JP2009201811A - Medicine injector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent an erroneous operation by achieving, with a simple operation, automatic locking and unlocking of operation input of a medicine injector. <P>SOLUTION: A medical worker includes an identification tag which transmits identification information for identifying he or she as a medical worker. A medicine injector includes a communicating section for reading the identification tag. When a medical worker operates the medicine injector, the identification tag is read by the communicating section of the medicine injector to unlock an operating section. The communication between the identification tag of the medical worker and the communicating section of the medicine injector adopts electromagnetic induction type communication which allows a short-distance communication by bringing them close to each other. Since electromagnetic induction type communication occurs immediately, unlocking of the operating section is carried out easily by bringing the identification tag and the communicating section close and by effecting communication between them. In addition, an erroneous operation of the medicine injector is prevented because the operating section is locked over a period of time when the operating section is not unlocked. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a drug injection device that injects a drug at a predetermined injection rate (mL / h) programmed into a living body, such as an infusion pump or a syringe pump, and particularly relates to a technique for preventing erroneous operation.

Conventionally, in the medical field, there are many medical errors due to mistakes in mixing drugs and setting errors in administration conditions, which have become social problems. In order to deal with such problems, 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 on a chemical injection pump (for example, Patent Document 1: JP 2004-236695 A).
JP 2004-236695 A

Further, as one of the causes of medical malpractices, a change in the liquid supply amount or a scheduled amount, and start / interruption of liquid supply are added by an operation that is not intended by the medical staff. In a medical drug injection device such as a conventional syringe pump or infusion pump, a lock button is provided to prevent erroneous operation. By singing the lock button, the operation of the button or the like can be invalidated. However, in order to prevent an erroneous operation, it is necessary to continuously press the lock button for about 2 seconds, and it is necessary to continuously press the lock button when releasing the operation, which makes the operation complicated.

Therefore, the present invention has been made in view of the above-described problems, and it is possible to lock and unlock an operation input with a simple operation in a drug injection device, and to prevent an erroneous operation. The purpose is to provide.

In order to solve the above problems, in the present invention, the operation to the operation part of the drug injection device is locked, and when the medical worker operates the drug injection device, the lock is released by a simple method. Provide the drug infusion device with possible functions. More specifically, authentication of a medical worker using an electromagnetic induction method capable of communication only at a short distance is adopted for the medicine injection device. The drug injection device according to the present invention includes a communication unit that collects identification information from an identification tag in which identification information related to a medical worker is recorded, a control unit that performs a determination process of information held in the identification tag and a liquid feeding process of a drug, A drug injection device having an operation unit for performing an injection flow rate and a liquid supply start / stop, a display unit, a storage unit, and a liquid supply unit for supplying a drug, wherein the operation is permitted to the storage unit When the medical unit name is stored and the control unit determines that the acquired identification information is the specific medical worker permitted to operate when the medical worker brings an ID card that is an identification tag close to each other The control unit receives an operation input from the operation unit. In addition, after the medicine injection device can be operated, a medicine liquid feeding start operation is performed, so that the control unit does not accept an operation input from the operation part. In addition, when the medicine injection device can be operated further when a counter unit is provided, the control unit receives an operation input from the operation unit after a certain period of time has elapsed since the counter unit can be operated. It is characterized by not accepting. In addition, the display unit includes a display of the state of the drug injection device, and displays on the display unit when the control unit does not accept an input from the operation unit. In addition, the storage unit includes a storage unit that records a history of the state of the drug injection device, and stores identification information of the medical staff acquired by the communication unit. The identification tag is an identification tag used in the above-described drug injection device, and the identification tag includes a storage unit that records identification information about the medical staff and a communication unit connected to the storage unit. The communication information of the medical staff can be communicated between the communication unit of the identification tag and the communication unit installed in the medicine injection device.

The medical worker has an identification tag capable of transmitting identification information that enables identification of being a medical worker, the drug injection device is provided with a communication unit that can read the identification tag, and the medical worker has the drug injection device When performing the operation, the operation unit is unlocked by causing the communication unit of the medicine injection device to read the identification tag. Here, the communication between the identification tag of the medical staff and the communication unit of the medicine injection device uses electromagnetic induction communication that enables short-range communication by bringing both close together. The electromagnetic induction type communication can be performed immediately, and when the communication is established, the operation unit can be easily unlocked. The operation unit during the unlocking period is locked, and it is possible to prevent erroneous operation.

The drug injection device is configured by any one of an infusion pump, a syringe pump, a roller pump, and a dialysis pump.

According to the present invention, it is possible to realize automatic locking and unlocking of an operation input in a medicine injection device with a simple operation and to prevent an erroneous operation.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings as necessary, but the present invention is not limited to the embodiments.

FIG. 1 is a diagram showing an overall system 100 constituted by a drug injection device and an identification tag in the present invention.

Reference numeral 110 denotes a drug injection device, which is a general term for devices for feeding drugs such as an infusion pump, a syringe pump, a roller pump, and a dialysis pump. The drug injection device 110 is a device used by a doctor, a nurse, or the like to send a drug to a patient.

2. Configuration of each device
Hereinafter, the configuration of each device of the overall system 100 including the drug injection device 110 and the identification tag 120 will be described in detail.

Drug injection device (110)
The medicine injection device 110 includes a CPU such as a microcomputer, a control program for the entire device executed by the CPU, a ROM that stores various data, a RAM that temporarily stores measurement data and various data as a work area, and the like. 111, a communication unit 112 using an electromagnetic induction method for acquiring identification information of the identification tag 120 by performing short-range communication with the communication unit 122 of the identification tag 120, and a lock state of the drug injection device A display unit 113 such as an LED or an LCD, an operation unit 114 configured to input and set a flow rate and a predetermined amount of a drug injecting device, and start / stop liquid supply, and to supply a drug. Liquid feeding part 115 including a peristaltic pump, a roller pump, a drive motor, etc. Control of the power supply unit 116 that supplies the acquired power supply to the device, a counter unit 117 that includes a counter that measures the time after the state transition of the pharmaceutical injection device 110, information acquired by the communication unit 112, and operation status of the pump The storage unit 118 stores the injection operation status of the unit 111, the alarm status, a list of medical workers who can use the apparatus (including identification codes and the like), and the like in a flash memory or a hard disk. The memory | storage part 118 is not limited to arrange | positioning inside the chemical | medical agent injection apparatus 110, The structure arrange | positioned in the state which can be attached or detached with respect to the apparatus exterior is also possible. In addition, the medical worker list (including an identification code and the like) may be downloaded from a host computer via an external communication cable (not shown) and stored, or may be input by the operation unit 114.

FIG. 2 shows an infusion pump 210 which is a specific example of the drug injection device 110. The infusion pump 210 is based on a control unit 211 configured by a CPU for controlling the liquid feeding unit 215, the communication unit 212, and the display unit 213, and an electromagnetic induction method in which a carrier frequency defined by ISO 14445 and ISO 18092 is 13.56 MHz. The LED illuminates or flashes when the communication unit 212 and the operation unit 214 are in a locked state where the ID card 220 can be easily brought into contact with the ID card 220 to perform near field communication. A display unit 213 for displaying a lock state, an operation unit 214 which is a button for setting the flow rate / scheduled amount of the infusion pump 210 and starting / stopping the liquid feeding, and a peristaltic for feeding the medicine. A liquid feeding section 215 that is a pump, a power supply section 216 that supplies power to drive the infusion pump 210, and an infusion pump 210 A memory composed of a counter unit 217 for measuring the time after the state transition, identification information acquired from the communication unit 212, a memory for storing a set value and an operation state set in the operation unit 214 thereafter, and the like Part 218. The storage unit 218 stores information acquired by the communication unit 212, an injection operation status of the control unit 211 such as a pump operation status, an alarm status, a list of medical workers (including an identification code) that can use the device, and the like. To remember.

Identification tag (120)
The identification tag 120 includes a storage unit 121 configured by a non-volatile memory to hold the identification information, and a communication unit 122 for communicating with the communication unit 112 of the drug injection device 110 to transmit the identification information. The identification tag 120 does not have a power source, and the communication unit 122 generates an operation power source from the carrier frequency output from the communication unit 112 of the medicine injection device 110 and operates.

The shape of the identification tag 120 may be a card shape or a wristband shape defined by ISO / IEC7810ID-1. The identification information is information that can identify an individual, or information that can identify the business form of a medical worker such as a doctor, nurse, or engineer. The drug injection device 110 unlocks the operation unit 114. This is necessary information.

FIG. 2 shows an ID card 220 which is a specific example of an identification tag. The ID card 220 has ID information serving as identification information of doctors and nurses, a storage unit 218 composed of FRAM or EEPROM, a communication unit 212 of the infusion pump 210, a carrier frequency defined by ISO 14445 and ISO 18092, and 13.56 MHz. It is comprised from the communication part (not shown) which communicates by near field communication by the electromagnetic induction system. The identification information is information for identifying an individual or information for identifying a medical worker such as a doctor or a nurse.

The operation method will be described together with the state transition diagram of FIG. By supplying power to the infusion pump 210 and pressing the power button of the operation unit 214 to turn on the power, the state of the infusion pump 210 changes from power OFF (step S310) to power ON (step S320). Immediately after the power is turned on, the infusion pump 210 is in the locked state (step S360), and the operation on the operation unit 214 is processed as invalid by the control unit 211. The display unit 213 of the infusion pump 210 blinks the LED to indicate that it is locked. The infusion pump 210 in the locked state (step S360) checks the presence / absence of the adjacent ID card 220 by periodically operating the communication unit 212 at a predetermined interval of about 0.5 seconds.

A case where the infusion pump 210 in the locked state (step S360 or step S370) is operated will be described. The infusion pump 210 acquires the identification information of the ID card 220 by causing the ID card 220 held by a medical staff such as a doctor or nurse to communicate with the communication unit 212 of the infusion pump 210. Identification information that can be unlocked is set in advance in the memory unit 218 of the infusion pump 210 and the memory of the control unit 211, and the control unit 211 uses information stored in the memory of the storage unit 218 and the control unit 211 and the ID card 220. When the acquired identification information is compared and the infusion pump 210 recognizes that it is a medical worker capable of unlocking, the infusion pump 210 transitions to the unlocked state (step S350 or step S380), and the ID card 220 as the unlocking operator. Is stored in the storage unit 218. In the case where safety is further emphasized in order to prevent erroneous operation, when the practitioner is determined to be a specific medical worker by the ID card 220, a password or the like (ID number, ID number, Prompting the user to input a password, etc., and entering the personal identification number (ID number, password, etc.) at the operation unit 214, and determining that the person is a registered specific medical worker (step S350 or step S350). S380). In the unlocked state (step S350 or step S380), an operation on the operation unit 214 is processed as an effective operation by the control unit 211. The display unit 213 of the infusion pump 210 turns off the LED to indicate that the lock is released (step S350 or step S380). The infusion pump 210 in the unlocked state (step S350 or step 380) stops the communication unit 212 and simultaneously operates the counter unit 217 to count the period in the unlocked state (step S350 or step S380).

In the infusion pump 210 in the unlocked state (step S350 or step S380), the operation to the operation unit 214 is processed by the control unit 211. However, when the count in the counter unit 217 reaches a predetermined value, the control unit 211 determines that a timeout has occurred and shifts the state to the locked state (step S360 or step S370). The display unit 213 of the infusion pump 210 turns on the LED to indicate that it is in the locked state (step S360 or step S370), operates the communication unit 212, and resets and stops the counter unit 217.

In the above-described stop state (step S330) and unlocked state (step S350), when the flow rate, the expected amount, etc. are set and the start conditions of the infusion pump 210 are met, and the start button of the operation unit 214 is pressed, The infusion pump 210 transits to the liquid feeding state (step S340) and the locked state (step S370), and the identification information of the ID card 220 identified as the above-described unlocker is the operating state of the infusion pump 210 as the person who started the liquid feeding. At the same time, it is stored in the storage unit 218. The display unit 213 of the infusion pump 210 turns on the LED to indicate that it is in the locked state (step S370), operates the communication unit 212, and resets and stops the counter unit 217.

When the stop button of the operation unit 214 is pressed in the liquid feeding state (step S340) and the unlocked state (step S380), the infusion pump 210 enters the stopped state (step S330) and the unlocked state (step S350). Transition. The display unit 213 of the infusion pump 210 turns off the LED to indicate that it is in the unlocked state (step S350). At the same time as stopping the communication unit 212, the counter unit 117 is operated and in the unlocked state (step S350). Count a certain period.

When the control unit 211 determines that an abnormality has occurred in the operation of the infusion pump 210 in the above-described liquid feeding state (step S340), the infusion pump 210 transitions to the stopped state (step S330) and the unlocked state (step S350). To do. The display unit 213 of the infusion pump 210 turns off the LED to indicate that it is in the unlocked state (step S350). At the same time as stopping the communication unit 212, the counter unit 217 is operated and the period of being in the unlocked state 350 is displayed. Count.

When the above-described unlocked state (step S350 or step S380) is entered, the identification information of the identification tag 220 acquired by the communication unit 212 is stored in the memory of the control unit 211, whereby operations on the infusion pump 210 and the drug infusion device 110 are performed. Person can be specified.

In this way, the communication unit 212 can perform short-range communication using an electromagnetic induction method and acquire identification information from the identification tag 120. Since the ID card 220 can be detected while the communication unit 212 is in operation, the medical worker simply brings the ID card 220 close to or within 10 cm of the communication unit 212 to the operation unit 214 of the infusion pump 210. Can be easily unlocked. Since the lock is automatically locked for a certain time or after the operation is completed, safety can be ensured.

As described above, the application example of the infusion pump as the drug infusion device has been described. For example, an operation by a doctor or a nurse such as a device for feeding a drug such as a syringe pump, a roller pump, or a dialysis pump is required. It can be applied to a certain device. Moreover, although 13.56MHz was demonstrated to the example as a carrier frequency of a communication part, it can apply also to the electromagnetic induction system in the frequency below 135kHz and other carrier frequencies, and the radio system in the carrier frequency of a 950MHz band and a 2.5GHz band. It is.

It is a figure which shows the external appearance structure of the infusion pump and ID card which are examples of a chemical | medical agent injection apparatus. It is a figure which shows the external appearance structure of the infusion pump and ID card which are examples of a chemical | medical agent injection apparatus. It is a figure which shows the state transition diagram of a chemical injection device.

Explanation of symbols

100 overall system,
110 drug injection device, 111 control unit, 112 communication unit, 113 display unit,
114 operation section, 115 liquid feeding section, 116 counter section, 117 power supply section,
118 storage unit 120 identification tag 121 storage unit 122 communication unit 210 infusion pump 212 communication unit 213 display unit 214 operation unit
220 ID card,
310 power OFF state, 320 power ON state, 330 stopped state, 340 liquid feeding state,
350 and 380 unlocked state, 360 and 370 locked state

Claims (6)

A communication unit that collects identification information from an identification tag that records identification information related to a medical worker, a control unit that performs a determination process of information held in the identification tag and a liquid feeding process of a drug, and a drug injection flow rate and a liquid feeding start / stop A medicine injection device having an operation part, a display part, a storage part, and a liquid delivery part for delivering a medicine;
The storage unit stores a name of a medical worker who is permitted to operate, and when the medical worker brings an identification tag close, the acquired identification information is the specific medical worker who is permitted to operate. When the control unit determines, the control unit accepts an operation input from the operation unit. The medicine according to claim 1, wherein the operation of the medicine injection device is enabled, and then the medicine feeding start operation is performed so that the control unit does not accept an operation input from the operation part. Injection device. A counter unit,
When the operation of the medicine injection device is enabled, the control unit does not accept an operation input from the operation unit after a certain period of time has elapsed since the counter unit became operable. Item 3. A drug injection device according to Item 1 or 2. 4. The display unit according to claim 1, wherein the display unit includes a display of the state of the drug injection device, and displays on the display unit when the control unit does not accept an input from the operation unit. A drug injection device according to claim 1. The storage unit has a storage unit that records a history of the state of the drug injection device,
The medicine injection device according to any one of claims 1 to 4, wherein identification information of the medical staff acquired by the communication unit is stored.
An identification tag used for the drug injection device according to any one of claims 1 to 5,
The identification tag is
A storage unit that records identification information about the medical staff;
A communication unit connected to the storage unit,
An identification tag characterized in that communication of identification information of the medical staff is enabled between a communication unit of the identification tag and a communication unit installed in the medicine injection device.

Images