18 results about "Cardiovascular procedures" patented technology

The invention belongs to the technical field of medical instruments, and particularly relates to a guide wire insertion guiding device for cardiovascular surgery, which comprises a frame, a handle fixedly connected to the side surface of the frame, driving wheels symmetrically arranged on a strip-shaped frame, driven wheels rotationally arranged on the strip-shaped frame in an array manner, and a driving motor arranged in the strip-shaped frame, a driven mechanism is arranged in the strip-shaped frame, a ventilation pipe is fixedly arranged in the driven wheel, a connecting cylinder is movably connected to the bottom end of the ventilation pipe, a communicating pipe is fixedly connected to the bottom of the connecting cylinder, and a flow dividing pipe is arranged in the strip-shaped frame. According to the guide wire insertion guiding device for the cardiovascular surgery, the temperature of a guide wire can be conveniently adjusted by adopting an electric heating block and a driven wheel, the machine works to generate wind flowing, the electric heating block works to heat a shunt tube, and when wind flows in the shunt tube, the driven wheel and the guide wire are heated; the temperature of the guide wire is close to that of a human body, and adaptability of the guide wire insertion guiding device for cardiovascular surgery is improved.

The invention discloses a cardiovascular intervention clinical surgery auxiliary operation device, and belongs to the technical field of cardiovascular surgeries, the cardiovascular intervention clinical surgery auxiliary operation device comprises a main body module and a puncture module, the main body module comprises a puncture cylinder, a puncture needle is arranged in the puncture cylinder, and a plurality of balls are movably connected in the puncture cylinder; the multiple balls are annularly arranged at equal intervals, the multiple balls are close to one end of the puncture cylinder, an anti-skid groove is formed in the outer surface of the puncture needle, and through the arrangement of the pressure assembly, the pressure sensor, the locking assembly, the lever assembly, the force arm assembly, the locking assembly and the control panel, the sensing sensitivity of a doctor to resistance change is remarkably improved; the accuracy of identifying the'falling sense 'is greatly improved; the pressure sensor monitors the resistance value in real time, when it is detected that the resistance is suddenly reduced, instant mechanical locking of the puncture depth is achieved, the risk that the rear wall of the blood vessel is punctured due to judgment delay or misoperation is greatly reduced, and the operation safety is improved.

The present invention discloses a cardiovascular intervention device, which belongs to the technical field of cardiovascular surgical instruments. The puncture catheter is pre-filled with liquid medicine. As the air pump inputs gas, the mesh stent is stretched and the contracted blood vessel position is expanded. As the air pump continues to inflate, the piston head extends the pointed part from the inflation port of the puncture catheter, punctures the end of the airbag, and the liquid medicine inside the airbag flows out and diffuses at the vascular surgical site. This device can be used to quickly diffuse immediate-acting drugs such as blood vessel recovery and inhibition of endothelial hyperplasia at the surgical site while performing cardiovascular dilation surgery. Compared with applying the drug directly to the mesh stent, this device can input more liquid medicine at one time, and the amount of liquid medicine is controllable. When the liquid medicine reaches the surgical site, it will not be consumed in other positions of the blood vessel, which is more conducive to the treatment of the patient's vascular surgical site. This intervention device is simple to operate, does not affect the progress of the dilation surgery, and has a better treatment effect.

The utility model discloses a kind of cardiovascular postoperative nursing soothing appliances, including bedstead, bed head board, bed board and bed bottom plate, the auxiliary mechanism is movably connected on the bed bottom plate, the auxiliary mechanism includes fixed plate, the side of the fixed plate is detachably connected with bed tail board by locking assembly, the auxiliary walking frame for assisting patient walking is movably connected on the bed tail board, and the bedstead is also movably connected with supporting mechanism, the bottom of the bed board is provided with the adjusting mechanism for easy adjustment;The auxiliary mechanism of bed tail board and fixed plate is connected by inserting and self-locking assembly, and the setting of auxiliary walking frame bottom formula trundle and two sides antiskid handle, when patient changes from lying posture to sitting posture, auxiliary walking frame is automatically contacted with ground, patient can directly use auxiliary walking frame on bedstead and walk exercise, avoid medical staff to transfer patient to cause pain aggravation or secondary injury, reduce manpower consumption and guarantee patient safety.

The application provides a cardiovascular postoperative wound compression structure and belongs to the field of medical devices. The cardiovascular postoperative wound compression structure comprises a plastic binding belt, a compression air bag, a plurality of first support portions and a plurality of second support portions. The plastic binding belt is annular and matches the position to be bound. The plastic binding belt is provided with a plurality of recesses on one side. The compression air bag is connected to the inner side of the plastic binding belt and is provided with a first air port. The first support portions are arranged in the recesses. The second support portions are connected to one side of the plastic binding belt and are provided with anti-skid portions on the outer surfaces. In the state that the plastic binding belt is annularly wrapped on the skin surface and fixed through the magic adhesive assembly, the compression air bag, the first support portions and the second support portions are all in abutment with the skin. The first support portions and the second support portions maintain the gap between the plastic binding belt and the skin, release water vapor and heat, and avoid the formation of a high-humidity environment between the skin and the binding belt.

The invention discloses a device for cerebral hemorrhage risk assessment in the perioperative period of a cardiovascular surgery and a storage medium. The apparatus comprises: a processor; the device realizes the following operations: extracting risk key features, an initial risk assessment result and an SHAP value corresponding to each risk key feature; screening a target lesion type, and calling a preset segmentation model to perform lesion segmentation to obtain a lesion segmentation result; based on the image data and the focus segmentation result, calculating a dynamic weight and endowing a coding feature to obtain a weighted image feature; constructing a knowledge graph; extracting a target sub-image set according to clinical information and an entity set corresponding to the focus segmentation result; obtaining text features; constructing a cross-feature collaborative calibration matrix for feature calibration; and inputting the calibrated features into a multi-mode decoder for decoding to obtain a final risk assessment result. By using the scheme of the invention, accurate and credible risk assessment results and decision support can be provided for clinic.

The invention provides simulated blood, a preparation method thereof and a cardiovascular surgery simulation device.The preparation method of the simulated blood comprises the steps that 10 wt%-30 wt% of glycerinum and 65 wt%-89 wt% of deionized water are mixed to be uniform, and a base solution is obtained; uniformly mixing 0.05 wt%-2wt% of a water-soluble thickening agent with the base solution to obtain a first mixed solution; uniformly mixing 0.1 wt%-2wt% of inorganic electrolyte salt with the first mixed solution to obtain a second mixed solution; and adjusting the pH value of the second mixed solution to 7.2-7.4 by using a phosphate buffer solution to obtain the simulated blood with the viscosity of 3-15 mPa.s and the density of 1.050-1.060 g / cm < 3 >.

The present invention relates to supporting an interventional procedure involving a device, such as a cardiovascular procedure. First and second image data acquired using different imaging apparatus, for example X-ray and ultrasound image data, are co-registered. A device is firstly identified in 2D X-ray images; corresponding identification information is then used to generate a view from 3D ultrasound image data that includes a cross-section of the device to be identified subsequently. Following the identification, a 3D position and orientation of the device are available. Such information may advantageously be used in setting up optimal ultrasound views for image-based guidance of the ongoing procedure.

Disclosed herein are designs for improved inflatable structures for use during minimally invasive cardiovascular procedures. These inflatable structures facilitate the perfusion of blood through an anatomical structure, such as a heart valve, during the cardiovascular procedure. The inflatable structures are formed of a plurality of balloons arranged radially around a central location. The plurality of balloons form a lumen through which blood flows. Each balloon of the plurality is shaped or configured to stabilize the adjacent balloons, limiting their movement relative to each other. For example, some embodiments can feature balloons with a keystone shape that limits movement of the balloons inward toward the lumen. Some implementations can also include a support coil running through the lumen. The support coil holds enables the lumen to be open to perfusion even in the early stages of balloon inflation.

The invention discloses a device for cerebral hemorrhage risk assessment in the perioperative period of a cardiovascular surgery and a storage medium. The apparatus comprises: a processor; the device realizes the following operations: extracting risk key features and an initial risk assessment result based on image data and clinical information of a person to be assessed; multi-scale image features are extracted by using an image encoder, and fused image features are obtained through adaptive weighted fusion; constructing a knowledge graph, and performing entity association depth layering on sub-graphs in the knowledge graph; a target sub-image set is obtained through screening in combination with a sub-image association depth layering result and bilingual text similarity; inputting the clinical information and the target sub-image set into a language encoder to obtain text features; and based on the risk key features and the initial risk assessment result, fusing the image features and the text features to obtain a final risk assessment result. By using the scheme of the invention, accurate and credible risk assessment results and decision support can be provided for clinic.

The invention belongs to the field of angiography injection, and particularly relates to a cardiovascular surgery angiography injection device which comprises a supporting base, a guide seat, a first supporting head, a second supporting head, a supporting table, a positioning assembly, an injector, a pushing assembly and a quantifying mechanism. The bottom of the other end of the supporting table is fixedly connected to the top of the second supporting head, the positioning assembly is installed on the outer wall of one end of the supporting table and used for assembling a liquid storage section of an injector, the pushing assembly is installed on the inner wall of the other end of the supporting table, the output end of the pushing assembly abuts against a pushing head of the injector, and the quantifying mechanism is installed on the top of the supporting table. And the quantitative mechanism supports the pushing section of the injector. Therefore, precise closed-loop control over the pushing amount is achieved, and the problem that a traditional device depends on mechanical stroke or time control and is prone to being affected by specification difference and resistance fluctuation of injectors, and consequently quantitative control precision is insufficient is solved.

The present disclosure provides for an imaging probe with a rotatable core which allows for rotating imaging assembly that is larger in diameter than the lumen in which the rotatable core resides, as well as methods to construct said probes. The imaging probes are generally elongate flexible imaging catheters for use in cardiovascular procedures. The ability to have a smaller lumen to hold the rotatable core simplifies the inclusion of other functional components to the catheter and may improve the quality of the images produced.

This disclosure provides an imaging probe with a rotatable core that allows rotation of an imaging component with a diameter larger than the lumen in which the rotatable core is located, and a method for constructing the probe. The imaging probe is a grossly long, flexible imaging catheter used in cardiovascular surgery. It allows for a smaller lumen to accommodate the rotatable core, simplifies the inclusion of other functional components in the catheter, and improves the quality of the resulting images.

The invention relates to an automatic three-dimensional vascular modeling method for use in the field of cardiology and cardiovascular surgical technique. The automated three-dimensional vascular modeling method of the invention is used in the diagnosis of cardiovascular diseases, pre-surgical planning for cardiovascular surgeries, and 3D reconstruction of vascular grafts for patient-specific treatments.

The present disclosure provides for an imaging probe with a rotatable core which allows for rotating imaging assembly that is larger in diameter than the lumen in which the rotatable core resides, as well as methods to construct said probes. The imaging probes are generally elongate flexible imaging catheters for use in cardiovascular procedures. The ability to have a smaller lumen to hold the rotatable core simplifies the inclusion of other functional components to the catheter and may improve the quality of the images produced.

The invention discloses a cardiovascular postoperative wound compression structure, and relates to the technical field of cardiovascular medical equipment.The cardiovascular postoperative wound compression structure comprises a shell, a lifting mechanism used for relieving compression is arranged in the shell, a circulation mechanism used for reducing skin indentation is further arranged in the shell, and a stabilizing mechanism used for assisting airflow circulation is arranged in the lifting mechanism; an adjusting mechanism for reducing indentations is arranged outside the shell, the lifting mechanism comprises a containing cavity formed in the bottom of the shell, a stand column is fixedly connected into the containing cavity, the lifting mechanism is arranged, a first rotary knob drives a vertical rod to rotate, a connecting rod is pushed through the slope of a trapezoidal block, and the lifting angle and the contact state of a pressing plate can be finely adjusted; the pressing plate is slightly lifted by utilizing the abutting plate, so that the pressure of the pressing plate on the skin is reduced, the static high-pressure state of a traditional air bag is broken, the blood circulation around a wound is improved, and the risks of skin ischemia, subcutaneous tissue necrosis and nerve injury caused by long-time local high pressure are reduced.

The application belongs to the technical field of medical instruments, and particularly relates to a guide wire insertion guide device for cardiovascular surgery, which comprises a frame, a handle fixedly connected to the side of the frame, a driving wheel symmetrically arranged on a strip-shaped frame, a driven wheel arrayed and rotatably arranged on the strip-shaped frame, a driving motor arranged in the strip-shaped frame, a driven mechanism arranged in the strip-shaped frame, a ventilation pipe fixedly arranged in the driven wheel, a connecting cylinder movably connected to the bottom end of the ventilation pipe, a communication pipe fixedly connected to the bottom of the connecting cylinder, and a shunt pipe arranged in the strip-shaped frame. The guide wire insertion guide device for cardiovascular surgery is convenient for adjusting the temperature of the guide wire by adopting an electric heating block and a driven wheel. The working of the device generates wind power flow. The electric heating block works to heat the shunt pipe, and in turn, the wind power flows in the shunt pipe to heat the driven wheel, which heats the temperature of the guide wire, so that the temperature of the guide wire approaches the human body temperature, and the adaptability of the guide wire insertion guide device for cardiovascular surgery is improved.

The invention discloses a device for cerebral hemorrhage risk assessment in the perioperative period of a cardiovascular surgery and a storage medium. The apparatus comprises: a processor; the device realizes the following operations: based on image data and clinical information of a person to be assessed, performing initial assessment by using the basic model, and extracting risk key features and an initial risk assessment result; based on the image data, performing image encoding by using an image encoder, and extracting image features; constructing a knowledge graph; according to the clinical information, extracting a target sub-graph set with the maximum correlation from the knowledge graph; inputting the clinical information and the target sub-atlas into a language encoder for text encoding to obtain text features; and based on the risk key features, the initial risk assessment result, the image features and the text features, decoding by using a multi-mode decoder to obtain a final risk assessment result. By using the scheme of the invention, accurate and credible risk assessment results and decision support can be provided for clinic.