Finger detection device

Abstract

The application relates to the technical field of finger detection, and discloses a finger detection device, which comprises a shell, a finger insertion hole arranged on the shell, a finger wrapping structure, at least one channel arranged on the finger wrapping structure, a wrapping cavity, the wrapping cavity being in communication with the finger insertion hole and the channel, a driving assembly, a mobile probe, and a control device connected with the driving assembly. After a finger of a person to be detected is inserted into the finger wrapping structure, the control device controls the mobile probe to scan the finger of the person to be detected through the channel, and controls the driving assembly to drive the mobile probe to move to a preset detection area of the finger for detection. After the finger of the person to be detected is inserted into the finger wrapping structure, the control device controls the mobile probe to scan the finger of the person to be detected, and controls the driving assembly to drive the mobile probe. Regardless of the size of the finger of the person to be detected, the control device can control the driving assembly to drive the mobile probe to move to the preset detection area of the finger for detection, so as to guarantee the accuracy of the detection result.

Description

Technical Field

[0001] This invention relates to the field of finger detection technology, and more specifically to a finger detection device. Background Technology

[0002] In recent years, as people have become increasingly concerned about their health, portable pulse oximeters that can check blood oxygen concentration and heart rate have become more and more popular.

[0003] Currently available pulse oximeters all work by using an upper and lower cover to clamp the user's finger for scanning. However, because the shape of the area clamped by the upper and lower covers and the fixed position of the detection probe affect the accuracy of the results, they cannot be adjusted for people with different finger sizes. For different users, the detection probe may detect different areas of the finger, which can affect the accuracy of the test results and potentially lead to lower accuracy. Summary of the Invention

[0004] In view of this, the present invention provides a finger detection sensing device to solve the problem of low detection accuracy that may occur in existing blood oxygen detectors.

[0005] This invention provides a finger detection device, comprising:

[0006] A housing, wherein the housing is provided with a finger insertion hole;

[0007] A finger-wrapping structure is disposed within the housing. The finger-wrapping structure has at least one channel and a wrapping cavity. The wrapping cavity communicates with the finger insertion hole and the channel, and is suitable for wrapping the finger of the person to be tested.

[0008] The drive assembly is located within the housing;

[0009] A movable probe is housed within the housing and connected to the drive assembly;

[0010] A control device, located within the housing and connected to the drive assembly, is adapted to control the moving probe to scan the finger of the person being tested through the channel after the finger of the person being tested is inserted into the finger-wrapping structure, and to control the drive assembly to drive the moving probe to move to a preset detection area of ​​the finger for detection.

[0011] Beneficial effects: By setting up a moving probe, a driving component, and a control device, after the finger of the person being tested is inserted into the finger wrapping structure, the control device can control the moving probe to scan the finger of the person being tested through the channel on the finger wrapping structure, and control the driving component to move the moving probe. In this way, regardless of the size of the finger of the person being tested, the control device can control the driving component to move the moving probe to the preset detection area of ​​the finger for detection, so as to ensure the accuracy of the detection results.

[0012] In one optional implementation, the finger detection device includes:

[0013] A movable frame is connected to the driving component, and the movable probe is provided on the movable frame.

[0014] Beneficial effect: By setting up a movable frame, the movable probe can be placed on the movable frame, which facilitates the movement of the movable probe.

[0015] In one alternative implementation, the movable frame is fitted over the outside of the finger wrapping structure.

[0016] Beneficial effects: By fitting the movable frame over the outside of the finger wrapping structure, the movable frame can move relative to the extension direction of the finger wrapping structure. Since the subject's finger is placed inside the finger wrapping structure, the movable frame can move more easily to any position of the subject's finger.

[0017] In one optional implementation, the driving component includes:

[0018] Drive mechanism;

[0019] The transmission mechanism is connected at one end to the drive mechanism and at the other end to the movable frame.

[0020] In one optional implementation, the finger detection device includes:

[0021] At least one guide rail is disposed within the housing, and the movable frame moves along the guide rail.

[0022] Beneficial effect: By setting guide rails, the movement of the moving frame becomes more stable.

[0023] In one alternative embodiment, the movable frame is provided with at least two through holes, one of which is through which the transmission mechanism passes, and the other through holes are through which the guide rail passes.

[0024] Beneficial effects: By setting through holes in the moving frame, and inserting the transmission mechanism and guide rails through the through holes, the structure of the finger detection device becomes more compact and smaller in size.

[0025] In one optional implementation, the finger detection device includes:

[0026] A sensor, connected to the control device, is adapted to detect whether the finger of the subject has entered the finger wrapping structure and transmit the detection information to the control device.

[0027] Beneficial effects: By setting up sensors, it is possible to automatically detect whether the finger of the person being tested has entered the finger wrapping structure, so that the control device can automatically control the movement of the moving frame.

[0028] In one alternative embodiment, the sensor is a photoelectric sensor, and the channels are respectively provided on opposite sides of the finger wrapping structure.

[0029] In one optional embodiment, the photoelectric sensor includes:

[0030] The first sensor, located on one side of the finger-wrapping structure, is adapted to emit light;

[0031] The second sensor, located on the other side of the finger-wrapping structure, is adapted to receive light emitted by the first sensor through the channel.

[0032] Beneficial effects: Since photoelectric sensors need to emit light, by setting channels on opposite sides of the finger wrapping structure, the light emitted by the first sensor can be transmitted to the second sensor through the channels. If no person is being detected, the second sensor can receive the light emitted by the first sensor. If the person's finger is inserted into the finger wrapping structure, the light emitted by the first sensor is blocked by the person's finger, and the second sensor cannot receive the light emitted by the first sensor. This allows for automatic determination of whether the person's finger is inserted into the finger wrapping structure.

[0033] In one alternative implementation, the sensor is mounted on the movable frame.

[0034] Beneficial effects: By mounting the sensor on the movable frame, the sensor can be moved along with the frame, allowing the sensor to detect the entire area of ​​the finger-wrapped structure and more accurately determine whether a finger of the person being tested has been inserted into the finger-wrapped structure.

[0035] In one alternative implementation, the finger wrapping structure is an airbag;

[0036] The finger detection device includes an air pump housed within a housing. The air pump is connected to the air bladder and is adapted to inflate the air bladder.

[0037] Beneficial effects: By setting the finger wrapping structure as an airbag and installing an air pump inside the shell, the amount of air pumped into the airbag can vary depending on the different finger sizes of the test subjects, so that the airbag can better adapt to the fingers of different test subjects.

[0038] In one alternative implementation, at least the portion of the airbag that contacts the finger of the person being tested is made of a flexible material.

[0039] Beneficial effects: By making the part of the airbag that at least contacts the finger of the person being tested a flexible material, when the air pump inflates the airbag, the flexible material can be expanded by the air pressure to wrap and cover the finger of the person being tested. Since the part of the airbag that contacts the finger is made of flexible material, the airbag can fit tightly to every part of the skin and joints of the finger. This can completely isolate the light scattering of the moving probe and the influence of external light, further ensuring the accuracy of the test.

[0040] In one alternative embodiment, the finger detection device includes a pressure sensor connected to the air pump. The pressure sensor is disposed on the air bladder and is adapted to detect the pressure of the air bladder and transmit it to the air pump. The air pump adjusts the inflation force of the air bladder according to the pressure.

[0041] Beneficial effects: By setting up a pressure sensor, the pressure of the airbag can be detected. The air pump can automatically control the inflation force of the airbag according to the different finger sizes of different subjects, so as to maximize the testing comfort of the subjects and improve the user experience.

[0042] In one alternative embodiment, the housing includes:

[0043] Top cover, on which a display device is provided;

[0044] The base is located below the top cover;

[0045] A bracket is fixedly disposed between the top cover and the base. A first receiving cavity is provided between the bracket and the top cover, and a second receiving cavity is provided between the bracket and the base. The control device is disposed in the first receiving cavity, and the finger wrapping structure and the moving frame are disposed in the second receiving cavity.

[0046] Beneficial effects: By designing the housing as a top cover, base, and bracket, the space of the housing can be used more efficiently, making the components of the finger detection device more compact, reducing the size of the finger detection device, and enhancing its portability.

[0047] In one alternative embodiment, the bracket has an opening, the top of the movable frame has a brush, and the movable probe is electrically connected to the control device through the brush and moves along the opening.

[0048] Beneficial effects: Since the control device is located at the top of the bracket and the movable probe is located at the bottom of the bracket, the opening on the bracket facilitates the electrical connection between the movable probe and the control device, allowing the control device to easily power the movable probe without affecting its movement.

[0049] In one optional implementation, the finger detection device is a blood oxygen detector;

[0050] And / or, the preset detection area of ​​the finger is the area between the fingernail and the joint closest to the fingernail.

[0051] Beneficial effects: By setting the preset detection area of ​​the finger to the area between the fingernail and the joint closest to the fingernail, the detection area of ​​the moving probe can be kept fixed regardless of the different finger sizes of different subjects, making the detection results more accurate. Attached Figure Description

[0052] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0053] Figure 1 This is a front view of a finger detection device according to an embodiment of the present invention;

[0054] Figure 2 An exploded view of a finger detection device;

[0055] Figure 3 A schematic diagram of the first state of assembling the movable frame for the finger-wrapping structure;

[0056] Figure 4 A schematic diagram of the second state of assembling the movable frame for the finger-wrapping structure;

[0057] Figure 5 This is a schematic diagram of the support structure for the finger detection device;

[0058] Figure 6 This is a cross-sectional view of a finger detection device;

[0059] Figure 7 This is a schematic diagram of the working process of a finger detection device.

[0060] Explanation of reference numerals in the attached figures:

[0061] 1-Housing; 101-Finger insertion hole; 102-Top cover; 1021-Display window; 103-Bracket; 1031-Opening; 104-Base; 2-Finger wrapping structure; 201-Channel; 3-Moving probe; 4-Control device; 5-Moving frame; 501-Brush; 6-Motor; 7-Lead screw; 8-Guide rail; 9-Second sensor. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0063] The following is combined with Figures 1 to 7 The following describes embodiments of the present invention.

[0064] According to an embodiment of the present invention, a finger detection device is provided, comprising: a housing 1 having a finger insertion hole 101 thereon; a finger wrapping structure 2 disposed within the housing 1, having at least one channel 201 thereon, the finger wrapping structure 2 having a wrapping cavity communicating with the finger insertion hole 101 and the channel 201, suitable for wrapping the finger of the person to be detected; a driving assembly disposed within the housing 1; a moving probe 3 disposed within the housing 1 and connected to the driving assembly; and a control device 4 disposed within the housing 1 and connected to the driving assembly, suitable for controlling the moving probe 3 to scan the finger of the person to be detected through the channel 201 after the finger of the person to be detected is inserted into the finger wrapping structure 2, and controlling the driving assembly to drive the moving probe 3 to move to a preset detection area of ​​the finger for detection.

[0065] By setting up a moving probe 3, a driving component, and a control device 4, after the finger of the person to be tested is inserted into the finger wrapping structure 2, the control device 4 can control the moving probe 3 to scan the finger of the person to be tested through the channel 201 on the finger wrapping structure 2, and control the driving component to drive the moving probe 3 to move. In this way, regardless of the size of the finger of the person to be tested, the control device 4 can control the driving component to drive the moving probe 3 to move to the preset detection area of ​​the finger for detection, so as to ensure the accuracy of the detection results.

[0066] The finger detection device in this embodiment includes a movable frame 5 connected to a drive assembly, and a movable probe 3 mounted on the movable frame 5. By setting the movable frame 5, the movable probe 3 is mounted on the movable frame 5, facilitating the movement of the movable probe 3. Alternatively, the movable frame 5 can be omitted, and the drive assembly can be directly connected to the movable probe 3, directly driving the movable probe 3 to move. In this case, the drive assembly can be configured to include grippers, which hold the movable probe 3, thereby driving the movable probe 3 to move.

[0067] like Figure 3 and Figure 4 As shown, the movable frame 5 is fitted onto the outside of the finger-wrapping structure 2, and two channels 201 are provided, one at the top and one at the bottom of the finger-wrapping structure 2. In this case, the size of the movable frame 5 is slightly larger than the size of the finger-wrapping structure 2 to allow the movable frame 5 to slide relative to the finger-wrapping structure 2. By fitting the movable frame 5 onto the outside of the finger-wrapping structure 2, the movable frame 5 can move relative to the extending direction of the finger-wrapping structure 2. Since the finger of the person being tested is placed inside the finger-wrapping structure 2, the movable frame 5 can move more easily to any position of the finger. As an alternative implementation, the movable frame 5 can also be located on one side of the finger-wrapping structure 2, in which case the channel 201 is also located on the side of the finger-wrapping structure 2. As an alternative implementation, only one channel 201 can be provided, such as one located at the top of the finger-wrapping structure 2.

[0068] The drive assembly includes: a drive mechanism; and a transmission mechanism, one end of which is connected to the drive mechanism and the other end of which is connected to the moving frame 5. Specifically, the drive mechanism is a motor 6, and the transmission mechanism is a lead screw 7. As an alternative implementation, the drive assembly may only include the linear motor 6, without the transmission mechanism, and the moving frame 5 may be moved solely by the linear motor 6.

[0069] To ensure smoother movement of the movable frame 5, the finger detection device includes three guide rails 8 housed within the housing 1, along which the movable frame 5 moves. Of course, the number of guide rails 8 can be adjusted according to actual needs; no further restrictions are imposed here.

[0070] like Figure 4As shown, the movable frame 5 is a hollow square structure. A finger-wrapping structure 2 is inserted into the hollow portion of the movable frame 5. Each of the four corners of the movable frame 5 has a through hole. One through hole houses a lead screw 7, thus having a threaded connection. The other three through holes house three guide rails 8, which are not threaded. All three through holes and guide rails 8 are smoothly arranged to facilitate smoother movement of the movable frame 5. The guide rails 8 also provide guidance and positioning for the movable frame 5. By providing through holes in the movable frame 5, and inserting the transmission mechanism and guide rails 8 within these holes, the structure of the finger detection device becomes more compact and smaller in size. Alternatively, in a different implementation, only one, two, or more guide rails 8 can be provided, with the number of through holes on the movable frame 5 matching the total number of guide rails 8 and lead screws 7. Alternatively, the movable frame 5 can be other shapes, such as triangular, trapezoidal, or elongated plate structures.

[0071] To automatically determine whether a subject's finger has entered the finger-wrapping structure 2, the finger detection device includes a sensor connected to a control device 4. The sensor is adapted to detect whether the subject's finger has entered the finger-wrapping structure 2 and transmits the detection information to the control device 4. Alternatively, instead of a sensor, the control device 4 may include a control button. When the subject inserts their finger into the finger-wrapping structure 2, they manually operate the control button to indicate that their finger has been inserted, and then the probe 3 can be moved to begin scanning.

[0072] Specifically, the sensor is a photoelectric sensor, and channels 201 are provided on the upper and lower opposite sides of the finger wrapping structure 2, and the channels 201 are elongated through holes.

[0073] The photoelectric sensor includes: a first sensor, located on one side of the finger-wrapping structure 2, adapted to emit light; and a second sensor 9, located on the other side of the finger-wrapping structure 2, adapted to receive the light emitted by the first sensor through a channel 201. Specifically, the first sensor is located on the upper side of the finger-wrapping structure 2, and the second sensor 9 is located on the lower side of the finger-wrapping structure 2. Since the photoelectric sensor needs to emit light, channels 201 are provided on opposite sides of the finger-wrapping structure 2 so that the light emitted by the first sensor can be transmitted to the second sensor 9 through the channels 201. If no person is being detected, the second sensor 9 can receive the light emitted by the first sensor. If the finger of the person being detected is inserted into the finger-wrapping structure 2, the light emitted by the first sensor is blocked by the finger, and the second sensor 9 cannot receive the light emitted by the first sensor, thereby automatically determining whether the finger of the person being detected is inserted into the finger-wrapping structure 2. As an alternative implementation, when the movable frame 5 is located on one side of the finger-wrapping structure 2, channels 201 can be provided on opposite sides in the horizontal direction of the finger-wrapping structure 2, such as the left and right sides, or the front and back sides.

[0074] Alternatively, the sensor can be a weight sensor, which can be installed below the finger wrapping structure 2. When the person being tested places their finger into the receiving cavity of the finger wrapping structure 2, the weight of the finger wrapping structure 2 will increase. When there is no finger in the receiving cavity of the finger wrapping structure 2, the weight of the finger wrapping structure 2 will decrease or return to the preset value, thereby automatically determining whether the person being tested has inserted their finger into the finger wrapping structure 2.

[0075] like Figure 4 As shown, the sensor is mounted on the movable frame 5. By mounting the sensor on the movable frame 5, the sensor can be moved along with the movable frame 5, allowing the sensor to detect the entire area of ​​the finger-wrapping structure 2 and more accurately determine whether a finger of the person being tested has been inserted into the finger-wrapping structure 2. Specifically, the first sensor is located above the movable frame 5, adjacent to the movable probe 3, and the second sensor 9 is located below the movable frame 5.

[0076] In this embodiment, the finger-wrapping structure 2 is an airbag. The main function of the airbag is to wrap around and position the finger of the person being tested. The finger detection device includes an air pump, which is located inside the housing 1 and connected to the airbag, and is adapted to inflate the airbag. By setting the finger-wrapping structure 2 as an airbag and installing an air pump inside the housing 1, the amount of air pumped into the airbag can vary depending on the different finger sizes of the people being tested, so that the airbag can better adapt to the fingers of different people being tested.

[0077] The portion of the airbag that contacts the subject's finger is made of a flexible material, such as soft rubber. By using a flexible material for this part, when the air pump inflates the airbag, the flexible material expands under the air pressure, completely covering the subject's finger. Because the part of the airbag that contacts the finger is made of a flexible material, the airbag can fit snugly against every part of the skin and joints of the finger, thus completely isolating light scattering from the moving probe 3 and the influence of external light, further ensuring detection accuracy. As an alternative implementation, the part of the airbag that contacts the finger can also be made of other flexible materials. Of course, the remaining parts of the airbag can be made of flexible or rigid materials; there are no major restrictions here.

[0078] The finger detection device includes a pressure sensor connected to an air pump. The pressure sensor is located on the air bladder and is suitable for detecting the air bladder pressure and transmitting the data to the air pump. The air pump adjusts the inflation force of the air bladder according to the pressure. To facilitate the placement of the pressure sensor, the part of the air bladder that does not contact the finger can be made of a rigid material, and the pressure sensor can be placed on this rigid material. By setting the pressure sensor, the pressure of the air bladder can be detected. Based on the different finger sizes of different users, the air pump can automatically control the inflation force of the air bladder, maximizing the user's comfort and improving the user experience. Simultaneously, a pressure threshold can be set. When the pressure sensor on the air bladder detects a pressure at the threshold, it sends a signal to the air pump to stop inflating the air bladder.

[0079] like Figure 2 As shown, the housing 1 includes: a top cover 102, on which a display device is provided, specifically, the display device can be a display window 1021, which facilitates the user's observation of the test data; a base 104, located below the top cover 102; and a bracket 103, fixedly disposed between the top cover 102 and the base 104. A first accommodating cavity is provided between the bracket 103 and the top cover 102, and a second accommodating cavity is provided between the bracket 103 and the base 104. A control device 4 is provided in the first accommodating cavity, and a finger-wrapping structure 2 and a movable frame 5 are provided in the second accommodating cavity. By setting the housing 1 in the form of a top cover 102, a base 104, and a bracket 103, the space of the housing 1 can be rationally utilized, making the components of the finger detection device more compact, the size of the finger detection device smaller, and enhancing the portability of the finger detection device.

[0080] The control device 4 mainly includes a control board, which is located within the first accommodating cavity. Specifically, a buckle can be provided on the bracket 103, and the control board can be snapped onto the bracket 103. Of course, the control device 4 may also include a control button, which can be located on the top cover 102. If the person being tested inserts their finger into the finger-wrapping structure 2, they can manually press the control button to start the moving probe 3 to scan and detect the finger.

[0081] The base 104 itself has a third accommodating cavity, which can be connected to the second accommodating cavity. The third accommodating cavity is used to house the air pump, motor 6, lead screw 7, and power supply to ensure the normal operation of the finger detection device. As an alternative implementation, the third accommodating cavity and the second accommodating cavity can be separated by a partition. In this case, for ease of connection, the air pump and power supply are housed in the third accommodating cavity, while the motor 6 and lead screw 7 can be placed in the second accommodating cavity.

[0082] In order to facilitate the motor 6 to drive the lead screw 7 and thus move the moving frame 5, the moving frame 5 is provided with a thread in a through hole on the lower side to connect with the lead screw 7, so as to facilitate the connection with the motor 6 located in the base 104.

[0083] For the three guide rails 8, the two upper guide rails 8 are located in the upper part of the second receiving cavity, while the other lower guide rail 8 is located in the third receiving cavity opposite to the lead screw 7.

[0084] like Figure 5 and Figure 6 As shown, the bracket 103 has an opening 1031, which, along with the channel 201, is elongated. A brush 501 is located on the top of the movable frame 5. The movable probe 3 is electrically connected to the control device 4 via the brush 501 and moves along the opening 1031. Since the control device 4 is located above the bracket 103 and the movable probe 3 is located below it, the opening 1031 on the bracket 103 facilitates the electrical connection between the movable probe 3 and the control device 4, allowing the control device 4 to easily energize the movable probe 3 without affecting its movement. Specifically, the brush 501 is a metal sheet similar to an antenna, which can contact the circuitry of the control device 4 above it to energize the movable probe 3.

[0085] In this embodiment, the finger detection device is a blood oxygen detector. As an alternative implementation, the finger detection device may also be a blood pressure detector, or other instruments that can measure the subject's body data by detecting the fingers.

[0086] When a pulse oximeter measures the blood oxygen saturation of a finger, the preset detection area for the moving probe 3 is the region between the fingernail and the joint closest to the nail. Since the most accurate results are obtained when measuring the blood oxygen saturation of a finger using this region, setting the preset detection area of ​​the moving probe 3 to this region ensures that regardless of the different finger sizes of different individuals, the moving probe 3 maintains a fixed detection area, representing the most accurate region for the measurement. This significantly enhances the accuracy of the test results.

[0087] The mobile probe 3 of the pulse oximeter can scan the finger of the person being tested using three-dimensional visual imaging technology. The scan can confirm the location of the fingernail, joints, etc., so that the mobile probe 3 can move to the preset detection area.

[0088] like Figure 1 As shown, the pulse oximeter in this embodiment is spherical in shape, with a finger insertion hole 101 at its front end. The front end of the pulse oximeter is... Figure 1 At the left end, the finger of the person being tested can be inserted into the enclosing cavity of the finger-wrapping structure 2 through the finger insertion hole 101 for testing. As an alternative implementation, the shape of the pulse oximeter can also be set to other shapes, such as a cuboid shape, without much limitation here.

[0089] like Figure 7 As shown, the workflow of a pulse oximeter is as follows:

[0090] First, it determines whether there is a finger inside the finger-wrapping structure 2. If not, it remains in standby mode. If there is a finger, it is powered on and begins operation. An air pump inflates the airbag. When the pressure sensor detects that the airbag pressure has reached a set threshold, the air pump stops inflating the airbag. The control device 4 controls the moving probe 3 to start scanning the outline of the finger of the person being tested using visual imaging technology. The moving probe 3 determines the preset detection area of ​​the finger. If the moving frame 5 is located in the preset detection area, the control device 4 keeps the position of the moving frame 5 unchanged. If the moving frame 5 is not in the preset detection area, the control device 4 controls the motor 6 to drive the lead screw 7 and move the moving frame 5 to the preset detection area so that the moving probe 3 is directly above the preset detection area. The moving probe 3 then begins to detect the finger of the person being tested. After the detection is completed, the person being tested can read the data at the display window 1021 on the top cover 102. At this time, the finger detection device can be in standby mode, waiting for the next person to be tested.

[0091] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A finger detection device, characterized by include: The housing (1) is provided with a finger insertion hole (101). A finger wrapping structure (2) is provided inside the housing (1). The finger wrapping structure (2) is provided with at least one channel (201). The finger wrapping structure (2) has a wrapping cavity, which is connected to the finger insertion hole (101) and the channel (201) and is suitable for wrapping the finger of the person to be tested. The drive assembly is located inside the housing (1); The movable probe (3) is located inside the housing (1) and connected to the drive assembly; A control device (4) is located inside the housing (1) and connected to the drive assembly. It is adapted to control the moving probe (3) to scan the finger of the person to be tested through the channel (201) after the finger of the person to be tested is inserted into the finger wrapping structure (2), and to control the drive assembly to drive the moving probe (3) to move to the preset detection area of ​​the finger for detection. The preset detection area of ​​the finger is the area between the fingernail and the joint closest to the fingernail. The moving frame (5) is connected to the driving component, and the moving probe (3) is provided on the moving frame (5). The movable frame (5) is fitted onto the outside of the finger wrapping structure (2).

2. The finger detection apparatus according to claim 1, characterized by The driving component includes: Drive mechanism; The transmission mechanism is connected at one end to the drive mechanism and at the other end to the moving frame (5).

3. The finger detection device according to claim 2, characterized in that, The finger detection device includes: At least one guide rail (8) is provided inside the housing (1), and the movable frame (5) moves along the guide rail (8).

4. The finger detection device according to claim 3, characterized in that, The movable frame (5) has at least two through holes, one of which is through which the transmission mechanism passes, and the other through holes are through which the guide rail (8) passes.

5. The finger detection device according to any one of claims 1-4, characterized in that, The finger detection device includes: A sensor is connected to the control device (4). The sensor is adapted to detect whether the finger of the person to be tested enters the finger wrapping structure (2) and transmits the detection information to the control device (4).

6. The finger detection device according to claim 5, characterized in that, The sensor is a photoelectric sensor, and the channels (201) are respectively provided on the opposite sides of the finger wrapping structure (2).

7. The finger detection device according to claim 6, characterized in that, The photoelectric sensor includes: The first sensor, located on one side of the finger-wrapping structure (2), is adapted to emit light; The second sensor (9) is located on the other side of the finger wrapping structure (2) and is adapted to receive the light emitted by the first sensor through the channel (201).

8. The finger detection device according to claim 5, characterized in that, The sensor is mounted on the movable frame (5).

9. The finger detection device according to any one of claims 1-4 and 6-8, characterized in that, The finger wrapping structure (2) is an airbag; The finger detection device includes an air pump located inside the housing (1), the air pump being connected to the airbag and adapted to inflate the airbag.

10. The finger detection device according to claim 9, characterized in that, The portion of the airbag that contacts at least the finger of the person being tested is made of a flexible material.

11. The finger detection device according to claim 9, characterized in that, The finger detection device includes a pressure sensor connected to the air pump. The pressure sensor is located on the air bladder and is adapted to detect the pressure of the air bladder and transmit it to the air pump. The air pump adjusts the inflation force of the air bladder according to the pressure.

12. The finger detection device according to any one of claims 1-4 and 6-8, characterized in that, The housing (1) includes: A top cover (102) is provided with a display device; A base (104) is located below the top cover (102); A bracket (103) is fixedly disposed between the top cover (102) and the base (104). A first accommodating cavity is provided between the bracket (103) and the top cover (102), and a second accommodating cavity is provided between the bracket (103) and the base (104). The control device (4) is provided in the first accommodating cavity, and the finger wrapping structure (2) and the moving frame (5) are provided in the second accommodating cavity.

13. The finger detection device according to claim 12, characterized in that, The bracket (103) has an opening (1031), and the top of the movable frame (5) has a brush (501). The movable probe (3) is electrically connected to the control device (4) through the brush (501) and moves along the opening (1031).

14. The finger detection device according to any one of claims 1-4 and 6-8, characterized in that, The finger detection device is a blood oxygen detector.

Images