EP4251044A1 - Sensorvorrichtung, verwendung einer sensorvorrichtung und verfahren zur erfassung der eigenschaften eines hautbereichs - Google Patents
Sensorvorrichtung, verwendung einer sensorvorrichtung und verfahren zur erfassung der eigenschaften eines hautbereichsInfo
- Publication number
- EP4251044A1 EP4251044A1 EP21816046.3A EP21816046A EP4251044A1 EP 4251044 A1 EP4251044 A1 EP 4251044A1 EP 21816046 A EP21816046 A EP 21816046A EP 4251044 A1 EP4251044 A1 EP 4251044A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- skin area
- sensor
- skin
- sensor device
- sensor unit
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
- A61M37/0015—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin by using microneedles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
- A61B5/14546—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue for measuring analytes not otherwise provided for, e.g. ions, cytochromes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4848—Monitoring or testing the effects of treatment, e.g. of medication
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
- A61B5/0015—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by features of the telemetry system
- A61B5/002—Monitoring the patient using a local or closed circuit, e.g. in a room or building
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
- A61B5/0531—Measuring skin impedance
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
- A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
- A61B5/443—Evaluating skin constituents, e.g. elastin, melanin, water
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/683—Means for maintaining contact with the body
- A61B5/6832—Means for maintaining contact with the body using adhesives
- A61B5/6833—Adhesive patches
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
- A61M37/0015—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin by using microneedles
- A61M2037/0023—Drug applicators using microneedles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M37/00—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin
- A61M37/0015—Other apparatus for introducing media into the body; Percutany, i.e. introducing medicines into the body by diffusion through the skin by using microneedles
- A61M2037/0061—Methods for using microneedles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3317—Electromagnetic, inductive or dielectric measuring means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2230/00—Measuring parameters of the user
- A61M2230/65—Impedance, e.g. conductivity, capacity
Definitions
- Sensor device use of a sensor device and method for detecting the properties of an area of skin
- the invention relates to a sensor device for detecting properties of a skin area, the use of such a sensor device and a method for detecting the properties of a main area.
- Microneedle arrays also called microarrays, have a large number of microneedles, which are usually arranged on a carrier element, such as a patch, a plaster or the like, or are connected to a carrier element.
- a carrier element such as a patch, a plaster or the like
- Such microarrays have a large number of microneedles, for example 100 to 600 needles per cm 2 .
- the needles are short, so that when the microneedles are pressed into the skin of a patient, the needles penetrate the skin only far enough so that nerves and blood vessels are not touched by the needle tips, if possible.
- the microneedles contain an active substance or a drug.
- the relevant active agent can be attached to a surface of the needles or can be arranged in the needles. It is preferred that the needles are made of a skin soluble material.
- microarray am desired skin location is applied, that a correct insertion, in particular a correct insertion depth into the desired skin layer, takes place, that a correct/sufficient amount of active substance is released, that the application is reproducible, in particular independent of the respective skin condition, and/or that the active substance was only introduced at the desired location and, for example, did not subsequently diffuse to the surface.
- the object of the invention is to create a sensor device for detecting the properties of a skin area, the use of such a sensor device and a method for detecting the properties of a skin area, whereby the introduction of a substance, in particular an active substance, on and/or in the skin can be detected.
- the object is achieved according to the invention by a sensor device according to claim 1, a use of a sensor device according to claim 14 and a method according to claim 16.
- the sensor device has at least one sensor unit.
- Each sensor unit has at least one transmitter.
- the at least one transmitter is designed to emit an electrical and/or magnetic signal to the skin.
- the sensor unit has at least one receiver.
- the at least one receiver is designed to measure an electrical and/or magnetic signal from the skin. It is preferred that the receiver for, in particular measuring, receiving the signal emitted by the at least one transmitter is is trained.
- the sensor device also has a carrier device connected to the sensor unit. It is preferred that the carrier device is designed in one piece, also to be referred to as integral, with the at least one sensor unit.
- Each of the sensor units is preferably designed in one piece with the carrier device. It is possible that the at least one sensor unit is received by the carrier device, for example that the at least one sensor unit is embedded in the carrier device. It is also possible for the at least one sensor unit to be connected to the carrier device by means of a positive fit and/or material connection, in particular by means of gluing.
- the carrier device is preferably designed for arranging the sensor device on a skin that has the skin area to be detected.
- the sensor device is designed in such a way that the at least one sensor unit is insulated and/or spaced apart from the skin. In other words, it is preferred that the at least one sensor unit has no direct skin contact.
- the sensor device is preferably designed in such a way that the at least one sensor unit has indirect and/or indirect contact with the skin. It is possible here that the at least one sensor unit is insulated from the skin by a covering layer of the carrier device.
- the covering layer has, in particular, protective copper lacquer and/or plastic, for example foil and/or resin.
- the at least one sensor unit is preferably embedded in plastic, for example film and/or resin.
- the sensor unit is preferably embedded in the carrier device, which has or consists of such materials.
- the at least one sensor unit is coated with a protective copper lacquer.
- the at least one receiver and/or the at least one transmitter is in this case in particular insulated and/or spaced apart from the skin. It is preferred that the carrier device is designed in such a way that there is an equidistant distance between the transmitter and/or receiver of the at least one sensor unit and the skin.
- the insulation of the at least one sensor unit from the skin means that signals from the receiver and/or the transmitter are disrupted or distorted by skin contact, in a particularly advantageous manner.
- the receiver and/or the transmitter is designed as a coil, it is particularly advantageous that due to the lack of direct contact with the skin, magnetic fields generated by the coil(s) are neither disturbed nor distorted.
- the at least one sensor unit is designed in such a way that the transmitter and receiver are arranged gradiometric to the skin area to be detected.
- the at least one sensor unit is designed to be reflective with respect to the skin area to be detected.
- the transmitter and receiver of at least one sensor unit are preferably parallel to one another and/or parallel to the skin area to be detected.
- the transmitter and receiver of the at least one sensor unit and preferably also the skin area to be detected are preferably offset vertically from one another. It is also possible for the transmitter and receiver of the at least one sensor unit to lie coaxially with one another.
- the transmitter of the at least one sensor unit can lie within the receiver of this same sensor unit, or vice versa.
- the above arrangement of the transmitter and receiver is converted to one another by an arrangement of the transmitter and receiver on or in the carrier device.
- the transmitter and the receiver of the at least one sensor unit it is possible for the transmitter and the receiver of the at least one sensor unit to be arranged opposite one another on the carrier device, so that the skin area to be detected is covered by this opposite element of the sensor unit.
- a tomographic arrangement of the sensor unit relative to the skin area to be detected is preferred. In this way, it is advantageously possible to detect or measure the area of skin located between the transmitter and receiver of the at least one sensor unit.
- the sensor device is designed for differential measurement.
- At least one coil of the receiver is arranged at a specific angle, for example 45°, to at least one coil of the transmitter.
- a large transmitter coil and many smaller receiver coils it is possible for a large transmitter coil and many smaller receiver coils to be arranged in the vicinity of the transmitter coil. This arrangement can be concentric.
- a sensor array made up of many coils in the transmitter and many coils in the receiver is also possible.
- the carrier device has a film. It is preferred that the carrier device consists of a foil.
- the carrier film is in particular adhesive, preferably designed to be stuck to the skin.
- the sensor device is preferably implemented as a film sensor device, also to be referred to as a film sensor.
- the sensor device has a fixing device for arranging the sensor unit and/or the carrier device on the skin area to be detected. It is preferred here that the fixing device is adhesive, for adhesive connection to the skin. It is preferred that the fixing device can be separated from the sensor unit and/or the carrier device.
- the at least one transmitter and/or the at least one receiver has a magnet.
- the magnet is preferably an electric magnet, also called an electromagnet.
- the at least one transmitter and/or the at least one receiver consists of the magnet.
- the at least one transmitter preferably has a coil, preferably consists of it. If the transmitter has at least one coil, this is preferably a transmitter coil.
- the at least one receiver has a coil, preferably consists of it. If the receiver has at least one coil, this is preferably a receiver coil.
- the transmitter is preferably designed to emit a primary magnetic field, which is preferably a directed magnetic field. In particular, this primary magnetic field generates an eddy current in the skin, also known as eddy current (EC).
- EC eddy current
- This eddy current in the skin generates a secondary magnetic field which, according to Lenz's law, is preferably in the opposite direction to the primary field. It is preferred that the at least one receiver is designed to receive this secondary magnetic field.
- the received signal is dependent, in particular, on the dielectric, frequency-dependent electrical properties of the respective skin.
- the receiver it is preferable for the receiver to be dimensioned and/or designed in such a way that the signal from the transmitter is not detected. This dimensioning and/or design has the advantage that the signal from the transmitter does not dominate too much compared to the signal from the skin and the interesting signal from the skin is therefore not lost in the noise. It is possible, for example, for the transmitter coil and/or the receiver coil to be a coil that can transmit and receive signals, so that it is designed as a transmitter/receiver coil.
- the at least one sensor unit is designed for eddy current testing, also called EC testing, of the skin area to be detected. It is particularly preferred that the at least one sensor unit has, in particular consists of, an eddy current testing device, also known as an EC testing device.
- the at least one sensor unit preferably has a sensing coil, in particular consists of it.
- the sensor device is preferably an EC sensor device.
- a coil of the receiver of the at least one sensor unit is preferably arranged, in particular coaxially, within a coil of the transmitter of this at least one sensor unit. It is particularly preferred that the at least at least one sensor unit has at least, in particular exactly, two receiver coils and at least, in particular exactly, one transmitter coil, with the at least two receiver coils preferably being arranged coaxially within the at least one transmitter coil. In this arrangement with at least two receiver coils, it is preferable for the receiver coils to be switched against one another. In this case, it is then preferably not the induction voltage of a receiver coil that is measured, but rather the metrologically more sensitive difference between the receiver coil voltages.
- the transmitter of the at least one sensor unit is designed in such a way that it emits an alternating current, preferably in the ⁇ dispersion range.
- the transmitter emits electromagnetic fields under different frequencies and/or frequency ranges. It is therefore preferred to send electromagnetic fields of different frequencies with the transmitter and preferably to receive them with the receiver. Accordingly, it is implemented in a particularly advantageous manner that a frequency spectrum can be recovered from the tissue which is characteristic of the area to be examined. This is comparable to a specific fingerprint, for example.
- the receiver is preferably designed to receive different frequencies and/or frequency ranges.
- the sensor device particularly preferably the at least one sensor unit, is preferably designed in such a way that the impedance or the alternating current resistance of the skin area to be detected can be measured.
- the sensor device is therefore particularly preferably a bioimpedance spectroscopy device.
- the sensor device has at least one evaluation device for receiving and/or evaluating the acquired and/or measured data and/or a control device for controlling, in particular for introducing signals. It is preferred that receiver and transmitter the at least one sensor unit are connected to the evaluation device via cables and/or conductor tracks, in order to transmit data and/or power.
- the sensor device has a connection for connection to an evaluation device. The connection is particularly preferably designed to be connectable, so that the connection can be physically established and terminated.
- the sensor device can, for example. Via a connector system, z. B. SMA, be connected to the evaluation device.
- the senor device preferably the carrier device, has a communication device for, in particular external, communication. It is preferably a wireless communication device, so that the sensor device can communicate wirelessly, in particular with an evaluation device and/or a control device.
- the communication device is designed for communication by means of Bluetooth and/or Wifi and/or radio.
- the senor device preferably the carrier device, has an energy supply device.
- the energy supply device has a preferably chargeable battery, and preferably consists of it.
- the sensor device in particular the carrier device, is preferably designed to be essentially rectangular, in particular square or round, in particular circular, or oval. It is preferred that the sensor device, in particular the carrier device, has a maximum width of 100 millimeters, preferably a maximum of 10 millimeters. Alternatively or additionally, it is preferred that the sensor device, in particular the carrier device, has a maximum width of 100 millimeters, particularly preferably a maximum of 10 millimeters. On the other hand, the sensor device, in particular the carrier device, can essentially have a maximum circumference of 100 millimeters, particularly preferably a maximum of 10 millimeters. In a preferred embodiment, the sensor device has a plurality of sensor units, in particular at least four sensor units, with the sensor units preferably being arranged in an array.
- the sensor device has a marking device for marking the skin area to be detected. It is particularly preferred that the carrier device has the marking device.
- the marking device is preferably designed in such a way that it marks the skin area to be detected, preferably for a renewed arrangement of the sensor device on the skin area.
- the sensor device can have a color marking that is transferred to the skin after the sensor device has been placed on the skin, in particular for the first time, and thus marks the arrangement, for example “paints” an arrangement scope of the sensor device on the skin. It is also possible for the marking device to mark or identify the skin area to be detected optically, for example via laser guidance, or acoustically.
- the invention further relates to an application device for introducing an active substance into the skin.
- the application device according to the invention has an active ingredient delivery device.
- the active substance delivery device preferably has a microarray or an active substance patch, in particular it consists of them.
- the application device has a sensor device according to one or more of the features described above. It is preferred that the active ingredient delivery device is connected to the sensor device, in particular in one piece.
- the application device is designed in such a way that at least one of the receiver and the transmitter lies within the application area of the microarray and/or the application area of the micro-plaster. Alternatively or additionally, it is preferred that at least one of the receiver and transmitter is located outside the application area of the microarray or the application area of the active substance plaster.
- the application device is designed with a microarray, it is possible for the receiver, transmitter and microneedles of the microarray to be arranged next to one another and/or alternately, or for the sensor unit and microneedles to be arranged next to one another and/or alternately.
- the active ingredient delivery device of the application device has a microneedle carrier and/or a microneedle applicator. It is preferred here that the sensor device is connected to the microneedle carrier and/or the microneedle applicator, in particular is connected in one piece. It is preferred that the microneedle carrier is designed as in DE 10 2019200 555.8 A1 or as in DE 102019200561 A1. It is preferred that the microneedle applicator is designed as in DE 10 2019 200 563 A1 or DE 10 2019 200 557 A1 or DE 10 2019 122 948 A1 or DE 10 2020109563 A1.
- the invention also includes the use of a sensor device having one or more of the features described above and an application device having one or more of the features described above.
- the sensor or applicator device is used on a surface to be sensed to sense the properties of the surface.
- the sensor or application device is used on an area of skin for detecting properties of the area of skin, in particular for detecting an active substance in the area of skin.
- the sensor or application device is arranged multiple times, particularly preferably twice, on the surface to be detected in order to detect the properties. In particular, this arrangement takes place essentially in an identical position and/or in an identical orientation. It is thus implemented in a particularly advantageous manner that the identical surface area can be detected at different points in time and/or states and the different states can thus be compared with one another.
- the invention includes a method for detecting the properties of a surface area, in particular a skin area.
- the method according to the invention is carried out with a sensor device.
- the sensor device has at least one sensor unit with at least one receiver and at least one transmitter. It is preferable for the transmitter and/or the receiver to have a coil, in particular to consist of one.
- the method according to the invention has the steps described below, it being preferred that the steps take place in the order shown.
- a first step consists in arranging the at least one sensor unit on the skin having the skin area to be detected in order to detect the skin area to be detected. It is preferred that the at least one sensor unit is arranged on the skin as described above for the sensor device. Preferably, the at least one sensor unit is arranged gradiometrically and/or reflectively on the skin. On the other hand, a tomographic arrangement of the at least one sensor unit on the skin is possible.
- a second step of the method involves the introduction of a first electrical and/or magnetic signal to and/or into the skin area to be detected via the transmitter of the at least one sensor unit.
- the first signal has a primary magnetic field, in particular consists of it. It is preferred that the introduction of the first signal generates eddy currents in the skin area to be detected.
- the We belstroms preferably generate a secondary magnetic field in the skin area to be detected.
- a third step consists in the detection of a first resulting signal on the skin area to be detected via the receiver of the at least one sensor unit.
- the first resulting signal preferably has the eddy currents generated by the introduced first signal or the secondary magnetic field in the skin area to be detected, and in particular consists of it. It is preferable that the impedance of the skin area to be detected is measured.
- the difference in particular the phase difference and/or the amplitude difference, is then measured between the first introduced signal and the first resulting signal.
- the first measurement result it is preferable for the first measurement result to be recorded, based on this measurement.
- the at least one sensor unit has at least two receiver coils, it is preferable to measure the difference between the receiver coil voltages of these receiver coils.
- a second electrical and/or magnetic signal is introduced to and/or into the skin via the transmitter of the at least one sensor unit.
- the second signal is preferably essentially identical to the first signal. It is preferred that the fifth step is performed in accordance with one or more features of the second step described above.
- a preferred step six then includes detecting a second resultant signal at the skin via the receiver of the at least one sensor unit. It is preferred that the sixth step is performed in accordance with one or more features of the third step described above.
- the difference in particular the phase difference and/or the amplitude difference, is then measured between the second input signal and the second resulting signal, preferably for recording a second measurement result.
- a preferred eighth step comprises the evaluation of the measurements. It is particularly preferred here that the evaluation includes a comparison of the recorded measurement results, in particular the first and the second measurement result. In a preferred embodiment, in addition to the introduction, acquisition and measurement of a first and a second signal, any number of further signals can be introduced, acquired and/or measured.
- carrying out the second, third and fourth step together is a first impedance determination and/or carrying out the fifth, sixth and seventh step together is a second impedance determination. Further such impedance detections are then preferably possible.
- the method has a further step of removing the at least one sensor unit after the resulting signal, in particular the first resulting signal, has been detected.
- the step of rearranging the at least one sensor unit preferably also takes place before the next, in particular the second, electrical and/or magnetic signal is introduced. It is thus preferably implemented in that the at least one sensor unit is initially arranged on the skin and a first skin area detection is carried out. then the at least one sensor unit is preferably removed from the location to be detected. An initial state of the skin area to be detected can thus preferably be detected. It is then possible in particular to influence the skin area, for example by introducing an active substance, in particular by means of a microarray. It is then preferably possible to arrange the at least one sensor unit again, in particular in an identical position and/or in an identical manner, and then to record the skin area again in order to make a change in the skin properties after the action, in particular after the active substance has been introduced.
- the signals in particular the first and/or the second signal, are introduced over a period of approximately three seconds.
- the signal is introduced in two seconds, particularly preferably in one second.
- a period of time elapses between the detection of a resulting signal and the renewed introduction of a further signal.
- a period of time preferably elapses between an impedance detection and a further impedance detection. If more than two measurements are taken, in particular more than two impedance measurements, the periods of time in between can be equal, increasing or decreasing. For example, 0.25h; 0.5h; lh; 6h; 12h; 24 hours between multiple acquisitions. In this way, particularly advantageous information can be obtained about a rapid or slow release of an active substance in the skin area to be detected. This is of particular interest for microarray patches that dissolve quickly or slowly, e.g. have immediate or sustained release profiles.
- the invention also features a method of detecting drug delivery to an area of skin.
- This method includes the step of performing a method described above.
- the active ingredient is preferably introduced by means of microneedles or by means of an active ingredient patch. It is preferred that the active substance is introduced after the resulting signal has been detected, in particular after the first resulting signal has been detected.
- the active substance it is also possible for the active substance to be introduced before the method described above for detecting the properties of a surface region is carried out.
- the above-described method for detecting the properties of a surface area, in particular a skin area, and/or the above-described method for detecting the introduction of active substance into a skin area takes place by means of an above-described sensor device or an above-described application device.
- the sensor device it is not necessary here for the sensor device to have a carrier device when the method is carried out.
- the sensor device can have one or more features of the sensor device described above, independently of the carrier device.
- the device(s) and/or method(s) according to the invention is/are implemented particularly advantageously in the evaluation of microarray applications: On the one hand, feedback on the application can be obtained since the impedance of the skin changes after penetration by needles; on the other hand, one has information about the active ingredient distribution under the skin and thus feedback about the efficiency of the microarray delivery.
- FIG. 1 shows a schematic plan view of a sensor device according to the invention
- FIG. 2 shows a schematic representation of an embodiment of the sensor device according to the invention in use
- FIG. 3 and 4 schematic plan views of further inventive embodiments of a sensor device
- FIG. 5 shows a schematic plan view of an embodiment of an application device according to the invention
- FIG. 6 and 7 schematic, sectional side views of further embodiments of a sensor device according to the invention.
- FIG. 8 shows a schematic, sectional side view of a further embodiment of an application device according to the invention.
- Figs. 9a and 9b a schematic, sectional side view of a further embodiment of an application device according to the invention in two states
- FIG. 10 and 11 schematic sectional views of further embodiments of an application device according to the invention
- Fig. 12 is a schematic representation of the invention
- Fig. 1 schematically shows a plan view of the underside of a sensor device 10 according to the invention.
- the sensor device 10 has a carrier device 20, which is designed here as a flexible film 22, so that it can be applied, in particular over the entire surface, to a, for example, tortuous part of the body. It is preferred that the underside of the film 22 shown has an adhesive surface 23, this being achieved in particular by means of adhesive on the film.
- the sensor device 10 has a sensor unit 13 on the underside of the sensor device 10 shown.
- the sensor unit 13 has a transmitter 14 and a receiver 18 located opposite.
- the transmitter 14 shown below is a transmitter coil 14.
- the receiver 18 shown above is a receiver coil 18.
- a transmitter coil and/or a receiver coil around a Coil is that can send and receive signals, so that it is designed as a transmitter / receiver coil.
- Located between the coils 14, 18 is the skin area 12 to be detected, which is shown here by the dashed area 12 as an example.
- a tomographic version of the sensor unit 13 is shown.
- the transmitter coil 14 emits a signal, shown by way of example via the arrows 16 .
- the signal is emitted in particular to the skin area 12 to be detected, on which the sensor device 10 is arranged.
- the emitted signal is in particular an electrical and/or magnetic signal. It is particularly preferred that it is a magnetic field. It is preferred that the transmitter coil 14 emits an alternating current. The receiver coil 18 receives a signal resulting from the emitted signal 16 Sig. It is particularly preferred that the impedance is determined by means of the transmitted and received signals.
- the coils 14, 18 are connected to cables 32, for example for data and/or signal and/or power transmission, which are preferably conductor tracks. A connection to a connection 34 with contacts 36 is made possible via the cables 32 . It is preferred that the connection 34 is located on the opposite, not shown, front side of the sensor device 10 . It is preferred that the receiver coil 18 and the transmitter coil 14 lie within the carrier device 20 and therefore have no direct skin contact.
- Be particularly preferably receiver coil 18 and transmitter coil 14 are enclosed by the carrier device. Communication, for example with an evaluation device (see, for example, FIG. 2), is possible via the preferably external connection 34 .
- the sensor device 10, in particular the carrier device 20 to have a wireless communication device (not shown), for example for wireless communication with an evaluation device.
- the Sensor device 10, in particular the carrier device 20 have a preferably rechargeable battery.
- the battery is a rechargeable battery.
- FIG. 2 schematically shows the use of a sensor device 10 according to the invention on a skin area 12, shown here an arm area 44. It is preferred that the sensor device 10 from FIG. 2 is designed based on the sensor device 10 from FIG.
- the underside of the film 22 is arranged, in particular adhesively, on the skin area 12 of the arm 44 to be detected.
- the property of the skin area 12 can be determined via the signals emitted and accordingly detected as a result at the receiver coil 18, in particular via the determined impedance.
- An evaluation device 30 can be connected via the connection 34 for current and/or data-transmitting communication.
- the connection is preferably made via the contacts 36 of the connection 34 and the contacts 42 of the corresponding connection 40 of the evaluation device 30.
- the evaluation device 30 and connection 40 of the evaluation device 30 are connected via a cable 38.
- FIG. 3 shows a further embodiment of a sensor device 10 according to the invention.
- the sensor device 10 from FIG. 3 essentially corresponds to the embodiment of the sensor device 10 from FIG.
- the marking device 46 is shown as a colored marking arranged on the outer edge of the film 22 . This color marking is preferably designed in such a way that when the sensor device 10 is arranged on a skin area, a color marking is transferred to the skin area. To If sensor device 10 is removed, sensor device 10 can be arranged identically on the same area of skin due to the template-like marking when sensor device 10 is arranged again.
- Fig. 4 shows a further embodiment of a sensor device 10 according to the invention.
- the sensor device 10 from Fig. 4 is based on the embodiment of the sensor device 10 from Fig. 1.
- the sensor unit 13 in Fig. 4 not tomographic, but reflective.
- Transmitter coil 14 and receiver coil 18 of sensor unit 13 are arranged coaxially within carrier device 20 .
- the transmitter coil 14 emits a primary magnetic field.
- the primary magnetic field generates 12 eddy currents in the skin area to be grasped.
- the eddy currents preferably produce a secondary magnetic field which can be detected by the receiver coil 18 .
- transmitter coil 14 and receiver coil 18 it is also possible, for example, to arrange transmitter coil 14 and receiver coil 18 in parallel, so that preferably skin area 12 to be detected is parallel under receiver coil 18, and receiver coil 18 is parallel under transmitter coil 14.
- Fig. 5 shows an embodiment of an application device 100 according to the invention.
- the microarray 104 has a plurality of microneedles 110 .
- the film 22 thus essentially represents the carrier device for the coils 14a-14d, 18a-18d and a microarray patch for the microarray 104.
- the property of the skin area in between can be detected, this skin area being influenced in particular due to the action of the microarray 104.
- FIG. 5 is again a tomographic sensor device 10.
- the coils 14a-14d and 18a-18d can be scanning coils and thus a non-tomographic arrangement is implemented.
- FIG. 6 schematically shows a further embodiment of a sensor device 10 according to the invention in a sectional side view.
- the sensor device in particular the sensor unit 13, is arranged reflectively to a skin area 12 of a person's skin 48 to be detected.
- the transmitter coil 14 emits a primary magnetic field 16'.
- the primary magnetic field 16' generates eddy currents 16" in the skin area 12 to be detected.
- the eddy currents 16" generate a secondary magnetic field 16'", which can be detected by the receiver coil 18.
- FIG. 7 schematically shows a further embodiment of a sensor device 10 according to the invention in a sectional side view, which essentially corresponds to the embodiment from FIG.
- the transmitter coil 14 and receiver coil 18 are not arranged parallel one above the other, but are arranged coaxially.
- the receiver coil 18 is in this case arranged within the coil 14 Sen.
- Fig. 8 shows a schematic, sectional side view of an embodiment of an application device 100 according to the invention with an embodiment form of a sensor device 10 according to the invention.
- the design of the sensor device 10 essentially corresponds to the design from FIG.
- the microarray carrier 106 is connected to the carrier device 20 of the sensor device 10, preferably in one piece.
- the initial state of the skin area 12 can be detected with the sensor device 10.
- a change can then be measured by at least one renewed detection of the skin area 12 with the sensor device 10.
- Figs. 9a, 9b show a schematic sectional side view of another embodiment of an application device 100 according to the invention with an embodiment of a sensor device 10 according to the invention.
- the sensor device essentially corresponds to the sensor device 10 from FIG. 8.
- the application device 100 is based on the application device 100 from FIG.
- the embodiment from FIGS. 9a, 9b has a microneedle applicator 108 in which the microarray carrier 106 is movably arranged for application of the microarray 104.
- the microarray carrier 106 or the microarray 104 is in the non-applied state (top).
- the microarray 104 is applied in the skin area 12 (downward).
- the skin area 12 can be detected by means of a sensor device 10 before, during and/or after the application.
- FIG. 10 shows an embodiment according to the invention of an application device 100 with an active ingredient delivery device 102 which has a microarray 104 and a microneedle carrier 106 carrying the microarray 104 .
- Micro-needle carriers 106 and/or micro-array 104 are in this case designed in particular as disclosed in DE 10 2019 200 558 A1.
- the sensor unit 13 of the sensor device 10 is in this case connected to the microneedle carrier 106, preferably in one piece.
- the sensor unit 13 is arranged in particular within the microneedle carrier 106 .
- FIG. 11 shows an embodiment of an application device 100 according to the invention.
- a sensor device 10 according to the invention is here integrated into a microneedle applicator 108 . It is preferably the microneedle carrier from DE 10 2019 200 558 A1. If the microneedle applicator 108 is arranged on the skin, a skin area can be detected via the sensor device 10 . Based on the embodiment from FIG. 10, this is possible before and after an application.
- the sensor device 10 has a plurality of sensor units 13 .
- FIG. 12 schematically shows an embodiment of the method according to the invention for detecting the properties of a skin area as part of an embodiment of a method according to the invention for detecting the introduction of an active substance into a skin area.
- FIG. 1 shows the arrangement of a sensor device 10 on a skin area 12 to be detected. This preferably makes it possible to detect the initial state of the skin.
- II shows the introduction of the active substance into the skin area 12 by means of a microarray 104.
- the sensor device 10 shown in I was removed from the skin area. It is preferably possible here that the first application (I) of the sensor device 10 has left a colored mark 47 on the skin area.
- the property of the skin area 12 to be detected can thus be detected by means of the sensor device 10 before an active substance is introduced (I) and after an active substance is introduced (III). It is advantageously possible here to carry out an evaluation of the active substance introduced, in particular by means of a microarray 104 .
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Pathology (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- Dermatology (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Radiology & Medical Imaging (AREA)
- Optics & Photonics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020131377.2A DE102020131377A1 (de) | 2020-11-26 | 2020-11-26 | Sensorvorrichtung, Verwendung einer Sensorvorrichtung und Verfahren zur Erfassung der Eigenschaften eines Hautbereichs |
| PCT/EP2021/082573 WO2022112197A1 (de) | 2020-11-26 | 2021-11-23 | Sensorvorrichtung, verwendung einer sensorvorrichtung und verfahren zur erfassung der eigenschaften eines hautbereichs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4251044A1 true EP4251044A1 (de) | 2023-10-04 |
Family
ID=78819535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21816046.3A Pending EP4251044A1 (de) | 2020-11-26 | 2021-11-23 | Sensorvorrichtung, verwendung einer sensorvorrichtung und verfahren zur erfassung der eigenschaften eines hautbereichs |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20240024648A1 (de) |
| EP (1) | EP4251044A1 (de) |
| JP (1) | JP2023551680A (de) |
| CN (1) | CN116437850A (de) |
| CA (1) | CA3198743A1 (de) |
| DE (1) | DE102020131377A1 (de) |
| WO (1) | WO2022112197A1 (de) |
Citations (1)
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|---|---|---|---|---|
| US20200082926A1 (en) * | 2018-09-12 | 2020-03-12 | California Institute Of Technology | Wearable Inductive Damping Sensor |
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| FR2551873B1 (fr) * | 1983-09-13 | 1986-02-21 | Oreal | Appareil de mesure " in vivo " des caracteristiques visco-elastiques de la peau |
| US4819648A (en) * | 1985-10-28 | 1989-04-11 | The Johns Hopkins University | Non-invasive electromagnetic technique for monitoring time-trends of physiological changes at a particular location in the brain |
| US6120460A (en) * | 1996-09-04 | 2000-09-19 | Abreu; Marcio Marc | Method and apparatus for signal acquisition, processing and transmission for evaluation of bodily functions |
| US5830139A (en) * | 1996-09-04 | 1998-11-03 | Abreu; Marcio M. | Tonometer system for measuring intraocular pressure by applanation and/or indentation |
| WO2003059164A2 (en) * | 2002-01-15 | 2003-07-24 | Orsan Medical Equipment Ltd. | Device for monitoring blood flow to brain |
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| JP2009506855A (ja) * | 2005-09-07 | 2009-02-19 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 導電性組織の生体インピーダンスを誘導的に測定するためのシステム及び方法 |
| EP1962672A2 (de) | 2005-12-16 | 2008-09-03 | Bayer Healthcare, LLC | Nicht invasive in-vivo bioelektroimpedanzanalyse von glucose-vermitteltem gewebe |
| WO2010093479A2 (en) | 2009-02-13 | 2010-08-19 | The Ohio State University Research Foundation | Electromagnetic system and method |
| US20120130207A1 (en) | 2009-04-29 | 2012-05-24 | Janisys Limited | micro-needle device and apparatus and a method for applying a micro-needle element to a site on the skin of a subject |
| JP5784031B2 (ja) * | 2009-10-30 | 2015-09-24 | セブンス センス バイオシステムズ,インコーポレーテッド | 皮膚に適用される比較的小型のデバイス、モジュラーシステム、およびその使用方法 |
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| ITMI20130104A1 (it) * | 2013-01-24 | 2014-07-25 | Empatica Srl | Dispositivo, sistema e metodo per la rilevazione e il trattamento di segnali di battito cardiaco |
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-
2020
- 2020-11-26 DE DE102020131377.2A patent/DE102020131377A1/de active Pending
-
2021
- 2021-11-23 JP JP2023532428A patent/JP2023551680A/ja active Pending
- 2021-11-23 CA CA3198743A patent/CA3198743A1/en active Pending
- 2021-11-23 EP EP21816046.3A patent/EP4251044A1/de active Pending
- 2021-11-23 CN CN202180076209.4A patent/CN116437850A/zh active Pending
- 2021-11-23 WO PCT/EP2021/082573 patent/WO2022112197A1/de not_active Ceased
- 2021-11-23 US US18/038,829 patent/US20240024648A1/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200082926A1 (en) * | 2018-09-12 | 2020-03-12 | California Institute Of Technology | Wearable Inductive Damping Sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CA3198743A1 (en) | 2022-06-02 |
| CN116437850A (zh) | 2023-07-14 |
| US20240024648A1 (en) | 2024-01-25 |
| JP2023551680A (ja) | 2023-12-12 |
| DE102020131377A1 (de) | 2022-06-02 |
| WO2022112197A1 (de) | 2022-06-02 |
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