Finger clamping type blood oxygen detector with adjustable tightness

Abstract

The utility model relates to the technical field of oximeter structures, and discloses a tightness-adjustable finger clip type blood oxygen detector, which comprises a first clip body and a second clip body, and is characterized in that concave cavities are arranged on adjacent sides of the first clip body and the second clip body, through holes are arranged at the left ends of the adjacent sides of the first clip body and the second clip body, and the through holes are communicated with the concave cavities. Air pipes are arranged in the through holes, one ends of the air pipes communicate with inflation nozzles, the inflation nozzles are fixed to the outer sides of the inflation bags, the other ends of the air pipes are fixedly connected to the output ends of the inflation valves, and the inflation bags are fixedly connected to the inner sides of the concave cavities. According to the utility model, air is inflated into the air pipe through the inflation valve, as the air is inflated into the air pipe, the inflated inflation bag can extrude the fingers and restrain the blood circulation of the fingers, and the first temperature sensor and the second temperature sensor are used for sensing the temperature change of the two ends of the extruded fingers, so that the inflation volume is adjusted in turn; and the adjustment of the tightness is also realized.

Description

Technical Field

[0001] The utility model relates to the technical field of oximeter structures, in particular to a finger-clip type oximeter with adjustable tightness. Background Art

[0002] Blood oxygen testing is a common medical examination method, mainly used to monitor the human body's blood oxygen saturation. Two light sources located in the visible red light spectrum and the infrared spectrum are alternately illuminated to the test area. The amount of light absorbed during these pulsations is related to the oxygen content in the blood. The microprocessor calculates the ratio of the two absorbed spectra and compares the result with the saturation value table stored in the memory to obtain the blood oxygen saturation.

[0003] However, since everyone's fingers are different in size and shape, existing finger-clip blood oximeters often cannot adapt well to different finger sizes, resulting in poor tightness and comfort of the device, and may also affect measurement accuracy. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a finger-clip type blood oxygen detector with adjustable tightness.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a finger-clip blood oxygen detector with adjustable tightness, comprising a first clamp and a second clamp, characterized in that: a concave cavity is provided on the adjacent side of the first clamp and the second clamp, a through hole is provided on the left end of the adjacent side of the first clamp and the second clamp, an air tube is provided inside the through hole, one end of the air tube is connected to the inflation nozzle, the inflation nozzle is fixed to the outside of the inflation bag, the other end of the air tube is fixedly connected to the output end of the inflation valve, the inflation bag is fixedly connected to the inside of the concave cavity, a second temperature sensor and a first temperature sensor are respectively provided on the front and back sides of the concave cavity, and a detector is provided on the middle and rear side of the concave cavity.

[0006] As a further description of the above technical solution:

[0007] The front sides of the first clamping body and the second clamping body are both provided with thickening components, and the middle parts of adjacent sides of the thickening components are both provided with openings.

[0008] As a further description of the above technical solution:

[0009] Limiting grooves are provided on both sides of the top end of the second clamping body, and limiting blocks are provided on both sides of the bottom end of the first clamping body, and the limiting grooves are engaged with the limiting blocks.

[0010] As a further description of the above technical solution:

[0011] A U-shaped plate is provided at one end of the first clamping body and the second clamping body that are away from the rear side, and the inner sides of the U-shaped plates are fixedly connected to the two ends of the straight rod.

[0012] As a further description of the above technical solution:

[0013] A torsion spring is provided on the outside of the straight rod, and both ends of the torsion spring are fixedly connected to the limiting bent rod. The corresponding ends of the first clamp body and the second clamp body on the opposite side are provided with limiting holes, and the limiting bent rods are respectively slidably connected to the inside of the limiting holes, and a sleeve is provided on the outside of the torsion spring.

[0014] As a further description of the above technical solution:

[0015] A light emitter and a detector are respectively provided at the middle and rear ends of adjacent sides of the first clamping body and the second clamping body, and the positions of the light emitter and the detector correspond to each other.

[0016] The utility model has the following beneficial effects:

[0017] 1. In the utility model, air is filled into the trachea through the inflation valve. As the air is filled, the inflated air bag squeezes the finger, inhibiting the blood circulation of the finger, thereby lowering the temperature of the finger. Therefore, the first temperature sensor and the second temperature sensor sense the temperature change at both ends of the squeezed finger, thereby adjusting the amount of air filled and the tightness of the bag. At the same time, the purpose of fixing the finger can also be controlled. The structure is simple and the effect is significant.

[0018] 2. In the present invention, the finger covers the detector. When blood flows through the sensor, the intensity of the infrared light emitted by the light emitter will be affected by the oxygen concentration in the blood. The oxygen measurement signal will change with the change of the oxygen concentration in the blood, and a specific value will be obtained at the same time, which is convenient for measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional diagram of a finger-clip type blood oxygen detector with adjustable tightness proposed by the present invention;

[0020] Figure 2 This is a rear view of a finger-clip type blood oxygen detector with adjustable tightness proposed by the present invention;

[0021] Figure 3 This is a detailed diagram of a finger-clip type blood oxygen detector with adjustable tightness proposed by the present invention;

[0022] Figure 4 This is a diagram showing the internal structure of the second clamp of a finger-clip type blood oxygen detector with adjustable tightness proposed by the present invention;

[0023] Figure 5This is a diagram showing the internal structure of the first clamp of a finger-clip type blood oxygen detector with adjustable tightness proposed by the present invention.

[0024] Legend:

[0025] 1. First clamp; 2. Second clamp; 3. U-shaped plate; 4. Limiting bent rod; 5. Limiting hole; 6. Straight rod; 7. Torsion spring; 8. Sleeve; 9. Thickening component; 10. Opening; 11. Limiting groove; 12. Limiting block; 13. First temperature sensor; 14. Second temperature sensor; 15. Inflatable bag; 16. Inflating nozzle; 17. Air pipe; 18. Inflating valve; 19. Through hole; 20. Concave cavity; 21. Detector; 22. Light emitter. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Reference Figure 1-5The utility model provides an embodiment: a finger-clip type blood oxygen detector with adjustable tightness, including a first clamp body 1 and a second clamp body 2, the adjacent sides of the first clamp body 1 and the second clamp body 2 are each provided with a cavity 20, the interior of the cavity 20 prevents fingers, the left end of the adjacent side of the second clamp body 2 of the first clamp body 1 is provided with a through hole 19, the interior of the through hole 19 is provided with an air tube 17, one end of the air tube 17 is connected to the inflation nozzle 16, the inflation nozzle 16 is fixed to the outside of the inflation bag 15, the other end of the air tube 17 is fixedly connected to the output end of the inflation valve 18, the inflation bag 15 is It is fixedly connected to the inner side of the concave cavity 20, and the front and rear sides of the concave cavity 20 are respectively provided with a second temperature sensor 14 and a first temperature sensor 13. A detector 21 is provided on the middle and rear side of the concave cavity 20. Air is filled into the trachea 17 through the inflation valve 18. As the air is filled, the inflated air bag 15 will squeeze the finger, inhibiting the blood circulation of the finger, thereby lowering the temperature of the finger. Therefore, the first temperature sensor 13 and the second temperature sensor 14 sense the temperature changes at both ends of the squeezed finger, and then adjust the amount of inflation in turn, thereby adjusting the tightness.

[0029] In this embodiment, a thickening component 9 is provided on the front side of the first clamp 1 and the second clamp 2, an opening 10 is provided in the middle of the adjacent side of the thickening component 9, limiting grooves 11 are provided on both sides of the top end of the second clamp 2, and limiting blocks 12 are provided on both sides of the bottom end of the first clamp 1, and the limiting grooves 11 are engaged with the limiting blocks 12.

[0030] The design of the limiting block 12 and the limiting groove 11 is to facilitate the engagement of the first clamping body 1 and the second clamping body 2 so that the first clamping body 1 and the second clamping body 2 are always kept at a center point.

[0031] In this embodiment, a U-shaped plate 3 is provided at one end of the first clamping body 1 and the second clamping body 2 away from the rear side, and the inner sides of the U-shaped plates 3 are fixedly connected to the two ends of the straight rod 6 .

[0032] The straight rod 6 limits the torsion spring 7 , and the U-shaped plate 3 fixes the straight rod 6 .

[0033] In this embodiment, a torsion spring 7 is provided on the outside of the straight rod 6, and both ends of the torsion spring 7 are fixedly connected to the limiting bent rod 4. Limiting holes 5 are provided on the corresponding ends of the first clamp body 1 and the second clamp body 2 on the opposite side. The limiting bent rod 4 is slidably connected to the inside of the limiting hole 5, and a sleeve 8 is provided on the outside of the torsion spring 7.

[0034] The torsion spring 7 drives the first clamping body 1 and the second clamping body 2 to move closer to each other to clamp the finger.

[0035] In this embodiment, a light emitter 22 and a detector 21 are respectively provided at the middle and rear ends of adjacent sides of the first clamping body 1 and the second clamping body 2 , and the positions of the light emitter 22 and the detector 21 correspond to each other.

[0036] Cover the detector 22 with your finger. When blood flows through the sensor, the intensity of the infrared light emitted by the light emitter 22 will be affected by the oxygen concentration in the blood. The oxygen measurement signal will change with the change of the oxygen concentration in the blood, and a specific value will also be obtained.

[0037] Working principle: First, use your hands to bend the rear ends of the first clamp 1 and the second clamp 2 so that the limit bending rod 4 is close to each other and the two ends of the torsion spring 7 are compressed. Then the patient inserts his finger into the opening 10 and determines whether the inflation valve 18 needs to be driven according to the size of the finger. When the finger is thinner, air is filled into the trachea 17 through the inflation valve 18. As the air is filled, the inflated air bag 15 will squeeze the finger, inhibiting the blood circulation of the finger, thereby lowering the temperature of the finger. Therefore, the first temperature sensor 13 and the second temperature sensor 14 sense the temperature changes at both ends of the squeezed finger, and then adjust the size of the inflation amount in turn, and also achieve the adjustment of the tightness. Then the finger covers the detector 22. When blood flows through the sensor, the intensity of the infrared light emitted by the light emitter 22 will feel the influence of the oxygen concentration in the blood. The oxygen measurement signal will change with the change of the oxygen concentration in the blood, and a specific value will also be obtained.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A finger-clip type blood oxygen detector with adjustable tightness, comprising a first clamp (1) and a second clamp (2), characterized in that: A concave cavity (20) is provided on the adjacent side of the first clamp (1) and the second clamp (2), a through hole (19) is provided on the left end of the adjacent side of the second clamp (2) of the first clamp (1), an air tube (17) is provided inside the through hole (19), one end of the air tube (17) is connected to the inflation nozzle (16), the inflation nozzle (16) is fixed on the outside of the inflation bag (15), the other end of the air tube (17) is fixedly connected to the output end of the inflation valve (18), the inflation bag (15) is fixedly connected to the inside of the concave cavity (20), the front and rear sides of the concave cavity (20) are respectively provided with a second temperature sensor (14) and a first temperature sensor (13), and the middle and rear side of the concave cavity (20) is provided with a detector (21).

2. The finger-clip type blood oxygen detector with adjustable tightness according to claim 1, characterized in that: The front sides of the first clamping body (1) and the second clamping body (2) are both provided with thickening components (9), and the middle parts of adjacent sides of the thickening components (9) are both provided with openings (10).

3. The finger-clip type blood oxygen detector with adjustable tightness according to claim 1, characterized in that: Limiting grooves (11) are provided on both sides of the top end of the second clamp (2), and limiting blocks (12) are provided on both sides of the bottom end of the first clamp (1), and the limiting grooves (11) are engaged with the limiting blocks (12).

4. The finger-clip type blood oxygen detector with adjustable tightness according to claim 1, characterized in that: A U-shaped plate (3) is provided at each end of the rear side of the second clamping body (2) of the first clamping body (1) and away from the other end, and the inner sides of the U-shaped plates (3) are fixedly connected to both ends of the straight rod (6).

5. The finger-clip type blood oxygen detector with adjustable tightness according to claim 4, characterized in that: The outer side of the straight rod (6) is provided with a torsion spring (7), and both ends of the torsion spring (7) are fixedly connected to the limiting bent rod (4). The corresponding ends of the first clamp body (1) and the second clamp body (2) on the opposite side are provided with limiting holes (5), and the limiting bent rod (4) is slidably connected to the inside of the limiting hole (5). The outer side of the torsion spring (7) is provided with a sleeve (8).

6. The finger-clip type blood oxygen detector with adjustable tightness according to claim 1, characterized in that: A light emitter (22) and a detector (21) are respectively provided at the middle and rear ends of adjacent sides of the first clamp (1) and the second clamp (2), and the positions of the light emitter (22) and the detector (21) correspond to each other.

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