Fiber embedded hollow spikes for percutaneous delivery of laser energy

• US 10,206,742 B2
• Filed: 04/16/2014
• Issued: 02/19/2019
• Est. Priority Date: 02/21/2010
• Status: Active Grant

• Current Assignee: Claser, Inc.
• Original Assignee: Claser, Inc.
• Inventors: Srinivasan, Pattanam
• Primary Examiner(s): Downey, John R
• Application Number:
  US14/254,129
• Publication Number:
  US 20140243806A1
• Time in Patent Office: 1,770 Days
• CPC Class Codes: A61B 18/201 with beam delivery through a hollow tube, e.g. forming an articulated arm through a flexible conduit A61B18/22; Hand-pieces therefor
• CPC Class Codes: A61B 18/22 the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
• CPC Class Codes: A61B 2018/00434 Neural system
• CPC Class Codes: A61B 2018/00577 Ablation
• CPC Class Codes: A61B 2018/00982 combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes
• CPC Class Codes: A61B 2018/2005 with beam delivery through an interstitially insertable device, e.g. needle
• CPC Class Codes: A61B 2018/2065 Multiwave; Wavelength mixing, e.g. using four or more wavelengths pilot laser A61B2018/2025
• CPC Class Codes: A61B 2018/2227 Hollow fibres
• CPC Class Codes: A61N 2005/0612 using probes penetrating tissue; interstitial probes
• CPC Class Codes: A61N 2005/063 comprising light transmitting means, e.g. optical fibres
• CPC Class Codes: A61N 2005/0662 Visible light
• CPC Class Codes: A61N 5/0601 Apparatus for use inside the body
• CPC Class Codes: A61N 5/067 using laser light

Abstract

Some implementations provide an apparatus for percutaneous delivery of laser energy, the apparatus including two or more hollow spikes, each having an insertion end and a coupling end, each including an optical fiber embedded as a permanent fixture therein, each optical fiber capable of emitting laser from the insertion end of the corresponding hollow spike; and\a hub coupled to the two or more hollow spikes at the respective coupling ends of each hollow spike, the hub including a connector for coupling the apparatus to a laser generator.

Claims

1. An apparatus for percutaneous delivery of laser energy, the apparatus comprising:

two or more hollow spikes, each having a central cavity, an insertion end, and a coupling end, each including an optical fiber embedded as a permanent fixture in a respective central cavity, each optical fiber capable of emitting laser from the insertion end of the corresponding hollow spike; and

a hub coupled to the two or more hollow spikes at the respective coupling ends of each hollow spike, the hub including a connector for coupling the apparatus to a laser generator,

wherein the insertion end of each hollow spike comprises a cutting edge of a Quincke type spinal needle tip, the cutting edge including a beveled edge, and

wherein each optical fiber is coaxial with an axis of the respective central cavity, and is positioned such that a distal end of the optical fiber is retracted within the respective central cavity corresponding to a plane that is inclined with respect to the axis of the respective central cavity, the plane defining a beginning end of the beveled edge and a distal end of the beveled edge.

2. The apparatus according to claim 1, wherein the embedded optical fiber is permanently fixed within the respective spike with glue.

3. The apparatus according to claim 2, wherein the glue includes a bioadhesive.

4. The apparatus according to claim 1, wherein the respective spike has an outer diameter of 0.7 mm or less.

5. The apparatus according to claim 1, wherein the embedded optical fiber is affixed within the insertion end of the respective spike to deliver the laser energy to an area of treatment on contact with the cutting edge, and wherein the embedded optical fiber is affixed within the insertion end to prevent splitting and damage to the optical fiber.

6. The apparatus according to claim 1, wherein the laser generator is configured to generate a laser of a wavelength in the 690 nm to 710 nm range.

7. The apparatus according to claim 1, wherein the respective optical fiber has a diameter that is less than one of 0.7 mm or 0.5 mm.

8. The apparatus according to claim 1, wherein each hollow spike is spaced no more than 1 cm away from at least one neighboring spike.

9. The apparatus according to claim 1, wherein the respective optical fiber includes a multi-mode fiber.

10. The apparatus according to claim 1, wherein each hollow spike is a Quincke type spinal needle.

11. The apparatus according to claim 1, further comprising:

an imaging device to track the insertion ends of the two or more hollow spikes.

12. The apparatus according to claim 11, wherein the imaging device comprises an X-Ray fluoroscopy device.

13. The apparatus according to claim 11, wherein the imaging device comprises:

an ultrasound device.

14. The apparatus according to claim 1, further comprising:

a motor connected to the hub, the motor configured to cause the percutaneous delivery of laser energy to change position inside a treatment area.

15. A method of percutaneous application of laser energy for medical treatment, the method comprising:

coupling a laser generator to a hub that is connected to two or more hollow spikes, wherein a connector included in the hub is configured to couple the laser generator to the hub, and wherein each hollow spike includes a central cavity, an insertion end, a coupling end that is connected to the hub, and an optical fiber that is embedded in a respective central cavity as a permanent fixture;

percutaneously inserting the insertion ends of the two or more hollow spikes into a treatment area through a subject'"'"'s skin, wherein the two or more hollow spikes are inserted at a same time; and

delivering laser energy to the treatment area through the optical fibers housed within the two or more spikes,

wherein the insertion end of each hollow spike comprises a cutting edge of a Quincke type spinal needle tip, the cutting edge including a beveled edge, and

wherein each optical fiber is coaxial with an axis of the respective central cavity, and is positioned such that a distal end of the optical fiber is retracted within the respective central cavity corresponding to a plane that is inclined with respect to the axis of the respective central cavity, the plane defining a beginning end of the beveled edge and a distal end of the beveled edge.

16. The method of claim 15, wherein percutaneously inserting the beveled edges further comprises:

percutaneously inserting the beveled edges under imaging guidance.

17. The method of claim 15, wherein delivering the laser energy further comprises:

targeting laser energy within the treatment area under imaging guidance.