摘要:
An endoscope system is for generating an image of tissue to be examined. The system is adapted to deliver radiation with a first polarization to the tissue, and a return polarization control system is provided in the path between the tissue and the receiver. It has an electrically controllable adjuster with an array of adjuster pixels which are independently controllable to implement a local polarization control in respect of local regions of the image. In this way, the image can be enhanced in a pixelated way to give the best possible imaging of tissue beneath the surface.
摘要:
The present invention relates to guidance in lung intervention procedures like lung biopsy. In order to provide further improved needle guidance, a device (10) for guidance in a lung intervention procedure comprises an input unit (12), a data storage unit (14), a data processing unit (16), and an output unit (18). The input unit provides current tracking data of at least one first reference marker relating to a subject's abdomen area and of at least one second reference marker relating to the subject's thorax area. The data storage unit provides a 3D motion model of a torso of the subject comprising at least the lung and a part of the abdomen area. The 3D motion model is based on pre-operationally acquired image data of the subject. The data processing unit registers the reference markers with the 3D motion model, and determines a current motion of the reference markers. The data processing unit also transfers the current motion of the reference markers to the 3D motion model, and adapts the 3D motion model based on the transferred current motion. The data processing unit adjusts positions of predetermined lung structures within the 3D motion model, and adjusts a planned trajectory of an interventional device according to the adjusted positions to provide a live-adjusted trajectory path. The output unit is configured to provide the adjusted trajectory for the lung intervention procedure. In an example, a guidance system (50) is provided that comprises such device and also a marker tracking device (54) that tracks at least one first reference marker relating to the subject's abdomen area and at least one second reference marker relating to the subject's thorax area and that provides the current tracking data.
摘要:
The present invention relates to a system (10) for navigating and positioning an instrument (12, 40, 112) in a body (14). The instrument (12, 40, 112) is detectable by the system (10) and the system (10) displays a view to an operator. The instrument (12, 40, 112) is adapted to identify tissue parameters. The system (10) is adapted to display an image being a combined image of the interior of a body (14) and an indication of the tissue parameter at the appropriate earlier locations. The present invention further relates to a method (44) including determining tissue parameters and displaying the parameters in an image of a body (14). The present invention further relates to a software implemented method (44) for being executed on a digital processor. The present invention further relates to an instrument (12, 40, 112).
摘要:
The invention relates to a system 8 for assisting a user in placing a penetrating device in tissue like a pedicle screw 7 in a vertebra's pedicle. The system generates a virtual view 20 from a penetrating device tip perspective within the tissue in the direction of a path 21 through a model of the tissue. The virtual view is generated based on tracking information indicating a pose of the penetrating device, the model and the path, wherein the virtual view is configured such that it indicates a direction in which the user should move the penetrating device while placing it in the tissue. For instance, it can show a virtual tunnel 801 which is arranged along the path. If a user like a surgeon is provided with such a virtual view, the user can position the penetrating device along the path with a significantly increased accuracy.
摘要:
The invention relates to an ultrasound device (1) insertable into a patient body (2) for in-situ ultrasound imaging. The device (1) comprises an ultrasound transducer device (4) having an imaging surface (5) for contacting tissue to be imaged and being attached to a support element (21). The support element (21) comprises a gripping member (21, 23) configured for being at least temporarily affixed to the tissue and wherein the gripping member (21) at least partly surrounds the imaging surface (5) of the ultrasound transducer device (4) in a plane essentially parallel to the imaging surface (5). By means of the gripping member (21, 23), the device (1) can automatically be held at an imaging position. Further, the device (1) does not require an elongated shaft for manipulating the ultrasound module, which could interference with other surgical devices.
摘要:
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.
摘要:
The present invention relates to an optical fiber connector arrangement that finds application in the general field of optical interconnection. The optical fiber connector arrangement (935) comprises a first optical fiber connector (922) including a first optical fiber (905) and a counterpart optical fiber connector (923) including a counterpart optical fiber (925); wherein the first optical fiber connector (922) is configured to mate with the counterpart optical fiber connector (923). The first optical fiber (905) of the first optical fiber connector (922) has a core diameter D1 and a Numerical Aperture NA1; and the counterpart optical fiber (925) of the counterpart optical fiber connector (923) has a counterpart core diameter D2 and a counterpart Numerical Aperture NA2. At least one of the ratio (D1/D2) or the ratio (NA1/NA2) either exceeds 1.15 or is less than 0.85.