DE10315921A1 - Method for identification of dentures or their parts, in particular, teeth involves firm attachment of a transponder with an identification code to the denture or its part - Google Patents

Abstract

A method for identification of dentures (10) or their parts, in particular, teeth involves firm attachment of a transponder with an identification code to the denture or its part, and use of a device capable of reading the identification code. An independent claim is also included for provision of dentures or their parts with transponders incorporating identification codes capable of being read by appropriate devices.

Description

The The invention relates to a method for identifying dentures and / or bit parts, especially teeth, according to the generic term of claim 1, a method for identifying people according to the preamble of claim 4, a method for producing with transponders provided bits and / or bit parts according to the preamble of the claim 5, a bit according to the preamble of claim 10 and a bit part, in particular a tooth, according to the preamble of Claim 12.

Become present Teeth, Dentures and prostheses not so systematically labeled that these Labeling would be generally usable. For dentures and prostheses is common when made on the counterpart an identifier is attached to the imprint, but this is not uniform, but takes place differently depending on the manufacturing dental laboratory. additionally can on the bit or an identification of the prosthesis itself (e.g. by simple inscription the date and / or the name of the customer). This However, the identifier is not uniform and is usually used before the Denture or the prosthesis removed again. In addition, itself with permanent identification, a reading is made visually, which means can that with underside ID previously the bit or the prosthesis is removed from the patient's jaw got to.

Natural teeth and Bits are not marked at the moment.

To körperentstellenden accidents e.g. Fire injuries are an identification of the people involved often not easily possible. At the moment, the people are then identified by the teeth. this happens z. B. about the comparison of the tooth pattern with patient files or the like.

The DE 197 03 822 A1 discloses a marking of a surgical instrument, whereby prostheses and implants are also understood by partial magnetization of a region of the instrument. However, this presupposes that the prosthesis consists at least partly of ferro-magnetic material, which is not the case with teeth and / or teeth. In addition, this means that a high degree of variability in the identifier is not possible, so that a unique assignment of a prosthesis or denture by attaching a worldwide unique and individual identifier is not possible. This also applies to the attachment of patient-relevant data.

The DE 101 18 597 discloses a system for identifying glasses by means of a transponder which is cast in a part contained in a plastic, for example the nostril, during the manufacturing process. This system should enable the glasses to be identified, at least during the manufacturing process.

outgoing from the prior art described above lies the invention based on the task of a method as well as a bit and bit part create with which permanent identification and, if desired, patient-relevant Data and / or data for identifying the person wearing the bit or bit part on one Bit or the bit part can be attached. additionally the task is to find a suitable manufacturing process for such a process Bit or Gebißteil to accomplish.

to solution this task is a method with the features of the claim 1, a method with the features of claim 4, a method with the features of claim 5, and a bit with the Features of claim 10 and a bit part with the features of Claim 12 proposed.

Therefore the invention is based on the basic idea that a transponder with a unique identification code firmly connected to the bit or bit part is and this identification code by means of a reader Identification of the bit or bit part is called up or is available. additionally or alternatively can Personal data about the wearer of the bit is also stored in the transponder his.

As Bit in For the purposes of this invention, natural and artificial Dentures and prostheses understood. A bit part in the sense of this invention is part of a natural or artificial Denture or prosthesis, especially a single tooth, a bridge or like. A transponder in the sense of this invention is everyone Building block that enables Store information such as an identification code in it and this information by means of a reading device, preferably electronically with the help of radio frequency waves and especially contactless, read.

The Identification code of the bit or bit part, as well as any other Data stored in the transponder can thus be used if necessary of a reader can be read out without this the bit and / or Bit part removed must become.

On inventive and insofar preferred transponder has a transmitter unit, such as such as an antenna, as well as a storage unit, e.g. a memory chip. To increase the lifespan as well as reducing wear, a passive is preferred Used transponder that over does not have its own power supply. Such passive transponders are also almost maintenance-free, what they for the application areas of the invention makes it particularly suitable. The necessary energy is obtained from the reading process Field of the reader taken. The antenna of the transponder can be in the form of a transponder coil be shaped, but all alternative electronic ones are Devices conceivable for the data transfer are suitable. The antenna can preferably receive radio frequency waves.

The Storage unit preferably consists of a memory chip. ever after use, this is only readable, i.e. the originally saved Data can no longer changed be, or the data or parts thereof by appropriate commands of the reader changed become. Alternatively or additionally can also be the possibility exist to write new data into the transponder.

A type of transponder that is particularly suitable according to the invention is the so-called COC (coil-on-chip) transponder. Transponders of this type are usually around 2 mm × 2 mm in size - and thus significantly smaller than those from the DE 101 18 597 well-known transponder - and have a storage capacity of 2048 bit. Depending on the area of application, these transponders can also have different sizes and storage capacities.

Preferably is a - if possible worldwide database or a database system consisting of connected databases provided in which each bit or bit part provided with a transponder only an exactly defined identifier has been assigned. So are the bits or the bit parts exactly identifiable. This would allow to find the lost bits or bits of teeth found again to the wearer. So could expensive new products and the associated medical Risks arising from the production tolerances during manufacture resulting from dentures can be avoided.

In addition and so far preferred patient-relevant data are still contained in the transponder, to facilitate diagnosis and treatment of the patient.

If the transponder, as far as preferred, contains data about the person who wearing the bit, so can this can be used to identify people. this means an advantage for identifying people in such situations, if e.g. after a body disfiguring Accident, such as a burn or a serious traffic accident, identification is very difficult. Such an identifier of people is also independent from the identifier of artificial Bit parts and / or Bitten of importance and is also conceivable for natural teeth. Such an insertion of a Transponders in a natural Tooth could in particular for people become more important who because of their professional higher Have a physical risk to suffer a disfiguring accident. These include e.g. Firefighters or Chemical industry employee.

But even in the case of unconsciousness a person could an identification quickly and without any doubt due to the Information contained in the transponder is made. If still in the transponder additional personal data of medical relevance are stored, such as blood type, intolerance across from certain medications, allergies or the like, e.g. after an accident this information is first read out become. On the basis of this information, a corresponding one can then Treatment is done much faster and more targeted and therefore valuable time saved and better medical care for the patient guaranteed become.

Further The invention is based on the basic idea, one in a bit part Make a recess, insert a transponder in this recess and then close the recess again.

The the aforementioned and the claimed and in the exemplary embodiments described, to be used according to the invention Components are subject to their size, shape, material selection and technical conception no special exceptions, So that the Unreservedly apply selection criteria known in the application area can find.

Further Details, features and advantages of the subject of the invention result from the subclaims as well as from the following description of the associated drawings, in which - by way of example - several Embodiments of the bits according to the invention and bit parts are shown.

In the drawings show:

1 a bit with a transponder inserted;

2 a natural molar tooth in top view;

3 same tooth with recess;

4 same tooth with inserted transponder;

5 same tooth with closed recess; such as

6 is a schematic functional drawing of a reader transponder unit that can be used according to the invention.

1 shows a bit 10 with inserted transponder 12 , This is preferably used in a rear area, for example in the area of the molars. This is preferably done by first in the bit plate 14 of the bit 10 a recess is made. This can be done by milling or drilling. The recess is particularly preferably made manually using a plastic milling machine. The size of the recess is the size of the transponder to be used 12 adapted, which usually moves between 2 mm and 6 mm in diameter. All conventional suitable transponders, in particular those from the DE 101 18 597 known transponders are used. Then the transponder 12 inserted in this recess and then closed again. The dental prosthesis plastics known from the prior art can be used for this. These are introduced into the recess in a viscous or liquid form. This is usually followed by a curing step in which the prosthesis plastic hardens by cold or hot polymerization in such a way that saliva or cleaning components with which the prosthesis comes into contact cannot destroy or impair the electrical functionality of the transponder.

alternative can the transponder with suitable denture or prosthesis material and e.g. when casting the Bit embedded in the bit.

The individual steps of a preferred method for producing a molar tooth provided with a transponder are shown in FIGS 2 to 5 shown.

In the in 2 shown molar tooth 20 a recess is first made in the occlusal area 22 brought in ( 3 ). This can also be done, for example, by milling or drilling. The insertion is preferably carried out manually using dental diamond or hard metal grinders. The recess is preferably adapted to the dimensions of the transponder, which usually has a maximum diameter of approximately 2.8 mm with a total thickness of approximately 2 mm. Otherwise, it is only slightly larger.

Then the transponder 24 inserted in this recess ( 4 ) and then with a suitable filling material 26 closed again. The transponder has previously been covered with a suitable covering material. The fixation in the tooth is then usually carried out according to conventional methods, such as known inlay techniques.

Due to the changed size requirements, the DE 101 18 597 Known transponders are not used for teeth, since these are about 6 mm long and therefore too long. However, all other known transponder types of a suitable size can be used.

As filling material 26 All dental fillers known from the prior art, such as composite, can be used. According to a method which is preferred in this respect, the transponder is embedded in such a way that liquid composite is first built into the recess for underfilling the transponder. The transponder is then inserted and this in turn covered with solid composite. The material then hardens. This hardening process takes place either by self-hardening or by UV light.

The mode of operation of a transponder reader unit which is suitable for use according to the invention and is preferred in this respect is shown schematically in 6 shown. It basically consists of a reader 32 and a transponder 30 ,

The reader 32 is usually of the conventional RFID type and contains a read / write transciever-reciever unit 38 by a read / write controller 36 is checked, as well as an antenna coil 40 , by means of which data from the transponder 30 can be read out and / or written into it. This antenna coil 40 is either a conventional air coil or consists of a ferrite core antenna. In addition, the antenna coil 40 either integrated part of the reader - as indicated in the drawing - or attached externally. The requirements for antenna configuration and performance depend on the location and depth of use of the transponder, its performance and the distance over which data is to be read and / or written in. In particular, the material from which the transponder is made the use in the bit or the bit part is important.

The reader 32 can in turn be from a host 36 , such as a PC can be controlled and controlled via a standard USB or UART connection.

The transponder 30 is of the conventional coc type (coil-on-chip = coil on the chip) and comprises an antenna coil 42 a memory 44 , a voltage generator 46 and a control circuit 48 , the last three components are preferably combined on a chip. It is usually 2 × 2 mm in size and has a storage capacity of 2048 bits.

A read-out or write-in process now proceeds in such a way that the read / write transciever / receiver unit 38 , controlled by the read / write control unit 36 a read / write command via the antenna coil 40 to the transponder 32 passes. In the transponder, the voltage generator generates from the field of the antenna coil 40 of the reader 32 the voltage required to operate the chip. The antenna coil 42 receives from the reader at the same time 32 sent signals. The control circuit 48 Depending on the command and transponder type, it either reads data from the memory or writes new data into it. Then be over the coil 42 the data back to the reader 32 transmitted.

10

Denture

12

transponder

14

denture base

20

molar tooth

22

recess

24

transponder

26

filling material

30

transponder

32

reader

34

host

36

Read / write control unit

38

Read / write Transciever / receiver unit

40

antenna coil

42

antenna coil

44

Storage

46

voltage generator

48

Control circuit

Claims (13)

Procedure for identifying dentures ( 10 ) and / or bit parts, especially teeth ( 20 ), characterized in that a transponder ( 12 . 24 ) is permanently connected to the bit or bit part with an identification code and the identification code is called up by means of a reading device for identifying a bit or bit part. A method according to claim 1, characterized in that the Identification code in a database for the re-identification of the Prosthesis is deposited and for a bit and / or bit part is unique worldwide. Method according to claim 1 or 2, characterized in that in the transponder ( 12 . 24 ) in addition to the identification code, data relating to the carrier and / or medical data relating to the bit and / or bit part are stored. Process for identifying people, thereby characterized that the Bit and / or a bit part the person with a transponder, in particular a transponder according to one of the claims 1 to 3 is firmly connected or contains such a transponder and that in the Transponder information about the identity the person is stored and this information is stored using a reader be retrieved to identify the person. Method for providing bits and / or bit parts, in particular for use in an identification method according to one of claims 1 to 4, with transponders, characterized in that in the bit ( 10 ) and / or bit part ( 20 ) made a recess, the transponder ( 12 . 24 ) in a recess ( 22 ) and the recess ( 22 ) is closed again afterwards. A method according to claim 5, characterized in that the Recess is made by manual plastic milling as well the recess is closed with a prosthesis plastic, which then cures. A method according to claim 6, characterized in that the curing done by a polymerization process. A method according to claim 5, characterized in that one to the transponder ( 24 ) precisely fitting recess ( 22 ) is inserted, the transponder ( 24 ) underfilled with liquid composite and with solid composite ( 26 ) is covered and the composite then cures either by self-curing or by UV light. A method according to claim 8, characterized in that this The cut is made using diamond or hard metal grinders he follows. Bit ( 10 ), characterized in that the bit ( 10 ) fixed with a transponder ( 12 ) is connected or contains such a transponder. Bit ( 10 ) according to claim 10, characterized by a production according to one of claims 5 to 9. Bit part ( 20 ), in particular tooth, characterized in that the bit part ( 20 ) fixed with a transponder ( 24 ) is connected or a transponder ( 24 ) contains. Bit part ( 20 ) according to claim 12, in particular tooth, characterized by a production according to one of claims 5 to 9.