A pulse diagnosis apparatus

Abstract

The present application relates to a kind of pulse diagnosis instruments, including the diagnosis cover with the open diagnosis mouth of bottom, the bottom of diagnosis cover is the diagnosis cover contact part for being used to contact with the skin of patient, diagnosis cover is provided with the diagnosis cover fixed structure for being fixed to the limb of patient on diagnosis cover, diagnosis cover is provided with diagnosis cover air port, pulse diagnosis instrument further includes the gas charging unit connected with diagnosis cover air port, diagnosis cover is provided with displacement sensor towards the skin of patient between the diagnosis cover contact part described.This application solves the technical problem that in prior art, during pulse diagnosis, due to the transmission error of flexible sensing surface in pressure transmission process, further leading to inaccurate pulse diagnosis.

Description

Technical Field

[0001] This invention relates to medical devices for pulse diagnosis, and more particularly to a pulse diagnosis instrument. Background Technology

[0002] Traditionally, pulse diagnosis refers to a doctor touching and pressing the radial artery on the patient's wrist to perceive the pulse's frequency, intensity, and rhythm, and then combining this with traditional Chinese medicine theory to judge the state of the body's Qi and blood, as well as the functions of the internal organs.

[0003] Traditional pulse diagnosis requires the doctor to apply pressure to the radial artery with their fingers and then perceive the corresponding pulse pattern. This places high demands on the doctor's skill level. Doctors with different skill levels will perceive the pulse pattern differently, which can lead to errors in the final diagnosis.

[0004] To address this, existing technologies have introduced pulse sensors for pulse diagnosis, such as the "Pulse Sensor Based on Flexible Airbag Encapsulation" disclosed in Chinese Patent CN110251092A, which includes a flexible sensing surface and a connector. The flexible sensing surface is provided with an inert insulating gas, and one end of the connector is connected to a pressure sensor.

[0005] Essentially, it's a thin-film sensor. In use, the sensor is attached to the radial artery to detect the corresponding pulse pattern. Existing pulse sensors have the following problems: 1. The pulse sensor cannot apply pressure to the radial artery during use (as doctors do when taking a pulse). This makes it difficult to transmit the pulse's frequency, intensity, and other characteristics outwards, making it hard for the pressure sensor to detect the pulse pattern. 2. For the pressure sensor to obtain the pressure rebound from the corresponding radial artery, the pressure from the radial artery needs to pass through the skin and a flexible sensing surface before finally being transmitted to the pressure sensor. While inert insulating gas is a homogeneous fluid and Pascal's principle applies to this pressure transmission process, skin, especially the flexible sensing surface, is not a homogeneous fluid. Therefore, there is a certain deviation in the pressure transmission process. This deviation affects the expression of the pulse pattern and thus the final diagnostic result. Summary of the Invention

[0006] The purpose of this invention is to provide a pulse diagnosis instrument to solve the technical problem in the prior art where the flexible sensing surface generates transmission errors during pressure transmission, leading to inaccurate pulse diagnosis.

[0007] To solve the above-mentioned technical problems, the technical solution of the pulse diagnosis instrument in this invention is as follows: A pulse diagnosis device includes a diagnostic cover with an open diagnostic port at the bottom, a diagnostic cover contact portion at the bottom of the diagnostic cover for contact with the patient's skin, a diagnostic cover fixing structure for fixing the diagnostic cover to the patient's limb, a diagnostic cover air vent on the diagnostic cover, an inflation / deflation unit connected to the diagnostic cover air vent, and a displacement sensor on the diagnostic cover toward the patient's skin between the diagnostic cover contact portions.

[0008] Furthermore, the displacement sensor is a planar array displacement sensor.

[0009] Furthermore, the internal dimensions of the diagnostic cover gradually increase from top to bottom.

[0010] Furthermore, the displacement sensor is fixed to the top of the diagnostic cover, and the measuring head of the displacement sensor extends into the inside of the diagnostic cover.

[0011] Furthermore, the diagnostic cover fixing structure is a strap-type fixing structure, or the diagnostic cover fixing structure includes negative pressure chambers disposed on the left and right sides and / or the front and rear sides of the diagnostic cover, and the inflation / deflation unit is connected to the negative pressure chambers.

[0012] Furthermore, the outer periphery of the diagnostic cover is provided with a sealing ring at the bottom for contact with the patient's skin. The bottom of the sealing ring is lower than the bottom of the contact part of the diagnostic cover, and the negative pressure chamber is formed by the sealing ring and the corresponding side of the diagnostic cover.

[0013] The beneficial effects of this invention are as follows: When the pulse diagnosis instrument of this invention is used, it includes a diagnostic cover placed on the skin outside the radial artery of the patient. The inflation and deflation unit introduces gas into the diagnostic cover through the air port of the diagnostic cover, applying a certain pressure to the target radial artery, simulating the pressure applied to the radial artery by a doctor when taking a pulse. The displacement sensor detects the rebound of the pressed area and reflects the pulse intensity in the rebound displacement value, thereby realizing the perception of the pulse. This invention does not involve a flexible sensing surface, thus solving the problem of pressure transmission error caused by the presence of a flexible sensing surface. Attached Figure Description

[0014] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of this disclosure are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding portions, wherein: Figure 1 This is a schematic diagram of the structure of one embodiment of a pulse diagnosis instrument according to the present invention; Figure 2 yes Figure 1 A schematic diagram showing the distribution of the diagnostic shield and negative pressure chamber; Figure 3 This is a diagram showing the usage status of a pulse diagnosis instrument according to the present invention; Figure 4 yes Figure 3 Diagram showing the diagnostic chamber in a negative pressure working environment during use; Figure 5 yes Figure 3 A schematic diagram showing the state of the diagnostic cavity after it is connected to the atmosphere; Figure 6 yes Figure 3 Diagram showing the diagnostic chamber in a positive pressure working environment. Figure 7 In this invention, the skin rebound contour map of the detection area detected by the displacement sensor after the diagnostic cavity applies different pressures to the skin in the detection area; 1. Sealing ring; 2. Diagnostic hood contact part; 3. Diagnostic chamber; 4. Left negative pressure port; 5. Diagnostic hood; 6. Displacement sensor; 7. Diagnostic hood air port; 8. Right negative pressure port; 9. Atmospheric connection port; 10. Valve assembly; 11. Air pump; 12. Left negative pressure chamber; 13. Right negative pressure chamber; 14. Patient's limb; 15. Radial artery; 16. Skin in the detection area. Detailed Implementation

[0015] To facilitate understanding of the present invention, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0016] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0017] An embodiment of a pulse diagnosis device in this invention is as follows: Figures 1-7 As shown: The diagnostic cover 5 has an open diagnostic port at the bottom. The inner cavity of the diagnostic cover 5 forms a diagnostic chamber 3. The diagnostic cover 5 is provided with a diagnostic cover air port 7 that communicates with the vibration chamber. A diagnostic cover air port switch valve is connected to the diagnostic cover air port 7. The width of the diagnostic chamber gradually increases from top to bottom in the left and right direction. The bottom of the diagnostic cover is a diagnostic cover contact part 2 for contact with the patient's skin. The diagnostic cover contact part 2 is a rectangular structure that extends in the front-back direction in length and in the left-right direction in width.

[0018] The diagnostic cover is equipped with a diagnostic cover fixing structure for securing the diagnostic cover to the patient's limb. In this embodiment, the diagnostic cover fixing structure includes negative pressure chambers located on the left and right sides of the diagnostic cover. The negative pressure chamber located on the left is called the left negative pressure chamber 12, and the negative pressure chamber located on the right is called the right negative pressure chamber 13. A left negative pressure port 4 is provided at the upper end of the left negative pressure chamber, and a right negative pressure port 8 is provided at the upper end of the right negative pressure chamber. A corresponding negative pressure port switch valve is provided on both the left negative pressure port 4 and the right negative pressure port 8.

[0019] The diagnostic cover is surrounded by a sealing ring 1 for contact with the patient's skin. The bottom of the sealing ring is lower than the bottom of the contact part 2 of the diagnostic cover. The negative pressure chamber is formed by the sealing ring and the corresponding side of the diagnostic cover.

[0020] The pulse diagnosis device also includes a gas filling / defilling unit connected to the air inlet of the diagnostic mask. This unit includes an air pump 11, whose air inlet is connected to a valve assembly 10. The valve assembly 10 has an atmospheric connection port 9. The valve assembly 10 is also connected to a first air path connected to the air inlet of the diagnostic mask, a second air path connected to the left negative pressure port, and a second air path connected to the right negative pressure port. The diagnostic chamber switches between negative pressure, depressurization, and positive pressure environments via the first air path. The left negative pressure chamber switches between negative pressure and depressurization environments via the first air path, and the right negative pressure chamber switches between negative pressure and depressurization environments via the second air path.

[0021] The diagnostic cover is equipped with a displacement sensor 6 that faces the patient's skin between the contact portions of the diagnostic cover. In this embodiment, the displacement sensor 6 is an area array displacement sensor capable of area scanning. The displacement sensor is fixed to the top of the diagnostic cover, and the measuring head of the displacement sensor extends into the inside of the diagnostic cover. The laser emitted by the measuring head of the displacement sensor can directly irradiate the skin in the detection area.

[0022] When using, such as Figure 3 As shown, the diagnostic cover is placed on the skin surface corresponding to the radial artery 15 of the patient's limb 14. The left negative pressure chamber 12 and the right negative pressure chamber 13 create a negative pressure environment. The diagnostic cover contact part at the bottom of the cover is firmly attached to the patient's skin. The skin inside the diagnostic cover contact part is called the detection area skin 16. Subsequently, as... Figure 4 As shown, diagnostic chamber 3 applies negative pressure aspiration to the skin in the detection area. The negative pressure aspiration pressure is F1. This is done to expand the skin in the detection area. Subsequently, as... Figure 5 As shown, when the diagnostic cavity is depressurized, the skin in the test area wrinkles. This prevents the tight skin from affecting the outward transmission of pressure to the radial artery when positive pressure is applied later.

[0023] Then as Figure 6 As shown, the diagnostic chamber is in a positive pressure environment with a positive pressure of F2, where F2 < |F1|, simulating the doctor's pressure on the pulse, making it easier to perceive the pulse rebound after pressure. Figure 7The left-hand image shows the contour map of skin rebound in the detection area detected by the displacement sensor when F2 is the pressure corresponding to 60 mmHg; Figure 7 The right-hand side of the figure shows the contour map of skin rebound in the detection area detected by the displacement sensor when F2 corresponds to a pressure of 120 mmHg. Figure 7 The top and bottom contour maps of skin elasticity in the two detection areas in the left-hand image are shown. The view at the bottom is a top view of the view at the top. Figure 7 The top and bottom contour maps of the skin elasticity in the two detection areas shown in the right-hand image are top views of the top view.

[0024] In this invention, the rebound pressure detection in the prior art is replaced by rebound displacement (height) detection, which eliminates the need for some thin film structures, reduces pressure transmission loss caused by thin film pressure transmission, and also relaxes the skin in the detection area before pulse diagnosis, reducing pressure transmission loss caused by tight skin. In this way, the rebound value of the skin in the detection area can accurately characterize the radial artery rebound pressure pulse, providing a basis for accurate disease diagnosis.

[0025] The diagnostic mask is equipped with a displacement sensor that faces the patient's skin between the contact portions of the diagnostic mask and the contact area. In the foregoing description of this specification, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "linked" should be interpreted broadly. For example, the term "linked" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this specification, those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] Based on the above description in this specification, those skilled in the art will also understand that terms used, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not imply that the devices or elements involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0027] Furthermore, the terms "first" or "second," etc., used in this specification to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as indicating, explicitly or implicitly, relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this specification, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pulse diagnosis instrument, characterized in that: The device includes a diagnostic cover with an open diagnostic port at the bottom, a diagnostic cover contact portion at the bottom for contact with the patient's skin, a diagnostic cover fixing structure for fixing the diagnostic cover to the patient's limb, a diagnostic cover air vent on the diagnostic cover, an inflation / deflation unit connected to the diagnostic cover air vent, and a displacement sensor on the diagnostic cover for the patient's skin between the diagnostic cover contact portions.

2. The pulse diagnosis instrument according to claim 1, characterized in that: The displacement sensor is a planar array displacement sensor.

3. The pulse diagnosis instrument according to claim 1, characterized in that: The internal dimensions of the diagnostic cover gradually increase from top to bottom.

4. The pulse diagnosis instrument according to claim 3, characterized in that: The displacement sensor is fixed to the top of the diagnostic cover, and the measuring head of the displacement sensor extends into the inside of the diagnostic cover.

5. The pulse diagnosis instrument according to any one of claims 1 to 4, characterized in that: The diagnostic cover fixing structure is a strap-type fixing structure, or the diagnostic cover fixing structure includes negative pressure chambers disposed on the left and right sides and / or the front and rear sides of the diagnostic cover, and the inflation / deflation unit is connected to the negative pressure chambers.

6. The pulse diagnosis instrument according to claim 5, characterized in that: The diagnostic cover is surrounded by a sealing ring at the bottom for contact with the patient's skin. The bottom of the sealing ring is lower than the bottom of the contact part of the diagnostic cover. The negative pressure chamber is formed by the sealing ring and the corresponding side of the diagnostic cover.

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