KR20210059937A - Intra-oral sensor - Google Patents

Abstract

The invention for an oral sensor is disclosed. The invention comprises: a cover having an accommodating space therein and having a window provided on one side thereof; a circuit board disposed inside the cover; an image sensor disposed between the circuit board and the window inside the cover and connected to the circuit board; a light emitting body disposed between the image sensor and the window inside the cover; and a buffer member disposed between the light emitting body and the cover inside the cover.

Description

Oral sensor {INTRA-ORAL SENSOR}

The present invention relates to an oral sensor used for photographing teeth.

In general, in order to treat a tooth or manufacture an artificial tooth, it is necessary to first acquire image information of the tooth by photographing the inside of the oral cavity.

Typically, the apparatus for obtaining dental image information includes a desk computer for inputting patient information, an X-ray photographing unit for photographing the patient's tooth condition, and an image captured by the X-ray photographing unit on a screen. May include a monitor.

In addition, the X-ray imaging unit may include a controller for manipulating X-ray imaging, an X-ray imaging device for imaging a state of a tooth by irradiating an X-ray, and an oral sensor inserted into the oral cavity of the patient. .

The controller is provided on a wall or on a separate stand, and may be connected to the X-ray imager by a plurality of arms that are free to rotate.

And the oral sensor is connected to the cable, this cable can be connected detachably to the controller.

In order to photograph the patient's teeth using the tooth image information acquisition device, first, a cable connected to the oral sensor is connected to the controller, and the oral sensor is inserted into the oral cavity of the patient and placed on the tooth portion to be photographed.

Then, after positioning the X-ray imager in the patient's oral region, the controller is operated to irradiate X-rays toward the oral sensor.

Subsequently, when the oral sensor converts the image information of the tooth into a digital signal and transmits it to a computer, the image of the tooth can be checked through a monitor.

Among the above tooth image information acquisition devices, the oral sensor is a device that is expensive and can be easily damaged, and therefore special care is required in its handling. However, due to its characteristics, the oral sensor is not only easily exposed to the risk of falling in the process of use, but also has a high risk of being damaged by falling to the floor in the process of being connected or disconnected from the controller and in the process of being mounted or stored.

Inside the oral sensor, an image sensor for acquiring an image, a luminous body that emits light by X-rays so that the image sensor can sense X-rays are provided. The image sensor or the luminous body can be easily damaged by impact, and in particular, the luminous body has a property that is very vulnerable to impact.

Due to the characteristics of the luminous body, when the oral sensor falls on the floor, the edge of the luminous body may be easily damaged, and thus, an error may occur in the sensing of the oral sensor.

Therefore, it is required to design the structure of the oral sensor to prevent damage to the luminous body.

An object of the present invention is to provide an oral sensor having an improved structure so that damage caused by impact is suppressed.

An oral sensor according to an embodiment of the present invention for achieving the above object is characterized in that a buffer member is disposed between the cover and the light-emitting body accommodated in the cover.

With this configuration, the impact transmitted through the cover is absorbed by the cushioning member, so that the luminous body can be protected from the impact.

An oral sensor according to an aspect of the present invention includes: a cover having an accommodation space formed therein and a window provided at one side thereof; A circuit board disposed inside the cover; An image sensor disposed between the circuit board and the window in the cover and connected to the circuit board; A light emitter disposed between the image sensor and the window inside the cover; And a buffer member disposed between the light-emitting body and the cover in the cover.

In addition, the cover includes a front portion formed in a plane facing the light-emitting body, on which the window is disposed, and a sidewall portion extending from an edge of the front portion along a stacking direction of the circuit board, the image sensor, and the light-emitting body, It is preferable that the buffer member covers an edge where the front portion and the side wall portion are connected and is disposed between the light-emitting body and the cover.

In addition, the buffer member may include a side cover part disposed between the side wall part and the light-emitting body; And a front cover portion disposed between the front portion and the light-emitting body, wherein the side cover portion and the front cover portion are connected to each other, and the edge of the cover is preferably covered.

In addition, it is preferable that at least one of the side cover portion and the front cover portion includes a plurality of sides extending along an edge of the front portion, and the plurality of sides are connected to each other to form a closed cross-section.

In addition, it is preferable that the front cover part includes a plurality of sides extending along an edge of the front part, and the plurality of sides are connected to each other to form a closed cross-section.

In addition, it is preferable that the buffer member further includes a connection support portion disposed inside the front cover portion and connected to two or more sides of the front cover portion.

In addition, it is preferable that the connection support part is formed of an elastically deformable material and is disposed between the front part and the light-emitting body.

In addition, it is preferable that the connection support part is connected to two or more vertices of the front cover part.

In addition, the connection support is preferably formed in a mesh shape.

In addition, the case further comprises a case disposed on the other side of the cover and coupled to the cover, the circuit board, the image sensor, the light-emitting body, and the buffer member are stacked inside the cover and the case coupled to each other, and the case A pressing protrusion for pressing any one of the image sensor, the light-emitting body, and the buffer member to one side of the cover so that the circuit board, the image sensor, the light-emitting body, and the buffer member are in close contact with each other toward one side of the cover. It is preferable to further include.

In addition, it is preferable that the light-emitting body includes a scintillator.

In addition, it is preferable that the buffer member is formed of an elastically deformable material.

In addition, the buffer member may be formed of a soft silicone material.

The present invention effectively protects internal parts that are vulnerable to impacts, such as a luminous body, from damage by allowing the impact to be absorbed by the oral sensor through a buffer member, and it is possible to prevent an error from occurring as a result of sensing due to damage of the internal parts.

1 is a perspective view showing an oral sensor according to an embodiment of the present invention.
Figure 2 is a front view showing the oral sensor shown in Figure 1;
3 is a plan view showing the oral sensor shown in FIG. 1.
4 is a cross-sectional view taken along the line "IV-IV" of FIG. 1.
5 is a perspective view showing the cover and the buffer member shown in FIG. 4 separated.
6 is a perspective view showing the buffer member shown in FIG. 5 separated.

Hereinafter, specific examples of the present application will be described in more detail with reference to the accompanying drawings. However, the technology disclosed in the present application is not limited to the specific examples described herein and may be embodied in other forms.

However, the specific embodiments introduced herein are provided so that the disclosed content may be thorough and complete, and the spirit of the present application may be sufficiently conveyed to those skilled in the art. In the drawings, in order to clearly express the constituent elements of each device, the size of the constituent elements, such as width or thickness, is slightly enlarged. In addition, although only some of the components are shown for convenience of description, those skilled in the art will be able to easily grasp the remaining parts of the components.

When it is described as a whole from the observer's point of view when describing the drawings, and when an element is referred to as being positioned above or below another element, this means that the element is positioned directly above or below the other element, or an additional element between those elements. It includes all meanings that can be intervened. In addition, those of ordinary skill in the relevant field will be able to implement the spirit of the present application in various other forms within the scope of the technical spirit of the present application. In addition, the same reference numerals in the plurality of drawings refer to elements that are substantially the same as each other.

On the other hand, the singular expression described in the present application should be understood to include a plurality of expressions, unless the context clearly indicates otherwise, and terms such as'include' or'have' are described features, numbers, steps, To designate presence in an action, component, part, or combination thereof, but precludes the possibility of the presence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. It should be understood as not doing.

In the present specification, the "unit" includes a unit realized by hardware, a unit realized by software, and a unit realized using both. Further, one unit may be realized by using two or more hardware, or two or more units may be realized by one piece of hardware. Meanwhile,'~ unit' is not meant to be limited to software or hardware, and'~ unit' may be configured to be in an addressable storage medium or configured to reproduce one or more processors. Thus, as an example,'~ unit' refers to components such as software components, object-oriented software components, class components, and task components, processes, functions, properties, and procedures. , Subroutines, segments of program code, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays and variables. The functions provided in the components and'~units' may be combined into a smaller number of components and'~units', or may be further separated into additional components and'~units'. In addition, components and'~ units' may be implemented to play one or more CPUs in a device or a secure multimedia card.

In addition, in this specification,'X to Y'indicating a range means'X or more and Y or less'.

[Overall composition of oral sensor]

1 is a perspective view showing an oral sensor according to an embodiment of the present invention, Figure 2 is a front view showing the oral sensor shown in FIG. In addition, FIG. 3 is a plan view showing the oral sensor shown in FIG. 1, and FIG. 4 is a cross-sectional view taken along line "IV-IV" of FIG. 1.

1 to 4, the oral sensor 100 according to an embodiment of the present invention includes a case 110, a cover 120, a circuit board 130, an image sensor 140, a luminous body 150, and It includes a buffer member 160.

The case 110 and the cover 120 form the appearance of the oral sensor according to the present embodiment. As an example, the combination of the case 110 and the cover 120 may include a substantially rectangular parallelepiped shape.

The case 110 may be formed in a hexahedral shape with an open front. An accommodation space may be formed inside the case 110, and a circuit board 130 and a part of a cable connected to the circuit board 130 may be accommodated in the accommodation space.

Define the direction. "Front" refers to a direction in which the cover 120 is located from the case 110, and "rear" refers to a direction in which the case 110 is located from the cover 120 as the opposite direction.

The case 110 may include a rear portion 111 and a first side wall portion 115. The rear part 111 may be formed in a planar shape perpendicular to the stacking direction of the circuit board 130, the image sensor 140, and the light-emitting body 150, which will be described later. In addition, the first sidewall portion 115 may be formed as a surface extending forward from the edge of the rear portion 111.

In the case 110, more specifically, the rear portion 111, a convex portion 112 may be formed to be convex rearward. In addition, the convex portion 112 may be fitted with a cable support portion 113. A cable connected to the circuit board 130 may extend to the outside of the case 110 through the cable support part 113 from the inside of the convex part 112. In this way, the cable extending to the outside of the case 110 may be detachably connected to a controller provided to manipulate the device for obtaining tooth image information.

The cover 120 is disposed in front of the case 110. This cover 120 may be formed in a hexahedral shape with an open rear. The cover 120 may include a front portion 121 and a second sidewall portion 125.

The front part 121 may be disposed at the foremost of the oral sensor 100. In the present embodiment, it is exemplified that the front part 121 is formed in a planar shape perpendicular to the stacking direction of the circuit board 130, the image sensor 140, and the light-emitting body 150 to be described later. A window W may be disposed on the front part 121. The window W may be formed in a plane facing the light-emitting body 150 to be described later. X-rays irradiated toward the oral sensor 100 may pass through the cover 120 through the window W and reach the luminous body 150.

The second sidewall portion 125 may be formed in a stacking direction of the circuit board 130, the image sensor 140, and the light-emitting body 150 from the front portion 121, that is, a surface extending forward.

The circuit board 130, the image sensor 140, and the light-emitting body 150 are accommodated inside the cover 120, more specifically, in an accommodation space surrounded by the case 110 and the cover 120. According to the present embodiment, the circuit board 130, the image sensor 140, and the light-emitting body 150 may be sequentially stacked from a side close to the rear part 111 of the cover 120.

[Internal structure of the oral sensor]

The circuit board 130 may be disposed inside the cover 120, more specifically, in an accommodation space surrounded by the case 110 and the cover 120. In this embodiment, the circuit board 130 is disposed on the closest side to the rear part 111 of the case 110 among the stacked bodies of the circuit board 130, the image sensor 140, and the light-emitting body 150, and at the rearmost side. It is illustrated as. Various elements and patterns required for driving the image sensor 140 may be provided on the circuit board 130.

The image sensor 140 may be disposed between the circuit board 130 and the window W inside the cover 120. In this embodiment, it is illustrated that the image sensor 140 includes CMOS. The image sensor 140 may detect X-rays passing through the window W and convert them into electrical image signals.

The light-emitting body 150 may be disposed between the image sensor 140 and the window W inside the cover 120. The light-emitting body 150 may include a scintillator. The scintillator can emit visible light by absorbing the energy when radiation such as X-rays or gamma rays is touched. The degree of light emission of the scintillator varies according to the X-ray intensity, whereby an image may be generated by X-rays irradiated to the scintillator. The image sensor 140 may detect X-rays by sensing the generated image and convert it into an electrical image signal.

The scintillator may be a Gadolinium OxySulfide Scintillator (GOS) or a Fiber Optic scintillator (FOS). GOS has the advantage of being inexpensive and flexible and not easily damaged, but has a short lifespan and low resolution. FOS has the advantage of having a long life and high resolution, but it has the disadvantage of being hard and easy to break and expensive.

In this embodiment, the light-emitting body 150 may include a scintillator in the form of an FOS. The oral sensor 100 having the luminous body 150 including such a scintillator has an advantage of obtaining a high-resolution tooth image.

Meanwhile, a support substrate 170 may be disposed between the rear part 111 of the case 110 and the circuit board 130. The support substrate 170 may be supported by the rear part 111 of the case 110, and the circuit board 130 may be supported from the rear. The support substrate 170 may be formed of a stainless metal material.

When the oral sensor 100 is driven, high heat may be generated in the circuit board 130, which may cause bending deformation of the circuit board 130. The support substrate 170 serves to suppress the occurrence of bending deformation of the circuit board 130 by supporting the circuit board 130 at the rear of the circuit board 130.

In addition, since the support substrate 170 is formed of a metal material having a high thermal conductivity, it may serve as a heat dissipating plate for dissipating heat generated from the circuit board 130 in contact with the circuit board 130. Accordingly, while excessive temperature rise of the circuit board 130 is suppressed, the occurrence of bending deformation of the circuit board 130 due to heat may be more effectively suppressed.

The bonding between the circuit board 130 and the image sensor 140 may be made by the first adhesive layer 135. In addition, bonding between the image sensor 140 and the light-emitting body 150 may be achieved by the second adhesive layer 145. The first adhesive layer 135 may be formed by applying a soft epoxy between the circuit board 130 and the image sensor 140. In addition, the second adhesive layer 145 may be formed by applying a soft epoxy between the image sensor 140 and the light-emitting body 150.

The buffer member 160 may be disposed between the light-emitting body 150 and the cover 120 within the cover 120. The buffer member 160 serves to prevent the light-emitting body 150 from directly contacting the cover 120 and to prevent the impact applied through the cover 120 from being transmitted to the light-emitting body 150. A detailed description of this will be described later.

In addition, in the case 110, a pressing protrusion 114 may be provided. The pressing protrusion 114 may be formed to protrude from the convex portion 112 toward the cover 120, that is, in a downward direction. This pressing protrusion 114 is a configuration arranged closest to the pressing protrusion 114 among the stacked body of the circuit board 130, the image sensor 140, and the light-emitting body 150, that is, the circuit board 130 in the lower direction. It can be pressed and pressurized.

Accordingly, the stacked body of the circuit board 130, the image sensor 140, and the light-emitting body 150 can be stably fixed inside the cover 120 while being in close contact with the buffer member 160, and as a result, the oral sensor 100 ), the reliability of the photographing result can be further improved.

[Composition and action of the buffer member]

5 is a perspective view showing the cover and the buffer member shown in FIG. 4 separated, and FIG. 6 is a perspective view showing the buffer member shown in FIG. 5 separated.

4 to 6, the buffer member 160 is disposed between the light-emitting body 150 and the cover 120 in the cover 120, the front portion 121 and the second side wall of the cover 120 It covers the edge to which the part 125 is connected and may be disposed between the light-emitting body 150 and the cover 120. The buffer member 160 may include a side cover portion 161 and a front cover portion 163.

The side cover part 161 may be disposed between the second side wall part 125 of the cover 120 and the light emitting body 150. The side cover part 161 may include a plurality of sides extending along the edge of the front part 121, and the plurality of sides may be connected to each other to form a closed cross-section. As an example, the side cover part 161 may include four sides extending along the edge of the front part 121 formed in an approximately square shape, and the four sides are connected to each other to form a rectangular-shaped closed cross-section. I can.

The front cover part 163 may be disposed between the front part 121 of the cover 120 and the light emitter 150. The front cover part 163 may include a plurality of sides extending along the edge of the front part 121, and the plurality of sides may be connected to each other to form a closed cross-section. As an example, the front cover portion 163 may include four sides extending along the edge of the front portion 121 formed in an approximately square shape, and the four sides are connected to each other to form a rectangular-shaped closed cross-section. I can.

And each side of the side cover part 161 and each side of the front cover part 163 are connected to each other, and may be connected to form a "b" shape. The side cover part 161 and the front cover part 163 connected in this way may be installed inside the cover 120 in a form that covers the edge of the cover 120.

The buffer member 160 may be formed of an elastically deformable material. In this embodiment, it is exemplified that the buffer member 160 is formed of a soft silicone material, and is formed of a silicone material having a shore hardness (Hs) of 20 to 60A. Such a buffer member 160, while having sufficient hardness to withstand the impact applied to the buffer member 160, will be provided in a form suitable for effectively absorbing the received impact so that the impact is not transmitted to the luminous body 150. I can.

The outside of the buffer member 160 provided as described above covers the edge of the cover 120, and the inside of the buffer member 160 may wrap the edge of the light emitting member 150 from the outside. Such a buffer member 160 may alleviate the shock received by the luminous body 150 by absorbing the shock transmitted through the cover 120 when an external force is applied to the oral sensor 100.

That is, the oral sensor 100 of the present embodiment effectively protects the internal parts vulnerable to impact such as the luminous body 150 from damage by allowing the impact to the oral sensor 100 to be absorbed through the buffer member 160, and the internal parts It is possible to prevent an error from occurring as a result of sensing due to the damage of.

According to this embodiment, the light-emitting body 150 may be provided in a form including a scintillator in the form of an FOS. The luminous body 150 provided in this form has the advantage of obtaining a high-resolution tooth image, but it is hard and is easy to break and is expensive.

That is, in order for the oral sensor 100 of the present embodiment to obtain a high-resolution tooth image, a scintillator in the form of an FOS should be used, but in this case, the risk that the luminous body 150 is easily damaged even with a small impact increases.

In consideration of this point, in this embodiment, the buffer member 160 is interposed between the light-emitting body 150 and the cover 120, and the impact transmitted through the cover 120 when an external force is applied to the oral sensor 100 A protective structure to be absorbed by the buffer member 160 is adopted. Accordingly, since the luminous body 150 can be effectively protected from damage due to impact, the luminous body 150 can not be easily damaged even if an impact is applied to the oral sensor 100 due to user carelessness or accidental movement and storage. do.

In addition, the buffer member 160 may further include a connection support part 165. The connection support part 165 is disposed inside the front cover part 163 and is formed to be connected to two or more sides of the front cover part 163. The connection support part 165 may be disposed between the front part 121 of the cover 120 and the light-emitting body 150.

The connection support 165 may be formed of an elastically deformable material. In this embodiment, it is illustrated that the buffer member 160 is formed of a soft silicone material. That is, in the buffer member 160, the side cover portion 161, the front cover portion 163, and the connection support portion 165 may be integrally formed of a soft silicone material.

Specifically, the connection support part 165 may be formed to be connected to two or more vertices of the front cover part 163. In this embodiment, it is illustrated that the connection support 165 is formed in a mesh shape. A plurality of through-holes 167 may be formed on the front surface of the buffer member 160 on which the connection support part 165 formed as described above is disposed. That is, on the front surface of the buffer member 160, a plurality of through holes 167 may be disposed between the connection support portions 165 formed in a mesh shape.

By providing the connection support 165 to the buffer member 160 as described above, the following effects may be provided.

First, the impact applied to the side cover portion 161 and the front cover portion 163 of the buffer member 160 may be distributed to the connection support portion 165.

When the oral sensor 100 falls on the floor, the corners or vertices of the cover 120 mainly hit the floor, and thus, a large impact is applied to the corners or vertices of the cover 120. In particular, when the vertex portion of the cover 120 hits the floor, a very large impact is intensively applied to the portion, and this impact is transmitted to the vertex portions of the side cover portion 161 and the front cover portion 163 as it is. I can.

In order to absorb the shock transmitted to the vertices of the side cover portion 161 and the front cover portion 163 as much as possible by the buffer member 160, the thickness of the buffer member 160 must be increased by that amount. However, as the thickness of the buffer member 160 increases, a problem in that the overall size of the oral sensor 100 increases, and a problem in that the reliability of the photographing result of the oral sensor 100 decreases may occur.

In consideration of this point, in this embodiment, by providing the connection support part 165 to the buffer member 160, the impact applied to the vertices of the side cover part 161 and the front cover part 163 is applied to the connection support part ( 165).

In particular, the connection support part 165 is formed in a mesh shape, and accordingly, the connection support part 165 may be deformed to some extent along the plane direction of the front cover part 163. As a result, when the impact is transmitted to the connection support 165, the connection support 165 is deformed in shape, so that the impact can be effectively absorbed.

That is, the impact applied to the vertices of the side cover part 161 and the front cover part 163 is distributed through the connection support part 165, and the connection support part 165 provided so that the shape can be deformed effectively absorbs the impact. Therefore, the shock transmitted to the buffer member 160 is absorbed very effectively, so that the light-emitting body 150 can be effectively protected from the shock by the buffer member 160.

Accordingly, without increasing the thickness of the buffer member 160, a large impact on the corners or vertices of the cover 120 can be effectively absorbed by the buffer member 160, and as a result, the size of the oral sensor 100 is increased. And it is possible to effectively protect the light-emitting body 150 from impact while preventing a reduction in reliability as a result of the photographing.

Second, the shape of the buffer member 160 can be effectively maintained.

In order to effectively absorb the impact, the buffer member 160 is formed of a soft material. Therefore, if the buffer member 160 is formed of only the side cover portion 161 and the front cover portion 163 without the connection support portion 165, the buffer member 160 may not properly maintain the square shape and may be easily crushed.

According to the present embodiment, since each side of the front cover part 163 is connected by the connection support part 165, the buffer member 160 can have structural rigidity required to maintain its shape.

As the buffer member 160 has rigidity capable of maintaining its shape, the operation of inserting the buffer member 160 between the cover 120 and the light-emitting body 150 can be easily performed, so that the oral sensor 100 ) Manufacturing can be made easier and faster.

Although the specific examples of the present invention have been described above, the present invention is not limited to the above specific examples, but may be manufactured in a variety of different forms, and those of ordinary skill in the technical field to which the present invention pertains to the technical idea of the present invention. It will be appreciated that it can be implemented in other specific forms without changing any or essential features. Therefore, it is to be understood that the specific examples described above are illustrative and non-limiting in all respects.

100: oral sensor
110: case
111: rear part
112: convex portion
113: cable support
114: pressure protrusion
115: first side wall portion
120: cover
121: front

Claims (13)

A cover having an accommodation space formed therein and a window provided on one side thereof;
A circuit board disposed inside the cover;
An image sensor disposed between the circuit board and the window in the cover and connected to the circuit board;
A light emitter disposed between the image sensor and the window inside the cover; And
Oral sensor comprising a; a buffer member disposed between the light and the cover in the inside of the cover.
The method of claim 1,
The cover includes a front portion formed in a plane facing the light-emitting body, on which the window is disposed, and a sidewall portion extending from an edge of the front portion along a stacking direction of the circuit board, the image sensor, and the light-emitting body,
The buffer member covers an edge to which the front part and the side wall part are connected, and the oral sensor is disposed between the light-emitting body and the cover.
The method of claim 2, wherein the buffer member,
A side cover portion disposed between the side wall portion and the light-emitting body; And
Includes; a front cover portion disposed between the front portion and the light-emitting body,
The side cover part and the front cover part are connected to each other, and the oral sensor covers the edge of the cover.
The method of claim 3,
At least one of the side cover part and the front cover part includes a plurality of sides extending along an edge of the front part, and the plurality of sides are connected to each other to form a closed cross-section.
The method of claim 3,
The front cover part includes a plurality of sides extending along an edge of the front part, and the plurality of sides are connected to each other to form a closed cross-section.
The method of claim 5,
The buffer member, the oral sensor further comprises a connection support portion disposed inside the front cover portion and connected to two or more sides of the front cover portion.
The method of claim 6,
The connection support part is formed of an elastically deformable material and is disposed between the front part and the light-emitting body.
The method of claim 7,
The connection support part, the oral sensor connected to two or more vertices of the front cover part.
The method of claim 8,
The connection support portion, oral sensor formed in a mesh shape.
The method of claim 1,
Further comprising a case disposed on the other side of the cover and coupled to the cover,
The circuit board, the image sensor, the light-emitting body, and the buffer member are stacked inside the cover and the case coupled to each other,
The case is configured to pressurize any one of the image sensor, the light-emitting body, and the buffer member to one side of the cover so that the circuit board, the image sensor, the light-emitting body, and the buffer member are in close contact with one side of the cover Oral sensor further comprising a pressure protrusion.
The method of claim 1,
The luminous body is an oral sensor comprising a scintillator.
The method according to any one of claims 1 to 11,
The buffer member is an oral sensor formed of an elastically deformable material.
The method of claim 12,
The buffer member is an oral sensor formed of a soft silicone material.

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