Insertion head for medical or pharmaceutical applications

• US 8,636,697 B2
• Filed: 02/12/2007
• Issued: 01/28/2014
• Est. Priority Date: 08/13/2004
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diagnostics International AG (Roche Holding AG)
• Inventors: Scheurer, Simon, Hunn, Marcel, Liniger, Jrg
• Primary Examiner(s): Mehta, Bhisma
• Assistant Examiner(s): OSINSKI, BRADLEY JAMES
• Application Number:
  US11/673,939
• Publication Number:
  US 20070129688A1
• Time in Patent Office: 2,542 Days
• Field of Search: 604/263, 604104-110, 604/177, 604/198, 604/174, 604/158, 604/164.08, 604/93.01
• US Class Current: 604/174
• CPC Class Codes: A61M 25/0097 characterised by the hub connectors A61M39/10
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body
• CPC Class Codes: A61M 25/0606 "Over-the-needle" catheter assemblies, e.g. I.V. catheters
• 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 5/3216 Caps placed transversally onto the needle, e.g. pivotally attached to the needle base

Abstract

An insertion head for medical or pharmaceutical uses including a housing with a side that can be positioned on tissue and a penetrating device with a tip, the penetrating device carried by the housing in a protected orientation in which the housing covers the tip and a penetrating orientation in which the tip protrudes, wherein the penetrating orientation is angled relative to the protected orientation.

Claims

1. An insertion head for medical or pharmaceutical applications, the insertion head comprising:

a) a housing with an underside which can be positioned on organic tissue and a support surface facing away from the underside; and

b) a puncturing device comprising a puncturing section with a tip and a handle, the puncturing device movably held by the housing such that the puncturing device moves from an initial, protected position in which the housing covers the tip and the puncturing section is substantially parallel to the organic tissue, to a puncturing position in which the tip projects beyond the underside,

wherein the puncturing section comprises a flexible penetrating element and a stabilizing element for the penetrating element, in the puncturing position the puncturing section is tilted relative to its position in the protected position, in the puncturing position the distal end of the flexible penetrating element is oriented in the same direction as the distal end of the stabilizing element, and the handle rests on the support surface when the puncturing device is in the protected position.

2. The insertion head according to claim 1, wherein the puncturing device is permanently connected to the housing such that it is movable from the protected position to the puncturing position.

3. The insertion head according to claim 1, wherein the puncturing section is connected to the housing in a swiveling manner.

4. The insertion head according to claim 1, wherein the puncturing device and the housing form with one another an articulation with an axis of articulation about which the puncturing device is rotatable relative to the housing.

5. The insertion head according to claim 4, wherein the axis of articulation is generally transverse to the puncturing section.

6. The insertion head according to claim 1, wherein the housing also holds the puncturing device in a predetermined further puncturing position, wherein the puncturing section in one of the puncturing positions has an inclination with respect to the bottom side which is different from that in the other puncturing position.

7. The insertion head according to claim 1, wherein the housing holds the puncturing device either positively and/or non-positively in a catching connection in at least one of the positions.

8. The insertion head according to claim 1, wherein the housing comprises a receptacle which, in the protected position, receives at least the tip of the puncturing section.

9. The insertion head according to claim 8, wherein the receptacle is open toward an outer side of the housing.

10. The insertion head according to claim 9, wherein the receptacle is open toward the underside.

11. The insertion head according to claim 8, wherein the puncturing device comprises a connecting structure connected to the housing in an articulated manner and from which the puncturing section projects, and in that the receptacle opens toward the connecting structure.

12. The insertion head according to one claim 1, wherein the puncturing section comprises or is a line element for a fluid.

13. The insertion head according to claim 12, wherein the puncturing device comprises a fluid chamber with a fluid connection connected to the line element and a seal for the fluid connection.

14. The insertion head according to claim 1, wherein the puncturing device comprises a connecting structure connected to the housing, the puncturing section projecting from the connecting structure.

15. The insertion head according to claim 14, wherein the connecting structure has a connection for a fluid or signals.

16. The insertion head according to claim 14, wherein the housing and the connecting structure form with one another an articulation by which the puncturing device is movably connected to the housing between catching positions in which the connecting structure and the housing catch.

17. The insertion head according to claim 14, wherein the handle projects from the connecting structure and is releasably connected thereto.

18. The insertion head according to claim 14, wherein the stabilizing element is releasably connected to the connecting structure.

19. The insertion head according to claim 18, wherein the handle holds the stabilizing element at a proximal end.

20. The insertion head according to claim 19, wherein the stabilizing element is attached to the connecting structure by a catching connection.

21. The insertion head according to claim 1, wherein the puncturing section comprises a puncturing needle, which remains in the tissue during the application.

22. The insertion head according to claim 1, wherein the puncturing section is or comprises a puncturing needle which remains in the tissue during the application, and wherein the flexibility of the puncturing needle increases upon contact with the tissue.

23. The insertion head according to claim 22, wherein the puncturing needle consists at least partially of a polymer material which binds at least one component of a body fluid, and wherein the flexibility of the puncturing needle increases as a result of the binding.

24. The insertion head according to claim 1, wherein the handle projects from the housing for handling the insertion head when placing the insertion head on the tissue or removing the insertion head from the tissue.

25. The insertion head according to claim 1, further comprising a connector having a line element for a fluid or signals which can be attached to the puncturing device.

26. The insertion head according to claim 25, wherein the connector is mechanically connected to the housing.

27. The insertion head according to claim 26, wherein the handle holds the stabilizing element at a proximal end and the support surface forms a guide for the connector when the connector is connected to the puncturing device.

28. The insertion head according to claim 1, wherein the puncturing section is movable relative to the underside of the housing into an angular position between 0 and 90°

below the housing.

29. An insertion head comprising:

a) a housing comprising an underside, wherein a receptacle of the housing in the form of a hollow space opens toward the underside;

b) a penetrating structure with a tip, wherein the penetrating structure is held by a connecting structure of the housing and comprises a removable stabilizing element; and

c) at least one pivot pin on the connecting structure matching an articulated bushing formed by the housing to form a simple swivel joint, wherein the connecting structure holding the penetrating structure can pivot about the pivot pin to cause movement of the penetrating structure from an initial, protected orientation in which the tip of the penetrating structure is located within the receptacle and is arranged substantially parallel to the housing underside, to a penetrating orientation in which the tip of the penetrating structure protrudes below the receptacle and is angled relative to its position in the protected orientation.

30. The insertion head according to claim 29, further comprising a handle connected to the stabilizing element.

31. An insertion head comprising:

a) a housing comprising an underside, wherein a receptacle of the housing in the form of a hollow space opens toward the underside;

b) a penetrating structure with a tip, wherein the penetrating structure is held by a connecting structure of the housing;

c) at least one pivot pin on the connecting structure matching an articulated bushing formed by the housing to form a simple swivel joint, wherein the connecting structure holding the penetrating structure can pivot about the pivot pin to cause movement of the penetrating structure from an initial, protected orientation in which the tip of the penetrating structure is located within the receptacle and is arranged substantially parallel to the housing underside, to a penetrating orientation in which the tip of the penetrating structure protrudes below the receptacle and is angled relative to its position in the protected orientation; and

d) a handle comprising at least one hook-shaped catching element which releasably catches with a corresponding counter element in a recess of the connecting structure.