CN109925084A - A kind of coupling type apex radicis dentis position indicator - Google Patents

Abstract

The invention relates to a hook-type root apex locator, which comprises a casing, a hook fixedly installed on one end of the casing, a file connected to the other end of the casing through a data cable, and a control panel arranged in the casing, the hook is suspended On the lips, the casing is directly suspended under the hook, and a display mechanism for displaying the length of the root apex is arranged on the surface of the casing. The display mechanism, the hook and the file are all electrically connected to the control panel. The hook of the root apex locator of the present invention is fixedly arranged at one end of the housing. During operation, when the hook is hung on the lips, the housing is directly hung under the hook, that is, it is set at the position of the patient's chin, which is convenient for the operator to view the display at the same time while operating. Data information displayed by the institution.

Description

A hook-type apex locator

technical field

The invention relates to a root canal treatment preparation device, in particular to a hook-type root apex locator.

Background technique

Root canal therapy, also known as endodontic treatment, is an operation in dentistry to treat pulp necrosis and root infection. The steps include root canal preparation, root canal disinfection and root canal filling. The requirement of root canal preparation is that the end point of the root apex after preparation ends at the cementum bone boundary (1mm away from the root apex), which is the junction of the pulp tissue and the periapical tissue. Trauma and inflammation of the periapical components. Therefore, it is very important to accurately determine the working length of the root canal before root canal preparation.

The root apex locator is a precise electronic instrument used to measure the working length of the root canal. As shown in FIG. 1, the existing apex locator includes a main body 11, a data cable 12, a hook 13 and a file needle 14. One end of the data cable 12 is connected to the main body 11, and the other end is connected to the hook 13 and the file needle 14, respectively. The length of the data cable 12 is 1.5m. During operation, the body 11 is placed on the working platform 15, the hook 13 is hung on the lips, the file needle 14 is inserted into the root canal, and a closure is formed between the hook 13, the file needle 14 and the oral cavity. Circuit, when the file needle 14 is continuously inserted, the resistance value of the closed circuit is constantly changing. In actual operation, the area where the body is placed is far away from the operation area, and the operator needs to keep turning the body or head during the operation. Viewing the data information on the main body display screen brings inconvenience to the operator, and the data cable is long and the space span is large, which is prone to unexpected situations. to hooks and files and injure the patient.

SUMMARY OF THE INVENTION

The invention provides a hook-type root apex locator which is simple and compact in structure and can be operated and observed at the same time.

The technical solution adopted by the present invention to solve the above technical problems is as follows: the hook-type root apex locator comprises a housing, a hook fixedly installed on one end of the housing, a file connected to the other end of the housing through a data cable, and a file arranged on the housing. In the control panel inside the body, the hook is hung on the lips, the shell is directly hung under the hook, the surface of the shell is provided with a display mechanism for displaying the length of the root tip, and the display mechanism, the hook and the file are all electrically connected to the control panel.

One end of the data cable is connected with the control panel, the other end is connected with a file clip, and a file needle is clamped in the file clip.

Wherein, a buzzer is installed in the casing, and the buzzer is electrically connected with the control panel.

Among them, the display mechanism is a digital display screen.

Wherein, the display mechanism is a row of LED light bars, the LED light bars are arranged on the casing in parallel, and the edge of each LED light bar is provided with a numerical value representing the depth.

Wherein, the display mechanism is a row of annular lamp posts, the annular lamp posts are arranged on the casing in a row, and the edge of each annular lamp post is provided with a numerical value representing the depth.

Compared with the prior art, the hook of the root apex locator of the present invention is fixedly arranged at one end of the housing. During operation, when the hook is hung on the lips, the housing is directly hung under the hook, that is, it is set at the position of the patient's chin, which is convenient for the operator. While operating, you can view the data information displayed by the display mechanism in real time; and the length of the data cable is shortened, the overall working environment is more concise, the installation and use of the equipment are more convenient, and the occurrence of unexpected situations is largely avoided.

Description of drawings

FIG. 1 is a schematic structural diagram of a conventional tooth root apex locator.

FIG. 2 is a schematic structural diagram of a hook-type apex locator according to the present invention.

FIG. 3 is a schematic diagram of the control mode of the hook-type apex locator of the present invention.

Detailed ways

The present invention will be further described in detail below with reference to the embodiments of the accompanying drawings.

As shown in FIG. 2 , the hook-type apex locator of the present invention includes a housing 1, a hook 2 fixedly installed on one end of the housing 1, a file 4 connected to the other end of the housing 1 through a data cable 5, and a file 4 arranged on the housing 1. The control panel (not shown in the figure) in the body 1, the hook 2 is hung on the lips, the shell 1 is directly suspended under the hook 2, and the surface of the shell 1 is provided with a display mechanism 6 for displaying the length of the root apex. The display mechanism 6, Both the hook 2 and the file needle 4 are electrically connected to the control panel. When the hook 2 is hung on the lips, and the file needle 4 is inserted into the root canal, a closed circuit is formed. As the file needle 4 goes deeper, the resistance value of the closed circuit also changes continuously.

One end of the data cable 5 is connected with the control panel, and the other end is connected with a file clip 3, and a file needle 4 is clamped in the file clip 3, which facilitates the continuous replacement of the file needle 4 and avoids bacterial infection.

A buzzer is installed in the housing 1, and the buzzer is electrically connected to the control panel. When the buzzer sounds, it reminds the operator to stop the insertion of the file to avoid trauma and inflammation to the periapical components.

The above-mentioned display mechanism 6 is a digital display screen, which directly displays the insertion depth of the file on the display screen in a digital manner. The display mechanism 6 can also be a row of LED light bars. The LED light bars are arranged on the housing 1 in parallel, and the edge of each LED light bar is provided with a numerical value representing the depth, and the numerical value gradually increases from bottom to top or from top to bottom. Increase, with the continuous insertion of the file needle, the LED light bars light up one by one, and the value of the edge of the LED light bar that finally lights up is the depth of insertion of the file needle at this time; of course, the LED light bar row can also be replaced by a ring light column. The annular lamp posts are arranged on the housing 1 in a row, and a numerical value representing the depth is set on the edge of each annular lamp post, and the principle is the same as the above-mentioned LED lamp row.

The above-mentioned file clip 3 is provided with a displacement sensor (not shown in the figure), which is used to detect the insertion depth of the file needle. The displacement sensor is electrically connected with the control panel, and the control panel transmits the information collected by the displacement sensor to the display mechanism. The information is reflected on the display mechanism to facilitate the operator to understand the operation status.

The above-mentioned control panel is provided with a resistance measurement module, a transmission module and an analysis module. The resistance measurement module is electrically connected with the hook and the file needle to measure the resistance value of the above closed circuit, and the transmission module is used to transmit the measured resistance value to the analysis module. The module is also used to transmit the information of the sensor to the display mechanism. The analysis module is connected to the buzzer to compare the resistance value with the preset resistance value. When the tip of the file needle reaches the apical area, the signal is transmitted. Give the buzzer to make a sound to remind the operator to stop inserting the file. At this time, the value realized by the display is the apex length of the tooth.

As shown in Figure 3, when the hook-type root apex locator of the present invention is in use, the file is inserted into the root canal of the tooth, connected to the control panel circuit, and then another electrode of the control circuit is connected to the hook circuit hanging on the lips, To form a working circuit, the file needle sends out two currents of different frequencies in the root canal of the tooth, an 8K high-frequency excitation signal and a 400Hz low-frequency excitation signal, and the control panel measures the ratio of the resistance values of the two currents passing through the root canal (this ratio does not vary. Influenced by the electrolyte in the root canal), the analysis module determines the position of the file tip in the root canal by analyzing and comparing the ratio of the above resistance values, and transmits the value of the position of the file tip in the root canal to the display mechanism. The operator checks the position of the file tip in the root canal at this time. When the file tip reaches the apical area, the buzzer will sound an alarm, and the value displayed on the display at this time is the root apex length.

The hook of the root apex locator of the present invention is fixedly arranged at one end of the casing. During operation, when the hook is hung on the lips, the casing is directly suspended under the hook, that is, it is set at the position of the patient's chin, which is convenient for the operator to view the display immediately while operating. Data information displayed by the institution.

Finally, it should be noted that the above embodiments only illustrate the technical solutions of the present invention, rather than limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: The technical solutions described in the embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (6)

1. a kind of coupling type apex radicis dentis position indicator, it is characterised in that: the apex radicis dentis position indicator includes shell (1), is fixedly mounted Hook (2) in the shell (1) one end is connected to the file needle (4) of the shell (1) other end by data line (5), and The control panel being set in the shell (1), the hook (2) hang on lip, and the shell (1) directly hangs on institute It states below hook (2), shell (1) surface is provided with the indication mechanism (6) of display apex radicis dentis length, the indication mechanism (6), the hook (2), the file needle (4) are electrically connected with the control panel.

2. coupling type apex radicis dentis position indicator according to claim 1, which is characterized in that one end of the data line (5) with The control panel connection, the other end are connected with file folder (3), are clamped with the file needle (4) in the file folder (3).

3. coupling type apex radicis dentis position indicator according to claim 1, which is characterized in that be equipped with bee in the shell (1) Ring device, and the buzzer and the control panel are electrically connected.

4. coupling type apex radicis dentis position indicator according to claim 1, which is characterized in that the indication mechanism (6) is number Display screen.

5. coupling type apex radicis dentis position indicator according to claim 1, which is characterized in that the indication mechanism (6) is LED light Item row, the LED light bar are arranged in parallel on the shell (1), and the edge of every LED light bar is provided with expression depth The numerical value of degree.

6. coupling type apex radicis dentis position indicator according to claim 1, which is characterized in that the indication mechanism (6) is annular Lamppost row, the annular lamppost are set in a row on the shell (1), and the edge of each annular lamppost is provided with a table Show the numerical value of depth.