Fiber retaining device for power laser

A medical laser scalpel comprising:

• a cylindrical lens mount guide sleeve,
• a lens mounted proximate a first end of said sleeve,
• a cylindrical tube received in a second end of said sleeve and slidably retained therein, said tube being formed with a through-hole having a frusto-conical section formed at an intermediate section thereof and having internal threads formed proximate one end thereof,
• an integrally molded fiber retainer positioned within the through-hole of said cylindrical tube for holding and accurately centering a bundle of optic fibers, said fiber retainer including a cylindrical centering member having a central hole, a frusto-conical chucking member spaced from said centering member having a central hole aligned with the central hole in said centering member and a plurality of slits extending along the length thereof and inwardly from the surface thereof,
• a holding ring coupled to said cylindrical member having external threads formed thereon enmeshed with the internal threads formed in the cylindrical member securing said retainer in said cylindrical tube and for urging said frusto-conical chucking member into engagement with the frusto-conical portion of said through-hole to urge the sides of said frusto-conical member together to retain and accurately center a bundle of fibers in said retainer and said tube.