Systems and interfaces for blood sampling
First Claim
1. A device for receiving blood or other fluids from a subject, the device comprising:
- a flexible concave member moveable between a first configuration and a second configuration;
a needle mechanically coupled to the flexible concave member such that the needle is in a first position when the flexible concave member is in the first configuration and the needle is in a second position when the flexible concave member is in the second configuration;
an applicator region containing the needle at least when the needle is in the second position; and
a self-contained vacuum chamber having a pressure less than atmospheric pressure before the device is applied to the skin of the subject, wherein the device is configured such that movement of the flexible concave member from the first configuration to the second configuration creates a fluid communication pathway between the vacuum chamber and the applicator region.
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Accused Products
Abstract
The present invention generally relates to systems and methods for delivering and/or receiving a substance or substances such as blood from subjects. In one aspect, the present invention is directed to devices and methods for receiving or extracting blood from a subject, e.g., from the skin and/or from beneath the skin, using devices containing a substance transfer component (for example, one or more needles or microneedles) and a reduced pressure or vacuum chamber having an internal pressure less than atmospheric pressure prior to receiving blood. In some embodiments, the device may contain a “snap dome” or other deformable structure, which may be used, at least in part, to urge or move needles or other suitable substance transfer components into the skin of a subject. In some cases, for example, the device may contain a flexible concave member and a needle mechanically coupled to the flexible concave member.
525 Citations
26 Claims
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1. A device for receiving blood or other fluids from a subject, the device comprising:
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a flexible concave member moveable between a first configuration and a second configuration; a needle mechanically coupled to the flexible concave member such that the needle is in a first position when the flexible concave member is in the first configuration and the needle is in a second position when the flexible concave member is in the second configuration; an applicator region containing the needle at least when the needle is in the second position; and a self-contained vacuum chamber having a pressure less than atmospheric pressure before the device is applied to the skin of the subject, wherein the device is configured such that movement of the flexible concave member from the first configuration to the second configuration creates a fluid communication pathway between the vacuum chamber and the applicator region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A device for receiving blood or other fluids from a subject, the device comprising:
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a flexible concave member moveable between a first configuration and a second configuration; an actuator able to move the flexible concave member between the first configuration and the second configuration when actuated; a needle mechanically coupled to the flexible concave member such that the needle is in a first position when the flexible concave member is in the first configuration and the needle is in a second position when the flexible concave member is in the second configuration; an applicator region containing the needle at least when the needle is in the second position; and a self-contained vacuum chamber having a pressure less than atmospheric pressure before the device is applied to the skin of the subject, wherein the actuator, when actuated, is able to create a fluid communication pathway between the vacuum chamber and the applicator region. - View Dependent Claims (24, 25, 26)
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Specification