For three-dimensional segmentation from two-dimensional intracardiac echocardiography imaging, the three-dimension segmentation is output by a machine-learnt multi-task generator. The machine-learnt multi-task generator is trained from 3D information, such as a sparse ICE volume assembled from the 2D ICE images. The machine-learnt multi-task generator is trained to output both the 3D segmentation and a complete volume. The 3D segmentation may be used to project to 2D as an input with an ICE image to another network trained to output a 2D segmentation for the ICE image. Display of the 3D segmentation and/or 2D segmentation may guide ablation of tissue in the patient.

To provide a catheter having a simple structure capable of excising an atheroma in a blood vessel and capable of obtaining ultrasonic images of a blood vessel. [Solution] A catheter 10 has a shaft 11 having an opening 20 in a part of the side wall on the distal end side, a cutter 12 which is located in the vicinity of the opening 20 in the internal space of the shaft 11 and which can move in the axial direction 101 of the shaft 11, a balloon 23 which is disposed on the side opposite to the opening 20 with respect to the axis of the shaft 11 and which outwardly expands from the side wall of the shaft 11, and a phased array ultrasound probe 17 disposed along the circumferential direction 102 of the outer peripheral surface of the side wall in the vicinity of the opening 20 at least on the same side as the side where the opening 20 is provided with respect to the axis of the shaft 11.

A surgical system includes: an endoscope capable of acquiring an endoscopic image of a surface of target tissue; an ultrasonic probe capable of acquiring an ultrasonic tomographic image of the target tissue; a treatment instrument; a display; and a controller including a memory and a processor. In response to the ultrasonic probe being inserted into the body cavity and the ultrasonic tomographic image being acquired, the processor is configured to: detect a position of the ultrasonic probe with respect to the endoscope; store the ultrasonic tomographic image associated with the position of the ultrasonic probe; and in a state in which the treatment instrument remains inserted in the body cavity, detect a position of the treatment instrument, read out the stored ultrasonic tomographic image on a basis of the detected position of the treatment instrument, and command the display to display the read-out ultrasonic tomographic image.

For robotically operating a catheter, a medical catheter is controlled by rotation of the catheter as well as steering in one or more planes of a distal end of the catheter. To robotically rotate the catheter, a handle is rotated. The steering is performed separately using one or more knobs on the handle. The rotation of the handle complicates the robotic control of the knob. A mechanical decoupling is used so that rotation of the handle maintains the position of the knob relative to the handle. Gearing or transmission is used to avoid independent control of the knob and handle rotation. In an alternative or additional approach, the handle may be robotically controlled while also guiding the catheter shaft spaced away from the handle, allowing fine-tuned control of the catheter at the access point to the patient.

A catheter having a lumen includes a tube, a sensor unit disposed at a distal end of the tube and capable of transmitting and receiving ultrasound, and an irradiation unit disposed at the distal end of the tube and capable of emitting the ultrasound toward a guide wire which passes through the lumen and protrudes from the distal end of the tube. The shape of the biological tissue can be observed by transmitting the ultrasound from the sensor units toward the biological tissue and receiving the reflection wave reflected by the biological tissue at the sensor units. Irradiating the guide wire with the ultrasound transmitted from the irradiation unit causes the guide wire to vibrate. The vibration of the guide wire can facilitate the passage through an occlusion site of the biological tissue.

A system for deploying needles in tissue includes a controller and a visual display. A treatment probe has both a needle and tines deployable from the needle which may be advanced into the tissue. The treatment probe also has adjustable stops which control the deployed positions of both the needle and the tines. The adjustable stops are coupled to the controller so that the virtual treatment and safety boundaries resulting from the treatment can be presented on the visual display prior to actual deployment of the system.

A transperineal biopsy guide including a guide member and a displacement member supported by the guide member. The guide member may be configured to operably couple with the transrectal probe and may include a distal end, a proximal end opposite the distal end, and a length extending along a longitudinal axis between the distal and proximal ends. The displacement member may be configured to support the access needle and displace the access needle along at least a portion of the length of the guide member between the distal and proximal ends. The access needle may extend into the subcutaneous tissue when the access needle is displaced to the distal end.

A system and method for prostate cancer treatment under local anesthesia includes creating a superficial skin and subcutaneous block in a perineal area of a patient by administering a first anesthetizing agent; creating a deep nerve block under ultrasound guidance by administering a second anesthetizing agent, the second anesthetizing agent infiltrating cavernosal nerve bundle tissue and periprostatic space; and ablating prostate tissue. The office-based method, statistical models and computer generated treatment plans identify and ablate prostate tissue containing cancer through or via the perineum while preserving prostate function, and critical anatomical structures. Multiple technologies are integrated and processed to deliver a safe treatment procedure, under local anesthesia by integrating the information of magnetic resonance imaging and planning the ablative treatment using algorithms that ensure maximal precision in both killing cancerous tissue and preserving healthy tissue along with its corresponding function.

Systems and devices for resecting and removing tissue or organs from the interior of a patient's body, in a minimally invasive laparoscopic procedure while preventing any dispersion of potentially malignant tissue during the resection process.

A diagnostic imaging catheter is disclosed, which is capable of preventing a solution from an internal space of a hub from flowing into a portion communicating with the internal space of the hub and to which the signal lines such as the optical fiber and the electric signal cable are electrically or optically connected. The optical diagnostic catheter includes a rotatable drive shaft, an elongated sheath configured to be inserted into a biological lumen, a hub that includes a port connected to the sheath for supplying the solution, a connector portion that includes an optical connector accommodated in an internal space of the hub and optically connected to an external optical connector, a first seal portion that prevents the solution from the port from flowing into a first connection portion, and a second seal portion that prevents the solution from the port from flowing into a second connection portion.