35 results about "Intraoperative procedures" patented technology

The invention belongs to the technical field of medical image three-dimensional reconstruction, in particular to a brain tumor medical image three-dimensional reconstruction display interaction methodand a system, comprising the following steps: acquiring a plurality of medical diacom images, preprocessing each medical diacom image to obtain a preprocessed image; According to the pre-processed images, the three-dimensional model of brain can be obtained by three-dimensional modeling. The brain tumor information was obtained by analyzing the three-dimensional brain model, and the brain tumor resection scheme was recommended according to the brain tumor information. According to the operation instruction, the tumor resection was simulated on the three-dimensional brain model, and the wholeoperation process was simulated by the doctor through the naked eye 3D display, and the operation was reminded according to the doctor's intraoperative operation. The invention constructs a three-dimensional model of the brain through the medical image of the brain tumor and simulates the operation, the human-computer interaction process is displayed through the naked eye 3D display, the sense ofvirtual reality is enhanced, and the analysis of the brain tumor is a scheme for the doctor to remove the tumor, thereby improving the diagnosis efficiency of the doctor.

The invention discloses a construction method of an individualized 3D printing acetabular wall defect repairing and reconstructing system. The construction method of the individualized 3D printing acetabular wall defect repairing and reconstructing system comprises the following steps: acquiring and processing acetabular wall defect image data; performing anatomical analysis on a three-dimensionalreconstruction model and performing adaptive trimming on a lesion side defect acetabulum; reconstructing a lesion side acetabulum model based on uninjured side acetabulum mirror image anatomical features; performing reverse engineering to obtain a three-dimensional model of a lesion side acetabular wall defect repairing and reconstructing system; and acquiring and printing an acetabular wall defect repairing and reconstructing three-dimensional model. For cases with hip joint dysplasia or cases requiring revision and acetabular wall defects, individualized prosthesis customization can be implemented, an artificial acetabulum capable of meeting the joint function of a patient is reconstructed, the application range of THA is expanded, the success rate is increased, the postoperative satisfaction rate is increased, postoperative complications are reduced, and besides, the operation in an acetabular wall defect repairing and reconstructing surgery can be simplified and normalized.

The invention relates to a self-closing air bag expander for a back abdominal cavity. The self-closing air bag expander comprises a vent pipe and an expansion air bag and further comprises a self-closing device composed of a one-way air inlet valve, a fixed shaft, a pull rod and a pull thread. The one-way air inlet valve is arranged in the vent pipe, the fixed shaft is arranged between the one-way air inlet valve and the expansion air bag, the pull rod penetrates the fixed shaft to be arranged and can rotate around the fixed shaft, one end of the pull rod corresponding to the expansion air bag is connected with the pull thread, a blocking head is arranged at the other end of the pull rod, the pull thread is an elastic pull thread, and the other end of the pull thread is connected onto the inner wall of the expansion air bag. The self-closing air bag expander for the back abdominal cavity is simple to operate. Only one operator is required in the operation process to finish the whole expansion work. The air bag expander has a function of self closing, can be closed by itself when the air bag is aerated to the required extent, greatly facilitates in-operation operation of clinical doctors, reduces operation pressure of the doctors and improves operation effect.

The invention discloses a surgical operation skill rating method based on interpretable artificial intelligence, which relates to the field of artificial intelligence, and mainly comprises the following steps: acquiring a rectification video of an operation, and extracting a feature image set under each channel of the rectification video through an expansion three-dimensional convolution network; performing equalization processing on each feature map in a time dimension through a global average pooling layer, and obtaining a time sequence average feature; the classification score of each feature region in the rectified video is solved according to the time sequence mean value feature; and associating the classification score with the corresponding feature region in the rectified video to obtain a category activation map, and obtaining a saliency map with the operation trajectory and the rating of each trajectory segment according to the category activation map. According to the method, the popularity saliency map with the operation track and the corresponding score is obtained, so that a doctor can clearly know defects and deficiencies existing in the operation of the doctor in the operation, and targeted training is performed.

The problem of positioning one or more nerve ends inside a sheathing implant is solved by the use of a pulley and cinching systems that pull a nerve end into an implant and that can adjust the diameter of an implant to conform the implant to the diameter of the nerve, respectively. The pulley system utilizes a suture that traverses the wall of an implant leaving one end outside the implant wall and another end that can be attached to a nerve. Pulling the suture end outside the wall pulls the nerve attached to the other end of the suture into the bore of the implant. A cinching system utilizes specially arranged sutures within the wall of an implant to tighten or cinch up the wall after a nerve is placed therein, so as to conform at least part of the implant to the diameter of the nerve. Methods are also disclosed by which such pulley systems can be formed during an intraoperative procedure.

The invention provides a ballistic ureteroscope integrated lithotripsy device for a urinary surgery; an operation channel and an optical fiber channel are formed in an operation ureteroscope tube; a cold light source interface, a video camera interface and a water inlet are formed in a connecting base; a handle and a trigger are arranged on the lower portion of the connecting base; an adjusting cavity and a fixing cavity are formed in the connecting base; a plum-blossom-shaped wheel is arranged in the adjusting cavity; a first ratchet wheel and a second ratchet wheel are arranged on one side of the surface of the plum-blossom-shaped wheel; a first clamping jaw and a second clamping jaw are arranged on the trigger; the first clamping jaw is matched with the first ratchet wheel; the second clamping jaw is matched with the second ratchet wheel; and one wheel on the plum-blossom-shaped wheel is movably connected with a connecting rod, and the other end of the connecting rod is movably connected with a fixing sleeve. The handle can be grasped by one hand to fix the inserting position and angle, meanwhile, the length of a lithotripsy rod is controlled through the trigger, one-hand operation can be achieved conveniently during an operation, other operations can be carried out by the other hand, disassembly is carried out at any time according to intraoperative operations, and wide application and popularization value is achieved in the field of treatment of urinary calculi.

The invention discloses a combined anatomical titanium mesh fusion cage, relates to the technical field of medical instruments, and solves the problems that most of common traditional titanium meshesare temporarily trimmed and formed in an operation, so that the end surfaces of the trimmed titanium meshes are sharp, local stress concentration occurs easily, the implanted titanium meshes is liableto directly puncture a connected end plate, and the surface of the end plate is sunken. According to the key points of the technical scheme, the fusion cage comprises a titanium cage main body used for being filled with autologous healthy sclerotin; a fusion through hole is formed in the circumferential side wall of the titanium cage main body; a reinforcing connecting ring is inserted into the end part of the titanium cage main body in the axial direction of the titanium cage main body; the end surface, deviating from the titanium cage main body, of the reinforcing connecting ring inclines to the cross section of the titanium cage main body; and anti-skid teeth are evenly distributed on the end surface, deviating from the titanium cage main body, of the reinforcing connecting ring. The fusion cage has the characteristics of being simple to operate and convenient to use in the operation, and the titanium cage main body does not need to be cut in the operation, so that operation time is greatly shortened and pain of a patient is relieved.

The invention provides an X-ray developing molecule, a drug-loaded embolism microsphere and a preparation method of the drug-loaded embolism microsphere, and belongs to the technical field of medical materials. The preparation method comprises steps: firstly, preparing X-ray developing molecules with double bonds, wherein the molecules are obtained by reacting iodobenzene derivatives containing amino groups or hydroxyl groups with acrylic anhydride; further, preparing a polyvinyl alcohol drug-loaded embolism microsphere intermediate; and finally, preparing the drug-loaded embolism microspheres capable of realizing X-ray development. The drug-loaded embolism microsphere capable of being developed by the X-ray prepared by the invention has both X-ray developing property and drug loading property, the preparation method is simple, a doctor can directly observe the part where an embolism material reaches under X-ray fluoroscopy, the intraoperative operation is convenient, the embolism degree is easy to master, and various complications in the intravascular treatment process are effectively avoided.

The invention discloses a tibia whole-segment anatomical locking plate type external fixing frame which is an integral steel plate. The outer fixing frame is similar to the inner side of the tibia far end and the inner side of the tibia plateau in anatomical form, the middle section of the plate-type structure is consistent with the front inner side of the tibia shaft in shape, and multi-angle adjustable locking nail holes are formed in the two ends. The device accords with medical AO and BO theories, can be used by domestic adults with the height of 160-175cm, can comprehensively consider various types of fractures of tibia, can replace internal fixation, avoids secondary operation of taking out internal fixation, and prevents complications of internal fixation of tibia fractures. And the problem troubled by people who are not suitable for internal fixation of patients can also be solved. Meanwhile, the defects that a traditional single-arm outer frame is tedious, heavy, poor in stability and incapable of effectively fixing fractures at the far end and the near end of the tibia are overcome, time and labor are saved during operation, social benefits are economical and practical, pain of a patient lying for a long time after an operation is reduced, and the rehabilitation time of the patient is shortened.

The invention discloses a virtual endoscope display method based on a VR/AR combined digital lung technology. The method comprises the following specific steps of: (1) performing thin-layer CT scanning through AI and an image omics technology to obtain CT data; (2) performing segmentation calculation on tissues and organs of the chest and lung through the digital lung technology according to the obtained CT data to construct a lung and bronchus 3D model based on reality; and (3) transmitting the 3D model to an AR endoscope, realizing non-invasive, efficient and safe path planning and virtual roaming of a virtual bronchoscope through a holographic projection technology, or realizing remote real-time guidance and consultation through an Internet 5G technology by the 3D model, and projectingthe 3D model to a computer terminal to share intraoperative operation in real time. By applying the method, abnormal or existing nodules of lung and bronchus structures can be displayed, lesions can be further accurately positioned, preoperative path planning can be realized, certain intraoperative related data parameters can be measured, and assistance can be provided for diagnosis and treatmentof diseases.

The invention discloses a hollow spicule and a matched tool thereof, and belongs to the technical field of medical instruments. The hollow spicule comprises a hollow spicule body and an external fixing support, wherein the hollow spicule body is of a hollow columnar structure, the bottom of the hollow spicule body is provided with bone threads and a plurality of side holes for communicating the interior of the hollow spicule body with the outside, and the hollow spicule body is arranged on the external fixing support to be used for fracture fixation. The hollow spicule is of a hollow columnarstructure, positioning can be conducted through guiding of a guide needle, and intraoperative operation is facilitated; and meanwhile, medicine can pass through the hollow spicule body, the bottom ofthe hollow spicule body is provided with the bone threads and the side holes enabling the interior of the hollow spicule body to communicate with the exterior of the hollow spicule body, and the injected medicine flows out through the side holes to reach a fracture part, so that targeted treatment can be carried out on lesions.

The invention relates to a pair of bipolar electrocoagulation surgical forceps, which relates to the field of medical instruments, and comprises a forceps piece, forceps tips and a three-dimensional force sensing assembly, wherein the three-dimensional force sensing assembly is arranged between the forceps piece and the forceps tips; at least one fixing piece used for fixing the tweezers pieces and the three-dimensional force sensing assembly; and at least one connecting piece arranged between the three-dimensional force sensing assembly and the forceps tips and used for fixing and connecting the three-dimensional force sensing assembly and the forceps tips. According to the bipolar electrocoagulation surgical forceps, the interaction force between the forceps tips and the brain tissue can be measured, force feedback is provided for a surgical robot system, the damage of the bipolar coagulation surgical forceps to the brain tissue in the surgical process is reduced, and the interaction force between the bipolar coagulation surgical forceps and the tissue and the intraoperative operation experience of doctors are quantified.

The invention relates to a puncture stapler capable of arranging sutures in advance, and relates to the technical field of medical instruments. The puncture stapler capable of arranging sutures in advance comprises a puncture cannula device and a puncture device. The puncture cannula device comprises a shell cover, a connecting base, a cannula upper shell, a cannula lower shell, a sealing gasket upper pressing piece, a sealing gasket, a sealing gasket lower pressing piece, a rubber ring, a choke valve, a cannula, an air injection valve and a snap clip. The puncture device comprises a handle, a puncture shell cover, a baffle plate, a side wing locking block, a spring, a baffle block, a puncture tube, a push-pull rod, a guide connecting block, a side wing, a puncture cone, a wire pushing rod, a long pressure spring, a baffle ring, a fixed shaft, a puncture shell and a connecting pin. The puncture stapler can be used for laparoscopic abdominocentesis, and establishing channels for laparoscopy. According to the puncture stapler, a pre-knotting mode of sutures is provided, the sutures on the two sides of an incision can be pulled out of the cannula to be pre-knotted without affecting intraoperative procedures.

The invention discloses a marking pen for intraoperative operation. The marker pen comprises a first pen cylinder, a second pen cylinder, a first pen tip and a second pen tip, the tail end of the first pen cylinder is fixedly installed at the tail end of the second pen cylinder, the first pen tip is slidably installed in the first pen cylinder through a telescopic assembly, the second pen cylinderis fixedly installed in the second pen cylinder, a first pen cap sleeves the first pen tip, and a second pen cap sleeves the second pen tip. A liquid filling tank is arranged in the first pen cylinder, a liquid storage cavity is formed in the second pen cylinder, the first pen tip is used for intraoperative marking, and the second pen tip is used for intraoperative disinfection or removal of marks. The marker pen is provided with the retractable pen tip and the correction pen tip, and convenience is provided for surgical operations, so that intraoperative cross-infection can be avoided.

The invention provides a manual control operation device based on a vascular interventional operation training system, and belongs to the technical field of medical training equipment, and the manualcontrol operation device comprises a catheter, a guide shaft, a force/moment detection mechanism and a mechanism for realizing two-degree-of-freedom motion and force tactile feedback, the force/torquedetection mechanism is used for detecting an operating force applied to the axial direction of the guide shaft and detecting an operating torque applied to the circumferential direction of the guideshaft; the force/moment detection mechanism comprises a transmission block capable of coaxially rotating with the guide shaft, a first detection assembly used for detecting the operating force of thetransmission block in the axial direction and a second detection assembly used for detecting the operating moment of the transmission block in the circumferential direction, and the first detection assembly is located in the axial direction of the transmission block; the second detection assembly is located in the circumferential direction of the transmission block. The manual control operation device is used for accurately detecting the force/moment of an operator in a vascular intervention training operation, timely realizing movement and force tactile feedback, and providing a real trainingenvironment for the operator so as to improve the operation skill of the operator.

The invention discloses an endoscope double-row type blood vessel stitching instrument for thoracic surgery, which comprises a main handle, a cavity tube, a fixing shaft I, an auxiliary handle, a channel I, a push rod, a fixing shaft II, a pressing plate, a channel II, a sliding rod, a U-shaped clamping plate, a fixing plate and an avoiding hole. According to the invention, firstly, through the separation design of the vascular stenosis gap, separated blood vessel suture is conveniently carried out in the vascular stenosis gap area. the surgical operation convenience is improved, and the problems that a traditional closing instrument is large in width, inconvenient to operate and prone to causing blood vessel injury and bleeding are effectively solved; secondly, through the matching effect of the hook bin mechanism, preoperative filling is facilitated, the intraoperative operation time is shortened, in addition, the effects of rapidly suturing blood vessels and improving the operation convenience and stability of medical staff can be achieved; and a bleeding blood vessel is directly pressed for suturing after being clamped by the endoscope forceps type blood vessel suturing instrument, and the bleeding blood vessel does not need to be separated before suturing, so that the safety and the convenience of surgical operation are improved, and the practicability of a clinical operation is expanded.

The invention relates to the technical field of medical instruments, and discloses subcutaneous incision expanding forceps. Wherein the subcutaneous incision expanding forceps comprise two expanding handles and two expanding arms, and the two expanding handles can be unfolded or combined relative to the movable joint; the two expanding arms are connected with the two expanding handles in a one-to-one correspondence mode, each expanding arm comprises a first section connected with the expanding arm and a second section connected with the first section, a first preset included angle is formed between the second section and the inner side of the first section, a hook is arranged at the end, away from the first section, of the second section, and the hook can expand the subcutaneous incision when the two expanding handles are unfolded or combined; a second preset included angle is formed between the plane where the second section is located and the plane where the expanding handle is located. The first preset included angle is formed between the first section and the second section of the expanding arm, so that an enough operation space is provided for an operator above a subcutaneous incision position; and a second preset included angle is formed between the plane where the second section is located and the plane where the expanding handle is located, so that interference of the subcutaneous incision expanding forceps to other surgical instruments during intraoperative operation is avoided.

A system and method for determining the presence of cancerous tissue within a tissue cavity is provided. The system includes one or more excitation light sources, a photodetector, a probe, and a system controller. The probe includes an optically transparent probe body configured to fit within the tissue cavity. The system controller is in communication with the excitation light sources, the photodetector, and a memory storing instructions. The instructions when executed cause the system controller to a) control the excitation light sources to produce excitation light beams within the probe body, the excitation light beams operable to produce a response of the tissue to the interrogation and control the photodetector to detect the response and produce signals representative thereof; and b) produce information indicative of a presence of the cancerous tissue using the signals representative of the response.

The invention discloses a cross-shaped screw-holding screwdriver which comprises a screwdriver rod, a screw-holding sleeve pipe and a pipe pushing sleeve. The screwdriver rod, the screw-holding sleeveand the pipe pushing sleeve are coaxially and slidably arranged, the inner wall of a first cavity formed by the axis of the screw-holding sleeve pipe is attached to the outer wall of the screwdriverrod, and a second cavity formed by the axis of the pipe pushing sleeve is attached to the outer wall of the screw-holding sleeve pipe. Cross-shaped patterns are formed at the front end of the screwdriver rod, the front end of the screw-holding sleeve pipe is divided into four elastic clamping pieces through a cross-shaped groove formed in the axial direction of the screw-holding sleeve pipe, and aclamping cavity for clamping the tail end of a cross-shaped screw is formed between the inner sides of the front ends of the elastic clamping pieces and the outer side of the front end of the screwdriver rod. The four elastic clamping pieces are gathered towards the axis through the pipe pushing sleeve so that the cross-shaped screw can be clamped in the clamping cavity. The cross-shaped screw-holding screwdriver is used in a conventional cervical vertebra operation and can effectively and quickly hold a screw, the problems of screwing slowly, blocking of sight and not effectively grasping angles are solved for a doctor, and a simple and quick screw driving tool is provided for the cervical vertebra operation. Intraoperative operation is stable, operation efficiency is high, and safety and reliability are achieved.

The invention provides an ultrasonic percutaneous nephroscope integrated lithotripsy device. The device comprises an operation tube and a control mechanism, wherein the operation tube is provided with an endoscope channel and an operation channel, a plurality of connectors are arranged on the control mechanism, a handle, a pull ring and a pull ring protection ring are arranged below the control mechanism, an arc groove, a clamping handle and a water outlet connector are arranged on the surface of the front end of the control mechanism, a chute block in an operation chamber of the control mechanism is in sliding connection with a rack, the rack is in meshed connection with a gear, a ratchet wheel is arranged on one side of the surface of the front end of the gear, a pawl is arranged on a shifting rod, a first connecting rod at the rear end of the gear is in shaft connection with a second connecting rod, and the second connecting rod is movably connected with a fixing sleeve. The handle can be held by a single hand to fix the insertion position and angle, meanwhile, the pull ring is matched with the position of the clamping handle, the extension length of a lithotripsy rod is adjusted, and the percutaneous nephroscope is connected with an ultrasonic lithotripsy device, so that the device can be operated by a single hand during an operation, other operations can be performed by the other hand, meanwhile, the device is detached at any time according to intraoperative operation, and therefore, the device has wide popularization and application values in the field of urinary calculus treatment.