1297results about How to "Shorten operation time" patented technology

The invention provides an intelligent choledochoscope-assisted bile duct calculus minimally invasive calculus removal method and system, and relates to the technical field of minimally invasive calculus removal, and the method comprises the steps: collecting a video image in a bile duct through a choledochoscope, extracting bile duct calculus feature information through a deep learning target detection network, and carrying out the enhancement processing of the image to obtain bile duct cavity wall features; constructing a three-dimensional bile duct blood vessel tree model with focus marks; calculating a risk coefficient based on bile duct calculus characteristics, inputting the three-dimensional model, an anatomy knowledge base and expert experience data into a deep reinforcement learning network, and generating an optimal calculus taking path; the system establishes a real-time three-dimensional navigation map, and real-time path correction is realized through dynamic registration; a visual servo and force feedback control method is adopted, the choledochoscope robot is controlled to move to the target position along the corrected path, the grabbing parameters of the end effector are adjusted according to the morphological characteristics of the calculus, and accurate calculus taking is achieved.

The invention relates to the field of medicine, and discloses a thyroid nodule surgical operation planning and navigation system based on artificial intelligence, which comprises a multi-modal medical image acquisition module, an image preprocessing and enhancing module, an intelligent anatomical structure analysis module, an operation planning decision module and an intraoperative real-time navigation module, the multi-modal medical image acquisition module is used for integrating data of various image equipment such as ultrasonic equipment, CT equipment and MRI equipment, and space-time consistency of multi-modal images is ensured. According to the thyroid nodule surgical operation planning and navigation system based on artificial intelligence, the real-time calculation problem is solved, the system delay is reduced, which is crucial to real-time navigation in an operation, the real-time performance and the operation efficiency are improved, the operation time is shortened, and complications are reduced; by integrating the advantages of different images, the system can provide more comprehensive dissection views, help doctors to more accurately position nodules and important structures and avoid injury to nerves and blood vessels, so that the accuracy is improved, and the surgical risk is further reduced.

The invention discloses a separated modular anchor implantation system with a line, and relates to the technical field of medical apparatuses and instruments. The separated modular suture anchor implanting system comprises an inserter and a storage box, the inserter comprises an insertion rod, and an insertion part is arranged at the head of the insertion rod. An anchor and a suture line are stored in the storage box, an inlet and an outlet are formed in the two ends of the storage box respectively, and the insertion rod can be inserted into the storage box through the inlet, so that the insertion part is connected with the anchor in an inserted mode, the anchor is pushed out of the outlet, and the assembly of the inserter and the anchor is completed; after the anchor nail is implanted by the inserter, the insertion part and the anchor nail can be disconnected and the suture line can be directly withdrawn by moving the inserter in the direction opposite to the implanting direction without being removed by a doctor, so that independent storage of the anchor nail and the suture line is realized, and meanwhile, free assembly of the anchor nail and the inserter is realized; due to the modular structural design, the anchor can be selected and matched according to actual operation requirements, the inserter can be repeatedly used, waste of medical resources is reduced, and environmental protection is facilitated.

The invention discloses a new energy vehicle power battery thermal runaway early warning method and system based on big data, and belongs to the technical field of new energy vehicle battery monitoring, and the method comprises the steps: obtaining the voltage continuous time sequence data of each single battery in a battery pack, and forming a voltage matrix; obtaining a voltage data set A through a sliding window principle; if the column voltage data value of the voltage data set A is unique, adding the same periodic noise to obtain a voltage data set B; measuring-based geometric probability distribution statistics and information entropy calculation are carried out on each column of voltage data in the voltage data set A or the voltage data set B, or measuring-based geometric probability distribution statistics and frequency-based probability distribution statistics are carried out, and weighted mutual entropy calculation is carried out; abnormal value identification and positioning are carried out on information entropy or mutual entropy based on a local distance anomaly detection method in combination with a threshold value method, so that the battery fault diagnosis and thermal runaway prediction effect is not affected by the number of calculation windows and geometric probability partitions.

The invention belongs to the field of mass spectrum imaging, and particularly provides an image segmentation method for a mass spectrum imaging image of an ESI source, and the method comprises the steps: (S1) dividing the mass spectrum imaging image into a plurality of mass spectrum imaging channels according to a mass-to-charge ratio; (S2) selecting a mass spectrum imaging channel where target ions are located, and preprocessing each pixel; (S3) carrying out preliminary segmentation on the spectrogram data; (S4) performing interval division on the mass spectrum data of the channel where the target ions of each pixel are located, calculating the lower area of each interval, selecting the central mass-to-charge ratio of each interval as the abscissa of the intensity value of each interval, and setting the intensity value of the interval with the ratio of the central mass-to-charge ratio to the highest intensity value lower than a set value as 0; (S5) analyzing, training and optimizing the transformed mass spectrum data; and (S6) the optimal combination model obtained in the step (S5) is used for classification of other pixel points of the mass spectrum imaging image, and an image segmentation result is obtained. The method has the advantages of accurate segmentation and the like, and is applied to mass spectrum imaging of the ESI source.

The invention relates to the technical field of anorectal operation suturing, in particular to an anorectal operation suturing effect evaluation method and system based on image recognition, which can improve the objectivity and accuracy of evaluation and realize real-time feedback and immediate adjustment. The method comprises the following steps: acquiring treatment scheme data of an anorectal operation, and extracting a suture feature influence parameter set from the treatment scheme data; the suturing feature influence parameter set comprises a suturing tissue structure, a suturing wound shape, a suturing wound width and a suturing wound length; inputting the stitching feature influence parameter set into a pre-trained standard stitching feature contrast model to generate a standard stitching feature set; the standard suture feature set comprises a standard suture needle density, a standard suture edge distance and a standard suture needle distance; acquiring a surgical suturing image in real time, and segmenting and extracting suturing part sub-images from the surgical suturing image; and inputting the suturing part sub-image into a pre-constructed suturing feature image recognition model.

The invention provides a pulse assembly, a suction valve, an endoscope and an implantation system, and relates to the field of medical instruments.The pulse assembly comprises a communication part provided with a channel, the channel is provided with an inlet and an outlet, and the inlet is used for being communicated with an instrument tube and / or a sheath tube; the shielding piece is arranged on the communicating part and located between the inlet and the outlet, and the shielding piece has a first state and a second state; the driving part is used for driving the shielding part to be switched between the first state and the second state; when the shielding piece is in the first state, the channel is completely opened; and when the shielding piece is in the second state, at least part of the channel is blocked. Compared with the prior art, the calculus flushing device has the advantages that the flowing speed of flushing fluid can be adjusted by intermittently changing the flowing area of the flushing fluid, and then the calculus flushing effect is effectively improved.

The invention relates to a zero-exchange balloon catheter stent system with a far-end protective umbrella and a using method, and belongs to the technical field of medical instruments. Comprising a balloon catheter and a stent system which are connected, the stent system comprises a conveying system and a stent; the conveying system comprises a control core wire; the center of the control core wire is provided with a connecting binding wire fixing hole and a connecting binding wire releasing point; the support comprises a near-end support, a connecting area and a far-end protective umbrella, and the connecting area is located between the near-end support and the far-end protective umbrella; the connecting area comprises a connecting binding wire, a protective umbrella wire binding ring and a protective umbrella connecting wire. The far-end protection umbrella and the near-end support are designed to be a separable combination, instrument exchange is not needed in the operation process, the operation process is simplified, the operation difficulty is reduced, the operation time is shortened, and therefore the risk of complications such as ischemic stroke is reduced.

The utility model relates to the technical field of medical instruments, and discloses a lighting drag hook which comprises a handle, a drag hook opening piece and a built-in light source device. A first channel is arranged in the handle; one end of the drag hook distraction sheet is connected with the handle, and the other end of the drag hook distraction sheet is a hook body; a second channel is arranged at one end, connected with the handle, of the drag hook distraction sheet, and the second channel is communicated with the first channel; the built-in light source device comprises a battery assembly and a lamp panel, the lamp panel is arranged on the side, away from the handle, of the retractor opening piece, and the battery assembly is arranged in the first channel and electrically connected with the lamp panel. The illumination device is simple in structure and convenient to use, illumination is provided for an operation part while the operation part is fully exposed, the deep operation view can be clearly displayed, operation safety is improved, operation time is shortened, operation efficiency is improved, and normal operation is guaranteed.

The invention discloses a multi-story building mapping method and system based on laser radar and IMU coupling and a medium, and the method comprises the steps: scanning and collecting environment information through a laser radar sensor to obtain point cloud data, carrying out the motion distortion removal of a laser radar point cloud through IMU input data, and carrying out the down-sampling of the point cloud data through a grid down-sampling algorithm; carrying out ground point cloud removal on the single-frame point cloud based on a Markov random field; constructing an optimized pose map based on a multi-plane ground constraint pose constraint algorithm; calculating to obtain a fusion error value by using an error fusion algorithm based on Kalman filtering, and compensating motion estimation; registering and fusing the point cloud data of the current key frame and the global map obtained by accumulation at the preorder moment through a point iteration ICP algorithm; according to the mapping method, the phenomena of mapping drifting and scene degradation are effectively restrained for corridor scenes, upstairs and downstairs and use scenes of multiple similar floors with similar indoor mapping.

The invention relates to a negative pressure suction ureter guiding sheath which comprises a sheath tube, a bending adjusting handle and a multifunctional connector which are connected in sequence. The sheathing canal is communicated with the multifunctional joint through the bending adjusting handle; the bending adjusting handle comprises an upper shell, a lower shell, a traction scroll and a locking assembly. The upper shell and the lower shell are connected to form a handle body, the traction wire disc is rotationally installed in a cavity defined by the lower shell and the upper shell, the traction wire disc is connected with the sheathing canal through a traction wire, and the traction wire disc rotates to drive the traction wire to pull the head end of the sheathing canal to be bent. The locking assembly is installed on the traction scroll and can be switched between a locking state and an unlocking state, and when the locking assembly is in the locking state, the traction scroll and the upper shell are relatively fixed; when the locking assembly is in the unlocking state, the traction wire disc can rotate relative to the upper shell, and the operation is convenient and fast, the handle does not need to be continuously operated, the operation burden of a doctor is effectively relieved, and the operation effect is improved.

The invention discloses a brain-computer interface implantation accuracy judgment method based on combination of images and electroencephalogram signals, and belongs to the field of biological cross scientific research. By combining an image processing technology and fine electroencephalogram signal analysis, the accuracy of electrode implantation is evaluated from two independent and complementary angles. Compared with a traditional method depending on postoperative histological analysis, the method has the advantages that multiple real-time feedback mechanisms are provided, and the accuracy and reliability of electrode positioning in an operation are remarkably improved. The technical innovation not only shortens the operation time and reduces the operation risk, but also improves the success rate of the whole operation process. Through real-time image and signal analysis, an operation team can adjust an operation strategy in real time, an electrode implantation path is optimized, and it is ensured that an electrode accurately reaches a target brain area. Besides, the delay and uncertainty of relying on postoperative slice analysis are avoided, so that the correctness of the electrode position can be confirmed during the operation, and the overall safety and effect of the brain-computer interface operation are enhanced.

The invention discloses a robot particle implantation actuator capable of rapidly replacing needles, and belongs to the field of medical robots. The problems that an existing particle implantation actuator is inconvenient in needle replacement and mostly does not have a puncture function, and the operation efficiency is affected are solved. The device comprises a shell, an outer needle assembly, an inner needle assembly, a quick release flange, a sensor assembly, a magnetic positioning block and an inner and outer needle assembly transmission mechanism, the top of the inner and outer needle assembly transmission mechanism is provided with a quick-release flange used for being in butt joint with a mechanical arm. The inner and outer needle assembly transmission mechanism is used for the movement of the outer needle assembly and the inner needle assembly, puncturing a cannula outer needle embedded with a puncture inner needle into a human body, replacing an implantation inner needle, sending the implantation inner needle in the inner needle assembly into the particle bin, pushing radioactive particles in the particle bin to the cannula outer needle, and pushing the radioactive particles out of the cannula outer needle; the inner-outer needle assembly is arranged at the lower end of the machine shell and fixedly connected to the bottom of the inner-outer needle assembly transmission mechanism through a magnetic positioning block. The device is mainly used for percutaneous puncture and implantation of radioactive particles.

The utility model discloses a pulmonary alveolar lavage device which comprises a suction catheter and an ultrasonic probe, wherein the suction catheter is used for entering a bronchus through an insertion tube of an endoscope for pulmonary alveolar lavage, and the ultrasonic probe is used for entering the bronchus through the suction catheter. The suction catheter comprises a non-transparent flexible section located at the far end and a transparent section communicated with the near end of the flexible section, and the hardness of the transparent section is larger than that of the flexible section. By using the alveolar lavage device, the shape of the bronchus into which the suction catheter enters and the runner condition of the suction catheter can be observed in real time, and the suction catheter can be prevented from being blocked.

The invention discloses a voiceprint-based 10 kV circuit breaker mechanical fault detection method. Comprising the following steps: S1, building a MobileNetYOLOv4 neural network model; s2, acquiring voiceprints through a high-sensitivity sensor; s3, performing convolution operation on a convolution kernel of edge side identification early warning; s4, circuit breaker fault identification; s5, carrying out improved S transformation on the signal; according to the invention, task allocation is dynamically calculated by a resource allocation module embedded in a cloud platform, a lightweight model is constructed, the model operation speed is accelerated, and a real-time target identification and classification system is constructed; the Moblienet neural network structure reduces the running memory of a neural network model and accelerates the running speed of the neural network model, and in order to improve the target recognition speed and solidify the model to an edge device, the MobileNet network structure applies a deep separable convolution technology, so that the target recognition efficiency is improved. The standard convolution of the convolutional neural network is divided into two steps of deep convolution and point-by-point convolution in the calculation process, so that the calculation amount of the network is greatly reduced.

The present invention relates to the technical field of intravascular self-expanding stent delivery, and discloses a rapid exchange balloon stent installation device and a stent installation method. The rapid exchange balloon stent installation device is used to install the self-expanding stent in the diseased part of the blood vessel, and includes a balloon dilatation catheter, a micro guidewire and a stent release tube. The balloon dilatation catheter is provided with a first through hole along the length direction, and a wire threading hole is provided on the side wall of the first through hole; the micro guidewire can enter the first through hole through the distal end of the balloon dilatation catheter and pass through the wire threading hole; the distal end of the balloon dilatation catheter is provided with an expansion part, and the self-expanding stent can be slidably installed in the first through hole, and the self-expanding stent is located at the distal end of the balloon dilatation catheter; the stent release tube is slidably arranged in the first through hole of the balloon dilatation catheter, and the distal end of the stent release tube abuts against the self-expanding stent. By installing the balloon dilatation catheter once, the delivery and installation of the self-expanding stent can be realized, thereby improving the success rate of the operation.

The utility model relates to a medical device. The medical device includes an occlusion mechanism and a delivery mechanism. The plugging mechanism comprises a plugging assembly and a locking assembly, the plugging assembly can be compressed and extended in the axial direction, the locking assembly comprises a first connecting assembly and a second connecting assembly, and the near end of the first connecting assembly and the second connecting assembly can be locked so that the plugging assembly can be kept compressed in the axial direction; the conveying mechanism comprises a first buckling piece and a first driving piece, and the first driving piece movably penetrates through the first buckling piece; the first buckling piece and the second connecting assembly are detachably connected in a buckling mode, and the first driving piece and the first connecting assembly are detachably connected; the first driving piece is used for driving the first connecting assembly to be locked to the second connecting assembly; the first driving piece is further used for enabling the first buckling piece and the second connecting assembly to keep buckled connection or separation. The medical device is used for blocking a crack in a vascular membrane, and operation is convenient when the blocking mechanism is released.

The invention discloses a surgical robot for orthopedic surgery, and relates to the technical field of medical equipment. The device comprises a base, a supporting column is fixedly connected to the top of the base, a transverse frame is installed on the top of the supporting column, a supporting seat is fixedly connected to the front side of the transverse frame, mechanical arm bodies are installed on the two sides of the supporting seat, and drilling machines are arranged at the other ends of the mechanical arm bodies; a mounting assembly is arranged at the bottom of the drilling machine and comprises a mounting shell, and the mounting shell is fixedly connected to the output end of the drilling machine. Through the arrangement of the tool changing assembly, when the drill bits are separated from the mounting column, the falling drill bits can be collected through the collecting box, the position of the rotating disc is adjusted, the multiple sets of drill bits of different specifications are arranged at the top of the rotating disc, and when the drill bits are adjusted to the bottom of the mounting column, the drill bits can be pushed upwards to be inserted into the mounting column; automatic drill bit replacement and rapid installation are completed, and a large amount of operation time can be saved.

The invention discloses an intelligent and digital liver blood flow control device which comprises a central operation table, a connecting line is fixedly installed at the top of the central operation table, a controller is fixedly connected to the end, away from the central operation table, of the connecting line, and a blocking rope is fixedly installed at the top of the controller; an adjusting mechanism is arranged in the controller, one end of the blocking rope is rotationally connected with a connecting screw head, the adjusting mechanism is connected with the blocking rope through the connecting screw head, and the controller is electrically connected with the central operation table; in the process of performing an operation on a liver cancer patient, a doctor usually only performs the operation in a blocking state, the blocking requirements of the operation on the blood vessel meet 10-20 min of blocking and 5 min of opening, according to the operation conditions, blood flow blocking is performed on the blood vessel through a traditional method, a ureter, a glove edge and other instruments are used, the first porta hepatis blood vessel is wound, then tightened and blocked, and the first porta hepatis blood vessel is blocked. And after a period of time, the blocked ureter or glove edge is loosened.

A pair of needle holding forceps for surgical suture comprises a left forceps body and a right forceps body which are provided with forceps beaks and forceps handles, the left forceps body and the right forceps body are hinged to form the needle holding forceps capable of being opened or closed, the opposite faces of the forceps beaks of the left forceps body and the right forceps body are respectively provided with an open through groove, groove openings of the two open through grooves are opposite, and the distance between the open through grooves and the front ends of the forceps beaks is 6-8 mm. The distance is the clamping surface of the forceps beak, blades used for cutting a suture line are installed in the open through grooves respectively, the cutting edge parts of the blades are opposite and extend in the longitudinal direction of the forceps beak, and the cutting edge part of at least one blade protrudes out of the clamping surface of the forceps beak, so that the two blades form scissors used for cutting off the suture line, and the needle forceps integrating sewing and cutting are formed.

The invention discloses a magnetic catheter, an intervention device and a catheter intervention method.The magnetic catheter comprises an inner-layer tube and an outer-layer tube which are arranged in a nested mode to form the inner diameter and the outer diameter of the magnetic catheter, a middle layer is fixedly embedded between the inner-layer tube and the outer-layer tube, and the middle layer is an elastic layer and can be bent in the circumferential direction; the thrust effect can be transmitted and delivered along the axial direction; the magnetic part and the developing part are both arranged at the front end of the magnetic catheter in the advancing direction, the magnetic part has single polarity, and the developing part is used for improving the detectability of the magnetic catheter under rays. The inner-layer tube, the outer-layer tube and the middle-layer structure are combined to form a main body structure of the magnetic catheter, so that the catheter has supporting performance, pushing performance and bending adjusting performance, meanwhile, through the magnetic part and the developing part, the end of the catheter can be clearly observed, a non-contact magnetic field force turning effect is provided for the catheter, and the magnetic catheter can be conveniently used. The compatibility of the magnetic catheter is improved, the operation convenience is improved, and the operation difficulty of the operation is reduced.

The visual Eustachian tube examination and treatment device with the suction function comprises an Eustachian tube endoscope, a sheath tube indexing and transposition locking assembly and a balloon assembly, wherein the balloon assembly is arranged between the sheath tube indexing and transposition locking assembly and the Eustachian tube endoscope. The sealing joint assembly of the balloon assembly is installed in the sheath tube indexing transposition locking assembly, the assembly is located outside the human body in the treatment process, the size of the sealing joint assembly can be properly enlarged according to the technological conditions, and the manufacturing difficulty of the balloon assembly is reduced; by changing the length of the sealing joint, the combination of the balloons with different lengths and the same endoscope is realized, and the endoscope is used for treating different patients; according to different relative positions of the treatment ear and the doctor caused by the lying position of the patient, the angle of the sheathing canal and the endoscope is adjusted; the balloon hollow tube is located in the sheath tube and forms a suction channel with the sheath tube, the end of the sheath tube is a suction inlet, and a suction tube externally connected with a negative pressure suction device is arranged on a sealing connector assembly in the balloon assembly, so that the nasal cavity aspirator has the suction function of cleaning hydrops in the nasal cavity.

The utility model relates to the technical field of mammary gland puncture, and discloses a positioning device for mammary gland puncture, which comprises a fixing structure arranged above a device shell, a connecting column is inserted into the top end of the inner wall of the device shell in a sliding manner, a spring is fixedly connected to the bottom end of the surface of the device shell, and the other end of the spring is fixedly connected with a cover plate. The bottom end of the cover plate is slidably sleeved with a containing bin through threads, the bottom end of the device shell communicates with a guide needle, the bottom end of a connecting column is fixedly connected with a moving block, the bottom end of the inner wall of the device shell is fixedly connected with a round rod, and the bottom end of a fixing structure is fixedly connected with a puncture needle. Through the cooperative arrangement of the connecting column, the guide needle, the moving block and the reset spring, a doctor can be helped to more accurately determine the target position in the mammary gland, the puncture needle can accurately enter an area needing to be examined or sampled, personal errors are reduced, and the puncture accuracy is improved.

The shock wave mesh basket electrode catheter comprises an inner tube and an outer tube, the inner tube is arranged in the outer tube and extends out of the far end of the outer tube, the far end of the inner tube is provided with a tip, the near end of the outer tube is connected with a handle, the handle is connected with a plug through a cable, and the plug is used for being connected with an external shock wave device. A mesh basket part is arranged on the inner tube, a balloon and a shock wave generator are arranged on the mesh basket part, and the mesh basket part has self-expansion performance so that a cage-shaped structure can be formed after expansion. According to the embodiment, the risks that the artificial valve is difficult to position and fix in the operation process, the artificial valve is not suitable to release and difficult to remove and the like can be effectively avoided, the operation time is shortened, and the operation operation and prognosis effects are greatly improved.

The embodiment of the invention discloses a catheter supporting device and system, the catheter supporting device comprises a main body part, the main body part comprises a first end and a second end which are oppositely arranged, the main body part can stretch and retract in the direction from the first end to the second end, the main body part is internally provided with a supporting channel, and the supporting channel extends in the direction from the first end to the second end; the first quick connector is connected with the first end and communicates with the supporting channel; the second quick connector is connected with the second end and communicated with the supporting channel. According to the technical scheme, effective and good supporting can be provided for the catheter (medical endoscope) through the supporting device, the supporting device can stretch out and draw back along with the catheter in the pushing and withdrawing process of the catheter, the catheter is effectively prevented from being bent, a user can operate the catheter more easily, the posture of the catheter is more convenient to adjust, and the user experience is improved. More operation freedom degrees and adaptive operation requirements are met, wounds of a patient can be effectively reduced, and meanwhile the operation time is shortened.

The invention discloses a heterogeneous commercial motorcade multi-objective optimization control method and device under a time lag condition. The method comprises the following steps: S1, establishing a dynamic model and a queue system model of each vehicle in a commercial motorcade; s2, designing a queue controller based on a distributed model predictive control method, establishing a cost function and a constraint condition, defining a sub-predictive optimization problem for each vehicle, designing a vehicle following error, economical efficiency and comfort cost function, reducing vehicle following errors in heterogeneous vehicle queue driving, reducing energy consumption, improving comfort and improving queue comprehensive performance; s3, a buffer and a delay compensator are integrated on the controller, a delay compensation link is added to a control system, the control effect of the heterogeneous motorcade under the delay condition is improved, and stable control over the heterogeneous motorcade under the non-ideal communication condition is achieved; and S4, the target function is solved by adopting simulated annealing and a particle swarm optimization algorithm, the problem of nonlinear discontinuous target values in the target function is solved according to a probability method, the operation time is shortened, and the solving efficiency is improved.

The invention provides a pulse assembly, a suction valve, an endoscope and an implantation system, and relates to the field of medical instruments.The pulse assembly comprises a communication part provided with a channel, the channel is provided with an inlet, a first outlet and a second outlet, and the inlet is used for being communicated with an instrument tube and / or a sheath tube; the shielding piece is movably arranged on the communicating part, and the shielding piece can intermittently block the first outlet under the movable condition; and the driving part is used for driving the shielding part to move, so that the first outlet is intermittently blocked. Compared with the prior art, the device has the advantages that pulse control over the flow speed of washing liquid is achieved, the stone removing efficiency in the operation process is remarkably improved, meanwhile, different operation requirements can be flexibly met, the operation time is effectively shortened finally, and discomfort and risks of a patient are reduced.

The invention discloses a novel multi-adaptive guide sheath and application thereof. The novel multi-adaptive guide sheath comprises a guide sheath tube body, a guide sheath tube tail end joint connected with the guide sheath tube body, and an optional guide sheath tail end connector which is quickly assembled and separated from the guide sheath tube tail end joint through a quick conversion joint; the quick conversion connector comprises a first valve body connected with a connector at the tail end of the guide sheath tube and a second valve body connected with a connector at the tail end of the optional guide sheath. A first valve element moving front and back in the axial direction of the first valve body is arranged in a cavity in the rear portion of the first valve body, and a second valve element moving front and back in the axial direction of the second valve body is arranged in the second valve body. When the second valve body is inserted into the cavity in the front of the first valve body and then locked by the locking mechanism, the first valve element and the second valve element are connected, and hollow channels in the first valve element and the second valve element are communicated. The guide sheath tube is changed into a replaceable accessory, and the tail end connector can be quickly connected with various devices, so that the adaptability and the use efficiency of the guide sheath are improved, and the operation efficiency and the safety are improved.

The invention discloses a method for preparing a personalized biphasic condylar scaffold, which comprises the following steps: collecting data to separate a mandibular digital model; selecting data on the opposite side of a lesion area in the mandibular digital model, and mirror-symmetric mapping the data to the lesion area to obtain a condylar head and neck prosthesis model; designing and printing a bone phase scaffold according to the condylar tissue structure morphology; preparing a cartilage phase scaffold; spraying a dense layer on the surface of the bone phase scaffold head, connecting the cartilage phase scaffold with the dense layer by a "dissolution-adhesion" process to form a dense layer bone-cartilage composite scaffold, thereby constructing a condylar biphasic composite scaffold; and designing a retention handle on the condylar biphasic composite scaffold to construct a personalized biphasic bionic condylar scaffold, which not only solves the problem that autologous bone transplantation for temporomandibular joint reconstruction cannot restore the condylar morphology and there are complications in the bone donor area, but also solves the problem that the mechanical properties of the materials and the degradation cycle of the existing prosthesis do not meet clinical needs.

The invention discloses an automatic pre-operation frame calling system based on artificial intelligence, which relates to the technical field of medical instruments and comprises an image acquisition module, an image processing module, a bleeding detection module, a frame calling logic module and a user interface module, the image acquisition module is used for acquiring operation image data of a patient in real time in the endoscopic operation process, real-time image signals in an operation scene are acquired and transmitted through a high-definition camera or related medical imaging equipment, and the image acquisition module is connected with the image processing module. A clear operation view can be obtained without manual operation of a doctor, the burden of the doctor is reduced, the operation process is simplified, and the operation accuracy is improved.