Method and apparatus for insertion of a sensor
First Claim
1. An insertion device, comprising:
- a guidance structure having an exit port and providing axial support to a flexible analyte sensor held therein, the guidance structure adapted to allow passage of the flexible analyte sensor upon application of a high speed motive force to the flexible analyte sensor, the high speed motive force is about 11 Newtons to about 53 Newtons; and
an injection activation device associated with the guidance structure, the injection activation device having a mechanism adapted to apply the high speed motive force solely to the flexible analyte sensor such that, when the high speed motive force is applied, only the flexible analyte sensor moves at least partially through the guidance structure and at least partially passes through the exit port and is inserted into skin.
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Accused Products
Abstract
A device and method for delivering a device such as a sensor or fluid transport structure or a fluid transport structure sensor combination into, for example, mammalian skin. Such a device allows a sensor to penetrate mammalian skin without the use of an introducer device such as a needle. A device in accordance with embodiments of the present disclosure includes a housing for attachment to mammalian skin including an exit port for receiving the distal end of a biosensor and an injection activation device including a mechanism for forcing the sensing device from a first position within the housing, through the exit port to a second position, with sufficiently high velocity to partially penetrate the mammalian skin.
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Citations
23 Claims
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1. An insertion device, comprising:
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a guidance structure having an exit port and providing axial support to a flexible analyte sensor held therein, the guidance structure adapted to allow passage of the flexible analyte sensor upon application of a high speed motive force to the flexible analyte sensor, the high speed motive force is about 11 Newtons to about 53 Newtons; and an injection activation device associated with the guidance structure, the injection activation device having a mechanism adapted to apply the high speed motive force solely to the flexible analyte sensor such that, when the high speed motive force is applied, only the flexible analyte sensor moves at least partially through the guidance structure and at least partially passes through the exit port and is inserted into skin. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An insertion device, comprising:
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a guidance structure having an exit port and providing axial support to a flexible analyte sensor held therein, the guidance structure adapted to allow passage of the flexible analyte sensor upon application of a high speed motive force to the flexible analyte sensor, the high speed motive force is about 11 Newtons to about 53 Newtons; an injection activation device associated with the guidance structure, the injection activation device having a mechanism adapted to apply the high speed motive force to the flexible analyte sensor such that, when the high speed motive force is applied, the flexible analyte sensor moves at least partially through the guidance structure and at least partially passes through the exit port to cause insertion of only the flexible analyte sensor into skin; and a tensioning structure configured to tension a surface of the skin so that a distance from the surface of the skin at an insertion site on the surface of the skin to the exit port is less than the buckling length of the sensor, and wherein the guidance structure is configured so that an unsupported length of the flexible analyte sensor is less than a buckling length of the flexible analyte sensor. - View Dependent Claims (18)
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19. A method for autoinsertion of a flexible analyte sensor into animal skin comprising:
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placing a guidance structure on skin, the guidance structure having an exit port and providing axial support to a flexible analyte sensor held therein, the guidance structure adapted to allow passage of the flexible analyte sensor upon application of a high speed motive force to the flexible analyte sensor, the high speed motive force is about 11 Newtons to about 53 Newtons; and activating an injection activation device associated with the guidance structure, the injection activation device having a mechanism adapted to apply the high speed motive force solely to the flexible analyte sensor such that, when the high speed motive force is applied, only the flexible analyte sensor moves at least partially through the guidance structure and at least partially passes through the exit port. - View Dependent Claims (20, 21)
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22. A method for autoinsertion of a flexible analyte sensor into animal skin comprising:
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placing a guidance structure on skin, the guidance structure having an exit port and providing axial support to a flexible analyte sensor held therein, the guidance structure adapted to allow passage of the flexible analyte sensor upon application of a high speed motive force to the flexible analyte sensor, the high speed motive force is about 11 Newtons to about 53 Newtons; activating an injection activation device associated with the guidance structure, the injection activation device having a mechanism adapted to apply the high speed motive force to the flexible analyte sensor such that, when the high speed motive force is applied, the flexible analyte sensor moves at least partially through the guidance structure and at least partially passes through the exit port to cause insertion of only the flexible analyte sensor into skin, the guidance structure further comprising a tensioning structure configured to tension a surface of the skin so that a distance from the surface of the skin at an insertion site on the surface of the skin to the exit port is less than the buckling length of the sensor, and wherein the guidance structure is configured so that an unsupported length of the flexible analyte sensor is less than a buckling length of the flexible analyte sensor. - View Dependent Claims (23)
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Specification