19 results about "Endoluminal surgery" patented technology

This invention provides a transcervical access system for moving fluids transcervically. [Solution] The transcervical access system 100 is effective in transferring a wide range of fluids into the uterine cavity, including the delivery of a hydrogel precursor, saline solution, and imaging fluid. The transcervical access system 100 is also effective in removing fluids, such as residual bodily fluids, residual fluids from procedures, or tissue from the uterine cavity. The transcervical access system 100 includes a flow limiter, such as an outflow limiter 106 and / or a cervical plug. A method of using the transcervical access system 100 involves using the transcervical access system 100 to transcervically access the uterine cavity and to install the hydrogel. The transcervical access system 100 and related methods are useful in preventing adhesions after intrauterine procedures by providing a biodegradable hydrogel within the uterine cavity, including the cervix.

The application provides a lumen surgery instrument action classification method based on kinematic appearance fusion and related devices. The method comprises the following steps: S1. acquiring a lumen surgery video frame sequence and an instrument tip motion trajectory; S2. performing appearance feature extraction on the lumen surgery video frame sequence to obtain an appearance feature vector; S3. performing kinematic feature extraction on the instrument tip motion trajectory to obtain a kinematic feature vector; S4. performing feature-level fusion on the appearance feature vector and the kinematic feature vector to obtain a fusion feature vector; S5. performing classification prediction based on the fusion feature vector to obtain an action category probability distribution; and S6. performing time sequence smoothing on the action category probability distribution based on a hidden Markov model to output a final instrument action category and a confidence degree. The application also provides related devices corresponding to the method, and the related devices comprise a device, an electronic device, a computer readable storage medium and a computer program product.

In the present invention, a multifunctional intraluminal instrument for intraluminal surgery comprises a hollow handle having a front end and a rear end, a connecting rod having a socket and a lower end, the lower end being connected to the front end of the hollow handle, a universal joint having a hollow ball head and a base, the ball head being pivotally joined to the socket of the connecting rod, and a top element detachably connected to the base of the universal joint.

This application provides a method and related apparatus for detecting protrusions of key anatomical structures in endoscopic surgery based on temporal multi-hypothesis fusion. The method includes: S1. acquiring intraoperative video clips and instrument movement logs; S2. generating candidate protrusion regions for each frame; S3. performing temporal matching and voting fusion on the frame-by-frame candidates to obtain temporally stable candidate protrusions; S4. performing multi-hypothesis anatomical semantic generation on the temporally stable candidate protrusions to obtain a set of candidate anatomical categories; S5. performing size-morphology-color three-dimensional evidence fusion on the candidate anatomical category set to obtain the final anatomical category; S6. performing multi-dimensional risk scoring based on the final anatomical category, location coordinates, instrument tip coordinates, and instrument movement type, outputting graded risk warnings and differentiated avoidance suggestions. This application also provides related apparatus corresponding to the method, including devices, electronic devices, computer-readable storage media, and computer program products.

The application provides an endoluminal surgery bleeding event detection method based on optical flow-color double-flow fusion and related devices. The method comprises the following steps: S1, acquiring an endoluminal surgery video frame sequence; S2, performing HSV color space conversion and red channel enhancement on each frame to obtain a color anomaly map; S3, performing dense optical flow calculation on adjacent frames to obtain an optical flow field; S4, performing double-flow fusion detection based on the color anomaly map and the optical flow field to obtain a bleeding candidate region; S5, performing time sequence persistence verification on the bleeding candidate region to obtain a time sequence stable bleeding region; and S6, outputting a bleeding event classification and a position coordinate based on the area and the diffusion speed of the time sequence stable bleeding region. The application also provides related devices corresponding to the method, and the related devices comprise devices, electronic equipment, computer readable storage media and computer program products.

Herein disclosed is a robot apparatus having two or more robot units, each robot unit is configured to maneuver on an intracavity surgical device, such as a catheter, a guide wire, or tools for laser ablation. Also included is a reciprocating conveyor having a motion converter, such as a scotch yoke, coupled with a rail slider to produce linear reciprocating movements to bring the robot units back and forth from and towards a patient. A load measuring device is also included to sense both the axial force and the torque exerted on the surgical device and based on the real time load measurement, to control the scotch yoke and the robot unit more accurately for inserting the intracavity surgical device into or withdrawing it from the surgical subject.

This application provides a method and related apparatus for intracavitary surgical navigation overlay based on multi-type feature joint detection and confidence-aware rendering. The method includes: S1. acquiring real-time endoscopic images and a preoperative three-dimensional anatomical model; S2. performing multi-type feature joint detection to obtain a set of multi-type feature points; S3. performing pose estimation based on RANSAC PnP; S4. performing dynamic transformation on the preoperative three-dimensional anatomical model based on the pose transformation matrix to obtain a transformed three-dimensional anatomical model, and performing visibility clipping; S5. performing confidence-aware differential semi-transparent rendering on the transformed and clipped visible three-dimensional anatomical model; S6. outputting a multi-scene overlay view. This application also provides related apparatus.

When conducting technical training and evaluations for intraluminal surgery, there was a demand for a way to observe catheter behavior, particularly the movement of wires inside the catheter sheath, more clearly without using X-rays. If there is a difference between the amount of polarized light component imaged by the light receiving unit in the light originating from the sheath and the amount of polarized light component imaged by the light receiving unit in the light originating from the material surrounding the sheath, the sheath can be displayed in a identifiable manner on the image. Because the light receiving unit receives polarized light components, light reflected or scattered at the interfaces of the materials constituting the object of observation is substantially eliminated, resulting in a clear image.

This invention relates to the field of medical device technology, specifically disclosing a closed-loop control system for an AI energy platform used in urological surgery. By real-time acquisition of visual and bioimpedance data of the surgical area, a topological relationship graph of the surgical area is constructed, with tissue partitions as nodes and spatial adjacency and functional connectivity as edges. Key node groups representing critical blood vessels are identified, and by analyzing all associated paths from non-critical nodes to key node groups, the propagation risk of energy operation is calculated, generating quantified risk assessment parameters. These parameters are then fused with the risk assessment parameters of the target node, tissue type probability, and real-time bioimpedance change rate. Matching energy control commands are generated to drive a laser or plasma generator to execute precise energy output. Changes in tissue state after the action are captured and fed back, forming a closed-loop control. This invention achieves proactive quantitative protection of key anatomical structures and adaptive precise energy control, improving surgical safety and operational efficiency.

The invention relates to the technical field of medical apparatus and instruments, and particularly discloses an AI energy platform closed-loop control system for urinary intracavity surgery, which comprises the following steps: by collecting visual and biological impedance data of a surgical area in real time, constructing a surgical area topological relation graph taking tissue partitions as nodes and taking a spatial adjacency and function communication relation as edges; according to the method, a key node group representing key blood vessels is identified, and by analyzing all associated paths from non-key nodes to the key node group, the propagation risk of energy operation is calculated, quantitative risk assessment parameters are generated, and risk assessment parameters of target nodes, tissue type probability and real-time biological impedance change rate are fused. By generating a matched energy control instruction, a laser or plasma generator is driven to execute precise energy output; the tissue state change after action is captured again and fed back, and closed-loop control is formed; according to the invention, active quantitative protection of a key anatomical structure and self-adaptive precise regulation and control of energy are realized, and the safety and operation efficiency of an operation are improved.

The invention discloses a single-hole multi-channel surgical device with an adjustable circulating air inlet and smoke exhaust system. The single-hole multi-channel surgical device comprises an instrument platform, a plurality of instrument channels arranged on the instrument platform, an air inlet and smoke exhaust connector arranged at the near end of the instrument platform, and an air inlet and smoke exhaust channel with one end communicated with the air inlet and smoke exhaust connector; the air inlet and smoke exhaust built-in port is formed in the far end of the instrument platform and communicated with the other end of the air inlet and smoke exhaust channel, the air inlet and smoke exhaust channel is adjustably installed on the fixing and adjusting assembly, and the angle direction and the position of the air inlet and smoke exhaust channel and the air inlet and smoke exhaust built-in port in the operation cavity can be adjusted and fixed by operating the fixing and adjusting assembly. The real-time pressure measuring interface is arranged on the instrument platform; the incision protection sleeve is arranged at the far end of the instrument platform; by means of the single-hole device integrating a directionally-adjustable air inlet and smoke exhaust system and a real-time pressure measuring function, active, accurate and intelligent control over the intracavity operation environment, view definition and pressure stability is achieved while minimally invasive surgery is guaranteed.

Various embodiments of the present disclosure encompass an endoluminal therapy system employing an endoluminal therapy device (21) and an endoluminal therapy monitoring controller (10). In support an endoluminal procedure, the endoluminal therapy device (21) is controlled to treat a site to be treated within a lumen. The controller (10) is operated to synchronize an activated dwell timing of the endoluminal therapy device (21) within the lumen to a tracked positioning of the endoluminal therapy device (21) contiguous with the site to be treated within the lumen. The controller (10) is further operated to monitor the site to be treated within the lumen induced by the endoluminal therapy device (21) during the synchronization by the controller (10) of the activated dwell timing of the endoluminal therapy device (21) within the lumen to the tracked positioning of the endoluminal therapy device (21) contiguous with the site to be treated within the lumen.

An intracavitary surgical instrument comprises an operation component and a driving component that disassembled from each other, thus making full use of multiple wounds of endoscopic surgery, so that the operation component and the rod member may be placed into the cavity from wounds at different positions, reducing the corresponding wound size of the rod member, and improving the recovery speed of patients after surgery. Besides, in the assembly process of the intracavitary surgical instrument, the traction portion may pull the operating component to move in the opposite direction with the driving component, so as to facilitate the assembly of both. Meanwhile, the traction portion may further make the first operating arm and the second operating arm close to each other through the pulling action, so as to realize the electrocoagulation of biological tissues by the first operating arm and the second operating arm, and simplify the operation action.

A system and method that provides navigation guidance for intraluminal procedures comprises: a catheter configured to be inserted into a lumen receive an actuating force from an actuator; and a tracking system configured to acquire position and orientation of the catheter with respect a lumen. A processor in communication with the actuator and the tracking system is configured to: register a position and / or orientation of the catheter tip with respect to a reference target, and generate one or more satellite targets in a region of interest surrounding the reference target. A display screen displays a virtual representation of the distal end of the catheter, and a virtual representation of the one or more satellite targets, as navigation guidance. A user is able to determine how to align the catheter tip with the one or more satellite targets to perform an intraluminal procedure.

An instrument for intracavity surgery in narrow spaces comprises a universal joint and an elastic part, wherein the elastic part is threadedly and detachably engaged with the universal joint for micro self-locking to improve vibration resistance and positioning stability. By bending the elastic part, the user can flexibly adjust the angle range of scraping, supporting, or cleaning tissues. The present invention also comprises at least one operating part to realize the function of field of vision cleaning, fluid guiding, and elimination.

The utility model relates to the technical field of vascular intracavity surgical instruments, and discloses a micro puncture vascular sheath suite, which comprises a dilator, a sheath tube, a puncture needle and a core wire, the far end of the dilator is provided with a first conical surface part, the far end of the sheath tube is provided with a second conical surface part, the sheath tube and the second conical surface part are both sleeved outside the dilator, and the puncture needle is arranged in the sheath tube. The taper of the second conical surface part is smaller than that of the first conical surface part, the puncture needle is matched with the core wire, the core wire comprises a reducing wire, a winding spring and a metal head, the reducing wire is composed of a round section a, a conical section a, a round section b, a conical section b, a flat section a and a flat section b which are sequentially distributed from front to back, the winding spring is connected to the conical section a in an attached mode, and the metal head is connected to the metal head in an attached mode. The core wire has the effects of multi-section bending strength and stress tendency, and can prevent a blood vessel from being easily punctured, so that the risks of hematoma at a surgical approach part of the micro-puncture blood vessel sheath kit and blood vessel leakage at a puncture part are reduced.

This application provides a method and related apparatus for extracting fascial planes in intracavitary surgery based on multi-scale gradient fields. The method includes: S1. acquiring intracavitary surgical images; S2. constructing multi-scale images based on Gaussian pyramids and calculating gradient fields for each scale image to obtain multi-scale gradient fields; S3. performing fascial response enhancement on the multi-scale gradient fields based on Hessian matrix eigenvalues ​​to obtain fascial response maps; S4. extracting candidate fascial band contours from the fascial response maps based on morphological operations; S5. performing plane fitting on the candidate fascial band contours based on the least squares method to obtain fascial plane parameters; S6. outputting the fascial plane parameters and the visualization overlay result on the intracavitary surgical images. This application also provides related apparatus corresponding to the method, including devices, electronic devices, computer-readable storage media, and computer program products.

This application provides a method and related device for risk warning of endovascular surgery based on surgical stage perception and temporal trend prediction. The method includes: S1. Real-time acquisition of multi-source data and surgical stage labels from endovascular surgical videos; S2. Querying a configurable scoring table based on the surgical stage labels; S3. Calculating sub-item scores based on the distance between the instrument tip coordinates and anatomical structures based on the scoring table; S4. Obtaining a comprehensive risk score by weighted summation of the sub-item scores based on dynamic weights and performing trend prediction to obtain a risk trend prediction value; S5. Classifying the comprehensive risk score based on multi-level thresholds to obtain a multimodal graded warning result; S6. Outputting the warning result in a structured form and performing self-learning updates based on surgeon feedback. This application also provides related devices corresponding to the method, including devices, electronic devices, computer-readable storage media, and computer program products.

This application provides an adaptive windowing method and related apparatus for annotated interfaces based on deep semantic segmentation and multi-region priority fusion. The method includes: S1. acquiring intracavitary surgical images and a set of target anatomical categories; S2. performing deep semantic segmentation on the surgical images based on a deep semantic segmentation architecture to obtain a set of anatomical regions, including vascular, neural, muscular, fat, and fascial regions; S3. querying the differential windowing parameters corresponding to each anatomical region based on an anatomical category-windowing parameter mapping matrix; S4. obtaining multiple windowed sub-images based on a dynamic windowing transformation formula using contrast, brightness, and gamma correction parameters; S5. performing weighted fusion on the multiple windowed sub-images based on multi-region priority to obtain fused pixel values; S6. receiving interactive input and performing adaptive learning updates based on historical preferences. This application also provides related apparatus.