Insertion device

• US 20060173410A1
• Filed: 02/03/2005
• Published: 08/03/2006
• Est. Priority Date: 02/03/2005
• Status: Active Grant

• Current Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Inventors: Kavazov, Julian D., Moberg, Sheldon B., Cheney, Paul S. II, Griffin, Christopher G., Maule, Susie E., Holt, Mark D., Holecek, Arin N.
• Granted Patent: US 7,704,229 B2
• Time in Patent Office: Days
• US Class Current: 604/110
• CPC Class Codes: A61M 2005/1581 Right-angle needle-type devices
• CPC Class Codes: A61M 2005/1583 Needle extractors
• CPC Class Codes: A61M 2005/1585 Needle inserters
• CPC Class Codes: A61M 2025/028 having a mainly rigid support structure
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body
• CPC Class Codes: A61M 25/0612 Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
• CPC Class Codes: A61M 5/3216 Caps placed transversally onto the needle, e.g. pivotally attached to the needle base
• CPC Class Codes: A61M 5/3243 being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel devices for protecting guide needles in combination with catheters A61M25/0612

Abstract

An insertion device, generally used with an infusion set, including a needle being adapted for puncturing at one end and including at the opposite end a hub. The hub includes a handle part and a guard part that are capable of securing the needle through the use of locks. Locking structures are used to secure the insertion device in a position where the needle is covered in a locked position, avoiding unintended contact with the needle.

Claims

1. An insertion set, comprising:

a cannula housing of an infusion set including a cannula adapted to be inserted into the skin of a patient; and

an insertion device including

a hub removably attachable to a base of the cannula housing of the infusion set, including a handle part and a guard part, and

a needle attached to the hub, wherein the guard part is adapted to slide along the

handle part to cover the needle.

2. The insertion set of claim 1, wherein the insertion device further includes locks adapted to secure the needle in the guard part when the needle is covered by the guard part.

3. The insertion set of claim 1, wherein the needle is adapted to extend through the cannula of the cannula housing and beyond an outer tip thereof when the insertion device is attached to the cannula housing.

4. The insertion set of claim 1, wherein the handle part and the guard part form opposite parts of the hub, and wherein the guard part is adapted to slide along the handle part according to a direction pulled.

5. The insertion set of claim 1, wherein the handle part includes a ledge on an inner side of the handle part and the guard part is adapted to slide along the ledge towards the needle and into the side of the needle wherein the needle is bent upwards.

6. The insertion set of claim 5 wherein the hub includes an inner side and a needle notch housed inside the hub where a tip of the needle is directed when bent by the guard part.

7. The insertion set of claim 5, wherein the guard part continues to slide along the ledge on the inner side of the handle part until it reaches a positive stop.

8. The insertion set of claim 1, wherein the guard part and the hub form a needle recess to house the needle.

9. The insertion set of claim 1, wherein the guard part bends the needle into a needle recess formed as the guard part slides with respect to the handle part, and wherein the guard part and the hub cover the needle in a locked position.

10. The insertion set of claim 1, wherein locks are adapted to interlock the guard part with the handle part when the guard part is slid over the needle.

11. The insertion set of claim 10, wherein locks are detents on sides of the guard part and catches on sides of the handle part that correspond to the detents.

12. The insertion set of claim 11, wherein the detents snap into the catches when the guard part is slid along the handle part over the needle to lock the guard part and the handle part together wherein the needle is covered.

13. An insertion set, comprising:

a cannula housing of an infusion set including a cannula adapted to be inserted into the skin of a patient; and

an insertion device including

a hub removably attachable to a base of the cannula housing of the infusion set, including a handle part and a guard part,

a needle attached to the hub, wherein the guard part is adapted to cover the needle, and

a collapse part attached to the handle part.

14. The insertion set of claim 13, wherein the insertion device further includes locks adapted to secure the needle in the guard part when the needle is covered by the guard part.

15. The insertion set of claim 13, wherein the needle is adapted to extend through the cannula of the cannula housing and beyond an outer tip thereof when the insertion device is attached to the cannula housing.

16. The insertion set of claim 13, wherein the guard part includes a needle recess to house the needle.

17. The insertion set of claim 13, wherein the collapse part is on the hub opposite to the guard part and includes opposing walls that are biased to improve wall collapse when pressure is applied.

18. The insertion set of claim 17, wherein the hub includes an inner side and the collapse part is connected to a push block inside the hub.

19. The insertion set of claim 18, wherein the collapse part is capable of flexing inwards towards the needle and into the push block, and wherein the push block is moved into the needle to bend the needle up into a needle recess of the guard part.

20. The insertion set of claim 13, wherein the collapse part is composed of material that flexes without fracturing.

21. The insertion set of claim 13, wherein locks are catches positioned inside the hub on opposite sides that lock when pushed together.

22. The insertion set of claim 21, wherein the catches lock together when walls of the insertion device are collapsed in.

23. The insertion set of claim 22, wherein the catches lock the needle within the guard part.

24. An insertion device, comprising:

a hub removably attachable to a base of a cannula housing of an infusion set, including a handle part and a guard part, and

a needle attached to the hub, wherein the guard part is adapted to slide along the handle part to cover the needle.

25. The insertion device of claim 24 further including locks adapted to secure the needle in the guard part when the needle is covered by the guard part.

26. The insertion device of claim 24, wherein the needle is adapted to extend through a cannula of the cannula housing and beyond an outer tip thereof when the insertion device is attached to the cannula housing.

27. The insertion device of claim 24, wherein the handle part and the guard part form opposite parts of the hub, and wherein the guard part is adapted to slide along the handle part according to a direction pulled.

28. The insertion device of claim 24, wherein the handle part includes a ledge on an inner side of the handle part and the guard part is adapted to slide along the ledge towards the needle and into the side of the needle wherein the needle is bent upwards.

29. The insertion device of claim 28, wherein the hub includes an inner side and a needle notch housed inside the hub where a tip of the needle is directed when bent by the guard part.

30. The insertion device of claim 28, wherein the guard part continues to slide along the ledge on the inner side of the handle part until it reaches a positive stop.

31. The insertion device of claim 24, wherein the guard part and the hub form a needle recess to house the needle.

32. The insertion device of claim 24, wherein the guard part bends the needle into a needle recess formed as the guard part slides with respect to the handle part, and wherein the guard part and the hub cover the needle in a locked position.

33. The insertion device of claim 24, wherein locks are adapted to interlock the guard part to the handle part when the guard part is slid over the needle.

34. The insertion device of claim 33, wherein locks are detents on sides of the guard part and catches on sides of the handle part that correspond to the detents.

35. The insertion device of claim 34, wherein the detents snap into the catches when the guard part is slid along the handle part over the needle to lock the guard part and the handle part together wherein the needle is covered.

36. An insertion device, comprising:

a hub removably attachable to a base of a cannula housing of an infusion set, including a handle part and a guard part,

a needle attached to the hub, wherein the guard part is adapted to cover the needle, and

a collapse part attached to the handle part.

37. The insertion device of claim 36 further including locks adapted to secure the needle in the guard part when the needle is covered by the guard part.

38. The insertion device of claim 36, wherein the needle is adapted to extend through a cannula of the cannula housing and beyond an outer tip thereof when the insertion device is attached to the cannula housing.

39. The insertion device of claim 36, wherein the guard part includes a needle recess to house the needle.

40. The insertion device of claim 36, wherein the collapse part is on the hub opposite to the guard part and includes opposing walls that are biased to improve wall collapse when pressure is applied.

41. The insertion device of claim 40, wherein the hub includes an inner side and the collapse part is connected to a push block inside the hub.

42. The insertion device of claim 41, wherein the collapse part is capable of flexing inwards towards the needle and into the push block, and wherein the push block is moved into the needle to bend the needle up into a needle recess of the guard part.

43. The insertion device of claim 36, wherein the collapse part is composed of material that flexes without fracturing.

44. The insertion device of claim 36, wherein locks are catches positioned inside the hub on opposite sides that lock when pushed together.

45. The insertion device of claim 44, wherein the catches lock together when walls of the insertion device are collapsed in.

46. The insertion device of claim 45, wherein the catches lock the needle within the guard part.

47. A method for covering an insertion needle, comprising:

inserting a cannula into the skin of a patient with an insertion device, wherein the insertion device includes

a hub removably attachable to a base of a cannula housing of an infusion set, including a handle part and a guard part, and

a needle attached to the hub, wherein the guard part is adapted to slide along the handle part to cover the needle;

removing the insertion device from the cannula housing, and

covering the needle of the insertion device with the guard part.

48. The method of claim 47, wherein the insertion device further includes locks adapted to secure the needle in the guard part when the needle is covered by the guard part.

49. The method of claim 48, wherein the needle is locked within the guard part before disposing of the insertion device.

50. The method of claim 47, wherein the needle is adapted to extend through the cannula of the cannula housing and beyond an outer tip thereof when the insertion device is attached to the cannula housing.

51. The method of claim 47, wherein the handle part and the guard part form opposite parts of the hub, and wherein the guard part is adapted to slide along the handle part according to a direction pulled.

52. The method of claim 47, wherein the handle part includes a ledge on an inner side of the handle part and the guard part is adapted to slide along the ledge towards the needle and into the side of the needle wherein the needle is bent upwards.

53. The method of claim 52, wherein the hub includes an inner side and a needle notch housed inside the hub where a tip of the needle is directed when bent by the guard part.

54. The method of claim 52, wherein the guard part continues to slide along the ledge on the inner side of the handle part until it reaches a positive stop.

55. The method of claim 47, wherein the guard part and the hub form a needle recess to house the needle.

56. The method of claim 47, wherein the guard part bends the needle into a needle recess formed as the guard part slides with respect to the handle part, and wherein the guard part and the hub cover the needle in a locked position.

57. The method of claim 47, wherein locks are adapted to interlock the guard part to the handle part when the guard part is slid over the needle.

58. The method of claim 57, wherein locks are detents on sides of the guard part and catches on sides of the handle part that correspond to the detents.

59. The method of claim 58, wherein the detents snap into the catches when the guard part is slid along the handle part over the needle to lock the guard part and the handle part together wherein the needle is covered.

60. A method for covering an insertion needle, comprising:

inserting a cannula into the skin of a patient with an insertion device, wherein the insertion device includes

a hub removably attachable to a base of a cannula housing of an infusion set, including a handle part and a guard part,

a needle attached to the hub, wherein the guard part is adapted to cover the needle, and

a collapse part attached to the handle part;

removing the insertion device from the cannula housing, and

covering the needle of the insertion device with the guard part.

61. The method of claim 60, wherein the insertion device further includes locks adapted to secure the needle in the guard part when the needle is covered by the guard part.

62. The method of claim 61, wherein the needle is locked within the guard part before disposing of the insertion device.

63. The method of claim 60, wherein the needle is adapted to extend through the cannula of the cannula housing and beyond an outer tip thereof when the insertion device is attached to the cannula housing.

64. The method of claim 60, wherein the guard part includes a needle recess to house the needle.

65. The method of claim 60, wherein the collapse part is on the hub opposite to the guard part and includes opposing walls that are biased to improve wall collapse when pressure is applied.

66. The method of claim 65, wherein the hub includes an inner side and the collapse part is connected to a push block inside the hub.

67. The method of claim 66, wherein the collapse part is capable of flexing inwards towards the needle and into the push block, and wherein the push block is moved into the needle to bend the needle up into a needle recess of the guard part.

68. The method of claim 60, wherein the collapse part is composed of material that flexes without fracturing.

69. The method of claim 60, wherein locks are catches positioned inside the hub on opposite sides that lock when pushed together.

70. The method of claim 60, wherein the catches lock together when walls of the insertion device are collapsed in.

71. The method of claim 70, wherein the catches lock the needle within the guard part.