Deployment device for placement of multiple intraluminal surgical staples

Patent metadata

Field	Value
Publication number	US-10022250-B2
Application number	US-201113179458-A
Country	US
Kind code	B2
Filing date	Jul 8, 2011
Priority date	Dec 12, 2007
Publication date	Jul 17, 2018
Grant date	Jul 17, 2018

Abstract

A system for delivering a surgical staple can include various components. The system may include an elongate body with a proximal end, a distal end, and a plurality of delivery platforms disposed adjacent the distal end. A sheath can move relative to the elongate body from a first position in which the distal end of the sheath is disposed distally of a distal-most distal delivery platform to a second position in which the distal end of the sheath is disposed proximally of at least one delivery platform. A plurality of intravascular tacks can be within the system with each disposed about a corresponding delivery platform.

First claim

What is claimed is:

1. A system for delivering a vascular prosthesis, comprising:
an elongate body comprising a proximal end, a distal end, and a plurality of delivery platforms disposed adjacent the distal end, each of the delivery platforms comprising a recess having a fixed axial length and defined between an axially fixed cylindrical protrusion having a proximal annular shoulder and an axially fixed cylindrical protrusion having a distal annular shoulder, the proximal and distal shoulders having corresponding radially extending faces perpendicular to a longitudinal axis of the elongate body to prevent proximal and distal slippage of an intravascular tack along the elongate body, wherein the axially fixed cylindrical protrusion having a proximal annular shoulder and the axially fixed cylindrical protrusion having a distal annular shoulder comprise a constant axial diameter;
a sheath having a proximal end and a distal end, the sheath being moveable relative to the elongate body from a first position in which the distal end of the sheath is disposed distally of a distal-most delivery platform to a second position in which the distal end of the sheath is disposed proximally of at least the distal-most delivery platform; and
a plurality of self-expanding intravascular tacks, each intravascular tack of the plurality of intravascular tacks having a single column of cells with a series of radiopaque markers, wherein each cell is defined by both a proximal-most ring and a distal-most ring of the tack, and being disposed about a corresponding delivery platform and a distal end of a proximal intravascular tack of the plurality of intravascular tacks being spaced away a distance from a proximal end of an adjacent-most distal intravascular tack of the plurality of intravascular tacks, the distance being greater than half of a length of each of the intravascular tacks of the plurality of intravascular tacks;
wherein the system is configured to separately place at least the proximal tack and the distal tack at a treatment zone one at a time at spaced apart locations such that a gap is provided in the treatment zone between the distal end of the proximal tack and the proximal end of the distal tack;
and wherein radial expansion force drops from no more than about 2 Newtons at 3 mm diameter to no more than about 1 Newton at 6 mm diameter.

2. The system of claim 1 , further comprising a stabilization device disposed on an outer surface of the system configured to minimize at least one of axial or radial shifting of at least one of the delivery platforms along or away from a longitudinal axis of a blood vessel in which the tacks are to be deployed.

3. The system of claim 2 , wherein the stabilization device is disposed between the distal end of the elongate body and at least one of the delivery platforms, the stabilization device adapted to directly engage a plurality of locations disposed about a body lumen to minimize movement of the elongate body relative to the body lumen when relative movement is provided between the sheath and the elongate body.

4. The system of claim 2 , wherein the stabilization device comprises an expandable balloon having a cylindrical configuration.

5. The system of claim 2 , wherein the stabilization device comprises a self-expanding member.

6. The system of claim 5 , wherein the self-expanding member comprises a plurality of axially extending arms, each arm having a proximal end coupled with the elongate body and a distal end, each of the arms configured to be held by the sheath in a low profile configuration in which the distal end of the arms are adjacent to the elongate body and to extend radially away from the elongate body when the sheath is disposed proximally of the arms such that the distal ends of the arms are positioned to appose a body lumen.

7. The system of claim 1 , wherein the system includes between 3 and 20 tacks disposed on corresponding delivery platforms.

8. The system of claim 1 , wherein the sheath is a first sheath and further comprising:
a second sheath disposed about the first sheath, the second sheath being configured to prevent friction forces along the outer surface of the first sheath from causing unwanted movement of the elongate body during placement of the tacks.

9. The system of claim 8 , wherein the system has a pre-deployment configuration in which the first sheath is fully inserted into the second sheath, and wherein, in the pre-deployment configuration, at least one intravascular tack is disposed distal of the distal end of the second sheath.

10. The system of claim 1 , further comprising a hand-held trigger device connected to the proximal end of at least one of the elongate body and the sheath to cause retraction of the distal end of the sheath relative to the elongate body to expose the delivery platforms to permit the tacks to be deployed.

11. The system of claim 10 , wherein the hand-held trigger comprises a selector to set an increment of movement of the sheath corresponding to a number of tacks to be deployed.

12. The system of claim 1 , wherein the distance the distal end of the proximal tack is spaced away from the proximal end of the adjacent-most distal tack is greater than the length of each of the intravascular tacks.

13. The system of claim 1 , wherein the length of each of the intravascular tacks is 15 mm or less.

14. The system of claim 13 , wherein the length of each of the intravascular tacks is 8 mm or less.

15. The system of claim 14 , wherein the distance the distal end of the proximal tack is spaced away from the proximal end of the adjacent-most distal tack is at least 5 mm.

16. The system of claim 14 , wherein the distance the distal end of the proximal tack is spaced away from the proximal end of the adjacent-most distal tack is between 6 and 10 mm.

17. The system of claim 13 , wherein the length of each of the intravascular tacks is 6 mm or less.

18. The system of claim 1 , wherein the series of radiopaque markers are positioned along a midline of the tack.

19. The system of claim 1 wherein the axially fixed cylindrical protrusion having a proximal annular shoulder comprises an annular marker band.

20. The system of claim 1 wherein the axially fixed cylindrical protrusion having a distal annular shoulder comprises an annular marker band.

21. A system for delivering a vascular prosthesis, comprising:
an elongate body extending along a longitudinal axis between a proximal end and a distal end, the elongate body comprising:
a plurality of annular recesses disposed adjacent the distal end;
a plurality of proximal shoulders;
a plurality of distal shoulders, each of the annular recess situated between one of the plurality of proximal shoulders and one of the plurality of distal shoulders, each shoulder of the pluralities of proximal and distal shoulders having a radially extending face perpendicular to the longitudinal axis; and
a plurality of axially fixed cylindrical regions, each axially fixed cylindrical region formed by a proximal shoulder at an adjacent first annular recess of the plurality of annular recesses and a distal shoulder at an adjacent second annular recess of the plurality of annular recesses, each axially fixed cylindrical region having an outer diameter greater than an outer diameter of the adjacent first and second annular recesses, being non-expandable, and comprising an annular radiopaque marker band;

a sheath having a proximal end, a distal end, the sheath being moveable relative to the elongate body f

Assignees

• Giasolli Robert
• Schneider Peter
• Intact Vascular Inc

Inventors

• Giasolli Robert
• Schneider Peter

Classifications

• A61F2/9517

  handle assemblies therefor · CPC title

• A61F2/844

  folded prior to deployment · CPC title

• A61F2250/0062

  Kits of prosthetic parts to be assembled in various combinations for forming different prostheses · CPC title

• A61F2/86 Primary

  Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure · CPC title

• A61F2002/826

  more than one stent being applied sequentially · CPC title