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RFID tags may be implanted in patients' arms

Michael Kanellos CNET News.com

Published: 28 Jul 2004 12:00 BST

VeriChip, the company that makes radio-frequency identification -- RFID -- tags for humans, has moved one step closer to getting its technology into hospitals.

The Federal Drug Administration issued a ruling on Tuesday that essentially begins a final review process that will determine whether hospitals can use RFID systems from the company to identify patients and/or permit relevant hospital staff to access medical records, said Angela Fulcher, vice president of marketing and sales at VeriChip.

VeriChip sells 11-millimetre RFID tags that get implanted in the fatty tissue below the right tricep. When near one of Verichip's scanners, the chip wakes up and radios an ID number to the scanner. If the number matches an ID number in a database, a person with the chip under his or her skin can enter a secured room or complete a financial transaction.

"It is used instead of other biometric applications," such as fingerprints, Fulcher said.

The approval process does not centre on health risks or implications, Fulcher said. VeriChip can already sell implantable RFID chips in the United States for standard security applications and the financial market. The company's basic technology has also been used in animals for years.

Instead, the FDA may mostly examine privacy issues, Fulcher indicated. In other words, the agency will look at whether the technology will lead to situations where confidential information can get improperly disclosed.

Technically, the FDA on Tuesday issued a letter stating that there were no equivalent products on the market. This allowed VeriChip to then seek a de novo, or additional, review. The application process started in October 2003.

The Italian Ministry of Health kicked off a six-month trial of the chips for hospitals in April.

VeriChip, a division of Applied Digital Solutions, generated headlines worldwide recently with the announcement that the Attorney General of Mexico implanted one of the small company's RFID tags in his arm.

Fulcher said the basic technology has been around for a while. For 15 years, Digital Angel, a sister company under the Applied corporate umbrella, has sold thousands of tags for identifying animals. The US Department of Energy employs Digital Angel's technology to monitor salmon migration. Several implants have been placed in household pets and livestock.

"We believe the tags can last 20 years," Fulcher said.

The idea for employing the tags to identify humans came after the horror of the 11 Septemer, 2001, attacks on the World Trade Centre and the Pentagon, Fulcher said. Richard Seelig, vice president of medical applications at Applied, saw on TV how firemen were writing their badge numbers on their arm with pen so they could be identified in the event of a disaster.

He inserted Digital Angel tags in his body and told the chief executive that they worked. VeriChip was born. In June, the company hired Next Level and Motorola alum Kevin Wiley as chief executive.

About 7,000 VeriChip tags have been sold, and approximately 1,000 have been inserted in humans. The chips only work with VeriChip's scanners. Along with scanners, VeriChip also sells complementary security systems for opening or shutting doors after the identification process.

So far, most of the sales have been outside the United States. Along with its attorney general's implant, Mexico has evaluated the chips as a way to better identify children in the event of a kidnapping. The Baja Beach Club in Spain has used them as electronic wallets to buy drinks. Sales have also taken place in Russia, Switzerland, Venezuela and Colombia.

"The applications that have taken hold at this point have been international so far," Fulcher said.

But FN Manufacturing, a South Carolina gun maker, is evaluating the technology for "smart guns," which contain sensor-activated grips so that only their owners can fire them.

The chips themselves are inserted into humans and animals with a syringe. When emerging from the syringe, the chips get coated with a substance called BioBond, which insulates the chip from the body and allows it to adhere to local tissue. If removed, it becomes inactive.

Privacy has been an issue for the company, but the complaints have actually begun to die down. "The pushback is less and less," Fulcher said.

The chip is an ID tag, Fulcher emphasised. When a person with an embedded chip passes near a scanner, the dormant chip simply wakes up and issues an ID number. The administrator of the security systems and databases determines how the information is used. A person has to stand within a few feet of a scanner for the tag to wake up. Thus, the tags can be used to follow someone's steps only when they are near scanners. The company's hand scanners can ping chips about 12 inches away, although the devices for counting salmon are 10 to 12 feet away from the fish.

Also, VeriChip is working on an implant that will contain a Global Positioning System. Such a device would allow an individual with a scanner to pinpoint someone's position on the globe.

The lab device, however, is relatively large right now, about the size of a pacemaker.