Laser Scalpel

• US 20100286672A1
• Filed: 03/05/2010
• Published: 11/11/2010
• Est. Priority Date: 03/06/2009
• Status: Abandoned Application

• Current Assignee: A.R.C. laser GmbH
• Original Assignee: A.R.C. laser GmbH
• Inventors: Volland, Gerd, Walker, Rudolf, Thyzel, Reinhardt
• Application Number:
  US12/718,689
• Publication Number:
  US 20100286672A1
• Time in Patent Office: Days
• US Class Current: 606/3
• CPC Class Codes: A61B 17/3211 Surgical scalpels, knives; Accessories 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 18/24 with a catheter A61B18/26, A61B18/28 take precedence
• CPC Class Codes: A61B 2018/00589 Coagulation
• CPC Class Codes: A61B 2018/2261 with scattering, diffusion or dispersion of light
• CPC Class Codes: A61B 2018/2266 with a lens, e.g. ball tipped
• CPC Class Codes: A61B 2090/306 using optical fibres

Abstract

The invention is based on the object of specifying a laser scalpel, by means of which a high proportion of the laser light coupled into the scalpel body can be provided on the scalpel edge or is able to emerge therefrom. According to a first aspect, the invention is based on the idea of coupling the laser light into the scalpel body at an acute angle, with respect to the surface normal of the coupling-in surface, that is to say with respect to the direction or axis perpendicular or normal to the coupling-in surface.

Claims

1. A laser scalpel, comprising:

a scalpel body made of a material that transmits laser radiation of at least one specific wavelength band, wherein;

the scalpel body has a scalpel edge and a scalpel back, and the scalpel edge and the scalpel back converge at a point;

the scalpel body has a coupling-in surface for coupling in laser radiation on a rear side facing away from the scalpel edge; and

the coupling-in surface is arranged and dimensioned such that part of the laser radiation coupled in on the coupling-in surface is at least in part reflected towards the scalpel edge by internal reflection on the scalpel back and a further part of the laser radiation coupled in on the coupling-in surface propagates directly through the scalpel body to the scalpel edge thereof or to the tip thereof.

6. The laser scalpel according to claim 1, wherein the rear side of the scalpel body, or at least the coupling-in surface on the rear side of the scalpel body, has a flat or planar design.

9. The laser scalpel according to claim 1, further comprising means for coupling laser radiation into the scalpel body through the coupling-in surface, means for coupling laser radiation into the scalpel body comprise in particular an optical waveguide, in particular an optical fiber, the end of which is set at a distance from the coupling-in surface and/or the optical axis of which runs parallel to the scalpel back.

2. A laser scalpel, comprising:

a scalpel body made of a material that transmits laser radiation of at least one specific wavelength band, wherein;

the scalpel body has a scalpel edge and a scalpel back, and the scalpel edge and the scalpel back converge at a point;

the scalpel body furthermore has a coupling-in surface for coupling in laser radiation on a rear side facing away from the scalpel edge; and

the coupling-in angle for the laser radiation is selected to be between 15° and

55°

at the coupling-in surface.

3. The laser scalpel according to claim 2, wherein the coupling-in angle for the laser radiation is selected to be between 25°

and 45°

on the coupling-in surface.

4. The laser scalpel according to claim 2, wherein the coupling-in angle for the laser radiation is selected to be between 30°

and 40°

on the coupling-in surface.

5. The laser scalpel according to claim 2, wherein the coupling-in angle for the laser radiation is selected to be between 34°

and 36°

on the coupling-in surface.

7. The laser scalpel according to claim 2, wherein the rear side of the scalpel body, or at least the coupling-in surface on the rear side of the scalpel body, has a flat or planar design.

10. The laser scalpel according to claim 2, further comprising means for coupling laser radiation into the scalpel body through the coupling-in surface, means for coupling laser radiation into the scalpel body comprise in particular an optical waveguide, in particular an optical fiber, the end of which is set at a distance from the coupling-in surface and/or the optical axis of which runs parallel to the scalpel back.

8. A laser scalpel, comprising:

a scalpel body made of a material that transmits laser radiation of at least one specific wavelength band, wherein;

the scalpel body has a scalpel edge and a scalpel back, and the scalpel edge and the scalpel back converge at a point;

the scalpel body furthermore has a coupling-in surface for coupling in laser radiation on a rear side facing away from the scalpel edge; and

the coupling-in surface has a greater distance from the scalpel back than from a base surface of the scalpel body, which surface connects the scalpel edge at the end facing away from the tip to the rear side of the scalpel body.

11. The laser scalpel according to claim 8, further comprising means for coupling laser radiation into the scalpel body through the coupling-in surface, means for coupling laser radiation into the scalpel body comprise in particular an optical waveguide, in particular an optical fiber, the end of which is set at a distance from the coupling-in surface and/or the optical axis of which runs parallel to the scalpel back.