Transcutaneous analyte sensor systems and methods

• US 10,827,955 B2
• Filed: 10/30/2017
• Issued: 11/10/2020
• Est. Priority Date: 10/31/2016
• Status: Active Grant

• Current Assignee: DexCom Incorporated
• Original Assignee: DexCom Incorporated
• Inventors: Simpson, Peter C., Shi, Minglian, Bohm, Sebastian, Majewski, John Patrick, Brown Wells, Maria Noel, Edra, Leah Morta, Sheth, Disha B., Gray, John Michael, Wang, Shanger, Lee, Ted Tang, Moore, Michael L., Mitchell, Jason, Blackwell, Jennifer, Shah, Neel Narayan, Newhouse, Todd Andrew, Halac, Jason, Schoonmaker, Ryan Everett, Neale, Paul V., Zou, Jiong, Saint, Sean T.
• Primary Examiner(s): Winakur, Eric F
• Assistant Examiner(s): Mustansir, Abid A
• Application Number:
  US15/798,064
• Publication Number:
  US 20180116572A1
• Time in Patent Office: 1,107 Days
• CPC Class Codes: A61B 2560/045 with a separable interface unit, e.g. for communication
• CPC Class Codes: A61B 5/0004 characterised by the type of physiological signal transmitted
• CPC Class Codes: A61B 5/0015 characterised by features of the telemetry system
• 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 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1473 invasive, e.g. introduced into the body by a catheter A61B5/1482 takes precedence
• CPC Class Codes: A61B 5/14865 invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors
• CPC Class Codes: A61B 5/683 Means for maintaining contact with the body A61B5/6802 takes precedence
• CPC Class Codes: A61B 5/6833 Adhesive patches
• CPC Class Codes: A61B 5/6849 in combination with a needle set

Abstract

Sensor systems can be used to measure an analyte concentration. Sensor systems can include a base having a distal side configured to face towards a person'"'"'s skin. An adhesive can couple the base to the skin. A transcutaneous analyte measurement sensor can be coupled to the base and can be located at least partially in the host. A transmitter can be coupled to the base and can transmit analyte measurement data to a remote device.

Claims

1. A sensor system for measuring an analyte concentration, the sensor system comprising:

a base having a distal side configured to face towards a skin of a host;

a first adhesive coupled to the base and configured to couple the base to the skin;

a transmitter coupled to the base and configured to transmit analyte measurement data;

a transcutaneous analyte measurement sensor coupled to the base; and

a collapsible support member configured to resist non-axial forces of the sensor, the collapsible support member comprises a channel, and a portion of the sensor passes through the channel, wherein the channel is configured to resist a buckling force of the sensor as the sensor moves from a proximal position to a distal position wherein the channel has at least one wall having

a proximal section having a first material, an intermediate section having a second material, and a distal section having a third material, and

wherein at least one of the first material, the second material, or the third material is foam.

2. The system of claim 1, wherein the portion of the sensor comprises a central axis, the channel is configured to resist lateral displacement of the portion of the sensor relative to the central axis, and the collapsible support member is configured to compress in response to the system moving the sensor from the proximal position to the distal position.

3. The system of claim 1, further comprising a tab coupled to the collapsible support member, wherein the system is configured such that actuating the tab causes the collapsible support member to collapse and causes at least the portion of the sensor to move distally relative to the base.

4. The system of claim 1, wherein the base comprises a distal portion and a proximal portion, the at least one wall is configured to compress in response to the system moving the sensor from the proximal position to the distal position, the channel is located at least partially between the distal portion and the proximal portion of the base, and the at least one wall of the channel is configured to resist lateral displacement of the portion of the sensor.

5. The system of claim 4, further comprising an interlock configured to secure the proximal portion of the base to the distal portion of the base in response to the system moving the sensor from the proximal position to the distal position.

6. The system of claim 1, wherein the second material is more rigid than the first and third materials such that the intermediate section is configured to resist the lateral displacement.

7. The system of claim 1, wherein the second material is stiffer than the first and third materials such that the intermediate section is configured to resist the lateral displacement.

8. The system of claim 1, wherein the second material is less compressible than the first and third materials.

9. The system of claim 1, wherein the first material and the third material are a same material.

10. A sensor system for measuring an analyte concentration, the sensor system comprising:

a base having a distal side configured to couple with a skin of a host;

a proximal portion coupled to the base and having a transmitter configured to transmit analyte measurement data;

a transcutaneous analyte measurement sensor coupled to the base;

bellows coupling the proximal portion to the base, wherein at least a portion of the sensor is located in an interior area of the bellows within a channel, the channel configured to resist a buckling force of the sensor as the sensor moves from a proximal position to a distal position; and

a removable interference member located between a lower surface of the proximal portion and an upper surface of the base to block movement of the sensor from a proximal position to a distal position.

11. The system of claim 10, wherein the portion of the sensor comprises a central axis, the bellows are configured to resist lateral displacement of the portion relative to the central axis, and the bellows are configured to compress in response to the system moving the sensor from the proximal position to the distal position.

12. The system of claim 11, further comprising an interlock coupled to the base and configured to secure the bellows in a compressed state.

13. The system of claim 10, further comprising a distal portion of the base, wherein the bellows couple the distal portion of the base to the proximal portion.