Blood oxygen saturation sensor with high sensitivity

Abstract

The utility model discloses an oxyhemoglobin saturation sensor with high sensitivity, which comprises a deformation elastic piece, a light generating element and a light receiving element, the deformation elastic piece comprises a deformation part, an extension straight section part A and an extension straight section part B, and the extension straight section part A and the extension straight section part B respectively extend along a straight line from two ends of the deformation part. A containing groove A with an opening in the side face is formed in the face, back to the extending straight section part B, of the extending straight section part A, and a containing groove B with an opening in the side face is formed in the face, back to the extending straight section part A, of the extending straight section part B; a light-transmitting opening A communicated with the object containing groove A is formed in the face, facing the extending straight section part B, of the extending straight section part A, and a light-transmitting opening B communicated with the object containing groove B is formed in the face, facing the extending straight section part A, of the extending straight section part B; the light generating element is bonded in the object containing groove A through the side wall, and the light receiving element is bonded in the object containing groove B through the side wall. The sensitivity of the oxyhemoglobin saturation sensor can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blood oxygen saturation sensors, in particular to a blood oxygen saturation sensor with high sensitivity. Background Art

[0002] The blood oxygen saturation sensor is an instrument for measuring the oxygen concentration in human blood, that is, the blood oxygen saturation. The blood oxygen saturation sensor includes a light generating element and a light receiving element. Two light emitting tubes are arranged on the front of the light generating element, one of which emits visible red light with a wavelength of 660nm, and the other emits invisible infrared light with a wavelength between 920 and 950nm. After the infrared light and red light pass through certain tissues of the human body, they are received by the photoelectric tube on the front of the light receiving element. After receiving the light signal, the light receiving element converts it into a corresponding electrical signal and performs calculations to obtain the corresponding blood oxygen saturation.

[0003] The existing blood oxygen saturation sensor, as shown in the publication number CN115590507A, includes a deformable elastic member, the deformable elastic member includes a deformable portion and two extended straight sections, the two extended straight sections are: extended straight section A, extended straight section B, the extended straight section A is provided with a receiving hole A, the extended straight section B is provided with a receiving hole B, the receiving hole A is equipped with a light receiving element, and the receiving hole B is equipped with a light generating element;

[0004] Among them, the storage hole A and / or the storage hole B is a stepped hole; the storage hole A is constructed with a step surface A for blocking and bonding with the front edge of the light receiving element, and / or the storage hole B is constructed with a step surface B for blocking and bonding with the front edge of the light generating element.

[0005] In the existing blood oxygen saturation sensor, the light receiving element is bonded to the step surface A or / and the light generating element is bonded to the step surface B. Since the front sides of the light receiving element or / and the light generating element are fixed in the step through hole by bonding, the adhesive easily blocks the light emitting tube or / and the photoelectric tube on the front sides of the light receiving element or / and the light generating element, thereby reducing the sensitivity of the blood oxygen saturation sensor. At the same time, due to the design of the step through hole, the effective area of ​​the light emitting tube and the photoelectric tube is reduced, thereby reducing the sensitivity of the blood oxygen saturation sensor. Utility Model Content

[0006] The utility model aims to provide a blood oxygen saturation sensor with high sensitivity, which can effectively improve the sensitivity of the blood oxygen saturation sensor.

[0007] In order to solve the above technical problems, the utility model adopts the following solutions:

[0008] A highly sensitive blood oxygen saturation sensor comprises a deformable elastic member, the deformable elastic member comprises a deformable portion and two extended straight sections, the two extended straight sections are respectively: an extended straight section A and an extended straight section B, the extended straight section A and the extended straight section B are respectively extended along straight lines from two ends of the deformable portion, and further comprises a light generating element and a light receiving element, a side-opening receiving groove A is provided on the side of the extended straight section A facing away from the extended straight section B, and a side-opening receiving groove B is provided on the side of the extended straight section B facing away from the extended straight section A;

[0009] A light-transmitting port A connected to the receiving slot A is provided on the side of the extended straight section A facing the extended straight section B, and a light-transmitting port B connected to the receiving slot B is provided on the side of the extended straight section B facing the extended straight section A;

[0010] The light generating element is bonded to the receiving tank A through the side wall, and the light receiving element is bonded to the receiving tank B through the side wall. Its function is that, through the setting of the receiving tank, the light generating element and the light receiving element can be bonded to the receiving tank A and the receiving tank B respectively through the side walls of the light generating element and the light receiving element, which can effectively prevent the adhesive from blocking the light receiving element and / or the light emitting tube or / and the photoelectric tube on the front of the light generating element, thereby improving the sensitivity of the blood oxygen saturation sensor.

[0011] The receiving groove A opens toward one side of the deformation part, and the receiving groove B opens toward one side of the deformation part.

[0012] The bottom side of the light generating element is bonded to the side of the receiving groove A facing away from the deformation part, the front side of the light generating element faces the light transmission port A, and the opening area of ​​the light transmission port A is larger than the area of ​​the front side of the light generating element;

[0013] The bottom side of the light receiving element is bonded to the side of the receiving groove B that faces away from the deformation part, and the front side of the light receiving element faces the light-transmitting port B. The opening area of ​​the light-transmitting port B is larger than the area of ​​the front side of the light receiving element. Its function is that, through the setting of the light-transmitting port A, the light generated by the light generating element can be emitted toward the extended straight section B; through the setting of the light-transmitting port B, the light receiving element can receive the light emitted by the light generating element; through the design of the area of ​​the light-transmitting port A, the light generated by the light generating element can be prevented from being blocked by the extended straight section A, and the sensitivity of the blood oxygen saturation sensor can be improved by expanding the effective area of ​​the light generating element emitting light; through the design of the area of ​​the light-transmitting port B, the light received by the light receiving element can be prevented from being blocked by the extended straight section B, and the sensitivity of the blood oxygen saturation sensor can be improved by expanding the effective area of ​​the light receiving element receiving light.

[0014] It also includes a wire member, and the pins on the light-generating element and the light-receiving element for welding with the wire member are arranged on a side facing the deformation part. Its function is to prevent the wire member from colliding with the wire member originally welded on the back of the light-generating element and the light-receiving element when the light-generating element and the light-receiving element are respectively loaded into the receiving slot A and the receiving slot B, thereby causing the wire member to fall off from the light-generating element or the light-receiving element by welding the wire member on the top surface of the light-generating element and the light-receiving element.

[0015] The deformable portion is provided with a wire groove for placing the wire guide, and the wire groove extends along the outer contour of the deformable portion. Its function is to protect the wire guide through the arrangement of the wire groove.

[0016] The wire groove is provided with limit blocks on both sides of the guide member. The limit blocks can prevent the wire member from shaking left and right in the wire groove, thereby causing the wire member to separate from the welding point of the light generating element or the light receiving element.

[0017] The limit blocks are evenly distributed in multiple groups along the extension direction of the wire groove. The function is to enhance the structural strength of the deformation part by setting multiple groups of limit blocks.

[0018] The deformable part is provided with a bar hole extending along the extension direction of the deformable part, and a wire groove is provided on both sides of the bar hole. Its function is to reduce the deformation elastic potential energy and the pressure on human tissue through the arrangement of the bar hole, and at the same time promote the reduction of the overall weight and improve the user experience.

[0019] The device further comprises an outer cover, which comprises an outer cover A having a blind hole A and an outer cover B having a blind hole B, wherein the receiving slot A is inserted into the blind hole A, and the receiving slot B is inserted into the blind hole B. The device is used to prevent the outer cover from being pressed and contacted with the light generating element or the light receiving element when the outer cover is installed, thereby preventing the light generating element or the light receiving element from being damaged.

[0020] The outer cover A is provided with a light-transmitting area A corresponding to the light-transmitting opening A, and the outer cover B is provided with a light-transmitting area B corresponding to the light-transmitting opening B. The light-transmitting area A or / and the light-transmitting area B are through holes or thinned layers or infrared-transmitting layers or transparent layers.

[0021] The utility model has the beneficial effects:

[0022] 1. Through the setting of the receiving tank, the light generating element and the light receiving element can be bonded to the receiving tank A and the receiving tank B respectively through the side walls of the light generating element and the light receiving element, which can effectively prevent the adhesive from blocking the light receiving element and / or the light emitting tube or / and the photoelectric tube on the front of the light generating element, thereby improving the sensitivity of the blood oxygen saturation sensor;

[0023] 2. By setting the light-transmitting port A, the light generated by the light-generating element can be emitted toward the extended straight section B; by setting the light-transmitting port B, the light-receiving element can receive the light emitted by the light-generating element; by designing the area of ​​the light-transmitting port A, it is possible to avoid the light generated by the light-generating element being blocked by the extended straight section A, and the sensitivity of the blood oxygen saturation sensor is improved by expanding the effective area of ​​the light-emitting element. By designing the area of ​​the light-transmitting port B, it is possible to avoid the light received by the light-receiving element being blocked by the extended straight section B, and the sensitivity of the blood oxygen saturation sensor is improved by expanding the effective area of ​​the light-receiving element receiving light. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the three-dimensional structure of the deformation part;

[0025] Figure 2 Schematic diagram of the cross-sectional structure of the blood oxygen saturation sensor.

[0026] Figure numerals: 1, deformation part; 2, extended straight section A; 3, extended straight section B; 4, light generating element; 5, light receiving element; 6, receiving slot A; 7, receiving slot B; 8, light-transmitting port A; 9, light-transmitting port B; 10, wire member; 11, wire slot; 12, limit block; 13, strip hole; 14, outer cover A; 15, outer cover B; 16, blind hole A; 17, blind hole B; 18, light-transmitting area A; 19, light-transmitting area B. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0028] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Example 1

[0031] A highly sensitive blood oxygen saturation sensor, such as Figure 1 As shown, it includes a deformable elastic member, the deformable elastic body includes a deformable portion 1 and two extended straight sections, the two extended straight sections are respectively: an extended straight section A2 and an extended straight section B3, the extended straight section A2 and the extended straight section B3 are respectively extended along straight lines from the two ends of the deformable portion 1, and also include a light generating element 4 and a light receiving element 5, a side-opening receiving groove A6 is provided on the side of the extended straight section A2 facing away from the extended straight section B3, and a side-opening receiving groove B7 is provided on the side of the extended straight section B3 facing away from the extended straight section A2;

[0032] Specifically, Figure 2 As shown, a light-transmitting port A8 communicating with the receiving slot A6 is provided on the side of the extended straight section A2 facing the extended straight section B3, and a light-transmitting port B9 communicating with the receiving slot B7 is provided on the side of the extended straight section B3 facing the extended straight section A2;

[0033] The light generating element 4 is bonded to the storage tank A6 through the side wall, and the light receiving element 5 is bonded to the storage tank B7 through the side wall. Its function is that, through the setting of the storage tank, the light generating element 4 and the light receiving element 5 can be bonded to the storage tank A6 and the storage tank B7 respectively through the side walls of the light generating element 4 and the light receiving element 5, which can effectively prevent the adhesive from blocking the light receiving element 5 and / or the light generating element 4 on the front side of the light tube or / and the photoelectric tube, thereby improving the sensitivity of the blood oxygen saturation sensor.

[0034] Specifically, Figure 2 As shown, the receiving groove A6 opens toward one side of the deformation portion 1 , and the receiving groove B7 opens toward one side of the deformation portion 1 .

[0035] Specifically, Figure 2 As shown, the bottom side of the light generating element 4 is bonded to the surface of the receiving groove A6 facing away from the deformation part 1, and the front side of the light generating element 4 faces the light transmission port A8, and the opening area of ​​the light transmission port A8 is larger than the area of ​​the front side of the light generating element 4;

[0036] The bottom side of the light receiving element 5 is bonded to the side of the receiving groove B7 facing away from the deformation part 1, and the front side of the light receiving element 5 faces the light-transmitting port B9, and the opening area of ​​the light-transmitting port B9 is larger than the area of ​​the front side of the light receiving element 5. Its function is that, through the setting of the light-transmitting port A8, the light generated by the light generating element 4 can be emitted toward the extended straight section B3; through the setting of the light-transmitting port B9, the light receiving element 5 can receive the light emitted by the light generating element 4; through the design of the area of ​​the light-transmitting port A8, the light generated by the light generating element 4 can be prevented from being blocked by the extended straight section A2, and the sensitivity of the blood oxygen saturation sensor can be improved by expanding the effective area of ​​the light generating element 4 emitting light; through the design of the area of ​​the light-transmitting port B9, the light received by the light receiving element 5 can be prevented from being blocked by the extended straight section B3, and the sensitivity of the blood oxygen saturation sensor can be improved by expanding the effective area of ​​the light receiving element 5 receiving light.

[0037] Specifically, Figure 2 As shown, it also includes a wire guide 10, and the pins on the light generating element 4 and the light receiving element 5 for welding with the wire guide 10 are arranged on the side facing the deformation part 1. The wire guide 10 is provided with a section connected to other backstage instruments (not shown in the figure). Its function is that by welding the wire guide 10 on the top surface of the light generating element 4 and the light receiving element 5, it is possible to avoid that when the light generating element 4 and the light receiving element 5 are respectively loaded into the receiving slot A6 and the receiving slot B7, the receiving slot A6 and the receiving slot B7 collide with the wire guide 10 originally welded on the back of the light generating element 4 and the light receiving element 5, thereby causing the wire guide 10 to fall off from the light generating element 4 or the light receiving element 5.

[0038] Specifically, Figure 1 As shown, the deformation part 1 is provided with a wire groove 11 for placing the wire guide 10, and the wire groove 11 extends along the outer contour of the deformation part 1. Its function is that the wire guide 10 can be protected by the arrangement of the wire groove 11.

[0039] Specifically, Figure 1 As shown, the wire groove 11 is provided with stop blocks 12 on both sides of the guide member. The stop blocks 12 can prevent the wire member 10 from shaking left and right in the wire groove 11, thereby causing the wire member 10 to separate from the welding part of the light generating element 4 or the light receiving element 5.

[0040] Specifically, Figure 1 As shown, there are multiple groups of limit blocks 12 evenly distributed along the extension direction of the wire groove 11. Its function is to enhance the structural strength of the deformation part 1 through the arrangement of multiple groups of limit blocks 12.

[0041] Specifically, Figure 1As shown, the deformable part 1 is provided with a bar hole 13 extending along the extending direction of the deformable part 1, and a wire groove 11 is provided on both sides of the bar hole 13. Its function is that through the arrangement of the bar hole 13, the deformation elastic potential energy can be reduced, the pressure on human tissue can be reduced, and at the same time, the overall weight can be reduced to improve the user experience.

[0042] Specifically, Figure 2 As shown, it also includes an outer cover, which includes an outer cover A14 with a blind hole A16, an outer cover B15 with a blind hole B17, the receiving slot A6 is inserted into the blind hole A16, and the receiving slot B7 is inserted into the blind hole B17. Its function is to prevent the outer cover from being pressed and contacted with the light generating element 4 or the light receiving element 5 when the outer cover is installed, thereby preventing the light generating element 4 or the light receiving element 5 from being damaged.

[0043] Specifically, Figure 2 As shown, the outer cover A14 is provided with a light-transmitting area A18 corresponding to the light-transmitting opening A8, and the outer cover B15 is provided with a light-transmitting area B19 corresponding to the light-transmitting opening B9, and the light-transmitting area A18 or / and the light-transmitting area B19 are through holes or thinned layers or infrared-transmitting layers or transparent layers. The purpose of the above-mentioned light-transmitting area settings is to effectively allow the generated or received light to pass through.

[0044] The above is only a preferred embodiment of the utility model and does not limit the utility model in any form. According to the technical essence of the utility model, within the spirit and principles of the utility model, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the utility model.

Claims

1. A blood oxygen saturation sensor with high sensitivity, comprising a deformable elastic member, the deformable elastic member comprising a deformable portion (1) and two extended straight sections, the two extended straight sections being: an extended straight section A (2) and an extended straight section B (3), the extended straight section A (2) and the extended straight section B (3) respectively extending from two ends of the deformable portion (1) along a straight line, and further comprising a light generating element (4) and a light receiving element (5), characterized in that: A side-opening receiving groove A (6) is provided on the side of the extended straight section A (2) facing away from the extended straight section B (3), and a side-opening receiving groove B (7) is provided on the side of the extended straight section B (3) facing away from the extended straight section A (2); A light-transmitting port A (8) connected to the receiving slot A (6) is provided on the side of the extended straight section A (2) facing the extended straight section B (3); a light-transmitting port B (9) connected to the receiving slot B (7) is provided on the side of the extended straight section B (3) facing the extended straight section A (2); The light generating element (4) is bonded in the material receiving tank A (6) through the side wall, and the light receiving element (5) is bonded in the material receiving tank B (7) through the side wall.

2. The blood oxygen saturation sensor with high sensitivity according to claim 1, characterized in that: The receiving groove A (6) opens toward one side of the deformation part (1), and the receiving groove B (7) opens toward one side of the deformation part (1).

3. The blood oxygen saturation sensor with high sensitivity according to claim 2, characterized in that: The bottom side of the light generating element (4) is bonded to a surface of the receiving groove A (6) that faces away from the deformation portion (1), the front side of the light generating element (4) faces the light transmission port A (8), and the opening area of ​​the light transmission port A (8) is larger than the area of ​​the front side of the light generating element (4); The bottom side of the light receiving element (5) is bonded to a surface of the receiving groove B (7) that faces away from the deformation portion (1), and the front side of the light receiving element (5) faces the light transmission port B (9). The opening area of ​​the light transmission port B (9) is larger than the area of ​​the front side of the light receiving element (5).

4. The blood oxygen saturation sensor with high sensitivity according to claim 3, characterized in that: It also includes a wire guide (10), and pins on the light generating element (4) and the light receiving element (5) for welding with the wire guide (10) are arranged on a surface facing the deformation part (1).

5. The blood oxygen saturation sensor with high sensitivity according to claim 4, characterized in that: The deformable portion (1) is provided with a wire groove (11) for accommodating a wire guide (10), and the wire groove (11) extends along the outer contour of the deformable portion (1).

6. The blood oxygen saturation sensor with high sensitivity according to claim 5, characterized in that: The wire groove (11) is provided with limit blocks (12) located on both sides of the guide member.

7. The blood oxygen saturation sensor with high sensitivity according to claim 6, characterized in that: The limit blocks (12) are evenly distributed in multiple groups along the extension direction of the wire groove (11).

8. The blood oxygen saturation sensor with high sensitivity according to claim 7, characterized in that: The deformable portion (1) is provided with a strip hole (13) extending along the extension direction of the deformable portion (1), and a wire groove (11) is respectively provided on both sides of the strip hole (13).

9. The blood oxygen saturation sensor with high sensitivity according to claim 1, characterized in that: The invention also includes an outer cover, which includes an outer cover A (14) having a blind hole A (16) and an outer cover B (15) having a blind hole B (17). The receiving slot A (6) is inserted into the blind hole A (16), and the receiving slot B (7) is inserted into the blind hole B (17).

10. The blood oxygen saturation sensor with high sensitivity according to claim 9, characterized in that: The outer cover A (14) is provided with a light-transmitting area A (18) corresponding to the light-transmitting opening A (8), and the outer cover B (15) is provided with a light-transmitting area B (19) corresponding to the light-transmitting opening B (9), and the light-transmitting area A (18) and / or the light-transmitting area B (19) are through holes, thinned layers, infrared-transmitting layers, or transparent layers.

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