MEDICAL DEVICE HAVING AN ELECTRO-MAGNETIC DEVICE TIP AND RELATED METHOD OF USE

• US 20140100585A1
• Filed: 10/08/2013
• Published: 04/10/2014
• Est. Priority Date: 10/09/2012
• Status: Abandoned Application

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Anderson, James M., Weber, Jan, Chang, Robert T.
• Application Number:
  US14/048,309
• Publication Number:
  US 20140100585A1
• Time in Patent Office: Days
• US Class Current: 606/128
• CPC Class Codes: A61B 17/22004 using mechanical vibrations, e.g. ultrasonic shock waves A61B17/225 takes precedence
• CPC Class Codes: A61B 17/22012 in direct contact with, or very close to, the obstruction or concrement for removing obstructions in blood vessels by laser A61B18/245
• CPC Class Codes: A61B 17/32 Surgical cutting instruments A61B18/042 takes precedence; suture cutters A61B17/0467; instruments for ligaturing or cutting A61B17/128; instruments for rupturing the amniotic membrane A61B17/4208; specially adapted knives for eye surgery A61F9/0133
• CPC Class Codes: A61B 17/32002 with continuously rotating, oscillating or reciprocating cutting instruments
• 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 2017/320004 abrasive
• CPC Class Codes: A61M 2025/0161 wherein the distal tips have two or more deflection regions
• CPC Class Codes: A61M 25/0105 Steering means as part of the catheter or advancing means; Markers for positioning systems for detection of markers A61B
• CPC Class Codes: A61M 25/0133 Tip steering devices
• CPC Class Codes: A61M 25/0158 with magnetic or electrical means, e.g. by using piezo materials, electroactive polymers, magnetic materials or by heating of shape memory materials

Abstract

A medical device may include an elongate shaft having a longitudinal axis and a distal end. The medical device may include a distal tip having at least one electromagnetic coil disposed adjacent the distal end and a plurality of bulbous elements disposed about the longitudinal axis. The plurality of bulbous elements may be operatively associated with the at least one electromagnetic coil such that the plurality of bulbous elements may translate relative to the longitudinal axis in response to activation of the at least one electromagnetic coil. A method of crossing an obstruction may include approaching the obstruction with a medical device, supplying alternating current to at least one electromagnetic coil, and advancing the medical device into engagement with the obstruction.

Claims

1. A medical device, comprising:

an elongate shaft having a longitudinal axis and a distal end;

at least one electromagnetic coil disposed adjacent the distal end; and

a distal tip including a plurality of magnetized bulbous elements disposed about the longitudinal axis;

wherein the plurality of magnetized bulbous elements is operatively associated with the at least one electromagnetic coil.

2. The medical device of claim 1, wherein the plurality of magnetized bulbous elements is configured to translate relative to the longitudinal axis in response to activation of the at least one electromagnetic coil.

3. The medical device of claim 2, wherein the plurality of magnetized bulbous elements is configured to translate axially relative to the longitudinal axis in response to activation of the at least one electromagnetic coil.

4. The medical device of claim 2, wherein the plurality of magnetized bulbous elements is configured to translate laterally relative to the longitudinal axis in response to activation of the at least one electromagnetic coil.

5. The medical device of claim 2, wherein the plurality of magnetized bulbous elements is configured to translate rotationally relative to the longitudinal axis in response to activation of the at least one electromagnetic coil.

6. The medical device of claim 1, wherein the plurality of magnetized bulbous elements is slidingly disposed about the elongate shaft.

7. The medical device of claim 6, wherein the plurality of magnetized bulbous elements includes at least one mechanical stop associated with each magnetized bulbous element.

8. The medical device of claim 1, wherein the plurality of magnetized bulbous elements is integrally formed with the distal tip and the elongate shaft.

9. The medical device of claim 1, wherein the at least one electromagnetic coil is embedded within a wall of the elongate shaft.

10. The medical device of claim 1, wherein the at least one electromagnetic coil is disposed on an exterior surface of the elongate shaft.

11. The medical device of claim 1, wherein the at least one electromagnetic coil surrounds the elongate shaft.

12. The medical device of claim 1, wherein the at least one electromagnetic coil is disposed within a lumen of the elongate shaft.

13. The medical device of claim 1, wherein the at least one electromagnetic coil includes at least one magnet disposed within the at least one electromagnetic coil.

14. The medical device of claim 1, wherein the at least one electromagnetic coil includes a first electromagnetic coil, a second electromagnetic coil, and a third electromagnetic coil.

15. The medical device of claim 14, wherein the plurality of magnetized bulbous elements includes a first magnetized bulbous element operatively associated with the first electromagnetic coil, a second magnetized bulbous element operatively associated with the second electromagnetic coil, and a third magnetized bulbous element operatively associated with the third electromagnetic coil.

16. The medical device of claim 2, wherein the distal tip is directionally steerable using selective activation of the at least one electromagnetic coil.

17. The medical device of claim 6, wherein the plurality of magnetized bulbous elements each include a lumen extending therethrough, wherein the lumen includes a lubricious coating.

18. The medical device of claim 17, wherein at least one lumen is disposed concentric to a central axis of its respective magnetized bulbous element.

19. The medical device of claim 17, wherein at least one lumen is offset from a central axis of its respective magnetized bulbous element.

20. The medical device of claim 1, wherein the plurality of magnetized bulbous elements each include an abrasive coating disposed on an exterior surface thereof.