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WO1989005117A1 - Systeme et sonde pour mesures intra-buccales - Google Patents

Systeme et sonde pour mesures intra-buccales Download PDF

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Publication number
WO1989005117A1
WO1989005117A1 PCT/US1988/004281 US8804281W WO8905117A1 WO 1989005117 A1 WO1989005117 A1 WO 1989005117A1 US 8804281 W US8804281 W US 8804281W WO 8905117 A1 WO8905117 A1 WO 8905117A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
probe tip
wire
measurement information
probe
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US1988/004281
Other languages
English (en)
Inventor
Arthur Wigell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of WO1989005117A1 publication Critical patent/WO1989005117A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/04—Measuring instruments specially adapted for dentistry

Definitions

  • This invention relates to a system for obtaining and recording intra-oral measurements and also to a hand-held ⁇ probe device for obtaining electronic measurement information indicative of measurements taken intra-orally or on a model of a mouth.
  • an intra-oral probe device comprises ' a hand-held unit which includes a probe tip, means for generating electronic measurement information indicative of measurements taken with said tip, and a transmitter responsive to the electronic measurement information for transmitting through-the-air signals representative of the electronic measurement information.
  • a receiving subsystem is located remotely from the hand-held unit, and includes means for receiving the .transmitted signals and means tor recovering and recording said electronic measurement information.
  • the hand-held unit further comprises a numerical indicator display and means for coupling the electronic information to the numerical indicator display.
  • a foot operated switch is provided and is adapted for use by the person holding the hand-held unit. The foot operated switch is coupled to the receiving subsystem and is operative to control the information recorded by the receiving subsystem.
  • the receiving subsystem includes means for storing data pertaining to predetermined oral parameters, and means for indicating variations between the predetermined oral parameters and the electronic measurement information.
  • a form of the present invention is directed to a hand ⁇ held probe device for obtaining electronic measurement information indicative of measurements taken intra-orally or on a model of a mouth.
  • a hand-held body is provided and has a tubular sleeve extending from its front end.
  • a removable probe tip is within the sleeve and has a forward portion that protrudes past the front end of said sleeve, and is movable in said sleeve.
  • a wire has its front end coupled to the rear portion of the probe tip, the wire extending rearwardly into the body.
  • Biasing means such as a spring, are provided for biasing the probe tip and wire, with substantially constant pressure, against rearward movement with respect to said sleeve.
  • a transducer means in the body is coupled to the wire and generates electronic measurement information representative of the position of the probe tip within the sleeve.
  • probe sleeve and tip can be of a concise configuration and have a curved shape that facilitates efficient use of the prooe while still achieving constant pressure operation.
  • Fig. 1 is a diagram illustrating operation of an embodiment of the invention.
  • Fig. 2 is ' cross-sectional view, partially in schematic form, of an embodiment of. the hand-held probe in accordance with ah embodiment of the invention.
  • Fig. 3 is a block diagram of the receiving subsystem of the Fiy. 1 embodiment.
  • Fig. 4 is a routine for programming the processor of the Fig. 3 embodiment for operation in accordance with a form of the invention.
  • Fig. 5 is another routine for programming the processor for operation in accordance with a form of the invention.
  • Fig.s 6 and 7 illustrate embodiments of the removable probe utilized in the invention.
  • FIG. 1 there is shown a diagram which illustrates operation of an embodiment of the invention.
  • a patient 110 is being examined by a dentist 115, or other person performing an intra-oral examination, such as a periodontist, orthodontist, or dental clinician.
  • the dentist uses a hand-held probe 200 to take measurements in the patient's mouth.
  • these measurements can be of any desired type, including measurement of sulcular depth, measurement of tooth dimensions, measurement of spacing between teeth, etc. or combinations thereof. In this example it is assumed that measurements of sulcular depth are being made.
  • the probe 200 is operated, in a manner to be described, to generate, within the probe, electronic measurement signals that are indicative of the measurements being made.
  • the probe contains a transmitter which transmits this measurement information to a receiver subsystem which, in the present embodiment, is a table model console 300.
  • the probe 200 also has a numerical display 266 (Fig. 3) which displays the electronic measurement information.
  • a foot-operated switch 150 is coupled by a wire 155 to the console 300, and can be used by the operator to indicate which of the transmitted measurements are to be stored. In the event that it is desirable to store all transmitted measurements, the- foot- ⁇ perated switch 150 can be used to flag measurements taken at specific positions in the mouth.
  • the absence of wire connections to the probe further facilitates its operation and convenience.
  • the foot-operated switch further frees the measuring hand from specifying when measurements should be recorded of flagged.
  • a housing 210 which may be formed of plastic or metal, serves as a handle and includes a probe tip subassembly, 220 which is detachable from the housing.
  • the subassembly 220 includes a sleeve base 221 and a detachable front sleeve portion 222 which contains a probe tip element 225 that is movable in the sleeve and protrudes from the front end or lip 222A of the sleeve portion 222.
  • the sleeve base 221 snaps onto housing 210 and the front sleeve portion snaps onto sleeve base 221, although any suitable connection means can be utilized.
  • the probe tip typically of stainless steel, has a rear portion which magnetically and mechanically snap locks into a recess in a front connector portion 238 of a piston drive assembly that includes a piston 231 and a metal drive wire 233 connected between the piston 231 and connector portion 238.
  • a mechanical friction lock or other suitable mechanism can alternatively be employed for attaching the probe tip.
  • the metal wire 233 is selected for properties of being able to accurately transfer displacement without kinking or breaking.
  • the drive wire permits a more compact probe of a configuration that is particularly advantageous for taking measurements in the mouth. It also facilitates the constant pressure operation of the probe.
  • the piston By readily traversing a curved portion of the tip, the drive wire permits a more compact probe of a configuration that is particularly advantageous for taking measurements in the mouth. It also facilitates the constant pressure operation of the probe.
  • a coil spring 239 which is secured at its front end to the piston and at its rear end to the housing
  • the rear portion of the piston 231 communicates with a transducer 250 that functions to measure the piston displacement (and, accordingly, the displacement of wire
  • the transducer should be relatively small, sturdy, and reliable, and should provide an accurate electrical signal that is representative of the piston position or displacement.
  • One such known type of transducer operates on an optical principle, in which a small light source, such as a light-emitting diode, is used in conjunction with a reflector that moves with the piston and a light sensor such as a pnotodiode. The light sensor output represents piston position.
  • Other suitable transducers may operate, for example, on a principle of changing magnetic induction or electrical capacitance.
  • the output of transducer 250 is coupled to a signal conditioning circuit 260, the output of which is coupled to both a display driver circuit 265 and a transmitter driver circuit 270.
  • the signal conditioning circuit 260 conditions the transducer output and may comprise, for example, an analog-to-digital circuit.
  • the output of display driver circuit 265 is coupled to a low voltage display 266, such as a conventional liquid crystal display, for digital display of the probe readings.
  • a low voltage display 266 such as a conventional liquid crystal display, for digital display of the probe readings.
  • An infra-red transmitter 272 is employed, and communicates with infra-red receiver 305 in the console 300 (Fig. 3).
  • a storage battery subassembly 280 is provided and houses batteries that can be rechargeable.
  • a recharging port 285 is also provided so that the batteries can be recharged when the hand-held probe 200 is placed in a recharging stand (not shown) in the console.
  • the probe tip 225 In operation of the hand-held probe, for example in measurement of sulcular depth, the probe tip 225 is inserted between the gum and tooth until it encounters the boundary of gum-tooth connection. Movement forward of the probe body will cause the sleeve 222 to move forward (with respect to the probe tip) until the front edge 222A of the sleeve abuts the gumline. (If desired a reference rim can be provided at the front edge of the sleeve.) As this is done, a substantially constant pressure is exerted by the probe tip due to the spring action on the tip (via the piston and wire). -II- Referring to Fig.
  • FIG. 3 there is shown a block diagram of the recording subsystem which, in the present embodiment, is housed in the console 300 (Fig. 1).
  • a microprocessor 310 is provided, together with conventional memory 311 and input/output circuitry (not shown) and clock circuitry 313.
  • Suitable display 321 and printer 322 capability can also be provided. It will be understood that these functions can readily be implemented using a personal computer, for example an IBM personal computer.
  • the 305 conventionally includes a circuit for recovering the transmitted information from the received infra-red energy, and for decoding this information into a form suitable for input to the processor 310.
  • the foot-operated switch 150 is another input to the processor 310.
  • the block 410 represents initialization of the routine, which can be implemented from the console or, for example, if two or more active positions are provided on the foot-operated switch, can be signalled therefrom. The initialization clears the appropriate registers and sets the measurement sequence index at 1. Inquiry is then made as to whether a foot-operated switch indication has been received (diamond
  • the decoded measurement values are available at a processor input, as indicated in Fig. 3. Inquiry is then made
  • diamond 415 is reentered, and the loop 437 continues until the full sequence of data has been acquired, whereupon the answer to the inquiry of diamond 428 will be in the affirmative.
  • a data printout can then be generated, as represented by block 445.
  • the present invention also facilitates real-time processing of the data to alert the operator that a measurement or group of measurements is, for example, outside a safe range.
  • This is shown in the routine of Fig. 5 wherein the blocks 410, 415, 420, 428, 430 and 445 are similar to those in the routine of Fig. 4.
  • Fig. 5 routine when a current measurement value is stored (in conjunction with its measurement index), two additional operations are performed. In particular, after storage of the latest measurement value (block 420), inquiry is made
  • diamond 521 as to whether the measurement is within a predetermined range. If not, a suitable indication, such as audible indication and/or visible indication at the console can be provided (block 522). Further, the block 523 represents the inclusion of each measurement into a predetermined measurement function (for example, a cumulative or average value or any desired statistical value). This computed measurement value can then be compared against a predetermined value for the same number of data points (diamond 524) and, again, a suitable indication can be provided to the operator when the comparison of diamond 524 indicates that the computed measurement value is outside range. Such automatic monitoring can be useful in determining when measurements indicate either a physical problem or that there are problems with the measurements themselves or with the sequence.
  • a suitable indication such as audible indication and/or visible indication at the console can be provided (block 522).
  • the block 523 represents the inclusion of each measurement into a predetermined measurement function (for example, a cumulative or average value or any desired statistical value).
  • This computed measurement value can then be compared against a predetermined value for
  • Fig.s 6 and 7 illustrate further probe configurations which can be utilized in conjunction with the present invention.
  • the probe of Fig. 6 has a disc 615 at its end which is useful in contacting a surface for distance measurement, for example between teeth.
  • the probe of Fig. 7 has a caliper arm 720 extending substantially perpendicularly from its front end.
  • a reference caliper arm 720
  • a friction stop can be provided for- facilitating changing of tips, and adjustable spring tension can be provided. Further, an anti-rotation mechanism can be provided in conjunction with the probe tip.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

La sonde de mesure intra-buccale décrite comprend une unité tenue dans la main, qui comporte un corps (210) pourvu d'un manchon tubulaire (222) s'étendant depuis son extrémité frontale. Une tête de sonde amovible (225) est incorporée dans le manchon et présente une partie antérieure qui est saillante en aval de l'extrémité frontale (222A) du manchon et qui est mobile dans le manchon. L'extrémité frontale d'un fil (223) est couplée à la partie arrière (238) de la tête de sonde, le fil s'étendant vers l'arrière dans le corps. Un ressort (239) empêche, avec une pression sensiblement constante, tout mouvement de retour de la tête de sonde et du fil par rapport au manchon. Un transducteur (250) placé dans le corps est couplé au fil et produit électroniquement des données de mesure représentant la position de la tête de sonde dans le manchon. Un émetteur (272) réagit à ces données de mesure, afin de transmettre dans l'espace les signaux représentant les données de mesure vers un récepteur et un enregistreur placés à distance.
PCT/US1988/004281 1987-12-02 1988-12-01 Systeme et sonde pour mesures intra-buccales Ceased WO1989005117A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPI571487 1987-12-02
AUPI5714 1987-12-02

Publications (1)

Publication Number Publication Date
WO1989005117A1 true WO1989005117A1 (fr) 1989-06-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1988/004281 Ceased WO1989005117A1 (fr) 1987-12-02 1988-12-01 Systeme et sonde pour mesures intra-buccales

Country Status (2)

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AU (1) AU2642288A (fr)
WO (1) WO1989005117A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4960132A (en) * 1989-09-05 1990-10-02 Habekost Charles F Self-contained periodontal probe for remote recordations
FR2662599A1 (fr) * 1990-05-29 1991-12-06 Taillandier Gerard Dispositif de mesure de la profondeur des poches parodontales.
US5144753A (en) * 1991-03-25 1992-09-08 Murphy Gordon J Probe instrument
US5178537A (en) * 1988-11-04 1993-01-12 Currie Peter E Dental instrument
US5865769A (en) * 1996-05-20 1999-02-02 International Business Machines Corporation Surface contour measurement instrument
US5993209A (en) * 1996-12-12 1999-11-30 Kabushiki Kaisha Morita Seisakusho Periodontal pocket measurement apparatus

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3058225A (en) * 1958-04-01 1962-10-16 Howard L Ward Probing instrument and depth indicator
US3559292A (en) * 1968-07-16 1971-02-02 Bernard Weissman Dental gauge
US3943914A (en) * 1973-08-06 1976-03-16 Grenfell James W Remote-recording periodontal depth probe
NL7703431A (en) * 1977-03-30 1978-10-03 Johannes Hendrikus De Vries Ke Sulcus gingival depth measuring instrument - exerts constant force on retracting probe
US4203223A (en) * 1979-01-12 1980-05-20 Northwestern University Periodontal probe
US4340069A (en) * 1979-10-17 1982-07-20 Yeaple Corporation Force-sensitive probe and method of use
US4665621A (en) * 1986-03-31 1987-05-19 Jerome B. Ackerman Measuring probe
US4677756A (en) * 1985-03-21 1987-07-07 Vs Remek Limited Measuring instruments for measuring depth of cavities
US4764114A (en) * 1986-01-13 1988-08-16 Foster-Miller, Inc. Analysis system
US4791940A (en) * 1987-02-02 1988-12-20 Florida Probe Corporation Electronic periodontal probe with a constant force applier

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3058225A (en) * 1958-04-01 1962-10-16 Howard L Ward Probing instrument and depth indicator
US3559292A (en) * 1968-07-16 1971-02-02 Bernard Weissman Dental gauge
US3943914A (en) * 1973-08-06 1976-03-16 Grenfell James W Remote-recording periodontal depth probe
NL7703431A (en) * 1977-03-30 1978-10-03 Johannes Hendrikus De Vries Ke Sulcus gingival depth measuring instrument - exerts constant force on retracting probe
US4203223A (en) * 1979-01-12 1980-05-20 Northwestern University Periodontal probe
US4340069A (en) * 1979-10-17 1982-07-20 Yeaple Corporation Force-sensitive probe and method of use
US4677756A (en) * 1985-03-21 1987-07-07 Vs Remek Limited Measuring instruments for measuring depth of cavities
US4764114A (en) * 1986-01-13 1988-08-16 Foster-Miller, Inc. Analysis system
US4665621A (en) * 1986-03-31 1987-05-19 Jerome B. Ackerman Measuring probe
US4791940A (en) * 1987-02-02 1988-12-20 Florida Probe Corporation Electronic periodontal probe with a constant force applier

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JOURNAL OF CLINICAL PERIODONTOLOGY, Volume 5, issued 1978, VAN DER VELDEN et al., "Introduction of a new periodontal probe: the pressure probe", see pages 188-197. *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5178537A (en) * 1988-11-04 1993-01-12 Currie Peter E Dental instrument
US4960132A (en) * 1989-09-05 1990-10-02 Habekost Charles F Self-contained periodontal probe for remote recordations
FR2662599A1 (fr) * 1990-05-29 1991-12-06 Taillandier Gerard Dispositif de mesure de la profondeur des poches parodontales.
US5144753A (en) * 1991-03-25 1992-09-08 Murphy Gordon J Probe instrument
US5865769A (en) * 1996-05-20 1999-02-02 International Business Machines Corporation Surface contour measurement instrument
US5993209A (en) * 1996-12-12 1999-11-30 Kabushiki Kaisha Morita Seisakusho Periodontal pocket measurement apparatus

Also Published As

Publication number Publication date
AU2642288A (en) 1989-06-08

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