Transparent window structure and oximetry probe

Abstract

The application provides a transparent window structure and a blood oxygen saturation probe, wherein the transparent window structure is arranged on a support which is arranged on a to-be-measured part, and the transparent window structure comprises a transparent window body, a sensor mounting position and a fixing part; the transparent window body has a window bottom surface facing a containing space and a window top surface away from the containing space; the sensor mounting position is arranged on the top surface of the transparent window body and is used for arranging an external sensor element; the transparent window body is provided with an upper compression surface and a lower compression surface, and the area of the upper compression surface is larger than that of the lower compression surface; or / and the fixing part is arranged on the transparent window body. The problem that the high-temperature silicone material is easy to penetrate into the bottom of the transparent window and causes overflow is solved.

Description

Technical Field

[0001] This application relates to the field of blood oxygen saturation detection equipment technology, and in particular to a transparent window structure and a blood oxygen saturation probe. Background Technology

[0002] A pulse oximeter (POS) is a sensor used to detect blood oxygen saturation and is widely used in emergency care, disease diagnosis, and health monitoring. Existing POS probes mainly consist of a support and a sensor element. The sensor element is housed within the support, which is used to attach, clamp, or adhere to the subject's fingers, toes, forehead, or other measurement sites. The sensor element includes a light-emitting element (LED) and a photodiode (PD). The LED emits light of a specific wavelength, typically red or infrared, while the PD receives the light emitted by the LED as it passes through the subject's finger. The POS meter analyzes the light signal received by the PD to determine the subject's blood oxygen saturation. To protect the sensor element from moisture and salt from the fingers, prevent foreign objects from entering, and allow light emitted from the LED to enter the PD, a transparent window is placed between the sensor element and the finger.

[0003] For example, patent application number 201310428452.5 discloses a structure for a blood oxygen probe, such as... Figure 1 As shown, the pulse oximeter includes an inner base (i.e., a support 200), within which a accommodating space 210 is formed for accommodating the subject's finger, and the support 200 is provided with two transparent window structures 100 positioned opposite each other, referred to as the upper transparent window and the lower transparent window, respectively.

[0004] Specifically, each transparent window structure 100 includes a bottom surface 111 facing the accommodating space 210, a top surface 121 facing away from the accommodating space 210, and a side wall 140; the top surface 121 is provided with a sensor mounting position 120 for mounting sensing elements; the bottom surface 111 includes a first bottom surface 111a and a second bottom surface 112b, the first bottom surface 111a is flush with the inner wall of the accommodating space 210, and the second bottom surface 111b is flush with the inner wall of the accommodating space 210. The inner wall of 0 forms a certain interval, thereby forming a stepped structure; the top surface 121 of the window includes a first top surface 112a and a second top surface 112b. The first top surface 112a is the bottom surface of the sensor mounting position 120, and the second top surface 112b is the upper surface of the side wall 140. The first top surface 112a is lower than the second top surface 112b. Thus, the sensor mounting position 120 is a recessed structure located on the side of the transparent window structure 100 away from the accommodating space 210.

[0005] The light emitting element and the light receiving element are respectively arranged in the sensor mounting position 120 of the two transparent window structures 100. When blood oxygen detection is performed, in the transparent window structure 100 where the light emitting element is arranged, the light emitted by the light emitting element arranged in the sensor mounting position 120 passes through the first top surface 112a and the first bottom surface 111a in sequence and then reaches the to-be-detected part accommodated in the accommodating space 210, and in the transparent window structure 100 where the light receiving element is arranged, the light emitted by the light emitting element passes through the to-be-detected part and then is received by the light receiving element arranged in the sensor mounting position 120 after passing through the first bottom surface 111a and the first top surface 112a in sequence.

[0006] The blood oxygen probe is made of silicone and is manufactured by injection molding or hot pressing, as shown in FIG. 6. Figure 2 As shown in FIG. 6, the transparent window structure 100 is first manufactured, the pre-manufactured transparent window structure 100 is arranged in the mold 300, high-temperature silicone material is injected into the mold 300, and the structure of the blood oxygen probe is obtained after cooling.

[0007] Specifically, the mold 300 includes an upper mold 310, an intermediate core-pulling 320, and a lower mold 330. The inner side of the upper mold 310 is provided with an upper pressing structure 311, and the inner side of the lower mold 330 is provided with a lower pressing structure 331. During molding, the first bottom surface 111a of the two transparent window structures 100 respectively abuts against the upper surface and the lower surface of the intermediate core-pulling 320, the first top surface 112a of the upper transparent window structure 100 abuts against the upper pressing structure 311, and the first top surface 112a of the lower transparent window structure 100 abuts against the lower pressing structure 331. Thus, the upper mold 310, the intermediate core-pulling 320, and the lower mold 330 and the two transparent window structures 100 together form a filler cavity 340, the shape of which is the shape of the support 200. High-temperature liquid silicone is injected into the filler cavity 340, and the structure of the blood oxygen probe is obtained after the silicone cools down.

[0008] The upper transparent window structure 100 is taken as an example for description. In order to fix the transparent window structure 100 during molding to prevent it from moving, the upper pressing structure 311 exerts pressure on the first top surface 112a of the upper transparent window structure 100, and the pressure exerted by the upper pressing structure 311 is transmitted to the first bottom surface 111a, which exerts pressure on the intermediate core-pulling 320. Thus, the upper pressing structure 311 and the intermediate core-pulling 320 clamp the transparent window structure 100 to prevent it from deviating, and the first top surface 112a of the transparent window structure 100 is referred to as an upper pressure receiving surface 160, and the first bottom surface 111a of the transparent window structure 100 is referred to as a lower pressure receiving surface 170. The force acting on the lower transparent window structure 100 is basically the same as that acting on the upper transparent window structure 100, and thus will not be described herein.

[0009] In other prior art, as shown in Figure 3 The first bottom surface 111a of the transparent window structure 100 is flush with the second bottom surface 111b, so that the first bottom surface 111a and the second bottom surface 111b merge to form a same surface, i.e. the window bottom surface 111 is no longer divided into the first bottom surface 111a and the second bottom surface 111b; thus, in the molding process, the entire window bottom surface 111 abuts against the middle core-pulling 320, and the lower compression surface 170 includes the entire window bottom surface 111.

[0010] In other prior art, as shown in Figure 4 The upper compression structure 311 and the lower compression structure 331 not only abut against the first top surface 112a, but also abut against part of the second top surface 112b, so that the upper compression surface 160 includes the first top surface 112a and part of the second top surface 112b.

[0011] However, the blood oxygen probe structure of the above-mentioned prior art is prone to overflow of the high-temperature silicone material into the bottom of the transparent window (i.e. the first bottom surface 111a or the window bottom surface 111) during molding, which causes irregular occlusion of the transparent window structure 100 and affects the light transmission, resulting in unqualified products. As shown in Figure 5 (a) is an unqualified product with overflow of the high-temperature silicone material during molding, Figure 5 (b) is a qualified product without overflow of the high-temperature silicone material, and as can be seen by comparison, Figure 5 the upper left corner of the light-transmitting window in (a) is occluded by the overflow of the high-temperature silicone material.

[0012] Therefore, the prior art still needs to be improved and developed. SUMMARY

[0013] In view of the shortcomings of the prior art, the purpose of the present application is to provide a transparent window structure and a blood oxygen saturation probe, which solves the problem that the high-temperature silicone material is prone to overflow into the bottom of the transparent window.

[0014] In one aspect, the present application provides a transparent window structure for being arranged on a support, the support being arranged on a to-be-measured part, characterized in that the transparent window structure comprises:

[0015] a transparent window body, the transparent window body having a window bottom surface facing the to-be-measured part, a window top surface facing away from the to-be-measured part, and a side wall;

[0016] The window top surface includes a first top surface and a second top surface; the portion of the window top surface surrounded by the inner surface of the side wall is the first top surface; the upper surface of the side wall is the second top surface; the height from the first top surface to the second top surface is ≥0;

[0017] A sensor mounting position is arranged on the window top surface of the transparent window body for arranging a sensor element.

[0018] A fixing portion is arranged on the transparent window body for fixing the side wall to prevent it from moving when being molded by cooperating with a mold.

[0019] Optionally, the height from the first top surface to the second top surface is greater than 0.

[0020] The transparent window body is provided with a side wall inner surface which, together with the first top surface, encloses the sensor mounting position.

[0021] Optionally, the fixing portion comprises a fixing hole for fixing the side wall by embedding a positioning structure on the mold.

[0022] Optionally, the fixing hole is provided with a plurality of fixing holes.

[0023] Optionally, the plurality of fixing holes are symmetrically distributed around the center of the sensor mounting position.

[0024] Optionally, the fixing portion further comprises a bearing column arranged on the window top surface, and the fixing hole is arranged on the bearing column.

[0025] Optionally, the fixing portion comprises a fixing boss for fixing the side wall of the sensor mounting position by sleeving a positioning structure on the mold.

[0026] Optionally, the fixing portion comprises a bearing column arranged on the window top surface and connected with the side wall, and a fixing boss arranged on the bearing column for fixing the side wall by sleeving a positioning structure on the mold.

[0027] In a second aspect, the present application provides a transparent window structure for being arranged on a support for connecting a to-be-measured part, wherein the transparent window structure comprises:

[0028] A transparent window body has a window bottom surface facing the to-be-measured part and a window top surface away from the to-be-measured part;

[0029] A sensor mounting position is arranged on the window top surface for arranging a sensor element;

[0030] The window top surface is provided with an upper pressure receiving surface for being in contact with an upper pressing structure of a mold and bearing the pressure applied by the upper pressing structure, or for being in contact with a lower pressing structure of a mold and bearing the pressure applied by the lower pressing structure when being molded.

[0031] The bottom surface of the window body is provided with a lower pressure receiving surface, which is used to abut against the middle core-pulling of a mold and bear the pressure applied by the upper pressure applying structure or the lower pressure applying structure during molding;

[0032] The area of the upper pressure receiving surface is greater than or equal to the area of the lower pressure receiving surface.

[0033] Optionally, the upper pressure receiving surface comprises the first top surface, and the first top surface is the bottom surface of the sensor mounting position.

[0034] Optionally, the bottom surface of the window body comprises a first bottom surface, and the first bottom surface is the lower pressure receiving surface.

[0035] The area of the first bottom surface is less than or equal to the area of the first top surface, and the orthographic projection of the first bottom surface on the first top surface is located within the area of the first top surface.

[0036] Optionally, the bottom surface of the window body further comprises a second bottom surface.

[0037] The second bottom surface is arranged outside the first bottom surface.

[0038] The second bottom surface has a height difference with the first bottom surface, and the first bottom surface is convex with respect to the second bottom surface.

[0039] Optionally, the center point of the orthographic projection of the first bottom surface on the plane of the first top surface coincides with the center point of the first top surface.

[0040] Optionally, the transparent window body further comprises a side wall on the side away from the to-be-measured part, the upper surface of the side wall is a second top surface, and the upper pressure receiving surface further comprises at least a part of the second top surface.

[0041] In a third aspect, the present application further provides a blood oxygen saturation probe, which comprises:

[0042] A support member for connecting the to-be-measured part;

[0043] A sensor element; and

[0044] The transparent window structure as described above;

[0045] At least one transparent window structure is provided, and the at least one transparent window structure is arranged on the support member respectively, and the sensor element is arranged in the transparent window structure.

[0046] Optionally, the support member has a containing space for containing the to-be-measured part.

[0047] Optionally, the inner wall of the accommodating space is a curved surface, and the bottom surface of the window body is a curved surface that is continuous with the inner wall of the accommodating space.

[0048] Optionally, the support member comprises a first clamping portion, a second clamping portion, and a connecting portion connecting the first clamping portion and the second clamping portion, and the first clamping portion, the second clamping portion, and the connecting portion enclose the accommodating space.

[0049] The transparent window structure is provided in two, and the two transparent window structures are respectively arranged on the first clamping portion and the second clamping portion.

[0050] The sensor element comprises a light-emitting element and a light-receiving element, and is arranged at a sensor mounting position of the two transparent window structures.

[0051] Optionally, the support member further comprises a wire outlet and a wire channel, the wire outlet is arranged at an outer end of the first clamping portion, the wire channel is arranged in the interior of the first clamping portion and the interior of the second clamping portion and is used for threading a wire connecting the two sensor elements, and the wire channel is used for connecting the sensor mounting position and the wire outlet and is used for leading out the wire connecting the sensor elements.

[0052] Optionally, the support member comprises a sticking accessory, and the sticking accessory is used for being attached to a to-be-measured part.

[0053] The transparent window structure is arranged in the sticking accessory and is located at one side of the to-be-measured part, and the sensor element is arranged in the transparent window structure.

[0054] Beneficial effects: The transparent window structure and blood oxygen saturation probe of this application can be fixed by setting a fixing part on the transparent window body. During molding, a matching positioning structure is also provided on the upper pressure structure of the molding mold. During the molding process, the positioning structure of the mold cooperates with the fixing part to fix the transparent window body, thereby preventing relative displacement between the bottom surface of the window and the middle core under the impact of high pressure molding material. This avoids molding material entering the bottom surface of the window due to relative displacement between the bottom surface of the window and the middle core. In addition, the fixing part also fixes the side wall of the sensor mounting position, which can prevent molding material from seeping into the sensor element mounting position. Alternatively, / and with the transparent window structure, by making the upper pressure-bearing surface of the transparent window body larger than the lower pressure-bearing surface, during the molding process, when the mold's clamping structure applies pressure to the transparent window body, with the bottom surface of the window as the lower pressure-bearing surface, the pressure transmitted through the upper pressure-bearing surface is greater and more evenly distributed on the bottom surface of the window body. This allows the bottom surface of the transparent window body to fully adhere to the central core-pulling surface of the mold, effectively preventing molding material from seeping into the surface of the bottom surface of the transparent window body and causing irregular obstructing rubber after molding. Furthermore, reducing the area of ​​the light-transmitting region on the bottom surface of the window body can also reduce stray light interference and improve the accuracy of blood oxygen detection. Therefore, all of the above solutions can effectively prevent molding material from entering the bottom surface of the window body and forming obstructing rubber. Attached Figure Description

[0055] Figure 1 This is a schematic diagram of the clamping structure of the blood oxygen saturation probe in the first prior art.

[0056] Figure 2 A cross-sectional view of the transparent window structure of the blood oxygen saturation probe in the first prior art during molding;

[0057] Figure 3 A cross-sectional view of the transparent window structure of the blood oxygen saturation probe in the second prior art during molding;

[0058] Figure 4 A cross-sectional view of the transparent window structure of the blood oxygen saturation probe in the third prior art during molding;

[0059] Figure 5 This is a rendering of the actual effect of the transparent window structure of the existing technology, in which... Figure 5 (a) shows a product with excess adhesive. Figure 5 (b) shows a product without excess adhesive.

[0060] Figure 6 This is a schematic diagram of the transparent window structure according to Embodiment 1 of this application;

[0061] Figure 7A cross-sectional view of the transparent window structure of Embodiment One of the present application;

[0062] Figure 8 A cross-sectional view of the transparent window structure of Embodiment One of the present application during molding;

[0063] Figure 9 A structural schematic view of the transparent window structure of Embodiment Two of the present application;

[0064] Figure 10 A structural schematic view of the transparent window structure of Embodiment Three of the present application;

[0065] Figure 11 A cross-sectional view of the transparent window structure of Embodiment Three of the present application;

[0066] Figure 12 A cross-sectional view of the transparent window structure of Embodiment Three of the present application during molding;

[0067] Figure 13 A side view of the transparent window structure of Embodiment Four of the present application;

[0068] Figure 14 A cross-sectional view of the transparent window structure of Embodiment Four of the present application;

[0069] Figure 15 A cross-sectional view of the transparent window structure of Embodiment Four of the present application during molding;

[0070] Figure 16 A structural schematic view of the transparent window structure of Embodiment Five of the present application;

[0071] Figure 17 A cross-sectional view of the transparent window structure of Embodiment Five of the present application during molding;

[0072] Figure 18 A structural schematic view of the transparent window structure of Embodiment Six of the present application;

[0073] Figure 19 A cross-sectional view of the transparent window structure of Embodiment Six of the present application;

[0074] Figure 20 A cross-sectional view of the transparent window structure of Embodiment Six of the present application during molding;

[0075] Figure 21 A cross-sectional view of the transparent window structure of Embodiment Six of the present application during molding;

[0076] Figure 22 A structural schematic view of the transparent window structure of Embodiment Seven of the present application;

[0077] Figure 23Sectional view of another structure of the transparent window structure of Embodiment Seven of the present application;

[0078] Figure 24 Sectional view of another structure of the transparent window structure of Embodiment Seven of the present application during molding;

[0079] Figure 25 Front view of the blood oxygen saturation probe of Embodiment Eight of the present application;

[0080] Figure 26 Sectional view of the blood oxygen saturation probe of Embodiment Eight of the present application;

[0081] Figure 27 Sectional view of the blood oxygen saturation probe of Embodiment Nine of the present application.

[0082] In the figure: 100, transparent window structure; 110, transparent window body; 111, window bottom surface; 111a, first bottom surface; 111b, second bottom surface; 112, window top surface; 112a, first top surface; 112b, second top surface; 120, sensor mounting site; 130, fixed part; 131, bearing column; 132, fixed hole; 133, hole bottom surface; 135, fixed boss; 140, side wall; 141, side wall inner surface; 150, notch; 160, upper compression surface; 170, lower compression surface; 200, support; 210, containing space; 220, first clamping part; 221, first fixed groove; 230, second clamping part; 231, second fixed groove; 240, connecting part; 250, mounting opening; 260, wire outlet; 270, wire channel; 280, adhesive attachment; 300, mold; 310, upper mold; 311, upper compression structure; 312, upper positioning structure; 320, intermediate core-pulling; 330, lower mold; 331, lower compression structure; 332, lower positioning structure; 340, filler cavity. DETAILED DESCRIPTION

[0083] In order to make the purpose, technical solutions and advantages of the present application more clear and explicit, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0084] According to the analysis and research of the inventor, in the prior art, the transparent window structure 100 is not effectively fixed during the molding process of the blood oxygen saturation probe, which causes the high-temperature silicone material to easily penetrate into the bottom of the transparent window. The specific reasons are as follows:

[0085] In one aspect, the side wall 140 of the transparent window structure 100 is deformed under the impact of the high-temperature and high-pressure molding material, thereby causing the entire transparent window structure 100 to be deformed and displaced, and causing the molding material to penetrate between the first bottom surface 111a and the intermediate core 320.

[0086] As shown in Figure 1 , Figure 2 , since the transparent window structure 100 is made of a flexible material and is easily deformed under impact, the inner side surface of the side wall 140 is only attached to the outer side surface of the upper positioning structure 311, and there is no stable fixed relationship between the contact surfaces of the two. During molding, when the high-pressure and high-viscosity silicone enters the filler cavity 340, the impact force will be directly applied to the side wall 140 of the transparent window structure 100, which is extremely easy to cause the side wall 140 to be deformed and moved, thereby causing the entire transparent window structure 100 to be deformed and moved, and causing the molded silicone material to enter the edge of the contact surface between the first bottom surface 111a and the intermediate core 320, thereby causing irregular obstruction to the transparent window structure 100, resulting in product disqualification. In order to make the inner contour of the support 200 match the shape of the finger, when the accommodation space 210 is set as an arc surface matching the shape of the finger, the first bottom surface 111a is also a corresponding arc surface. The shape of the arc surface makes it more difficult for the first bottom surface 111a to closely cooperate with the surface of the intermediate core 320, and it is more likely to cause the first bottom surface 111a to overflow and cause the edge to be irregular, which not only affects the passage of light, but also causes the silicone and the transparent window to be not firmly bonded and to be delaminated. In addition, since the side wall 140 of the transparent window structure 100 cannot be closely attached to the corresponding upper pressure applying structure 311, the molding material is also easy to penetrate into the sensor mounting site 120 during the molding process, thereby causing the sensor mounting site 120 to be obstructed.

[0087] On the other hand, since the first bottom surface 111a is larger than the first top surface 112a, the pressure applied by the upper pressure applying structure 311a to the first top surface 112a is difficult to effectively transmit to the edge of the first bottom surface 111a, and the edge of the first bottom surface 111a cannot be closely attached to the intermediate core 320, and the molding material is easy to penetrate into the edge of the first bottom surface 111a.

[0088] As shown in Figure 1 , Figure 2As shown, the mold 300 specifically comprises an upper mold 310, an intermediate core-pulling 320 and a lower mold 330, and the inner sides of the upper mold 310 and the lower mold 330 are respectively provided with an upper pressing structure 311 and a lower pressing structure 331; in the upper transparent window structure 100, the first bottom surface 111a abuts against the upper surface of the intermediate core-pulling 320, and the first top surface 112a abuts against the corresponding upper pressing structure 311, and the upper pressing structure 311 and the intermediate core-pulling 320 press the transparent window structure 100 tightly. Since the area of the first bottom surface 111a is larger than the area of the first top surface 112a, the pressure applied by the upper pressing structure 311 to the first top surface 112a cannot completely cover and be transmitted to the surface of the entire first bottom surface 111a, and the pressure applied to the first bottom surface 111a of the transparent window structure 100 is uneven, the pressure at the center of the first bottom surface 111a is large and the pressure at the edge is small, which causes the edge part of the first bottom surface 111a of the window body to not be fully attached to the surface of the intermediate core-pulling 320, and the high-temperature silicone fluid is easy to enter the edge part of the first bottom surface 111a during the molding process, thus causing the overflow of the silicone product as shown in Figure 5 (a).

[0089] The above reason analysis is only for the upper transparent window structure 100, and the reasons for the overflow of the lower transparent window structure 100 are the same, which will not be described here.

[0090] Based on the above reasons, in order to make the transparent window structure 100 more stable during the molding process and not to be deformed and moved, the following structure is proposed:

[0091] The embodiment proposes a transparent window structure 100 for being arranged on a support 200 and for mounting a sensor element, and the support 200 is arranged at a to-be-measured part. The blood oxygen measurement method usually adopts two detection modes, which are reflection detection and transmission detection, so the support 200 can adopt two structures: as shown in Figure 27 , for example, the support 200 directly adopts a sticking accessory 280, and the detection is performed by being adhered to the to-be-measured part (such as the forehead), forming a structure form of sticking detection, and the reflection detection can be performed; or as shown in Figure 26 , the support 200 encloses a containing space 210, and the to-be-measured part (such as a finger) is contained in the containing space 210 for detection, forming a structure form of clamping detection, and the transmission detection can be performed.

[0092] For the convenience of structural description, the structure of the support member 200 surrounding the accommodation space 210 is described in this scheme. Specifically, the support member 200 is arranged in the front-rear direction, and the measured part (for example, the finger) is inserted into the accommodation space 210 from the rear to the front. The support member 200 can cover the measured finger in the up-down direction, and the finger placed in the support member 200 is in the left-right direction. The transparent window structure 100 is located above and / or below the finger. The structure in this embodiment is described with the above direction as the reference direction. When the transparent window structure 100 is arranged in the up-down direction of the accommodation space 210 of the support member 200, the transparent window structure 100 arranged above is taken as an example for detailed structural description, and the transparent window structure 100 arranged below is arranged symmetrically above and below. The specific structure can be referred to the transparent window structure 100 arranged above.

[0093] As shown in Figure 6 , Figure 7 , the transparent window structure 100 in this embodiment includes a transparent window body 110 and a sensor mounting position 120. The transparent window body 110 can be transparent silicone, transparent plastic or other light-transmitting materials. The material can be flexible. If the transparent window body 110 is made of flexible material, the transparent window body 110 can deform together with the connected support member 200, which can prevent the transparent window body 110 from falling off.

[0094] The transparent window body 110 has a window bottom surface 111 facing the measured part and a window top surface 112 away from the measured part. The window bottom surface 111 and the window top surface 112 are arranged opposite in the up-down direction. The sensor mounting position 120 is arranged on the window top surface 112 of the transparent window body 110. The transparent window body 110 includes a side wall 140 outside the sensor mounting position 120. The window top surface 112 includes a first top surface 112a and a second top surface 112b. The part surrounded by the inner surface 141 of the side wall 140 is the first top surface 112a. The upper surface of the side wall 140 is the second top surface 112b. The height from the first top surface 112a to the second top surface 112b is ≥0. In the specific structure, the inner cavity bottom surface of the sensor mounting position 120 is the first top surface 112a. The side wall 140 has the second top surface 112b, and the height from the first top surface 112a to the second top surface 112b is ≥0. As shown in Figure 7 , when the height from the first top surface 112a to the second top surface 112b is >0, the sensor mounting position 120 is arranged as a mounting groove. As shown in Figure 9As shown, when the height of the first top surface 112a to the second top surface 112b = 0, the first top surface 112a to the second top surface 112b are flush, the first top surface 112a is directly a certain area range on the entire plane of the window top surface 112, and the sensor element can be abutted on the first top surface 112a and thus mounted on the transparent window body 110 through the sensor mounting position 120. Therefore, when the height = 0, it can be understood that there is no side wall or the four sides of the transparent window body 110 are equivalent to the side wall, and the first top surface 112a and the second top surface 112b are on a flat window top surface 112. The window bottom surface 111 includes a first bottom surface 111a and a second bottom surface 111b; the first bottom surface 111a and the second bottom surface 111b can be different heights, such as Figure 11 and Figure 14 As shown, in the molding process, the first bottom surface 111a is in contact with the intermediate core 320, and the second bottom surface 111b is spaced apart from the intermediate core 320; the first bottom surface 111a and the second bottom surface 111b can also be flush, and the first bottom surface 111a and the second bottom surface 111b are fused to form a same surface, i.e., the window bottom surface 111, as shown Figure 15 As shown, in the molding process, the entire window bottom surface 111 is in contact with the intermediate core 320.

[0095] On the basis of the above structure, the following embodiments are specifically proposed:

[0096] Embodiment One

[0097] As shown in Figure 6 , Figure 7 In this embodiment, the sensor mounting position 120 is formed by setting a mounting groove on the window top surface 112. In the specific structure, the transparent window body 110 is provided with a side wall inner surface 141, and the side wall inner surface 141 and the first top surface 112a enclose the sensor mounting position 120, which is a cavity structure with an upper opening, and the first top surface 112a is the bottom surface of the cavity structure, and the side wall inner surface 141 is the side surface of the cavity structure. The side wall 140 is formed outside the sensor mounting position 120, the upper surface of the side wall 140 is the second top surface 112b, and the inner side surface of the side wall 140 is the above-mentioned side wall inner surface 141. According to the above structure, the height of the first top surface 112a to the second top surface 112b > 0, the sensor mounting position 120 serves as a groove position for mounting the sensor element, thereby facilitating the installation of the sensor element.

[0098] As shown in Figure 6 , Figure 7As shown, in this embodiment, the transparent window structure 100 further includes a fixing part 130, which is disposed on the transparent window body 110 and used to cooperate with the mold 300 to fix the side wall 140 of the transparent window body 110. The fixing part 130 can be configured in various different structures, such as a groove, a hole, or a boss. Because of the fixing part 130 provided on the transparent window body 110, a matching positioning structure 312 is also provided on the molding mold 300 during molding. During the molding process, the positioning structure 312 can cooperate with the fixing part 130 to fix the side wall 140 of the transparent window body 110.

[0099] The fixing part 130 in this embodiment includes a fixing hole 132, which can be disposed on the second top surface 112b of the side wall 140. There can be one or more fixing holes 132. To enhance stability, multiple fixing holes 132 can be provided in this embodiment. Multiple fixing holes 132 are disposed on the second top surface 112b and surround the sensor mounting position 120.

[0100] like Figure 8 As shown, during molding, the upper pressure structure 311 abuts against the first top surface 112a, and the first bottom surface 111a abuts against the intermediate core pull 320. The fixing hole 132 is used to fix the side wall 140 by embedding the positioning structure 312 on the mold 300. By setting the fixing hole 132 to cooperate with the positioning structure 312 on the upper pressure structure 311, when the upper pressure structure 311 is pressed into the sensor mounting position 120, the positioning structure 312 is also pressed into the fixing hole 132. At least the outer wall of the positioning structure 312 abuts against the inner wall of the fixing hole 132 for support. The positioning structure 312 can support the side wall 140, preventing the side wall 140 from being deformed by impact, thereby preventing the entire transparent window structure 100 from deforming and moving due to the deformation of the side wall 140. This prevents the molding material from seeping into the space between the first bottom surface 111a and the intermediate core pull 320 of the mold, causing excess glue.

[0101] Specifically, the positioning structure 312 is columnar, and the fixing hole 132 is a circular hole that matches the positioning structure 312. The outer wall of the positioning structure 312 abuts against the inner wall of the fixing hole 132, applying a lateral constraint force to the side wall 140 to prevent the side wall 140 from shifting laterally. Friction can also be generated between the outer wall of the positioning structure 312 and the inner wall of the fixing hole 132, with the direction of the friction force along the radial direction of the fixing hole 132. This friction force forms a longitudinal constraint force on the side wall 140 to prevent the side wall 140 from shifting longitudinally. Furthermore, the end of the positioning structure 312 can abut against the bottom of the fixing hole 132, thereby also applying a longitudinal constraint force to the side wall 140 to prevent the side wall 140 from shifting longitudinally. Through the cooperation of multiple positioning structures 312 and multiple fixing holes 132, multiple positions on the side wall 140 are fixed, preventing the side wall 140 from rotating or twisting.

[0102] Furthermore, under the action of the fixing part 130, the side wall 140 of the transparent window body 110 can be tightly fitted with the corresponding upper pressure structure 311 or lower pressure structure 331. During the molding process, it can prevent the molding material from seeping into the sensor mounting position 120 and avoid obstructing the sensor mounting position 120.

[0103] Example 2

[0104] like Figure 9 As shown, the difference between this embodiment and Embodiment 1 is that the height from the first top surface 112a to the second top surface 112b is 0. Therefore, the first top surface 112a and the second top surface 112b are merged into a single plane; that is, the top surface 112 of the window is a complete surface. The top surface 112 of the window includes the first top surface 112a and the second top surface 112b surrounding the first top surface 112a. A sensor mounting position 120 for mounting a sensing element is formed on the first top surface 112a, and a fixing hole 132 is provided on the second top surface 112b.

[0105] There can be one or more fixing holes 132. To enhance stability, multiple fixing holes 132 can be provided in this embodiment. The multiple fixing holes 132 are evenly distributed on the edge of the second top surface 112b, for example, respectively provided at the four corners of the second top surface 112b. By providing fixing holes 132 to cooperate with positioning structure 312, when the upper pressure structure 311 presses on the top surface 112 of the window, the positioning structure 312 is also pressed into the fixing hole 132, so that at least the outer wall of the positioning structure 312 abuts against and supports the inner wall of the fixing hole 132. Since the fixing hole 132 is located at the edge of the top surface 112 of the window, the positioning structure can support the edge of the transparent window body 110, avoiding deformation of the edge of the transparent window body 110 due to impact.

[0106] Example 3

[0107] As Figure 10 , Figure 11 , Figure 12 shown, on the basis of example one, the fixed part 130 further comprises: a plurality of bearing columns 131, the bearing columns 131 are arranged on the window top surface 112, the fixed holes 132 are arranged on the bearing columns 131, and the plurality of bearing columns 131 and the plurality of fixed holes 132 are arranged one by one. In the specific structure, the bearing column 131 is located in the sensor mounting position 120 and is connected with the first top surface 112a and the inner surface of the side wall 141, thereby occupying a certain space of the sensor mounting position 120, the bearing column 131 provides an opening position for the fixed hole 132, so that a larger fixed hole 132 can be arranged, the larger fixed hole 132 can increase the contact area with the positioning structure 312, thereby improving the stability of the fixing, and at the same time, the structural strength of the side wall 140 is not affected. The positioning structure 312 on the upper pressing structure 311 can be a positioning pin, which is matched with the fixed hole 132. The bearing column 131 is arranged at four corners of the sensor mounting position 120, so that each side has two upper positioning pins to fix the position of the side wall 140, and the four corners are fixed by cooperating with the fixed hole 132 and the positioning structure 312, thereby being more stable. The opening direction of the fixed hole 132 is consistent with the groove opening direction of the sensor mounting position 120, so as to facilitate the insertion and extraction of the positioning pin, and the fixed hole 132 can be a circular hole, a slot hole or other polygonal hole. The bearing column 131 can also be arranged on the outside of the side wall 140 and connected with the second top surface 112b and the outer surface of the side wall, and correspondingly, the fixed hole 132 is located on the bearing column 131 and matched with the positioning pin of the positioning structure 312 to fix the side wall 140.

[0108] Example four

[0109] In example one or example three, the window bottom surface 111 comprises a first bottom surface 111a and a second bottom surface 111b, and the second bottom surface 111b has a height difference with the first bottom surface 111a, thereby forming a limiting step. However, in the prior art, the window bottom surface 111 may be a whole surface without a step, so the height difference between the second bottom surface 111b and the first bottom surface 111a is 0, and the second bottom surface 111b and the first bottom surface 111a are integrated as a whole, that is, the window bottom surface 111, thereby forming a large bottom surface. When forming, if the technology of matching the fixed hole 132 with the positioning pin of the positioning structure 312 in example one or example three is also used to fix the side wall 140, the overflow of glue can also be prevented. Figure 15

[0110] Example five

[0111] As Figure 16 , Figure 17 ​As shown, this embodiment, based on Embodiment 1, Embodiment 2, Embodiment 3, or Embodiment 4, employs a different fixing part 130 structure. Specifically, the fixing part 130 includes a fixing boss 135, which protrudes from the surface of the supporting column 131 or the second top surface 112b of the transparent window body 110. Correspondingly, the positioning structure 312 on the mold 300 is provided with a groove structure. The fixing boss 135 is used to fix the side wall 140 by fitting the positioning structure 312 on the mold 300 into the groove structure. By fitting the positioning structure 312 on the mold 300 onto the fixing boss 135, the outer surface of the fixing boss 135 abuts against the inner wall of the groove structure of the positioning structure 312. This allows the positioning structure 312 to structurally reinforce the transparent window body 110, including the side wall 140, and fix the side wall 140 during the molding process.

[0112] Example 6

[0113] like Figure 18 , Figure 19 As shown, the transparent window structure 100 in this embodiment includes a transparent window body 110 and a sensor mounting position 120. The transparent window body 110 has a bottom surface 111 facing the part to be measured and a top surface 112 facing away from the part to be measured. The sensor mounting position 120 is disposed on the top surface 112. The top surface 112 and the bottom surface 111 are also provided with an upper pressure surface 160 and a lower pressure surface 170, respectively, and the area of ​​the upper pressure surface 160 is greater than or equal to the area of ​​the lower pressure surface 170. During the molding process, the upper pressure surface 160 is used to contact the upper pressure structure 311 or the lower pressure structure 331 of the mold 300 and bear the pressure applied by it. The lower pressure surface 170 is used to abut against the intermediate core pull 320 and bear the pressure applied by the upper pressure structure 311 or the lower pressure structure 331.

[0114] In this embodiment, as Figure 19 , Figure 20 As shown, the top surface 112 of the window includes a first top surface 112a, which is the bottom surface of the sensor mounting position 120, and the upper pressure surface 160 includes the first top surface 112a; the bottom surface 111 of the window includes a first bottom surface 111a, which is the lower pressure surface 170. Therefore, the area of ​​the first bottom surface 111a is less than or equal to the area of ​​the first top surface 112a, and the orthographic projection of the first bottom surface 111a onto the first top surface 112a is located within the area of ​​the first top surface 112a. This ensures that the area of ​​the first top surface 112a completely covers the first bottom surface 111a. When the first top surface 112a is subjected to force, the force application area completely covers the first bottom surface 111a, resulting in a more uniform force distribution on the first bottom surface 111a and ensuring that the edges of the first bottom surface 111a are pressed firmly onto the central core puller 320, preventing glue overflow.

[0115] In other embodiments, the upper pressure surface 160 may further include other surfaces on the top surface 112 of the window that are subjected to pressure from the mold's pressure structure; such as Figure 21 As shown, the transparent window body 110 also includes a sidewall 140 located on the side away from the part to be measured, and the top surface 112 of the window also includes a second top surface 112b, which is the upper surface of the sidewall 140. The upper pressure surface 160 also includes at least a portion of the second top surface 112b.

[0116] like Figure 19 , Figure 26 As shown, the bottom surface 111 of the window also includes a second bottom surface 111b; the second bottom surface 111b is arranged around the outside of the first bottom surface 111a, and there is a height difference between the second bottom surface 111b and the first bottom surface 111a, thereby forming a limiting step, so that the formed support member 200 cooperates with the limiting step to ensure a more secure connection with the transparent window body 110.

[0117] like Figure 19 , Figure 20 As shown, when using the transparent window structure 100 in this solution, during the manufacturing of the pulse oximeter probe, the prepared transparent window body 110 is first placed inside the mold 300. The upper pressure-bearing surface 160 of the transparent window structure 100 abuts against the upper pressure-applying structure 311 or the lower pressure-applying structure 331 of the mold 300 and bears the pressure applied by it. The lower pressure-bearing surface 170 of the transparent window structure 100 abuts against the middle core pull 320 of the mold 300. The pressure applied by the upper pressure-applying structure 311 or the lower pressure-applying structure 331 to the upper pressure-bearing surface 160 is transmitted to the lower pressure-bearing surface 170. The lower pressure-bearing surface 170 indirectly bears the pressure applied by the upper pressure-applying structure 311 or the lower pressure-applying structure 331, so that the lower pressure-bearing surface 170 and the middle core pull 320 are pressed together. Thus, the transparent window structure 100 is fixed inside the mold 300 and is not easy to move. From another perspective, the pressure on the lower pressure surface 170 can also be considered as being applied by the intermediate core puller 320. The upper pressure structure 311 and the intermediate core puller 320 clamp the upper transparent window structure 100, and the lower pressure structure 331 and the intermediate core puller 320 clamp the lower transparent window structure 100. Thus, the upper mold 310, the upper pressure structure 311, the intermediate core puller 320, the lower mold 330, and the lower pressure structure 331 enclose and form a filling cavity 340 that conforms to the shape of the support member 200 of the pulse oximeter probe to be manufactured. High-temperature non-transparent molding material is injected into the filling cavity 340, and after cooling, the pulse oximeter probe of the present invention can be obtained.

[0118] The area of the upper pressure receiving surface 160 is greater than or equal to the area of the lower pressure receiving surface 170, so that the sensor mounting position 120 can accommodate the upper pressure applying structure 311 or the lower pressure applying structure 331 with a larger area than the area of the lower pressure receiving surface 170. The lower pressure receiving surface 170 is subjected to a large and uniform pressure applied by the upper pressure applying structure 311, so that the edge position of the lower pressure receiving surface 170 is also within the range of the pressure applied by the upper pressure applying structure 311. Thus, the edge of the first bottom surface 111a is also subjected to sufficient pressure, and can resist impact force during molding without being deformed. Therefore, the present application can effectively prevent the molding material from penetrating into the first bottom surface 111a during molding, thereby forming a product similar to Figure 5 (b) without overflow.

[0119] In addition, when blood oxygen detection is performed, the lower pressure receiving surface 170 also serves as a light passage. On the transparent window structure 100 on the side where the light emitting element is located, the light emitted by the light emitting element passes through the first top surface 112a and the lower pressure receiving surface 170 in sequence and then reaches the detection site. On the transparent window structure 100 on the side where the light receiving element is located, the light emitted by the light emitting element passes through the detection site and then passes through the lower pressure receiving surface 170 and the first top surface 112a in sequence and then reaches the light receiving element. Thus, if the area of the lower pressure receiving surface 170 is large, when blood oxygen detection is performed, external stray light is likely to enter from the edge of the lower pressure receiving surface 170, which can cause the blood oxygen saturation probe to be easily disturbed by external stray light. In the present embodiment, the area of the lower pressure receiving surface 170 is reduced, which can greatly reduce the risk of overflow and prevent external stray light from entering from the edge of the lower pressure receiving surface 170 after molding, thereby reducing stray light interference and improving the accuracy of blood oxygen detection.

[0120] As shown in Figure 19 Further, the center point of the orthographic projection of the first bottom surface 111a on the plane of the first top surface 112a coincides with the center point of the first top surface 112a in the present embodiment. When the center points of the two coincide, the forces on the edge of each side of the first bottom surface 111a are symmetrical. This structure can achieve stable positioning of the transparent window body 110 in the mold 300 while preventing deformation during molding, and can effectively prevent stray light interference after forming the blood oxygen saturation probe product.

[0121] It is particularly noted that the upper compression surface 160 is greater than or equal to the lower compression surface 170, so that the upper compression surface 160 can cover the edge portion of the lower compression surface 170, and thus the pressure applied by the upper pressing structure 311 or the lower pressing structure 331 to the upper compression surface 160 can be effectively transmitted to the edge portion of the lower compression surface 170, so as to press the edge portion of the lower compression surface 170 against the middle core 320, thereby preventing the molding material from penetrating into the edge of the lower compression surface 170 during the molding process, and causing the product to be unqualified. Therefore, as long as the edge of the lower compression surface 170 is pressed, the molding material cannot penetrate into the edge of the lower compression surface 170, and even less can penetrate into the central region of the lower compression surface 170.

[0122] Sometimes, the contact surface of the upper pressing structure 311 and the lower pressing structure 331 with the first top surface 112 is designed as a hollow structure, for example, the contact surface of the upper pressing structure 311 and the lower pressing structure 331 is shaped as a "mouth" shape, that is, the middle of the upper pressing structure 311 and the lower pressing structure 331 is a groove, and the groove is not in contact with the first top surface 112, only the peripheral portion is in contact with the first top surface 112. Therefore, during the molding process, only the edge portion of the upper compression surface 160 is in contact with the "mouth" shaped contact surface of the upper pressing structure 311, and the middle portion of the upper compression surface 160 corresponds to the hollow portion of the upper pressing structure 311 or the lower pressing structure 331, but is not in contact with the upper pressing structure 311 or the lower pressing structure 331. In this case, although the actual contact area of the upper compression surface 160 is smaller than the area surrounded by the "mouth" shaped contact surface of the upper pressing structure 311 or the lower pressing structure 331, the transmitted pressing force has already pressed the periphery of the lower compression surface 170, and can also play a certain fixing role for the transparent window body 110, but the fixing role is smaller than that when the upper pressing structure 311 or the lower pressing structure 331 is solid. However, in this case, the area of the upper compression surface 160 is still the area surrounded by the contact surface of the upper pressing structure 311 or the lower pressing structure 331, and the hollow structure does not affect the area of the upper compression surface 160.

[0123] When the upper pressing structure 311 and the lower pressing structure 331 are solid structures, the shape of the upper pressing structure 311 and the lower pressing structure 331 is consistent with the upper compression surface 160, and the area of the upper compression surface 160 is equal to the area of the upper pressing structure 311 or the lower pressing structure 331 in contact with the first top surface 112.

[0124] If the upper pressing structure 311 and the lower pressing structure 331 are notch structures, for example, the contact surface of the upper pressing structure 311 and the lower pressing structure 331 is shaped as a C shape, such an embodiment does not deviate from the inventive concept of the present application, and belongs to the deformation of the technical solution in which the upper pressing structure 311 and the lower pressing structure 331 are notch structures, and still falls within the protection scope of the present application.

[0125] Example Seven

[0126] As shown in Figure 22 , Figure 23 , the fixing portion 130 in the above examples can be combined with the scheme in which the area of the upper compression surface 160 is greater than or equal to the area of the lower compression surface 170, which can better solve the problems in the prior art.

[0127] As shown in Figure 22 and Figure 23 , the scheme of Example One is combined with the scheme of Example Six to form the scheme of the present example. The transparent window structure 100 in the present example not only has an upper compression surface 160 with an area greater than that of the lower compression surface 170, but also has a fixing portion 130. Thus, not only is the area of the first bottom surface 111a less than that of the first top surface 112a, but the fixing portion 130 is provided to fix the side wall 140 outside the sensor mounting position 120. Thus, the two schemes are combined, not only achieving a greater and more uniform distribution of pressure on the window bottom surface 111a, enabling the window bottom surface (first bottom surface 111a) of the transparent window body 110 to fully conform to the surface of the middle core-pulling 320 of the mold 300, but also achieving the fixation of the side wall 140, enabling the side wall 140 to avoid movement and deformation when impacted during the molding process.

[0128] As shown in Figure 24 , the scheme of Example Three is combined with the scheme of Example Six, and when the area of the first bottom surface 111a is less than that of the first top surface 112a, the fixing hole 132 is cooperated with the positioning structure 312 on the mold 300, which not only can abut against the inner wall of the fixing hole 132, but also can abut and press against the hole bottom surface 133 of the fixing hole 132, thus achieving more stable fixation of the side wall 140 of the transparent window body 110. Since the positioning structure 312 abuts and presses against the hole bottom surface 133 of the fixing hole 132, the upper compression surface 160 not only includes the first top surface 112a, but also includes the hole bottom surface 133 of the fixing hole 132. It should be noted that, on the basis of the above, the upper compression surface 160 can also include the second top surface 112b, achieving maximization of the compression area of the upper compression surface 160.

[0129] As shown in Figure 24As shown, when the fixing part 130 formed by the bearing column 131 and the fixing hole 132 is used in cooperation with the first top surface 112a in the specific structure, the upper compression surface 160 includes the first top surface 112a and the hole bottom surface 133 of the fixing hole 132, and the inner bottom surface of the fixing hole 132 covers the top corner edge of the first bottom surface 111a. By setting the fixing hole 132, when the positioning structure 312 on the mold 300 is inserted into the fixing hole 132, not only the side surface of the fixing hole 132 is positioned, but also the hole bottom surface 133 of the fixing hole 132 is extruded to a certain extent, which is equivalent to increasing the extrusion stress area above, thereby expanding the coverage range of the upper compression surface 160, substantially reducing the ratio of the area of the lower compression surface 170 to the area of the upper compression surface 160, and because the bearing column 131 can be arranged at the corner inside the sensor mounting position 120, the edge line of the first bottom surface 111a can be located in the area covered by the hole bottom surface 133 of the fixing hole 132, so that the positioning structure 312 extrudes the hole bottom surface 133 of the fixing hole 132, and the positioning structure 312 also presses the edge of the first bottom surface 111a, so that the edge of the first bottom surface 111a is not easy to be impacted and separated from the surface of the middle core-pulling 320, further improving the connection stability, and the improvement of the overflow problem in the molding process is more obvious. When the positioning part 130 adopts the structure of the fixed boss 135, the principle is the same as above, and will not be described in detail.

[0130] Therefore, by setting the fixing part 130, not only the coverage range of the upper compression surface 160 is expanded, but also the first bottom surface 111a is more comprehensively covered by the compression area surrounded by the plurality of fixing holes 132 or fixing bosses 135, and the plurality of fixing holes 132 or fixing bosses apply force to the first bottom surface 111a at multiple positions, so that the side wall 140 of the transparent window body 110 will not be displaced during molding.

[0131] Embodiment Eight

[0132] As shown in Figure 25 , Figure 26 As shown in the embodiment, the blood oxygen saturation probe further includes a support 200 arranged on the to-be-measured part, a sensor element (not shown in the figure) and the transparent window structure 100 (refer to the transparent window structure 100 in Embodiment Seven) described above, and at least one transparent window structure 100 is arranged on the support 200, and the sensor element is arranged in the transparent window structure 100. The blood oxygen saturation probe formed by the transparent window structure 100 with the above structure avoids the overflow problem in the molding process.

[0133] Further, the support member 200 in this embodiment specifically includes: a first clamping part 220, a second clamping part 230, and a connecting part 240 connecting the first clamping part 220 and the second clamping part 230. The upper and lower ends of the connecting part 240 are respectively connected to the front ends of the first clamping part 220 and the front ends of the second clamping part 230. The first clamping part 220, the second clamping part 230, and the connecting part 240 enclose and form an accommodating space 210. The first clamping part 220, the second clamping part 230, and the connecting part 240 are integrally molded using a flexible material, such as silicone or rubber, thereby improving wearing comfort and simplifying the structure of the clamping part, making it easier to assemble the pulse oximeter probe. Since the flexible material itself lacks rigidity and elasticity, it is difficult to firmly clamp onto the finger of the subject using its own strength. Therefore, an additional fixing component is required, which is set on the first clamping part 220 and the second clamping part 230.

[0134] Furthermore, the first clamping part 220 has a first fixing groove 221 at one end away from the connecting part 240, and the second clamping part 230 has a second fixing groove 231 at one end away from the connecting part 240. The first fixing groove 221 and the second fixing groove 231 both extend in the front-back direction and are correspondingly arranged in the upper and lower positions. The fixing component includes a fixing strap wrapped around the first fixing groove 221 and the second fixing groove 231. The fixing strap can be medical tape, rubber band, Velcro, etc.

[0135] In other embodiments, the first clamping portion 220 and the second clamping portion 230 can be made of rigid material, and the connecting portion 240 can include a pin and a spring. The first clamping portion 220 and the second clamping portion 230 are movably connected by the pin, and the two ends of the spring are respectively connected to the first clamping portion 220 and the second clamping portion 230. The spring is used to apply a closing force to the first clamping portion 220 and the second clamping portion 230. Thus, the first clamping portion 220 and the second clamping portion 230 can be opened and clamped onto the finger for fixation without the need for additional fixing components.

[0136] In other embodiments, the support member 200 may also be a finger sleeve with an opening at the rear end, and the light-emitting element and the photosensitive element are disposed inside the finger sleeve.

[0137] like Figure 26 As shown, the transparent window body 110 is further embedded in the support member 200. The support member 200 has a mounting opening 250 on the side facing the sensor mounting position 120. The length and width of the mounting opening 250 are both smaller than the area of ​​the top surface 112 of the transparent window body 110. By providing the mounting opening 250, the upper and lower pressure structures 331 can be accommodated during the molding process, and the sensor element can be easily installed onto the sensor mounting position 120. The mounting opening 250 is connected to the sensor mounting position 120 in the vertical direction.

[0138] In some prior art, as shown in Figure 1 、 Figure 2 , the size of the installation opening 250 is smaller than that of the sensor installation site 120, which makes it difficult to take out the upper pressing structure 311 after molding, and also causes the operation space for installing the sensor element to be too small. As shown in Figure 26 , to solve the above technical problems, the size of the installation opening 250 in the present scheme can be consistent with the size of the sensor installation site 120. On the one hand, the size of the installation opening 250 is large enough to facilitate the removal of the upper pressing structure 311 after molding and the installation of the sensor element; on the other hand, the outer side edge portion of the installation opening 250 can cover the top surface of the side wall 140 of the transparent window body 110, so that the fixing of the transparent window body 110 is more stable.

[0139] As shown in Figure 26 , further, the inner wall of the accommodation space 210 is a curved surface, and the window body bottom surface 111 is a curved surface that is connected with the inner wall of the accommodation space 210. In order to improve the wearing comfort, the side wall 140 of the accommodation space 210 is a curved surface that matches the shape of the finger, and the shape of the window body bottom surface 111 of the transparent window body 110 is also a curved surface, and the connection is smooth, so that the curved surface matches the shape of the finger, improving the comfort of wearing the finger. Moreover, the inner side of the first clamping portion 220 and the second clamping portion 230 is a curved surface that matches the shape of the finger.

[0140] The sensor element of the blood oxygen probe includes a light-emitting element and a light-receiving element. According to the light path, the blood oxygen probe can be divided into a transmission type and a reflection type; in the use state, the light-emitting element and the light-receiving element of the transmission type blood oxygen probe are located on opposite sides of the finger, and the light of a specific wavelength emitted by the light-emitting element penetrates the finger of the measured person and reaches the light-receiving element; while the light-emitting element and the light-receiving element of the reflection type blood oxygen probe are arranged adjacent to each other, and the light of a specific wavelength emitted by the light-emitting element is irradiated onto the finger of the measured person, and part of the light is reflected to the light-receiving element. Compared with the two, the accuracy of the transmission type blood oxygen probe is higher than that of the reflection type blood oxygen probe, so the two transparent window structures 100 in the present embodiment are arranged on the first clamping portion 220 and the second clamping portion 230 respectively. Thus, when blood oxygen detection is performed, the light-emitting element and the light-receiving element are respectively located on both sides of the user's finger to form a transmission type light path. It should be noted that in other embodiments, a reflection type structure can also be provided.

[0141] As shown in Figure 25 、 Figure 26As shown, further, the support 200 also comprises a wire outlet 260 and a wire channel 270, the wire outlet 260 is arranged on the end of the first clamping part 220 away from the connecting part 240, and the wire channel 270 is arranged inside the first clamping part 220 and inside the second clamping part 230 and is used for threading the wire connecting the two sensor elements, the wire channel 270 is used to communicate the sensor mounting site 120 with the wire outlet 260 and is used to lead out the wire connecting the sensor elements. In the specific structure, if the blood oxygen saturation probe is connected with the monitoring device through the wire, in order to facilitate the arrangement of the wire, the wire outlet 260 and the wire channel 270 are arranged, the wire outlet 260 is arranged on the rear end of the first clamping part 220, and the wire channel 270 is arranged inside the first clamping part 220, the connecting part 240 and the second clamping part 230, the wire connecting the light emitting element and the light receiving element is threaded through the wire channel 270 and can be connected with the external monitoring device from the wire outlet 260.

[0142] As shown in Figure 26 In order to facilitate the wire to pass through, a notch 150 is arranged on the side of the sensor mounting site 120 which communicates with the wire channel 270 to facilitate the wire to pass through. In other embodiments, the notch 150 can not be arranged, and the wire can be connected from above the sensor mounting site 120; or the notch 150 can be arranged on both sides of the sensor mounting site 120. In other embodiments, the light emitting element, the light receiving element and the external monitoring device can also be connected through a wireless communication module, and the blood oxygen monitoring circuit can also be directly arranged on the blood oxygen probe.

[0143] In the above-mentioned embodiments, the finger of the measured person is taken as an example for blood oxygen detection, but the application of the application scheme is not limited to the detection of the finger of the measured person, after adjusting the shape of the containing space 210, it can also be applied to the blood oxygen detection of other to-be-detected parts, such as toes, earlobes, etc.

[0144] Embodiment Nine

[0145] As shown in Figure 27As shown, the support 200 in the embodiment differs from that in Embodiment Eight in the specific structure. The support 200 in the embodiment comprises a sticking accessory 280 for sticking on the part to be measured. In use, the sticking accessory 280 is stuck on the part to be measured through the sticking surface. The transparent window structure 100 (the transparent window structure 100 in Embodiment Seven) is arranged in the sticking accessory 280 and located at one side of the part to be measured. The sensor element is arranged in the transparent window structure 100. Thus, the light emitting element and the light receiving element are arranged adjacent to each other through the transparent window structure 100. The light of the specific wavelength emitted by the light emitting element is irradiated on the finger of the person to be measured. Part of the light is reflected to the light receiving element, thereby realizing the reflective blood oxygen concentration detection. In the embodiment, one transparent window structure 100 can be arranged, and the light emitting element and the light receiving element are arranged in the same transparent window structure 100. Alternatively, two transparent window structures 100 adjacent to each other can be arranged, and the light emitting element and the light receiving element are arranged in the two transparent window structures 100, respectively.

[0146] In summary, the transparent window and the blood oxygen saturation probe have the following advantages.

[0147] (1) The fixing part for fixing the side wall of the transparent window body is arranged. In the molding process, the deformation of the side wall of the transparent window body caused by the impact of the molding material is prevented, thereby preventing the displacement of the transparent window body and avoiding the infiltration of the molding material into the window bottom surface. On the other hand, the fixing part also enables the side wall to be closely attached to the corresponding upper pressing structure or lower pressing structure, thereby preventing the infiltration of the molding material into the sensor mounting position.

[0148] (2) The upper pressure receiving surface of the transparent window body is larger than the lower pressure receiving surface. In the molding process, when the pressing structure of the mold is used to press the transparent window body, the pressure conducted through the upper pressure receiving surface makes the pressure received by the window bottom surface larger and more uniform. The window bottom surface of the transparent window body can be fully attached to the middle core-pulling surface of the mold. The infiltration of the molding material into the surface of the window bottom surface of the transparent window body is effectively prevented, thereby avoiding the irregular obstruction. The area of the window bottom surface of the transparent window body is reduced. The stray light interference is also reduced, and the accuracy of the blood oxygen detection is improved.

[0149] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the same. Although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by the equivalent ones. The modification or replacement does not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A transparent window structure (100) for being arranged on a support (200) for being arranged at a site to be measured, characterized in that, The transparent window structure (100) comprises: a transparent window body (110) having a window bottom surface (111) facing the site to be measured, a window top surface (112) facing away from the site to be measured, and a side wall (140); the window top surface (112) comprises a first top surface (112a) and a second top surface (112b); a part of the window top surface (112) surrounded by an inner surface (141) of the side wall (140) is the first top surface (112a); an upper surface of the side wall (140) is the second top surface (112b); a height from the first top surface (112a) to the second top surface (112b) is greater than or equal to 0; a sensor mounting position (120) provided on the window top surface (112) of the transparent window body (110) for arranging a sensor element; a fixing portion (130) provided on the transparent window body (110) for cooperating with a mold (300) to fix the side wall (140) to prevent movement of the side wall (140) during molding, thereby avoiding that a molding material enters the window bottom surface (111) due to relative displacement between the window bottom surface (111) and an intermediate core (320) of the mold (300), and the fixing portion (130) also fixes the side wall of the sensor mounting position (120) to prevent the molding material from penetrating into the sensor mounting position (120).

2. The transparent window structure (100) according to claim 1, characterized in that The fixing portion (130) comprises a fixing hole (132) for fixing the side wall (140) by embedding a positioning structure (312) on the mold (300).

3. The transparent window structure (100) according to claim 2, characterized in that The fixing hole (132) is provided with a plurality of fixing holes.

4. The transparent window structure (100) according to claim 3, characterized in that The plurality of fixing holes (132) are symmetrically distributed around the center of the sensor mounting position (120).

5. The transparent window structure (100) according to claim 2, characterized in that The fixing portion (130) further comprises a bearing column (131) provided on the window top surface (112) and connected with the side wall (140), and the fixing hole (132) is formed in the bearing column (131).

6. The transparent window structure (100) according to claim 1, characterized in that The fixing portion (130) comprises a fixing boss (135) connected with the side wall (140), and the fixing boss (135) is used for fixing the side wall (140) by sleeving a positioning structure (312) on the mold (300).

7. The transparent window structure (100) according to claim 1, characterized in that The fixing portion (130) comprises a bearing column (131) provided on the window top surface (112) and connected with the side wall (140), and a fixing boss (135) provided on the bearing column (131) and used for fixing the side wall (140) by sleeving a positioning structure (312) on the mold (300).

8. A transparent window structure (100) for being arranged on a support (200) for being arranged on a site to be measured, characterized in that The transparent window structure (100) comprises: a transparent window body (110) having a window bottom surface (111) facing the site to be measured, and a window top surface (112) facing away from the site to be measured; A sensor mounting position (120) is arranged on the window top surface (112) for arranging a sensor element; An upper pressure receiving surface (160) is arranged on the window top surface (112), which is used to contact and bear the pressure applied by the upper pressure applying structure (311) of the mold (300) or to contact and bear the pressure applied by the lower pressure applying structure (331) of the mold (300) during molding; A lower pressure receiving surface (170) is arranged on the window bottom surface (111), which is used to abut against the middle core pulling (320) of the mold (300) and bear the pressure applied by the upper pressure applying structure (311) or the lower pressure applying structure (331) during molding; The area of the upper pressure receiving surface (160) is greater than or equal to the area of the lower pressure receiving surface (170); When the transparent window body (110) is pressed by the pressing structure of the mold (300), the window bottom surface (111) is fully attached to the surface of the middle core pulling (320) of the mold (300), preventing the molding material from penetrating into the surface of the window bottom surface (111) and causing irregular shielding rubber after molding.

9. The transparent window structure (100) according to claim 8, characterized in that The upper pressure receiving surface (160) includes a first top surface (112a), which is the bottom surface of the sensor mounting position (120).

10. The transparent window structure (100) according to claim 9, characterized in that The window bottom surface (111) includes a first bottom surface (111a), which is the lower pressure receiving surface (170); The area of the first bottom surface (111a) is less than or equal to the area of the first top surface (112a), and the orthographic projection of the first bottom surface (111a) on the first top surface (112a) is located within the area of the first top surface (112a).

11. The transparent window structure (100) according to claim 10, characterized in that The window bottom surface (111) further includes a second bottom surface (111b); The second bottom surface (111b) is arranged around the outside of the first bottom surface (111a); The second bottom surface (111b) has a height difference with the first bottom surface (111a), and the first bottom surface (111a) protrudes from the second bottom surface (111b).

12. The transparent window structure (100) according to claim 10, characterized in that The center point of the orthographic projection of the first bottom surface (111a) on the plane of the first top surface (112a) coincides with the center point of the first top surface (112a).

13. The transparent window structure (100) according to claim 9, characterized in that The transparent window body (110) further includes a side wall (140) on the side away from the to-be-measured part, the upper surface of the side wall (140) is a second top surface (112b), and the upper pressure receiving surface (160) further includes at least a part of the second top surface (112b).

14. A blood oxygen saturation probe characterized by, It comprises: A support (200) arranged at the to-be-measured part; A sensor element; And The transparent window structure (100) according to any one of claims 1-13; The transparent window structure (100) is provided at least one, and the at least one transparent window structure (100) is respectively arranged on the support (200), and the sensor element is arranged in the transparent window structure (100).

15. The oximetry probe of claim 14, wherein, The support (200) has a containing space (210) for accommodating the part to be measured.

16. The oximetry probe of claim 15, wherein, The inner wall of the containing space (210) is a curved surface matched with the shape of the part to be measured, and the window bottom surface (111) is a curved surface matched with the inner wall of the containing space (210).

17. The oximetry probe of claim 15, wherein, The support (200) comprises a first clamping part (220), a second clamping part (230) and a connecting part (240) connecting the first clamping part (220) and the second clamping part (230), and the first clamping part (220), the second clamping part (230) and the connecting part (240) form the containing space (210). The transparent window structure (100) is provided two, and the two transparent window structures (100) are respectively arranged on the first clamping part (220) and the second clamping part (230). The sensor element comprises a light emitting element and a light receiving element, and is arranged in the sensor mounting position (120) of the two transparent window structures (100).

18. The oximetry probe of claim 17, wherein, The support (200) further comprises a wire outlet (260) and a wire channel (270), the wire outlet (260) is arranged on the outer end of the first clamping part (220), the wire channel (270) is arranged in the inner part of the first clamping part (220) and the inner part of the second clamping part (230) and is used for penetrating the wire connecting the two sensor elements, and the wire channel (270) is used for connecting the sensor mounting position (120) with the wire outlet (260) to lead out the wire connecting the sensor element.

19. The oximetry probe of claim 14, wherein, The support (200) comprises a sticking accessory (280) for sticking on the part to be measured. The transparent window structure (100) is arranged in the sticking accessory (280) and located on one side of the part to be measured, and the sensor element is arranged in the transparent window structure (100).

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