Analyte monitoring and fluid dispensing system
First Claim
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1. A two-part patch unit comprising:
- a disposable part comprising;
a first housing containing therewithin;
a reservoir containing therapeutic fluid for delivery, andan energy supply; and
a connecting lumen fluidly connected to the reservoir and fixed to the first housing; and
a reusable part comprising a second housing containing therewithin;
a driving mechanism;
a monitoring apparatus for monitoring an analyte level and comprising an electrochemical sensing mechanism; and
a processor-controller; and
a cradle unit comprising;
a first surface receiving the disposable part and the reusable part;
a second surface comprising an adhesive for coupling to a skin surface; and
a well defining an opening between the first and second surfaces;
a cannula comprising;
an outer periphery along a longitudinal length which extends down from the second surface of the cradle unit; and
an open end distal from a proximal end adjacent to the reusable part and the disposable part;
a self-sealable septum coupled to the proximal end of the cannula, the reservoir being fluidically connectable to the cannula through the self-sealable septum via the connecting lumen which is configured to pierce the septum directly and immediately upon connection of the disposable part and reusable part to the cradle unit to deliver the therapeutic fluid out the open end, the cannula and septum are insertable together into the well with the cradle unit coupled to the skin surface, and wherein the well of the cradle anchors the septum and cannula upon insertion therein; and
a plurality of electrodes coupled to the outer periphery adjacent the open end of the cannula.
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Abstract
Disclosed is a skin adherable device for delivering therapeutic fluid into a body of a patient. The device includes a monitoring apparatus, a dispensing apparatus, and a tip for delivering the therapeutic fluid into the body of the patient and for monitoring bodily analyte in the body of the patient. The dispensing apparatus may continuously deliver the therapeutic fluid to the body of the patient and the monitoring apparatus may continuously monitor bodily analytes of the patient.
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Citations
20 Claims
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1. A two-part patch unit comprising:
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a disposable part comprising; a first housing containing therewithin; a reservoir containing therapeutic fluid for delivery, and an energy supply; and a connecting lumen fluidly connected to the reservoir and fixed to the first housing; and a reusable part comprising a second housing containing therewithin; a driving mechanism; a monitoring apparatus for monitoring an analyte level and comprising an electrochemical sensing mechanism; and a processor-controller; and a cradle unit comprising; a first surface receiving the disposable part and the reusable part; a second surface comprising an adhesive for coupling to a skin surface; and a well defining an opening between the first and second surfaces; a cannula comprising; an outer periphery along a longitudinal length which extends down from the second surface of the cradle unit; and an open end distal from a proximal end adjacent to the reusable part and the disposable part; a self-sealable septum coupled to the proximal end of the cannula, the reservoir being fluidically connectable to the cannula through the self-sealable septum via the connecting lumen which is configured to pierce the septum directly and immediately upon connection of the disposable part and reusable part to the cradle unit to deliver the therapeutic fluid out the open end, the cannula and septum are insertable together into the well with the cradle unit coupled to the skin surface, and wherein the well of the cradle anchors the septum and cannula upon insertion therein; and a plurality of electrodes coupled to the outer periphery adjacent the open end of the cannula. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of using a two-part patch unit comprising:
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providing the two-part patch unit comprising; a disposable part comprising; a first housing containing therewithin; a reservoir containing therapeutic fluid for delivery, and an energy supply; and a connecting lumen fluidly connected to the reservoir and fixed to the first housing; and a reusable part comprising a second housing containing therewithin; a driving mechanism; a monitoring apparatus for monitoring an analyte level and comprising an electrochemical sensing mechanism; and a processor-controller; and a cradle unit comprising; a first surface receiving the disposable part and the reusable part; a second surface comprising an adhesive for coupling to a skin surface; and a well defining an opening between the first and second surfaces; and a cannula comprising; an outer periphery along a longitudinal length which extends down from the second surface of the cradle unit; and an open end distal from a proximal end adjacent to the reusable part and the disposable part; a self-sealable septum coupled to the proximal end of the cannula, the reservoir being fluidically connectable to the cannula through the self-sealable septum via the connecting lumen which is configured to pierce the septum directly and immediately upon connection of the disposable part and reusable part to the cradle unit to deliver the therapeutic fluid out the open end, the cannula and septum are insertable together into the well with the cradle unit coupled to the skin surface, and wherein the well of the cradle anchors the septum and cannula upon insertion therein; and a plurality of electrodes coupled to the outer periphery adjacent the open end of the cannula; and coupling the cradle unit to the skin surface; and monitoring the analyte level within an interstitial fluid via the plurality of electrodes on the cannula and at the same time delivering fluid from the reservoir to a site under the skin surface via the cannula of the two-part patch unit. - View Dependent Claims (17, 18, 19, 20)
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Specification