A flexible pulse sensor

Abstract

The utility model discloses a kind of flexible pulse sensors, including sensor base and the pulse detection mechanism of being installed in the top of sensor base, the top of arc support is slidably connected with arc mounting ring, pulse radar is installed in the middle position of arc mounting ring bottom, air pump is installed in the side of arc support outer wall, electric push rod is installed in the two ends of arc support side respectively through the inner wall of two limit sliding slot, air bag is installed in the two sides of limit recess inner wall;The utility model, after patient hand is placed on arc support, it is automatically centered by the expansion of air bag, and according to the response of pulse radar, so that electric push rod is controlled by sensing switch to push arc mounting ring to move on arc support until the strongest pulsation frequency is detected, stop, and carry out non-contact sensing detection, solve the problem that pulse sensor of prior art is frequently used and is easily cross infection and pulse response is not accurate when non-contact sensing detection.

Description

Technical Field

[0001] This utility model relates to the technical field of pulse sensing, specifically a flexible pulse sensor. Background Technology

[0002] A pulse refers to the pulsation of an artery. A pulse sensor is used to detect the pressure changes generated during arterial pulsation and convert them into electrical signals that can be more directly observed and detected. Pulse sensors are available in two types based on their output method: analog and digital. Based on the signal acquisition method, they can be mainly divided into three types: piezoelectric, piezoresistive, and photoelectric. Piezoelectric and piezoresistive sensors use micro-pressure materials (piezoelectric elements, bridges, etc.) to convert the pressure process of a pulse into a signal output. Photoelectric pulse sensors, on the other hand, use reflection or through-beam methods to convert the changes in the light transmittance of blood vessels during a pulse into a signal output.

[0003] Existing pulse sensors are worn when detecting a patient's pulse. Since many patients wear the same pulse sensor, cross-infection can easily occur. However, non-contact pulse frequency detection is prone to problems because different patients place their hands differently. This can lead to large deviations between the sensor and the artery, resulting in decreased detection intensity and affecting the quality of pulse detection. To address this issue, this design proposes a flexible pulse sensor. Utility Model Content

[0004] The purpose of this invention is to provide a flexible pulse sensor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model proposes a flexible pulse sensor, including a sensor base and a pulse detection mechanism mounted on the top of the sensor base;

[0006] The pulse detection mechanism includes an arc-shaped bracket mounted on top of a sensor base. An arc-shaped mounting ring is slidably connected to the top of the arc-shaped bracket. A pulse radar is mounted at the middle position of the bottom of the arc-shaped mounting ring. An air pump is mounted on one side of the outer wall of the arc-shaped bracket. A conduit is inserted and connected to one side of the sensor base. Limiting grooves are formed at the middle positions of both sides of the top of the arc-shaped bracket. Electric push rods are mounted at both ends of one side of the arc-shaped bracket, passing through the inner walls of the two limiting grooves. A limiting groove is formed at the middle position of the bottom of the inner wall of the arc-shaped bracket. Airbags are mounted on both sides of the inner wall of the limiting groove.

[0007] In one example, multiple air outlet slots are provided at equal intervals on both sides of the inner wall of the limiting groove. One end of the duct is inserted and connected to the output end of the air pump, and the other end of the duct passes through the inner wall of the sensor base and the inner wall of the arc-shaped bracket and communicates with the inner wall of each air outlet slot.

[0008] In one example, sliders are fixedly provided at the middle positions on both sides of the bottom of the arc-shaped mounting ring, and the outer walls of the two sliders are slidably connected to the inner walls of the two limiting grooves, respectively. The output ends of the two electric push rods pass through the inner walls of the two limiting grooves and are fixedly connected to one side of the two sliders.

[0009] In one example, protective pads are fixedly provided on the outer surfaces of both airbags, and a dustproof net is installed at one edge of the inner wall of the air pump.

[0010] In one example, a signal transmitter is mounted on the top of the arc-shaped mounting ring, and the signal transmitter passes through the inner wall of the arc-shaped mounting ring and is electrically connected to the pulse radar.

[0011] In one example, a control panel is fixedly mounted on one side of the sensor base, and the air pump, electric push rod, and signal transmitter are all electrically connected to an external power supply through the control panel.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting an air outlet slot connected to the air pump on the pulse detection mechanism, and the air outlet slot is directed to the airbag, the patient's hand is placed on the arc-shaped support, and the expansion of the airbag automatically centers the hand. According to the pulse radar, the electric push rod is controlled by the sensor switch to push the arc-shaped mounting ring to move back and forth on the arc-shaped support until the strongest pulse frequency is detected and then it stops, and non-contact sensing detection is performed. This solves the problems of cross-infection caused by frequent use of pulse sensors in the prior art and the inaccuracy of pulse sensing during non-contact sensing detection. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the arc-shaped mounting ring and the arc-shaped bracket sliding connection of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the arc-shaped bracket of this utility model;

[0016] Figure 4 This is a schematic diagram of the bottom of the arc-shaped mounting ring of this utility model.

[0017] In the diagram: 1. Sensor base; 2. Pulse detection mechanism; 201. Arc-shaped bracket; 202. Arc-shaped mounting ring; 203. Pulse radar; 204. Air pump; 205. Conduit; 206. Limiting groove; 207. Electric push rod; 208. Limiting groove; 209. Airbag; 3. Air outlet; 4. Slider; 5. Protective pad; 6. Dustproof net; 7. Signal transmitter. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0019] Please see Figure 1-4 The present invention provides a technical solution: a flexible pulse sensor, including a sensor base 1 and a pulse detection mechanism 2 installed on the top of the sensor base 1;

[0020] The pulse detection mechanism 2 includes an arc-shaped bracket 201 mounted on the top of the sensor base 1. An arc-shaped mounting ring 202 is slidably connected to the top of the arc-shaped bracket 201. A pulse radar 203 is mounted at the middle position of the bottom of the arc-shaped mounting ring 202. An air pump 204 is mounted on one side of the outer wall of the arc-shaped bracket 201. A conduit 205 is inserted and connected to one side of the sensor base 1. Limiting grooves 206 are opened at the middle positions of both sides of the top of the arc-shaped bracket 201. Electric push rods 207 are installed at both ends of one side of the arc-shaped bracket 201, passing through the inner walls of the two limiting grooves 206 respectively. A limiting groove 208 is opened at the middle position of the bottom of the inner wall of the arc-shaped bracket 201. Airbags 209 are installed on both sides of the inner wall of the limiting groove 208.

[0021] In use, the patient can place their hand on the arc-shaped bracket 201 on top of the sensor base 1, supported by the limiting groove 208. At this time, the air pump 204 is activated to inflate the airbag 209 through the conduit 205. The conduit 205 guides the airflow generated by the air pump 204 into the airbag 209 through the air outlet 3, causing it to expand. The airbag inflates and compresses the hand on both sides of the limiting groove 208, centering the hand in the correct position. The pulse radar 203 on top of the arc-shaped mounting ring 202 detects the frequency of the patient's hand arteries. During detection, the electric push rod 207 pushes the slider 4, causing the arc-shaped mounting ring 202 to move to the limiting position. The pulse radar slides in the groove 206 until it senses the area with the strongest arterial frequency. At this point, the electric push rod 207 stops pushing. The pulse radar 203 then detects the pulse and transmits the detected frequency to the computer via the signal transmitter 7 to form data. Throughout the process, the patient is tested without contact, avoiding cross-infection. The compression limit of the airbag 209 and the movement of the arc-shaped mounting ring 202 driven by the electric push rod 207 enable the pulse radar 203 to accurately sense the arterial position and record the pulse frequency. This solves the problems of easy cross-infection during pulse sensing detection and inaccurate pulse sensing during non-contact sensing detection in the prior art.

[0022] Furthermore, multiple air outlet slots 3 are equally spaced on both sides of the inner wall of the limiting groove 208. One end of the duct 205 is inserted and connected to the output end of the air pump 204, and the other end of the duct 205 passes through the inner wall of the sensor base 1 and the inner wall of the arc bracket 201 respectively and communicates with the inner wall of each air outlet slot 3. In this design, the electric push rod 207 is small in size, which makes it easy to install on the arc bracket 201 and connect it with the slider 4 at the bottom of the arc mounting ring 202. At the same time, the air pump 204 discharges air to the air outlet slots 3, which facilitates the expansion of the air bag 209 and the retraction of the air bag 209 when not in use.

[0023] Furthermore, sliders 4 are fixedly provided at the middle positions on both sides of the bottom of the arc-shaped mounting ring 202, and the outer walls of the two sliders 4 are slidably connected to the inner walls of the two limiting grooves 206 respectively. The output ends of the two electric push rods 207 pass through the inner walls of the two limiting grooves 206 and are fixedly connected to one side of the two sliders 4 respectively. When the sliders 4 slide in the limiting grooves 206, they are limited, making it difficult for the arc-shaped mounting ring 202 to fall off.

[0024] Furthermore, protective pads 5 are fixedly provided on the outer surfaces of both airbags 209, and a dustproof net 6 is installed at the edge of one end of the inner wall of the air pump 204. When the air pump 204 is running, it draws in external air and introduces it into the duct 205, thereby blowing up the airbags 209. The dustproof net 6 is set to prevent a large amount of dust from entering and causing internal blockage.

[0025] A signal transmitter 7 is installed on the top of the arc-shaped mounting ring 202, and the signal transmitter 7 passes through the inner wall of the arc-shaped mounting ring 202 and is electrically connected to the pulse radar 203. The signal transmitter 7 is electrically connected to the pulse radar 203, and the signal transmitter 7 communicates with the external device computer.

Claims

1. A flexible pulse sensor, comprising a sensor base (1) and a pulse detection mechanism (2) mounted on top of the sensor base (1); Its features are: The pulse detection mechanism (2) includes an arc-shaped bracket (201) installed on the top of the sensor base (1). An arc-shaped mounting ring (202) is slidably connected to the top of the arc-shaped bracket (201). A pulse radar (203) is installed at the middle position of the bottom of the arc-shaped mounting ring (202). An air pump (204) is installed on one side of the outer wall of the arc-shaped bracket (201). A conduit (205) is inserted and connected to one side of the sensor base (1). Limiting grooves (206) are opened at the middle positions of both sides of the top of the arc-shaped bracket (201). Electric push rods (207) are installed at both ends of one side of the arc-shaped bracket (201) through the inner walls of the two limiting grooves (206). A limiting groove (208) is opened at the middle position of the bottom of the inner wall of the arc-shaped bracket (201). Airbags (209) are installed on both sides of the inner wall of the limiting groove (208).

2. The flexible pulse sensor according to claim 1, characterized in that: Multiple air outlet slots (3) are provided at equal distances on both sides of the inner wall of the limiting groove (208). One end of the duct (205) is inserted and connected to the output end of the air pump (204), and the other end of the duct (205) passes through the inner wall of the sensor base (1) and the inner wall of the arc bracket (201) respectively and is connected to the inner wall of each air outlet slot (3).

3. The flexible pulse sensor according to claim 1, characterized in that: The arc-shaped mounting ring (202) has two sliders (4) fixedly installed at the middle positions on both sides of the bottom. The outer walls of the two sliders (4) are slidably connected to the inner walls of the two limiting grooves (206). The output ends of the two electric push rods (207) pass through the inner walls of the two limiting grooves (206) and are fixedly connected to one side of the two sliders (4).

4. A flexible pulse sensor according to claim 1, characterized in that: The outer surfaces of both airbags (209) are fixedly provided with protective pads (5), and a dustproof net (6) is installed at one edge of the inner wall of the air pump (204).

5. A flexible pulse sensor according to claim 1, characterized in that: A signal transmitter (7) is mounted on the top of the arc-shaped mounting ring (202), and the signal transmitter (7) passes through the inner wall of the arc-shaped mounting ring (202) and is electrically connected to the pulse radar (203).

6. A flexible pulse sensor according to claim 5, characterized in that: A control panel is fixedly provided on one side of the sensor base (1), and the air pump (204), electric push rod (207) and signal transmitter (7) are all electrically connected to an external power supply through the control panel.

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