Systems for anchoring a medical device in a body lumen

• US 9,889,276 B2
• Filed: 03/31/2015
• Issued: 02/13/2018
• Est. Priority Date: 12/31/2002
• Status: Active Grant

• Current Assignee: Abbott Laboratories Incorporated
• Original Assignee: Abbott Laboratories Incorporated
• Inventors: Voss, Laveille Kao
• Primary Examiner(s): NGUYEN, TUAN VAN
• Application Number:
  US14/674,756
• Publication Number:
  US 20150273186A1
• Time in Patent Office: 1,050 Days
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• 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 2017/00592 Elastic or resilient implements
• CPC Class Codes: A61B 2017/00637 for sealing trocar wounds through abdominal wall
• CPC Class Codes: A61B 2017/00659 located only on one side of the opening
• CPC Class Codes: A61B 2017/00663 the implement being a suture
• CPC Class Codes: A61B 2017/00672 Locating means therefor, e.g. bleed back lumen
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2017/047 having at least one proximally pointing needle located at the distal end of the instrument, e.g. for suturing trocar puncture wounds starting from inside the body J-shaped suture needles A61B2017/0608
• CPC Class Codes: A61B 2017/0472 Multiple-needled, e.g. double-needled, instruments
• CPC Class Codes: A61B 2017/3484 Anchoring means, e.g. spreading-out umbrella-like structure
• CPC Class Codes: A61B 2017/3488 Fixation to inner organ or inner body tissue
• CPC Class Codes: A61F 2/064 with special features to facilitate anastomotic coupling anastomosis of natural blood vessels A61B17/11
• CPC Class Codes: A61M 25/04 in the body, e.g. expansible A61M25/10, A61M16/0488 take precedence

Abstract

A system for securing a device in tissue, having a sheath having a plurality of side openings; a rotatable element disposed within the sheath; and a plurality of curved projections extending from the rotatable element, wherein rotation of the rotatable element within the sheath pushes distal ends of each of the curved projections outwardly through one of the plurality of openings and into the tissue.

Claims

1. A system comprising:

an elongate member having an anchor member extending transversely from the elongate member, the anchor member having a rectangular cross-section, the rectangular cross-section having a larger dimension in a longitudinal direction of the elongate member to resist bending in the longitudinal direction; and

a sheath having a lumen and a closed perimeter, sidewall opening communicating with the lumen, the sheath receiving the elongate member, the anchor member springs transversely outwardly through the sidewall opening with respect to a longitudinal axis of the sheath to a deployed configuration,

wherein rotating the sheath selectively deploys or retracts the anchor member into the lumen of the sheath.

2. The system as recited in claim 1, wherein the anchor member is integrally formed with the elongate member.

3. The system as recited in claim 1, wherein the anchor member is fastened to the elongate member.

4. The system as recited in claim 1, wherein the sidewall opening has a larger dimension in a longitudinal dimension of the sheath.

5. The system as recited in claim 1, wherein the sidewall opening in the sheath has an angled portion extending from an inner surface to an outer surface of the sheath.

6. The system as recited in claim 1, wherein the sidewall opening has a proximal end proximal a distal end of the sheath.

7. The system as recited in claim 1, wherein the sidewall opening longitudinally extends towards a distal end of the sheath.

8. The system of claim 1, wherein the anchor member is positioned proximal a distal end of the elongate member.

9. A system for anchoring in tissue, comprising

a central element having a plurality of anchor members extending from the central element, the plurality of anchor members each having a rectangular cross-section, the rectangular cross-section having a dimension thicker in a direction along a length of the central element to resist bending in the longitudinal direction, and

a generally cylindrical sheath configured to receive the central element and the plurality of anchor members, the sheath having a plurality of closed perimeter, sidewall openings disposed equidistant around a circumference of the sheath, the sheath having a proximal end, a distal end and a longitudinal axis extending therebetween,

wherein, as the central element is rotated about the longitudinal axis of the sheath, at least one of the plurality of anchor members springs, transverse to the axis of the sheath, outwardly into the tissue through at least one of the sidewall openings to a deployed configuration.

10. The system as recited in claim 9, wherein each anchor member is integrally formed with or fastened to the central element.

11. The system as recited in claim 9, wherein each sidewall opening has a larger dimension in a longitudinal dimension of the sheath.

12. The system as recited in claim 9, wherein the sidewall opening longitudinally extends towards a distal end of the sheath.

13. The system as recited in claim 9, wherein each sidewall opening in the sheath has a pair of angled portions extending from an inner surface to an outer surface of the sheath, each anchor member moving along the pair of angled portions as the anchor member extends from the sheath.

14. The system of claim 9, wherein the anchor member is positioned proximal a distal end of the elongate member.

15. A system comprising:

an elongate member having an anchor member extending transversely from the elongate member, the anchor member having a rectangular cross-section, the rectangular cross-section having a dimension thicker in a direction along a length of the elongate member to resist bending in the longitudinal direction, a portion the anchor member curves at least partially around the elongate member within the sheath; and

a sheath having a lumen, the sheath receiving the elongate member and selectively constraining movement of the anchor member in a direction transverse to a longitudinal axis of the sheath, the anchor member is biased to extend transversely outwardly with respect to the longitudinal axis of the sheath and through a closed perimeter, sidewall opening to a deployed configuration.

16. The system as recited in claim 15, wherein the anchor member is integrally formed with or fastened to the elongate member.

17. The system as recited in claim 15, wherein the anchor member comprises a shape-memory material.

18. The system of claim 15, wherein the anchor member is positioned proximal a distal end of the elongate member.

19. A method comprising:

positioning a sheath within a body, the sheath having a closed perimeter, sidewall opening and a longitudinal axis; and

moving the sheath relative an elongate member disposed within the sheath, the elongated member including an anchor member extending radially from the elongate member, the anchor member having an upper surface disposed and movable within a plane transverse to the longitudinal axis, the anchor member having a rectangular cross-section, the rectangular cross-section having a dimension thicker in a direction along a length of the elongate member to resist bending in the longitudinal direction,

wherein moving the sheath relative the elongate member allows the anchor member to extend radially outwardly from the elongate member in a direction transverse to the longitudinal direction,

wherein moving the sheath comprises;

rotating the sheath and the elongate member in the same direction at different speeds,

rotating the sheath while maintaining the elongate member stationary, or

rotating the sheath and the elongate member in opposite directions.

20. The method as recited in claim 19, wherein moving the sheath comprises moving a distal end of the anchor member outwardly within the plane, through the sidewall opening, and into tissue.

21. The method as recited in claim 19, wherein the anchor member springs outwardly to a deployed configuration.