Endovascular device with a tissue piercing distal probe and associated methods

• US 20100069945A1
• Filed: 08/05/2009
• Published: 03/18/2010
• Est. Priority Date: 02/05/2008
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: BridgePoint Medical, Inc. (Boston Scientific Corporation)
• Inventors: Olson, Ross Arten, Robinson, David Bryan, Jacobs, Peter Alan, Kugler, Chad John, Olson, Matthew Jonathan
• Granted Patent: US 8,337,425 B2
• Time in Patent Office: Days
• US Class Current: 606/185
• CPC Class Codes: A61B 17/11 for performing anastomosis; Buttons for anastomosis
• CPC Class Codes: A61B 17/3207 Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions A61B17/32037 takes precedence; endoscopic cutting instruments A61B17/320016
• CPC Class Codes: A61B 17/320758 with a rotating cutting instrument, e.g. motor driven A61B17/320725, A61B17/32075 and A61B17/320783 take precedence; for removing intra-ocular material A61F9/00763; endoscopic rotatable cutting instruments A61B17/32002
• CPC Class Codes: A61B 17/3478 Endoscopic needles, e.g. for infusion biopsy needles A61B10/0233; catheters with injection needles A61M25/0067
• CPC Class Codes: A61B 2017/00252 for by-pass connections, i.e. connections from heart chamber to blood vessel or from blood vessel to blood vessel
• CPC Class Codes: A61B 2017/00336 with a protective sleeve, e.g. retractable or slidable
• CPC Class Codes: A61B 2017/00438 connectable to a finger
• CPC Class Codes: A61B 2017/00778 Operations on blood vessels A61B2017/22097, A61B2017/320741 take precedence
• CPC Class Codes: A61B 2017/1107 for blood vessels
• CPC Class Codes: A61B 2017/22044 with a pointed tip
• CPC Class Codes: A61B 2017/22048 Balloons
• CPC Class Codes: A61B 2017/22054 with two balloons
• CPC Class Codes: A61B 2017/22094 for crossing total occlusions, i.e. piercing
• CPC Class Codes: A61B 2017/22095 accessing a blood vessel true lumen from the sub-intimal space
• CPC Class Codes: A61B 2017/320044 Blunt dissectors blunt suture needles A61B2017/06085
• CPC Class Codes: A61B 2017/3488 Fixation to inner organ or inner body tissue
• CPC Class Codes: A61B 2090/036 abutting on tissue or skin
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers
• CPC Class Codes: A61M 2025/0096 being laterally outward extensions or tools, e.g. hooks or fibres
• CPC Class Codes: A61M 2025/09083 having a coil around a core
• CPC Class Codes: A61M 2025/09183 : having tools at the distal tip
• CPC Class Codes: A61M 25/007 : Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
• CPC Class Codes: A61M 25/09 : Guide wires
• CPC Class Codes: A61M 25/1002 : characterised by balloon shape A61M25/1006, A61M25/1009 take precedence
• CPC Class Codes: A61M 25/1011 : Multiple balloon catheters

Abstract

Devices, systems and methods for treating diseases and disorders effecting the cardiovascular system of the human body are disclosed. An exemplary blood vessel 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.

Claims

1. A device, comprising:

a shaft;

a tip member fixed to the shaft; and

the tip member including a probe extending beyond a distal surface of the tip member.

2. A device, comprising:

a shaft;

a tip member fixed to the shaft; and

wherein a distal portion of the shaft extends beyond a distal surface of the tip member.

3. The device of claim 2, wherein the distal portion of the shaft extends beyond the tip member by a distance that is greater than about 0.003 inches and less than about 0.012 inches.

4. The device of claim 3, wherein the distal portion of the shaft extends beyond the tip member by a distance that is greater than about 0.004 inches and less than about 0.008 inches.

5. The device of claim 2, wherein the distal portion of the shaft has a diameter that is greater than about 0.002 inches and less than about 0.006 inches.

6. The device of claim 2, wherein the distal portion of the shaft has an aspect ratio of length to diameter that is greater than about 1.

7. The device of claim 6, wherein the distal portion of the shaft has an aspect ratio of length to diameter that is greater than about 2.

8. The device of claim 2, wherein:

the distal portion of the shaft has a maximum diameter DW;

the tip member has a maximum diameter DT; and

the maximum diameter DT is greater than the maximum diameter DW of the distal portion of the shaft.

9. The device of claim 8, wherein a ratio of the maximum diameter DT of the tip member to the maximum diameter DW of the distal portion of the shaft is greater than about 3.

10. The device of claim 2, wherein the shaft comprises a proximal leg, a distal leg, and a bend disposed between the proximal leg and a distal leg.

11. The device of claim 10, wherein the bend extends through an angular range that is greater than about 90 degrees and less than about 180 degrees.

12. The device of claim 11, wherein the bend extends through an angular range that is greater than about 120 degrees and less than about 150 degrees.

13. The device of claim 10, wherein the distal leg has a length that is greater than about 0.040 inch and less than about 0.300 inch.

14. The device of claim 2, further comprising a coil having a proximal end fixed to the shaft and a distal end fixed to the tip member.

15. The device of claim 2, wherein the tip member comprises a metal.

16. The device of claim 15, wherein the metal comprises silver.

17. A device, comprising:

a shaft;

a tip member fixed to the shaft; and

a probe extending beyond a distal surface of the tip member.

18. The device of claim 17, wherein the distal probe and the tip member are monolithic.

19. The device of claim 17, wherein the distal probe and the tip member are both formed from a single piece of material.

20. The device of claim 17, wherein the distal probe and the tip member are both formed by removing material from a single piece of material.

21. The device of claim 17, wherein the distal probe is formed by removing material from a single piece of material.

22. The device of claim 17, wherein the distal probe and the tip member are integrally formed from a single material.

23. A medical device, comprising:

a shaft;

a tip connected to a distal end of the shaft, the tip having a generally convex distal surface with a maximum tip diameter; and

a probe extending from the distal surface of the tip, the probe having a maximum probe diameter less than a length of the probe and less than the maximum tip diameter.

24. The medical device of claim 23, wherein the probe has a generally cylindrical shape.

25. The medical device of claim 23, wherein the probe has a substantially flat distal face.

26. The medical device of claim 25, wherein the substantially flat distal face is substantially perpendicular to a longitudinal axis of the shaft.

27. The medical device of claim 23, wherein the maximum tip diameter is between about 0.008 inches and about 0.035 inches, and the maximum probe diameter is between about 0.0020 inches and about 0.0055 inches.

28. The medical device of claim 23, wherein the probe extends distally from the generally convex distal surface between about 0.003 inches and about 0.032 inches.

29. The medical device of claim 23, wherein the probe is configured to pierce tissue.

30. The medical device of claim 23, wherein the tip and the probe are integrally formed from a single piece of material.

31. The medical device of claim 23, wherein the shaft extends through the tip, and the probe is a distal most portion of the shaft.

32. The medical device of claim 23, wherein the shaft terminates within the tip.

33. The medical device of claim 23, further comprising a coil having a proximal end attached to the shaft and a distal end attached to the tip.

34. The medical device of claim 23, wherein the shaft includes a plurality of tapered segments.

35. The medical device of claim 23, wherein the tip has a generally hemispherical shape.

36. The medical device of claim 23, wherein the shaft includes a bend proximate the distal end of the shaft.

37. A medical device, comprising:

a core wire;

a jacket surrounding at least a portion of the core wire, the jacket having a generally convex distal surface with a maximum tip diameter; and

a probe extending from the distal surface of the jacket, the probe having a maximum probe diameter less than a length of the probe and less than the maximum tip diameter.

38. The medical device of claim 37, wherein the probe has a generally cylindrical shape.

39. The medical device of claim 37, wherein the probe has a substantially flat distal face.

40. The medical device of claim 39, wherein the substantially flat distal face is substantially perpendicular to a longitudinal axis of the core wire.

41. The medical device of claim 37, wherein the probe is configured to pierce tissue.

42. The medical device of claim 37, wherein the probe and the core wire are integrally formed from a single piece of material.

43. The medical device of claim 37, wherein the core wire includes a bend proximate a distal end of the core wire.

44. The medical device of claim 37, wherein the jacket surrounds the entire core wire.