Abstract:
A system may generally comprise a tracking device, an ultrasound device and a processing unit. A position and orientation of the ultrasound device may be traceable by the tracking device. The processing unit may be configured (i) to receive 3D information of a region of interest in relation to a marker, with both the region of interest and the marker being located within a body, (ii) to determine the position of the marker relative to the ultrasound device based on an ultrasound image of the body including the marker, and (iii) to determine the position and orientation of the ultrasound device relative to the tracking device. The system may further comprise a visualization device and the processing unit may further be configured to generate a visualization of the region of interest in relation to an outer surface of the body.
Abstract:
The present invention relates to an optical fiber connector for mating a first group of one or more optical fibers (102) with one or more corresponding optical fibers in a second group of one or more optical fibers (103). The optical fiber connector includes a shutter (105), which prevents the ingress of debris into the connector, and provides an optical reference surface with which to calibrate optical fibers that are inserted into the connector. The optical fiber connector finds application in the general optical fiber field, and more particularly finds application in the medical field in which it may be used to connect optical fibers in a photonic needle application.
Abstract:
An orthopedic pin (100) for optically analyzing a bone region (110) includes an elongate shaft (101) and at least one optical fiber (105). The elongate shaft has a circular outer cross section with a first diameter (D1), a distal end (102) for insertion into bone, a proximal end (103), and an optical connector portion (104) disposed towards the proximal end (103). The at least one optical fiber (105) extends within the elongate shaft (101) between the optical connector portion (104), and the distal end (102) for transmitting optical radiation between the optical connector portion (104) and the bone region (110) when the distal end (102) is inserted into the bone region (110). The optical connector portion (104) comprises a reduced-diameter portion (106). The reduced-diameter portion (106) extends along at least a portion of the elongate shaft (101), and has an outer cross section comprising a width (Drd) perpendicularly with respect to the elongate shaft (101). The width (Drd) is less than the first diameter (D1).
Abstract:
A biopsy device includes a tubular member, a hollow shaft and an elongated fiber body having at least one optical fiber. The hollow shaft has a laterally (sidewardly) facing notch in its distal portion. The tubular member is movable relative to the shaft, between a first position in which the notch is covered by the tubular member, and a second position in which the notch is not covered by the tubular member. The shaft is movable between a first position in which the distal end of the optical fiber is located at the distal end of the shaft with the elongated fiber body extending through the notch, and a second position in which the distal end of the at least one optical fiber is located proximally to the notch.
Abstract:
A biopsy device is provided comprising a tubular member, a hollow shaft and an elongated fiber body. The hollow shaft may have a distal end and a shaft, wherein a laterally (sidewardly) facing notch is formed in the distal portion of the shaft. The elongated fiber body may include at least one optical fiber, preferably at least two optical fibers, with a distal end. The tubular member is movable relative to the shaft, between a first position in which the notch is covered by the tubular member, and a second position in which the notch is not covered by the tubular member. The fiber body is movable within the shaft, between a first position in which the distal end of the optical fiber is located at the distal end of the shaft with the elongated fiber body extending through the notch, and a second position in which the distal end of the at least one optical fiber is located proximally to the notch.
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.
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.
Abstract:
A biopsy device is provided comprising a tubular member, a hollow shaft and an elongated fiber body. The hollow shaft may have a distal end and a shaft, wherein a laterally (sidewardly) facing notch is formed in the distal portion of the shaft. The elongated fiber body may include at least one optical fiber, preferably at least two optical fibers, with a distal end. The tubular member is movable relative to the shaft, between a first position in which the notch is covered by the tubular member, and a second position in which the notch is not covered by the tubular member. The fiber body is movable within the shaft, between a first position in which the distal end of the optical fiber is located at the distal end of the shaft with the elongated fiber body extending through the notch, and a second position in which the distal end of the at least one optical fiber is located proximally to the notch.
Abstract:
The present invention relates to guidance during a medical intervention. In order to provide an improved navigation support with a facilitated setup, a system (10) for navigation support is provided. An image data input (12) receives a plurality of acquired 2D X-ray images of a subject's body from different angles. A set of markers, which are visible in X-ray images and which are detectable by a navigation system, is assigned to the subject. A marker detecting arrangement (16) is provided that detects a current spatial location of the markers assigned to the subject. A data processor (14) reconstructs a 3D volume of the subject based on the plurality of 2D X-ray images. At least a part of the markers is arranged outside the volume covered by the reconstructed 3D volume of the subject, while the markers are visible in the 2D X-ray images. The data processor (14) identifies the markers in the 2D X-ray images based on image data of the plurality of 2D X-ray images outside the 3D volume and determines a spatial location of the markers in relation to the 3D volume of the subject. The data processor (14) also registers the reconstructed 3D volume of the subject to a current spatial position of the subject based on the detected current spatial location of the markers and the determined spatial location of the markers in relation to the 3D volume of the subject. An output interface (18) provides the registered reconstructed 3D volume for navigation.
Abstract:
A biopsy device is provided comprising a tubular member, a hollow shaft and an elongated fiber body. The hollow shaft may have a distal end and a shaft, wherein a laterally (sidewardly) facing notch is formed in the distal portion of the shaft. The elongated fiber body may include at least one optical fiber, preferably at least two optical fibers, with a distal end. The tubular member is movable relative to the shaft, between a first position in which the notch is covered by the tubular member, and a second position in which the notch is not covered by the tubular member. The fiber body is movable within the shaft, between a first position in which the distal end of the optical fiber is located at the distal end of the shaft with the elongated fiber body extending through the notch, and a second position in which the distal end of the at least one optical fiber is located proximally to the notch.