TRANSCUTANEOUS ANALYTE SENSOR

• US 20100185069A1
• Filed: 03/30/2010
• Published: 07/22/2010
• Est. Priority Date: 07/13/2004
• Status: Active Grant

• Current Assignee: DexCom Incorporated
• Original Assignee: DexCom Incorporated
• Inventors: Guerre, John A., Kamath, Apurv Ullas, Brister, Mark, Petisce, James R., Thrower, James Patrick, Saint, Sean, Neale, Paul V., Kline, Daniel S., Petersen, David Michael, Codd, Daniel Shawn, McGee, Thomas F.
• Granted Patent: US 9,814,414 B2
• Time in Patent Office: Days
• US Class Current: 600/345
• CPC Class Codes: A61B 17/3468 for implanting or removing devices, e.g. prostheses, implants, seeds, wires devices for implanting seeds A61M37/0069
• CPC Class Codes: A61B 2017/3492 against the outside of the body
• CPC Class Codes: A61B 2560/0223 of calibration, e.g. protocols for calibrating sensors
• CPC Class Codes: A61B 2560/045 with a separable interface unit, e.g. for communication
• CPC Class Codes: A61B 2560/063 Devices specially adapted for delivering implantable medical measuring apparatus
• CPC Class Codes: A61B 2562/18 Shielding or protection of sensors from environmental influences, e.g. protection from mechanical damage
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/0004 characterised by the type of physiological signal transmitted
• CPC Class Codes: A61B 5/0031 Implanted circuitry
• CPC Class Codes: A61B 5/05 Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves impedance plethysmography A61B5/0295; measuring movement of the entire body or parts thereof A61B5/11; detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof A61B5/24
• CPC Class Codes: A61B 5/14 Devices for taking samples of blood hypodermic syringes A61M5/00; Measuring characteristics of blood in vivo, e.g. gas concentration within the blood, pH-value of blood measuring of blood pressure A61B5/02; non-radiation detecting or locating of foreign bodies in blood A61B5/06
• CPC Class Codes: A61B 5/1411 by percutaneous method, e.g. by lancet
• CPC Class Codes: A61B 5/145 Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissuemeasuring of blood pressure or blood flow A61B5/02; non-radiation detecting or locating of foreign bodies in blood A61B5/06
• CPC Class Codes: A61B 5/14503 invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors A61B5/1459, A61B5/1464, A61B5/1473, A61B5/1482, A61B5/14865 take precedence
• CPC Class Codes: A61B 5/14507 specially adapted for measuring characteristics of body fluids other than blood devices for taking samples of body liquids A61B10/0045
• CPC Class Codes: A61B 5/1451 for interstitial fluid
• CPC Class Codes: A61B 5/14514 using means for aiding extraction of interstitial fluid, e.g. microneedles or suction
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• CPC Class Codes: A61B 5/1468 using chemical or electrochemical methods, e.g. by polarographic means A61B5/1486 takes precedence
• CPC Class Codes: A61B 5/1473 : invasive, e.g. introduced into the body by a catheter A61B5/1482 takes precedence
• CPC Class Codes: A61B 5/14735 : comprising an immobilised reagent
• CPC Class Codes: A61B 5/1486 : using enzyme electrodes, e.g. with immobilised oxidase
• CPC Class Codes: A61B 5/14865 : invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors
• CPC Class Codes: A61B 5/1495 : Calibrating or testing of in-vivo probes
• CPC Class Codes: A61B 5/150022 : for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/6801 : specially adapted to be attached to or worn on the body surface
• CPC Class Codes: A61B 5/6833 : Adhesive patches
• CPC Class Codes: A61B 5/68335 : including release sheets or liners
• CPC Class Codes: A61B 5/6848 : Needles
• CPC Class Codes: A61B 5/6849 : in combination with a needle set
• CPC Class Codes: A61B 5/72 : Signal processing specially adapted for physiological signals or for diagnostic purposes character recognition, recognising digital ink, document-oriented image-based pattern recognition G06V30/00; recognition or understanding of postal images G06V30/424
• CPC Class Codes: A61M 2005/1585 : Needle inserters
• CPC Class Codes: A61M 5/14244 : adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/1723 : using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00
• CPC Class Codes: Y02A 90/10 : Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Abstract

The present invention relates generally to systems and methods for measuring an analyte in a host. More particularly, the present invention relates to systems and methods for transcutaneous measurement of glucose in a host.

Claims

1. A method for inserting a transcutaneous analyte sensor into a host using an applicator, the method comprising the steps of:

pushing on a first component of an applicator for inserting a transcutaneous analyte sensor into a host, so as to insert an introducer and the sensor into the skin of the host; and

pulling on a second component of the applicator so as to retract the introducer from the skin of the host, while leaving the sensor in the host;

wherein the first component and the second component of the applicator are configured to interact so as to enable insertion of the sensor and retraction of the introducer using a motion provided by a user.

2. The method of claim 1, wherein the motion provided the user includes a continuous motion.

3. The method of claim 1, wherein the motion provided the user includes a single motion.

4. The method of claim 1, wherein the motion provided the user includes a single continuous motion.

5. The method of claim 1, wherein the pushing step comprises pushing on a plunger.

6. The method of claim 1, wherein the pulling step comprises pulling on a body portion of the second component of the applicator.

7. The method of claim 1, wherein the applicator is configured to insert the sensor and retract the introducer by a force provided by a user'"'"'s hand.

8. The method of claim 1, wherein the applicator is configured to insert the sensor and retract the introducer solely by a force provided by a user'"'"'s hand.

9. The method of claim 1, wherein the applicator is configured to insert the sensor and retract the introducer responsive to a squeezing motion between a user'"'"'s thumb and fingers.

10. The method of claim 1, wherein the applicator is configured to sequentially insert the sensor and retract the introducer responsive to a squeezing motion between a user'"'"'s thumb and fingers.

11. The method of claim 1, wherein the applicator is configured to sequentially insert the sensor and retract the introducer responsive to a downward force provided by the user.

12. The method of claim 1, wherein the applicator is configured to sequentially insert the sensor and retract the introducer responsive to a continuous downward force provided by the user.

13. The method of claim 1, wherein the user is the host.

14. A method for inserting a transcutaneous analyte sensor into a host using an applicator, the method comprising the steps of:

placing an applicator system against a skin of a host, the applicator system comprising a housing configured for placement against the skin of the host, a sensor configured for transcutaneous placement through the skin of a host, and an applicator configured for inserting the sensor through the housing and into the skin of the host; and

inserting the sensor into the host.

15. The method of claim 14, wherein inserting the sensor into the host includes inserting the sensor into the host by applying a force to a component of the applicator.

16. A method of using an electrochemical sensor, the method comprising:

adhering a mounting unit to a skin of a patient, wherein the mounting unit comprises an applicator coupled thereto, the applicator having an electrochemical sensor disposed therein;

inserting an electrochemical sensor into the skin of the patient using the applicator;

releasing the applicator; and

coupling an electronics unit body to the mounting unit, whereby the mounting unit is coupled with a plurality of conductive contacts disposed on the electronics unit body.

17. The method of claim 16, wherein a contact disposed on the mounting unit is coupled with the plurality of conductive contacts disposed on the electronics unit body.

18. The method of claim 17, wherein the contact includes a plurality of conductive contacts.