INSERTION SYSTEM FOR A MEDICAL DEVICE HAVING A SHEATH AND SHEATH FOR AN INSERTION SYSTEM FOR A MEDICAL DEVICE

• US 20100010615A1
• Filed: 07/01/2009
• Published: 01/14/2010
• Est. Priority Date: 07/08/2008
• Status: Abandoned Application

• Current Assignee: Biotronik VI Patent AG (Biotronik SE & Company KG)
• Original Assignee: Biotronik VI Patent AG (Biotronik SE & Company KG)
• Inventors: Lootz, Daniel, Hofmann, Eugen
• Application Number:
  US12/495,927
• Publication Number:
  US 20100010615A1
• Time in Patent Office: Days
• US Class Current: 623/1.110
• CPC Class Codes: A61F 2/88 the wire-like elements formed as helical or spiral coils forming a net-like or mesh-like structure A61F2/90
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2002/30024 differing in coefficient of friction
• CPC Class Codes: A61F 2250/0021 differing in coefficient of friction

Abstract

An insertion system (100) for a medical device (10), which is situated in an outer sheath (20) upon insertion, the outer sheath (20) at least regionally encompassing an inner shaft. The outer sheath (20) at least regionally has, at least on its inner side (29) facing toward the medical device (10), a structure (22, 32) which is complementary with an external-peripheral segmented structure (12) of the medical device (10) like a bolt-nut connection.

Claims

1. An insertion system for a medical device which is situated in an outer sheath upon insertion, comprising:

a) an outer sheath having an inner side, wherein the outer sheath has a structure which is complementary to an external-peripheral segmented structure of the medical device, wherein the structure is disposed at least partially on the inner side of the outer sheath which is complementary to an external-peripheral segmented structure of the medical device; and

,

b) an inner shaft at least partially encompassed by the outer sheath.

2. The insertion system of claim 1, wherein upon the release of the medical device, the complementary structure of the outer sheath can be positively guided in a rotational movement on the segmented structure.

3. The insertion system of claim 1 wherein the outer sheath is implemented as torsionally-rigid.

4. The insertion system of claim 1, wherein the distance which the outer sheath is movable per revolution in the axial direction is adapted to a pitch of the segmented structure.

5. The insertion system of claim 1, wherein the outer sheath has an external thread at least on its proximal end, using which a rotational movement in relation to the medical device is activatable.

6. The insertion system of claim 1, wherein the outer sheath comprises a low-friction polymer.

7. The insertion system of claim 1, wherein the outer sheath has an internal thread structure on the inner side as the complementary structure.

8. The insertion system of claim 1, wherein the outer sheath has a reinforcement to increase its torsional rigidity.

9. The insertion system of claim 1, wherein the outer sheath comprises a tube which has cuts having a pitch.

10. An outer sheath for an insertion system for a medical device, comprising:

an outer sheath having an inner side, wherein the outer sheath has a structure which is complementary to an external-peripheral segmented structure of the medical device, wherein the structure is disposed at least partially on the inner side of the outer sheath which is complementary to an external-peripheral segmented structure of the medical device; and

, an inner shaft at least partially encompassed by the outer sheath, wherein a threaded structure is disposed at least on the inner side, which allows the execution of a rotational movement around a complementarily implemented structure in the operating state.

11. The outer sheath of claim 10, wherein the structure is a sliding track or notch on the inner side.

12. The outer sheath of claim 11, wherein the sliding track is applied as a coating.

13. The outer sheath of claim 11, wherein the sliding track is a hardened area on the inner side.

14. The outer sheath of claim 10, further comprising a reinforcement to improve the torsional rigidity.

15. The outer sheath of claim 10, wherein an external thread is provided on one end.

16. The insertion system of claim 10, wherein the structure is a bolt-nut connection.