Dermal patch for collecting a physiological sample
Inventors
Nawana, Namal • Al-Shamsie, Ziad Tarik
Assignees
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Publication Number
US-12023156-B2
Publication Date
2024-07-02
Expiration Date
Abstract
A dermal patch system for collecting a physiological sample includes a cartridge configured to attach to the skin of a subject. The cartridge includes a bottom material layer, a middle material layer, a top material layer, and a sample collection pad. The top layer and the middle layer define a vacuum pin receptacle and the vacuum pin is disposed within the vacuum pin receptacle. The vacuum pin creates a vacuum within the cartridge when moved to a deployed position. The system further includes a lancet with a needle(s). The lancet is configured to move the needle(s) from an undeployed position to a deployed position when engaged with into the cartridge. The needle(s) is configured to draw a physiological sample from the subject when the needle(s) is in the deployed position. The vacuum created by the vacuum pin draws the physiological sample to the sample collection pad.
Core Innovation
The invention provides a dermal patch system for collecting a physiological sample. The system includes a cartridge with a bottom material layer configured to attach to the subject's skin, a top material layer, and a middle material layer disposed between and coupled to the bottom and top material layers. The top material layer and the middle material layer cooperatively define a vacuum pin receptacle and include a sample collection pad.
A vacuum pin is disposed within the vacuum pin receptacle and is moveable within the receptacle between an undeployed position and a deployed position to create vacuum within the cartridge. The vacuum facilitates the transfer of the physiological sample to the sample collection pad. A lancet includes at least one needle and is configured to automatically move the needle from an undeployed position to a deployed position when the lancet is engaged into the cartridge.
When the needle is in the deployed position and the cartridge is attached to the subject's skin, the needle is configured to draw a physiological sample from the subject. The vacuum within the cartridge and the lancet needle cooperate to transfer the physiological sample to the sample collection pad.
Claims Coverage
The independent claim is directed to a dermal patch system that integrates a skin-attachable multi-layer cartridge defining a vacuum pin receptacle, a moveable vacuum pin that creates vacuum, and an automatically actuated lancet needle that draws a physiological sample for vacuum-facilitated transfer to a sample collection pad.
Skin-attachable cartridge with vacuum pin receptacle and sample collection pad
A cartridge includes a bottom material layer configured to attach to the subject's skin, a top material layer, and a middle material layer disposed between and coupled to the bottom and top material layers, wherein the top and middle material layers cooperatively define a vacuum pin receptacle and a sample collection pad.
Moveable vacuum pin creating vacuum for sample transfer
A vacuum pin disposed within the vacuum pin receptacle is moveable between an undeployed position and a deployed position to create a vacuum within the cartridge, wherein the vacuum facilitates the transfer of the physiological sample to the sample collection pad.
Automatically engaged lancet with needle drawing the physiological sample
A lancet including at least one needle is configured to automatically move the needle from an undeployed position to a deployed position when the lancet is engaged into the cartridge, wherein the needle is configured to draw a physiological sample from the subject when the needle is in the deployed position and the cartridge is attached to the subject's skin.
Across the independent claim, the core claim coverage is the cooperative cartridge architecture (vacuum pin receptacle and sample collection pad), vacuum generation by a moveable vacuum pin, and automatic lancet needle deployment that draws the physiological sample for transfer to the sample collection pad under vacuum facilitation.
Stated Advantages
Facilitates the transfer of the physiological sample to the sample collection pad.
Documented Applications
Collecting a physiological sample from a subject using a dermal patch system with a skin-attachable cartridge and a lancet/needle drawing sample for vacuum-facilitated transfer to a sample collection pad.
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