Medical puncturing device

• US 20050090784A1
• Filed: 11/23/2004
• Published: 04/28/2005
• Est. Priority Date: 07/14/1998
• Status: Abandoned Application

• Current Assignee: Unomedical A/S
• Original Assignee: Maersk Medical AS
• Inventors: Mathiasen, Orla, Teisen-Simony, Claude, Larsen, Bjorn Gullak, Delzac, Marc, Nielsen, Jan Willum
• Application Number:
  US10/996,147
• Publication Number:
  US 20050090784A1
• Time in Patent Office: Days
• US Class Current: 604/263
• CPC Class Codes: A61M 2005/1581 Right-angle needle-type devices
• CPC Class Codes: A61M 2005/1585 Needle inserters
• CPC Class Codes: A61M 25/0631 having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle
• CPC Class Codes: A61M 5/3216 Caps placed transversally onto the needle, e.g. pivotally attached to the needle base
• CPC Class Codes: Y10S 128/919 Syringe, means to protect user

Abstract

The invention relates to a medical puncturing device comprising a rigid needle being at one end adapted for facilitating the puncturing and comprising at the opposite end a hub, the hub comprising a handle part and a shield part being pivotable in relation to the handle part and further comprising locking means on the shield part and the handle part, the locking means being adapted to interlock the shield and the handle part in a pivoted position of the shield part where the rigid needle is covered by this.

Claims

1-10. -10. (canceled)

11. An infusion device comprising:

a housing;

a soft cannula extending from the housing, said soft cannula having an outer tip;

a puncturing device adapted to be connected to said housing, said puncturing device comprising a rigid needle being adapted to extend through the cannula and beyond the outer tip thereof when the puncturing device is connected to said housing, said rigid needle being at one end adapted for facilitating puncturing and including at the opposite end a hub;

said hub having a hinge, a handle part and a single shield part with a first end and a second free end, said first end of the shield part being pivotably connected to the handle part by means of said hinge, whereby said second free end is pivotable with respect to said hinge;

said shield part being adapted to cover the rigid needle when pivoted with respect to said hinge, the second free end of the shield part extending beyond said one end of the rigid needle; and

said hub further having a locking mechanism on the shield part and the handle part, the locking mechanism being adapted to interlock the shield and the handle part in a pivoted position of the shield part when the puncturing device is disconnected from the housing and the shield part is pivoted to cover at least a portion of the rigid needle.

12. The infusion device as claimed in claim 11, wherein the shield part comprises a recess for accommodating the rigid needle.

13. The infusion device as claimed in claim 11, wherein the shield part has an essentially U-shaped cross section.

14. The infusion device as claimed in claim 11, wherein the locking mechanism on the handle part comprises two arms having on their opposed sides barbs adapted to interlock with the corresponding locking mechanism of the shield part.

15. The infusion device as claimed in claim 14, wherein the edges of the barbs are tapered so as to facilitate the insertion into the corresponding locking mechanism of the shield part.

16. The infusion device as claimed in claim 15, wherein the hub is formed as a single part and where the hinge between the handle part and the shield part is an area with a reduced rigidity.

17. The infusion device as claimed in claim 15, wherein the hub is made of a plastics material.

18. The infusion device as claimed in claim 15, wherein gripping means are provided on the shield part and the handle part, said gripping means being adapted to lock the hub to the housing.

19. The infusion device as claimed in claim 11, wherein the locking mechanism on the shield part comprises two side flanges adapted to interlock with the corresponding locking mechanism of the handle part.

20. The infusion device as claimed in claim 19, wherein the edges of the flanges are tapered so as to facilitate the insertion into the corresponding locking mechanism of the handle part.

21. The infusion device as claimed in claim 11, wherein the shield part comprises an operating handle, the operating handle thereby being pivotable with respect to the handle part of the hub.

22. The infusion device as claimed in claim 11, wherein the hub is formed as a single part and where the hinge between the handle part and the shield part is an area with a reduced rigidity.

23. The infusion device as claimed in claim 11, wherein the hub is made of a plastics material.

24. The infusion device as claimed in claim 11, wherein gripping means are provided on the shield part and the handle part, said gripping means being adapted to lock the hub to the housing.

25. The infusion device as claimed in claim 11, wherein gripping means are provided on the shield part and the handle part, said gripping means being adapted to lock the hub to the housing, wherein the shield part comprises an operating handle, the operating handle being pivotable with respect to the handle part of the hub, and wherein pressing the handle part against the operating handle will release the gripping means and thereby the puncturing device from the housing.

26. An infusion device comprising:

a housing;

a cannula extending from said housing;

a hub adapted to be removably connected to said housing, said hub and said housing connected at least partially by a pair of projecting arms, each arm having a barb portion, said arms extending from said hub;

a needle having a first end mounted in said hub, said needle adapted to extend through said cannula, and

a shield hingedly connected to said hub,

wherein said shield is pivotable to cover at least a portion of said needle when said hub is removed from said housing.

27. The infusion device of claim 26 wherein said shield bends said needle when said shield is pivoted to cover at least a portion of said needle.

28. The infusion device of claim 26 wherein said housing further comprises a medication bore within the housing for leading medication to said cannula.

29. The infusion device of claim 26 wherein said housing further comprises a cavity formed within said housing and connected to said cannula.

30. The infusion device of claim 26 wherein said hub and said shield are integrally molded together.

31. The infusion device of claim 26 wherein said hub is substantially rectangularly shaped.

32. The infusion device of claim 26 wherein said shield has a substantially U-shaped cross section.

33. An infusion device comprising:

a hub comprising;

a handle having a needle mounted thereto and a pair of retaining arms extending from said handle;

an elongated shield extending from said handle and rotatable relative to said handle; and

an infusion housing releasably engaged by said arms, said housing having a cannula extending therefrom, wherein at least a portion of said needle extends through said housing and said cannula.

34. The infusion device of claim 33 wherein said shield is hingedly connected to said handle.

35. The infusion device of claim 33 wherein said shield is rotatable to cover at least a portion of said needle.

36. The infusion device of claim 33 wherein said handle and said shield are integrally molded together.

37. The infusion device of claim 33 wherein said shield further comprises a pair of flanges along at least a portion of said shield, said flanges being adapted to engage said arms when said shield covers at least a portion of said needle.

38. The infusion device of claim 33 wherein said handle is substantially rectangularly shaped.

39. The infusion device of claim 33 wherein said shield has a substantially U-shaped cross section.

40. The infusion device of claim 33 wherein said hub is formed from a plastics material.

41. The infusion device of claim 33 wherein said infusion housing further comprises a cavity.

42. The infusion device of claim 33 wherein said handle is configured to be retained within an inserter device.

43. An infusion device comprising:

a housing;

a cannula extending from said housing for delivery of medication through said cannula; and

a hub removably connected to said housing, said hub comprising;

a needle having a first end extending at least partially through said cannula when said hub is connected to said housing;

a handle fixedly attached to an opposing end of said needle; and

a shield hingedly connected to said handle, and adapted to cover at least a portion of said needle after said hub is removed from said housing.

44. The infusion device of claim 43 wherein said handle is configured to be retained within an inserter device.

45. The infusion device of claim 43 wherein said handle is substantially rectangularly shaped.

46. The infusion device of claim 43 wherein said shield engages said handle when said shield is positioned to cover at least a portion of said needle.

47. The infusion device of claim 43 further comprising retaining means extending from said handle.

48. The infusion device of claim 47 wherein said retaining means are a pair of opposing legs.

49. The infusion device of claim 47 wherein said retaining means is configured to retain said hub against said housing.

50. The infusion device of claim 47 wherein said hub is adapted for placement and engagement with said housing down a center line of said housing.

51. The infusion device of claim 43 wherein said shield has a substantially U-shaped cross section.

52. The infusion device of claim 43 wherein said hub is formed from a plastics material.

53. The infusion device of claim 43 wherein said shield bends said needle when said shield at least partially covers said needle.

54. The infusion device of claim 43 wherein said infusion housing further comprises a cavity.

55. The infusion device of claim 43 wherein said housing further comprises a medication bore within the housing for leading medication to said cannula.

56. A medical puncturing device comprising:

a hub having a pair of retaining members for removable attachment of said hub to an infusion device;

a shield portion extending rearwardly from said retaining members of said hub in a first position; and

a needle extending from said hub, wherein said needle is adapted to extend though a cannula of said infusion device;

wherein said shield may be pivoted into a position where at least a portion of said needle is covered.

57. The medical puncturing device of claim 56 wherein said shield is locked with said hub when said shield is covering at least a portion of said needle.

58. The medical puncturing device of claim 56 further comprising a handle portion upstanding from said first portion.

59. The medical puncturing device of claim 58 wherein said handle portion is substantially rectangularly shaped.

60. The medical puncturing device of claim 58 wherein said handle portion is configured to be retained within an inserter device.

61. The medical puncturing device of claim 56 wherein said shield has a substantially U-shaped cross section.

62. The medical puncturing device of claim 56 wherein said pair of retaining members is configured to retain said hub against said infusion device.

63. The medical puncturing device of claim 56 wherein said shield bends said needle when said shield is pivoted to said position wherein at least a portion of said needle is covered.

64. A medical puncturing device comprising:

a handle defining a needle retaining portion, said needle retaining portion being substantially rectangular in cross section and having a needle extending therefrom, said needle having a second end for puncturing the skin of a patient;

a shield flexibly connected to said handle, a portion of said shield extending rearwardly from said handle in a first position and away from said needle, said portion being substantially U-shaped in cross section; and

a pair of protrusions extending from said shield, said protrusions adapted for retention of said shield with said handle when said shield is in a position covering at least a portion of said needle.

65. The medical puncturing device of claim 64 wherein said handle portion is configured to be retained within an inserter device.

66. The medical puncturing device of claim 64 wherein said shield has a substantially U-shaped cross section.

67. The medical puncturing device of claim 64 wherein said shield extends substantially perpendicularly to said needle in said first position.

68. The medical puncturing device of claim 64 wherein said shield bends said needle when said shield is pivoted into a position covering at least a portion of said needle.

69. The medical puncturing device of claim 64 wherein said protrusions are elongated an extend along at least a portion of said length of said shield.

70. A medical puncturing device comprising:

a substantially rectangularly shaped handle having a pair of retaining arms extending therefrom, said arms being adapted to removably connect said device to an infusion set;

a needle having a first end mounted in said handle and a second end extending downward from said handle; and

a shield pivotally connected to said handle, said shield having a portion extending substantially rearwardly in a first position to allow connection of said device to an infusion set;

wherein said shield pivots with respect to said handle wherein said shield covers at least a portion of said needle.

71. The medical puncturing device of claim 70 wherein said handle is substantially rectangularly shaped.

72. The medical puncturing device of claim 70 wherein said handle is adapted so a user can grasp said handle together with said infusion set.

73. The medical puncturing device of claim 70 wherein said handle is configured to be retained within an inserter device.

74. The medical puncturing device of claim 70 wherein said shield has a substantially U-shaped cross section.

75. The medical puncturing device of claim 70 wherein said pair of retaining arms is configured to retain said device against said infusion set.

76. The medical puncturing device of claim 70 wherein said shield bends said needle when said shield is pivoted into a position covering at least a portion of said needle.

77. A medical puncturing device comprising:

a handle defining a needle retaining portion;

a needle fixedly attached to said needle retaining portion and configured for insertion through an infusion housing;

a shield hingedly connected to said handle, a portion of said shield extending rearwardly from said handle in an unlocked position; and

a pair of gripping arms positioned on one of said shield and said handle for removable connection of said device to said infusion housing;

wherein said shield is adapted to engage said gripping arms and cover at least a portion of said needle.

78. The medical puncturing device of claim 77 wherein said handle is substantially rectangularly shaped.

79. The medical puncturing device of claim 77 wherein said handle is configured to be retained within an inserter device.

80. The medical puncturing device of claim 77 wherein said handle tapers inwardly from a base of said handle toward a distal end thereof.

81. The medical puncturing device of claim 77 wherein said handle includes an generally cylindrical inner wall structure integrated within a substantially rectangularly-shaped outer wall structure.

82. The medical puncturing device of claim 77 wherein said shield has a substantially U-shaped cross section.

83. The medical puncturing device of claim 77 wherein said pair of gripping arms is configured to retain said device against said infusion housing.

84. The medical puncturing device of claim 77 wherein said pair of gripping arms is mounted on said handle.

85. The medical puncturing device of claim 77 wherein said shield may be pivoted to cover at least a portion of said needle.

86. The medical puncturing device of claim 85 wherein said shield bends said needle when said shield is pivoted to cover said needle.

87. The medical puncturing device of claim 77 wherein said handle and said shield are integrally molded together.