CN219121301U - Simulator for measuring length of root canal in vitro exercise - Google Patents
Simulator for measuring length of root canal in vitro exercise Download PDFInfo
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- CN219121301U CN219121301U CN202223286486.9U CN202223286486U CN219121301U CN 219121301 U CN219121301 U CN 219121301U CN 202223286486 U CN202223286486 U CN 202223286486U CN 219121301 U CN219121301 U CN 219121301U
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Abstract
The utility model relates to the technical field of root canal length measurement, and discloses a simulation device for measuring the length of an in-vitro exercise root canal, which comprises a simulated oral cavity, simulated teeth, a root canal file and a root canal length measuring instrument, wherein a resistance layer is arranged in the root canal of the simulated teeth, the resistance value of the resistance layer gradually changes along the depth of the root canal, the root canal length measuring instrument comprises a lip hook, a file clamp and a control panel, the lip hook and the file clamp are electrically connected with the control panel through wires, the lip hook is used for hooking on the simulated oral cavity, and the file clamp is used for being connected with the root canal file. When practicing root canal length measurement, fix the file clamp on the root canal file, lip hook is on simulation oral cavity, root canal file cartridge makes root canal file and the intraductal resistance layer contact of root canal, and medical science can obtain root canal file male specific degree of depth according to the resistance that root canal length measuring apparatu shows to experience root canal file's root point has friction but not obvious effect of resistance, realize the effect that external exercise used root canal length measuring apparatu.
Description
Technical Field
The utility model relates to the technical field of root canal length measurement, in particular to a simulation device for measuring the length of a root canal in an in-vitro exercise.
Background
The root canal therapy is based on the principle that most of the infectious agents in the root canal are removed mechanically and chemically, and the root canal is tightly closed by filling the root canal, preventing the occurrence of periapical lesions or promoting the healing of periapical lesions that have already occurred. Before root canal treatment, the root canal length of the patient teeth needs to be measured, and the root canal length measuring instrument is an instrument for measuring the length of the root canal of the human teeth, and can assist doctors to measure the actual length from the tooth root canal to the tooth root tip region.
The root canal length measuring instrument consists of a lip hook, a file clamp, a connecting line and a control panel, wherein the lip hook is used for contacting an oral mucosa of a patient, the file clamp is used for contacting a root canal file entering a root pressing part, an indication area, a root tip reminding area and a root tip outer area are arranged on the control panel, and the working principle of the root canal length measuring instrument is that the oral mucosa of a population is consistent with the root tip Zhou Yazhou membrane resistance, the double-frequency difference value is the same. When the root canal length measuring instrument works, the root canal file is inserted into the root canal of a tooth, so that the detection result is optimal when the root canal file has certain friction force in the root apex area of the tooth root but does not form obstruction.
The determination of root canal length is extremely important in the root canal treatment process, determines success or failure of root canal treatment, grasps the use of the instrument, not only comprises familiarity of instrument operation steps and grasp of the use points of each part of the instrument, but also comprises understanding of friction feeling of the file in the root canal during the measurement of length, namely culturing of hand feeling.
Based on the principle that the intraoral mucosa of the root canal length measuring instrument is consistent with the root tip Zhou Yazhou membrane resistance, the existing root canal length measuring instrument is only limited to be applied to a human body, and an oral student cannot directly contact the root canal length measurement before contacting a patient, so that the oral student can measure the root canal length for the first time, namely, the oral mucosa is in the mouth of the patient, tension and confusion are easy to occur, and more teaching resources are required to be spent for on-site guidance.
Disclosure of Invention
The purpose of the utility model is that: a simulator for measuring the length of root canal in vitro is provided, so that the students of stomatology can practice the use of the length measuring instrument of root canal in vitro in advance without the need of patients.
In order to achieve the above object, the utility model provides an in-vitro practicing root canal length measuring simulation device, which comprises a simulated oral cavity, simulated teeth, a root canal file and a root canal length measuring instrument, wherein a resistance layer is arranged in the root canal of the simulated teeth, the resistance value of the resistance layer gradually changes along the depth of the root canal, the root canal file is used for being inserted into the root canal of the simulated teeth, the root canal length measuring instrument comprises a lip hook, a file clamp and a control panel, the lip hook and the file clamp are electrically connected with the control panel through wires, the lip hook is used for being hooked on the simulated oral cavity, and the file clamp is used for being connected with the root canal file.
Preferably, the resistance layer comprises a first resistance layer, a second resistance layer and a third resistance layer with gradually increased resistance values, the first resistance layer, the second resistance layer and the third resistance layer are arranged at the root tip position of the root canal, and the first resistance layer, the second resistance layer and the third resistance layer are sequentially arranged from the top to the bottom of the root canal.
Preferably, the depths of the first resistance layer, the second resistance layer and the third resistance layer are all 1mm.
Preferably, the resistance value of the first resistance value layer is R, the resistance value of the second resistance value layer is 5R, and the resistance value of the third resistance value layer is 20R.
Preferably, the resistance layer further comprises a fourth resistance layer, and the fourth resistance layer is arranged outside the root tip of the root canal.
Preferably, a positioning mark is further arranged on the root canal file, and the positioning mark is used for positioning the insertion depth of the root canal file when the root canal file is inserted in place.
Preferably, the positioning mark is an elastic sleeve sleeved on the root canal file, and the elastic sleeve is elastically fixed on the root canal file.
Preferably, the root canal file is of a conical structure, and the width and the taper of the root canal file are matched with those of the root canal of the simulated teeth.
Compared with the prior art, the simulator for measuring the length of the root canal in the in-vitro exercise has the beneficial effects that: when practicing root canal length measurement, can fix root canal length measuring apparatu's file clamp on the root canal file, the lip hook is on the simulation oral cavity, with root canal file cartridge in the root canal of simulation oral cavity, make root canal file and the intraductal resistance layer contact of root canal, because the resistance on resistance layer changes along with the degree of depth of root canal, therefore the root canal file inserts the degree of depth of root canal when the resistance on resistance layer that the root canal length measuring apparatu detected is different, the medical science student can obtain root canal file specific depth of insertion according to the resistance that root canal length measuring apparatu shows, and experience root tip of root canal file has the effect of friction but not obvious resistance, cultivate the feel of measuring root canal length and to the perceptibility of root canal file, realize extracorporal exercise and use root canal length measuring apparatu's effect.
Drawings
FIG. 1 is a schematic diagram of the structure of the simulator for measuring the length of an in vitro exercise root canal according to the present utility model;
FIG. 2 is a schematic view of a simulated tooth of the simulated device of the in vitro exercise root canal length measurement of FIG. 1;
figure 3 is a schematic diagram of a simulator for measuring the length of an in vitro exercise root canal according to the present utility model.
In the figure, 1, a simulated oral cavity, 2, a simulated tooth, 21, a first resistance layer, 22, a second resistance layer, 23, a third resistance layer, 24, a fourth resistance layer, 3, a root canal file, 4, a root canal length measuring instrument, 41, a lip hook, 42, file clamps, 43, a control panel, 5 and a positioning mark.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
A preferred embodiment of the simulation device for measuring the length of an in vitro exercise root canal according to the present utility model, as shown in fig. 1 to 3, comprises a simulated oral cavity 1, simulated teeth 2, a root canal file 3 and a root canal length measuring instrument 4.
The simulated teeth 2 are arranged on the simulated oral cavity 1 and are used for simulating the oral cavity of a human body and diseased tooth structures, the root canal file 3 is used for being inserted into a root canal of the simulated teeth 2, the depth of the root canal of the simulated teeth 2 is measured, and the root canal length measuring instrument 4 can adopt the existing finished equipment for medical students to practice and measure the length of the root canal of the simulated teeth 2.
A resistance layer is arranged in the root canal of the simulated teeth 2, and the resistance value of the resistance layer gradually changes along the depth of the root canal. When the depth of the root canal file 3 inserted in the root canal of the simulated teeth 2 changes, the root canal file 3 contacts different resistance layers in the root canal, and the root canal length measuring instrument 4 connected with the root canal file 3 can display the specific depth of the root canal file 3 in the root canal according to the difference of the resistance values, so that a training person can determine the position of the root canal file 3, experience the hand feeling of the root canal file 3 when reaching different depths, and the perception capability suitable for the root canal file 3 is trained, and the required clinical experience is directly accumulated.
The root canal length measuring instrument 4 comprises a lip hook, a file clamp and a control panel, wherein the lip hook and the file clamp are electrically connected with the control panel through wires, the lip hook is used for being hooked on the simulated oral cavity 1, and the file clamp is used for being connected with the root canal file 3. The file clamp is connected with the root canal file 3 and then forms a circuit with the root canal length measuring instrument 4; the lip hook is hooked on the simulated oral cavity 1 and does not participate in the circuit of the root canal length measuring instrument 4, and is used for reflecting the step that the root canal length measuring instrument 4 contacts with an oral cavity inner membrane when in use.
When practicing root canal length measurement, can fix root canal length measuring apparatu 4's file clamp on root canal file 3, the lip hook is on simulation oral cavity 1, with root canal file 3 cartridge in the root canal of simulation oral cavity 1, make root canal file 3 and the interior resistance layer contact of root canal, because the resistance on resistance layer changes along with the degree of depth of root canal, therefore root canal file 3 inserts the degree of depth of root canal when the resistance on resistance layer is different, root canal length measuring apparatu 4 detects the resistance on resistance layer is different, the medical science can obtain root canal file 3 specific degree of depth of inserting according to the resistance that root canal length measuring apparatu 4 shows, and experience root canal file 3's root point has the friction but does not have obvious resistance's effect, cultivate the feel of measuring root canal length and to root canal file 3's perceptibility, realize the effect of extracorporeally practicing and using root canal length measuring apparatu 4.
Preferably, the resistance layer includes a first resistance layer 21, a second resistance layer 22 and a third resistance layer 23 with gradually increasing resistance values, the first resistance layer 21, the second resistance layer 22 and the third resistance layer 23 are arranged at the root tip position of the root canal, and the first resistance layer 21, the second resistance layer 22 and the third resistance layer 23 are sequentially arranged from the top to the bottom of the root canal.
The resistance layer is divided into a first resistance layer 21, a second resistance layer 22 and a third resistance layer 23, the first resistance layer 21, the second resistance layer 22 and the third resistance layer 23 are arranged at the root tip position, and when the root canal file 3 is inserted into the root tip position, the resistance layer is contacted with one of the first resistance layer 21, the second resistance layer 22 and the third resistance layer 23, and the tip of the root canal file 3 can be simply judged to be positioned in which resistance layer according to the resistance value displayed by the root canal length measuring instrument 4, so that the insertion depth of the root canal file 3 is judged.
Preferably, the depths of the first resistance layer 21, the second resistance layer 22 and the third resistance layer 23 are all 1mm.
The depth of each resistance layer is 1mm, namely the depth coverage range of each resistance layer is 1mm, the first resistance layer 21 is 0-1mm at the root tip, the second resistance layer 22 is 1-2mm at the root tip, the third resistance layer 23 is 2-3mm at the root tip, and the distance refers to the distance between each resistance layer and the upper opening of the root canal of the tooth.
The covering depth of 1mm accords with the change amount of the root canal file 3 when being inserted every time, the root canal file 3 and different resistance layers of the part act, and the host computer of the root canal length measuring instrument 4 finally displays specific resistance, which is equivalent to calibrating the resistance value of each 1mm in advance, and can be used for a training person to judge the accurate interval of the root canal file 3 under a fixed voltage value.
Because the surface areas of the root canal at different depths are different in size and cannot be completely equivalent to sliding variable resistance, the state of the root canal file 3 at the nodes of different resistance layers is emphasized to be detected without determining the current position information, and the different resistance layers are 1mm deep and can be used for a training person to judge the approximate depth of the root canal file 3.
Preferably, the resistance of the first resistance layer 21 is R, the resistance of the second resistance layer 22 is 5R, and the resistance of the third resistance layer 23 is 20R.
The difference of the resistance values of the different resistance value layers is larger, the voltage and current of the circuit are changed greatly, and the insertion position change of the root canal file 3 can be judged conveniently.
As shown in FIG. 3, the resistance of the display device of the root canal length measuring instrument 4 is 5R, when the root canal file 3 is 2-3mm away from the root tip, the lowest switch is closed, the root canal length measuring instrument 4 detects a power supply voltage of 5/31-5/11, and an exerciser can judge that the current root canal file 3 is 3mm away from the root tip; when the root canal file 3 is at the 1-2mm position of the root tip, the middle switch is closed, the root canal length measuring instrument 4 detects the power voltage of 5/11-6/11, and an exerciser can judge that the current root canal file 3 is at the 2mm position of the root tip; when the root canal file 3 is at the position of 0-1mm of the root tip, the uppermost switch is closed, the root canal length measuring instrument 4 detects that the voltage is 5/6-1 power supply voltage, and an exerciser can judge that the current root canal file 3 is positioned at the position of 1mm of the root tip; when the root canal file 3 exceeds the root canal, the circuit is closed, and the voltage of the root canal length measuring instrument 4 is about the power voltage, the external equipment displays the current state, and the root canal length measuring instrument 4 can carry out alarming and reminding. When the training personnel judges the specific position of the root canal file 3, the root canal length measuring instrument 4 can remind through the light effect of different colors or other modes, so that the training personnel can make judgment.
Preferably, the resistive layer further comprises a fourth resistive layer 24, the fourth resistive layer 24 being disposed outside the root tip of the root canal.
The fourth resistance layer 24 is arranged outside the root tip of the root canal, and is contacted with the fourth resistance layer 24 when the root canal file 3 is inserted beyond the root tip of the root canal, so that a training person can judge the position of the root canal file 3. In the present embodiment, the depth of the fourth resistance layer 24 is 1mm. In other embodiments, the fourth resistance layer 24 may not be required.
Preferably, a positioning mark 5 is also arranged on the root canal file 3, the positioning mark 5 being used for positioning the insertion depth of the root canal file 3 when the root canal file 3 is inserted in place.
After the root canal file 3 is inserted into the root canal tip, and when the practitioner reaches a proper depth, the practitioner can fix the positioning mark 5 on the root canal file 3 and in contact with the tip of the simulated teeth 2, the root canal file 3 can be taken out, and the precise distance between the positioning mark 5 and the tip of the root canal file 3 is measured by the measuring scale, thereby determining the root canal depth.
Preferably, the positioning mark 5 is an elastic sleeve sleeved on the root canal file 3, and the elastic sleeve is elastically fixed on the root canal file 3.
The elastic sleeve is adopted as the positioning mark 5, so that the structure of the positioning mark 5 is simplified, and the elastic sleeve can be fixed on the root canal file 3 by utilizing elastic deformation of the elastic sleeve, so that the fixing is convenient. In this embodiment, the specific material of the elastic sleeve is rubber.
Preferably, the root canal file 3 is of a conical structure, and the width and the taper of the root canal file 3 are matched with the root canal of the simulated teeth 2.
The root canal file 3 is matched with the width and the taper of the root canal of the simulated teeth 2, the effect that the root tip has friction but has no obvious resistance can be achieved, the stomatology gives birth to the hand feeling of measuring the length of the root canal, the perception capability of selecting a proper root canal file 3 is also greatly exercised, and the required clinical experience can be directly accumulated.
In summary, the embodiment of the utility model provides an in-vitro practicing root canal length measurement simulation device, which can fix a file clamp of a root canal length measurement instrument on a root canal file, hook a lip on a simulated oral cavity, insert the root canal file into the root canal of the simulated oral cavity, and enable the root canal file to be in contact with a resistance layer in the root canal.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.
Claims (8)
1. The utility model provides an external exercise root canal length measuring analogue means, its characterized in that, including simulation oral cavity, simulation tooth, root canal file and root canal length measuring apparatu, be provided with the resistance layer in the root canal of simulation tooth, the resistance value on resistance layer is along the degree of depth gradual change of root canal, the root canal file be used for the cartridge in the root canal of simulation tooth, root canal length measuring apparatu includes lip hook, file clamp and control panel, lip hook and file clamp all pass through the wire with the control panel electricity is connected, the lip hook is used for the hook to be in on the simulation oral cavity, file clamp be used for with root canal file is connected.
2. The simulation device for measuring the length of the root canal of the in-vitro exercise according to claim 1, wherein the resistance layer comprises a first resistance layer, a second resistance layer and a third resistance layer with gradually increased resistance values, the first resistance layer, the second resistance layer and the third resistance layer are arranged at the root tip position of the root canal, and the first resistance layer, the second resistance layer and the third resistance layer are sequentially arranged from the top to the bottom of the root canal.
3. The simulator of claim 2, wherein the first, second, and third resistive layers each have a depth of 1mm.
4. The device for simulating the measurement of the length of an in vitro practicing root canal according to claim 2, wherein the first resistance layer has a resistance of R, the second resistance layer has a resistance of 5R, and the third resistance layer has a resistance of 20R.
5. The device for simulating measurement of length of root canal for in vitro exercise according to claim 2, wherein the resistive layer further comprises a fourth resistive layer disposed outside the root tip of the root canal.
6. An in vitro training root canal length measurement simulation device according to any of the claims 1-5, wherein a positioning marker is arranged on the root canal file for positioning the insertion depth of the root canal file when the root canal file is inserted in place.
7. The device for simulating measurement of an external exercise root canal length according to claim 6, wherein the positioning mark is an elastic sleeve which fits over the root canal file, the elastic sleeve being elastically secured to the root canal file.
8. A simulation device for in vitro practicing root canal length measurement according to any of the claims 1-5, wherein the root canal file is of conical configuration, the width, taper of the root canal file being adapted to the root canal of the simulated teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223286486.9U CN219121301U (en) | 2022-12-07 | 2022-12-07 | Simulator for measuring length of root canal in vitro exercise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223286486.9U CN219121301U (en) | 2022-12-07 | 2022-12-07 | Simulator for measuring length of root canal in vitro exercise |
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| Publication Number | Publication Date |
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| CN219121301U true CN219121301U (en) | 2023-06-02 |
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| CN202223286486.9U Active CN219121301U (en) | 2022-12-07 | 2022-12-07 | Simulator for measuring length of root canal in vitro exercise |
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2022
- 2022-12-07 CN CN202223286486.9U patent/CN219121301U/en active Active
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