US 9,867,599 B2 · Optical guided vacuum assisted biopsy device

Abstract

An interventional device, e.g. a Vacuum Assisted Biopsy (VAB) needle, incorporating optical fibers such that biological tissue in a volume at a side of the interventional device can be substantially completely optically probed by optical spectroscopy. In a VAB embodiment, a plurality of optical fiber pairs connected to respective optical ports, are placed at opposite positions along the suction cavity, and they are readout subsequently allowing to make a map of the tissue properties along the place where the tissue will be cut by the VAB needle. Based on decision software in an optical console, it can be determined whether the tissue present in the cutting cavity is completely normal tissue or not, prior to actually performing the biopsy on the tissue. In this way a well defined end point for VAB is created. In one embodiment, the optical fibers are arranged in a wall structure of a thin sleeve which fits onto existing VAB needles, thus allowing the VAB needle to be upgraded with an optical probing capability.

Claims13

Dependent claims

An interventional device comprising

a needle structure arranged for being inserted into biological tissue, the needle structure having a cavity positioned to a side of the needle structure and
a plurality of optical fibers externally accessible in one end and connected to optical ports in their opposite end, wherein the optical ports are spatially distributed on surface portions of the needle structure on opposite sides of the cavity, in order to allow optical probing of biological tissue present in the cavity, upon application of an optical signal to one of the plurality of optical fibers at a first side of the cavity and detection of an optical response thereto at another one of the plurality of optical fibers at the opposite side of the cavity.

Interventional device comprising

a needle structure arranged for being inserted into biological tissue, the needle structure having a cavity positioned to a side of the needle structure and
a plurality of optical fibers externally accessible in one end and connected to optical ports in their opposite end, wherein the optical ports are spatially distributed on surface portions of the needle structure on opposite sides of the cavity, in order to allow optical probing of biological tissue present in the cavity, upon application of an optical signal to one of the plurality of optical fibers at a first side of the cavity and detection of an optical response thereto at another one of the plurality of optical fibers at the opposite side of the cavity,
wherein the needle structure comprises a sleeve with a wall forming the cavity as a hollow space, and wherein the plurality of optical fibers are arranged at least partly within a structure of the wall of the cavity.

Dependencies are inferred from the claim text.

Optical guided vacuum assisted biopsy device

Life of this patent

Optical guided vacuum assisted biopsy device

Life of this patent

Abstract

Claims13