EP4387702A1 - Mikronadelvorrichtung und verfahren zur erfassung mindestens einer auf ein mikronadelarrays wirkenden kraft - Google Patents
Mikronadelvorrichtung und verfahren zur erfassung mindestens einer auf ein mikronadelarrays wirkenden kraftInfo
- Publication number
- EP4387702A1 EP4387702A1 EP22757538.8A EP22757538A EP4387702A1 EP 4387702 A1 EP4387702 A1 EP 4387702A1 EP 22757538 A EP22757538 A EP 22757538A EP 4387702 A1 EP4387702 A1 EP 4387702A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- microneedle
- force
- application
- microneedle array
- sensor
- 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
- 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
- A61M2205/332—Force measuring means
Definitions
- the invention relates to a microneedle device and a method for detecting at least one force acting on a microneedle array.
- 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 microneedle arrays 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 appropriate agent may be attached to a surface of the needles or placed within the needles. It is preferred that the needles are made of a skin soluble material.
- microneedle array For the successful application of a microneedle array, in particular for successful medication with microneedle arrays, it is crucial that a correct insertion of the microneedle array into the desired skin layer. Of particular importance here is that a sufficient insertion depth is achieved during application.
- microneedle arrays Another factor for the successful application of microneedle arrays is the application time.
- a sufficiently long-lasting application must take place in order to release the active ingredient.
- the combination of insertion depth and application duration is decisive, in other words whether the application has been carried out for a sufficiently long time with sufficient insertion depth.
- the object of the invention is to create a microneedle device and a method, with improved testing of the application made of a microneedle array being possible.
- the microneedle device according to the invention is in particular a microneedle device to be applied manually.
- Manually means here preferably that the microneedle array of the microneedle device can be applied manually by a user, in particular by means of one or more fingers or the hand.
- the microneedle device is preferably designed for application by means of a user's thumb. It is therefore preferred that no application device, in particular one that uses force, is necessary for the application.
- the microneedle device can alternatively be a microneedle device to be applied by means of an application device, in particular one that uses force.
- the microneedle device includes a microneedle array.
- the microneedle array has multiple microneedles.
- the microneedles have a cone, pyramid or obelisk shape.
- the microneedles are connected to a carrier element, such as a patch, preferably in one piece.
- the microneedle device has a sensor device connected to the microneedle array, for example adhesively.
- the sensor device is directly or indirectly connected to the microneedle array.
- the sensor device is preferably connected to the side opposite the tips of the microneedles, also referred to as the rear side.
- the sensor device is preferably connected, in particular directly, to the carrier element.
- the sensor device is designed to detect at least one force acting on the microneedle array.
- the sensor device is preferably designed to detect at least one force acting essentially perpendicularly to the microneedle array. Alternatively or in addition to the force to be detected, the sensor device is designed to detect at least one pressure acting on the microneedle array. It is preferred that the sensor device is designed to measure the at least one force acting on the microneedle array, so that, in particular, there is a measuring detection of forces of different magnitudes.
- the sensor device measures the at least one force in particular as a value with the unit of measure N (Newton) or Pa (Pascal).
- Sensor device and microneedle array are preferably force-fitting and/or form-fitting and/or bonded to one another.
- the microneedle device has a processing device for evaluating the at least one detected force.
- the processing device has in particular a processor.
- the processing device is preferably connected to the sensor device, in particular in an information-transmitting manner.
- the connection between the processing device and the sensor device is preferably wired and/or wireless, for example using Bluetooth or Wifi. It is possible that the processing device is part of a mobile device, such as a smartphone.
- the processing device is set up to record the application force over time and preferably to compare it with a target value.
- the processing device is set up in particular to detect when the detected force has reached the target force and/or when the application time has reached the target time, it being preferable for the target force to be reached over the target time period to be recorded.
- the target force has been reached over the period of the target time if the detected force corresponds at least to the target force over a period of time up to the target time, in particular up to at least the target time.
- the setpoint force is reached over the period of the setpoint time if the detected force occurs in a single time interval, ie in one piece; or overall, ie over a total period of time, corresponds to the target force at least until the target time is reached.
- the processing device is set up to record the detected forces and/or times. It is preferred that the processing device is designed to compare the application force with the counterforce. As a result, it is advantageously possible, for example, to include skin-specific features.
- the processing device is preferably set up to define the target force for the application force as a function of the counterforce.
- the microneedle device has an, in particular, acoustic and/or optical and/or haptic feedback device for transmitting, preferably for delivering, the feedback.
- the feedback device can, for example, have a lighting device, such as an LED, and/or have a loudspeaker.
- the feedback device can, for example, also have an actuator, such as a vibration element.
- the feedback device is designed to provide feedback in the event of successful and/or unsuccessful application. In particular, a different feedback is given in the case of a successful application than in the case of an unsuccessful application.
- the feedback device is preferably connected to the processing device, in particular in an information-transmitting manner.
- the connection between the processing device and the feedback device is preferably wired and/or wireless, for example using Bluetooth or Wifi. It is possible that the feedback device is part of a mobile device, such as a smartphone.
- the disclosure relates to a method for detecting at least one force acting on a microneedle array by means of a sensor device connected to the microneedle array.
- the force recorded is in particular an application force, preferably a manual application force of a user, and/or a counterforce on the microneedle array.
- the method for applying a microneedle array is carried out by means of a microneedle device with one or more of the features of the microneedle device described above.
- FIG. 1 shows a schematic, sectional side view of an embodiment of a microneedle device according to the invention during application
- FIG. 2 shows a schematic, sectional side view of a further embodiment of a microneedle device according to the invention
- FIG. 4 shows a schematic, sectional side view of a further embodiment of a microneedle device according to the invention.
- the microneedle device 10 has a microneedle array 12, which has a carrier element 20, such as a patch, with a plurality of microneedles 22 connected thereto, in particular in one piece.
- the microneedle device 10 is shown being applied by the thumb 102 of the hand 100 of a user, such as a patient or medical worker, into the skin 104, such as a patient.
- an application force (represented by arrow 24 ) is applied to an application surface 38 of the microneedle device 10 by means of the thumb 102 and the microneedles 22 are thus introduced into the skin 104 .
- the application force 24 can, for example, be applied over a period of time, so that the microneedle array 12 is pressed further.
- the application force 24 can be detected, in particular measured, by the force sensor 16 .
- the skin 104 acts with an opposing force (represented by arrow 26) on the Microneedle array 12 against the introduction.
- the counterforce 26 when the Thumb 102 is removed, the counterforce 26 in particular finally predominates.
- the counterforce 26 is particularly dependent on the respective skin 104 provided for the application.
- the sensor device 14 with the two force sensors 16', 16" can preferably be used to control the application force 24 and the counterforce 26 An optimal evaluation and/or adaptation of the application can thus be carried out.
- the processing device 28 is designed in particular to evaluate the recorded values of the force sensors 16', 16''.
- the feedback device 30 can have, for example, a lamp, such as an LED, and/or a loudspeaker and/or an actuator, such as a vibration element.
- a wireless connection such as a Wifi and/or Bluetooth connection possible.
- the processing device 28 and the feedback device 30 are integrated into the sensor device 14 in the embodiment from FIG. 3 with an external processing device 28 and feedback device 30, the processing device 28 and the feedback device 30 are integrated into the sensor device 14 in the embodiment from FIG. 3
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dermatology (AREA)
- Medical Informatics (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021121528.5A DE102021121528A1 (de) | 2021-08-19 | 2021-08-19 | Mikronadelvorrichtung und Verfahren zur Erfassung mindestens einer auf ein Mikronadelarrays wirkenden Kraft |
| PCT/EP2022/070788 WO2023020785A1 (de) | 2021-08-19 | 2022-07-25 | Mikronadelvorrichtung und verfahren zur erfassung mindestens einer auf ein mikronadelarrays wirkenden kraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4387702A1 true EP4387702A1 (de) | 2024-06-26 |
Family
ID=83004930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22757538.8A Pending EP4387702A1 (de) | 2021-08-19 | 2022-07-25 | Mikronadelvorrichtung und verfahren zur erfassung mindestens einer auf ein mikronadelarrays wirkenden kraft |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20250121167A1 (de) |
| EP (1) | EP4387702A1 (de) |
| JP (1) | JP2024529166A (de) |
| CN (1) | CN117750993A (de) |
| CA (1) | CA3226255A1 (de) |
| DE (1) | DE102021121528A1 (de) |
| WO (1) | WO2023020785A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025015434A1 (en) * | 2023-07-14 | 2025-01-23 | L'oreal | Control of microneedle penetration distance and force with an acoustic oscillator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005094526A2 (en) * | 2004-03-24 | 2005-10-13 | Corium International, Inc. | Transdermal delivery device |
| US10035008B2 (en) | 2005-04-07 | 2018-07-31 | 3M Innovative Properties Company | System and method for tool feedback sensing |
| CA2925333C (en) * | 2013-09-30 | 2021-09-07 | Georgia Tech Research Corporation | Microneedle patches, systems, and methods |
| DE102014201605A1 (de) | 2014-01-30 | 2015-07-30 | Robert Bosch Gmbh | Medizinisches Pflaster |
| CN108744261B (zh) * | 2018-06-29 | 2023-12-26 | 优微(珠海)生物科技有限公司 | 一种可溶性微针贴片给药装置 |
-
2021
- 2021-08-19 DE DE102021121528.5A patent/DE102021121528A1/de active Pending
-
2022
- 2022-07-25 EP EP22757538.8A patent/EP4387702A1/de active Pending
- 2022-07-25 CA CA3226255A patent/CA3226255A1/en active Pending
- 2022-07-25 CN CN202280051431.3A patent/CN117750993A/zh active Pending
- 2022-07-25 WO PCT/EP2022/070788 patent/WO2023020785A1/de not_active Ceased
- 2022-07-25 JP JP2024508791A patent/JP2024529166A/ja active Pending
- 2022-07-25 US US18/683,548 patent/US20250121167A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023020785A1 (de) | 2023-02-23 |
| CN117750993A (zh) | 2024-03-22 |
| US20250121167A1 (en) | 2025-04-17 |
| DE102021121528A1 (de) | 2023-02-23 |
| JP2024529166A (ja) | 2024-08-01 |
| CA3226255A1 (en) | 2023-02-23 |
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