CN214258162U - Flexible pressure acquisition device and shoe-pad - Google Patents
Flexible pressure acquisition device and shoe-pad Download PDFInfo
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- CN214258162U CN214258162U CN202120361576.6U CN202120361576U CN214258162U CN 214258162 U CN214258162 U CN 214258162U CN 202120361576 U CN202120361576 U CN 202120361576U CN 214258162 U CN214258162 U CN 214258162U
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Abstract
The utility model discloses a flexible pressure acquisition device and shoe-pad, this flexible pressure acquisition device include the fabric conductor wire of being made by conductive fabric material and the flexible pressure line that the pressure-sensitive material that adopts each regional resistance evenly distributed under the initial condition made, flexible pressure line winding is in on the fabric conductor wire, be equipped with a plurality of pressure acquisition districts on the flexible pressure acquisition device, be located same in the pressure acquisition district flexible pressure line laminating still be equipped with the data output interface on the fabric conductor wire, the data output interface is connected with external data processing device. This shoe-pad includes the shoe-pad body and presss from both sides the above-mentioned flexible pressure collection system of establishing in the shoe-pad body, and the flexible pressure collection system and the shoe-pad of this scheme are satisfying carrying out under the prerequisite of gathering to human foot pressure data, and volume and thickness all reduce greatly.
Description
Technical Field
The utility model relates to a shoe-pad technical field, concretely relates to flexible pressure acquisition device and shoe-pad.
Background
In daily life, many people always have malformation or diseases caused by incorrect walking posture, and common feet such as splayed feet are easy to form O-shaped legs or X-shaped legs. Generally, the splayfoot is formed by long-term bad walking habits, although the bones cannot be damaged by slight inward splayfoot or outward splayfoot, the health is influenced by long-term walking. When people walk in the shape of the Chinese character 'Bazi', more pressure is easy to accumulate on the outer side of the foot, the contact chance between the outer side of the foot and the ground is greatly increased, the normal part of the foot contacting the ground is changed, the hidden change is not easy to cause self alertness, the skeleton of the leg is deformed after a long time, the pressure of the joint is increased, the pain is caused, and the O-shaped leg is formed; the same applies to the outward splayed walking, which means that the outward angle of the toes is too large, so that the knees move outwards over time, the legs become X-shaped, the pain of the knee ankle joints and the damage of the calf muscle group are caused, and the joint degeneration is accelerated.
At present, a lot of intelligent insoles appear in the market, some circuit devices are often added in the intelligent insoles to be used for collecting foot pressure data in the walking process of a human body, and the circuit devices are attached to a hard PCB (printed circuit board), so that the intelligent insoles can be in a whole hard state in the wearing process, and the comfort of people wearing the intelligent insoles is greatly reduced.
In order to solve the above technical problems, the applicant of the prior application of the utility model with the publication number CN210492823U proposes a flexible pressure collecting device and has mentioned the following technical solution in paragraph 0006 and 0030, wherein the flexible pressure collecting device comprises a flexible fabric PCB and a flexible pressure layer, the flexible pressure layer is made of a pressure-sensitive material with uniformly distributed resistance values in each area in an initial state, a fabric conductive circuit layer made of a conductive fabric material is arranged on the flexible fabric PCB, a plurality of pressure collecting areas are distributed on the fabric conductive circuit layer, and the pressure-sensitive material on the flexible pressure layer is attached to the pressure collecting areas; the flexible fabric PCB is further provided with an insulating layer, the insulating layer is clamped between the fabric conductive circuit layer and the flexible pressure layer, a vertical through hole is formed in the insulating layer at a position corresponding to an electric connection point of the fabric conductive circuit layer, an electric connection piece is arranged at the through hole, and the flexible pressure layer is electrically connected with the fabric conductive circuit layer through the electric connection piece; the insulating layer is the N layer that distributes from top to bottom, fabric conductive circuit layer is N-1 layer, except that all the other layers outside lower floor or the top layer on the insulating layer with vertical through-hole has all been seted up to the position that the electric connection point on fabric conductive circuit layer corresponds, each layer each through-hole department of insulating layer all is equipped with electric connector, and is adjacent two-layer wantonly fabric conductive circuit layer passes through electric connector carries out the electricity and connects, the superiors or lower floor fabric conductive circuit layer to one side on flexible pressure layer is passed through electric connector with flexible pressure layer electricity is connected. The flexible pressure acquisition device adopts the conductive fabric material to manufacture the fabric conductive circuit layer, so that the flexible fabric PCB is integrally in a softer state similar to fabric, meanwhile, the fabric conductive circuit is integrally more complex and has a smaller area, the insulating layer is arranged to be N layers, and the fabric conductive circuit layer is arranged to be N-1 layers, and the applicant finds that the following problems exist in the design in practical use: in order to meet the requirements of complex fabric conductive circuit layers and small-area data acquisition, the fabric conductive circuit layers are required to be arranged into N-1 layers, and meanwhile, an insulating layer is required to be arranged between every two adjacent fabric conductive circuit layers, so that the overall size and thickness of the flexible pressure acquisition device are greatly increased.
SUMMERY OF THE UTILITY MODEL
The aforesaid to prior art exist not enough, the to-be-solved technical problem of the utility model is: how to provide one kind and satisfying the prerequisite of gathering human foot pressure data, flexible pressure acquisition device that volume and thickness can reduce greatly simultaneously.
Simultaneously, this application still provides an insole, and this insole is satisfying under the prerequisite of gathering human foot pressure data, and volume and thickness can reduce greatly.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a flexible pressure acquisition device comprises a fabric conductive wire made of a conductive fabric material and flexible pressure wires made of a pressure-sensitive material with resistance values of all areas uniformly distributed in an initial state, wherein the flexible pressure wires are wound on the fabric conductive wire, a plurality of pressure acquisition areas are arranged on the flexible pressure acquisition device, the flexible pressure wires in the same pressure acquisition areas are attached, a data output interface is further arranged on the fabric conductive wire, and the data output interface is connected with an external data processing device.
The pressure-sensitive material is an impedance pressure-sensitive material with material impedance which changes correspondingly when the pressure-sensitive material is deformed under pressure, and the resistance value of the pressure-sensitive material is distributed uniformly in an initial state, namely the resistance value of each local position of the pressure-sensitive material is distributed uniformly when the pressure-sensitive material is not deformed under pressure.
The conductive fabric is a material which integrates a conducting wire connected with an electronic element with the fabric, can be used for replacing a traditional hard PCB and has the characteristic of soft fabric.
Therefore, the fabric conductive wire is made of the conductive fabric material, and then the flexible pressure line is wound on the fabric conductive wire, so that when people wear the insole with the flexible pressure acquisition device, the resistance value distribution of the pressure-sensitive material in each pressure acquisition area is uniform when feet do not act on the flexible pressure acquisition device; when the foot acts on the flexible pressure acquisition device, each pressure acquisition area corresponds to each position of the foot, the different positions of the foot apply different pressure degrees to the pressure-sensitive material, so that the resistance values of the pressure-sensitive material at different local positions are correspondingly changed differently, and therefore, the pressure distribution conditions of different positions of the sole of the foot when the foot tramples are reflected by the voltage values of different areas of the pressure acquisition area, so that foot pressure data of different areas are obtained, and the data are transmitted to an external data processing device through the data output interface, so that a foundation is provided for subsequent data analysis.
This scheme is through making the fabric conductor wire with conductive fabric material to with flexible pressure line winding on the fabric conductor wire, just so can arrange the fabric conductor wire that has flexible pressure line to twine and carry out pressure acquisition district that pressure acquisition is carried out at arbitrary needs, compare with the structural style that fabric conductive circuit layer need adopt the multilayer design among the prior art, this scheme is satisfying under the prerequisite of gathering human foot pressure data, volume and thickness all reduce greatly.
Preferably, two fabric conductive wires are arranged in the pressure acquisition area and are crosswise attached in the height direction of the flexible pressure acquisition device, so that the flexible pressure lines wound at the corresponding positions of the two fabric conductive wires are attached.
Like this, through carrying out the cross-lamination with two fabric conductor wires in the pressure acquisition district for two fabric conductor wires correspond the flexible overhead gage of position winding also can cross-lamination, thereby make when the foot is used in flexible pressure acquisition device, the pressure-sensitive material on two fabric conductor wires in the pressure acquisition district can effectual exerted pressure, and then obtains the foot pressure data of different regions.
Preferably, two fabric conductive wires are arranged in the pressure acquisition region, and the two fabric conductive wires are contacted and attached in the same plane, so that the flexible pressure lines wound at the corresponding positions of the two fabric conductive wires are attached.
Like this, set up two fabric conducting wires in the pressure acquisition district in the coplanar contact and laminating, can guarantee that pressure sensitive material is effectively exerted under the prerequisite of pressure, can also further reduce whole flexible pressure acquisition device's thickness and volume.
Preferably, the fabric conductive wires are arranged in parallel along the width direction of the flexible pressure acquisition device, arc-shaped attaching parts are formed at parts of the fabric conductive wires located in the pressure acquisition regions, and the arc-shaped attaching parts of the two fabric conductive wires located in the same pressure acquisition region are contacted and attached to each other, so that the flexible pressure wires wound on the arc-shaped attaching parts are contacted and attached to each other.
Like this, with fabric conducting wire along flexible pressure acquisition device's width direction parallel arrangement, such mode can make things convenient for the wiring of fabric conducting wire to can set up arc laminating portion in the position that corresponds according to the distribution in pressure acquisition district, thereby make things convenient for the collection of pressure acquisition district data.
Preferably, said flexible pressure line is wound around said fabric conductive line at a location corresponding to each of said pressure acquisition regions.
Therefore, the flexible pressure lines are only wound on the fabric conductive lines at the corresponding positions of the pressure acquisition areas, so that the overall volume of the flexible pressure lines can be effectively reduced and the use cost is reduced on the premise of meeting the data acquisition requirement.
Preferably, the pressure acquisition regions are M × N and are arranged on the flexible pressure acquisition device in a rectangular array of M longitudinal rows and N transverse columns.
In this way, the pressure acquisition regions are arranged in a rectangular array of M longitudinal rows and N transverse columns, so that pressure data can be acquired for a plurality of regions.
Preferably, there are two of the pressure collection regions, and the two pressure collection regions are respectively located at positions corresponding to the heel and the ball of the foot of the human body.
Therefore, the heel position and the forefoot position of the human foot are the most important data acquisition points, and the pressure acquisition areas are arranged at the two positions, so that the pressure data acquisition at the two positions is ensured.
Preferably, the number of the pressure collecting areas is four, and the four pressure collecting areas are respectively positioned at the positions corresponding to the first toe-up joint, the fifth toe-up joint, the thumb and the heel of the human foot.
In this way, the pressure collection areas are arranged at the positions of the first toe joint, the fifth toe joint, the thumb and the heel of the human foot, so that the pressure distribution of the human foot can be effectively analyzed by using fewer collection points.
An insole comprises an insole body and the flexible pressure acquisition device arranged in the insole body.
Like this, through at this internal flexible pressure collection system that sets up of shoe-pad, when the human foot effect was gone up on the shoe-pad down like this, will exert pressure to flexible pressure collection system, and then flexible pressure collection system can gather the pressure of exerting, obtains the foot pressure data in each pressure collection district of human body.
Preferably, the insole body comprises a surface layer and a bottom layer, the flexible pressure acquisition device is clamped between the surface layer and the bottom layer, a first insulating layer is further arranged between the flexible pressure acquisition device and the surface layer, and a second insulating layer is further arranged between the flexible pressure acquisition device and the bottom layer.
Therefore, the flexible pressure acquisition device can be clamped between the surface layer and the bottom layer by arranging the surface layer and the bottom layer, and the surface layer and the bottom layer respectively protect the flexible pressure acquisition device from the upper side and the lower side, so that the flexible pressure acquisition device is prevented from being in direct contact with the feet of a human body and the inside of shoes, and the service life of the flexible pressure acquisition device is prolonged; meanwhile, a first insulating layer is arranged between the surface layer and the flexible pressure acquisition device, a second insulating layer is arranged between the flexible pressure acquisition device and the bottom layer, and the first insulating layer and the second insulating layer are utilized to realize insulating treatment between the flexible pressure acquisition device and the surface layer and between the flexible pressure acquisition device and the bottom layer, so that the safety of the insole in the using process is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a flexible pressure collecting device according to a first embodiment of the present invention;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is a schematic structural view of a shoe pad according to a first embodiment of the present invention;
FIG. 4 is a schematic view of a layer structure of an insole according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a flexible pressure collecting device in the second embodiment of the present invention;
fig. 6 is an enlarged schematic view of fig. 5 at B.
Description of reference numerals: the insole comprises a data output interface 1, a fabric conducting wire 2, a flexible pressure wire 3, a pressure acquisition area 4, an insole body 5, a surface layer 6, a first insulating layer 7, a flexible pressure acquisition device 8, a second insulating layer 9 and a bottom layer 10.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
The first embodiment is as follows:
as shown in the attached drawings 1 and 2, the flexible pressure acquisition device comprises a fabric conductive wire 2 made of a conductive fabric material and flexible pressure lines 3 made of a pressure-sensitive material with resistance values of all areas uniformly distributed in an initial state, wherein the flexible pressure lines 3 are wound on the fabric conductive wire 2, a plurality of pressure acquisition areas 4 are arranged on the flexible pressure acquisition device 8, the flexible pressure lines 3 in the same pressure acquisition area 4 are attached, a data output interface 1 is further arranged on the fabric conductive wire 2, and the data output interface 1 is connected with an external data processing device.
The pressure-sensitive material is an impedance pressure-sensitive material with material impedance which changes correspondingly when the pressure-sensitive material is deformed under pressure, and the resistance value of the pressure-sensitive material is distributed uniformly in an initial state, namely the resistance value of each local position of the pressure-sensitive material is distributed uniformly when the pressure-sensitive material is not deformed under pressure.
The conductive fabric is a material which integrates a conducting wire connected with an electronic element with the fabric, can be used for replacing a traditional hard PCB and has the characteristic of soft fabric.
Thus, the fabric conductive wire 2 is made of conductive fabric material, and then the flexible pressure line 3 is wound on the fabric conductive wire 2, when people wear the insole with the flexible pressure acquisition device 8, when feet do not act on the flexible pressure acquisition device 8, the resistance value distribution of the pressure-sensitive material of each pressure acquisition area 4 is uniform; when the foot acts on the flexible pressure acquisition device 8, each pressure acquisition area 4 corresponds to each position of the foot, the different positions of the foot apply different pressure degrees to the pressure-sensitive material, so that the resistance values of the pressure-sensitive material at the different pressed local positions correspondingly change, therefore, the voltage value conditions of different areas of the pressure acquisition area 4 reflect the pressure distribution conditions of different positions of the sole when the foot tramples, and the foot pressure data of different areas are obtained and transmitted to an external data processing device through the data output interface 1, and a basis is provided for subsequent data analysis.
This scheme is through making fabric conductor wire 2 with the electrically conductive fabric material to with flexible pressure line 3 winding on fabric conductor wire 2, just so can arrange the fabric conductor wire 2 that has flexible pressure line 3 to twine and carry out pressure acquisition district 4 that pressure acquisition was carried out at will, compare with the structural style that fabric conductive circuit layer needs to adopt the multilayer design among the prior art, this scheme is satisfying under the prerequisite of gathering human foot pressure data, volume and thickness all reduce greatly.
In this embodiment, two fabric conductive wires 2 are disposed in the pressure acquisition region 4, and the two fabric conductive wires 2 contact and attach to each other in the same plane, so that the flexible pressure lines 3 wound around the two fabric conductive wires 2 are attached to each other.
Thus, the two fabric conductive wires 2 in the pressure acquisition area 4 are arranged in the same plane to be contacted and attached, so that the thickness and the volume of the whole flexible pressure acquisition device 8 can be further reduced on the premise that the pressure-sensitive material is effectively applied with pressure.
In this embodiment, the fabric conductive wires 2 are arranged in parallel along the width direction of the flexible pressure acquisition device 8, and the portions of the fabric conductive wires 2 located in the respective pressure acquisition regions 4 form arc-shaped attaching portions, and the arc-shaped attaching portions of the two fabric conductive wires 2 located in the same pressure acquisition region 4 are contacted and attached, so that the flexible pressure wires 3 wound on the arc-shaped attaching portions are contacted and attached.
Like this, with fabric conducting wire 2 along flexible pressure acquisition device 8's width direction parallel arrangement, such mode can make things convenient for fabric conducting wire 2's wiring to can set up arc laminating portion in the position that corresponds according to pressure acquisition district 4's distribution, thereby make things convenient for the collection of pressure acquisition district 4 data.
In this embodiment, flexible pressure wires 3 are wound around the conductive fabric wire 2 at locations corresponding to each of the pressure acquisition zones 4.
Therefore, the flexible pressure lines 3 are only wound on the fabric conductive wires 2 at the corresponding positions of the pressure acquisition regions 4, so that the overall volume of the flexible pressure lines 3 can be effectively reduced and the use cost can be reduced on the premise of meeting the data acquisition.
In this embodiment, there are M × N pressure acquisition regions 4 arranged on the flexible pressure acquisition device 8 in a rectangular array of M longitudinal rows and N transverse columns.
In this way, the pressure acquisition regions 4 are arranged in a rectangular array of M longitudinal rows and N transverse columns, so that pressure data acquisition can be performed for a plurality of regions.
In this embodiment, there are two pressure acquisition regions 4, each located at a position corresponding to the heel and the ball of the foot of a human body.
Thus, the heel and forefoot positions of the human foot are the most important data acquisition points, and the pressure acquisition regions 4 are arranged at the two positions, so that the pressure data acquisition at the two positions is ensured.
In this embodiment, there are four pressure acquisition areas 4 located at positions corresponding to the first and fifth toe joints, the thumb and the heel of the human foot, respectively.
Thus, the pressure collection regions 4 are arranged at the positions of the first toe joint, the fifth toe joint, the thumb and the heel of the human foot, so that the pressure distribution of the human foot can be effectively analyzed by using fewer collection points.
As shown in fig. 3, the insole comprises an insole body 5 and the flexible pressure acquisition device 8 arranged in the insole body 5.
Like this, through set up flexible pressure acquisition device 8 in shoe-pad body 5, when the human foot effect was on the shoe-pad down like this, will exert pressure to flexible pressure acquisition device 8, and then flexible pressure acquisition device 8 can gather the pressure of exerting, obtains the foot pressure data of each pressure acquisition district 4 of human body.
As shown in fig. 4, in this embodiment, the insole body 5 includes a surface layer 6 and a bottom layer 10, the flexible pressure collecting device 8 is sandwiched between the surface layer 6 and the bottom layer 10, a first insulating layer 7 is further disposed between the flexible pressure collecting device 8 and the surface layer 6, and a second insulating layer 9 is further disposed between the flexible pressure collecting device 8 and the bottom layer 10.
Therefore, by arranging the surface layer 6 and the bottom layer 10, the flexible pressure acquisition device 8 can be clamped between the surface layer 6 and the bottom layer 10, the surface layer 6 and the bottom layer 10 respectively protect the flexible pressure acquisition device 8 from the upper side and the lower side, the flexible pressure acquisition device 8 is prevented from being in direct contact with the feet of a human body and the inside of shoes, and the service life of the flexible pressure acquisition device 8 is prolonged; meanwhile, a first insulating layer 7 is arranged between the surface layer 6 and the flexible pressure acquisition device 8, a second insulating layer 9 is arranged between the flexible pressure acquisition device 8 and the bottom layer 10, and the first insulating layer 7 and the second insulating layer 9 are utilized to realize insulating treatment between the flexible pressure acquisition device 8 and the surface layer 6 and the bottom layer 10, so that the safety of the insole in the using process is ensured.
Example two:
the difference from the first embodiment is that, as shown in fig. 5 and fig. 6, in the present embodiment, two fabric conductive wires 2 are disposed in the pressure acquisition region 4, and the two fabric conductive wires 2 are crosswise attached in the height direction of the flexible pressure acquisition device 8, so that the flexible pressure lines 3 wound around the two fabric conductive wires 2 are attached.
Like this, through carrying out the cross-lamination with two fabric conductor lines 2 in the pressure acquisition district 4 for two fabric conductor lines 2 correspond the flexible overhead gage 3 of position winding also can cross-lamination, thereby make when the foot is used in flexible pressure acquisition device 8, the pressure-sensitive material on two fabric conductor lines 2 in the pressure acquisition district 4 can effectual exerted pressure, and then obtains the foot pressure data of different regions.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that those modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all should be covered in the scope of the claims of the present invention.
Claims (10)
1. The flexible pressure acquisition device is characterized by comprising a fabric conductive wire made of a conductive fabric material and flexible pressure lines made of a pressure-sensitive material with uniformly distributed resistance values in all areas in an initial state, wherein the flexible pressure lines are wound on the fabric conductive wire, a plurality of pressure acquisition areas are arranged on the flexible pressure acquisition device, the flexible pressure lines in the same pressure acquisition areas are attached, a data output interface is further arranged on the fabric conductive wire, and the data output interface is connected with an external data processing device.
2. The flexible pressure acquisition device of claim 1, wherein two fabric conductive wires are disposed in the pressure acquisition region, and the two fabric conductive wires are crosswise attached in a height direction of the flexible pressure acquisition device, so that the two flexible pressure wires wound at corresponding positions of the two fabric conductive wires are attached.
3. The flexible pressure acquisition device of claim 1, wherein two fabric conductive wires are disposed in the pressure acquisition region, and the two fabric conductive wires are contacted and attached in the same plane, so that the flexible pressure lines wound around the two fabric conductive wires at corresponding positions are attached.
4. The flexible pressure acquisition device of claim 2, wherein the fabric conductive wires are arranged in parallel along the width direction of the flexible pressure acquisition device, and the portions of the fabric conductive wires located in each pressure acquisition region form arc-shaped attaching portions, and the arc-shaped attaching portions of two fabric conductive wires located in the same pressure acquisition region are contacted and attached, so that the flexible pressure wires wound on the arc-shaped attaching portions are contacted and attached.
5. The flexible pressure acquisition device of claim 1 wherein said flexible pressure line is wrapped around said fabric conductive thread at a location corresponding to each of said pressure acquisition zones.
6. The flexible pressure collection device of claim 1, wherein said pressure collection regions are M x N and are arranged on the flexible pressure collection device in a rectangular array of M longitudinal rows and N transverse columns.
7. The flexible pressure acquisition device of claim 1 wherein there are two pressure acquisition regions located at positions corresponding to the heel and the ball of the foot of a human foot, respectively.
8. The flexible pressure transducer of claim 1, wherein there are four pressure transducer regions located at positions corresponding to the first and fifth toe joints, the thumb and the heel of the human foot.
9. An insole comprising an insole body, further comprising a flexible pressure acquisition device of claim 1 disposed within the insole body.
10. The insole according to claim 9, wherein said insole body comprises a surface layer and a bottom layer, said flexible pressure collecting device is sandwiched between said surface layer and said bottom layer, a first insulating layer is further disposed between said flexible pressure collecting device and said surface layer, and a second insulating layer is further disposed between said flexible pressure collecting device and said bottom layer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120361576.6U CN214258162U (en) | 2021-02-07 | 2021-02-07 | Flexible pressure acquisition device and shoe-pad |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120361576.6U CN214258162U (en) | 2021-02-07 | 2021-02-07 | Flexible pressure acquisition device and shoe-pad |
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| CN214258162U true CN214258162U (en) | 2021-09-24 |
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| CN202120361576.6U Active CN214258162U (en) | 2021-02-07 | 2021-02-07 | Flexible pressure acquisition device and shoe-pad |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114886413A (en) * | 2022-03-25 | 2022-08-12 | 四川大学华西医院 | Method and device for evaluating bilateral pressure of human body |
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2021
- 2021-02-07 CN CN202120361576.6U patent/CN214258162U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114886413A (en) * | 2022-03-25 | 2022-08-12 | 四川大学华西医院 | Method and device for evaluating bilateral pressure of human body |
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