66 results about "Cardiac surgery" patented technology

The invention belongs to the field of cardiac surgery, and particularly relates to a cardiac surgery preoperative pulmonary complication prediction method which comprises the following steps: data preprocessing including abnormal value processing, missing value processing, feature correlation analysis, data discretization and data standardization, abnormal values and irrelevant data in the case data set are filtered and removed, and interference of the abnormal values on follow-up model learning is avoided; according to the method, data quality and feature validity are guaranteed from the source through a hierarchical progressive data preprocessing process; noise interference to model learning is avoided by filtering abnormal values and irrelevant data; for missing values, differentiation processing is carried out according to the missing rate (features with the missing rate larger than 30% are removed, and features with the missing rate smaller than 30% are filled with median, regression prediction or mode according to variable types), compared with an existing model simple filling mode, data deviation is greatly reduced, and data integrity and reliability are improved.

The invention discloses an ultrasonic imaging system and method based on a heart surface, a medium and a product, the system comprises an ultrasonic detection assembly and an imaging terminal which are in communication connection, an ultrasonic transducer is packaged at the head end of an attached ultrasonic probe in the ultrasonic detection assembly, and an acoustic window on the ultrasonic transducer is planar; the ultrasonic transducer is used for being attached to the surface of the heart or the aorta, and the plane of the ultrasonic transducer is parallel to the plane of the acoustic window; and the imaging terminal is used for generating a sound velocity mask pattern according to the reference ultrasonic image, determining echo time delay data according to the sound velocity mask pattern, synthesizing and reconstructing the radio frequency signal data according to the echo time delay data to obtain an ultrasonic image, performing motion compensation on the image sequence, performing multi-modal fusion on the ultrasonic image subjected to motion compensation, and obtaining a final ultrasonic image. The problem of acoustic interference of anatomical structures such as the chest wall and the esophagus in a traditional echocardiography technology is solved, and real-time and high-quality image support is provided for cardiac surgery.

The invention provides a registration method and device in a cardiac surgery and computer equipment, which are used for improving the safety and accuracy of the surgery. The registration method comprises the following steps: acquiring an electrocardiosignal and multi-modal physiological data of a surgical patient, and performing cardiac time phase division on a cardiac cycle based on the electrocardiosignal and the multi-modal physiological data; collecting multi-angle image data of the heart under each cardiac time phase, and synchronously collecting physiological parameter data; performing three-dimensional reconstruction based on the multi-angle image data corresponding to each cardiac time, and mapping the physiological parameter data corresponding to each cardiac time to a corresponding three-dimensional reconstruction result to obtain a multi-temporal three-dimensional heart model library; the method comprises the following steps: acquiring real-time electrocardiosignals and real-time multi-modal physiological data of a surgical patient in a surgical process to identify a current cardiac time phase, selecting a current time phase three-dimensional heart model from a multi-time phase three-dimensional heart model library according to the current cardiac time phase, and performing surgical registration by using the current time phase three-dimensional heart model.

The utility model discloses a kind of postoperative atrial fibrillation monitoring alarm systems, it is related to the technical field of atrial fibrillation monitoring, and it includes: main control module, detection module, storage module, display module, input-output module and alarm module;Detection module detects the electrocardiosignal, pulse voltage signal and heart sound signal of postoperative patient, sends to main control module;Main control module carries out sampling to electrocardiosignal, pulse voltage signal and heart sound signal, and stores to storage module;According to the instruction of input-output module, the signal after selection sampling is displayed through display module, and the signal stored is selected from storage module and is displayed through display module;Threshold comparison unit of main control module sends signal to alarm module according to heart rate signal, pulse signal, heart sound signal and threshold value, and alarm module sends alarm prompt.The utility model can monitor the sign data of postoperative patient and send alarm, remind medical staff to handle in time, reduce the influence of postoperative atrial fibrillation on patient recovery.

This utility model relates to the field of medical equipment technology and discloses a portable cardiac surgery emergency equipment trolley, including a frame. Electric push rods are rotatably connected to the left and right ends of the front top of the frame. A rotating shaft is rotatably connected to the bottom end of each electric push rod. A rotating cover is rotatably connected to the bottom of the rotating shaft. A rotating column is rotatably connected to the rear side of the rotating cover. The bottom of the rotating column is rotatably connected to the rear side of the top wall of the frame. Bolts are threaded onto the left and right sides of the top wall of the rotating cover. A fixing clip is threaded onto the bottom end of each bolt. A locking groove is formed on the bottom wall of the rotating cover, and the top of the fixing clip engages with the locking groove. In this utility model, the fixing clip can be fixed to the emergency equipment by rotating the rotating cover around the rotating column. The bolts can be rotated to change the fixing clip according to different sizes of emergency equipment, improving the stability of the emergency equipment inside the trolley.

The application discloses an ultrasonic probe capable of directly reaching into a heart chamber in a heart operation and relates to the technical field of medical devices. The ultrasonic probe comprises a fixing frame arranged around the heart chamber, the fixing frame being connected with the skin of a patient; a telescopic rod being perpendicular to the fixing frame and being connected with the fixing frame through a spherical hinge, the telescopic rod being capable of extending into the heart chamber of the patient; an ultrasonic probe being arranged on the side wall of the end of the telescopic rod away from the fixing frame, the ultrasonic probe being arranged in the circumference of the telescopic rod, and the ultrasonic probe being provided with a plurality of ultrasonic probes; and a camera being arranged at the end of the telescopic rod away from the fixing frame. The length of the ultrasonic probe extending into the heart chamber of the patient can be changed through the arrangement of the telescopic rod, and the different heart chambers of different patients can be detected. The ultrasonic probe can be fixed on the skin of the patient through the arrangement of the fixing frame. The telescopic rod can be rotated according to the different positions of the diseased parts of different patients through the spherical hinge connection between the fixing frame and the telescopic rod, so that the ultrasonic probe can be in a better detection position.

The invention discloses a postoperative monitoring device for cardiac surgery, and belongs to the technical field of cardiac postoperative monitoring devices. Comprising a drainage device, a shaping assembly is arranged on a drainage pipe of the drainage device, the shaping assembly comprises a shaping plate, mounting plates are symmetrically arranged on the two sides of the shaping plate in the width direction, one end of each mounting plate is fixed to the shaping plate, and sliding pipes are arranged on the two mounting plates; the outer wall of the sliding pipe is slidably connected to the other end of the mounting plate, an abutting plate is arranged at the end, facing the middle of the shaping plate, of the sliding pipe, the abutting plate is fixed to the sliding pipe, a fixing plate is arranged at the other end of the sliding pipe and fixed to the outer wall of the end of the sliding pipe, a sliding column is arranged in the sliding pipe, and the outer wall of the sliding column is fixed to the outer wall of the end of the sliding pipe. And one end of the sliding column is slidably connected to the interior of the sliding pipe. According to the technical scheme, the problem that a drainage channel is narrow or blocked due to the fact that a drainage tube is prone to bending deformation when making contact with the edge of a monitoring bed is solved.

This application provides a stent placement device for cardiac surgery, comprising a cannula with an inlet end and an outlet end; the cannula is divided into 2-3 cannula branches at the inlet end; the cannula accommodates 2-3 stent delivery catheters; one stent delivery catheter is inserted from each cannula branch; all stent delivery catheters exit from the cannula outlet end; each stent delivery catheter has a guidewire lumen and a stent balloon pressure chamber; a guidewire is disposed in the guidewire lumen; a stent implanter is disposed at the tip of the stent delivery catheter, and an ultrasound positioning ball is sequentially disposed at the tip of the stent delivery catheter. This application utilizes a structure consisting of a flexible cannula and multiple stent delivery catheters to conveniently and simultaneously provide precise stent implantation for multiple blood vessels; by incorporating an ultrasound positioning ball with a corner reflector to enhance ultrasound reflection, the implantation and detailed operation of the device can be more easily completed under ultrasound monitoring.

The invention discloses cardiac postoperative wound nursing equipment, and belongs to the technical field of cardiac intervention postoperative nursing. A connecting and supporting mechanism for supporting and mounting the arm fixing mechanism is mounted on the mounting frame; an arm fixing mechanism for positioning and fixing arms of a patient is mounted on the connecting and supporting mechanism; a locking mechanism used for being connected with a sickbed is installed on the installation frame. The connecting and supporting mechanism comprises a hinging assembly, a limiting assembly and an arm rotating assembly; the number of the limiting assemblies is two. The limiting assembly and the mounting frame are both connected with the hinge assembly; the limiting assembly is connected with the arm rotating assembly; the arm rotating assembly is connected with the arm fixing mechanism. By means of the mode, a patient can freely change the bending degree between the large closed forearms when the arms are fixed, the comfort degree of the patient is improved, and meanwhile blood circulation of the arms of the patient is facilitated.

The invention discloses a cardiac postoperative rehabilitation training device, and particularly relates to the field of rehabilitation training devices. Comprising a base, and a T-shaped sliding groove is formed in the base; the seat is arranged on the base and located over the sliding groove; a reset spring is connected between each bearing box and the inner wall of the corresponding sliding groove; the plurality of balancing weights are respectively arranged in the two bearing boxes; each treading block is connected into the corresponding sliding groove in a sliding mode, and a fixing ring is further arranged on one side of each treading block; one ends of the two first traction ropes are connected to the corresponding bearing boxes respectively, and the other ends of the two first traction ropes are provided with drag hooks matched with the fixing rings; and each guide wheel is connected with the corresponding first traction rope in a sliding manner. By the adoption of the technical scheme, the problem that an existing rehabilitation training device cannot enable a patient to conduct autonomous adjustment is solved, the patient can conduct rehabilitation training autonomously according to the condition of the patient, and the training effect is improved.

The application belongs to the field of heart surgery, and particularly relates to a preoperative lung complication prediction method for heart surgery, which comprises the following steps: data preprocessing, including abnormal value processing, missing value processing, feature correlation analysis, data discretization and data standardization; abnormal value processing, filtering to remove abnormal values and irrelevant data in the case data set, so as to avoid interference of abnormal values on subsequent model learning; missing value processing, in which the application guarantees data quality and feature effectiveness from the source through a hierarchical progressive data preprocessing process: filtering of abnormal values and irrelevant data avoids noise interference on model learning, and missing values are processed differently according to missing rate (features are removed when the missing rate is greater than 30%, and features are filled with median, regression prediction or mode according to variable types when the missing rate is less than 30%), which greatly reduces data bias compared with the existing model simple filling method, and improves data integrity and reliability.

The application provides a kind of based on augmented reality navigation heart blood flow imaging system and navigation image generation method, it is related to biomedical optical imaging technical field, the system includes: laser speckle image acquisition unit according to electrocardiogram ECG signal determines acquisition window, and after the imaging focus is actively compensated based on real-time ranging result in the acquisition window, laser speckle image sequence of heart surface is collected;Navigation image generation unit quantifies the degree of stenosis of blood vessel according to blood flow index, and generates blood flow navigation image in combination with laser speckle image sequence;Navigation image projection unit projects blood flow navigation image to the corresponding blood vessel area of heart surface.The application provides based on augmented reality navigation heart blood flow imaging system and navigation image generation method, not only realizes high-fidelity, quantitative blood flow imaging and intuitive, in situ surgical navigation integration, also significantly improves the precision and safety of coronary artery bypass grafting and other heart surgery.

The utility model provides an improved chest strap, and relates to the technical field of cardiac surgery supplies, the improved chest strap comprises a main strap, side straps, a fixing strap and a connecting strap, the two ends of the lower side of the main strap are both connected with the side straps, a cushion strap is clamped and pasted between the two side straps, and through the arrangement of the side straps, the cushion strap and a protection pad, when a catheter penetrates, the fixing strap is fixed to the fixing strap when the catheter penetrates into the fixing strap. The catheter can be placed at any position of the catheter penetrating groove, the catheter penetrating groove adopts a through groove mode and is not limited by the position of the catheter, the applicability of the catheter penetrating groove is enhanced, the cushion belt is placed on the lower side of the catheter and makes direct contact with the skin, foreign body sensation brought by the catheter to a patient is reduced, and the protection pad covers the upper end of the catheter and plays a role in protecting the catheter. Through the arrangement of the fixing band and the connecting band, the hook and the hanging ring are fixed, the third loop face hook-and-loop fastener and the fourth hook face hook-and-loop fastener are fixed in an adhering mode, the double-fixing mode is adopted, the fixing effect is better, the hook and the hanging ring are connected in a relatively fixed mode, and the hook and the hanging ring are not prone to being opened.

The application discloses a preparation method of an antibacterial biological patch for cardiac surgery, and comprises the following steps: first, preparing a Fib@CMC@ABX mixed solution; second, preparing a cross-linking solution, pouring the cross-linking solution on the surface of the biological patch, and sealing and storing the cross-linking solution at 4 DEG C after cross-linking reaction; third, placing; and fourth, soaking in a glycerol solution. The antibacterial coating of the antibacterial biological patch for cardiac surgery prepared by the preparation method is not easy to fall off or crack, the antibacterial coating is firmly attached to the biological patch, the continuity of the antibacterial coating is good, the antibacterial coating has long-acting antibacterial effect, can effectively inhibit bacterial growth, and can prevent postoperative infection, and is suitable for cardiac surgery scenes such as heart repair and pericardial reconstruction.

The utility model discloses a cardiac surgery postoperative wound pressurizing nursing belt, which relates to the technical field of medical nursing and comprises a pressing plate and straps arranged on two sides of the pressing plate, and a plurality of groups of pressurizing air bags are arranged on the pressing plate. The side face of the pressing plate is provided with an inflation inlet used for inflating the pressurizing air bag, and the outer side of the inflation inlet is rotationally sleeved with an air inlet. A plurality of groups of air inflation holes are formed in the air inflation port, and the air inflation holes are communicated with the pressurizing air bag through air delivery pipes; a group of air inlet holes corresponding to the inflation holes are formed in the bottom of the air inlet; an annular positioning seat is fixed to the middle of the inflation inlet, and a wavy guide groove is formed in the inner side of the positioning seat. A guide seat is mounted on the air inlet, and the guide seat is connected into the positioning seat through a reset spring; a guide pin clamped in the guide groove is arranged on the side surface of the guide seat; the specific air bag is independently inflated or deflated by adjusting the states of the inflation inlet and the air inlet.

The application provides a kind of upper arm fixing bag for postoperative patient rehabilitation activity and high blood pressure detection, relating to the technical field of blood pressure detection for postoperative patient rehabilitation.The upper arm fixing bag for postoperative patient rehabilitation activity and high blood pressure detection includes a limiting belt and a fixing shell: a central control mechanism is arranged on the outer side of the front end of the limiting belt, the bottom end of the central control mechanism is connected with an induction patch through a wire harness, a connecting shell is fixedly connected to the left end of the limiting belt, a contraction ring is rotatably connected to the right end of the limiting belt, and the inner side of the connecting shell and the outer side of the contraction ring are connected through a contraction assembly. By accurately calibrating the position of the upper arm, the accuracy of the high blood pressure detection data is effectively guaranteed, the movement of the upper limbs is intelligently limited to protect the surgical incision, the flexible pressure regulating structure avoids discomfort caused by compression of the limbs, the integrated design simplifies clinical operation, and the monitoring data can be transmitted remotely, ensuring the safety of postoperative rehabilitation, detection accuracy and convenience.

The invention relates to the technical field of medical instruments, in particular to a disposable surgical drainage system with an image processing function, which comprises a drainage tube body, a visual component, a near-end connecting structure, a mobile terminal adaptation module and an AI image analysis module, the system aims at solving the technical problems that an existing medical drainage tube is single in function, depends on external imaging equipment for positioning in the implantation process and is prone to causing tissue damage during operation. The drainage tube is technically characterized in that a miniature 4K camera module and an LED lighting source are integrated at the tip of the drainage tube body, and tissue images in front of the tube end can be acquired and transmitted in real time; and the AI image analysis module is matched to complete lesion related parameter acquisition and property auxiliary discrimination. A doctor can directly observe a drainage path and a target area through external equipment and synchronously obtain auxiliary evaluation information. Accurate and safe catheter indwelling and auxiliary diagnosis are achieved. The device is mainly used for clinical drainage operations and bedside monitoring in neurosurgery, general surgery, thoracic surgery, cardiac surgery and abdominal surgery.

The invention discloses a cardiac surgery left heart suction device and relates to the technical field of blood pumps, the cardiac surgery left heart suction device comprises a shell and an adapter fixedly arranged on the shell, a rotation groove is formed in the shell, a boss groove is formed in the middle of the rotation groove, and a backflow pipe communicated with the rotation groove is arranged on the shell; a rotary groove is formed in the shell, a convex connector communicated with the rotary groove is fixedly formed in the shell, threads are arranged on the surface of the convex connector, an annular sealing groove is formed in the end face, away from the shell, of the convex connector, a guiding and connecting mechanism is arranged on the shell, a driving cavity located below the rotary groove is formed in the shell, and a conveying mechanism is arranged in the rotary groove. The shell is provided with a driving mechanism used for providing power for the conveying mechanism. According to the device, by arranging the speed adjusting part, the flowing speed of blood in the device can be adjusted according to the beating frequency of the heart of the patient, and therefore the device can meet the blood pumping requirements of the heart of the patient under different beating frequencies.

A temperature control system for cardiac surgery nursing includes a data processing module, a temperature control module, and a vital signs monitoring module. The data processing module is communicatively connected to both the temperature control module and the vital signs monitoring module. The vital signs monitoring module includes a core temperature sensor, a skin temperature sensor, and an electrocardiogram monitor. The temperature control module includes a heated mattress, side heating units, a top heating unit, and a bottom heating unit. These units form a heating chamber during rewarming. In this invention, the heated mattress, side heating units, top heating units, and bottom heating units form a heating chamber during rewarming, achieving uniform heating with the aid of temperature sensors. The data processing module intelligently controls the rewarming process based on data from the vital signs monitoring module, thereby achieving precise and stable rewarming.

The invention discloses a walking aid for a cardiac postoperative patient, and relates to the technical field of walking aids, the walking aid comprises a concave rod of a hollow structure, the two sides of the concave rod are both longitudinally and slidably sleeved with sleeves, the lower end of each sleeve is rotatably provided with a concave seat, and trundles are installed in the concave seats; the upper side of the concave rod is fixedly sleeved with two armrest sleeves, hand brake mechanisms are arranged at the bottoms of the armrest sleeves, and blood oxygen monitoring sensors are embedded in the upper portions of the armrest sleeves. According to the walking aid for the patient after the cardiac surgery, through the blood oxygen monitoring sensor, when the patient carries out walking training, the blood oxygen degree can be monitored in real time, and data are displayed on the displayer. When the heart rate exceeds a preset value, the buzzer can give an alarm sound to remind a patient to take a rest, and meanwhile data can be transmitted to the mobile phone APP, so that medical staff can conveniently observe the condition of the patient in real time, and the safety of the patient is ensured.

The invention discloses an angle adjusting structure plugging device for cardiac surgery, and belongs to the technical field of cardiac surgery auxiliary medical instruments, the angle adjusting structure plugging device comprises a guide tube, the guide tube is provided with a guide cavity, and the guide cavity is provided with a guide port. According to the scheme, the fixing rod is arranged, the guide plate drives the first magnet to get close to the second magnet while driving the rolling rod to slide along the sliding groove, when the guide plate is in the horizontal state, the distance between the first magnet and the second magnet reaches the shortest distance, and at the moment, under the action of magnetic force, the rolling rod is fixed. A first magnet drives a fixing rod to move downwards and compress a first spring, and the fixing rod is gradually inserted into a fixing groove in the downward moving process, so that a guide plate can be fixed, the situation that a pulling assembly drives the guide plate to incline again, and blocking of a follow-up notch by a conveying sheathing canal is affected is avoided, and meanwhile it is not needed that when the follow-up notch is blocked every time, the follow-up notch is blocked by the conveying sheathing canal. And the guide plates in front of the notches are sequentially pushed to be flattened, so that the effect of improving the operation efficiency is achieved.

The application provides a distal filter brain protection device for use in cardiac surgery, comprising a sleeve with an inlet end and an outlet end; the sleeve is divided into 2-3 sleeve branches at the inlet end; the sleeve contains 2-3 implant sheaths; one implant sheath is introduced from each sleeve branch; the implant sheaths are all led out at the outlet end; the implant sheaths are provided with guide wires, and the front ends of the guide wires are provided with umbrella-shaped filter screen devices; the umbrella-shaped filter screen devices are provided with multiple ultrasonic emission balls containing corner reflectors to enhance the ultrasonic reflection effect of the devices. The distal filter brain protection device of the application can simultaneously provide precise filter implantation and removal for multiple blood vessels, especially two carotid arteries, in cardiac surgery, and the implantation and detailed operation process can be completed under ultrasonic monitoring.

The sternum fixing band comprises an adjusting band assembly, one side of the adjusting band assembly is connected with one end of a first clamping plate, the other side of the adjusting band assembly is connected with one end of a second clamping plate, the other end of the first clamping plate is connected with one end of an elastic band, and the other end of the elastic band is connected with the other end of the second clamping plate. The other end of the elastic band is connected with the other end of the second clamping plate; a first shielding plate is detachably arranged at the position, corresponding to the adjusting band assembly, between the first clamping plate and the second clamping plate, and a second shielding plate is detachably arranged at the position, corresponding to the elastic band, between the first clamping plate and the second clamping plate. According to the utility model, the adjusting belt assemblies are arranged on the two clamping plates, so that the tightness is convenient to adjust, and the two clamping plates are convenient to loosen when the two clamping plates are not repeatedly tensioned; the two shielding plates are arranged, so that the wound can be conveniently shielded and cleaned, the back of the patient can be conveniently cleaned, the safety of wound recovery is ensured, and the use comfort of the patient is also improved.

The utility model discloses a kind of postoperative wound nursing devices of heart, belong to medical instrument field, including the clamping mechanism of symmetrical setting in the both sides of sickbed, the upper end of clamping mechanism is inserted with supporting mechanism, and a plurality of quilt clamping mechanisms are slidably arranged on supporting mechanism;Quilt clamping mechanism includes adjustable clamp assembly, and adjustable clamp assembly is slidably arranged on supporting mechanism, and the top of adjustable clamp assembly is provided with connecting ring, and the clamps for clamping quilt cover are provided on connecting ring.The utility model postoperative wound nursing device of heart by reducing the oppression of quilt to chest, keeping wound dry and ventilative, avoiding rubbing or pulling wound, facilitating auxiliary medical staff to disinfect and change dressing to wound, indirectly promote postoperative recovery.

The present application relates to the technical field of medical physiological data processing, in particular to a kind of cardiac surgery ICU prognosis support system and method assisted by electronic medical record.The method determines category representative point after initial classification based on physiological data, i.e., the number of categories to be classified is determined using the relatively rough results obtained by initial classification.Furthermore, the initial postoperative abnormality difference between patient sample points and category representative points is corrected based on the initial classification results, and the final classification results of each sample point are determined using the corrected postoperative abnormality difference.The present application can make the corrected postoperative abnormality difference obtained finally more accurately represent the distance between sample points and category representative points, and then determine accurate classification results, which is convenient for medical staff to provide postoperative prognosis support for patients.

The invention relates to the technical field of medical instruments, in particular to a special cardiac surgery head frame with a multi-body-position fixing structure, which comprises a mounting frame, a rotating rod is rotatably connected to the inner wall of the mounting frame, two round tubes are rotatably connected to the outer wall of the rotating rod, and a first fixing block and a second fixing block are fixedly connected to the outer walls of the round tubes respectively. Electromagnets are fixedly connected to the positions, corresponding to the first fixing block and the second fixing block, of the inner wall of the mounting frame, and through magnetic attraction control and arc-shaped limiting block design, switching of three modes of synchronous rotation of the head and the body, independent rotation of the head and independent rotation of the body is achieved; when the head is placed, a conical linkage structure is triggered by means of gravity, a supplementary air bag is extruded to supply air to a fixed air bag, placing, namely clamping and air bag attaching to the head are achieved, the risk of pressure sores is reduced, a fourth spring can drive the air bag to automatically return air and reset, manual operation is not needed, and operation is convenient. And the operation interference during the operation is reduced.

A headstock special for cardiac surgery relates to the technical field of surgical medical auxiliary equipment, and is characterized in that a seat, a mounting rod and a movable base are connected in a hinged manner, a limiting rod serving as a shaft body is mounted at the joint of the mounting rod and the movable base, a rectangular mounting groove is formed in the upper end of a headstock main body, and a threaded driving rod is transversely mounted in the mounting groove; the two ends of the threaded driving rod penetrate into the portions, inside the mounting grooves, of the movable base correspondingly, the inner sides of the mounting grooves are in threaded meshing connection with the outer side of the threaded driving rod, the threaded driving rod is connected with the inner side of the inner extending rod through a rotating shaft, and one end of the ejector rod is in a sharp wedge shape and extends to make contact with the clamping and locking piece. The stabilizer can be in contact with one side of the clamping and locking piece, the clamping and locking piece is driven to rotate outwards, and one side of the sawtooth part is in contact with the inner wall of the stabilizer bar, so that the stabilizer bar is positioned and fixed through friction force, the stabilizer bar is kept in the contour state of the head of a patient, and the fixing effect of the head can be guaranteed after the stabilizer clamps the head of the patient from the two sides.

The suture-free artificial blood vessel for the cardiac surgery comprises an artificial blood vessel body and bandaging devices located at the two ends of the artificial blood vessel body, each bandaging device comprises a connecting sleeve, a bandaging film and an operation line, the outer wall of one end of each connecting sleeve is smoothly arranged and is inserted into one end of the artificial blood vessel body, and the bandaging film is arranged on the outer wall of the other end of each connecting sleeve. An internal thread groove is formed in the outer wall of the other end of the connecting sleeve and inserted into a blood vessel in a human body, the binding film is wound around the overlapped position of the blood vessel in the human body and the connecting sleeve, and the operation line is wound and bound to the binding film 4 and corresponds to the internal thread groove, so that binding is tighter; the artificial blood vessel further comprises a supporting ring placed on the inner wall of the artificial blood vessel body, the supporting ring plays a role in increasing the hardness of the artificial blood vessel, and follow-up fixing operation is facilitated. The utility model relates to the technical field of biomedical treatment, and particularly provides a suture-free artificial blood vessel for the dirty surgery department.

A surgical annulus, a mechanical valve, and a surgical biovalve are disclosed. The three cardiac surgical valve instruments preferably adopt a high valve ring or short valve angle design. By means of the high-valve-ring surgical valve ring, left ventricular outflow tract obstruction can be avoided during a mitral valve intervention operation in the future. A mechanical valve and a surgical bioprosthetic valve move up a leaflet fixing structure and leaflets through a high annulus or short valve angle design to retain leaflets and subvalvular structures as much as possible in future mitral and tricuspid valve operations to facilitate post-operative heart function improvement.

The invention relates to a method for the diagnosis, prognosis, risk assessment and / or risk stratification of an adverse event in the health of a postsurgical patient, comprising providing at least one sample of a patient, who has undergone, is undergoing or will undergo surgery, wherein the at least one sample has been isolated from the patient presurgically, perioperative or postsurgically, determining a level of at least one biomarker selected from the group consisting of proADM, PCT and pro ET-1 or fragment(s) thereof in said at least one sample, wherein said level of the at least one biomarker or fragment(s) thereof correlates with the likelihood of said adverse event. In some embodiments the method is used for predicting or diagnosing an elevated or decreased likelihood of a postsurgical infection or blood infection. In some embodiments the method is used for predicting or diagnosing an elevated or decreased likelihood of a postsurgical adverse cardiovascular or cerebrovascular event, preferably a major adverse cardiovascular or cerebrovascular event (MACCE), major myocardial injury after non-cardiac surgery (MINS) or perioperative myocardial injury (PMI). In some embodiments the method additionally comprises therapy guidance, stratification and / or control in relation to said postsurgical adverse events, in particular an infection or an adverse cardiovascular or cerebrovascular event.