Medical sensor system for detecting a feature in a body
AssigneeBIOTRONIK SE & Co. KG
InventorsSven Bode, Andreas Bunge, Sarah Biela, Hoc Khiem Trieu
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Abstract
The invention relates to a medical sensor system (10) for detecting a feature (12), such as an analyte, in a human or animal body. The system (10) includes at least one sensor (14; 34) having a reservoir (18) with a cap (16) designed as a controllable organic membrane (20), wherein (for example) application of a voltage of a particular magnitude, or application of a voltage for a particular time, effects a change in the permeability of the membrane (20).
Claims20
A medical sensor system for detecting a feature of an analyte in a body, the system including:
- a. a reservoir having a reservoir interior sample volume bounded by a reservoir wall, the reservoir wall:
- (1) isolating the reservoir interior sample volume from a reservoir exterior, and
- (2) including a reservoir cap defined by an organic membrane having pores therein, the pores having controllably adjustable pore sizes, whereby the pore sizes are adjustable to selectively allow or prohibit passage of the analyte through the pores from the reservoir exterior to the reservoir interior sample volume;
- b. a sensor situated within the reservoir interior sample volume, the sensor being configured to detect the feature of the analyte.
A medical sensor system for detecting a feature of an analyte in a body, the system including:
- a. a reservoir having a reservoir cap thereon, wherein:
- (1) the reservoir and reservoir cap:
- (a) bound a reservoir interior sample volume, and
- (b) isolate the reservoir interior sample volume from the reservoir exterior;
- (2) the cap includes:
- (a) a carrier structure having apertures of fixed size defined therein;
- (b) a conductor situated on the inner surfaces of the apertures;
- (c) an electroactive material on the inner surfaces and conductors, the electroactive material having pores extending through the reservoir cap;
- wherein application of electricity to the conductor induces a change in the sizes of the pores of the electroactive material between:
- i. a closed state wherein the pores are closed, with the cap thereby separating the reservoir interior sample volume from the reservoir exterior, and
- ii. a fully open state wherein the pores have maximum pore sizes, with the pores thereby exposing the reservoir interior sample volume to the reservoir exterior;
- and
- b. a sensor situated within the reservoir interior sample volume.
Dependencies are inferred from the claim text.