Nutrition metabolism monitoring device and method

Abstract

The invention relates to the technical field of nutrition metabolism monitoring, and discloses a nutrition metabolism monitoring device, which comprises a mobile vehicle body, a nutrition metabolism detection host is arranged on the mobile vehicle body, the nutrition metabolism detection host is connected with a mask through a pipeline, and a rotary telescopic bracket is mounted at the top of the mobile vehicle body. A burn part recognition device is installed at the driving end of the rotary telescopic support and used for recognizing distribution of burn parts on the face of the patient. By arranging the telescopic assembly, when the mask is used, the distribution of burnt parts on the face of a patient can be recognized through the burnt part recognition device, and when the mask is worn for nutrition metabolism detection, the extending range of the telescopic assembly can be adjusted according to the burnt positions, so that the burnt positions of the patient are avoided, and meanwhile the patient can be protected from being damaged. Therefore, the comfort level of the patient is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of nutritional metabolism monitoring, and in particular to a nutritional metabolism monitoring device and method. Background Art

[0002] Nutritional support refers to dietary nutrition measures taken according to the principles of nutrition to treat or alleviate diseases and enhance the clinical effect of treatment, also known as therapeutic nutrition. Nutritional metabolism monitors provide strong data support for therapeutic nutrition.

[0003] Most hospitalized patients are at risk of malnutrition. If a patient loses 20% of his / her body weight within a month, simple malnutrition may lead to tissue and organ failure and death, regardless of the primary disease. Nutritional testing and evaluation have become particularly important.

[0004] At present, nutrition monitors determine the oxygen intake and carbon dioxide emissions of the human body through intuitive measurement, providing data support for clinicians' nutrition assessment. The above data is collected and tested by wearing a mask on the patient. This type of monitor is made of soft rubber material, which takes into account both comfort and airtightness. There are different sizes of straps according to different skull diameters. When in use, use the straps to fix the mask to the mouth and nose.

[0005] However, the masks in existing nutritional metabolism monitoring devices use straps, which exert a certain amount of pressure on the mouth and nose (the mask needs to maintain a certain seal with the face to ensure sufficient gas sampling). Although this has little effect on normal patients, for patients with facial burns, the mask will press on the burn area, causing discomfort to the patient. Summary of the invention

[0006] The purpose of the present invention is to solve the problems existing in the prior art and to propose a nutritional metabolism monitoring device and method.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: A nutrition metabolism monitoring device comprises a mobile body, a nutrition metabolism detection host is arranged on the mobile body, the nutrition metabolism detection host is connected to a mask through a pipeline, a rotating telescopic bracket is installed on the top of the mobile body, and a burn part identification device is installed on the driving end of the rotating telescopic bracket for identifying the distribution of burn parts on the patient's face; The inner side of the mask is provided with a plurality of telescopic components, which are retracted according to the burnt part of the patient's face to avoid the burnt part; A fitting piece is provided on the side of the telescopic assembly away from the mask, which is used to fit the patient's skin to achieve sealing at the facial fitting position.

[0008] Preferably, the telescopic assembly includes a first air pipe arranged on the inner side of the mask, an air inlet pipe connected to the top of the first air pipe and passing through the mask, an air bag connected to the bottom of the first air pipe, and a socket inserted on the outer surface of the mask through an air supply pipe, the air supply pipe is connected to an external air source, and the outer size of the air supply pipe is adapted to the inner size of the air inlet pipe.

[0009] Preferably, the inner middle portion of the airbag is connected to a support member via an elastic band, and the support member is installed inside the first air tube.

[0010] Preferably, the ends of the first air tube and the airbag are both in an equihexagonal shape, the size of the airbag is larger than the size of the first air tube, and the first air tubes are abutted against each other in pairs, and the airbags are abutted against each other in pairs.

[0011] Preferably, it also includes an extended mask, which is frame-shaped, and a second telescopic component is arranged on the inner side of the extended mask, and the second telescopic component has the same structure as the telescopic component, a slot is opened on the inner periphery of the top of the extended mask, and the bottom of the mask and the bottom of the extended mask are both provided with protruding plug-ins, and the plug-ins are adapted to the slots.

[0012] Preferably, the mask, the first trachea, the air inlet pipe, the air delivery pipe, the support member and the socket are all made of soft materials, the support member includes seven support balls, and the seven support balls are respectively located at six angle positions of the inner wall of the first trachea and the center position of the inner cavity of the first trachea, and the support balls located at the angle positions are connected to the support balls located at the center position through soft connecting rods, the support balls are provided with openings, and straps are provided on both sides of the mask surface.

[0013] Preferably, an embedding groove is provided on the inner wall of the slot, and a second airbag is embedded in the outer wall of the insert block.

[0014] A method for monitoring nutritional metabolism, using a nutritional metabolism monitoring device, comprises the following steps: The following steps are involved: Image preprocessing and face detection: Image acquisition: Use a camera to capture the patient's facial image.

[0015] Detect facial regions; Burn area detection: Color space conversion: converting grayscale images into a color space suitable for burn detection; Threshold segmentation: Set the threshold based on color features to separate possible burn areas; Contour detection: Use the contour detection algorithm to obtain the contour of the burn area and determine the safe area on the mask, that is, the area that does not overlap with the burn area; Mask position adjustment; Define the set of all possible inflation points on the mask; Set a fixed inflation volume for each inflation point; Initialize an empty collection to store the points selected for inflation; Select an inflation point in a safe area to inflate the mask; Collect breath gases to monitor nutritional metabolism; This also includes calculating the distance between each burn contour point and all inflation points on the mask and adjusting the inflation volume according to the distance.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention, by setting up a telescopic component, can identify the distribution of burn sites on the patient's face through a burn site identification device when in use. When wearing a mask for nutritional metabolism detection, the extension range of the telescopic component can be adjusted according to the burn site, so as to avoid the burn site of the patient while completing the wearing of the mask, thereby effectively improving the patient's comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of Example 1 of a nutrition metabolism monitoring device proposed by the present invention; Figure 2 This is a schematic diagram of a mask of Example 1 of a nutrition metabolism monitoring device proposed by the present invention; Figure 3 This is a schematic diagram of the inner side of a mask of Example 1 of a nutrition metabolism monitoring device proposed by the present invention; Figure 4 This is a schematic diagram of a telescopic component of Example 1 of a nutrition metabolism monitoring device proposed by the present invention; Figure 5 This is a schematic diagram of the first tracheal end of Example 1 of a nutrition metabolism monitoring device proposed by the present invention; Figure 6 This is a schematic diagram of the connection between the first trachea and the airbag of Example 1 of a nutrition metabolism monitoring device proposed by the present invention; Figure 7 This is a schematic diagram of the connection between the mask and the extended mask of Example 1 of a nutrition metabolism monitoring device proposed by the present invention; Figure 8 This is a front view of Example 2 of a nutritional metabolism monitoring device proposed by the present invention; Fig. 9 This is a schematic diagram of the telescopic component of Example 2 of a nutritional metabolism monitoring device proposed by the present invention.

[0018] In the figure: 1. mobile body; 2. nutrition metabolism detection host; 3. rotating telescopic bracket; 4. mask; 5. burn site identification device; 6. supporting sphere; 7. first air pipe; 8. air intake pipe; 9. air bag; 10. socket; 11. air pipe; 12. support member; 13. elastic band; 14. extended mask; 15. second telescopic component; 16. plug-in block; 17. slot; 20. rotating drive device; 21. connecting member. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Example

[0020] Reference Figure 1-Figure 7 A nutrition metabolism monitoring device comprises a mobile body 1, on which a nutrition metabolism detection host 2 is arranged, and the nutrition metabolism detection host 2 is connected to a mask 4 through a pipeline. The nutrition metabolism detection host 2 as a whole comprises a touch screen, a computer, an atmospheric pressure sensor, a flow rate sensor, a temperature and humidity sensor, an oxygen sensor, a carbon dioxide sensor, and a pump valve. After the mask 4 is worn, the oxygen intake and carbon dioxide emission of the human body are monitored by the sensor to estimate the nutrition consumption (this is the prior art and will not be described in detail here). A rotating telescopic bracket 3 is installed on the top of the mobile body 1, and a burn site identification device 5 is installed on the driving end of the rotating telescopic bracket 3. The rotating telescopic bracket 3 includes a retractable and rotatable device (such as a combination of a cylinder and a rotating motor) and an electric telescopic rod located above the device, which is convenient for hoisting the burn site identification device 5 to identify the distribution of burn sites on the patient's face; The inner side of the mask 4 is provided with a plurality of telescopic components, which are retracted according to the burnt part of the patient's face to avoid the burnt part; A fitting piece is provided on the side of the telescopic component away from the mask 4. The fitting piece is made of liquid silicone and is used to fit the patient's skin to achieve sealing at the facial fitting position.

[0021] In this embodiment, the telescopic assembly includes a first air pipe 7 arranged on the inner side of the mask 4, an air inlet pipe 8 connected to the top of the first air pipe 7 and penetrating the mask 4, an air bag 9 connected to the bottom of the first air pipe 7, and a socket 10 inserted on the outer surface of the mask 4 through an air pipe 11. The air pipe 11 is connected to an external air source, and the outer size of the air pipe 11 is adapted to the inner size of the air inlet pipe 8. The fitting is arranged on the outer surface of the air bag 9; The specific working process of completing the mask 4 to prevent the patient's face from being burned is as follows: In this embodiment, first of all, the mask 4 exists independently, so it is necessary to complete the wearing of the mask 4 first, but for the convenience of inflation, all the air supply pipes 11 are integrated on the socket 10, and the connection between the socket 10 and the mask 4 can be completed by inserting the air supply pipe 11 into the air inlet pipe 8. The mask 4 stays on the patient's face through the straps. At this time, all the telescopic components are in a retracted state, and the face is not sealed. At this time, the airbag 9 is inflated through an external air source (the external air source can correspond to one air source for each telescopic component, that is, through a total air inlet pipe 8 and several valves, the gas is controlled to be transported to several first air pipes 7 in sequence), the mask 4 is propped up, and the wearing of the mask 4 is completed.

[0022] In this embodiment, the inner middle part of the airbag 9 is connected to a support member 12 through an elastic band 13, and the support member 12 is installed inside the first trachea 7. The function of the support member 12 is that when the airbag 9 is not inflated, the airbag 9 can be pulled back into the first trachea 7 through the elastic band 13 to avoid the airbag 9 rubbing against the burn area in the early stage of wearing the mask 4.

[0023] In this embodiment, the end shapes of the first air tube 7 and the airbag 9 are both equilateral hexagonal. The size of the airbag 9 is larger than that of the first air tube 7, and the first air tubes 7 are abutted against each other, and the airbags 9 are abutted against each other. The purpose of the equilateral hexagon is to connect all the first air tubes 7 and can cover the entire mask 4. This design can perfectly adapt to the irregular changes in the edge of the burn area (for example, the edge is bent, and the adjacent first air tube 7 with the bevel is selected to inflate to adapt to the edge of the burn area). For example, there will be gaps between the circular designs, and the square design needs to be too small to achieve the same effect of the regular hexagon.

[0024] In this embodiment, an extended mask 14 is also included. The extended mask 14 is frame-shaped. A second telescopic component 15 is arranged on the inner side of the extended mask 14, and the second telescopic component 15 has the same structure as the telescopic component. A slot 17 is opened on the inner periphery of the top of the extended mask 14. The bottom of the mask 4 and the bottom of the extended mask 14 are both provided with a protruding plug-in block 16, and the plug-in block 16 is adapted to the slot 17. This design is aimed at the situation where the edge position of the mask 4 coincides with the burn site. In this case, the extended mask 14 can be added, and the edge of the mask 4 can be replaced by the edge of the extended mask 14 to avoid the burn site.

[0025] In this embodiment, the mask 4, the first trachea 7, the air inlet pipe 8, the air delivery pipe 11, the support member 12 and the socket 10 are all made of soft materials. The support member 12 includes seven support balls 6, and the seven support balls 6 are respectively located at six angle positions of the inner wall of the first trachea 7 and the center position of the inner cavity of the first trachea 7, and the support balls 6 located at the angle positions are connected to the support ball 6 located at the center position through a soft connecting rod. The support balls 6 are provided with openings through them. Straps are provided on both sides of the surface of the mask 4. Due to the curvature of the patient's face, it is necessary to set it to a flexible material. The specific material can be medical silicone. The design effect of the support member 12 is that when the mask 4 is bent, there will be extrusion deformation between the first trachea 7 and the first trachea 7. In order to prevent blockage at this position, the support ball 6 is designed. On the one hand, it can be connected to the elastic band 13, and on the other hand, it can limit the deformation of the first trachea 7. The external air source can use the opening to inflate the airbag 9.

[0026] In this embodiment, an embedding groove is provided on the inner wall of the slot 17, and a second airbag 9 is embedded in the outer wall of the plug block 16. The design of the embedding groove facilitates the inflating of the second airbag 9 after the plug block 16 is docked with the slot 17, which, on the one hand, facilitates the stability of the connection between the mask 4 and the extended mask 14, and on the other hand, improves the sealing.

[0027] In this embodiment, the burn site identification device 5 includes: The image preprocessing and face detection module is used to collect the patient's facial image using a camera.

[0028] A facial region detection module, used to detect facial regions; Burn area detection module, used to detect burn areas: A contour detection module for determining a safe area on the mask 4, i.e. an area that does not overlap with the burn area; The mask 4 adjustment module is used to select an inflation point in a safe area to inflate and prop up the mask 4. Example

[0029] Reference Figure 8-Figure 9 The main difference between this embodiment and embodiment 1 is that: In this embodiment, the mask 4, the first air pipe 7, the air inlet pipe 8, the air delivery pipe 11, the support member 12 and the socket 10 are all made of hard materials.

[0030] In this embodiment, a rotating drive device 20 is installed above the rotating telescopic bracket 3, and the driving end of the rotating drive device 20 is connected to the surface of the mask 4 through a connecting piece 21, and the distance between the mask 4 and the end of the rotating telescopic bracket 3 is greater than the height of the burn site identification device 5.

[0031] The hard material can be designed for facial burns with mild symptoms and uncomplicated distribution. The rotating telescopic bracket 3 can be lowered. After the burn site identification device 5 identifies the burn site, the mask 4 is lowered to fit the patient's face, and then adaptive inflation can be performed at the burn site.

[0032] What needs to be explained here is that Fig. 9 In the figure, only a partial telescopic component is shown. The mask 4 itself has an arc. The telescopic component of the mask 4 is set according to the characteristics of the human face and does not represent a flat plate as shown in the figure.

[0033] This embodiment also provides a monitoring method for Embodiment 1 and Embodiment 2, as follows: A method for monitoring nutritional metabolism, using a nutritional metabolism monitoring device, comprises the following steps: 1. Image acquisition Use a camera to capture the patient's facial image, ensuring that the image is clear and includes the complete facial area; 2. Detect facial area Use facial detection algorithms (such as Haar features, HOG+SVM, deep learning models, etc.) to locate facial areas in images; 3. Burn area detection: Convert the image (grayscale or color) to a color space suitable for burn detection, such as HSV, YUV, or Lab color space.

[0034]

[0035] Thresholds are set based on color features to separate possible burn areas.

[0036] Formula: For the HSV color space, you can set a color range (such as the red area), and then compare whether the color value of each pixel is within the range.

[0037] For example, if the burn area is red, you can set the H value to be within a certain range (such as 0-30 or 330-360), and the S and V values ​​to be greater than a certain threshold; Use contour detection algorithms (such as Canny edge detection, Laplacian of Gaussian, etc.) to obtain the contour of the burn area; According to the contour of the burn area, a safe area on the mask 4 is determined, that is, an area that does not overlap with the burn area.

[0038] Specifically, this is achieved by calculating the minimum distance between each point on the mask 4 and the outline of the burn area, and setting a safety distance threshold to obtain a safe area; Morphological operations: Use dilation and erosion operations to remove noise and fill small holes; According to the design of the mask 4, define the set of all possible inflation points on the mask 4 P = { p 1, p 2,…, pn}; Set a fixed inflation volume for each inflation point V fixed; Initialize an empty set S to store the points selected for inflation; Select an inflation point in a safe area to inflate the mask 4: For each burn contour point c i , calculate its relationship with all inflation points on mask 4 p j Distance d ij .

[0039] According to distance d ij and safety distance thresholds to determine which inflation points are within the safety zone.

[0040] Select an inflation point in a safe area and perform an inflation operation to prop up the mask 4; The distance calculation can be done using the Euclidean distance formula:

[0041] in,( xi , yi ) is the burn contour point ci The coordinates of ( xj , yj ) is the inflation point pj The coordinates of .

[0042] Collect breath gases to monitor nutritional metabolism; The method further includes calculating the distance between each burn contour point and all the inflation points on the mask 4 and adjusting the inflation amount according to the distance; For example, you can use an inverse proportional function to adjust the inflation amount:

[0043] in, V ij It's an inflatable point p j For burn contour points c i Adjusted inflation volume, D max is the maximum distance threshold set, ϵ is a small constant to avoid division by zero errors.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A nutritional metabolism monitoring device, comprising a mobile body, on which a nutritional metabolism detection host is arranged, and the nutritional metabolism detection host is connected to a mask through a pipeline, characterized in that: A rotating telescopic bracket is installed on the top of the mobile vehicle body, and a burn site identification device is installed on the driving end of the rotating telescopic bracket for identifying the distribution of burn sites on the patient's face; The inner side of the mask is provided with a plurality of telescopic components, which are retracted according to the burnt part of the patient's face to avoid the burnt part; A fitting piece is provided on the side of the telescopic assembly away from the mask, which is used to fit the patient's skin to achieve sealing at the facial fitting position.

2. A nutritional metabolism monitoring device according to claim 1, characterized in that: The telescopic assembly includes a first air pipe arranged on the inner side of the mask, an air inlet pipe connected to the top of the first air pipe and passing through the mask, an air bag connected to the bottom of the first air pipe, and a socket inserted on the outer surface of the mask through an air supply pipe. The air supply pipe is connected to an external air source, and the outer size of the air supply pipe is adapted to the inner size of the air inlet pipe.

3. A nutritional metabolism monitoring device according to claim 2, characterized in that: The inner middle part of the airbag is connected with a support member through an elastic band, and the support member is installed inside the first air pipe.

4. A nutritional metabolism monitoring device according to claim 3, characterized in that: The end shapes of the first air tube and the airbag are both equihexagonal, the size of the airbag is larger than the size of the first air tube, and the first air tubes are abutted against each other in pairs, and the airbags are abutted against each other in pairs.

5. A nutritional metabolism monitoring device according to claim 4, characterized in that: It also includes an extended mask, which is frame-shaped. A second telescopic component is arranged on the inner side of the extended mask, and the second telescopic component has the same structure as the telescopic component. A slot is opened on the inner periphery of the top of the extended mask, and protruding plug-ins are arranged on the bottom of the mask and the bottom of the extended mask, and the plug-ins are adapted to the slots.

6. A nutritional metabolism monitoring device according to claim 5, characterized in that: The mask, the first air pipe, the air inlet pipe, the air delivery pipe, the support member and the socket are all made of hard materials.

7. A nutritional metabolism monitoring device according to claim 5, characterized in that: The mask, the first trachea, the air inlet pipe, the air delivery pipe, the support member and the socket are all made of soft materials. The support member includes seven support balls, and the seven support balls are respectively located at six angle positions of the inner wall of the first trachea and the center position of the inner cavity of the first trachea, and the support balls located at the angle positions are connected to the support balls located at the center position through soft connecting rods. Openings are opened through the support balls, and straps are provided on both sides of the mask surface.

8. A nutritional metabolism monitoring device according to claim 5, characterized in that: An embedding groove is provided on the inner wall of the slot, and a second air bag is embedded on the outer wall of the insert block.

9. A nutritional metabolism monitoring device according to claim 6, characterized in that: A rotary drive device is installed above the rotary telescopic bracket, and a driving end of the rotary drive device is connected to the mask surface through a connecting piece. The height between the mask and the end of the rotary telescopic bracket is greater than the height of the burn site identification device.

10. A method for monitoring nutritional metabolism, using a nutritional metabolism monitoring device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Image preprocessing and face detection: Image acquisition: Use a camera to capture the patient's facial image; Detect facial regions; Burn area detection: Color space conversion: converting grayscale images into a color space suitable for burn detection; Threshold segmentation: Set the threshold based on color features to separate possible burn areas; Contour detection: Use the contour detection algorithm to obtain the contour of the burn area and determine the safe area on the mask, that is, the area that does not overlap with the burn area; Mask position adjustment; Define the set of all possible inflation points on the mask; Set a fixed inflation volume for each inflation point; Initialize an empty collection to store the points selected for inflation; Select an inflation point in a safe area to inflate the mask; Collect breath gases to monitor nutritional metabolism; This also includes calculating the distance between each burn contour point and all inflation points on the mask and adjusting the inflation volume according to the distance.

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