JP2020124598A - Chemical injection device - Google Patents

Abstract

To provide a chemical injection device capable of setting an injection protocol with simple operation and intuitively.SOLUTION: The chemical injection device comprises: an injection head having a piston drive mechanism; and a console having a display and a computer unit electrically connected to the piston drive mechanism. The computer unit is configured so as to: a1: cause a display to display a plurality of selectable body section icons or a plurality of selectable imaging region icons; a2: cause the display to display a plurality of selectable target part icons corresponding to the body section or imaging region, when one of the body section icons or the imaging region icons is selected from the icons; a3: present a contrast radiography chemical injection condition corresponding to a target part on the display, when one of the target part icons is selected; and a4: set a presented or modified injection condition as an injection protocol, when a user confirms or modifies the presented injection condition.SELECTED DRAWING: Figure 7

Description

The present invention relates to a drug solution injector that can set an injection protocol intuitively with a simple operation.

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

Especially regarding angiography, the following can be said. In other words, the recent angiography technology using a liquid injection device is not the development of percutaneous catheterization, but the development of X-ray equipment, catheters, contrast agents, etc. Has evolved into (IVR). Considered by procedure, it is divided into intraarterial injection of a drug locally, embolization of a blood vessel, dilation and opening of a blood vessel using a catheter. Subjects include tumors, bleeding, vascular lesions and the like. For tumors, there are intra-arterial injection of anti-cancer agents and transcatheter arterial embolization (TAE). For bleeding, continuous infusion of vasoconstrictor and arterial embolization are available, and for vascular lesions, thrombolysis and percutaneous angioplasty (Percutaneous Transluminal Angioplasty: PTA) are available.

Percutaneous transluminal coronary angioplasty (Percutaneous Transluminal Angioplasty: PTCA) is rapidly developing among the percutaneous angioplasty currently in use, and PTCA is a balloon catheter or atherectomy. (Intracoronary atherectomy (surgery) resection) and stent implantation. Against this background of the evolution of angiography, various blood vessels that are directly connected to organs and lesions in the head, chest (including heart), abdomen, and lower limbs are selectively or the same blood vessel is imaged many times. In order to check the proper blood vessel running, change the imaging angle to know the front-back relationship of blood vessels, make fine adjustments to the injection conditions that prevent the catheter from coming off, and check it after treatment.) Is required.

As described above, in the angiography examination, the contrast agent concentration and the injection rate are appropriately adjusted according to the blood vessel site, and the contrast agent is repeatedly injected. This is one difference from the CT or MRI imaging examination that ends.

For example, Patent Document 1 discloses an example of a drug solution injector for angiography. This drug solution injecting device is used in the angiography method as follows: In the catheterization method, a catheter is introduced percutaneously into a blood vessel (artery) by a guide wire without making an incision in the skin. Then, after the tip of the catheter is positioned near the origin of the target blood vessel, the drug solution injecting device is operated to inject the contrast agent according to a predetermined injection protocol, and continuous imaging is performed using the imaging device. As a result, the imaged blood vessel is displayed on a predetermined display, and the doctor performs diagnosis and treatment while viewing the image.

As an angiography chemical injection device, one provided with an injection head and a console is known as disclosed in, for example, Patent Document 1. The injection head for angiography has the following features different from the injection head for CT examination and MR examination. That is, in angiography, since the drug solution is injected through a thin catheter introduced into the blood vessel, there is a feature that the injection pressure becomes extremely high. Therefore, in many cases, the syringe is attached to the injection head in a state where the syringe is put in a protective case or the like. This point is different from the injection head for CT examination or MR examination in which the syringe is directly attached or is attached via an adapter holding a part of the syringe.

WO2006/068171

In general, when using a medical fluid injection device for angiography, a doctor immediately instructs medical personnel such as a radiologist or a nurse on the injection conditions (injection rate and injection amount), and the medical personnel Alternatively, the injection condition is set by inputting into the console of the injection device in the operation room. In one example, the medical staff may call a predetermined infusion condition registered in advance from the memory list to set the infusion condition.

On the other hand, as described above, in recent angiography, it is required to selectively image a large number of blood vessels or to image the same blood vessel many times in accordance with the purpose of treatment, and to surely connect the treatment to the image diagnosis at the same time. .. Then, in general, it is sometimes a routine to inject a contrast agent into a single patient, for example, more than ten times to image various blood vessels or the same blood vessel many times.

In the conventional liquid injection device for angiography, the blood vessel region of the patient is not configured to be selected on the screen, and in general, a desired condition is selected from a pre-registered injection condition list (memory list). There are many selection methods. Therefore, there is room for improvement from the viewpoint of selecting an injection condition/setting an injection protocol intuitively with a simple operation.

Note that the above-mentioned problems are not necessarily unique to the liquid medicine injecting device for angiography, and can be applied to other kinds of liquid medicine injecting devices.

An object of the present invention is to perform a liquid injection with a simple operation and intuitively settable injection protocol in a contrast examination in which the concentration of a contrast agent and the injection speed are appropriately adjusted according to the target site and a plurality of injections of the liquid are repeated. It is to provide a device and the like.

Means for Solving the Problems The chemical liquid injector according to one aspect of the present invention is as follows:
A drug solution injector for injecting a drug 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,
Equipped with
The computer unit is
a1: display a plurality of selectable body division icons or selectable plurality of imaging area icons on the at least one display,
a2: When one of the plurality of body division icons or the imaging area icon is selected, the plurality of selectable target part icons corresponding to the body division or the imaging area are displayed on the at least one display. ,
a3: when one of the target site icons is selected, the at least one display presents a medical fluid injection condition for contrast corresponding to the target site,
a4: When the confirmation or correction is made by the user, the proposed or modified injection condition is set as an injection protocol,
Liquid injection device programmed as follows.

As described above, the “chemical injection device” of the present invention has the following components:
-Piston Drive Mechanism-Computer Unit-Display Here, these components may be provided in any device that constitutes the drug solution injector. That is, in the case where the liquid injector has an injection head, a console and the like;
(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) A computer unit may be provided in 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, the display and the like can take 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 the imaging device used with the chemical solution injection device is not limited at all. That is, a drug injection device used together with an angiography device, a CT device, an MRI device, an ultrasonic device, or an angiography device as an imaging device may also correspond to the drug injection device of the present application. The drug solution injector may be one that injects a drug solution through a catheter.
The term “catheter” is, in a narrow sense, a length of about several tens of cm (30 cm or more in one example), which is introduced into a blood vessel and used for angiography. It also includes a type having a length of about several cm and being punctured into a blood vessel such as an arm.
The “medicine solution” refers to, for example, a contrast agent, physiological saline, or a mixture thereof.
The "injection protocol" indicates what kind of liquid medicine is to be injected and how much and at what speed. In the present specification, “injection protocol” and “(chemical solution) injection condition” may be synonymous.
As used herein, the term “user” refers to a person who uses the liquid medicine injection device, and is intended to be, for example, a doctor or a medical professional.

“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 predetermined device is connected to another device, it may be either a wired connection or a wireless connection.

“Electrically connected” means that components are connected to each other so that electric signals can be transmitted in one direction or two directions, and may be in the form of wired connection or wireless connection. .. In addition to the case where the constituent elements are directly connected to each other, the case where the constituent elements are indirectly connected to each other through the other elements is also included.

“Icons” are (i) those which display predetermined information and can be selected by the user, and (ii) those which simply display predetermined information and are configured to be selectable. Including both those that do not. All or some of the icons displayed on the screen can be selected by touching the respective display locations with a touch pen or the operator's finger, or with a cursor or the like on the screen.

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

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

ADVANTAGE OF THE INVENTION According to this invention, the chemical injection device etc. which can set an injection protocol intuitively by a simple operation can be provided.

It is a figure which shows typically the whole structure of a chemical injection device. It is a mimetic diagram showing an example of an inspection room of a medical institution, an investigation room, and a machine room. It is a perspective view which shows a syringe and a protection case. It is a flow chart which shows an example of a procedure, such as setting of an injection protocol and injection of a medical fluid. It is a figure which shows an example of the GUI screen for setting an injection protocol (setting screen, initial). It is a figure which shows an example of the GUI screen for setting an injection protocol (setting screen, imaging region selection). It is a figure which shows an example of the GUI screen for setting an injection protocol (setting screen, a blood vessel site|part is selected). It is a figure which shows an example of the GUI screen for setting an injection protocol (setting screen, a blood vessel site|part is selected). It is a figure which shows an example of the screen during execution of chemical injection. It is a figure which shows an example of the screen after injection (implementation condition display). It is a figure which shows an example of the GUI screen for setting an infusion protocol (setting screen, other blood vessel parts are selected). It is a figure which shows an example of the screen after injection (implementation condition display). It is a figure which shows an example of the screen after injection (implementation condition display). It is a figure which shows another example of the screen after injection (implementation condition display). It is a figure which shows an example of the GUI screen for setting an injection|pouring protocol (after a body division selection, an imaging region is selected). It is a figure showing an example of composition of a medical examination system. FIG. 6 is a six-sided view showing an example of the 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 injecting system 500 of the present embodiment includes a drug solution injector 100 for angiography, which injects at least a contrast agent as a drug solution into a patient. The medical fluid injection system 500 may also include an imaging device 300 that captures a fluoroscopic image of a patient.

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

In the case of such a configuration, as an 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. Good. Each room 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 arranged in the examination room.

Note that the injection head 110 and the console 150, or the injection head 110, the console 150, and the power supply unit 148 may be integrated into a chemical injection device. Such a chemical injection device may be arranged in the examination room. Here, "integrally configured" does not necessarily mean that all the devices are housed in one housing, the devices are arranged adjacent to each other, and are integrally moved by a doctor or medical staff. It also includes such a configuration. For example, a chemical injection device may be one in which a device corresponding to the injection head 110 and the console 150 (and the power supply unit 148 if necessary) is mounted on a movable stand.

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

[1. Angiography Syringe]
The angiographic syringe 200 has, for example, a cylindrical cylinder member 210 and a piston member (plunger) 220 slidably inserted therein. A commercially available syringe may be used as the angiography syringe 200. The volume 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 opening at the 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 circular shape, an elliptical shape, a polygonal shape, or a shape obtained by partially deforming the shape (for example, an I-cut shape, a D-cut shape). Shape).

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

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

The locking projection 214 may have any shape, but in one example, a shaft member extending in the axial direction of the syringe and a disk-shaped portion formed at the end of the shaft member are provided. May be included. In another form, it may be composed 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.

The angiographic syringe 200 is generally set with a guaranteed withstand pressure of the product. The guaranteed breakdown voltage may be, for example, 1000 psi. The syringe 200 may be distributed as a sterilized disposable product. The syringe 200 may be contained in a 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 the drug solution, or may be a suction type that uses the drug solution by sucking it into an empty syringe.

[2. Protective case)
The angiographic syringe 200 may be attached to the injection head 110 in a state of being inserted into the protective case 240 as illustrated in FIG. As such a protective case 240, for example, it may have a hollow cylindrical main body member 241. The body member 241 is configured such that the front end side is closed and the rear end side is opened. The syringe 200 is inserted through the opening on the rear end side of the protective case 240. An opening 241a for passing the conduit portion 211b of the syringe is formed on the closed distal end surface of the main body member 241. Although not limited, the opening 241a may be formed so as to be located at the center of the tip surface.

A flange portion 241b may be formed at the base end portion of the protective case 240. The flange portion 241b may be formed with an indicator for distinguishing the upper and lower sides of the protective case. The indicator may be, for example, a protrusion. The protrusion may be stamped, for example, "UPSIDE". The flange portion 241b is preferably designed to have 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 the syringe may be provided with one or more identification members (identifying means) for identifying the type of the protective case and/or the syringe. The identifying means may be a predetermined data carrier member. As the data carrier member, an IC tag, a bar code, a magnetic material or the like may be used.

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

[4. Extension tube)
An extension tube is connected to the tip of the conduit 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, by way of example, a first tube portion extending from a conduit portion of one syringe to a branch portion of the extension tube, and a second tube portion extending from a conduit portion of the other syringe to a branch portion, It may have 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's body, the injection head is operated to push out the drug solution in one or more syringes, thereby injecting the drug solution into the blood vessel through the catheter.

When a drug solution is sucked into the syringe, a suction tube for sucking the drug solution into the syringe may be attached to the tip of the conduit portion of the syringe. As the suction tube, for example, the tip side is curved to form a J shape as a whole. You may use it with what was formed in.

[5. Injection head)
The injection head 110 may include, for example, a housing having a length in the front-rear direction, and one or more syringes may be attached to the front end side of the housing. The injection head 110 may be a single type that holds a single syringe or a dual (two-cylinder) type that holds two syringes. For example, a commercially available blood vessel 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 that is a drive source, a motion conversion mechanism that converts the rotational output of the motor into a linear motion, and a ram member (presser member) that is moved by the motion conversion mechanism to advance or retract the piston member of the syringe. And may have. As such a piston drive mechanism, a known mechanism generally used in a chemical injection device can be used.

Two piston drive mechanisms may be provided, in which case one may be for the contrast agent syringe and the other may be for the saline syringe. Each piston drive mechanism is configured to be independently operable, and they can be simultaneously or separately operated according to a control signal from the computer unit.

Typical piston drive mechanism operations include the following:
-Chemical injection (advance of ram member)
-Suction of chemical liquid (retraction of ram member)
In the “chemical solution injection”, the motor is operated in accordance with a predetermined motor control signal to advance the ram member, thereby performing the chemical solution injection according to the set injection protocol.
In the "medical solution suction", the motor is operated in accordance with a predetermined control signal to retract the piston member, thereby sucking the chemical solution into the syringe.

In the case of the prefilled syringe, it is not necessary to suck the drug solution.

(Computer unit)
The computer unit 144 may have a CPU (Central Processing Unit) that performs arithmetic processing, a memory, an interface, and the like, and may realize various functions by executing a computer program 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 has a program installed therein.

The computer unit 144 is electrically connected to various elements of the injection head described below. Then, the computer unit 144 may be configured (programmed) to perform the following processing in one example:
-Perform predetermined arithmetic processing based on signals from various sensors (details below)-Send predetermined motor control signal to piston drive mechanism to control operation-Predetermined information on display etc. (details below) Display-Receive input from the user through an input device (details below) such as physical buttons-Control the operation of the heater (details below), etc.

(Various sensors)
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 sensor, Hall sensor, etc.)
-One or more tilt sensors-One or more rotary encoders-One or more motor current detectors, etc.

(A1) Pressure Sensor The pressure sensor is for calculating the pressure with which the piston member is pressed, and thus the estimated pressure value of the chemical liquid can be obtained. The pressure sensor may be, for example, a load cell. The load cell should just be provided in the position which can detect the pressure which the ram member of a piston drive mechanism presses a piston member.

When using the detection result of the load cell, for example, when obtaining the estimated value of the pressure of the chemical liquid while injecting the chemical liquid, the calculation is performed in consideration of the needle size, the concentration of the chemical liquid, the injection conditions, etc. May be.

(A2) Syringe detection sensor The syringe detection sensor is used to detect whether or not a syringe and/or a protective case is attached, or to determine what kind of syringe and/or protective case is attached. It is what is done. Such sensors may be contact or non-contact, such as:
-Contact sensor using physical contact-Electrical sensor that electrically detects an object-Magnetic sensor-Hall sensor-Optical sensor-Proximity sensor, etc.

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

(A4) Rotary Encoder A rotary encoder or the like for detecting the rotation speed and/or rotation 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 liquid based on the motor current without using a load cell or the like. In this method, the motor current is monitored by the motor current detector during operation of the motor, and an estimated pressure value of the chemical liquid is obtained based on the motor current.

(Other components of 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)
-1 or more physical buttons (input device, 147c)
-One or more clamp mechanisms-One or more syringe receivers (protective cover receivers)
-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 liquid in the syringe at a predetermined temperature. The heater may have any form and heating method, but as an example, a sheet heater may be used. The sheet-shaped heater may be provided in the syringe receiving portion (protective case receiving portion) 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 on the injection head. The display may be provided, for example, in a part of the housing of the injection head. Alternatively, it may be a sub-display prepared separately from the housing.

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

The content displayed on this display is not particularly limited, but may be the following:
-Predetermined status display during injection operation-Injection condition of the liquid medicine to be injected-Injection condition of the injected liquid-Injection amount of the liquid-Pressure of the liquid, etc.

(B2-2) Head status display unit For example, a part of the housing of the injection head may be provided with a predetermined light emitting unit for notifying the user of a predetermined state of the injection head. As an example of the light source, an LED (Light Emitting Diode) or the like can be used. Such a light emitting section has a function as a head status display section, and can change the color and color of the light emission to notify the user of various statuses of the injection head.

(B3) Physical Button The physical button is not particularly limited, but may be the following one:
-Forward button for advancing the ram member-Retract button for advancing the ram member-Accelerator button for increasing the moving speed of the ram member by pressing the forward button or backward button at the same time-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, etc. of the injection head housing. In the case of a two-cylinder type 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) Clamping Mechanism The clamping mechanism is a mechanism that holds the flange portion of the protective case, and may be one that holds the flange portion by sandwiching the flange portion from both sides with a pair of holding members. Such holding members may be, for example, each formed in a substantially arc shape and opened and closed by rotating around a predetermined axis. In another form, one end may be pivotally supported, and a single member configured to rotate around the axis to open and close may be provided, and the flange portion may be locked by the member.

(B5) Manual Knob The manual knob is used to manually move 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 may be located on the back end, side, top, bottom, etc. of the injection head in one example.

(B6) RFID communication device When a syringe or a protective cover is provided with data holding means such as an IC tag, a wireless communication device for reading the information of 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 wirelessly. In one example, the data receiver may be adapted to 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 wirelessly.

As the communication protocol of the data receiver and the data transmitter, a suitable protocol may be appropriately adopted in consideration of the communication method 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 the used contrast agent (contrast agent identification information)
-Total injection volume of contrast agent-injection time of contrast agent-injection rate of contrast agent, etc.

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

[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. The physical form of the console 150 is not particularly limited, but may be, for example, one having one or more housings.

In one example, the computer unit 153 may be arranged in one housing, and the display 151 may be arranged on the front surface of the housing to form an integrated console.

However, the form of the housing is not limited at all. The housing 150 may have a suitable housing shape depending on the situation in which the console 150 is used. For example, it could be:
-A stationary housing shape suitable for being used by being placed on a table in an operating room,
-A housing shape that can be suitably attached to a predetermined support member or a wall (for example, a thin housing whose back side is formed to be substantially flat).

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.

Further, it may be a touch panel display.

Multiple displays may be provided on the console.

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

The computer unit 153 has a number of functions according to the installed programs, and the functions of the console include, for example, 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 pre-stored in a predetermined storage area of the console, or may be downloaded from the outside via a network or the like and stored in the predetermined storage area, or It may be read from an information storage medium inserted in the slot.

The above-mentioned functions are respectively configured in a computer unit by a computer program, and 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 an injection control. It may be realized by the department.

The injection protocol setting GUI display function displays a GUI screen for setting the injection protocol on the display. Specifically, a body division icon, an imaging area icon, a blood vessel part icon, etc. are displayed, and when the blood vessel part icon is selected, a predetermined liquid injection condition is presented on the display.

The infusion protocol setting function sets the content as an infusion protocol after the medical fluid infusion condition presented as described above is confirmed/corrected by the doctor or medical staff.

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

The post-injection screen display function displays on the display information regarding the performed chemical injection.

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

The injection control function operates the piston drive mechanism according to the set injection protocol to perform injection of the chemical liquid. It is also possible to operate only one of the piston drive mechanisms and to operate both of them 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 of generating injection history data. The “injection history data” may be, for example, one or more of the following:
-Injection work ID, which is unique identification information for each injection work
-Date and time of start and end of injection-Identification information of the drug injection device-Identification information of the drug solution and the imaging site which are the above-mentioned injection conditions, etc.

The data format 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 the function of transmitting the injection history data to the outside. Specifically, the data may be transmitted to a predetermined external device and/or network. In addition to the injection history data, for example, the data of the drug solution, the syringe, or the protective case acquired from the IC tag of the syringe or the protective case may be transmitted to the outside.

(Input means)
The console 150 may have, for example, a hand switch 157a, operation buttons 157b, a slot 157c, etc. as input means.

The hand switch 157a is connected to the console by wire or wirelessly and is operated by the user's hand, 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. These physical buttons may be provided on the front surface of the housing as an example.

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 to this, a foot switch 157d (see FIG. 2) is connected to the power supply unit 148 so that the operation of the injection head 110 and/or the console 150 can be controlled by operating the foot switch 157d. 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 have a speaker or the like (not shown) for outputting sound and/or voice.
-The console 150 may have a microphone or the like (not shown) for inputting voice.

[7. Imaging device]
As the imaging device 300, for example, a conventionally known angiography device or the like can be used. The imaging device 300 includes an imaging unit 304 including a C-arm for imaging a predetermined blood vessel region of a patient lying on a bed, a computer unit 303 for controlling the imaging unit 304, and one or a plurality of image interpretation monitors 305. It may be.

The C-arm may be provided with an X-ray tube at one end and an FRD (Flat Panel Detector) at the opposite end. It may be an angiography 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 may be arranged in the examination room as an example.

The imaging device and the drug solution injecting device may be connected to each other by wire or wirelessly, and may be configured to perform data communication by a predetermined communication protocol. It is also preferable that the imaging device and the chemical injection device be configured to be interlockable. That is, even if the predetermined operation of the chemical liquid injector is used as a trigger, the predetermined operation of the imaging device is performed at the same time as the operation or at a timing with a predetermined time interval with respect to the operation. Good. On the contrary, the predetermined operation of the imaging device is triggered, and the predetermined operation of the chemical liquid injector is performed at the same time as the operation or at a timing with a predetermined time interval with respect to the operation. Good.

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

As an example of the communication protocol for realizing the above-mentioned interlocking, the 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 incorporated therein. Similarly, the communication unit may be external or internal to the console.
(C2) The chemical injection device is not limited to an angiography device having a C-arm, and may be another imaging device such as an X-ray CT imaging device.
(C3) At least the injection head is provided with a battery unit that supplies electric power, and the battery unit may be installed at any position in the examination room or may be held by a part of the movable stand.
(C4-1) A chemical injection device capable of controlling a predetermined operation of the chemical injection device from outside the examination room using a wired or wireless remote controller. In this case, the wireless system may be a system using infrared rays, or may be 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 such as power-on/power-off of the apparatus. As another example, the start and/or stop of any movement of the injection head may be controlled by a remote controller.
(C5-1) Control unit such as a miniaturized console (which may have one or more buttons and/or a display, for example) is arranged near the injection head. ..
(C5-2) Such a control unit may be held together with the injection head on a movable stand, as an example. Alternatively, for example, such a control unit may be held on a ceiling-suspended arm together with the injection head.

[8. Setting of injection protocol)
Next, an example of the setting of the injection protocol in the chemical 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 on a side portion, a lower portion, or the like instead of the upper portion of the screen. Further, the display is not limited to the horizontally long shape, and may be displayed as a rectangle, a vertically long shape, a polygon, or the like.

As shown in FIG. 5, this GUI screen may include a remaining amount display portion 725 indicating the remaining amount of the liquid medicine in the mounted syringe. The remaining amount display portion 725 is displayed at any of the upper left portion of the screen, the upper central portion of the screen, the upper right portion of the screen, the left central portion of the screen, the central central portion of the screen, the right central portion of the screen, the lower left portion of the screen, the lower central portion of the screen, and the lower right portion of the screen. However, in this example, it is displayed on the upper right side of the screen.

As shown in FIG. 5, this GUI screen may include a human body image 701 in which a plurality of body classification 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 displayed in the horizontal direction (horizontal direction), but in another form, it may be displayed in the vertical direction (vertical direction). Further, instead of the front view shape, the side view shape of the human body may be displayed in the horizontal direction or the 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 of FIG. 5, the entire length (corresponding to the height) with respect to the screen size (width). The 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 higher than the center, or at a position lower than the center, but in this example, the human body image 701 is higher than the center. Is displayed at the position. When the human body image is a vertical type, the human body image may be displayed near the center of the screen, on the left side of the center, or on the lower side of the center.

The plurality of body division icons 701 may include a head 701a, a chest 701b, an abdomen 701c, and a lower limb 701d. Note that only some of these may be displayed. In addition, an arbitrary plurality of these may be combined into 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, the division is highlighted (inverted display state) and a mark indicating the heart is displayed as an example. To be done.

Further, a plurality of blood vessel part icons 703a to 703c corresponding to the selected chest (heart) 701b are displayed. The blood vessel part icons 703a to 703c may be inspection parts as follows:
-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 region. In another form, it may be a contrast-enhanced part including an organ name or the like or an imaging technique name.

The plurality of blood vessel part icons 703a to 703c may be displayed on any of the upper side, the lower side, the right side, and the left side of the human body image 701, but in this example, they are displayed on the lower side.

In this way, when the icons 703a to 703c are displayed below the human body image 701, the user can operate the operation of selecting a body section and the subsequent selection of a blood vessel site as a series of flows, in other words, those operations. There is an advantage that the operation can be easily performed on the GUI. Further, as described later, in this embodiment, the parameters of the injection condition may be displayed below the icons 703a to 703c. In this case, there is an advantage that it is easy to carry out the operation of selecting a body section, selecting a blood vessel part, and then correcting parameters as a series of steps.

The plurality of inspection site 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 blood vessel part icons 703a to 703c are displayed in an order corresponding to a general routine of angiography (described later in detail). Here, the icons are arranged in the order of LVG, LCA, and RCA, which means that the general routine in this angiography is the order of LVG, LCA, and RCA.

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

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

(Step S3)
When, for example, the LVG icon 703a is selected on the screen of FIG. 6, the injection condition 715 preset for LVG (left ventricular angiography) is displayed on the screen, as shown in FIG. When the LVG icon 703a is selected, the icon 703a may be highlighted (reverse display state). Also, 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 [ml/sec] in one example.
The “amount” is the amount of drug solution to be injected, and its unit is [ml] in one example.
The “delay” is the time difference between the injection start time of the drug solution and the imaging start time of the imaging device, and its unit is [sec] in one example. There are cases where the imaging is started after a predetermined time has elapsed from the start of the liquid injection, and cases where the imaging is started a predetermined time before the start of the 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 and the like. The unit is, for example, [psi], [kg/cm ² ] or [MPa].

In this example, each of the above parameters may be displayed as an icon. Some or all of these icons may preferably allow the user to select them and modify the numerical values.

For example, pressing an icon may display a numeric keypad image, an image button to increase or decrease a numerical value, or a combination thereof, allowing a doctor or health care professional to manipulate the image to change the numerical value. ..

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

When the voice recognition is used in this way, the following advantages can be obtained. That is, in angiography, a doctor operates a catheter, but according to voice recognition, it is not necessary to touch a physical button, a touch panel, or the like for an input operation, which is hygienic.

In another form, a gesture recognition function for recognizing a person's movement (gesture or the like) without contact may be used. The gesture recognition function may be realized by an image recognition means 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 again to FIG. 7, on this screen, the standby icon 721a is displayed in the display area 721. Although not limited to this, the standby icon 721a may be configured to appear at a timing when the predetermined blood vessel part icons 703a to 703c are selected, as an example.

(Steps S4 to S6)
In the screen of FIG. 7, for example, after the doctor or medical staff 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, the injection protocol is set, and the drug solution can be injected by the injection protocol. 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 one more time.

(Step S7)
After the display on the screen is switched to “Start OK” as described above, the doctor or the medical staff performs a predetermined input, so that the liquid medicine is injected according to the set injection protocol. Examples of the “predetermined input” include the following:
-Hand switch operation-Predetermined operation for the associated angiography 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. May be.

During the injection of the chemical liquid, for example, an image showing the execution of injection as shown in FIG. 9 may be displayed. In this example, a human body image icon 721b capable of confirming the currently selected body section is displayed in the display area 721 at the top of the screen. Regarding the human body image icon, the selected portion may be highlighted (reverse display state) so that the selected portion can be easily visually recognized. Information on the current blood vessel region (“LVG”) is also displayed. In one example, this “LVG” information may be displayed in the display area 721 as character information.

In other forms, this “LVG” information may be displayed at any position outside the display area 721 on the screen. Not only the character information, but also an image such as a design may be displayed.

In the display area 721, the character "injecting" may be displayed to indicate that the liquid medicine is injected.

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

The screen of FIG. 9 may display information on the chemical solution injection conditions (speed, amount, delay time), information during chemical solution injection (elapsed time, chemical solution remaining amount), and the like.

On the screen of FIG. 9, a pressure display window 713 for displaying the pressure during the injection of the chemical liquid may also 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 segment changes according to the pressure. Information such as 600 [psi], 800 [psi], and 1200 [psi] may be displayed above the pressure display unit 713a. Further, the pressure limit display 713b may be displayed so that it is easy to visually confirm how much the pressure limit is, and the pressure limit display 713b may be, for example, a graphic display such as a triangular shape or an arrow shape. Good.

If it is necessary to interrupt the injection of medicinal solution or infusion, for example,
-Releasing the operation (for example, pressing) of the hand switch-Releasing the operation (for example, pressing) of the foot switch-Pressing any button on the injection head-Injecting by pressing the stop button (one example) on the console May stop.

An example of the hand switch may be one in which a case that is grasped by the user is provided with a start button for starting the injection operation and a stop button for stopping the injection operation separately. .. Alternatively, it may be operated by switching on/off of one button, or may be one that outputs an input signal only while pressing one button.

(Step S8)
When the injection of the chemical liquid is completed, as shown in FIG. 10, the data of the implemented injection conditions is displayed in the result display bar 717a in the setting screen. In this example, the data of the injection rate and the injection amount are displayed in the result display bar 717a as an example. 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, it 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 under the icon 703a instead of under the position corresponding to the performed inspection (here, "LVG"), that is, under the icons 703b and 703c. This is because the user can easily understand which examination site is the condition for injecting the chemical liquid.

In the screen of FIG. 10, as an example, the total amount 719 of the injected drug solution is displayed. The total amount 719 can be displayed at any position on the screen, but in this example, it is at a position adjacent to the result display bar 717a (in one example, on the side of the display bar 717a).

In the screen of FIG. 10, as an example, the remaining amount of the chemical liquid in the syringe, which is the amount consumed in the current chemical liquid injection, is displayed in the residual amount display portion 725. In this example, the remaining amount has changed from 150 ml to 130 ml.

(Step S9)
Succeedingly, in a step S9, the doctor or the medical staff determines whether further angiography is necessary. When the whole procedure of the examination is completed and further angiography is not necessary, the examination is completed. On the other hand, when performing the next angiography, the process returns to step S1 and the angiography is performed on other blood vessel parts by the same steps as above.

FIG. 11 shows a case where LCA: left coronary angiography is performed as the next step. When the doctor or the medical staff selects the LCA icon 703b, the selected icon 703b is highlighted (inverted display state) and the corresponding injection condition 715 is displayed on the screen, as described above. To be done. Thereafter, by the same steps as above, the injection protocol for LCA can be set and the drug solution can be injected according to the injection protocol.

When the angiographic examination for LCA is completed, as shown in FIG. 12, the data of the injection conditions performed this time may be displayed in the result display bar 717b. In this example, in the result display bar 717b, as an example, similar to the above, the data of the injection speed and the injection amount are displayed. The result display bar 717b may be displayed at any position, but in this example, it 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, but in this example, the result display bar 717b is displayed so as to be lined up on the upper side of the previous result display bar. Has been done.

Also regarding the result display bar 717b, the display positions of the injection speed and the injection amount are displayed below the position corresponding to the performed inspection (here, “LCA”), that is, not below the icons 703a and 703c but below the icon 703b. It is like this.

As the total amount of the injected medical liquid, the total amount of the injected medical liquid in the first and second angiography is displayed on the integrated amount display unit 719. The total amount 719 can be displayed at any position on the screen, but in this example, it is at a position adjacent to the current result display bar 717b (in one example, on the side of the display bar 717b).

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

FIG. 13 shows an example in which the LCA is selected again and the liquid medicine is injected in the fourth imaging. As described above, 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 part 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 the injection speed and the injection amount may be displayed below the icon 703d. In the case of the display shown in FIG. 14, the number of displayed icons 703a to 703d may increase, but the numerical data in the result display bar 717 will be displayed in a staircase shape.

(Abdominal angiography)
Subsequently, angiography of the abdomen will be described. For the abdomen, head, lower limbs, etc., basically, it is possible to set the injection protocol and carry out the injection of the drug solution in the same manner as the above-mentioned chest. However, in this embodiment, with respect to the abdomen, the imaging area icons 702a to 702c, which are middle items such as "celiac artery", "kidney", and "liver", are first displayed, and one of them is selected , Icons 703a to 703c of the blood vessel part corresponding to the imaging region are displayed.

The imaging area icon is not particularly limited, but 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, which allows a doctor or medical staff to easily select visually.

The three icons 702a to 702c may be displayed so as to overlap with the selected body classification icon (here, abdomen, icon 701c). Although the three icons 702a to 702c may be displayed so as to fit within the selected body segmentation icon, as shown in FIG. 15, within a region slightly larger than the selected body segmentation icon (see the alternate long and short dash line). It may be displayed.

Regarding the display of the area indicated by the one-dot chain line, the area may be displayed in, for example, an opaque color, or may be in a semitransparent color (thus, the body division icon is partially visible). Furthermore, the edge portion of the area may be displayed in a gradation shape (the closer to the edge, the lighter the color becomes). In the example of the figure, the alternate long and short dash line is displayed as a rectangle, but it is also possible to adopt a display mode in which the corner portion is rounded.

The color is not limited and can be freely set. For example, the one-dot chain line portion may be blue and the unselected icons may be white.

It should be noted that if any one of the icons 702a to 702c is selected, the selected icon is highlighted and even if 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, while the background image of the alternate long and short dash line changes from blue to white.

By selecting any one of these icons 702a to 702c, one or a plurality of blood vessel part icons 703a to 703c corresponding thereto are displayed. Since subsequent injection protocol setting for each angiography, execution of drug solution injection, display of injection results, and the like can be carried out in the same procedure as described above, detailed description thereof is omitted. It shall be.

In the example of FIG. 15, as a matter of course, the display number of the imaging area icons 702a to 702c may be increased or decreased. Further, the imaging area icons 702a to 702c are not limited to this, and may be changed appropriately. In another form of the invention, the following changes may be adopted for the imaging area icon:
-In body divisions other than the abdomen (head, chest, lower limbs), an imaging area icon representing an organ or the like included in the body division is displayed, and by selecting one, a corresponding blood vessel part icon is displayed. Is displayed,
-If multiple imaging area icons are displayed, display them in an order according to the examination routine,
In the above description, after selecting the body classification icon, the imaging area icon is selected. However, the GUI screen may be such that the body classification icon is not displayed and the imaging area icon is displayed from the initial screen. Even in this case, a predetermined blood vessel part icon is displayed after the selection of the imaging region icon, and a predetermined injection condition registered in advance is displayed by selecting the blood vessel part icon.

According to the drug solution injector 100 of the present embodiment as described above, in order to set the injection protocol for various blood vessel parts, the following procedure is performed instead of the conventional selection from the memory list. You can That is, first, on the GUI screen of the display, the desired body classification icon (imaging classification icon if necessary) is selected, and then the blood vessel part icon is selected. As a result, a predetermined infusion condition registered in advance corresponding to the blood vessel site is presented, so that the infusion protocol can be set by confirming this or correcting it if necessary.

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

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 selecting one condition, the condition setting screen is displayed again. Sometimes it was. In this case, it was necessary to switch between screens (that is, switch the screen display many times) to make selections, confirmations, corrections, etc. However, according to the configuration of the present embodiment, 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.

Further, specifically, the following operational effects are also obtained. That is, with the interface adopted in the liquid medicine injecting device this time, the selective angiography detailed region required for IVR is called from a group of large body parts such as the head, chest (including heart), abdomen, and lower limbs, and the injection conditions can be simply and instantly injected. (Speed, amount, pressure limiter, imaging timing: delay) can be called. Furthermore, since the blood vessel parts are arranged in the order of inspection, selection can be made without hesitation, and intuitive operation becomes possible. As a result, it is possible to improve work efficiency in the medical field and prevent erroneous settings of the injection protocol. Therefore, it also contributes to improving the quality of inspection and shortening the time.

Further, after the injection is completed, a large site, a selective angiography detailed site, and a display capable of integrally grasping the injection result corresponding to the detailed site are provided on the setting screen, so that the operation is not divided.

In addition, the contrasted fluoroscopic image and injection conditions can be shared by all medical staff including doctors, radiologists, and nurses at any place in the examination room or operation room, and the next action can be performed without fail. It becomes possible to do.

As a specific example, a fluoroscopic image, a large body region, a selective detailed angiographic region, and an injection result according to a detailed region may be centrally confirmed on a monitor facing a doctor in a laboratory. .. By doing this, in order to obtain preliminary information necessary for the treatment effect or the treatment plan and to obtain preliminary information necessary for the treatment plan, it is possible to quickly judge the contrast agent administration condition under the same condition or finely adjusted from the result screen/setting screen and perform medical treatment. Injecting and injecting images into the workers or performing the injection by themselves, or the total dose of the contrast agent can be confirmed on the spot, so the administration of the contrast agent is stopped for the subjects whose renal function has deteriorated, and the onset of nephropathy occurs. You can prevent it and improve the safety.

After the injection is completed, the human body image and the injection result for each selected blood vessel part are displayed at once, and the injection result can be seen (with the fluoroscopic contrast image) to set the same speed and amount again or to make the same fine adjustment. Injection from the screen is possible immediately. At the same time, it is possible to perform risk management so that nephropathy does not develop due to overdose from the display of total integrated dose. You may jump to the setting screen from the detailed blood vessel button or from the result list.

As for the injection result, the same human body image and detailed blood vessel site as the setting screen are displayed, and the injection result (speed, volume, integrated amount) according to the detailed site is displayed in time series, and the consistency with the setting screen is maintained and the operation is performed. Becomes smooth.

[9. Medical inspection system]
The drug solution injecting system according to an aspect of the present invention may form a part of a medical inspection system. FIG. 16 is a diagram schematically showing an example of the medical examination system.

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

Note that the above configuration is merely an example, and not all illustrated elements are 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. Further, this medical inspection system may be based on DICOM (Digital Imaging and Communications in Medicine) which is a standard relating to digital medical images.

(Chemical injection system)
The chemical liquid injection system 500 may be as described with reference to FIG. 1. Here, the specific functions of the image pickup apparatus 300 will be described. The computer unit 303 of the image pickup apparatus 300 may have at least one of the following functions, for example:
-Add identification information (image ID) to the acquired image,
-Adding imaging time information to the acquired image,
-Transmitting the fluoroscopic image data of the patient to the outside,
-Sending the exposure time data in the fluoroscopic imaging (one examination) performed to the outside,
-Sending the exposure dose data in the fluoroscopic imaging (one examination) performed to the outside,
-Sending the identification information of the performed fluoroscopic imaging to the outside,
-Send arbitrary data to HIS, RIS and/or PACS,
-Send arbitrary data to the liquid injector,
-Send arbitrary 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 HIS.

The accounting system may handle, for example, examination costs received by a patient in a hospital or the like where the system is installed. The inventory management system may be, for example, a system that manages the inventory of components consumed by the imaging device and components consumed by the chemical injection device (eg, contrast agent syringe, physiological saline syringe, etc.).

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

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

The image viewer 904 may be configured as a workstation in one example, and may be used to browse a fluoroscopic image or the like, for example.

This workstation is composed of a computer or the like by way of example, and more specifically, it 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 to display 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 an arbitrary device such as a keyboard, a mouse, a trackball, and a joystick. When the display device is a touch type display, the touch panel type display also serves as an input device. The storage device stores various data. The storage device may be configured to include a storage device such as a hard disk drive.

In another form, the image viewer may be a portable device such as a tablet terminal. This portable device has a processor, a memory, a storage device, and the like in a housing, and displays predetermined information on a touch-panel type display as an 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 included in the chemical liquid injection system 500. In another form, for example, a predetermined information may be printed out on a paper medium in response to a command from the image viewer 904.

The printer 905 may be connected to the network or to another device by a wired or wireless method.

Regarding the use of printers, for example:
-The injection result may be printed out.

For medical inspection systems, for example:
-Injected results may be associated with medical record information via the network. Specifically, for example, such an association may ensure that the drug claim is definitely carried out. In addition, the contrast agent administration history may be stored as a part of the record of angiography.
-By entering the network, one or more of fluoroscopic images, body monitor information (category), and injection information can be grasped in a centralized manner on a monitor, and comprehensive judgment of treatment and image diagnosis can be performed quickly and reliably.

(Example of using contrast agent information)
Further, the HIS inventory management system may have the following configuration. That is, in the inventory management system, (a) which contrast agent is used and to what extent the contrast agent is in stock, and/or (b) a predetermined contrast based on the situation. The system may automatically determine whether or not it is necessary to replenish the agent.

The determination as described above is made by, 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 speed of the contrast agent (injection speed per unit time). It may be performed based on. The information regarding such a contrast agent may be directly transmitted from the drug solution injector to the HIS, or may be transmitted via one or more other devices.

(Example of using inspection information)
Further, regarding the information of the catheter used in the examination, the following configuration may be adopted. That is, information about 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 information can be used as information about the catheter:
-Catheter type (identification information)
-Size information such as diameter (French) (catheter thickness information)
-Number of pieces used, etc.

The catheter information may be stored in a tabular format such as a catheter name table. Further, the information on the catheter may be stored in association with the information on the drug solution injector used in the examination, for example. Further, the information on the catheter may be stored in association with the information on the performed injection protocol.

The drug solution injector may be configured to display information (in one example, in a tabular format) on the association between such a catheter and the injection protocol on one or more displays. Also, when a predetermined infusion protocol is selected, the catheter associated with that infusion protocol (eg, the catheter recommended for that infusion protocol or the catheter previously used in that infusion protocol) is shown on the display. It may be configured as follows. This allows the physician or health care professional to know which catheter to use for the infusion protocol.

[Regarding another configuration example of the chemical liquid injector]
Although the present invention has been described above with reference to some modes, it goes without saying that the technical matters disclosed in this specification can be appropriately combined unless the contents conflict with each other. Further, the present invention is not limited to the above contents and can be variously modified.

(S1) Data regarding injection conditions may be read from the card medium, which is an information storage medium, into the chemical injection device. Various products can be used as the information storage medium. The data regarding the injection conditions can be stored online in an external database server and downloaded.
(S2) The pressure of the drug solution to be injected can be calculated from the pressure that presses the piston member of the drug solution syringe. For example, a pressure sensitive element is installed inside the drug solution syringe or extension tube to directly detect the drug solution pressure. It is also possible to do so.
(S3) By determining the type of contrast agent of the drug solution syringe to be attached, the operation of inputting the type of contrast agent is unnecessary, and the work load can be reduced.

The chemical liquid injector and the system including the same are not limited to the above contents, but can be variously modified as follows, for example:
(T1) An IC tag such as a syringe may include information as to whether or not the syringe is heated.
(T2) At least a part of the information read from the IC tag of the syringe or the like is printed using a printer or the like. Alternatively, data including at least some items of information read from an IC tag such as a syringe and the injection history data of the chemical liquid is printed using a printer or the like.
(T3) A predetermined management server in the system manages information as to whether or not the used syringe has been discarded.
(T4) With the function of the controller unit of the chemical liquid injector, the estimated value of the chemical liquid 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 it is pressed, help text about operations and display on the screen, pelp image, help guidance as voice, or these The computer unit of the drug solution injector is configured to display the combination of.
The unit of various numerical data displayed on the (t5-2) screen can be appropriately changed. For example, as for the pressure, at least two of “Kg/cm ² ”, “psi”, and “MPa” may be switchable.
(T5-3) The contrast agent name (product name, etc.) is displayed on a part of the screen of the console. 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 is connected and linked is displayed on a part of the screen of the console. The computer of the chemical injection device has such a function.

(T6-1) In the case of the method of sucking the drug solution into the empty syringe, the drug solution injector may be configured as follows:
-When the syringe is set on the injection head and the suction tube is connected to the chemical solution bottle or the like, and a predetermined button is pressed, the gasket (piston member, plunger) advances to perform air bleeding. Here, the predetermined button may be an autofill button as a specific example.
-Then, suction of the drug solution is performed.
-In this step, first, aspirate the drug solution halfway (that is, do not draw the entire target amount, but only a part).
-Then, the air bleeding operation is performed again.
-Then, continue sucking the chemical solution until the target amount is reached. This suction may be the same as or faster than the initial suction speed. After that, the preparation is completed by advancing the piston member of the syringe by a small amount.

(T6-2) The chemical injection device may have a tilt sensor built in the injection head. In this case, the computer unit does some or all of the following:
-Determine whether the injection head is substantially vertical (in other words, the front of the head on which the syringe is mounted faces vertically upward).
-Permit the autofill operation when the injection head is in a substantially vertical position. If not, the autofill operation is prohibited.
-Determine whether the injection head is in a horizontal position or a relatively low front position.
-In these postures, the injection operation of the chemical liquid is allowed. If not, the injection operation is prohibited.

(U1) As the operation for bleeding air from the extension tube, the piston drive mechanism on the A syringe (contrast agent) side is operated, and then the piston drive mechanism on the B syringe (physiological saline) side is operated. Good. Alternatively, the piston drive mechanism on the A syringe (contrast agent) 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.

It should be noted that the various constituent elements (devices, devices, means, units, units, etc.) referred to in the present specification do not have to be independent entities, and a plurality of constituent elements may be formed as a single member. Good. One component may be formed of a plurality of members. One component may be part of another component. 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) may be formed so as to realize their functions, and those realized by hardware or 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 a predetermined function is realized by a computer program, or a combination thereof.

Various network systems can be used for interconnecting devices, for example, LAN (local area network), WAN (wide area network), CAN (campus area network), WWW (world wide web), or the like, or However, any combination thereof may be used.

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

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

As a system for performing the DSA inspection, a system including a high voltage generator, an X-ray tube device, an II device, an optical system, an image processing system, etc. is known as an example. The advantages of DSA are that a small amount of contrast agent can be used, images can be observed in real time, and transvenous arteriography is also possible.

(About IVR)
Further, in recent years, with the progress of interventional radiology (IVR) as a treatment technique, minimally invasive treatment has become possible. The IVR is an application of imaging using, for example, an X-ray CT apparatus or an angiography apparatus for medical treatment such as stent insertion, embolization, or dilatation.

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

In addition, IVR is a technique that makes this angiographic procedure also applicable to 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 into a blood vessel while observing a transmission image of X-rays in real time. Thereby, for example, treatment is performed such as expanding a blood vessel narrowed due to arteriosclerosis (vascularization) or filling a coil so that blood does not flow into an aneurysm that may break the blood vessel. Alternatively, treatment such as blocking blood from blood vessels that nourish cancer tissues (vascular embolization) may be performed.

[12. Inspection example)
(Example of cardiac catheterization)
An example of a cardiac catheterization routine includes sequentially examining vascular sites such as:
・AO (thoracic aorta)
・LVG (left ventricular contrast)
・LCA (left coronary vein)
・RCA (right coronary artery)

The outline of the cardiac catheterization examination is, for example, first of all, capturing an angiographic image of the heart, a large blood vessel, and a pulmonary artery to capture the shape and its flow in the heart large blood vessel as a moving image. Then, the procedure shifts to coronary angiography, and the state of the coronary arteries, which are the feeding blood vessels of the heart and carry blood to the myocardium, is captured as a moving image. Next, for angina/acute myocardial infarction, a treatment method called PTCA (balloon therapy) is performed. In balloon therapy, a stenosis is improved by using a balloon-attached catheter or stent.

(An example of angiography of the abdomen)
An example of an abdominal examination routine involves sequentially examining vascular sites such as:
・Abdominal aorta・CA (celiac artery)
・CHA (common hepatic artery)
・PHA (proprietary hepatic artery)
・ Superior mesenteric artery (portal vein) (SMA)
・(Transcatheter arterial embolization: TAE)

The outline of the angiographic examination of the abdomen is, for example, first, by imaging the celiac and superior mesenteric arteriography, observing the state of the tumor formed in the liver, biliary tract, pancreas, etc., and identifying the artery serving as the feeding blood vessel of the tumor. To go. Since it has complicated blood vessel movements like the liver (hepatic artery, portal vein, hepatic vein), the target blood vessel is selected and the contrast agent is injected many times before reaching the specific feeding blood vessel. After that, the treatment is completed by injecting or filling the medicine.

The inspection method is, for example, as follows:
-Usually puncture the femoral artery.
-Insert a catheter through the puncture site, select the target blood vessel, and image it.

An example of the injection conditions of the contrast agent is as follows:
-Abdominal aorta: injection rate 10-15 (ml/sec), injection amount 20-30 (ml).

Abdominal cases include, by way of example, the following:
-Abdominal embolization (TAE: transcatheter arterial embolization)
・ Renal angiography
・In-plant reservoir (inplantation port-catheter systems)
・BRATO (balloon-occluded retrograde tranversion obliteration)
・Inferior vena cava filter
・Various varicocele IVR
・Pelvic artery TAE

(An example of angiography of the brain)
An example of an abdominal examination routine involves sequentially examining vascular sites such as:
・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 neoplastic lesions. Before surgery for an aneurysm or cerebral arteriovenous malformation that causes subarachnoid hemorrhage, observe the condition in detail, and before surgery for a brain tumor, check whether important blood vessels pass near the tumor or the tumor. It can be checked whether the blood vessels bite into the. In addition, the bypass can be observed, and the extent to which blood vessels that have become thin due to arteriosclerosis pass through can be investigated.

The inspection method is, for example, as follows:
-Usually puncture the femoral artery.
-Insert a catheter through the puncture site, select the target blood vessel, and image it.

An example of the injection conditions of the contrast agent is as follows:
-Aorta: injection rate 10-15 (ml/sec), injection amount 15-20 (ml).

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

(Catheter used for angiography)
Catheter used in angiography may include, but is not limited to, the following:
JB2 Catheter, Simmons Catheter, Headhunter Catheter, Shepherd Hook Catheter, Cobra Catheter, Pigtail Catheter, Omni Flash Catheter, Swankantz Catheter, Birman Catheter, Multipurpose Catheter, Judkins Catheter, Amplatz Catheter, ROTA, DCA, Balloon Catheter, Stent Catheter , Thrombus suction catheter.

This application discloses at least the following inventions:

1. A drug injection device for angiography, which injects a drug 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,
Equipped with
The computer unit is
a1: display a plurality of selectable body division icons or selectable plurality of imaging area icons on the at least one display,
a2: When one of the plurality of body segment icons or the imaging region icon is selected, a plurality of selectable blood vessel region icons (target regions) corresponding to the body segment or the 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 an angiographic drug solution injection condition corresponding to the blood vessel site,
a4: When the confirmation or correction is made by the user, the proposed or modified injection condition is set as an injection protocol,
Liquid injection device programmed as follows.

2. The computer unit is
a5: First, display a plurality of selectable body division icons on the at least one display,
a6: Next, when one of the plurality of body division icons is selected, the at least one display displays an imaging area icon corresponding to the body division.
The drug solution injector according to 1 above, which is programmed.

3. The computer unit is
Displaying a plurality of the body classification icons in a humanoid shape as a whole,
The drug solution injector according to 1 or 2 above, which is programmed as follows.

4. The computer unit is
As the plurality of body classification icons, one or more selected from a head, a chest, an abdomen, and a lower limb is displayed.
The drug solution injector according to any one of 1 to 3 above, which is programmed.

5. The computer unit is
Displaying a plurality of the blood vessel site icons side by side in the vertical or horizontal direction,
The drug solution injector according to any one of 1 to 4 above, which is programmed as follows.

6. The computer unit is
The plurality of blood vessel part icons are displayed in order in the vertical direction or the horizontal direction in the order according to the routine according to the inspection purpose,
The drug solution injector according to 5 above, which is programmed.

7. The chemical injection conditions presented are:
-Injection volume,
-Infusion rate,
-The delay time, and-the chemical liquid injector according to any one of 1 to 6 above, which includes one or more of a pressure limit.

8. The computer unit is
a7: displaying the data of the performed injection conditions in the at least one display after the chemical injection.
The drug solution injector according to any one of 1 to 7 above, which is programmed.

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

Note that "at least the state in which the plurality of selectable body division icons or the plurality of selectable imaging area icons are displayed" means that only these icons are displayed, and those icons, for example, It does not matter whether both of the blood vessel part icons are displayed.

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

11. The computer unit is
Data of the plurality of injection conditions are displayed side by side in the vertical or horizontal direction,
11. The drug solution injector according to 10 above, which is programmed.

12. The computer unit is
a10: displaying data on the total amount of the infused drug solution in the at least one display,
The drug solution injector according to 10 or 11, which is programmed as follows.

13. A drug solution injector for injecting a drug 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 electrically connected to the piston drive mechanism for operating the piston drive mechanism and at least one display;
Equipped with
The computer unit of the console is
a1: display a plurality of selectable body division icons or selectable plurality of imaging area icons on the at least one display,
a2: When one of the plurality of body division icons or the imaging area icon is selected, the at least one display is caused to display a plurality of selectable blood vessel part icons corresponding to the body division or the imaging area. ,
a3: When one of the blood vessel site icons is selected, the at least one display presents an angiographic drug solution injection condition corresponding to the blood vessel site,
a4: When the confirmation or correction is made by the user, the proposed or modified injection condition is set as an injection protocol,
Liquid injection device programmed as follows.

14. The injection head is
15. The liquid medicine injection device according to 14 above, which has two piston drive mechanisms that can operate independently of each other.

15. The injection head is
15. The liquid injector according to 13 or 14 above, which has an information display unit for displaying predetermined information.

16. further,
An injection head holding means for holding the injection head is provided,
The injection head holding means,
Movable stand,
Ceiling-suspended 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 drug solution injector according to any one of 13 to 15 above.

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

The application also relates to a method of setting up a drug infusion protocol:
(1) A method for setting a drug solution injection protocol in a drug solution injector for angiography, which comprises injecting a drug solution through a catheter inserted into a blood vessel,
-Displaying a plurality of selectable body division icons or a plurality of selectable imaging area icons on at least one display of the drug solution injector;
-When one of the plurality of body division icons or imaging area icons is selected, causing the at least one display to display a plurality of selectable blood vessel part icons corresponding to the body division or imaging area. When,
Presenting, when one of the blood vessel site icons is selected, on the at least one display an angiographic drug injection condition corresponding to the blood vessel site;
Setting the presented medical fluid infusion condition or the modified medical fluid infusion condition as an infusion protocol when confirmed or corrected by the user;
And a method for setting a drug injection protocol.

(2) In the step of displaying a plurality of selectable body division icons or a plurality of selectable imaging area icons,
-First, display a plurality of selectable body division icons on the at least one display,
-Next, when one of the plurality of body segment icons is selected, the at least one display displays an imaging region icon corresponding to the body segment.
, The method for setting the drug solution injection protocol described above.

(3) Furthermore,
Injecting a drug solution into a patient's body through a catheter according to the set injection protocol, comprising one or more steps,
The method for setting the drug solution injection protocol described above.

(Method of setting the chemical injection protocol in the chemical injection device for applications other than angiography)
The present application further relates to a method of setting up the following drug infusion protocol:
(4) A method for setting a drug solution injection protocol in a drug solution injector for injecting a drug solution, comprising:
-Displaying a plurality of selectable body division icons or a plurality of selectable imaging area icons on at least one display of the drug solution injector;
-When one of the plurality of body division icons or imaging area icons is selected, causing the at least one display to display a plurality of selectable target site icons corresponding to the body division or imaging area When,
Presenting, on the at least one display, a liquid injection condition corresponding to the target site when one of the target site icons is selected;
Setting the presented medical fluid infusion condition or the modified medical fluid infusion condition as an infusion protocol when confirmed or corrected by the user;
And a method for setting a drug injection protocol.

(Explanation about design)
The present application also discloses a design of an operating device for an injector for a chemical liquid injector as shown in FIG. In this figure, the screen during injection of the chemical liquid as shown in FIG. 9 is displayed as an example. Each image on this screen, for example, the image of the syringe itself, the small image of the human body 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 do not limit the content of the design in any way.

A screen as shown in FIG. 18 may be displayed after the chemical solution is injected. On this screen, a horizontally oriented triangular image is displayed in the approximate center of the screen. The horizontal triangular image may be displayed in a circular image. For example, when the triangular image is pressed, the screen may be switched to the screen shown in FIG. 10.
(Appendix)
D1. A drug solution injector for injecting a drug 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: comprises at least one display,
The computer unit is
a1: display a plurality of selectable body division icons or selectable plurality of imaging area icons on the at least one display,
a2: When one of the plurality of body division icons or the imaging area icon is selected, the at least one display displays a plurality of selectable target site icons corresponding to the body division or the imaging area. ,
a3: when one of the target site icons is selected, the at least one display presents a medical fluid injection condition for contrast corresponding to the target site,
a4: When the confirmation or correction is made by the user, the proposed or modified injection condition is set as an injection protocol,
Liquid injection device programmed as follows.
D2. The computer unit is
a5: First, display a plurality of selectable body division icons on the at least one display,
a6: Next, when one of the plurality of body segment icons is selected, the at least one display displays an imaging area icon corresponding to the body segment.
Is programmed to.
D3. The computer unit is programmed to display the plurality of body section icons in a generally humanoid shape.
D4. The computer unit is programmed to display, as the plurality of body division icons, one or more selected from a head, a chest, an abdomen, and a lower limb.
D5. The computer unit is programmed to display the plurality of target site icons side by side in a vertical direction or a horizontal direction.
D6. The computer unit is programmed to display the plurality of target site icons in order in a vertical direction or a horizontal direction in an order according to a routine according to an inspection purpose.
D7. The drug infusion conditions presented include one or more of infusion volume, infusion rate, lag time, and pressure limit.
D8. The computer unit is
a7: displaying the data of the performed injection conditions in the at least one display after the chemical injection.
Is programmed to.
D9. The computer unit is
a8: At least the plurality of selectable body division icons or the selectable plurality of imaging area icons are displayed so that the chemical injection to another target site can be repeated after the completion of the chemical injection once. Return to the
Is programmed to.
D10. The computer unit is
a9: When a plurality of injections of the chemical solution are performed, data of a plurality of injection conditions performed in the respective injections of the chemical solution are displayed in the at least one display,
Is programmed to.
D11. The computer unit is
It is programmed to display the data of the plurality of injection conditions side by side in the vertical direction or the horizontal direction.
D12. The computer unit is
a10: displaying data on the total amount of the infused drug solution in the at least one display,
Is programmed to.
D13. A drug solution injector for injecting a drug solution,
B1: an injection head having at least one piston drive mechanism,
B2: a console having a computer unit electrically connected to the piston drive to operate the piston drive and at least one display;
Equipped with
The computer unit of the console is
a1: display a plurality of selectable body division icons or selectable plurality of imaging area icons on the at least one display,
a2: When one of the plurality of body division icons or the imaging area icon is selected, the at least one display displays a plurality of selectable target site icons corresponding to the body division or the imaging area. ,
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: If the confirmation or correction is made by the user, the presented or modified injection condition is set as an injection protocol,
Is programmed to.
D14. The injection head has two piston drive mechanisms that can be operated independently of each other.
D15. The injection head has an information display section that displays predetermined information.
D16. further,
An injection head holding means for holding the injection head is provided, and the injection head holding means is slidably attached to a movable stand, a ceiling suspension type holding arm, or a part of an imaging device to hold the injection head. It is an injection head holding bar.

100 chemical 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 Syringe 210 Cylinder member 211b Conduit portion 214 Locking protrusion 220 Piston member 240 Protective case 241 Main body member 300 Imaging device 303 Computer unit (control circuit)
304 Imaging unit 305 Interpretation monitor 701 Human body images 701a to 701d Body classification icons 702a to 703b Imaging region icons 703a to 703c Blood vessel site icon 713 Pressure display window 713a Pressure display 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

During the display area 721, or it may be displayed letters "during injection" indicating that it is liquid injection.

Claims (1)

A drug solution injector for injecting a drug 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,
Equipped with
The computer unit is
a1: display a plurality of selectable body division icons or selectable plurality of imaging area icons on the at least one display,
a2: When one of the plurality of body division icons or the imaging area icon is selected, the plurality of selectable target part icons corresponding to the body division or the imaging area are displayed on the at least one display. ,
a3: when one of the target site icons is selected, the at least one display presents a medical fluid injection condition for contrast corresponding to the target site,
a4: When the confirmation or correction is made by the user, the proposed or modified injection condition is set as an injection protocol,
Liquid injection device programmed as follows.