Specific application of RFID technology in medical management

In recent years, drug safety issues have occurred frequently. In 2006, there were several drug suspension incidents in my country: the Ministry of Health urgently suspended Xinfu, and the State Food and Drug Administration (SFDA) suspended Houttuynia cordata injections, etc., because of problems , Counterfeit and inferior medicines have caused harm to people's lives. According to the report of the World Health Organization, the proportion of counterfeit medicines in the world has exceeded 10%, and the annual sales of counterfeit medicines in the world have exceeded 32 billion US dollars, of which 60% of counterfeit medicines are in developing countries. One-third of the world's annual deaths are due to irrational drug use. About 7,000 Hospitalized patients in the U.S. die each year from taking the wrong medicine. According to the data provided by the Chinese Pharmaceutical Association, in my country, at least 200,000 people die each year due to the use of wrong medicines and improper medications. cause.

Therefore, RFID technology plays an important role in tracking and monitoring drugs and equipment, and rectifying and regulating the medical supplies market. According to the "Global Health and Medicine Application Market" report, the revenue of RFID in the health and medicine application market in 2011 will grow to 2.3188 billion US dollars, with a compound annual growth rate of 29.9%. Among them, the compound annual growth rate of the drug tracking market will be close to 32.8%, and the compound annual growth rate of the medical equipment tracking market will reach 28.9%.

At present, my country's drug circulation supervision mainly adopts electronic supervision codes. The State Food and Drug Administration requires manufacturers and distributors of key drugs to complete the code assignment and access to the network before October 31, 2008. Those who do not use the unified identification of the drug electronic supervision code are not allowed to sell. The electronic supervision code identification consists of 20 digits, a one-dimensional barcode and prompt information. The electronic supervision code is the identification given to each item by the Chinese government's electronic supervision of products. It is the ID Card of the item, but the electronic supervision code has inherent technical defects:

(1) Low safety performance. The electronic supervision code is a one-dimensional barcode, which has low technical complexity, little difficulty in counterfeiting, and low security performance.

(2) Information cannot be changed. The information of the electronic supervision code can only be read by printing, but cannot be written, and the data information contained in it is fixed and cannot be changed.

(3) Information reading speed is slow.

(4) It belongs to visual communication and has poor anti-interference ability.

RFID has great application potential in drug anti-counterfeiting and tracking and supply chain management. RFID technology is used to track each link of each drug in sales and record it in the database in real time, which greatly guarantees the safety of drugs in circulation. RFID drug management aims to use high-tech to achieve safety supervision of special drugs and chemical reagents, prevent counterfeit drugs, expired drugs, and prohibited drugs from entering the market, promote "doctors and patients" to use drugs correctly, and curb the bad practices of driving up drug prices and monopolizing the drug market. The phenomenon occurs, improving the monitoring of drug transportation and storage environmental conditions; drug manufacturers can also dynamically monitor drug flow and sales through this system, so as to adjust the production and inventory of drugs and improve their operating efficiency.

Pharmaceutical companies, as manufacturers of medicines, are responsible for affixing the RFID tags of medicines on the packaging. There are two types of drug RFID electronic tags, one is the electronic tag attached to the small drug packaging box of each sales unit, and the other is the UHF tag attached to the packaging carton.

Drug wholesale enterprises, drug retail enterprises, medical institutions, etc. need to be equipped with special RFID read and write equipment. Pharmaceutical distribution companies conduct product authenticity identification and circulation information writing operations during product entry and exit.

The drug supervision department can use the handset to conduct on-site inspection and identification of the drugs in storage and on sale in the drug circulation related units. Manage the identity registration and issuance of digital certificates of pharmaceutical manufacturers, pharmaceutical distribution enterprises, pharmaceutical retail enterprises, and medical institutions. The RFID Readers used by various enterprises and institutions are also authenticated and managed through appropriate mechanisms. When consumers buy medicines in hospitals or pharmacies, they can identify the authenticity of medicines through the UHF RFID read-write equipment or Library-self-service-borrowing-and-returning-machine-source-manufacturer-UHF-touch-screen-borrowing-and-returning-machine.html target='_blank'>self-service identification terminals in hospitals or pharmacies.

Application solutions of RFID technology in medical drug management:

1. Establish a drug management platform using RFID technology and network technology;

2. Construct the overall plan of drug management;

3. Network data reading and writing equipment composed of RFID technology and network single-chip computer;

4. System software writing;

5. The frequency settings adopted by the radio frequency identification cards used in different special medicines.

RFID electronic tags are implanted in drug packaging, and when the drug leaves the factory, it is registered with the drug management database through RFID technology, and UHF RFID reading and writing equipment is provided in the hospital or pharmacy for doctors and patients to check the authenticity of the drug, the date of delivery or read the method of use of the drug and precautions. When the drug is sold and used, the package will be unsealed and the ID number of the drug will be canceled. The drug manufacturer can use this system to grasp the flow and sales of the drug in order to adjust the production plan. Especially for the management of special drugs or illegal drugs is more important.

The working process of RFID technology in medical drug management:

1. The reader sends out a radio frequency signal of a certain frequency through the antenna;

2. When the RFID tag enters the magnetic field, it generates an induced current to obtain energy, and sends information such as its own code to the reader;

3. The reader collects information and decodes it;

4. The RFID reader sends the information data to the host computer for processing.

RFID has the following specific applications in the medical field:

UHF RFID Medical Consumables Cabinet

The consumables cabinet uses RFID technology to number each type or even each drug, and combines the UHF reader and the antenna in the cabinet to obtain the location of the item, and realize the automatic identification of the items in the RFID medical consumables cabinet. Access, inventory and monitoring processes. Automatically scan and identify consumables information, track the entire supply process of drugs, monitor from application, purchase, acceptance, collection, use and other processes, covering the entire use process of drugs, providing accurate planning, statistics and replenishment for hospitals data support.

Pharmaceutical warehousing and outbound management

When the medicine is in and out of the warehouse, the UHF RFID technology can realize batch data collection and quantity check, which replaces the previous document operation. The operation data information is uploaded and shared with the system in real time under the wireless environment, which improves the operation efficiency and improves the operation efficiency. The accuracy improves the information level of the logistics center.

Medical spam management

Through the cooperation of different hospitals and transportation companies, a traceable medical waste tracking system is established with the help of RFID technology to realize the full tracking of medical waste transported to the treatment plant and avoid illegal treatment of medical waste. At present, Japan has launched research in this area and achieved good results.

blood information management

Applying RFID technology to blood management can effectively avoid the disadvantages of small barcode capacity, realize non-contact identification, reduce blood pollution, realize multi-target identification, and improve data collection efficiency. Last year, it was reported that a research institute in the United States was testing a UHF RFID solution that used UHF readers and RFID tags to track all samples and complete inventory. The institute mainly focuses on testing hardware components, including numerous UHF RFID electronic tags and UHF handheld terminals. Meanwhile, the team is exploring whether it can be scanned without opening the freezer.

Medical device and drug traceability

Accurately record the identity of items and patients through RFID technology, including basic information of product use, specific product information involved in adverse events, regions where products with the same quality problems may occur, patients involved in problem products, and location of problem products that have not been used, etc. information, trace back to bad products and related patients, control all unused medical devices and drugs, and provide strong support for accident handling.