CN109452931A - A kind of piezoelectric type skin detectors - Google Patents
A kind of piezoelectric type skin detectors Download PDFInfo
- Publication number
- CN109452931A CN109452931A CN201811525493.5A CN201811525493A CN109452931A CN 109452931 A CN109452931 A CN 109452931A CN 201811525493 A CN201811525493 A CN 201811525493A CN 109452931 A CN109452931 A CN 109452931A
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- sensory package
- contact
- skin
- piezoelectric
- pearl
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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
- A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
- A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
Abstract
The invention discloses a kind of piezoelectric type skin detectors, are related to biosensor and Piezoelectric sensing technique field, can be realized the noninvasive somatometry of miniaturization measuring device.The present invention includes: probe, conducting subassembly, sensory package, signal acquisition module.Probe end thereof contacts surface to be measured, end thereof contacts conducting subassembly, conducting subassembly connect sensory package, sensory package connection signal acquisition module with critical contact state.Pop one's head in into contact with body surface situation sensory package is transferred to by conducting subassembly, sensory package generates output signal, the output signal of signal acquisition module acquisition sensory package by the input signal of contact.The present invention utilizes direct piezoelectric effect, Non-invasive detection skin condition information, physics and chemistry information certain in skin are converted into charge or information of voltage, provide auxiliary reference for the physiological status characterization of skin, and have many advantages, such as that structure is simple, response is fast, detection information is abundant, comfort level is high, noninvasive.
Description
Technical field
The present invention relates to biosensor and Piezoelectric sensing technique field more particularly to a kind of piezoelectric type skin detectors.
Background technique
Skin surface is the mirror of Human Physiology health status, is fed back by the detection to skin histology performance parameter
Analysis, can be for qualitative, quantitatively evaluation skin current state provides reference.As the maximum histoorgan of human body, skin is
The medium that human body is exchanged with external environment has complicated physiological function, and by many factors such as body fluid, metabolism, physical and chemical ring
The influence in border etc., the physiological function of skin, which is realized, depends on its biomechanics characteristic, such as viscoplasticity, tension, compressive resistance.Detection
The characteristics such as biomethanics, pattern, size, the position of skin simultaneously analyze its viscoplasticity, size, material, soft or hard degree, pathology, disease
There are extremely important reference value and directive function in the fields such as health care, Expression analysis, shaping, clinic by the information such as change,
This is also exactly skin biomethanics gradually increasingly by reason concerned by people.The quantitative power of skin soft tissue is accurately described
Characteristic is learned, preferably the physiological function of skin can be characterized from the angle of mechanics, it is whole for clinic skin transplanting, surgery
Shape, soft tissue injury, treatment of wounds, lesion monitoring, pathological analysis, health care and development of new skin substitute material provide
With reference to the numerous areas such as treatment and protection, biomethanics, medical treatment & health, animation, psychology, criminal investigation to human skin disease
It is of great significance.
Skin mechanics performance measurement is often divided into vitro measurement and somatometry two ways.The advantages of in vitro measurement is can be with
Isolated skin is fabricated to any required shape to test, additionally it is possible to by skin layered shaping, study skin layers respectively
Mechanical property, furthermore isolated skin can also study ultimate load, micromechanism of damage of skin etc., but since skin texture is different
It is often complicated, also with a large amount of nerve fiber except the structures such as collagenous fibres, subcutaneous fat, pore in addition to, when there is environmental stimuli to go out
Now, nerve fiber can make a response to stimulation, and then influence the mechanical property of skin, therefore in vitro measurement can not characterize
Influence of the nerve fiber to mechanical property out, and this method belongs to invasive detection, detection range and effect are limited.
Stamped method is as the widely used detection method of noninvasive somatometry, and accuracy and reliability is in clinical medicine
In obtained generally approving, pertinent instruments are also employed in clinical detection, but since use cost is high and needs the training of profession,
Be not suitable for household and miniaturization, limit its popularity rate used.
To sum up, lack a kind of skin detection device minimized and can be realized noninvasive somatometry in the prior art.
Summary of the invention
The present invention provides a kind of piezoelectric type skin detectors, can pass through the direct piezoelectric effect of piezoelectric membrane, Non-invasive detection
The status informations such as skin performance parameter, pattern, size, position, in skin it is certain physics and chemistry information be converted into corresponding charge or
Information of voltage provides auxiliary reference for the physiological status characterization of skin.It is simple with structure, be easy to minimize, response is fast, no
Vulnerable to external interference, detection information is abundant, man-machine/body-coupled is good, comfort level is high, noninvasive the advantages that.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of piezoelectric type skin detectors, comprising: probe, conducting subassembly, sensory package, signal acquisition module.
Probe end thereof contacts surface to be measured, end thereof contacts conducting subassembly, conducting subassembly are connected with critical contact state and are sensed
Component, sensory package connection signal acquisition module.Pop one's head in into contact with body surface situation sensing group is transferred to by conducting subassembly
Part, sensory package generate output signal by the input signal of contact, and signal acquisition module acquires the output signal of sensory package.
Further, probe includes visiting pearl retainer and visiting pearl, visits and mounting-positioning holes are arranged according to array on pearl retainer,
Pearl is visited to be mounted in the mounting-positioning holes.
Further, conducting subassembly includes rigid retainer and T-type contact head, and rigid retainer discretization is equipped with through-hole, T
Type contact is connected by through-hole with rigid retainer, T-type contact end thereof contacts ball, other end sensing contact component.
Further, the setting position of the through-hole and the mounting-positioning holes is corresponding.
Further, sensory package includes pedestal, vertical screen, support frame, substrate, piezoelectric membrane, is fixed on pedestal
Vertical screen is connected, support frame is set between the grid of vertical screen, substrate is strutted by support frame, and substrate center is pasted
Piezoelectric membrane, piezoelectric membrane and T-type contact critical contact.
Further, reset spring is installed in the gap of vertical screen and rigid retainer, and reset spring is in nature drawing
It stretches state, the compression of reset spring and stretches for adjusting spy pearl, conducting subassembly, the contact condition between sensory package, and
Visit the reset return of pearl.
Further, it visits pearl retainer and visits pearl and be made using titanium or platinum；Or using metal or plastics or conjunction
Titanium is coated on surface at material or platinum is made, and titanium and platinum have good skin affinity.
Further, T-type contact is made using Silica hydrogel elastomer, and is protruded and be embedded with hard substrate inside contact.
Further, rigid retainer, vertical screen, support frame are made using rigid material.
Further, the material of piezoelectric membrane is PVDF, zinc oxide, PZT, organic metal trihalid perovskite.
In use, probe vertical as skin area to be detected and is loaded certain pressure, contact each spy pearl
To skin area to be detected, the T-type lower surface of pearl press T-type contact is visited, making the T-type lower surface of T-type contact, deformation occurs.T-type
Contact protrude above contact upper surface displacement that self-deformation generates and the pressure being subject to are passed to stick at substrate piezoelectricity it is thin
On film.Piezoelectric membrane has direct piezoelectric effect, deforms under pressure, the quantity of electric charge or voltage direct ratio that surface generates
In suffered pressure.Piezoelectric membrane leads to potential change and the surface of upper and lower surface since the electrode of interior dielectric changes
Charge on two electrodes of contact is readjusted to balance the surface potential of piezoelectric membrane, therefore has electric charge stream in circuit
It is dynamic.Mechanical quantity and electric signal can be mutually converted using the direct piezoelectric effect of piezoelectric membrane, signal acquisition module will adopt
The electric signal of each piezoelectric membrane response collected carries out signal amplification and processing.It, can be anti-by the processing of signal acquisition module
Mirror the substantially distribution situation of the pattern of skin area to be detected, profile equal distribution situation and skin basic mechanical performance.
To sum up, the present invention can quickly characterize the physiological status of skin, biomethanics during skin nursing for user
Performance provides auxiliary reference for skin nursing；In skin treating rehabilitation course, by detecting illing skin structure property, shape
State, pattern, size equal distribution situation provide assessment ginseng for patient and diagnosis, monitoring, treatment, alleviation or the adjusting of medical care etc.
It examines；During carrying out medical diagnosis on disease by skin in vitro, by the soft or hard degree in skin detection region, pattern equal distribution, it is
Diagnosis, prevention, the monitoring of medical staff and user provide rough judgement.
The beneficial effects of the present invention are:
The present invention utilizes the direct piezoelectric effect of piezoelectric membrane, the skins such as Non-invasive detection skin performance parameter, pattern, size, position
Physics and chemistry information certain in skin are converted into corresponding charge or information of voltage by status information, are that the physiological status of skin characterizes
Auxiliary reference is provided；It is fixed quickly to provide during nursing, operation, treatment, inspection, diagnosis etc. for individual, medical staff etc.
Property quantitative first sentences reference information；It is simple with structure, be easy to minimize, response is fast, not vulnerable to external interference, detection letter
The advantages that breath is abundant, man-machine/body-coupled is good, comfort level is high, noninvasive.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is general structure schematic diagram of the invention；
Fig. 2 is overall structure sectional view schematic diagram of the invention；
Fig. 3 is sensing detection structure partial schematic diagram of the invention；
Fig. 4 is sensing detection structure partial enlarged diagram of the invention；
Fig. 5 is a kind of rectangular configuration linear array scheme schematic diagram of the invention；
Fig. 6 is a kind of circular configuration linear array scheme schematic diagram of the invention.
1- shell, 2- probe, 21- visit pearl retainer, 22- visits pearl, 3- conducting subassembly, 31- rigidity retainer, 32- independence T
Type lifts one's head, 4- reset spring, 5- sensory package, 51- pedestal, the vertical screen of 52-, 53- support frame, 54- substrate, 55- piezoelectricity
Film, 6- signal acquisition module, 7- information feedback connect with control assembly, 8- information display screen component, the transmission of 9- data with conversion
Mouthful.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, With reference to embodiment to this
Invention is described in further detail.
The embodiment of the present invention provides a kind of piezoelectric type skin detectors, as shown in figures 1 and 2, comprising: including shell 1, probe
2, conducting subassembly 3, reset spring 4, sensory package 5, signal acquisition module 6, information feedback and control assembly 7, information display screen
Component 8, data transmission and translation interface 9.
1 bottom of shell installation probe 2, probe 2 is including visiting pearl retainer 21 and visiting pearl 22.The array on visiting pearl retainer 21
Have and visit pearl mounting-positioning holes, visits pearl 22 for installing positioning, probe 2 is affixed by visiting pearl retainer 21 and the shell 1.
Conducting subassembly 3 includes rigid retainer 31 and T-type contact 32, is equipped with array T-type in rigid 31 discretization of retainer
32 mounting hole of contact, T-type contact 32 are installed in 32 mounting hole of array T-type contact of rigid 31 discretization of retainer, and rigidity
The upper surface array of retainer 31 has the hangers connecting with 4 one end of reset spring, and the other end is connected to the top of conducting subassembly 3,
And it is in natural drawing state.
As shown in Figure 3, Figure 4, sensory package 5 is thin including pedestal 51, vertical screen 52, support frame 53, substrate 54, piezoelectricity
Film 55.Vertical screen 52 is equipped with the array grid hole with 31 identical patterns of spy pearl retainer 21 and rigid retainer.Vertical screen
52 upper surface and pedestal 51 are affixed, and the hangers for installing reset spring 4 is arranged in the lower end surface of vertical screen 52.
Support frame 53 is independently fixedly mounted in the patterned array grid hole of vertical screen 52, and substrate 54 bonds
Or it is fixed on the lower end supporting surface of support frame 53.Piezoelectric membrane 55 is bonded in the center position of the lower end surface of substrate 54,
The ball contact surface of piezoelectric membrane 55 and T-type contact 32 is in critical contact state.
Probe 2 is located at the lower part of shell 1, affixed by visiting pearl retainer 21 and shell 1.Conducting subassembly 3, reset spring 4,
Sensory package 5, signal acquisition module 6, information feedback are installed on the inside of shell 1 with control assembly 7.Wherein, 3 He of conducting subassembly
Sensory package 5 connects by the way that 4 phase of reset spring is outstanding, and the compression and stretching of reset spring 4 are for adjusting spy pearl 22, the conduction of probe 2
The return return of opposite contact condition and spy pearl 22 between component 3 and sensory package 5.
Sensory package 5 is fixedly installed in the middle and lower part inside shell 1 by pedestal 51；Signal acquisition module 6, information feedback
It is fixedly installed in the inside of shell 1 respectively with control assembly 7, information display screen component 8, data transmission are placed in translation interface 9
At 1 lateral surface suitable position of shell, and sensory package 5, signal acquisition module 6, information feedback are shown with control assembly 7, information
Screen assembly 8, data transmission are equipped with interface with translation interface 9 between each other, acquisition, biography for signal each other and information
Defeated, processing and control etc..
Shell 1 selects the plastics or metal or synthetic material of lightweight and moderate strength to be made, and often take in outer surface,
Hold, pinch or hold the soft comfortables materials such as position nesting medical silica-gel.
The spy pearl retainer 21 of probe 2 and spy pearl 22 are made using skin compatible materials such as titanium or platinums, or using gold
Belong to or the hard materials such as plastics or synthetic material are made and are made in the surface coating skin compatible materials such as titanium or platinum.
T-type contact 32 is made using Silica hydrogel elastomer, and is protruded inside contact embedded with hard substrate to help convex
Contact plastotype out.
Rigid retainer 31, vertical screen 52, support frame 53 are using light-weight metal or the rigidity such as plastics or synthetic material
Material is made.
Reset spring 4 is made using spring steel material；The substrate 54 is fabricated to flexible base using Silica hydrogel etc.
Bottom.
As shown in Fig. 4, Fig. 5, Fig. 6, the overall dimensions shape of pearl retainer 21, rigid retainer 31, vertical screen 52 is visited
Keep corresponding and consistent with the array pattern in hole and mode, external form shape can be the fundamental forms such as rectangular, rectangle, circle, ellipse
Shape, as Fig. 5 and Fig. 6 illustrates.Array pattern can be linear array, radial arrays, orbit array etc..Visit pearl 22, T-type contact 32,
Pedestal 51, vertical screen 52, support frame 53, substrate 54, the array manner of piezoelectric membrane 55, number, relative position keep one
It causes.Reset spring 4 is distributed between conducting subassembly 3 and sensory package 5, and is in natural drawing state.
Visit pearl 22 and the T-type lower surface of T-type contact 32, the protrusion contact of T-type contact 32 upper surface with to be stained with piezoelectricity thin
The substrate 54 of film 55 is in critical contact state.
Piezoelectric membrane 55 can be the piezoelectric membranes such as PVDF, zinc oxide, PZT or organic metal trihalid perovskite.
In use, according to the detection of the selections such as the age of user, gender, detection position corresponding range and shape specification
Device opens the switch of information display screen component 8.According to whether will test information be transmitted to the processing equipments such as external computer or
External equipment storage, control, feedback, processing detection information whether are needed, data transmission is connected with translation interface 9 and external equipment
It connects.
Probe 2 vertically as skin area to be detected and is loaded into certain pressure, make each spy pearl 22 touch to
Skin area is detected, the T-type lower surface that pearl 22 presses T-type contact 32 is visited, making the T-type lower surface of T-type contact 32, deformation occurs.
Displacement that self-deformation generates and the pressure being subject to are passed to and are sticked at by the contact upper surface that protrudes above of T-type contact 32
On the piezoelectric membrane 55 of substrate 54.Piezoelectric membrane 55 has direct piezoelectric effect, deforms under pressure, and surface generates
The quantity of electric charge or voltage be proportional to suffered pressure.
Piezoelectric membrane 55 leads to the potential change and surface contact of upper and lower surface since the electrode of interior dielectric changes
Two electrodes on charge readjust to balance the surface potential of piezoelectric membrane 55, therefore have in circuit charge flowing.
Mechanical quantity and electric signal can be mutually converted using the direct piezoelectric effect of piezoelectric membrane 55, signal acquisition mould
The electric signal that block 6 responds collected each piezoelectric membrane 55 carries out signal amplification and processing.
By the processing of signal acquisition module 6, it can reflect pattern, the profile equal distribution situation of skin area to be detected,
And the substantially distribution situation of skin basic mechanical performance.Treated that signal data passes respectively by all for signal acquisition module 6
Information feedback and control assembly 7, information display screen component 8 are given, and external place is transmitted to translation interface 9 by data transmission
Manage analytical equipment.By external equipment to the further detailed analysis of detection signal and processing, the power of skin to be detected is obtained
Learn performance parameter (such as viscoplasticity), health status, pattern, size, location information.Information display screen component 8 can show inspection
The specific data of measurement information, curve, figure etc., user can according to need switching display window.
The present invention can quickly characterize the physiological status of skin, biomechanical property during skin nursing for user,
Auxiliary reference is provided for skin nursing；In skin treating rehabilitation course, by detecting illing skin structure property, state, shape
Looks, size equal distribution situation provide assessment reference for patient and diagnosis, monitoring, treatment, alleviation or the adjusting of medical care etc.；?
It is medical care people by the soft or hard degree in skin detection region, pattern equal distribution during the external progress medical diagnosis on disease by skin
Diagnosis, prevention, the monitoring of member and user provide rough judgement.The present invention utilizes the direct piezoelectric effect of piezoelectric membrane, noninvasive inspection
The skin conditions information such as skin performance parameter, pattern, size, position are surveyed, physics and chemistry information certain in skin are converted into accordingly
Charge or information of voltage provide auxiliary reference for the physiological status characterization of skin.It can be individual, medical staff etc. in nursing, hand
It quickly provides during art, treatment, inspection, diagnosis etc. and qualitative, quantitative first sentences reference information；It is simple with structure, is easy to
Miniaturization, response be fast, not vulnerable to external interference, detection information is abundant, man-machine/body-coupled is good, comfort level is high, noninvasive etc. excellent
Point.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
1. a kind of piezoelectric type skin detectors characterized by comprising probe (2), conducting subassembly (3), sensory package (5), letter
Number acquisition module (6)；
Probe (2) end thereof contacts surface to be measured, end thereof contacts conducting subassembly (3), conducting subassembly (3) are connected with critical contact state
Sensory package (5), sensory package (5) connection signal acquisition module (6)；
Probe (2) into contact with body surface situation be transferred to sensory package (5) by conducting subassembly (3), sensory package (5) passes through
The input signal of contact generates output signal, and signal acquisition module (6) acquires the output signal of sensory package (5).
2. a kind of piezoelectric type skin detectors according to claim 1, which is characterized in that probe (2) includes visiting pearl to keep
Frame (21) and spy pearl (22) are visited and mounting-positioning holes are arranged according to array on pearl retainer (21), visit pearl (22) and are mounted on the peace
Fill positioning hole.
3. a kind of piezoelectric type skin detectors according to claim 2, which is characterized in that conducting subassembly (3) includes rigidity
Retainer (31) and T-type contact head (32), rigid retainer (31) discretization are equipped with through-hole, T-type contact (32) by through-hole and
Rigid retainer (31) connection, T-type contact (32) end thereof contacts ball (22), other end sensing contact component (5).
4. a kind of piezoelectric type skin detectors according to claim 3, which is characterized in that the through-hole and the installation are fixed
The setting position in position hole is corresponding.
5. a kind of piezoelectric type skin detectors according to claim 3 or 4, which is characterized in that sensory package (5) includes bottom
Seat (51), vertical screen (52), support frame (53), substrate (54), piezoelectric membrane (55), are fixedly connected on pedestal (51) vertical
Support frame (53) are arranged between the grid of vertical screen (52) in screen (52), and substrate (54) is strutted by support frame (53),
Piezoelectric membrane (55) are pasted in substrate (43) center, piezoelectric membrane (55) and T-type contact (32) critical contact.
6. a kind of piezoelectric type skin detectors according to claim 5, which is characterized in that vertical screen (52) and rigidity are protected
Hold gap installation reset spring (4) of frame (31).
7. a kind of piezoelectric type skin detectors according to claim 2, which is characterized in that visit pearl retainer (21) and visit pearl
(22) it is made using titanium or platinum；Or titanium or platinum production are coated on surface using metal or plastics or synthetic material
It forms.
8. a kind of piezoelectric type skin detectors according to claim 3, which is characterized in that T-type contact (32) is solidifying using silicon
Glue elastomer is made, and protrudes and be embedded with hard substrate inside contact.
9. a kind of piezoelectric type skin detectors according to claim 5, which is characterized in that rigid retainer (31), vertical
Screen (52), support frame (53) are made using rigid material.
10. a kind of piezoelectric type skin detectors according to claim 5, which is characterized in that the material of piezoelectric membrane (55)
For PVDF, zinc oxide, PZT, organic metal trihalid perovskite.
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| CN201811525493.5A CN109452931A (en) | 2018-12-13 | 2018-12-13 | A kind of piezoelectric type skin detectors |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811525493.5A CN109452931A (en) | 2018-12-13 | 2018-12-13 | A kind of piezoelectric type skin detectors |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110205010A (en) * | 2019-06-12 | 2019-09-06 | 严勇 | A kind of preparation method of hydridization piezo-electric damping coating |
| CN110885219A (en) * | 2019-12-27 | 2020-03-17 | 河南理工大学 | Tough cement-based piezoelectric composite material, preparation method and application |
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