JP6804977B2 - Chemical suction device, chemical injection system and fluoroscopic imaging system - Google Patents

Description

The present invention relates to a drug solution suction device that sucks a drug solution from a drug solution container to a syringe, a drug solution injection system that uses the drug solution sucked into the syringe by the drug solution suction device, and a fluoroscopic imaging system.

Medical diagnostic imaging devices include CT devices, MRI devices, PET devices, angio devices, MRA devices, ultrasonic diagnostic imaging devices, and the like. When a cross-sectional image of a subject is acquired using these devices, a chemical solution such as a contrast medium or physiological saline is often injected into the subject in order to enhance the contrast effect.

Usually, these chemicals are filled in a syringe and used. This type of syringe is roughly classified into a syringe that is pre-filled with a drug solution by a formulation manufacturer (also called a "prefilled type") and a syringe that is filled at a medical site (also called a "field-filling type").

In the case of the on-site filling type, if the chemical solution is manually sucked into the syringe, the suction amount will vary widely and it will be a burden on the operator, so a chemical solution suction device is often used. .. As such a drug solution suction device, Patent Document 1 describes the suction amount of the drug solution to the syringe based on the test conditions of the subject using the drug solution, and sucks the drug solution by the obtained suction amount. Disclosed is a chemical suction device configured so that the obtained suction amount data can be transmitted to an external device together with the unique identification number of the syringe. In this way, by linking with an external device, data can be shared with that device, and the obtained suction amount is equal to the injection amount to the subject. Therefore, if the external device is a drug solution injection device, the drug solution injection There is no need to determine the injection amount with the device. As a result, it is not necessary to input data individually in the chemical suction device and the chemical injection device, so that the burden on the operator can be significantly reduced.

Patent Document 1: International Publication No. 2008/004670

However, in the invention described in Patent Document 1, since the data to be input when obtaining the suction amount is input by the operator himself, if there is an input error at that time and an incorrect suction amount is obtained, The incorrect suction amount was passed on to other devices as it was, and as a result, there was a risk of medical error.

Therefore, an object of the present invention is to provide a chemical solution suction device, a chemical solution injection system, and a fluoroscopic imaging system that can prevent erroneous input of data when sucking a chemical solution from a chemical solution container to a syringe.

The chemical solution suction device of the present invention is a chemical solution suction device that sucks the chemical solution contained in the chemical solution container into a syringe provided with a cylinder and a piston.
A piston drive mechanism that moves the piston forward and backward with respect to the cylinder,
A reader or reader / writer for drug solution data that acquires the drug solution data from a drug solution data carrier provided in the drug solution container and in which the drug solution data related to the drug solution contained in the drug solution container is recorded.
A writer or reader / writer for suction data that records data in a syringe data carrier provided in the syringe.
The operation of the writer or reader / writer for the suction data is controlled so that the chemical solution data acquired from the chemical solution data carrier and the suction amount according to the operation of the piston drive mechanism are recorded in the syringe data carrier as the data. Suction control unit and
Have.

The chemical suction device of the present invention further includes a suction amount setting unit configured so that the user can set the suction amount of the chemical solution, and the suction control unit further includes a piston according to the suction amount set by the suction amount setting unit. It may control the operation of the drive mechanism. Further, it is possible to further have a communication module for transmitting and receiving data to and from an external device. In this case, it is preferable to obtain data on the suction amount through the communication module and set the obtained data as the suction amount.

The drug solution injection system of the present invention is a drug solution injection system that sucks a drug solution from a drug solution container into a syringe and injects the drug solution from the syringe.
The chemical solution container comprises a chemical solution data carrier in which chemical solution data regarding the contained chemical solution is recorded.
The syringe comprises a cylinder, a piston and a syringe data carrier.
A drug solution suction device that sucks the drug solution contained in the drug solution container into the syringe, and acquires the drug solution data from the suction piston drive mechanism that moves the piston forward and backward with respect to the cylinder and the drug solution data carrier. A chemical aspirator having a reader or reader / writer for chemical data and a writer or reader / writer for suction data that records data in the syringe data carrier.
A chemical injection device for injecting a chemical solution filled in the syringe, a piston drive mechanism for injection that moves the piston forward and backward with respect to the cylinder, and a reader for injection data that acquires data from the syringe data carrier. Or a chemical injection device with a reader / writer, and
The operation of the suction piston drive mechanism is controlled so that the chemical solution is sucked from the chemical solution container to the syringe by a predetermined suction amount, and the chemical solution data acquired from the chemical solution data carrier and the suction piston drive mechanism A suction control unit that controls the operation of the writer or reader / writer for suction data so that the suction amount according to the operation is recorded in the syringe data carrier as a part of the data.
An injection control unit that determines the injection conditions of the drug solution using the data acquired from the syringe data carrier and controls the operation of the injection piston drive mechanism according to the determined injection conditions.
Have.

In the above-mentioned chemical injection system of the present invention, it is preferable that the injection control unit is connected to another system through a network and is configured to transmit the data acquired from the syringe data carrier to the other system through the network. ..

The fluoroscopic imaging system of the present invention includes the above-mentioned chemical injection system of the present invention.
A fluoroscopic imaging device that executes an imaging operation of a tomographic image of a subject injected with the chemical solution,
Have.

In the fluoroscopic imaging system of the present invention, it is preferable that the chemical injection device and the fluoroscopic imaging device of the chemical injection system are connected to each other so that data can be transmitted and received between them.

According to the present invention, when the chemical solution contained in the chemical solution container is sucked into the syringe, it is possible to prevent erroneous input of data regarding the sucked chemical solution.

It is a perspective view which shows the appearance of the chemical liquid suction apparatus by one Embodiment of this invention. It is a block diagram which shows the flow of the electric signal of the chemical liquid suction apparatus shown in FIG. It is a perspective view of an example of a syringe which can be used in this invention. It is a front view of an example of the chemical liquid container which can be used in this invention. It is a plan view (a) and a front view (b) of the cylinder holder shown in FIG. It is a top view of the piston holder shown in FIG. FIG. 5 is a layout diagram of an example of a fluoroscopic imaging system in which a syringe in which a chemical solution is sucked can be used by the chemical solution suction device shown in FIG. It is a block diagram which shows the main function of the control system in the fluoroscopic imaging system shown in FIG. 7. FIG. 5 is a cross-sectional view showing the positional relationship between the RFID tag and the antenna of the RFID module in a state where the cylinder is normally held by the cylinder holding mechanism in the chemical injection device shown in FIG. It is a block diagram of the fluoroscopic imaging system according to one Embodiment of this invention.

With reference to FIGS. 1 and 2, a perspective view showing the appearance of the chemical solution suction device 30 according to the embodiment of the present invention and the flow of electric signals for sucking the chemical solution contained in the chemical solution container 20 into the syringe 10 are shown. The block diagrams shown are shown respectively. Hereinafter, the chemical solution suction device 30 of this embodiment will be described mainly with reference to FIGS. 1 and 2, and if necessary, with reference to other drawings.

The syringe 10 has a cylinder member 501 and a piston member 502 as shown in FIGS. 3A and 3B. A cylinder flange 501a is formed at the end of the cylinder member 501, and a piston flange is formed at the end of the piston member 502. An RFID tag 503 is attached to the outer peripheral surface of the cylinder member 501 as a syringe data carrier.

The cylinder flange 501a can have a contour shape in which opposing portions are cut in parallel, which is called an I-cut. Further, on the outer peripheral edge of the cylinder flange 501a, two notches 505 (showing only one) may be formed at positions opposite to each other in the circumferential direction. The conduit 501b at the tip of the cylinder member 501 may be for luer lock connection having two tubular portions, an inner cylinder and an outer cylinder arranged concentrically. A ring-shaped protrusion 501c and a plurality of ribs 501d extending outward from the ring-shaped protrusion 501c may be formed on the rear surface of the cylinder flange 501a. Both the notch 505 and the rib 501d need not be formed, and only one of them may be formed. Further, with respect to the ribs 501d, only the upper and lower ribs may be formed among the plurality of ribs 501d arranged in the vertical direction shown in the drawing. Such rib groups may be formed on only one of the left and right sides of the cylinder flange 501a.

The RFID tag 503 records in advance the syringe manufacturer, product number, lot number, allowable pressure value, capacity, piston stroke, required dimensions of each part, and the like as syringe data. The RFID tag 503 includes a unique ID area and a user memory area as data areas. The data recorded in the unique ID area is a code unique to each RFID tag 503 (also referred to as a unique ID) set by the chip maker of the RFID tag 503 at the time of factory shipment, and cannot be changed after the factory shipment. On the other hand, the user memory area is an area in which data is written by the user of the RFID tag 503, and the syringe data described above and data such as a chemical solution described later are written in this user memory area.

Note that FIG. 3 illustrates a syringe in which the piston member 502 has a rod portion on the terminal side and a piston flange is formed at the end of the rod portion. However, the form of the syringe is not limited to this, and in the present invention, a so-called rodless syringe having no rod portion can also be used. In a rodless syringe, the piston member is generally formed integrally with a substantially cylindrical portion that slides in the longitudinal direction of the cylinder member 501 while sealing the inner peripheral surface of the cylinder member 501 in a liquid-tight manner and its terminal surface. The structure has a protruding portion. The piston member can be moved by holding it with an appropriate chuck means that engages with the protrusion. The piston member is sometimes called a plunger.

As shown in FIG. 4, the chemical solution container 20 includes a container body 21, a fluid connector 22 connected to a syringe 10 (see FIG. 1) via a connecting tube 12 (see FIG. 1), and an outer surface of the container body 21. It has a bar code 23 as a drug solution data carrier arranged in. The container body 21 may be a rigid container such as a bottle or a flexible package such as a bag. The fluid connector 22 may be any connector as long as it has a structure that allows the container body 21 and the connecting tube 12 to be fluidly communicated with each other by being connected to the connecting tube 12, for example, with a spike needle. A rubber stopper that opens by piercing the connecting tube 12 or a cap with a valve having a valve that opens when the connecting tube 12 is connected can be used.

A chemical solution, which is a contrast medium, is preferably contained inside the container body 21. The chemical solution contained in the chemical solution container 21 is configured so that it can be taken out to the outside by connecting a connecting tube to the fluid connector 22. The chemical solution container 20 may be provided with a suspension band 24, if necessary, so that the container body 21 can be suspended with the fluid connector 22 facing downward.

The bar code 23 contains, as chemical solution data, which is data on the chemical solution contained, for example, the manufacturer of the chemical solution, the type of the chemical solution, the product number, the lot number, and the contained components (particularly, when the chemical solution is a contrast medium, the iodine content concentration). Etc.), expiration date, etc. are recorded. The data format may be, for example, a data format compliant with NDC (National Drag Code).

Referring to FIGS. 1 and 2, the chemical suction device 30 is movably provided with respect to the main body 31 configured as a housing, the cylinder holder 32 integrally provided in the main body 31, and the cylinder holder 32. It has a piston holder 33.

As an example, the cylinder holder 32 can have an arcuate recess 32a that receives the cylinder flange 501a (see FIG. 3) from the side, as shown in FIG. The cylinder member is held by placing the cylinder flange 501a in the recess 32a with the conduit 501b (see FIG. 3) facing upward. In this embodiment, the recess 32a is formed in a stepped shape so that cylinder flanges of a plurality of types of syringes (cylinder members) having different capacities (size, particularly diameter) can be placed, for example, for 100 ml and 200 ml. Has been done.

As an example, the piston holder 33 can have a drawer member 33a as shown in FIG. The piston pull-out member 33a can be a member whose tip is bifurcated so that the piston member 502 (see FIG. 3) can be received from the side, for example, a U-shaped member. The distance between the branched parts is smaller than the diameter of the piston flange. The drawer member 33a is arranged at a position facing the cylinder holder 32, and is provided so as to be reciprocally movable in a direction away from the cylinder holder 32 (downward direction) and an approaching direction (upward direction).

The piston holder 33 is not limited to the above-mentioned form, and may have an arbitrary structure suitable for the form of the syringe into which the chemical solution is sucked. For example, when the rodless syringe described above is used as the syringe, the piston holder 33 has an appropriate structure capable of retracting the piston member of the rodless syringe.

The suction of the chemical solution to the syringe 10 can be performed by holding the cylinder member 501 of the syringe 10 in which the piston member 502 is most pushed into the cylinder member 501 by the cylinder holder 32, and pulling out the piston 502 from the cylinder in this state. it can. Therefore, the piston holder 33 has the cylinder holder 32 and the piston when the initial position, which is the position of the pull-out member 33a before the chemical liquid suction device 30 starts the suction operation, is the state in which the cylinder member 501 is held by the cylinder holder 32. It is designed to be located between the flange and preferably in contact with the piston flange.

In addition to the cylinder holder 32 and the piston holder 33, the chemical suction device 30 includes a barcode reader 51, an RFID module 52, a piston drive mechanism 53, a detachable detection sensor 54, a suction amount setting unit 55, a display 56, and a communication module 57. It has a suction control unit 58 and a start / stop button 59.

The barcode reader 51 is a device for reading data by scanning the barcode 23 provided in the chemical solution container 20, and any reader for reading the barcode can be used. FIG. 1 shows a barcode reader 51 provided with a handy type scanner head and in which a user reads a barcode by holding the scanner head over a chemical solution container 20 suspended from a hanger 34, which is suspended from the hanger 34. A scanner head may be built in advance at a position facing the bar code of the lowered drug solution container 20, and the bar code may be automatically read when the drug solution container 20 is hung.

The RFID module 52 is a device that uses RFID technology to write or write / read data to an RFID tag 503 (see FIG. 3) attached to a syringe 10. That is, the RFID module 52 functions as an RFID writer or a reader / writer. Like the barcode reader 51, the RFID module 52 may be built in at a position where data can be read from the RFID tag 503 by mounting the syringe 10 in a fixed position, or the chemical liquid suction device 30 may be built in. It may be a handy type having a head portion that can be held up to a position where the user can read data from the RFID tag 503 before or after mounting the syringe 10 on the RFID tag 10.

The RFID module 52 has an RFID control circuit 52a and an antenna 52b connected to the RFID control circuit 52a. The antenna 52b is arranged at a position facing the RFID tag 503 when the cylinder member 501 is held by the cylinder holder 32. The RFID control circuit 52a controls the operation of writing data to the RFID tag 503 and the operation of reading data from the RFID tag 503 via the antenna 52b.

The piston drive mechanism 53 can have a motor driven by electric power and a linear motion mechanism that converts the rotation of the motor into linear motion. As the linear motion mechanism, any mechanism that converts rotary motion into linear motion, such as a lead screw mechanism, a belt mechanism, and a rack and pinion mechanism, can be used. The linear motion mechanism is connected to the piston holder 33, and the piston holder 33 can be operated by driving the motor. In this embodiment, the case where the piston drive mechanism 53 uses a motor as a drive source will be described. However, the piston drive mechanism 53 also includes a mechanism using a mainspring as a power source and a mechanism using the elastic force of a spring. It is also possible to use a drive source that does not use electric power.

The attachment / detachment detection sensor 54 is a sensor that detects that the cylinder 501 is held by the cylinder holder 32. As the attachment / detachment detection sensor 54, for example, a contact-type sensor having a switch that comes into contact with the outer surface of the cylinder 501 to turn on when the cylinder 501 is held, or an optical path is blocked by holding the cylinder 501. Any sensor can be used, such as an optical non-contact sensor with a light emitting element and a light receiving element arranged at the position where the light is generated. If the RFID module 52 is the built-in type described above and data can be automatically read from the RFID tag 503 by mounting the syringe 10 in a fixed position, the RFID by the RFID module 52 By reading the data from the tag 503, it can be determined that the syringe 10 has been attached in place. Therefore, in the present invention, the attachment / detachment detection sensor 54 is not an essential configuration.

The suction amount setting unit 55 sets the suction amount of the drug solution to the syringe 10. The suction amount of the chemical solution is proportional to the withdrawal amount of the piston member 502 from the cylinder member 501. Therefore, the suction amount of the chemical solution can be set by setting the withdrawal amount of the piston member 502. The configuration for setting the withdrawal amount of the piston member 502 may be arbitrary.

For example, a stopper provided with a limit switch that detects the position of the piston holder 33 by coming into contact with the piston holder 33 as the piston holder 33 moves is placed below the piston holder 33 in a direction parallel to the moving direction of the piston holder 32. It is possible to adopt a mechanical configuration that is movably supported. The limit switch may have an arbitrary configuration such as one provided with an optical sensor such as a photocoupler or a magnet type limit switch as long as the position of the piston holder 33 can be detected. According to this configuration, if the limit switch contacts the piston holder 33 and stops the operation of the piston drive mechanism 53 when it is turned on, the chemical solution is filled in a desired amount according to the position of the stopper. To. Therefore, this method can be said to be a movement amount limiting method.

Alternatively, the suction amount can be set numerically, and the rotation of the motor can be stopped when the rotation speed of the motor of the piston drive mechanism 53 reaches the rotation speed corresponding to the set suction amount (). Numerical setting method). When the suction amount is set numerically, the suction amount setting unit 55 can be provided with an input device such as an operation button for setting the suction amount. The set value can be displayed on the display 56.

The piston drive mechanism 53 can be arbitrarily operated and stopped by the user by operating the start / stop button 59, and the chemical solution can be sucked by an arbitrary amount. In this case, the suction amount setting unit 55 is unnecessary.

The display 56 can display at least a part of the data read from the bar code 23 of the chemical solution container 20. It is also possible to display the amount of the drug solution sucked into the syringe 10. The suction amount of the chemical solution may be a set value, an actual suction amount calculated from the rotation speed of the motor of the piston drive mechanism 53 or the movement amount of the piston holder 33, or both of them. You may.

The communication module 57 transmits the data acquired by the barcode reader 51 to another external device (including not only an independent device but also the system or the devices constituting the system), or transmits data from the other device. It is a module for receiving. The communication method may be wireless communication or wired communication.

The suction control unit 58 controls the operation of the piston drive mechanism 53 according to the suction amount set by the suction amount setting unit 55, controls the data reading operation of the barcode reader 51, and performs the data writing operation by the RFID module 52. It controls the operation of each component included in the chemical solution suction device 30, such as controlling.

The suction control unit 58 can be configured as a so-called microcomputer and can have an interface with a CPU, ROM, RAM, and other devices. A computer program for controlling the chemical suction device 30 is mounted on the ROM. The computer program can be configured to cause the system including the chemical solution suction device 30 to perform a process related to the operation of the chemical solution suction device 30, for example, a process performed by the suction control unit 58. The CPU controls the operation of each part of the chemical liquid suction device 30 by executing each function corresponding to this computer program. The RAM temporarily stores data acquired by the barcode reader 151, data acquired by the RFID module 52, suction amount (set value, calculated actual suction amount, or both).

Further, the suction control unit 58 has a clock function using a clock possessed by the CPU, and can include the current date and time (current time) in the data. It is recommended that the chemical solution, particularly the contrast medium, be used within a predetermined time after the chemical solution container 20 is transferred to the syringe 10, preferably after the chemical solution container 20 is opened (this time is referred to as “). Also called "recommended expiration date after suction"). Therefore, if the end date and time of suction of the chemical solution is included in one of the data to be written on the RFID tag 503, the data recorded on the RFID tag 503 can be sucked when the chemical solution is injected using a readable chemical solution injection device. The chemical injection device will be able to determine how much time has passed since the end date and time.

Regarding the acquisition of the current date and time, if the suction control unit 58 can communicate with the NTP server via the communication module 57, the current date and time can also be acquired from the NTP server. Alternatively, the chemical liquid suction device 30 may have a built-in radio-controlled clock, or may be connected to the radio-controlled clock so that the current date and time can be acquired from the radio-controlled clock. The recommended expiration date after inhalation may be the expiration date recommended by the formulation manufacturer, or the expiration date set at the medical site where this drug solution is used. Further, the recommended expiration date itself after suction may be recorded on the RFID tag 503.

The start / stop button 59 is a button that is operated when the suction operation by the chemical liquid suction device 30 is started or the suction operation is stopped when an abnormality occurs. The suction control unit 58 uses the operation of the start / stop button 59 as a trigger to operate and stop the piston drive mechanism 53.

Next, an example of the operation of the above-mentioned chemical liquid suction device 30 will be described.

First, the user causes the cylinder member 501 to hold the empty syringe 10 in a state where the chemical solution is not contained and the piston member 502 is most pushed into the cylinder member 501. At this time, since the piston holder 33 is located at the above-mentioned initial position, the piston member 502 is also held by the piston holder 33. As a result, the syringe 10 is set in the chemical suction device 30. Further, the user sets the chemical solution container 20 by suspending it on the hanger 34. Either of these may be done first. After completing the set of the syringe 10 and the drug solution container 20, the user connects the two with the connecting tube 12.

At this time, it is preferable that the chemical solution container 20 is heated by a dedicated warmer (not shown) so that the temperature of the chemical solution contained therein becomes a predetermined temperature suitable for injection. Alternatively, the chemical solution may be heated to a predetermined temperature by attaching the heater to the chemical solution container 20, or the heater is incorporated in the portion of the main body 31 of the chemical solution suction device 30 to which the syringe 10 is mounted, whereby the syringe 10 is incorporated. It is also possible to heat the chemical solution sucked into the inside to a predetermined temperature.

On the other hand, when the cylinder member 501 is held by the cylinder holder 32, the attachment / detachment detection sensor 54 detects the holding of the cylinder member 501, in other words, the attachment of the syringe 10 to the chemical suction device 30. When the attachment of the syringe 10 is detected, the suction control unit 58 sets the barcode reader 51 in a state in which data can be read. Therefore, when the user holds the scanner head over the barcode 23 of the chemical solution container 20, the barcode reader 51 reads the barcode 23 and the chemical solution data is acquired from the barcode 23.

After it is detected that the syringe 10 is attached to the chemical liquid suction device 30, the suction control unit 58 controls the operation of the piston drive mechanism 53, so that the piston member 502 is pushed most into the cylinder member 501. The piston member 502 may be reciprocated a plurality of times within a predetermined range including the most advanced position, which is the position where the piston member is located. As a result, it is possible to bleed the air in the connecting tube 12 and the syringe 10 into the chemical solution container 20. By bleeding the air from the syringe 10 with the chemical suction device 30, it is possible to eliminate the need for air bleeding when the chemical liquid is injected with the chemical liquid injection device described later.

The suction control unit 58 temporarily stores the acquired data in the RAM. At this time, the suction control unit 58 may display at least a part of the data stored in the RAM on the display 56. By displaying the data on the display 56, the user can collate the data displayed on the display 56 with the data displayed on the label of the chemical solution container 20 and confirm whether or not the data is correctly read. ..

Next, the user sets the suction amount of the chemical solution in the suction amount setting unit 55. After setting the suction amount, the user subsequently operates the start / stop button 59. When the chemical solution is configured to be sucked into a plurality of types of syringes having different capacities (sizes), the capacity of the syringes may be further set. For setting the volume of the syringe, for example, the drug solution suction device 30 may further include a selection button for selecting the volume of the syringe.

When the start / stop button 59 is operated, the suction control unit 58 operates the piston drive mechanism 53 so that the piston holder 33 moves downward according to the setting in the suction amount setting unit 55. For example, when the suction amount setting unit 55 is based on the numerical value setting method described above, the suction control unit 58 stops the motor of the piston drive mechanism 53 by rotating by the number of rotations corresponding to the set numerical value. As described above, the operation of the piston drive mechanism 53 is controlled. Alternatively, when the suction amount setting unit 55 is the movement amount limiting method described above, the suction control unit 58 rotates the motor until the limit switch is turned on.

By moving the piston holder 33 downward by the piston drive mechanism 53 in this way, the piston member 502 is pulled out from the cylinder member 501, whereby the chemical solution in the chemical solution container 20 is set in the syringe 10 and predetermined. Is sucked in the amount of. If an abnormality occurs during the suction operation, the user can stop the suction operation by operating the start / stop button 59.

After the operation of the piston drive mechanism 53 is completed, the suction control unit 58 calculates the suction amount of the chemical solution from the movement amount of the piston holder 33, that is, the rotation speed of the motor of the piston drive mechanism 53. The calculated suction amount is temporarily stored in the RAM as data. Next, the suction control unit 58 transmits the data temporarily stored in the RAM, that is, the above-mentioned chemical solution data and the suction amount data to the RFID module 52, and performs the operation of writing the data to the RFID tag 503 by the RFID module 152. Let me do it. As a result, the chemical solution data and the suction amount data sucked into the syringe 10 are added to the RFID tag 503. The suction amount data means the amount of the chemical solution filled in the syringe 10. At this time, it is preferable that the data to be added to the RFID tag 503 further includes the data of the date and time when the suction of the chemical solution is completed.

When the recording of the data on the RFID tag 503 is completed, the suction control unit 58 causes the display 56 to display the suction amount as the recorded data on the RFID tag 503. By displaying the suction amount, the user can confirm that the suction of the drug solution has been completed and whether the suction has been performed according to the setting.

After displaying the suction amount, the user can remove the syringe 10 from the drug solution suction device 30. At this time, when the cylinder member 501 is removed from the cylinder holder 32, it is detected by the attachment / detachment detection sensor 54. When the removal of the cylinder member 501 is detected, the suction control unit 58 raises the piston holder 33 to the initial position by operating the piston drive mechanism 53.

Further, after the suction is completed, the drug solution data read by the barcode reader 51 and the drug solution suction amount data can be transmitted to an external device such as a medical information system such as RIS, PACS, or HIS through the communication module 57.

As described above, the chemical suction device 30 of the present embodiment includes the RFID module 52 capable of writing data to the RFID tag 503 provided in the syringe 10, so that the data related to the sucked chemical liquid can be stored in the RFID tag 503. Can be easily recorded on. Moreover, since the chemical solution suction device 30 further has a means for reading the barcode 23 on which the chemical solution data is recorded, which is provided in the chemical solution container 20, the data of the chemical solution itself is recorded in the barcode 23. The data can be used as it is. As for the suction amount, the RFID tag 503 can record the suction amount based on the actual operation according to the suction amount set by the user in the chemical liquid suction device 30. Therefore, the user only needs to set the suction amount in the chemical suction device 30, and all the data is automatically recorded in the RFID tag 503, and as a result, the user prevents the user from making a mistake in inputting the data to the RFID tag 503. be able to.

Further, since the chemical solution suction device 30 can send and receive data to and from other devices through the communication module 57, for example, when a subject who uses the chemical solution is specified, the specific subject ID and the like can be used as medical information. It can also be transmitted to the system and the amount of the drug solution used can be obtained as data on the amount of suction from the past history or the like. As long as there is no significant change in the physical condition of the subject between the past examination and the present examination, the amount of the drug solution used in the present examination for the subject may be the same as the amount used in the past. Therefore, the suction control unit 58 sets the obtained usage amount as the suction amount, so that it is not necessary to set the suction amount in the chemical liquid suction device 30.

In the above-described form, the case where the data carrier provided in the chemical solution container 20 is the barcode 23 is shown, but an RFID tag capable of adding or rewriting data can also be used. In this case, the current internal volume (remaining amount) obtained by subtracting the suction amount from the content before suction contained in the chemical solution container 20 can be written on the RFID tag. The calculation of the remaining amount can be performed by the suction control unit 58 of the chemical liquid suction device 30.

When the drug solution sucked by the drug solution suction device 30 described above is a contrast medium, the contrast medium can be used for diagnostic imaging. Here, an example of a fluoroscopic imaging system in which a contrast medium is injected into a subject to capture a fluoroscopic image of the subject will be described.

With reference to FIG. 7, an example of a fluoroscopic imaging system having a fluoroscopic imaging device 200 and a chemical injection device 100 is shown. The fluoroscopic imaging device 200 and the chemical injection device 100 can be connected to each other so that data can be transmitted and received between them. The connection between the fluoroscopic imaging device 200 and the chemical solution injection device 100 may be a wired connection or a wireless connection.

The fluoroscopic imaging device 200 has a scanner 201 that executes an imaging operation and an imaging control unit (not shown) that controls the operation of the scanner 201, and a tomographic image of a subject in which the chemical solution is injected by the chemical solution injection device 100. Can be obtained. The imaging control unit can include a display device such as a liquid crystal display capable of displaying imaging conditions and acquired tomographic images, and an input device such as a keyboard and / or a mouse for inputting imaging conditions and the like. The display device may have a touch screen that also serves as an input device.

The chemical injection device 100 includes, for example, an injection head 110 rotatably attached to the upper part of the stand 121 via a swivel arm 122 in the vertical direction, and various functions for controlling the operation of the entire chemical injection device 100. It also has a console 101. The injection head 110 and the console 101 can be configured in one housing, but in this embodiment, the injection head 110 and the console 101 are configured as separate units. In this case, the injection head 110 can be arranged in the examination room together with the scanner 201, and the console 101 can be arranged in the operation room together with the imaging control unit of the fluoroscopic imaging device 200. The stand 121 can be a stand with casters to facilitate the movement of the injection head 110.

The console 101 has a built-in AC / DC converter, and the power converted from alternating current to direct current is supplied to the console 101. The console 101 includes a group of buttons including a stop button for forcibly stopping injection, a home button for displaying a home screen, and a power button for power on / off, and a touch panel that also serves as an input device and a display device. Have.

Two syringes can be detachably attached to the injection head 110. The syringe may be, for example, one for a contrast medium and the other for a saline solution. The syringe may be, for example, a syringe filled with a contrast medium and / or physiological saline by the drug solution suction device 30 shown in FIG. 1, and the specific configuration of the syringe is as described with reference to FIG. It may be there. Therefore, a system including the chemical suction device 30 and the chemical injection device 100 can be called a chemical injection system, and a system including the fluoroscopic imaging device 200 can also be called a fluoroscopic imaging system. Further, in the following description, the reference numerals shown in FIGS. 1 and 3 are used for the syringe and its constituent members.

The injection head 110 is for operating (for example, pushing into the cylinder) a cylinder holding mechanism that holds the cylinder member 501 of the syringe 10 and a piston member 502 of the syringe 10 that holds the cylinder member 501 in the cylinder holding mechanism. , Two pressers that are moved in the axial direction of the syringe 10.

The injection head 110 can also be configured to mount a plurality of types of syringes 10 having different capacities. In that case, an adapter corresponding to the capacity of the syringe 10 is prepared, and the syringe can be mounted via the adapter.

The presser is fixed to the tip of a rod that is moved back and forth by an appropriate rotational motion conversion mechanism such as a lead screw mechanism or a rack and pinion mechanism that converts the rotational motion of the motor into a linear motion. A mechanism having these motors, a rotational motion conversion mechanism, a rod, and a presser for moving the piston forward and backward is called a piston drive mechanism. In this embodiment, the injection head 110 includes two piston drive mechanisms.

As the motor serving as the drive source of the piston drive mechanism, a DC motor can be used, and among them, a DC brushless motor can be particularly preferably used. Since the brushless motor does not have a brush, it is excellent in quietness and durability. In addition, since the brushless motor can rotate at a higher speed, if the external gear ratio is increased to reduce the torque applied to the motor, the current required to inject the chemical solution at the desired injection pressure can be compared with that of the brush motor. Can be made smaller.

The injection head 110 is entirely covered with a synthetic resin housing except for a part of the piston drive mechanism (for example, a presser). Several operation buttons are arranged on the upper surface of the housing so that the piston drive mechanism can be operated by the user's operation.

The syringe 10 may be a prefilled type syringe provided by the formulation manufacturer in a state of being filled with the drug solution, or may be a site-filled type syringe filled with the drug solution at the medical site.

In the above-described configuration, the scanner 201 and the injection head 110 are installed in the examination room, and the imaging control unit of the fluoroscopic imaging device 200 and the console 101 of the drug solution injection device 100 are in the examination room when injecting the chemical solution into the subject and capturing an image. Is installed in the operation room separated by a wall. Therefore, when transmitting and receiving signals and data between the console 101 and the injection head 110 by wired communication using a cable, a cable passage is formed on the wall separating the examination room and the operation room, and the cable passes through this passage. Be routed. Signals and data can also be transmitted and received between the console 101 and the injection head 110 by wireless communication, in which case there is no need to form a cable passage in the wall. For wireless communication, for example, the console 101 and the injection head 110 can each be equipped with a wireless communication unit (not shown).

Hereinafter, the flow of signals, data, and the like in the fluoroscopic imaging system described above will be described with reference to the block diagram shown in FIG. Note that FIG. 8 shows only the main functions of the control system in the fluoroscopic imaging system of the present embodiment, and the present invention is not limited thereto.

The image pickup control unit 152 can be incorporated into the image pickup control unit of the fluoroscopic image pickup device 200, for example, and is configured to generally control the operation of the fluoroscopic image pickup device 200 such as the scanner 201 and the display device of the image pickup control unit. .. The image pickup control unit 152 can be configured as a so-called microcomputer, and can have an interface with a CPU, ROM, RAM, and other devices. A computer program for controlling the fluoroscopic imaging apparatus 200 is mounted on the ROM. The CPU controls the operation of each part of the fluoroscopic imaging apparatus 200 by executing various functions corresponding to this computer program. Further, the imaging control unit 152 can receive data and signals from the injection control unit 150, and uses the data and signals received from the injection control unit 150 to control the operation of each unit of the fluoroscopic imaging device 200. You can also.

The injection control unit 150 can be incorporated into, for example, the console 101, and is configured to generally control the operations of the console 101 and the injection head 110. More specifically, the injection control unit 150 controls the screen and data to be displayed on the display unit 154 in response to the input of data and information from the input unit 156 and the input of data and information from the RFID module 166. Alternatively, it is possible to create injection conditions for a chemical solution based on the data and information input from the input unit 156 and the data and information input from the input unit 156, and to control the operation of the piston drive mechanism 140. ..

Further, the injection control unit 150 enables data to be transmitted / received to / from another external device (including not only an independent device but also a system or a device constituting the system) via the communication module 158. It can also be configured.

The injection control unit 150 can be configured as a so-called microcomputer and can have an interface with a CPU, ROM, RAM, and other devices. A computer program for controlling the chemical injection device 100 is mounted on the ROM. The CPU controls the operation of each part of the chemical solution injection device 100 by executing various functions corresponding to this computer program. Further, the injection control unit 150 has a time counting function using a clock possessed by the CPU, and can count, for example, the current date and time and the elapsed time from the start of injection. The injection control unit 150 can also receive data and signals from the imaging control unit 152, and the data and signals received from the imaging control unit 152 can also be used to control the operation of each unit of the injection imaging device 100. it can.

The display unit 154 can be the touch panel of the console 101. The input unit 156 can include not only the touch panel but also the button group of the console 101 and the button group of the injection head 110. The touch panel is usually a modularized version of a display that functions as a display unit 154, a touch screen that functions as an input unit, and control circuits thereof.

As the display unit 154, any display including a liquid crystal display, an organic EL display, and the like can be used. As the touch screen, any touch screen such as a capacitance type and a pressure sensitive type can be used. The control circuit of the touch panel displays a predetermined screen and data on the display based on the signal transmitted from the injection control unit 150, and is based on the signal generated from the touch screen when the user or the like touches the touch screen. The input information is transmitted to the injection control unit 150.

The system of this embodiment can have a plurality of display units 154 for injecting a drug solution. In this case, for example, an additional display unit 154 can be placed in the laboratory where the injection head 110 is installed. The additional display unit 154 may be integrated with the injection head 110, may be attached to a stand or arm that supports the injection head 110, or may be installed independently of the injection head 110. Good. As the additional display unit 154, any display including a liquid crystal display, an organic EL display, and the like can be used as described above. The additional display unit 154 can display, for example, an injection condition setting screen and an injection graph. Further, an additional input unit 156 can be provided so that the injection conditions such as the injection speed and the injection time can be changed on the injection condition setting screen. The additional input unit 156 can also be a group of buttons or a touch screen, as described above.

The RFID module 166 has an RFID control circuit 164 and an antenna 165, and if it has at least a function as a reader for reading data recorded on the RFID tag, it is substantially the above-mentioned chemical suction device. It can be configured in the same manner as the RFID module of 30. At least a part of the data read by the RFID module 166 can be transmitted to the fluoroscopic imaging apparatus 200.

Although the RFID control circuit 164 can be installed at any position, it is desirable that the antenna 165 be installed at a position facing the RFID tag while the syringe is normally held by the cylinder holding mechanism.

The antenna 165 of the RFID module 166 has an FPC (flexible printed circuit board) in which a predetermined pattern (for example, one or more loop-shaped patterns) composed of conductors is formed, and as shown in FIG. 9, the cylinder holding mechanism has an FPC. The normally held cylinder member 501 is arranged at a position facing the RFID tag 503, bent in an arc shape so as to be concentric with the cylinder member 501. As a result, the detection range of the RFID tag 503 attached on the curved surface is expanded.

Further, in the present embodiment, the antenna 165 has a larger area than the RFID tag 503 so that the RFID tag 503 can surely face the antenna 165 even if the attachment position of the RFID tag 503 varies. ing. Therefore, it is preferable that the size of the antenna 165 is designed in consideration of the variation in the attachment position of the RFID tag 503 to the cylinder member 501.

On the other hand, by bending the antenna 165 into an arc shape, the smaller the radius of curvature of the antenna 165 and the longer the length of the antenna 165 in the circumferential direction, the more easily the radio waves for communication interfere with each other, and the lower the communication sensitivity. Tend to do. Therefore, in order to suppress radio wave interference, the antenna 165 preferably has a ferrite sheet 165a on a surface opposite to the surface of the FPC facing the RFID tag 503.

The output of the RFID module 166 can be, for example, 200 mW. With such a weak output, data can be satisfactorily read from the RFID tag 503 with the syringe 500 mounted at the normal position where the RFID tag 503 faces the antenna 165, and the syringe 500 is normal. It can be prevented from being read if it is not mounted in the position. As a result, if the data is not read from the RFID tag 503, the user can be warned that the syringe 500 may not be normally attached.

Further, by making the RFID module 166 have a higher output, the detection range (detection distance) of the RFID tag 503 is widened, and information can be read from the RFID tag 503 through the chemical solution filled in the syringe 10. , It is also possible to write information on the RFID tag 503. This means that even when the syringe 10 faces the antenna 165 via a chemical solution, for example, when the syringe 10 is rotated 180 degrees from the state shown in FIG. 9, the RFID module 166 communicates with the RFID tag 503. It means that it is possible to read out.

The detailed configuration of the RFID module 166 described above is the same for the RFID module of the chemical suction device.

Next, the operation of the fluoroscopic imaging system described above will be described in more detail, focusing on the operation of the chemical injection device 100.

When the syringe 10 filled with the chemical solution is attached to the injection head 110 in a predetermined procedure, various data including data related to the syringe 10 and the chemical solution recorded on the RFID tag 503 by the RFID module 166 are read out.

Based on the data read from the RFID tag 503, the injection control unit 150 displays the type and filling amount of the chemical solution filled in the syringe 10 on the display unit 154 as necessary, or moves the presser to the standby position. Let me do it. The standby position is an arbitrary position between the position where the presser abuts on the end of the piston of the syringe 10 and the position at the end. To move to the standby position, the injection control unit 150 obtains the end position of the piston based on the data read from the RFID tag 503, and determines the distance from the initial position, which is the end position of the movable range of the presser, to the end position of the piston. This can be done by operating the piston drive mechanism 140 so that the presser advances by the distance and an arbitrary offset value determined in advance.

Further, the injection control unit 150 creates injection conditions with parameters such as injection speed, injection amount and injection time, based on the data acquired from the RFID tag 503 and the data input from the touch panel of the console 101. The created injection conditions can be displayed on the touch panel in the form of graphic or numerical data. The user can arbitrarily change the displayed injection conditions. When the user presses the check button provided on the injection head 110, the injection preparation is completed.

Here, when the RFID tag 503 records the end date and time of suction of the drug solution into the syringe 10 as one of the data, the injection control unit 150 compares the end date and time of suction with the current date and time, and which one from the end of suction. It is possible to determine whether the time has elapsed and display the elapsed time from the obtained suction on the display unit 154. The user can determine whether or not the chemical solution filled in the syringe 10 is suitable for use by looking at the displayed elapsed time from suction. Alternatively, the current date and time and the suction date and time are compared by the injection control unit 150, and as a result, if the current date and time has passed a predetermined period from the suction date and time, that is, the recommended expiration date after suction has been exceeded. The injection control unit 150 can be configured to perform a process for preventing the injection of the chemical solution. The processing for preventing the injection of the chemical solution is, for example, disabling the operation of the piston drive mechanism 140, causing the display unit 154 to display that the expiration date of the chemical solution has expired, and sounding a buzzer or the like. For example, issuing a sound or voice warning from a unit (not shown). The recommended expiration date after inhalation of the chemical solution is preset in the injection control unit 150, but the set expiration date can be arbitrarily changed by the user. By controlling the suction date and time of the drug solution in this way, the safety of the injected contrast medium can be ensured.

When the recommended expiration date after suction is recorded on the RFID tag 503 and the data read from the RFID tag 503 is the recommended expiration date after suction of the drug solution, the injection control unit 150 sets the read recommended expiration date after suction and the current date and time. By comparison, if the current date and time has passed the recommended expiration date after suction, the above-mentioned treatment for preventing injection can be performed.

Here, if the injection control unit 150 can communicate with the NTP server via the communication module 158, the injection control unit 150 can acquire the current date and time from the NTP server. Alternatively, the current date and time can be obtained from the radio-controlled clock by the chemical solution injection device 100 having a built-in radio-controlled clock or being connected to the radio-controlled clock.

When the user operates the start button provided on the injection head 110 in the state where the injection preparation is completed, a signal corresponding to the operation is sent to the injection control unit 150, and the injection control unit 150 is created by using this signal as a trigger. The operation of the piston drive mechanism 140 is controlled so that the piston drive mechanism 140 operates according to the injection conditions. As a result, the drug solution filled in the syringe 10 can be injected into the subject.

The infusion condition indicates what kind of drug solution is infused, in what amount, and at what speed. The injection rate may be constant or this may change over time. In addition, when injecting a plurality of types of chemical solutions, for example, a contrast medium and a physiological saline solution, information such as the order in which the chemical solutions are injected is also included in the injection conditions. As the injection conditions, any known injection conditions can be used. Further, the procedure for creating the injection condition may be any known procedure.

When a contrast medium is injected as a drug solution, the contrast effect of the contrast medium varies from subject to individual. In order to grasp the degree of individual difference in the contrast effect, in the injection of the chemical solution, in order to know the arrival time of the contrast agent to the imaging site prior to the injection for imaging the tomographic image by the fluoroscopic imaging device 200, A test injection is performed in which the drug solution is injected with an injection amount smaller than the injection amount for imaging, and the imaging timing is determined based on the result.

In such a case, the injection operation of the chemical solution after the test injection can be started by the injection control unit 150 receiving the command transmitted from the fluoroscopic imaging device 200 from the imaging control unit 152. The fluoroscopic imaging device 200, for example, captures a tomographic image displayed on the monitor of the fluoroscopic imaging device 200 with a CCD camera (not shown), monitors the brightness (whiteness) of the tomographic image in ROI, and determines the brightness. To start the injection operation when the signal strength from the cable connected to the monitor is measured and the measurement result is equal to or higher than the predetermined threshold value. Command can be transmitted to the injection control unit 150. In addition, when a test injection is performed prior to the injection for imaging a tomographic image (main injection), the CT value and TDC (Time) at the time of the test injection
The Density Curve) may be monitored, the injection conditions may be determined according to the result, and the optimum imaging start suitable for the injection conditions may be transmitted from the chemical injection device 100 to the fluoroscopic imaging device 200.

Here, during the chemical injection operation, the injection control unit 150 calculates the moving speed and / or moving distance of the linear motion unit from the rotation speed and the rotation speed of the motor of the piston drive mechanism 140. The injection control unit 150 controls the operation of the piston drive mechanism 140 so that the calculated moving speed and / or moving distance becomes a predetermined moving speed and / or moving distance according to the created injection conditions.

In the above-described embodiment, the injection head 110 capable of mounting two syringes 10 at the same time has been described as an example, but the number of syringes 10 that can be mounted at the same time may be only one or three or more. There may be. However, to enable the simultaneous attachment of a plurality of syringes 10, for example, a syringe filled with a contrast medium and a syringe filled with a physiological saline solution are attached to the injection head 110, and the physiological saline solution is injected after the contrast medium is injected. It is preferable because various injection procedures can be realized, such as injecting water and boosting the contrast medium with physiological saline, or diluting the contrast medium with physiological saline to a desired concentration and injecting.

Further, in the present embodiment, the case of detecting the movement of the linear motion unit in the injection head 110 supported so that the posture can be changed has been described as an example, but the present invention has been described as an example, but the present invention is a stationary type such as a syringe pump. It can also be applied to devices.

In the above-described embodiment, the image pickup control unit 152 is incorporated in the image pickup control unit, and the injection control unit 150 is incorporated in the console 101 of the drug solution injection device 100. However, both the image pickup control unit 152 and the injection control unit 150 may be incorporated in the image pickup control unit, the image pickup control unit 152 and the injection control unit 150 may both be incorporated in the console 101, or the image pickup may be performed. Both the control unit 152 and the injection control unit 150 may be incorporated in a programmable computer device (not shown). By doing so, the console 101 of the chemical injection device 100 or the console of the fluoroscopic imaging device 200 becomes unnecessary, and the entire system can be simplified.

Furthermore, a particular function of the injection control unit 150 can be incorporated into a unit separate from the rest of the other functions. For example, the injection condition determination (calculation) function can be incorporated into the imaging control unit of the fluoroscopic imaging device 200, and the remaining other functions can be incorporated into the console 101 of the chemical solution injection device 100. In this case, it is not necessary to input the data common to the setting of the imaging condition and the setting of the injection condition to the fluoroscopic imaging device 200 and the chemical solution injection device 100 in duplicate. Data that is insufficient when setting the injection conditions may be input from the imaging control unit, or may be transmitted from the console 101 of the chemical injection device 100 to the imaging control unit.

The function of the image pickup control unit 152 and the function of the injection control unit 150 can be realized by using various hardware if necessary, but the main body thereof is realized by the function of the CPU corresponding to the computer program. The computer program can be configured to at least cause the system including the drug solution injection device 100 to perform a process related to the operation of the drug solution injection device 100, for example, a process performed by the injection control unit 150. When the system further includes the fluoroscopic imaging apparatus 200, the processing executed by the computer program in the system can further include processing related to the operation of the fluoroscopic imaging apparatus 200, for example, processing performed by the imaging control unit 152. Further, the computer program can be combined with the computer program for the drug solution suction device 30 described above.

As described above, in the above-described embodiment, data is transferred from the drug solution suction device 30 to the drug solution injection device 100 via the RFID tag 503 attached to the syringe 500. Therefore, in this embodiment, the accuracy of the passed data is important. Therefore, for example, in the drug solution suction device 30, the suction control unit 58 uses at least a part of the drug solution data and the suction amount data before writing the drug solution data and the suction amount data to the RFID tag 503 of the syringe 500 by the RFID module 52. It is also possible to calculate at least one checksum according to a predetermined procedure and write the calculated checksum to a predetermined block in the memory area of the RFID tag 503.

By writing the check sum to the RFID tag 503 in this way, when the data is read from the RFID tag 503 in the chemical injection device 100, is the data error, specifically, whether the data is correctly recorded on the RFID tag 503? Whether or not, or whether or not the data recorded on the RFID tag 503 is correctly read can be detected. More specifically, the injection control unit 150 of the chemical injection device 100 reads out the data recorded on the RFID tag 503 by the RFID module 166, and uses the read data on the RFID tag 503 according to a predetermined procedure. Calculate the checksum of the read data using the same formula that calculated the recorded checksum. Then, the injection control unit 150 compares the checksum recorded on the RFID tag 503 with the calculated checksum, and if both checksums do not match as a result of the comparison, the data is correctly recorded on the RFID tag 503. It is determined that the data has not been read or the data recorded on the RFID tag 503 has not been read correctly, that is, an error has occurred.

The data used for calculating the checksum is the chemical solution data acquired by the barcode reader 51 from the barcode 23 of the chemical solution container 20 when the RFID module 52 of the chemical solution suction device 30 functions as a writer. On the other hand, when the RFID module 52 of the chemical suction device 30 functions as a reader / writer, in addition to the above chemical liquid data, the syringe data recorded in advance on the RFID tag 503 and / or the uniqueness of the RFID tag 503. A code (unique ID) unique to each RFID tag 503 recorded in the ID area can be included.

For the calculation of the checksum, a general formula used for calculating this type of checksum can be used. Further, for example, a more complicated calculation formula in which all the data of the drug solution data and the syringe data are used as the data used for calculating the checksum, the same data is used multiple times, and multiplication and / or division are combined. By using the above, it is possible to improve the accuracy of detecting data errors and to identify erroneous data.

The number of checksums recorded on the RFID tag 503 may be plural. In this case, each checksum is recorded in a different block of data area of RFID tag 503. When using a plurality of checksums, for example, the first checksum is the checksum of the drug solution data, the second checksum is the checksum of the syringe data, and the combination of constituent data is changed for each checksum. , The formula itself can be changed for each checksum, or these can be combined.

When the injection control unit 150 of the chemical solution injection device 100 determines the occurrence of an error in the error detection of the data recorded on the RFID tag 503, the injection control unit 150 is selected from, for example, the processes listed below. One or more processes can be executed.

(1) The display unit 154 displays a message, a symbol, and / or an appropriate graphic or the like indicating that a data reading error has occurred, and notifies the user. If the data in which the error occurred can be identified, it may be notified so that it can be known which data has the error).

(2) When the data in which the read error has occurred can be identified, the data acquired from the RFID tag 503 is not automatically set in the chemical solution injection device 100 for the data. For example, when the injection control unit 150 determines an error in reading the allowable pressure value data of the syringe 500, the injection control unit 150 does not adopt the data read from the RFID tag 503 for the allowable pressure value, and the input unit by the user. It listens for the input from 156 and sets the value input from the input unit 156 as the allowable pressure value. When the permissible pressure value is set and the injection operation is started by a predetermined operation, the injection control unit 150 controls the operation of the piston drive mechanism 140 so as not to exceed the set permissible pressure value.

(3) If the data in which the read error has occurred can be identified and the drug solution can be injected without any problem even if the value of the data is changed, a predetermined provisional data is set. The "temporary data" is data used in place of the data determined to be an error when the data is read from the RFID tag 503, and is registered in advance in the memory area of the injection control unit 150 or an external storage device. Can be kept. As the value of this "temporary data", a value that can be adapted to all the injection conditions assumed by the chemical solution injection device 100 can be used.

For example, when "temporary data" of the allowable pressure value of the syringe 500 is registered, when the injection control unit 150 determines an error of reading the allowable pressure value data, the injection control unit 150 determines the registered allowable pressure value data. The "temporary data" of the pressure value is read out, and the injection protocol is set using the read "temporary data". As the "temporary data" of the permissible pressure value, the lowest permissible pressure value among all types of syringes 500 that can be used in the chemical injection device 100 can be used. This allows the injection operation to be performed without damaging the syringe 500, no matter what syringe 500 is used.

(4) When the injection control unit 150 is configured to transmit the data read from the RFID tag 503 to another device such as a server, the injection control unit 150 sends the data to another device when a read error occurs. Do not send. Further, when the data in which the read error has occurred can be identified, it is also possible to prevent the data in which the read error has occurred from being transmitted to another device.

(5) When the data in which the read error has occurred can be identified, the data in which the error has occurred is ignored, and the display unit 154 is not displayed to the effect that the read error has occurred. When the data in which the read error has occurred is the data required for setting the injection protocol, the injection control unit 150 causes the injection control unit 150 to accept an input operation from the user for the data in which the read error has occurred, for example, on the injection condition setting screen. The injection protocol can be configured using the data entered by the user.

(6) The operation of the chemical injection device 100 after it is determined that a read error has occurred is stopped, and neither the data input operation nor the operation of the operation button for the operation of the piston drive mechanism is accepted by the user. ..

On the other hand, regarding the structural point, in the above-described form, the injection head 110 and the console 101 are shown as separate bodies, but these can also be integrally configured. When the console 101 and the injection head 110 are integrally configured, the console 101 is also arranged in the examination room. Therefore, the remote controller 102 (see FIG. 7) can be used to start and stop the injection operation. Further, when the injection head 110 and the console 101 are integrally configured, the unit in which they are integrated may be equipped with a battery and may be driven by the battery.

The drug solution injection device may further have a load cell for detecting the injection pressure. The load cell can be provided, for example, in a presser. When having a plurality of pressers, at least one of them may have a load cell. The injection pressure can also be detected by measuring the motor current. As the load acting on the presser increases, the motor current, which is the drive source of the piston drive mechanism 140, increases according to the magnitude of the load. This is used to detect the injection pressure using the motor current. The injection pressure may be detected by either one of the detection using the load cell and the detection using the motor current, or both may be used in combination. When both are used in combination, the injection pressure is usually detected by the load cell, and the injection pressure can be measured by using the measurement result of the motor current only when the load cell fails.

The fluoroscopic imaging device may be any fluoroscopic imaging device such as a CT device, an MRI device, a PET device, an angio device, and an ultrasonic diagnostic imaging device as long as it can be used together with the chemical injection device 100. However, when the fluoroscopic imaging device is an MRI device, various devices such as the injection head 110 installed in the examination room where the MRI device is installed are not affected by the magnetic force generated by the MRI device. It is composed of a non-magnetic material.

As shown in FIG. 10, the fluoroscopic imaging system includes a chemical solution suction device 30, a chemical solution injection device 100, and a fluoroscopic imaging device 200, as well as a warmer 900 for heating the syringe 10 before use to a predetermined temperature and a used device. It may further include a waste box 910 that houses the syringe 10 to be discarded. The chemical suction device 30, the chemical injection device 100, the fluoroscopic imaging device 200, the warmer 900, and the disposal box 910 may be independent devices, or may be connected to at least one of them so as to be capable of data communication via a network. It may have been done. The warmer 900 and the disposal box 910 may also be independent of each other or may be connected to each other via a network so that data communication is possible. The warmer 900 and the disposal box 910 can be provided with readers / writers 902 and 912 for reading the data recorded on the RFID tag 503 and writing the data to the RFID tag 503, respectively. Information indicating that the syringe 10 has been heated by the reader / writer 902 to the RFID tag 503 of the syringe 10 by being heated by the warmer 900 is recorded in the syringe 10. Further, when the used syringe 10 is stored in the disposal box 910, the information to the effect that the used syringe 10 is the discarded syringe 10 is recorded on the RFID tag 503 by the reader / writer 912.

Here, the warmer 900 is configured to measure the current date and time, acquire date and time data from the reader / writer 902, and obtain the elapsed time from the comparison between the acquired date and time data and the measured current date and time. It may also have a processor 903 and a display 904 that displays the required elapsed time. As a result, the syringe housed in the warmer 900 can alert the user to how much time has passed since the drug solution was sucked.

Each medical device constituting the fluoroscopic imaging system, such as the chemical suction device 30, the chemical injection device 100, the fluoroscopic imaging device 200, the warmer 900, and the disposal box 910, is connected to the fluoroscopic imaging device and / or RIS, PACS through the medical network. , HIS and other medical information systems may be connected.

By doing so, the fluoroscopic imaging system can be efficiently used in an unprecedented usage pattern. For example, for one day's worth of drug solution injection at a medical facility where the medical information system is built, multiple test orders including data such as subject ID, drug solution type, drug solution injection amount, and scheduled test time are treated. It is transmitted from the information system to the chemical suction device 30. In the chemical solution suction device 30, the received inspection order is stored in the internal memory together with the order number for specifying the inspection order. The chemical solution suction device 30 performs a chemical solution suction operation so that an amount of the chemical solution according to the injection amount of each inspection order is sucked into the syringe in the order of the order number.

At this time, it is also possible to prepare a plurality of chemical liquid suction devices 30 and transmit each inspection order to the plurality of chemical liquid suction devices 30 in order so that each chemical liquid suction device 30 performs the chemical liquid suction operation. Alternatively, a chemical liquid suction device 30 provided with a plurality of piston drive mechanisms may be provided so that the chemical liquid can be sucked into a plurality of syringes at the same time.

Among the data recorded on the RFID tag 503, the data on the drug solution (or the subject) in both the case where the drug solution is sequentially sucked into each syringe and the case where the drug solution is injected into a plurality of syringes at the same time as described above. As the data), the data of the examination order transmitted from the medical information system can be used. In that case, the barcode 23 provided in the chemical solution container 20 is read out by the barcode reader 51 (see FIG. 1), and the read data is compared with the data transmitted from the medical information system, whereby the inside of the chemical solution container 20 is read. It is also possible to determine whether or not the chemical solution is as ordered. Further, the chemical solution can be sucked into each syringe 10 from separate chemical solution containers 20, or the chemical solution can be sucked from the common chemical solution container 20. When the chemical solution is sucked from the common chemical solution container 20, it is preferable to use a large-capacity chemical solution container 20 such as 500 ml to 2000 ml as the chemical solution container 20.

The syringe 10 into which the chemical solution is injected is stored in the warmer 900. The warmer 900 receives data on the examination status, for example, an order number for which the examination has been completed, an order number for which the examination is currently being performed, and the like from the medical information system. The processor 903 of the warmer 900 operates a reader / writer 902 to read data from the RFID tag 503 of the syringe 10. Since the data includes the order number and the inspection is usually performed in the order of the order number, the processor 903 compares the order number read from the RFID tag 503 with the data regarding the examination status received from the medical information system. The user can be notified of the syringes 10 that are used in the examination in the closest order. The notification to the user can be performed, for example, by displaying on the display 904. Alternatively, it can be performed by arranging a lamp in the vicinity of each syringe 10 and causing the lamp in the vicinity of the syringe 10 to be used for the inspection to emit light.

The syringe 10 that has come to the inspection turn is taken out from the warmer 900, attached to the drug solution injection device 100, and used for injecting the drug solution into the subject. The data recorded on the RFID tag 503 by the chemical suction device 30 is the data included in the inspection order transmitted from the medical information system. In addition to the drug solution data, the test order can include the subject's physical characteristics (eg, one or more of weight, height, gender, age, cardiac output), test site (imaging site), and Data about the fluoroscopic imaging device 200 to be used can be included, and these data can also be recorded on the RFID tag 503 by the chemical suction device 30. In this case, if the drug solution injection device 100 is connected to the medical information system and the test order can be received from the medical information system, when the syringe 10 is attached to the drug solution injection device 100, it is read from the RFID tag 503. Data errors can be detected by collating the collected data with the data received from the medical information system.

Further, when the drug solution injection device 100 can receive the test order from the medical information system, the drug solution suction device 30 does not record the data such as the physical characteristics of the subject included in the test order on the RFID tag 503. , The unique ID of the RFID tag 503 in which the drug solution data is written can be transmitted to the medical information system, and the unique ID can be associated with the examination order and recorded in the medical information system. In this case, when the RFID tag 503 is detected by attaching the syringe 10, the drug solution injection device 100 calls the inspection order associated with the unique ID of the detected RFID tag 503 from the medical information system and is used for setting the injection condition. It is also possible to receive various data (data including the physical characteristics of the subject, the examination site, etc.) from the medical information system. The drug solution injection device 100 that has received these data from the medical information system can calculate and set injection conditions such as an injection amount and an injection rate using the received data. Although the above processing is described as the processing of the chemical liquid suction device 30 and the chemical liquid injection device 100, it is the suction control unit 58 and the injection control unit 150 that actually perform the treatment.

Further, the suction amount (= injection amount) recorded on the RFID tag 503 is a value calculated based on the physical characteristics of the subject, the examination site, the fluoroscopic imaging device 200 to be used, and the like. If the inspection order also includes the injection rate of the drug solution, the data of this injection rate can also be recorded on the RFID tag 503 by the drug solution suction device 30. By doing so, when setting the injection conditions in the chemical injection device 100, the data recorded in the RFID tag 503 is used, and the injection conditions are set without requiring any data input by the operator. Can be done. Therefore, the operator simply performs an injection start operation for the chemical solution injection device 100 to start the chemical solution injection operation, for example, a check button provided on the injection head 110 or the console 101 (see FIG. 7). Injection can be performed. Therefore, the burden on the operator such as data input can be significantly reduced.

Further, by connecting each medical device to the medical information system as described above, it is possible to easily store and track the treatment history, drug solution usage history, syringe usage history, etc. for the subject.

For example, by transmitting the syringe ID recorded in the used syringe stored in the disposal box 910 from the disposal box 910 to the medical system, the number of discarded syringes can be grasped, so that the syringe inventory can be determined. Can be managed. In addition, data including data recorded on RFID tag 503 (data including manufacturer, product number, lot, and suction amount of the drug solution sucked into the syringe, and data injected into the server of the medical system) were injected into the server. By storing (including data about the subject), the amount of the chemical solution used can be grasped from the ID of the discarded syringe, so that the inventory of the chemical solution can be managed. Then, based on the inventory status of these syringes and / or chemicals, the medical system can automatically place an order with the distributor of the syringes and / or chemicals.

In addition, from the data stored in the above server, it is possible to associate the lot of the drug solution used in the past with the subject to whom the drug solution was injected. Therefore, for example, if a side effect occurs, the side effect will occur. It is also possible to track which subject the target drug solution was injected into.

Furthermore, the drug solution suction device stores the data read from the drug solution container and the data such as the suction amount to the syringe in the server of the medical information system instead of recording it in the data carrier provided in the syringe, and injects the drug solution. The device can also refer to the server in which the data is stored to read the data. By doing so, if the identification number unique to the syringe is recorded in the data carrier provided in the syringe, the identification number is read by the reader, and the syringe is referred to by referring to the server for the read identification number. (For example, the type of the sucked drug solution, the suction amount of the drug solution, the suction date and time, the injection amount, the injection date and time, etc.) can be grasped without recording the data in the data carrier. Therefore, as the data carrier provided in the syringe, a data carrier such as a barcode that cannot be changed or added can be used.

It is also possible to statistically predict the daily usage amount of the drug solution in the medical facility from the past usage history of the drug solution. Therefore, for example, based on the predicted daily usage amount, half a day's worth of the drug solution is aspirated into the syringe in advance, and the remaining amount is aspirated as needed from the usage situation of the day. A syringe filled with a chemical solution can be efficiently supplied when and in a required amount. As a result, it is possible to prevent the chemical solution from being sucked more than necessary, so that the cost of the chemical solution can be significantly reduced.

Further, at least the injection control unit 150 of the injection control unit 150 (see FIG. 8) of the chemical injection device 100 and the imaging control unit 150 (see FIG. 8) of the fluoroscopic imaging device 200 may be connected to the medical network. As a result, various data acquired by the drug solution injection device 100 from the RFID tag 503, the injection rate including the drug solution injected by the drug solution injection device 100, the injection time, the injection amount, the injection result including the injection graph, and the fluoroscopic imaging device 200. Imaging conditions (including imaging time, tube voltage if the imaging device is a CT device, radiation dose, etc.) are injected into the fluoroscopic imaging device and / or other medical information systems such as RIS, PACS, HIS through the medical network. Can be saved as. As a result, the stored injection data is used for managing the injection history, but in particular, the injection amount and the like can also be used for accounting processing. In the accounting process, the injection amount of the drug solution can be grasped in units of 1 ml, for example, so that the unit is finer than the conventional treatment in units of syringe preparation (for example, 100 ml unit). Accounting is possible. As a result, it is possible to reduce the financial burden on the patient (subject). It is also possible to acquire physical information such as the body weight of the subject, ID, name, examination site, and examination method from RIS, PACS, HIS, etc., display them on the drug solution injection device, and perform injection according to the information.

Further, the suction amount of the chemical solution by the chemical solution suction device 30 can be the injection amount of the chemical solution into the subject. By doing so, the sucked chemical solution can be used without waste. The injection amount can be calculated using a calculation formula that takes into consideration factors such as physical characteristics such as the body weight of the subject, the imaging site and the imaging time, or the value can be directly determined by a doctor or the like. The above factors used to calculate the injection amount, or the injection amount value determined by a doctor or the like can be input by the user, and RIS, HIS, PACS, an external server, etc. connected via a network or a direct line, It can also be obtained from an external database such as the cloud. By obtaining the factors used for calculating the injection amount from an external database, it is possible to prevent input errors by the user.

The calculation of the injection amount using the calculation formula can be executed by the injection control unit 150. The function of the injection control unit 150 may be possessed by any computer device such as a chemical injection device, a fluoroscopic imaging device, and various control circuits included in the chemical suction device. That is, the injection amount of the chemical solution can be configured to be calculated by any other computer device instead of the chemical solution injection device. In addition, since the function of the console control circuit is possessed by any other computer device instead of the drug solution injection device, not only the injection amount of the drug solution but also the injection conditions with parameters such as the injection rate and the injection time can be determined by the arbitrary computer. Can be created on the device.

Further, in the above-mentioned fluoroscopic imaging system, it has been described that the suction of the chemical solution from the chemical solution container to the syringe and the injection of the chemical solution from the syringe to the subject are performed by separate devices (chemical solution suction device and chemical solution injection device). However, after mounting an empty syringe on the chemical injection device and connecting the empty syringe and the chemical liquid container, the piston member is pulled out from the cylinder member by the piston drive mechanism of the chemical liquid injection device, so that the chemical liquid injection device is used. It is also possible to suck the drug solution from the container to the syringe. In this case, the chemical suction device becomes unnecessary. Further, the chemical injection device includes a reader or a reader / writer for acquiring data from a data carrier provided in the chemical liquid container.

The present specification discloses the following inventions.

1. 1. A chemical solution suction device 30 that sucks the chemical solution contained in the chemical solution container 20 into a syringe 500 provided with a cylinder 501 and a piston 502.
A piston drive mechanism 53 that moves the piston 502 forward and backward with respect to the cylinder 501.
A reader or reader / writer for drug solution data that acquires the drug solution data from a drug solution data carrier (bar code 23) provided in the drug solution container 20 and recording the drug solution data related to the drug solution contained in the drug solution container 20. Barcode reader 51) and
A writer or reader / writer (RFID module 52) for suction data that records data on a syringe data carrier (RFID tag 03) provided in the syringe 500.
For the suction data so that the drug solution data acquired from the drug solution data carrier (bar code 23) and the suction amount according to the operation of the piston drive mechanism 53 are recorded as the data in the syringe data carrier (RFID tag 503). The suction control unit 58 that controls the operation of the writer or reader / writer (RFID module 52) of the
Chemical solution suction device 30 having the above.

2. 2. A drug solution injection system that sucks a drug solution from the drug solution container 20 into a syringe 500 and injects the drug solution from the syringe 500.
The chemical solution container 20 includes a chemical solution data carrier (bar code 23) in which chemical solution data regarding the contained chemical solution is recorded.
The syringe 500 includes a cylinder 501, a piston 502 and a syringe data carrier (RFID tag 503).
A drug solution suction device 30 for sucking the drug solution contained in the drug solution container 20 into the syringe 500, the suction piston drive mechanism 53 for moving the piston 502 forward and backward with respect to the cylinder 501, and the drug solution data carrier ( A reader or reader / writer (bar code reader 51) for chemical solution data that acquires the chemical solution data from the barcode 23), and a writer or reader / writer for suction data that records data on the syringe data carrier (RFID tag 503). (RFID module 52), a drug solution suction device 30 having the (RFID module 52), and
An injection piston drive mechanism 140 for injecting a chemical solution filled in the syringe 500, for moving the piston 502 forward and backward with respect to the cylinder 501, and the syringe data carrier (RFID tag 503). A chemical injection device 100 having a reader or reader / writer (RFID module 166) for injection data that acquires data from
The operation of the suction piston drive mechanism 53 is controlled so that the chemical solution is sucked from the chemical solution container 20 to the syringe 500 by a predetermined suction amount, and the chemical solution data acquired from the chemical solution data carrier (bar code 23). And a writer or reader / writer (RFID module 52) for suction data so that the suction amount according to the operation of the suction piston drive mechanism 53 is recorded in the syringe data carrier (RFID tag 503) as a part of the data. Suction control unit 58 that controls the operation of
The injection condition of the drug solution is determined by using the data acquired from the syringe data carrier (RFID tag 503) by the reader or reader / writer (RFID module 166) for the injection data, and the injection piston is determined according to the determined injection condition. An injection control unit 150 that controls the operation of the drive mechanism 140,
Chemical injection system with.

3. 3. A chemical solution contained in a chemical solution container 20 having a chemical solution data carrier (bar code 23) on which chemical solution data is recorded is sucked into a syringe 500 equipped with a cylinder 501, a piston 502 and a syringe data carrier (RFID tag 503). A suction device 30, which is a suction piston drive mechanism 53 for moving the piston 502 forward and backward with respect to the cylinder 501, and a reader for chemical solution data for acquiring the chemical solution data from the chemical solution data carrier (bar code 23). A chemical suction device 30 having a reader / writer (bar code reader 51) and a writer or reader / writer (RFID module 52) for suction data that records data on the syringe data carrier (RFID tag 503).
An injection piston drive mechanism 140 for injecting a chemical solution filled in the syringe 500, for moving the piston 502 forward and backward with respect to the cylinder 501, and the syringe data carrier (RFID tag 503). A chemical injection device 100 having a reader or reader / writer (RFID module 166) for injection data that acquires data from
The operation of the suction piston drive mechanism 53 is controlled so that the chemical solution is sucked from the chemical solution container 20 to the syringe 500 by a predetermined suction amount, and the chemical solution data acquired from the chemical solution data carrier (bar code 23). And a writer or reader / writer (RFID module 52) for suction data so that the suction amount according to the operation of the suction piston drive mechanism 53 is recorded in the syringe data carrier (RFID tag 503) as a part of the data. Suction control unit 58 that controls the operation of
The injection control unit 150, which determines the injection conditions of the drug solution using the data acquired from the syringe data carrier (RFID tag 503) and controls the operation of the injection piston drive mechanism 140 according to the determined injection conditions,
A fluoroscopic imaging device 200 that executes an imaging operation of a tomographic image of a subject into which the chemical solution has been injected,
Fluoroscopic imaging system.

4. It is a method of sucking a chemical solution from a chemical solution container 20 having a chemical solution data carrier (bar code 23) on which chemical solution data is recorded to a syringe 500 equipped with a cylinder 501, a piston 502 and a syringe data carrier (RFID tag 503). ,
A piston drive mechanism 53 that moves the piston 502 forward and backward with respect to the cylinder 501, a reader or reader / writer (bar code reader 51) for chemical solution data that acquires the chemical solution data from the chemical solution data carrier (bar code 23). And a step of preparing a writer or reader / writer (RFID module 52) for suction data to record data on the syringe data carrier (RFID tag 503).
A step of acquiring the chemical solution data from the chemical solution data carrier (bar code 23) by the reader or reader / writer (bar code reader 51) for the chemical solution data, and
A step of operating the piston drive mechanism 53 so that the chemical solution is sucked from the chemical solution container 20 to the syringe 500 by a predetermined suction amount.
The chemical solution data acquired from the chemical solution data carrier (bar code 23) and the suction amount according to the operation of the piston drive mechanism 53 are used as the data by the writer or reader / writer (RFID module 52) for the suction data. Syringe data carrier (steps to record on RFID tag 503 and
Method to have.

5. A chemical solution container 20 equipped with a chemical solution data carrier (bar code 23) on which chemical solution data is recorded, and a chemical solution container 20.
Syringe 500 with cylinder 501, piston 502 and syringe data carrier (RFID tag 503),
A piston drive mechanism 53 that moves the piston 502 forward and backward with respect to the cylinder 501, a reader or reader / writer (bar code reader 51) for chemical solution data that acquires the chemical solution data from the chemical solution data carrier (bar code 23). And a drug solution suction device 30 provided with a writer or reader / writer (RFID module 52) for suction data that records data on the syringe data carrier (RFID tag 503).
Is a method of operating a system that has
A step of acquiring the chemical solution data from the chemical solution data carrier (bar code 23) by the reader or reader / writer (bar code reader 51) for the chemical solution data, and
A step of operating the piston drive mechanism 53 so that the chemical solution is sucked from the chemical solution container 20 to the syringe 500 by a predetermined suction amount.
The drug solution data acquired from the drug solution data carrier (bar code 23) by the writer or reader / writer (RFID module 52) for the suction data and the suction amount according to the operation of the piston drive mechanism 53 are used as the data. The step of recording on the syringe data carrier (RFID tag 503) and
How to operate the system.

6. The system is an injection piston drive mechanism 140 that moves the piston 502 forward and backward with respect to the cylinder 501, and a reader or reader / writer (RFID) for injection data that acquires data from the syringe data carrier (RFID tag 503). Further having a chemical injection device 100 having a module 166)
The method of operating the system is as follows.
The step of acquiring data from the syringe data carrier (RFID tag 503) by the reader or reader / writer (RFID module 166) for the injection data.
A step of operating the injection piston drive mechanism 140 according to the conditions obtained by using the data acquired from the syringe data carrier (RFID tag 503), and
The method of operating the system according to 5 above.

7. A chemical solution container 20 equipped with a chemical solution data carrier (bar code 23) on which chemical solution data is recorded, and a chemical solution container 20.
Syringe 500 with cylinder 501, piston 502 and syringe data carrier (RFID tag 503),
A piston drive mechanism 53 that moves the piston 502 forward and backward with respect to the cylinder 501, a reader or reader / writer (bar code reader 51) for chemical solution data that acquires the chemical solution data from the chemical solution data carrier (bar code 23). And a drug solution suction device 30 provided with a writer or reader / writer (RFID module 52) for suction data that records data on the syringe data carrier (RFID tag 503).
Is a computer program for systems that have
A step of acquiring the chemical solution data from the chemical solution data carrier (bar code 23) by the reader or reader / writer (bar code reader 51) for the chemical solution data, and
A step of operating the piston drive mechanism 53 so that the chemical solution is sucked from the chemical solution container 20 to the syringe 500 by a predetermined suction amount.
The drug solution data acquired from the drug solution data carrier (bar code 23) by the writer or reader / writer (RFID module 52) for the suction data and the suction amount according to the operation of the piston drive mechanism 53 are used as the data. The step of recording on the syringe data carrier (RFID tag 503) and
A computer program that causes the system to execute.

8. The system is an injection piston drive mechanism 140 that moves the piston 502 forward and backward with respect to the cylinder 501, and a reader or reader / writer (RFID) for injection data that acquires data from the syringe data carrier (RFID tag 503). Further having a chemical injection device 100 having a module 166)
The computer program
The step of acquiring data from the syringe data carrier (RFID tag 503) by the reader or reader / writer (RFID module 166) for the injection data.
A step of operating the injection piston drive mechanism 140 according to the conditions obtained by using the data acquired from the syringe data carrier (RFID tag 503), and
7. The computer program according to 7 above, which causes the system to further execute.

10 Syringe 20 Chemical solution container 21 Container body 22 Fluid connector 23 Bar code 30 Chemical solution suction device 31 Main body 32 Cylinder holder 32a Recess 33 Piston holder 33a Drawer member 51 Bar code reader 52 RFID module 52a RFID control circuit 52b Antenna 53 Piston drive mechanism 54 Detachment Detection sensor 55 Suction amount setting unit 56 Display 57 Communication module 58 Suction control unit 100 Chemical solution injection device 101 Console 110 Injection head 140 Piston drive mechanism 150 Injection control unit 152 Imaging control unit 154 Display unit 156 Input unit 168 Communication module 164 RFID control circuit 165 Antenna 166 RFID Module 200 Perspective Imaging Device 201 Scanner 500 Syringe 501 Cylinder 501a Cylinder Flange 502 Piston 503 RFID Tag 900 Heater 910 Discard Box

Claims (11)

A drug solution suction device that sucks the drug solution contained in the drug solution container into a syringe equipped with a cylinder and a piston.
A piston drive mechanism that moves the piston forward and backward with respect to the cylinder,
From the chemical data carrier provided on the chemical data relating chemical contained in the chemical container is recorded and the drug solution container, a reader or a reader / writer for chemical data for acquiring the chemical data,
A writer or reader / writer for suction data that records data in a syringe data carrier provided in the syringe.
The operation of the writer or reader / writer for the suction data is controlled so that the chemical solution data acquired from the chemical solution data carrier and the suction amount according to the operation of the piston drive mechanism are recorded in the syringe data carrier as the data. Suction control unit and
Have,
The suction control unit is a chemical suction device configured to calculate at least one checksum using the chemical liquid data acquired from the chemical liquid data carrier and record the calculated checksum in the syringe data carrier. It further has a suction amount setting unit configured so that the user can set the suction amount of the chemical solution.
The chemical suction device according to claim 1, wherein the suction control unit further controls the operation of the piston drive mechanism according to the suction amount set by the suction amount setting unit. The chemical suction device according to claim 1, further comprising a communication module for transmitting and receiving data to and from an external device. The chemical suction device according to claim 3, wherein data regarding the suction amount is obtained from the external device through the communication module, and the suction control unit sets the obtained data as the suction amount. It is a method of recording data when aspirating a chemical solution contained in a chemical solution container into a syringe.
The control unit causes a reader or reader / writer for chemical solution data to acquire the chemical solution data from a chemical solution data carrier in which the chemical solution data regarding the chemical solution container provided in the chemical solution container is recorded.
The control unit causes a writer or reader / writer for suction data to record data in a syringe data carrier provided in the syringe, and the drug solution data acquired from the drug solution data carrier and the suction amount of the drug solution. To be recorded as the above data
At least one checksum is calculated using the chemical solution data acquired from the chemical solution data carrier , and the calculated checksum is recorded in the syringe data carrier.
How to record data including. A drug solution injection system that sucks a drug solution from a drug solution container into a syringe and injects the drug solution from the syringe.
The chemical solution container comprises a chemical solution data carrier in which chemical solution data regarding the contained chemical solution is recorded.
The syringe comprises a cylinder, a piston and a syringe data carrier.
A drug solution suction device that sucks the drug solution contained in the drug solution container into the syringe, and acquires the drug solution data from the suction piston drive mechanism that moves the piston forward and backward with respect to the cylinder and the drug solution data carrier. A chemical aspirator having a reader or reader / writer for chemical data and a writer or reader / writer for suction data that records data in the syringe data carrier.
A chemical injection device for injecting a chemical solution filled in the syringe, a piston drive mechanism for injection that moves the piston forward and backward with respect to the cylinder, and a reader for injection data that acquires data from the syringe data carrier. Or a chemical injection device with a reader / writer, and
The operation of the suction piston drive mechanism is controlled so that the chemical solution is sucked from the chemical solution container to the syringe by a predetermined suction amount, and the chemical solution data acquired from the chemical solution data carrier and the suction piston drive mechanism A suction control unit that controls the operation of the writer or reader / writer for suction data so that the suction amount according to the operation is recorded in the syringe data carrier as a part of the data.
The injection control unit that determines the injection conditions of the drug solution using the data acquired from the syringe data carrier by the reader or reader / writer for the injection data and controls the operation of the injection piston drive mechanism according to the determined injection conditions. When,
Have,
The suction control unit is configured to calculate at least one checksum using the chemical solution data acquired from the chemical solution data carrier and record the calculated checksum in the syringe data carrier. .. The drug solution injection system according to claim 6, wherein the injection control unit is connected to another system through a network, and data acquired from the syringe data carrier is transmitted to the other system through the network. The chemical suction device further includes a suction amount setting unit configured so that the user can set the suction amount of the chemical liquid, and the suction control unit further includes the piston according to the suction amount set by the suction amount setting unit. The chemical injection system according to claim 6 or 7, which controls the operation of the drive mechanism. The injection control unit reads the data recorded in the syringe data carrier by the reader or reader / writer for the injection data, and calculates the checksum according to a predetermined procedure using the read data. 6. The calculated checksum is compared with the checksum recorded in the syringe data carrier, and if both checksums do not match, it is determined that an error has occurred. The drug solution injection system according to any one of 8 to 8. A drug solution suction device that sucks a drug solution contained in a drug solution container having a drug solution data carrier in which drug solution data is recorded into a cylinder, a piston, and a syringe equipped with a syringe data carrier, wherein the piston is attached to the cylinder. A suction piston drive mechanism that moves forward and backward, a reader or reader / writer for chemical solution data that acquires the chemical solution data from the chemical solution data carrier, and a writer or reader / writer for suction data that records data in the syringe data carrier. And, with a chemical suction device,
A chemical injection device for injecting a chemical solution filled in the syringe, a piston drive mechanism for injection that moves the piston forward and backward with respect to the cylinder, and a reader for injection data that acquires data from the syringe data carrier. Or a chemical injection device with a reader / writer, and
The operation of the suction piston drive mechanism is controlled so that the chemical solution is sucked from the chemical solution container to the syringe by a predetermined suction amount, and the chemical solution data acquired from the chemical solution data carrier and the suction piston drive mechanism A suction control unit that controls the operation of the writer or reader / writer for suction data so that the suction amount according to the operation is recorded in the syringe data carrier as a part of the data.
An injection control unit that determines the injection conditions of the drug solution using the data acquired from the syringe data carrier and controls the operation of the injection piston drive mechanism according to the determined injection conditions.
A fluoroscopic imaging device that executes an imaging operation of a tomographic image of a subject injected with the chemical solution,
Have,
The suction control unit is a fluoroscopic imaging system configured to calculate at least one checksum using the chemical solution data acquired from the chemical solution data carrier and record the calculated checksum in the syringe data carrier. The fluoroscopic imaging system according to claim 10, wherein the chemical injection device and the fluoroscopic imaging device are connected to each other so that data can be transmitted and received between them.

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