Analyte sensor retention mechanism and methods of use

• US 9,521,968 B2
• Filed: 09/30/2005
• Issued: 12/20/2016
• Est. Priority Date: 09/30/2005
• Status: Active Grant

• Current Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Inventors: Mazza, John C., Naegeli, Andrew H.
• Primary Examiner(s): Natnithithadha, Navin
• Application Number:
  US11/240,258
• Publication Number:
  US 20070078321A1
• Time in Patent Office: 4,099 Days
• Field of Search: 600/309, 600345-366, 606/222, 606/223, 606/224, 606/225
• US Class Current: 1/1
• CPC Class Codes: A61B 2560/063 Devices specially adapted for delivering implantable medical measuring apparatus
• 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 5/14532 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

Abstract

Method and apparatus for providing a retention mechanism to retain the sensor in pre-deployment position within the introducer when the sensor insertion mechanism is activated so as to facilitate the sensor insertion process is disclosed.

Claims

1. A biosensor insertion kit, comprising:

a sensor body having a first section and a second section, the second section having a planar surface, a bottom edge and opposing side edges, the first section extending distally from the bottom edge of the second section and configured for transcutaneous placement in fluid contact with an analyte of a user for a predetermined time period, the second section including a retention segment extending transversely from the planar surface and proximate a side edge of the second section and formed by at least a portion of the second section of the sensor body, the second section configured for positioning above a skin layer so as not to contact the analyte when the first section is in contact with the analyte; and

an introducer having a sensor guide channel, the introducer configured to frictionally engage with the retention segment of the sensor body during insertion of the first section of the sensor body, wherein the retention segment of the sensor body is located along the side edge in the sensor guide channel prior to transcutaneous placement of the first section of the sensor.

2. The kit of claim 1, wherein the introducer includes a tip portion configured to substantially retain at least a portion of the sensor body.

3. The kit of claim 2, wherein the tip portion of the introducer is configured to pierce through the skin layer.

4. The kit of claim 1, wherein the sensor body includes an analyte sensor.

5. The kit of claim 4, wherein the analyte sensor is a glucose sensor.

6. The kit of claim 1, further comprising a plurality of retention segments along the side edge of the second section of the sensor body.

7. The kit of claim 1, wherein the retention segment comprises an angular protrusion.

8. The kit of claim 1, wherein the introducer comprises opposing guide channels to receive the opposing side edges of the sensor body.

9. The kit of claim 8, wherein the retention segment of the sensor body frictionally engages the opposing guide channels of the introducer.

10. The kit of claim 1, wherein the first section has a narrow structure which extends along an axis of the side edge of the second section opposite the side edge at which the retention segment is positioned.

11. The kit of claim 10, wherein the sensor guide channel of the introducer is configured to retain the side edge of the sensor body where the retention segment is disposed, and a different sensor guide channel of the introducer is configured to retain the side edge of the sensor body including the narrow structure.

12. The kit of claim 1, wherein the sensor guide channel includes a folded metal channel.

13. The kit of claim 12, wherein the folded metal channel forms a U-like shape.

14. The kit of claim 1, wherein the retention segment provides an amount of frictional force to engage with the introducer and retain the sensor body in position prior to the insertion, wherein the amount of frictional force does not impede a disengagement of the introducer and a removal of the introducer after the insertion.

15. The kit of claim 6, wherein the plurality of retention segments provides an amount of frictional force to engage with the introducer and retain the sensor body in position prior to insertion, wherein the amount of frictional force does not impede a disengagement of the introducer and a removal of the introducer after the insertion.