Dental pulp activity testing equipment

Abstract

The utility model discloses a dental pulp vitality testing device, which relates to the technical field of dental pulp vitality detection and comprises a semiconductor chilling plate, and one end of the semiconductor chilling plate is attached to the top of a conduction block. One end of the semiconductor chilling plate away from the conduction block is fixedly connected with the heat conduction pipe; the end, away from the semiconductor chilling plate, of the heat conduction pipe is provided with a storage bin. The middle of the storage bin is provided with a round hole for the heat conduction pipe to pass through. A space for placing a phase change heat storage material is arranged in the storage cabin; the two ends of the middle-section connecting shell are connected with the first end connecting shell and the second end connecting shell in a clamped mode respectively, mounting and dismounting are convenient, when parts in the first end connecting shell, the middle-section connecting shell and the second end connecting shell are damaged, maintenance or replacement can be achieved by dismounting the first end connecting shell, the middle-section connecting shell and the second end connecting shell, and convenience and rapidness are achieved; after the sealing cover is connected with the second end connecting shell, the two springs can abut against the storage bin, the stability of the storage bin is guaranteed, and the storage bin is prevented from shaking.

Description

Technical Field

[0001] The utility model relates to the technical field of pulp vitality detection, in particular to a pulp vitality testing device. Background Technique

[0002] Pulp vitality detection is a method for evaluating the health status of the pulp; the pulp is the soft tissue inside the tooth, including nerves, blood vessels, connective tissue, etc., and it plays an important role in the sensation and nutrient supply of the tooth; clinical pulp vitality detection methods include temperature detection method and electrical measurement method, among which the temperature detection method is the most widely used.

[0003] In the temperature detection method of pulp vitality detection, high temperature or low temperature is used to stimulate the pulp, and the pulp vitality of the patient is known through the tolerance state of the patient's pulp to high temperature or low temperature; Chinese Patent Publication No. CN 219741020 U discloses a heat dissipation system of a pulp vitality detector, including a heat conduction tube, a radiator and a fan. One end of the heat conduction tube is in contact with a semiconductor refrigeration sheet, and the other end is in contact with the radiator. The fan is facing away from the semiconductor refrigeration sheet at one end of the radiator;

[0004] For the above heat dissipation system of the pulp vitality detector, the heat generated by the semiconductor refrigeration sheet is transferred to the radiator through the heat conduction tube, and then the fan cooperates with the radiator to dissipate the heat; however, the shell of the above heat dissipation system of the pulp vitality detector is integrally arranged, and the semiconductor refrigeration sheet, the heat conduction tube and the radiator are all located in the shell. When the semiconductor refrigeration sheet, the heat conduction tube and the radiator fail, it is difficult to repair or replace. In addition, the integrally arranged shell has no outlet for heat discharge, and the airflow generated by the fan will blow the hot air, causing the hot air to flow rapidly in the shell. When the hot air flows to the refrigerating end of the semiconductor refrigeration sheet, it will affect the refrigeration effect of the semiconductor refrigeration sheet. Content of the Utility Model

[0005] The purpose of the utility model is to provide a pulp vitality testing device. The first end connection shell, the middle connection shell and the second end connection shell are clamped, and the installation and disassembly are very convenient. There are also heat dissipation holes at the second end connection shell, which can immediately discharge the high temperature accumulated at the storage compartment, so as to solve the technical problems proposed in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A pulp vitality testing device includes a semiconductor refrigeration sheet, one end of which is attached to the top of a conduction block; the end of the semiconductor refrigeration sheet away from the conduction block is fixedly connected to a heat conduction tube; a storage compartment is provided at the end of the heat conduction tube away from the semiconductor refrigeration sheet, and a round hole for the heat conduction tube to pass through is provided in the middle of the storage compartment; a space for placing a phase change heat storage material is provided in the storage compartment;

[0008] The described semiconductor refrigeration sheet is located inside the first end connection shell, the storage compartment is located inside the second end connection shell, and a middle section connection shell is provided between the first end connection shell and the second end connection shell; a plurality of heat dissipation holes are evenly provided on the second end connection shell; the heat conduction tube is cylindrical; a control button is embedded on the outer side of the middle section connection shell, and a plurality of anti-slip protrusions are evenly provided on the outer side of one end of the first end connection shell close to the middle section connection shell.

[0009] As a further technical solution of the present invention, one end of the second end connection shell is snap-connected to the middle section connection shell, and the end of the middle section connection shell far from the second end connection shell is thread-connected to the first end connection shell; a connection column is provided at one end of the first end connection shell close to the conduction block, and the conduction block is fixedly connected to the first end connection shell through the connection column, and a round hole for the conduction block to pass through is provided at the bottom of the first end connection shell.

[0010] As a further technical solution of the present invention, an outer cylinder is sleeved on the outer side of the middle section of the heat conduction tube, and the outer cylinder is located inside the middle section connection shell and fixedly connected to the inner wall of the middle section connection shell.

[0011] As a further technical solution of the present invention, one end of the second end connection shell far from the middle section connection shell is snap-connected to the cover, and a connecting plate is fixedly connected to one side of the cover close to the storage compartment; springs are fixedly connected to both ends of one side of the connecting plate close to the storage compartment, and the ends of the two springs far from the connecting plate are both in contact with the storage compartment.

[0012] As a further technical solution of the present invention, the first end connection shell, the middle section connection shell and the second end connection shell are coaxially arranged; the heat conduction tube and the storage compartment are coaxially arranged.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. In the present invention, under the action of the Peltier effect, after the semiconductor refrigeration sheet is connected to a DC power supply, a temperature difference will be generated at the joints, one end absorbs heat and the other end releases heat. The end that absorbs heat generates low temperature. The low-temperature end of the semiconductor refrigeration sheet is in contact with the conduction block, so the low temperature will be transferred to the conduction block, making the conduction block also in a low-temperature state. The conduction block can be made of plastic or rubber. The conduction block in the low-temperature state can detect the activity of the patient's dental pulp after contacting the dental pulp; the heat generated at the high-temperature end of the semiconductor refrigeration sheet is transferred to the storage compartment through the heat conduction tube. Reducing the temperature at the high-temperature end of the semiconductor refrigeration sheet can maintain the refrigeration effect of the high and low temperature ends of the semiconductor refrigeration sheet for a long time.

[0015] 2. In the utility model, phase change heat storage materials are stored in the storage compartment. After the high temperature is transferred to the storage compartment along the heat pipe, the phase change heat storage materials in the storage compartment can absorb the heat and produce phase change. The storage compartment is an integrated sealed arrangement, which can prevent the phase change heat storage materials from leaking to the outside of the storage compartment and prevent the phase change heat storage materials from corroding the end connecting shell 1, the middle connecting shell, the end connecting shell 2 and the heat pipe; the multiple heat dissipation holes on the end connecting shell 2 correspond to the position of the storage compartment, and the heat that the phase change heat storage material has not had time to absorb can be discharged through the heat dissipation holes, thereby preventing heat from accumulating in the end connecting shell 2.

[0016] 3. In the utility model, the two ends of the middle connecting shell are respectively connected with the end connecting shell 1 and the end connecting shell 2, which is convenient to install and disassemble. When the parts in the end connecting shell 1, the middle connecting shell and the end connecting shell 2 are damaged, they can be repaired or replaced by disassembling the end connecting shell 1, the middle connecting shell and the end connecting shell 2, which is convenient and quick. After the cover is connected to the end connecting shell 2, the two springs can resist the storage compartment to ensure the stability of the storage compartment and prevent the storage compartment from shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 This utility model Figure 1 Another perspective of the picture.

[0019] Figure 3 This utility model Figure 1 Top view of the .

[0020] Figure 4 This utility model Figure 3 AA section view.

[0021] Figure 5 This utility model Figure 1 Schematic diagram of the internal structure.

[0022] Figure 6 This utility model Figure 5 Another perspective of the picture.

[0023] Figure 7 This utility model Figure 5 main view.

[0024] Figure 8 This utility model Figure 5 Schematic diagram of part of the structure.

[0025] Figure 9 This utility model Figure 8 main view.

[0026] In the figure: 1 - First end connection shell, 2 - Middle section connection shell, 3 - Second end connection shell, 4 - Cover, 5 - Conductive block, 6 - Heat dissipation holes, 7 - Thermoelectric cooler, 8 - Heat pipe, 9 - Placing compartment, 10 - Outer cylinder, 11 - Connection plate, 12 - Spring. Specific implementation manner

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1-9 , in the embodiment of the present invention, a pulp vitality testing device includes a thermoelectric cooler 7, one end of the thermoelectric cooler 7 is attached to the top of the conductive block 5; the end of the thermoelectric cooler 7 away from the conductive block 5 is fixedly connected to the heat pipe 8; a placing compartment 9 is provided at the end of the heat pipe 8 away from the thermoelectric cooler 7, and a round hole for the heat pipe 8 to pass through is provided in the middle of the placing compartment 9; a space for placing a phase change heat storage material is provided in the placing compartment 9;

[0029] The thermoelectric cooler 7 is located inside the first end connection shell 1, the placing compartment 9 is located inside the second end connection shell 3, and a middle section connection shell 2 is provided between the first end connection shell 1 and the second end connection shell 3; a plurality of heat dissipation holes 6 are evenly provided on the second end connection shell 3.

[0030] By adopting the above technical solution, under the action of the Peltier effect, after the thermoelectric cooler 7 is connected to a DC power supply, a temperature difference will be generated at the joints, one end absorbs heat and the other end releases heat. The end that absorbs heat generates a low temperature. The low-temperature end of the thermoelectric cooler 7 is attached to the conductive block 5. Therefore, the low temperature will be transferred to the conductive block 5, so that the conductive block 5 is also in a low-temperature state. The conductive block 5 can be made of plastic or rubber. After the low-temperature conductive block 5 contacts the patient's dental pulp, it can detect the activity of the dental pulp; the heat generated at the high-temperature end of the thermoelectric cooler 7 is transferred to the placing compartment 9 through the heat pipe 8. Reducing the temperature at the high-temperature end of the thermoelectric cooler 7 can maintain the cooling effect of the high and low temperature ends of the thermoelectric cooler 7 for a long time.

[0031] In this embodiment, the end connecting shell 2 3 is clamped with one end of the middle connecting shell 2, and the end of the middle connecting shell 2 away from the end connecting shell 2 3 is threadedly connected with the end connecting shell 1; a connecting column is provided at one end of the end connecting shell 1 close to the conduction block 5, and the conduction block 5 is fixedly connected to the end connecting shell 1 through the connecting column, and a round hole for the conduction block 5 to pass through is provided at the bottom of the end connecting shell 1; the heat pipe 8 is cylindrical; a control button is embedded on the outer side of the middle connecting shell 2, and a plurality of anti-slip protrusions are evenly provided on the outer side of the end connecting shell 1 close to the middle connecting shell 2;

[0032] An outer tube 10 is sleeved on the outer side of the middle section of the heat conducting pipe 8 . The outer tube 10 is located inside the middle section connecting shell 2 and is fixedly connected to the inner wall of the middle section connecting shell 2 .

[0033] By adopting the above technical solution, phase change heat storage material is stored in the storage compartment 9. After the high temperature is transferred to the storage compartment 9 along the heat pipe 8, the phase change heat storage material in the storage compartment 9 can absorb the heat and produce phase change. The storage compartment 9 is an integrated sealed arrangement, which can prevent the phase change heat storage material from leaking to the outside of the storage compartment 9 and prevent the phase change heat storage material from corroding the end connecting shell 1, the middle connecting shell 2, the end connecting shell 3 and the heat pipe 8; the multiple heat dissipation holes 6 on the end connecting shell 2 3 correspond to the position of the storage compartment 9, and the heat that the phase change heat storage material has no time to absorb can be discharged through the heat dissipation holes 6, thereby preventing heat from accumulating in the end connecting shell 2 3.

[0034] In this embodiment, the end of the end connecting shell 2 3 away from the middle connecting shell 2 is clamped with the cover 4, and the cover 4 is fixedly connected to a connecting plate 11 on the side close to the storage compartment 9; both ends of the connecting plate 11 close to the storage compartment 9 are fixedly connected to springs 12, and the ends of the two springs 12 away from the connecting plate 11 are both in contact with the storage compartment 9;

[0035] The end connecting shell 1, the middle connecting shell 2 and the end connecting shell 3 are coaxially arranged; the heat conducting pipe 8 and the storage compartment 9 are coaxially arranged.

[0036] By adopting the above technical scheme, the two ends of the middle connecting shell 2 are respectively clamped with the end connecting shell 1 and the end connecting shell 2 3, which makes installation and disassembly more convenient. When the parts in the end connecting shell 1, the middle connecting shell 2 and the end connecting shell 2 3 are damaged, they can be repaired or replaced by disassembling the end connecting shell 1, the middle connecting shell 2 and the end connecting shell 2 3, which is convenient and quick. After the cover 4 is connected to the end connecting shell 2 3, the two springs 12 can resist the storage compartment 9 to ensure the stability of the storage compartment 9 and prevent the storage compartment 9 from shaking.

[0037] The working principle of the utility model is as follows: under the action of the Peltier effect, after the semiconductor refrigeration sheet 7 is connected to a DC power supply, a temperature difference will be generated at the joint, one end absorbs heat, and the other end releases heat, and the end that absorbs heat generates a low temperature. The low-temperature end of the semiconductor refrigeration sheet 7 is in contact with the conduction block 5, so the low temperature will be transferred to the conduction block 5, so that the conduction block 5 is also in a low-temperature state. After the conduction block 5 in a low-temperature state contacts the dental pulp of the patient, the activity of the dental pulp can be detected; the heat generated by the high-temperature end of the semiconductor refrigeration sheet 7 is transferred to the storage compartment 9 through the heat conduction pipe 8, and the temperature of the high-temperature end of the semiconductor refrigeration sheet 7 is reduced, so that the refrigeration effect of the high and low temperature ends of the semiconductor refrigeration sheet 7 can be maintained for a long time;

[0038] Phase change heat storage material is stored in the storage compartment 9. After the high temperature is transferred to the storage compartment 9 along the heat pipe 8, the phase change heat storage material in the storage compartment 9 can absorb the heat and produce phase change. The storage compartment 9 is an integrated sealed arrangement, which can prevent the phase change heat storage material from leaking to the outside of the storage compartment 9 and prevent the phase change heat storage material from corroding the end connection shell 1, the middle connection shell 2, the end connection shell 3 and the heat pipe 8; the multiple heat dissipation holes 6 on the end connection shell 2 3 correspond to the position of the storage compartment 9, and the heat that the phase change heat storage material has not had time to absorb can be discharged through the heat dissipation holes 6, thereby preventing heat from accumulating in the end connection shell 2 3;

[0039] The two ends of the middle connecting shell 2 are respectively clamped with the end connecting shell 1 and the end connecting shell 2 3, which is convenient for installation and disassembly. When the parts in the end connecting shell 1, the middle connecting shell 2 and the end connecting shell 2 3 are damaged, they can be repaired or replaced by disassembling the end connecting shell 1, the middle connecting shell 2 and the end connecting shell 2 3, which is convenient and quick; after the cover 4 is connected to the end connecting shell 2 3, the two springs 12 can resist the storage compartment 9 to ensure the stability of the storage compartment 9 and prevent the storage compartment 9 from shaking.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An endodontic vitality testing device, characterized in that: It includes a storage compartment (9) which is provided with a space for placing phase change heat storage materials inside; the storage compartment (9) is located inside the second end connection shell (3), one end of the second end connection shell (3) is clamped with the middle section connection shell (2), and the other end is clamped with the cover (4). A connecting plate (11) is fixedly connected to the side of the cover (4) close to the storage compartment (9); both ends of the side of the connecting plate (11) close to the storage compartment (9) are fixedly connected with springs (12), and the ends of the two springs (12) away from the connecting plate (11) are both in contact with the storage compartment (9).

2. The pulp vitality testing device according to claim 1, wherein: A round hole for the heat conduction tube (8) to pass through is provided in the middle of the storage compartment (9), and the storage compartment (9) is fixedly connected to the end of the heat conduction tube (8).

3. The pulp vitality testing device according to claim 2, characterized in that: The end of the heat conduction tube (8) away from the storage compartment (9) is fixedly connected to the semiconductor refrigeration sheet (7).

4. The pulp vitality testing device according to claim 3, characterized in that: The end of the semiconductor refrigeration sheet (7) away from the heat conduction tube (8) is in contact with the top of the conduction block (5); the semiconductor refrigeration sheet (7) is located inside the first end connection shell (1).

5. The pulp vitality testing device according to claim 4, characterized in that: A middle section connection shell (2) is provided between the first end connection shell (1) and the second end connection shell (3); a plurality of heat dissipation holes (6) are evenly provided on the second end connection shell (3).

6. The pulp vitality testing device according to claim 5, wherein: The heat conduction tube (8) is cylindrical; control buttons are embedded on the outer side of the middle section connection shell (2), and a plurality of anti-slip protrusions are evenly provided on the outer side of one end of the first end connection shell (1) close to the middle section connection shell (2).

7. The pulp vitality testing device according to claim 6, characterized in that: One end of the second end connection shell (3) is clamped with the middle section connection shell (2), and the end of the middle section connection shell (2) away from the second end connection shell (3) is threadedly connected to the first end connection shell (1).

8. The pulp vitality testing device according to claim 7, characterized in that: A connecting column is provided at one end of the first end connection shell (1) close to the conduction block (5), and the conduction block (5) is fixedly connected to the first end connection shell (1) through the connecting column. A round hole for the conduction block (5) to pass through is provided at the bottom of the first end connection shell (1).

9. The pulp vitality testing device according to claim 8, wherein: An outer cylinder (10) is sleeved on the outer side of the middle section of the heat conduction tube (8), and the outer cylinder (10) is located inside the middle section connection shell (2) and is fixedly connected to the inner wall of the middle section connection shell (2).

10. The pulp vitality testing device according to claim 9, characterized in that: The first end connection shell (1), the middle section connection shell (2) and the second end connection shell (3) are coaxially arranged; the heat conduction tube (8) and the storage compartment (9) are coaxially arranged.

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