or the same blood vessel many times.

  Conventional angiographic drug injection devices are not configured to select a patient's vascular site on the screen. Generally, desired conditions can be selected from a pre-registered injection condition list (memory list). There are many methods to choose. Accordingly, there remains room for improvement from the viewpoint of simple selection of the injection conditions and setting of the injection protocol intuitively.

  The above-described problems are not necessarily unique to the chemical liquid injector for angiography, and may be applied to other types of chemical liquid injectors.

  An object of the present invention is to provide a liquid injection that allows easy setting of an injection protocol with a simple operation in a contrast examination in which a concentration of a contrast medium and an injection speed are appropriately adjusted according to a target site and a liquid injection is repeated a plurality of times. It is to provide a device or the like.

In order to solve the above-mentioned problems, a chemical solution injection device according to one embodiment of the present invention is as follows:
A chemical solution injection device for injecting a chemical solution,
A1: at least one piston drive mechanism;
A2: a computer unit electrically connected to the piston drive mechanism to operate the piston drive mechanism;
A3: at least one display;
With
The computer unit is
a1: Displaying a plurality of selectable body segment icons or a plurality of selectable imaging region icons on the at least one display;
a2: When one of the plurality of body segment icons or imaging region icons is selected, a plurality of selectable target region icons corresponding to the body segment or imaging region are displayed on the at least one display. ,
a3: When one of the target site icons is selected, the contrast liquid injection condition corresponding to the target site is presented on the at least one display.
a4: When the confirmation or correction by the user is performed, the presented or modified injection condition is set as an injection protocol.
The chemical injection device is programmed as follows.

As described above, the “chemical solution injection device” in the present invention includes the following components:
-Piston drive mechanism-Computer unit-Display Here, these components may be provided in any device constituting the chemical solution injector. That is, when the chemical liquid injector includes an injection head, a console, etc .;
(A) The injection head may be provided with a piston drive mechanism, and the console may be provided with a computer unit and a display.
(B) Computer units may be provided on both the injection head and the console,
(C) A display may be provided on both the injection head and the console.

  As described above, the arrangement of the components such as the piston drive mechanism, the computer unit, and the display can be in various forms.

(Explanation of terms)
The “chemical solution injection device” refers to a chemical solution injection device that injects a chemical solution, and the type of imaging device used together with the chemical solution injection device is not limited at all. That is, a liquid injector used together with an angiographic apparatus, a CT apparatus, an MRI apparatus, an ultrasonic apparatus, an angiographic apparatus, or the like as an imaging apparatus can also correspond to the chemical injection apparatus of the present application. The chemical solution injection device may inject the chemical solution through a catheter.
A “catheter” is, for example, a length of about several tens of centimeters (for example, 30 cm or more) in a narrow sense, and is introduced into a blood vessel and used for angiography. It includes a type that is about several centimeters and is punctured into a blood vessel such as an arm.
“Chemical solution” refers to, for example, a contrast agent, physiological saline, or a mixture thereof.
The “infusion protocol” indicates what kind of chemical solution is to be infused, how much, and at what rate. In the present specification, “injection protocol” and “(chemical solution) injection condition” may be synonymous.
In this specification, the “user” refers to a person who uses the chemical liquid injector, and is intended to be a doctor or a medical worker, for example.

“Patient” —As used herein, “patient” may be synonymous with “subject”.
"Data"-As used herein, "data" may be synonymous with "information".
“Connection” —In this specification, when a given device is said to be connected to another device, it may be in either a wired connection or a wireless connection.

“Electrically connected” means that components are connected so that electrical signals can be transmitted in one direction or in both directions, and may be in either a wired connection or a wireless connection. . In addition to the components directly connected to each other, the case where the components are indirectly connected via other elements is also included.

The “icon” is configured to be able to be selected by (i) displaying predetermined information and selecting by the user, and (ii) simply displaying predetermined information. Includes both those that are not. All or some of the icons displayed on the screen can be selected by touching each display location with a touch pen, an operator's finger, or the like, or with a cursor on the screen.

“Set as an injection protocol” means that a chemical solution can be injected with the injection protocol (injection conditions). As an example, after an injection protocol is set on the apparatus side, injection of a chemical solution is started when there is an input from a doctor or medical staff.

For example, in the case of angiography, the “routine according to the examination purpose” refers to a plurality of angiography whose order is predetermined in a certain angiography examination. It may be set by a doctor who uses the chemical solution injection device, or may be set in advance in the chemical solution injection device. In another form, the data of these routines may be updated in a timely manner via the network.

  ADVANTAGE OF THE INVENTION According to this invention, the chemical | medical solution injection | pouring apparatus etc. which can set an injection | pouring protocol intuitively by simple operation can be provided.

It is a figure which shows typically the whole structure of a chemical injection device. It is a schematic diagram which shows an example of the examination room of a medical institution, an investigation room, and a machine room. It is a perspective view which shows a syringe and a protective case. It is a flowchart which shows an example of procedures, such as an injection protocol setting and chemical | medical solution injection | pouring. It is a figure which shows an example of the GUI screen for setting an injection | pouring protocol (setting screen, initial stage). It is a figure which shows an example of the GUI screen for setting an injection | pouring protocol (a setting screen, imaging region selection). It is a figure which shows an example of the GUI screen for setting an injection | pouring protocol (a setting screen and a blood-vessel site | part are selected). It is a figure which shows an example of the GUI screen for setting an injection | pouring protocol (a setting screen and a blood-vessel site | part are selected). It is a figure which shows an example of the screen during chemical | medical solution injection | pouring execution. It is a figure which shows an example of the screen after injection | pouring (implementation condition display). It is a figure which shows an example of the GUI screen for setting an injection | pouring protocol (a setting screen and other blood-vessel site | parts are selected). It is a figure which shows an example of the screen after injection | pouring (implementation condition display). It is a figure which shows an example of the screen after injection | pouring (implementation condition display). It is a figure which shows another example of the screen after injection | pouring (implementation condition display). It is a figure which shows an example of the GUI screen for setting an injection | pouring protocol (an imaging area is selected after a body division selection). It is a figure which shows an example of a structure of a medical examination system. FIG. 6 is a six-sided view illustrating an example of an appearance of a console and an example of a screen displayed on the display unit. It is a figure which shows another example of the screen displayed on a display part.

  Embodiments of the present invention will be described below with reference to the drawings.

  As shown in FIG. 1, the drug solution injection system 500 of this embodiment includes a drug solution injection device 100 for angiography that injects at least a contrast medium as a drug solution into a patient. The chemical injection system 500 may also include an imaging device 300 that captures a fluoroscopic image of the patient.

  The chemical injection device 100 may include an injection head 110 to which the syringe 200 is attached, a console 150 wired or wirelessly connected thereto, and a power supply unit 148 connected to the injection head 110 and the console 150. .

  In such a configuration, for example, as shown in FIG. 2, the imaging device 300 and the injection head 110 are arranged in the examination room, the console 150 is arranged in the operation room, and the power supply unit 148 is arranged in the machine room. Also good. Each chamber may be partitioned by a wall, and a window may be provided between the examination room and the operation room.

  Regarding the arrangement position of the power supply unit 148, in another form, the power supply unit 148 may be arranged in the operation room. Alternatively, the power supply unit 148 may be disposed in the examination room.

  In addition, it is good also as a chemical | medical solution injection | pouring apparatus with which the injection | pouring head 110 and the console 150 were integrated, or the injection | pouring head 110, the console 150, and the power supply unit 148 were comprised integrally. Such a chemical injection device may be arranged in the examination room. Here, “integrated configuration” does not necessarily mean that all the devices are housed in one housing, and the devices are arranged adjacent to each other and moved integrally by a doctor or medical staff. Such a configuration is also included. For example, it may be a chemical solution injector in which a movable stand is mounted that corresponds to the injection head 110 and the console 150 (and the power supply unit 148 as necessary).

  In another form, the battery electrically connected to the injection head may be mounted on the movable holding means and configured to be freely movable. Further, the battery may be provided with wheels or the like so that the battery can be moved. As an example of the battery, a DC battery can be used.

[1. Angiographic syringe
An angiographic syringe 200 is an example, and includes a cylindrical cylinder member 210 and a piston member (plunger) 220 slidably inserted therein. A commercially available syringe 200 may be used as the angiographic syringe 200. The capacity of the syringe 200 may be, for example, about 100 ml to 200 ml.

  The material of the cylinder member 210 may be resin, glass, metal, or the like. The cylinder member 210 may have an open base end, and a cylinder flange 211a may be formed near the base end. The contour shape of the cylinder flange 211a may be any shape, for example, a circle, an ellipse, a polygon, or a part of these shapes (for example, an I cut shape, a D cut) Shape).

  The front end of the cylinder member 210 may be closed, and a long and narrowly protruding conduit portion (nozzle portion) 211b may be formed. A luer lock structure for connecting a chemical liquid tube may be formed at the tip of the conduit portion 211b. The front end portion of the cylinder member 210 may be a flat surface or may have a substantially conical shape protruding toward the front end side.

  The piston member 220 may be a so-called rodless type. A locking protrusion 214 for directly or indirectly connecting the rod or the ram member of the piston drive mechanism may be formed on the back surface of the piston member 220.

  The locking projection 214 may have any shape, but is only an example of a shaft member extending in the axial direction of the syringe and a disk-shaped portion formed at the end of the shaft member. It may have. In another form, it may consist of a pair of L-shaped members arranged on the back surface of the piston member 220 at a predetermined interval. The material of the piston member 220 is not particularly limited, but may be resin, metal, or a combination thereof with rubber.

  In general, the guaranteed pressure resistance of the product is set in the angiographic syringe 200. The guaranteed breakdown voltage may be 1000 psi, for example. The syringe 200 may be distributed as a sterilized disposable product. The syringe 200 may be contained in the packaging bag as a single item or in combination with a predetermined accessory.

  The syringe may be a prefilled type that is pre-filled with a chemical solution, or may be a suction type that sucks and uses a chemical solution in an empty syringe.

[2. (Protective case)
The syringe 200 for angiography may be attached to the injection head 110 in a state of being inserted into a protective case 240 illustrated in FIG. Such a protective case 240 may have a cylindrical hollow body member 241 as an example. The main body member 241 has a configuration in which the front end side is closed and the rear end side is opened. The syringe 200 is inserted from the opening on the rear end side of the protective case 240. An opening 241a for allowing the conduit 211b of the syringe to pass is formed on the closed end surface of the main body member 241. Although not limited, the opening 241a may be formed so as to be positioned at the center of the distal end surface.

  A flange portion 241 b may be formed at the base end portion of the protective case 240. An indicator for discriminating the upper and lower sides of the protective case may be formed on the flange portion 241b. The indicator may be a protrusion, for example. For example, a mark such as “UPSIDE” may be formed on the protrusion. The flange portion 241b is preferably designed in a shape and / or strength suitable for being held by a holding structure (for example, a clamper mechanism) on the injection head side. The material of the protective case 240 is not particularly limited, but may be resin, glass, metal, or the like.

[3. Identification member
The protective case and / or syringe may be provided with one or a plurality of identification members (identification means) for identifying the type of the protective case and / or syringe. The identification means may be a predetermined data carrier member. As the data carrier member, an IC tag, a barcode, a magnetic material, or the like may be used.

The information to be identified or stored may be at least one or a combination of:
(1) Information on the syringe-Identification information of the syringe-Pressure resistance of the syringe-Inner diameter of the cylinder member-Stroke of the piston member, etc. (2) Information on the chemical solution filled in the syringe-Name (for example, product name)
-Component information such as the amount of iodine-Expiration date-Chemical solution volume, etc. (3) Information about the protective case-Identification information of the protective case-Pressure resistance of the protective case, etc. (4) Unique unique ID

[4. (Extension tube)
An extension tube is connected to the distal end of the conduit portion of the syringe. If two syringes are used, the extension tube may be a so-called T-tube or Y-tube. As such an extension tube, as an example, a first tube portion extending from the conduit portion of one syringe to the branch portion of the extension tube, a second tube portion extending from the conduit portion of the other syringe to the branch portion, And a main tube portion extending from the branch portion toward the patient.

  Various catheters are exchangeably connected to the distal end side of the extension tube.

  With the catheter introduced into the patient, the injection head is operated to push out the drug solution in one or more syringes, whereby the drug solution is injected into the blood vessel through the catheter.

  In a scene where chemical liquid is sucked into the syringe, a suction tube for sucking the chemical liquid into the syringe may be attached to the distal end of the syringe conduit section. As the suction tube, for example, the tip side is curved and has a J shape as a whole. You may use with what was formed in.

[5. Injection head)
For example, the injection head 110 may have a casing having a length in the front-rear direction, and one or a plurality of syringes may be attached to the front end side of the casing. The injection head 110 may be of a single type that holds a single syringe or may be of a dual (two-cylinder) type that holds two syringes. It is also possible to use an injection head for contrast.

  The injection head 110 may have one or more piston drive mechanisms 130 and a computer unit 144 electrically connected to the piston drive mechanisms 130.

(Piston drive mechanism)
The piston drive mechanism includes a motor as a drive source, a motion conversion mechanism that converts the rotational output of the motor into linear motion, and a ram member (pressor member) that is moved by the motion conversion mechanism to move the piston member of the syringe forward or backward. It may have. As such a piston drive mechanism, a known mechanism generally used in a chemical liquid injector can be used.

  Two systems of piston drive mechanisms may be provided. In this case, one may be for a contrast medium syringe and the other may be for a physiological saline syringe. Each piston drive mechanism is configured to be able to operate independently, and these can be operated simultaneously or separately in accordance with a control signal from the computer unit.

Typical piston drive mechanisms include the following:
-Chemical injection (advance of ram member)
-Chemical suction (retraction of the ram member)
In “chemical solution injection”, a chemical solution is injected in accordance with a set injection protocol by operating the motor in accordance with a predetermined motor control signal to advance the ram member.
In “chemical solution suction”, a chemical solution is sucked into a syringe by operating a motor in accordance with a predetermined control signal to retract a piston member.

  In the case of a prefilled syringe, the chemical liquid suction need not be performed.

(Computer unit)
The computer unit 144 may include a CPU (Central Processing Unit) that performs arithmetic processing, a memory, an interface, and the like, and may implement various functions by executing computer programs stored in the memory.

  The computer unit 144 may be a one-chip microcomputer that has hardware such as a CPU, ROM, RAM, and I / F and is equipped with a program.

The computer unit 144 is electrically connected to various elements of an injection head described later. The computer unit 144 may be configured (programmed) to perform the following processing as an example:
-Performs predetermined arithmetic processing based on signals from various sensors (details below)-Sends predetermined motor control signals to the piston drive mechanism to control operation-Predetermined information on a display or the like (details below) Display-Accept input from user through input device (details below) such as physical buttons-Control the operation of heaters (details below), etc.

(Various sensors)
The injection head 110 may have one or more of the following as various sensors 145:
-One or more pressure sensors-One or more syringe detection sensors (magnet sensors, hall sensors, etc.)
-One or more tilt sensors-one or more rotary encoders-one or more motor current detectors, etc.

(A1) Pressure sensor A pressure sensor is for calculating the pressure which pushes a piston member, and can obtain | require the pressure estimated value of a chemical | medical solution by this. The pressure sensor may be a load cell, for example. The load cell should just be provided in the position which can detect the pressure which the ram member of a piston drive mechanism pushes a piston member.

  For example, when using the load cell detection result to calculate the estimated value of the chemical pressure when the chemical solution is being injected, the calculation is performed in consideration of the needle size, chemical concentration, injection conditions, etc. May be.

(A2) Syringe detection sensor The syringe detection sensor is used to detect whether or not a syringe and / or protective case is attached, or to determine what type of syringe and / or protective case is attached. It is what Such a sensor may be either a contact type or a non-contact type. For example, the following can be used:
-Contact sensors using physical contact-Electrical sensors that detect objects electrically-Magnetic sensors-Hall sensors-Optical sensors-Proximity sensors, etc.

(A3) Tilt sensor The tilt sensor detects the tilt of the injection head. In general, this type of injection head performs the suction of the chemical solution into the syringe in such a posture that the front end side (that is, the syringe side) is upward. On the other hand, the chemical liquid injection is performed in such a posture that the front end side of the injection head is relatively downward (a posture in which the tip side is directed slightly downward). By using the detection result of the tilt sensor, it is possible to prevent, for example, chemical liquid suction or chemical liquid injection in an undesirable posture.

(A4) Rotary encoder A rotary encoder or the like for detecting the rotational speed and / or rotational direction of the motor of the piston drive mechanism may be provided.

(A5) Motor current detector It is also possible to calculate the estimated pressure value of the chemical based on the motor current without using a load cell or the like. In this system, the motor current is monitored by the motor current detector during operation of the motor, and the estimated pressure value of the chemical solution is obtained based on the motor current.

(Other components of the injection head)
The injection head may further have one or more of the following:
-One or more syringe heaters (147a)
-One or more displays (147b)
-One or more head status indicators-One or more manually operated knobs (manual knobs)
-One or more physical buttons (input device, 147c)
-One or more clamp mechanisms-One or more syringe receivers (protective cover receiver)
-One or more RFID communication devices-one or more data receivers-one or more data transmitters, etc.

(B1) Heater The heater is for keeping the chemical solution in the syringe at a predetermined temperature. Any type of heater and heat generation method may be used, but as an example, a sheet-like heater may be used. The sheet-like heater may be provided in the syringe receiving part (protective case receiving part) of the injection head so as to be close to the outer peripheral surface of the protective case.

(B2-1) Display A display for displaying predetermined information may be provided in the injection head. The display may be provided, for example, in a part of the casing of the injection head. Alternatively, a sub display prepared separately from the housing may be used.

  The display may be a display unit using an LCD (Liquid Crystal Display), an organic EL (Organic Electro-Luminescence) display, or the like, but may be a display unit using an LED (Light Emitting Diode).

The contents displayed on the display are not particularly limited, but may be as follows:
-Predetermined status display during infusion operation-Conditions for injecting medicinal solution-Conditions for injecting medicinal solution-Injected amount of medicinal solution-Chemical pressure, etc.

(B2-2) Head Status Display Unit For example, a predetermined light emitting unit for notifying the user of a predetermined state of the injection head may be provided in a part of the casing of the injection head. As an example of the light source, an LED (Light Emitting Diode) can be used. Such a light emitting unit has a function as a head status display unit, and can notify the user of various statuses of the injection head by changing a light emission color or a light emission pattern.

(B3) Physical button The physical button is not particularly limited, but may be as follows:
-Advance button for advancing the ram member-Retreat button for advancing the ram member-Accelerator button for increasing the moving speed of the ram member by pressing simultaneously with the advance button or the retreat button-Stop button for stopping the operation of the head ,etc

  These physical buttons can be appropriately arranged on the upper surface, side surface, lower surface, rear end surface and the like of the injection head housing. In the case of a two-cylinder injection head, the physical button arrangement for one piston drive mechanism and the physical button arrangement for the other piston drive mechanism may be asymmetric.

(B4) Clamp mechanism The clamp mechanism is a mechanism that holds the flange portion of the protective case. For example, the flange portion may be held by sandwiching the flange portion from both sides with a pair of holding members. For example, such holding members may each be formed in a substantially arc shape and rotate around a predetermined axis to open and close. In another form, it may have a single member that is pivotally supported around one end and is opened and closed around the shaft, and the flange portion is locked by the member.

(B5) Manual knob The manual knob is for manually moving the ram member forward or backward by operating (for example, rotating) the manual knob. When two piston drive mechanisms are provided, one manual knob may be provided for each piston drive mechanism. The manual knob is an example, and can be arranged at the rear end portion, the side portion, the upper portion, the lower portion, or the like of the injection head.

(B6) RFID communication device When data holding means such as an IC tag is attached to the syringe or the protective cover, a wireless communication device that reads information on the tag may be provided. This wireless communication device may be an RFID reader that simply reads data from an IC tag, or may be an RFID reader / writer that can also write data to an IC tag.

(B7) Data receiver The data receiver is for receiving data transmitted from the outside to the injection head by wire or wireless. For example, the data receiver may receive the following data from the outside:
-Arbitrary data generated by the imaging device-Arbitrary data generated by the hospital system, etc.

(B8) Data transmitter The data transmitter is for sending predetermined data from the injection head to the outside by wire or wireless.

  As a communication protocol for the data receiver and the data transmitter, a suitable protocol may be adopted in consideration of a communication system with another device which is a communication partner.

The data that can be transmitted from the injection head to the outside by the data transmitter may be one or more of the following:
-Name of contrast medium used, etc. (contrast medium identification information)
-Total amount of contrast medium injection-Contrast medium injection time-Contrast medium injection speed, etc.

And one or more of the following:
-Patient identification information (eg patient ID)
-Inspection identification information (for example, inspection ID)
-Information on imaging time, etc. Such information may be transmitted in combination with the information on the contrast agent described above.

[6. console〕
As shown in FIG. 1, the console 150 has a display 151, a computer unit 153, various input means 157a to 157c, and the like. Although the physical form of the console 150 is not specifically limited, For example, you may have a 1 or several housing | casing.

  For example, the computer unit 153 may be disposed in one housing, and the display 151 may be disposed on the front surface of the housing.

However, the form of the housing is not limited at all. It is good also as a preferable housing | casing shape suitably according to the scene where the console 150 is used. For example, it may be:
-A stationary housing shape suitable for being used on the table in the operation room;
-A casing shape that can be suitably attached to a predetermined support member or a wall (for example, a thin casing having a substantially flat back side), and the like.

  It is good.

  The display of the console may be a display unit using an LCD (Liquid Crystal Display), an organic EL (Organic Electro-Luminescence) display, or the like. A touch panel display may also be used.

  A plurality of displays may be provided on the console.

(Computer unit)
The computer unit 153 includes a CPU (Central Processing Unit) that performs arithmetic processing, a memory, an interface, and the like, and implements various functions by executing computer programs stored in the memory. The computer unit 153 may be a one-chip microcomputer that has hardware such as a CPU, ROM, RAM, and I / F and is equipped with a program.

The computer unit 153 has a large number of functions according to the installed program, and examples of the console functions include the following:
-Injection protocol setting GUI display function-Injection protocol setting function-Screen display function during injection-Screen display function after injection-Input detection function-Injection control function, etc.

  The computer program may be stored in advance in a predetermined storage area of the console, downloaded from the outside through a network or the like and stored in the predetermined storage area, or It may be read from an information storage medium inserted into the slot.

  Each of the above functions is configured in a computer unit by a computer program, an injection protocol setting GUI display unit, an injection protocol setting unit, a screen display unit during injection, a screen display unit after injection, an input detection unit, and injection control It may be realized by the unit.

  The injection protocol setting GUI display function displays a GUI screen for setting the injection protocol on the display. Specifically, a body segment icon, an imaging region icon, a blood vessel site icon, and the like are displayed. When the blood vessel site icon is selected, a predetermined liquid injection condition is presented on the display.

  The injection protocol setting function sets the content as an injection protocol after the medical solution injection conditions presented as described above are confirmed / corrected by a doctor or a medical staff.

  The screen display function during the injection displays a still image or an animation image on the display during the injection of the chemical solution. Further, during the injection of the chemical liquid, the pressure information of the chemical liquid is displayed on the display.

  The post-injection screen display function displays information related to the implemented chemical solution injection on the display.

  The input detection function accepts an input from a doctor or medical staff performed through a touch panel, a physical button, or the like (an example).

  The injection control function operates the piston drive mechanism in accordance with the set injection protocol to inject the chemical solution. Only one of the piston drive mechanisms may be operated, and both may be operated simultaneously.

The computer unit 153 may further have the following functions:
-Injection history generation function-Injection history output function

The injection history generation function is a function for generating injection history data. The “injection history data” may be, for example, one or more of the following:
-Injection work ID that is unique identification information for each injection work
-Date and time of injection start and end-Identification information of the chemical solution injection device-Identification information of the chemical solution and imaging part that are the injection conditions described above

  The format of the data may be a text data format. Alternatively, the format of the data may be DICOM (Digital Imaging and Communications in Medicine) standard method and / or HL7 standard (Health Level 7 standard) which is a standard for medical information exchange.

  The injection history output function may correspond to a function of transmitting injection history data to the outside. Specifically, data may be transmitted to a predetermined external device and / or network. Not only the injection history data, but also, for example, chemicals obtained from an IC tag of a syringe or a protective case, syringe, or protective case data may be transmitted to the outside.

(Input means)
The console 150 may include, for example, a hand switch 157a, an operation button 157b, a slot 157c, and the like as input means.

  The hand switch 157a is connected to the console by wire or wirelessly and operated by the user, and may have a push button type switch or the like.

  The operation button 157b may be, for example, one or a plurality of physical buttons provided on the housing of the console 150. For example, these physical buttons may be provided on the front surface of the housing.

  The slot 157c is a portion into which a predetermined information storage medium is inserted, and the console can read predetermined data from this information storage medium.

  Although not limited thereto, a foot switch 157d (see FIG. 2) is connected to the power supply unit 148, and the operation of the injection head 110 and / or the console 150 is controlled by operating the foot switch 157d. It may be configured.

  Note that the foot switch 157d may be connected to the console 150 in another form. Alternatively, the foot switch 157d may be connected to the injection head 110.

(Other components of the console)
The console 150 may include a speaker or the like (not shown) for outputting sound and / or sound.
The console 150 may have a microphone or the like (not shown) for inputting voice.

[7. Imaging device]
As the imaging apparatus 300, for example, a conventionally known angiographic apparatus or the like can be used. The imaging apparatus 300 includes an imaging unit 304 including a C-arm that performs imaging of a predetermined blood vessel site of a patient lying on a bed, a computer unit 303 that controls the imaging unit 304, and one or a plurality of interpretation monitors 305. There may be.

  The C arm may be provided with an X-ray tube at one end and, for example, an FRD (Flat Panel Detector) at the opposite end. It may be an angiographic device having one or more C-arms. As the image interpretation monitor 305, for example, four or six monitors may be arranged side by side. The image interpretation monitor 305 is an example and may be arranged in the examination room.

  The imaging device and the chemical solution injector may be connected to each other by wire or wireless, and may be configured to perform data communication using a predetermined communication protocol. It is also preferable that the imaging device and the chemical solution injector be configured to be interlocked. That is, even if the predetermined operation of the chemical injection device is used as a trigger, the predetermined operation of the imaging device may be performed simultaneously with the operation or at a predetermined time interval with respect to the operation. Good. On the contrary, the predetermined operation of the chemical injection device is configured to be performed at the same time as the trigger of the predetermined operation of the imaging device or at a predetermined time interval with respect to the operation. Also good.

  In the case of angiography, since the contrast medium is injected with the catheter tip reaching the vicinity of the target blood vessel site, as soon as the chemical solution injection device is operated and the piston member is advanced, it enters the target blood vessel. Contrast agent will be sent. Therefore, in general, the imaging device and the chemical solution injection device are interlocked so that imaging can be performed at an appropriate timing.

  As an example of a communication protocol for realizing the above-described linkage, a CANopen protocol based on CAN (controller area network) may be used.

The following changes may be made to the configuration of the injection head, console, etc .:
(C1) The injection head and the console may be connected by a cable, but may be connected via a wireless communication unit or the like. In this case, the communication unit may be externally attached to the injection head or may be built in. Similarly, the communication unit may be externally attached to the console or may be built in.
(C2) The chemical solution injection device is not limited to an angiographic device having a C-arm, and may be another imaging device such as an X-ray CT imaging device.
(C3) A battery unit that supplies power to at least the injection head is provided, and the battery unit may be installed at any location in the examination room or may be held in a part of the movable stand.
(C4-1) A chemical liquid injector capable of controlling a predetermined operation of the chemical liquid injector from the outside of the examination room using a wired or wireless remote controller. In this case, the wireless system may be a system using infrared rays, or a wireless LAN, Wi-Fi (registered trademark), Bluetooth (registered trademark), ZigBee (registered trademark), or the like. Good.
(C4-2) The controlled operation may be any operation including, for example, power on / off of the apparatus. As another example, the start and / or stop of any operation of the injection head may be controlled with a remote controller.
(C5-1) A chemical injection device in which a control unit (for example, one having a single button or a plurality of buttons and / or a display) having a miniaturized console is arranged in the vicinity of the injection head .
(C5-2) Such a control unit is an example and may be held on a movable stand together with the injection head. Or, for example, such a control unit may be held on a ceiling-suspended arm together with an injection head.

[8. Injection protocol setting)
Next, an example of setting of an injection protocol in the chemical solution injection device 100 of the present embodiment will be described with reference to the drawings.

(Step S1)
First, for example, when the operator performs a predetermined input operation on the console 150, a screen as shown in FIG. 5 is displayed on the display 151 (step S1).

The “predetermined input operation” may be, for example, pressing a physical button or the like on the console to start using the console 150.

  As shown in FIG. 5, this GUI screen may include, for example, a horizontally long display area 721 that is a space for displaying predetermined information, icons, and the like at the top of the screen. Such a display area 721 may be displayed not on the upper part of the screen but on the side part, the lower part, or the like. Further, the display is not limited to the horizontally long shape, and may be a rectangular shape, a vertically long shape, a polygonal shape, or the like.

  As shown in FIG. 5, the GUI screen may include a remaining amount display unit 725 that indicates the remaining amount of the chemical solution in the attached syringe. The remaining amount display portion 725 is displayed on any of the upper left portion of the screen, the upper middle portion of the screen, the upper right portion of the screen, the middle left portion of the screen, the middle portion of the screen, the middle right portion of the screen, the lower left portion of the screen, the middle portion of the lower portion of the screen, and the lower right portion of the screen. In this example, it is displayed on the upper right side of the screen.

  As shown in FIG. 5, the GUI screen may include a human body image 701 in which a plurality of body segment icons 701a to 701d are displayed in a humanoid shape as a whole.

  In this example, the front view shape of the human body is an image displayed in the horizontal direction (horizontal direction), but in another form, the image may be displayed in the vertical direction (vertical direction). Moreover, you may make it display not the front view shape but the side view shape of a human body in a horizontal direction or a vertical direction. Such a human body image may have any size with respect to the size of the screen. For example, in the case of the example in FIG. 5, the entire length (corresponding to the height) with respect to the screen size (width). (Length) may be 50% or more.

  Such a horizontal human body image 701 may be displayed near the center of the screen, at a position above the center, or at a position below the center, but in this example, it is above the center. It is displayed at the position. When the human body image is a vertical type, the human body image may be displayed in any of the vicinity of the center of the screen, the position on the left side of the center part, or the position on the lower side of the center part.

  The plurality of body division icons 701 may include a head 701a, a chest 701b, an abdomen 701c, and a lower limb 701d. Only some of these may be displayed. Moreover, it is good also considering the arbitrary multiple of these as one display.

(Step S2)
Hereinafter, a case of a chest technique will be described as an example.

  When the chest body division icon 701b is selected on the GUI screen of FIG. 5, as shown in FIG. 6, for example, the division is highlighted (inverted display state), and a mark indicating the heart is displayed. Is done.

In addition, a plurality of blood vessel site icons 703a to 703c corresponding to the selected chest (heart) 701b are displayed. The blood vessel part icons 703a to 703c may be the following examination parts:
-LVG: Left Ventricle
-LCA: Left coronary artery (LCA)
-RCA: Right coronary artery (RCA)

  The contents of the icons 703a to 703c are not necessarily limited to the blood vessel site. In other forms, it may be a contrast region or an imaging technique name including an organ name or the like.

  The plurality of blood vessel site icons 703a to 703c may be displayed on the upper side, the lower side, the right side, or the left side of the human body image 701. In this example, the blood vessel site icons 703a to 703c are displayed on the lower side.

  Thus, when the icons 703a to 703c are displayed on the lower side of the human body image 701, the user can operate the operation of selecting the body segment and the subsequent selection of the blood vessel site as a series of flows, in other words, There is an advantage that the operation can be easily performed on the GUI. Furthermore, as will be described later, in this embodiment, the parameters of the injection conditions may be displayed below the icons 703a to 703c. In this case, there is an advantage that operations such as selection of a body segment, selection of a blood vessel region, and subsequent parameter correction can be easily performed as a series of flows.

  The plurality of examination region icons 703a to 703c may be displayed side by side in either the vertical direction or the horizontal direction, but in this example, they are displayed side by side in the horizontal direction.

  More specifically, it is also preferable that the display order of the blood vessel site icons 703a to 703c is displayed so as to correspond to a general routine of angiography (detailed later). Here, the icons are arranged in the order of LVG, LCA, and RCA. This means that a general routine in this angiography is in the order of LVG, LCA, and RCA.

  Of course, the doctor can perform the examination without being restricted in the order, and may perform angiography other than these.

  In the case of the chest, when the body classification icon 701b, which is the above item, is selected, the blood vessel site icons 703a to 703c, which are subordinate items, are displayed. For example, when the body classification icon 701c of the abdomen is selected, An imaging region icon which is a middle item (details will be described later with reference to FIG. 15) are displayed, and thereafter, a blood vessel part which is a lower item is displayed in order.

(Step S3)
When, for example, the LVG icon 703a is selected on the screen of FIG. 6, an injection condition 715 preset for LVG (left ventricular contrast) is displayed on the screen, as shown in FIG. When the LVG icon 703a is selected, the icon 703a may be highlighted (inverted display state). Further, the selected icon 703a may be displayed in a size slightly larger than the other icons 703b and 703c.

Injection conditions include, but are not limited to, some or all of the following:
-Injection speed-Injection volume-Delay-Pressure limit-Rise time

The “injection rate” is an injection rate of a chemical solution, and its unit is, for example, [ml / sec].
“Amount” is the amount of drug solution to be injected, and its unit is, for example, [ml].
The “delay” is a time difference between the injection start time of the chemical solution and the imaging start time by the imaging apparatus, and its unit is [sec] as an example. There are cases where imaging is started after a lapse of a predetermined time from the start of chemical liquid injection and cases where imaging is started from a predetermined time before the start of chemical liquid injection.
The “pressure limit” is an upper limit value of the pressure of the drug solution to be injected, and is determined based on the type of catheter used. The unit is, for example, [psi], [kg / cm ² ], [MPa] or the like.

  In this example, the above parameters may be displayed as icons. Some or all of these icons may preferably be adapted so that the user can select them and modify the values.

  For example, when an icon is pressed, a numeric keypad image, an image button for increasing / decreasing a value, or a combination thereof may be displayed, and a doctor or a healthcare worker may change the value by operating such an image. .

  The numerical value may be corrected by the voice input function. The voice input function can be realized using, for example, a microphone provided in the injection head or console and a voice recognition function provided as one of the functions of the computer unit of the injection head or console.

  When using speech recognition in this way, the following advantages are obtained. That is, in angiography, a doctor operates a catheter, but according to voice recognition, there is no need to touch a physical button, a touch panel, or the like for input operation, which is hygienic.

  In another form, a gesture recognition function for recognizing a human movement (such as a gesture) in a non-contact manner may be used. The gesture recognition function may be realized by an image recognition unit such as a camera and a gesture analysis function provided as one of the functions of the injection head or the computer unit of the console.

  Referring to FIG. 7 again, a standby icon 721a is displayed in the display area 721 on this screen. Although not limited, the standby icon 721a may be displayed at a timing when the predetermined blood vessel site icons 703a to 703c are selected, for example.

(Steps S4 to S6)
In the screen of FIG. 7, for example, after the doctor or medical worker confirms the injection conditions (step S4) or after the doctor or medical staff changes the injection conditions as necessary (step S5), the standby icon By pressing 721a, an injection protocol is set, and a state in which chemical injection can be performed with the injection protocol is established. When the standby icon 721a is pressed, the display in the icon may be switched to “Start OK” as shown in FIG.

  Although not limited thereto, the injection may be started by pressing the standby icon 721a once again.

(Step S7)
After the display on the screen is switched to “Start OK” as described above, a medical solution injection according to the set injection protocol is performed by a doctor or a medical worker performing a predetermined input. Examples of the “predetermined input” include the following:
-Operation of the hand switch-Predetermined operation on the linked angiographic imaging device

  Although not displayed on the screen of FIG. 8, a “return” icon (not shown) for returning from the screen of FIG. 8 to the screen of FIG. 7 is displayed on the screen in order to recorrect the injection conditions. It may be.

  During the injection of the chemical solution, for example, an image indicating that the injection is being performed as shown in FIG. 9 may be displayed. In this example, a human body image icon 721b that can confirm the currently selected body segment is displayed in the display area 721 at the top of the screen. Regarding the human body image icon, the selected part may be highlighted (inverted display state) so that the selected part can be easily seen. Information on the current blood vessel site (“LVG”) is also displayed. For example, the information of “LVG” may be displayed in the display area 721 as character information.

  In another form, this “LVG” information may be displayed at an arbitrary position outside the display area 721 on the screen. Not only character information but also images such as symbols may be displayed.

  In the display area 721, characters “injection” indicating that the injection is chemical injection may be displayed.

  In the screen of FIG. 9, the syringe image 716a and a plurality of droplets drawn so as to be ejected from the syringe tip so that the doctor or medical staff can visually confirm that the medical solution is being injected. An image 717a may be displayed. The droplet image 717a may be configured to be displayed as an animation during the injection of a chemical solution. As an example of the animation display, the color of each droplet is changed stepwise over time, It may be such that it can be visually understood that it is pushed forward.

  On the screen of FIG. 9, information (speed, amount, delay time) of chemical solution injection conditions, information (elapsed time, remaining amount of chemical solution), etc. during the chemical solution injection may be displayed.

  In the screen of FIG. 9, a pressure display window 713 for displaying the pressure during the chemical injection may be displayed. In the pressure display window 713, a pressure display portion 713a including a plurality of segments is displayed, and the color of the segments changes according to the pressure. Information such as 600 [psi], 800 [psi], and 1200 [psi] may be displayed on the upper portion of the pressure display portion 713a. In addition, a pressure limit display 713b may be displayed so that it is easy to visually confirm how much the pressure limit is. The pressure limit display 713b may be a graphic display such as a triangular shape or an arrow shape. Good.

When it is necessary to interrupt the chemical injection or injection, for example,
-Release the hand switch operation (for example, pressing)-Cancel the foot switch operation (for example, pressing)-Press any button on the injection head-Press the console stop button (example) May come to a stop.

  In addition, as an example of the hand switch, a case in which a start button for starting an injection operation and a stop button for stopping the injection operation are separately provided in a housing held by a user. . Alternatively, it may be operated by switching on / off of one button, or may generate an input signal only while one button is pressed.

(Step S8)
When the chemical solution injection is completed, as shown in FIG. 10, data of the performed injection condition is displayed in the result display bar 717 a in the setting screen. In this example, in the result display bar 717a, for example, injection rate and injection amount data are displayed. Both the injection rate and the injection amount are preferably displayed, but only one of them may be displayed.

  The result display bar 717a may be displayed on the upper side, the lower side, the right side, or the left side of the blood vessel part icon, but in this example, the result display bar 717a is displayed on the lower side. The display position of the injection speed and the injection amount may be any position in the result display bar 717a. However, as in this example, it is also preferable to display the position corresponding to the performed examination (here, “LVG”), that is, not under the icons 703b and 703c but under the icon 703a. This is because the user can easily grasp which test site is the condition for the chemical injection performed.

  In the screen of FIG. 10, for example, the total amount 719 of the injected chemical is displayed. Although the total amount 719 can be displayed at an arbitrary position on the screen, in this example, it is a position adjacent to the result display bar 717a (in the example, the side of the display bar 717a).

  In the screen of FIG. 10, by way of example, the remaining amount of the medical solution in the syringe that is obtained by subtracting the amount consumed by the current injection of the chemical solution is displayed on the remaining amount display unit 725. In this example, the remaining amount is changed from 150 ml to 130 ml.

(Step S9)
Subsequently, in step S9, the doctor or medical worker determines whether further angiography is necessary. If no further angiography is required after the entire process of the examination is complete, the examination ends. On the other hand, when the next angiography is performed, the process returns to step S1, and angiography is performed on the other blood vessel sites by the same steps as described above.

  FIG. 11 shows a case where LCA: left coronary angiography is performed as the next step. When the doctor or medical worker selects the LCA icon 703b, the selected icon 703b is highlighted (inverted display state) as described above, and the injection conditions 715 corresponding thereto are displayed on the screen. Is done. Thereafter, by the same steps as described above, the setting of the injection protocol for LCA and the injection of the chemical solution according to the injection protocol can be performed.

  When the angiographic examination about LCA is completed, as shown in FIG. 12, the injection condition data performed this time may be displayed in the result display bar 717b. In this example, in the result display bar 717b, as an example, the data of the injection speed and the injection amount are displayed as described above. The result display bar 717b may be displayed at any position, but in this example, the result display bar 717b is displayed adjacent to the previous result display bar 717a. Specifically, the result display bar 717b may be displayed on any of the upper side, the lower side, the right side, and the left side of the result display bar 717a. In this example, the result display bar 717b is displayed so as to be aligned with the upper side of the previous result display bar. Has been.

  Regarding the result display bar 717b, the display position of the injection speed and the injection amount is displayed at the position corresponding to the performed examination (here, “LCA”), that is, below the icon 703b, not below the icons 703a and 703c. It is like that.

  As for the total amount of the injected chemical solution, the total amount of the chemical solution injected by the first and second angiography is displayed on the integrated amount display section 719. The total amount 719 can be displayed at an arbitrary position on the screen. In this example, the total amount 719 is adjacent to the current result display bar 717b (in the example, the side of the display bar 717b).

  Thereafter, the same angiography (RCA: right coronary artery) is performed as in the series of steps described above. Also in this case, the result display bar 717c may be displayed on the screen as described above. Regarding the result display bar 717c, the display position of the injection speed and the injection amount is displayed at the position corresponding to the performed examination (here, “RCA”), that is, below the icon 703c, not below the icons 703a and 703b. It may be like this.

  FIG. 13 shows an example of selecting the LCA again and injecting the chemical solution in the fourth contrast. Thus, as a display form of the injection result when the same angiography (here, “LCA”) is repeatedly performed, the display of the initially displayed blood vessel site icons 703a to 703c is changed as shown in FIG. Instead, the injection speed and the injection amount in the fourth result display bar 717d may be displayed below the icon 703b.

  As another form, as shown in FIG. 14, an LCA icon 703d may be additionally displayed, and an injection speed and an injection amount may be displayed below the icon 703d. In the case of the display as shown in FIG. 14, the number of displayed icons 703a to 703d may be increased, but the numerical data in the result display bar 717 is displayed in a staircase pattern.

(Abdominal angiography)
Subsequently, abdominal angiography will be described. For the abdomen, head, lower limbs, etc., it is basically possible to set the injection protocol and perform the chemical injection in the same manner as the chest described above. However, in this embodiment, for the abdomen, imaging region icons 702a to 702c, which are intermediate items such as “abdominal artery”, “kidney”, and “liver”, are first displayed, and one of them is selected. The blood vessel site icons 703a to 703c corresponding to the imaging region are displayed.

  The imaging region icon is not particularly limited, and may be, for example, the celiac artery (702a), the kidney (702b), the liver (702c), or the like.

  Each of the icons 702a to 702c may be displayed in a graphic form that schematically represents each organ or blood vessel, so that a doctor or a medical worker can easily select visually.

  The three icons 702a to 702c may be displayed so as to overlap the selected body segment icon (here, the abdomen, icon 701c). Three icons 702a to 702c may be displayed so as to fit within the selected body segment icon, but as shown in FIG. 15, within a slightly larger area (refer to the alternate long and short dash line) than the selected body segment icon. It may be displayed.

  Regarding the display of the region indicated by the one-dot chain line, the region may be displayed in an opaque color, for example, or may be a semi-transparent color (therefore, the body segment icon is partially visible). Furthermore, the edge portion of the region may be displayed in a gradation (lighter as it is closer to the edge). In the example of the figure, the alternate long and short dash line is displayed in a rectangle, but a display mode in which the corner is rounded may be used.

  The color is not limited at all and can be set freely. For example, the alternate long and short dash line portion may be blue, and the unselected icon may be white.

  If any one of the icons 702a to 702c is selected, the selected icon is highlighted so that it can be seen at a glance that the icon is selected. Good. As a specific example, there is a display mode in which the selected icon changes from white to blue, and the background image of the alternate long and short dash line switches from blue to white.

  By selecting any one of these icons 702a to 702c, one or a plurality of blood vessel site icons 703a to 703c corresponding thereto are displayed. Subsequent injection protocol settings for each angiography, execution of medicinal solution injection, display of injection results, etc. can be carried out in the same procedure as described above, so detailed description is omitted. It shall be.

In the example of FIG. 15, as a matter of course, the display number of the imaging area icons 702 a to 702 c may be increased or decreased. Further, the imaging region icons 702a to 702c are not limited to this, and may be changed as appropriate. In other aspects of the invention, the following changes may be employed with respect to the imaging area icon:
-An imaging region icon representing an organ or the like included in the body segment is also displayed in a body segment other than the abdomen (head, chest, and lower limbs), and by selecting one of them, a corresponding blood vessel region icon is displayed. Is displayed,
-If multiple imaging area icons are displayed, display them in the order according to the routine of the examination;
-In the above description, it has been described that the imaging region icon is selected after the body segment icon is selected. However, a GUI screen may be used in which the body classification icon is not displayed and the imaging region icon is displayed from the initial screen. Even in this case, after the imaging region icon is selected, a predetermined blood vessel site icon is displayed, and a predetermined injection condition registered in advance is displayed by selecting the blood vessel site icon.

  According to the drug solution injection device 100 of the present embodiment as described above, in order to set an injection protocol for various blood vessel sites, the selection is performed by the following procedure instead of selection from the memory list as in the past. Can do. That is, first, a target body segment icon (imaging segment icon if necessary) is selected on the GUI screen of the display, and then a blood vessel region icon is selected. As a result, a predetermined injection condition registered in advance corresponding to the blood vessel site is presented, so that the injection protocol can be set by confirming this or correcting as necessary.

  In the conventional method of selecting one condition from the memory list, each condition in the memory list is not grouped for each part, or the condition in the list is simply numeric data, and the condition you want to select It sometimes took time and effort to pick out. However, according to the method as in the present embodiment, a group such as a body segment or an imaging region is first selected, and then a blood vessel part is selected. Therefore, for example, another blood vessel part (for example, the blood vessel part of the head) that is completely unrelated to the current examination (for example, the chest) is not selected. Moreover, since the body section, the imaging region, and the blood vessel part can be selected by selecting an icon, the selection can be performed intuitively with good operability.

  Further, in the conventional method of selecting one condition from the memory list, the screen is switched from a certain condition setting screen to the memory list display screen, and after returning to the condition setting screen again after selecting one condition. Sometimes it was. In this case, it is necessary to make selections, confirmations, corrections, etc. by switching between the screens (that is, switching the screen display many times). In addition, since all of the injection protocol setting operations can be performed within one GUI screen for protocol setting, the operability is good and the protocol setting can be performed efficiently and accurately.

  Specifically, the following effects can also be obtained. In other words, the interface used in this chemical injection device calls out selective angiographic details required by IVR from a group of large body parts such as the head, chest (including the heart), abdomen, and lower limbs for simple and instantaneous injection conditions. (Speed, amount, pressure limiter, imaging timing: delay) can be called. Furthermore, the blood vessel parts are arranged in the order of examination and can be selected without hesitation, enabling intuitive operation. As a result, it is possible to improve work efficiency at the medical site and to prevent erroneous setting of the injection protocol. Therefore, it contributes to quality improvement of inspection and shortening of time.

  In addition, after the injection is completed, the large part, the selective angiographic detailed part, and the display that can grasp the injection result according to the detailed part on the setting screen are provided on the setting screen, so that the operation is not divided.

  In addition, medical doctors, radiographers, and nurses can share information on contrasted fluoroscopic images and injection conditions at any location in the laboratory or operation room at the same time, ensuring that the next action is performed without fail. It becomes possible to do.

  As a specific example, a fluoroscopic image, a large body part, a selective angiographic detailed part, and an injection result corresponding to the detailed part may be confirmed in a centralized manner on a monitor facing a doctor. . In this way, in order to obtain preliminary information necessary for the treatment effect or when the contrast effect is insufficient, the contrast agent administration conditions that are additionally or fine-tuned under the same conditions can be quickly judged from the result screen and setting screen to obtain medical information. Instruct patients to inject and image themselves, or perform injections on their own, or confirm the total amount of contrast agent administered on the spot. Safety can be improved.

  In addition, after completion of the injection, the human body image and the injection result for each selected blood vessel site are displayed at once, and the same speed and amount can be set or fine-tuned again by looking at the injection result (with the fluoroscopic contrast image). Injection from the screen is possible immediately. At the same time, it is possible to perform risk management so that nephropathy does not occur due to overdose from the display of the total integrated amount. You may jump to the setting screen from the detailed blood vessel button or from the result list.

  The result of the injection shows the same human body image and blood vessel details as on the setting screen, and the injection results (speed, volume, integrated amount) corresponding to the detailed site are displayed in time series, and the operation is maintained with consistency with the setting screen. Becomes smooth.

[9. Medical examination system)
The chemical injection system according to one aspect of the present invention may constitute a part of a medical examination system. FIG. 16 is a diagram schematically illustrating an example of a medical examination system.

The medical examination system of FIG. 16 includes the following components connected on a network:
-Chemical injection system 500
-Hospital Information System HIS (Hospital Information System) 901
-Radology Information System (RIS) 902, which is a radiology information system
-PACS (Picture Archiving and Communication Systems) 903 which is an image storage server
An image viewer 904 which is a data processing device
A printer 905 for outputting information, etc.

  The above configuration is merely an example, and all illustrated elements are not essential to the present invention.

  Each device may be connected via a communication line such as a LAN (Local Area Network) or a dedicated line. The medical examination system may be compliant with DICOM (Digital Imaging and Communications in Medicine) which is a standard for digital medical images.

(Chemical solution injection system)
The chemical injection system 500 may be as described with reference to FIG. Here, a specific function of the imaging apparatus 300 will be described. The computer unit 303 of the imaging apparatus 300 may have at least one of the following functions, for example:
-Giving identification information (image ID) to the acquired image;
-Add imaging time information to the acquired image,
-Send the patient's fluoroscopic image data to the outside,
-Sending the exposure time data for the fluoroscopic imaging (one examination) performed to the outside,
-Sending exposure data to the outside in the fluoroscopic imaging (one examination) performed,
-Send identification information of the fluoroscopic imaging performed to the outside,
-Send any data to at least one of HIS, RIS, PACS,
-Send any data to the chemical infusion device,
-Send any data to the image viewer,
-Send arbitrary data to the printer.

  The HIS 901 is an in-hospital system that integrates an electronic medical record system, an order entry system, an inventory management system, a medical accounting system, and the like. However, some of these may be constructed as a system independent of the HIS.

  The accounting system may handle, for example, examination costs received by patients in a hospital where the system is installed. The inventory management system may manage, for example, inventory of members consumed by the imaging device and members consumed by the chemical solution injector (for example, a contrast medium syringe, a physiological saline syringe, etc.).

For example, the RIS 902 may manage imaging order data for imaging a patient. This imaging order data may include at least one of the following information, for example:
-Imaging work ID which is unique identification information
-Identification information of fluoroscopic imaging device-Identification information of patient-Date and time of imaging, etc.

The PACS 903 is for storing the fluoroscopic image data of the patient. The PACS 903 is an example and may be configured as a database server in which a dedicated computer program is installed. The PACS 903 may have at least one of the following functions:
-Save the image data received from the imaging device-Send the predetermined data stored to the workstation (image viewer)-Save to the connected predetermined image browsing device (not shown) Send certain data, etc.

  The image viewer 904 may be configured as a workstation by way of example, and may be used for browsing a fluoroscopic image, for example.

  This workstation is composed of a computer or the like as an example. Specifically, the workstation may include a computer main body, a computer unit provided therein, a storage device, a display device, an input device, and the like. Good. The arrangement position of the computer unit and the storage device is not particularly limited, and may be arranged inside or outside the computer main body. The display device is controlled by the computer unit and displays various data such as inspection data and captured images. The display device is composed of, for example, an LCD (Liquid Crystal Display). Examples of the input device include arbitrary devices such as a keyboard, a mouse, a trackball, and a joystick. When the display device is a touch display, the touch panel display also serves as an input device. The storage device stores various data. The storage unit device may include a storage device such as a hard disk drive.

  In other forms, the image viewer may be a portable device such as a tablet terminal. In this portable device, a processor unit, a memory, a storage device, and the like are built in a housing, and predetermined information is displayed on a touch panel display, for example.

  The printer 905 is connected to each device in the system via a network. For example, it may be configured such that predetermined information can be printed out on a paper medium in response to a command from a device provided in the chemical solution injection system 500. In another embodiment, for example, a predetermined information may be printed out on a paper medium in response to a command from the image viewer 904.

  Connection of the printer 905 to the network or connection to another device may be either wired or wireless.

For printer use, for example:
-The injected result may be printed out.

For medical inspection systems, for example:
-The injected result may be associated with the chart information via the network. Specifically, for example, the drug request may be surely performed by such association. Also, a contrast agent administration history may be stored as part of angiographic recording.
-By entering the network, one or more of fluoroscopic images, body monitor information (catelaboratory), and injection information can be grasped centrally on the monitor, and comprehensive judgment of treatment and image diagnosis can be performed quickly and reliably.

(Application example of contrast agent information)
Further, regarding the HIS inventory management system, the following configuration may be adopted. That is, in the inventory management system, (a) how much contrast medium is used and how much the contrast medium is in stock, and / or (b) predetermined contrast based on the situation It may be automatically determined by the system whether or not the agent needs to be replenished.

  The determination as described above is, for example, information such as the name of the contrast agent (contrast agent identification information), the total injection amount of the contrast agent, the injection time of the contrast agent, and the injection rate of the contrast agent (injection speed per unit time). May be performed based on the above. Information regarding such a contrast agent may be transmitted directly from the drug solution injector to the HIS, or may be transmitted via one or more other devices.

(Use example of inspection information)
Further, regarding the information on the catheter used in the examination, the following configuration may be adopted. That is, information on one or more catheters used in the examination may be stored in a predetermined storage area in the medical examination system.

For example, the following can be used as information about the catheter:
-Type of catheter (identification information)
-Size information such as diameter (French) (catheter thickness information)
-Number used, etc.

  The catheter information may be stored in a table format such as a catheter name table. Moreover, the information on the catheter may be stored in association with the information on the chemical liquid injector used in the examination, for example. In addition, the catheter information may be stored in association with the information of the performed infusion protocol.

  As a chemical | medical solution injection | pouring apparatus, you may be comprised so that the information (tabular form in an example) regarding the correlation with such a catheter and an injection | pouring protocol may be displayed on a 1 or several display. In addition, when a predetermined infusion protocol is selected, a catheter associated with the infusion protocol (for example, a catheter recommended for the infusion protocol or a catheter used in the last infusion protocol) is displayed on the display. It may be configured as follows. This allows the physician or health care professional to know which catheter to use with the infusion protocol.

[About other configuration examples such as chemical injection devices]
As mentioned above, although this invention was demonstrated with reference to some forms, naturally, unless the content conflicts, the technical matter disclosed by this specification can be combined suitably. Further, the present invention is not limited to the above contents, and various modifications can be made.

(S1) You may read the data regarding injection | pouring conditions from the card | curd medium which is an information storage medium to a chemical | medical solution injection apparatus. Various products can be used as the information storage medium. Data relating to the injection conditions can be downloaded online stored in an external database server.
(S2) The pressure of the injected chemical liquid can be calculated from the pressure that presses the piston member of the chemical syringe. For example, a pressure sensitive element is installed inside the chemical syringe or extension tube to directly detect the chemical pressure. It is also possible to do.
(S3) By determining the type of contrast medium in the chemical syringe to be mounted, it is possible to eliminate the operation of inputting the type of contrast medium and reduce the work load.

The chemical liquid injector and the system including the same are not limited to the above contents, and various modifications can be made as follows, for example:
(T1) An IC tag such as a syringe may include information on whether or not to heat the syringe.
(T2) At least a part of information read from the IC tag such as a syringe is printed using a printer or the like. Alternatively, data including at least a part of information read from an IC tag such as a syringe and at least chemical injection history data is printed using a printer or the like.
(T3) Information on whether the used syringe is discarded is managed by a predetermined management server in the system.
(T4) With the function of the controller unit of the chemical liquid injector, the estimated value of the chemical pressure during injection may be calculated using both the load cell and the motor current.

(T5-1) On the injection protocol setting screen, a predetermined help button is displayed on the screen, and when this button is pressed, the help text on the operation and display on the screen, the help image, the help guidance as sound, or these The computer unit of the chemical injection device is configured so that the combinations of the two are displayed.
(T5-2) The units of various numerical data displayed on the screen can be changed as appropriate. For example, the pressure may be switchable between at least two of “Kg / cm ² ”, “psi”, and “MPa”.
(T5-3) The contrast agent name (product name, etc.) is displayed on a part of the console screen. The computer of the chemical injection device has such a function.
(T5-4) A status such as whether the console is connected to another device or connected and interlocked is displayed on a part of the console screen. The computer of the chemical injection device has such a function.

(T6-1) In the case of a method of sucking a chemical liquid into an empty syringe, the chemical liquid injection device may be configured as follows:
-With the syringe set on the injection head and the suction tube connected to a chemical bottle or the like, when a predetermined button is pressed, the gasket (piston member, plunger) moves forward to release air. Here, the predetermined button may be an autofill button as a specific example.
-The chemical solution is then aspirated.
As this step, first, the chemical solution is aspirated halfway (ie, only a part of the target amount is drawn, not the whole amount).
-Next, the air bleeding operation is performed again.
-After that, the suction of the chemical solution is continued until the target amount is reached. This suction may be the same as the initial suction speed or may be faster. Thereafter, the preparation is completed by advancing the piston member of the syringe by a small amount.

(T6-2) It is good also as a chemical | medical solution injection | pouring apparatus by which the inclination sensor is incorporated in the injection | pouring head. In this case, the computer unit performs some or all of the following processes:
-It is determined whether or not the injection head is in a substantially vertical state (in other words, the front of the head on which the syringe is mounted is directed vertically upward).
-When the injection head is in a substantially vertical state, the autofill operation is allowed to be performed. Otherwise, autofill operation is prohibited.
Determine if the injection head is in a horizontal position or a position where the front is relatively low.
-In these postures, the liquid injection operation is allowed. Otherwise, the injection operation is prohibited.

(U1) As an operation for releasing air from the extension tube, the piston drive mechanism on the A syringe (contrast medium) side is operated, and then the piston drive mechanism on the B syringe (saline) side is operated. Also good. Alternatively, the piston drive mechanism on the A syringe (contrast medium) side and the piston drive mechanism on the B syringe (physiological saline) side may be operated simultaneously. A function called “auto purge” may be provided as an air bleeding operation.

  Note that the various components (devices, apparatuses, means, units, units, and the like) referred to in this specification do not have to be individually independent, and a plurality of components may be formed as a single member. Good. One component may be formed of a plurality of members. Some components may be part of other components. A part of a certain component and a part of another component may overlap.

  Here, in the present invention, the constituent elements in the computer unit (control circuit, processor unit) only have to be formed so as to realize their functions, and those realized by hardware are also realized by software. But it doesn't matter. For example, a certain component can be realized as dedicated hardware that exhibits a predetermined function, a processing device in which the predetermined function is realized by a computer program, a combination thereof, or the like.

  Various network systems for interconnecting devices can be used, for example, LAN (Local Area Network), WAN (Wide Area Network), CAN (Campus Area Network), WWW (World Wide Web), etc., or Any combination thereof may be used.

[10. Recent situation regarding angiography and specific examples of angiography]

(About DSA)
In the angiographic examination, an examination method called DSA (digital subtraction angiography) may be used. DSA refers to a method in which only a blood vessel containing a contrast agent is imaged by performing X-ray imaging of a blood vessel into which a contrast agent has been injected and computer-processing the image obtained thereby. Specifically, in DSA, for example, by subtracting a mask image from an angiographic image, it is possible to construct an image only for a vascular system without bones.

  As an example of a system for performing a DSA inspection, a system including a high voltage generation device, an X-ray tube device, an I.I. device, an optical system, an image processing system, and the like is known. Advantages of DSA include that a small amount of contrast medium is possible, images can be observed in real time, and transvenous arteriography is possible.

(About IVR)
In recent years, with the advance of interventional radiology (IVR) as a treatment technique, minimally invasive treatment has become possible. The IVR applies, for example, imaging by an X-ray CT apparatus or an angiography apparatus for treatment such as stent insertion, embolization, or dilation.

  In angiography, in general, in one example, a catheter is inserted from the blood vessel of the foot using a wire, and then the catheter tip is pushed to the brain and heart, and the contrast agent is poured when the catheter tip reaches the target examination site. . Since the wire is not twisted or twisted, a soft catheter can freely reach the target blood vessel by following the inside of the blood vessel using the wire as a conducting wire.

  Furthermore, the IVR is a technique in which this angiographic procedure can be used for treatment. That is, in IVR, treatment is performed using the same catheter while performing angiography.

  More specifically, in IVR, a doctor operates a catheter inserted in a blood vessel while viewing a transmission image of an X-ray in real time. Thereby, for example, treatment is performed such as expanding a blood vessel that has become narrow due to arteriosclerosis or the like (angiogenesis), or filling a coil to prevent blood from flowing into an aneurysm that may break the blood vessel. Alternatively, there is a case where treatment such as blocking blood in the blood vessels that nourish the cancer tissue (vascular embolization) is performed.

[12. Inspection example)
(Example of cardiac catheter test)
An example of a routine cardiac catheter test is one that examines a blood vessel site in sequence:
・ AO (thoracic aorta)
・ LVG (left ventricular angiography)
LCA (left coronary vein)
・ RCA (right coronary artery)

The outline of the cardiac catheter inspection is, for example, firstly capturing an image of a heart, a large blood vessel, and a pulmonary artery angiography and capturing the shape and flow of the heart large blood vessel. Then, the procedure moves to coronary angiography, and the state of the coronary artery that feeds blood to the myocardium, which is a nutritional blood vessel of the heart, is captured by a moving image. Next, for angina pectoris and acute myocardial infarction, a treatment method called PTCA (balloon therapy) is performed. Balloon therapy uses a catheter and a stent with balloons to improve the stenosis.

(An example of abdominal angiography)
An example of an abdominal examination routine is one that examines the following blood vessels in order:
・ Abdominal aorta ・ CA (abdominal artery)
・ CHA (total hepatic artery)
・ PHA (inherent hepatic artery)
-Superior mesenteric artery (portal vein) (SMA)
・ (Transcatheter arterial embolization: TAE)

  The outline of an angiographic examination of the abdomen is, for example, by first imaging the celiac artery and superior mesenteric artery angiography, observing the state of the tumor in the liver, biliary tract, pancreas, etc. To go. Since the complex blood vessels (hepatic artery, portal vein, hepatic vein) run like the liver, the contrast medium is injected many times until the target blood vessel is selected and the specific nutritional blood vessel is reached. The treatment is then completed by injecting or filling the medicine.

The inspection method is one example:
• Usually, the femoral artery is punctured.
-Insert a catheter from the puncture site, select the target blood vessel, and image it.

Examples of contrast agent injection conditions are as follows:
Abdominal aorta: injection rate 10-15 (ml / sec), injection volume 20-30 (ml).

Examples of abdominal cases include the following:
・ Abdominal embolization (TAE: transcatheter arterial embolization)
・ Renal arteriography
-Immobilization port-catalyst systems
・ BRATO (balloon-ocluded retrograde tranvenous obliteration)
・ Inferior vena cava filter
-IVR of varicocele
・ Pelvic artery TAE

(An example of angiographic examination of the brain)
An example of an abdominal examination routine is one that examines the following blood vessels in order:
・ AO (thoracic aorta)
・ CCA (common carotid artery)
・ IC (internal carotid artery)
・ EC (external carotid artery)

  The main purpose of this angiographic examination is, for example, the presence / qualitative diagnosis of cerebrovascular lesions such as cerebral aneurysms and cerebral infarctions and brain tumorous lesions. Before an operation such as an aneurysm or cerebral arteriovenous malformation that causes subarachnoid hemorrhage, observe the state in detail, or before surgery for a brain tumor, important blood vessels have not passed near the tumor, or the tumor It is examined whether blood vessels are biting into the body. In addition, it is possible to observe the bypass and how much blood vessels that have become thinner due to arteriosclerosis pass through the blood.

The inspection method is one example:
• Usually, the femoral artery is punctured.
-Insert a catheter from the puncture site, select the target blood vessel, and image it.

Examples of contrast agent injection conditions are as follows:
Aorta: injection rate 10-15 (ml / sec), injection volume 15-20 (ml).

Examples of head cases include the following:
・ Cerebral aneurysm
・ Intracranial arteriovenous malformation
・ Brainin infarction
・ Brain tumor

(Catheter used in angiography)
The catheter used in the angiographic examination is not limited, but for example, the following can be used:
JB2 catheter, Simmons catheter, headhunter catheter, shepherd hook catheter, cobra catheter, pigtail catheter, omniflash catheter, swan gantz catheter, berman catheter, multipurpose catheter, judkins catheter, amplatz catheter, ROTA, DCA, balloon catheter, stent catheter , Thrombus aspiration catheter.

  This application discloses at least the following inventions:

1. A chemical solution injection device for angiography for injecting a chemical solution through a catheter inserted into a blood vessel,
A1: at least one piston drive mechanism;
A2: a computer unit electrically connected to the piston drive mechanism to operate the piston drive mechanism;
A3: at least one display;
With
The computer unit is
a1: Displaying a plurality of selectable body segment icons or a plurality of selectable imaging region icons on the at least one display;
a2: When one of the plurality of body segment icons or imaging region icons is selected, a plurality of selectable blood vessel region icons (target regions) corresponding to the body segment or imaging region are displayed on the at least one display. Icon)
a3: When one of the blood vessel site icons is selected, the at least one display presents a liquid injection condition for angiography corresponding to the blood vessel site,
a4: When the confirmation or correction by the user is performed, the presented or modified injection condition is set as an injection protocol.
The chemical injection device is programmed as follows.

2. The computer unit is
a5: First, a plurality of selectable body segment icons are displayed on the at least one display,
a6: Next, when one of the plurality of body segment icons is selected, the imaging region icon corresponding to the body segment is displayed on the at least one display.
2. The chemical injection device according to 1 above, programmed as described above.

3. The computer unit is
A plurality of the body classification icons are displayed in a humanoid shape as a whole;
3. The chemical injection device according to 1 or 2, which is programmed as described above.

4). The computer unit is
Displaying one or more selected from the head, chest, abdomen, and lower limbs as the plurality of body segment icons,
The chemical solution injection device according to any one of the above items 1 to 3, which is programmed as described above.

5. The computer unit is
Displaying a plurality of the blood vessel site icons side by side in the vertical or horizontal direction;
The chemical injection device according to any one of the above 1 to 4, which is programmed as described above.

6). The computer unit is
The plurality of blood vessel site icons are sequentially displayed in a vertical direction or a horizontal direction in an order according to a routine according to a test purpose.
The chemical injection device according to 5 above, which is programmed as described above.

7). The chemical injection conditions presented are:
-Injection volume,
-Infusion rate,
The chemical solution injection device according to any one of 1 to 6, wherein one or more of a delay time and a pressure limit are included.

8). The computer unit is
a7: After injecting the chemical solution, the data of the injection conditions performed are displayed in the at least one display.
The chemical injection device according to any one of the above 1 to 7, which is programmed as described above.

9. The computer unit is
a8: At least the plurality of selectable body segment icons or the plurality of selectable imaging regions so that the drug solution injection to another blood vessel site (target site) can be repeated after the completion of the 1 time of drug solution injection Return to the icon display state,
The chemical solution injection device according to any one of 1 to 8, which is programmed as described above.

  Note that “at least the plurality of selectable body category icons or the plurality of selectable imaging region icons is displayed” means that only these icons are displayed, and those icons, for example, It may be either the case where both the blood vessel site icon is displayed.

10. The computer unit is
a9: When a plurality of times of chemical solution injection are performed, data of a plurality of injection conditions performed in each of the chemical solution injections is displayed in the at least one display.
10. The chemical injection device according to 9 above, which is programmed as follows.

11. The computer unit is
The plurality of injection condition data is displayed side by side in the vertical direction or the horizontal direction.
The chemical injection device according to the above 10, which is programmed as described above.

12 The computer unit is
a10: displaying the data of the total amount of the injected medicinal solution in the at least one display;
The chemical injection device according to the above 10 or 11, which is programmed as described above.

13. A chemical solution injection device for injecting a chemical solution through a catheter inserted into a blood vessel,
B1: an injection head having at least one piston drive mechanism;
B2: a console having a computer unit and at least one display electrically connected to the piston drive mechanism to operate the piston drive mechanism;
With
The console computer unit comprises:
a1: Displaying a plurality of selectable body segment icons or a plurality of selectable imaging region icons on the at least one display;
a2: When one of the plurality of body segment icons or imaging region icons is selected, a plurality of selectable blood vessel site icons corresponding to the body segment or imaging region are displayed on the at least one display. ,
a3: When one of the blood vessel site icons is selected, the at least one display presents a liquid injection condition for angiography corresponding to the blood vessel site,
a4: When the confirmation or correction by the user is performed, the presented or modified injection condition is set as an injection protocol.
The chemical injection device is programmed as follows.

14 The injection head comprises:
15. The chemical injection device according to 14 above, having two piston drive mechanisms operable independently of each other.

15. The injection head comprises:
15. The chemical injection device according to 13 or 14 above, which has an information display unit that displays predetermined information.

16. further,
An injection head holding means for holding the injection head;
The injection head holding means includes
Movable stand,
Ceiling suspension type holding arm, or
An injection head holding bar which is slidably attached to a part of the imaging device and holds the injection head;
The chemical injection device according to any one of 13 to 15 above.

  In the above, as an example, a chemical liquid injection device for angiography (that is, a chemical liquid injection device for angiography) is illustrated, but the chemical liquid injection device of the present application may be used for applications other than angiography. Good. In this case, for example, the term “blood vessel site” is replaced by the term “target site” in one example, and a drug solution injection device expressed thereby is also included in the present invention.

The present application also relates to a method for setting a chemical injection protocol:
(1) A method for setting a chemical injection protocol in a chemical injection device for angiography for injecting a chemical through a catheter inserted into a blood vessel,
-Displaying a plurality of selectable body segment icons or a plurality of selectable imaging region icons on at least one display of the liquid injector;
-When one of the plurality of body segment icons or imaging region icons is selected, a step of displaying a plurality of selectable blood vessel site icons corresponding to the body segment or imaging region on the at least one display. When,
-When one of the blood vessel site icons is selected, presenting on the at least one display the conditions for injecting a chemical solution for angiography corresponding to the blood vessel site;
The step of setting the presented chemical solution injection condition or the corrected chemical solution injection condition as an injection protocol when confirmed or corrected by the user;
A method for setting a chemical injection protocol.

(2) In the step of displaying a plurality of selectable body segment icons or a plurality of selectable imaging region icons,
-First, a plurality of selectable body segment icons are displayed on the at least one display;
-Next, when one of the plurality of body segment icons is selected, the imaging region icon corresponding to the body segment is displayed on the at least one display;
The setting method of the chemical injection protocol described above.

(3) Furthermore,
Having one or more steps of injecting a drug solution into a patient through a catheter according to the set injection protocol,
A method for setting the chemical injection protocol described above.

(Method of setting a chemical injection protocol in a chemical injection device for uses other than angiography)
The present application further relates to a method for setting the following drug injection protocol:
(4) A method for setting a chemical injection protocol in a chemical injection device for injecting a chemical,
-Displaying a plurality of selectable body segment icons or a plurality of selectable imaging region icons on at least one display of the liquid injector;
-When one of the plurality of body segment icons or imaging region icons is selected, a step of displaying a plurality of selectable target region icons corresponding to the body segment or imaging region on the at least one display. When,
-When one of the target site icons is selected, presenting the liquid injection condition corresponding to the target site on the at least one display;
The step of setting the presented chemical solution injection condition or the corrected chemical solution injection condition as an injection protocol when confirmed or corrected by the user;
A method for setting a chemical injection protocol.

(Explanation about the design)
The present application also discloses a design for an operating device for an injector for a chemical injector as shown in FIG. In this figure, a screen during injection of the chemical solution as shown in FIG. 9 is displayed as an example. In addition, each image on this screen, for example, the syringe image itself, the small human body image itself in the display area, or the display itself in the pressure display window can be an object of partial design independently. The displayed numerical values and the like do not limit the contents of the design.

  It is good also as a structure by which a screen as shown in FIG. 18 is displayed after injection | pouring of a chemical | medical solution. On this screen, a horizontally oriented triangular image is displayed at the approximate center of the screen. This horizontally oriented triangle image may be displayed in a circular image. When this triangular image is pressed, for example, the screen may be switched to a screen as shown in FIG.

100 Chemical Solution Injection Device 110 Injection Head (Injector Head)
130 Piston drive mechanism 144 Computer unit (control circuit)
145 Various sensors 147a Heater 147b Display 147c Input device 148 Power supply unit (main unit)
150 Console 151 Display 153 Computer unit (control circuit)
157a Operation button 157b Hand switch 157c Slot 157d Foot switch 200 Syringe 210 Cylinder member 211b Conduit portion 214 Locking projection 220 Piston member 240 Protective case 241 Body member 300 Imaging device 303 Computer unit (control circuit)
304 Imaging unit 305 Interpretation monitor 701 Human body images 701a to 701d Body segment icons 702a to 703b Imaging region icons 703a to 703c Blood vessel region icon 713 Pressure display window 713a Pressure display unit 713b Pressure limit display 715 Injection condition 716a Syringe image 716b Droplet image 717a ˜717d Result display bar 719 Integrated amount display 721 Display area 721a Standby button 721b Human body image icon (during injection)
725 Remaining amount display part

Claims (14)

A chemical solution injection device for injecting a chemical solution,
A1: at least one piston drive mechanism;
A2: a computer unit electrically connected to the piston drive mechanism to operate the piston drive mechanism;
A3: at least one display;
With
The computer unit is
a1: Displaying a plurality of selectable body segment icons or a plurality of selectable imaging region icons on the at least one display;
a2: When one of the plurality of body segment icons or imaging region icons is selected, a plurality of selectable target region icons corresponding to the body segment or imaging region are displayed on the at least one display. ,
a3: When one of the target site icons is selected, the contrast liquid injection condition corresponding to the target site is presented on the at least one display.
a4: When the confirmation or correction by the user is performed, the presented or modified injection condition is set as an injection protocol.
Is programmed to,
Furthermore, the computer unit includes:
It is programmed to display on the at least one display the data of a plurality of injection conditions carried out in each of the chemical liquid injections when a plurality of chemical liquid injections are carried out. Information on the target part that is the target is included, and information on the total amount of the injected medicinal solution is also displayed on the at least one display.
Chemical injection device. The computer unit is
a5: First, a plurality of selectable body segment icons are displayed on the at least one display,
a6: Next, when one of the plurality of body segment icons is selected, the imaging region icon corresponding to the body segment is displayed on the at least one display.
2. The chemical injection device according to claim 1, which is programmed as follows. The computer unit is
A plurality of the body classification icons are displayed in a humanoid shape as a whole;
The chemical injection device according to claim 1 or 2, which is programmed as follows. The computer unit is
Displaying one or more selected from the head, chest, abdomen, and lower limbs as the plurality of body segment icons,
The chemical injection device according to any one of claims 1 to 3, which is programmed as described above. The computer unit is
Displaying a plurality of the target region icons side by side in the vertical direction or the horizontal direction,
The chemical injection device according to any one of claims 1 to 4, which is programmed as follows. The computer unit is
The plurality of target region icons are displayed in order in a vertical direction or a horizontal direction in an order according to a routine according to a test purpose.
The chemical injection device according to claim 5, which is programmed as follows. The chemical injection conditions presented are:
-Injection volume,
-Infusion rate,
The chemical injection device according to any one of claims 1 to 6, wherein one or more of -delay time and -pressure limit are included. The computer unit is
A state in which at least the plurality of selectable body segment icons or the plurality of selectable imaging region icons are displayed so that the injection of the chemical solution to another target site can be repeated after the completion of the single chemical injection. Return to the
The chemical injection device according to any one of claims 1 to 7 , which is programmed as follows. The computer unit is
The plurality of injection condition data is displayed side by side in the vertical direction or the horizontal direction.
The chemical injection device according to any one of claims 1 to 8 , which is programmed as follows. The chemical solution injection device according to any one of claims 1 to 9, wherein the computer unit is further configured to display one or both of an injection amount and an injection rate of the chemical solution as the injection condition data. . A chemical solution injection device for injecting a chemical solution,
B1: an injection head having at least one piston drive mechanism;
B2: a console having a computer unit and at least one display electrically connected to the piston drive mechanism to operate the piston drive mechanism;
With
The console computer unit comprises:
a1: Displaying a plurality of selectable body segment icons or a plurality of selectable imaging region icons on the at least one display;
a2: When one of the plurality of body segment icons or imaging region icons is selected, a plurality of selectable target region icons corresponding to the body segment or imaging region are displayed on the at least one display. ,
a3: When one of the target site icons is selected, the contrast liquid injection condition corresponding to the target site is presented on the at least one display.
a4: When the confirmation or correction by the user is performed, the presented or modified injection condition is set as an injection protocol.
Is programmed to,
Furthermore, the computer unit includes:
It is programmed to display on the at least one display the data of a plurality of injection conditions carried out in each of the chemical liquid injections when a plurality of chemical liquid injections are carried out. Information on the target part that is the target is included, and information on the total amount of the injected medicinal solution is also displayed on the at least one display.
Chemical injection device. The injection head comprises:
The chemical injection device according to claim 11 , comprising two piston drive mechanisms operable independently of each other. The injection head comprises:
The chemical | medical solution injection device of Claim 11 or 12 which has an information display part which displays predetermined | prescribed information. further,
An injection head holding means for holding the injection head;
The injection head holding means includes
Movable stand,
Ceiling suspension type holding arm, or
An injection head holding bar which is slidably attached to a part of the imaging device and holds the injection head;
The chemical injection device according to any one of claims 11 to 13 , which is