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US 5,688,263 AGranted
Laser surgery applicator
AssigneeDornier Medizintechnik GmbH
InventorsGerhard Hauptmann, Werner Rother
Life of this patent
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Abstract
The laser surgical applicator according to the invention is used for contact vaporization of tissue and has a light guide with a quartz glass core at whose distal end a contact tip made of an optically transparent solid material is located. The contact tip has a quartz glass sheath in which at least the quartz glass core of the light guide runs coaxially at a distance from the inside wall and the distal end of the quartz glass core is molten with the distal end of the quartz glass sheath to form an optically transparent tip.
Claims8
Laser surgical apparatus for contact vaporization of tissue comprising:
- a light guide with a quartz glass core;
- a contact tip comprising a quartz glass sheath, said contact tip being arranged at a distal end of the light guide, with a distal end of the quartz glass core being fused with a distal end of the quartz glass sheath to form an optically transparent tip, wherein:
- the quartz glass core of the light guide runs coaxially with and is separated from an inside wall of the quartz glass sheath, by an axially extending gap;
- and
- a transition region of the quartz glass core at a distal end thereof has a diameter which increases, thereby decreasing a width of said gap, with increasing proximity to said optically transparent tip.
2 more elements
Dependencies are inferred from the claim text.