CN111904398A - Radial artery detection device and detection method thereof - Google Patents

Abstract

A radial artery detection device and a detection method thereof, the radial artery detection device comprises: a pulse wave sensing device, which is arranged on the skin surface of the radial artery, and comprises a first connecting body and a pulse wave arranged in the first connecting body. A detection sensor; a pressure equalizing device, comprising a second connecting body and a balancer arranged on the second connecting body, the second connecting body is connected with the first connecting body of the pulse wave sensing device, and the balancer withstands the pulse wave detection sensor , used to provide a predetermined pressure to the pulse wave sensing device. The present invention also includes a radial artery detection method. On the one hand, the invention can detect for a long time, has high stability and high reliability; on the other hand, it can greatly improve the sensitivity of the sensor and restore a more real and accurate waveform, thereby enabling doctors to grasp the state of the patient more accurately.

Description

Radial artery detection device and detection method thereof

technical field

The invention relates to the technical field of radial artery detection, in particular to a radial artery detection device and a detection method thereof.

Background technique

Extracting the physiological and pathological information of the human body from the pulse wave is used as the basis for clinical diagnosis and treatment, and has always been valued by the Chinese and foreign medical circles. The comprehensive information such as the shape, intensity and velocity presented by the pulse wave reflects the blood flow characteristics of many physiological and pathological conditions in the human cardiovascular system to a large extent. These pulse waves can be detected through the body's surface arteries such as the carotid, brachial and radial arteries. Among them, because the radial artery is close to the peripheral blood vessels on the body surface, the information is particularly rich, and the detection is also the most convenient.

The existing radial artery detection device is usually a clip-type structure, and the detection device is clamped at the radial artery of the human wrist. Although this structure is easy to install, it is unstable, and the pulse wave cannot be detected when the wrist is slightly moved. Not suitable for long-term detection. Another radial artery detection device is an electric self-adaptive detection device, that is, the detection device automatically finds the position of the radial artery and fixes it, but this method takes a long time to locate, and if the pulse is weak, it is difficult to detect immediately. Take a long time to find the location of the radial artery. In addition, the existing radial artery detection sensor cannot obtain a real waveform, that is, the sensor will be affected by the force of the skin tissue while detecting the distance change of the pulse beating. Although the waveform can be detected, it cannot detect the real waveform. waveform, poor accuracy.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a radial artery detection device and a detection method with high stability, high sensitivity and high accuracy.

The technical scheme of the present invention is:

A radial artery detection device of the present invention includes:

A pulse wave sensing device, arranged on the skin surface at the radial artery, comprising a first connecting body and a pulse wave detecting sensor arranged in the first connecting body;

The pressure equalizing device includes a second connecting body and a balancer arranged on the second connecting body, the second connecting body is connected with the first connecting body of the pulse wave sensing device, and the balancer is against the pulse wave detecting sensor, and is used for A predetermined pressure is applied to the pulse wave sensing device.

Further, the balancer includes a base body, a prestressing part and a plug, the base body is fixed on the second connecting body, and the prestressing device and the plug are arranged on the base body and bear against the pulse wave detection sensor.

Further, the prestressing part is a spring, a compressed air bag or an electronically controlled force application device.

Further, the second connecting body is a circuit board, the base body of the balancer passes through the circuit board, and one end of the plug is arranged in the base body.

Further, the first connecting body includes a bottom shell and a middle shell disposed on the skin surface above the radial artery, and the bottom shell and the middle shell are detachably connected.

Further, a pulse wave detection sensor is arranged in the middle casing, and the second connecting body is connected with the middle casing, so that the balancer on the second connecting body withstands the pulse wave detecting sensor; the upper part of the second connecting body A cover body is provided to form an integral packaging structure.

Further, the bottom shell and the middle shell are provided with through holes for passing through the pulse wave detection sensor probe.

Further, the bottom surface of the bottom casing is provided with an adhesive portion.

Further, it also includes a wrist fixing device, the wrist fixing device includes a support plate and a connection part, the support plate fits the back of the hand and the wrist, and the connection part is used to fix the support plate with the hand and the wrist; the pulse The wave sensing device is connected to the wrist immobilization device.

Further, the shape of the support plate is adapted to the shape of the human body's hand and wrist.

A radial artery detection method of the present invention comprises the following steps:

S1: Fix the wrist fixing device on the back of the hand and wrist, with the front of the wrist facing up;

S2: Lock the pulse position of the radial artery through the through hole on the bottom shell of the first connecting body, and glue the bottom shell to the skin surface of the radial artery, and then connect the overall structure formed by the middle shell and the cover to the On the bottom shell, the probe of the pulse wave detection sensor passes through the through hole of the bottom shell to contact the skin at the pulse, and the balancer always withstands the pulse wave detection sensor;

S3: The pulse wave at the radial artery is detected in real time by the pulse wave detection sensor, and is transmitted to the display device for display.

Further, the balancer provides a predetermined pressure for the pulse wave sensing device, and the acting force is opposite to the detection force of the pulse wave sensing device.

Beneficial effects of the present invention:

1. High stability: The hand and wrist are firmly fixed by the wrist fixing device, and then fixed by the adhesive part on the bottom shell, which can greatly improve the firmness. Even if the subject moves, the pulse wave detection sensor can be maintained. The probe does not deviate from the pulse position, maintains the stability of pulse wave detection, and is especially suitable for long-term detection of the subject, which can move freely and maintain comfort.

2. High sensitivity: By setting the balancer to withstand the pulse wave detection sensor, it provides a predetermined pressure for the pulse wave detection sensor, which greatly improves the sensitivity of the sensor, and can restore a more realistic and accurate waveform, so that the doctor can grasp the patient's state. more accurate.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention;

FIG. 2 is a schematic diagram of a split structure of a pulse wave sensing device and a pressure equalizing device according to an embodiment of the present invention.

Description of drawings:

1. Pulse wave sensing device; 2. Wrist fixing device; 3. Balancer; 4. Second connecting body; 5. Cover body; 11. Pulse wave detection and sensing; 12. Bottom shell; 13. Middle shell ; 14. Through hole; 21. Pallet; 22. Strap; 31. Plug; 32. Base; 111. Induction sheet;

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in Figure 1 and Figure 2: a radial artery detection device, comprising a pulse wave sensing device 1, a wrist fixation device 2 and a pressure equalization device.

In this embodiment, the wrist fixing device 2 includes a support plate 21 and a connecting portion, the support plate 21 fits the back of the hand and the wrist, and the connecting portion is used for fixing the support plate to the hand and the wrist.

Specifically, the support plate 21 has an arc-shaped structure, which can at least cover the back of the back of the hand and the wrist joint, and is matched with the back of the back of the hand and the wrist joint, so as to improve wearing comfort. The connecting part includes straps 22 arranged at least on the upper and lower parts of the support plate, and the straps can be bound and fixed by means of snaps or other forms, so as to firmly fix the support plate to the hand and wrist. For example, the upper and lower parts of the pallet are provided with straps, and the back of the pallet is provided with velcro or strap perforations at the position corresponding to the binding of the straps. The Velcro on the strap is bonded to the Velcro on the back of the pallet to fix the hand, and the Velcro on the lower strap is bonded to the Velcro on the back of the pallet to fix the wrist. If the strap perforation is provided, the strap can be fixed by passing the strap through the strap perforation. In this way, even if the subject moves, the stability of pulse wave detection can be maintained.

The support plate 21 includes a two-layer structure, the bottom surface is made of hard material, and the inner lining is made of flexible material, so that when the skin of the hand and wrist is in contact with the inner lining of the support plate, comfort is improved.

In this embodiment, the pulse wave sensing device 1 is arranged on the skin surface at the radial artery, and includes a first connecting body and a pulse wave detecting sensor 11 arranged in the first connecting body.

Specifically, the first connecting body includes a bottom shell 12 and a middle shell 13 provided on the skin surface above the radial artery, and the bottom shell 12 and the middle shell 13 are detachably connected. The bottom casing and the middle casing are both provided with through holes 14 for passing through the pulse wave detection sensor probe. The reason why this embodiment is set to a detachable structure is to accurately locate the pulse position of the radial artery. That is, the pulse position is accurately locked through the through hole 14 of the bottom shell 12, and then the bottom shell 12 is fixed, and then other shells are connected to the bottom shell 12. If it is directly connected to the radial artery as a whole, it is not easy to Accurately locate the pulse position, because the through hole 14 will be occupied by the probe of the pulse wave detection sensor. Once the position is fixed incorrectly, it needs to be removed and searched again, which greatly wastes time. When disassembled, firstly by fixing the bottom shell, the through hole can be fully utilized for accurate positioning, and then the probe of the pulse wave detection sensor 11 is passed through the through hole 14 to contact the skin at the pulse.

The side of the bottom shell 12 that is in contact with the skin is in an arc shape, that is, the middle part is flat, and the two end parts are bent to be as close to the shape of the wrist as possible. The bottom shell 12 is provided with a bonding portion, and the outer surface of the bonding portion is provided with a protective layer. By tearing off the protective layer, the bottom shell can be bonded to the skin.

The plug-in connection between the middle casing 13 and the bottom casing 12 is convenient for quick disassembly and installation. The middle casing 13 is provided with a cavity for installing the pulse wave detection sensor 11, and the probe 112 of the pulse wave detection sensor 11 extends along the through hole 14 of the middle casing and passes through the through hole 14 of the bottom casing, In contact with the pulse of the radial artery.

In this embodiment, the pressure balancing device includes a second connecting body 4 and a balancer 3 arranged on the second connecting body 4 . The second connecting body 4 is connected to the first connecting body of the pulse wave sensing device 11 , and the balancer 3. Against the pulse wave detection sensor 11, for providing a predetermined pressure to the pulse wave detection device.

Specifically, the second connecting body 4 is a circuit board, and the balancer 3 includes a plug 31, a prestressed portion and a base 32. The base 32 is fixed on the second connecting body and passes through the second connecting body. In the seat body, the other end bears the pulse wave detection sensor; the prestressing device is arranged in the seat body and is located between the plug and the seat body. Preferably, the pre-stressing device is a spring, a compressed air bag or an electronically controlled force-enhancing device, for example, a spring is installed in the base of the balancer to exert a certain force on the lower head. The pulse wave detection sensor includes an induction sheet 111 and a probe 112 arranged on the induction sheet. The induction sheet 111 is connected to the circuit board to facilitate signal transmission, and the plug 31 bears against the probe part.

A cover body 5 is arranged above the second connecting body, so that the base of the balancer is pressed by the cover body 5, and the plug is against the pulse wave detection sensor 11 under the elastic action of the prestressed portion.

In this embodiment, when the cover body 5 is combined with the middle case 13 and the bottom case 12, the middle case 13 is connected and fixed with the bottom case 12, and the cover body 5 is connected and fixed with the middle case 13, so that the three form a As a whole, the pressure balancing device, the second connecting body and the pulse wave detection sensor are encapsulated in the middle shell, and the cover body presses the seat body, so that the plug can withstand the probe of the pulse wave detection sensor, and the pulse wave detection sensor is provided. The probe exerts a predetermined pressure, so that the pulse wave detection sensor is subjected to the force applied to it by the head no matter whether it is detecting or not. In addition, the middle shell or the bottom shell is also provided with a strap 22, and the middle of the back of the support plate of the wrist fixing device is provided with a Velcro or a strap hole, so that the detection device can be fixed on the support plate as a whole, even if the human body produces body The position of the detection device relative to the radial artery will remain unchanged.

In this embodiment, the pulse wave detection sensor 11 is a strain-type pressure sensor, which can detect the pulse wave in real time, and transmit the detected pulse wave to the display device for display through the circuit board, so that the doctor can grasp the state of the patient at any time.

The detection method of this embodiment includes:

S101: Fix the wrist fixing device on the back of the hand and the wrist, with the front of the wrist facing up.

Specifically, fit the backs of the hands and wrists to the inner lining of the pallet, and wrap the upper and lower straps of the pallet around the fronts of the hands and wrists respectively to adhere and fix with the Velcro on the back of the pallet, so that the hands and the The wrist is firmly fixed on the pallet, and the front of the wrist is facing upward to expose the radial artery, which is convenient for placing the detection device.

S102: Lock the pulse position of the radial artery through the through hole on the bottom shell of the first connecting body, adhere the bottom shell to the skin surface at the radial artery, and then connect the overall structure formed by the middle shell and the cover to the On the bottom shell, the probe of the pulse wave detection sensor passes through the through hole of the bottom shell to contact the skin at the pulse, and the balancer always bears against the pulse wave detection sensor.

Specifically, the bottom case is separated from the middle case and the cover, and the middle case and the cover are connected to form an integral structure, the pulse position of the radial artery is locked through the through hole on the bottom case, and then the bottom case is torn off The protective layer on the upper part makes the adhesive part adhere to the skin, and then the integral structure formed by the middle casing and the cover body is installed on the bottom casing. At this time, the probe of the pulse wave detection sensor directly contacts the pulse through the bottom shell for detection, and the balancer always resists the probe of the pulse wave detection sensor to apply a predetermined pressure to the pulse wave detection sensor.

The function of the balancer in this embodiment is to make the restored pulse waveform more real and accurate. For example: the force of the pulse changes by 1g, but to detect the pulse beat is a distance change, we need to apply a force of 100g to overcome the force of the skin tissue, if there is no balancer to balance the static force of the radial artery, we need to With a 100g sensor, the balancer only needs to use a 1g pulse wave detection sensor. The resolution of the 100g sensor is larger than that of the 1g sensor. Although the waveform can be detected, the real waveform cannot be obtained. The present invention greatly improves the sensitivity of the sensor by setting the balancer, and can restore a more real and accurate waveform. waveform, which enables doctors to grasp the patient's state more accurately.

S103: Detect the pulse wave at the radial artery in real time through the pulse wave detection sensor, and transmit the pulse wave to the display device for display.

The pulse wave signal detected in real time by the pulse wave detection sensor in this embodiment can be transmitted to the display device through the control unit on the circuit board for display, and the display device can be a computer or other display equipment. Keep track of the patient's condition at any time.

To sum up, on the one hand, the present invention can detect for a long time, has high stability and high reliability; on the other hand, it can greatly improve the sensitivity of the sensor and restore a more real and accurate waveform, thereby enabling doctors to grasp the state of the patient. more accurate.

Claims (10)

1. A radial artery detection device, comprising:

the pulse wave sensing device is arranged on the surface of the skin at the radial artery and comprises a first connecting body and a pulse wave detection sensor arranged in the first connecting body;

the pressure balancing device comprises a second connecting body and a balancer arranged on the second connecting body, the second connecting body is connected with the first connecting body of the pulse wave sensing device, and the balancer withstands the pulse wave detection sensor and is used for providing preset pressure for the pulse wave sensing device.

2. The radial artery detection device of claim 1, wherein the balancer comprises a seat body, a pre-stress portion and a tip, the seat body is fixed on the second connecting body, and the pre-stress portion and the tip are disposed on the seat body and are abutted against the pulse wave detection sensor; or the prestressed part is a spring, a compression air bag or an electric control force application device.

3. The radial artery detection device of claim 2, wherein the second connector is a circuit board, the seat of the balancer passes through the circuit board, and one end of the plug is disposed in the seat.

4. The radial artery detection device of claim 1, 2 or 3, wherein the first connector comprises a bottom housing and a middle housing disposed on the skin surface above the radial artery, and the bottom housing is detachably connected to the middle housing.

5. The radial artery detection device of claim 4, wherein a pulse wave detection sensor is disposed in the middle housing, and the second connecting body is connected to the middle housing such that the balancer on the second connecting body abuts against the pulse wave detection sensor; and a cover body is arranged above the second connector to form an integral packaging structure.

6. The radial artery detection device of claim 4, wherein the bottom housing and the middle housing are provided with through holes for passing through the pulse wave detection sensor probe.

7. The radial artery detection device of claim 4, wherein the bottom surface of the bottom housing is provided with an adhesive portion.

8. The radial artery detection device of claim 1, 2 or 3, further comprising a wrist fixation device, wherein the wrist fixation device comprises a support plate and a connecting portion, the support plate fits against the back of the hand and the wrist, and the connecting portion is used for fixing the support plate with the hand and the wrist; the pulse wave sensing device is connected with the wrist fixing device.

9. The radial artery detection device of claim 8, wherein the shape of said support plate is adapted to the shape of a human hand and wrist.

10. A method for radial artery detection, comprising the steps of:

s1: fixing the wrist fixing device on the back of the hand and the wrist with the front of the wrist facing upwards;

s2: the pulse position of the radial artery is locked through a through hole in the bottom shell of the first connecting body, the bottom shell is adhered to the surface of the skin at the radial artery, and then the integral structure formed by the middle shell and the cover body is connected to the bottom shell, so that the probe of the pulse wave detection sensor penetrates through the through hole in the bottom shell to be in contact with the skin at the pulse position, and the balancer constantly supports against the pulse wave detection sensor;

s3: the pulse wave at the radial artery is detected in real time by the pulse wave detection sensor and transmitted to the display device for display.

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