CN202724029U - Recording unit of teeth and jaw motion curve - Google Patents
Recording unit of teeth and jaw motion curve Download PDFInfo
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- CN202724029U CN202724029U CN 201220298938 CN201220298938U CN202724029U CN 202724029 U CN202724029 U CN 202724029U CN 201220298938 CN201220298938 CN 201220298938 CN 201220298938 U CN201220298938 U CN 201220298938U CN 202724029 U CN202724029 U CN 202724029U
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Abstract
The utility model discloses a recording unit of a teeth and jaw motion curve. Specifically, a processor unit produces pulse with a certain frequency by controlling a pulse generation unit, and the pulse is used for driving an ultrasound transduction sending unit to work and send ultrasonic wave signals. The ultrasonic wave signals reflected by an upper jaw headstock are received by an ultrasound transduction receiving unit and electrical signals are produced. Time difference signals are produced after the produced electrical signals pass through a signal preprocessing unit and are received by the processor unit, and the time difference signals can be recognized by a timing circuit and is used for calculating the distance between a lower jaw splint and the upper jaw headstock. A motion curve is reconfigured through a main control computer according to conveyed data received from a wireless transmission unit, and parameter of an occlusal rack and the relation of shifting jaw position can be obtained. According to the recording unit of the teeth and jaw motion curve, multipoint induction is adopted, and data accuracy is improved and the coverage of the teeth and jaw is enlarged. The middle relation position of the low jaw can be reappeared stably, accurately and reliably. The relation between a hinge axis and the upper jaw is shifted and reappeared. Various non-middle relations between the lower jaw and the upper jaw are reappeared.
Description
Technical field
This utility model belongs to clinical medicine mouth cavity orthodontic field, is specifically related to a kind of tooth jaw movement locus recording equipment.
Background technology
Develop rapidly along with stomatology and bioinformatics, as a kind of device that the 26S Proteasome Structure and Function of human body organ of mastication is simulated, be widely used in orthodontics, prosthodontics, tooth close learn and clinical, the teaching and scientific research work in the jaw territories such as orthognathic surgery in.Existing traditional mechanical formula tooth closes frame and exposes gradually the limitation that is difficult to overcome, and far can not satisfy the requirement of basic research and clinical treatment, is mainly reflected in following several respects: 1) articulator registration can not long preservation, can't reuse; 2) be subjected to the restriction of model, observe in the motion to as if plaster model; 3) be subjected to the restriction of precision, it is often not high that the traditional mechanical tooth closes the frame precision; 4) complicated operation, efficient is low, needs the professional and technical personnel to operate; 5) the traditional mechanical formula tooth analysis result that closes frame can't be directly used in present stage in the computer-aided design of stomatology jaw territory develop rapidly/auxiliary manufacturing system (CAD/CAM), can not satisfy modern stomatology digitized, visual, precision, intelligentized development trend.
In advancing the digitized process of stomatology, there is the foreign scholar to propose to simulate mandibular movement with the virtual articulator system, namely replace real machinery with computer software, with the object replacement plaster model of mathematics geometric model as doctor's research, replace mechanical tooth to close frame with the fantasy sport in the three dimensions and move really.And the simulation of the most key functional movement no longer is by the several control parameters of simple allotment mechanical tooth to be married again in true jaw motion roughly, approx to close on the frame, but directly drive geometric model with the true jaw movement locus coordinate that collects, thereby realized that mandibular movement truly reproduces.At present, domesticly there is no ripe virtual articulator system, only limit to separately the analysis to jaw denture, mandibular movement, occlusal contact condition point, or the analysis of the prominent and glenoid fossa relative position of condyle in the mandibular movement, just the mechanical tooth of " digitized " closes frame, has a lot of limitation.
Germany ARCUS digma mandibular movement track record instrument can obtain the movement locus of lower jaw more accurately by acoustoelectric sensor, be some independently lower jaw interlock tracks, do not have representativeness, because actual masticatory movement is complexity extremely, comprise seesawing, horizontally slip and opening and closing mouthful motion of lower jaw, each interlock track all is not quite similar, especially investigate on the mandibular model a bit in the motor process that upper gnathode curved surface slides, when the intercuspal position of lower jaw and lower jaw changed, its tooth jaw track difference was apparent in view.
The utility model content
The purpose of this utility model is the problems referred to above that exist in order to solve prior art, has proposed a kind of tooth jaw movement locus recording equipment.
The technical solution of the utility model is: a kind of tooth jaw movement locus recording equipment, specifically comprise: wireless transmission unit, processor unit, pulse generation unit, ultrasonic transduction transmitting element, ultrasonic transduction receiving element, the upper jaw headstock, Signal Pretreatment unit, timing circuit unit and main control computer, wherein
Described ultrasonic transduction transmitting element and ultrasonic transduction receiving element are positioned on the mandibular splint and form a ultrasonic transducer, and processor unit is used for driving the ultrasonic transduction transmitting element work on the mandibular splint and sending ultrasonic signal with the certain frequency impulsing by the control impuls generating unit; The ultrasonic signal that returns through upper jaw headstock back reflection is received and produces the signal of telecommunication by the ultrasonic transduction receiving element on the mandibular splint; The signal of telecommunication that produces entered the Signal Pretreatment unit and produced the signal that timing circuit can be identified, and the time difference signal that timing circuit produces is received by the processor unit, and described time difference signal is used for calculating the distance between mandibular splint, the upper jaw headstock; The wireless transmission unit that is connected with processor unit is transferred to main control computer with range information, and the data reconstruction of the transmission of the wireless transmission unit that the main control computer basis receives goes out movement locus and then obtains tooth and close the frame parameter, shift jaw relationship.
Further, described processor unit comprises every straight filtering subelement, one-level and amplifies subelement and the adjustable subelement of two stage gains, describedly amplifies subelement and the adjustable subelement of stage gain of being connected connects successively every straight filtering subelement, one-level.
The beneficial effects of the utility model: tooth jaw movement locus recording equipment of the present utility model adopts the multiple spot induction, has greatly improved data precision and the coverage rate that has enlarged the tooth jaw; Easy to use; Can stablize, reappear accurately, reliably mandibular centric relation position (CR); The relation that can shift, reappear hinge axis and the upper jaw; Can reappear lower jaw to the various non-CR relation of the upper jaw; Can reappear, the individual mandibular movement feature of simulated patient.
Description of drawings
Fig. 1 is a kind of tooth jaw of this utility model movement locus recording equipment schematic diagram.
Fig. 2 is upper jaw headstock schematic diagram of the present utility model.
Fig. 3 is mandibular splint schematic diagram of the present utility model.
Description of reference numerals: 1 earplug holder, 2 actuators, 3 teeth close the fork joint fastener, 4 glabella framves, 5 ultrasonic transducers, 6 teeth close fork.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Basic thought of the present utility model is to utilize the movement locus of measuring the relative upper jaw of lower jaw based on the device of sonac, with the real-time driving numeral tooth jaw motion of the movement locus that obtains, accomplishes being synchronized with the movement of man-machine interaction; Through after a large amount of masticatory movements, adopt the machine self study of the k-nearest neighbor algorithm of distance-based weighting to obtain best movement locus, and drive the motion of the complete relative upper jaw of three-dimensional tooth jaw lower jaw that is virtually reality like reality with best mandibular movement track, make digital tooth close frame and can simulate accurately lower jaw with respect to the hinge axis location of the upper jaw and at the movement locus of three dimensions all directions and the occlusal position of the best, close the frame parameter, shift jaw relationship thereby measure tooth.Thereby realize the accurate transfer of virtual articulator on tooth jaw relation is from real human body tooth jaw to computer.
The first fixedly headstock and ultrasonic receiver during use; Then in mouth mandibular splint is adhered to lower front facies labialis dentis (clamping plate can not disturb central occlusion and mandibular movement), connect ultrasonic transmitter, upper and lower tooth is stung to central occlusion, records this position; At last, make the patient do respectively remaining silent, mandibular protraction and lateral movement recording track coordinate point set.Can obtain on computers tooth by this model closes the frame parameter, shifts jaw relationship.
Fig. 1 has provided a kind of tooth jaw movement locus recording equipment schematic diagram, specifically comprise: wireless transmission unit, processor unit, the pulse generation unit, the ultrasonic transduction transmitting element, the ultrasonic transduction receiving element, the upper jaw headstock, the Signal Pretreatment unit, timing circuit unit and main control computer, wherein, described ultrasonic transduction transmitting element and ultrasonic transduction receiving element are positioned at and form a ultrasonic transducer on the mandibular splint, and processor unit drives the ultrasonic transduction transmitting element work on the mandibular splint and sends ultrasonic signal with the certain frequency impulsing by the control impuls generating unit; Ultrasonic signal runs into upper jaw headstock back reflection and returns; Received the signal of telecommunication and produce by the ultrasonic transduction receiving element on the mandibular splint; The signal of telecommunication that produces produces the signal that timing circuit can be identified through the Signal Pretreatment unit, and the time difference signal that timing circuit produces is received by the processor unit, can calculate distance between the upper and lower tooth jaw by s=vt/2; The wireless transmission unit that is connected with processor unit is transferred to main control computer with range information, main control computer goes out movement locus according to the data reconstruction of the transmission of the wireless transmission unit that receives, and obtains tooth jaw relation data, jaw relationship with the virtual interlock of three-dimensional tooth jaw, collision.
What the range information here characterized is the some data of the relative upper jaw distance of lower jaw, can be binary also can be metric.
Described processor unit comprises every straight filtering subelement, one-level and amplifies subelement and the adjustable subelement of two stage gains, describedly amplifies subelement and the adjustable subelement of stage gain of being connected connects successively every straight filtering subelement, one-level.
Here the upper jaw headstock is specially the arc upper jaw headstock, specifically as shown in Figure 2, actuator 2 utilize external auditory meatus and condyle prominent between more constant anatomical position relation, and the external auditory meatus anatomic form inserts ear to earplug holder 1 with fixing upper jaw frame; By regulating the glabella frame) determine that tentatively bow face tooth jaw frame is in the middle; Then, twisting closed bite fork joint fastener 3 fixes and locks upper jaw frame.
In Fig. 3, provided the mandibular splint schematic diagram of this utility model device, with 4 (or n, n is even number) identical ultrasonic transducer 5 is embedded on the mandibular splint as receiving sensor, the location comparison that its each receptor is placed is special, be by calculating and draw, so relatively be conducive to simulate more accurately the movement locus of the relative upper jaw of lower jaw; Tooth is closed fork 6 put into mouth, regulate tooth and close fork joint fastener 3 and make tooth close fork 6 to adhere to lower front facies labialis dentis (clamping plate can not disturb central occlusion and mandibular movement); The two ends of lower jaw frame are tied up at head with rope fix; Opening controller drives ultrasonic transducer work, and upper and lower tooth interlock is also found central occlusion, records this position; At last, make the patient do respectively a large amount of remaining silent, mandibular protraction and lateral movement, and progressively find the interlock mode of the most comfortable, recording track coordinate point set.
The doctor can directly be worn on this tooth jaw movement locus recording equipment patient's face, need not to make plaster dental model, adopts the multiple spot induction, has greatly improved data precision and the coverage rate that has enlarged the tooth jaw; Easy to use; Stablize, reappear accurately, reliably mandibular centric relation position (CR); The relation that shifts, reappears hinge axis and the upper jaw; Reappear lower jaw to the various non-CR relation of the upper jaw; Reproduction, the individual mandibular movement feature of simulated patient.
Tooth jaw movement locus recording equipment of the present utility model can be used for present stage in the computer-aided design of stomatology jaw territory develop rapidly/auxiliary manufacturing system (CAD/CAM), to satisfy modern stomatology digitized, visual, precision, intelligentized development trend.
Those of ordinary skill in the art will appreciate that, embodiment described here is in order to help reader understanding's principle of the present utility model, should to be understood to that protection domain of the present utility model is not limited to such special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combinations that do not break away from this utility model essence according to disclosed these technology enlightenments of this utility model, and these distortion and combination are still in protection domain of the present utility model.
Claims (3)
1. tooth jaw movement locus recording equipment, it is characterized in that, specifically comprise: wireless transmission unit, processor unit, pulse generation unit, ultrasonic transduction transmitting element, ultrasonic transduction receiving element, the upper jaw headstock, Signal Pretreatment unit, timing circuit unit and main control computer, wherein
Described ultrasonic transduction transmitting element and ultrasonic transduction receiving element are positioned on the mandibular splint and form a ultrasonic transducer, and processor unit is used for driving the ultrasonic transduction transmitting element work on the mandibular splint and sending ultrasonic signal with the certain frequency impulsing by the control impuls generating unit; The ultrasonic signal that returns through upper jaw headstock back reflection is received and produces the signal of telecommunication by the ultrasonic transduction receiving element on the mandibular splint; The signal of telecommunication that produces entered the Signal Pretreatment unit and produced the signal that timing circuit can be identified, and the time difference signal that timing circuit produces is received by the processor unit, and described time difference signal is used for calculating the distance between mandibular splint, the upper jaw headstock; The wireless transmission unit that is connected with processor unit is transferred to main control computer with range information, and the data reconstruction of the transmission of the wireless transmission unit that the main control computer basis receives goes out movement locus and then obtains tooth and close the frame parameter, shift jaw relationship.
2. tooth jaw movement locus recording equipment according to claim 1, it is characterized in that, described processor unit comprises every straight filtering subelement, one-level and amplifies subelement and the adjustable subelement of two stage gains, describedly amplifies subelement and the adjustable subelement of stage gain of being connected connects successively every straight filtering subelement, one-level.
3. tooth jaw movement locus recording equipment according to claim 1 is characterized in that, the described upper jaw headstock is specially the arc upper jaw headstock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298938 CN202724029U (en) | 2012-06-25 | 2012-06-25 | Recording unit of teeth and jaw motion curve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298938 CN202724029U (en) | 2012-06-25 | 2012-06-25 | Recording unit of teeth and jaw motion curve |
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| CN202724029U true CN202724029U (en) | 2013-02-13 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102715965A (en) * | 2012-06-25 | 2012-10-10 | 电子科技大学 | Dental jaw movement locus recording device and dental jaw relationship transferring method |
| CN103690173A (en) * | 2014-01-08 | 2014-04-02 | 中山大学 | System and method for capturing and visualizing mandibular three-dimensional motion |
| CN105590326A (en) * | 2014-10-23 | 2016-05-18 | 北京大学口腔医学院 | Mandibular kinesiograph tracking device and control method based on two-eye computer vision |
| TWI616193B (en) * | 2016-12-19 | 2018-03-01 | 財團法人金屬工業硏究發展中心 | Oral-occlusal path measurement device, method of sensing an oral occlusion motion of an oral cavity, and device for sensing movement of an oral cavity |
| CN112494066A (en) * | 2019-09-16 | 2021-03-16 | 北京航空航天大学 | Neck ultrasonic probe fixing device applied to vocal organ motion visualization |
-
2012
- 2012-06-25 CN CN 201220298938 patent/CN202724029U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102715965A (en) * | 2012-06-25 | 2012-10-10 | 电子科技大学 | Dental jaw movement locus recording device and dental jaw relationship transferring method |
| CN102715965B (en) * | 2012-06-25 | 2014-07-16 | 电子科技大学 | Dental jaw movement locus recording device and dental jaw relationship transferring method |
| CN103690173A (en) * | 2014-01-08 | 2014-04-02 | 中山大学 | System and method for capturing and visualizing mandibular three-dimensional motion |
| CN105590326A (en) * | 2014-10-23 | 2016-05-18 | 北京大学口腔医学院 | Mandibular kinesiograph tracking device and control method based on two-eye computer vision |
| CN105590326B (en) * | 2014-10-23 | 2018-07-24 | 北京大学口腔医学院 | Tooth crowding tracks of device based on computer binocular vision and control method |
| TWI616193B (en) * | 2016-12-19 | 2018-03-01 | 財團法人金屬工業硏究發展中心 | Oral-occlusal path measurement device, method of sensing an oral occlusion motion of an oral cavity, and device for sensing movement of an oral cavity |
| CN112494066A (en) * | 2019-09-16 | 2021-03-16 | 北京航空航天大学 | Neck ultrasonic probe fixing device applied to vocal organ motion visualization |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130213 Effective date of abandoning: 20140716 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20130213 Effective date of abandoning: 20140716 |
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| RGAV | Abandon patent right to avoid regrant |