Lip protector for hot gutta-percha filling

CN224776931UActive Publication Date: 2026-09-22梅藜文
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Patent Information

Application Number
CN202522279631.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-28
Publication Date
2026-09-22
Estimated Expiration
2035-10-28

AI Technical Summary

Technical Problem

[0003]针对现有技术的不足,本实用新型提供了一种热牙胶填充用口唇保护器,解决了现有热牙胶填充临床操作中,使用热牙胶注射充填系统时,因操作空间狭小、患者突然移动,导致从根管口回撤的注射针头黏附的高温牙胶意外滴落或接触患者口唇组织,进而造成口唇瞬时烫伤、引发疼痛、红肿、起泡甚至溃疡,给患者带来额外痛苦与创伤、严重影响治疗体验的问题

Benefits of technology

[0010]本实用新型提供了一种热牙胶填充用口唇保护器。与现有技术相比具备以下有益效果:该热牙胶填充用口唇保护器,通过内环套、外环套与隔离套的组合结构,在口唇组织与热牙胶操作区域之间建立物理屏障,当热牙胶注射针头回撤时,即使针尖黏附的高温牙胶滴落,也会被隔离套阻挡,无法直接接触口唇皮肤与黏膜;内环套贴合齿部内侧、外环套覆盖口唇外侧,形成内外双重防护,彻底隔绝高温牙胶与口唇组织的接触路径,从源头避免烫伤引发的剧烈疼痛、组织红肿、起泡及溃疡问题,不变形的隔离套能为热牙胶填充仪针头提供稳定的插入通道,避免因隔离套塌陷导致操作空间进一步缩小,确保医护人员在狭小口腔环境内仍能精准完成填充操作,降低因空间受限引发的操作失误风险,线性无影灯通过投射孔直射操作区域,消除阴影盲区,帮助医护人员清晰观察根管口与针头位置,精准的视野可减少因操作偏差导致的针头回撤不当、牙胶滴落等问题,间接降低高温牙胶接触口唇的风险,同时提升治疗效率与填充质量。

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Abstract

The utility model relates to hot dental adhesive filling auxiliary medical instrument technical field, the utility model discloses a kind of mouth and lip protectors for hot dental adhesive filling, including isolating sleeve;Inner ring cover, it is arranged in the isolating sleeve one end, and the other end of the isolating sleeve is equipped with outer ring cover;Annular spring, integrated in the isolating sleeve interior;Linear shadowless lamp, it is equipped in the isolating sleeve, this mouth and lip protector for hot dental adhesive filling, through the combination structure of inner ring cover, outer ring cover and isolating sleeve, physical barrier is established between mouth and lip tissue and hot dental adhesive operating area, when hot dental adhesive injection needle head is withdrawn, even if needle tip adheres high-temperature dental adhesive drop, it will be blocked by isolating sleeve, cannot directly contact mouth and lip skin and mucous membrane;Inner ring cover adheres inside tooth part, outer ring cover covers mouth and lip outside, form double protection, completely isolate the contact path of high-temperature dental adhesive and mouth and lip tissue, avoid scalding from source to cause severe pain, tissue red and swollen, blister and ulcer problem.
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Description

Technical Field

[0001] This utility model relates to the field of auxiliary medical devices for heated gutta-percha filling, specifically a lip protector for heated gutta-percha filling. Background Technology

[0002] In modern root canal treatment, the vertical compaction technique of heated gutta-percha has become the gold standard due to its excellent three-dimensional sealing effect on the root canal system. This technique softens the gutta-percha points by heating and uses a vertical compactor to tightly fill the root canal and all lateral accessory root canals with fluid heated gutta-percha, thereby achieving the purpose of completely sealing the root canal system. However, during clinical procedures, especially when using heated gutta-percha injection filling systems, there is a significant risk: when withdrawing the injection needle carrying heated gutta-percha from the root canal orifice, or due to limited operating space or sudden patient movement, the high-temperature gutta-percha adhering to the needle tip may accidentally drip or come into contact with the patient's lip tissue. This high-temperature gutta-percha material can cause instantaneous burns to the patient's lip tissue, resulting in severe pain, tissue redness and swelling, blistering, or even ulceration, causing additional pain and trauma to the patient and seriously affecting their treatment experience. Therefore, we have proposed a lip protector for heated gutta-percha fillings to solve the above-mentioned problems. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a lip protector for thermoplastic gutta-percha filling. This solves the problem that in clinical procedures using thermoplastic gutta-percha injection filling systems, the limited operating space and sudden patient movement can cause hot gutta-percha to accidentally drip or come into contact with the patient's lip tissue as the injection needle retracts from the root canal orifice. This can result in instantaneous burns to the lips, causing pain, swelling, blistering, or even ulcers, leading to additional pain and trauma for the patient and severely impacting the treatment experience.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a lip protector for thermoplastic gutta-percha filling, including an isolation sleeve; An inner ring sleeve is provided at one end of the isolation sleeve, and an outer ring sleeve is provided at the other end of the isolation sleeve; a ring spring is integrated inside the isolation sleeve; A linear shadowless lamp is installed on the isolation sleeve; It also includes a cooling delivery mechanism, which provides circulating coolant to protect the lips and remove heat from the oral cavity.

[0005] Preferably, the isolation sleeve has an embedded groove adapted to the linear shadowless lamp, and the isolation sleeve has multiple sets of projection holes at the embedded groove position. The linear shadowless lamp is embedded in the embedded groove, and the illumination part of the linear shadowless lamp corresponds to the projection hole.

[0006] Preferably, the inner wall of the isolation sleeve is fixed with multiple sets of airbags, and the airbags and the projection holes are misaligned.

[0007] Preferably, the refrigeration delivery mechanism is used to provide circulating coolant to the inner and outer ring sleeves. Both the inner and outer ring sleeves have hollow cavities. A liquid storage tank is provided below the isolation sleeve. A cooling plate is fixedly installed on one side of the liquid storage tank. A micro pump is fixedly installed on the top of the liquid storage tank. A delivery hose is fixed to the output end of the micro pump. One end of the delivery hose has a Y-joint structure and is connected to the pipe heads of the inner and outer ring sleeves respectively. A liquid extraction pipe is fixedly installed at the input end of the micro pump. The other end of the liquid extraction pipe is fixed and connected to one side of the bottom of the liquid storage tank. A return hose is installed on the top of the liquid storage tank through a connecting pipe. One end of the return hose has a Y-joint structure and is connected to the pipe heads of the inner and outer ring sleeves respectively. A temperature sensor is installed inside the liquid storage tank.

[0008] Preferably, a first control valve and a second control valve are installed on the output end and connecting pipe of the micro pump, respectively, and a cooling fan is fixedly installed on the side of the liquid storage tank near the cooling chip by a straight rod.

[0009] Preferably, the refrigeration delivery mechanism is used to provide circulating coolant to the inner ring sleeve, the inner ring sleeve has a hollow cavity, and the inner ring sidewall of the outer ring sleeve has a coaxial annular cavity, and the sidewall of the cavity is fixedly covered with a metal layer. Beneficial effects

[0010] This invention provides a lip protector for hot gutta-percha filling. Compared with the prior art, it has the following advantages: This lip protector, through the combination of an inner ring, an outer ring, and an isolation sleeve, establishes a physical barrier between the lip tissue and the hot gutta-percha operating area. When the hot gutta-percha injection needle is retracted, even if the hot gutta-percha adhering to the needle tip drips, it will be blocked by the isolation sleeve, preventing direct contact with the lip skin and mucous membrane. The inner ring fits against the inner side of the teeth, and the outer ring covers the outer side of the lips, forming double protection from both inside and outside, completely isolating the contact path between the hot gutta-percha and the lip tissue, thus avoiding severe pain, tissue redness, swelling, blistering, and ulceration caused by burns from the source. The non-deformable isolation sleeve provides a stable insertion channel for the thermoplastic gutta-percha filling instrument needle, preventing further reduction in operating space due to sleeve collapse. This ensures that medical staff can accurately complete the filling operation even in a confined oral environment, reducing the risk of operational errors caused by space constraints. The linear shadowless lamp shines directly into the operating area through the projection hole, eliminating shadow blind spots and helping medical staff clearly observe the root canal orifice and needle position. The precise field of vision reduces problems such as improper needle retraction and gutta-percha dripping caused by operational deviations, indirectly reducing the risk of hot gutta-percha contacting the lips, while improving treatment efficiency and filling quality. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial view of the overall structure of this utility model; Figure 3 This is a structural cross-sectional view of the connecting components such as the isolation sleeve and the outer ring sleeve of this utility model; Figure 4 This utility model Figure 3 A magnified structural diagram at point A.

[0012] In the diagram: 101, isolation sleeve; 102, inner ring sleeve; 103, outer ring sleeve; 104, airbag cushion; 105, ring spring; 106, embedded groove; 107, linear shadowless lamp; 2, refrigeration delivery mechanism; 201, liquid storage tank; 202, refrigeration chip; 203, cooling fan; 204, micro pump; 205, liquid extraction tube; 206, delivery hose; 207, return hose; 208, first control valve; 209, second control valve. Detailed Implementation

[0013] 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.

[0014] like Figure 1-4 As shown: Example

[0015] A lip protector for thermoplastic gutta-percha filling includes an isolation sleeve 101; An inner ring sleeve 102 is provided at one end of an isolation sleeve 101, and an outer ring sleeve 103 is provided at the other end of the isolation sleeve 101; The annular spring 105 is integrated inside the isolation sleeve 101; A linear shadowless lamp 107 is mounted on an isolation sleeve 101. The isolation sleeve 101 has an embedded groove 106 adapted to the linear shadowless lamp 107. The isolation sleeve 101 has multiple projection holes at the embedded groove 106. The linear shadowless lamp 107 is embedded in the embedded groove 106, and the illumination part of the linear shadowless lamp 107 corresponds to the projection hole. Multiple sets of airbag cushions 104 are fixed to the inner wall of the isolation sleeve 101, and the airbag cushions 104 and the projection hole are misaligned. It also includes a cooling delivery mechanism 2, used to provide circulating coolant to the lip protection to remove heat from the oral cavity. The cooling delivery mechanism 2 is used to provide circulating coolant to the inner ring 102 and the outer ring 103. Both the inner ring 102 and the outer ring 103 have hollow cavities. A liquid storage tank 201 is located below the isolation sleeve 101. A cooling plate 202 is fixedly installed on one side of the liquid storage tank 201. A micro pump 204 is fixedly installed on the top of the liquid storage tank 201. A delivery hose 206 is fixed to the output end of the micro pump 204. One end of the delivery hose 206 has a Y-joint structure and is connected to the tube heads of the inner ring sleeve 102 and the outer ring sleeve 103 respectively. The input end of the micro pump 204 is fixedly installed with a liquid extraction tube 205. The other end of the liquid extraction tube 205 is fixed and connected to one side of the bottom of the liquid storage tank 201. The top of the liquid storage tank 201 is connected with a return hose 207 through a connecting pipe. One end of the return hose 207 has a Y-joint structure and is connected to the tube heads of the inner ring sleeve 102 and the outer ring sleeve 103 respectively. A temperature sensor is installed inside the liquid storage tank 201. The output end of the micro pump 204 and the connecting pipe are respectively equipped with a first control valve 208 and a second control valve 209. The liquid storage tank 201 is fixedly installed with a cooling fan 203 on the side near the cooling chip 202 by a straight rod.

[0016] In this implementation plan: When using the heated gutta-percha lip protector, the medical staff slowly inserts the inner ring 102 of the lip protector into the patient's mouth with the inner ring 102 facing inward, so that the patient's teeth are placed exactly on the isolation sleeve 101 between the inner ring 102 and the outer ring 103, ensuring that the protector stably fits the oral cavity structure and the installation is completed. The ring spring 105 integrated inside the isolation sleeve 101 immediately takes effect, enhancing the overall strength of the isolation sleeve 101. Even if the patient has the isolation sleeve 101 in their mouth, it can significantly reduce its deformation, providing a stable channel for the needle of the thermoplastic gutta-percha instrument and avoiding the insertion operation being affected by the deformation of the isolation sleeve 101. Multiple air cushions 104 on the inner wall of the isolation sleeve 101 come into contact with the patient's oral tissue. During the insertion and adjustment of the hot gutta-percha filling instrument, they can buffer the pressure of the instrument on the oral cavity wall. The staggered design of the air cushions 104 and the projection holes on the isolation sleeve 101 will not block the subsequent lighting light, thus balancing protection and the operator's field of vision. When the cooling delivery mechanism 2 is activated, the temperature sensor in the storage tank 201 first detects the coolant temperature. If the temperature is not up to standard, the cooling chip 202 is activated to cool down the coolant. At the same time, the cooling fan 203 runs to dissipate heat from the cooling chip 202, ensuring cooling efficiency. Once the temperature reaches the standard, the micro pump 204 is activated, drawing coolant from the storage tank 201 through the extraction pipe 205. The coolant is then delivered to the hollow cavities of the inner ring 102 and the outer ring 103 through the Y-joint structure of the delivery hose 206. The coolant circulates within the cavities, absorbing the heat generated in the oral cavity by the hot gutta-percha operation. Subsequently, it flows back to the storage tank 201 through the return hose 207, forming a closed-loop circulation to continuously cool the lips and oral tissues. During the process, the delivery volume and return speed of the coolant can be adjusted through the first control valve 208 and the second control valve 209 to precisely control the cooling effect. During operation, the linear shadowless lamp 107 on the isolation sleeve 101 is turned on, and the light shines directly into the operation area through the multiple projection holes of the isolation sleeve 101.

[0017] The shadowless lamp eliminates shadows during operation, providing medical staff with a clear field of vision, ensuring accurate placement of heated gutta-percha, and reducing operational errors caused by poor visibility.

[0018] It should be noted that a thin-diameter waterproof wire is led out from the tail of the linear shadowless lamp 107. The waterproof wire is connected to the integrated power supply interface on the side of the liquid storage tank 201 of the refrigeration delivery mechanism 2. The power supply is uniformly supplied through the power module on the liquid storage tank 201. The power module has a built-in voltage regulator chip, which can avoid the influence of voltage fluctuations on the linear shadowless lamp 107, ensuring stable light brightness and no flickering. An integrated control panel is set on the liquid storage tank 201 of the refrigeration delivery mechanism 2. When the "master start button" on the panel is pressed, not only are the micro pump 204 and the cooling chip 202 started, but the linear shadowless lamp 107 is also triggered to turn on simultaneously. There is no need to operate the light switch separately, which improves the operating efficiency of medical staff. All electrical equipment involved in this product is powered by an external power source. The power connection method of each electrical device is an existing mature technology and is well known to those in the art. It will not be described in detail here. Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0019] It should be noted that: when the second control valve 209 is closed, the micro pump 204 of the refrigeration delivery mechanism 2 is started, and the coolant in the storage tank 201 is drawn through the liquid extraction pipe 205 and delivered to the hollow cavities of the inner ring 102 and the outer ring 103 through the delivery hose 206Y connector structure. The inside is filled with liquid-fillable water bladders. By closing the first control valve 208, the user can freely store or drain the internal liquid according to actual needs to change the volume of the protector. Example

[0020] In an optional embodiment, the cooling delivery mechanism 2 is used to provide circulating coolant to the inner ring sleeve 102. One end of the delivery hose 206 and the return hose 207 are straight pipe joints and are respectively connected to the pipe head of the inner ring sleeve 102. The inner ring sleeve 102 has a hollow cavity. The inner ring sidewall of the outer ring sleeve 103 has a coaxial annular cavity, and the sidewall of the cavity is fixedly covered with a metal layer.

[0021] In this embodiment: when the cooling delivery mechanism 2 is activated, the coolant is delivered to the hollow cavity of the inner ring sleeve 102 only through the delivery hose 206, circulating and absorbing the heat in the oral cavity to achieve local cooling. The annular cavity of the inner ring sidewall of the outer ring sleeve 103 is combined with the silver metal layer. When the heat radiation generated during the operation comes into contact with the metal layer, it will be reflected by the silver material and cannot penetrate the outer ring sleeve 103 to be transmitted to the lip tissue, further blocking the risk of heat damage.

[0022] This design, through the combination of an inner ring 102, an outer ring 103, and an isolation sleeve 101, establishes a physical barrier between the lip tissue and the area where heated gutta-percha is being handled. When the heated gutta-percha needle is retracted, even if hot gutta-percha adhering to the needle tip drips, it will be blocked by the isolation sleeve 101, preventing direct contact with the lip skin and mucous membrane. The inner ring 102 conforms to the inner side of the teeth, and the outer ring 103 covers the outer side of the lips, forming a double layer of protection that completely isolates the contact path between the hot gutta-percha and the lip tissue, preventing severe pain, tissue redness, swelling, blistering, and ulceration caused by burns from the source. The isolation sleeve does not deform. The 101 provides a stable insertion channel for the thermoplastic gutta-percha filling instrument needle, preventing further reduction in operating space due to the collapse of the isolation sleeve 101. This ensures that medical staff can accurately complete the filling operation even in a confined oral environment, reducing the risk of operational errors caused by space constraints. The linear shadowless lamp 107 shines directly into the operating area through the projection hole, eliminating shadow blind spots and helping medical staff clearly observe the root canal orifice and needle position. The precise field of vision can reduce problems such as improper needle retraction and gutta-percha dripping caused by operational deviations, indirectly reducing the risk of hot gutta-percha contacting the lips, while improving treatment efficiency and filling quality.

[0023] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A lip protector for thermoplastic gutta-percha filling, characterized in that: Including the isolation sleeve (101); An inner ring sleeve (102) is provided at one end of the isolation sleeve (101), and an outer ring sleeve (103) is provided at the other end of the isolation sleeve (101). A ring spring (105) is integrated inside the isolation sleeve (101); A linear shadowless lamp (107) is mounted on the isolation sleeve (101); It also includes a cooling delivery mechanism (2) for providing circulating coolant to remove heat from the mouth for lip protection.

2. The lip protector for thermoplastic gutta-percha filling according to claim 1, characterized in that: The isolation sleeve (101) has an embedded groove (106) adapted to the linear shadowless lamp (107), and the isolation sleeve (101) has multiple sets of projection holes at the embedded groove (106). The linear shadowless lamp (107) is embedded in the embedded groove (106), and the lighting part of the linear shadowless lamp (107) corresponds to the projection hole.

3. The lip protector for thermoplastic gutta-percha filling according to claim 2, characterized in that: The inner wall of the isolation sleeve (101) is fixed with multiple sets of airbag cushions (104), and the airbag cushions (104) and the projection hole are misaligned.

4. The lip protector for thermoplastic gutta-percha filling according to claim 1, characterized in that: The cooling delivery mechanism (2) is used to provide circulating coolant to the inner ring sleeve (102) and the outer ring sleeve (103). Both the inner ring sleeve (102) and the outer ring sleeve (103) have hollow cavities. A liquid storage tank (201) is provided below the isolation sleeve (101). A cooling chip (202) is fixedly installed on one side of the liquid storage tank (201). A micro pump (204) is fixedly installed on the top of the liquid storage tank (201). A delivery hose (206) is fixed to the output end of the micro pump (204). One end of the delivery hose (206) is a Y-joint. The structure is connected to the tube heads of the inner ring sleeve (102) and the outer ring sleeve (103) respectively. The input end of the micro pump (204) is fixedly installed with a liquid extraction tube (205). The other end of the liquid extraction tube (205) is fixed and connected to one side of the bottom of the liquid storage tank (201). The top of the liquid storage tank (201) is equipped with a return hose (207) through a connecting pipe. One end of the return hose (207) is a Y-joint structure and is connected to the tube heads of the inner ring sleeve (102) and the outer ring sleeve (103) respectively. A temperature sensor is installed inside the liquid storage tank (201).

5. The lip protector for thermoplastic gutta-percha filling according to claim 4, characterized in that: The output end of the micro pump (204) and the connecting pipe are respectively equipped with a first control valve (208) and a second control valve (209). The liquid storage tank (201) is fixedly equipped with a cooling fan (203) on the side near the cooling chip (202) by a straight rod.

6. The lip protector for thermoplastic gutta-percha filling according to claim 1, characterized in that: The cooling delivery mechanism (2) is used to provide circulating coolant to the inner ring sleeve (102). The inner ring sleeve (102) has a hollow cavity. The outer ring sleeve (103) has an annular cavity coaxially formed on the inner ring sidewall, and the cavity sidewall is fixedly covered with a metal layer.