6 results about "Mediastinum" patented technology

The invention relates to a biopsy device and method for transvascular puncture, and belongs to the technical field of minimally invasive biopsy. Comprising a catheter body provided with a puncture section, and an end hole and a side hole are formed in one end of the puncture section; the puncture assembly is arranged in the catheter body in a sliding mode, and the puncture assembly conducts puncture sampling through the end hole or the side hole; the first balloon is positioned on one side, far away from the end hole, of the puncture section; the second balloon is located on the side, close to the end hole, of the puncture section, and the second balloon is distributed relative to the side hole. The device is used for solving the technical problem that in the prior art, safety and sampling sufficiency are difficult to consider in focuses close to the periphery of pulmonary vessels or with clear blood supply vessels, pulmonary porta and mediastinal septum.

The invention belongs to the technical field of medical instruments, and particularly relates to a mediastinal puncture device for thoracic surgery, which comprises a shell, a puncture needle and a sampling needle, a through groove is formed in the tube wall of the puncture needle, the sampling needle is inserted into the shell in a sliding manner and is positioned in the puncture needle, four sampling grooves are formed in the end part of the sampling needle in the circumferential direction, and the sampling grooves are communicated with the through groove. Different sampling grooves can be aligned with the through grooves in the puncture needle by rotating the sampling needle, and continuous sampling is realized by controlling the puncture depth; the needle head assembly is inserted into the end part of the puncture needle in a sliding manner; the warning assembly comprises a sensing part, a triggering part and an alarm part which are arranged in the shell, and an adjusting part arranged on the shell. According to the invention, concession and early warning can be realized, single-time puncture multi-point sampling can be realized, different tissue environments can be flexibly adapted, and the safety and diagnosis accuracy of mediastinal puncture can be remarkably improved.

This invention relates to the field of medical devices and discloses a fiber optic sensing-based early warning device and method for thrombosis in the lumen of a hemodialysis catheter. The fiber optic sensing-based early warning device for thrombosis in the lumen of a hemodialysis catheter includes a catheter body, a fiber optic sensing component, a data transmission module, a signal processing module, and an early warning module. The catheter body has an arterial lumen, a venous lumen, and a central mediastinum located between the arterial and venous lumen. This invention, by at least partially disposing the fiber optic sensing component within the central mediastinum of the hemodialysis catheter, makes the central mediastinum both a separating structure between the arterial and venous lumen and a structural carrier for converting venous pressure changes into fiber optic strain signals. The central mediastinum can generate corresponding micro-strains, which are sensed by the fiber optic sensing component, enabling continuous monitoring of the thrombosis formation trend within the hemodialysis catheter lumen.

The invention belongs to the technical field of medical instruments, and particularly relates to a thoracoscope septum distraction device which comprises a main body, the main body is connected with an endoscope tube and an observation tube, and the main body is externally communicated with an access tube; the opening part comprises a supporting rod, the supporting rod is connected with a rotating disc, and the rotating disc is provided with a traction rope A and a traction rope B; the driving part comprises a limiting pipe, and a sliding plate is connected into the limiting pipe; the connecting part comprises a plurality of sets of sliding blocks, the two sides of each sliding block are connected with the traction rope A and the traction rope B respectively, inner cavities of the sliding blocks are connected with inserting blocks in a sliding mode, the inserting blocks stretch out of the sliding blocks and are connected with the sliding plate, and locking plates are arranged in the inner cavities of the sliding blocks. When endoscopic observation and treatment operation of the mediastinal septum are carried out, the endoscope can stretch into the mediastinal septum through the access pipe, the operation process is reduced, multiple sets of supporting rods can be synchronously driven or a single supporting rod can be controlled to carry out distraction operation according to requirements, distraction angle and requirement diversification is achieved, and harm to a patient is reduced.

The present disclosure relates to a lung segmentation, lung disease evaluation method and device, electronic equipment and storage medium, and relates to the technical field of DR lung image segmentation. The segmentation method comprises: acquiring a segmentation model of a preset convolutional neural network, a DR lung region label image used for training the segmentation model, and a plurality of DR lung images to be segmented at multiple moments in a breathing process or a breath-holding state; wherein the method for determining the DR lung region label image used for training the segmentation model comprises: respectively performing rib edge boundary, lung apex boundary, and mediastinum and diaphragm edge detection on left chest images and right chest images of the plurality of DR lung region images to obtain the DR lung region label image; training the segmentation model by using the DR lung region label image; and completing left lung and / or right lung segmentation of the plurality of DR lung images to be segmented based on the trained segmentation model. Lung region segmentation and lung disease evaluation of DR lung images can be realized.

The invention belongs to the technical field of medical equipment, and particularly relates to an anterior mediastinal surgery three-dimensional imaging device based on a structured light binocular camera, the anterior mediastinal surgery three-dimensional imaging device comprises an operation handle, an extension rod is rotatably mounted on the operation handle, an imaging head is rotatably mounted at the end of the extension rod, and the end face of the extension rod and the end face of the imaging head are obliquely arranged; the imaging mechanism is arranged on the imaging head, the imaging mechanism comprises two cameras which are installed on the imaging head in a sliding mode, and the two cameras are symmetrically arranged; the anti-fog mechanism is arranged on the imaging head, the anti-fog mechanism comprises a circulating pipe fixedly connected to the imaging head, and the circulating pipe is located on the outer side of the camera and used for adjusting the temperature of the camera. According to the invention, the distance between two eyes can be adjusted through the sliding camera, and the rotation angle of imaging of the camera and the orientation direction of the camera can be adjusted through the rotating extension rod and the imaging head.