LU82169A1 - ANTI-FOG LARYNGOLOGICAL AND DENTAL MIRROR - Google Patents

Description

Ä D. 51.011 —-S-24—-9 V u * fc C y GRAND-DUCHE DE LUXEMBOURG Patent N ° ........................ ...........................

February 15 ..... February 198o Minister

Title issued · gÔKgâ of the National Economy and the Middle Classes ___ Industrial Property Service

LUXEMBOURG

Invention Patent Application I. Request ... The..society ..... say ..... ESTABLISHMENTS ..... G ....... DEQUS.T., .... ..5 * ..... avenue ..... âu ..... Gënë -... (u ... r.al .... Le.clfirc .., ...... to ..... lo3oo ... SAINTE ... SAVINE, ..... France, ..... represented ... by ................. ..

... Sir. Jacques ... de .Muyser, ..... acting ..in quality. . of agent. (2) drop off ........ this ....... fifteen ..... February..l9ao ..... eighty ............ ........................................... (3) to ... .... 15 ............ ..... hours, at the Ministry of National Economy and the Middle Classes, in Luxembourg: 1. this request for obtaining a patent for an invention concerning: .. ".Mirror. ... laryngology and .dentaire .... anti-fog.". * ...................... ............................................... (4) declares, assuming responsibility for this declaration, that the inventor (s) is (are): ... J.ean .... JUBERT .., ...... 9, ..... ruePaul ..... Cléret, ...... La..Jlivière.deCQrps. / ...... à ..................... ........ (5) ... 1o3o.q ... sainte ..... savxne, ..... France ................ .................................................. .................................................. ............................................

2. the delegation of power, dated ..SAINTE .... SAYINE ........... on ... 5 ...... February ..... 19.3.0 .. ....

3. description in language ....... French .................................... of the invention in two copies; 4 ................ 8 ............. drawing boards, in two copies; 5. the receipt of the fees paid to the Luxembourg Registration Office on .... February 15 ..... ..... 1.98a ............... .................................................. .................................................. .................................................. ..........................................

claims for the above patent application the priority of one (or more) application (s) of (6) ..................... patent ..... .......................................... filed in (7) ............. Erance .................................... .................................................. .........

on .... 16 ..... Feb. February ..... l9..7.9 ........... (No ....... 7.9 .... .0.39.47} ............................................. .................................................. .................................. (8) in the name of .the.applicant ...... .................................................. .................................................. .................................................. ............................ 0) takes up residence for him / her and, if designated, for their proxy, in Luxembourg. ......................................

.... 35 .., ..... bld -, ..... Royal ............................ .................................................. .................................................. .................................................. .............................. (io) * requests the grant of a patent for the invention for the subject described and represented in the abovementioned appendices, - with postponement of this issue to .. ........... U .................... ... ...month.

^ The ^ m ^^^ ai ^. ^ ............... I

If; Deposit Minutes

The above application for a patent for invention has been filed with the Ministry of National Economy and the Middle Classes, Industrial Property Service in Luxembourg, on: ..... 15_ February 19 8o ...... ... ·· .. Pr. The Minister t. (p) £ DD5 hours - »O ·. de l'Économie Nationale ^, dp-f Middle Classes, jUii- "~ tj A 68007 I w e I / 1 l U *" "LVr * tgr-ÎTl" 7T-r- b * D. 51.011

CLAIM OF PRIORITY

of the patent application /

In France

fri FEBRUARY 16, 1979 Brief Description filed in support of a request for

PATENT

at *

Luxembourg

in the name of: ETABLISSEMENTS G. DEOÜST

for: "Anti-fog laryngological and dental mirror".

I 1! ! The object of the present invention relates to a laryngological mirror and! j dental anti-fog.

! To date, doctors, whether specialized or not, as well as dentists and dental surgeons, have used to provide care in the oral tract, since the place of the intervention is not directly visible, devices called according to the profession "dental mirrors" or "la-ryngological mirrors".

I These devices, made up of a simple reflective glass pellet ”! mounted at the end of a handle, introduced into the mouth or the back throat, i 10 quickly cover with fogging due to the difference in temperature and humidity; '' between the environment where the devices are stored (cabinet, treatment room, operating room) and the oral passages.

The mirror therefore covered with fogging no longer gives a disturbing image. ble incompatible with the precision of the gestures of the practitioner providing the care.

i i 15 The doctor, therefore, must take the mirror out of the oral tracts, so stop mo! | mentally his intervention, and present the device to the flame of a small alcohol lamp to dry it.

ij The mirror heated in this way quickly reaches a fairly high temperature, which the practitioner empirically assesses by applying it on the back of the hand until he judges that the temperature is bearable by his mouth. patient. During the same more or less long medical or dental intervention, this cycle is repeated more or less many i! . time.

day 4

This currently used process therefore brings a certain number of disadvantages: care provided in several stages, f: each time the mirror is reintroduced, search for the best position i and the best image of the part to be treated, fatigue of the patient, who therefore remains generally with his mouth open longer than is necessary for the care proper,! 2! ; 't î - uncertainty of the temperature of the mirror therefore risk of "burning" | being able to bring about an unexpected reflex of the patient of where danger when the practitioner \ provides his care with a scalpel or a dentist's bur, i; - very long intervention time due to the numerous manipulations for i | ; "5 dry the mirror: the practitioner is mobilized longer than necessary | d; - permanent presence of a flame near the area of the doctor's progress with all the risks that this entails.

| The present invention therefore aims to provide a practical device | laryngological or dental mirror tick which prevents any fogging i | 10 or condensation without possible alteration of the image, and therefore alleviating all of them. ‘Disadvantages listed above.

To this end, the subject of the invention is a laryngological or dental mirror of the type comprising a reflective patch mounted in a housing or cup fixed to the end of a handle, characterized in that it comprises; 15 inside said housing, between the latter and the internal face of said reflective pitch, a means of heating the latter connected by the intermediary. re of a hollow body constituting said sleeve to an appropriate energy source j and means for controlling and adjusting the temperature of the reflective patch.

According to a preferred embodiment, said heating means is an electrical resistance mounted on a support fixed to the housing and connected by electrical conductors arranged in the handle and by a flexible cord to a power supply housing comprising an electrical source. continuous or alternating very low voltage and a potentiometer for adjusting the voltage applied to said resistor.

‘Advantageously the electric resistant element is a resistant printed circuit engraved on a rigid or flexible support, but it can also be a simple resistant wire wound on an insulating support such as mica capable of 'supporting the heat given off.

j 30 Preferably also the handle consists of two parts i "iii 3 a -t 'jf \ removable which fit into one another, the two ends facing l these two parts being provided with a electrical connector for connection i; i electrical between the resistant element and said flexible cord connected to one of the two parts of the handle.

! * 5 It may also be advantageous to provide the instrument with an automatic temperature regulation element constituted by a probe (for example a thermistor) housed in the mirror housing and connected to a comparator. placed in the power supply and acting directly and automatically there on the level of the voltage delivered has 1 resistant element incorporated in the (! 10 mirror.

i i j It is of course possible to produce the heating means using another I technology. For example we could use a warm air stream | ! introduced into the mirror housing by a suitable conduit formed in the handle and connected by a flexible pipe to a source of regulated hot air.

I 15 Other characteristics and advantages will emerge from the description I which follows of embodiments of the device of the invention, description | given by way of example only and with reference to the attached drawings, on which: | - Fig. represents in section a type of laryngological mirror and fc f i,. .

e 20 known and commonly used dental; | - Fig. lb and illustrate respectively the dental arrangement and the: laryngological mounting of the mirror of FIG. the; f, - Fig. 2 shows a first embodiment of the device according to the invention; i | 25 “Fig. 3 shows an enlarged sectional view of the mirror of FIG. 2 i | ‘With part of his sleeve; u f - Fig. 4 shows an enlarged sectional view of one of the two parts i! of the handle of the device of fig. 2 with its electrical connection to the power supply unit J; j 30 - Fig. 5 schematically represents the electrical supply diagram! 4 of the resistant heating element of the mirror of FIG. 2; - Fig. 6 shows an alternative embodiment of the mirror of FIG. 3 incorporating a temperature regulation probe; - Fig. 7 illustrates an alternative embodiment of the device of the invention using hot air heating, and FIG. 8 shows an enlarged sectional view of the mirror of the device ’j of FIG. 7.

ï Figure la represents a laryngological and dental mirror of the commonly used type.

; 1 (3 This mirror comprises a reflective patch 1 of glass, for example, set in a box 2 with the interposition of a mass of cardboard 3 between the i · j patch 1 and the bottom of the box 2.

I The housing 2 is welded to the end of a shank 4 which mounts on i 1 a handle 5 as shown in Figures lb and.

15. FIG. 1b illustrates a dental assembly, the tail 4 being screwed into the end of the handle 5, while the figure illustrates it a laryngological assembly, the tail 4 being enclosed in a sleeve using a collet chuck 6.

FIG. 2 generally represents a first embodiment of the device according to the invention. In this embodiment, an electrical resistor 7 incorporated in the housing 2 and supplied from a supply housing 8 is used as the heating element of the reflective patch 1 of the device.

This device comprises three parts, namely: the mirror itself • s 25 said (fig. 3) with its tail forming one of the two parts of the handle by which the practitioner holds the instrument; the grip part of the handle (fig. 4) with its extension cord for electrical connection and the power supply unit 8 (fig. 5).

Referring now to FIG. 3, the mirror is essentially made up according to the invention: 5 ti> * - of a metallic or non-metallic casing 2 containing an electric heating element n jj 7 which may be resistant wire wound on an insulating support (9) capable of supporting the heat given off by the resistant wire (mica I * plate; or other) or a resistant printed circuit, engraved on a rigid or flexible support.

\ 5 - a reflective glass pellet 1 of variable dimensions depending on É • the models, removable or fixed by any means to the housing 2.

! | - A hollow rod 10 called tail terminated by an electrical connector! stick 11 male or female, coaxial, pin or other.

ΐ - of two electrical wires 12 passing through the hollow rod 10 and connecting [1Ö the two ends of the electrical resistance 7 to the connector 11. It should be noted that one of the two wires can be eliminated by using the tail 10 as electrical conductor.

The handle itself (fig. 4) is shaped to ensure proper grip of the instrument and consists of: j 15 rr of a hollow body 13 terminated by a chuck 14 of the tail! 10 of the mirror, of a connector 15 complementary to the connector 11 terminating the tail 10 and allowing the electrical connection between the mirror and the handle.

- a flexible electrical cord 16 terminated by any plug 17 and electrically connecting the connector 15 to the power supply-regulation unit 20 8.

Given the use in the mouth of the device, it is impe-. ratif that the use of electrical energy is made with any guarantee of safety. Therefore, the use of a very low voltage current is necessary for the power supply of the resistor.

To this end, the power supply unit 8 (FIG. 5) comprises: - a very low voltage direct or alternative electrical source 18 which is obtained either; - by an electric battery of any kind, inside or outside the box.

30 - by a safety step-down transformer supplied from the • 6 alternative electrical network available in the user room.

! I - by a continuous reducer possibly available in the room of use.

- by combining two or more of the sources set out above for an operation called normal backup.

- electrical or electronic equipment 19 connected to the source .1 ij very low voltage and delivering on the socket 20 a variable voltage depending on II the position of a potentiometer or switch 21. The socket 20 is used to electrically connect the handle with file 17 complementary to one another.

ïl fl 10 FIG. 6 illustrates an alternative embodiment comprising a regulation

P

| automatic measurement of the temperature of the reflective patch 1.

ii E f

In this variant, an electrical element called probe 22 of which 1 one of the voltage (volt) or resistance (ohms) characteristics varies with the temperature in a positive or negative manner (CTN or PTC thermistor or va-ristor) is housed in the housing. 2 of the mirror. By transmitting this electrical information to the power supply unit 8 (fig. 5) by means of additional conductors 12 in the tail 10 and in the flexible cord 16 and of additional contacts in the connectors 11 and 15, an electrical or electronic comparator analyzes this information and the value displayed by the potentiometer or switch 21, the result of this comparison translated into electrical form acts directly and automatically on the circuit 19 thus stabilizing at any time the temperature at the value displayed by the potentiometer 21 .

When an arbitrary mirror fitted with a resistor 25 and a probe 22 is put into service, the resistor delivers significant energy since the probe transmits a temperature corresponding to the ambient temperature of the room. Quickly, the quantity of energy being important, the probe 22 heats up, transmits an information requesting the system to reduce the quantity of energy and this until the thermal equilibrium of the device.

FIGS. 7 and 8 illustrate the embodiment of an embodiment 7 f I * Ι f Ι of the device of the invention using heating of the reflective patch 1 i by a current of hot air; i

This device consists of a mirror, a handle and heating and air compression equipment.

5 The mirror (fig. 8) consists of: - a metallic or non-metallic casing 2, - a reflective glass pellet 1 of variable dimensions depending on the model, removable or fixed by any means to the casing 2, - a chamber 23 arranged between the housing 2 and the mirror 1, 10 - of a tail formed by two concentric hollow rods 24 and 25 and opening into the chamber 23.

The diameters of the tubes 24 and 25 are such that the section of the crown limited by the circumferences of the tubes is identical to the section of the tube 25 so that the air flow is the same in these two pipes thus arranged.

The tail is terminated on the tube 25 by a connector 26 of the pneumatic type.

The handle is formed: - of a hollow body 27 and of a mandrel for tightening the tail on the tube 24, - of a fitting 29 complementary to the fitting of the pneumatic type 26, - of a flexible tube d air supply 30.

The air heating and compression equipment comprises: - a chamber 31 in which is mounted an electric heating resistor 32, the amount of thermal energy of which is controlled by equipment identical to the supply regulation of the first embodiment ( fig. 5) except for the power characteristics.

a small compressor 33 driving the hot air from the chamber 31 to the chamber 23 of the mirror and thereby heating the reflective glass 1.

30 As in the first example of an embodiment, the temperature is adjusted 8! - · ί j. by acting on the potentiometer or switch 21 of the supply-regulation j; (see fig. 5).

In this variant, the hot air controlled in temperature by the supply box i (FIG. 5) is expelled towards the box 2 by the tube 25 and exits 5 from the chamber 23 by the tube 24 inside the handle. , itself being in free communication with the outside via the orifice 34 (fig. 7).

A probe can be installed either in the chamber 31 or in the chamber 23, the information proportional to the temperature thus collected being brought back to the supply-regulation by electrical conductors and 1Ö. connection connectors which allows, as in the variant in FIG. 6, to automatically stabilize the temperature of the reflective glass 1 at the value displayed on the switch or potentiometer 21 in FIG. 5.

Finally, the invention is obviously not limited to the embodiments shown and described above but on the contrary covers all the variations thereof, in particular those relating to the nature of the means of heating of the reflective paypille.

/ s

Claims (9)

9 t .. * 1. Laryngological or dental mirror of the type comprising a reflective patch mounted in a housing or cup fixed to the end of a handle, means for heating the back of said mirror and means for adjusting this heating, characterized in that that it further comprises 5 "· means for automatic regulation of the temperature of said mirror comprising a probe housed in the mirror housing and sensing the temperature of the latter, a comparator which makes it possible to compare the indications of the probe with a value displayed, adjustable, corresponding to the desired temperature and which acts directly and automatically on the inten-10 heating site. 2. Laryngological mirror according to claim 1, characterized in that the aforementioned heating means comprise an electric heating resistor, the supply circuit of which is housed in a supply box comprising a very low voltage, continuous or alternative electric source, a reference and / or display potentiometer of the voltage applied to said resistor, the aforementioned comparator, which is of electrical or electronic type, which compares the information from the aforementioned probe with the value displayed on the potentiometer and which acts on a voltage modulation circuit so as to stabilize the temperature of the mirror at the value displayed by the potentiometer. 3. Laryngological mirror according to claim 1 or 2, characterized in that the above-mentioned electric heating resistance is mounted on the back of said mirror, this resistance being mounted on a support fixed to the mirror housing and connected to the source of electrical energy and to automatic adjustment and regulation means by electrical conductors arranged in the abovementioned handle, then by a flexible cord for connection to said source and to said means. 4. Laryngological mirror according to claim 3, characterized in that the above-mentioned electric heating resistor is a resistive printed circuit · 30 both engraved on a rigid or flexible support. 5. Laryngological mirror according to claim 3, characterized in that the aforesaid electric heating resistance is a resistant wire wound on an insulating plate, in particular made of mica or the like. 6. Laryngological mirror according to one of claims 3 to 5, caractéri-35 se in that the aforementioned handle consists of two parts nestable one inside the other, the two opposite ends of these parts being provided with pins to ensure the electrical connection between the conductors a 'r 10 * connecting one of said pins to the electric heating resistance and the aforementioned flexible connection cord. 7. Laryngological mirror according to claim 1 or 2, characterized in that the above-mentioned electric heating resistor is placed in a chamber through which a current of air passes which is heated in said chamber by said resistor and which is blown into the handle, then inside the cavity of the mirror housing to ensure the heating of the internal face of said mirror, this air then escaping from said cavity towards the free atmosphere, at a distance from this mirror. 8. Laryngological mirror according to claim 7, characterized in that the hot air going towards the aforementioned cavity and the air coming back circulate in two co-axial conduits housed in the aforementioned handle. 9. Laryngological mirror according to claim 7 or 8, characterized in that the aforementioned chamber is supplied with air by an air compressor 15 and in that it is connected to the hot air supply duct of the handle by a flexible pipe. / V · * λ $ i