JP2007000487A - Infusion bag with ic tag and alarm system for termination of infusion using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an infusion bag which prevents medical mispractice and is simply composed for accurately informing termination of infusion, and an alarm system for termination of infusion. <P>SOLUTION: The infusion bag has at least two IC tags. One of the IC tags is installed on a position which mediates a packed drug and the infusion bag but separates them in a state that the infusion bag is set. The other IC tag is installed on the bottom or the vicinity of end point of the infusion bag. The IC tag installed on the position which mediates the drug and the infusion bag but separates them has at least a memory section which storages drug data concerning the packed drug and a radio communication section connected to the memory section. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an infusion container and an infusion end notification system using the same, and with a simple system, prevents mistakes such as drug misplacement and setting of administration conditions, and ensures infusion. The present invention relates to a technique for informing the end.

In the medical field, there are many medical errors due to mistakes in drug mix and setting of administration conditions, mainly due to a shortage of nurses. In order to cope with such a problem, a method has been proposed in which a barcode is attached to a medicine container and read and collated with a barcode reader when the medicine container is set to a medicine injection pump (for example, Patent Document 1).
Japanese Patent Publication No. 5-500917

  However, when the medicine container is correctly set on the loading portion of the medicine injection device, the troublesome work that the surface of the barcode and the reading surface of the barcode reader must be matched is accompanied. In the case of a small drug container, there is a problem that there is no area for attaching a barcode.

In addition, the infusion container (infusion bag) and infusion set are often connected at the bedside, but even if the infusion bag containing the drug is specified, only the connection tube is set in the case of a peristaltic pump. There has also been pointed out the possibility of accidental connection to an infusion pump set in a set state. There has also been proposed an infusion end notification device that detects the end of infusion and notifies a nurse center or the like (for example, Patent Document 2).
JP-A-11-299888

  In addition, it has been proposed to use an IC tag in a medicine injection device, but various information stored therein cannot be read from an IC tag provided in a place where medicine or the like is stored. There's a problem. In addition, an infusion container and an infusion end notification system with a simple configuration for preventing medical errors and notifying the end of infusion accurately have not been proposed.

Accordingly, the present invention has been made in view of the above-described problems, and it is an object of the present invention to provide an infusion container and an infusion end notification system having a simple configuration for preventing medical errors and accurately informing the end of infusion. It is said.

  In order to solve the above-described problems and achieve the object, the present invention includes at least two IC tags, and one of the IC tags includes a medicine stored in an infusion container and an infusion container. The other IC tag is provided at the bottom or near the tip of the infusion container, and the IC tag provided at the place not in contact with the medicine through the infusion container relates to at least the medicine contained. It is an infusion container provided with an IC tag, characterized by having a storage unit that records medicine data and a wireless communication unit connected to the storage unit.

  An infusion pump using the above infusion container, wherein the infusion pump is provided with a pump means and includes a wireless communication unit that performs wireless communication with the wireless communication unit. is there. In addition, the syringe pump using the infusion container includes a pressing unit that presses a pusher of the syringe and a wireless communication unit that performs wireless communication with the wireless communication unit. It is a syringe pump using an infusion container.

  An infusion device having an infusion end notification function using the above-mentioned infusion container, wherein the infusion device uses an infusion container characterized by comprising a wireless communication unit that performs wireless communication with a wireless communication unit It is. The wireless communication unit is an infusion completion notification system characterized in that transmission / reception is possible between a host computer and a nurse center via a hospital LAN or the like. In addition, a step of reading information written in one IC tag by a wireless communication unit, a step of displaying the read information on a display unit, and a plurality of IC tags at a predetermined frequency at a predetermined interval after the start of infusion A step of reading the information written in the wireless communication unit, a step of determining the end of the infusion on condition that the information of the plurality of IC tags has been read, and a step of informing the end of the infusion. An infusion end notification method characterized by the above. Also, a program code for reading the information written in one IC tag by the wireless communication unit, a program code for displaying the read information on the display unit, and a predetermined code at predetermined intervals after the start of infusion A program code of a step of reading information written in a plurality of IC tags at a frequency by a wireless communication unit; a program code of a step of determining the end of the infusion on the condition that the information of the plurality of IC tags is read; A computer-readable storage medium storing a program code of an infusion end notification method characterized by comprising:

  ADVANTAGE OF THE INVENTION According to this invention, while preventing a medical error, the infusion container of an easy structure for notifying completion | finish of an infusion accurately, and an infusion end notification system are obtained. In addition, even when a drug is injected from an infusion container without using an infusion device such as an infusion pump or syringe pump, the end of the infusion can be notified to the nurse center, hospital host computer, etc. without using an infusion probe or the like. It is possible to centrally manage the grasp and termination of prescription status for patients.

<Example 1>
A case of injecting a drug from an infusion container using a peristaltic infusion pump as an infusion device according to the first embodiment of the present invention will be described below. In FIG. 1, an infusion bag 16 contains a medicine such as a liquid infusion or physiological saline based on a prescription. As shown in FIG.1 (c), infusion is performed to a patient in the state hung on the top hook of the infusion stand. In the state where the infusion bag 16 is hung on the hook at the top of the infusion stand before the start of the infusion, gas (air, nitrogen) is present at the top. In addition, an RFID (IC tag) 17a is provided on the upper part of the infusion bag 16 (region where gas exists).

FIG. 5 is a schematic block diagram of the RFID 17a. In FIG. 5, an RFID (identification tag) 17a is composed of an analog input / output circuit unit 1008 and a CPU 1000 which is a digital circuit. The analog input / output circuit unit 1008 is connected to a loop antenna 1007a, which is a first wireless communication unit, so as to receive a radio of a predetermined frequency transmitted via the antenna 215 via the antenna 1007a ( RF circuit) 1007 is connected. The radio frequency circuit 1007 generates a clock signal by a power supply unit 1005 for supplying a predetermined voltage to the CPU 1000, a first signal control unit 1006a for converting the read medicine data into a digital signal and sending it to the CPU 1000. A clock unit 1004 for starting and driving the CUP 1000 is connected. Note that a second signal control unit 1006b that converts a digital signal related to time and flow rate sent from the CPU 1000 into an analog signal and sends it to the radio frequency circuit 1007 may be provided as necessary.

On the other hand, the CPU 1000 is connected to the ROM 1002. The ROM 1002 stores drug data related to drugs (drug identification data such as drug identification data, drug identification data such as drug identification code, drug recognition data such as standard drug code standard drug number (serial number, etc.), respectively. Including at least one of an arbitrary number and code determined by a medical institution such as a hospital).

Reference numeral 1001 denotes an E ² PROM capable of rewriting data such as a flash memory. The E ² PROM 1001 stores data that cannot be changed by medical personnel such as doctors, such as the type and concentration of the drug, the upper and lower limit values of the flow rate at the time of infusion, the drug data of both time and flow rate, or any one of them. Data that can be rewritten by a medical staff such as a doctor (data in charge, doctor in charge, patient name, patient code, ward / room code, etc.) can be input and stored. The RAM 1003 is used as a storage unit in signal processing.

  The RFID 17a is obtained by specially printing an integrated circuit chip connected to a loop antenna 1007a occupying a large area on a base, and does not have a power supply itself, and electromagnetic waves generated by radio waves received by the loop antenna. Power generation is performed by induction, and reading and rewriting are performed by driving a circuit with this power generation. The RFID 17a serves as a medicine recognition code.

  At the bottom of the infusion bag 16, another RFID (IC tag) 17b is provided so as to come into contact with the stored medicine through the infusion bag 16 in a suspended state. The RFID 17b does not necessarily have the same configuration as the RFID 17a described above, and includes a minimum necessary CPU, ROM, RAM, and antenna unit. The data stored in the storage unit of the RFID (IC tag) 17b is not particularly limited, and may be only a serial number (serial number), or may store a patient code or the like. Thus, the infusion bag 16 is provided with a plurality of at least two RFID (IC tags). Further, the RFID (IC tag) 17b may be provided at an appropriate position in the vicinity of the infusion bag 16 of the infusion tube 19 instead of the bottom of the infusion bag 16.

(Infusion completion notification with an infusion pump)
Next, infusion completion notification when an infusion pump is used will be described. FIG. 3 is a block diagram of the infusion pump 1. A CPU (control unit) 100 that controls the entire operation of the infusion pump 1, an infusion probe 101, an infusion rate detection unit 101 a, a door unit detection circuit 102 that detects whether the door is opened or closed, and whether the infusion tube 19 is blocked. Blockage detection circuit 103, bubble detection circuit 104 for detecting the presence or absence of air bubbles (air) longer than a predetermined length in the infusion tube 19, setting / input unit 105 for setting / inputting the infusion flow rate, infusion speed, etc., starting of infusion, A start switch 106 for instructing to start reading RFID, a power switch 107, an antenna 115 constituting the wireless communication unit 15 for performing RFID reading wirelessly, an RFID reading unit 115a, and a motor 116 for driving Motor drive circuit 116a, buzzer drive circuit 117a for driving alarm buzzer 117, LED, etc. Display unit drive circuit 118a for driving display unit 118, operation display unit drive circuit 114a for driving operation indicator 114, external communication unit 119 for data transmission / reception with a nurse center, hospital host computer, etc., DC / It consists of an AC power source 120 and the like.

When the patient is ready for the infusion, the following flow is performed to determine and notify the end of the infusion. By operating the reading start switch 106 of the operation panel 12a provided on the door 12 of the infusion pump 1 (step S1), the data of the RFID 17a is read via the antenna 115, preferably using a frequency of 2.45 GHz (step S1). S2). Of the read data, at least the patient name and the drug name are displayed on the display unit 218 (step S3). A medical worker such as a nurse confirms the patient name displayed on the display unit 218 and starts the infusion by operating the start switch 106 to start the infusion (step S4). The state of infusion is performed by feedback control using an infusion probe. The reading start switch and the infusion start switch may be made the same to distinguish which operation starts depending on the number of pressings, or a switch may be provided separately.

  As described above, the infusion pump 1 has various alarm detection / display functions such as bubbles, blockages, and battery potential reduction. In a normal infusion situation, the operation indicator 114 such as an LED is operated in green, for example, and in an alarm notification situation, it is lit (flashed) in red, for example. During the infusion operation, the radio communication unit 15 reads another RFID (IC tag) 17b preferably at a frequency of 2.45 GHz at a predetermined cycle (predetermined interval), for example, at an interval of 1 minute.

  If the drug remains in the infusion bag 16, the RFID (IC tag) 17b cannot be read due to the characteristics of the RFID (IC tag) (step S5). If the infusion is completed and no medicine remains in the infusion bag 16, the data of the RFID (IC tag) 17b can be read (step S5). Thus, it is determined that the infusion is finished (step S6), the drive of the infusion pump 1 is stopped (step S7), a notification to that effect (step S8), and the infusion is finished (step S9). If the notification of the end of the infusion is notified to the in-hospital host computer, the nurse center computer, etc. via the external communication unit 119, as shown in FIG. ing. This processing flow program is stored in the CPU 100, RAM, etc. of the infusion pump 1.

<Example 2>
(Notice of end of infusion due to natural fall)
Next, the infusion end notification in a natural (gravity) drop will be described. Drawing uses FIG.1 (c). When the patient is ready for infusion, the medical staff such as a nurse reads the data of the RFID 17a with a portable terminal (not shown) having an RFID reading function, preferably using a frequency of 2.45 GHz. Among the read data, at least a patient name and a drug name are displayed on a display unit (not shown) of the portable terminal. A medical worker such as a nurse checks the patient name displayed on the display unit, adjusts the infusion amount (infusion rate), and starts the infusion. Information on the start of the infusion is read from the portable terminal by the RFID reading unit 1115 provided in the terminal of the LAN 1100 and notified to the hospital host computer, the nurse center computer, and the like. The RFID reading unit 1115 preferably reads the RFID (IC tag) 17b using a frequency of 2.45 GHz at a predetermined cycle (predetermined interval), for example, at an interval of 1 minute.

  When the drug remains in the infusion bag 16, the RFID (IC tag) 17b cannot be read due to the characteristics of the RFID (IC tag). If the infusion is completed and no medicine remains in the infusion bag 16, data of the RFID (IC tag) 17b can be read. In this way, it can be determined that the infusion has ended, and notification to that effect can be made. The notification of the end of the infusion is notified to the hospital host computer, the nurse center computer, etc. via the hospital LAN 1100 and the like, and is displayed on the display screen as shown in FIG. This processing flow program is stored in a CPU, RAM, or the like of an in-hospital host computer or a nurse center computer.

<Example 3>
(Notice of end of injection with syringe pump)
Next, liquid injection completion notification when a syringe pump is used will be described with reference to FIG. FIG. 4 is a block diagram of the infusion pump 1. CPU (control unit) 200 for controlling the entire operation of the syringe pump 2, a syringe diameter detection circuit 101 for detecting the outer diameter of the syringe 26 to be set, a remaining amount detection circuit 202 for detecting the remaining amount of the chemical liquid in the syringe 26, Set the occlusion detection circuit 203 that detects the presence or absence of occlusion of the infusion tube, the pusher / clutch disengagement detection 204 that detects the disengagement of the pusher 26c and the disengagement of the clutch 222, the injection rate of the medicine in the syringe 26 to the patient Setting / input unit 205 for input, start switch 206 for instructing start of injection, RFID reading start, power switch 207, antenna 215 constituting RFID for wirelessly reading RFID, The reading unit 215a, a motor driving circuit 216a for driving the motor 216, and an alarm buzzer 217 are driven. Buzzer drive circuit 217a for driving, display unit drive circuit 218a for driving display unit 218 such as LED, operation display unit drive circuit 214a for driving operation indicator 214, nurse center, hospital host computer, etc. For example, an external communication unit 219, a DC / AC power supply 220, and the like.

The syringe 26 includes a syringe outer cylinder 26a, a flange 26b, a pusher 26c, and a gasket 26. Examples of the medicine 28 filled in the syringe 26 include a so-called prefilled syringe in which a manufacturer such as an analgesic is previously filled with a predetermined medicine, and a syringe which is dispensed and filled in a hospital or the like. After lifting the clamp 200 of the syringe pump 2, inserting the flange 26 b of the syringe 26 into the slit 221, holding the pusher 26 c with the clutch 222, and lowering the clamp 223, the syringe 26 is set in the syringe pump 2. .

  The syringe pump 2 includes the operation panel 20 including the setting / input unit 205, the start switch 206, the power switch 207, the display unit 218 and the like, the setting dial 20a for setting various conditions, the main body 21, the operation indicator 214, and the like. In order to read RFID data wirelessly, an antenna 115 and an RFID reading unit 115a are provided. When preparation for injection into the patient is completed, the data of the RFID 17a is read through the antenna 215, preferably using a frequency of 2.45 GHz, by operating the start switch 206 provided on the operation panel 20 of the syringe pump 2. Among the read data, at least the patient name and the drug name are displayed on the display unit 218. A medical staff such as a nurse confirms the patient name displayed on the display unit 218 and starts the injection by operating the start switch 206 in order to start the injection. The injection state is performed by a pusher / clutch disengagement detection circuit 204, a blockage detection circuit, and the like. When the injection is continued in a normal operation, the operation indicator 214 such as an LED operates in green, for example, and in a situation where an alarm is notified, the operation indicator 214 is lit (flashing) in red, for example.

The data of the RFID 27a provided in the syringe 26 is read by the antenna 215 and the RFID reading unit 215a, preferably using a frequency of 2.45 GHz. Among the read data, at least the patient name and the drug name are displayed on the display unit 22. A medical staff such as a nurse confirms the patient name displayed on the display unit 22 and starts injection by operating the start switch 206. The reading start switch and the injection start switch may be the same, and the operation to be started may be distinguished depending on the number of pressings, or a switch may be provided separately.

  When the medicine remains in the syringe 26, the RFID (IC tag) 27b cannot be read due to the characteristics of the RFID (IC tag). The RFID reading unit 115 reads the RFID (IC tag) 17b at a predetermined cycle (predetermined interval), for example, at an interval of 1 minute, preferably using a frequency of 2.45 GHz. If the injection of the chemical solution is completed and no drug remains in the syringe 26, the data of the RFID (IC tag) 27b can be read. In this way, it can be determined that the injection of the chemical liquid has ended, and a notification to that effect can be made. The notification of the end of the injection of the chemical solution is displayed on the display screen as shown in FIG. 7 if it is notified to a computer such as a hospital host computer, a nurse center, or a portable terminal via the external communication unit 219. Centralized management is now possible. The processing flow program is stored in the CPU 200, RAM, or the like of the syringe pump 2. FIG. 7A is an example of displaying a list of identification numbers, wards, hospital rooms, administration states, and the like for each patient, and is an example in which blinking (lighting) or display by color is performed when infusion (infusion) is completed. . FIG. 7B shows individual patient data, which is displayed together with the display of FIG. 7B, so that unified management becomes extremely easy.

  As described above, the description has been given based on the embodiment. However, the present invention is not limited to the embodiment, and the setting can be changed as appropriate.

It is the schematic of the infusion system of Examples 1-2 of this invention. It is an external appearance perspective view of the syringe and syringe pump used for Example 3 of this invention. It is a block diagram of the infusion pump of the infusion system of Example 1 of this invention. It is a block diagram of the syringe pump of Example 3 of this invention. It is a block diagram of the block diagram of RFID used for Examples 1-3 of the present invention. It is a flowchart in Example 1 of this invention. It is a monitor screen in Examples 1-3 of the present invention.

Explanation of symbols

1 peristaltic infusion pump, 2 syringe pump, 17a RFID, 17b RFID, 19 infusion tube, 26 syringe pump, 115,215 antenna, 1007a antenna

Claims (7)

At least two IC tags,
One of the IC tags is provided at a location that does not contact the medicine stored in a state where the infusion container is set via the infusion container, and the other IC tag is a bottom or a tip of the infusion container. In the vicinity of the club,
The IC tag provided at a location not in contact with the medicine through the infusion container has at least a storage section that records medicine data related to the stored medicine, and a wireless communication section connected to the storage section. An infusion container equipped with a characteristic IC tag. An infusion pump using the infusion container according to claim 1, wherein the infusion pump is provided with a pump means and includes a wireless communication unit that performs wireless communication with the wireless communication unit. pump. A syringe pump using the infusion container according to claim 1, further comprising a pressing unit that presses a pusher of the syringe, and a wireless communication unit that performs wireless communication with the wireless communication unit. A syringe pump using an infusion container. An infusion completion notification system using the infusion container according to claim 1 or 2, further comprising a wireless communication unit that performs wireless communication with the wireless communication unit. apparatus. The infusion completion notification system according to claim 4, wherein the wireless communication unit is capable of transmitting and receiving between a host computer and a nurse center via a hospital LAN or the like. Reading information written in one IC tag by a wireless communication unit;
Displaying the read information on the display unit;
After the start of the infusion, reading the information written in the plurality of IC tags at a predetermined frequency at a predetermined interval by the wireless communication unit;
Determining the end of infusion on condition that information of a plurality of IC tags has been read;
An infusion end notifying method comprising the steps of informing the end of infusion. A program code of a step of reading information written in one IC tag by a wireless communication unit;
A program code for displaying the read information on the display unit; and
After starting the infusion, the program code of the step of reading the information written in the plurality of IC tags at a predetermined frequency at a predetermined interval by the wireless communication unit,
A program code of the step of determining the end of the infusion on condition that information of a plurality of IC tags is read;
A computer-readable storage medium storing a program code of an infusion end notifying method, characterized by comprising: a program code of a step for informing the end of infusion.

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