Flexible device for introducing a medical apparatus into a body

• US 8,267,949 B2
• Filed: 12/22/2008
• Issued: 09/18/2012
• Est. Priority Date: 06/22/2006
• Status: Expired due to Fees

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diagnostics International AG (Roche Holding AG), Roche Diagnostics Operations Incorporated (Roche Holding AG)
• Inventors: List, Hans, Fuerst, Otto, Haar, Hans-Peter, Haueter, Ulrich, Harttig, Herbert, Pill, Johannes
• Primary Examiner(s): Severson, Ryan
• Assistant Examiner(s): Miles, Jonathan W
• Application Number:
  US12/341,088
• Publication Number:
  US 20090182289A1
• Time in Patent Office: 1,366 Days
• Field of Search: 606/170, 604/22, 604/115, 604/164.01, 604/164.03, 604/164.06, 604/523, 604/524, 604/525, 604/528, 604/531, 600/184
• US Class Current: 606/170
• CPC Class Codes: A61B 17/3417 Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating syringe needles A61M5/32; dilators A61M29/00
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 17/3468 for implanting or removing devices, e.g. prostheses, implants, seeds, wires devices for implanting seeds A61M37/0069
• CPC Class Codes: A61B 2017/2905 flexible
• CPC Class Codes: A61B 2017/3405 using mechanical guide means
• CPC Class Codes: A61B 2017/3492 against the outside of the body
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/14865 invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors
• CPC Class Codes: A61B 5/6848 Needles

Abstract

An introducing device for introduction of a medical device into a body is described which has a distal region with a tip region for generating an opening in the skin, and a segment region which comprises at least two sections which, in a rigid state, are essentially rigidly connected at least to one another and to the distal region and which are movable relative to one another in a flexible state. Furthermore, a system is described in which a sensor is integrated into the device for introduction into a body.

Claims

1. An introducing device for introducing a medical device into a body, comprising:

a distal region which has a tip region structured to generate an opening in skin;

a segment region having more than two discontinuous sections that are essentially rigidly connected to at least one another and to the distal region in a first rigid, linear state for introducing the device and the more than two discontinuous sections are movable relative to one another in a flexible state after the device has been introduced, wherein the more than two discontinuous sections are rigidly connected to one another and to the distal region in the first rigid, linear state by an immobilizing agent and wherein the immobilizing agent is configured to dissolve or degrade into the body causing the more than two discontinuous sections to change from the first rigid, linear state to the flexible state.

2. The device according to claim 1, further comprising a forming element that is connected to more than one of the discontinuous sections and configured to selectively move the more than two discontinuous sections from a spaced apart position relative to each other into contact with each other in a second rigid state subsequent to the flexible state.

3. The device according to claim 1, wherein the device is hollow in at least one of a part of the distal region and at least in a part of the more than two discontinuous sections.

4. The device according to claim 1, wherein the more than two discontinuous sections consist of essentially rigid segments.

5. The device according to claim 4, wherein the more than two discontinuous sections are held together by a forming element.

6. The device according to claim 5, wherein the forming element is a pull wire.

7. The device according to claim 6, wherein the pull wire contracts when the temperature increases.

8. The device according to claims 6, wherein the pull wire is tightened by a pulling device.

9. The device according to claim 1, wherein the more than two discontinuous sections are covered with a membrane.

10. The device according to claim 9, wherein the membrane is permeable and flexible.

11. The device according to claim 9, wherein the membrane contains the immobilizing agent.

12. The introducing device of claim 1 wherein the more than two discontinuous sections comprises at least five discontinuous sections in the second rigid, linear state.

13. An introducing device for introducing a medical device into a body, comprising:

a distal region having a tip that is configured to generate an opening in skin;

a segment region having more than two discontinuous sections;

a flexible and permeable membrane that encloses the more than two discontinuous sections; and

a flexible member connected to at least one of the discontinuous sections and configured to move the more than two discontinuous sections from a spaced apart position relative to each other into abutting engagement with each other in a rigid, linear state upon advancement of the flexible member in a direction away from the distal region.

14. The introducing device of claim 13 wherein the more than two discontinuous sections are rigidly connected to one another and to the distal region by an immobilizing agent in a rigid state, wherein the immobilizing agent is configured to one of dissolve or degrade into the body causing the at least more than two sections to move from the rigid state to a flexible state.

15. The introducing device of claim 13 wherein the flexible member comprises a pull wire.

16. The introducing device of claim 15 wherein the pull wire contracts when the temperature increases.

17. The introducing device of claim 13 wherein the more than two discontinuous sections comprises at least ten discontinuous sections that are configured to collectively form a gradual radius within the membrane in a flexible state and are configured to collectively form a linear arrangement in the rigid, linear state.

18. The introducing device of claim 13, further comprising a sensor region disposed intermediate the distal region and the segment region, the sensor region configured to at least partially house the medical device at a position proximally relative to the distal region.

19. The introducing device of claim 13 wherein the more than two discontinuous sections are in a rigid, linear state along a majority of the segment region.

20. An introducing device for introducing a medical device into a body, comprising:

a distal region having a closed tip that is configured to generate an opening in skin;

a segment region having more than two discontinuous segments;

a sensor region disposed intermediate the distal region and the segment region, the sensor region configured to at least partially house the medical device at a position proximally relative to the distal region;

a flexible membrane that encloses the more than two discontinuous segments;

an immobilizing agent disposed on the more than two discontinuous segments that locks the more than two discontinuous segments from relative movement in a rigid, linear insertion state, the immobilizing agent configured to one of dissolve or degrade into the body causing the more than two discontinuous segments to be in a flexible state.

21. The introducing device of claim 20, further comprising a flexible member connected to more than one of the discontinuous segments and configured to move the more than two discontinuous segments together into a rigid, linear configuration upon advancement of the flexible member in a direction away from the distal region subsequent to the one of dissolving or degrading of the immobilizing agent into the body.

22. The introducing device of claim 20 wherein the flexible member comprises a pull wire.

23. The introducing device of claim 22 wherein the pull wire contracts when the temperature increases.

24. The introducing device of claim 20 wherein the more than two discontinuous segments comprises at least ten discontinuous segments that are configured to collectively form a gradual radius within the membrane in a flexible state and are configured to collectively form a linear arrangement in the rigid, linear configuration.