US20140012094A1 - Wearable patch comprising multiple separable adhesive layers - Google Patents

Abstract

Wearable patches comprising multiple separable adhesive layers. One or more of the layers can comprise electronics, mechanical components, gauze, medicine and/or other types of hardware suitable for the intended use of the patch. In use, a first layer of the patch is adhered to a user. When it is time to change layers, the patch is removed from the user, the first layer is removed from the patch to expose a second adhesive layer, and the second layer is applied to the user. The process may be repeated until the remaining layers of the patch have been used.

Description

CROSS REFERENCE TO RELATED APPLICATIONS
• This application claims priority from U.S. Provisional Application Ser. No. 61/699,790 filed Sep. 11, 2012, the entirety of which is incorporated herein by reference.
FIELD OF THE INVENTION
• Embodiments of the invention relate to wearable patches comprising multiple separable adhesive layers.
BACKGROUND
• Patches that adhere to a person's body are being used for several purposes in today's society. The configuration and use of the patch often depends upon its intended purpose. For example, a patch comprising gauze or other material can be applied to a person to cover a wound and prevent infection (i.e., it is being used as an adhesive bandage). A patch that contains medicine or other substances can be applied to a person to treat a wound or an addiction (e.g., a nicotine patch), or to counteract e.g., sea sickness. Other patches can include electronics such as sensors or integrated circuits to monitor e.g., a person's health or response to physical activity. These patches can also include communication circuitry for communicating data from the patch to an external source.
• All of these patches, however, have their shortcomings. For example, single wearable adhesive bandages must be changed frequently, especially if they get wet. In addition, these bandages are contained within individual packaging that must be opened and discarded before the bandage can even be used. Thus, these patches produce packaging waste and are inconvenient for the user because he/she must carry or have access to multiple bandages if they want to properly cover a wound, etc.
• Patches that include electronics have additional problems. For example, a single wearable adhesive patch having electronics or other hardware would be used once and discarded, causing all of its electronics/hardware to be discarded even if they are still functional. As can be appreciated, this can be wasteful and expensive, raising the cost of the patches (for both the manufacturer and consumer). To avoid wasting expensive components, and to reduce costs, these patches will sometimes use inferior components that could malfunction, provide low power for its circuitry, and/or low memory storage capacity—all of which are undesirable. Moreover, with single disposable patches, the equipment loses the ability to record/use data from, or share data with, other patches used on the same user, which is also desirable.
• Accordingly, there is a need and desire for a better wearable adhesive patch.
SUMMARY
• Embodiments disclosed herein provide a wearable patch comprising multiple separable adhesive layers. By stacking multiple layers on top of each other, the same patch can used, removed (e.g., when the user takes a shower or goes swimming) and reapplied without affecting its adhesion to the user (i.e., another adhesive layer can be applied to the user when needed).
• One or more of the layers can comprise electronics, mechanical components, gauze, medicine and/or other types of hardware or other substances suitable for the intended use of the patch. In use, a first adhesive layer of the patch is adhered to a user. When it is time to change layers, the patch is removed from the user, the first adhesive layer is removed from the patch to expose a second adhesive layer, and the second adhesive layer is applied to the user. The process may be repeated until the remaining adhesive layers of the patch have been used.
• If the adhesive layers contain electronics, data can be passed through the layers to a main processing circuit and memory contained in e.g., a top adhesive layer. This way, the patch has the ability to record/use data from, or share data with, other layers throughout the use of the patch. In addition, the layers can be powered by a single power source in the top adhesive layer or by individual power sources in each layer. Moreover, more expensive and better quality components can be used in the top layer, while disposable components can be used in the lower layers; providing better functionality of the patch circuitry while also reducing its cost because the relatively expensive hardware (that would have been disposed of with each use of a single use patch) is preserved until the lifetime of the multi-layer patch has expired (i.e., all of the layers are used).
BRIEF DESCRIPTION OF THE DRAWING
• FIG. 1 illustrates an example wearable patch comprising multiple separable adhesive layers in accordance with an embodiment disclosed herein.
• FIG. 2 illustrates another example of a wearable patch comprising multiple separable adhesive layers in accordance with another embodiment disclosed herein.
DETAILED DESCRIPTION
• In the following detailed description, a plurality of specific details, such as types of materials and dimensions, are set forth in order to provide a thorough understanding of the preferred embodiments discussed below. The details discussed in connection with the preferred embodiments should not be understood to limit the claimed invention. Furthermore, for ease of understanding, certain method steps are delineated as separate steps; however, these steps should not be construed as necessarily distinct nor order dependent in their performance.
• FIG. 1 illustrates anexample wearable patch10 comprising multiple separable adhesivelower layers12a,12b,12cand atop layer14 in accordance with an embodiment disclosed herein. In the illustrated embodiment, there are threelower layers12a,12b,12cand atop layer14. It should be appreciated that any number of layers can be used and that the disclosed embodiment should not be limited to the number of layers illustrated inFIG. 1. Thepatch10 can include as many layers that are practical for the application (e.g., three-day, seven-day, thirty-day patch, etc.). For example, a three-day patch could comprise three separatelower layers12a,12b,12c,one for each day, and atop layer14 to e.g., protect the adhesiveness of thelower layers12a,12b,12c.If thetop layer14 is constructed the same as the lower layers, then the three-day patch could comprise only twolower layers12a,12bfor days one and two and thetop layer14 for day three.
• Eachlower layer12a,12b,12ccomprises asubstrate22 having anadhesive20 formed on one surface. Thetop layer14 also comprises asubstrate26 having an adhesive24 formed on one surface. In one embodiment, when thepatch10 will be applied to a person's body, thesubstrates22,26 comprise white polyethylene foam such as e.g., 1/16″, 4# cross linked polyethylene foam. Similarly, when thepatch10 will be applied to a person's body, thesubstrates22,26 are coated with an adhesive20,24 such as e.g., an aggressive medical grade pressure-sensitive adhesive (e.g., MA-46 acrylic medical grade adhesive). Although not shown, the adhesive side of one or more layers in thepatch10 may be protected by a liner or release paper such as e.g., a siliconized polycoated release paper (e.g., 84# siliconized polycoated Kraft release paper). The adhesive side of one or more layers in thepatch10 may include the liner, release paper or some other substance that provides quick/easy release/removability of the layer from thepatch10. It should be appreciated that less than all layers may have a liner, release paper, etc. It should be appreciated that the embodiments are not limited to the type of substrate, adhesive or liner (if used) discussed herein and that any suitable substrate, adhesive or liner may be used to form thepatch10.
• Although not shown, thesubstrates22,26 can comprise gauze (e.g., thepatch10 is intended to be used as a bandage), medicine (e.g., thepatch10 is intended to be used to apply medicine to treat a wound, infection or a patient's addiction) and/or another substance. An embodiment of apatch110 that includes electronics or other hardware is discussed below with reference toFIG. 2. In one embodiment, thetop layer14 can comprise a durable coating to provide more protection (e.g., water-proofing) for theother layers12a,12b,12c.It should be appreciated, however, thatlower layers12a,12b,12care protected by the layers above them in the stack oflayers12a,12b,12c,14 and that the durable coating (or other coating) would be providing additional protection. Additionally or alternatively, thetop layer14 can contain a design and/or colors rendering thepatch10 esthetically pleasing to the user and others. For example, thepatch10 can be viewed as a tattoo or other form of body art. Additionally or alternatively, thetop layer14 can comprise padding or another suitable substance to provide protection/comfort to the user in case contact is made to the outside of thepatch10. In addition, although not shown, thesubstrates22,26 can include a tab or other component to help the user separate thelayers12a,12b,12c,14 from each other when it is time to remove a layer and/or thepatch10.
• In use, the patch10 (e.g., a 7-day patch) is removed from its packaging and adhered to the user at the desired location. If thelower layer12aincludes a liner, the liner would be removed before thepatch10 is adhered to the user. After the first intended use of thelayer12a(e.g., after day one, before a shower, etc.), theentire patch10 is removed, thebottom layer12ais peeled off and disposed of. The remaininglayers12b,12c,14 of thepatch10 should still have fresh adhesive because they are protected by each other and thesubstrate26 of thetop layer14. Thepatch10 can then be re-adhered to the desired location on the user using the next available adhesive layer (e.g.,12b). This process is repeated for each intended use of the patch. When last usable layer is used, it can be peeled off and disposed of.
• As can be appreciated, stacking multiple adhesive layers in onepatch10 creates more convenient user experience and less packaging in comparison to today's wearable patches. In the illustrated embodiment, thepatch10 comprises threelower layers12a,12b,12cand atop layer14. Existing patches would require four separate packages, creating packaging waste and placing the burden on the user to carry or have access to multiple individual packages.
• Although thepatch10 is advantageously used as a bandage or other type of patch applied to a person's body, thepatch10 illustrated inFIG. 1 can be used in many other ways. As such, the illustratedpatch10 is not limited solely to medical use (e.g., bandages, etc.) and/or application to a person's body. For example, thepatch10 can be used as a multiple layer adhesive tape to cover something or hold two or more items together. This would be useful for situations in which the adhesive wears off and a new adhesive tape of the same/similar size is needed.
• FIG. 2 illustrates an example wearable patch comprising multiple separable adhesivelower layers112a,112b,112cand atop layer114 in accordance with an embodiment disclosed herein. In the illustrated embodiment, there are threelower layers112a,112b,112cand atop layer114. It should be appreciated that, like thepatch10 illustrated inFIG. 1, any number of layers can be used inpatch110 and that the disclosed embodiment should not be limited to the number of layers illustrated inFIG. 2.
• Eachlower layer112a,112b,112ccomprises asubstrate122 having an adhesive120 formed on one surface. Thetop layer114 also comprises asubstrate126 having an adhesive124 formed on one surface. Although not shown, the adhesive side of one or more layers in thepatch110 is preferably protected by a liner or release paper. The adhesive side of one or more layers in thepatch110 may include the liner, release paper or some other substance that provides quick/easy release/removability of the layer from thepatch110. It should be appreciated that less than all layers may have a liner, release paper, etc. It should be appreciated that the materials used for thesubstrates122,126,adhesives120,124 and release paper can be the same as the materials used for thepatch10 illustrated inFIG. 1. It should also be appreciated that the disclosed embodiments are not limited to the type of substrate, adhesive or liner (if used) discussed herein and that any suitable substrate, adhesive or liner may be used to form thepatch110.
• In one embodiment, thetop layer114 can comprise a durable coating to provide more protection (e.g., water-proofing) for theother layers112a,112b,112c.Additionally or alternatively, thetop layer114 can contain a design and/or colors rendering thepatch110 esthetically pleasing to the user and others. Additionally or alternatively, thetop layer114 can comprise padding or another suitable substance to provide protection/comfort to the user in case contact is made to the outside of thepatch110. In addition, although not shown, thesubstrates122,126 can include a tab or other component to help the user separate thelayers112a,112b,112c,114 from each other when it is time to remove a layer and/or thepatch10.
• As can be seen inFIG. 2, the various layers of thepatch110 include electrical devices (e.g., sensors, microphones, accelerometers) that interface with and/or monitor activity of the person thepatch110 is being applied to; as such, thepatch110 is suitable for use in monitoring e.g., a person's health, sleep patterns or response to physical activity (example uses of thepatch110 and its electronics are discussed below). In addition, thepatch110 could include electronics and components so that it can be used for recreational, fashion or other purposes such as e.g., a watch, smartphone, GPS, skin activated fashion ‘mood’ device. Furthermore, thepatch110 could include components to measure biological fluids (e.g., blood, hormones); for example, a person can wear apatch110 to measure insulin or cardiac markers for heart attack (troponin). This allows the user to wear patches to measure biological fluids sub-cutaneous or trans-dermal. With no external wiring, thepatch110 can be worn while the user showers. According to the illustrated embodiment, eachlower layer112a,112b,112ccomprises a power component130 (e.g., a battery or a connection to apower component150 in the top layer114), one ormore sensors132,134,136,138, an integrated circuit (IC) chip (or circuit)140 and adata bus portion142. Thesensors132,134,136,138 could be microphones, accelerometers, pressure sensors for sensing the wearer's pulse, humidity sensors for measuring sweat, temperature sensors for measuring heat, altimeters for measuring incline, and electrical sensors for measuring electrical heartbeats. In addition, thesensors132,134,136,138 can comprise more complex (higher order) sensors based on micro-electro-mechanical systems (MEMS) sensors or even microfluidic sensors. The illustratedtop layer114 comprises a power component150 (e.g., a battery), a main IC chip160 amemory device170 and abus portion180.
• Although not shown, the components in eachlayer112a,112b,112c,114 are interconnected by interconnects formed in or attached to thesubstrates122,126. Examples of suitable interconnects include e.g., embedded fine copper wire, etched silver plating, conductive polymers or flexible circuit boards; all of these interconnections are very flexible and readably available. Although not shown, other components can be included on each layer such as e.g., resistors; Bluetooth circuitry/chip, etc. depending upon the intended use of thepatch110. In addition, an on/off button/switch and/or other buttons/switches can also be present so that the user can e.g., activate/deactivate the electronics, cause thepatch110 to transmit or receive data, etc.
• Thetop layer114 comprises a main IC chip (or circuit)160, which may be a programmed processor or a microcontroller and may include at least one low power communication mechanism (e.g., Bluetooth, wireless RF communications, RS-232/RS-432 serial port, USB connector, etc.) for communicating data collected by the patch's electronics to the outside world (discussed below). It should be appreciated that thelayers112a,112b,112c,114 can communicate with each other via wireless communications as well. This would allow thetop layer114 to talk to thelower layers112a,112b,112cto e.g., check stickiness, power levels, or malfunctions of anylayer112a,112b,112c.Thetop layer114 would have the more expensive wireless technology while thelower layers112a,112b,112cwill have “low level” wireless technology to communicate upwards to the top of the stack. Alternatively, thelower layers112a,112b,112ccould require the more advanced wireless technology to provide for more robust sensing electronics in those layers.
• It should be appreciated that the illustratedmain IC chip160 could comprise one or more chips and/or circuits connected to perform and control the intended function of thepatch110 and to communicate with an external source to input/output any needed data.
• The IC chips140 on thelower layers112a,112b,112ccan be programmed processor or microcontrollers that control the activity of the individual layer. These IC chips140 are connected to thesensors132,134,136,138 and will collect data from the sensor and pass the data through thebus portion142 where it can be used by another lower layer or thetop layer114. TheIC chip160 of thetop layer114 can process the data, have it stored in thememory device170 and/or transmitted externally from thepatch110 using the communication mechanism in or connected to thechip160. If desired, themain IC chip160 could be connected to the IC chips140 in theother layers112a,112b,112cvia asuitable interconnect162. Addressing, data and/or control data can be passed between the thus connected IC chips140,160 as desired. In addition, data can be passed betweenlayers112a,112b,112c,114 using thedata bus portions142,180. This data can be stored in thememory device170, which in one embodiment is a flash memory or other type of non-volatile memory device.
• In one embodiment, thepower component150 of themain layer114 powers all of thelayers112a,112b,112c,114. As such, the power components of thelower layers112a,112b,112cmerely need to be connections (e.g., a bus) to thepower component150. In another embodiment, eachpower component130,150 is a separate source of power for its layer. Thepower components130,150 in each layer are illustrated as being connected to each other (e.g., in a manner in which multiple batteries may be connected to each other). It should be appreciated, however, that thepower components130,150 do not have to be connected to each other if they have enough power to power the electronics (i.e., sensors, IC chips, memory, data bus portion, etc.) on their respective layer. As can be appreciated, depending upon its intended duration of use for each layer (e.g., a few hours to one or more days), eachpatch110 will have its own unique power requirements that dictate the type ofpower components130,150 used therein. It should be appreciated that thetop layer114 may need a more robust power component because it is the last layer disposed of. Similarly,lower layers112a,112b,112cthat are in an upper portion of the stack of lower layers may need a more robust power source than layers that are in the lower portion of the stack.
• It should be appreciated that other types of power components besides batteries can be used. For example, the power components could be one or more of solar cells, hydraulic, hybrid, gas, chemical, mechanical, or other power components. It should also be appreciated that that a layer, power component, or other electronics in thepatch110 can be activated e.g., by skin contact, adhesive sticking, adhesive heating and/or removal of the liner that had components (electrical or non-electrical) and which lost contact with the adhesive/stick-to-skin layer, thus turning on that layer in whole or solely parts/portions of that layer. In addition, a layer above another layer may have its power component in the off state because it has not yet been applied to e.g., the user's skin.
• As can be appreciated, by stacking multiple adhesive layers on top of each other, more expensive electronic/hardware components can be used on thetop layer114 while less expensive (and more easily disposable) electronic/hardware components can be placed inlower layers112a,112b,112c,which are used and disposed of at regular intervals. This reduces costs because the necessary expensive hardware is not being disposed of after each use of a layer. This also means that more durable electronic/hardware components can be used in thetop layer114 since thetop layer114 is not discarded until the intended usefulness/lifetime of thepatch110 has expired. Likewise, thetop layer114 can comprise more robust power, memory storage and/or communication electronic/hardware components for the same reason. Thus, there will less chance that thepatch110 will malfunction; in addition, thepatch110 can process, store and transmit more data than existing patches.
• Although not intended to be limiting, the following are examples of the electronic/hardware components that could be used in thepatch110.Example sensors132,134,136,138 include off-the-shelf microphones made e.g., by Panasonic (part number WM-64K) and/or accelerometers made e.g., by Analog Devices (part number ADXL362BCCZ). These are inexpensive devices that are suitable for use in the regularly disposablelower layers112a,112b,112c.An example of thepower component150 used in thetop layer114 can include a lithium battery such as e.g., the CR2032 battery by Panasonic. An example of theIC chip160 used in thetop layer114 can include an MSP430F5528IYFF micro controller by Texas Instrument.
• As mentioned above, thepatch110 can collect data (via thesensors132,134,136,138), process the data and/or store it in thememory device170 in thetop layer114. The data can be passed betweenlayers112a,112b,112cand to the top layer114 (viabus portions142,180). Thus, with the preservation ofIC chip160 andmemory170 of thetop layer114, data from the disposablelower layers112a,112b,112cis recorded allowing the data to be integrated and more robust data analysis to be performed on thepatch110, if desired. In addition, it is desirable to output the raw or processed data to the “outside” world. Thus, the firmware and embedded software provided in thetop layer114 communicates desired data to an external device (e.g., computer, tablet, smart phone, etc.) or a network/Internet “cloud” using one or more of Bluetooth or other wireless communication or with a hardwired communication mechanism such as e.g., a USB, RS-232 or RS-432 port on thepatch110.
• As can be appreciated, there are numerous uses for thepatches10,110 disclosed herein. As mentioned above,patch10 can be used as a bandage (e.g., when gauze or other suitable material is contained on/within thelayers12a,12b,12c,14), can be used to apply medicine to treat a wound, infection or a patient's addiction (e.g., when medicine or another substance is contained on/within thelayers12a,12b,12c,14), or can be used as a multi-layer adhesive tape.Patch110, because it contains electronics/hardware, can be used for at least the following applications: monitoring sleep apnea or other sleeping disorders/problems; monitoring a discharged patient; self-monitoring a person's response to physical activity; and monitoring how a child/baby is breathing. In addition, thepatch110 can be adapted to be used with medical equipment such as e.g., cardio-rhythm devices (e.g., EKG and Holter monitors) and diabetes devices (e.g., artificial pancreas). Moreover, thepatch110 can be used as a digital bandage, providing both a healing function and a health monitoring function at the same time. Thepatch110 could be used as a point-of-care fluid reading device where the lower layer is “dirty” thus, protecting top layer from contamination. Thepatch110 could be used as point of care devices/analyzers that monitor CBC, minerals, chemical levels. (related to POC type device), etc. Thepatch110 could use Bluetooth ‘pairing’ such that e.g., if children in one family are wearing thepatch110, a parent can monitor their proximity to each other and an alarm can be sounded if one or more of the children stray too far (e.g. this would be useful at a large event). Once again, it should be appreciated that the disclosedpatches10,110 should not be limited to a particular use and/or construction and that the following examples are merely for illustration purposes.
• When used to monitor sleep apnea, or other sleeping disorders, a user could apply a e.g., a 3-day patch110 having alower layer112a,112b,112cfor each day/night being monitored. The user opens the package, hits the on switch, peels off the liner (if provided) from thelowest layer112a,and sticks thepatch110 on his/her neck. Real-time sleep data (e.g., breathing and body motion) is sent wirelessly to a remote device provided by a doctor or e.g., a smart phone, tablet, or computer using e.g., Bluetooth communications. When the user wakes up, he/she peels off thepatch110 and disposes thelowermost layer112a.The user goes about his/her daily activities and when it is time to go back to sleep, he/she reapplies thepatch110 using the next lower layer (e.g.,112b). This process is repeated until thelower layers112a,112b,112c,etc. are used up. In addition to, or alternatively, the monitored data can be stored in thememory device170 and thetop layer114 can be attached, via a wireless or wired connection, to a device that can download the data from thememory device170.
• The disclosedpatch110 can be used by a hospital to reduce its readmission rate by monitoring a discharged patient for an extended period of time (e.g., 60 days). When used in this type of application, a user is provided with a one or twomonth patch110 that is worn continuously for approximately twenty-four hours a day (i.e., thepatch110 is only removed to peel off a lower layer and then reapplied). Real-time results are recorded during the day and sent e.g., to real-time Internet/network cloud associated with the hospital or patient's doctor. Thepatch110 is beneficial to the patient because the patient can take a shower without wearing bulky devices (e.g., Halter Monitor) as is presently required. It should be appreciated that long-use patches can be implemented in many ways. For example, a 60-day patch could be implemented as one big patch containing 60/61 layers; alternatively, thepatch110 could be divided into “intervals” (e.g., monthly, weekly, pack of five layers, etc.). It should be appreciated that the uniqueness of the top layer114 (and its relatively expensive components) may also determine the stack size of thepatch110. Moreover, thepatch110 can be packaged withother patches110 in the same package/box (e.g., 6 ten-day patches in one package); a digital time stamp could be used to show when onepatch110 can be or was used and then thenext patch110, etc. (i.e., thepatches110 are automatically dated). Whenmultiple patches110 are to be used, onepatch110 can contain amaster top layer114 while theother patches110 can contain solelylower layers112a,112b,112cor modifiedtop layers114 with less electronics than the maintop layer114.
• The disclosedpatch110 can be used for self-monitoring of a person's health during physical activity such as jogging or yoga. The user will wear thepatch110 during the activity and then may look at results e.g., real-time on a smart phone/tablet application or a later time on any suitable device. As another example, people showing up for a yoga class can buy the disclosed low-cost patch110 while also paying for a towel or mat. People use the patch as a way to start new conversations with their coach who can then review data from thepatch110.
• As can be appreciated, thepatches110 can be made small enough for a parent to apply them to a baby or small child. This way, the parent can monitor a baby/child's breathing, sleep pattern, and/or asthma. The disclosedpatch110 is also easy to use, even a child could use it on his/her own. It should also be appreciated that thepatches10/110 could include mechanical supports or other material to conform thepatch10/110 to a particular shape such as e.g., a curved shape. For example, thetop layer14/114 could mold or hold the rest of the layers in the stack in the desired shape.
• The foregoing examples are provided merely for the purpose of explanation and are in no way to be construed as limiting. While reference to various embodiments is made, the words used herein are words of description and illustration, rather than words of limitation. Further, although reference to particular means, materials, and embodiments are shown, there is no limitation to the particulars disclosed herein. Rather, the embodiments extend to all functionally equivalent structures, methods, and uses, such as are within the scope of the appended claims.
• Additionally, the purpose of the Abstract is to enable the patent office and the public generally, and especially the scientists, engineers and practitioners in the art who are not familiar with patent or legal terms or phraseology, to determine quickly from a cursory inspection the nature of the technical disclosure of the application. The Abstract is not intended to be limiting as to the scope of the present inventions in any way.

Claims (20)

What is claimed is:

1. A patch comprising:

at least one lower layer, each lower layer having a substrate with a first surface and a second surface, each first surface comprising an adhesive formed thereon; and

a top layer provided over a second surface of the at least one lower layer.

2. The patch ofclaim 1, wherein said top layer comprises a substrate having a third surface and a fourth surface, said third surface comprising an adhesive formed thereon and being provided over the second surface of the at least one lower layer.

3. The patch ofclaim 1, wherein each lower layer comprises electronics for monitoring a characteristic of a wearer of the patch.

4. The patch ofclaim 3, wherein said electronics comprises one or more of sensors, integrated circuit chips, power source components, data transfer components, or memory storage devices.

5. The patch ofclaim 4, wherein the power source components comprise batteries.

6. A patch comprising:

a plurality of adhesive layers, each adhesive layer comprising a first surface comprising an adhesive and a second surface comprising a non-adhesive material, the adhesive layers being configured into a stack such that a second surface of a lower layer in the stack is removably adhered to a first surface of an upper layer in the stack.

7. The patch ofclaim 6, wherein each adhesive layer comprises electronics for monitoring a characteristic or activity of a wearer of the patch.

8. The patch ofclaim 7, wherein the electronics of each adhesive layer can pass data to the electronics on another adhesive layer using data transfer components formed on each adhesive layer.

9. The patch ofclaim 7, wherein said electronics comprises one or more of sensors, integrated sensor chips, power source components, data transfer components, or memory storage devices.

10. The patch ofclaim 7, wherein the electronics in a topmost adhesive layer are different than the electronics in the remaining layers of the stack.

11. The patch ofclaim 6, wherein removal of the lower most adhesive layer exposes the first surface of a next-lowest adhesive layer in the stack.

12. A patch comprising:

a plurality of first layers formed into a stack; and

a second layer provided over a topmost first layer of the stack,

wherein each first layer and the second layer comprises a first surface comprising an adhesive and a second surface comprising a non-adhesive substrate.

13. The patch ofclaim 12, wherein the first layers are configured into the stack such that a second surface of a lower first layer in the stack is removably adhered to a first surface of an upper first layer in the stack.

14. The patch ofclaim 13, wherein the first surface of the second layer is provided on a second surface of a topmost first layer in the stack.

15. The patch ofclaim 13, wherein each first layer and the second layer comprises electronics for monitoring a characteristic of a wearer of the patch.

16. The patch ofclaim 15, wherein the characteristic comprises one of sleep apnea or asthma.

17. The patch ofclaim 15, wherein the electronics of each first layer can pass data to the electronics on the second layer using data transfer components formed on each first and second layer.

18. The patch ofclaim 15, wherein said electronics comprises one or more of sensors, integrated circuit chips, power source components, data transfer components, or memory storage devices.

19. The patch ofclaim 18, wherein the power source components comprise batteries.

20. The patch ofclaim 15, wherein the electronics in the second layer are different than the electronics in the first layers.

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