The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In autonomous suturing with a surgical robot, needle shape, diameter, and path are critical parameters that directly affect suture depth and tissue trauma. This paper presents an optimization-based approach to specify these parameters. Given clinical suturing guidelines, a kinematic model of needle-tissue interaction was developed to quantify suture parameters and constraints. The model was further...
Robotic surgical assistant systems can transcend the precision of surgical procedure by integrating the position information of patient and robot in the surgical room. There are two conventional integration methods, the real-time position tracking and physically fixing. In clinical cases, the former has the problem of increasing radiation exposure; so physical fixation is more commonly used in robotic...
Differential diagnosis on ectopic lymph node-resulting mass and fibroadenoma of breast, galactoma and breast cancer is analyzed through the report of rare superficial ectopic lymph node of right breast. B-ultrasound scan, mammography of breast and other auxiliary examination ways can be definitely applied to the preliminary understanding of mass properties, and fine needle aspiration cytology and...
In this paper, the power distribution in the breast and heart model is analyzed during the microwave breast cancer treatment with the incidence of plane wave based on the simulated results by FEKO. Three cases of needle insertion with different diameters are considered to find the best convergence effects on the tumor region. Comparing the simulated results, the conclusion can be drawn that when the...
In minimally invasive surgery, steerable needle is needed to perform medical tasks in the deep of a human body. In some cases, a one-direction bendable needle can satisfy actual needs. Therefore, a one-direction bendable articulated needle is proposed in this paper. The proposed needle consists of a beveltip head, articulations, and sections. Articulations can only be bent along the tip direction...
We propose a robust method for localization of elongated surgical tools in 3D ultrasound data based on shape analysis. The tubular structures in input data are enhanced by a line filter in the pre-processing phase. A new model of a surgical tool appearance in 3D ultrasound image is proposed which exploits its tubular shape. The tool axis is estimated with robust model fitting using a randomized RANSAC...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.