Dental chair movable backrest and dental chair

Abstract

The utility model relates to medical instrument technical field especially is involved in a kind of dental chair mobile backrest and dental chair, dental chair mobile backrest includes: adjusting lacing is set on dental chair main body, adjusting lacing is formed into the strip structure extending along the length direction of dental chair main body;Backrest piece has support part and the strap part of setting in the support part side facing dental chair main body, adjusting lacing passes through the through-hole surrounded by strap part and support part, so that backrest piece can slide along the extension direction of adjusting lacing.The utility model's dental chair mobile backrest thus can adjust the position of backrest piece on adjusting lacing according to the body size of patient, so that backrest piece gives patient effective support, improve the problem that patient is prone to physical fatigue in long-time treatment process, improve the diagnosis and treatment experience of patient.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a dental chair movable backrest and dental chair. Background Technology

[0002] Dental chairs are used for oral surgery and the examination and treatment of oral diseases. Current dental chair designs suffer from insufficient ergonomic fit. Due to significant differences in patient body shape, standard chair designs cannot provide comprehensive support, leading to accumulated fatigue in multiple areas during treatment. For example, the legs, lower back, and head and neck may feel unsupported or unbalanced due to lack of support or improper support positioning. This can cause discomfort such as numbness in the lower limbs and neck and shoulder pain during prolonged treatment, negatively impacting the patient's experience. Utility Model Content

[0003] In view of this, the purpose of this application is to provide a dental chair movable backrest and dental chair to solve the problem that due to the large differences in patients' body shapes, the existing dental chairs are not well adapted to the differences in patients' body shapes, which makes patients prone to numbness or soreness and other discomforts during lying down treatment due to lack of support or improper support position, thus affecting the patient's experience.

[0004] The first aspect of this utility model provides a movable backrest for dental chairs, comprising:

[0005] An adjustment strap is provided on the main body of the dental chair, and the adjustment strap is formed as a strip structure extending along the length direction of the main body of the dental chair;

[0006] The backrest has a support portion and a strap portion disposed on the side of the support portion facing the main body of the dental chair. The adjustment strap passes through a through hole formed by the strap portion and the support portion, so that the backrest can slide along the extension direction of the adjustment strap.

[0007] Preferably, the main body of the dental chair includes a headrest, a backrest, and a seat cushion, wherein the headrest and the seat cushion are respectively disposed on opposite sides of the backrest;

[0008] The adjustment straps include a first strap disposed on the headrest, a second strap disposed on the backrest, and a third strap disposed on the seat cushion;

[0009] The pillow assembly includes a first pillow mounted on the first strap, a second pillow mounted on the second strap, and a third pillow mounted on the third strap.

[0010] Preferably, the adjustment strap is located at the middle position of the dental chair body in the width direction.

[0011] Preferably, the strap portion is elastic, so that the strap portion can fit against the support portion before the adjusting strap passes through the through hole.

[0012] Preferably, the adjustment strap is non-detachably connected to the dental chair body.

[0013] Preferably, the adjustment strap is detachably connected to the dental chair body.

[0014] Preferably, the adjusting strap has fixed sections at both ends along its length and an intermediate section between the two fixed sections, and the headrest is mounted on the intermediate section;

[0015] Also includes:

[0016] The mounting component is installed on the side of the dental chair body facing away from the patient. The mounting component has a perforation. The end of the fixing section away from the middle section is formed as a free end. The part of the fixing section that does not pass through the perforation forms a fixing part. The free end passes through the perforation and connects to the fixing part.

[0017] Preferably, it further includes:

[0018] A connector is disposed on the side of the free end that passes through the perforation and faces the fixing part.

[0019] Preferably, the mounting component includes two grippers disposed opposite to each other, and the through hole is provided on one of the grippers;

[0020] One end of the two jaws is connected, and the other end of the two jaws forms a clamping opening that clamps onto the main body of the dental chair. The mounting member has a clamping part that can contact the main body of the dental chair.

[0021] In the direction in which the dental chair body extends into the clamping opening, the distance between the two jaws first gradually decreases and then gradually increases, and the clamping part is formed at the position where the distance between the two jaws is the smallest.

[0022] The second aspect of this utility model provides a dental chair, including the dental chair movable backrest described in any of the above technical solutions.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] This utility model relates to a movable backrest for a dental chair. An adjustable strap is mounted on the main body of the dental chair and is formed as a strip extending along the length of the main body. The backrest has a support portion and a strap portion located on the side of the support portion facing the main body of the dental chair. The adjustable strap passes through a through hole formed by the strap portion and the support portion, allowing the backrest to slide along the extension direction of the adjustable strap. This allows the position of the backrest on the adjustable strap to be adjusted according to the patient's body shape, providing effective support and alleviating fatigue that patients often experience during prolonged treatment, thus improving the patient's treatment experience.

[0025] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the structure of the dental chair movable backrest provided in the embodiment of this utility model, which is installed on the dental chair body and the adjustment strap is non-removable;

[0028] Figure 2 The dental chair movable backrest provided in the embodiment of this utility model moves the backrest piece along the adjusting strap to a position different from the one described above. Figure 1 A structural diagram showing the placement of the center backrest pillow component;

[0029] Figure 3 A schematic diagram of the structure of the movable backrest of the dental chair provided in an embodiment of this utility model;

[0030] Figure 4 A cross-sectional view of the structure of the dental chair movable backrest provided in an embodiment of the present invention, which is mounted on the dental chair body and has a detachable adjustment strap;

[0031] Figure 5 for Figure 4 A magnified structural diagram of point A in the middle.

[0032] Icons: 10-Main body of the dental chair; 11-Headrest component; 12-Backrest component; 13-Seat cushion component; 20-Adjustable strap; 201-Fixed section; 2011-Free end; 2012-Fixed part; 202-Middle section; 21-First strap; 22-Second strap; 23-Third strap; 30-Backrest component; 301-Strap part; 302-Support part; 303-Through hole; 31-First backrest; 32-Second backrest; 33-Third backrest; 40-Mounting component; 41-Through hole; 401-Clamping part; 402-Claw; 403-Clamping port. Detailed Implementation

[0033] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0034] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0035] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.

[0036] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0037] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0038] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.

[0039] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0040] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0041] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0042] According to the first aspect of this utility model, a movable backrest for a dental chair includes an adjusting strap 20 and a backrest component 30.

[0043] The specific structure of the above-mentioned components of the movable backrest of the dental chair according to this embodiment will be described below.

[0044] A dental chair consists of a treatment section and a seating section, such as Figure 1 , Figure 2 and Figure 4 As shown, the seat portion is the main body 10 of the dental chair for the patient to lie on during treatment. In this embodiment, the adjustment strap 20 is provided on the main body 10 of the dental chair, specifically on the side of the main body 10 used to support the patient. The adjustment strap 20 is formed as a strip structure extending along the length direction of the main body 10 of the dental chair. Preferably, the adjustment strap 20 is formed as a flat strip structure with a certain width, so that the adjustment strap 20 can fit against the surface of the main body 10 of the dental chair and will not protrude excessively on the surface of the main body 10 of the dental chair, thereby reducing the discomfort caused by the adjustment strap 20 to the patient when lying down.

[0045] like Figures 1 to 4 As shown, the pillow component 30 has a support portion 302 and a strap portion 301 disposed on the side of the support portion 302 facing the main body 10 of the dental chair. The support portion 302 is formed into a block structure, and the strap portion 301 can be a strip or a strip-shaped structure. The two ends of the strap portion 301 perpendicular to the length direction of the adjustment strap 20 are connected to the support portion 302, so that the through hole 303 formed by the strap portion 301 and the support portion 302 can be connected by sewing. However, the connection method of the strap portion 301 and the support portion 302 is not limited to this, as long as the two are fixed.

[0046] The adjusting strap 20 passes through the binding part 301 and the support part 302 to form a through hole 303, allowing the backrest 30 to slide along the extension direction of the adjusting strap 20. This allows the position of the backrest 30 on the adjusting strap 20 to be adjusted according to the patient's body shape, so that the backrest 30 provides effective support to the patient, avoids the feeling of being suspended due to lack of support, improves the problem of fatigue accumulation during long-term treatment, and enhances the patient's treatment experience.

[0047] In a preferred embodiment, such as Figures 1 to 4 As shown, the main body 10 of the dental chair includes a headrest 11, a backrest 12 and a seat cushion 13. The headrest 11 and the seat cushion 13 are respectively disposed on opposite sides of the backrest 12. The headrest 11 is used to support the patient's head, the backrest 12 is used to support the patient's back, and the seat cushion 13 is used to support the patient's buttocks and legs.

[0048] To provide effective support for the patient's legs, lower back, and head and neck, in this embodiment, as follows: Figure 1 , Figure 2 and Figure 4As shown, the adjustment strap 20 includes a first strap 21 on the headrest 11, a second strap 22 on the backrest 12, and a third strap 23 on the seat cushion 13. The backrest 30 includes a first backrest 31 mounted on the first strap 21, a second backrest 32 mounted on the second strap 22, and a third backrest 33 mounted on the third strap 23. In this way, the position of the first backrest 31 on the first strap 21 can meet the support needs of the patient's head and neck, the position of the second backrest 32 on the second strap 22 can meet the support needs of the patient's waist, and the position of the third backrest 33 on the third strap 23 can meet the support needs of the patient's legs. This can more effectively address the discomfort such as numbness in the lower limbs and soreness in the shoulders and neck that patients are prone to during long-term treatment.

[0049] Preferably, such as Figure 1 , Figure 2 and Figure 4 As shown, the adjustment strap 20 is located at the middle position of the dental chair body 10 in the width direction, and the strap part 301 is located at the middle position of the support part 302 in the width direction of the dental chair body 10. Specifically, the first strap 21 is located at the middle position of the headrest 11 in the width direction, the second strap 22 is located at the middle position of the backrest 12 in the width direction, and the third strap 23 is located at the middle position of the seat cushion 13 in the width direction, so that the first backrest 31, the second backrest 32 and the third backrest 33 are all installed at the middle position of the dental chair body 10 in the width direction, so as to achieve full support for the shoulders, neck, waist and legs when the patient is lying in the center on the dental chair body 10.

[0050] In this embodiment, the support portion 302 can be memory foam or an air bladder, etc., giving it a certain degree of flexibility to improve patient comfort while meeting support requirements. Preferably, such as Figure 3 As shown, the strap portion 301 is elastic, for example, the strap portion 301 can be an elastic band, so that before the adjusting strap 20 passes through the through hole 303, the strap portion 301 can fit against the support portion 302. In this way, when the pillow piece 30 slides along the adjusting strap 20, the support portion 302 is kept close to the adjusting strap 20, thereby avoiding the situation where the pillow piece 30 shifts after the adjustment position is determined, causing the support to shift.

[0051] In the first implementation, such as Figure 1 and Figure 2 As shown, the adjustment strap 20 is not detachably connected to the dental chair body 10. For example, the adjustment strap 20 can be fixed to the dental chair body 10 by sewing, thereby ensuring that the adjustment strap 20 and the dental chair body 10 are reliably positioned and fit well. This avoids the situation where the adjustment strap 20 is loose, which would cause the backrest 30 to be unreliably positioned in the width direction of the dental chair body 10, resulting in inconvenient adjustment or even failure of support.

[0052] In the second implementation, such as Figure 4 As shown, the adjustment strap 20 is detachably connected to the main body 10 of the dental chair, allowing for free installation of the adjustment strap 20 and the backrest 30 according to actual needs. Furthermore, it facilitates adjustment of the tension of the adjustment strap 20, preventing it from becoming misaligned with the main body 10 after prolonged use. It also facilitates replacement of the backrest 30, preventing damage or size mismatch that could affect its support effectiveness.

[0053] Furthermore, such as Figure 4 and Figure 5 As shown, the adjusting strap 20 has fixed sections 201 at both ends in its length direction and an intermediate section 202 between the two fixed sections 201. The headrest 30 is installed on the intermediate section 202 so that it can slide within the length range of the intermediate section 202. The intermediate section 202 is located on the side of the dental chair body 10 facing the patient. The end of the adjusting strap 20 surrounds the dental chair body 10, such that at least part of the fixed sections 201 is located on the side of the dental chair body 10 away from the patient.

[0054] Specifically, the dental chair movable backrest also includes a mounting piece 40 installed on the side of the dental chair body 10 facing away from the patient. The mounting piece 40 is installed on the chair frame plate of the dental chair body 10. The mounting piece 40 has a perforation 41, which can be a polygonal, elliptical, or circular hole structure. The end of the fixed section 201 away from the middle section 202 is formed as a free end 2011. The part of the fixed section 201 that does not pass through the perforation 41 is formed as a fixed part 2012. The free end 2011 passes through the perforation 41 and is connected to the fixed part 2012. The free end 2011 can be passed through the perforation 41 and then sewn to the fixed part 2012. In this way, the adjustment strap 20 is fixed to the mounting piece 40. The detachable connection between the mounting piece 40 and the dental chair body 10 is used to achieve the detachable connection between the adjustment strap 20 and the dental chair body 10.

[0055] More specifically, such as Figure 5As shown, the mounting member 40 includes two clamping jaws 402 arranged opposite to each other, making the mounting member 40 a clamping structure. A through hole 41 is provided on one of the clamping jaws 402, preferably located away from the clamping jaw 402 where the patient is lying on the dental chair body 10. One end of the two clamping jaws 402 is connected, and the other end of the two clamping jaws 402 forms a clamping opening 403 that clamps onto the dental chair body 10. The mounting member 40 has a clamping part 401 that can contact the dental chair body 10. In the direction in which the dental chair body 10 extends into the clamping opening 403, the distance between the two clamping jaws 402 gradually decreases and then gradually increases, so that the mounting member 40 has an overall structure that is wide at the bottom (i.e., the side where the two clamping jaws 402 are connected), narrow in the middle, and wide at the top (i.e., the side where the clamping opening 403 is located). The clamping part 401 is formed at the position where the distance between the two clamping jaws 402 is the smallest, thus enabling the mounting member 40 to be clamped onto the dental chair body 10 by the clamping part 401.

[0056] It should be noted that the distance between the two jaws 402 gradually decreases and then gradually increases, making the distance between the two jaws 402 wider in the bottom area of ​​the mounting part 40 than in the area of ​​the clamping part 401. This provides a stable support base for the mounting part 40. During the clamping process, the wide bottom design helps to enhance the structural stability of the entire mounting part 40, ensuring that it remains stable when the clamping part 401 is under force and is not prone to tilting or shaking. The two jaws 402 narrow significantly in the middle area of ​​the mounting part 40, making the clamping part a narrow structure with the two jaws 402 close to each other. This helps to concentrate the clamping force, ensure reliable clamping, and improve the clamping effect. The two jaws 402 gradually extend from the clamping part 401 to the top and simultaneously expand outward to the opposite sides, making the top of the two jaws 402 form a curved structure. This facilitates the insertion of the dental chair body 10 into the clamping part 401.

[0057] Preferably, as the two grippers 402 gradually extend from the clamping part 401 towards the top, the degree of curvature gradually increases. This ensures reliable clamping by the clamping part 401 while simultaneously increasing the distance between the two grippers 402 and expanding outwards to both sides. Ultimately, a larger clamping opening 403 is presented at the top. Thus, during installation, as the chair frame plate is inserted into the clamping part 401, the expanded top guides the chair frame plate into the appropriate clamping position, allowing the mounting component 40 to be installed on the main body 10 of the dental chair more conveniently and efficiently, thereby enabling the adjustment strap 20 to be installed on the main body 10 of the dental chair. When the backrest component 30 is not needed, the mounting component 40 can be removed from the main body 10 of the dental chair, so that the adjustment strap 20 and the backrest component 30 are no longer installed on the dental chair column, allowing for free installation according to actual needs.

[0058] Preferably, in the second embodiment, the adjustment straps 20 and the pillow 30 on the backrest 12, seat cushion 13 and headrest 11 are all detachably connected by mounting parts 40.

[0059] Optionally, the dental chair movable headrest also includes a connector disposed on the side of the free end 2011 that passes through the perforation 41 and faces the fixed part 2012. The connector can be a snap fastener or a Velcro, thus realizing a detachable connection between the free end 2011 and the fixed part 2012. This allows the adjustment strap 20 to be removed from the dental chair body 10 without removing the mounting part 40 from the dental chair body 10.

[0060] According to the present invention, a movable backrest for a dental chair has an adjusting strap mounted on the main body of the dental chair. The adjusting strap is formed as a strip-shaped structure extending along the length of the main body of the dental chair. The backrest has a supporting part and a strap part located on the side of the supporting part facing the main body of the dental chair. The adjusting strap passes through the strap part and the supporting part to form a through hole, allowing the backrest to slide along the extension direction of the adjusting strap. This allows the position of the backrest on the adjusting strap to be adjusted according to the patient's body shape, providing effective support to the patient, alleviating the problem of physical fatigue that patients easily experience during long treatments, and improving the patient's treatment experience.

[0061] The dental chair provided by this utility model includes the aforementioned movable dental chair backrest, and thus has all the beneficial effects of the movable dental chair backrest, which will not be repeated here.

[0062] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

1. A movable backrest for dental chairs, characterized in that, include: An adjustment strap is provided on the main body of the dental chair, and the adjustment strap is formed as a strip structure extending along the length direction of the main body of the dental chair; The backrest has a support portion and a strap portion disposed on the side of the support portion facing the main body of the dental chair. The adjustment strap passes through a through hole formed by the strap portion and the support portion, so that the backrest can slide along the extension direction of the adjustment strap.

2. The movable backrest for dental chairs according to claim 1, characterized in that, The main body of the dental chair includes a headrest, a backrest, and a seat cushion, with the headrest and the seat cushion respectively disposed on opposite sides of the backrest. The adjustment straps include a first strap disposed on the headrest, a second strap disposed on the backrest, and a third strap disposed on the seat cushion; The pillow assembly includes a first pillow mounted on the first strap, a second pillow mounted on the second strap, and a third pillow mounted on the third strap.

3. The movable backrest for dental chairs according to claim 1, characterized in that, The adjustment strap is located at the middle position of the dental chair body in the width direction.

4. The movable backrest for dental chairs according to claim 1, characterized in that, The strap is elastic, allowing it to fit snugly against the support before the adjusting strap passes through the through hole.

5. The movable backrest for dental chairs according to claim 1, characterized in that, The adjustment strap is non-detachably connected to the main body of the dental chair.

6. The movable backrest for dental chairs according to claim 1, characterized in that, The adjustment strap is detachably connected to the main body of the dental chair.

7. The movable backrest for dental chairs according to claim 6, characterized in that, The adjusting strap has fixed sections at both ends along its length and an intermediate section between the two fixed sections, and the headrest is mounted on the intermediate section; Also includes: The mounting component is installed on the side of the dental chair body facing away from the patient. The mounting component has a perforation. The end of the fixing section away from the middle section is formed as a free end. The part of the fixing section that does not pass through the perforation forms a fixing part. The free end passes through the perforation and connects to the fixing part.

8. The movable backrest for dental chairs according to claim 7, characterized in that, Also includes: A connector is disposed on the side of the free end that passes through the perforation and faces the fixing part.

9. The movable backrest for dental chairs according to claim 7, characterized in that, The mounting component includes two jaws arranged opposite to each other, and the through hole is provided on one of the jaws; One end of the two jaws is connected, and the other end of the two jaws forms a clamping opening that clamps onto the main body of the dental chair. The mounting member has a clamping part that can contact the main body of the dental chair. In the direction in which the dental chair body extends into the clamping opening, the distance between the two jaws first gradually decreases and then gradually increases, and the clamping part is formed at the position where the distance between the two jaws is the smallest.

10. A dental chair, characterized in that, The dental chair movable cushion includes any one of claims 1 to 9.

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