Endovascular device with a tissue piercing distal probe and associated methods

Patent metadata

Field	Value
Publication number	US-11540857-B2
Application number	US-202016749489-A
Country	US
Kind code	B2
Filing date	Jan 22, 2020
Priority date	Feb 5, 2008
Publication date	Jan 3, 2023
Grant date	Jan 3, 2023

Abstract

Devices, systems and methods for treating diseases and disorders effecting the cardiovascular system of the human body are disclosed. An exemplary device in accordance with this disclosure comprises a shaft, tip member fixed to the shaft, and a probe extending beyond a distal surface of the tip member. In some useful embodiments, the tip member is relatively atraumatic and the probe is shaped so as to be more likely to produce trauma than the tip member.

First claim

What is claimed:

1. An elongate medical device for penetrating tissue, comprising:
an elongate shaft having a proximal portion having a first diameter and a distal portion having a second diameter less than the first diameter;
a coil positioned around the distal portion; and
a tip member fixedly attached to the distal portion;
wherein the tip member comprises a distal surface and a probe extending distally beyond the distal surface.

2. The elongate medical device of claim 1 , wherein the distal surface has a generally hemispherical shape.

3. The elongate medical device of claim 1 , wherein the probe has a generally cylindrical shape.

4. The elongate medical device of claim 1 , wherein a distal surface of the probe is substantially perpendicular to a longitudinal axis of the probe.

5. The elongate medical device of claim 1 , wherein the probe is monolithically formed with the tip member.

6. The elongate medical device of claim 1 , wherein the tip member is disposed distal of the coil.

7. The elongate medical device of claim 1 , wherein the tip member fixedly secures a distal end of the coil to the distal portion.

8. The elongate medical device of claim 1 , wherein the probe is adapted and configured to pierce tissue.

9. The elongate medical device of claim 1 , wherein the probe has an outer diameter less than an outer diameter of the tip member.

10. An elongate medical device for penetrating tissue, comprising:
a monolithic elongate shaft comprising a proximal segment, a distal segment having an outer diameter less than an outer diameter of the proximal segment, and a tapered segment disposed between the proximal segment and the distal segment;
a helical coil disposed around the distal segment;
a proximal joint fixing the helical coil to the tapered segment; and
a tip member fixing the helical coil to the distal segment;
wherein the tip member includes a probe extending distally from a distal end of the tip member.

11. The elongate medical device of claim 10 , wherein the probe is monolithically formed with the tip member.

12. The elongate medical device of claim 10 , wherein the distal segment extends distally of the helical coil.

13. The elongate medical device of claim 10 , wherein the distal segment extends into the tip member.

14. The elongate medical device of claim 10 , wherein the probe includes a substantially flat distal face configured and adapted to pierce an intimal layer of a blood vessel wall.

15. The elongate medical device of claim 14 , wherein the distal face is substantially perpendicular to a longitudinal axis of the probe.

16. An elongate medical device for penetrating tissue, comprising:
an elongate shaft having a proximal portion having a first diameter and a distal portion having a second diameter less than the first diameter;
a coil positioned around and spaced apart from the distal portion; and
a tip member fixedly attaching the coil to the distal portion;
wherein the tip member comprises a convex distal surface and a cylindrical probe extending distally beyond the distal surface to a distal face;
wherein the probe is monolithically formed with the tip member.

17. The elongate medical device of claim 16 , wherein the distal face is substantially perpendicular to a longitudinal axis of the probe.

18. The elongate medical device of claim 16 , wherein the tip member is disposed distal of the coil.

19. The elongate medical device of claim 16 , wherein a proximal end of the coil is fixedly attached to the elongate shaft proximal of the distal portion.

20. The elongate medical device of claim 16 , wherein the distal portion extends distal of a distal end of the coil.

Assignees

• Boston Scient Scimed Inc

Inventors

• Olson Matthew J
• Kugler Chad J
• Olson Ross A
• Robinson David B
• Jacobs Peter A

Classifications

• A61B17/11

  for performing anastomosis; Buttons for anastomosis · CPC title

• A61B2017/22095

  accessing a blood vessel true lumen from the sub-intimal space · CPC title

• A61B2017/22094

  for crossing total occlusions, i.e. piercing · CPC title

• A61M25/1002

  characterised by balloon shape (A61M25/1006, A61M25/1009 take precedence) · CPC title

• A61B17/3478

  Endoscopic needles, e.g. for infusion (biopsy needles A61B10/0233; catheters with injection needles A61M25/0067) · CPC title