Human body sign monitoring mattress based on optical fiber sensing

Abstract

The utility model discloses a human body sign monitoring mattress based on optical fiber sensing, which belongs to the technical field of intelligent health care and comprises a flexible attaching layer, an upper soft fixing layer, a lower soft fixing layer, a reference optical fiber, a sensing optical fiber and a hard bottom plate, the attaching layer is arranged on the upper surface of the upper soft fixing layer; the upper soft fixing layer first subarea and the lower soft fixing layer first subarea are arranged on the two sides of the reference optical fiber and clamp and fix the reference optical fiber; the upper soft fixing layer second subarea and the lower soft fixing layer second subarea are arranged on the two sides of the sensing optical fiber and wrap, clamp and fix the sensing optical fiber; and the hard bottom plate is arranged at the bottom of the lower soft fixing layer. According to the utility model, physical sign monitoring is carried out when an indoor user lies in bed, acquisition of breathing heart rate signals of a human body can be realized only by placing the sensing pad under a pillow, signal demodulation is carried out by the terminal box, and monitoring of vital sign signals of the human body in daily life is realized.

Description

Technical Field

[0001] The utility model belongs to the field of intelligent health care technology, and more specifically, relates to a human body sign monitoring mattress based on optical fiber sensing. Background Art

[0002] In the field of modern medical care and health monitoring, the collection and monitoring of individual physiological data has become increasingly important. Therefore, some studies have proposed the concept of intelligent monitoring. This means that through external equipment, without interfering with the normal production and life of the human body, the physiological characteristics of the human body, such as breathing, heart rate, pulse rhythm and other data, are measured and recorded, and the human body's physical condition is inferred through the analysis of the measurement results, and timely feedback is given to the subjects, so that they can have a better understanding of their own physical health status, and on this basis, adjust their own living habits more scientifically, thereby achieving the effect of preventing diseases.

[0003] Most of the existing vital sign monitoring devices have the following pain points: 1. Large limitations, strong operation dependence, and low tester comfort; 2. The sensor structure is complex, the cost is high, and it is not suitable for long-term continuous measurement; 3. At present, vital sign monitoring devices cannot predict the risk and warn of diseases. Therefore, there is an urgent need for a vital sign monitoring device to solve a series of pain points in existing technologies. Utility Model Content

[0004] In view of the above defects or improvement needs of the prior art, the utility model provides a human vital sign monitoring mattress based on optical fiber sensing, thereby solving the technical problems that the existing vital sign monitoring equipment needs to be carried around and cannot perform continuous monitoring while lying in bed.

[0005] To achieve the above-mentioned object, according to one aspect of the utility model, a mattress for monitoring human vital signs based on optical fiber sensing is provided, comprising: a flexible attachment layer, an upper soft fixing layer, a lower soft fixing layer, a reference optical fiber, a sensing optical fiber and a hard bottom plate;

[0006] The attachment layer, the upper soft fixed layer, the lower soft fixed layer and the hard bottom plate are stacked in sequence;

[0007] The attachment layer is arranged on the upper surface of the upper soft fixing layer;

[0008] The upper soft fixed layer is provided with a first partition of the upper soft fixed layer and a second partition of the upper soft fixed layer; the lower soft fixed layer is provided with a first partition of the lower soft fixed layer and a second partition of the lower soft fixed layer;

[0009] The first partition of the upper soft fixing layer and the first partition of the lower soft fixing layer are arranged on both sides of the reference optical fiber, and the reference optical fiber is clamped and fixed; the second partition of the upper soft fixing layer and the second partition of the lower soft fixing layer are arranged on both sides of the sensing optical fiber, and the sensing optical fiber is clamped and fixed;

[0010] The hard bottom plate is arranged at the bottom of the lower soft fixing layer.

[0011] Preferably, the first partition of the upper soft fixing layer and the second partition of the upper soft fixing layer are connected by suturing; the first partition of the lower soft fixing layer and the second partition of the lower soft fixing layer are connected by suturing.

[0012] Preferably, the sizes of the first partition of the upper soft fixed layer and the first partition of the lower soft fixed layer are both 800 mm×200 mm.

[0013] Preferably, the sizes of the second partition of the upper soft fixed layer and the second partition of the lower soft fixed layer are both 800 mm×600 mm.

[0014] Preferably, the upper soft fixing layer and the lower soft fixing layer are both made of silicone.

[0015] Preferably, the material of the attachment layer is latex.

[0016] Preferably, the hard bottom plate is an acrylic plate.

[0017] Preferably, the reference optical fiber and the sensing optical fiber are both single-mode optical fibers.

[0018] In general, the above technical solutions conceived by the utility model can achieve the following beneficial effects compared with the prior art:

[0019] 1. The utility model proposes a human body sign monitoring mattress based on optical fiber sensing, which is easy to manufacture and low in cost. It uses the passivity of optical fiber for sensing detection and has a higher level of safety than electrical sensing solutions. It is easy to use and does not require users to wear it. Continuous monitoring can be performed while the user is in bed.

[0020] 2. The utility model proposes a human body sign monitoring mattress based on optical fiber sensing, which uses two soft fixed layers to sandwich the optical fiber. The soft fixed layer uses latex material, which can better conduct mechanical conduction and effectively improve the collection effect of vital sign signals.

[0021] 3. The utility model proposes a mattress for monitoring human vital signs based on optical fiber sensing. The sensing part is divided into two partitions. By setting a reference optical fiber and a sensing optical fiber, the mechanical stability can be improved and high-precision measurement can be achieved.

[0022] 4. The utility model proposes a mattress for monitoring human vital signs based on optical fiber sensing. The mattress is easy to manufacture, and the corresponding protective layer can well protect the sensing area.

[0023] 5. The utility model proposes a human body sign monitoring mattress based on optical fiber sensing, the bottom of which adopts a hard bottom plate, which can effectively resist noise and keep the appearance of the mattress from being easily deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a human body sign monitoring mattress based on optical fiber sensing of the utility model;

[0025] Figure 2 It is a plan schematic diagram of a mattress for monitoring human body signs based on optical fiber sensing according to the utility model;

[0026] Figure 3 The utility model is a schematic diagram of a leather-encapsulated sensor pad of a mattress for monitoring human vital signs based on optical fiber sensing.

[0027] In all the drawings, the same reference numerals are used to denote the same elements or structures, wherein: 1 - attachment layer; 2 - upper soft fixing layer; 3 - reference optical fiber; 4 - sensing optical fiber; 5 - lower soft fixing layer; 6 - hard base plate. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] like Figure 1-3 As shown, the utility model proposes a human body sign monitoring mattress based on optical fiber sensing, including a reference optical fiber 3 and a sensing optical fiber 4 wrapped in a middle layer of multi-layer materials. The optical fiber used is a single-mode optical fiber, which can ensure that the light wave mode in the optical path does not change and does not change the polarization state of the light. The use of bare fiber can obtain a better sensing effect; and the arm lengths of the reference optical fiber and the sensing optical fiber are equal.

[0030] To further explain, the upper layer of the reference optical fiber 3 and the sensing optical fiber 4 is an upper soft fixed layer 2, which is 800mm×800mm×3mm in size, and the upper soft fixed layer 2 is divided into two parts of 800mm×200mm×3mm and 800mm×600mm×3mm, and is foldable after being packaged with leather. As a preferred embodiment of the utility model, the upper soft fixed layer 2 is a silicone pad. The silicone material has good flexibility, good mechanical conduction performance, short solidification time, and excellent toughness after solidification. It can well sense the micro-pressure changes of respiratory heart rate and is very suitable for laboratory production of flexible sensing modules. The adjacent lower layer is a lower soft fixed layer 5 with the same structure as the upper soft fixed layer 2, and the lower soft fixed layer 5 is also a silicone pad.

[0031] Further explanation, below the lower soft fixed layer 5 is a hard bottom plate 6, which is 800mm×800mm×10mm in size. As a preferred embodiment of the utility model, the hard bottom plate 6 is an acrylic plate, which is a hard plate with good toughness. While isolating external noise, it can adapt to the deformation of the optical fiber caused by micro-pressure and improve mechanical sensitivity.

[0032] Further explanation, the top of the upper soft fixed layer 2 is covered with an attachment layer 1, which is 800mm×800mm×20mm in size. As a preferred embodiment of the utility model, the attachment layer 1 is a latex pad. The latex pad is a flexible shock-absorbing material that can improve the user's comfort and protect the sensing optical fiber. Finally, it is wrapped as a whole by leather, and the sensor module produced can achieve the effect of signal sensitization and noise reduction.

[0033] To further illustrate, the input and output ends of the reference optical fiber 3 and the sensing optical fiber 4 both use LC interfaces, and the upper and lower layers of the leather package are led out from the same side for connection with the terminal box module. The input ends of the reference optical fiber 3 and the sensing optical fiber 4 are symmetrically divided into two coherent light inputs by an external laser source through a 1×2 coupler, and the output ends are connected to a 3×3 coupler (actually only two optical fibers need to be connected), and divided into three beams of light with a phase difference of 120°, and then enter the terminal box module for signal demodulation and analysis.

[0034] The utility model encapsulates both the sensing optical fiber and the reference optical fiber in the mattress, which greatly saves the volume of the terminal box and avoids excessive bending of the optical fiber in a narrow space. At the same time, the sensing mattress is foldable to ensure that the reference optical fiber will not be affected by the monitoring. When in use, align the mattress with the head of the bed and place the sensing optical fiber area under the pillow to perform continuous vital sign monitoring when the user is in bed.

[0035] It is easy for those skilled in the art to understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mattress for monitoring human vital signs based on optical fiber sensing, characterized in that: include: A flexible attachment layer (1), an upper soft fixing layer (2), a lower soft fixing layer (5), a reference optical fiber (3), a sensing optical fiber (4) and a hard base plate (6); The attachment layer (1), the upper soft fixing layer (2), the lower soft fixing layer (5) and the hard bottom plate (6) are stacked in sequence; The upper soft fixed layer (2) is provided with an upper soft fixed layer first partition and an upper soft fixed layer second partition, and the upper soft fixed layer first partition is arranged on one side of the upper soft fixed layer second partition; the lower soft fixed layer (5) is provided with a lower soft fixed layer first partition and a lower soft fixed layer second partition, and the lower soft fixed layer first partition is arranged on one side of the lower soft fixed layer second partition; The first partition of the upper soft fixing layer and the first partition of the lower soft fixing layer are arranged on both sides of the reference optical fiber (3) to clamp and fix the reference optical fiber (3); the second partition of the upper soft fixing layer and the second partition of the lower soft fixing layer are arranged on both sides of the sensing optical fiber (4) to clamp and fix the sensing optical fiber (4).

2. The human body sign monitoring mattress based on optical fiber sensing according to claim 1, characterized in that: The first partition of the upper soft fixing layer and the second partition of the upper soft fixing layer are connected by suturing; the first partition of the lower soft fixing layer and the second partition of the lower soft fixing layer are connected by suturing.

3. The human body sign monitoring mattress based on optical fiber sensing according to claim 2, characterized in that: The sizes of the first partition of the upper soft fixing layer and the first partition of the lower soft fixing layer are both 800 mm×200 mm.

4. The human body sign monitoring mattress based on optical fiber sensing according to claim 3, characterized in that: The sizes of the second partition of the upper soft fixed layer and the second partition of the lower soft fixed layer are both 800 mm×600 mm.

5. The human body sign monitoring mattress based on optical fiber sensing according to claim 1, characterized in that: The materials of the upper soft fixing layer (2) and the lower soft fixing layer (5) are both silicone.

6. The human body sign monitoring mattress based on optical fiber sensing according to claim 1, characterized in that: The material of the attachment layer (1) is latex.

7. The human body sign monitoring mattress based on optical fiber sensing according to claim 1, characterized in that: The hard bottom plate (6) is an acrylic plate.

8. The human body sign monitoring mattress based on optical fiber sensing according to claim 1, characterized in that: The reference optical fiber (3) and the sensing optical fiber (4) are both single-mode optical fibers.

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