Multifunctional fingernail type blood oxygen measuring sensor
By designing a multifunctional fingernail-type blood oxygen measurement sensor with a dustproof and adjustable structure, the problem of existing sensors being inconvenient to adjust has been solved, enabling adaptive adjustment for different finger sizes and improving comfort.
Patent Information
- Application Number
- CN202422417928.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-10-08
AI Technical Summary
Existing fingernail-type pulse oximeter sensors are not easy to adjust, resulting in difficulty in size adjustment and poor user comfort.
A multifunctional fingernail-type blood oxygen measurement sensor was designed, which includes a first finger sleeve and an adjustment structure. By setting up a dustproof structure and an adjustment structure, it can be adapted to different finger thicknesses, and a telescopic structure is formed by connecting springs to reduce the pressure on the fingers.
It achieves adaptive adjustment for different finger sizes, improving user comfort and versatility, while extending the device's lifespan.
Smart Images

Figure CN223541917U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of blood oxygen measurement sensor technology, and in particular to a multifunctional fingernail-type blood oxygen measurement sensor. Background Technology
[0002] A blood oxygen sensor is a device or sensor used to measure the oxygen saturation in human blood. It acquires relevant data on blood oxygen levels in a non-invasive or minimally invasive manner. A multifunctional fingernail-type blood oxygen sensor is a small, portable device used to non-invasively monitor human blood oxygen saturation (SpO2) and heart rate.
[0003] Most existing fingernail-type blood oxygen measurement sensors use a clip-on method to hold the finger during use, which makes it difficult to adjust the size and puts a lot of pressure on the finger, resulting in poor user comfort and hindering multi-functional size adjustment. Utility Model Content
[0004] The purpose of this invention is to provide a multifunctional fingernail-type pulse oximetry sensor to address the shortcomings of existing fingernail-type pulse oximetry sensors that are not easy to adjust.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a multifunctional fingernail-type blood oxygen measurement sensor, including a first finger sleeve and an adjustment structure;
[0006] A second finger sleeve is installed at the top of the first finger sleeve. One end of both the first and second finger sleeves is provided with a placement groove, and a sponge pad is fixed inside the placement groove.
[0007] An operation panel is fixed to the top of the second finger sleeve, and a dustproof structure is installed on the outside of the operation panel at the top of the second finger sleeve.
[0008] The first finger sleeve has an adjustment structure installed inside. The adjustment structure includes a slide groove, a rack, an internal groove, a rotating shaft, a gear, a connecting groove, a connecting spring, and a fixing block. The slide groove is located on both sides inside the first finger sleeve. A rack is fixed to the bottom end of the second finger sleeve inside the slide groove. An internal groove is provided on one side of the slide groove. A rotating shaft is installed inside the internal groove. A gear is fixed at the middle position of the outer side of the rotating shaft. A connecting groove is provided at the edge of one end of the first finger sleeve. A connecting spring is installed inside the connecting groove. Fixing blocks are fixed at both ends of the connecting spring.
[0009] Preferably, there are two sets of placement slots, which are symmetrically distributed at one end of the first finger sleeve and the second finger sleeve, and the placement slots are semi-circular.
[0010] Preferably, the dustproof structure includes a cover plate, a slider, and a limiting groove. The top of the second finger sleeve is fitted with a cover plate, and sliders are fixed on both sides of the bottom end of the cover plate. A limiting groove is provided on the outer side of the slider at the top of the second finger sleeve.
[0011] Preferably, the slider is T-shaped, the limiting groove is fitted with the slider, and the slider and the limiting groove are slidably connected.
[0012] Preferably, the slide groove is provided in two sets, and the slide groove is symmetrically distributed on both sides of the top of the first finger sleeve, and the top of the rack is fixedly connected to the bottom of the second finger sleeve.
[0013] Preferably, the two ends of the rotating shaft are movably connected to the two sides inside the built-in groove, and one side of the rack is meshed with the outer side of the gear.
[0014] Preferably, the connecting groove is provided in four sets, the connecting groove is evenly distributed at the edge of the top of the first finger sleeve, the top of the connecting groove extends into the interior of the second finger sleeve, and one end of the fixing block is fixedly connected to both ends inside the connecting groove.
[0015] The multifunctional fingernail-type blood oxygen measurement sensor provided by this utility model has the following advantages:
[0016] With a dustproof structure, the cover slides inside the limiting groove via a slider. When not in use, simply slide the cover to cover the control panel, thus protecting it from dust falling onto the surface of the control panel and preventing accidental touches. This achieves protection for the fingernail-type blood oxygen measurement sensor and improves its service life.
[0017] By incorporating an adjustable structure, a finger is placed inside the slot, and pressing the second finger sleeve causes the rack to slide downwards within the groove. The rack engages with a gear, causing the gear to rotate as it slides downwards. The gear's teeth then limit the rack's position, ensuring it remains fixed in a specific location. This design accommodates fingers of varying sizes. Furthermore, a connecting spring links the first and second finger sleeves, creating a telescopic structure that prevents pressure on the finger from affecting accuracy. This practicality enhances the versatility of the fingernail-type blood oxygen measurement sensor. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0019] Figure 2 This is a frontal cross-sectional view of the present invention.
[0020] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0021] Figure 4 This is a side sectional view of the present invention.
[0022] Figure 5 This is a three-dimensional structural diagram of the first finger sleeve of this utility model.
[0023] The following are the annotations in the figure: 1. First finger sleeve; 2. Second finger sleeve; 3. Placement groove; 4. Sponge pad; 5. Operation panel; 6. Dustproof structure; 601. Cover plate; 602. Slider; 603. Limiting groove; 7. Adjustment structure; 701. Slide groove; 702. Rack; 703. Internal groove; 704. Rotating shaft; 705. Gear; 706. Connecting groove; 707. Connecting spring; 708. Fixing block. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1-5 The present invention provides a multifunctional fingernail-type blood oxygen measurement sensor, including a first finger sleeve 1 and an adjustment structure 7.
[0026] Reference Figure 1 , Figure 2 and Figure 4 As shown, a second finger sleeve 2 is installed on the top of the first finger sleeve 1. A placement groove 3 is provided at one end of both the first finger sleeve 1 and the second finger sleeve 2. The placement groove 3 is provided in groups and is symmetrically distributed at one end of the first finger sleeve 1 and the second finger sleeve 2. The placement groove 3 is semi-circular and a sponge pad 4 is fixed inside the placement groove 3. An operation panel 5 is fixed on the top of the second finger sleeve 2. A dustproof structure 6 is installed on the outside of the operation panel 5 on the top of the second finger sleeve 2. The dustproof structure 6 includes a cover plate 601, a slider 602 and a limiting groove 603. A cover plate 601 is installed on the top of the second finger sleeve 2. Slider 602 is fixed on both sides of the bottom end of the cover plate 601. A limiting groove 603 is provided on the outside of the slider 602 on the top of the second finger sleeve 2. The slider 602 is T-shaped. The limiting groove 603 fits into the slider 602 and the slider 602 is slidably connected to the limiting groove 603.
[0027] The cover plate 601 slides inside the limiting groove 603 via the slider 602. When not in use, simply slide the cover plate 601 to cover the operation panel 5, thereby protecting the operation panel 5 and preventing dust from falling onto the surface of the operation panel 5. This also prevents accidental touches on the operation panel 5, thus achieving the protection function for the fingernail-type blood oxygen measurement sensor and improving its service life.
[0028] Reference Figures 2-5 As shown, the first finger sleeve 1 has an adjustment structure 7 installed inside. The adjustment structure 7 includes a slide groove 701, a rack 702, an internal groove 703, a rotating shaft 704, a gear 705, a connecting groove 706, a connecting spring 707, and a fixing block 708. The slide groove 701 is located on both sides inside the first finger sleeve 1. The rack 702 is fixed to the bottom end of the second finger sleeve 2 inside the slide groove 701. An internal groove 703 is provided on one side of the slide groove 701. A rotating shaft 704 is installed inside the internal groove 703. A gear 705 is fixed at the middle position of the outer side of the rotating shaft 704. A connecting groove 706 is provided at the edge of one end of the first finger sleeve 1. A connecting spring 707 is installed inside the connecting groove 706. Spring 707, with fixing blocks 708 fixed at both ends of the connecting spring 707, two sets of sliding grooves 701 are provided, the sliding grooves 701 are symmetrically distributed on both sides of the top of the first finger sleeve 1, the top of the rack 702 is fixedly connected to the bottom of the second finger sleeve 2, the two ends of the rotating shaft 704 are movably connected to both sides of the inside of the built-in groove 703, one side of the rack 702 is meshed with the outside of the gear 705, four sets of connecting grooves 706 are provided, the connecting grooves 706 are evenly distributed at the edge of the top of the first finger sleeve 1, the top of the connecting grooves 706 extends into the inside of the second finger sleeve 2, and one end of the fixing block 708 is fixedly connected to both ends of the inside of the connecting groove 706.
[0029] By placing a finger inside the placement groove 3, and then pressing the second finger sleeve 2, the rack 702 slides downward inside the slide groove 701. The rack 702 meshes with the gear 705, causing the gear 705 to rotate the shaft 704 as the rack 702 slides downward. The gear 705 then limits the rack 702 through its teeth, ensuring that the rack 702 can be stopped and fixed in a certain position. This makes it suitable for fingers of different sizes. At the same time, the first finger sleeve 1 and the second finger sleeve 2 are connected by a connecting spring 707, so that the first finger sleeve 1 and the second finger sleeve 2 form a telescopic structure. This prevents the first finger sleeve 1 and the second finger sleeve 2 from squeezing the finger and affecting the accuracy, making it practical and improving the multifunctionality of the fingernail-type blood oxygen measurement sensor.
[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A multifunctional fingernail-type blood oxygen measurement sensor, comprising a first finger sleeve (1) and an adjustment structure (7); Its features are: The top of the first finger sleeve (1) is fitted with a second finger sleeve (2). One end of the first finger sleeve (1) and the second finger sleeve (2) are provided with a placement groove (3). A sponge pad (4) is fixed inside the placement groove (3). The top of the second finger sleeve (2) is fixed with an operation panel (5), and a dustproof structure (6) is installed on the outside of the operation panel (5) at the top of the second finger sleeve (2); The first finger sleeve (1) has an adjustment structure (7) installed inside. The adjustment structure (7) includes a slide groove (701), a rack (702), an internal groove (703), a rotating shaft (704), a gear (705), a connecting groove (706), a connecting spring (707), and a fixing block (708). The slide groove (701) is located on both sides inside the first finger sleeve (1). The rack (702) is fixed to the bottom end of the second finger sleeve (2) inside the slide groove (701). The slide groove (701) has an internal groove (703) on one side, and a rotating shaft (704) is installed inside the internal groove (703). A gear (705) is fixed at the middle position of the outer side of the rotating shaft (704). A connecting groove (706) is provided at the edge of one end of the first finger sleeve (1). A connecting spring (707) is installed inside the connecting groove (706). A fixing block (708) is fixed at both ends of the connecting spring (707).
2. The multifunctional fingernail-type blood oxygen measurement sensor according to claim 1, characterized in that: The placement groove (3) is provided in two sets. The placement groove (3) is symmetrically distributed at one end of the first finger sleeve (1) and the second finger sleeve (2). The placement groove (3) is semi-circular.
3. The multifunctional fingernail-type blood oxygen measurement sensor according to claim 1, characterized in that: The dustproof structure (6) includes a cover plate (601), a slider (602) and a limiting groove (603). The top of the second finger sleeve (2) is equipped with a cover plate (601), and sliders (602) are fixed on both sides of the bottom end of the cover plate (601). A limiting groove (603) is provided on the outer side of the top slider (602) of the second finger sleeve (2).
4. A multifunctional fingernail-type blood oxygen measurement sensor according to claim 3, characterized in that: The slider (602) is T-shaped, the limiting groove (603) is fitted with the slider (602), and the slider (602) and the limiting groove (603) are slidably connected.
5. A multifunctional fingernail-type blood oxygen measurement sensor according to claim 1, characterized in that: Two sets of slide grooves (701) are provided. The slide grooves (701) are symmetrically distributed on both sides of the top of the first finger sleeve (1). The top of the rack (702) is fixedly connected to the bottom of the second finger sleeve (2).
6. A multifunctional fingernail-type blood oxygen measurement sensor according to claim 1, characterized in that: The two ends of the rotating shaft (704) are movably connected to the two sides inside the built-in groove (703), and one side of the rack (702) is meshed with the outer side of the gear (705).
7. A multifunctional fingernail-type blood oxygen measurement sensor according to claim 1, characterized in that: The connecting groove (706) is provided in four sets. The connecting groove (706) is evenly distributed at the edge of the top of the first finger sleeve (1). The top of the connecting groove (706) extends into the interior of the second finger sleeve (2). One end of the fixing block (708) is fixedly connected to both ends inside the connecting groove (706).