CN110507295A - Optical fiber inductive component and life physical sign monitoring device - Google Patents
Optical fiber inductive component and life physical sign monitoring device Download PDFInfo
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- CN110507295A CN110507295A CN201910773676.7A CN201910773676A CN110507295A CN 110507295 A CN110507295 A CN 110507295A CN 201910773676 A CN201910773676 A CN 201910773676A CN 110507295 A CN110507295 A CN 110507295A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/02444—Details of sensor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/746—Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/04—Arrangements of multiple sensors of the same type
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- Measuring And Recording Apparatus For Diagnosis (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention proposes a kind of optical fiber inductive component and life physical sign monitoring devices, utilize the with higher sensitivity feature of the curved optical fiber of serpentine, the stronger breath signal of monitoring signals, utilize the relatively low feature of helically bent and the curved optical fiber sensitivity of the figure of eight, the weaker heart rate signal of monitoring signals, the two is separately monitored, and can reduce breathing and tremble influences heartbeat signal；The curved optical fiber of serpentine and helically bent or the curved optical fiber of the figure of eight is arranged in a crossed manner, helically bent and the curved optical fiber sensitivity of the figure of eight on the one hand can be improved, improve the monitoring sensitivity to heartbeat；On the other hand the area of fiber optic disc around can be saved, the lesser monitoring area of torso model is adapted to；The third aspect while saving cost, reduces the problem of damage of enhanced sensitivity component causes occurrence probability without increasing other enhanced sensitivity components；Using small core optical fibers, compared to large core fiber, sensitivity is higher, more accurate to the monitoring of heartbeat.
Description
Technical field
The present invention relates to human body vital sign monitoring field more particularly to a kind of optical fiber inductive component and vital sign monitorings
Device.
Background technique
With the raising that the development and people of sociometric technique require quality of life, people examine own health
The demand of survey constantly increases.Respiratory rate and heart rate are most basic human body vital signs, and the ill sign of human body is often from different
It is reflected on normal respiratory rate and heart rate, therefore, realizes that the daily real-time monitoring of respiratory rate and heart rate assesses human health
With disease prevention important in inhibiting.Prolonged respiratory rate and heartbeat inspecting can be such that the health status of person monitored is supervised in real time
It surveys and grasps, but traditional monitoring system mostly uses the wearable device of contact, poor user experience, when monitoring, which is not only interfered, is supervised
Survey person's life, monitoring effect accuracy are also limited.
In recent years, contactless monitoring System Development is rapid.Sensor-based system based on Fibre Optical Sensor principle has sensitivity
High, the characteristics of comfort is good, electromagnetism interference, but currently based on the monitoring device system structure of fiber-optic grating sensor and production
Complex process, the signal of acquisition are needed by Wavelength demodulation, lead to that system cost is excessively high, demodulation method is complicated.And based on interference
It the monitoring system of principle or needs by phase demodulating, causes demodulation method complicated, system cost is high or interference signal pole
Complete breathing and heartbeat signal can not be accurately extracted vulnerable to the influence of environment, polarization and phase fading.
Detection system based on bending loss of optical fiber principle, which can reduce light phase decline and polarization, to be influenced, for breathing and the heart
The monitoring for jumping the vital signs such as signal is more accurate.It is found during actual monitoring, since what is generated in respiratory trembles
Effect is stronger, and heartbeat signal is fainter, and heartbeat signal is caused to be difficult to separate from the signal for being mixed with breathing and noise,
It is lower that heart rate signal monitors accuracy, and is difficult to ensure breathing and the synchronous demodulation of heart rate signal.
Summary of the invention
In view of this, the invention proposes a kind of reduction breathings to tremble on the optical fiber inductive component of heartbeat signal influence and life
Order semiotic monitor.
The technical scheme of the present invention is realized as follows:
On the one hand, the present invention provides a kind of optical fiber inductive components comprising at least one sensor fibre (1), feature
Be: the sensor fibre (1) includes and the twist curved line section or be in " 8 " word in the curved line section of serpentine
The curved line section of shape, it is described in the curved line section of serpentine and twist curved line section or be in that the figure of eight is curved
Line section is serially connected and top-bottom cross.
On the basis of above technical scheme, it is preferred that the sensor fibre (1) include be in the curved line section of serpentine,
And twist curved line section, it is described mutually to be gone here and there in the curved line section of serpentine with twist curved line section
Join simultaneously top-bottom cross.
On the basis of above technical scheme, it is preferred that the sensor fibre (1) include be in the curved line section of serpentine,
And be in the curved line section of the figure of eight, it is described mutual in the curved line section of the curved line Duan Yucheng figure of eight of serpentine
Series connection and top-bottom cross.
On the basis of above technical scheme, it is preferred that the sensor fibre (1) include be in the curved line section of serpentine,
And twist curved line section and be in the curved line section of the figure of eight, it is described in the curved line section of serpentine respectively with
Twist curved line section and it is serially connected and top-bottom cross in the curved line section of the figure of eight.
On the basis of above technical scheme, it is preferred that described is in the curved line section minimum bending radius 2cm of serpentine,
The twist curved curved line section minimum bending radius 2.5cm of the line Duan Yucheng figure of eight.
On the basis of above technical scheme, it is preferred that sensor fibre (1) core diameter is less than or equal to 5 μm.Further
Preferably, sensor fibre (1) core diameter is 5 μm.
Second aspect, the present invention provides a kind of life physical sign monitoring devices comprising laser light source (2), photoelectric conversion
Module (3) and vital sign parameter signals extraction and analysis module (4), further include optical fiber inductive component described in claim 1,
Laser light source (2), transmitting laser to sensor fibre (1)；
Sensor fibre (1) is separately connected laser light source (2) and photoelectric conversion module (3), curved after bearing ambient pressure
Song, the middle optical signal transmitted of sensor fibre (1) are lost at crooked position and are modulated；
Photoelectric conversion module (3), connection vital sign parameter signals extract and analysis module (4), convert optical signals to telecommunications
Number；
Vital sign parameter signals extract and analysis module (4), and vital sign information is extracted from electric signal.
It is further preferred that further including bluetooth communication module (5) and intelligent terminal (6), the bluetooth communication module (5) point
Not Lian Jie vital sign parameter signals extract with analysis module (4) and intelligent terminal (6), intelligent terminal (6) mentions vital sign parameter signals
It takes the vital sign information obtained with analysis module (4) to be shown, and sends police when vital sign information is more than preset value
Show information.
Still more preferably, the sensor fibre (1) is built in but is not limited in cushion, mattress, insole and pillow.
It is further preferred that the sensor fibre (1) bear the mode of ambient pressure include but is not limited to non-wearable and
Non-intrusion type.
Optical fiber inductive component of the invention and life physical sign monitoring device have the advantages that compared with the existing technology
(1) the with higher sensitivity feature of the curved optical fiber of serpentine is utilized, the weaker heart rate signal of monitoring signals utilizes spiral shell
Revolve shape bending and the relatively low feature of the curved optical fiber sensitivity of the figure of eight, the stronger breath signal of monitoring signals, the two point
Monitoring is opened, can reduce breathing and tremble influences heartbeat signal；
(2) the curved optical fiber of serpentine and helically bent or the curved optical fiber of the figure of eight is arranged in a crossed manner, on the one hand may be used
Helically bent and the curved optical fiber sensitivity of the figure of eight are improved, the monitoring sensitivity to heartbeat is improved；On the other hand it can save
The area of fiber optic disc around adapts to the lesser monitoring area of torso model；The third aspect, without increasing other enhanced sensitivity components, section
While cost-saving, the problem of damage of enhanced sensitivity component causes occurrence probability is reduced；
(3) small core optical fibers are used, compared to large core fiber, sensitivity is higher, more smart to the monitoring of heartbeat
It is quasi-.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the schematic diagram of the sensor fibre of the embodiment of the present invention 1；
Fig. 2 is the schematic diagram of the sensor fibre of the embodiment of the present invention 2；
Fig. 3 is the schematic diagram of the sensor fibre of the embodiment of the present invention 3；
Fig. 4 is the schematic diagram of the sensor fibre of the embodiment of the present invention 4；
Fig. 5 is the schematic diagram of the sensor fibre of the embodiment of the present invention 5；
Fig. 6 is the schematic diagram of life physical sign monitoring device of the invention；
Fig. 7 is breathing and the heartbeat inspecting figure of the embodiment of the present invention 1~5.
Specific embodiment
Below in conjunction with embodiment of the present invention, the technical solution in embodiment of the present invention is carried out clearly and completely
Description, it is clear that described embodiment is only some embodiments of the invention, rather than whole embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all
Other embodiments shall fall within the protection scope of the present invention.
As seen in figures 3-5, optical fiber inductive component of the invention comprising at least one sensor fibre 1.The sense light
Fibre 1 include be in the curved line section of serpentine, and twist curved line section or be in the curved line section of the figure of eight, institute
It states in the curved line section of serpentine and twist curved line section or is serially connected simultaneously in the curved line section of the figure of eight
Top-bottom cross.
Breathing can cause the expansion and contraction of torso model, and this strong vibration can be conducted by whole body, be caused
Extruding bending deformation to sensor fibre 1, heartbeat can cause the arterial vascular micro-vibration of Whole Body, this small vibration
The extruding to sensor fibre 1 can be generated.The vibration signal generated in torso model respiratory is very strong, and heartbeat causes
Vibration it is opposite want it is faint very much, therefore in the signal measured near thoracic cavity, breath signal can severe jamming to heart rate signal.
The present invention utilizes the with higher sensitivity feature of the curved optical fiber of serpentine, and the stronger breath signal of monitoring signals utilizes
Helically bent and the relatively low feature of the curved optical fiber sensitivity of the figure of eight, the weaker heart rate signal of monitoring signals, the two
It is separately monitored, suppresses breath signal, enhance heartbeat signal, can reduce breathing and tremble influences heartbeat signal.Serpentine is curved
Optical fiber and helically bent or the curved optical fiber of the figure of eight are arranged in a crossed manner, provide effect of enhanced sensitivity using the crosspoint of light, highlight
On the one hand helically bent and the curved optical fiber sensitivity of the figure of eight can be improved in heartbeat signal, improve the sensitive monitoring to heartbeat
Degree；On the other hand the area of fiber optic disc around can be saved, the lesser monitoring area of torso model is adapted to；The third aspect, without increasing
Other enhanced sensitivity components while saving cost, reduce the problem of damage of enhanced sensitivity component causes occurrence probability.
For the sensor fibre based on bending loss principle, the relationship of Curved Single-mode Optical loss and bending radius
Are as follows: when wavelength is near 1550, bending loss is maximum when bending radius 16mm or so, and in 19mm, bending loss is minimum, and
Loss is gone up again afterwards.Therefore, in the present invention, described is in the curved line section minimum bending radius 2cm of serpentine, is made curved in serpentine
Bent line section obtains maximum vibration dynamic response amplitude；The twist curved line Duan Yucheng figure of eight bending
Line section minimum bending radius 2.5cm, increase microbending loss when bending of the crosspoint to increase optical fiber, heartbeat signal can be made
It is remarkably reinforced.
For the sensor fibre based on bending loss principle, the light energy transmitted in fiber core is in straight light
When propagating in fibre, since fibre core is different from the refractive index of covering, total reflection, energy loss pole in a fiber are formed in fibre core
It is small.And the refractive index of inside of optical fibre can be made uneven when fibre-optical bending, destroy the condition of total reflection, part light energy easily by
Covering is revealed and causes energy loss, and the extruding that optical fiber local environment factor (especially vibrates) optical fiber caused by variation meeting is curved
Song is changed by energy loss of the monitoring light in transmission process, that is, can reach the purpose of monitoring environmental factor (vibration).
Based on principles above, inventor is had found by repetition test, and general single mode fiber core diameter is 9 μm, in bending process
In, the optical power only a small part in optical fiber is revealed, and the dynamic response in optical power is unobvious, it is difficult to be directly applied for exhaling
Inhale the detection with this small signal of heart rate.And the path that smaller core diameter passes through due to light is narrower, for the optical fiber of same length,
The total reflection point that light beam is propagated in small core optical fibers increased significantly, it means that the point that light is leaked to covering after stress bending increases
It is more, while the uneven influence that curved extruding and stretching reflect optical fiber is bigger, it is easier to destroy the condition of total reflection, light function
Rate loss is bigger, i.e. optical power is bigger for curved dynamic response amplitude, can be adapted for small signal detection completely.
Based on the above discovery, 1 core diameter of sensor fibre that the present invention uses is less than or equal to 5 μm.Specifically, the sense light
Fine 1 core diameter is 5 μm.Since the sensor fibre 1 is small core optical fibers, breathing with heartbeat caused by it is micro- caused by extruding
Small vibration causes fibre-optical bending to change, and can carry out to optical signal in the more sensitive small core optical fibers of bending loss apparent strong
Degree modulation, in the output of sensor fibre output end with the optical power of breathing and the variation of heartbeat correlation.
As shown in fig. 6, life physical sign monitoring device of the invention comprising laser light source 2, photoelectric conversion module 3, life
Sign extracts and sensing described in analysis module 4, bluetooth communication module 5 and intelligent terminal 6 and first aspect present invention
Optical fiber 1.
Laser light source 2, transmitting laser to sensor fibre 1；
Sensor fibre 1 is separately connected laser light source 2 and photoelectric conversion module 3, is bent after bearing ambient pressure, sensing
The optical signal transmitted in optical fiber 1 is lost at crooked position and is modulated；
Photoelectric conversion module 3, connection vital sign parameter signals extract and analysis module 4, convert optical signals to electric signal；
Vital sign parameter signals extract and analysis module 4, and vital sign information is extracted from electric signal；
Bluetooth communication module 5 is separately connected vital sign parameter signals and extracts and analysis module 4 and intelligent terminal 6, intelligent terminal
6 pairs of vital sign parameter signals extract the vital sign information obtained with analysis module 4 and show, and are more than in vital sign information
Information warning is sent when preset value.
Lead to specifically, the laser light source 2, photoelectric conversion module 3, vital sign parameter signals are extracted with analysis module 4, bluetooth
The prior art can be used in news module 5 and intelligent terminal 6.
Specifically, the sensor fibre 1 is built in but is not limited in cushion, mattress, insole and pillow.
Specifically, the mode that the sensor fibre 1 bears ambient pressure includes but is not limited to non-wearable and non-intrusion type.
Optical fiber inductive component of the invention is introduced below in conjunction with specific embodiment.
Embodiment 1
The optical fiber inductive component of the present embodiment, as shown in Figure 1, sensor fibre 1 uses twist curved line section, it will
It is extracted with analysis module 4, bluetooth communication module 5 and intelligence eventually with laser light source 2, photoelectric conversion module 3, vital sign parameter signals
End 6 is assembled into life physical sign monitoring device, and carries out breathing and heartbeat inspecting, obtains map shown in Fig. 4.
Embodiment 2
The optical fiber inductive component of the present embodiment, as shown in Fig. 2, it is in the curved line section of serpentine that sensor fibre 1, which uses, it will
It is extracted with analysis module 4, bluetooth communication module 5 and intelligence eventually with laser light source 2, photoelectric conversion module 3, vital sign parameter signals
End 6 is assembled into life physical sign monitoring device, and carries out breathing and heartbeat inspecting, obtains map shown in Fig. 7.
Embodiment 3
The optical fiber inductive component of the present embodiment, as shown in figure 3, the sensor fibre 1 includes being in the curved line of serpentine
Section, and twist curved line section, it is described mutual in the curved line section of serpentine and twist curved line section
Series connection and top-bottom cross.It is extracted and analysis module 4, bluetooth with laser light source 2, photoelectric conversion module 3, vital sign parameter signals
Communication module 5 and intelligent terminal 6 are assembled into life physical sign monitoring device, and carry out breathing and heartbeat inspecting, obtain shown in Fig. 7
Map.
Embodiment 4
The optical fiber inductive component of the present embodiment, as shown in figure 4, the sensor fibre 1 includes being in the curved line of serpentine
Section, and be in the curved line section of the figure of eight, described is in the curved line section phase of the curved line Duan Yucheng figure of eight of serpentine
Mutually series connection and top-bottom cross.It is extracted and analysis module 4, indigo plant with laser light source 2, photoelectric conversion module 3, vital sign parameter signals
Tooth communication module 5 and intelligent terminal 6 are assembled into life physical sign monitoring device, and carry out breathing and heartbeat inspecting, obtain shown in Fig. 7
Map.
Embodiment 5
The optical fiber inductive component of the present embodiment, as shown in figure 5, the sensor fibre 1 includes being in the curved line of serpentine
Section, and twist curved line section and be in the curved line section of the figure of eight, it is described in the curved line section of serpentine point
Simultaneously top-bottom cross is not serially connected with twist curved line section and in the curved line section of the figure of eight.By itself and laser
Light source 2, photoelectric conversion module 3, vital sign parameter signals are extracted to be assembled with analysis module 4, bluetooth communication module 5 and intelligent terminal 6
At life physical sign monitoring device, and breathing and heartbeat inspecting are carried out, obtains map shown in Fig. 7.
As shown in Figure 7, respiratory signal dynamics amplitude is larger in embodiment 1, and heartbeat signal mixes with noise, it is not easy to area
Point；In embodiment 2, breath signal is opposite to be weakened, and heartbeat signal can highlight, but noise amplitude is still larger；In embodiment 3
Breath signal is stronger, and heartbeat signal noise is relatively good；Breath signal is relatively weak in embodiment 4, and heartbeat signal can be distinguished very well；
In embodiment 5, breath signal is relatively weak, and the heartbeat signal period is more apparent, detail increases.In summary, using embodiment 3~
Optical fiber inductive component described in 5, can reduce breathing and tremble influences heartbeat signal, mentions significantly to breathing and heartbeat inspecting sensitivity
It is high.
The foregoing is merely better embodiments of the invention, are not intended to limit the invention, all of the invention
Within spirit and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of optical fiber inductive component comprising at least one sensor fibre (1), it is characterised in that: sensor fibre (1) packet
It includes in the curved line section of serpentine, and twist curved line section or be in the curved line section of the figure of eight, it is described to be in
The curved line section of serpentine is serially connected simultaneously up and down with twist curved line section or in the curved line section of the figure of eight
Intersect.
2. optical fiber inductive component as described in claim 1, it is characterised in that: the sensor fibre (1) includes being bent in serpentine
Line section, and twist curved line section is described in the curved line section of serpentine and twist curved line
Section is serially connected and top-bottom cross.
3. optical fiber inductive component as described in claim 1, it is characterised in that: the sensor fibre (1) includes being bent in serpentine
Line section, and be in the curved line section of the figure of eight, it is described be in the curved curved row of the line Duan Yucheng figure of eight of serpentine
Line segment is serially connected and top-bottom cross.
4. optical fiber inductive component as described in claim 1, it is characterised in that: the sensor fibre (1) includes being bent in serpentine
Line section, and twist curved line section and be in the curved line section of the figure of eight, it is described be in the curved row of serpentine
Line segment is serially connected respectively with twist curved line section and in the curved line section of the figure of eight and top-bottom cross.
5. optical fiber inductive component as described in claim 1, it is characterised in that: described curved in the curved line section minimum of serpentine
Bilge radius 2cm, the twist curved curved line section minimum bending radius 2.5cm of the line Duan Yucheng figure of eight.
6. optical fiber inductive component as described in claim 1, it is characterised in that: sensor fibre (1) core diameter is less than or equal to 5
μm。
7. a kind of life physical sign monitoring device comprising laser light source (2), photoelectric conversion module (3) and vital sign parameter signals mention
It takes and analysis module (4), it is characterised in that: it further include optical fiber inductive component described in claim 1,
Laser light source (2), transmitting laser to sensor fibre (1)；
Sensor fibre (1) is separately connected laser light source (2) and photoelectric conversion module (3), is bent after bearing ambient pressure, passes
The optical signal transmitted in photosensitive fibre (1) is lost at crooked position and is modulated；
Photoelectric conversion module (3), connection vital sign parameter signals extract and analysis module (4), convert optical signals to electric signal；
Vital sign parameter signals extract and analysis module (4), and vital sign information is extracted from electric signal.
8. life physical sign monitoring device as claimed in claim 6, it is characterised in that: further include bluetooth communication module (5) and intelligence
Energy terminal (6), the bluetooth communication module (5) are separately connected vital sign parameter signals and extract and analysis module (4) and intelligent terminal
(6), intelligent terminal (6) extracts the vital sign information obtained with analysis module (4) to vital sign parameter signals and shows, and
Vital sign information sends information warning when being more than preset value.
9. life physical sign monitoring device as claimed in claim 6, it is characterised in that: the sensor fibre (1) is built in but not
It is limited in cushion, mattress, insole and pillow.
10. life physical sign monitoring device as claimed in claim 6, it is characterised in that: the sensor fibre (1) bears extraneous pressure
The mode of power includes but is not limited to non-wearable and non-intrusion type.
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| CN110974198A (en) * | 2020-01-03 | 2020-04-10 | 武汉理工大学 | Wearable vital sign monitoring device and method |
| CN110974198B (en) * | 2020-01-03 | 2021-01-08 | 武汉理工大学 | Wearable vital sign monitoring device and method |
| CN111248891A (en) * | 2020-02-27 | 2020-06-09 | 南昌航空大学 | Pulse measurement system based on bent optical fiber sensing head |
| CN114674349A (en) * | 2022-03-14 | 2022-06-28 | 麒盛科技股份有限公司 | Monitoring device based on optical fiber microbend |
| CN114674349B (en) * | 2022-03-14 | 2024-06-04 | 麒盛科技股份有限公司 | Monitoring device based on optical fiber microbending |
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Address after: 430070 No. 501-2-4, 1 / F, building 5, phase VI, optics valley software park, west of phase I and south of Nanhu South Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: Wuhan Kai Ruipu Medical Technology Co.,Ltd. Address before: 430070 No. 501-2-4, 1 / F, building 5, phase VI, optics valley software park, west of phase I and south of Nanhu South Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee before: WUHAN KAIRUIPU INFORMATION TECHNOLOGY Co.,Ltd. |