DE202012102025U1 - Arrangement for detecting physiological signals - Google Patents

Abstract

Arrangement for detecting physiological signals, comprising: a bottom layer (20); at least one electrode (11) arranged on the upper surface of the bottom layer (20), a first receiving space (S1) being formed between the electrode (11) and the bottom layer (20); and at least one absorption unit (30), which is located in the first receiving space (S1), the absorption unit (30) coming into contact with the electrode (11) on the upper side and with the bottom layer (20) on the lower side.

Description

The invention relates to an improved arrangement for detecting physiological signals, in particular an arrangement in which a water-absorbing and moistening effect is fulfilled and its electrode can be moistened. Thus, the conductivity upon detection of physiological signals can be increased when the inventive arrangement for detecting physiological signals comes into contact with the body surface. In addition, the inventive arrangement for detecting physiological signals for use in arid areas is suitable.

In the measurement of human heart rates, brain waves, and other physiological signals, multiple electrodes of a physiological measuring device are adhered to different body parts of a person to be examined. The electrical current spreads into the surrounding tissue or reaches the body surface as the nerve impulses sensed by these electrodes (i.e., the change in membrane potential) flow through human organs (e.g., heart, head). In this way, the electrical current is transmitted via electrical lines to the physiological measuring device in order to convert it into data. As a result, the person to be checked can learn about the condition (eg heart rate, brain waves) at the point to be checked.

The above-mentioned electrode structurally has mainly a sticky base layer (such as conductive adhesive layer) and a conductor portion connected thereto. When detecting physiological signals, the stickiness of the base layer is utilized. But it can also be coated with the water-soluble gel for conductivity to the body surface such. B. moisturize skin. Thus, the electrical current on the body surface through the base layer, the conductor section and the electrical line to reach the physiological instrument. Conversely, it is then the electrode treatment in which the electrical current is passed from the physiological measuring device to the body surface. Thus, the electric current can penetrate into the body surface to stimulate a body part to be treated.

The base layer of the above-mentioned electrode and the water-soluble gel co-acting therewith are not permeable to air, so that allergic problems may occur, resulting in discomfort in use. In addition, the surface of the human body produces dander (in dry skin), fats (in greasy skin) and other substances that can easily adhere to the base layer and thus hinder the flow of current. In addition, the surface water can easily by such. B. evaporation lost because the human body has a temperature. As a result, however, the gel used can also solidify and form no moist state, which causes degumming or detachment of the base layer. Also, the power line is impaired, which makes the detection of physiological signals difficult. Especially in a dry environment, it is even more difficult to retain water, thus easily interrupting detection. Also, the base layer is slightly cracked.

When using several conventional electrodes, it is also easy to make contact with each other when they are arranged side by side. However, this can lead to a short circuit.

The invention provides an arrangement for the detection of physiological signals, which fulfills a water-absorbing and moisturizing effect in order to prevent a rapid loss of moisture and to moisturize the electrode in a favorable manner. Thus, the conductivity can be increased upon detection of physiological signals. In addition, the inventive arrangement for detecting physiological signals for use in arid areas is suitable. This ensures optimal operability for the detection of physiological signals.

In addition, the invention provides an arrangement for detecting physiological signals, which is further provided with an edge portion which fulfills the positioning effect, increases the wearing comfort and improves the aesthetic appearance. Furthermore, the deterioration of the transmission of the electric current can be minimized. At the same time noise is reduced.

Furthermore, an arrangement for detecting physiological signals is created by the invention, which swells after water absorption to a considerable extent. This ensures a complete concern for the human body surface.

The invention has in particular the features specified in claim 1. Advantageous embodiments of the invention are specified in the subclaims.

According to the invention there is provided an arrangement for detecting physiological signals, comprising:
a soil layer;
at least one electrode disposed on the upper surface of the bottom layer, between the Electrode and the bottom layer creates a first receiving space; and
at least one absorption unit, which is located in the first receiving space, wherein the absorption unit comes into contact with the top side of the electrode and bottom side with the bottom layer.

With this configuration, the absorbing and moisturizing effect can be achieved while preventing rapid moisture loss. In addition, the electrode can be humidified in a favorable manner. The absorption unit may swell after the water absorption in order to bring the electrodes in a projecting position. This ensures firm contact with the human body surface. In this way, the detection of physiological signals of the person to be measured can be facilitated, which increases the ease of use. In addition, an edge portion is additionally provided, which fulfills the positioning effect, increases the wearing comfort and improves the aesthetic appearance. Furthermore, the deterioration of the transmission of the electric current can be minimized. At the same time noise is reduced.

In the following the invention and its embodiments will be explained in more detail with reference to the drawing. In the drawing shows.

1 a perspective view of an embodiment of an inventive arrangement for detecting physiological signals;

2 a section along the line AA in 1 ;

3 a section along the line BB in 1 ;

4 the arrangement according to the invention 2 wherein the electrodes are each provided with an extension wire, wherein the bottom layer has a lower fabric layer and a waterproof upper layer lying thereon;

5 an exploded perspective view of the inventive arrangement according to 1 further comprising an edge portion, wherein between the electrodes connecting webs are provided and the electrodes are each provided with an extension wire;

6 a section through the inventive arrangement according to 2 further comprising a rim portion;

7 a simplified sectional view of the arrangement according to the invention;

8th an exploded perspective view of the inventive arrangement according to 7 , which is further provided with an edge portion;

9 a perspective assembly of the inventive arrangement according to 8th ;

10 a sectional view of the arrangement according to the invention, wherein the in 7 shown absorption unit is constructed of a water-storing insert and a receiving bag;

11 a sectional view according to 10 wherein the receiving bag is made of a water-permeable topsheet and a waterproofing backsheet, and the absorption unit swells after absorbing water in a protruding position; and

12 a front view of the arrangement according to the invention, which is attached to the inside of a vest.

Like from the 1 to 11 can be seen, has an inventive arrangement 1 at least one electrode for detecting physiological signals 11 , a soil layer 20 and at least one absorption unit 30 on. The electrode 11 serves the contact with the surface of the body part to be detected. The absorption unit 30 is aligned to the electrode 11 arranged. The soil layer 20 can directly with an object such. B. garment 50 [please refer 12 ] be connected.

The order 1 for detecting physiological signals is as out 7 as a single electrode 11 executed. The electrode 11 is at the top surface of the soil layer 20 arranged, being between the electrode 11 and the soil layer 20 a first receiving space S1 is formed in which the absorption unit 30 is positioned. The absorption unit 30 rests on top of the electrode 11 off and comes down with the soil layer 20 in touch. In this way, the arrangement according to the invention is given a good water absorption capacity, whereby the electrode 11 slightly from the absorption unit 30 can be moistened.

The inventive arrangement 1 for the detection of physiological signals is dependent on the number of electrodes used 11 executed differently. As an example, a single electrode 11 used. A not shown item such. B. wrist band or wrist guard, in conjunction with the inventive arrangement 1 for the registration of physiological signals is at the human wrist site [not shown] arranged and works with an electronic device, not shown, such. B. multimedia player together, with an unspecified additional device such. B. earphones, is electrically connected to the other end of the electronic device. The attachment is on another body part, such. As ear, attached and serves as a ground or conductive negative pole. This results in a detection loop. Become multiple electrodes 11 used is the arrangement of the invention 1 not conditionally attached at the site of the wrist for the detection of physiological signals. As in 12 This can be attached to a garment 50 to be appropriate. By two in the garment 50 located electrodes 11 this results in the detection loop.

The electrode 11 is made by weaving non-conductive fiber yarns and conductive fiber yarns, with multiple meshes between the non-conductive fiber yarns and conductive fiber yarns 111 arise. The electrode 11 has a conductive area 112 on top of the conductive fiber yarns of the electrode 11 is woven to increase the contact area. The stitches 111 the electrode 11 are suitable for the infiltration of conductive medium [such. Water, physiological saline] and prevent foreign matter [e.g. B. dust particles] in the electrode 11 penetration. At the same time, they facilitate the subsequent cleaning or removal of foreign substances mentioned above and maintenance. In this way can interfere with the conductive area 112 be avoided. At the same time noise is reduced. In addition, the absorption unit 30 Easier to absorb the moisture, which fulfills the moisturizing effect. In the illustrated embodiment, the electrode 11 made entirely of several conductive fiber yarns, eliminating the electrode 11 nationwide can fulfill the conductive effect. In this way the detection is favored.

So that the absorption unit 30 evenly the electrode 11 touched and moistened at the same time, this is the bottom side with a plurality of spaced, non-slip sections 31 such as As ribs or grooves and the bottom layer 20 upper side with a plurality of spaced, non-slip counterparts 21 such as B. grooves or ribs, so that the non-slip sections 31 and the non-slip mating sections 21 are adapted to each other and can interlock for positive connection. In this way, the absorption units 30 all stand stable and upright in the respective first receiving spaces S1. This avoids a projecting unevenness on the surface of the electrode 11 by the slipping of the absorption unit 30 occurs. Conversely, the non-slip counter section 21 as a rib and the non-slip section 31 be designed as an adapted groove for the positive connection.

The absorption unit 30 can be made of cotton paper, cotton fabric, silica gel, absorbent foam material, Zottenhaarmasse such. As pulp, sodium polyacrylate, other equivalent polymer such. Acrylic acid, propenoic acid or other equivalent superabsorbent polymer. As a result, the types are increased, causing a practical replacement and the restriction to single material is avoided.

The absorption unit 30 is made of elastomer and formed their shape for low cost spherical or block-shaped. This is the absorption unit according to the invention 30 elastic, so that it is easy to bend or bend and then easily return to its original shape. So it can fit precisely on the human body surface or adapted to the curve of the human body surface. This ensures easy use and replacement.

The soil layer 20 is made of fabric material or waterproof material. Is the soil layer 20 Made of fabric material, this is permeable to air. Is the absorption unit 30 limited in the first receiving space S1, the water or moisture can pass through the electrode and from the absorption unit 30 be absorbed. This will prevent the water or moisture from getting through the assembly 1 expires to detect physiological signals. By this measure, the electrodes 11 be constantly moistened to ensure a long-term flow of electricity. Is the soil layer 20 Made of waterproof material, this may be a piece of plastic or made of polyester fiber to achieve the waterproof effect. This avoids the loss of water or moisture for electrical conductivity. This is how the moisturizing effect can be achieved. However, the soil layer according to the invention 20 not limited to this. How out 4 can be seen, the soil layer 20 a lower fabric layer 23 and a waterproof upper layer lying on top of it 22 on. The waterproof upper layer 22 such as B. made of polyester fiber material, comes with the absorption unit 30 in contact and thus achieves the waterproof effect. At the same time, the waterproof upper layer 22 from the lower tissue layer 23 protected. In addition, the waterproof upper layer 22 upper side with a plurality of non-slip counterparts 21 be provided while the lower fabric layer 23 attached to a garment.

There are according to the invention a plurality of electrodes 11 and absorption units 30 intended. That is, two or more than two electrodes 11 and absorption units 30 available. According to 2 and 4 are two electrodes 11 together with two absorption units 30 intended. The two electrodes 11 are spaced from each other at the upper surface of the bottom layer 20 arranged [see 1 ]. Between the electrodes 11 and the soil layer 20 in each case a first receiving space S1 is formed. The two absorption units 30 are positioned in the respective first accommodating spaces S1. In addition, the absorption unit come 30 on the top side with the respective electrodes 11 and underside with the soil layer 20 in contact, so that the electrodes 11 from the respective absorption units 30 be moistened.

How out 4 and 5 can be seen, is at least one connecting web 12 between every two adjacent electrodes 11 intended. Between the connecting bridge 12 and the soil layer 20 arises at least a second receiving space S2. These electrodes 11 and the connecting bridge 12 are to one with the shape of the soil layer 20 corresponding upper class 10 together. Using the connecting bridge 12 can the electrodes 11 quickly on opposite sides of a human body part, such. B. the head part, the back part and the chest part, be arranged. This avoids a short circuit due to contacts between the electrodes 11 comes about.

The second receiving space S2 serves to accommodate other objects, such. As cable, sensor, control unit, etc. If no objects are received in the second receiving space S2, is the connecting web 12 directly on the upper surface of the soil layer 20 ,

Is the electrode 11 Larger dimensions, this can be used to reduce costs and for electrical connection with the electrical current flowing on the body surface with at least one extension wire 13 be provided [see 4 and 5 ], which in the enlarged section 4 is drawn. One end of the extension wires 13 extends in the respective electrodes 11 and is electrically conductive 112 connected while the other end of the extension wires 13 from one side of the respective electrodes 11 protrudes. In this way, the electrical connection of the extension wire 13 the respective electrode 11 with the electric current to the human body surface more easily produced when the absorption unit 30 swells after receiving water and thus the respective electrode 11 will be charged. It can also be the extension wire 13 be provided when the single electrode 11 is used in the inventive arrangement. The extension wire 13 may vary depending on the dimensions of each electrode 11 optionally be provided if more than two electrodes 11 be used in the inventive arrangement.

The extension wire 13 the above-mentioned electrode 11 is made of several conductive textile threads and therefore softer. The extension wire 13 is electrically connected to an electrical lead [not shown], the other end of the electrical lead being electrically connected to a physiological device [not shown].

In this way, the electrical current flows through the electrode on the body surface 11 , the extension wire 13 and the electrical line and then passes to the physiological device. In the illustrated embodiment, the extension wire 13 no required component. But it can also be the electrode 11 directly electrically connected to the electrical line [not shown].

How out 5 and 6 can be seen, the arrangement according to the invention 1 for detection of physiological signals also has a border section 40 on, its bottom side 41 with the edge of the bottom surface of the soil layer 20 and its upper side 42 with the edge of the upper surface of the electrodes 11 and the connecting bridge 12 existing upper class 10 connected is. The edge of the upper surface of the upper class 10 is after the edge of the bottom surface of the soil layer 20 Aligned so they are slightly off the edge section 40 wrapped for attachment to increase the comfort and aesthetic sense of the user. In this embodiment, the connecting web 12 be optionally provided as needed. How out 6 can be seen, the soil layer 20 only on its upper surface with two spaced apart electrodes 11 Be provided so that the top side 42 of the border section 40 only the edge of the upper surface of the two electrodes 11 combines. Through the edge section 40 the area to be sewn is easily recognizable when the arrangement according to the invention for detecting physiological signals on a garment 50 is sewn on [see 10 and 11 ]. In this way, the sewing thread can 60 along the edge section 40 run to prevent the absorption unit 30 Sewn by mistake and their structure is thus destroyed. In addition, the two electrodes 11 at the same time quickly, practically and firmly attached to the part of the body to be detected, without having to bring them separately into the position when the Detecting person provided with the inventive arrangement garment 50 attracts.

8th shows a simplified arrangement according to the invention with the edge portion 40 , In the 7 is this simplified arrangement to see, wherein the arrangement in cooperation with the edge portion 40 out 9 is apparent. The lower side 41 of the border section 40 is with the edge of the bottom surface of the soil layer 20 connected while the upper side 42 of the border section 40 with the edge of the upper surface of the electrode 11 connected is. The edge of the upper surface of the electrode 11 is after the edge of the bottom surface of the soil layer 20 aligned what the wrapping and fixing of the edge section 40 favored. At the same time the wearing comfort and the aesthetic feeling of the user are also fulfilled. Further, a simple connection with a matching garment 50 guaranteed.

According to 10 is the absorption unit 30 furthermore with at least one water-storing insert 33 and a water-storing deposit 33 enveloping reception bag 34 provided to prevent rapid loss of moisture. When using several water-storing deposits 33 These are from the receiving bag 34 Envelopes and bound to prevent the multiple water-storing deposits 33 solve each other. This is ensured by the absorption unit 30 for adjusting and supporting the electrode 11 , That is, it fulfills the water-storing and supporting effect. When the inventive arrangement adheres to the body surface, the absorption unit 30 against the respective electrode 11 issue. This results in a complete concern in adaptation to the curve of the human body surface without gaps appear. In this way, the electric current on the body surface can easily contact the electrode 11 reach, which favors the detection of the change of physiological signals.

The reception bag 34 is bottom side with a plurality of non-slip sections 31 provided while the bottom layer 20 on the upper side with a plurality of non-slip counterparts 21 is provided. The non-slip counterparts 21 and the non-slip sections 31 are adapted to each other so that they interlock for a positive connection. This avoids a projecting unevenness on the surface of the electrode 11 by the slipping of the absorption unit 30 occurs.

To quickly lose moisture in the absorption unit 30 to prevent and the moistening effect of the absorption unit 30 on the electrode 11 exercise is the receiving bag 34 with a water-permeable upper layer 341 and a waterproof underlayer 342 provided with the waterproof underlayer 342 with the soil layer 20 comes into contact while the water-permeable upper layer 341 the electrode 11 touched. The non-slip sections 31 are at the bottom surface of the waterproof underlayer 342 educated. The water-permeable upper class 341 is designed as a fabric, paper or semipermeable resin membrane. By this measure, the moisture can only through the water-permeable upper layer 341 and the electrode 11 pass through, which at the same time the storage of water in the receiving bag 34 favored.

The water-storing insert 33 can be made of cotton paper, cotton fabric, silica gel, absorbent foam material, Zottenhaarmasse such. As pulp, sodium polyacrylate, other equivalent polymer such. Acrylic acid, propenoic acid or other equivalent superabsorbent polymer. In addition, the water-storing insert 33 variously such. B. spherical.

According to the invention, the absorption unit 30 formed directly on the upper side [see 8th ], so that it swells after the water absorption in even more projecting position to the electrode 11 to bring into a prominent position. According to 11 has the absorption unit 30 several water-storing deposits 33 in cooperation with a receiving bag 34 on. These water-storing deposits 33 swell after water intake so that several raised sections 32 on the surface of the receiving bag 34 are formed and attached to the corresponding electrode 11 support. This ensures a complete concern in adaptation to the curve of the body surface.

In summary, the arrangement according to the invention for detecting physiological signals consists of at least one electrode 11 , a soil layer 20 and at least one absorption unit 30 , With this configuration, the absorbing and moisturizing effect can be achieved while preventing rapid moisture loss. In addition, the electrode can 11 be moistened in a favorable manner. The absorption unit 30 can swell after the absorption of water or formed directly in a projecting shape, so that a firm contact with the human body surface is ensured. In this way, the detection of physiological signals of the person to be measured can be facilitated, which increases the ease of use. There is also a border section 40 additionally provided, which fulfills the positioning effect, increases the wearing comfort and improves the aesthetic appearance. Furthermore, the deterioration of the transmission of the electric current can be minimized. At the same time noise is reduced.

The foregoing description illustrates the embodiments of the invention and is not intended to limit the claims. All equivalent changes and modifications that may be made by those skilled in the art in accordance with the description and drawings of the invention are within the scope of the present invention.

LIST OF REFERENCE NUMBERS

1

Arrangement for detecting physiological signals

10

top layer

11

electrode

111

mesh

112

senior area

12

connecting web

13

extension wire

20

soil layer

21

non-slip counterpart

22

waterproof upper layer

23

lower fabric layer

30

absorbing unit

31

non-slip section

32

raised section

33

water-storing insert

34

collection bag

341

water-permeable upper layer

342

waterproof underlayer

40

edge section

41

lower side

42

upper side

50

clothing

60

sewing thread

S2

first recording room

S2

second recording room

Claims (20)

Arrangement for detecting physiological signals, comprising: a soil layer ( 20 ); at least one electrode ( 11 ) at the upper surface of the soil layer ( 20 ), wherein between the electrode ( 11 ) and the soil layer ( 20 ) creates a first receiving space (S1); and at least one absorption unit ( 30 ), which is located in the first receiving space (S1), wherein the absorption unit ( 30 ) on the top side with the electrode ( 11 ) and underside with the soil layer ( 20 ) comes into contact. Arrangement according to claim 1, characterized in that the electrode ( 11 ) is produced by weaving non-conductive fiber yarns and conductive fiber yarns, wherein the electrode ( 11 ) a conductive area ( 112 ) connected to the conductive fiber yarns of the electrode ( 11 ) is woven. Arrangement according to claim 1, characterized in that the electrode ( 11 ) is completely made by weaving conductive fiber yarns. Arrangement according to claim 1, characterized in that the absorption unit ( 30 ) on the bottom side with a plurality of spaced, non-slip sections ( 31 ) and the soil layer ( 20 ) on the upper side with a plurality of spaced non-slip counterparts (US Pat. 21 ), wherein the non-slip sections ( 31 ) and the non-slip counterparts ( 21 ) are adapted to each other and can interlock for positive connection. Arrangement according to claim 1, characterized in that the material for the absorption unit ( 30 ) is selected from a group comprising cotton paper, cotton fabric, silica gel, absorbent foam material. Arrangement according to claim 1, characterized in that the absorption unit ( 30 ) is made of sodium polyacrylate. Arrangement according to claim 1, characterized in that the absorption unit ( 30 ) is designed as an elastomer. Arrangement according to claim 1, characterized in that the bottom layer ( 20 ) is made of fabric material. Arrangement according to claim 1, characterized in that the bottom layer ( 20 ) is made of waterproof material. Arrangement according to claim 1, characterized in that the bottom layer ( 20 ) a lower fabric layer ( 23 ) and a watertight upper layer ( 22 ), wherein the waterproof upper layer ( 22 ) with the absorption unit ( 30 ) comes into contact. Arrangement according to claim 1, characterized in that - the electrodes ( 11 ) spaced apart on the upper surface of the soil layer ( 20 ) are arranged, wherein between the electrodes ( 11 ) and the soil layer ( 20 ) is formed in each case a first receiving space (S1), and wherein the absorption units ( 30 ) are positioned in the respective first receiving spaces (S1), and wherein the absorption unit ( 30 ) on the top side with the respective electrodes ( 11 ) and underside with the soil layer ( 20 ) come into contact; and - that a connecting bridge ( 12 ) between each two adjacent electrodes ( 11 ) is provided, wherein between the connecting web ( 12 ) and the soil layer ( 20 ) at least one second receiving space (S2) is formed, and wherein these electrodes ( 11 ) and the connecting bridge ( 12 ) to one with the shape of the bottom layer ( 20 ) corresponding upper class ( 10 ) are joined together. Arrangement according to claim 11, further comprising an edge portion ( 40 ) whose lower side ( 41 ) with the edge of the lower surface of the soil layer ( 20 ) and its upper side ( 42 ) with the edge of the upper surface of the upper layer ( 10 ), wherein the edge of the upper surface of the upper layer ( 10 ) to the edge of the lower surface of the soil layer ( 20 ) is aligned. Arrangement according to claim 11, characterized in that each electrode ( 11 ) with at least one extension wire ( 13 ), wherein one end of the extension wires ( 13 ) in the respective electrodes ( 11 ) and is electrically connected thereto, while the other end of the extension wires ( 13 ) from one side of the respective electrodes ( 11 ) stands out. Arrangement according to claim 1, further comprising an edge portion ( 40 ) whose lower side ( 41 ) with the edge of the lower surface of the soil layer ( 20 ) and its upper side ( 42 ) with the edge of the upper surface of the upper layer ( 10 ), wherein the edge of the upper surface of the electrode ( 11 ) to the edge of the lower surface of the soil layer ( 20 ) is aligned. Arrangement according to claim 1, characterized in that the absorption unit ( 30 ) further comprising at least one water-storing insert ( 33 ) and a water-storing deposit ( 33 ) enveloping receiving bag ( 34 ), the receiving bag ( 34 ) on the bottom side with a plurality of non-slip sections ( 31 ), while the bottom layer ( 20 ) on the upper side with a plurality of non-slip counterparts ( 21 ), and wherein the non-slip mating sections ( 21 ) and the non-slip sections ( 31 ) are adapted to each other so that they interlock for positive connection. Arrangement according to claim 15, characterized in that the material for the water-storing insert ( 33 ) is selected from a group comprising cotton paper, cotton fabric, silica gel, absorbent foam material. Arrangement according to claim 15, characterized in that the water-storing insert ( 33 ) is made of sodium polyacrylate. Arrangement according to claim 15, characterized in that the receiving bag ( 34 ) with a water-permeable upper layer ( 341 ) and a waterproof underlayer ( 342 ), the waterproof underlayer ( 342 ) with the soil layer ( 20 ), while the water-permeable upper layer ( 341 ) the electrode ( 11 ), and wherein the non-slip sections ( 31 ) at the bottom surface of the waterproof underlayer ( 342 ) are formed. Arrangement according to claim 18, characterized in that the water-permeable upper layer ( 341 ) is selected from the group consisting of fabric, paper layer and semipermeable resin membrane. Arrangement according to claim 1, characterized in that the absorption unit ( 30 ) is formed in a projecting shape.

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