An adjustable finger clip pulse oximeter

Abstract

The present invention discloses an adjustable finger clip type pulse oximeter, which relates to the technical field of oximeters and includes an upper clamping plate, a lower clamping plate, a fixing part, an upper moving part, a lower moving part and a driving mechanism. The upper clamping plate and the lower clamping plate are arranged opposite to each other, and the upper clamping plate and the lower clamping plate move away from or close to each other in the vertical direction to form a clamping area; the fixing part is provided with a vertical groove in the vertical direction; the upper moving part is slidably arranged inside the vertical groove and fixedly connected to the upper clamping plate; the lower moving part is slidably arranged inside the vertical groove and fixedly connected to the lower clamping plate; the driving mechanism includes a driving unit for driving the upper moving part and the lower moving part to move inside the vertical groove, a control unit for controlling the operation of the driving unit and an elastic unit for resetting the control unit; the present invention improves the clamping effect of the oximeter on the finger and realizes the separation of the upper clamping plate and the lower clamping plate by a single hand, which is beneficial to use.

Description

Technical Field

[0001] The present invention relates to the technical field of oximeters, and specifically to an adjustable finger clip type pulse oximeter. Background Art

[0002] A pulse oximeter is a device for detecting blood oxygen saturation, where blood oxygen saturation represents the change in the oxygen content in the blood. Generally, it is considered that the normal value of blood oxygen saturation should not be lower than 94%. Taking the portable finger clip type pulse oximeter as an example, some finger clip type pulse oximeters provide the acting force for rotational clamping by an internally installed reset spring clip, and the upper and lower shells rotate around a rotatable shaft body to clamp the finger to be measured.

[0003] However, for the above-mentioned traditional finger clip type pulse oximeter, the clamping measurement method with an obliquely opened clamping opening has a small contact area with the finger to be measured, and it is easy for the finger clip type pulse oximeter to fall off.

[0004] To solve the above problems, Chinese Patent No. CN221411208U discloses a finger clip type pulse oximeter, including a bottom shell, a top shell is arranged on the top of the bottom shell, sticking plates are fixedly arranged on the outer sides of the left and right ends of the bottom shell and the outer sides of the left and right ends of the top shell, strip-shaped bands are fixedly arranged on the outer sides of the sticking plates, a flexible finger band is fixedly arranged at one end of the strip-shaped band, a silica gel gasket is fixedly arranged on the inner wall of the flexible finger band, cylinder shells are fixedly arranged on the outer sides of the left and right ends of the bottom shell and the outer sides of the left and right ends of the top shell, spring dampers are fixedly arranged between the inner walls of the top and bottom ends of the cylinder shells, pressing plates are fixedly arranged at the top end of the bottom shell and the bottom end of the top shell, and a guiding rod is fixedly arranged at the bottom end of the pressing plate located at the top. A flexible clamping and anti-falling structure of the finger clip type pulse oximeter is formed by the bottom shell, the top shell, the sticking plates, the strip-shaped bands, the flexible finger band, the silica gel gasket, the cylinder shells, the spring dampers, the pressing plates and the guiding rod.

[0005] However, the above solution still has some defects in actual use. For example, when separating the lower clamping plate (bottom shell) from the upper clamping plate (top shell), both hands are needed to pull the lower clamping plate and the upper clamping plate respectively to separate them, which is very unsuitable for single-handed operation; in addition, when the finger clip type pulse oximeter is in use, the two side edges of the lower clamping plate and the upper clamping plate are not closed, and the outside light irradiates into the interior of the finger clip type pulse oximeter along the side edges, which will affect the normal use effect of the finger clip type pulse oximeter. Summary of the Invention

[0006] To solve the defects existing in the prior art, the present invention provides an adjustable finger clip type pulse oximeter.

[0007] To solve the above technical problems, the present invention provides the following technical solutions:

[0008] The present invention provides an adjustable finger clip - type pulse oximeter, comprising:

[0009] An upper clamping plate and a lower clamping plate arranged oppositely, the upper clamping plate and the lower clamping plate move away from or close to each other in the vertical direction to form a clamping area;

[0010] A fixing part, which is provided with a vertical groove in the vertical direction;

[0011] An upper moving part, which is slidably arranged inside the vertical groove and fixedly connected to the upper clamping plate;

[0012] A lower moving part, which is slidably arranged inside the vertical groove and fixedly connected to the lower clamping plate;

[0013] A driving mechanism, which includes a driving unit for driving the upper moving part and the lower moving part to move inside the vertical groove, a control unit for controlling the operation of the driving unit, and an elastic unit for resetting the control unit.

[0014] As a preferred technical solution of the present invention, by applying pressure to the control unit, the driving unit can be driven to work, thereby controlling the upper moving part and the upper clamping plate to move upward along the vertical groove, and controlling the lower moving part and the lower clamping plate to move downward along the vertical groove;

[0015] After stopping applying pressure, driven by the elastic unit, the upper moving part and the upper clamping plate will move downward, and the lower moving part and the lower clamping plate will move upward.

[0016] As a preferred technical solution of the present invention, the driving mechanism further includes an outer cylinder fixedly connected to the fixing part. The outer cylinder includes a first cavity for placing the driving unit and a second cavity for placing the control unit, and the first cavity and the second cavity are separated by a partition.

[0017] As a preferred technical solution of the present invention, the driving unit includes a rotating disk rotatably arranged inside the outer cylinder. Two groups of rotation grooves symmetrically arranged about the axis center are provided on the rotating disk, and sliding columns are fixedly arranged at positions corresponding to the rotation grooves on the upper moving part and the lower moving part respectively.

[0018] As a preferred technical solution of the present invention, a through - hole is provided at the central position of the rotating disk, and at least one group of limiting grooves is provided at a position corresponding to the outside of the through - hole on the rotating disk;

[0019] The control unit includes:

[0020] A telescopic rod, which is connected to the fixing part through an elastic unit and the telescopic rod is slidably arranged inside the through - hole;

[0021] The guiding part is spirally arranged on the outer side of the telescopic rod and is matched with the limiting groove;

[0022] The connecting rod, one end of the connecting rod is fixedly connected with the telescopic rod, and the other end extends out of the outer cylinder and is fixedly connected with the pressing handle.

[0023] As a preferred technical solution of the present invention, a support plate is fixedly arranged on the outer cylinder at a position close to the pressing handle.

[0024] As a preferred technical solution of the present invention, a sliding groove is opened at one end of the fixing part close to the upper clamping plate and the lower clamping plate, and sliders are respectively fixedly arranged at positions of the upper clamping plate and the lower clamping plate corresponding to the sliding groove.

[0025] As a preferred technical solution of the present invention, the upper clamping plate includes an upper plate body and upper convex platforms arranged at both ends of the upper plate body, and an upper clamping groove is formed between the two upper convex platforms;

[0026] The lower clamping plate includes a lower plate body and lower convex platforms arranged at both ends of the lower plate body, and a lower clamping groove is formed between the two lower convex platforms. The upper clamping groove and the lower clamping groove form a clamping area.

[0027] As a preferred technical solution of the present invention, a light-shielding mechanism is arranged between the lower plate body and the upper plate body, and the light-shielding mechanism includes:

[0028] A spring winding unit is arranged inside the lower plate body and is arranged at a position corresponding to the lower convex platform, and at least one group of the spring winding units is arranged at the lower end of the lower convex platform;

[0029] A fixing rod is fixedly arranged at the lower end of the upper convex platform;

[0030] A light-shielding cloth, one end of which is fixedly connected with the fixing rod, and the other end is fixedly connected with the end of the spring winding unit.

[0031] As a preferred technical solution of the present invention, a receiving groove is opened at the position of the lower convex platform corresponding to the light-shielding cloth.

[0032] The beneficial effects of the present invention are:

[0033] 1. In the present invention, by providing an upper moving part and a lower moving part in cooperation with a driving mechanism, applying pressure to the control unit can drive the driving unit to work, thereby controlling the upper moving part and the upper clamping plate to move upward along the vertical groove, and controlling the lower moving part and the lower clamping plate to move downward along the vertical groove, that is, controlling the upper clamping plate and the lower clamping plate to separate from each other. After the user puts the finger into the clamping area, stopping applying pressure to the control unit can clamp the finger between the upper clamping plate and the lower clamping plate, canceling the traditional pressing and clamping method for finger clamping. This setting improves the clamping effect of the blood oxygen meter on the finger and avoids the situation of the finger clip - type pulse oximeter falling off.

[0034] 2. In the present invention, by providing that the driving mechanism includes an outer cylinder, a pressing handle and a support plate, during use, the index finger and the middle finger are used to clamp the outer cylinder, and at the same time, the index finger and the middle finger are closely attached to the support plate, and then the thumb is used to push the pressing handle to realize the operation of the present invention, thereby realizing the separation of the upper clamping plate and the lower clamping plate with one hand, which is more convenient for use.

[0035] 3. In the present invention, by providing a light - shielding mechanism, when the finger is placed inside the clamping area, the upper clamping plate and the lower clamping plate will move away from each other. While moving away, the upper clamping plate will drive the light - shielding cloth to move, thereby blocking the two side edges of the lower clamping plate and the upper clamping plate. This setting can avoid the influence of external light on the blood oxygen meter and ensure that the blood oxygen meter can be used normally even in an environment with strong light. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0037] In the drawings:

[0038] Figure 1 is the schematic diagram of the overall structure of the present invention.

[0039] Figure 2 is the schematic diagram of the structure when the upper clamping plate and the lower clamping plate are closed.

[0040] Figure 3 is the schematic diagram of the structure when the upper clamping plate and the lower clamping plate are opened.

[0041] Figure 4 is the cross - sectional view schematic diagram of the outer cylinder.

[0042] Figure 5 is the exploded view schematic diagram of the present invention.

[0043] Figure 6 is the schematic diagram of the structure of the driving unit.

[0044] Figure 7 is the schematic diagram of the structure of the control unit.

[0045] Figure 8 It is a schematic structural diagram of a light-shielding mechanism.

[0046] Figure 9 It is Figure 8 an enlarged schematic diagram of the position A in

[0047] In the figure: 1. Upper clamping plate; 11. Upper plate body; 12. Upper convex platform; 2. Lower clamping plate; 21. Lower plate body; 22. Lower convex platform; 221. Accommodating groove; 3. Fixed part; 31. Vertical groove; 32. Sliding groove; 4. Upper moving part; 5. Lower moving part; 6. Driving mechanism; 61. Driving unit; 611. Rotating disc; 6111. Rotating groove; 6112. Through hole; 6113. Limiting groove; 612. Sliding column; 62. Control unit; 621. Telescopic rod; 622. Guide part; 623. Connecting rod; 624. Pressing handle; 63. Elastic unit; 64. Outer cylinder; 641. First cavity; 642. Second cavity; 643. Partition board; 644. Support plate; 7. Slide block; 8. Light-shielding mechanism; 81. Coil spring unit; 82. Fixed rod; 83. Light-shielding cloth. Specific embodiments

[0048] The following is a description of the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not intended to limit the present invention.

[0049] Embodiment 1

[0050] As Figures 1 - 5 shown, an adjustable finger clip type pulse oximeter includes an upper clamping plate 1, a lower clamping plate 2, a fixed part 3, an upper moving part 4, a lower moving part 5 and a driving mechanism 6. The upper clamping plate 1 and the lower clamping plate 2 are arranged oppositely, and the upper clamping plate 1 and the lower clamping plate 2 move away from or close to each other in the vertical direction to form a clamping area; the fixed part 3 is provided with a vertical groove 31 in the vertical direction; the upper moving part 4 is slidably arranged inside the vertical groove 31 and is fixedly connected to the upper clamping plate 1; the lower moving part 5 is slidably arranged inside the vertical groove 31 and is fixedly connected to the lower clamping plate 2; the driving mechanism 6 includes a driving unit 61 for driving the upper moving part 4 and the lower moving part 5 to move inside the vertical groove 31, a control unit 62 for controlling the operation of the driving unit 61, and an elastic unit 63 for resetting the control unit 62;

[0051] By applying pressure to the control unit 62, the driving unit 61 can be driven to work, thereby controlling the upper moving part 4 and the upper clamping plate 1 to move upward along the vertical groove 31, and controlling the lower moving part 5 and the lower clamping plate 2 to move downward along the vertical groove 31;

[0052] After the pressure application stops, driven by the elastic unit 63, the upper moving part 4 and the upper clamping plate 1 will move downward, and the lower moving part 5 and the lower clamping plate 2 will move upward.

[0053] Among them, by setting the upper moving part 4 and the lower moving part 5 to cooperate with the driving mechanism 6, applying pressure to the control unit 62 can drive the driving unit 61 to work, thereby controlling the upper moving part 4 and the upper clamping plate 1 to move upward along the vertical groove 31, and controlling the lower moving part 5 and the lower clamping plate 2 to move downward along the vertical groove 31, that is, controlling the upper clamping plate 1 and the lower clamping plate 2 to separate from each other. After the user puts the finger into the clamping area, then stopping applying pressure to the control unit 62 can clamp the finger between the upper clamping plate 1 and the lower clamping plate 2, canceling the traditional pressing and clamping method to clamp the finger. Such a setting is more conducive to the clamping effect of the finger and avoids the occurrence of the finger clip type pulse oximeter falling off.

[0054] It should be noted that an LED light source is fixedly arranged inside the upper clamping plate 1, usually including two wavelengths of red light (660nm) and infrared light (940nm). A photodetector is fixedly arranged inside the lower clamping plate 2. When the device is clipped on the fingertip, the LED light source emits red light and infrared light, and these lights penetrate the skin and blood vessels. When the blood is flowing, oxyhemoglobin and deoxyhemoglobin will absorb these two lights in different proportions. After the light is partially absorbed by passing through the blood vessels, it is received by the photodetector on the other side of the sensor. This process forms an optical signal. By analyzing the data received by the photodetector, the pulse oximeter can measure the change of the pulse wave and the degree of light absorption. The oxygen saturation and pulse frequency of the blood will be displayed in real time on the display screen of the device, enabling the user to quickly obtain their own health data.

[0055] Further, as Figure 4 shown, the driving mechanism 6 further includes an outer cylinder 64 fixedly connected to the fixing part 3. The outer cylinder 64 includes a first cavity 641 for placing the driving unit 61 and a second cavity 642 for placing the control unit 62. The first cavity 641 and the second cavity 642 are separated by a partition 643.

[0056] Among them, the setting of the outer cylinder 64 is used for storing the driving unit 61 and the control unit 62 on the one hand. On the other hand, the outer cylinder 64 is mainly used for fixedly connecting with the fixing part 3, which can provide good support for the fixing part 3, and further ensure that the upper moving part 4 and the lower moving part 5 can move stably on the fixing part 3.

[0057] Further, as Figures 5 - 6As shown, the driving unit 61 includes a rotating disk 611 rotatably disposed inside the outer cylinder 64. Further, the rotating disk 611 is rotatably connected to the partition 643. Two sets of rotation grooves 6111 that are axially centrosymmetric are formed on the rotating disk 611. The upper moving part 4 and the lower moving part 5 are respectively fixedly provided with sliding columns 612 at positions corresponding to the rotation grooves 6111.

[0058] After the rotating disk 611 rotates on the partition 643, driven by the sliding columns 612, the upper moving part 4 and the lower moving part 5 move away from or close to each other, thereby driving the upper clamping plate 1 and the lower clamping plate 2 to move away from or close to each other.

[0059] Further, as Figures 6 - 7 shown, a through hole 6112 is formed at the central position of the rotating disk 611, and at least one set of limiting grooves 6113 is formed at a position corresponding to the outside of the through hole 6112 on the rotating disk 611;

[0060] The control unit 62 includes a telescopic rod 621, a guiding part 622, a connecting rod 623 and a pressing handle 624. The telescopic rod 621 is connected to the fixing part 3 through an elastic unit 63 and the telescopic rod 621 is slidably disposed inside the through hole 6112; the guiding part 622 is spirally disposed outside the telescopic rod 621 and is matched with the limiting groove 6113; one end of the connecting rod 623 is fixedly connected to the telescopic rod 621, and the other end extends out of the outer cylinder 64 and is fixedly connected to the pressing handle 624;

[0061] A support plate 644 is fixedly provided on the outer cylinder 64 at a position close to the pressing handle 624.

[0062] Among them, by providing the driving mechanism 6 including the outer cylinder 64, the pressing handle 624 and the support plate 644, during use, the outer cylinder 64 is clamped by the index finger and the middle finger, and at the same time, the index finger and the middle finger are closely attached to the support plate 644, and then the pressing handle 624 is pushed by the thumb to realize the operation of the present invention, thereby realizing the separation of the upper clamping plate 1 and the lower clamping plate 2 with one hand, which is more convenient for use;

[0063] When the product is in the initial position, the end faces of the upper clamping plate 1 and the lower clamping plate 2 are arranged in contact. When in use, pushing the pressing handle 624 drives the telescopic rod 621 to move inside the through hole 6112 through the connecting rod 623 and squeeze the elastic unit 63. The guiding part 622 arranged on the outer side of the telescopic rod 621 will cooperate with the limiting groove 6113 to drive the rotating disc 611 to rotate, and finally drive the upper clamping plate 1 and the lower clamping plate 2 to separate. After the thumb is released and no longer applies pressure to the pressing handle 624, the elastic unit 63 resets to drive the telescopic rod 621 to move in the reverse direction and drive the rotating disc 611 to rotate in the reverse direction, and finally drive the upper clamping plate 1 and the lower clamping plate 2 to approach each other again.

[0064] It should be noted that the number of the guiding parts 622 and the limiting grooves 6113 is the same and both are set to two groups. When the telescopic rod 621 slides inside the through hole 6112, the arrangement of the two groups of guiding parts 622 can stably drive the rotating disc 611 to rotate.

[0065] Further, as Figure 5 shown, a sliding groove 32 is formed at one end of the fixing part 3 close to the upper clamping plate 1 and the lower clamping plate 2, and sliding blocks 7 are respectively and fixedly arranged at the positions of the upper clamping plate 1 and the lower clamping plate 2 corresponding to the sliding groove 32.

[0066] During the movement of the upper clamping plate 1 and the lower clamping plate 2, by arranging the sliding blocks 7 to slide inside the sliding groove 32, the sliding stability of the upper clamping plate 1 and the lower clamping plate 2 can be further improved, ensuring that the upper clamping plate 1 and the lower clamping plate 2 will not deflect relative to the fixing part 3.

[0067] Embodiment 2

[0068] Among them, the same or corresponding components as those in Embodiment 1 adopt the corresponding reference numerals in Embodiment 1. For the sake of simplicity, only the differences from Embodiment 1 will be described below. The difference between this Embodiment 2 and Embodiment 1 is that:

[0069] Further, as Figure 8 shown, the upper clamping plate 1 includes an upper plate body 11 and upper convex platforms 12 arranged at both ends of the upper plate body 11, and an upper clamping groove is formed between the two upper convex platforms 12;

[0070] The lower clamping plate 2 includes a lower plate body 21 and lower convex platforms 22 arranged at both ends of the lower plate body 21, and a lower clamping groove is formed between the two lower convex platforms 22. The upper clamping groove and the lower clamping groove form a clamping area.

[0071] Further, as Figures 8 - 9As shown, a light-shielding mechanism 8 is provided between the lower plate body 21 and the upper plate body 11. The light-shielding mechanism 8 includes a torsion spring unit 81, a fixed rod 82, and a light-shielding cloth 83. The torsion spring unit 81 is arranged inside the lower plate body 21 and corresponding to the position of the lower boss 22, and at least one group of the torsion spring unit 81 is provided at the lower end of the lower boss 22; the fixed rod 82 is fixedly arranged at the lower end of the upper boss 12; one end of the light-shielding cloth 83 is fixedly connected to the fixed rod 82, and the other end is fixedly connected to the end of the torsion spring unit 81.

[0072] Among them, by setting the light-shielding mechanism 8, when a finger is placed inside the clamping area, the upper clamping plate 1 and the lower clamping plate 2 will move away from each other. While moving away, the fixed rod 82 in the upper clamping plate 1 and the torsion spring unit 81 in the lower clamping plate 2 cooperate with each other to drive the light-shielding cloth 83 to unfold, and the two side edges of the lower clamping plate 2 and the upper clamping plate 1 are blocked. This setting can avoid the influence of external light on the blood oxygen meter and ensure that the blood oxygen meter can be used normally even in an environment with strong light;

[0073] When the upper clamping plate 1 and the lower clamping plate 2 approach each other again, the torsion spring unit 81 will drive the light-shielding cloth 83 to contract to ensure that the light-shielding cloth 83 will not be stacked between the lower clamping plate 2 and the upper clamping plate 1.

[0074] It should be noted that a receiving groove 221 is formed in the lower boss 22 corresponding to the position of the light-shielding cloth 83, and the light-shielding cloth 83 can pass through the receiving groove 221 and be connected to the fixed rod 82;

[0075] Preferably, two groups of the torsion spring unit 81 are provided in each lower boss 22.

[0076] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adjustable finger-clip pulse oximeter, characterized in that: include: An upper clamping plate (1) and a lower clamping plate (2) arranged opposite to each other, wherein the upper clamping plate (1) and the lower clamping plate (2) are moved away from or approached to each other in a vertical direction to form a clamping area; A fixing portion (3) having a vertical groove (31) formed along the vertical direction; An upper movable portion (4) is slidably disposed inside the vertical groove (31) and is fixedly connected to the upper clamping plate (1); A lower movable portion (5) is slidably disposed inside the vertical groove (31) and is fixedly connected to the lower clamping plate (2); a driving mechanism (6), comprising a driving unit (61) for driving the upper moving part (4) and the lower moving part (5) to move inside the vertical slot (31), a control unit (62) for controlling the operation of the driving unit (61), and an elastic unit (63) for resetting the control unit (62); A through hole (6112) is provided at the center of the rotating disk (611), and at least one set of limiting grooves (6113) is provided at a position of the rotating disk (611) corresponding to the outside of the through hole (6112); The control unit (62) comprises: A telescopic rod (621) connected to the fixing portion (3) via an elastic unit (63), and the telescopic rod (621) is slidably disposed inside the through hole (6112); A guide portion (622) is spirally arranged on the outside of the telescopic rod (621) and cooperates with the limiting groove (6113); A connecting rod (623), one end of which is fixedly connected to the telescopic rod (621), and the other end of which extends out of the outer cylinder (64) and is fixedly connected to the pressing handle (624); A support plate (644) is fixedly provided on the outer cylinder (64) at a position close to the pressing handle (624).

2. An adjustable finger-clip pulse oximeter according to claim 1, characterized in that: By applying pressure to the control unit (62), the driving unit (61) can be driven to work, thereby controlling the upper moving part (4) and the upper clamping plate (1) to move upward along the vertical groove (31), and controlling the lower moving part (5) and the lower clamping plate (2) to move downward along the vertical groove (31); After the application of pressure stops, driven by the elastic unit (63), the upper movable portion (4) and the upper clamping plate (1) will move downward, and the lower movable portion (5) and the lower clamping plate (2) will move upward.

3. The adjustable finger-clip pulse oximeter according to claim 1, characterized in that: The driving mechanism (6) further comprises an outer cylinder (64) fixedly connected to the fixing portion (3); the outer cylinder (64) comprises a first cavity (641) in which the driving unit (61) is placed, and a second cavity (642) for placing a control unit (62); the first cavity (641) and the second cavity (642) are separated by a partition (643).

4. The adjustable finger-clip pulse oximeter according to claim 3, characterized in that: The driving unit (61) comprises a rotating disk (611) rotatably arranged inside the outer cylinder (64), the rotating disk (611) being provided with two groups of rotating grooves (6111) symmetrically arranged about the axis, and the upper moving part (4) and the lower moving part (5) are respectively fixedly provided with sliding columns (612) at positions corresponding to the rotating grooves (6111).

5. The adjustable finger-clip pulse oximeter according to claim 1, characterized in that: A sliding groove (32) is provided at one end of the fixing portion (3) close to the upper clamping plate (1) and the lower clamping plate (2), and sliding blocks (7) are respectively fixedly provided at positions of the upper clamping plate (1) and the lower clamping plate (2) corresponding to the sliding groove (32).

6. The adjustable finger-clip pulse oximeter according to claim 1, characterized in that: The upper clamping plate (1) comprises an upper plate body (11) and upper bosses (12) arranged at two ends of the upper plate body (11), and an upper clamping groove is formed between the two upper bosses (12); The lower clamping plate (2) comprises a lower plate body (21) and lower bosses (22) arranged at two ends of the lower plate body (21); a lower clamping groove is formed between the two lower bosses (22); and the upper clamping groove and the lower clamping groove form a clamping area.

7. An adjustable finger-clip pulse oximeter according to claim 6, characterized in that: A shading mechanism (8) is provided between the lower plate body (21) and the upper plate body (11), and the shading mechanism (8) comprises: A coil spring unit (81) is arranged inside the lower plate body (21) and at a position corresponding to the lower boss (22), and at least one group of the coil spring units (81) is arranged at the lower end of the lower boss (22); A fixing rod (82) fixedly disposed on the lower end of the upper boss (12); A shading cloth (83) having one end fixedly connected to the fixing rod (82) and the other end fixedly connected to the end of the coil spring unit (81).

8. The adjustable finger-clip pulse oximeter according to claim 7, characterized in that: The lower boss (22) is provided with a receiving groove (221) at a position corresponding to the shading cloth (83).

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