A MEASURING DEVICE

Abstract: In a measuring device (10) in the form of a nipple of a baby's comforter, a sensor (16) is embedded in a nipple body (11). Conductors (17) for connection of the sensor (16) to an electronic measuring circuit is also embedded in the nipple body material and are tortuously shaped. Each of the conductors is constituted by a twin helically wound metal wire, and the sensor (16) is constituted by a wafer thermistor. The nipple body (11) is fixed in a central hole of a flange member (40) also constituting a housing of the electronic measuring equipment which is arranged on a printed circuit (47) also supporting a turn on contact (46) which is adapted to be brought into contact with a battery (23) and an LCD-display for displaying the measured maximum temperature. By embedding the sensor and the tortuously shaped conductors in the nipple body, a baby's comforter is provided which has a homogeneous body without lumps or other abnormalities, and the tortuous shape allows the conductor means to adapt itself to deformation of the nipple body, even when it is exposed to strong masticatory or sucking stresses.

Description: A MEASURI NG DEVI CE The present invention relates to a measu ring device and more particu¬ larly to a measuring device in the form of a nipple of a baby's com¬ forter. Several measu ring devices of the above kind are known , e. g . from US patent Nos . 3,913,402, 3,968, 690, and 4, 072,054 and from DE-AS 27 51 952. The measu ring devices according to the above US patents relate to the concept of incorporating a conventional maximum reading mercury thermometer in a baby's comforter. However, several prob- lems are involved in this concept. Firstly the problem of protecting the thermometer bulb containing highly poisoning and polluting mer¬ cury from being destroyed when exposed to masticatory stresses, and secondly the problem of providing a comforter-shaped measuring device which will be perceived and accepted by a baby so that a reliable measu rement may be carried out. The comforter-shaped measu ring device according to the above DE-AS 27 51 952 is a hand-held instrument having a rigid, nipple-shaped probe. Although the mercu ry poisoning and polluting problem is eliminated, the solution is not satisfactory since the hand-held in- strument is probably perceived by the baby as an unfamiliar object, and the rigid, nipple-shaped probe itself is probably perceived as an unpleasing, delusive device which will not be accepted by a baby. Consequently, there is a need for a measu ring device of the above kind which eliminates the risk of breakage, poisoning and pollution, and which is perceived by a baby as a conventional comforter having a nipple of familia r flexibility and homogeneity . This need is fulfilled by a measu ring device of the above kind which , in accordance with the present invention , is characterized in compris¬ ing : A nipple body of a flexible material , a sensor embedded in the nipple body material , and conductor means for connection of said sensor to an electronic measu ring equipment, at least part of said conductor means adjacent to said sensor being embedded in said nipple body material and at least said part of the conductor means being tortuously shaped . By embedding the sensor and at least part of the conductor means adjacent to the sensor in the nipple body material, a measu ring device may be provided which is perceived by a baby as a conventional comforter, and which has a highly homogeneous nipple body without lumps or other anormalities, and the tortuous shape allows the con¬ ductor means to adapt itself to deformation of the nipple body, even when it is exposed to strong masticatory or sucking stresses. The tortuous shape of the conductor means may be provided by a conductor which is formed into any tortuous geometrical shape which preferably does not provide any sharp bendings or points of gradient discontinuity, e. g . a meander cu rve. I n the preferred embodiment of the invention , the conductor means is constituted by a substantially helically wound conductor, and the conductor itself is constituted by a substantially helically wound metal wire. By providing the conductor in the form of such a twin helically wound metal wire, the flexibility is increased as compared with a solid conductor wound into a single helix . The metal of the metal wire of the conductor means may be selected from the group of metal fulfilling the requirements of electrical and thermal conductivity, physical strength and flexibility, and inertness . A metal wire of a metal, such as a noble metal , i .e. a silver, gold, or platinum wire, may advantageously be employed for the conductor means of the measuring device according to the invention . These inert materials are, however, extremely expensive, and, consequently, a stainless steel wire of a thickness of approximately 0.01 -0.04 mm is employed in the preferred embodiment of the invention . The nipple body may have any appropriate shape which gives the user, i . e. a baby, the feeling of familiarity . Consequently, in the preferred embodiment of the invention the nipple body is formed in a conventional manner having a bulb-shaped end. In order to further increase the feeling of familiarity and increase the homogeneity, the nipple body is preferably a hollow rubber nipple body having a wall thickness of approximately 1 mm, preferably 0.8-1 mm . I n this pre¬ ferred embodiment, the sensor is advantageously arranged at the bulb-shaped end of the nipple body so that the sensor is always kept in the oral cavity of the baby when the measu ring device is in use. The sensor may be an electrochemical sensor which is adapted to provide measu ring results relating to a factor or element which is to be determined or measu red, e. g . a component, such as mucin, of the saliva of the baby or of the respiratory air, or the heart or respi¬ ratory frequency. The device may alternatively be adapted to measure a blood gas parameter transcutaneously, e. g . pH, pO« or pCO~, and consequently be provided with a pH, pO~ or pCO« measu ring sensor, respectively. Other blood gas parameters may also be measured by means of an adequate sensor. I n all these embodiments , the sensor is preferably arranged immediately adjacent to the outer su rface of the nipple body wall so that the sensor in question is substantially brought into di rect contact with the saliva and oral cavity of the baby. The material of the nipple body covering the sensor may then be a porous material or a material showing relatively high permeability to water and/or the species to be determined . Alternatively, the sensor may be a temperatu re sensor, and at least the part of the conductor means adjacent to the sensor may be ar¬ ranged immediately adjacent to the outer su rface of the nipple body. The conductor means, which are normally made of a material showing relatively high electrical conductivity, and which also exhibit relative- ly high thermal conductivity, increases the thermal responsiveness of the measu ring device when arranged immediately adjacent to the outer surface of the nipple body . It has been found that the part of the conductor means adjacent to the sensor may establish a good thermal connection between the temperature sensor and the outer su rface of the nipple body, when the said part of the conductor means is ar¬ ranged immediately adjacent to the outer su rface of the nipple body. The temperatu re sensor may be any electronic device which exhibit a well-defined temperatu re dependency, such as a temperatu re de- OMPI < RNAT pendent resistor, an I R detector, a capacitor having a dielectric material, the permittivity of which exhibit a well-defined temperature dependency, an oscillator crystal, the oscillator frequency of which is temperature dependent, a coil comprising a core material, the suscept- ibility of which is temperature dependent, or a solid state device having a so-called p-n-barrier. I n the preferred embodiment of the invention, the temperature sensor is a thermistor and, more specific¬ ally, a wafer thermistor having dimensions less than 1 mm x 1 mm x 1 mm, preferably approximately 0.9 mm x 0.9 mm x 0.7 mm (0.036 inch x 0.036 inch x 0.029 inch) . The small dimensions of the wafer thermistor further contribute to the homogeneity of the nipple body, since the wafer thermistor when embedded within the nipple body wall does not substantially provide any noticeable lumps within the nipple body wall or any substantial discontinuity of the nipple body material. In a further embodiment of the invention, the measuring device fur¬ ther comprises a flange member fastened to the nipple body, the flange member being provided with connector means establishing connection to said conductor means . I n this embodiment, a conven¬ tionally shaped baby's comforter is provided, and the measuring device may be employed as a conventional baby's comforter which , at appropriate time intervals , may be connected to external electronic temperature measuring equipment through said conductor means . I nstead of providing a conventionally shaped baby's comforter, the flange member may be adapted to cooperate with a bottle of a feed- ing-bottle or a baby's bottle. Alternatively, the device may be con¬ nected to the external electronic temperature measuring equipment wirelessly, e. g . by a magnetic coupling through a coil or induction loop. I n such an embodiment, the sensor may constitute a component of a passive LCR-circuit, and comprise a temperature dependent resistor, capacitor, or coil comprising a core, the coupling being pro¬ vided through the coil . By detecting the impedance or the resonance frequency of the LCR-circuit, the temperature may be measured . By employing such a conventionally comforter-shaped measuring device, the measu ring device is completely accepted by the baby and, when carrying out the measu rement, no alternative baby's comforter has to be employed. OMPI In a further embodiment of the temperatu re measu ring device accord¬ ing to the invention, the device further comprises electronic measu r¬ ing means for generation of temperatu re measu ring results based on measuring results obtained by means of said temperatu re sensor, power supply means, and display means for displaying said tempera¬ ture measu ring results generated by said electronic temperatu re measuring means . I n this embodiment, an integral, electronic tem¬ perature measu ring device is provided which does not require con¬ nections to any external equipment. I n order to obtain a self-con- tained, integral, electronic temperature measu ring device which does not differ substantially from a conventional baby's comforter, the electronic temperatu re measu ring means, the power supply means and the display means are advantageously arranged within the flange of the temperatu re measuring device so that the device when compared to a conventional baby's comforter does not exhibit any fu rther pro¬ truding parts or components . I n order to provide a direct output of the temperatu re, the display means are advantageously adapted to display the temperatu re measu r¬ ing results generated by the electronic temperature measu ring means alpha-numerically, and fu rther to indicate any temperatu re change tendency, so that the person watching the baby obtains an indication of any tendency to increase or decrease in temperature. - The display means which are preferably adapted to provide an alpha- numerical readout, may e. g . be an LED-display ( Light Emitting Diode display) , liquid crystal display ( LCD) or the li ke. Since a liquid crystal display consumes far less power than any other known display means, the display means is in accordance with the preferred embodiment of the invention a liquid crystal display. In order to minimize the power consumption and thus maximize the active life-time of the power supply means which may comprise con¬ ventional battery supply means or recha rgeable battery supply means, such as N l -CD batteries , the electronic temperatu re measu ring means preferably further comprises a turn on/turn off means, so that the device only consumes power when the tu rn on means are activated and, consequently, the device is turned on . The turn on/turn off means may comprise a conventional manually operable switch means or, in an alternative embodiment, the turn on/turn off means may comprise a pressure gradient sensitive switch which is activatable by a pressure difference between atmospheric pressure and the pressure within the hollow rubber nipple body. When employing a manually operable switch means, the operator may sometimes forget to turn off the device after use and, consequently, the power supply means may be drained . In order to eliminate this risk of unintended drainage of the power supply means, the electronic temperature measuring means may further comprise a timer circuit for activation of a power down means after a predetermined turn on time period . I nstead of a manu¬ ally operable switch means, the electronic temperature measuring means may comprise a threshold detector means, which is adapted to activate a power up means when a predetermined threshold temperature is exceeded . I n this embodiment, the timer circuit is adapted to activate the power down means a predetermined time period after the temperature has dropped below the above threshold temperatu re. The present invention will now be further described with reference to the drawings, wherein Fig. 1 is a perspective view of a first embodiment of an electronic temperature measuring device according to the invention, Fig. 2 is a sectional view of the device shown in Fig . 1 , Fig . 3 is a perspective view of a slightly modified embodiment of the device shown in Figs . 1 and 2, Fig . 4 is a fragmentary sectional view of the device shown in Fig . 3, Fig . 5 illustrates diagrammatical ly the principle of an automatic turn on switch, Fig . 6 is a sectional view of a third, preferred embodiment of the device in an activated position , Fig . 7 is a sectional view of the device shown in Fig . 6 in an inacti¬ vated position , and Fig . 8 is a flow diagram of an electronic circuit employed in the embodiment shown in Figs . 6 and 7. Figs . 1 and 2 show a first embodiment of an electronic temperatu re measu ring device according to the invention in the form of a baby's comforter 10. The device 10 comprises a nipple body 11 , a flange member 12, a fixation member 13, and a ring member 14. The nipple body 11 , which is a conventionally shaped, bulb-ended, hollow rubber nipple body, is fixed in a central hole 15 of the flange member 12 by means of the fixation member 13. The nipple body 11 is at its bulb- shaped end provided with a thermistor 16 which is embedded within the wall of the hollow nipple body. Conductors 17 (only one shown on the drawing) leading from the thermistor 16 are embedded in the wall of the nipple body 11 . The conductor 17 is a metal wire of an inert metal, e. g. a silver, gold or platinum wire, or a stainless steel wire wound into a twin helix fu rther formed into a meander curve. I n the present context, the term twin helix means that the wire is wound into a first helix constituting a fi rst conductor which is then wound into a second, la rger helix constituting a second conductor, which is then formed into the meander curve shown on the drawings . At least the part of the conductors adjacent to the thermistor 16 are arranged immediately adjacent to the outer su rface of the nipple body so that the conductor which exhibit good electrical and thermal conductivity conducts heat to or from the thermistor 16 from or to, respectively, the outer su rface of the nipple body . At the end opposite to the bulb-shaped end, the nipple body 11 is provided with connectors 18 (only one shown on the drawing) . The connector 18 is arranged in direct electrical conductive relationship with the conductor 17 and, consequently, constitute a connector in relation to the thermistor 16. When arranging the nipple body 11 within the central hole 15 of the flange member 12, the connector 18 is arranged in electrical contact with a mating connector 19 at the interior wall of the central bore 15. The connector 19 together with a corresponding connector (not shown on the drawing) cooperating with the connector corresponding to the connector 18, not shown on the drawing, are th rough electrical con¬ ductors (not shown on the drawing) connected to an electronic circuit 20 which constitutes an electronic temperatu re measu ring means for generation of temperature measuring results based on measuring results obtained by means of the thermistor 16. The electronic circuit 20 is an LSI ( Large Scale l ntegration) -circuit which is arranged at the 1E rear surface of a liquid crystal display (LCD) 21 in electrically con¬ ductive relationship therewith . The liquid crystal display is arranged within a recess 22 of the flange member 12 and the front surface of the liquid crystal display is visible through a window of the flange member. Apart from an indication of the measured temperature, in Fig. 1 , the display 21 indicates a temperature of 37,2°C, the display 21 is adapted to provide an indication of any tendency of a temperature change. Thus, in Fig . 1 , the uppermost right corner of the display 21 indicates an upwardly pointing arrow which indicates a tendency of increase in temperature. The opposite tendency, i . e. a tendency of decrease in temperatu re, is indicated in the lowermost right corner of the display 21 by a downwardly pointing arrow. The electronic circuit 20 is supplied from a power supply 23 (a hearing aid battery) . In Figs . 3 and 4, a slightly modified embodiment, relative to the embodiment of the invention shown in Figs . 1 and 2 is shown . The embodiment shown in Figs. 3 and 4 differs from the embodiment shown in Figs . 1 and 2 in having a nipple body 24 of a different geometrical shape. While the nipple body 11 shown in Figs . 1 and 2 is a sub- stantially rotational symmetrical nipple body, the nipple body 24 has a plane lower surface 25 which is intended to be brought into intimate contact with a baby's tongue. I n the embodiment shown in Figs. 1 and 2, and the slightly modified embodiment shown in Fig . 3, the circuit 20 is preferably provided with a threshold circuit and a timer circuit, so that the entire elec¬ tronic circuit is turned on when the temperature detected by means of the thermistor 16 exceeds a predetermined th reshold temperature, e. g . a temperature of 35°C, and so that the entire circuit is automa¬ tically turned off after a predetermined time period, e. g. a time period of 3 min . , when the temperature detected by the thermistor 16 drops below the same th reshold temperature of e. g . 35°C. Furthermore, the power supply constituted by the hearing aid battery 23 may be replaced by a fresh battery if the battery has been drained so that the life time of the measuring device may exceed the OMPI life time of the battery 23. The nipple body 11 may also be replaced by extracting the fixation member 13 from within the central hole 15 of the flange member 12. Thereafter, the nipple body presently arranged protruding from the flange member 12 is replaced by a new one, and the fixation member 13 is remounted in the central hole 15 as shown in Fig. 2. Consequently, the entire measuring device may be reused, e.g. for use in connection with a new patient, i.e. an¬ other baby, or after a baby has bitten through the nipple body 11 and the conductor 18. In Fig. 5 a switch is shown which is adapted to turn on the electron¬ ic circuit of the electronic measuring device according to the inven¬ tion when exposed to sucking. The turn on switch is arranged within a cavity of a body 31 of an insulating material and comprises an electrically conductive membrane 32, e.g. a metal membrane, or an insolating membrane, made of e.g. a plastic material or rubber, having a metallic coating thereon. The membrane 32 is kept in spaced apart relationship relative to a metallic body 33 by means of a distance ring 34. A first side of the membrane is exposed to the atmospheric or outer pressure, in Fig. 5 designated P z - j ii- and the opposite side of the membrane 32 is exposed to a pressure designated P.j,. The pressure P... refers to the pressure within the cavity of the nipple body, i.e. the nipple body 11 shown in Figs. 1 and 2, and the nipple body 24, shown in Figs. 3 and 4. By exposing the nipple body to sucking influences, the pressure P (f . decreases and, at a specific threshold of the pressure P-x,, the pressure grandient across the membrane 32, i.e. the pressure difference P,-., .--. - P 1 ,, causes OUT IN the membrane 32 to bend into contact with the metallic body 33 and, consequently, provide electrical connection between conductors, not shown on the drawing, connected to the membrane 32 and the metallic body 33, respectively. In order to equalize any static pressure difference between the pressures P QI J- I - and P.^, the cavity of the nipple body is preferably vented by means of a small hole or bore (not shown on the drawing). When employing this turn on switch, the time constant of the above timer circuit is preferably reduced to e.g. 15 s. I n Figs . 6 and 7, a third, preferred embodiment of a temperature measuring device according to the invention is shown . The embodi ¬ ment shown in Figs . 6 and 7 differs from the above described embo¬ diments shown in Figs . 1 , 2, and 3 in that the flange member 12 and the fixation member 13 are omitted and replaced by alternative compo¬ nents. I n Figs . 6 and 7, the nipple body 11 protrudes from a front side of a flange member 40 and extends through a central hole thereof. The nipple body 11 is fixed relative to the flange member 40 by means of a member 41 which also supports the electronic means of the device. The supporting member 41 is arranged in a snap fit in the central hole of the flange member 40. On the side surface of the supporting member 41 opposite to the nipple body 11 , a cover member 42 is at its periphery fixed to the flange member 40 as indicated in Fig . 7 by the reference numeral 43. I n a hole of the cover member 42, the ring 14 is arranged in a manner identical to the arrangement of the ring member 14 relative to the fixation member 13 shown in Figs . 1 and 2. The cover member 42 is provided with a projecting knob 44 which is adapted to be snap fitted into a corresponding recess 45 of the sup- porting member 41 . In Fig . 6, the projecting knob 44 is received in the recess 45, while in Fig . 7, the projecting knob 44 bears against the entry of the recess 45. I n this position, the elasticity of the cover member 42 biasses the projecting knob 44 against the entry of the recess 45. The above mentioned battery 23 is snap fitted into a recess of the cover member 42 (not shown on the drawing) so that the battery 23 is moved together with the cover member 42 when moving the pro¬ truding knob 44 into or out of the corresponding recess 45. I n the position of the cover member 42 shown in Fig . 6, the battery 23 is brought into contact with a metallic contact 46, while in Fig . 7, the battery 23 is out of contact therewith . Consequently, in Fig. 6, the electronic temperature measu ring device is turned on, while in Fig . 7, the device is turned off. The contact 46 is arranged on a printed circuit board 47 to which the liquid crystal display 21 is connected through a strip of laminated contacting rubber 48. The display 21 is visible th rough a window (not shown on the drawing) of the cover member 42. The printed circuit board 47 is in a manner well known in the art provided with printed circuits establishing electrical con¬ nection between the electronic components of the device, e. g . con- nection between the contact 46 and an active electronic temperature measuring circuit (not shown on the drawing) . Instead of this manually operable switch , the above described auto¬ matic turn on switch may be arranged within the supporting member 41 and be adapted to establish connection between the battery 23 and the elctronic temperatu re measuring circuit. When employing the automatic turn on switch, the electronic temperatu re measu ring circuit preferably comprises a voltage storage device, e. g . a capacitor, defining a predetermined time constant of discha rging the device of e. g . 15 s . I n the embodiment shown in Figs . 6 and 7, the conductor 17 is a stainless steel wire of a thickness of 0.01 -0.04 mm wound in the above described twin helical manner and formed into a meander curve. The nipple body 11 is a natu re rubber body having a wall thickness of approximately 0.8-1 mm. The members 40, 41 , 42, and 14 are preferably made of a plastics material such as knockproof polysty¬ rene, polyethylene, or preferably polypropylene. The electronic temperature measuring circuit (not shown on the draw¬ ing) is constituted by a custom-designed LS I -ci rcuit, preferably made in CMOS-technique (Complementary Metal Oxide Semiconductor) . The printed circuit boa rd 47 is a printed ci rcuit board provided on a film base. The thermistor 16 is a wafer thermistor of the type 7W2003-5 supplied from Dale Western Thermistor, Oceanside, California, U . S . A . and measures 0.9 mm x 0.9 mm x 0.7 mm (0.036 inch x 0.036 inch x 0.029 inch) . I n Fig . 8, a flow diagram of an electronic ci rcuit of the above de¬ scribed preferred embodiment of the electronic temperatu re measu ring device according to the invention is shown . The ci rcuit is connected to the above described battery 23 and the thermistor 16. The func- __ OMP IP tions of the circuit is controlled by a clock generator 50, which is a two-step clock generator providing a high clock frequency (approxim¬ ately 50kHz) during a relatively short measurement period (approxim¬ ately 50 ms) and a low clock frequency (approximately 3 kHz) in the remaining part of the cycle (approximately 5 s) . A 21 -stage sequence counter is stepped by the clock generator. Outside the measurement period, a block 52 turns down the power to an analogue integrator/ comparator 53 connected thereto in order to conserve energy. The thermistor 16 is connected to the analogue integrator/comparator 53 which has an integral calibrated reference resistor which defines a predetermined reference temperature. During the first clock pulses of the measu rement period, a capacitor is charged th rough the reference resistor whereupon the capacitor is discharged th rough the termistor 16 in accordance with the so-called dual slope principle. By comparing the charging and discharging time constants or slopes, the temperatu re detected by the thermistor is determined . The output from the analogue integrator/comparator 53 together with the output from an analogue imitator 54 and counting control pulses supplied from the sequence counter 51 are input to a temperatu re counter 55 for conversion of the analogue measuring result provided by comparison in the above manner into a digital code. The analogue imitator 54 prevents the temperatu re counter 55 from being activated by clock pulses supplied from the sequence counter 51 while the analogue integrator/ comparator 53 is turned off by the power down block 52. I n case the temperature is increasing, a maximum temperature comparator 56 inputs the digital code from the temperature counter 55 into a display latch 57. The display latch 57 stores, consequently, the measured maximum temperature. When power is turned on, a power on reset block 58 resets the sequence counter 51 and the display latch 57. The code stored in the display latch is input into an LCD (liquid crystal display) -decoder/ driver 59. The output of the LCD-decoder/d river 59 is connected to the display 21 . By means of a °C/°F selector 60 which is actually constituted by a simple jumper connecting a selector pin of the circuit to the power high or power low terminal , respect - ively, the actual clock frequency of the clock generator 50 is determ¬ ined so that the readout of the display 21 is the temperature measured in °C or °F. A minimum temperature gate 61 together with a battery low detector 62 are connected to a backplane driver 63 which in turn is connected to the LCD-decoder/driver 59 in order to extinguish any readout of the display 21 in case the measured temperature or the battery voltage do not exceed a minimum temperatu re th reshold and a minimum battery voltage threshold, respectively.

Claims: CLAIMS 1 . A measuring device (10) in the form of a nipple of a baby's com¬ forter and characterized in comprising : a nipple body (11 ) of a flex¬ ible material, a sensor (16) embedded in the nipple body material, and conductor means (17) for connection of said sensor to an electronic measuring equipment, at least part of said conductor means adjacent to said sensor being embedded in said nipple body material and at least said part of the conductor means (17) being tortuously shaped. 2. A device according to claim 1 , wherein the conductor means (17) are constituted by a substantially helically wound conductor. 3. A device according to claim 2, wherein the conductor itself is constituted by a substantially helically wound metal wire. 4. A device according to claim 3, wherein the wire is a stainless steel wire of a thickness of approximately 0.01 -0.04 mm. 5. A device according to any of the preceding claims , wherein the nipple body (11 ) has a bulb-shaped end, and is a hollow rubber nipple body having a wall thickness of approximately. ! mm, prefer¬ ably 0.8 - 1 mm. 6. A device according to claim 5, wherein the sensor (16) is arranged at the bulb-shaped end of the nipple body (11 ) . 7. A device according to any of the preceding claims, wherein the sensor (16) is a temperatu re sensor, and wherein at least said part of the conductor means (17) adjacent to the sensor are arranged imme- diately adjacent to the outer surface of the nipple body (11 ) . 8. A device according claim 7, wherein the temperature sensor (16) is a thermistor. OMPI wito 9. A device according to claim 8, wherein the thermistor (16) is a wafer thermistor having dimensions less than 1 mm x 1 mm x 1 mm, preferably approximately 0.9 mm x 0.9 mm x 0.7 mm . 10. A device according to any of the preceding claims , further com- prising a flange member (12, 40) fastened to the nipple body (11 ) , the flange member (12, 40) being provided with connector means (19) establishing connection to said conductor means . 11 . A device according to any of the claims 7-10, further comprising electronic temperature measu ring means (20) for generation of tem- perature measu ring results based on measu ring results obtained by means of said temperatu re sensor (16) , power supply means (23) , and display means (21 ) for displaying said temperature measuring results generated by said electronic temperatu re measu ring means (20) . 12. A device according to claims 10 and 11 , wherein said electronic temperatu re measu ring means (20) , said power supply means (23) and said display means (21 ) a re arranged within said flange (12, 40) of the temperature sensing device (10) . 13. A device according to any of the claims 11 -12, wherein the dis¬ play means (21 ) are adapted to display the temperature measuring results generated by said electronic temperature measu ring means (20) alpha-numerically. 14. A device according to any of the claims 11 -13, wherein said display means (21 ) are fu rther adapted to indicate any temperatu re change tendency. 15. A device according to any of the claims 11 -14, wherein the dis¬ play means (21 ) is a liquid crystal display. 16. A device according to any of the claims 11 -15, wherein said electronic temperature measuring means (20) further comprise a turn on/turn off means . OMH LA, - 1PO 17. A device according to claims 5 and 16, wherein the turn on/turn off means comprises a pressure gradient sensitive switch which is activatable by a pressure difference between atmospheric pressure and the pressure within the hollow rubber nipple body.

Inventors: CHRISTOFFERSEN STEEN RUPERT, CHRISTOFFERSEN, STEEN, RUPERT
Applicants: CHRISTOFFERSEN STEEN RUPERT, CHRISTOFFERSEN, STEEN, RUPERT
Application year: 1983
Main classification: G01K7
IPC codes: A61B5, A61J17, G01K1, G01K7, G01K13