CN115054217A - Special touch sensing air bag assembly for wearable blood pressure measurement and preparation method thereof - Google Patents
Special touch sensing air bag assembly for wearable blood pressure measurement and preparation method thereof Download PDFInfo
- Publication number
- CN115054217A CN115054217A CN202210625919.4A CN202210625919A CN115054217A CN 115054217 A CN115054217 A CN 115054217A CN 202210625919 A CN202210625919 A CN 202210625919A CN 115054217 A CN115054217 A CN 115054217A
- Authority
- CN
- China
- Prior art keywords
- base material
- air bag
- wrist
- touch sensor
- blood pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 238000009530 blood pressure measurement Methods 0.000 title claims description 22
- 239000000463 material Substances 0.000 claims abstract description 100
- 210000000707 wrist Anatomy 0.000 claims abstract description 58
- 238000003825 pressing Methods 0.000 claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 239000000758 substrate Substances 0.000 claims description 65
- 238000000034 method Methods 0.000 claims description 10
- 238000007650 screen-printing Methods 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000004528 spin coating Methods 0.000 claims description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000000016 photochemical curing Methods 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000001723 curing Methods 0.000 claims description 3
- 238000005530 etching Methods 0.000 claims description 3
- 238000013003 hot bending Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 230000008447 perception Effects 0.000 claims description 3
- 238000001259 photo etching Methods 0.000 claims description 3
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims 2
- 230000036772 blood pressure Effects 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- 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
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
-
- 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
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/02141—Details of apparatus construction, e.g. pump units or housings therefor, cuff pressurising systems, arrangements of fluid conduits or circuits
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Physiology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Ophthalmology & Optometry (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The application discloses a touch sensing air bag assembly special for a wearable blood pressure watch and a preparation process of the touch sensing air bag assembly. The air bag is formed by fusing and pressing at least two layers of base materials with different elastic moduli, and an air chamber is formed between two adjacent layers of base materials; the touch sensor is a flexible pressure sensor, the touch sensor is arranged on a base material on one side relatively close to the wrist, and the elastic modulus of the base material relatively close to the wrist is smaller than that of the base material far away from the wrist, so that a modulus combination which is most beneficial to the improvement of the signal-to-noise ratio of the blood pressure signal is formed; the air bag also comprises accessories so as to facilitate the fastening of the air bag on the watchband; the bladder may also include a reinforcing panel. The air bag can be wound into an annular structure to be sleeved on the wrist part of a user, meanwhile, the intelligent sensing air bag and the special buckle type accessory and the like form an air bag assembly, and the air bag assembly can be detachably assembled with the sphygmomanometer body. The touch sensing air bag assembly has the advantages of high signal-to-noise ratio and convenient disassembly.
Description
Technical Field
The application relates to the technical field of wearable blood pressure measurement, in particular to a touch sensing air bag assembly special for wearable blood pressure measurement and a preparation method thereof.
Background
Watch-type sphygmomanometer is that intelligence is dressed a novel equipment in the health detection field, has convenient, quick use and experiences, is in the favor of vast consumers. However, when the contradiction between the medical precision, miniaturization and comfort of the watch-type sphygmomanometer is solved, the measurement error is often caused by the interference of various factors, and the FD/CFD standard is difficult to meet. One of the problems is that the wrist thickness, the appearance and even the fat layer thickness of different hands are not consistent, but the tightness adjustment of the watchband is discontinuous, and meanwhile, the wearing tightness habits of different people are also not consistent, so that watch-type sphygmomanometers in the same type have different air bag-wrist gaps aiming at different people, and the abnormal baseline drift of a blood pressure curve is caused, so that different measurement errors of the blood pressure measurement are caused to different people.
For solving this problem, ohm dragon adopts many gasbags to realize that blood pressure measurement's initial elasticity is unanimous, its Hert Guide has adopted three gasbag schemes, gasbag one that the watchcase is close to the wrist, gasbag two on the watchband, these two gasbags expand after aerifing through the piezoelectricity air pump, when they touch the wrist, the gasbag internal pressure rises fast, detect the pressure rising curve of gasbag one and gasbag two through baroceptor, adopt same initial pressure value to everyone, guarantee to have equal contact pressure to everyone wrist. After the contact pressure is equal, the electromagnetic valve closes the air paths of the first air bag and the second air bag, and the third blood pressure detection air bag starts to be inflated, so that the blood pressure measurement is carried out based on the boosting method.
The solution of whichthc D is to achieve a high accuracy blood pressure measurement by a single balloon solution and PPG blood pressure compensation. The principle is that the designed watchband has certain electrical impedance, the tightness degree worn by different people has certain linear correlation with the electrical impedance, namely, the watchband has different impedances when the watch buckle is inserted into different watchband holes, the tightness degree of the watch is judged through the measured impedances, and then the high-precision measurement of the blood pressure is realized based on the blood pressure compensation quantity preset by the different tightness degrees and the PPG compensation quantity.
The two solutions mentioned above are currently the mainstream solutions, which we call multi-balloon structural solutions and single-balloon compensation solutions. The multi-airbag structural solution has high precision in a continuous range, and even though wrists of different people have different thicknesses and the wearing tightness is different, initial contact pressure measured by the airbag three can be guaranteed to be consistent when the airbag one and the airbag two are inflated, so that the initial contact pressure is better in a larger continuous range. But the disadvantages are obvious, the products have huge volume due to a plurality of air bags, the single measurement time is long due to the inflation of the plurality of air bags, and simultaneously, the power consumption is larger, and in order to reduce the coupling error between the flexible bodies of the plurality of air bags, a separation plate with high hardness needs to be separated between the auxiliary air bag II and the blood pressure measurement air bag III, so that the configuration comfort is low. Therefore, the scheme is difficult to popularize, is adopted by Ohlong and research and Intelligent science and technology (Hangzhou) limited company at present, and is not beneficial to wide-range popularization.
The single-air-bag compensation type solution has smaller volume, better comfort and smaller power consumption. However, the defect of the scheme is that the wearing tightness of different people is inconsistent due to the discontinuity of the watchband buckle hole, so that impedance discontinuity is caused, a large amount of data measurement and algorithm optimization are needed by using compensation pressure under the condition of discontinuous impedance, a large storage and calculation space occupied by an MCU is needed, meanwhile, the blood pressure measurement precision is further improved by adopting a PPG algorithm, and the scheme has high difficulty and low universality, and particularly aims at certain crowds with special wrist circumference and specific non-statistical crowds.
In order to solve the problems, the invention provides an air bag assembly scheme with touch perception based on a single air bag scheme.
Disclosure of Invention
This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. The summary of the present application is not intended to identify key features of the claimed subject matter.
Some embodiments of the present application propose a haptic airbag to solve the technical problems mentioned in the background section above.
As a first aspect of the present application, some embodiments of the present application provide a tactile sensing airbag assembly specially used for wearable blood pressure measurement, including an airbag, an air nozzle installed on the airbag, the airbag is formed by fusing and pressing at least two layers of base materials with different elastic moduli, and an air chamber is formed between two adjacent layers of base materials;
and the touch sensor is a flexible pressure sensor, the touch sensor is arranged on the substrate on one side relatively close to the wrist, and the elastic modulus of the substrate relatively close to the wrist is smaller than that of the substrate far away from the wrist.
Furthermore, the air bag is provided with at least two layers of air chambers which are communicated with each other to form a multi-layer spring type air chamber, and the adjacent air chambers are communicated with each other.
Further, the touch sensor comprises at least one of a resistance type film pressure sensor or a capacitance type film pressure sensor, and the touch sensor is arranged on the inner wall or the outer wall of the substrate close to one side of the wrist to realize touch sensing.
Furthermore, the touch sensing air bag assembly also comprises a spring thimble, and the spring thimble is contacted with a contact of the built-in touch sensor, so that the touch sensor can be communicated with an internal circuit of the sphygmomanometer body.
Furthermore, the air bag also comprises a reinforcing sheet, and the reinforcing sheet is mutually attached to the base material on one side far away from the wrist relatively, so that the overall elastic modulus of the base material on one side close to the wrist in the same air chamber is smaller than that of the base material on one side far away from the wrist.
Further, the tactile airbag module further comprises: and the accessory and the base material are mutually fused and pressed.
As a second aspect of the present application, some embodiments of the present application provide a method for preparing the aforementioned tactile sensation airbag assembly dedicated to wearable blood pressure measurement, comprising the steps of:
die cutting of the base material;
respectively fusing and pressing the accessory, the air tap and the touch sensor to different base materials;
fusing and pressing the base material subjected to fusing and pressing of the accessory, the air faucet and the touch sensor to form an air bag;
die cutting and trimming;
carrying out hot bending molding on the air bag to ensure that the air bag keeps a specific bending radian;
and assembling the assembly, wherein the assembly comprises a spring thimble.
Further, the base material near the wrist side is a base material with a relatively low elastic modulus, and if the elastic modulus of the base material is insufficient, the base material with the side air chamber is reinforced, and the reinforcing sheet is compounded with the base material in a hot melting mode.
Furthermore, the touch sensor can be attached to the inner surface or the outer surface of the substrate near the wrist side in a bonding or welding manner, and if the touch sensor is attached to the outer surface, a layer of ultrathin substrate needs to be added for outer layer coating treatment.
Further, the preparation method of the touch sensor comprises the following steps:
spin coating a graphene-polyurethane elastomer onto a substrate;
photoetching, curing and etching the spin-coating liquid to form a pressure-sensitive sensing array on the substrate and form a sensitive layer;
high-precision silk-screen printing silver paste on another substrate in a comb-shaped structure to form an electrode layer;
screen printing and photocuring step layers on two sides or the periphery of the pressure-sensitive sensing array to form a hollow structure by the sensitive layer and the electrode layer; and packaging the sensitive layer and the electrode layer based on adhesion to form the touch sensor with an initial response point.
The beneficial effect of this application lies in: the design idea of the scheme is that the wrist side air chamber of the air bag is designed to have a touch sensing function based on specific materials and a process route, and the air pressure in the air bag corresponding to specific micro pressure (between skin and a touch sensor) based on touch sensing is used as an effective data statistical initial value, so that the drift correction of a pulse wave curve is realized, and the measurement error caused by different wearing tightness is avoided. This scheme has reduced watch formula sphygmomanometer's volume, consumption, has promoted simultaneously and has worn the comfort level, and has higher continuous measurement accuracy and crowd's universality.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it.
Further, throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic and that elements and elements are not necessarily drawn to scale.
In the drawings:
FIG. 1 is a general schematic diagram of a haptic sensing balloon dedicated to wearable blood pressure measurement according to one embodiment of the present application;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is an exploded view of a haptic sensing balloon (with the addition of a first slice and a second slice) according to one embodiment of the present application;
FIG. 4 is a perspective view of a haptic sensor in accordance with one embodiment of the present application;
FIG. 5 is a cross-sectional view of a tactile sensor according to one embodiment of the present application;
FIG. 6 is an exploded view of a haptic sensing balloon according to another embodiment of the present application;
FIG. 7 is a flow chart of the fabrication of a tactile sensor of the present application;
FIG. 8 is a flow chart of the fabrication of the haptic sensing balloon of the present application;
the reference numbers in the figures are:
1. an air bag; 11. a first substrate; 111. a first slice; 112. a first cut; 12. a second substrate; 121. second slicing; 122. a first cut; 13. an air chamber; 14. a reinforcing sheet; 15. buckling;
2. an air tap;
3. an accessory;
4. a spring thimble;
5. a tactile sensor; 51. an electrode substrate; 52. an electrode layer; 53. a sensitive layer; 54. a sensitive substrate; 55. a support layer;
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the disclosure are shown in the drawings, it is to be understood that the disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided for a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the disclosure are for illustration purposes only and are not intended to limit the scope of the disclosure.
It should be noted that, for the convenience of description, only the parts relevant to the present application are shown in the drawings. The embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict.
It is noted that references to "a", "an", and "the" modifications in this disclosure are intended to be illustrative rather than limiting, and that those skilled in the art will recognize that "one or more" may be used unless the context clearly dictates otherwise.
The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 to 2, a tactile sensing airbag assembly dedicated for wearable blood pressure measurement comprises an airbag 1, an air faucet 2, an accessory 3, an air faucet 2, a spring thimble 4 and a tactile sensor 5;
the air bag 1 is formed by fusing and pressing at least two layers of base materials with different elastic moduli, and the edge parts of the two layers of base materials are mutually attached, so that an air chamber 13 can be formed between the two layers of base materials; and the base material has a certain radian, so that the air bag 1 formed by the base layer is arranged in a bent mode.
In order to distinguish the two substrates, the substrate forming the inner wall of the lower end of the air chamber 13 is defined as a first substrate 11, and the substrate forming the inner wall of the upper end of the air chamber 13 is defined as a second substrate 12; as such, when the assembly of the haptic airbag 1 dedicated for wearable blood pressure measurement provided by the present application is assembled to a cuff of an electronic sphygmomanometer, the first base material 11 is a base material close to the wrist side, and the second base material 12 is a base material far from the wrist side. Meanwhile, a buckle 15 is adhered on the second base material 12, and the second base material and the cuff can be connected with each other by the buckle 15
For this reason, the tactile sensor 5 is disposed on the first base material 11 (side close to the wrist), and the elastic modulus of the first base material 11 is different from that of the second base material 12, and in this embodiment, the elastic modulus of the first base material 11 is set to be smaller than that of the second base material 12, and it is essentially required that the base material close to the wrist side is smaller than that of the base material away from the wrist side; wherein, the touch sensor 5 is a flexible sensor; in this way, the tactile sensor 5 can form a sensor with the airbag 2 that determines whether the airbag is fully worn with the wrist of the user of the person.
When the scheme is adopted to measure the blood pressure, the air bag 1 is assembled on a cuff of an electronic sphygmomanometer, the cuff is wound on the wrist of a user, the second base material 12 is attached to the cuff of the electronic sphygmomanometer, the first base material 11 is attached to the wrist of the user, air is injected into the air chamber 13, and after the air bag 1 starts to expand, the first base material 11 is provided with the touch sensor 5, so that the first base material 11 can deform and is attached to the wrist of the user to be in a seamless state;
meanwhile, the base material provided with the tactile sensor 5 is attached to the wrist of the user, so that the tactile sensor 5 deforms, and the tactile sensor 5 can form a corresponding signal according to the generated deformation; according to the design scheme, whether the air bag is attached to the wrist of a user or not can be directly measured, and compared with the method that whether the air bag is attached to the wrist or not is judged according to the change condition of air pressure of the air bag, the flexible touch sensor 5 can form a sensing area on the surface of the air bag, and when the sensing area is in contact with the wrist to generate deformation, whether the air bag is attached to the wrist of the user or not can be judged.
The first base material 11 and the second base material 12 are configured to have two elastic moduli, so that when the tactile sensor 5 deforms, the first base material 11 on which the tactile sensor 5 is located deforms to a greater extent, and the second base material 12 deforms to a lesser extent, and for this reason, the tactile sensor 5 can form a signal-to-noise ratio that is most favorable for reflecting the blood pressure signal.
Then, by counting the initial values obtained, it is possible to determine whether or not the airbag 1 is in a state of being attached to the wrist of the wearer by the signal change detected by the tactile sensor 5. Furthermore, after the value of the joint state of the air bag 1 and the wrist of the wearer is judged, the drift correction of the pulse wave curve is realized, and the measurement error caused by different wearing tightness is avoided.
That is, according to the technical scheme provided by the application, the air chamber 13 is formed by the base materials with the elastic modulus difference, and then the initial state that the air bag 1 is expanded to be mutually attached to the wrist of a wearer in a seamless mode can be judged in a data statistics mode, so that the measurement error generated by the gap between the air bag 1 and the wrist in the traditional blood pressure detection method is reduced.
In a more specific embodiment, the peripheries of the first base material 11 and the second base material 12 are melted by high frequency to form a gas chamber 13, the first base material 11 is melted and pressed onto the attachment 3, a hole is arranged on the second base material 12, the gas nozzle 2 passes through the hole, the gas nozzle 2 is connected with the air bag 1 formed by the first base material 11 and the second base material 12, and the inlet of the gas nozzle 2 forms a communication hole of the gas chamber 13; further, the air chamber 13 can be filled with air through the air faucet 2.
Furthermore, the present application utilizes the difference between the elastic modulus of the first base material 11 and the second base material 12 to enable the touch sensor 5 to obtain a better signal-to-noise ratio during operation, so in order to ensure a more excellent elastic modulus difference between the first base material 11 and the second base material 12, the second base material 12 is attached with the reinforcing sheet 14, thereby ensuring that the elastic modulus of the base material far away from the wrist of the wearer is greater than the elastic modulus of the base material near the wrist of the wearer.
The second base material 12 and the first base material 11 can have enough elastic modulus difference by arranging the reinforcing sheet 14, compared with a scheme that the air bag is attached to the cuff and the constraint force is transmitted to the air bag by the cuff; because there is an initial gap between the bladder and the cuff, the ability of the cuff to impart restraint to the bladder to different degrees of inflation is different. Therefore, the difference in the elastic modulus set by the application can effectively avoid the situation that the air bag expands towards the direction far away from the wrist of a user, so that the pressure generated after the air bag expands is not completely applied to the wrist of the user to generate measurement errors.
In a more specific embodiment, in order to allow the first substrate 11 and the second substrate 12 to form the gas chamber 13 having an initial volume and to form the gas chamber 13 having a multi-layer spring structure, the following structure is also provided.
In a more specific embodiment: a first cut sheet 111 is adhered to the first base material 11, and a first cut 112 is arranged on the first cut sheet 111; after the first cut piece 111 and the first substrate 11 are attached to each other in this way, a structure having an upper groove can be formed, and the upper groove can form an independent air chamber 13;
a second cut sheet 121 is attached to the second base material 12, a second cut 122 is formed in the second cut sheet 121, and after the second base material 12 and the second cut sheet 121 are fused with each other, a structure with a lower groove can be formed, so that the lower groove can form an independent air chamber 13;
after the first substrate 11 attached with the first section 111 and the second substrate 12 attached with the second section 121 are attached, the lower groove and the upper groove can be communicated with each other after the first substrate 11 and the second substrate 12 are attached, and the upper groove is smaller than the lower groove, so that the lower groove and the upper groove can form the multi-layer spring type air chamber 13 after being attached.
In a practical arrangement, the number of first and second cut sheets 111 and 121 is not limiting in any way, since only the first substrate 11 is directly attached to the wearer's wrist; in this arrangement, the substrate to which the tactile sensor is attached may be defined as a first substrate 11 (closer to the wearer's wrist) and the remaining substrate, the cut sheet, may be defined as a second substrate 12 (further from the wearer's wrist).
In a more specific aspect, it is desirable to form the air cell 13 formed by the airbag 1 as a multi-layer spring type air cell 13, so as to facilitate a sufficient difference in elastic modulus between the bottom end inner wall (inner wall containing the tactile sensor) of the air cell 13 and the top end inner wall of the air cell 13;
the tactile sensor 5 is a resistive film pressure sensor or a capacitive film pressure sensor.
In a more specific aspect, the tactile sensor 5 is provided on the inner wall of the first substrate 11 (inside of the air chamber 13); of course, in the remaining embodiments, referring to fig. 6, the tactile airbag 1 may be disposed on the outer wall of the first substrate 11 (outside the air cell 13).
In use, the generated detection signal of the tactile sensor 5 needs to be transmitted, for which the pogo pin 4 and the contact of the tactile sensor 5 are in contact with each other.
Structure of tactile sensor 5:
the tactile sensor 5 includes an electrode substrate 51, an electrode layer 52, a sensitive layer 53, and a sensitive substrate 54; wherein the electrode layer 52 covers the electrode substrate 51, the sensitive layer 53 covers the electrode layer 52, and the sensitive substrate 54 covers the sensitive layer 53; a support layer 55 is further arranged at the edges of the sensitive layer 53 and the electrode layer 52, and the upper end and the lower end of the support layer 55 are respectively fixedly connected with the electrode substrate 51 and the sensitive substrate 54, so that the electrode substrate 51, the sensitive substrate 54 and the support layer 55 can wrap the motor layer and the electrode substrate 51;
referring to the drawings:
the electrode substrate 51 is attached to the upper end surface of the first base material 11, and the tactile sensor 5 is disposed inside the air chamber 13;
referring to the drawings:
the pressure sensitive substrate is attached to the lower end face of the first base material 11, and the tactile sensor 5 is disposed outside the air chamber 13.
Regardless of the way the pressure sensitive layer and the electrode layer 52 are arranged, the area of the pressure sensitive layer is smaller than the area of the electrode layer 52, the area of the pressure sensitive layer forms the main area of the tactile sensor 5 for sensing pressure changes, and after the electrode layer 52 has extended to the area of the attachment 3, a hole is provided in the pressure sensitive substrate or the electrode substrate 51 to form a contact of the tactile sensor 5.
That is: the tail end of the touch sensor 5 is exposed out of a contact (FPC copper/silver pad) after fusion pressing, so that the circuit interconnection between the sensor and the sphygmomanometer body is realized based on the miniature elastic conductive mechanism.
To better illustrate the airbag provided in the present application, the following description is made of a method of manufacturing the airbag:
the preparation method comprises the following steps:
s1, die cutting of the base material;
cutting a TPU or PVC raw material into a plurality of base materials with the thickness of 0.15 mm-0.3 mm by die; a plurality of substrates can be die cut as required, and through holes can be cut in the substrates as slices.
S2, respectively melting and pressing the accessory 3, the air tap 2 and the touch sensor 5 onto different base materials; specifically, accessory 3 is fused and pressed onto the first base material, tactile sensor 5 is fused and pressed onto the first base material, air faucet 2 is fused and pressed onto the second base material, and the end of air faucet 2 is opposite to the first base material.
S3, fusing and pressing the fused and pressed accessories 3, the air nozzles 2 and the touch sensor 5 to form an air bag; that is, the peripheries of the first substrate 11 and the second substrate 12 are fused and pressed by a high frequency wave to form an air bag having an initial air cell in which the air tap 2 and the air cell 13 are communicated, and the opening of the air tap 2 forms a communicating hole of the air cell 13;
when it is desired to form a gas cell with an initial cavity, the cut pieces may be fused into a bladder intermediate body, and then the first and second base materials 11 and 12 may be fused on either side of the bladder intermediate body.
S4, cutting die and trimming; and correcting the edge of the base material subjected to the melt pressing.
S5, carrying out hot bending molding on the air bag to ensure that the air bag 1 keeps a specific bending radian;
s6: assembling components, wherein the components comprise spring thimbles 4; the pogo pin 4 is fitted to the catch 15 so that the contact points of the pogo pin 4 and the tactile sensor 5 are in contact with each other. The above-mentioned processes do not necessarily have to be performed in the order listed, and may be exchanged as required.
Furthermore, the substrate near the wearer's wrist needs to be selected to have a low elastic modulus to ensure that the substrate near the wearer's wrist and the substrate far from the wearer's wrist have a sufficient elastic modulus difference; when the elastic modulus difference between the upper end inner wall and the lower end inner wall of the air chamber is formed in a reinforcing mode, the base material far away from the wrist of a wearer can be reinforced, the reinforcing piece and the base material are subjected to hot melting and are matched, and the reinforcing piece can be made of stainless steel.
In a more specific embodiment, the tactile sensor 5 and the proximal-to-wrist substrate may also be conformed by means of adhesion; if the tactile sensor 5 is disposed outside the air chamber, a coating process of bonding or welding an ultra-thin base material to the tactile sensor 5 is required.
Further, in the above-mentioned case,
the method for manufacturing the tactile sensor 5 includes:
spin-coating the graphene-polyurethane elastomer liquid on a substrate, and forming a pressure-sensitive sensing array on the substrate by photoetching, curing and etching the spin-coating liquid to form a sensitive layer;
high-precision silk-screen printing silver paste on another substrate in a comb-shaped structure to form an electrode layer; screen printing and photocuring step layers on two sides or the periphery of the pressure-sensitive sensing array to form a hollow structure by the sensitive layer and the electrode layer; specifically, the substrate is dried, then conductive silver paste is printed on the substrate in a comb-shaped screen printing mode, the substrate is dried, coated, photocured, etched, stripped and dried to form an electrode layer, and then screen printing and photocuring step layers are carried out on two sides or the periphery of the pressure-sensitive sensing array.
And packaging the sensitive layer and the electrode layer based on adhesion to form the touch sensor with an initial response point.
In the case of mounting, the tactile sensor may be mounted on the base material by fusion-pressing or adhesion after the completion of the fabrication, or the pressure-sensitive layer or the electrode layer may be directly formed on the base material.
The foregoing description is only exemplary of the preferred embodiments of the disclosure and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention in the embodiments of the present disclosure is not limited to the specific combination of the above-mentioned features, but also encompasses other embodiments in which any combination of the above-mentioned features or their equivalents is made without departing from the inventive concept as defined above. For example, the above features and (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure are mutually replaced to form the technical solution.
Claims (10)
1. The utility model provides a touch perception gasbag subassembly of wearing formula blood pressure measurement is exclusively used in, includes the gasbag, installs the air cock on the gasbag which characterized in that: the air bag is formed by fusing and pressing at least two layers of base materials with different elastic moduli, and an air chamber is formed between two adjacent layers of base materials;
the touch sensor is a flexible pressure sensor, the touch sensor is arranged on the base material on one side relatively close to the wrist, and the elastic modulus of the base material relatively close to the wrist is smaller than that of the base material relatively far away from the wrist.
2. A haptically perceivable bladder assembly dedicated to wearable blood pressure measurement according to claim 1, wherein: the air bag is provided with at least two layers of air chambers which are communicated with each other to form a multi-layer spring type air chamber, and the adjacent air chambers are communicated with each other.
3. A haptically perceivable bladder assembly dedicated to wearable blood pressure measurement according to claim 1, wherein: the touch sensor comprises at least one of a resistance type film pressure sensor or a capacitance type film pressure sensor, and is arranged on the inner wall or the outer wall of the base material close to one side of the wrist to realize touch sensing.
4. A haptically perceivable bladder assembly dedicated to wearable blood pressure measurement according to claim 1, wherein: the touch perception air bag component also comprises a spring thimble which is contacted with a contact of the built-in touch sensor so that the touch sensor can be communicated with an internal circuit of the sphygmomanometer body.
5. A haptically perceivable bladder assembly dedicated to wearable blood pressure measurement according to claim 1, wherein: the gasbag still includes the reinforcement piece, the reinforcement piece laminates each other with the substrate of keeping away from wrist one side relatively to make the bulk modulus of elasticity that is close to the substrate of wrist one side in same air chamber be less than the modulus of elasticity of the substrate of keeping away from wrist one side.
6. A haptically perceivable bladder assembly dedicated to wearable blood pressure measurement according to claim 1, wherein: the haptic airbag assembly further includes: and the accessory and the base material are mutually fused and pressed.
7. A method for preparing the dedicated tactile airbag module for wearable blood pressure measurement according to any one of claims 1-6, comprising the following steps:
die cutting of the base material;
respectively fusing and pressing the accessory, the air faucet and the touch sensor to different base materials;
fusing and pressing the base material subjected to fusing and pressing of the accessory, the air faucet and the touch sensor to form an air bag;
die cutting and trimming;
carrying out hot bending molding on the air bag to ensure that the air bag keeps a specific bending radian;
and assembling the assembly, wherein the assembly comprises a spring thimble.
8. The method of claim 7, wherein: and aiming at the base material close to the wrist side, the base material is a relatively low elastic modulus base material, if the elastic modulus difference between the base materials is not enough, the base material with the side air chamber is reinforced, and the reinforcing sheet material is compounded with the base material in a hot melting way.
9. The method of claim 7, wherein: the touch sensor can be adhered to the inner surface or the outer surface of the base material at the near wrist side in an adhering or welding mode, and if the touch sensor is adhered to the outer surface, a layer of ultrathin base material needs to be added for outer layer coating treatment.
10. The method of claim 7, wherein: the preparation method of the touch sensor comprises the following steps:
spin coating a graphene-polyurethane elastomer onto a substrate;
photoetching, curing and etching the spin-coating liquid to form a pressure-sensitive sensing array on the substrate to form a sensitive layer;
high-precision silk-screen printing silver paste on another substrate in a comb-shaped structure to form an electrode layer;
screen printing and photocuring step layers on two sides or the periphery of the pressure-sensitive sensing array to form a hollow structure by the sensitive layer and the electrode layer; and packaging the sensitive layer and the electrode layer based on adhesion to form the touch sensor with an initial response point.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210625919.4A CN115054217A (en) | 2022-06-02 | 2022-06-02 | Special touch sensing air bag assembly for wearable blood pressure measurement and preparation method thereof |
| PCT/CN2022/111147 WO2023029905A1 (en) | 2022-06-02 | 2022-08-09 | Specialized tactile sensation air bag assembly for wearable blood pressure measurement, and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210625919.4A CN115054217A (en) | 2022-06-02 | 2022-06-02 | Special touch sensing air bag assembly for wearable blood pressure measurement and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115054217A true CN115054217A (en) | 2022-09-16 |
Family
ID=83199090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210625919.4A Pending CN115054217A (en) | 2022-06-02 | 2022-06-02 | Special touch sensing air bag assembly for wearable blood pressure measurement and preparation method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115054217A (en) |
| WO (1) | WO2023029905A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007054341A (en) * | 2005-08-25 | 2007-03-08 | Csp Kk | Cuff for hemadynamometer, and manufacturing method of air bag for the cuff |
| CN105686817A (en) * | 2016-03-29 | 2016-06-22 | 深圳金亿帝医疗设备股份有限公司 | Sphygmomanometer cuff and watch type electronic sphygmomanometer |
| WO2018005298A1 (en) * | 2016-06-26 | 2018-01-04 | Wen-Pin Shih | Wearable blood-pressure monitoring device and non-invasive blood-pressure monitoring method |
| KR101916309B1 (en) * | 2018-04-03 | 2018-11-08 | 최혁순 | Cuff for Sphygmomanometer |
| US20190021612A1 (en) * | 2017-07-20 | 2019-01-24 | Health & Life Co., Ltd. | Wrist sphygmomanometer |
| CN112384133A (en) * | 2018-07-13 | 2021-02-19 | 威里利生命科学有限责任公司 | Wearable sphygmomanometer with actuated cuff |
| CN112568884A (en) * | 2019-09-30 | 2021-03-30 | 华为终端有限公司 | Blood pressure measuring method and electronic equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101854639B1 (en) * | 2015-10-08 | 2018-05-04 | (주)참케어 | Wrist wearable blood pressure monitor |
| CN113080904A (en) * | 2019-12-23 | 2021-07-09 | 华为技术有限公司 | Air bag of electronic sphygmomanometer and electronic sphygmomanometer |
| CN112336016B (en) * | 2020-11-30 | 2023-03-21 | Oppo广东移动通信有限公司 | Intelligent watch and watchband device thereof |
-
2022
- 2022-06-02 CN CN202210625919.4A patent/CN115054217A/en active Pending
- 2022-08-09 WO PCT/CN2022/111147 patent/WO2023029905A1/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007054341A (en) * | 2005-08-25 | 2007-03-08 | Csp Kk | Cuff for hemadynamometer, and manufacturing method of air bag for the cuff |
| CN105686817A (en) * | 2016-03-29 | 2016-06-22 | 深圳金亿帝医疗设备股份有限公司 | Sphygmomanometer cuff and watch type electronic sphygmomanometer |
| WO2018005298A1 (en) * | 2016-06-26 | 2018-01-04 | Wen-Pin Shih | Wearable blood-pressure monitoring device and non-invasive blood-pressure monitoring method |
| US20190021612A1 (en) * | 2017-07-20 | 2019-01-24 | Health & Life Co., Ltd. | Wrist sphygmomanometer |
| KR101916309B1 (en) * | 2018-04-03 | 2018-11-08 | 최혁순 | Cuff for Sphygmomanometer |
| CN112384133A (en) * | 2018-07-13 | 2021-02-19 | 威里利生命科学有限责任公司 | Wearable sphygmomanometer with actuated cuff |
| CN112568884A (en) * | 2019-09-30 | 2021-03-30 | 华为终端有限公司 | Blood pressure measuring method and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023029905A1 (en) | 2023-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3566036B1 (en) | Blood pressure measurement system using force resistive sensor array | |
| TWI631930B (en) | Physiology signal sensing device | |
| KR100741224B1 (en) | Crystal for a telephone watch | |
| KR101907272B1 (en) | Watch bracelet | |
| CN211243345U (en) | Blood pressure wristwatch | |
| JP6863385B2 (en) | Sensors, bands, electronic devices and wristwatch-type electronic devices | |
| CN112336016B (en) | Intelligent watch and watchband device thereof | |
| CN112006671B (en) | Wearable vital sign monitoring equipment | |
| WO2017136383A1 (en) | Flexible electronic strip and its method for manufacture | |
| CN115054217A (en) | Special touch sensing air bag assembly for wearable blood pressure measurement and preparation method thereof | |
| KR20100083973A (en) | Touch input device and manufacturing method thereof | |
| JP3174783U (en) | Wrist sphygmomanometer | |
| JP5040678B2 (en) | Sensor mounting supporter and arm mounted biological information measuring device | |
| CN117942055A (en) | Pressure detection device and electronic equipment | |
| CN217085520U (en) | Alarm clock watch based on intelligent driving | |
| CN115988811A (en) | Integrated multi-component housing for an electronic device | |
| CN112472057A (en) | Wrist strap, electronic sphygmomanometer and vital sign monitor | |
| CN216394044U (en) | Inflatable blood pressure watch with air pump, sensor and composite cloth inflatable air bag | |
| CN116407102A (en) | Wearable device, physiological parameter measurement method thereof and electronic device | |
| CN216907074U (en) | Intelligent wearable device | |
| CN219418052U (en) | Cover plate, display assembly and intelligent wearable device | |
| CN218458094U (en) | Measure gasbag and wearable equipment for blood pressure | |
| CN110957159A (en) | Waterproof key, electronic equipment and assembling method of waterproof key | |
| CN206639200U (en) | Display device and electronic equipment with pressure sensitivity function | |
| WO2024131506A1 (en) | Air bag structure and intelligent wearable device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |