EPC RFID Tag with permission of SMARTCODE Corp...
Image via Wikipedia

RFID tags (Radio Frequency Identification) are used to track assets using a radio signal which can be received and used to determine the exact location of the asset to which they are attached.  Modern developments have now made it possible for RFID tags to be much smaller and even more effective in their tracking function while the cost has also dramatically dropped.  This allows FRID tags to be used in ever more situations and the medical field is a perfect example of how RFID tags can be used to track multiple assets and provide enhanced security and identification protection.

Medications, specimens, laboratory samples and even patients can now be tracked – and tracking time sensitive assets, such as an organ for transplantation, or a patient who needs to be continuously monitored, say someone suffering from Alzheimer’s Disease, is now practical and cost effective.

RFID tags also possess the ability to contain information, including patient data, but also information on dates of manufacture, application, dosage and warning information.  RFID tags also provide the ultimate level of authentication; many medicines used in developing countries are in fact counterfeited by unscrupulous criminals looking to make huge sums of money which many drugs command on the market.  An RFID tag is almost impossible for counterfeiters to replicate, so the presence of such a tag is a good indicator that the medicines are in fact genuine.

RFID tags come in two main forms: a short-range tag, known as an HF tag (High Frequency), and UHF tag (Ultra High Frequency) with a longer scanning range.  HF tags are suitable for use in tracking medical samples and specimens such as blood and tissue samples because they work effectively in proximity to liquids and human samples.  UHF tags are affected by close proximity to liquids and can be affected by close proximity to tissue samples (the human body is primarily made up of water), and it is also important for proper “tuning” of UHF tags in a medical environment because they are also affected by proximity to metals and radiation (some things which are commonly found in hospitals and medical laboratories).

RFID tags being used for patient tracking has caused some controversy in terms of the invasion of patient privacy, however, where patients are at risk to themselves, such as those suffering from dementia or temporary mental incapacity, they are invaluable for securing identification and monitoring patient status.  Certainly, one use of RFID tags appears to have gained the seal of approval from patients when used to track newborn infants – there can be no doubt that the baby you take home from the hospital is the child which you gave birth to with no possibility of hospital mix-ups!

Patient safety can also be significantly enhanced using RFID tags; for instance, when you need to locate a crash cart (a defibrillator) for a patient in cardiac arrest, you need to find it fast.  RFID tags provide the ability to accurately and quickly pinpoint the location of the cart which can be brought into action much faster for patient assistance.

In terms of hospital administration, RFID tags help to automate inventory management and reduce the administration costs of managing a broad range of sometimes, extremely expensive items, many of which are used as commodity stock items but which are in fact, extremely expensive.  Simple scalpels for instance, are a commonly used item in hospitals and medical institutions, however they are very costly and need to be tracked and managed effectively to avoid wasting money.  RFID tags open the door to significant cost savings by ensuring all instruments and equipment are accounted for at the end of an operation or medical procedure.

Asset Labels Tracking the War on Terror

In 2003, the U.S. Department of Defense (DoD) instituted an asset tracking program in order to track DoD property under the control of external contractors.  This arose amidst claims of of contractors misappropriating assets, employing wasteful practices and generally charging exorbitant sums for work which should not have been charged.  Some readers may recall the issues associated with $200 hammers or thousand dollar toilet seats which plagued NASA, and in the realm of defense spending, there were many instances of inappropriate billing by contractors which was met by the extremely large budget of the Dod and ultimately, the taxpayer was footing the bill.

The Unique Identification program (UID) ensures that government property and assets are all marked by a special asset tag – the individual asset is allocated an Individual UID (known as the IUID – the military are renowned for their use of acronyms) and this in turn produces a Unique Identification Identifier (UII).  All equipment delivered to the DoD by an external supplier must bear a UII which comes in the form of a 2D matrix (a barcode), and this in turn feeds into the billing program of the external contractor which must be managed and presented in a format which meets DoD standards.

With the “War on Terror” commencing in 2003, the DoD is taking delivery of equipment throughout the sphere of operations as well as its main logistics deployment establishment established in Richmond, VA.  There are numerous problems associated with ensuring that equipment is delivered and gets to where it is needed most, especially for those operations involving combat and security duty in high risk areas such as Afghanistan.  At the same time, while the focus is on combat and operational effectiveness, it is very difficult to effectively manage equipment and supplies which are delivered direct into the sphere of operations by external contractors.  When you are getting shot at, you are less likely to be concerned with accounting for equipment!

The UII tags remove the need for such intensive management by personnel in the field, and simplifies the entire tracking and inventory management process.  The program has already resulted in savings worth several billions of dollars in the 6 years which it has been in operation, and has also been used as the  basis for billing adjustments with external contractors who otherwise would have billed for equipment and supplies not delivered as well as reversing overcharges.

One application of the UID program has seen enormous savings in the area of containerization.  The  DoD is the largest customer for cargo containers in the Middle East area with enormous amounts of cargo being transported and stored at a variety of ports and externally managed supply centers prior to onward transportation to the “front”.  Cargo containers are extremely expensive pieces of kit, and they are not in fact owned by the DoD – the containerization system relies upon them being leased or rented (typically for a $2,000 per week).  These containers are spread around a huge geographical area, greater than the size of the U.S., and in a large number of disparate locations.  It is vital to track them and establish which are in use and which are nt being used – by ensuring that idle use is minimized, and advising the owner of non-use, significant savings have been incurred by not paying for containers which are in fact, sitting idle in the owners depot or are still on the lease book but in fact, are not being employed.

Related articles by Zemanta
Reblog this post [with Zemanta]

Related posts