EP3542128A1

EP3542128A1 - Device for measuring the circumference of an object

Info

Publication number: EP3542128A1
Application number: EP17803864.2A
Authority: EP
Inventors: Joseph HARFOUCHE
Original assignee: Just A New Health
Current assignee: Just A New Health
Priority date: 2016-11-15
Filing date: 2017-11-14
Publication date: 2019-09-25
Also published as: BE1024367B1; US20190365284A1; JP2020513286A; IL266591A; US11147475B2; BR112019009514A2; CA3043505A1; AU2017359962A1; RU2019114211A; WO2018091462A1

Abstract

The present invention relates to a device for measuring an object, comprising a winder of a measurement element arranged to form a loop about said object, which has at least one wall and an exit opening arranged to allow the exit of at least one unwound portion of said measurement element, which is defined between said exit opening and a distal end of said measurement element, which is provided with a connection element that abuts against said exit opening, and a connection means being located at a distance d from said exit opening, characterised in that said connection means is located on said at least one wall, is adjacent to said exit opening, is presented in the form of a protrusion which extends towards said distal end, and is arranged to receive said connection element in a stationary manner.

Description

Device for measuring the circumference of an object

The present invention relates to a device for measuring the circumference of an object, in particular the circumference of a bodily member, comprising:

a reel of a flexible measuring element arranged to be affixed and to form a loop around said object, in particular around said body member, when said measuring element is in measurement position, said reel having at least one wall and an orifice; output circuit arranged to allow an output of at least one unrolled portion of said measuring element, said at least one unrolled portion of said measuring element being defined between said output port and a distal end of said measuring element, said distal end of said element measuring device being provided with a connection element which abuts against said outlet orifice, when said measuring element is in the rest position and,

means for connecting said connection element of said distal end of said measuring element, said connection means being situated at a distance d from said output orifice, said distance d defined between said output orifice and said connection means being less than or equal to 4 cm, preferably less than or equal to 3 cm, preferably less than or equal to 2 cm, more preferably less than or equal to 1 cm, more preferably equal to zero,

Such a device is used in particular to measure the circumference of the arms, thighs and legs of a patient, the measuring element typically having graduations. To measure the circumference of a bodily member, it is first necessary to unroll at least a part of the measuring element from the reel and then to place this part unrolled around the body member, this before or after the distal end of the measuring element unrolled is connected to a connection means. Once this connection is established, the operator must then ensure that the unwound part of the measuring element follows the contours of the body member and a reading of the limb circumference can then be performed using the graduations.

Note that devices of the state of the art generally have a curvature facilitating the installation of the device against a body member to marry the shape. However, each device has its own curvature and is therefore more or less adapted to a given body limb of specific diameter. But, once the curvature of the member is different and in particular less important than that of the measuring device according to the state of the art, measurement errors of the order of a few centimeters and a significant loss of accuracy are noted.

Circumference measurements are also currently carried out with simple measures corresponding to tape measures. However, the use of a tape measure is particularly restrictive since the operator must hold it in place so that it overlaps at least in part to determine a circumference and must take care not to exert traction too important on the tape measure, this without moving so as not to distort the measure.

A measurement of the circumference of bodily limbs such as an arm or a leg is particularly recommended as part of the assessment and monitoring of physiotherapy treatment, for example for the treatment of lymphoedema, that is to say, swelling. part of the body following an accumulation of lymphatic fluid in the interstitial tissues. These swellings mainly involve the upper and lower limbs such as the fingers, toes, arms, feet, legs, thighs and hands but can also occur in other parts of the body such as the neck, the abdomen, the back or the breasts. To determine the extent to which lymphoedema

(primary or secondary) must be treated, it is necessary to follow the evolution. As an example, if we consider upper limb lymphedema, the clinical practice guideline for the management and treatment of breast cancer (Clinical Practice Guidelines for the Management and Treatment of Breast Cancer Canadian Medical Association Journal) recommends measuring gill circumference at four points: metacarpal-phalangeal joints, wrists, 10 cm downstream and 15 cm upstream of lateral epicondyles (elbow). It is considered that a difference of more than 2 cm from the circumference, between two measurements at one of these four measurement points, justifies the treatment of lymphoedema. A difference of more than 2 cm from the circumference between a body limb (eg the right arm) with lymphoedema and a corresponding body limb (eg left arm) not showing lymphoedema also indicates that it is appropriate to proceed a treatment of this swelling.

It is therefore necessary to have a measuring device or instrument that makes it possible to measure the circumference of body limbs punctually and at the same place in order to be able to decide whether lymphoedema treatment is applicable or not. no. It is particularly important to have a measuring tool that allows an accurate and reliable measurement since the margin of error must be small and only of the order of a few millimeters, preferably of the order of less than 5 millimeters or more. preferably of the order of less than 2 millimeters.

A measurement of the circumference of bodily limbs is also indicated to note a decrease in the volume of the skeletal muscles and to follow the evolution. Such a decrease in muscle volume (or loss of muscle mass) may for example be due to amyotrophy (atrophy and / or disappearance of the striated muscle fiber), sarcopenia (geriatric syndrome) or myopathies. (neuromuscular disease). These pathologies require follow-up and in particular a physiotherapy treatment in which an accurate measurement of the circumference of the bodily member comprising the muscle in question is essential. Here again, the evolution of the bodily circumference can be followed by comparing two measurements taken at the same place after a predetermined period of time or comparing the circumferences of a "healthy" bodily limb and a bodily limb. corresponding with a decrease in muscle volume (loss of muscle mass).

A measurement of the circumference of bodily limbs is also indicated to note a decrease in volume during follow-up of a diet and during anti-cellulite treatments in which a refinement of the limb is expected.

A measurement of the circumference of bodily limbs is also indicated to note a change in volume during a workout as part of a bodybuilding program where an increase in muscle volume is expected or expected.

Finally, a measurement of the circumference of bodily limbs is also indicated to follow the growth of infants, which implies measurements of the circumference of very fine and very small limbs where no measurement error can be tolerated.

It will be understood that any other condition or condition causing a change in circumference at a bodily limb is within the scope of the present invention.

Unfortunately, with such a measuring device described above and currently used, it appears that the measurements made are accurate and reliable only for certain objects / corporal members of average circumferences, these measures are on the other hand totally biased when the objects / corporal members have a circumference too small (eg fingers, toes, wrists and the ankles) or, conversely, too large (eg the abdomen). By way of example, this totally biased measurement problem is encountered for the measurement of the circumference of very fine bodily limbs in infants or for measurement of the circumference of the fingers.

Another problem encountered with such a device currently used is that the shape and curvature of the body objects / limbs have a direct impact on the accuracy of the measurements. For example, if a correct and accurate measurement can be taken at the wrist of an adult when the measuring device is placed flat just behind the head of the ulna (like a watch), it will not be the case if this same measuring device is shifted 90 ° to the right or to the left. In fact, as soon as the object / body member moves away from a cylindrical shape (which is the case with most bodily members), such a measurement device according to the state of the art which nevertheless has a curvature defined between the outlet orifice and the connection means, is completely inaccurate and the measurements are not reproducible. This is all the more marked as the bodily member considered moves away from the curvature of the measuring element.

Moreover, since one operator is not the other, taking measurements with such a measuring device is not reproducible: it suffices, as in the example of the wrist mentioned above, for the operator to position the device in one way rather than another so that totally different measures are obtained.

From all this it follows that a device currently used is not versatile since it does not allow to obtain accurate and reproducible measurements of circumferences for all types of objects / body members inevitably each having a particular circumference and curvature . In addition, as indicated above, major problems of reproducibility of the measurements made arise, especially when different operators perform circumferential measurements for the same object / body member.

EP 1 439 370 proposes a measuring device in which the outlet orifice is provided with a connection means which accommodates the end of the measuring element when it surrounds a member to be measured.

Unfortunately, such a device is unreliable and impractical in that the patient's skin can remain blocked at the connection means at the inlet of the outlet port. This is particularly restrictive for the user. The accuracy of the measurement is also affected.

The object of the invention is to overcome the disadvantages of the state of the art by providing a device for measuring the circumference of an object, in particular the circumference of a body limb, which can ensure rapid, reliable measurements. accurate and reproducible for any type of object / body member, the latter has a small circumference (wrists, ankles, fingers, ...) or a large circumference (abdomen, ...) or a type curvature / shape (eg due to the presence of a protuberance such as at the wrist or ankle) rather than another.

Furthermore, the object of the invention is also to provide a measuring device which has a reasonable size, which is manageable, light and compact, for example to be easily stowed in the pocket of a garment, which constitutes, moreover, a a definite advantage in the medical field where health professionals, moving from rooms to bedrooms or from one room to another to see their patients, frequently put their equipment in the pockets of their work coat.

In this sense, the present invention seeks to provide a measuring device that is versatile and is not limited to particular circumferences and / or objects or members This is achieved by ensuring that reproducible and reliable measurements are possible at a given location of the object / body member, regardless of the positioning of the measuring device and whoever the operator is.

To solve this problem, it is provided according to the invention, a device for measuring the circumference of an object as indicated at the beginning, characterized in that said connecting means is located on said at least one wall of said winder, is adjacent said outlet port, is in the form of a protrusion, which extends towards said distal end of said measuring element, and is arranged to fixably receive said connecting member, when said measuring element is in measuring position.

In the context of the present invention, it has unexpectedly been determined that the presence of the connection means makes it possible to guarantee accuracy and ease of measurement, regardless of the type or shape of the object whose circumference must be measured. Thus, the device according to the invention is resistant, durable, and makes it possible to measure the circumference of an object / body member, quickly, accurately, reproducibly and reliably, that this object / body member has curvatures and / or protuberances or not, this regardless of the operator taking the measurement of the circumference.

Advantageously, said distance d defined between said outlet orifice and said connecting means is equal to 5 mm, preferably equal to 4 mm, preferably equal to 3 mm, more preferably equal to 2 mm, preferably 1 mm.

According to a preferred embodiment, the distance d is zero, which means that the connection means is attached and is therefore in contact with the exit orifice of the winder. Such relative positioning between the connecting means and the exit orifice of the winder makes it all the more possible to avoid any error and any bias during measuring a circumference of an object / bodily member. For example, the outlet orifice being delimited by four walls, it is provided according to the invention that the connection means is placed in direct contact with one of these walls so that the distance d is equal to zero or at least only of the order of a few millimeters.

By the terms "flexible", "flexible measuring element" or "measuring element formed in a flexible material" is meant, within the meaning of the present invention, a measuring element whose flexibility allows it to follow / surround , closely and by contact, the surface of the object or bodily member whose circumference is to be measured.

Preferably, according to the invention, said loop formed around said object, in particular around said body member, is inscribed in a single plane passing through a median longitudinal axis defined along said measuring element. Such positioning of the loop and therefore of the unwound part of the measuring element according to the invention makes it possible to ensure optimum precision of the measurement of the circumference. Indeed, any bias is minimized when the loop is positioned in a single plane.

Advantageously, according to the invention, said winder of said device is a spring winder optionally provided with a locking system and / or a return system of said measuring element. When setting up a measuring device according to the invention, the locking system advantageously allows, after unwinding of at least a part of the measuring element, to block the latter in order to facilitate the installation of the measuring element around the object / body member.

Moreover, following the introduction of the measuring element around the object / body member and following the connection of the distal portion of the measuring element to the connection means according to the invention, provision is made a reminder system for the measuring element allows automatic and adequate placement of the measuring element around the object / bodily member whose circumference is to be measured. Indeed, since the unrolled portion of the measuring element is generally longer than the circumference to be actually measured, this for reasons of ease of implementation of the measuring device, it is then necessary to ensure that the element The measurement device fits perfectly to the contour of the object / body member, this being able to be ensured according to the invention by a return system (automatic) of the measuring element, in particular of the unwound part of the measuring element. Of course, any type of suitable retractor is within the scope of the present invention.

Advantageously, said measuring device according to the invention comprises at least one voltage sensor housed in said winder for detecting that said measuring element is stretched in order to be able to measure the voltage, said voltage being preferably linked to a weight of between 5 and 3000 g, preferably between 15 and 1500 g, more preferably between 15 and 1000 g, advantageously between 15 and 500 g, more advantageously between 15 and 150 g and / or further comprising a motor housed in said reel in order to apply a sufficient voltage for a weight included in one of the abovementioned ranges.

Preferably, according to the invention, said measuring element of said device has or not graduations. According to the present invention, according to a first embodiment, the measurement of the circumference is measured visually by means of graduations present on the measuring element. According to a second embodiment, this reading can be performed at a frame digitally displaying the measured circumference value, the graduations are therefore not essential in this case.

Preferably, according to the invention, said outlet orifice of said winder has a section similar to the section of said measuring element. In this way, the exit orifice really guides the measuring element so that the latter is correctly positioned around the object / body member whose circumference is measured. In particular, the fact that these two sections are similar makes it possible for the loop formed around the object / body member to be better inscribed in a single plane passing through a median longitudinal axis defined on the measuring element. Within the meaning of the invention, the smaller the width of the measuring element, the more reliable, accurate and reproducible the measurement, especially by minimizing the yawning of the measuring element observed at the anterior surface. of the forearm, at the level of the leg or at the level of the calf.

Advantageously, according to the invention, said measuring element of said device is formed of a flexible material such as for example flexible plastic or paper having sufficient tensile strength.

Advantageously, according to the invention, said connection means of said device is connected to a movable element arranged to allow a displacement of said connection means along said distance d defined between said output port and said connection means. It is therefore possible, according to the invention, to vary the position of the connection means, which can be advantageous for the realization of certain measurements. Being able to move the connecting means makes it possible to adapt to the specific curvature of a given bodily member, which the device according to the invention itself has a curvature or not.

Preferably, said device according to the invention has a window for reading a circumference of an object, in particular a circumference of a bodily member. Optionally, the reading window is associated with a magnifying glass to allow easier reading of the graduations. Preferably, according to the invention, said distal end of said measuring element of said device provided with a connection element cooperates with said connection means so as to ensure a connection between said connection means and said distal end of said measuring element. Such a connection can be made via a male-female system allowing, for example, an engagement of the connection element present at the distal portion of the measuring element in the connection means. It is obvious that any other type of system or device capable of providing such a connection is an integral part of the present invention, such as for example fixing with a magnet or fixing with Velcro®.

Advantageously, according to the invention, said measuring element of said device has an attachment zone arranged to be connected by means of a slide to a second measuring element having a longitudinal direction and defining a slide intended to be affixed to the along an object, in particular along a body member, said slide having a slide passage orifice defined by four walls, at least two of which are parallel to one another and form a guide wall said slider so as to inscribe said measuring element in a plane perpendicular to said longitudinal direction. For example, a measuring device according to the invention may be part of a measuring device such as that described in WO2014 / 191513. In particular, a measuring device according to the invention can advantageously replace a measuring element such as the one referred to as "second measuring element graduated" in the document WO2014 / 191513.

Preferably, the measuring device according to the invention further comprises: an electronic measurement module capable of determining a measurement of circumference from a running of said flexible measuring element; and

display means for displaying a circumference measurement determined by said electronic module.

This embodiment has the advantage of being able to make a measurement quickly: the display means allow the operator to directly perform a reading of a circumference measurement. The use of an electronic module capable of determining a measurement of circumference also allows a better reproducibility of the measurement of the circumference of an object, in particular of the circumference of a bodily member, since the variations due to the intervention of an operator are severely limited by the automation / digitization of the measuring device. Reading the measurement is also easier because the value of the circumference is displayed through the display means.

Preferably, the measuring device according to the invention further comprises communication means for communicating to another electronic device a measurement of circumference determined by said electronic module. This communication of the measuring device with another electronic device through the communication means advantageously avoids, for example, the retranscription by the person making the circumference measurement of the measurement displayed by the display means.

Preferably, the measuring device according to the invention further comprises control means for controlling a transmission of a circumference determined by said electronic module by the communication means. The advantage of having control means included in the measuring device is that the operator can determine when he wants the measurement of circumference to be communicated, preferably to the display means. and preferably to the communication means so that the measurement is communicated to another electronic device.

Advantageously, the device according to the invention comprises said voltage sensor and / or a motor _» in which a voltage force can be programmed and a signal warned the user when this voltage force is reached. The latter will sufficiently tighten the measuring element around the body object / limb whose circumference is to be measured or examined. This is particularly advantageous for practitioners such as banders who should be able to apply sufficient tension to perform a measurement or a reliable, accurate and reproducible examination.

Said motor can preferably be replaced by a manometer in which the voltage force can be programmed so that when the preset pressure is reached, the device starts ringing.

An engine will be preferred to support a weight of between 5 and 80 g, preferably between 5 and 60 g.

An engine will be preferred to support a weight greater than 80 g and less than 5 kg.

Other embodiments of a device according to the invention are indicated in the appended claims.

The present invention also relates to an assembly comprising the measuring device according to the invention and an apparatus able to communicate with said communication means of said measuring device. The advantage of this set is to be able to have, on a device able to communicate with said means of communication, the measurement of circumference without having to retranscribe the measurement and thus to avoid reading and input errors.

Preferably, the assembly according to the invention is characterized in that: said apparatus comprises a memory comprising data making it possible to define a position on said thimble, in that

said apparatus is able to communicate with said communication means of said measuring device for transmitting said data making it possible to define a position on the necklace, and in that

said display means are able to display said data to indicate to a user one or more positions on the necklace.

The advantage of this embodiment is that the measuring device, by means of the display means, makes it possible to indicate to the operator taking the measurement the location at which he must carry out the measurement. This allows a faster measurement. This also makes it possible to carry out several measurements on the same object or the same body member at intervals which are indicated by the apparatus to the display means of the measuring device and which are therefore transmitted to the operator. The operator thus has all the information concerning the measurement he has to perform. This allows a better rate of measurement and better reliability of the measurement. The taking of measurement and the scrolling of the place where to take the measurement are controlled thanks to the control means.

Other embodiments of an assembly according to the invention are indicated in the appended claims.

The present invention also relates to a use of a device or assembly according to the invention for measuring the circumference of an object, in particular for measuring the circumference of a bodily member.

Other forms of use of a device or an assembly according to the invention are indicated in the appended claims.

Other features, details and advantages of the invention will be described in the description given below, without limitation and with reference to the accompanying drawings. Figure 1 is a schematic representation of a first embodiment of a measuring device according to the invention.

FIG. 2 is a schematic representation corresponding to the first embodiment of a measuring device according to FIG. 1, in which the measuring element forms a loop.

Figure 3 is a schematic representation of another embodiment of a measuring device according to the invention.

Figure 4 is a schematic representation of yet another embodiment of a measuring device according to the invention.

FIG. 5 illustrates a measuring device according to the invention which is connected to a device for iteratively measuring the circumference of an object / body member, for example an iterative measuring device according to the document WO2014 / 191513.

In the figures, identical or similar elements bear the same references.

Figure 1 illustrates a device 1 for measuring the circumference of an object, in particular the circumference of a bodily member. This measuring device 1 comprises:

a winder 2 (for example a spring winder 2) arranged to wind and unwind a measuring element 3 in the form of a strip made of a flexible material, the winder also having an outlet orifice 4 arranged to allow an output of at least one unwound part P "j of the measuring element 3, this unwound part P _d being defined between the outlet orifice 4 and the distal end E _d of the element of measure 3; and

- connecting means C of the distal end E _of the measuring element 3, the connecting means C located at a distance d from the outlet 4 of the roller 2. As illustrated _"the retractor 2 has a read window 6 comprising a marker 7 where the reading of the circumference can be performed. FIG. 2 is a schematic representation corresponding to the first embodiment of a measuring device 1 according to FIG. 1, in which the measuring element 3 forms a loop B. As illustrated, when the distal end E <j of the measuring element 3 is connected to the connecting means C, the unrolled part P _< j of the measuring element 3 forms a loop B which, preferably, is inscribed in a single plane passing through a median longitudinal axis A _L M defined along the measuring element 3. This connection is made by interlocking a connection element 5 present at the distal end E _d of the measuring element 3 in the connection means C.

Furthermore, as also illustrated, the reel 2 has a reading window 6 of the circumference of the object / measured body member, where the operator can determine the value (usually in centimeters and millimeters) of the measured circumference. .

Advantageously, a measuring device 1 as illustrated in FIG. 1 and in FIG. 2 also comprises a locking system (not shown) and a return system, for example by means of a motor or a spring, ( not shown) of the measuring element 3. For example these systems can be operated by means of a button located on the reel 2.

Figure 3 illustrates another device for measuring the circumference of an object, in particular the circumference of a bodily member. This measuring device 1 according to FIG. 3 comprises the same elements as those shown in FIG. 1, but the connection means C and the outlet orifice 4 of the winder 2 are further apart from each other according to a distance d less than or equal to 4 cm, preferably less than or equal to 3 cm, preferably less than or equal to 2 cm, more preferably less than or equal to 1 cm.

FIG. 4 illustrates yet another device 1 for measuring the circumference of an object, in particular the circumference of a limb body. This measuring device 1 according to Figure 3 comprises the same elements as those shown in Figure 1 but the connecting means C is connected to a movable element E _m arranged to allow a displacement of the connection means C (as indicated by the double arrow) according to the distance d defined between said outlet orifice 4 and said connection means C, that is to say with a distance d of less than or equal to 4 cm, preferably less than or equal to 3 cm, preferably less than or equal to equal to 2 cm, more preferably less than or equal to 1 cm.

FIG. 5 illustrates a measuring device 1 according to the invention which is connected to a device for iteratively measuring the circumference of an object / body member such as, for example, the iterative measuring device according to the document WO2014 / 1915 3.

Example

In order to validate the measuring device according to the invention, several measurements were made at different places of the body of two patients. As shown in the table below, the following measuring devices were compared:

measuring device according to the invention wherein the distance d defined between the outlet orifice and said connection means is equal to 0.5 cm; measuring device of the state of the art where the distance d defined between the outlet orifice and said connecting means is equal to 5.5 cm;

- a standard scaler (measuring tape) as a reference (control).

Measurements were made at the index (above and to the side), at the wrist when the device is positioned just behind the ulna head (like a watch), at the wrist when the device is offset 90 ° from the position just behind the head of the ulna, at the ankle when the The device is positioned above the malleolus and at the ankle when the device is shifted 90 ° from the previous position.

The results obtained during these measurements are presented in Table 1 below. In this Table, the measurements relating to a first individual are indicated in "classical" character while the measurements relating to the second individual are indicated in italics.

Table 1

Wrist Finger (index) Ankle

As Offset On Offset Above Offset One 90 ° Above 90 ° 90 ° Show Malleolus Finger

Meter 14.5 cm 14.5 cm 4.8 cm 4.8 cm 21.2 cm 21.3 cm ribbon: 17.2 cm 17 cm 5.5 cm 5.5 cm 22.3 cm 22.3 cm check

Device 18.3 cm 17.2 cm ï ï cm 11 cm 22.4 cm 21.1 cm current 18 cm 19.4 cm f i cm 11 cm 23.3 cm 22.2 cm

Device 14.5 cm 14.5 cm 4.6 cm 4.6 cm 21, 1 cm 21.1 cm according to 17 cm 17 cm 5.5 cm 5.5 cm 22, 1 cm 22.2 cm the invention

As can be seen, with a device according to the invention, for each of the individuals and for each bodily member considered, only a difference of the order of 1 to 2 mm is observed with respect to the measurements made with the control (measuring tape ). This demonstrates that a device according to the invention makes it possible to perform reliable measurements regardless of the positioning of the measuring device on this body member.

On the other hand, with a device of the state of the art (current device), measurement differences of several centimeters (up to 6 cm in the case of measuring the circumference of an index) are observed with respect to control. As can be seen, more the bodily member is small / thin _" plus the measurement is biased and erroneous with a measuring device according to the state of the art but not with a device according to the invention which is therefore versatile and allows for not only reliable measurements but also reproducible.

It is understood that the present invention is in no way limited to the embodiments described above and that many modifications can be made without departing from the scope of the appended claims.

Claims

A device (1) for measuring the circumference of an object, in particular the circumference of a bodily member, comprising:

- a winder (2) of a flexible measuring element (3) arranged to be affixed and form a loop around said object, in particular around said body member, when said measuring element (3) is in measuring position, said winder (2) having at least one wall and an outlet (4) arranged to allow an outlet of at least one unrolled part of said measuring element (3), said at least one unwound part of said measuring element

(3) being defined between said outlet port (4) and a distal end of said measuring element (3), said distal end of said measuring element (3) being provided with a connecting element (5) abutting against said outlet port (4), when said measuring element (3) is in the rest position and,

connection means (C) of said connection element (5) of said distal end of said measuring element (3), said connection means (C) being located at a distance d from said output orifice, said distance defined between said outlet orifice (4) and said connection means (C) being less than or equal to 4 cm, preferably less than or equal to 3 cm, preferentially less than or equal to 2 cm, more preferably less than or equal to 1 cm , preferably zero,

characterized in that said connecting means (C) is located on said at least one wall of said winder (2), is adjacent to said outlet port (4), is in the form of a protrusion, which extends into direction of said distal end of said measuring element (3), and is arranged to fixably receive said connecting element (5), when said measuring element (3) is in measuring position.

2. Measuring device (1) according to claim 1, characterized in that said loop formed around said object _" in particular around said body member, is inscribed in a single plane passing through a median longitudinal axis defined along said element. measuring (3).

3. Measuring device according to claim 1 or 2, characterized in that said winder (2) is a spring-loaded winder (2) provided with a locking system and / or a return system of said measuring element ( 3).

4. Measuring device (1) according to any one of the preceding claims, comprising at least one voltage sensor housed in said winder to detect that said measuring element is stretched in order to be able to measure the voltage, said voltage being preferably linked at a weight of between 5 and 3000 g, preferably between 15 and 1500 g, more preferably between 15 and 1000 g, advantageously between 15 and 500 g, more advantageously between 15 and 150 g and / or further comprising a motor housed in said retractor to apply a sufficient voltage for a weight included in one of the abovementioned ranges.

5. Measuring device (1) according to any one of the preceding claims, characterized in that said measuring element (3) has or not graduations.

6. Measuring device (1) according to any one of the preceding claims, characterized in that said outlet (4) of said winder (2) has a section similar to the section of said measuring element (3).

7. Measuring device (1) according to any one of the preceding claims, characterized in that said measuring element (3) is formed of a flexible material such as for example flexible plastic or paper having sufficient tensile strength .

8. Measuring device (1) according to any one of the preceding claims, characterized in that said connecting means (C) is connected to a movable element (E _m ) arranged to allow movement of said connection means (C) according to said distance d defined between said outlet port (4) and said connection means (C).

9. Measuring device (1) according to any one of the preceding claims, characterized in that it has a window for reading a circumference of an object, in particular a circumference of a bodily member.

10. Measuring device (1) according to any one of the preceding claims, characterized in that said measuring element (3) has a fastening zone arranged to be connected via a slider to a second element measuring device (3) having a longitudinal direction and defining a slide adapted to be placed along an object, in particular along a body member, said slide having a slide opening defined by four walls, two of which minus are parallel to each other and form a guide wall of said slider so as to register said measuring element in a plane perpendicular to said longitudinal direction.

11. Measuring device (1) according to any one of the preceding claims, characterized in that it further comprises:

an electronic measurement module capable of determining a measurement of circumference from a running of said flexible measuring element (3); and

12. Measuring device (1) according to claim 11, characterized in that it further comprises communication means for communicating to another electronic device a circumference measurement determined by said electronic module.

13. Measuring device (1) according to claim 12, characterized in that it further comprises control means for controlling a transmission of a circumference determined by said electronic module by the communication means.

14. An assembly comprising the measuring device (1) according to any one of claims 1 to 13 and an apparatus adapted to communicate with said communication means of said measuring device (1).

15. The assembly of claim 14 when said measuring device (1) depends on claim 10 characterized in that:

said apparatus comprises a memory comprising data making it possible to define a position on said slide, in that

said apparatus is able to communicate with said communication means of said measuring device (1) for transmitting said data making it possible to define a position on the slide, and in that

said display means are able to display said data to indicate to a user one or more positions on the slider.