45results about How to "Improve surgical accuracy" patented technology

The invention provides a cardiovascular interventional virtual surgery simulation system based on force feedback. The cardiovascular interventional virtual surgery simulation system comprises a displacement collecting unit, a force feedback mechanism, a motor driver, a processor and a computer, wherein the displacement collecting unit comprises a guide wire displacement collecting unit, a balloon catheter displacement collecting unit and a guiding catheter displacement collecting unit; and the force feedback mechanism comprises a guide wire force feedback mechanism, a balloon catheter force feedback mechanism and a guiding catheter force feedback mechanism. The cardiovascular interventional virtual surgery simulation system is used for simulating the movement sense and the force sense in the process of inserting guide wires, catheters and the like in vascular intervention therapy. The surgery accuracy is high, the repeatability is good, the training cycle of doctors can be shortened, and the surgical risk is reduced.

The invention provides a robot for otorhinocranial base minimally invasive operations and an operation method thereof, comprising a linear movement mechanism, a rotation mechanism, a deflection control mechanism, a clamp control mechanism and a continuous body mechanism, wherein, the linear motion mechanism and the rotating mechanism drive the deflection control mechanism, the clamping mechanism and the continuous body mechanism to move and rotate integrally so as to make the continuous body mechanism reach the preset position; the continuous body mechanism comprises a continuous body support,a plurality of continuous body joints, a nickel-titanium tube embedded in the continuous body joints, a clamp fixture and a clamp; the deflection control mechanism and the clamping mechanism controlsthe continuous body mechanism to perform the deflection action back and forth through the wire, and clamping or loosening of the clamp; and the robot is used for minimally invasive operations of theotorhinocranial base. The robot is used for otorhinocranial base minimally invasive operation, has the advantages of smaller size, larger bending angle and simple operation, can meet the needs of clinical operation, has high operation accuracy and good repeatability, can shorten the doctor's training cycle and reduce the operation risk.

The invention relates to a method for establishing virtual reality assisted surgery based on medical images. The method comprises the following steps: acquiring volume data of specific tissues from amedical tomographic image of a patient, processing the volume data, and generating a three-dimensional human body tissue model represented by a tetrahedral network; according to the virtual reality glasses, a 3D model operating room is constructed, which is equivalent to the real operating room. The 3D human tissue model is added to the 3D model operating room, and a collision detection bounding box is added to the tissues in the tissue model to detect whether the tissues collide with each other in the simulated operation. The control device associated with the 3D model operating room is matched with the tissue model to obtain the matching relationship, so that the user can use the control device to perform virtual reality assisted surgery. The above method utilizes the tissue data extracted from the patient CT image data for three-dimensional modeling, and restores the real human tissue and surgical scene with the help of virtual reality equipment, so as to achieve the immersion and interaction caused by virtual surgery.

A surgical robot system for stereotactic surgery, according to the present disclosure, may include: a stereotactic surgery unit to move and rotate a surgical instrument; a controller to receive the first imaging data that represents a three-dimensional image of a surgical portion that includes a surgical target; one or more markers to be attached to, or disposed near, the surgical portion; an imaging unit to create the second imaging data that represents a three-dimensional external image of the surgical portion; and a tracking unit to track the positions and postures of the imaging unit and the markers. The controller may create the coordinate conversion relationships for converting a coordinate from the first coordinate system of the first imaging data into the fourth coordinate system of the stereotactic surgery unit and control the stereotactic surgery unit by using the coordinate conversion relationships above.

A surgical system includes a surgical assist robot including a robot main body and a slave controller, and a console. The robot main body has an entry guide, an entry guide support device, and at least one manipulator having an end effector provided at a distal end. The entry guide includes an inner cylinder, an outer cylinder into which the inner cylinder is inserted in an insertion axial direction, and a guide advancing device that displaces the inner cylinder in the insertion axial direction with respect to the outer cylinder. While a position and a posture of the end effector that has advanced from the entry guide are maintained, the inner cylinder is caused to advance toward the end effector within a predetermined movable range along the insertion axial direction with respect to the outer cylinder.

A device for tissue dissecting and cutting in endoscope surgery which primarily comprises a holding part, a transmitting part and a cutting part. The holding part offers stable support for the surgeon to perform operation without incurring sway. The transmitting part is a straight force delivery system that can deliver the force straight and forward from the holding part to the cutting part. By using this device, the surgeon can deliver the exact force for the endoscope surgery.

The embodiment of the invention discloses a method for navigating and positioning a dual-arm surgical robot. The method is used for precise positioning of a medical robot arm and comprises an operating table car with a mesa coordinate system. Obtaining medical image information of patients; According to the outline of the lesion outlined by the patient's medical image information, a three-dimensional visualized lesion model was constructed to determine the coordinates of the surgical target points in the three-dimensional visualized lesion model, and the navigation path of the navigation manipulator was planned. The coordinate mapping relationship between the patient surface coordinate system and the table coordinate system is established, and the navigation manipulator is controlled to move to the table coordinate corresponding to the coordinates of the surgical target. The navigation and positioning method of the dual-arm surgical robot does not require additional optical positioningor electromagnetic positioning device, thereby saving cost, saving operating room space and improving surgical accuracy.

The invention provides a rehearsal evaluation method and system for a surgical operation based on a three-dimensional image, and the method comprises the steps: S1, performing the three-dimensional modeling of a to-be-operated human body part; S2, performing surgical operation simulation of a three-dimensional model of a human body part through an input terminal; S3, sensing the position and pressure amplitude through a position sensor and a pressure sensor on the input terminal during the operation; S4, recording the position data and pressure data of operation at each step, and displaying anoperation result on the three-dimensional model of the human body part. The method achieves the simulation of the surgical operation of the three-dimensional model by using an external input device,records position data and pressure data, determines the optimal position and pressure according to the result of the surgical operation simulation, is used for evaluation by an expert and the rehearsal training for students, enhances the accuracy of surgery, saves the results of the surgery at a cloud side after the operation so as to facilitate the use of future evaluation, and achieves a balanced sharing of medical resources.

The invention relates to a pulse fracture healing overall process stress measuring device, which comprises a fixed support, a pressure display instrument of the fixed support and a computer, and also comprises a pressurization support, a pressure display instrument of the pressurization support and a control module of the pressurization support, wherein the pressurization support is electrically connected with the pressure display instrument of the pressurization support and the control module of the pressurization support, the computer is electrically connected with the control module of thepressurization support, the pressurization support comprises a first pressurization support, a second pressurization support, a tension spring, linear bearings, a speed reduction motor, a first pressurization support shaft, a second pressurization support shaft and a pressurization sensor, the two parallel linear bearings are fixedly connected with each other, the first pressurization support shaft and the second pressurization support shaft are respectively sleeved in one linear bearing, the speed reduction motor is connected with one end of the tension spring, the other end of the tension spring is connected with the pressurization sensor, the pressurization sensor is installed on the first pressurization support, and the fixed support shaft is separated into two sections and is connected with the pressurization sensor through the fixed support. The pulse fracture healing overall process stress measuring device has a simple structure, and accurately and reliably measures.

Disclosed is a femoral trochanter vertex pulp opening guider. The femoral trochanter vertex pulp opening guider is characterized in that a plane (6) is arranged at an edge on one side of a finger guider (1), one to three kirschner wire guiders (3) are arranged on the plane (6), a handle (5) is arranged on the other side of the finger guider (1), both the finger guider (1) and the kirschner wire guiders (3) are tubular, a hole in the finger guider (1) is called a finger guide hole (2), a hole in each kirschner wire guider (3) is called a kirschner wire guide hole (4), and the kirschner wire guiders (3) are arranged on the outer plane (6) of the finger guider (1). The femoral trochanter vertex pulp opening guider helps orthopedists to solve problems of inaccurate positioning and large fluoroscopy number commonly seen during closed reduction femoral trochanter vertex positioning pulp opening, X ray injuries to patients and doctors during operations are reduced, and operation accuracy is improved and operation time is shortened.

The invention provides a multi-modal medical image fusion method and system based on deep learning. The method comprises the following steps: acquiring two-dimensional medical images of at least two modals of a patient; inputting the two-dimensional medical images of the at least two modalities into a pre-trained corresponding image segmentation network model so as to respectively obtain the output of the two-dimensional medical image of each modal body position area; based on a point cloud registration algorithm, performing point cloud registration fusion on the two-dimensional medical image of each modal body position area to obtain a multi-modal fused two-dimensional medical image; and processing the multi-modal fused two-dimensional medical image to obtain a multi-modal fused three-dimensional medical image. The multi-modal medical image registration precision is high, the invention is suitable for various complex image fusion conditions, the operation accuracy of an operator can be improved, and the operation efficiency can be improved.

The invention relates to the technical field of medical instruments, and discloses a positioning puncture device for cardiology department surgery. The positioning puncture device comprises two groups of fixing blocks and sleeving ring blocks which sleeve the fixing blocks and can slide up and down, and the sleeving ring blocks are rectangular blocks with hollow interiors. When the integral device performs a surgery on a patient, connecting bottom plates at the bottoms of the two groups of fixing blocks can be fixedly connected with an external bed body mechanism in a threaded mode through fixing screw rods and second external threads, so that a puncture needle at the bottom of a puncture rod can be adjusted and shaken through a movable adjusting ball, and the bottom of the puncture needle is aligned to the surgical position of the patient; and the angles of the puncture rod and the puncture needle on the movable adjusting ball are fixed and limited, the puncture rod has certain stability, the puncture rod is extruded in the movable adjusting ball to drive the puncture needle to perform a surgery on the patient, so that the stability of the puncture rod and the puncture needle is ensured, and the operation risk of the patient is reduced.

The invention relates to an image exposure imaging method, an imaging device and a readable storage medium. The image exposure imaging method comprises the following steps: providing a local exposure mode; and according to a determined man-machine interaction instruction, executing the local exposure mode to perform exposure processing on a selected target region of interest, and then displaying an image of the target region of interest after the exposure processing. Through the configuration, a user can obtain a good man-machine interaction mode, and the operation efficiency is improved; and a region of interest can be accurately exposed according to a man-machine interaction instruction, so that a clearer and more accurate view is provided for a doctor, the operation accuracy is improved, and harm of an operation to a patient is relieved.

The invention relates to the technical field of operating lamp brackets, and discloses a multi-angle adjusting lamp bracket for an operating room. The bracket comprises a fixed plate, a housing is fixedly mounted at the bottom of the fixed plate, a shell positioned on the right side of the housing is fixedly mounted at the bottom of the fixed plate, a connecting column is fixedly mounted at the bottom of the shell, an auxiliary frame is movably installed outside the connecting column, a display screen is fixedly installed at the bottom of the auxiliary frame, a grip is fixedly installed at thebottom of the display screen, a main frame is movably installed outside the connecting column, a connecting piece is movably installed on the left side of the bottom end of the main frame, a camera is fixedly installed on the left side of the connecting piece, and a lamp body is fixedly mounted at the top of the connecting piece. According to the multi-angle adjusting lamp bracket for the operating room, shooting and displaying can be conducted at a light source, operation hindrance is reduced, operation accuracy is improved, meanwhile, the exterior of a shadowless lamp can be directly cleaned and disinfected, use is more convenient and easier, and postoperative equipment recovery cleaning operation is facilitated.

The invention relates to an operation fixing frame component and an image guiding operation system, and belongs to medical operation equipment. The operation fixing frame component fixes an expected part of a body to be operated on the operation equipment, and the operation fixing frame component is provided with a developing area or a developing point identified by a scanning device or a positioning tracking device. The operation fixing frame component can fix the expected part of the body to be operated on the operation equipment, and is provided with the developing area or the developing point identified by the scanning device or the positioning tracking device, so that scanning can be carried out simultaneously in an operation process, operation accuracy can be improved, the operationinfection risk can be reduced, and the operation time can be shortened.

The invention relates to a surgical positioning assembly and a magnetic resonance compatible surgical navigation system. According to the surgical positioning assembly and the magnetic resonance compatible surgical navigation system, a supporting frame can move at least in two degrees of freedom relative to the expected position of the body of a patient, so that the surgical positioning assembly can achieve conversion of at least two degrees of freedom, and the surgical implementation difficulty is reduced. In addition, according to another surgical positioning assembly, a coil generating a magnetic field is arranged in the expected position area of the body of the patient and connected with a magnetic resonance system to achieve radiography before and in the surgical process, so that thespatial position of a positioning target point is obtained in the surgery, radiography and target position positioning can be synchronously conducted, the surgical accuracy can be improved, the surgical infection risk is reduced, and the surgical time is shortened. The surgical positioning assembly and the magnetic resonance compatible surgical navigation system are suitable for implantation medical surgery or interventional medical surgery, especially implantation medical surgery or interventional medical surgery compatible with nuclear magnetic resonance.