Elongate medical device

Patent metadata

Field	Value
Publication number	US-9763814-B2
Application number	US-201514881836-A
Country	US
Kind code	B2
Filing date	Oct 13, 2015
Priority date	Oct 24, 2014
Publication date	Sep 19, 2017
Grant date	Sep 19, 2017

Abstract

An elongate medical device is provided. The device includes an elongate member defining a lumen through proximal, central, and distal portions. The central portion of the elongate member is defined from a plurality of closely aligned coils that establish the lumen within the central portion. The central portion further comprises a jacket disposed around a majority of an outer circumference of the plurality of coils, the jacket defining opposing first and second longitudinal edges that extend along the length of the central portion, and an elongate gap between opposing first and second longitudinal edges exposing portions of each of the plurality of coils aligned therewith, wherein the elongate gap allows for fluid communication from within or into the lumen through spaces between neighboring coils and through the elongate gap.

First claim

The invention claimed is:

1. An stent, comprising:
an elongate member extending between a distal end portion and a proximal end portion with a central portion disposed therebetween, the elongate member defining a lumen defined therethrough, the central portion of the elongate member is defined from a wire that is coiled to define a plurality of neighboring and longitudinally aligned coils, the plurality of coils collectively defining the lumen therethrough, the plurality of coils are configured such that neighboring coils are closely aligned;
the central portion further comprises a jacket disposed around a majority of an outer circumference of the plurality of coils, the jacket defining opposing first and second longitudinal edges that extend along the length of the central portion, and an elongate gap between opposing first and second longitudinal edges exposing portions of each of the plurality of coils aligned therewith, wherein the elongate gap allows for fluid communication from within or into the lumen through spaces between neighboring coils and through the elongate gap;
wherein each of the distal end portion and the proximal end portion of the member include respective apertures at a tip thereof, each of the respective apertures allow communication into and through the lumen.

2. The stent of claim 1 , wherein at least one of the distal end portion and the proximal end portion is biased to a first arcuate configuration and is sufficiently flexible to be aligned in a second elongate configuration wherein the respective end portion extends substantially along a longitudinal axis that extends through the central portion.

3. The stent of claim 1 , wherein the distal end portion and the proximal end portion of the elongate member are each biased to a first arcuate configuration and are each sufficiently flexible to be aligned in a second elongate configuration, wherein the distal end portion and the proximal end portion are defined by the jacket disposed along the central portion, wherein portions of the jacket that define the proximal and distal end portions extend around an entire circumference of the respective distal and proximal end portions.

4. The stent of claim 1 , wherein the elongate gap extends along the central portion and does not extend along at least one of the distal end portion and the proximal end portion.

5. The stent of claim 1 , wherein the elongate gap is helical along its length.

6. The stent of claim 5 , wherein the elongate gap rotates about 180 degrees along the length of the central portion.

7. The stent of claim 6 , wherein the central portion is biased into an orientation such that the gap rotates about 180 degrees along the length of the central portion, and wherein the central portion may be twisted into an orientation wherein the elongate gap is substantially straight along the length of the central portion.

8. The stent of claim 5 , wherein the elongate gap rotates about 360 degrees along the length of the central portion.

9. The stent of claim 8 , wherein the central portion is biased into an orientation such that the gap rotates about 360 degrees along the length of the central portion, and wherein the central portion may be twisted into an orientation where the elongate gap rotates about 180 degrees along the length of the central portion.

10. The stent of claim 9 , wherein the central portion may be twisted to an orientation where the elongate gap is substantially straight along the length of the central portion.

11. The stent of claim 1 , wherein the elongate gap has a constant arc length along its length.

12. The stent of claim 1 , wherein the elongate gap has an increasing arc length from a distal end portion of the central portion to a proximal end portion of the central portion.

13. The stent of claim 1 , wherein at least a portion of the elongate gap has an arc length of about 30 degrees.

14. The stent of claim 1 , wherein at least a portion of the elongate gap has an arc length of about 45 degrees.

15. The stent of claim 1 , wherein the jacket extends around an entire circumference of the distal end portion and the proximal end portion.

16. The stent of claim 1 , further comprising a second wire disposed along the central portion, wherein a first end of the second wire is fixed to one or more of the plurality of coils at a distal end portion of the central portion, and a second end of the second wire is fixed to one or more of the plurality of coils at a proximal end portion of the central portion.

17. The stent of claim 16 , wherein the second wire is straight, and the connection of the second wire to the one or more coils at each of the proximal and distal end portions establishes a biasing force to return the central portion to an orientation where the second wire is straight when a force that deflected the central portion to an orientation where the second wire was not straight is released.

18. The stent of claim 16 , wherein the second wire is disposed within the lumen.

19. A stent, comprising:
an elongate member extending between a distal end portion and a proximal end portion with a central portion disposed therebetween, the elongate member defining a lumen defined therethrough, the central portion of the elongate member is defined from a wire that is coiled to define a plurality of neighboring and longitudinally aligned coils, the plurality of coils collectively defining the lumen therethrough, the plurality of coils are configured such that neighboring coils are closely aligned;
the central portion further comprises a jacket disposed around a majority of an outer circumference of the plurality of coils, the jacket defining opposing first and second longitudinal edges that extend along the length of the central portion, and an elongate gap between opposing first and second longitudinal edges exposing portions of each of the plurality of coils aligned therewith, wherein the elongate gap allows for fluid communication from within or into the lumen through spaces between neighboring coils and through the elongate gap;
wherein each of the distal end portion and the proximal end portion of the member include respective apertures at a tip thereof, each of the respective apertures allow communication into and through the lumen;
wherein the elongate gap extends along the central portion and does not extend along at least one of the distal end portion and the proximal end portion, and wherein the elongate gap is helical along its length.

20. A stent, comprising:
an elongate member extending between a distal end portion and a proximal end portion with a central portion disposed therebetween, the elongate member defining a lumen defined therethrough, the central portion of the elongate member is defined from a wire that is coiled to define a plurality of neighboring and longitudinally aligned coils, the plurality of coils collectively defining the lumen therethrough, the plurality of coils are configured such that neighboring coils are closely aligned;
the central portion further comprises a jacket disposed around a majority of an outer circumference of the plurality of coils, the jacket defining opposing first and second longitudinal edges that extend along the length of the central portion, and an elongate gap between opposing first and second longitudinal edges exposing portions of each of the plurality of coils aligned therewith, wherein the elongate gap allows for fluid communication from within or into the lumen through spaces between neighboring coils and through the elongate g

Assignees

• Cook Medical Technologies Llc

Inventors

• Biltz Benjamin T
• Baumann Bryan

Classifications

• A61F2210/0014

  using shape memory or superelastic materials, e.g. nitinol · CPC title

• A61F2210/0076

  multilayered, e.g. laminated structures · CPC title

• A61M27/008

  pre-shaped, for use in the urethral or ureteral tract · CPC title

• A61F2/88 Primary

  the wire-like elements formed as helical or spiral coils · CPC title

• A61F2/07

  Stent-grafts · CPC title