Dental diagnosis and treatment chair
By installing a lumbar support device and pressure detection component on the dental chair, flexible support and intelligent adjustment of the lumbar region are achieved, solving the problem of the lack of lumbar support in existing dental chairs and improving patient comfort and treatment outcomes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN CINGOL MEDICAL INSTR
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-24
AI Technical Summary
Existing dental chairs lack effective lumbar support and adjustment, causing patients to experience lumbar fatigue and discomfort during treatment.
It adopts a lumbar support device, including a support frame, support rollers, lifting drive assembly and pressure detection assembly. The height of the support rollers can be adjusted by the lifting drive assembly, and combined with elastic rollers and massage protrusions, it provides comfortable support and massage. The pressure detection assembly realizes intelligent pressure adjustment.
It improves patients' lumbar comfort, reduces lumbar fatigue and discomfort, enhances the treatment experience, ensures appropriate lumbar support pressure and promotes blood circulation, and reduces the risk of cross-infection.
Smart Images

Figure CN224155970U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dental chair technology, and in particular to a dental chair. Background Technology
[0002] A dental chair is used for oral surgery and the examination and treatment of oral diseases. Electric dental chairs are typically used, where a control switch starts the motor, which drives the transmission mechanism, causing the corresponding parts of the chair to move. Depending on the treatment needs, by operating the control switch buttons, the dental chair can perform movements such as raising, lowering, tilting, and repositioning.
[0003] During dental treatment, patients need to sit in the dental chair for extended periods. Due to the required posture, the patient's lower back is often unsupported or poorly supported, easily leading to lower back fatigue and discomfort, affecting the patient's treatment experience and outcome. Most existing dental chairs lack effective lumbar support and adjustment functions, failing to meet the different lumbar support needs of patients. Utility Model Content
[0004] The purpose of this invention is to provide a dental chair to solve the technical problem of the lack of effective lumbar support and adjustment functions in the prior art.
[0005] To solve the above problems, the present invention provides a dental chair with the following technical solution: it includes a chair body, the chair body includes a backrest, a lumbar support device is provided in the lumbar spine area of the backrest, the lumbar support device includes a support frame, a support roller, and a lifting drive assembly, the support frame is provided with a guide groove, and the lifting drive assembly is connected to the support roller to drive the support roller to move up and down along the guide groove.
[0006] Furthermore, the lifting drive assembly includes a lead screw, a slider, and a drive motor. The drive motor is linked to the lead screw, the slider is linked to the support roller, the slider is sleeved on the outer wall of the lead screw and drives the lead screw, and the slider is embedded in the guide groove and slides up and down along the guide groove.
[0007] Furthermore, the support roller includes an installation roller and an elastic roller, with the elastic roller sleeved on the outer wall of the installation roller.
[0008] Furthermore, the elastic roller is made of medical-grade silicone, and the inner wall of the elastic roller is interference-fitted with the mounting roller.
[0009] Furthermore, it also includes a pressure detection component, which includes a thin-film pressure sensor and a signal processing module. The thin-film pressure sensor is attached to the inner wall of the elastic roller, and the thin-film pressure sensor is electrically connected to the lifting drive component through the signal processing module.
[0010] Furthermore, the surface of the elastic roller is uniformly arrayed with massage protrusions, which are hemispherical in shape.
[0011] Furthermore, a limiting boss is provided at the end of the slider facing the mounting roller, and a limiting groove corresponding to the limiting boss is provided on the mounting roller, with the limiting boss inserted into the limiting groove.
[0012] Furthermore, there are three sets of support rollers, which are arranged side by side and their horizontal center axes are parallel to each other.
[0013] Furthermore, the backrest includes an outer lining and an inner support frame. The outer lining is wrapped around the inner support frame, and the lumbar support device is located inside the outer lining. The support frame is fixedly connected to the inner support frame.
[0014] Furthermore, the outer lining fabric has several ventilation holes and is made of a breathable material.
[0015] The beneficial effects of the dental chair provided by this utility model are:
[0016] 1. The lumbar support device of this dental chair achieves flexible adjustment of the support roller height through a lifting drive component, allowing it to better conform to the patient's lumbar curve and provide just the right support for the lower back. At the same time, the elastic rollers of the support rollers are made of medical-grade silicone, which can effectively buffer the pressure on the lower back, avoid excessive pressure on certain areas, and closely conform to the skin of the lower back, bringing a comfortable touch. In addition, the evenly arrayed hemispherical massage protrusions on the surface of the elastic rollers can provide a gentle massage to the lower back while the patient leans against them, promoting blood circulation in the lower back, relieving muscle tension, greatly improving the patient's lower back comfort during dental treatment, and reducing lower back fatigue and discomfort caused by maintaining a fixed posture for a long time.
[0017] 2. The pressure detection component provides intelligent pressure adjustment for this dental chair, ensuring that the support rollers always maintain appropriate support pressure on the lumbar region;
[0018] 3. The outer lining of the backrest is made of breathable material and has several ventilation holes on the surface, which can effectively improve the air circulation between the patient's waist and the backrest, and effectively reduce stuffiness and moisture accumulation. Attached Figure Description
[0019] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:
[0020] Figure 1This is a three-dimensional structural diagram of a dental chair according to the present invention;
[0021] Figure 2 This is a schematic diagram of the backrest structure of a dental chair according to the present invention;
[0022] Figure 3 This is a schematic diagram of the lifting drive assembly of a dental chair according to the present invention;
[0023] Figure 4 This is a schematic diagram of the pressure detection component of a dental chair according to the present invention.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. The main body of the treatment chair;
[0026] 11. Backrest; 111. Outer lining; 1111. Ventilation holes; 112. Internal support frame;
[0027] 12. Lumbar support device;
[0028] 121. Support frame; 1211. Guide groove;
[0029] 122. Support roller; 1221. Mounting roller; 103. Limiting groove; 1222. Elastic roller; 101. Massage protrusion;
[0030] 123. Lifting drive assembly; 1231. Lead screw; 1232. Slider; 102. Limiting boss; 1233. Drive motor;
[0031] 13. Pressure detection component; 131. Thin-film pressure sensor; 132. Signal processing module. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0033] The number of any elements in the accompanying drawings is for illustrative purposes only and not as a limitation, and any naming is for distinction only and has no limiting meaning.
[0034] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.
[0035] The dental chair provided by this utility model, such as Figures 1 to 4 As shown, the treatment chair includes a backrest 11. The backrest 11 has a lumbar support device 12 in the lumbar region. The lumbar support device 12 includes a support frame 121, a support roller 122, and a lifting drive assembly 123. The support frame 121 has a guide groove 1211. The lifting drive assembly 123 is connected to the support roller 122 to drive the support roller 122 to move up and down along the guide groove 1211.
[0036] Through the above technical solution, the support frame 121 serves as the mounting base for the entire lumbar support device 12, and the guide groove 1211 provided on it provides a precise track for the vertical movement of the slider 1232. Through the transmission connection between the lifting drive assembly 123 and the support roller 122, the support roller 122 assembly can be driven to move vertically along the guide groove 1211, thereby achieving height adjustment of the support roller 122 to adapt to the lumbar position requirements of different patients.
[0037] In this embodiment, the lifting drive assembly 123 includes a lead screw 1231, a slider 1232, and a drive motor 1233. The drive motor 1233 is linked to the lead screw 1231. When the drive motor 1233 starts, it drives the lead screw 1231 to rotate. The slider 1232 is linked to the support roller 122. The slider 1232 is sleeved on the outer wall of the lead screw 1231 and is in transmission cooperation with the lead screw 1231. The slider 1232 is embedded in the guide groove 1211 and slides up and down along the guide groove 1211. Under the drive of the drive motor 1233 and the lead screw 1231, the slider 1232 can slide up and down along the guide groove 1211, thereby driving the support roller 122 to move up and down.
[0038] In this embodiment, the support roller 122 includes an mounting roller 1221 and an elastic roller 1222, with the elastic roller 1222 sleeved on the outer wall of the mounting roller 1221. In this embodiment, the mounting roller 1221 serves to support and fix the elastic roller 1222. The elastic roller 1222 is made of medical-grade silicone, which has advantages such as being non-toxic, odorless, biocompatible, soft, and elastic, providing comfortable support for the patient's lower back and reducing pressure on the lower back.
[0039] In this embodiment, the inner wall of the elastic roller 1222 is interference-fitted with the mounting roller 1221 to ensure that the elastic roller 1222 is firmly installed on the mounting roller 1221, and to prevent loosening or falling off during use.
[0040] To achieve real-time monitoring and automatic adjustment of the pressure exerted by the support roller 122 on the patient's lumbar region, this embodiment also includes a pressure detection component 13. The pressure detection component 13 includes a thin-film pressure sensor 131 and a signal processing module 132. The thin-film pressure sensor 131 is attached to the inner wall of the elastic roller 1222. When the patient's lumbar region applies pressure to the elastic roller 1222, the thin-film pressure sensor 131 can accurately detect the pressure signal. The thin-film pressure sensor 131 is electrically connected to the lifting drive component 123 via the signal processing module 132. The signal processing module 132 processes the signal output by the thin-film pressure sensor 131 and then transmits the processed signal to the control circuit of the drive motor 1233 of the lifting drive component 123. The control circuit of the drive motor 1233 automatically adjusts its working state according to the received signal, such as starting, stopping, or changing the direction of the drive motor 1233, thereby achieving automatic adjustment of the height of the support roller 122 and ensuring that the support roller 122 always maintains appropriate support pressure on the lumbar region.
[0041] In this embodiment, the pressure detection component 13 provides the dental chair with an intelligent pressure adjustment function. This intelligent adjustment mechanism ensures that the support roller 122 always maintains appropriate support pressure on the lumbar region, preventing both insufficient pressure that would lead to lumbar fatigue and excessive pressure that could cause discomfort or even injury. Simultaneously, the pressure detection component 13 can monitor changes in lumbar pressure in real time, issuing alarms or taking appropriate measures in case of abnormal pressure, thus providing strong protection for patient safety.
[0042] In this embodiment, the surface of the elastic roller 1222 is uniformly arrayed with massage protrusions 101, each protrusion being hemispherical. When the patient's lower back comes into contact with the elastic roller 1222, these massage protrusions 101 provide a gentle massage, promoting blood circulation in the lower back, relieving muscle tension, and further improving the patient's comfort while using the dental chair.
[0043] In this embodiment, a limiting boss 102 is provided at one end of the slider 1232 facing the mounting roller 1221, and a limiting groove 103 corresponding to the limiting boss 102 is provided on the mounting roller 1221. The limiting boss 102 is inserted into the limiting groove 103 to ensure the connection stability between the mounting roller 1221 and the slider 1232, prevent the mounting roller 1221 from shaking or deviating during movement, and ensure that the support roller 122 can move accurately according to the set trajectory.
[0044] In this embodiment, three sets of support rollers 122 are provided, arranged side by side with their horizontal central axes parallel to each other. The design of multiple sets of support rollers 122 increases the support area for the patient's lower back, making the force on the lower back more even and improving the support effect. Simultaneously, the three sets of support rollers 122 can be adjusted in height independently or collaboratively to better adapt to the lumbar curves of different patients.
[0045] In this embodiment, the backrest 11 includes an outer lining 111 and an inner support frame 112. The outer lining 111 is wrapped around the inner support frame 112 to shape the backrest 11. The lumbar support device 12 is located inside the outer lining 111. The support frame 121 is fixedly connected to the inner support frame 112 to ensure the stability of the lumbar support device 12.
[0046] In this embodiment, the outer lining 111 is provided with a plurality of ventilation holes 1111. The outer lining 111 is made of a breathable material, which can ensure air circulation between the patient's waist and the contact area of the backrest 11, reduce stuffiness, and improve the patient's comfort during use. In addition, the breathable material of the outer lining 111 is easy to clean and disinfect, which helps to maintain the hygiene of the treatment chair, reduce the risk of cross-infection, and provide patients with a safer and healthier treatment environment.
[0047] The dental chair provided by this utility model, in actual use, involves the patient sitting in the dental chair and activating the lumbar support device 12. The drive motor 1233 drives the lead screw 1231 to rotate, and the lead screw 1231 drives the slider 1232 to move up and down along the guide groove 1211, thereby causing the three sets of support rollers 122 to move up and down simultaneously or separately, adjusting the support rollers 122 to a suitable position for the patient's waist. When the patient's waist applies pressure to the support rollers 122, the pressure detection component 13 detects the pressure signal and automatically adjusts the height of the support rollers 122 according to the signal, ensuring that the support rollers 122 always provide suitable support for the waist. Simultaneously, the massage protrusions 101 massage the waist, promoting blood circulation. Throughout the entire treatment process, the patient can maintain a comfortable lumbar posture, effectively improving the treatment experience and outcome.
[0048] Based on the above description in this specification, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.
[0049] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.
Claims
1. A dental chair, comprising a chair body, characterized in that, The main body of the treatment chair includes a backrest, and a lumbar support device is provided in the lumbar spine area of the backrest. The lumbar support device includes a support frame, a support roller, and a lifting drive assembly. The support frame is provided with a guide groove, and the lifting drive assembly is connected to the support roller to drive the support roller to move up and down along the guide groove.
2. A dental chair according to claim 1, characterized in that, The lifting drive assembly includes a lead screw, a slider, and a drive motor. The drive motor is linked to the lead screw, the slider is linked to the support roller, the slider is sleeved on the outer wall of the lead screw and drives the lead screw, and the slider is embedded in the guide groove and slides up and down along the guide groove.
3. A dental chair according to claim 2, characterized in that, The support roller includes an installation roller and an elastic roller, with the elastic roller sleeved on the outer wall of the installation roller.
4. A dental chair according to claim 3, characterized in that, The elastic roller is made of medical-grade silicone, and its inner wall is interference-fitted with the mounting roller.
5. A dental chair according to claim 3, characterized in that, It also includes a pressure detection component, which includes a thin-film pressure sensor and a signal processing module. The thin-film pressure sensor is attached to the inner wall of the elastic roller, and the thin-film pressure sensor is electrically connected to the lifting drive component through the signal processing module.
6. A dental chair according to claim 3, characterized in that, The surface of the elastic roller has a uniform array of massage protrusions, which are hemispherical in shape.
7. A dental chair according to claim 3, characterized in that, A limiting boss is provided at the end of the slider facing the mounting roller, and a limiting groove corresponding to the limiting boss is provided on the mounting roller, with the limiting boss inserted into the limiting groove.
8. A dental chair according to claim 3, characterized in that, There are three sets of support rollers, which are arranged side by side and the horizontal center axes of the three sets of support rollers are parallel to each other.
9. A dental chair according to any one of claims 1 to 8, characterized in that, The backrest includes an outer lining and an inner support frame. The outer lining is wrapped around the inner support frame, and the lumbar support device is located inside the outer lining. The support frame is fixedly connected to the inner support frame.
10. A dental chair according to claim 9, characterized in that, The outer lining fabric has several ventilation holes and is made of breathable material.