WO2000043941A1 - Method, device and system for facilitating entry and update of multi-source medical information - Google Patents

Method, device and system for facilitating entry and update of multi-source medical information Download PDF

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Publication number
WO2000043941A1
WO2000043941A1 PCT/US2000/001427 US0001427W WO0043941A1 WO 2000043941 A1 WO2000043941 A1 WO 2000043941A1 US 0001427 W US0001427 W US 0001427W WO 0043941 A1 WO0043941 A1 WO 0043941A1
Authority
WO
WIPO (PCT)
Prior art keywords
medical
information
unit
individual
system
Prior art date
Application number
PCT/US2000/001427
Other languages
French (fr)
Inventor
Edward E. Klein
Original Assignee
Meditech Information Systems, Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US23386999A priority Critical
Priority to US09/233,869 priority
Priority to US35675099A priority
Priority to US09/356,750 priority
Application filed by Meditech Information Systems, Ltd. filed Critical Meditech Information Systems, Ltd.
Publication of WO2000043941A1 publication Critical patent/WO2000043941A1/en

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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F19/00Digital computing or data processing equipment or methods, specially adapted for specific applications
    • G06F19/30Medical informatics, i.e. computer-based analysis or dissemination of patient or disease data
    • G06F19/34Computer-assisted medical diagnosis or treatment, e.g. computerised prescription or delivery of medication or diets, computerised local control of medical devices, medical expert systems or telemedicine
    • G06F19/3418Telemedicine, e.g. remote diagnosis, remote control of instruments or remote monitoring of patient carried devices
    • GPHYSICS
    • G16INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16HHEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H10/00ICT specially adapted for the handling or processing of patient-related medical or healthcare data
    • G16H10/60ICT specially adapted for the handling or processing of patient-related medical or healthcare data for patient-specific data, e.g. for electronic patient records
    • G16H10/65ICT specially adapted for the handling or processing of patient-related medical or healthcare data for patient-specific data, e.g. for electronic patient records stored on portable record carriers, e.g. on smartcards, RFID tags or CD

Abstract

The present invention provides a system for updating multi-source medical information on a medical information unit immediately upon a patient's receiving medical service. The system typically includes a plurality of medical information units (308), one per patient, each medical information unit configured to identify a patient and to include at least certain medical information; a plurality of portable patient I/O units, each co-located with the patient (302); and a central database having an interface with the portable patient reader/writer units and a plurality of medical input databases (104-112).

Description

METHOD, DEVICE AND SYSTEM FOR FACILITATING ENTRY AND UPDATE OF MULTI-SOURCE MEDICAL INFORMATION

This is a continuation-in-part of USSN 09/233,869 filed on January 20, 1999.

BACKGROUND OF THE INVENTION

1 . Field of the Invention

This invention relates to a method, device and system for

facilitating entry and updating of multi-source medical information, and

more specifically, a method, device and system for facilitating entry and

updating multi-source medical information using a medical information

unit. Additionally, this invention relates to information carrying units

which utilize RFID technology for providing information about wearers of

the unit.

2. Description of the Related Art

Smart cards are generally plastic cards having an embedded

integrated circuit that is used for storing information. Plastics used for

substrates for the smart card typically may include materials such as

ethyl-vinyl-acetate (EVA) as a soft copolymer located on an inside surface

of the card and a tough polyester located on the outside surface. A hot

melt adhesive such as EVA, phenolic butyral or silicone adhesive is

generally used to seal the inner layer of the smart card to the tough outer

polymeric layer which is typically polyester, mylar, polyimide or

polyethylene. The above examples may be used to provide a thin, flexible

smart card. Chips are generally attached to circuitry on the substrate by

soldering, ultrasonic single point bonding, thermo-compression, or

conductive adhesive.

There are two types of smart cards: contact smart cards and

contactless smart cards. Contact smart cards must be inserted into a

smart card reader in order for the stored information to be accessed. For

example, a contact smart card may employ an integrated circuit on a small

gold plate about one-half inch in diameter (a chip) on the front of the card.

When the smart card is inserted into the smart card reader, the gold plate

portion of the smart card makes electrical contact with electrical

connectors of the smart card reader so that data may be transferred to

and from the chip. Typical uses of smart cards are identification of user,

serving as electronic keys for access, controlling of access to information,

etc.

A contactless smart card has an embedded electronic microchip and

an antenna. When the contactless smart card is passed near an antenna

or coupler, the contactless smart card communicates with the antenna or

coupler using a radio frequency signal. Thus, the contactless smart card

does not require direct contact with an electrical circuit in order to

function. Typical uses of the contactless smart card are for processes that

must be accomplished quickly, such as toll collection or mass-transit fund

collection.

When a victim enters an emergency room in an unconscious state,

the medical personnel may be unaware that the victim is carrying a smart card with this information. Also, where an outside laboratory has run

medical tests on the victim, the outcomes of the tests from the outside

laboratory may not be in the victim's file, and such information may be

critical to treatment of the victim. The medical information needs to be

convenient to access, available spontaneously with a minimum of effort,

accurate and reliable. In addition, the system needs to be able to

download medical information for an individual from a variety of sources

to provide an updated medical profile of the individual.

Thus, there is a need for a method, device and system for

facilitating an update of multi-source medical information.

SUMMARY OF THE INVENTION

The present invention provides a system for entering and updating

multi-source medical information on a medical information unit

immediately upon an individual's receiving medical service, or during the

time that a patient is resident at a medical facility, including: a plurality of

medical information units, one per individual or patient, each medical

information unit configured to identify the individual or a patient and to

include at least certain predetermined personal and medical information

concerning the individual and/or patient; and a plurality of portable

individual and/or patient input/output units, each co-located with the

individual and/or patient, for inputting and displaying information from the

medical information unit of the individual and/or patient. Each of the

portable input/output units may include an interface with a central

database for downloading to, and retrieving information, for the individual and/or patient, from a central database. The database can have an

interface with a plurality of input databases including, for example, at

least one of: a pharmacy database, a medical laboratory test facility

database, a billing database or an insurance database. Typically, a central

database can be accessible by at least one network. The medical

information unit may be one of: a smart card, a pendant, or a "dog tag".

The medical information unit can typically be attachable to an

identification bracelet of a patient. The medical information unit may also

be a pendant, wrist watch or an i-'entification bracelet and a radio

frequency identification unit.

In one embodiment, the present invention provides a system for

facilitating a medical information entry and update for an individual

arriving in a medical treatment area using multi-source medical

information, including: at least two sensor arrays, arranged to provide a

sensing field for an individual arriving at a medical treatment area, for

indicating whether the individual is carrying a medical information unit;

and an updating information unit for combining medical information for the

individual on the medical information unit with information for the

individual in a database to generate an updated medical profile of the

individual. The medical identification unit may be one of: a smart card, a

radio frequency tag or a pendant. The database is typically arranged to

receive and store, automatically, information updates for the individual

from a plurality of sources. The information entries and updates from the

plurality of sources may include information for the individual from at least one medical laboratory and/or information for the individual from at least

one physician's office.

In one embodiment, the present invention provides a method for

facilitating a medical information entry and/or update for an individual

arriving in a medical treatment area using multi-source medical

information, including the steps of:

using at least two arrays of sensors forming a sensing field to identify

whether the individual is carrying a medical information unit; and where

the individual is carrying a medical information unit, combining medical

information for the individual from the medical information unit with

information for the individual in a database to generate an updated

medical profile of the individual. The method may further include

receiving and storing date and information, automatically, by the

database, information entries and/or updates for the individual from a

plurality of sources. The information entries and/or updates from the

plurality of sources may include information for the individual from at least

one medical laboratory and/or information for the individual from at least

one physician's office.

In one embodiment, the present invention provides device for

facilitating a medical information update for an individual arriving in a

medical treatment area using multi-source medical information, including:

an alarm unit for indicating whether the individual is carrying a medical

smart card; or a device information unit, coupled to the alarm unit, for,

where the individual is carrying a medical smart card, combining medical information for the individual on the medical smart card with information

for the individual in a to generate an updated medical profile of the

individual. The database is generally arranged to receive and store,

automatically, information entries and/or updates for the individual from a

plurality of sources. The information updates from the plurality of sources

may include information for the individual from at least one medical

laboratory and/or information for the individual from at least one

physician's office.

In one embodiment, the present invention provides a device for

using a medical smart card or combination card to generate a medical

identification bracelet for an individual, including: a reader unit for reading

a name of the individual from the medical smart card; and a bracelet

generating unit for generating the medical identification bracelet with the

name of the individual printed thereon. The device may further include a

unit for generating an electronic information unit for the medical

identification bracelet. The electronic information unit may include

updatable predetermined medical information for the individual.

In one embodiment the present invention provides a device for

using a medical smart card to generate a medical identification unit for an

individual, including: a reader unit for reading a name of the individual

from the medical smart card; and a medical identification generating unit

for generating a medical identification unit that includes electronic

identification of the individual. The medical identification unit may include updatable predetermined medical information for the individual. The

medical identification unit typically is one of: a bracelet or a pendant.

In one embodiment, the present invention provides a system for

entry and updating multi-source medical information on a medical

information unit immediately upon a patient's receiving medical service,

including: a plurality of patient medical information units, one per patient,

each medical information unit configured to identify a patient and to

include at least certain predetermined medical information concerning the

patient; a plurality of provider medical information units, each medical

information unit configured to identify the provider and the individual

providing a provider service; and a plurality of portable input/output units,

for inputting and displaying information from at least one patient medical

information unit and from at least one provider medical information unit.

Each of the portable input/output unit generally includes an interface with

a database for downloading to, and retrieving information, for the at least

one patient, from the database. The database typically has an interface

with a plurality of input databases including at least one of: a pharmacy

database, a medical laboratory test facility database, a billing database or

an insurance database. A central database is generally accessible by at

least one network. The medical information unit may be one of: a smart

card, a pendant or a "dog tag". The medical information unit is generally

attachable to an identification bracelet of the patient. The medical

information unit may be one of a pendant or a radio frequency

identification unit. At least one patient medical information unit and at least one provider medical information unit are typically utilized in

accordance with a predetermined scheme to provide security for the

medical information. When the provider service is provided, an identity of

an individual providing the provider service, an identity of the patient, and

a time and date of the provider service are generally entered on the

medical information unit. At least one of the portable input/output units

may be a computer with two processors that is used to segment input

data in accordance with a predetermined scheme. The input/output unit

can be a portable reader/writer capable of reading bar codes, radio

frequency (RF) and dual cords.

Bar code taps can be attached to medication in a hospital pharmacy

and matched to a patient's medical information unit for confirmation. The

medical information unit can also be used to ensure proper meal service in

an analogous manner.

In one embodiment of the invention, an RF interface board capable

of reading both contact and contactless smart cords automatically can be

employed. A transceiver, e.g., a 900Mhz transceiver can be used to

transmit data to a database when the transceiver is employed in

conjunction with a portable reader/writer. The transceiver will enable a

user to access remote databases, PCs or mainframes. In addition to

portable terminals, it is contemplated that various connected organizers,

pen based electronic organizers, palm pilots or similar devices can be

employed to input and/or receive data about an individual and/or patient. Programs similar to or analogous to the Microsoft CE operating system

can be employed.

With the present system, accountability in medical services can be

assured. The administration of proper medication or medical services or

the serving of proper meals can be monitored using the instant system.

The present invention further relates to an information carrying unit

which utilizes RFID technology for providing information about wearers of

the unit and the use of the unit to identify and provide proper medical

services to an individual. In general, the information carrying unit

comprises a substrate capable of being worn by, attached to or imbedded

within a carrier. The information is installed on an appropriate memory

chip which is attached to the information carrying unit. It is envisioned

that a possible use for the information carrying unit would be as a uniform

identification system.

The present information carrying unit can be used in non-

communicative situations. An individual carrier of the information carrying

unit can be identified and vital information about the individual carrier can

be accessed in emergency situations. Access may be by use of the

input/output devices and portable readers described above. The

information could be accessed from the information carrying unit in a

secure manner by authorized personnel and information would be stored

on the information carrying unit in a memory chip attached to the unit.

Possible forms for the unit could be for example, a bracelet, a pendant

and wrist watch. It is envisioned by the information carrying units could be used to

provide vital information to care providers in EMS, hospital emergency

rooms, nursing homes or nursery schools. As also described above, the

present unit could provide a system to ensure accountability by identifying

both a service provider and the recipient of the service as well as the time

and date of the services which were provided. In nursery schools,

attendance records and special needs of children could be maintained on

the present RFID information carrying unit.

Errors in services provided to patients could be avoided by the

instant RFID information carrying unit. Hence, confusion in meals,

medication or procedures can be avoided.

The present invention also provides an improvement in card tags.

Such tags are worn by employees such as in hospital meal services and

pharmacy with the present RFID information carrying unit can provide

employee identification and access to an order entry computer system.

One an order is entered the RFID information carrying unit can be used to

verify that the order is correct.

RFID information units can be used for identifying employees in the

time-and-attendance management, in addition to access control. Passive

RFID "proximity" cards and tags can record time in and out data and

permit positive employee ID for contact with individuals with access to

secured areas.

The RFID can provide basic personal health information. This

includes, for example. Medical history, shots, allergies and specific medical problems as well as current medication. When appropriate, an

individuals medical records can be accessed at the physician's office in

the normal visit.

An RFID in the form of a card or pendant can be employed with

basic information. Readers to access the information could be present in

all physicians, offices, ambulances, police cars, emergency medical

vehicles and fire department vehicles. The obvious benefits for quickly

obtaining vital information becomes apparent with the additional

information that may assist in identifying existing medical and/or

identification problems.

Additional information not found on other medical ID cards could be

incorporated, such as, for example:

1 . EKG for comparative evaluation analysis

2. DNA section for positive identification

3. Organ donor consent form

4. Do Not Resuscitate

5. Global Position Location Chip

In the event of hospitalization, the RFID enables the transfer of

patient information through the treatment process with precision and

accountability. The events that would become an electronic record would

follow the patient through the following procedures:

1 . Admissions (normal or emergency)

2. Radiology if required

3. Surgery if required 4. Recovery if required

5. Patient contracts by:

a. nurse

b. physician

c. pharmacy

d. meal attendants

e. therapists

6. Release

In order to update information, the attending physician, nurse,

therapist or qualified attendant may access the individual memory chip

with a RF reader writer of the types described above. The time, date and

care providing identification would be recorded on the memory chip.

Other features and advantages of the present invention will become

apparent from the following description of the preferred embodiments of

the present invention which are shown in the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram of one embodiment of a system in

accordance with the present invention.

FIG. 2 is a flow chart showing one embodiment of steps in

accordance with the method of the present invention.

FIG. 3 is a block diagram of one embodiment of a device for

facilitating a medical information update in accordance with the present

invention. FIG. 4 is a block diagram of another embodiment of a system in

accordance with the present invention.

FIG. 5 is a block diagram of another embodiment of a device in

accordance with the present invention.

FIG. 6 is a block diagram of another embodiment of a device in

accordance with the present invention.

FIG. 7 is a diagrammatic representation of another embodiment of a

system for updating multi-source medical information on a medical

information unit immediately upon a patient's receiving medical service in

accordance with the present invention.

FIG. 8 is a diagrammatic representation of an embodiment of a

system for updating multi-source medical information on a medical

information unit immediately upon a patient's receiving medical service

including intravenous treatment in accordance with the present invention.

FIG. 9 is a block diagram of another embodiment of a system in

accordance with the present invention.

FIG. 10 is a diagrammatic representation of an embodiment of the

system of the present invention shown with greater particularity including

exemplary information carrying units.

FIG. 1 1 is a block diagram of an embodiment of a system in

accordance with the present invention in which a dual card reader is

utilized. DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

The cost for manufacturing a smart card is slightly more than ten

times the cost for the manufacture of a credit card with a magnetic strip

on the back. However, smart cards have the benefit of providing

centralization of information since they have more functionality than credit

cards, which operate without use of a user code recognition system.

Thus, the greater functionality and security of the smart cards make such

cards a preferred choice for medical information storage.

FIG. 1 , numeral 1 00, shows a block diagram of a system in

accordance with the present invention. A medical treatment facility 102

has an entrance room 1 04 with a plurality of sensors 1 06 arranged on

both sides of the entrance to detect the presence of a radio frequency tag

on a medical smart card when an individual having a medical information

unit with a radio frequency (RF) tag passes through the sensing field

between the sensors.

The RF tag contains in its memory an information code identifying

its owner and any other selected information. For added security, certain

information may be encrypted. Typically, however, information such as

the name of the individual, blood type, presence of a diabetic condition

and the like will typically not be encrypted.

In one embodiment, an encryption key may be a software code that

is only available to the issuer of the medical smart card. The de-

encryption key may be public so that anyone having the de-encryption key

may read information in the memory of the tag, but only the issuer of the medical smart card can write information on the tag. For example, medical

insurance billing information may be selected to be encrypted.

Information on a smart card typically may be divided into four

groups: read only, added information, updated information, and secure

information. Access to the information on the smart card may be open to

anyone, such as access to a person's blood type, allergies, diabetic

condition and the like. In contrast, certain information on the smart card

may be protected by password or a personal identification number (PIN).

A PIN usually consists of four or five numbers, symbols or alphabetic

characters, individually or in combination, often with a backup security

that disables the smart card when a predetermined number of inaccurate

PIN entries have been executed. Alternatively, some smart cards are

arranged so that only the issuing body, e.g., a metro office, can reload the

smart card. Though authenticated biometrics such as fingerprints and

voiceprints have been suggested as security measures, since biometrics

data are generally stored in electronic form, such data is reproducible, and

thus also represents security risk.

RF tags are known in the art. The use of RF anti-theft tags that

cause a sound to be emitted when an item that was not paid for passes

through the sensor field is known. Such RF tags may be deactivated

when a purchase is made so that no sound is caused to be emitted when

the purchased item passes through the sensor field. In the present

invention an RF tag is typically embedded in a medical smart card or in a

pendant, may be used alone, or, for example in a "dog tag" version wherein the RF tag is embedded in a "dog tag" similar to those used in

the armed forces. In the present invention the RF tag is used to activate

the alarm sensors as the individual enters the medical treatment facility.

As shown in FIG. 1 , numeral 1 00, at least two sensor arrays 1 06

are typically placed proximate to the vertical sides of a doorway of an

entrance room 104 of the medical treatment facility 1 02. The two sensor

arrays 1 06 provide a sensing field as is known in the art. When the two

sensor arrays 1 06 detect the presence of a medical information unit,

typically a medical smart card, dog tag or pendant, the sensor arrays alert

the medical personnel, generally by causing a sound to be emitted, and

the individual passing through the entrance is identified as having a

medical information unit on his person. Clearly, the system may

alternately, or in addition, provide flashing lights or any other type of

predetermined notification of the presence of the medical information unit.

When the alert is generated, the medical personnel may ask the

individual for the medical information unit, or, where this is not an option,

may search the individual and obtain the medical information unit. It may

be a contact medical smart card, a contactless medical smart card, a dog

tag or a pendant. A reader 1 1 0 for a smart card, dog tag or a pendant is

a data extraction unit that is utilized to obtain the name, the identification

code and any other medical information on the medical smart card

together with other information, if any, for the individual in the database

1 1 2 and any other sources coupled to transfer information to the

database 1 1 2. The reader may, where desired, also have the capability of writing to the medical information unit or to any other unit (not shown -

for example, a database) that is coupled to the reader 1 1 0. Thus, medical

personnel may update information on the medical information unit each

time a medical service and/or medicine is administered to a patient. For

example, a reader/writer may be installed in each patient room or at the

bedside of each patient. Upon treatment by the physician or other

medical personnel, information describing what has taken place may be

entered on the medical information unit, and, where selected, may also be

used to update a central medical database as well as a centralized billing

system.

The identification code or social security number on the medical

information unit serves as a type of backup system for being sure that the

medical information is being correlated with the correct individual. Thus,

in the event that there is more than one "John Smith", the identification

code clarifies which "John Smith" the individual is. The smart card

reader, dog tag reader or pendant reader 1 1 0 may be arranged with, or be

a part of, an updating information unit 108 (typically a computer system)

that is used to access the medical facility database 1 1 2. The medical

facility database 1 1 2 may be coupled to receive information from a

physician's office 1 14, a medical laboratory 1 1 6 or the like. Thus the

individual, even if he is unconscious and unable to identify himself or

provide vital information such as blood type, may be aided by the updated

medical information provided by the system of the present invention and

medical personnel have the advantage of having access to updated medical information for the individual, including historical as well as recent

medical information.

FIG. 2, numeral 200, is a flow chart showing one embodiment of

steps in accordance with the method of the present invention. The

method facilitates medical information update for an individual by

combining multi-source medical information based on an information code

on a medical smart card that identifies the individual and predetermined

medical facts about the individual. The individual may be in a hospital, an

emergency medical service vehicle, a police vehicle, a physician's office or

any other place where medical information is needed to assist an

individual. The method includes the steps of: using 202 at least two

arrays of sensors forming a sensing field to identify whether the individual

is carrying a medical information unit; and where the individual is carrying

a medical information unit, combining 204 medical information for the

individual from the medical information unit with information for the

individual in a database to generate an updated medical profile of the

individual. Where selected, the method may further include receiving and

storing 206, automatically, by the database, information updates for the

individual from a plurality of sources. For example, the information

updates from the plurality of sources include information from at least one

medical laboratory and/or information from at least one physician's office.

In another embodiment the sensors for detecting the presence of

the medical information unit may be incorporated into a portable alarm device or scanner 302. In a preferred embodiment, the portable device is

handheld.

FIG. 3, numeral 300, is a block diagram of one embodiment of the

portable device 302 for facilitating a medical information update. The

device 302 has an alarm unit 304 for indicating whether the individual is

carrying a medical information unit 308. In addition, the device 302 has a

device information unit 306, coupled to the alarm unit 304, for, where the

individual is carrying a medical information unit 308, combining medical

information associated with a name of an individual and/or an

identification code of the medical information unit 308 with information

associated with the name of the individual and/or the identification code in

a database to generate an updated medical profile of the individual. The

alarm unit 304 includes a plurality of sensors that, when the device 302 is

passed in proximity to the body of the individual, detect whether the

individual is carrying a medical information unit 308. Operation of sensors

is known to those skilled in the art and will not be described further here.

Where the plurality of sensors detect a medical information unit 308, a

detection alert is typically indicated by a light or light emitting diode on

the device turning on or a sound being emitted from the device 302.

Thus, the alarm unit 304 generally includes a detection alert system to

implement the alert.

When medical personnel use the portable alarm device 302 and the

detection alert system provides an alert, the personnel locate the medical

information unit 308. The device information unit 306 includes a reader 31 0 which has the capability of reading contactless and contact smart

cards as well as pendants, dog tags and RF tags. Where the medical

information unit 308 is a contactless medical smart card, RF tag, dog tag

or pendant, the smart card, RF tag, dog tag or pendant is held in proximity

to the reader 31 0 to allow the information on the smart card to be

transmitted to the device. Current technology allows a reader-writer to be

up to five (5) feet away from the medical information unit. Where the

medical smart card is a contact smart card, the smart card is inserted into

the reader 31 0. The device may include a display screen 31 2 with

controls for selectively viewing the information, e.g., by scrolling. In

addition or alternatively, as desired, the device information unit 306 may

be arranged to provide downloading to or exchanging of information with

a database. Typically, this is accomplished either by an RF transfer with

the database or by plugging a database connection 31 4 of the portable

device directly into a wire connection or placing the database connection

314 of the portable device into contact with a cradle (not shown) that is

designed to facilitate information transfer between a database and the

portable device or synchronize information between them. Since the

technology for cradles and wire connections for handheld computing

devices to permit data transfer is known, it will not be described further

here.

FIG. 4, numeral 400, sets forth a block diagram of another

embodiment of a system in accordance with the present invention. A

smart card 402, a card with a magnetic strip 404 (a "swipe" card), a dog tag or a radio frequency identification (RFID) device 406 such as a

pendant or RFID smart card may be read by a dual reader writer unit 408

coupled to a monitor 410. The dual reader writer unit 408 provides the

capability of security, accountability and adding further information to the

smart card 402, the swipe card 404, dog tag or the RFID device 406. In

one embodiment, the dual reader writer unit provides a two medical

information unit system in which the patient and the person attending to

the patient must both have their medical information units accessed and

recorded with the identity, time and date of contact. Thus, in all contacts

that involve medical treatment, both the care provider's medical

information unit and the patient's medical information unit are accessed,

providing current medical information for the patient at the time of

treatment. Where selected, computers with two processors may be used

to segment the input data in accordance with a predetermined scheme.

Where the medical treatment facility is arranged to serve a number of

individuals, there may be a plurality of dual reader writer units 408, 424

and monitors 41 0, 426 coupled to the database 41 2.

Thus, in a medical treatment room of a medical treatment facility

for example, any vital information such as medication administered may

be added and, where desired, may also be recorded in a database 41 2

(database with database interface) . Where desired, the database 414

may be coupled to a network 41 4, which may be accessed by a computer

41 6, a handheld device, a cellular device 41 8 or the like. The database

41 2 may also be coupled to a plurality of selected databases, for example, databases for a radiology unit 428, a pharmacy 430, a laboratory 432, a

nurses' station 434, a billing or accounting unit 420, a smart card case

specific unit 422 or the like, any of which may be located at the medical

treatment facility or offsite.

As shown in the block diagram of FIG. 5, numeral 500, the device

502 may be embodied in an identification unit that uses a medical smart

card to generate a medical identification bracelet 51 0 for an individual.

The identification unit includes a reader unit 504 for reading a name of the

individual from the medical smart card; and a bracelet generating unit 506

for generating the medical identification bracelet with the name of the

individual printed thereon. For example, the bracelet generating unit 506

may be a computer coupled to a device for printing the medical

identification bracelet 510. The identification unit may also include an

electronic information generating unit 508 for generating an electronic

information unit for the medical identification bracelet 510 or alternatively,

may allow the medical information unit to be affixed thereto. The

electronic information unit may be attached to the medical identification

bracelet 51 0 so that additional information is readily available. Typically,

the electronic information unit includes updatable predetermined medical

information for the individual.

As shown in the block diagram of FIG. 6, numeral 600, a device

602 may use a medical smart card to generate a medical identification

unit 61 0 for an individual. The device 602 includes a reader unit 604 for

reading a name of the individual from the medical smart card; and a medical identification generating unit 606 for generating a medical

identification unit 610 that includes electronic identification of the

individual. As above, the medical identification unit 61 0 may include

updatable predetermined medical information for the individual, and may

also include an electronic information generating unit 608 for generating

an electronic information unit 61 2 for the medical identification unit 610.

The electronic information unit 61 2 may be attached to or incorporated

into the medical identification unit. The medical identification unit 61 0 is

typically a bracelet or a pendant to be worn by the individual.

As shown in FIG. 7, numeral 700, the present invention may

include a system for updating multi-source medical information on a

medical information unit immediately upon a patient's receiving medical

service. The system includes a plurality of medical information units

702, ...(one per patient), a plurality of portable patient input/output units

706, ...(each co-located with at least one patient), and a central database

714. Each medical information unit includes information that identifies

the patient wearing or having the medical information unit 702. If

desired, selected predetermined medical information, such as blood type,

whether the patient has diabetes, the type of diabetes, etc., may also be

included on the medical information unit. Each of the plurality of portable

patient input/output units is co-located with at least one patient and

includes a reader for obtaining information from the medical information

unit 702, a display unit 71 2 for displaying the information obtained, and

where selected, a writer for adding information to the medical information unit and/or a central database. The co-location of the portable patient

input/output unit 706 with the patient being treated facilitates the input

and display of information from the medical information unit for the

patient. Also, this arrangement aids personnel in downloading and

retrieving medical and/or billing information for the particular patient from

a central database. The central database has an interface with each of

the portable patient input/output units and may also include an interface

with a plurality of medical input databases. For example, interfaces to

receive pharmaceutical and/or laboratory test information may be utilized.

The central database may be coupled to each portable patient input/output

unit via wireless or wired connection. The input unit 708 for the portable

patient input/output unit 706 may utilize speech recognition, touchscreen

technology using alphabetic and numeric characters, or any other known

input technology. The central database may also accessible by at least

one network. For example, the central database may be accessible by cell

phone, a personal digital assistant, a computer, the internet or the like.

Again, security for the system will be typically be predetermined by the

system's owner. Typically, the medical information unit is one of: a smart

card, a pendant or a "dog tag".

Typically where the size of the medical information unit has been

minimized, such as where the medical information unit is a pendant or a

small RFID device, the medical information unit 702 may be attachable to

an identification bracelet 704 of the patient, as shown in FIG. 7. Generally, the medical information unit is either a pendant or another

version of a radio frequency identification unit.

FIG. 8, numeral 800, is a diagrammatic representation of an

embodiment of a system for updating multi-source medical information on

a medical information unit immediately upon a patient's receiving medical

service including intravenous treatment in accordance with the present

invention. Note that, in addition to the plurality of medical information

units 802, ...(one per patient), the plurality of portable patient input/output

units 806, ...(each co-located with at least one patient), and a central

database 81 4, the system includes an intravenous attaching unit 81 6 that

allows medical personnel to attach the intravenous connecting apparatus

to the bracelet 804 to stabilize the intravenous connection to the patient.

The portable patient input/output unit 806 includes an input unit 808, a

reader 81 0 and a display unit 81 2 as described above for FIG. 7.

By incorporating RFID transceivers in every area that a patient may

occupy in a medical treatment setting, a record may be maintained

showing the data and time of each treatment. For example, an order of

events might be: arrival via an Emergency Medical Service Vehicle,

ambulance, police car or fire vehicle, emergency room treatment,

treatment from radiology, admission information input, input from a

nurse's station, hospital room input, operating room input, recovery room

input, and discharge station input. The above events would include input

from and identification of all persons that had contact with the patient,

including physicians, nurses, aides, drug dispensers, admission stations, and food dispensers. Thus, all billable services are recorded at the time of

patient contact, expediting the billing process. In addition, other services

such as reception desk services, recovery room services, and pharmacy

services may be entered directly on the medical information unit.

Placement of RFID transceivers for the medical information unit in police

vehicles, fire department vehicles, emergency medical service vehicles,

police stations and fire stations would facilitate access and update of

medical information.

An office visit to a physician is a shorter version of the hospital

system described above, since typically fewer services are utilized during

a patient's visit with a physician. The physician carries out his

examination of the patient, records the examination using a patient

input/output unit and adds any other information needed.

FIG. 9, numeral 900, shows a block diagram of another

embodiment of a system in accordance with the present invention. An

RFID pendant 902, smart card 904, smart card with RFID 906, or a "dog

tag" (SC-RFID 908) is a medical information unit having information that

may accessed using a transmitter/receiver 91 0 with a monitor 91 2, server

91 4 with a monitor 91 2, or reader/writer 91 6 with a monitor 91 8.

Medical information may further include information from radiology 920, a

work station 922, a pharmacy 924, a billing unit 926, or the like, typically

coupled to the transmitter/receiver 91 0, server 91 3 or reader/writer 91 6

by another server 928. In the diagrammatic representation shown in FIG. 1 0, numeral

1 000, the system of the present invention wherein the RFID pendant is

shown attached to an identification bracelet 1 004 that includes an

intravenous device holder. Input from the pendant 1 002, a smart card

with RFID 1 006, a smart card 1 008 or military dog tags 1 01 0 is read by a

hand held scanner/reader 1 01 2, a dual card reader 1 01 4, or a reader-

writer 101 6 and may be shared with a central office 1 01 8 and/or a

branch office 1020. In one configuration, the smart card may be

implemented with an RFID chip. In the field, the hand held

scanner/reader may provide emergency information for an individual. In

the embodiment of FIG. 1 0, a Windows NT Primary Domain Controller

controls client authentication from the central office, and a management

station, i.e., any personal computer equipped with a Web browser, is used

to configure the boot server at each branch and to set user and group

rights and privileges. Medical history may be maintained such that it may

only be accessed by authorized personnel. Typically a wide-area network

couples the central office 101 8 to the branch office 1 020. In one

embodiment, the branch office 1 020 includes an IBM Network Station

Manager that runs as the boot server and applications server, running on a

Windows NT Server 4.0 with Service Pack 3.0. Clients may obtain their

applications and management tasks from the boot server, and their host

connections through a 56 Kbps link to the central office's 3270 host.

FIG. 1 1 , numeral 1 1 00, is a block diagram of an embodiment of a

system in accordance with the present invention in which a dual card reader is utilized. In this embodiment a medical information unit such as a

RFID pendant/pendant on a wristband 1 1 02, an RFID plus a smart card

1 1 04, or a smart card 1 106 is read by a fixed scanner 1 1 08 or a hand¬

held scanner 1 1 1 0 and the information is sent to a computer 1 1 1 2 by

wireline or by wireless. A computer 1 1 1 2 suitable for use in the present

invention typically includes a keyboard 1 1 28 and monitor 1 1 26 and may,

where selected, include a dual card security system 1 1 24. The dual card

security system 1 1 24 generally requires input of a smart

card/pendant/dog tag of a patient together with input of a smart

card/pendant/dog tag of a preapproved service provider in order for access

to be allowed to medical information/billing and the like. The computer

1 1 1 2 is generally coupled (wireless or wireline) to at least one server that

may be coupled to a plurality of information sources such as a records

unit 1 1 1 8, a pharmacy 1 1 20, a billing unit 1 1 22 or the like and may also

be coupled to receive and transfer information using the internet 1 1 1 6.

Although the present invention has been described in relation to

particular preferred embodiments thereof, many variations and

modifications and other uses will become apparent to those skilled in the

art. It is preferred, therefore, that the present invention be limited not by

the specific disclosure herein, but only by the appended claims.

Claims

WHAT IS CLAIMED IS:
1 . A system for entering and updating multi-source information
on a medical information unit immediately upon a patient's receiving
medical service, comprising:
a plurality of medical information units, one per patient, each
medical information unit configured to identify a patient and to include at
least certain predetermined information concerning the patient; and
a plurality of portable patient input/output units, each co-
located with at least one patient, for inputting and displaying information
from the medical information unit of the at least one patient.
2. The system of claim 1 wherein each of the portable patient
input/output unit includes an interface with a central database for
downloading to, and retrieving information, for the at least one patient,
from the central database.
3. The system of claim 2 wherein the central database has an
interface with a plurality of input databases including at least one of: a
pharmacy database, a medical laboratory test facility database, a billing
database or an insurance database.
4. The system of claim 1 wherein the central database is
accessible by at least one network.
5. The system of claim 1 wherein the medical information unit
is one of: a smart card, a pendant, or a "dog tag" wrist watch with
attached chip.
6. The system of claim 1 wherein the medical information unit
s attachable to an identification bracelet of the patient.
7. The system of claim 1 wherein the medical information unit
s one of a pendant or a radio frequency identification unit.
7a. The system of claim 1 , wherein the input/output unit is
a portable reader/writer.
7b. The system of claim 7a, wherein the portable
reader/writer is capable of reading bar code, radio frequency and
dual cards.
7c. The system of claim 1 , further comprising an RF
interface board capable of reading both contact and contactless
smart cords automatically.
7d. The system of claim 7a, further comprising a
transceiver capable of transmitting date to a data base from the
portable reader/writer.
7e. The system of claim 1 , further being adapted so that
connected organizers, pen based organizers or palm pilot devices
may access the database.
7f. The system of claim 1 , wherein data can be updated
or entered by voice recognition.
8. A system for facilitating a medical information update for an
individual arriving in a medical treatment area using multi-source medical
information, comprising: at least two sensor arrays, arranged to provide a sensing field
for the individual arriving at the medical treatment area, for indicating
whether the individual is carrying a medical information unit; and
an updating information unit for combining medical
information for the individual on the medical information unit with
information for the individual in a database to generate an updated
medical profile of the individual.
9. The system of claim 8 wherein the medical identification unit
is one of: a smart card, a radio frequency tag or a pendant.
1 0. The system of claim 8 wherein the database is arranged to
receive and store, automatically, information updates for the individual
from a plurality of sources.
1 1 . The system of claim 1 0 wherein the information updates
from the plurality of sources include information for the individual from at
least one medical laboratory.
1 2. The system of claim 1 0 wherein the information updates
from the plurality of sources include information for the individual from at
least one physician's office.
1 2a. The system of claim 8, wherein the updating
information unit is a portable reader/writer.
1 2b. The system of claim 1 2a, wherein the portable
reader/writer is capable of reading bar code, radio frequency and
dual cards. 1 2c. The system of claim 8, further comprising an RF
interface board capable of reading both contact and contactless
smart cords automatically.
1 2d. The system of claim 1 2a, further comprising a
transceiver capable of transmitting date to a data base from the
portable reader/writer.
1 2e. The system of claim 8, further being adapted so that
connected organizers, pen based organizers or palm pilot devices
may access the database.
1 2f. The system of claim 8, wherein data can be updated
or entered by voice recognition.
1 3. A method for facilitating a medical information update for an
individual arriving in a medical treatment area using multi-source medical
information, comprising the steps of:
using at least two arrays of sensors forming a sensing field
to identify whether the individual is carrying a medical information unit;
and
where the individual is carrying a medical information unit,
combining medical information for the individual from the
medical information unit with information for the individual in a database
to generate an updated medical profile of the individual.
1 4. The method of claim 1 3 further including receiving and
storing, automatically, by the database, information updates for the
individual from a plurality of sources.
1 5. The method of claim 1 4 wherein the information updates
from the plurality of sources include information for the individual from at
least one medical laboratory.
1 6. The method of claim 1 4 wherein the information updates
from the plurality of sources include information for the individual from at
least one physician's office.
1 7. A device for facilitating a medical information update for an
individual arriving in a medical treatment area using multi-source medical
information, comprising:
an alarm unit for indicating whether the individual is carrying
a medical smart card; and
a device information unit, coupled to the alarm unit, for,
where the individual is carrying a medical smart card, combining medical
information for the individual on the medical smart card with information
for the individual in a to generate an updated medical profile of the
individual.
1 8. The device of claim 1 7 wherein the database is arranged to
receive and store, automatically, information updates for the individual
from a plurality of sources.
1 9. The device of claim 1 8 wherein the information updates from
the plurality of sources include information for the individual from at least
one medical laboratory.
20. The device of claim 1 8 wherein the information updates from
the plurality of sources include information for the individual from at least
one physician's office.
21 . A device for using a medical smart card to generate a
medical identification bracelet, pendant or wrist watch for an individual,
comprising:
a reader unit for reading a name of the individual from the
medical smart card; and
a bracelet generating unit for generating the medical identification
bracelet with the name of the individual printed thereon.
22. The device of claim 21 further including means for generating
an electronic information unit for the medical identification bracelet.
23. The device of claim 22 wherein the electronic information
unit includes updatable predetermined medical information for the
individual.
24. A device for using a medical smart card to generate a
medical identification unit for an individual, comprising:
a reader unit for reading a name of the individual from the
medical smart card; and
a medical identification generating unit for generating a medical
identification unit that includes electronic identification of the individual.
25. The device of claim 24 wherein the medical identification unit
includes updatable predetermined medical information for the individual.
26. The device of claim 24 wherein the medical identification unit
is one of: a bracelet or a pendant or wrist watch.
27. A system for updating multi-source medical information on a
medical information unit immediately upon a patient's receiving medical
service, comprising:
a plurality of patient medical information units, one per
patient, each medical information unit configured to identify a patient and
to include at least certain predetermined medical information concerning
the patient;
a plurality of provider medical information units, each medical
information unit configured to identify the provider and the individual
providing a provider service; and
a plurality of portable input/output units, for inputting and
displaying information from at least one patient medical information unit
and from at least one provider medical information unit.
28. The system of claim 27 wherein each of the portable
input/output unit includes an interface with a central database for
downloading to, and retrieving information, for the at least one patient,
from the central database.
29. The system of claim 28 wherein the central database has an
interface with a plurality of input databases including at least one of: a
pharmacy database, a medical laboratory test facility database, a billing
database or an insurance database.
30. The system of claim 28 wherein the central database is
accessible by at least one network.
31 . The system of claim 27 wherein the medical information unit
is one of: a smart card, a pendant, or a "dog tag" or wrist watch.
32. The system of claim 27 wherein the medical information unit
is attachable to an identification bracelet or wrist watch of the patient.
33. The system of claim 27 wherein the medical information unit
is one of a pendant or a radio frequency identification unit.
34. The system of claim 27 wherein at least one patient medical
information unit and at least one provider medical information unit are
utilized in accordance with a predetermined scheme to provide security for
the medical information.
35. The system of claim 34 wherein, when the provider service
is provided, an identity of an individual providing the provider service, an
identity of the patient, and a time and date of the provider service are
entered on the medical information unit.
36. The system of claim 27 wherein at least one of the portable
input/output units is a computer with two processors that is used to
segment input data in accordance with a predetermined scheme.
36a. The system of claim 28, wherein the portable
input/output unit is a portable reader/writer.
36b. The system of claim 36a, wherein the portable
reader/writer is capable of reading bar code, radio frequency and
dual cards. 36c. The system of claim 28, further comprising an RF
interface board capable of reading both contact and contactless
smart cords automatically.
36d. The system of claim 36a, further comprising a
transceiver capable of transmitting date to a data base from the
portable reader/writer.
36e. The system of claim 28, further being adapted so that
connected organizers, pen based organizers or palm pilot devices
may access the database.
36f. The system of claim 28, wherein data can be updated
or entered by voice recognition.
37. An information carrying unit useful to provide pertinent
information about an individual comprising a substrate capable of being
worn by, attached to or embedded within an individual carrier and an
appropriate memory chip attached to the information carrying unit wherein
the information carrying unit acts as radio frequency (RF) identification
device and the information contained on the information carrying unit is
accessible by an RF reader.
38. The information carrying unit of claim 36, wherein the
information contained on the unit provides personal information about the
individual wearing the unit.
39. The information carrying unit of claim 36, wherein the unit is
in the form of a bracelet, pendant or wrist watch.
PCT/US2000/001427 1999-01-20 2000-01-20 Method, device and system for facilitating entry and update of multi-source medical information WO2000043941A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US23386999A true 1999-01-20 1999-01-20
US09/233,869 1999-01-20
US35675099A true 1999-07-19 1999-07-19
US09/356,750 1999-07-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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