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Hospitals in Japan, China Seek to Save Lives Via Pocketsize Reader

The facilities are using a handheld, made by BayNexus, to read passive UHF and 2.4 GHz tags and bar codes, and thus ensure patients receive the right medications.
By Paul Prince
May 17, 2013

Sanraku Hospital, in Tokyo, Japan, and the No. 3 People's Hospital, in Wuxi, China, are currently testing a smartphone-size handheld RFID reader that promises to reduce the likelihood of medication errors, thereby preventing death or injury that could result from such mistakes. The reader, along with the RFID patient wristbands that both hospitals are employing, was developed by BayNexus, a three-year-old developer of radio frequency identification and wireless solutions focused on health-care applications, as well as other vertical markets.

Jason Liu, the company's president, CEO and cofounder, spent the past three years working with Sanraku Hospital to develop the BayNexus BN-HH-G2 handheld reader, and the past two years partnering with the No. 3 People's Hospital. Both facilities, he explains, sought a small, easy-to-use device with which nurses could quickly and accurately identify patients and medication, and thereby "prevent deaths due to injection of wrong medication, to avoid any medication error."

The BN-HH-G02 is available with a choice of three different RFID readers, for interrogating either high-frequency, ultrahigh-frequency or 2.4 GHz passive tags.

The resulting device is a slim handheld—measuring 5.4 inches by 2.7 inches by 0.67 inch (137 millimeters by 68 millimeters by 17 millimeters)—that can easily slip into the pocket of a nurse or other health-care work. The BN-HH-G02 is available with a choice of three different RFID readers: high-frequency (HF), complying with the ISO 14443 and ISO 15693 standards; ultrahigh-frequency (UHF), complying with the ISO 18000-6C (EPC Gen 2) and ISO 18000-6B standards; or 2.4 GHz, complying with the ISO 18000-4 standard. Other features are a linear image bar-code scanner for reading 1-D and 2-D bar codes, a 4.3-inch touchscreen, a GPS unit, a 5-megapixel camera and three types of wireless connectivity: cellular (GSM/GPRS), Wi-Fi (IEEE 802.11 b/g/n) and Bluetooth 4.0. Earlier this year, the BayNexus reader was chosen as a finalist for RFID Journal's Best in Show award (see Finalists Unveiled for Seventh Annual RFID Journal Awards).

Sanraku Hospital is using a version of the BN-HH-G2 that reads 2.4 GHz passive RFID tags, Liu explains, owing to concerns in Japan that a reader operating anywhere within the UHF band (860 to 960 MHz) might cause RF interference with certain types of medical equipment used in that country. The 270-bed hospital utilizes the reader in conjunction with BayNexus' 2.4 GHz RFID patient wristbands. The solution's benefits, Liu explains, include not only medical error prevention, but also real-time visibility, improved billing accuracy and increased work efficiency, freeing up nurses so they can devote more time to patient care. To verify that an individual is receiving the proper medication, a nurse uses the BN-HH-G2 handheld to read the RFID tag embedded in the sterilizable wristband, and then scans the bar code printed on the drug's container.

This handheld provides real-time confirmation and updates regarding patient information stored in the hospital's electronic medical record (EMR) system. One of the most important aspects of this project, according to BayNexus, is injection safety. At the bedside, immediately prior to injection, the drugs are compared with the latest prescription information stored in the EMR, by simply scanning the bar code printed on the drug's container and reading the ID number encoded to the RFID tag on the patient's wristband. This system is connected with the hospital's injection drug inventory and traceability system, which reflects injection drug picking and mixing data entered into the system, also via the handheld. For phase one of Sanraku's RFID implementation, BayNexus reports, the hospital aims to promote patient safety while reducing drug inventory shrinkage. During phase two , the facility plans to expand its usage of BayNexus' RFID technology to manage medical equipment.

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