CA2132379A1 - Measuring device for removable multiple zone sensors - Google Patents
Measuring device for removable multiple zone sensorsInfo
- Publication number
- CA2132379A1 CA2132379A1 CA 2132379 CA2132379A CA2132379A1 CA 2132379 A1 CA2132379 A1 CA 2132379A1 CA 2132379 CA2132379 CA 2132379 CA 2132379 A CA2132379 A CA 2132379A CA 2132379 A1 CA2132379 A1 CA 2132379A1
- Authority
- CA
- Canada
- Prior art keywords
- electrical contact
- measuring device
- multiple zone
- zone sensor
- measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/483—Physical analysis of biological material
- G01N33/487—Physical analysis of biological material of liquid biological material
- G01N33/4875—Details of handling test elements, e.g. dispensing or storage, not specific to a particular test method
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Medicinal Chemistry (AREA)
- Molecular Biology (AREA)
- Urology & Nephrology (AREA)
- Biophysics (AREA)
- Food Science & Technology (AREA)
- Hematology (AREA)
- Analytical Chemistry (AREA)
- Optics & Photonics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
ABSTRACT
The present invention concerns a measuring device, notably for measuring glucose level in blood, intended to be used with a removable sensor comprising a plurality of active zones. In particular, the invention concerns a mobile connector securing the electrical connection between the removable sensor and an electronic measuring circuit fixed to the case of this measuring device. This electrical connection is achieved by means of sliding electrical contacts.
The present invention concerns a measuring device, notably for measuring glucose level in blood, intended to be used with a removable sensor comprising a plurality of active zones. In particular, the invention concerns a mobile connector securing the electrical connection between the removable sensor and an electronic measuring circuit fixed to the case of this measuring device. This electrical connection is achieved by means of sliding electrical contacts.
Description
2~32379 Case 1108 MEASURING DEvIOE FOR REMovAsLE MULTIPLE ZONE SENSORS
The present invention concerns a measuring device intended to be used with a removable sensor comprising a plurality of single use active zones. Such a sensor is hereafter called a "multiple zone sensor".
More particularly, the present invention concerns a mobile connector used to electrically connect an electric or electronic measuring circuit, arranged in a case of the measuring device, to a removable multiple zone sensor used to carry out a p]urality of measurements, in particular, electrochemical measurements. -~
In figures 1 and 2 an electrochemical measuring device such as that described in patent application FR 92 01331 is shown. -~
On figure 1 is shown partially and in perspective an exploded view of a rnultiple zone sensor comprising an insulating substrate 2 on the surface of which are provided two conductors 4 and 6 used to conduct an electrical measurement current. A coating 8, which is also insulating, is provided on these conductors 4 and 6.
Coating 8 com~rises a first series of openings 10a, 10b, 10c, at least partially superposed onto first conductor 4 and a second series of openings 12a, 12b, 12c at least partially superposed onto second conductor 6. At one end 13 of coating 8 at least one opening 14 is provided, being used to open an electrical contact surface on each of two conductors 4 and 6.
It will be noted that conductors 4 and 6 are electrically insulated from each other and that first series of openings 10a, 10b, 10c is not superposed onto second conductor 6. Similarly, second series of openings 12a, 12b, 12c is not superposed onto first conductor 4.
Each pair of corresponding openings respectively 10a and 12a, 10b and 12b, 10c and 12 c, defines an active zone of the multiple zone sensor. The electrochemical functioning .~
~132379 of such a multiple zone sensor is approximately identical to that of a single zone sensor such as described, for example, in patent application WO 92/14836.
The substance to be analysed, for example blood, in a possible application for the measurement of the glucose level in blood, is brought into one of the active zones of the multiple zone sensor. To carry out a valid electrochemical measurement, it is necessary that only one of the active zones of the multiple zone sensor be covered with the substance to be analysed, the remaining active zones having necessarily to remain unused.
Figure 2 shows an electrochemical measuring device, designated by the general reference 20, intended to receive a removable multiple zone sensor of the type described in figure 1.
Electrochemical measuring device 20 comprises a case 22 inside which is provided electronic measuring means 24.
Further, this electrochemical measuring device 20 includes an advancing arrangement 26 used to displace multiple zone sensor 28 which is introduced into the interior of case 22.
In order to cut off an active zone, following use thereof in order to carry out an electrochemical measurement, of the multiple zone sensor 28 in order to separate the portion of such multiple zone sensor 28 comprising said used active zone, from the remaining portion of the latter, there is provided a cutting device 30.
Cutting device 30 comprises a push-piece 32 and a blade 34 fixed to said push-piece 32. Cutting device 30 is arranged in such a way that push-piece 32 is adapted to effect a displacement, in a direction transversal to multiple zone sensor 28, sufficiently great to enable blade 34 to traverse completely said multiple zone sensor 28.
Advancing arrangement 26 comprises an external push-piece 38 fixed to a mobile slide 40 to which multiple zone 21~237~ ~
sensor 28 is fixed. Mobile slide 40 is capable of sliding along a guiding rail 42.
Further, mobile slide 40 is securely connected to a connector 44 comprising two electrical contact members 46 and 48 used to establish respectively two electrical connections with two contact surfaces 50 and 52 provided on said removable multiple zone sensor 28.
On the other hand, connector 44 is electrically connected to electronic measuring means 24, fixed to case 22, by means of a flexible multi-conductor cable 54 which is flat and capable of being concertinaed.
The electrical connection between connector 44 and electronic measuring means 24 established by means of flexible multi-conductor cable 54 has certain disadvantages. First, given that flexible multi-conductor cable 54 is subjected alternatively to contractions and extensions, mechanical stresses ensue, exerted on the connecting soldering between the end of flexible multi-conductor cable 54 and electronic measuring means 24. Thus measuring device 20 is likely to deteriorate relatively quickly.
Secondly, the long distance covered by mobile slide 40 inside case 20 re~uires flexible multi-conductor 54 to be sufficiently long to enable mobile slide to cover this long distance. Consequently, it is difficult to obtain a correct contraction of flexible multi-conductor cable 54 when mobile slide 40 is moved in the direction of electronic measuring means 24. It has been noted that cable 54 tends to spread out in the ~ree space inside case ~2 when mobile slide 40 is placed in a retracted position in the direction of electronic measuring means 24. This increases the mechanical stresses on the connecting soldering between cable 54 and connector 44.
A purpose of the present invention is to overcome the disadvantages mentioned above in providing a measuring device equipped with reliable connecting means between a removable multiple zone sensor and electronic measuring ~ ~132379 means, provided in said measuring device, and adapted to the mobile nature of the removable multiple zone sensor used with this measuring device.
The present invention therefore provides a measuring device, intended to be used with a removable multiple zone sensor, comprising a case, an electric measuring circuit arranged in this case and a mobile connector used to connect electrically this electric measuring circuit to said removable multiple zone sensor. The mobile connector comprises first electrical contact means intended to connect electrically this mobile connector to the removable multiple zone sensor and second electrical contact means electrically connected to the first electrical contact means and used to connect electrically this mobile connector to the electric measuring circuit.
This measuring device is characterised in that the second electrical contact means comprises at least two electrical contact members and in that it comprises two fixed collectors arranged inside the case is such a way that the two electrical contact members are in electrical contact respectively with the two fixed collectors when said mobile connector is situated in any measuring position among a plurality of different measuring positions.
According to a preferred embodiment of the invention, the two fixed collectors are formed respectively of two metallized tracks against which said two electrical contact members respectively rest so as to form two sliding electrical contacts between these two metallized tracks and these two electrical contact members.
~ hus the electrical connection between the removable multiple zone sensor introduced into the measuring device and the electric circuit is ensured without the presence of a flexible multi-conductor cable. Further, no soldering is necessary between the mobile connector and the electric measuring circuit. The electrical connection between the mobile connector and the electric circuit is reliable and not subject to mechanical stresses when the mobile 2~32379 connector fixed to said removable mul~iple zone sensor is moved, apart from the friction o~ the two electrical contact members on the two respective fixed collectors. ~-Other characteristics and advantages of the invention will be described below with the help of the following description made with reference to the attached drawings, given pure~y by way of non-limitative examples, in which :
- figure 1, already described, shows in perspective a exploded view of a removable multiple zone sensor;
- figure 2, already described, shows schematically a measuring device used with the removable multiple zone sensor shown in figure 1;
- figure 3 is a schematical view partially broken away of an embodiment of a measuring device according to the invention;
- figure 4 is a enlarged partial view of figure 3 showing a mobile connector according to the invention;
- figure 5 is a cross sectional view taken along line V-V of figure 4; .
- figure 6 is a similar view to figure 4, but showing an alternative embodiment of the mobile connector;
- figure 7 is a side view of the mobil.e connector shown in figure 6.
With the help of figures 3 to 5, an embodiment of a measuring device according to the invention will be described hereinafter.
In figure 3 a measuring device 102 is shown, comprising a case 104 the upper portion of whi.ch has been partially broken away. Measuring device 102 is intended to he used with removable multiple zone sensor 108. In order to enable removable multiple zone sensor 108 introduced inside case 104 to be displaced, an advancing arrangement is provided inside case 104, comprising a mobile stop 110 used with an elastic strip 112 and a fixed stop 114 fixed to case 104.
Mobile stop 110 comprises two oblong openings 116 and 118 inside which are placed respectively two studs 120 and .:
~, .
~2379 122 protruding from a mobile bar 124 guided inside a slideway 126. Bar 124 is integrally connected to a push-piece (not shown) enabling mobile stop 110 to be displaced from its resting position, in which it is shown in figure 3, towards orifice 128 used to introduce removable sensor 108 inside case 104.
A return spring 130 is also provided connected at one end to bar 124 and at the other end to case 104. Return spring 130 enables mobile stop 110 to be brought back into its resting position when it has been displaced by a user to move forward removable multiple zone sensor 108 inside case 104. The advancing arrangement provided in the interior of case 104 is used with advancing notches 132 placed along removable multiple zone sensor 108. Mobile stop 110 is arranged so that its end 134 fits inside one of advancing notches 132 when the mobile stop is actuated by a user by means of the push-piece (not shown).
A positioning spring 138 is also provided in case 104, co-operating with positioning nicks 140 provided along removable multiple zone sensor 108. Positioning spring 138 used with positioning nicks 140 de~ines a plurality of different measuring positions of removable multiple zone sensor 108 in relation to case 104.
It will be noted that positioning nicks 140 are placed at regular intervals along removable multiple zone sensor 108. Similarly, advancing notches 132 are placed along removable multiple zone sensor 108 at regular inter~als identical to the regular intervals provided between the positioning nicks 140.
The position of positioning nicks 140 in relation to advancing notches 132 is determined as a function of the position of the hook 142 of positioning spring 138 which secures the holding of removable multiple zone sensor 108 in any measuring position and of fixed stop 114 which determines the resting position of mobile stop 110.
In the case where removable multiple zone sensor 108 comprises single use active zones 144, it is necessary to .
:
~ .. . . .
~ : . - : . : .
7 2~32379 cut off this removable multiple zone sensor 108 a~ter each measurement in order to separate the active zone used for this measurement from other non-used active zones. To this end, a blade 148 is provided arranged inside the cover 106 of measuring device 102, blade 148 undergoin~ a rotating movement with cover 106. Thus, a user can actuate cover 106 in order to cut multiple zone sensor 108 between two consecutive measurements.
With the help of figures 3 to 5 the electrical connection device between an electric measuring circuit or measuring electronic means (not shown), included inside case 104, and removable multiple zone sensor 108 will be described more particularly below.
According to the invention, the electrical connection arrangement between removable multiple zone sensor 108 and measuring electronic means fixed to case 104 comprises a mobi'e connector 150 including a mobile slide 151 guided inside a slideway 153 arranged in the interior of case 104. Mobile connector 150 also includes first electrical contact means formed by two electrical contact members 152 and 154. These two electrical contact members 152 and 154 are formed respectively by two metallic elastic strips each comprising a free bent end 156, 158 and being used to establish respectively two electrical contacts by pressure with two electrical contact surfaces 160, 162, provided on one end section of removable multiple zone sensor 108.
Mobile connector 150 also comprises second electrical contact means formed, in this embodiment, by two electrical contact members 164 and 166. Two electrical contact members 152 and 154 belonging to the first electrical contact means are electrically connected respectively to two electrical contact members 164 and 166.
Both of the two electrical contact members 164 and 166 also consist of two metallic elastic strips each comprising a bent end 168, 170 forming a hook and are used to establish respectively two electrical contacts by ^ 8 ~32379 pressure with two fixed respective collectors 172, 174.
Two respective fixed collectors 172, 174, consisting in this embodiment of two metallised continuous tracks, form in conjunction with two respective electrical contact members 164 and 166 two sliding electrical contacts thus ensuring a reliable electrical contact between mobile connector 150 electrica~ly connected to removable multiple zone sensor 108 and measuring electronic means (or electric measuring circuit) which are not shown.
In the embodiment described here, two electrical contact members 152 and 154 form respectively with two electrical contact members 164 and 166, to which they are electrically connected, two flat structures securely fixed to mobile slide 151 and electrically insulated from each other. It will also be noted that two metallised tracks 172 and 174 are insulated from each other. Thus, mobile connector 150 used with two metallised tracks 172 and 17~
enable an electric circuit to be established between each of active zones 144 of removable multiple zone sensor 108 and the electronic measuring means mentioned above.
In order to fix securely, but in a reversible manner, removable multiple zone sensor 108 to mobile connector 150, a hook 178 used with an opening 180 provided in removable multiple zone sensor 108. Hook 178 is capable of undergoing a movement perpendicular to the general plane of removable multiple zone sensor 108 in such a way as to enable sensor 108 to be fixed to or released from mobile connector 150. Any other means of reversible fixing known by a man skilled in the art and suitable for such an arrangement may of course be envisaged.
It will also be noted that mobile slide 151 comprises two guiding rails 182 and 184 which co-operate with slideway 153 to drive mobile slide 151 in the interior of case 104 of measuring device 102.
In figures 6 and 7 an alternative embodiment of mobile connector 150 described above is shown.
. : , : ~ .::
In figures 6 and 7, mobile connector 190 differs from mobile connector 150 described above in that it also comprises a protection structure 192 used to protect bent ends 156 and 158 of two electrical contact members 152 and 15~ when a removable multiple zone sensor is introduced into mobile connector 190. Protection structure 192 thus prevents the repeated introduction of removable multiple zone sensors into mobile connector 190 causing damage to bent ends 156 and 158 by distorting them, which would be disastrous for the establishment of a correct electrical connection.
In an embodiment of the invention not shown, it is possible to provide an arrangement similar to that proposed in figure 3, but in which at least one of the fixed collectors, used to connect electrically mobile connector 150 or 190 to a measuring circuit, is formed by an set of electrical contact surfaces disposed along the path provided for the mobile connector and in particular for the electrical contact member of this mobile connector used with this fixed collector. ~:
Each of said electrical contact surfaces corresponds to a particular measuring position of the mobile connector and is arranged to enable an electrical contact to be made with the electrical contact member used with the mobile :
connector when the latter is situated in this particular measuring position.
It should be noted here that the different measuring positions of the mobile connector are determined by positioning spring 138, in particular by hook 142 of positioning spring 138, and by positioning nicks 140 provided along removable multiple zone sensor 108. The different electrical contact zones mentioned above are electrically connected to said electric measuring circuit in such a way as to enable this electric measuring circuit to determine in which measuring position the mobile connector is situated.
~ 1~32379 In the latter embodiment, the electric connection between the mobile connector and fixed collectors 172 and 174 is also achieved by two sliding electrical contacts of the type previously described.
The present invention concerns a measuring device intended to be used with a removable sensor comprising a plurality of single use active zones. Such a sensor is hereafter called a "multiple zone sensor".
More particularly, the present invention concerns a mobile connector used to electrically connect an electric or electronic measuring circuit, arranged in a case of the measuring device, to a removable multiple zone sensor used to carry out a p]urality of measurements, in particular, electrochemical measurements. -~
In figures 1 and 2 an electrochemical measuring device such as that described in patent application FR 92 01331 is shown. -~
On figure 1 is shown partially and in perspective an exploded view of a rnultiple zone sensor comprising an insulating substrate 2 on the surface of which are provided two conductors 4 and 6 used to conduct an electrical measurement current. A coating 8, which is also insulating, is provided on these conductors 4 and 6.
Coating 8 com~rises a first series of openings 10a, 10b, 10c, at least partially superposed onto first conductor 4 and a second series of openings 12a, 12b, 12c at least partially superposed onto second conductor 6. At one end 13 of coating 8 at least one opening 14 is provided, being used to open an electrical contact surface on each of two conductors 4 and 6.
It will be noted that conductors 4 and 6 are electrically insulated from each other and that first series of openings 10a, 10b, 10c is not superposed onto second conductor 6. Similarly, second series of openings 12a, 12b, 12c is not superposed onto first conductor 4.
Each pair of corresponding openings respectively 10a and 12a, 10b and 12b, 10c and 12 c, defines an active zone of the multiple zone sensor. The electrochemical functioning .~
~132379 of such a multiple zone sensor is approximately identical to that of a single zone sensor such as described, for example, in patent application WO 92/14836.
The substance to be analysed, for example blood, in a possible application for the measurement of the glucose level in blood, is brought into one of the active zones of the multiple zone sensor. To carry out a valid electrochemical measurement, it is necessary that only one of the active zones of the multiple zone sensor be covered with the substance to be analysed, the remaining active zones having necessarily to remain unused.
Figure 2 shows an electrochemical measuring device, designated by the general reference 20, intended to receive a removable multiple zone sensor of the type described in figure 1.
Electrochemical measuring device 20 comprises a case 22 inside which is provided electronic measuring means 24.
Further, this electrochemical measuring device 20 includes an advancing arrangement 26 used to displace multiple zone sensor 28 which is introduced into the interior of case 22.
In order to cut off an active zone, following use thereof in order to carry out an electrochemical measurement, of the multiple zone sensor 28 in order to separate the portion of such multiple zone sensor 28 comprising said used active zone, from the remaining portion of the latter, there is provided a cutting device 30.
Cutting device 30 comprises a push-piece 32 and a blade 34 fixed to said push-piece 32. Cutting device 30 is arranged in such a way that push-piece 32 is adapted to effect a displacement, in a direction transversal to multiple zone sensor 28, sufficiently great to enable blade 34 to traverse completely said multiple zone sensor 28.
Advancing arrangement 26 comprises an external push-piece 38 fixed to a mobile slide 40 to which multiple zone 21~237~ ~
sensor 28 is fixed. Mobile slide 40 is capable of sliding along a guiding rail 42.
Further, mobile slide 40 is securely connected to a connector 44 comprising two electrical contact members 46 and 48 used to establish respectively two electrical connections with two contact surfaces 50 and 52 provided on said removable multiple zone sensor 28.
On the other hand, connector 44 is electrically connected to electronic measuring means 24, fixed to case 22, by means of a flexible multi-conductor cable 54 which is flat and capable of being concertinaed.
The electrical connection between connector 44 and electronic measuring means 24 established by means of flexible multi-conductor cable 54 has certain disadvantages. First, given that flexible multi-conductor cable 54 is subjected alternatively to contractions and extensions, mechanical stresses ensue, exerted on the connecting soldering between the end of flexible multi-conductor cable 54 and electronic measuring means 24. Thus measuring device 20 is likely to deteriorate relatively quickly.
Secondly, the long distance covered by mobile slide 40 inside case 20 re~uires flexible multi-conductor 54 to be sufficiently long to enable mobile slide to cover this long distance. Consequently, it is difficult to obtain a correct contraction of flexible multi-conductor cable 54 when mobile slide 40 is moved in the direction of electronic measuring means 24. It has been noted that cable 54 tends to spread out in the ~ree space inside case ~2 when mobile slide 40 is placed in a retracted position in the direction of electronic measuring means 24. This increases the mechanical stresses on the connecting soldering between cable 54 and connector 44.
A purpose of the present invention is to overcome the disadvantages mentioned above in providing a measuring device equipped with reliable connecting means between a removable multiple zone sensor and electronic measuring ~ ~132379 means, provided in said measuring device, and adapted to the mobile nature of the removable multiple zone sensor used with this measuring device.
The present invention therefore provides a measuring device, intended to be used with a removable multiple zone sensor, comprising a case, an electric measuring circuit arranged in this case and a mobile connector used to connect electrically this electric measuring circuit to said removable multiple zone sensor. The mobile connector comprises first electrical contact means intended to connect electrically this mobile connector to the removable multiple zone sensor and second electrical contact means electrically connected to the first electrical contact means and used to connect electrically this mobile connector to the electric measuring circuit.
This measuring device is characterised in that the second electrical contact means comprises at least two electrical contact members and in that it comprises two fixed collectors arranged inside the case is such a way that the two electrical contact members are in electrical contact respectively with the two fixed collectors when said mobile connector is situated in any measuring position among a plurality of different measuring positions.
According to a preferred embodiment of the invention, the two fixed collectors are formed respectively of two metallized tracks against which said two electrical contact members respectively rest so as to form two sliding electrical contacts between these two metallized tracks and these two electrical contact members.
~ hus the electrical connection between the removable multiple zone sensor introduced into the measuring device and the electric circuit is ensured without the presence of a flexible multi-conductor cable. Further, no soldering is necessary between the mobile connector and the electric measuring circuit. The electrical connection between the mobile connector and the electric circuit is reliable and not subject to mechanical stresses when the mobile 2~32379 connector fixed to said removable mul~iple zone sensor is moved, apart from the friction o~ the two electrical contact members on the two respective fixed collectors. ~-Other characteristics and advantages of the invention will be described below with the help of the following description made with reference to the attached drawings, given pure~y by way of non-limitative examples, in which :
- figure 1, already described, shows in perspective a exploded view of a removable multiple zone sensor;
- figure 2, already described, shows schematically a measuring device used with the removable multiple zone sensor shown in figure 1;
- figure 3 is a schematical view partially broken away of an embodiment of a measuring device according to the invention;
- figure 4 is a enlarged partial view of figure 3 showing a mobile connector according to the invention;
- figure 5 is a cross sectional view taken along line V-V of figure 4; .
- figure 6 is a similar view to figure 4, but showing an alternative embodiment of the mobile connector;
- figure 7 is a side view of the mobil.e connector shown in figure 6.
With the help of figures 3 to 5, an embodiment of a measuring device according to the invention will be described hereinafter.
In figure 3 a measuring device 102 is shown, comprising a case 104 the upper portion of whi.ch has been partially broken away. Measuring device 102 is intended to he used with removable multiple zone sensor 108. In order to enable removable multiple zone sensor 108 introduced inside case 104 to be displaced, an advancing arrangement is provided inside case 104, comprising a mobile stop 110 used with an elastic strip 112 and a fixed stop 114 fixed to case 104.
Mobile stop 110 comprises two oblong openings 116 and 118 inside which are placed respectively two studs 120 and .:
~, .
~2379 122 protruding from a mobile bar 124 guided inside a slideway 126. Bar 124 is integrally connected to a push-piece (not shown) enabling mobile stop 110 to be displaced from its resting position, in which it is shown in figure 3, towards orifice 128 used to introduce removable sensor 108 inside case 104.
A return spring 130 is also provided connected at one end to bar 124 and at the other end to case 104. Return spring 130 enables mobile stop 110 to be brought back into its resting position when it has been displaced by a user to move forward removable multiple zone sensor 108 inside case 104. The advancing arrangement provided in the interior of case 104 is used with advancing notches 132 placed along removable multiple zone sensor 108. Mobile stop 110 is arranged so that its end 134 fits inside one of advancing notches 132 when the mobile stop is actuated by a user by means of the push-piece (not shown).
A positioning spring 138 is also provided in case 104, co-operating with positioning nicks 140 provided along removable multiple zone sensor 108. Positioning spring 138 used with positioning nicks 140 de~ines a plurality of different measuring positions of removable multiple zone sensor 108 in relation to case 104.
It will be noted that positioning nicks 140 are placed at regular intervals along removable multiple zone sensor 108. Similarly, advancing notches 132 are placed along removable multiple zone sensor 108 at regular inter~als identical to the regular intervals provided between the positioning nicks 140.
The position of positioning nicks 140 in relation to advancing notches 132 is determined as a function of the position of the hook 142 of positioning spring 138 which secures the holding of removable multiple zone sensor 108 in any measuring position and of fixed stop 114 which determines the resting position of mobile stop 110.
In the case where removable multiple zone sensor 108 comprises single use active zones 144, it is necessary to .
:
~ .. . . .
~ : . - : . : .
7 2~32379 cut off this removable multiple zone sensor 108 a~ter each measurement in order to separate the active zone used for this measurement from other non-used active zones. To this end, a blade 148 is provided arranged inside the cover 106 of measuring device 102, blade 148 undergoin~ a rotating movement with cover 106. Thus, a user can actuate cover 106 in order to cut multiple zone sensor 108 between two consecutive measurements.
With the help of figures 3 to 5 the electrical connection device between an electric measuring circuit or measuring electronic means (not shown), included inside case 104, and removable multiple zone sensor 108 will be described more particularly below.
According to the invention, the electrical connection arrangement between removable multiple zone sensor 108 and measuring electronic means fixed to case 104 comprises a mobi'e connector 150 including a mobile slide 151 guided inside a slideway 153 arranged in the interior of case 104. Mobile connector 150 also includes first electrical contact means formed by two electrical contact members 152 and 154. These two electrical contact members 152 and 154 are formed respectively by two metallic elastic strips each comprising a free bent end 156, 158 and being used to establish respectively two electrical contacts by pressure with two electrical contact surfaces 160, 162, provided on one end section of removable multiple zone sensor 108.
Mobile connector 150 also comprises second electrical contact means formed, in this embodiment, by two electrical contact members 164 and 166. Two electrical contact members 152 and 154 belonging to the first electrical contact means are electrically connected respectively to two electrical contact members 164 and 166.
Both of the two electrical contact members 164 and 166 also consist of two metallic elastic strips each comprising a bent end 168, 170 forming a hook and are used to establish respectively two electrical contacts by ^ 8 ~32379 pressure with two fixed respective collectors 172, 174.
Two respective fixed collectors 172, 174, consisting in this embodiment of two metallised continuous tracks, form in conjunction with two respective electrical contact members 164 and 166 two sliding electrical contacts thus ensuring a reliable electrical contact between mobile connector 150 electrica~ly connected to removable multiple zone sensor 108 and measuring electronic means (or electric measuring circuit) which are not shown.
In the embodiment described here, two electrical contact members 152 and 154 form respectively with two electrical contact members 164 and 166, to which they are electrically connected, two flat structures securely fixed to mobile slide 151 and electrically insulated from each other. It will also be noted that two metallised tracks 172 and 174 are insulated from each other. Thus, mobile connector 150 used with two metallised tracks 172 and 17~
enable an electric circuit to be established between each of active zones 144 of removable multiple zone sensor 108 and the electronic measuring means mentioned above.
In order to fix securely, but in a reversible manner, removable multiple zone sensor 108 to mobile connector 150, a hook 178 used with an opening 180 provided in removable multiple zone sensor 108. Hook 178 is capable of undergoing a movement perpendicular to the general plane of removable multiple zone sensor 108 in such a way as to enable sensor 108 to be fixed to or released from mobile connector 150. Any other means of reversible fixing known by a man skilled in the art and suitable for such an arrangement may of course be envisaged.
It will also be noted that mobile slide 151 comprises two guiding rails 182 and 184 which co-operate with slideway 153 to drive mobile slide 151 in the interior of case 104 of measuring device 102.
In figures 6 and 7 an alternative embodiment of mobile connector 150 described above is shown.
. : , : ~ .::
In figures 6 and 7, mobile connector 190 differs from mobile connector 150 described above in that it also comprises a protection structure 192 used to protect bent ends 156 and 158 of two electrical contact members 152 and 15~ when a removable multiple zone sensor is introduced into mobile connector 190. Protection structure 192 thus prevents the repeated introduction of removable multiple zone sensors into mobile connector 190 causing damage to bent ends 156 and 158 by distorting them, which would be disastrous for the establishment of a correct electrical connection.
In an embodiment of the invention not shown, it is possible to provide an arrangement similar to that proposed in figure 3, but in which at least one of the fixed collectors, used to connect electrically mobile connector 150 or 190 to a measuring circuit, is formed by an set of electrical contact surfaces disposed along the path provided for the mobile connector and in particular for the electrical contact member of this mobile connector used with this fixed collector. ~:
Each of said electrical contact surfaces corresponds to a particular measuring position of the mobile connector and is arranged to enable an electrical contact to be made with the electrical contact member used with the mobile :
connector when the latter is situated in this particular measuring position.
It should be noted here that the different measuring positions of the mobile connector are determined by positioning spring 138, in particular by hook 142 of positioning spring 138, and by positioning nicks 140 provided along removable multiple zone sensor 108. The different electrical contact zones mentioned above are electrically connected to said electric measuring circuit in such a way as to enable this electric measuring circuit to determine in which measuring position the mobile connector is situated.
~ 1~32379 In the latter embodiment, the electric connection between the mobile connector and fixed collectors 172 and 174 is also achieved by two sliding electrical contacts of the type previously described.
Claims (7)
1. Measuring device, intended to be used with a removable multiple zone sensor, comprising a case, and electric measuring circuit arranged in this case and a mobile connector used to connect electrically this electric measuring circuit to said removable multiple zone sensor, this mobile connector comprising first electrical contact means intended to connect electrically this mobile connector to said removable multiple zone sensor and second electrical contact means electrically connected to said first electrical contact means and being used to connect electrically this mobile connector to said electric measuring circuit, said second electrical contact means being formed by at least two electrical contact members and including two fixed collectors arranged inside said case in such a way that said two electrical contact members are respectively in electrical contact with these two fixed collectors when said mobile connector is situated in any measuring position among a plurality of different measuring positions.
2. Measuring device according to claim 1 wherein said mobile connector includes a mobile slide guided in a slideway arranged in said case of this measuring device.
3. Measuring device according to claim 1 wherein said two fixed collectors consist respectively of two metallised tracks against which said two electrical contact members respectively rest so as to form respectively two sliding electrical contacts between said two metallised tracks and said two electrical contact members.
4. Measuring device according to claim 1 wherein at least one of the two fixed collectors is formed by a set of electrical contact surfaces placed along a path provided for said electrical contact member used with this fixed collector, each of said electrical contact surfaces corresponding to a different measuring position of said mobile connector.
5. Measuring device according to claim 1 wherein said two electrical contact members are each formed by an elastic strip including a free bent end.
6. Measuring device according to claim 1 wherein said first contact means are formed by two elastic strips, these two elastic strips being respectively electrically connected to the two electrical contact members and arranged so as to be respectively in electrical contact with two electrical contact surfaces provided on said removable multiple zone sensor when the latter is joined to said mobile connector.
7. Measuring device according to claim 1 wherein this measuring device and said removable multiple zone sensor with which it is used are arranged to measure glucose level in blood.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9311317 | 1993-09-21 | ||
| FR9311317A FR2710412A1 (en) | 1993-09-21 | 1993-09-21 | Measuring device for removable multi-zone sensors. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2132379A1 true CA2132379A1 (en) | 1995-03-22 |
Family
ID=9451149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2132379 Abandoned CA2132379A1 (en) | 1993-09-21 | 1994-09-19 | Measuring device for removable multiple zone sensors |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0644424A1 (en) |
| JP (1) | JPH07151721A (en) |
| AU (1) | AU7303294A (en) |
| CA (1) | CA2132379A1 (en) |
| FR (1) | FR2710412A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10234414B2 (en) | 2014-05-13 | 2019-03-19 | Arkray, Inc. | Measurement apparatus, and method for operating measurement apparatus |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2733743B1 (en) * | 1995-05-02 | 1997-06-27 | Asulab Sa | DISPENSING APPARATUS FOR MAXIMUM SAVING OF USING SUCCESSIVE AREAS OF A CONSUMABLE STRIP |
| FR2733744B1 (en) * | 1995-05-02 | 1997-06-20 | Asulab Sa | APPARATUS FOR DISTRIBUTING SUCCESSIVE AREAS OF A CONSUMABLE STRIP |
| GB9708585D0 (en) * | 1997-04-29 | 1997-06-18 | Eastman Kodak Co | Apparatus, magazine and method for electrochemical detection or measurement |
| JP4612192B2 (en) * | 1998-11-30 | 2011-01-12 | アボット・ラボラトリーズ | Multi-chemical measuring device and test piece |
| WO2003089917A1 (en) * | 2002-04-19 | 2003-10-30 | Matsushita Electric Industrial Co., Ltd. | Biosensor cartridge and biosensor dispensing device |
| US8398443B2 (en) * | 2006-04-21 | 2013-03-19 | Roche Diagnostics Operations, Inc. | Biological testing system and connector therefor |
| EP2944949B1 (en) | 2014-05-13 | 2017-11-22 | ARKRAY, Inc. | Measurement apparatus, and method for operating measurement apparatus |
| CN111729722B (en) * | 2020-06-22 | 2021-07-13 | 抚州市鹤达实业有限公司 | Abrasive device is used in modified starch production and processing |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0459511B1 (en) * | 1990-05-31 | 1995-12-13 | Daikin Industries, Ltd. | Apparatus for measuring concentration of test substance in a liquid |
| GB9112086D0 (en) * | 1991-06-05 | 1991-07-24 | Capteur Sensors & Analysers | Improvements relating to electrodes |
| DE4123348A1 (en) * | 1991-07-15 | 1993-01-21 | Boehringer Mannheim Gmbh | ELECTROCHEMICAL ANALYSIS SYSTEM |
-
1993
- 1993-09-21 FR FR9311317A patent/FR2710412A1/en active Pending
-
1994
- 1994-09-14 EP EP94114426A patent/EP0644424A1/en not_active Withdrawn
- 1994-09-19 AU AU73032/94A patent/AU7303294A/en not_active Abandoned
- 1994-09-19 CA CA 2132379 patent/CA2132379A1/en not_active Abandoned
- 1994-09-20 JP JP22443794A patent/JPH07151721A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10234414B2 (en) | 2014-05-13 | 2019-03-19 | Arkray, Inc. | Measurement apparatus, and method for operating measurement apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2710412A1 (en) | 1995-03-31 |
| JPH07151721A (en) | 1995-06-16 |
| AU7303294A (en) | 1995-04-06 |
| EP0644424A1 (en) | 1995-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4630874A (en) | Zero insertion force electrical interconnection assembly | |
| EP0590429B1 (en) | Electrical edge connector | |
| US4169641A (en) | Connector clip for flat cable | |
| US4634195A (en) | Electrical interconnection device | |
| US4684183A (en) | Connector for flexible printed circuit | |
| US4283103A (en) | Electrical crimp connector | |
| JP2602479B2 (en) | Electrical connector for high-density ribbon cable | |
| KR100436966B1 (en) | Cable assembly | |
| US3772775A (en) | Method of making flat conductor cable assemblies | |
| CA2132379A1 (en) | Measuring device for removable multiple zone sensors | |
| NO882289L (en) | FLAT CABLE CONNECTOR. | |
| JP3260759B2 (en) | Wire management adapter for cable termination connection | |
| FI63842C (en) | HOPSAETTNINGSVERKTYG FOER ELEKTRISKA ANSLUTNINGAR | |
| US6309223B1 (en) | Terminal assembly for flexible circuit strip | |
| EP0967683B1 (en) | Connector for a coaxial flat cable | |
| JPH0457074B2 (en) | ||
| JP2006505105A (en) | Clamp connector for flexible ribbon cable | |
| EP0115425B1 (en) | Connector assemble having improved internal latching system | |
| KR950034899A (en) | Electrical connector | |
| EP0476355B1 (en) | Transportation protection and insertion device for multiconductor cables | |
| US5967818A (en) | Electrical distribution duct with transmission bus | |
| CA2202536A1 (en) | Flexible electrical conductor | |
| KR890012415A (en) | Stacked Connectors | |
| GB2232818A (en) | Slide switch | |
| CA2132381A1 (en) | Measurement arrangement for multiple zone removable sensors including an ejection system for such sensors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |