CN221083617U

CN221083617U - Optical fiber pad

Info

Publication number: CN221083617U
Application number: CN202321968351.2U
Authority: CN
Inventors: 程松林; 丁司炜; 黄国良; 黄陈浩
Original assignee: Wuhan Kai Ruipu Medical Technology Co ltd
Current assignee: Wuhan Kai Ruipu Medical Technology Co ltd
Priority date: 2023-07-25
Filing date: 2023-07-25
Publication date: 2024-06-07
Anticipated expiration: 2033-07-25

Abstract

The utility model proposes an optical fiber pad comprising: the body pad and the optical fiber are horizontally arranged relative to the bed surface; the optical fiber is paved in the body pad; the body cushion comprises an upper shell, a lower shell and elastic filler, wherein the upper shell is arranged at one end of the body cushion far away from the bed surface; the lower shell is arranged at one end of the body cushion close to the bed surface; one end of the lower shell, which is far away from the bed surface, is arranged on the inner side of the upper shell and is in sliding fit with the upper shell along a first preset direction; the first preset direction is the normal direction of the bed surface; one end of the elastic filler is fixedly arranged in the lower shell and used for wrapping the optical fiber; the other end of the elastic filler extends outwards to the inner side of the upper shell along the first preset direction and is fixedly connected with one end, far away from the lower shell, of the upper shell.

Description

Optical fiber pad

Technical Field

The utility model relates to the technical field of physiological parameter monitoring, in particular to an optical fiber pad.

Background

Physiological parameters such as pulse and heart rate of a human body are an important standard for judging whether the human body is healthy or not. The dominant way to monitor these physiological parameters is to use vital sign monitoring fiber pads based on fiber optic sensing technology.

At present, the optical fiber pad is easy to break in the using process, so that the optical fiber pad cannot be used continuously, and the reason for breaking the optical fiber is as follows: when the external pressure is concentrated on a certain point on the optical fiber pad, the optical fiber in the point is deformed more, so that the optical fiber is easier to break. Meanwhile, in the using process, when the distance between the optical fiber pad and a human body is smaller than 60mm, the human body signal received by the optical fiber pad is large, the later signal processing difficulty is large, and the optical fiber is easily deformed to be large and broken, so that more optical fiber pads can be used under mattresses with the thickness of more than 60mm at present, and the using environment is greatly limited.

The Chinese patent publication No. CN109106372A discloses a vital sign monitoring optical fiber pad based on an optical fiber sensing technology, which comprises an optical fiber pad, wherein the optical fiber pad comprises an induction shell, and an optical fiber grating is arranged in the induction shell; during monitoring, a person lies on the optical fiber pad or sits on the optical fiber pad to cause deformation of the induction shell, the optical fiber grating in the optical fiber pad is also deformed, the optical fiber demodulator receives signals sent by the optical fiber grating, corresponding calculation and arrangement are made, and the results are sent to the processor, processed by the processor and displayed on the display screen.

The inventor finds that the root cause is that when the optical fiber pad is subjected to external pressure, the deformation of the optical fiber inside the optical fiber pad is larger, and the optical fiber is easily broken, so that in order to solve the technical problems, it is necessary to provide an optical fiber pad with smaller deformation and less fiber breakage.

Disclosure of utility model

In view of this, the utility model provides an optical fiber pad, which can disperse the external pressure, so that the deformation of the optical fiber is small, the optical fiber is not easy to break, and meanwhile, the human body signal received by the optical fiber pad can not be very large, thereby not only facilitating the later signal processing, but also enabling the optical fiber pad to be used in contact with the human body, and being less limited by the use environment.

The technical scheme of the utility model is realized as follows: the utility model provides an optical fiber pad, which comprises a body pad and an optical fiber, wherein,

The body cushion is horizontally arranged relative to the bed surface;

The optical fiber is paved in the body pad;

The body cushion comprises an upper shell, a lower shell and elastic filler, wherein,

The upper shell is arranged at one end of the body cushion far away from the bed surface;

the lower shell is arranged at one end of the body cushion close to the bed surface; one end of the lower shell, which is far away from the bed surface, is arranged on the inner side of the upper shell and is in sliding fit with the upper shell along a first preset direction, wherein the first preset direction is the normal direction of the bed surface;

one end of the elastic filler is fixedly arranged in the lower shell and used for wrapping the optical fiber; the other end of the elastic filler extends outwards to the inner side of the upper shell along the first preset direction and is fixedly connected with one end of the upper shell, which is far away from the lower shell.

On the basis of the technical scheme, preferably, the body pad further comprises a plurality of springs, wherein the springs are arranged between the upper shell and the lower shell and movably penetrate through the elastic filler along a first preset direction; one ends of the springs are propped against the upper shell, and the other ends of the springs are fixedly connected with the lower shell.

On the basis of the technical scheme, preferably, the elastic filler is provided with a plurality of matching holes penetrating along a first preset direction, and the springs are correspondingly arranged in the matching holes one by one; the inner diameters of the plurality of matching holes are all larger than the outer diameters of the plurality of springs.

On the basis of the technical proposal, preferably, the springs comprise an inner rod, a sleeve and a compression spring, wherein,

One end of the inner rod is fixedly connected with the lower shell; the other end of the inner rod is arranged on the inner side of the sleeve and is in sliding fit with the sleeve along a first preset direction;

one end of the sleeve, which is far away from the inner rod, is fixedly connected with the upper shell;

The compression spring is sleeved on the side part of the inner rod; one end of the compression spring is propped against the lower shell, and the other end of the compression spring is propped against one end of the sleeve close to the lower shell.

On the basis of the above technical solution, preferably, a cavity is formed between the side portion of the elastic filler and the side portion of the lower case.

On the basis of the above technical solution, preferably, the elastic filler includes a lower filler and an upper filler, wherein,

The lower filler is fixedly arranged in the lower shell;

One end of the upper filler is fixedly arranged in the upper shell, and the other end of the upper filler extends outwards to the inside of the lower shell along a first preset direction;

The optical fiber is clamped between the upper and lower fillers.

On the basis of the technical scheme, preferably, the optical fiber is laid in a serpentine shape on the body pad.

On the basis of the technical scheme, preferably, the upper shell and the lower shell are both PC shells.

On the basis of the technical scheme, preferably, the elastic filler is EVA foam.

Compared with the prior art, the optical fiber pad has the following beneficial effects:

(1) Through setting up the body pad and including epitheca and inferior valve, epitheca and inferior valve sliding fit, and be equipped with elastic filler between epitheca and the inferior valve for the body pad can realize elasticity flexible, is used for buffering external pressure, when receiving external pressure, the power can be dispersed by the epitheca, and can not cause the impact force of a certain point too big, thereby make the deformation of optic fibre less, be difficult for breaking fine, make the human signal that optic fibre pad received simultaneously can not very big, both make things convenient for later stage signal processing, can make optic fibre pad can use with human contact again, it is less to receive service environment's restriction.

(2) Through setting up the spring, further promote the effect of buffering external pressure, make the deformation of optic fibre little, be difficult for breaking the fine, also can not make the very big of signal change influence the monitoring, be convenient for use with human contact.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view of an optical fiber pad of the present utility model;

FIG. 2 is a shape diagram of an optical fiber of the present utility model;

FIG. 3 is a cross-sectional view of an optical fiber pad of the present utility model;

FIG. 4 is an enlarged view of point A of the present utility model;

FIG. 5 is a schematic view of a spring structure according to the present utility model;

FIG. 6 is an exploded view of an optical fiber mat according to the present utility model;

In the figure: the body pad 1, the optical fiber 2, the upper shell 11, the lower shell 12, the elastic filler 13, the spring 14, the matching hole 15, the cavity 16, the lower filler 131, the upper filler 132, the inner rod 141, the sleeve 142 and the compression spring 143.

Detailed Description

The following description of the embodiments of the present utility model will be made in detail and with reference to specific embodiments of the present utility model, but it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

As shown in fig. 1 to 6, an optical fiber pad of the present utility model comprises a body pad 1 and an optical fiber 2, wherein the body pad 1 is horizontally placed relative to a bed surface; the optical fiber 2 is paved inside the body pad 1; the body pad 1 comprises an upper shell 11, a lower shell 12 and an elastic filler 13, wherein the upper shell 11 is arranged at one end of the body pad 1 away from the bed surface; the lower shell 12 is arranged at one end of the body pad 1 close to the bed surface; one end of the lower shell 12, which is far away from the bed surface, is arranged on the inner side of the upper shell 11 and is in sliding fit with the upper shell 11 along a first preset direction; the first preset direction is the normal direction of the bed surface; one end of the elastic filler 13 is fixedly arranged in the lower shell 12 and used for wrapping the optical fiber 2; the other end of the elastic packing 13 extends outward in the first preset direction to the inside of the upper case 11 and is fixedly connected with one end of the upper case 11 away from the lower case 12.

Specifically, the upper shell 11, the lower shell 12 and the elastic filler 13 form the elastically stretchable body pad 1, the stretching direction is the first preset direction, when the body pad 1 receives external pressure, the received pressure can be buffered, the external pressure is dispersed on the upper shell 11, and the impact force of a certain point cannot be overlarge, so that the deformation of the optical fiber 2 is small, the fiber breakage is not easy, meanwhile, the human body signal received by the optical fiber pad cannot be large, the later signal processing is convenient, the optical fiber pad can be used in contact with a human body, and the limitation of the use environment is small.

As a preferred embodiment of the optical fiber pad, the body pad 1 further comprises a plurality of springs 14, wherein the plurality of springs 14 are arranged between the upper shell 11 and the lower shell 12 and movably penetrate through the elastic filler 13 along a first preset direction; one end of each of the springs 14 is propped against the upper shell 11, and the other ends of the springs 14 are fixedly connected with the lower shell 12.

Specifically, when the body pad 1 is stressed, the plurality of springs 14 can provide upward supporting force for the upper shell 11, so that the effect of buffering external pressure is further improved, the deformation of the optical fiber 2 is small, the optical fiber is not easy to break, the monitoring is not influenced by the fact that the signal is large, and the optical fiber is convenient to contact with a human body.

As a preferred embodiment of the optical fiber pad, the elastic filler 13 is provided with a plurality of matching holes 15 penetrating along a first preset direction, and a plurality of springs 14 are arranged in the plurality of matching holes 15 in a one-to-one correspondence manner; the inner diameters of the plurality of fitting holes 15 are each larger than the outer diameters of the plurality of springs 14.

Specifically, the fitting hole 15 is used for installing the spring 14, so that the spring 14 does not interfere with the elastic filler 13 when expanding and contracting, and the inner diameter of the fitting hole 15 is larger than the outer diameter of the spring 14, so that the spring 14 can freely expand and contract in the fitting hole 15.

As a preferred embodiment of the optical fiber pad, the plurality of springs 14 each comprise an inner rod 141, a sleeve 142 and a compression spring 143, wherein one end of the inner rod 141 is fixedly connected with the lower shell 12; the other end of the inner rod 141 is arranged at the inner side of the sleeve 142 and is in sliding fit with the sleeve 142 along a first preset direction; one end of the sleeve 142, which is far away from the inner rod 141, is fixedly connected with the upper shell 11; the compression spring 143 is sleeved on the side of the inner rod 141; one end of the compression spring 143 abuts against the lower case 12, and the other end of the compression spring 143 abuts against one end of the sleeve 142 adjacent to the lower case 12.

Specifically, the inner rod 141 is connected to the lower case 12 by screw fastening, and the sleeve 142 is also connected to the upper case 11 by screw fastening, so that when the body pad 1 is stressed, the inner rod 141 slides relative to the sleeve 142, the compression spring 143 is compressed, and an upward force is applied to the upper case 11 during compression, thereby protecting the optical fiber 2.

As a preferred embodiment of the optical fiber pad, a cavity 16 is formed between the side of the elastic filler 13 and the side of the lower case 12, so as to match the deformation of the elastic filler 13, and make the elastic filler 13 in the deformation not easy to squeeze with the lower case 12.

As a preferred embodiment of the optical fiber mat, the elastic packing 13 includes a lower packing 131 and an upper packing 132, wherein the lower packing 131 is fixedly disposed inside the lower case 12; one end of the upper packing 132 is fixedly disposed inside the upper case 11, and the other end of the upper packing 132 extends outwardly to the inside of the lower case 12 in a first preset direction; the optical fiber 2 is sandwiched between the upper filler 132 and the lower filler 131.

Specifically, the lower filler 131 is fixedly connected with the lower shell 12 through a double sided adhesive tape, the upper filler 132 is fixedly connected with the upper shell 11 through a double sided adhesive tape, the optical fiber 2 is clamped between the upper filler 132 and the lower filler 131, the installation of the optical fiber 2 is facilitated, and the optical fiber 2 is also conveniently separated from the elastic filler 13, so that the replacement of the optical fiber 2 is facilitated.

As a preferred embodiment of the optical fiber pad, the optical fiber 2 is laid in a serpentine shape on the body pad 1, so as to increase the monitoring surface.

As a preferred embodiment of the optical fiber pad, the upper case 11 and the lower case 12 are PC cases, and when an external pressure is applied, a force is dispersed on the upper case 11 without causing an impact force at a certain point, thereby protecting the optical fiber 2.

As a preferred embodiment of the optical fiber pad, the elastic filler 13 is a sponge block or an EVA foam block, preferably an EVA foam block, with the hardness of 30 degrees, and the EVA foam is used for better vibration transmission than the sponge, so that the monitoring precision is improved.

In addition, the spring 14 can also adopt a traditional spiral spring, and when the upper shell 11 is stressed, the upward force of the upper shell 11 is given by the traditional spiral spring, so that the force unloading buffer is realized.

The application method of the optical fiber pad comprises the following steps:

Firstly, after the human body applies pressure to the optical fiber pad, the elastic expansion buffer force of the body pad 1 is released, the pressure is dispersed by the upper shell 11 made of PC material, so that the deformation of the optical fiber pad and the optical fiber 2 is smaller, the optical fiber 2 is not easy to break, and the service life is prolonged.

And secondly, the human body signals received by the optical fiber pad can not be very large through buffering and unloading force, so that the optical fiber pad can be conveniently used for later signal processing and can be used in contact with a human body, and the optical fiber pad is less limited by the use environment.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. An optical fiber pad comprises a body pad (1) and an optical fiber (2), wherein,

The body pad (1) is horizontally arranged relative to the bed surface;

the optical fiber (2) is paved in the body pad (1);

The method is characterized in that: the body pad (1) comprises an upper shell (11), a lower shell (12) and an elastic filler (13), wherein,

The upper shell (11) is arranged at one end of the body pad (1) far away from the bed surface;

The lower shell (12) is arranged at one end of the body pad (1) close to the bed surface; one end of the lower shell (12) far away from the bed surface is arranged at the inner side of the upper shell (11) and is in sliding fit with the upper shell (11) along a first preset direction; the first preset direction is the normal direction of the bed surface;

One end of the elastic filler (13) is fixedly arranged in the lower shell (12) and is used for wrapping the optical fiber (2); the other end of the elastic filler (13) extends outwards to the inner side of the upper shell (11) along the first preset direction and is fixedly connected with one end, far away from the lower shell (12), of the upper shell (11).

2. An optical fiber mat as recited in claim 1, wherein: the body pad (1) further comprises a plurality of springs (14), wherein the springs (14) are arranged between the upper shell (11) and the lower shell (12) and movably penetrate through the elastic filler (13) along a first preset direction; one end of each of the springs (14) is propped against the upper shell (11), and the other ends of the springs (14) are fixedly connected with the lower shell (12).

3. An optical fiber mat as recited in claim 2, wherein: the elastic filler (13) is provided with a plurality of matching holes (15) penetrating along a first preset direction, the springs (14) are arranged in the matching holes (15) in a one-to-one correspondence mode, and the inner diameters of the matching holes (15) are larger than the outer diameters of the springs (14).

4. A fiber optic pad according to claim 3, wherein: the springs (14) comprise an inner rod (141), a sleeve (142) and a compression spring (143), wherein,

One end of the inner rod (141) is fixedly connected with the lower shell (12); the other end of the inner rod (141) is arranged on the inner side of the sleeve (142) and is in sliding fit with the sleeve (142) along a first preset direction;

One end of the sleeve (142) far away from the inner rod (141) is fixedly connected with the upper shell (11);

The compression spring (143) is sleeved on the side part of the inner rod (141); one end of the compression spring (143) is abutted against the lower shell (12), and the other end of the compression spring (143) is abutted against one end of the sleeve (142) close to the lower shell (12).

5. An optical fiber mat as recited in claim 4, wherein: a cavity (16) is formed between the side of the elastic filler (13) and the side of the lower shell (12).

6. An optical fiber mat as recited in claim 5, wherein: the elastic filler (13) comprises a lower filler (131) and an upper filler (132), wherein,

The lower filler (131) is fixedly arranged in the lower shell (12);

One end of the upper filler (132) is fixedly arranged in the upper shell (11), and the other end of the upper filler (132) extends outwards to the inside of the lower shell (12) along a first preset direction;

The optical fiber (2) is sandwiched between an upper filler (132) and a lower filler (131).

7. An optical fiber mat as recited in claim 6, wherein: the optical fiber (2) is laid in a serpentine shape on the body pad (1).

8. An optical fiber mat as recited in claim 7, wherein: the upper shell (11) and the lower shell (12) are PC shells.

9. An optical fiber mat as recited in claim 8, wherein: the elastic filler (13) is EVA foam block.