Portable noninvasive anemia detection device

Abstract

The invention discloses a portable noninvasive anemia detection device, and relates to the technical field of medical equipment, and the portable noninvasive anemia detection device is characterized by comprising a finger detection cylinder, one end of the finger detection cylinder is open, the open end is provided with a sealing structure, and the side wall of the finger detection cylinder is symmetrically provided with a first limiting groove and a second limiting groove; the first limiting groove and the second limiting groove are both communicated with the inner cavity of the finger detection cylinder, a screw rod is rotationally connected in the first limiting groove, the screw rod penetrates out of the first limiting groove and then is connected with a motor, the motor is fixedly connected to the first limiting groove, the screw rod is movably connected with a fingertip positioning assembly, and the other end of the fingertip positioning assembly is movably connected to the second limiting groove; the fingertip positioning assembly is symmetrically provided with an infrared lamp and a light intensity sensor. By arranging the sealing structure and the fingertip positioning assembly, it is guaranteed that external environment light is fully isolated, meanwhile, the finger position of a patient is accurately positioned, and it is guaranteed that the hemoglobin content value and the blood oxygen value can be accurately detected through the fingers of different thicknesses and lengths.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and more specifically, to a portable non-invasive anemia detection device. Background Art

[0002] Anemia refers to a decrease in red blood cells in the human body's peripheral blood. When the red blood cells are below the lower limit of the normal range, the tissues and organs cannot be adequately supplied with oxygen, which will cause a series of symptoms and even lead to further organ disease. This clinical syndrome is collectively referred to as anemia. The global prevalence of anemia is as high as 24.8%, affecting the health of 1.62 billion people.

[0003] Patent CN207520136U discloses a portable non-invasive anemia detection device. The finger clamp is not light-proofed and is easily affected by ambient light during detection, resulting in inaccurate detection results.

[0004] Patent CN217186136U discloses a portable non-invasive anemia detection device, which obtains five sets of data by having the patient insert five fingers into the finger tester for simultaneous detection, and takes the average value to make the measurement data more accurate; by wrapping the fingers with air bags, comfort is ensured and each set of finger testers is opaque, further ensuring the accuracy of the measurement: Although this patent ensures that the detection results of the fingertip device are not affected by external light, the positions of the infrared lamps and light intensity sensors and the length and relative positions of each set of finger testers are not easy to adjust, making it difficult to fully adapt to the shapes of fingers of different age groups and sizes, and to ensure that the five sets of infrared lamps and light intensity sensors can be exactly aimed at the five fingers. Summary of the invention

[0005] The purpose of the present invention is to solve the above problems and provide a portable non-invasive anemia detection device, which can ensure that fingers of different thicknesses and lengths can accurately detect hemoglobin content and blood oxygen values.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a portable non-invasive anemia detection device, comprising a finger examination tube, one end of the finger examination tube is open, and a sealing structure is provided at the open end, the side wall of the finger examination tube is symmetrically provided with a first limit groove and a second limit groove, the first limit groove and the second limit groove are both connected to the inner cavity of the finger examination tube, a screw is rotatably connected in the first limit groove, the screw is connected to a motor after passing through the first limit groove, the motor is fixedly connected to the first limit groove, the screw is movably connected to a fingertip positioning assembly, the other end of the fingertip positioning assembly is movably connected to the second limit groove, and the fingertip positioning assembly is symmetrically provided with an infrared lamp and a light intensity sensor.

[0007] By adopting the above technical solution, when performing anemia detection, the patient first inserts the finger to be tested into the finger examination tube, and then fixes the finger to the central axis of the finger examination tube through the sealing structure. At the same time, the sealing structure can isolate the light from the external environment to avoid interference with the detection and affect the accuracy of the test result; since the finger lengths of patients of different age groups and different body shapes are different, and each person's five fingers are also different, after the finger is fixed, the screw is driven to rotate by the motor, and then the fingertip positioning assembly is driven to move to the patient's fingertip position to ensure that the finger is located between the infrared lamp and the light intensity sensor, and then the infrared lamp emits red light with a wavelength of 660nm and near-infrared light of 940nm, and the light intensity sensor on the lower side of the finger receives the light intensity signal remaining after absorption by human tissue. After the light intensity sensor obtains the information, it transmits it to the external processor through the data line, and processes the signal to obtain the human hemoglobin content and blood oxygen value with higher accuracy.

[0008] The present invention is further configured as follows: the sealing structure includes a flexible sealing layer, the flexible sealing layer is fixedly connected to the inner wall of the finger examination tube, a pressurized air chamber is formed between the flexible sealing layer and the finger examination tube, the pressurized air chamber is connected to an inflation tube, and the inflation tube is connected to an inflation pump after passing through the finger examination tube.

[0009] The present invention is further configured such that: the flexible sealing layer is made of elastic material.

[0010] By adopting the above technical solution, since the thickness of each person's fingers is different, especially the thickness of fingers between adults and children is quite different, the fingers are fixed by inflating air in the flexible structure, which can ensure that fingers of different thicknesses can be fixed on the central axis position of the finger examination tube, and can also ensure the airtightness and comfort of the patient.

[0011] The present invention is further configured as follows: the finger inspection tube is symmetrically provided with two transparent observation windows close to the first limiting groove.

[0012] By adopting the above technical solution, the specific position of the patient's finger inserted into the finger examination tube can be accurately observed through the transparent window to ensure that the fingertip positioning component accurately reaches the designated position.

[0013] The present invention is further configured as follows: a cover plate is movably sleeved on the outer side of the first limit groove, the cover plate includes a main body plate sliding close to the outer side of the first limit plate and two side wing plates sliding close to the outer wall of the finger inspection tube, the side wing plates are symmetrically connected to the two sides of the main body plate, and the length and width of the two side wing plates are both greater than the length and width of the transparent observation window; a T-shaped limit plate is fixedly provided on the top of the first limit groove, and the main body plate is provided with a T-shaped limit groove following the T-shaped limit plate.

[0014] By adopting the above technical solution, the cover plate can be slid to one end for a distance to expose the transparent window, so that the position of the fingertip positioning component and the fingertip can be observed for accurate positioning. After the fingertip positioning component is moved to the fingertip, the cover plate is reset so that the transparent window is covered and isolated from external ambient light, thereby preventing ambient light from affecting the detection results.

[0015] The present invention is further configured as follows: the fingertip positioning assembly includes a positioning ring that slides tightly against the inner wall of the finger inspection tube, the positioning ring is symmetrically provided with a first limit block that is slidably connected to the first limit groove and a second limit block that is slidably connected to the second limit groove, the first limit block and the second limit block are both fixedly connected to support plates, the infrared lamp and the light intensity sensor are respectively fixedly connected to the two support plates, and the infrared lamp is directly opposite to the light intensity sensor; the screw is threadedly connected to the first limit block.

[0016] By adopting the above technical solution, the movement of the motor drives the screw to rotate, which further drives the first limit block to move along the first limit groove, so that the positioning ring, support plate, infrared lamp and light intensity sensor, etc. move in the finger inspection tube. The motor is driven, which is convenient and fast. The fingertip positioning assembly can be driven to move by the forward and reverse rotation of the motor.

[0017] The present invention is further configured as follows: the fingertip positioning assembly further comprises a positioning plate fixedly connected to the positioning ring, the positioning plate is any one of a hollow spherical structure or a hollow conical structure, and the finger inspection tube is provided with a baffle plate conforming to the positioning plate.

[0018] By adopting the above technical solution, a positioning plate with either a spherical structure or a hollow conical structure is more conducive to positioning the patient's finger at the central axis position of the finger examination tube.

[0019] The present invention is further configured as follows: the positioning plate is a double-layer structure, including a force-bearing plate and a fixed plate, the fixed plate is fixedly connected to the positioning ring and is provided with a plurality of evenly distributed pressure sensors, the force-bearing plate is fixedly connected to the plurality of pressure sensors, and the plurality of pressure sensors are electrically connected to the motor.

[0020] By adopting the above technical solution, there is no need to manually observe the position of the positioning plate. When the positioning plate moves to the patient's fingertips and receives pressure from the patient's fingertips, the pressure sensor receives a signal and the motor stops running.

[0021] The present invention is further configured such that: the baffle is a transparent structure.

[0022] By adopting the above technical solution, before the patient undergoes anemia testing, the positioning plate is first moved to the baffle position. The baffle with a transparent structure can clearly see whether the positioning plate has been moved to the baffle position. Since the positioning ring runs close to the inner wall of the finger examination tube and the fixed plate is fixedly connected to the positioning ring, the light passing through the baffle will not enter the interior of the finger examination tube and affect the test results.

[0023] In summary, the present invention has the following beneficial effects:

[0024] The present invention fixes the finger on the central axis of the finger examination tube through a sealing structure, and at the same time the sealing structure can isolate the light of the external environment to avoid interference with the detection and affect the accuracy of the detection result; since the finger lengths of patients of different age groups and different body shapes are different, and the five fingers of each person are also different, after the finger is fixed, the screw is driven to rotate by a motor, and then the fingertip positioning component is driven to move to the patient's fingertip position to ensure that the finger is located between the infrared lamp and the light intensity sensor, and then the infrared lamp emits red light with a wavelength of 660nm and near-infrared light of 940nm, and the light intensity sensor on the lower side of the finger receives the light intensity signal remaining after absorption by human tissue. After the light intensity sensor obtains the information, it transmits it to the external processor through a data line, processes the signal, and obtains the human hemoglobin content value and blood oxygen value with higher accuracy.

[0025] The present invention fully considers that the thickness of each person's fingers is different, especially the thickness of fingers between adults and children is quite different. By inflating air in the flexible structure to fix the fingers, it can ensure that fingers of different thicknesses can be fixed on the central axis position of the finger examination tube, and can also ensure airtightness and patient comfort.

[0026] The present invention drives the screw to rotate through the movement of the motor, and further drives the first limit block to move along the first limit groove, so that the positioning ring, the support plate, the infrared lamp and the light intensity sensor move in the finger examination tube. The motor is driven, which is convenient and fast. The fingertip positioning assembly can be driven to move by the forward and reverse rotation of the motor. The positioning plate of any one of the spherical structure and the hollow conical structure is more conducive to positioning the patient's finger at the central axis position of the finger examination tube.

[0027] In order to ensure that the fingertip positioning component accurately reaches the designated position, the present invention provides two implementation methods. One method is to accurately observe the specific position of the patient's finger inserted into the finger examination tube through the transparent window. The cover plate can be slid to one end for a distance to expose the transparent window, so that the position of the fingertip positioning component and the fingertip can be observed for accurate positioning. After the fingertip positioning component is moved to the fingertip, the cover plate is reset to cover the transparent window, isolating the external ambient light, and preventing the ambient light from affecting the detection result.

[0028] Another way is to first move the positioning plate to the baffle position before the patient undergoes anemia testing. The transparent baffle can clearly see whether the positioning plate has been moved to the baffle position. Since the positioning ring runs close to the inner wall of the finger examination tube and the fixed plate is fixedly connected to the positioning ring, the light passing through the baffle will not enter the inside of the finger examination tube and affect the test results. When the positioning plate moves to the patient's fingertip and receives pressure from the patient's fingertip, the pressure sensor receives a signal and the motor stops running. This is more convenient and there is no need for manual observation of the position of the positioning plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is an overall structural diagram of the device in Example 1 of the present invention;

[0030] Figure 2 is an exploded view of the device in Example 1 of the present invention;

[0031] Figure 3 It is an enlarged view of point A in Example 1 of the present invention;

[0032] Figure 4 is a partial structural diagram of the cover plate in Example 1 of the present invention;

[0033] Figure 5 is a structural diagram of a fingertip positioning component in Embodiment 1 of the present invention;

[0034] Figure 6 The structural diagram of the sealing structure in Example 1 of the present invention

[0035] Figure 7 is a top view of the device in Example 1 of the present invention;

[0036] Figure 8 is an overall structural diagram of the device in Example 2 of the present invention;

[0037] Fig. 9 It is a structural diagram of the fingertip positioning component in Example 2 of the present invention.

[0038] In the figure: 1. finger inspection tube; 2. sealing structure; 21. flexible sealing layer; 22. pressurized air chamber; 23. inflation tube; 24. inflation pump; 3. first limit groove; 31. T-shaped limit plate; 4. second limit groove; 5. screw; 6. motor; 7. fingertip positioning assembly; 71. positioning ring; 72. first limit block; 73. second limit block; 74. support plate; 75. positioning plate; 751. force plate; 752. fixing plate; 753. pressure sensor; 8. infrared lamp; 9. light intensity sensor; 10. transparent observation window; 11. cover plate; 111. main body plate; 112. side wing plate; 113. T-shaped limit groove; 12. baffle. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution of the present invention will be further described in detail below in conjunction with the embodiments of the present invention and the accompanying drawings. Obviously, the described embodiments 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 creative work should fall within the scope of protection of the present invention.

[0040] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will be described in detail below in conjunction with the embodiments.

[0041] Embodiment 1:

[0042] like Figure 1-Figure 7 As shown, a portable non-invasive anemia detection device includes a finger examination tube 1, one end of the finger examination tube 1 is open, and a sealing structure 2 is provided at the open end, a first limiting groove 3 and a second limiting groove 4 are symmetrically provided on the side wall of the finger examination tube 1, the first limiting groove 3 and the second limiting groove 4 are both connected to the inner cavity of the finger examination tube 1, a screw 5 is rotatably connected in the first limiting groove 3, a motor 6 is connected to the rear axis of the screw 5 after passing through the first limiting groove 3, the motor 6 is fixedly connected to the first limiting groove 3, a fingertip positioning component 7 is movably connected to the screw 5, the other end of the fingertip positioning component 7 is movably connected to the second limiting groove 4, and the fingertip positioning component 7 is symmetrically provided with an infrared lamp 8 and a light intensity sensor 9.

[0043] The sealing structure 2 includes a flexible sealing layer 21, which is fixedly connected to the inner wall of the finger examination tube 1. A pressurized air chamber 22 is formed between the flexible sealing layer 21 and the finger examination tube 1. The pressurized air chamber 22 is connected to an air filling tube 23. The air filling tube 23 passes through the finger examination tube 1 and is connected to an air pump 24. The flexible sealing layer 21 is made of elastic material. Since the thickness of each person's fingers is different, especially the thickness of fingers between adults and children is quite different, by inflating air in the flexible structure to fix the fingers, it can ensure that fingers of different thicknesses can be fixed to the central axis position of the finger examination tube 1, and can also ensure airtightness and patient comfort.

[0044] The finger examination tube 1 is symmetrically provided with two transparent observation windows 10 near the first limiting groove 3. Through the transparent windows, the specific position of the patient's finger inserted into the finger examination tube 1 can be accurately observed to ensure that the fingertip positioning component 7 accurately reaches the designated position.

[0045] The outer side of the first limiting groove 3 is movably sleeved with a cover plate 11, which includes a main body plate 111 sliding closely against the outer side of the first limiting plate and two side wing plates 112 sliding closely against the outer wall of the finger inspection tube 1, the side wing plates 112 are symmetrically connected to the two sides of the main body plate 111, and the length and width of the two side wing plates 112 are both greater than the length and width of the transparent observation window 10; a T-shaped limiting plate 31 is fixedly provided on the top of the first limiting groove 3, and the main body plate 111 is provided with a T-shaped limiting groove 113 following the T-shaped limiting plate 31. The cover plate 11 can be slid to one end for a distance to expose the transparent window, so that the position of the fingertip positioning component 7 and the fingertip can be observed for accurate positioning. After the fingertip positioning component 7 is moved to the fingertip, the cover plate 11 is reset to shield the transparent window, isolate the external ambient light, and prevent the ambient light from affecting the detection result.

[0046] The fingertip positioning assembly 7 comprises a positioning ring 71 which slides against the inner wall of the finger inspection tube 1. The positioning ring 71 is symmetrically provided with a first limiting block 72 which is slidably connected to the first limiting groove 3 and a second limiting block 73 which is slidably connected to the second limiting groove 4. The first limiting block 72 and the second limiting block 73 are both fixedly connected to a support plate 74. The infrared lamp 8 and the light intensity sensor 9 are respectively fixedly connected to the two support plates 74, and the infrared lamp 8 is directly opposite to the light intensity sensor 9. The screw rod 5 is threadedly connected to the first limiting block 72. The movement of the motor 6 drives the screw rod 5 to rotate and further drives the first limiting block 72 to move along the first limiting groove 3, so that the positioning ring 71, the support plate 74, the infrared lamp 8 and the light intensity sensor 9 move in the finger inspection tube 1. The motor 6 drives the movement, which is convenient and quick. The forward and reverse rotation of the motor 6 can drive the fingertip positioning assembly 7 to move.

[0047] The fingertip positioning assembly 7 further includes a positioning plate 75 fixedly connected to the positioning ring 71, the positioning plate 75 is either a hollow spherical structure or a hollow conical structure, and the finger examination tube 1 is provided with a baffle 12 conforming to the positioning plate 75. The positioning plate 75 of either a spherical structure or a hollow conical structure is more conducive to positioning the patient's finger at the central axis position of the finger examination tube 1.

[0048] Embodiment 2:

[0049] like Figure 8 , Fig. 9As shown, a portable non-invasive anemia detection device is different from Example 1 in that: no transparent window and cover plate 11 are provided, and the positioning plate 75 is a double-layer structure, including a force-bearing plate 751 and a fixed plate 752, the fixed plate 752 is fixedly connected to the positioning ring 71, and is provided with a plurality of uniformly distributed pressure sensors 753, the force-bearing plate 751 is fixedly connected to the plurality of pressure sensors 753, and the plurality of pressure sensors 753 are electrically connected to the motor 6. The baffle 12 is a transparent structure. Before the patient undergoes anemia testing, the positioning plate 75 is first moved to the position of the baffle 12. The transparent structure of the baffle 12 can clearly see whether the positioning plate 75 has moved to the position of the baffle 12. Since the positioning ring 71 runs close to the inner wall of the finger examination tube 1, and the fixing plate 752 is fixedly connected to the positioning ring 71, the light passing through the baffle 12 will not enter the inside of the finger examination tube 1 and affect the test results. There is no need to manually observe the position of the positioning plate 75. When the positioning plate 75 moves to the patient's fingertip and receives pressure from the patient's fingertip, the pressure sensor 753 receives a signal and the motor 6 stops running.

[0050] Working principle: When conducting anemia detection, the patient first inserts the finger to be tested into the finger examination tube 1, and then fixes the finger to the central axis of the finger examination tube 1 through the sealing structure 2. At the same time, the sealing structure 2 can isolate the light from the external environment to avoid interference with the detection and affect the accuracy of the detection result; since the finger lengths of patients of different age groups and different body shapes are different, and each person's five fingers are also different, after the finger is fixed, the screw 5 is driven to rotate by the motor 6, and then the fingertip positioning component 7 is driven to move to the patient's fingertip position to ensure that the finger is located between the infrared lamp 8 and the light intensity sensor 9, and then the infrared lamp 8 emits red light with a wavelength of 660nm and near-infrared light of 940nm, and the light intensity sensor 9 on the lower side of the finger receives the light intensity signal remaining after absorption by human tissue. After obtaining the information, the light intensity sensor 9 transmits it to the external processor through the data line, processes the signal, and obtains the human hemoglobin content and blood oxygen value with higher accuracy.

[0051] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A portable non-invasive anemia detection device, characterized by: The invention comprises a finger examination tube (1), one end of which is open and a sealing structure (2) is provided at the open end; a first limiting groove (3) and a second limiting groove (4) are symmetrically provided on the side wall of the finger examination tube (1); the first limiting groove (3) and the second limiting groove (4) are both connected to the inner cavity of the finger examination tube (1); a screw rod (5) is rotatably connected in the first limiting groove (3); a motor (6) is connected to the screw rod (5) after the screw rod (5) passes through the first limiting groove (3); the motor (6) is fixedly connected to the first limiting groove (3); a fingertip positioning component (7) is movably connected to the screw rod (5); the other end of the fingertip positioning component (7) is movably connected to the second limiting groove (4); and the fingertip positioning component (7) is symmetrically provided with an infrared lamp (8) and a light intensity sensor (9).

2. A portable non-invasive anemia detection device according to claim 1, characterized in that: The sealing structure (2) comprises a flexible sealing layer (21), the flexible sealing layer (21) is fixedly connected to the inner wall of the finger examination tube (1), a pressurized air chamber (22) is formed between the flexible sealing layer (21) and the finger examination tube (1), the pressurized air chamber (22) is connected to an air filling tube (23), and the air filling tube (23) is connected to an air filling pump (24) after passing through the finger examination tube (1).

3. A portable non-invasive anemia detection device according to claim 2, characterized in that: The flexible sealing layer (21) is made of elastic material.

4. The portable non-invasive anemia detection device according to claim 1, characterized in that: The finger examination tube (1) is symmetrically provided with two transparent observation windows (10) close to the first limiting groove (3).

5. The portable non-invasive anemia detection device according to claim 4, characterized in that: A cover plate (11) is movably sleeved on the outer side of the first limiting groove (3), and the cover plate (11) comprises a main plate (111) sliding closely against the outer side of the first limiting plate and two side wing plates (112) sliding closely against the outer wall of the finger inspection tube (1), and the side wing plates (112) are symmetrically connected to the two sides of the main plate (111), and the length and width of the two side wing plates (112) are both greater than the length and width of the transparent observation window (10); a T-shaped limiting plate (31) is fixedly provided on the top of the first limiting groove (3), and the main plate (111) is provided with a T-shaped limiting groove (113) following the T-shaped limiting plate (31).

6. The portable non-invasive anemia detection device according to claim 1, characterized in that: The fingertip positioning assembly (7) comprises a positioning ring (71) which slides tightly against the inner wall of the finger inspection tube (1); the positioning ring (71) is symmetrically provided with a first limiting block (72) which is slidably connected to the first limiting groove (3) and a second limiting block (73) which is slidably connected to the second limiting groove (4); the first limiting block (72) and the second limiting block (73) are both fixedly connected to a support plate (74); the infrared lamp (8) and the light intensity sensor (9) are respectively fixedly connected to the two support plates (74); the screw rod (5) is threadedly connected to the first limiting block (72).

7. The portable non-invasive anemia detection device according to claim 6, characterized in that: The fingertip positioning assembly (7) further comprises a positioning plate (75) fixedly connected to the positioning ring (71); the positioning plate (75) is either a hollow spherical structure or a hollow conical structure; the finger inspection tube (1) is provided with a baffle (12) conforming to the positioning plate (75).

8. The portable non-invasive anemia detection device according to claim 7, characterized in that: The positioning plate (75) is a double-layer structure, comprising a force-bearing plate (751) and a fixed plate (752); the fixed plate (752) is fixedly connected to the positioning ring (71) and is provided with a plurality of evenly distributed pressure sensors (753); the force-bearing plate (751) is fixedly connected to the plurality of pressure sensors (753); and the plurality of pressure sensors (753) are electrically connected to the motor (6).

9. The portable non-invasive anemia detection device according to claim 8, characterized in that: The baffle (12) is a transparent structure.

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