Sheath for an oral cavity humidity tester and oral cavity humidity tester kit

Abstract

The application relates to the technical field of biosensors for diagnostic purposes, in particular to a sheath for an oral cavity humidity tester and an oral cavity humidity tester kit, which can be used for the condition examination of patients with xerostomia. The sheath comprises a first protective sheet, a first membrane sheet, a second membrane sheet and a second protective sheet which are sequentially stacked in a thickness direction and are all formed into an elongated shape which is longer in a length direction and are all flexible structures, the flexibility of the first protective sheet and the second protective sheet is lower than that of the first membrane sheet and the second membrane sheet, the first end side of the first membrane sheet and the second membrane sheet in the length direction and the two end sides in a width direction are bonded to each other, thereby forming a sleeve-shaped body which is open at the second end side in the length direction, the width direction is perpendicular to the length direction and the thickness direction respectively; the first protective sheet and the second protective sheet respectively have a first overhanging section and a second overhanging section which extend to the outside of the first end side in the length direction, and the first overhanging section and the second overhanging section are detachably bonded.

Description

Technical Field

[0001] This application relates to the field of biosensor technology for diagnostic purposes, and more particularly to a sheath and oral humidity tester kit for an oral humidity tester. Background Technology

[0002] An oral hygrometer is a medical device used to measure oral moisture, commonly used to examine patients with xerostomia. To prevent cross-infection, a disposable protective sleeve meeting relevant hygiene standards should be used on the part of the oral hygrometer that enters the mouth during use.

[0003] How to optimize the structural design of these protective sleeves so that medical personnel can easily put them on oral humidity testing instruments has been a topic of continuous concern for technicians in the field. Summary of the Invention

[0004] In view of this, this application provides a protective sleeve for an oral humidity tester and an oral humidity tester kit.

[0005] In a first aspect, a sheath is proposed for covering the head of an oral humidity tester to separate the head from the inner wall of the patient's oral cavity. The sheath is characterized by comprising a first protective sheet, a first diaphragm, a second diaphragm, and a second protective sheet, all stacked sequentially in the thickness direction and each formed into an elongated shape in the length direction, and all being flexible structures. The flexibility of the first and second protective sheets is lower than that of the first and second diaphragms. The first and second diaphragms are joined together at a first end in the length direction and at two ends in the width direction to form a sheath-like body capable of opening at a second end in the length direction. The width direction is perpendicular to both the length direction and the thickness direction.

[0006] The first protective plate and the second protective plate each have a first protruding section and a second protruding section extending beyond the first end side in the length direction, and the first protruding section and the second protruding section are separably bonded together.

[0007] In some possible implementations, the dimension of the first protruding segment along the length direction is smaller than the dimension of the second protruding segment along the length direction.

[0008] In some possible implementations, the first diaphragm is detachably bonded to the first protective sheet over its entire surface area, and the adhesive force between the first diaphragm and the first protective sheet is less than the adhesive force between the first extension and the second extension.

[0009] In some possible implementations, the second protective sheet has a seventh surface facing the second diaphragm, the seventh surface having an adhesive area that is separably bonded to the second diaphragm, the adhesive area extending at least along the entire length of the second diaphragm in the length direction, and the dimension of the adhesive area in the width direction gradually decreasing from the first end side to the second end side.

[0010] In some possible implementations, the first protective sheet is detachably bonded to the first diaphragm, and the second protective sheet is detachably bonded to the second diaphragm;

[0011] When viewed along the thickness direction, the first protective sheet completely covers the first membrane, and the second protective sheet completely covers the second membrane.

[0012] In some possible implementations, the oral humidity tester has a cam, and the first diaphragm has a first pull strap extending in the length direction beyond the second end side, the first pull strap having a first sleeve hole through in the thickness direction for fitting onto the cam.

[0013] In some possible implementations, the first protective strip has a second pull strap that covers the first pull strap and is detachably bonded to the first pull strap, the second pull strap having a second sleeve hole that overlaps with the first sleeve hole.

[0014] In some possible implementations, the second protective strip has a third protruding section extending beyond the second end side in the length direction, the dimension of the third protruding section in the length direction being smaller than the dimension of the second pull strap in the length direction, and the dimension of the third protruding section in the width direction being larger than the dimension of the second pull strap in the width direction.

[0015] In some possible implementations, the third protruding section is detachably bonded to the first pull strap.

[0016] Secondly, this application proposes an oral cavity humidity testing kit, comprising:

[0017] As described in the first aspect, and

[0018] The oral humidity tester has a capacitive sensor in its head for detecting the water content in the subject's oral cavity.

[0019] According to the protective sleeve for an oral humidity tester provided in this application, on the one hand, it can maintain a flat overall shape when not in use, suppressing wrinkles and deformation, thereby making the storage and transportation of the protective sleeve easy; on the other hand, when in use, it can be easily put on the oral humidity tester, and the first and second protective sheets can be easily peeled off. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this application, and are not intended to limit this application.

[0021] Figure 1 This is a cross-sectional schematic diagram of the oral humidity testing kit provided in an embodiment of this application in its use state.

[0022] Figure 2 yes Figure 1 A schematic diagram of the oral humidity tester kit during the assembly process.

[0023] Figure 3 yes Figure 1 An exploded view of the sheath corresponding to the embodiment.

[0024] Figure 4 yes Figure 1 A cross-sectional schematic diagram of the sheath corresponding to the embodiment in the non-use state.

[0025] Figure 5 This is an exploded view of the sheath provided in another embodiment of this application.

[0026] Figure 6 yes Figure 5 A cross-sectional schematic diagram of the sheath corresponding to the embodiment in the non-use state.

[0027] Figure 7 yes Figure 5 The schematic diagram shows the relative positions of the first diaphragm and the second protective sheet in the top view of the embodiment.

[0028] Figure 8 This is an exploded view of the sheath provided in another embodiment of this application.

[0029] Figure 9 yes Figure 8 A cross-sectional schematic diagram of the sheath corresponding to the embodiment in the non-use state.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1000-Oral Hygrometer Kit;

[0032] 100 - Oral moisture meter, 200 - Protective cover;

[0033] DR1 - thickness direction, DR2 - length direction, DR3 - width direction;

[0034] 1-First protective plate, 1U-First surface, 1D-Second surface, 11-Second pull strap, 12-Second sleeve hole, 13-First protruding section;

[0035] 2-First diaphragm, 2U-Third surface, 2D-Fourth surface, 21-First pull strip, 22-First sleeve hole;

[0036] 3-Second diaphragm, 3U-Fifth surface, 3D-Sixth surface;

[0037] 4-Second protective sheet, 4U-Seventh surface, 4D-Eighth surface, 41-Second adhesive, 4P-Adhesive area, 42-Second protrusion, 43-Third protrusion;

[0038] 5-Sheath-like body, 5R-First end side, 5L-Second end side, 51-Opening;

[0039] 6-Handle part, 61-Card protrusion;

[0040] 7-Head, 71-Capacitive sensor. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the described embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. It is understood that, without conflict, some technical means of the various embodiments described herein can be substituted for or combined with each other.

[0042] In the description of this application and the claims, the terms "first," "second," etc., are used only to distinguish the described objects and have no sequential or technical meaning. Therefore, objects specified with "first," "second," etc., may explicitly or implicitly include one or more of those objects. Furthermore, the words "one" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one, while "multiple" indicates not less than two.

[0043] Figure 1 The oral humidity tester kit 1000 provided according to an embodiment of this application includes an oral humidity tester 100 and a disposable protective cover 200 for providing hygiene.

[0044] The oral cavity humidity meter 100 is an oral examination instrument capable of detecting the humidity inside the oral cavity. It has a handle 6 for a person, such as a medical professional, to hold, and a head 7 extending from the end of the handle 6 towards the operator. A capacitive sensor 71 is located at the end of the head 7. This capacitive sensor 71 is sensitive to moisture, or humidity, and can thus measure the humidity (water content) inside the oral cavity. Furthermore, since the dielectric properties of water in the oral cavity change according to the amount of water, even if the water in the subject's oral cavity does not directly contact the capacitive sensor 71, the capacitive sensor 71 can determine the water content of the oral cavity by observing changes in the aforementioned dielectric properties. Since such capacitive sensors 71 are well known to those skilled in the art, they will not be described in detail further.

[0045] In use, the sleeve 200 is placed over the oral humidity meter 100 to cover the head 7, which includes the aforementioned capacitive sensor 71. The operator holds the handle 6 of the oral humidity meter 100 and inserts the head 7 into the mouth of a subject, such as a patient with xerostomia (with the handle 6 remaining outside the mouth), and presses the head 7 against the subject's tongue so that the capacitive sensor 71 of the head 7 is close to but does not contact the subject's tongue, thereby measuring the moisture content at the tongue surface. Since the head 7 inserted into the mouth is covered by the disposable sleeve 200, which has undergone hygienic treatment at the factory, the sleeve 200, which meets the set hygiene standards, separates the head 7 of the oral humidity meter 100 from the inner wall of the mouth (such as the tongue surface), thereby ensuring hygiene and safety during the aforementioned examination process.

[0046] Please see Figure 3 and Figure 4 The sheath 200 includes a first protective sheet 1, a first diaphragm 2, a second diaphragm 3, and a second protective sheet 4, which are all flexible structures, stacked sequentially in the thickness direction DR1. The flexibility of the first protective sheet 1 and the second protective sheet 4 is lower than that of the first diaphragm 2 and the second diaphragm 3. That is, the first diaphragm 2 and the second diaphragm 3 are more prone to deformation than the first protective sheet 1 and the second protective sheet 4.

[0047] The first protective sheet 1 is formed into an elongated shape that is longer in the length direction DR2, and has a first side and a second side that are opposite to each other in the thickness direction DR1, with a first adhesive (not shown) tightly bonded to the second side.

[0048] The first diaphragm 2 is also formed into an elongated shape that is longer in the length direction DR2, having a third and a fourth side that are opposite to each other in the thickness direction DR1, with the third side facing the second side of the first protective sheet 1, and the second side of the first protective sheet 1 is detachably bonded to the third side of the first diaphragm 2 via the aforementioned first adhesive. When an operator peels the first protective sheet 1 off the first diaphragm 2 with their fingers, the first adhesive separates from the first diaphragm 2 while still adhering to the second side.

[0049] The second diaphragm 3 is also formed into an elongated shape in the length direction DR2, having a fifth and a sixth surface opposite to each other in the thickness direction DR1, wherein the fifth surface faces the fourth surface of the first diaphragm 2. Furthermore, the first diaphragm 2 and the second diaphragm 3 are joined together at a first end 5R in the length direction DR2 and at two end sides in the width direction DR3, thereby forming a sleeve-like structure capable of opening 51 at a second end 5L in the length direction DR2, wherein the width direction DR3 is perpendicular to both the length direction DR2 and the thickness direction DR1. It should be understood that the first end 5R and the second end 5L are two end sides opposite to each other in the length direction DR2.

[0050] The second protective sheet 4 is also formed into an elongated shape in the length direction DR2, having a sixth and a seventh surface opposite to each other in the thickness direction DR1, with the sixth surface facing the fifth surface of the second diaphragm 3. Furthermore, a second adhesive is tightly bonded to the sixth surface, and the sixth surface of the second protective sheet 4 is detachably bonded to the fifth surface of the second diaphragm 3 via the second adhesive. When an operator peels the second protective sheet 4 off the second diaphragm 3 using their fingers, the second adhesive separates from the second diaphragm 3 while still adhering to the second surface.

[0051] When viewed along the thickness direction DR1, the first protective sheet 1 completely covers the first membrane 2, and the second protective sheet 4 completely covers the second membrane 3. Thus, in a non-use state, such as in a storage state, the first protective sheet 1 and the second protective sheet 4 isolate the outer surfaces (third and sixth surfaces) of the first membrane 2 and the second membrane 3 that will come into contact with the patient's mouth from the external environment, thereby maintaining the hygiene of the third and sixth surfaces.

[0052] In this embodiment, the first protective sheet 1, the first diaphragm 2, the second diaphragm 3, and the second protective sheet 4 are all formed of resin. By designing the thickness of the first protective sheet 1 and the second protective sheet 4 to be greater than the thickness of the first diaphragm 2 and the second diaphragm 3, the flexibility of the first protective sheet 1 and the second protective sheet 4 is lower than that of the first diaphragm 2 and the second diaphragm 3. Based on this, the first protective sheet 1 and the second protective sheet 4 have greater deformation stiffness and can maintain their shape well in their natural state. Figure 3 and Figure 4 The sheath 200 is in a flat state as shown. As a result, wrinkling and deformation of the sheath 200 in the non-use state can be suppressed, and the storage and transportation of the sheath 200 in the non-use state are made easier.

[0053] The second protective sheet 4 and the second diaphragm 3 are both formed into a generally rectangular shape, and the second protective sheet 4 and the second diaphragm 3 have the same dimensions along the width direction DR3, but the dimensions of the second protective sheet 4 along the length direction DR2 are larger than those of the second diaphragm 3 along the length direction DR2. Unlike the second protective sheet 4 and the second diaphragm 3, the first protective sheet 1 and the first diaphragm 2 each have a generally rectangular main body portion and a strip-shaped portion extending from one side of the main body portion, wherein the strip-shaped portion of the first diaphragm 2 constitutes the first pull strap 21, and the strip-shaped portion of the first protective sheet 1 constitutes the second pull strap 11. Specifically, the first protective sheet 1 has the aforementioned first pull strap 21 extending in the length direction DR2 beyond the second end side 5L (i.e., the opening 51 position), the first protective sheet 1 has the aforementioned second pull strap 11 covering the first pull strap 21 and being separably bonded to the first pull strap 21 by the aforementioned first adhesive, and the first pull strap 21 has a first sleeve hole 22 penetrating in the thickness direction DR1, and the second pull strap 11 has a second sleeve hole 12 overlapping the first sleeve hole 22.

[0054] Furthermore, the first protective sheet 1 and the second protective sheet 4 each have a first protruding section 13 and a second protruding section 42 extending in the length direction DR2 beyond the first end side 5R, and the first protruding section 13 and the second protruding section 42 are detachably bonded together by the aforementioned second adhesive. To facilitate the reader's understanding of this technology, Figure 4 The thickness of the second adhesive between the first protruding section 13 and the second protruding section 42 is exaggerated. Furthermore, for convenience, Figure 4 The first adhesive between the first diaphragm 2 and the first protective sheet 1, and the second adhesive 41 between the second diaphragm 3 and the second protective sheet 4 are omitted.

[0055] Please review Figure 1The handle 6 of the oral humidity tester 100 is provided with a locking protrusion 61. In use, the operator can grasp the extended ends of the first pull strap 21 and the second pull strap 11 with their fingers and pull upwards. Correspondingly, the main bodies of the first diaphragm 2 and the first protective sheet 1, driven by the first pull strap 21 and the second pull strap 11, move upwards away from the second diaphragm 3 and the second protective sheet 4 at the second end side 5L, thereby forming an opening 51. Then, the head 7 of the oral humidity tester 100 is inserted through this opening 51 into the space between the first diaphragm 2 and the second diaphragm 3. After the head 7 of the oral humidity tester 100 is inserted into place and abuts against the bottom wall of the sleeve 5 formed by the first diaphragm 2 and the second diaphragm 3, the first hole 22 of the first pull strap 21 and the second hole 12 of the second pull strap 11 are fitted onto the locking protrusion 61 of the handle portion 6 of the oral humidity tester 100. This ensures that the sleeve 200 (the first diaphragm 2 and the second diaphragm 3) is stably held on the oral humidity tester 100, preventing the sleeve 200 from detaching from the oral humidity tester 100 during the test. Afterwards, the first protective sheet 1 and the second protective sheet 4 are peeled off from the sleeve 5, allowing only the first diaphragm 2 and the second diaphragm 3 to enter the subject's oral cavity.

[0056] Because the flexible first pull strap 21 is layered with a relatively rigid second pull strap 11, the second pull strap 11 can keep the first pull strap 21 in a straight position when not in use, preventing the first pull strap 21 from rolling up, folding, or even breaking. On the other hand, during the installation of the sheath 200, the operator can easily lift the first pull strap 21 to open the opening 51 of the sleeve 5. Furthermore, during the installation of the sheath 200, the first protective plate 1 can keep the first sleeve hole 22 in a fixed shape, so that the first sleeve hole 22 of the first pull strap 21 can be easily fitted onto the latch 61 of the oral humidity tester 100.

[0057] Please see Figure 2It is understandable that, due to the thickness of the head 7 of the oral humidity tester 100 and the low flexibility of the first protective sheet 1 and the second protective sheet 4 (i.e., high deformation rigidity), when the head 7 of the oral humidity tester 100 is inserted into place and abuts against the bottom wall of the first end side 5R of the sleeve-like body 5 formed by the first diaphragm 2 and the second diaphragm 3, the first protruding section 13 of the first protective sheet 1 and the second protruding section 42 of the second protective sheet 4, which were originally bonded together, are separated by the head 7 of the oral humidity tester 100. In this way, the operator can grasp the separated first protruding section 13 and the second protruding section 42 and move them relatively away from each other in the thickness direction DR1, thereby peeling the first protective sheet 1 and the second protective sheet 4 from the first end side 5R (non-opening 51 side) to the second end (opening 51 side) of the first diaphragm 2 and the second diaphragm 3, respectively. Furthermore, compared to the case where the first protective sheet 1 and the second protective sheet 4 peel off from the second end side 5L to the first end side 5R of the sheath 5, in the embodiment of this application, the first protective sheet 1 and the second protective sheet 4 peel off from the non-opening 51 side to the opening 51 side of the sheath 5, which can effectively prevent the opening 51 part of the sheath 5 from being damaged by the pulling force, and also helps to suppress the first hole from detaching from the card protrusion 61.

[0058] In use, there is a small probability that the following unexpected event may occur: when the head 7 of the oral humidity meter 100 is inserted into place and abuts against the bottom wall of the sleeve-like body 5 formed by the first membrane 2 and the second membrane 3, the first protruding section 13 and the second protruding section 42 may not completely separate and remain partially adhered. In view of this, please refer to [further details to be added]. Figures 2 to 4 In this embodiment, the dimension of the first protruding section 13 along the length direction DR2 is designed to be smaller than the dimension of the second protruding section 42 along the length direction DR2. With this design, even if the aforementioned accident occurs, the operator can still peel the second protective sheet 4 from the second diaphragm 3 by grasping the portion of the second protruding section 42 that extends beyond the first protruding section 13, and then peel the first protective sheet 1 from the first diaphragm 2 by grasping the first protruding section 13. In other embodiments, the dimension of the first protruding section 13 along the length direction DR2 may also be designed to be larger than the dimension of the second protruding section 42 along the length direction DR2.

[0059] It is also understandable that, since the first protective sheet 1 and the second protective sheet 4 are bonded to each other at the first protruding section 13 and the second protruding section 42, the entire sheath 200 can be stably maintained as such when not in use. Figure 4 The flat configuration shown has the first diaphragm 2 and the second diaphragm 3 stably sandwiched between the first protective sheet 1 and the second protective sheet 4, thus preventing the accidental opening or wrinkling of the suit when it is not in use.

[0060] In this embodiment, the first diaphragm 2 is detachably bonded to the first protective sheet 1 over its entire surface area; that is, the entire third surface of the first diaphragm 2 is bonded to the second surface of the first protective sheet 1. Based on this design, in Figure 4 In the non-use state shown, the first diaphragm 2 is not prone to unwanted wrinkles because it is held in place by the relatively rigid (lower flexibility) first protective sheet 1 over its entire area. Also, since the second diaphragm 3 is held in place by the first protective sheet 1 on both sides of its width, the second diaphragm 3 is not prone to unwanted wrinkles.

[0061] Furthermore, the adhesive force between the first diaphragm 2 and the first protective sheet 1 is less than the adhesive force between the first protruding section 13 and the second protruding section 42; that is, the adhesive force between the first diaphragm 2 and the first protective sheet 1 is relatively small. Therefore, during the insertion of the head 7 of the oral hygrometer 100 into the space between the first diaphragm 2 and the second diaphragm 3, the adhesive position between the first diaphragm 2 and the first protective sheet 1 can easily separate partially according to the cross-sectional shape of the head 7 (e.g., circular) (e.g., separation occurs on both sides of the width of the first diaphragm 2), thereby improving the smoothness of insertion of the head 7 of the oral hygrometer 100 into the sheath 200. Additionally, the aforementioned difference in adhesive force can be achieved by configuring the thickness of the first adhesive to be different at different locations.

[0062] Please return Figure 3 The aforementioned second adhesive, disposed on the seventh surface of the second protective sheet 4, forms an adhesive area 4P. This adhesive area 4P is separably bonded to the sixth surface of the second diaphragm 3, and the adhesive area 4P extends at least along the entire length direction DR2 of the second diaphragm 3. The size of the adhesive area 4P in the width direction DR3 gradually decreases from the first end side 5R to the second end side 5L. With this design, on the one hand, the flatness of the second diaphragm 3 can be further ensured in the non-use state, preventing wrinkles from forming on the second diaphragm 3. On the other hand, when the operator pulls up the first pull strap 21 and the second pull strap 11, the second diaphragm 3 will move upward on both sides of the width of the second end side 5L and leave the second protective sheet 4. The second diaphragm 3 will be temporarily held on the second protective sheet 4 at the middle of the width of the second end side 5L, thereby forming an opening 51 that is easy for the head 7 of the oral cavity moisture meter 100 to insert.

[0063] Next, please see Figures 5 to 7 , Figures 5 to 7A sheath 200 according to another embodiment of this application is shown. Unlike the above, in this embodiment, the second sheath 4 has a third protruding section 43 extending in the length direction DR2 beyond the second end side 5L. The dimension of the third protruding section 43 in the length direction DR2 is smaller than the dimension of the second pull strap 11 in the length direction DR2, and the dimension of the third protruding section 43 in the width direction DR3 is larger than the dimension of the second pull strap 11 in the width direction DR3. With this design, the operator can hold the third protruding section 43 of the second sheath 4 with one hand and the first pull strap 21 and the second pull strap 11 with the other hand, thereby more easily obtaining the opening 51 at the second end side 5L.

[0064] exist Figures 5 to 7 In the illustrated embodiment, the third protruding section 43 of the second protective sheet 4 is not connected to the first pull strap 21 of the first diaphragm 2. Therefore, in the non-use state, there is a risk that the second protective sheet 4 may unexpectedly peel off from the second diaphragm 3, with the third protruding section 43 as the peeling starting point. To mitigate this risk, in Figure 8 and Figure 9 In another embodiment shown, the adhesive area 4P of the seventh surface 4U extends to the third extension 43 so that the first pull strip 21 of the third extension 43 is separably adhesive.

Claims

1. A protective sleeve for covering the head of an oral humidity tester to separate the head from the inner wall of the patient's oral cavity, characterized in that, The sheath includes a first protective sheet, a first diaphragm, a second diaphragm, and a second protective sheet, which are all flexible structures and are stacked sequentially in the thickness direction. The flexibility of the first protective sheet and the second protective sheet is lower than that of the first diaphragm and the second diaphragm. The first diaphragm and the second diaphragm are joined to each other at a first end in the length direction and at two ends in the width direction, thereby forming a sheath-like body that can open at a second end in the length direction. The width direction is perpendicular to the length direction and the thickness direction, respectively. The first protective sheet and the second protective sheet each have a first protruding section and a second protruding section extending beyond the first end side in the length direction, and the first protruding section and the second protruding section are separably bonded together; The first diaphragm is detachably bonded to the first protective sheet over its entire surface area, and the adhesive force between the first diaphragm and the first protective sheet is less than the adhesive force between the first protruding section and the second protruding section. The second protective sheet has a seventh surface facing the second diaphragm, the seventh surface having an adhesive area that is separably bonded to the second diaphragm, the adhesive area extending at least along the entire length of the second diaphragm in the length direction, and the dimension of the adhesive area in the width direction gradually decreasing from the first end side to the second end side; The oral humidity tester has a cam, and the first diaphragm has a first pull strap extending in the length direction beyond the second end side, the first pull strap having a first sleeve hole through in the thickness direction for fitting onto the cam. The first protective strip has a second pull strap that covers the first pull strap and is detachably bonded to the first pull strap, the second pull strap having a second sleeve hole that overlaps with the first sleeve hole; The second protective strip has a third protruding section extending beyond the second end side in the length direction, the dimension of the third protruding section in the length direction being smaller than the dimension of the second pull strap in the length direction, and the dimension of the third protruding section in the width direction being larger than the dimension of the second pull strap in the width direction.

2. The sheath according to claim 1, characterized in that, The dimension of the first protruding segment along the length direction is smaller than the dimension of the second protruding segment along the length direction.

3. The sheath according to claim 1, characterized in that, The first protective sheet is detachably bonded to the first diaphragm, and the second protective sheet is detachably bonded to the second diaphragm; When viewed along the thickness direction, the first protective sheet completely covers the first membrane, and the second protective sheet completely covers the second membrane.

4. The sheath according to claim 1, characterized in that, The third protruding section is detachably bonded to the first pull strip.

5. An oral cavity humidity testing kit, characterized in that, include: The sheath as described in any one of claims 1 to 4, and The oral humidity tester has a capacitive sensor in its head for detecting the water content in the subject's oral cavity.

Images