ES1115655U - Cloth for the acquisition of articulation movement data (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

1. Garment (P) for the acquisition of joint movement data, by means of extensiometric sensors, characterized by the fact that it comprises at least two sensors for a joint, said sensors having a response speed when shrinking less than the response speed by lengthening. 2. Garment (P) according to claim 1, comprising at least one textile arm for the acquisition of movement data of a person, in which: - a first sensor (1) is arranged in the part that goes from the shoulder blade to the back of shoulder; - a second sensor (2) is arranged in the part that goes from the pectoral to the anterior part of the shoulder; - a third sensor (3) is arranged on the back of the hand; - a fourth sensor (4) is arranged in the palm of the hand; - a fifth sensor (5) is arranged at the back of the elbow; - sixth (6) and seventh (7) sensors are arranged crossed or not in the posterior distal part of the forearm, forming at least an angle of 30 ° between them. - an eighth sensor (8) is arranged vertically under the armpit from the trunk. - Ninth (9) and tenth (10) sensors start at any point of the elbow and extend crossed or not, to end at the shoulder forming at least a 30º angle between them. Garment according to any of the preceding claims, which is a ready-made garment, some of the strain gauges (1, 2, 3, 4, 5, 6, 7, 8, 9 and 10) being printed on the fabric. Garment according to any of the preceding claims, in which the sensors are made of a silicone elastomer. Garment according to any of the preceding claims, in which the sensors and the fabric have a similar Young's modulus. Garment according to any of the preceding claims, in which the connection cables are arranged in a tunnel created by the seams. Garment according to any one of Claims 2 to 6, comprising at the elbow a ring fixing element attached to the inner surface of the garment, the fifth sensor (5) being fixed on the opposite side to said element, so that its fixation in the correct position in use is guaranteed. 8. Garment according to claim 7, wherein the ring is silicone. Garment according to any of claims 2 to 8, comprising a thumb cover attached, so that the fixing in the correct position of the third (3) and fourth (4) sensors is guaranteed. Garment according to any of claims 2 to 9, which comprises a zipper in the front part of the forearm to provide a better fit of the sleeve and to guarantee adequate tension of the sixth (6) and seventh (7) sensors.

Description

GARMENT FOR THE ACQUISITION OF JOINT MOVEMENT DATA

The present invention relates to a garment for the acquisition of joint movement data by means of extensiometric sensors, which allows the movements made by the user of the garment to be recorded with high precision, especially with a view to its rehabilitation.

10 Background of the invention

Garments for acquiring joint movement data are known, using extensiometric sensors. The disadvantage of the state-of-the-art garments, such as that described in US 2100010379A1 of De

15 Rossi et Al, is that they do not provide reliable enough information on joint movement.

The state of the art sensors are located along all the joints until reaching the control electronics, which makes it difficult to separate the movements of each

20 joint without completely eliminating the influence of the other joints.

Description of the invention

To overcome the drawbacks of the prior art, the present invention proposes a

25 garment for the acquisition of joint movement data, by means of extensiometric sensors, which is characterized by the fact that it comprises at least two sensors for a joint, said sensors having a shrinking response speed less than the response speed to lengthen

By means of the present invention the sensors allow to look at a single joint without being disturbed by the surrounding sensors by means of fixations in strategic areas.

The manufacture of the garment is industrializable and with a low material consumption since the sensors are located only in strategic areas.

By means of the arrangement of the sensors a more linear capture of the measurement of the rotation and torsion angles is achieved, which facilitates the calibration of the system. The erratic behavior of the elastomeric material is also corrected by the arrangement of the sensors. .

5 According to various optional aspects of the present invention, which may be combined whenever possible:

The garment comprises at least one textile arm for the acquisition of movement data of a person, in which:

10 -a first sensor is arranged in the part that goes from the shoulder blade to the back of the shoulder; -a second sensor is arranged in the part that goes from the pectoral to the anterior part of the shoulder;

15 -a third sensor is arranged on the back of the hand; -a fourth sensor is arranged in the palm of the hand; -a fifth sensor is arranged on the back of the elbow; -a sixth and seventh sensors are arranged crossed or not in the distal part

posterior of the forearm forming at least an angle of 30� between them. 20 -a eighth sensor is arranged vertically under the armpit from the trunk

-

Some ninth and tenth sensors have their beginning at any point of the elbow and extend crossed or not, to end at the shoulder forming at least an angle of 30�.

25 - the garment is a ready-made garment, being one of the extensometric sensors printed on the fabric.

-

 The sensors are made of a silicone elastomer.

30 - the sensors and tissue have a similar Young's modulus.

-

 The connection cables are arranged in a tunnel created by the seams.

-

 The garment comprises at the elbow a ring fixing element attached to the inner surface 35 of the garment, the fifth sensor being fixed on the opposite side to said element, so that its fixation in the correct position in use is guaranteed.

-

 The ring is silicone.

5 - the garment comprises a thumb cover attached, so that the fixation in the correct position of the third and fourth sensors is guaranteed.

Finally, the garment comprises a zipper on the front part of the forearm to provide greater adjustment of the sleeve and ensure adequate tension of the sixth and seventh sensors.

Brief description of the figures

To better understand how much has been exposed, some drawings are attached in which, schematically and only by way of non-limiting example, a practical case of realization is represented.

Figure 1 shows an asymmetrical behavior of an elongation resistive sensor, in this case very slow response when shrinking.

Figure 2 shows a front perspective view of a preferred gauge arrangement according to the invention.

Figure 3 shows a rear perspective view of a preferred 25 gauge arrangement according to the invention.

Figure 4 shows the cylindrical projection on the garment of the sensor path.

Figure 5 shows the abduction of a joint with 2 degrees of freedom 45� with respect to its axis, and location of the 3 sensors.

Figure 6 shows the abduction of a joint with 2 degrees of freedom -45� with respect to its axis, and location of the 3 sensors.

35 Figure 7 shows the flexion of a joint with 2 degrees of freedom 45� with respect to its axis, and location of the 3 sensors.

Figure 8 shows the abduction of a joint with 1 degree of freedom 45� with respect to its axis, and location of the 2 sensors.

5 Figures 9 and 10 show the special arrangement provided on the elbow to ensure correct positioning and measurements.

Figure 11 shows projected paths of a rotation joint, with two sensors and with rotations from -270� to 270�.

10 Figure 12 shows Projected paths of a rotation joint, with two sensors and with rotations from -270� to 270� cross version.

Figure 13 shows Paths for 3 sensors of a rotation joint with a movement of the B-axis from -360� to + 360�.

Description of a preferred embodiment

The invention relates to a garment P for the acquisition of movement data of

20 joints, by means of extensiometric sensors, characterized by the fact that it comprises at least two sensors for a joint, said sensors having a shrink response speed less than the elongation response speed.

The mentioned behavior can be represented by the graph of Figure 1, in which it is shown how the inertial behavior in the elongation is different from the

25 inertial behavior in contraction. A part of that inertia is determined by the speed of stretching.

The two basic provisions object of the present invention are detailed below.

30 a) Rotation joint

As shown in Figure 4, the garment that is located on the axis of the joint should be fixed at both ends A and B, so that it moves in solidarity with the rotation of the joint and therefore also twists the fabric and the sensors For this kind of

35 articulation, the sensor path should be adjusted as much as possible to a

cylindrical projection of a path or segment thereof.

The path to follow in the cylindrical projection must comply with the fact that the cylindrical paths to project of each sensor must be at least two. And each of them should follow 5 the shortest line on the cylinder of the joint if possible, and between them they must comply: (αi- βi) - (αi-1-βi-1) = 360 / N (where the i meets N≥i> 1)

10 Being αi, the angle of displacement of the start point of the sensor path (i) relative to the A axis of each path, and βi the displacement angle of the end of the path relative to the B axis, should be as close as possible to the start and end of the paths for the N sensors (minimum 2).

15 In addition, to act in a complementary manner, for the intermediate state of the rotation (if the rotation goes from + θ to –θ for the intermediate state rot = 0), you must try to comply to the maximum that they are compensated arithmetically:

20 As an example of such articulation, the rotation of the wrist can be cited. The end A would be the elbow, and the end B the wrist, which rotates on the same axis (forearm). The rotation of the shoulder and neck and human ankles would also be included in this type.

25 b) Joint flexion / extension and / or adduction / abduction or with one or two degrees of freedom.

This type of joint is shown in Figures 5 to 8. In this case, the fixation can be located anywhere in the cylinder although the best place is the A and B ends.

30 ends of the projection cylinder can extend along the joint as long as at least the part of the torsing cylinder is covered.

It will also be preferable that the sensor path is adjusted as much as possible to a cylindrical projection of a path, or segment thereof, that meets the

35 following conditions: The cylindrical paths to be projected from each sensor must be at least three for two degrees of freedom and two for a single degree of freedom, although in the case of a single degree of freedom, if it is only flexion or extension only one could be located although the benefits

5 would be lower.

Each of them should follow the shortest line on the joint cylinder if possible, and at least one of its sensors must start and end in one of the turning planes and also must comply with:

(αi - αi-1) = 360 / N (where the i meets N≥i> 1) (βi - βi-1) = 360 / N (where the i meets N≥i> 1)

As examples of articulation of this type, with 2 degrees of freedom flexion / extension and

15 abduction / adduction, the neck, shoulder and upper leg can be cited. With a single degree of freedom, elbow flexion-extension, wrists and ankles. Example of full garment

In Figures 2 and 3, a preferred arrangement of sensors in a garment is illustrated.

Specifically, in the garment at least one textile arm is provided for the acquisition of movement data of a person, in which:

-

a first sensor 1 is disposed in the part that goes from the shoulder blade to the back part of the shoulder; -a second sensor 2 is arranged in the part that goes from the pectoral to the part

anterior shoulder; -a third sensor 3 is arranged on the back of the hand; -a fourth sensor 4 is arranged in the palm of the hand;

30 - a fifth sensor 5 is arranged on the back of the elbow; -a sixth and seventh 7 sensors are arranged crossed or not in the distal part

posterior of the forearm forming at least an angle of 30� between them. -a eighth sensor 8 is arranged vertically under the armpit from the trunk -A ninth 9th and 10th sensors have their start at any point of the elbow and

35 are crossed or not, to end at the shoulder forming at least an angle of 30� between them.

As shown in Figures 9 and 10, the garment comprises at the elbow a ring fixing element, preferably of silicone, attached to the inner surface of the garment, the fifth sensor 5 being fixed on the opposite side to said element so that it

5 guarantees its fixation in the correct position in use.

One is also provided that has a thumb sleeve attached, so that it is guaranteed

fixing in the correct position of the third and fourth sensors 4.

10 Finally, a zipper is provided on the front part of the forearm to provide greater adjustment of the sleeve and ensure adequate tension of the sixth and seventh sensors 7.

Although reference has been made to a specific embodiment of the invention, it is

It is evident to a person skilled in the art that the described garment is susceptible to numerous variations and modifications, and that all the mentioned details can be replaced by other technically equivalent ones, without departing from the scope of protection defined by the appended claims.

Claims (7)

1. Garment (P) for the acquisition of joint movement data, using extensiometric sensors, characterized by the fact that it comprises at least two 5 sensors for a joint, said sensors having a shrink response speed less than the response speed when lengthened. 2. Garment (P) according to claim 1 comprising at least one textile arm for the acquisition of movement data of a person, wherein: 10 -a first sensor (1) is arranged in the part that goes from the shoulder blade to the back of the shoulder; -a second sensor (2) is arranged in the part that goes from the pectoral to the anterior part of the shoulder; 15 -a third sensor (3) is arranged on the back of the hand; -a fourth sensor (4) is arranged in the palm of the hand; -a fifth sensor (5) is arranged on the back of the elbow; -one sixth (6) and seventh (7) sensors are arranged crossed or not in the part posterior distal forearm forming at least an angle of 30� between them. 20 -a eighth sensor (8) is arranged vertically under the armpit from the trunk

-

Some ninth (9) and tenth (10) sensors have their beginning at any point of the elbow and extend crossed or not, to end at the shoulder forming at least an angle of 30� between them.

3. A garment according to any of the preceding claims, which is a garment made, with one of the extensometric sensors (1, 2, 3, 4, 5, 6, 7, 8, 9 and 10) printed on the fabric . 4. Garment according to any of the preceding claims, wherein the sensors are made of a silicone elastomer. 5. Garment according to any of the preceding claims, wherein the sensors and the fabric have a similar Young's modulus. 6. A garment according to any of the preceding claims, wherein the connecting cables are arranged in a tunnel created by the seams. 7. Garment according to any of claims 2 to 6, comprising at the elbow a ring fastener attached to the inner surface of the garment, the fifth being 5 sensor (5) fixed in the opposite part to said element, so that its fixation in the correct position in use is guaranteed. 8. Garment according to claim 7, wherein the ring is made of silicone. 10. A garment according to any of claims 2 to 8, which comprises a thumb sleeve attached, so that the third (3) and fourth (4) sensors are secured in the correct position. 10. Garment according to any of claims 2 to 9, comprising a zipper 15 in the front part of the forearm to provide greater adjustment of the sleeve and ensure adequate tension of the sixth (6) and seventh (7) sensors.  Time (s) Fig. 1 Fig 2 Fig. 3 Fig. 4 Fig. 5 Fig. 7 Fig. 8 Fig. 9 Fig. 10 Fig. 11 Fig. 12 Fig. 13