Needle device with an optical fiber integrated in a movable insert

Patent metadata

Field	Value
Publication number	US-9687156-B2
Application number	US-201214342442-A
Country	US
Kind code	B2
Filing date	Sep 7, 2012
Priority date	Sep 8, 2011
Publication date	Jun 27, 2017
Grant date	Jun 27, 2017

Abstract

A needle device includes a hollow shaft, an elongated insert and an operating lever. The hollow shaft has a first distal end portion with a bevel, the elongated insert has a second distal end portion and is movably arranged within the hollow shaft, and the operating lever is shiftable between a first condition and a second condition. Furthermore, the operating lever is interconnected with the elongated insert such that the second distal end portion is located within the hollow shaft and proximally to the bevel when the operating lever 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 lever is in the second condition.

First claim

The invention claimed is:

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.

2. The needle device of claim 1 , further comprising a second optical fiber with a front surface, wherein the front surface of the second fiber is arranged at the front surface of the elongated insert, wherein the front surface of the first optical fiber is arranged distally relative to the front surface of the second optical fiber.

3. The needle device of claim 2 , further comprising:
a console including a light source, a light detector and a processing unit or processing signals provided by the light detector, wherein one of the light source and the light detector is connected with the first optical fiber and the other one of the light source and the light detector is connected with the second optical fiber.

4. The needle device of claim 1 , wherein the operating means includes elements of at least one of an electromagnetic drive and an electrically driven mechanical drive.

5. The needle device of claim 1 , wherein the operating means includes elements for manually shifting the operating means between the first condition and the second condition.

6. The needle device of claim 1 , wherein the operating means includes a first lever and a second lever, wherein the first lever is rotatable between the first condition and the second condition, and wherein the second lever is arranged between the first lever and the elongated insert, so that a rotational movement of the lever is converted in a translational movement of the elongated insert.

7. The needle device of claim 1 , wherein the elongated insert is spring-biased in a direction to a position in which the second distal end portion of the elongated insert is located within the hollow shaft and proximally to the bevel of the hollow shaft.

8. The needle device of claim 1 , further comprising at least one bearing for supporting a translational movement of the elongated insert within the hollow shaft.

9. The needle device of claim 1 , further comprising:
a console including a light source, a light detector and a processing unit for processing signals provided by the light detector, wherein the light source and the light detector are connected with the first optical fiber.

10. The needle of claim 1 , wherein the switch activates the optical measurement when the operating means is in the second condition.

11. 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 optical fiber having a front surface, wherein the front surface is arranged at the front surface of the elongated insert;
an operating lever being shiftable between a first condition and a second condition, wherein the operating lever is interconnected with the elongated insert such that the second distal end portion is located within the hollow shaft and proximally to the bevel when the operating lever 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 lever 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.

12. The needle device of claim 11 , further comprising a further lever, wherein the lever is rotatable between the first condition and the second condition, and wherein the further lever is arranged between the lever and the elongated insert such that a rotational movement of the lever is converted in a translational movement of the elongated insert.

13. The needle device of claim 11 , wherein the elongated insert is spring-biased in a direction to a position in which the second distal end portion of the elongated insert is located within the hollow shaft and proximally to the bevel of the hollow shaft.

Assignees

• Bierhoff Waltherus Cornelis Jozef
• Hendriks Bernardus Hendrikus Wilhelmus
• Van Gaal Franciscus Marinus Antonius Maria
• Koninklijke Philips Nv

Inventors

• Bierhoff Waltherus Cornelis Jozef
• Hendriks Bernardus Hendrikus Wilhelmus
• Van Gaal Franciscus Marinus Antonius Maria

Classifications

• A61B5/0086

  using infrared radiation · CPC title

• A61B5/6848

  Needles · CPC title

• A61B5/0084 Primary

  for introduction into the body, e.g. by catheters (A61B5/1459 takes precedence) · CPC title

• A61B5/0075

  by spectroscopy, i.e. measuring spectra, e.g. Raman spectroscopy, infrared absorption spectroscopy (A61B5/0071 takes precedence) · CPC title

• A61B5/0071

  by measuring fluorescence emission · CPC title