INSERTER DEVICE INCLUDING ROTOR SUBASSEMBLY

• US 20110106126A1
• Filed: 08/31/2010
• Published: 05/05/2011
• Est. Priority Date: 08/31/2009
• Status: Abandoned Application

• Current Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories)
• Original Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories)
• Inventors: Love, Michael, Saravia, Heber, Lee, Daniel H.
• Application Number:
  US12/873,133
• Publication Number:
  US 20110106126A1
• Time in Patent Office: Days
• US Class Current: 606/182
• CPC Class Codes: A61B 2560/063 Devices specially adapted for delivering implantable medical measuring apparatus
• 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 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150427 Specific tip design, e.g. for improved penetration characteristics
• CPC Class Codes: A61B 5/150435 Specific design of proximal end
• CPC Class Codes: A61B 5/150503 Single-ended needles hollow piercing element tip design A61B5/150396, needle sets for catheters A61M25/06, needles for bringing media into the body A61M5/32
• CPC Class Codes: A61B 5/15087 short range, e.g. between console and disposable using implanted devices A61B5/150877
• CPC Class Codes: A61B 5/15113 Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
• CPC Class Codes: A61B 5/15117 comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
• CPC Class Codes: A61B 5/15128 comprising 2D- or 3D-shaped elements, e.g. cams, curved guide rails or threads comprising tooth-shaped elements A61B5/15132
• CPC Class Codes: A61B 5/15132 comprising tooth-shaped elements, e.g. toothed wheel or rack and pinion
• CPC Class Codes: A61B 5/1519 comprising driving means, e.g. a spring, for propelling the piercing unit
• CPC Class Codes: A61B 5/15194 fully automatically retracted, i.e. the retraction does not require a deliberate action by the user, e.g. by terminating the contact with the patient's skin
• CPC Class Codes: A61B 5/155 Devices specially adapted for continuous or multiple sampling, e.g. at predetermined intervals devices loaded with multiple lancets simultaneously A61B5/15146
• CPC Class Codes: A61B 5/157 Devices characterised by integrated means for measuring characteristics of blood

Abstract

An inserter subassembly including a rotor and drive member such that rotation of the rotor is translated to a linear motion including insertion and refraction paths.

Claims

1. An inserter subassembly for insertion of a medical device into the skin of a subject, comprising:

a rotor capable of moving along a rotational path;

a driver member engaged to the rotor, wherein the driver is capable of urging the rotor along the rotational path;

a shuttle configured to receive a medical device to be inserted into a subject, the shuttle being coupled to the rotor,

wherein the shuttle is urged along a reciprocal linear path comprising an insertion direction and a retraction direction, as the rotor moves along the rotational path.

2. The inserter assembly of claim 1, wherein the medical device to be inserted into a subject comprises an analyte sensor, infusion set, or lancing device.

3. The inserter assembly of claim 1, wherein the rotor is a disc shaped member.

4. The inserter subassembly of claim 1, wherein the rotor comprises a pin to engage the shuttle.

5. The inserter subassembly of claim 4, wherein the shuttle comprises a channel to receive the rotor pin.

6. The inserter subassembly of claim 5, wherein the channel has a linear, non-linear, curved, angled, horizontal, pocket, slot, or pocket configuration.

7. The inserter subassembly of claim 6, wherein the pin and channel engagement translates a single direction rotation of the rotor to the reciprocal linear path toward the insertion direction and the retraction direction.

8. The inserter subassembly of claim 1, wherein the driver member is a spring.

9. The inserter subassembly of claim 8, wherein the spring comprises a torsion drive spring, a constant force spring, or a spiral torsion spring.

10. The inserter subassembly of claim 1, wherein the driver member comprises a rack, and further wherein the rotor comprises a pinion.

11. The inserter subassembly of claim 1, wherein the driver member comprises a linkage member having a first end secured to the rotor and a second end secured to the shuttle.

12. The inserter subassembly of claim 11, wherein the linkage member translates the rotational path of the rotor to a linear path of the shuttle.

13. The inserter subassembly of claim 1, wherein the rotor engages a cam disposed on the shuttle to urge the shuttle downward towards an insertion position.

14. The inserter subassembly of claim 13, wherein a spring member urges the shuttle upward towards a retraction position.

15. An inserter assembly for an analyte monitoring system, the inserter assembly comprising:

a housing;

a rotor capable of moving along a rotational path;

a driver member engaged to the rotor, wherein the driver is capable of urging the rotor along the rotational path;

a shuttle configured to receive an object to be inserted into a subject, the shuttle being coupled to the rotor and movably connected to the housing, wherein the shuttle is urged along a linear reciprocal path toward an insertion direction and a retraction direction as the rotor moves along the rotational path,

an introducer sharp coupled to the shuttle, the introducer sharp configured to releasably receive a sensor; and

a sensor releasably coupled to the introducer sharp.

16. The inserter assembly of claim 15, wherein the housing defines a guide to maintain the shuttle along the linear path.

17. The inserter assembly of claim 16, wherein the housing further comprising a lid portion defining the guide.

18. The inserter assembly of claim 15, wherein the rotor is a disc shaped member.

19. The inserter assembly of claim 15, wherein the rotor has a non-circular shape.

20. The inserter assembly of claim 15, wherein the rotor comprises a pin to engage the shuttle.

21. The inserter assembly of claim 20, wherein the shuttle comprises an elongated channel to receive the rotor pin.

22. The inserter assembly of claim 21, wherein the elongated channel has a linear configuration.

23. The inserter assembly of claim 21, wherein the elongated channel has a curved configuration.

24. The inserter assembly of claim 21, wherein the pin and channel engagement translates a single direction rotation of the rotor to the reciprocal linear path toward the insertion and refraction direction.

25. The inserter assembly of claim 15, wherein the driver member is a spring.

26. The inserter assembly of claim 25, wherein the spring is a torsion drive spring, a constant force spring, or a spiral torsion spring.

27. The inserter assembly of claim 25, wherein the driver member comprises a rack and the rotor comprises a pinion.

28. The inserter assembly of claim 15, wherein the driver member comprises a linkage member having a first end secured to the rotor and a second end secured to the shuttle.

29. The inserter assembly of claim 15, wherein the rotor engages a cam disposed on the shuttle to urge the shuttle downward towards an insertion position.

30. The inserter assembly of claim 29, further comprising a spring member to urge the shuttle upward towards a retraction position.

31. The inserter assembly of claim 15, wherein the rotor comprises a protrusion configured to engage at least one of the housing or the shuttle to slow down rotation of the rotor.

32. The inserter assembly of claim 15, further including an actuator to actuate the driver member such that the shuttle is urged towards the insertion direction.

33. The inserter assembly of claim 32, wherein the actuator is configured to release the driver member from a compressed configuration towards an expanded configuration.

34. The inserter assembly of claim 32, wherein the actuator comprises a safety to impede the actuator until the safety is deactivated.

35. The inserter assembly of claim 32, wherein the actuator comprises an engagement member configured to engage the rotor.

36. The inserter assembly of claim 35, wherein the engagement between the actuator engagement member and the rotor inhibits rotational motion of the rotor.

37. The inserter assembly of claim 36, wherein the engagement member engages the rotor following a predetermined rotation of the rotor.

38. The inserter assembly of claim 36, wherein the rotor comprises a protrusion configured to engage the engagement member.

39. The inserter assembly of claim 35, wherein the engagement member is a crush rib.

40. The inserter assembly of claim 35, wherein the engagement member is fabricated from a material having a lower durometer than the actuator.

41. The inserter assembly of claim 35, wherein the engagement member is fabricated from an elastomeric material.

42. The inserter assembly of claim 15, wherein the sensor is released from the inserter assembly at an insertion site.

43. The inserter assembly of claim 15, wherein the sensor is at least partially implanted in a subject at an insertion site.

44. The inserter assembly of claim 15, further comprising a mounting unit adapted to attach to a subject'"'"'s body at an insertion site.

45. The inserter assembly of claim 44, wherein the mounting unit is adapted to position the sensor with respect to the subject'"'"'s skin.