Patent ID: 9687156
Date: 2017-06-27
CPC Classifications: A61B

Claim:
1. A needle device comprising: a hollow shaft having a first distal end portion with a bevel, an elongated insert having a second distal end portion and being movably arranged within the hollow shaft, wherein the second distal end portion of the elongated insert comprises a front surface with at least one of a beveled portion, a stepped portion and a blunt portion; a first optical fiber having a front surface, wherein the front surface is arranged at the front surface of the elongated insert; operating means being shiftable between a first condition and a second condition, wherein the operating means is interconnected with the elongated insert, so that the second distal end portion is located within the hollow shaft and proximally to the bevel, when the operating means is in the first condition, and that the second distal end portion is located outside the hollow shaft and distally to the bevel, when the operating means is in the second condition; and a switch configured to trigger an optical measurement though the first optical fiber in response to shifting of the operating means between the first and second conditions.