12 results about "Angiography device" patented technology

The application relates to a speed adjusting method of an angiography device, the angiography device and a storage medium, wherein the angiography device comprises a hand brake, the speed adjusting method of the angiography device comprises the following steps: in response to a control operation on the hand brake, the motion speed of the angiography device is controlled to change along with the change of the control operation on the hand brake. Through the application, the problem that the motion speed of the device cannot be accurately controlled is solved, and the motion speed of the device is accurately controlled.

The invention relates to the technical field of medical instruments, in particular to a control method and system for a magnetic drug carrier, and the method comprises the steps: applying a test alternating magnetic field to a magnetic container by adopting magnetic targeting equipment, and collecting a test area image sequence by adopting angiography equipment; registering with a magnetic field gain parameter sequence of the test alternating magnetic field to obtain a registration sequence; extracting a stable parameter interval from the magnetic field gain parameter sequence, and measuring the test area image sequence according to the stable parameter interval to obtain a movement parameter of the magnetic container; and measuring the blood fluidity according to the movement parameters to obtain control and regulation parameters. Aiming at the problem that the blood internal environment of a patient may influence the driving effect of magnetic targeting equipment, after the patient enters a preset artery area, a test alternating magnetic field in a specific direction is applied through the magnetic targeting equipment, a magnetic container is driven to move and measure to obtain the actual blood fluidity of the patient, and control is performed based on the parameter. The movement efficiency of the magnetic container is improved, and the operation time is shortened.

This utility model discloses an angiography device, comprising: a support arm with a ring structure, wherein a support bearing is fixedly installed in the inner ring region of the support arm, and three sets of X-ray components are installed inside the support bearing. The three sets of X-ray components are evenly arranged in the circumferential direction of the support arm, and each set of X-ray components includes a pair of oppositely arranged X-ray parts and receiving parts; and a first driving unit for driving the inner ring of the support bearing to rotate along its central axis, wherein the rotation angle range of the support arm driven by the first driving unit is not less than 90°. This utility model increases the feasible installation range of the X-ray components by setting the support arm with a ring structure, and the three sets of X-ray components are evenly arranged on the support bearing inside the support arm to achieve three-dimensional imaging of the patient's examination site. At the same time, the setting of the first driving unit can also realize the rotation of the three sets of X-ray components relative to the patient, thereby achieving effective angiography results for patients with different body positions and physical conditions.

A surgery assistance device includes a processor that sets a predetermined time interval corresponding to a pulsation cycle of a heart and sequentially acquires an angiographic image representing a target blood vessel into which a medical device is inserted at the predetermined time interval. The processor sequentially corrects the angiographic image sequentially acquired and generates a corrected angiographic image by correcting the angiographic image to be corrected in such a manner that a position of a specific portion of the medical device included in the angiographic image to be corrected approaches a position of the specific portion of the medical device included in the angiographic image acquired temporally earlier than the angiographic image to be corrected.

A surgery assistance device includes an angiographic image acquisition unit that sets a time interval corresponding to a pulsation cycle of a heart as predetermined intervals and sequentially acquires an angiographic image representing a target blood vessel into which a medical device is inserted at the predetermined intervals, and an image correction unit that sequentially corrects the angiographic image sequentially acquired by the angiographic image acquisition unit, and that generates a corrected angiographic image by correcting the angiographic image to be corrected in such a manner that a position of a specific portion of the medical device included in the angiographic image to be corrected approaches a position of the specific portion of the medical device included in the angiographic image acquired temporally earlier than the angiographic image to be corrected.

The invention discloses a vascular intervention system and method, and relates to the technical field of vascular intervention surgeries, and the system comprises a control terminal, an angiography device, a catheter bed device, an intervention device, an electromagnet device and a derivation device. The angiography device can image the blood vessel of the patient on the catheter bed device from different angles at the same time, and the control terminal can construct a more complete and accurate three-dimensional blood vessel model conveniently. The head of the intervention device is provided with a magnetic material, the electromagnet device comprises at least one electromagnetic ring, and a plurality of electromagnets are uniformly distributed on each electromagnetic ring, so that a control terminal can accurately control the intervention device provided with the magnetic material by controlling a magnetic field generated by the electromagnets. The derivation device comprises a driving device, the intervention device is arranged on the driving device, the driving device is arranged on the catheter bed device, the control terminal can control the driving device to further accurately control the intervention device to move in the blood vessel, and then the accuracy of intervention operation is improved.

The disclosure provides solutions for reducing exposure to radiation in digital subtraction angiography. For this, a method for generating a virtual mask image is proposed. A plurality of images of an object is captured by an angiography apparatus. For at least some of all pixel positions, an extreme pixel value of the pixels of the plurality of images in the respective pixel position is respectively ascertained. The virtual mask image is created from the extreme pixel values at the respective pixel positions.

The invention provides a radiography device and a using method, and relates to the technical field of radiography devices.The radiography device comprises a scanning assembly, and the scanning assembly is suitable for obtaining three-dimensional information of the aortic arch and branch blood vessels on the aortic arch according to preoperative blood vessel image data of a patient; the molding assembly is suitable for customizing the pipe head according to the three-dimensional information; the radiography tube comprises a tube head and a tube body, the tube head is provided with a sealing part, the inner circumferential wall of the tube body is provided with a sealing groove suitable for containing the sealing part, and the sealing part is suitable for expanding when gas or fluid is introduced into the radiography tube. According to the radiography device, the tube head of the radiography tube is customized according to the preoperative blood vessel image data of the patient, so that the radiography tube can better adapt to individual blood vessel differences of different patients, the fitting degree and the adaptability of the tube head and the blood vessel are improved, efficient radiography and treatment are achieved, and meanwhile the radiography effect is improved. The sealing part is contained in the sealing groove and can expand when gas or fluid is introduced into the radiography tube, and the sealing performance between the tube head and the tube body is improved.

An imaging department CT radiography device used for guiding the body position of a patient comprises a bedstead base, a scanning bed is connected to the bedstead base, a bed body is slidably connected to the scanning bed, the bed body is hollow, a screw is rotatably arranged in the bed body, a motor is further arranged in the bed body, an output shaft of the motor is connected with the screw, a movable frame is arranged on the screw, and the movable frame is connected with the scanning bed. The two sides of the movable frame are connected with an extrusion frame through supporting arms, the end of the extrusion frame is an inclined plane, a movable groove is formed in the bed body, a handrail is rotationally connected to the position, at the movable groove, of the bed body, the handrail is connected with a corner bracket, and the corner bracket is matched with the extrusion frame in an extrusion mode. Movement of the movable frame is controlled only through the motor, the armrests are rotated and lifted firstly, the placement space of the arms is physically occupied, a patient is forced to place the hands on the headrest in the posture of holding the head, and the effect of completely unfolding the thorax is achieved; a linkage lower belt pulley and a screw rod form a rotating whole, and a linkage rotating piece rotates to assist the patient in breathing.

The invention relates to the technical field of medical instruments, in particular to an auxiliary decision-making system for bronchial artery embolism and a spring ring operation method, and the system comprises an image recognition module, a case scene analysis module and an interactive display terminal. The image recognition module receives a bronchial artery angiography image transmitted by the angiography equipment, the case scene analysis module receives a responsible blood vessel recognition result and scene feature information, and the interactive display terminal receives and presents the responsible blood vessel recognition result, the scene feature information, an embolism strategy and decision suggestions. Receiving a correction operation of a doctor on the embolism strategy and the decision suggestion, and outputting a personalized embolism scheme according to the correction operation; the output end of the image recognition module is connected with the input end of the case scene analysis module, and the output end of the case scene analysis module is connected with the input end of the interactive display terminal. Through image processing, strategy generation, correction supporting and spring ring matching operation, disease adaptation, error reduction, safety protection and treatment standardization promotion are realized.

A method (10) comprising receiving at least one temporal sequence of digital images (Min) acquired (RC) via an imaging apparatus (A). For example, the imaging apparatus is an X-ray angiocardiography apparatus (e.g., coronary). The method (10) further comprises: analyzing a set of images in the temporal sequence of images (Min) comprising a region of interest indicative of a stenosis (e.g., coronary); processing the set of images via an artificial neural network, ANN (10, 110) processing chain. The ANN (10, 110) processing chain comprises: an input ANN processing stage (100) configured to apply a convolutional neural network, CNN, processing to the set of images, resulting in a set of features (Sf); a set of transformer ANN processing layers (102, 104) configured to apply at least one factorized self-attention ANN processing layer to the features in the set of features, resulting in a set of transformed features (Sff, Ht); an output ANN processing stage (106) configured to apply further CNN processing to the transformed features in the set of transformed features (Sff, Ht), resulting in an output vector (V); an analysis stage (110) configured to apply at least one multilayer perceptron, MLP, processing to the output vector (V), resulting in a set of signals (O1; O2, O3) indicative of a classification (112) and / or regression (114; 116) of the functionality of the stenosis (e.g., coronary).

The invention belongs to the technical field of medical instruments, and particularly relates to a bidirectional radiography three-way device for interventional operation, which comprises a main flow tube, one end of the main flow tube is connected with two shunt tubes, the main flow tube is provided with a threaded head for connecting an injector, the shunt tubes are symmetrically provided with guide plates, and the guide plates are connected with the main flow tube. Positioning shafts are arranged on the supporting plate in an array mode, a reset mechanism used for resetting the supporting plate is arranged in the guiding plate, an electromagnetic plate is arranged at the bottom of the guiding plate, and a sealing mechanism is arranged on the flow dividing pipe. According to the bidirectional radiography three-way device for the interventional operation, a radiography catheter and the three-way device can be conveniently connected through a positioning shaft and a reset spring, the catheter is arranged on a shunt pipe in a sleeving mode, an electromagnetic plate stops working, the reset spring resets to pull a supporting plate to reset, and a groove corresponding to the positioning shaft is formed in one end of the catheter; after one end of the positioning shaft enters the groove, the position of the guide pipe can be positioned, and the purpose of improving the connection stability of the guide pipe is achieved.