Nova Patents
EP2549918B2

Medical device inserters and processes of inserting and using medical devices

Abstract

This record has no abstract on file.

EP2549918B2, drawing sheet 1
Sheet 1 of 98

Term

4.5 yearsleft in the term

Expires 24 March 2031.

  1. Priority
  2. Filed
  3. Granted
  4. Today
  5. Expires

12 claims: 2 independent, 10 dependent

  1. 1
    An apparatus (200) (300) (400) (2400) (2500) (2700) (3700) for inserting a medical device (14) into the skin of a subject, which comprises:a sheath (242) (342) (442) (2512) (2708) (3708) defining a distal surface for placement on a skin surface;a device support (430) (3702) movable between a proximal position and a distal position that is closer to the skin surface, and adapted to support a medical device;a sharp support movable between the proximal position and the distal position that is closer to the skin surface and adapted to support a sharp (224) (324) (424) (2404) (2550) for inserting the medical device under the skin surface and extending through a portion of the device support;a handle (302) (402) (2502) (2702) (3702) movable between a proximal position and a distal position relative to the sheath and adapted to urge the device support and the sharp support from the proximal position to the distal position to insert the sharp under the skin surface;and a driver (246) (346) (446) (2406) (2544) for advancing the sharp support towards the proximal position when the sharp support reaches the distal position;wherein the device support (430) (3702) includes a first engagement member (474) (475) for releasably coupling the device support to the sharp support (428) (434) (436) and a second engagement member (3727) (3732) for engaging the medical device;and further characterised in that the sheath (242) (342) (442) (2512) (2708) (3708) has at least one biased retention feature (2440) (2518) (2726) (3726);and advancing the handle (302) (402) (2502) (2702) (3702) from the proximal position to the distal position comprises applying a minimum force to the handle overcome the at least one biased retention feature to allow distal movement of the handle relative to the sheath, and a force applied to the handle moves the sheath into the handle and moves the medical device from the proximal position to the distal position and inserts the sharp under the skin surface.
  2. 8
    A method for using a medical device (14) comprising:providing an apparatus comprising a sheath (242) (342) (442) (2512) (2708) (3708) defining a distal surface, a device support (430) (3702) adapted to support a medical device (14), a sharp support (428) (434) (436) adapted to support a sharp (224) (324) (424) (2404) (2550) extending through a portion of the device support, a handle (302) (402) (2502) (2702) (3702) movable relative to the sheath, and a driver (246) (346) (446) (2406) (2544) for displacing the sharp support;disposing the distal surface of the sheath on a skin surface (S);displacing the handle in a first longitudinal direction such that the sheath moves into the handle;displacing the sharp support in the first longitudinal direction, the sharp support displacing the sharp and the medical device;inserting the sharp and the medical device under the skin surface;releasing the driver;and displacing the sharp in a second longitudinal direction by the driver;characterised in that the sheath (242) (342) (442) (2512) (2708) (3708) has at least one biased retention feature (2440) (2518) (2726) (3726);and displacing the handle (302) (402) (2502) (2702) (3702) in the first longitudinal direction comprises applying a minimum force to the handle overcome the at least one biased retention feature to allow distal movement of the handle relative to the sheath, and displacing the handle in the first longitudinal direction displaces the device support in the first longitudinal direction and inserts the sharp and the medical device under the skin surface.
  3. 10
    The method of claims 8 or 9, wherein delivering the medical device (14) to the subject comprises releasing the medical device from the device support (430) (3702), preferably wherein releasing the medical device from the device support comprises allowing one or more movable arms (3762) (3762') on the device support to displace radially outwardly.
Independent claims3