CN108888833A - A kind of digital safety infusion device and method based on RFID technique - Google Patents

Abstract

A digital safety infusion device and method based on RFID technology, including a patient bracelet worn on the patient's hand and a medicine bottle label mounted on the infusion bottle; a pharmacy PC for obtaining and processing patient information; an RFID communication simulation module, It is used to receive the information transmitted by the PC in the pharmacy and transmit the received information to the infusion controller set on the infusion tube; the infusion controller is used to receive the information transmitted by the induction medicine bottle label and the patient's bracelet and control the dripping speed; the infusion A liquid detection sensor is installed on the top of the controller, and the liquid detection sensor transmits the detected liquid in the infusion tube to the infusion controller; the infusion tube is provided with a drip funnel, and the present invention has the characteristics of good reliability, high safety and low cost .

Description

A digital safe infusion device and method based on RFID technology

technical field

The invention relates to the technical field of medical appliances, in particular to a digital safe transfusion device and method based on RFID technology.

Background technique

With the development of society, people pay more and more attention to their own health, and major hospitals are overloaded with work. Due to work negligence, medical staff may infuse other patients' medicines or inappropriate medicines to patients when they infuse fluids, or infuse medicines. Completely forgetting to replace it will lead to blood backflow and air needle, which will directly threaten the life safety of the patient and even cause irreparable consequences.

Contents of the invention

In order to overcome the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a digital safe infusion device and method based on RFID technology, which can be connected with modern digital medical care, effectively solve problems that may occur during the infusion process, and prevent wrong liquid infusion , forgetting to change the dressing, etc., to ensure the safety of the patient's life, and has the characteristics of good reliability, high safety and low cost.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A digital safety infusion device based on RFID technology, including a patient bracelet 1 worn on the patient's hand and a medicine bottle label 2 mounted on the infusion bottle;

Pharmacy PC 3, used to obtain and process patient information;

The RFID communication simulation module 4 is used to receive the information transmitted by the pharmacy PC 3 and transmit the received information to the infusion controller 5 arranged on the infusion tube;

The infusion controller 5 is used to receive the information transmitted by the sensory medicine bottle label 2 and the patient's bracelet 1 and control the dripping speed;

The top of the infusion controller 5 is provided with a liquid detection sensor 8, and the liquid detection sensor 8 transmits the detected liquid in the infusion tube to the infusion controller 5;

A dripping funnel 14 is arranged on the infusion tube.

Described infusion controller 5 comprises the RFID card reader 7 that is used to read RFID communication simulation module 4 information and is arranged on the electromagnetic flow-stop clip 9 on the infusion tube, and RFID card reader 7 transmits the received information to setting The low power consumption microcontroller 6 inside the infusion controller 5 is used to control the switch of the buzzer 10 , the indicator light 11 and the electromagnetic stop clip 9 .

The low power consumption microcontroller 6 is provided with a switch 13 for control and a power control module 12 .

The high-frequency RFID tag contained in the patient bracelet 1 only needs to contain the UID number, and the medicine bottle label 2 contains the UID number.

The liquid detection sensor 8 is installed on the dripping funnel 14 of the infusion tube, and includes an inclined beam emitting tube 15 and a photoelectric film 16 .

A digital safe infusion method based on RFID technology. When the patient registers, the hospital issues a patient bracelet 1 representing his identity to the patient. After the diagnosis is completed, the pharmacy PC 3 obtains the patient's identity information and the medicine to be injected from the doctor's computer through the network. The drug information is converted into the corresponding UID number, and written into the infusion controller 5 through the connected RFID communication simulation module 4; The infusion controller 5 sequentially senses the medicine bottle label 2 and the patient bracelet 1, and lights up the patient identity indicator 11 and the medicine bottle matching indicator 1 on the infusion controller 5 from red to green. After all verifications are passed, the infusion controller 5 automatically Close the RFID card reader 7, the nurse connects the medicine bottle and the infusion tube, presses the dripping funnel 14, and the medicine is sucked into the infusion tube. At this time, the liquid detection sensor 8 detects the medicine, and the medicine detection indicator light 11 turns from red to green, and the electromagnetic stop The flow clamp 9 is opened, and the nurse normally performs the needle infusion for the patient; when the infusion controller 5 detects that there is no drug in the infusion tube after the infusion is completed, the electromagnetic stop clamp 9 will be closed, and the three indicator lights 11 will turn red and flash at the same time, and the buzzer 10 Report to the police, remind the nurse and open the RFID card reader 7 to close the liquid detection sensor 8, if the patient's infusion is completed, the needle is removed, and if the dressing is changed, the above process is repeated.

Beneficial effects of the present invention:

The present invention realizes the digitization of hospital infusion process through RFID technology, opens up the last mile of hospital infusion safety, the system has the characteristics of low cost, good safety and high reliability, uses digital means to standardize the infusion process, and monitors the whole process of infusion Supervision can effectively reduce medical accidents and ensure the safety of patients.

Description of drawings

Fig. 1 is a hardware structural diagram of the present invention.

FIG. 2 is a hardware structure diagram of the liquid detection sensor 8 .

FIG. 3 is a block diagram of the hardware structure of the infusion controller 5 .

FIG. 4 is a schematic circuit diagram of the infusion controller 5 .

Fig. 5 is a working flow diagram of the present invention.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings.

Referring to Fig. 1, the present invention includes patient bracelet 1, medicine bottle label 2, pharmacy PC 3, RFID communication simulation module 4 and infusion controller 5; Contains a high-frequency RFID label; the medicine bottle label 2 is a high-frequency RFID label packaged by a sticker, which can be pasted by the manufacturer during the production process or pasted on the medicine bottle by the hospital pharmacy when distributing medicines; the RFID communication simulation module 4 communicates with the pharmacy PC The machine 3 is connected to communicate with the infusion controller 5 to write the patient's bracelet information and drug information; the infusion controller 5 contains a low-power microcontroller 6, an RFID card reader 7, a liquid detection sensor 8, an electromagnetic Flow clamp 9, buzzer 10, indicator light 11, power control module 12, switch 13, etc. read the information of patient bracelet and medicine bottle label 2 sequentially within a certain period of time during infusion, and write to the pharmacy when dispensing medicine. If the data is consistent, the indicator light 11 changes from red to green, the electromagnetic stop clip 9 is turned on for normal infusion, and when air is detected in the infusion tube, the electromagnetic stop clip 9 is closed, the buzzer 10 sounds, and the indicator light 11 Turns red and blinks to pause the infusion.

The patient bracelet 1 contains a high-frequency RFID tag that only needs to include the UID number and does not need to write patient data, so the cost of the bracelet is extremely low, and it can effectively prevent data leakage and protect patient privacy.

The medicine bottle label 2 only needs to contain the UID number, which is read-only and not writeable. It adopts a high-frequency RFID label packaged with a sticker. Therefore, the cost of the medicine bottle label 2 is extremely low, and can be recycled by the manufacturer after being pasted in the production process, or can be recycled by the manufacturer. The hospital paste is used repeatedly.

The pharmacy PC 3 is networked with other PCs in the hospital, and can obtain the patient's identity and required drug data, and uniformly manage the data through a local database; the local database can be used to convert the patient's identity and drug name into a patient bracelet 1 The UID number of the UID number of the medicine bottle label 2, and write the converted corresponding group of data into the infusion controller 5 through the RFID communication simulation module 4.

The RFID communication simulation module 4 can be connected with the pharmacy PC 3 through a simulated radio frequency card and the RFID card reader 7 placed above it through a USB interface, and can be controlled by the PC to write data into the infusion controller 5 .

The infusion controller 5 includes a low-power microcontroller 6, an RFID card reader, a liquid detector, an electromagnetic stop clip 9, a buzzer 10, an indicator light 11, a power module, a switch 13, and the like.

In the infusion controller 5, the electromagnetic stop clamp 9 used in it is normally closed by a mechanical spring when there is no power supply, and only when the power supply of the infusion controller 5 is normal, the patient's identity authentication is passed, and the medicine bottle is matched It will be powered on and opened only when the certification and liquid detection certification are passed, and it will automatically reset and close in emergency situations such as power failure or failure of the infusion controller 5, which is safe and reliable.

The infusion controller 5 can be installed on the existing infusion tube without any modification to the existing equipment during use, and has strong applicability; it can be dismantled after use and recycled.

Described infusion controller 5, the indicator light 11 that it adopts is 4 red and green two-color LEDs, is respectively power indicator light, identity authentication indicator light, medicine bottle matching indicator light, liquid detection indicator light, when corresponding function is normal It is green, the indicator light is red and flashes quickly when it is abnormal, and all lights are off when a functional failure occurs, with low cost, low power consumption and high reliability.

The RFID card reader contained in the infusion controller 5 supports the ISO14443typeA protocol, which can not only complete the reading of the UID number of the patient bracelet 1 and the medicine bottle label 2, but also perform two-way data communication with the RFID communication simulation module 4 , assume the role of communication with the PC, avoid the use of a dedicated communication module, save hardware costs, and reduce the overall power consumption of the infusion controller 5 .

Described infusion controller 5, the RFID card reader that it comprises can be closed automatically after passing the authentication of patient's bracelet 1 and medicine bottle label 2UID, and turns on liquid detection sensor 8 to save electric energy.

Described infusion controller 5, the liquid detection sensor 8 that it adopts just can be opened after patient identity authentication, medicine bottle matching authentication pass, and when detecting that medicinal liquid is empty, can notify micro-controller 6 and close itself Save electricity.

Described infusion controller 5, the power control module 12 that it adopts adopts the power supply of large-capacity rechargeable battery, can provide the power supply of 2 months for infusion controller 5, can pass power indicator light 11 when power supply is less than 1/4 Remind volunteers and cut off the power after completing the current task to avoid low battery work.

As shown in Fig. 2: described infusion controller 5, the liquid detection sensor 8 that it adopts is installed on the drip funnel 14 of infusion tube, comprises an inclined light beam emission tube 15 and a photoelectric film 16, due to the light beam of refraction principle When passing through the liquid medicine (optical dense medium) and the air (optical thin medium), light spots will be generated at different positions of the photoelectric film 16 , so as to detect whether the liquid medicine is empty or not.

As shown in Figure 3: the infusion controller 5 includes a low-power microcontroller 6, an RFID card reader 7, a liquid detection sensor 8, an electromagnetic stop clip 9, a buzzer 10, an indicator light 11, Power control module 12 and switch 13; complete power management through the power control module 12, manually break through the switch 13 when not in use, the liquid detection sensor 8 is connected with the microcontroller 6 to detect whether the medicinal liquid is empty, and the RFID card reader 7 It is connected with the microcontroller 6 to read and write the medicine bottle label 2 patient wristband 1 and undertakes the communication with the PC. The buzzer 10 is connected with the micro-controller 6 to instruct the nurse to complete the infusion process and to remind when changing the dressing.

FIG. 4 is a schematic circuit diagram of the infusion controller 5 .

Referring to Fig. 5, the working process of the present invention is as follows: when the patient registers, the hospital issues a wristband representing his identity to the patient, and after the diagnosis is completed, the pharmacy PC 3 obtains the patient's identity information and the drug information to be injected in the doctor's computer through the network Convert it to the corresponding UID number, and write it into the infusion controller 5 through the connected RFID communication analog module 4; the infusion controller 5 is installed on the infusion tube. The device 5 senses the label 2 of the medicine bottle and the patient bracelet 1 in turn, and turns on the indicator light 1 of the patient identity and the matching light 1 of the medicine bottle on the infusion controller 5 from red to green. After all the verifications are passed, the infusion controller automatically turns off the RFID reading The card device 7, the nurse connects the medicine bottle and the infusion tube, presses the dripping funnel 14, and sucks the medicine into the infusion tube. At this time, the liquid detection sensor 8 detects the medicine, and the medicine detection indicator light 11 turns from red to green, and the electromagnetic stop clip 9 When the infusion is completed, the infusion controller 5 detects that there is no drug in the infusion tube, and the electromagnetic stop clip 9 will be closed, and the three indicator lights 11 will turn red and flash at the same time, and the buzzer 10 will alarm and remind The nurse opens the RFID card reader 7 and closes the liquid detection sensor 8. If the patient's infusion is completed, the needle is removed, and if the dressing is changed, the above process is repeated.

Claims (6)

1. A digital safe infusion device based on RFID technology, characterized in that it comprises a patient bracelet (1) worn on the patient's hand and a medicine bottle label (2) mounted on the infusion bottle; Pharmacy PC (3), used to obtain and process patient information; The RFID communication simulation module (4) is used to receive the information transmitted by the pharmacy PC (3) and transmit the received information to the infusion controller (5) arranged on the infusion tube; The infusion controller (5) is used to receive the information transmitted by the induction medicine bottle label (2) and the patient's bracelet (1) and control the dripping speed; The top of the infusion controller (5) is provided with a liquid detection sensor (8), and the liquid detection sensor (8) transmits the detected liquid in the infusion tube to the infusion controller (5); A dropping funnel (14) is arranged on the infusion tube. 2. A kind of digital safe infusion device based on RFID technology according to claim 1, is characterized in that, described infusion controller (5) comprises the RFID card reader that is used to read the information of RFID communication simulation module (4) The device (7) and the electromagnetic stop clip (9) arranged on the infusion tube, the RFID card reader (7) transmits the received information to the low-power microcontroller ( 6), the low-power consumption microcontroller (6) is used to control the switch of the buzzer (10), the indicator light (11) and the electromagnetic stop clamp (9). 3. A kind of digital safe infusion device based on RFID technology according to claim 2, is characterized in that, described low power consumption microcontroller (6) is provided with switch (13) and power control module for control (12). 4. A digital safety transfusion device based on RFID technology according to claim 1, characterized in that, the high-frequency RFID tag contained in the patient bracelet (1) only needs to include the UID number, and the medicine bottle The tag (2) contains the UID number. 5. A digital safety infusion device based on RFID technology according to claim 1, characterized in that, said liquid detection sensor (8) is installed on the dripping funnel (14) of the infusion tube, comprising an inclined light beam Emitting tube (15) and a photoelectric film (16). 6. The method based on the device according to claim 1, characterized in that when the patient registers, the hospital issues a patient wristband (1) representing his identity to the patient, and after the diagnosis is completed, the pharmacy PC (3) obtains the doctor's name through the network. The patient's identity information in the computer and the drug information to be injected are converted into the corresponding UID number, and written into the infusion controller (5) through the connected RFID communication simulation module (4); the infusion controller (5) is installed on the infusion tube When the nurse needs to infuse in a short time interval, use the infusion controller (5) to sense the medicine bottle label (2) and the patient’s bracelet (1) in sequence, and put the patient’s identity indicator light on the infusion controller (5) (11), the medicine bottle matching indicator light (1) turns from red to green, and after all verifications are passed, the infusion controller (5) automatically turns off the RFID card reader (7), the nurse connects the medicine bottle and the infusion tube, and presses the dripping funnel (14), suck the medicine into the infusion tube, at this time, the liquid detection sensor (8) detects the medicine, the medicine detection indicator light (11) turns from red to green, the electromagnetic stop clip (9) is opened, and the nurse performs the needle injection for the patient normally Infusion; when the infusion controller (5) detects that there is no medicine in the infusion tube after the infusion is completed, the electromagnetic stop clip (9) will be closed, and the three indicator lights (11) will turn red and flash at the same time, and the buzzer (10) will report to the police. Remind the nurse and open the RFID card reader (7) to close the liquid detection sensor (8). If the patient's infusion is completed, the needle is removed, and if it is changing the dressing, the above process is repeated.