Dermal patch for collecting a physiological sample
Inventors
Nawana, Namal • Al-Shamsie, Ziad Tarik
Assignees
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Publication Number
US-12446810-B2
Publication Date
2025-10-21
Expiration Date
Abstract
A dermal patch for collecting a physiological sample includes a housing with a collection chamber, a sample channel and a pin within a receptacle of the housing. The sample channel is configured to direct a physiological sample drawn from a subject to the collection chamber. The pin is removably positioned within the receptacle and is configured to move from an undeployed position to a deployed position. The pin is configured to seal the receptacle when in the undeployed position and is further configured to facilitate generation of negative pressure in the sample channel when the pin is moved from the undeployed to the deployed position.
Core Innovation
The system comprises a dermal patch with a housing configured to attach to a subject's skin and an opening that provides access to the skin while attached. A separate lancet is configured for insertion into and withdrawal from the patch to engage with the opening. The lancet includes a needle movable from an undeployed position to a deployed position, where it is capable of puncturing the skin to draw a physiological sample such as blood or interstitial fluid.
The described embodiments encompass a sample channel leading to a collection chamber, an absorbent element for sample storage, processing-fluid reservoirs, and analyte detectors with electronic readout. Sample collection is supported by a spring-loaded lancet and a movable pin configured to generate negative pressure. The patch system further associates with mobile devices, electronic medical record databases, QR codes, and networked computing systems.
Claims Coverage
The relevant claims provide one independent claim comprising three inventive features.
Dermal patch with an opening
The system includes a dermal patch comprising a housing configured to attach to a subject's skin, with an opening that provides access to the skin when the patch is attached.
Separate insertable lancet
A lancet separate from the dermal patch is configured for insertion into and withdrawal from the patch and to engage with the opening.
Movable needle for drawing a physiological sample
The lancet includes a needle movable from an undeployed position to a deployed position, wherein the needle in the deployed position is capable of puncturing the subject's skin to draw a physiological sample.
The independent claim centers on the combination of a skin-attached dermal patch with an access opening and a separate, insertable lancet with a movable needle for drawing a physiological sample.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Applying a dermal patch and collecting a physiological sample, including blood or interstitial fluid.
Detecting a target analyte using workflows with electronic readout, reporting, and notification.
Communicating patch-monitoring information with mobile devices, electronic medical record databases, and networked computing systems, including associating a QR code with an electronic medical record and updating the record.
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