Intelligent tester for accurately judging dental pulp health condition

Abstract

The utility model discloses an intelligent tester for accurate judgment dental pulp health condition belongs to oral cavity instrument technical field, including detachable work head, insulating protective sleeve, conductor, circuit system, holding handle, charging base, mouth corner hook and test line, detachable work head is cylindrical curved metal device, and the lower end outer diameter is matched with the inner diameter of insulating protective sleeve. Insulating protective sleeve surrounds detachable work head, makes detachable work head partial insulation and lower end contact conductor. The conductor upper end is contacted with the lower end of detachable work head, and is connected with device circuit system below, and temperature and current are controlled by circuit system. The test line is connected with circuit system, and the outer end is connected with mouth corner hook, and is contacted with patient's oral cavity. Circuit system collection control system, power supply system, functional circuit are integrated, and functional circuit collection semiconductor refrigeration, electric heating wire heating, electric pulse three circuit module series and parallel connection, and control system is composed of control panel, control switch, master switch. Holding handle lower end connects charging interface, and is connected with the electric plug -in sheet on charging base.

Description

Technical Field

[0001] This invention relates to the field of dental instrument technology, and in particular to an intelligent testing instrument for accurately assessing the health status of dental pulp. Background Technology

[0002] Pulp vitality testing is the most commonly used and crucial clinical method for assessing pulp health. It is clinically applied to diagnose common oral diseases such as dental caries, pulpitis, and periapical periodontitis. Vitality testing includes temperature testing and electrical vitality testing. Temperature testing is further divided into cold and hot testing. Its purpose is to determine the pulp health by observing the tooth's response to temperature and electrical stimulation, thus clarifying the diagnosis and guiding the selection of treatment plans and clinical strategies. Therefore, accurately assessing pulp health ensures a high success rate in the diagnosis and treatment of dental caries, pulpitis, and periapical periodontitis. Normal teeth tolerate temperatures between 20 and 50°C. Different pulp conditions result in different responses to temperature testing, ranging from normal, sensitive, sluggish, or no response. Electrical stimulation (≤0.2mA) may or may not elicit sensation. Clinically, a combination of cold / hot temperature stimulation and electrical stimulation is usually required to objectively assess pulp vitality.

[0003] Currently, clinical practice involves three different methods to diagnose pulp vitality: cold testing with ice sticks or tetrafluoroethane, hot testing with heated gutta-percha sticks, and electrical vitality testing with an electrical vitality meter. This is cumbersome, time-consuming, costly, and labor-intensive. Furthermore, the hot testing method, which involves heating the gutta-percha stick until it just begins to smoke, is highly sensitive and could potentially cause burns to the patient's mucosa or skin due to improper handling, increasing medical risks. Therefore, clinical application requires an integrated intelligent pulp vitality meter that can cool and heat as needed and control the current intensity. This would ensure clinical safety while providing a comprehensive and accurate assessment of the pulp condition based on cold testing, hot testing, and current response results. This would assist physicians in making a clear diagnosis, guiding the selection of clinical treatment plans, ensuring treatment success rates, and ultimately preserving more natural teeth for patients. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent testing instrument for accurately assessing the health status of dental pulp, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an intelligent testing instrument for accurately assessing the health status of dental pulp, comprising a detachable working head, an insulating protective sleeve, a conductor, a circuit system, a grip handle, a charging base, a corner hook, and a test lead. The detachable working head is a cylindrical, bent metal device, with its lower end matching the inner diameter of the insulating protective sleeve. The upper end of the conductor contacts the lower end of the detachable working head, and its lower end is connected to the circuit system, which controls the temperature and current. The test lead is internally connected to the circuit system, and its outer end connects to the corner hook, making contact with the patient's oral cavity. The circuit system integrates a control system, a power supply system, and functional circuits. A charging interface is provided at the lower end of the grip handle, which connects to a power connector on the charging base to supply power to the circuit system.

[0006] Preferably, by designing a detachable working head, insulating protective sleeve, conductor, circuit system, grip handle, charging base, corner hook, and test leads, the working head can be disassembled for storage or sterilization, ensuring aseptic principle. Temperature test mode and electrical test mode can be selected as needed to comprehensively judge pulp vitality, improve treatment efficiency and accuracy, prevent the occurrence of complications during testing, and improve treatment success rate, making it suitable for clinical application.

[0007] Preferably, the upper curved portion of the detachable working head has a diameter of 2mm and is a cylindrical metal structure, which conforms to the ergonomics of the operator, making it easy to fit snugly against the tooth surface for vitality testing and ensuring operational accuracy. The lower diameter is 1mm to ensure compatibility with the insulating protective sleeve and to avoid being too bulky and obstructing the operator's field of vision.

[0008] Preferably, the insulating protective sleeve is made of polyvinyl chloride, which has good insulation, heat resistance, and plasticity, and has a thickness of 0.5 mm. It wraps around the lower end of the detachable working head to prevent current and hot / cold stimuli from touching the patient's oral mucosa and causing false negative or false positive results or damage to the oral mucosa.

[0009] Preferably, the upper end of the conductor contacts the metal part of the detachable working head to transmit current and temperature stimulation, and the lower end is connected to the circuit system, and the temperature and current are controlled by the control switch of the handle.

[0010] Preferably, the circuit system integrates the control system, power supply system, and functional circuits. The functional circuits utilize three circuit modules connected in series and parallel: semiconductor cooling, heating wire heating, and electrical pulse stimulation. A PID temperature control system selects which module to connect to based on temperature, thus achieving low and high temperatures at the tip of the working head. A high-frequency voltage transmitter is connected in series with the electrical pulse control system for electrical stimulation control. The control system consists of a control panel, control switches, and a main switch to control the internal circuits and display pulp vitality values.

[0011] Preferably, the handle is cylindrical, ergonomically designed for easy grip and comfortable operation. Made of ABS plastic, it is sturdy and durable, ensuring the internal circuitry operates without external interference. A charging port is located at the bottom, connecting to the power connector on the charging base; it is water-resistant and facilitates charging.

[0012] As a preferred option, the charging base is designed with a trapezoidal base structure, which facilitates the stability of the device during charging, ensures the safety of the device, and makes it easy to pick up.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. Currently, there is a lack of instruments in clinical practice that can comprehensively assess the condition of the dental pulp by simultaneously combining the results of cold pulp vitality testing, hot pulp testing, and electrical stimulation. Clinical examination of the dental pulp health requires three different testing methods, which is complex, time-consuming, costly, and labor-intensive. This intelligent testing instrument for accurately assessing the health of the dental pulp can save testing costs and the time spent replacing instruments, thereby improving the efficiency of clinicians.

[0015] 2. Currently, the ice pops used for clinical cold testing are cumbersome to manufacture, and tetrafluoroethane is a consumable and expensive component. Hot testing is technically sensitive; improper operation can burn the patient's mucous membranes or skin, leading to medical disputes. Clinically used electrical vitality testing devices are independent medical devices that need to be purchased and used separately. This intelligent testing device, designed for accurately assessing pulp health, can save costs, prevent complications from hot testing, improve the patient experience, and reduce the hospital's procurement burden.

[0016] 3. A detachable working head is designed, which is inserted and fixed to the insulating protective sleeve by friction. The direction of the working head can be adjusted by rotating it according to the position of the tooth being measured when the circuit is off. This not only reduces consumables by allowing it to be reused after disinfection, but also makes it convenient for doctors to use and improves work efficiency.

[0017] 4. Utilizing a combination of a semiconductor thermoelectric cooler and heating wire under PID temperature control, along with a high-frequency voltage-controlled electrical pulse control system, this device achieves integrated operation including adjustable temperature, controllable electrical stimulation, and panel display. It allows for quick and convenient adjustment of the required temperature and electrical stimulation intensity, suitable for comprehensive assessment of various pulp vitality and conditions, exhibiting high sensitivity and comprehensiveness. To achieve rapid and precise temperature control, the device offers three temperature settings: low (-10℃), medium (30℃), and high (60℃). The low temperature activates the semiconductor cooling mode, while the high temperature activates the heating wire mode, making operation simple and fast. The medium temperature mode simultaneously activates both the semiconductor and heating wire to reach the temperature tolerable by normal pulp, with precise temperature control achieved through PID temperature control. Simultaneously, the electrical vitality test, under high-frequency voltage control, precisely controls the voltage output of the electrical pulse control system, enabling pulp vitality testing. The charging base, in conjunction with the circuit system, allows for repeated charging of the pulp vitality tester, facilitating use and reducing environmental pollution from batteries. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the internal circuit system of this utility model.

[0020] Figure 3 This is a schematic diagram of the overall operation process of this utility model.

[0021] In the diagram: 1. Detachable working head; 2. Insulating protective sleeve; 3. Conductor; 4. Circuit system; 4a. Control panel; 4b. Control switch; 4c. Main switch; 5. Handle; 5a. Charging interface; 6. Charging base; 6a. Power connector; 7. Corner hook; 8. Test leads. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1This invention provides a technical solution: an intelligent testing instrument for accurately assessing the health status of dental pulp. The detachable working head 1 has a 2mm diameter curved upper section in a cylindrical metal structure for direct contact with the tooth surface. The lower cylindrical metal structure is inserted into an insulating protective sleeve 2, with the exposed metal portion contacting a conductor 3. The conductor 3 is connected in series with a circuit system 4 to perform its function. A test lead 8 is connected to the side and linked to a corner hook 7 at the end, contacting the patient's oral mucosa. The device is mounted on a cylindrical handle 5, with a charging interface 5a at the lower end, connected to a power connector 6a on the upper part of a charging base 6 to ensure power supply to the device.

[0024] Please see Figure 2 Circuit system 4 integrates control system, power supply system and functional circuit. The functional circuit uses three circuit modules connected in series and parallel: semiconductor refrigeration, electric heating wire heating and electric pulse generation for electric stimulation. The control system consists of control panel 4a, control switch 4b and main switch 4c connected in series. Then circuit system 4 is connected in series with conductor 3.

[0025] Please see Figure 2-3 When the device is running, the main switch 4c must be turned on first, and then the electrical test mode or temperature test mode can be selected through the control switch 4b. When using the temperature test mode, the temperature is first selected, and the PID temperature control system tests whether the selected temperature is reached: low temperature (-10℃), medium temperature (30℃), high temperature (60℃). If the temperature is reached, it will be displayed on the control panel 4a; if the temperature is not reached, it returns to PID temperature control until the corresponding temperature is reached. In the electrical activity test mode, the electrical activity mode needs to be selected, with high-frequency voltage output. The output voltage is controlled by the electrical pulse control system to be ≤0.2mA, and the electrical pulse stimulation is turned on and displayed on the control panel 4a.

[0026] Working Principle: When using this intelligent testing instrument for accurately assessing pulp health, the upper cylindrical metal structure of the detachable working head 1 contacts the patient's tooth surface. An insulating protective sleeve 2 surrounds the lower end of the detachable working head 1, and the lower metal part of the detachable working head 1 contacts the conductor 3. During use, the main switch 4c is turned on, and the corresponding mode and temperature are selected in the control switch 4b. Once the temperature is reached, it is displayed on the control panel 4a, and temperature testing can then be performed. When using the electrical vitality test mode, select the appropriate mode in the control switch 4b, and connect the test lead 8 to the corner hook 7, which contacts the patient's inner oral mucosa. After the detachable working head 1 contacts the patient's tooth surface, the reading is displayed on the control panel 4a. The detachable working head 1 can be removed for storage or cleaning when not in use. Content not described in detail in this manual is prior art known to those skilled in the art.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intelligent testing instrument for accurately assessing the health status of dental pulp, characterized in that: The device includes a detachable working head (1), an insulating protective sleeve (2), a conductor (3), a circuit system (4), a grip handle (5), a charging base (6), a corner hook (7), and a test lead (8). The lower end of the detachable working head (1) matches the inner diameter of the insulating protective sleeve (2). The upper end of the conductor (3) contacts the lower end of the detachable working head (1), and the lower end is connected to the circuit system (4). The test lead (8) is internally connected to the circuit system (4), and its outer end is connected to the corner hook (7). The lower end of the grip handle (5) is provided with a charging interface (5a), which is connected to the power connector (6a) on the charging base (6).

2. The intelligent testing instrument for accurately determining the health status of dental pulp according to claim 1, characterized in that: The upper end of the detachable working head (1) is a cylindrical metal structure, and the lower end is adapted to the insulating protective sleeve (2).

3. The intelligent testing instrument for accurately determining the health status of dental pulp according to claim 1, characterized in that: An insulating protective sleeve (2) is wrapped around the lower end of the detachable working head (1).

4. The intelligent testing instrument for accurately determining the health status of dental pulp according to claim 1, characterized in that: The upper end of conductor (3) is in contact with the detachable working head (1).

5. The intelligent testing instrument for accurately determining the health status of dental pulp according to claim 1, characterized in that: The circuit system (4) integrates the control system, power supply system and functional circuit. The functional circuit uses three circuit modules connected in series and parallel: semiconductor refrigeration, electric heating wire heating and electric pulse generation for electric stimulation. The control system consists of a control panel (4a), a control switch (4b) and a main switch (4c) connected in series.

6. The intelligent testing instrument for accurately determining the health status of dental pulp according to claim 1, characterized in that: The handle (5) is cylindrical and its lower end is connected to the charging base (6).

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