Fiber Embedded Hollow Needle For Percutaneous Delivery of Laser Energy

• US 20110196357A1
• Filed: 02/07/2011
• Published: 08/11/2011
• Est. Priority Date: 12/14/2008
• Status: Active Grant

• Current Assignee: Claser, Inc.
• Original Assignee: Claser, Inc.
• Inventors: Srinivasan, Pattanam
• Granted Patent: US 9,693,825 B2
• Time in Patent Office: Days
• US Class Current: 606/15
• 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 2018/00434 Neural system
• CPC Class Codes: A61B 2018/00577 Ablation
• CPC Class Codes: A61B 2018/2005 with beam delivery through an interstitially insertable device, e.g. needle
• 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

Abstract

An apparatus facilitating percutaneous delivery of laser energy includes: a hollow needle having a cutting edge at an insertion end thereof; and a laser fiber fixedly embedded within the hollow needle, the embedded laser fiber within the needle being permanently fixed within the hollow needle as one non detachable unit.

Claims

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

a hollow needle having a cutting edge at an insertion end thereof; and

a laser fiber fixedly embedded within the hollow needle,

the embedded laser fiber within the needle being permanently fixed within the hollow needle as one non detachable unit.

2. The apparatus according to claim 1, wherein the laser fiber is embedded such that the laser fiber does not protrude past a point at which the cutting edge begins.

3. The apparatus according to claim 2, wherein the cutting edge is a beveled edge.

4. The apparatus according to claim 1, wherein the embedded laser fiber is permanently fixed within the hollow needle with glue.

5. The apparatus according to claim 1, wherein the hollow needle has an outer diameter of 0.7 mm or less and is comparable to a spinal needle for maximal preservation and minimal disruption of the tissue integrity during insertion.

6. The apparatus according to claim 1, wherein the laser fiber is precisely affixed within the hollow needle cavity so as the laser fiber tip does not protrude beyond the pointed tip of the hollow needle, thus preventing splitting and damage to the laser fiber while precisely delivering the laser energy on contact with the area of treatment.

7. The apparatus according to claim 1, further comprising a laser generator that generates a laser of a wavelength in the 690 nm to 710 nm range.

8. The apparatus according to claim 1, wherein the laser fiber has a diameter less than 0.7 mm.

9. The apparatus according to claim 1, wherein the laser fiber has a diameter less than 0.5 mm.

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

11. The apparatus according to claim 4, wherein the glue is a bioadhesive.