20results about How to "Prolong surgery 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 provides a folate receptor targeting small molecule compound, a preparation method, a composition and application. Specifically provided is a compound represented by formula I or a pharmaceutically acceptable salt thereof. The compound or the pharmaceutically acceptable salt thereof provided by the invention can be used as a small-molecule targeting fluorescence contrast agent for assisting surgical treatment, has the advantages of novel structure, good solubility, small steric hindrance and strong targeting property, can obviously improve the view field of tumor surgery, and is beneficial to efficiently and accurately implementing excision of pathological tissues such as tumor tissues, boundary tissues and the like. # imgabs0 #

The utility model discloses a one-way flap type percutaneous nephroscope calculus removing device which comprises a working sheath and a cylinder calculus removing device, the cylinder calculus removing device is movably connected with the working sheath, the cylinder calculus removing device comprises a fence structure composed of an upper lantern ring, ribs and a lower lantern ring, the ribs are connected with the upper lantern ring, and the lower lantern ring is connected with the lower lantern ring. The inner wall of the bottom end of the cylindrical stone extractor is detachably connected with a valve piece assembly used for preventing stone fragments from returning into the kidney, by means of the cylindrical stone extractor, the front stone can be seen through an endoscope camera installed at the rear end of the cylindrical stone extractor, and therefore the stone extraction efficiency is improved. The fence-shaped hollow structure facilitates observation and drainage, it is guaranteed that stone fragments are locked once entering the cylindrical stone extractor, the stone fragments are prevented from backing back into the kidney, the situation that the operation time is prolonged and larger trauma is caused to a patient is avoided, and the cylindrical stone extractor has certain use value and popularization value.

The invention provides a composition containing folic acid compounds and a near-infrared fluorescence capture system. The near-infrared fluorescence capture system comprises an imaging module, and the imaging module comprises a compound shown in the formula I or pharmaceutically acceptable salt of the compound. The compound shown in the formula I or the pharmaceutically acceptable salt of the compound can be used as a near-infrared fluorescence imaging agent, and is good in targeting property and clinical application prospect. # imgabs0 #

The utility model discloses an adjustable knotless orthopedic ligament reconstruction internal implant, which belongs to the technical field of orthopedic implants and comprises a fixing plate, a fixing ring device and a fixing line, and a pair of first threading holes is arranged in the middle of the fixing plate; the fixing ring device comprises a fixing ring and a button fixing piece, the button fixing piece comprises a button body and a retaining ring located on the inner side of the button body, a second threading hole is formed in the retaining ring, a containing groove used for containing the button body is formed in the fixing ring, and a through hole allowing the retaining ring to penetrate out is formed in the bottom wall of the containing groove; the fixing line is wound in the first threading hole and the second threading hole to form a loop ring, the two ends of the fixing line penetrate through the bottom wall of the containing groove and then penetrate out of the containing groove from the side face of the containing groove, and clamping points used for clamping the two ends of the fixing line are formed between the containing groove and the button body. The device is high in tensile strength, accurate in ligament reconstruction positioning and good in fixing effect.

The invention belongs to the technical field of medical ultrasonic data processing, and discloses an ultrasonic high-precision bone ranging method, system and probe for noninvasive registration. The first receiving array element and the second receiving array element convert the sound pressure of the received multiple groups of sound pressure echo signals into electric signals, then the electric signals are amplified, low-frequency interference and ultrasonic higher harmonics are filtered out to obtain harmonic voltage signals, and echo data D are obtained through an analog-to-digital converter and temporarily stored in a single-chip microcomputer; when the upper computer sends instruction request data, the lower computer uploads echo data to the upper computer, waveform display is carried out on the echo data on the upper computer, and a measurement distance is calculated based on a bone surface echo detection algorithm. The invention has the advantages of noninvasive property, rapidness, accuracy (the error is not greater than 1mm) and the like, and has the advantages of miniaturization, convenience in operation, easiness in integration, good targeting accuracy, low cost and the like.

The utility model discloses a positioning and depth-setting line passing instrument for two angled communicated bone blind sidewalks, which solves the problems that consumable-free fixation cannot be realized and line passing cannot be completed in angled communicated blind sidewalks in the existing tail line fixing mode, and comprises a tool main frame, a depth-setting opening, an angle fixer, a depth-setting hollow guide sleeve and an angle-setting hollow guide sleeve, the depth setting opening is formed in one end of the tool main frame, sliding ways are arranged on the two sides of the tool main frame, the angle fixator is in an inverted U shape, sliding grooves are formed in the two sides of the angle fixator, the angle fixator can slide on the tool main frame conveniently through matching of the sliding grooves and the sliding ways, and the angle setting opening is formed in the upper portion of the angle fixator. The depth-keeping hollow guide sleeve is installed in the depth-keeping opening, and the angle-keeping hollow guide sleeve is installed in the angle-keeping opening. According to the application principle and scene, suture auxiliary fixing is achieved, the depth and the position of a hole channel are defined, and muscle-bone healing is promoted.

This invention discloses a silicone oil thrust frame, relating to the field of medical device technology. It includes a syringe holder, an adapter holder, and an adapter. A syringe is quickly connected to the syringe holder. The syringe holder is connected to the adapter holder via a long connecting tube. A pagoda connector is quickly connected to the adapter holder. The pagoda connector is connected to the adapter via a short connecting tube. Both the syringe holder and the adapter holder have identical quick-release structures. This invention allows for rapid assembly and replacement of the syringe and adapter, is less prone to damage and detachment, and can quickly adapt to different devices in case of emergencies during surgery, avoiding waste of consumables, prolonged operation time, and reducing procurement costs.

This invention relates to the field of medical auxiliary devices, specifically to a visual endoscopic minimally invasive surgical aid device, comprising a metal cannula and a transparent inner tube. The transparent inner tube slides within the metal cannula. The metal cannula contains a sealing mechanism for sealing the transparent inner tube and a clamping mechanism for applying clamping force to the transparent inner tube. The sealing and clamping mechanisms coordinate with the operation of the transparent inner tube, enabling axial displacement of the transparent inner tube to trigger synchronous adjustment of the sealing and clamping mechanisms, achieving sealing and clamping fixation. This invention combines the axial sliding operation of the transparent inner tube with the synchronous triggering of sealing and clamping functions, achieving a linkage design where operation equals sealing and movement equals locking; it simplifies surgical procedures and improves surgical efficiency.

The invention provides a gallstone removing device for a gallstone operation, and belongs to the technical field of medical instruments. Comprising a minimally invasive channel, a puncture needle tube is inserted in the minimally invasive channel, a supporting tube is inserted in the puncture needle tube, one end of the supporting tube is fixedly connected with a grab handle, the other end of the supporting tube is fixedly connected with an expansion opening, a fixing plate is fixedly connected to the outer wall of the supporting tube, and three sliding blocks are fixedly connected to the inner wall of the expansion opening; two supporting frames are fixedly connected to the outer wall of the top of the grab handle, and a through hole is formed in the grab handle; the clamping assembly is used for clamping gall-stone in the gall bladder of a patient, and the cutting assembly is used for chopping large gall-stone in the gall bladder of the patient. By arranging the cutting assembly, a doctor can cut up the large stone in the gall bladder, if the large stone is not cut, the operation time can be prolonged or the incision on the outer wall of the gall bladder is torn, and the postoperative recovery is influenced. By means of the cutting assembly, a doctor can directly cut the stone during clamping, tools do not need to be replaced, and the operation time is shortened.

The utility model discloses an improved laparoscopic panhysterectomy uterus manipulator, and relates to the technical field of uterus manipulators, the improved laparoscopic panhysterectomy uterus manipulator comprises a fixing assembly, and the fixing assembly is used for assisting hysterectomy; the fixing assembly comprises a uterus lifting rod; the uterus lifting rod is cylindrical; the limiting assembly is used for stabilizing the shape of the uterus; the limiting assembly comprises a snail angle, a groove and a spring; the number of the snail corners is two, and the snail corners are in a cylinder shape. The lower ends of the snail corners are rotationally connected to the upper end of the uterus lifting rod, and the two snail corners are symmetrically installed. The uterus lifting rod can support the inner wall of the uterus by additionally arranging the limiting assembly and changing the shape of the uterus lifting rod when the uterus lifting rod is used, the success rate of an operation is increased, and the situation that in the operation process, the uterus shakes, and consequently the operation time is prolonged is effectively prevented; the position of the snail angle is limited by additionally arranging the pulling rope, and the opening time and position of the snail angle are controlled.

The glaucoma catheter implanting system is characterized in that the glaucoma catheter implanting system comprises a shell and an implanting channel, and a safety mechanism and a transmission mechanism are arranged in the shell; one end of the implantation channel is connected with the front end of the shell, and the implantation channel is used for providing a containing cavity for a drainage catheter; the transmission mechanism is respectively connected with the implantation channel and the safety mechanism, and is used for pushing out the drainage catheter through the implantation channel and implanting the drainage catheter into a surgical site; and the safety mechanism is used for controlling the operation of the transmission mechanism. The problem that in the prior art, an implantation system is inconvenient to operate, so that the operation time is possibly prolonged is solved; and meanwhile, the device has the properties of preventing product false excitation, accurately positioning the drainage catheter, adjusting the angle of the inner tube, preventing eye tissues from being damaged when the implantation system is withdrawn and the like.

The utility model discloses a detachable spine bone marrow mud implanter which comprises a pipe fitting, the two ends of the pipe fitting are open, the pipe fitting comprises a connecting end arranged at one end of the pipe fitting, and the connecting end is used for being connected with an implant so as to assist the implant to be implanted into sclerotin; the rod piece is arranged in the pipe piece, the two ends of the rod piece extend out of the openings in the two ends of the pipe piece, and the rod piece is used for guiding an implant. The pedicle screw is used in cooperation with a pedicle screw, the pedicle screw can be directly implanted into bone cement through the Luer interface after the pedicle screw is implanted into the pedicle screw through a guide needle penetrating through an inner hole, multiple times of tool replacement in the operation process are reduced, the operation time is effectively prolonged, and the pedicle screw is detachable and convenient to clean and disinfect; the inner hole is a stepped inner hole, so that inner hole machining is facilitated, cost is saved, and production efficiency is improved.

Devices, systems, and methods for controlling the gap height of posterior resection in partial knee replacement surgery may include: A) using robotic surgical planning software to adjust the extension gap to fit the flexion gap to manually position a manual posterior cutting guide; B) using a surgical navigation system to determine the femoral rotation axis to correctly manually position the manual posterior cutting guide; C1) using shims to adjust the position of the manual posterior cutting guide; C2) using robotically guided femoral and tibial partial cutting guide blocks to position the robotically configured posterior cutting guide relative to the distal end of the femur; and D) using robotically guided femoral and tibial partial cutting guide blocks to guide the pin holes for the robotically configured posterior cutting guide relative to the distal end of the femur.

The present application discloses a non-contact cardiac electrophysiology three-dimensional mapping method, system, medium and equipment. The non-contact cardiac electrophysiology three-dimensional mapping method includes: using intracardiac ultrasound to establish a three-dimensional model of the endocardium; using an electrode catheter to obtain a continuous potential signal of the intracardiac electrode in one heartbeat cycle; using a triangular mesh to approximate the three-dimensional model of the endocardium, and obtaining the centroid, normal vector and area of ​​each triangular mesh; according to the potential signal, the centroid, the normal vector and the area, the three-dimensional distribution information of the charge density of the endocardium in one heartbeat cycle is calculated. The intracardiac ultrasound probe of the present application can perform spatial scanning through electronic deflection beams instead of mechanical deflection, so the three-dimensional modeling is simple and time-saving. In addition, the three-dimensional mapping catheter of the present application does not include an ultrasound probe, but only includes electrodes, which not only reduces the cost, but also has a thinner catheter diameter and is safer.

The invention discloses a tibia high-position inner side open wedge-shaped osteotomy operation guider, and belongs to the technical field of medical instruments, the tibia high-position inner side open wedge-shaped osteotomy operation guider comprises a fibula tip positioning frame, a tibia positioning frame is arranged on the right side of the outer side wall of the fibula tip positioning frame, and an adjusting groove is formed in the front surface of the tibia positioning frame; the outer side wall of the fibula tip positioning frame is slidably connected with the interior of the adjusting groove. In the prior art, fluoroscopic examination and guide needle positioning adjustment need to be conducted frequently by means of imaging equipment, the operation time is prolonged, radiation exposure of patients and medical staff is increased, the extension distance of a telescopic sleeve is observed through two first scale marks, and therefore the total length of the cut tibia is calculated, and the total length of the cut tibia is calculated. The guide needle can be accurately positioned at a time, the number of times of repeated adjustment and fluoroscopy in an operation is greatly reduced, the operation time is remarkably shortened, and the anesthesia time of a patient and the risk in the operation can be reduced.

The utility model relates to a kind of auxiliary removal bone mass under spinal endoscope, including instrument body, the instrument body one end is equipped with threaded rod, threaded rod outer wall is equipped with outer thread.The utility model can better lock the bone mass to be removed after ring saw, can take out bone mass along with ring saw, improve surgical efficiency, be conducive to surgical operation;Speed up operation time, reduce unnecessary repeated operation process.

The endoscopic surgery system comprises an electronic endoscope and an endoscopic surgery instrument, the electronic endoscope comprises an outer sheath, an endoscope tube, a one-way valve assembly, an inner sheath, a handle, a plug assembly and a mounting base, the outer sheath is mounted on the mounting base, the inner sheath is arranged in the outer sheath, the endoscope tube is fixed to the inner wall of the inner sheath, and the handle is arranged on the inner wall of the inner sheath. A lens part is arranged at the head end of the endoscope tube, a handle is arranged on the side face of the mounting base, the handle is connected with a plug assembly, an operation channel is formed in the inner sheath, the inner diameter size of the operation channel is matched with an endoscopic surgical instrument, and the operation end of the endoscopic surgical instrument can smoothly penetrate through the operation channel. The electronic endoscope adopts an integrated adaptive design, can be compatible with three surgical instruments of prostatic enucleation, tissue crushing and calculus crushing, realizes the function integration of two endoscopes for three purposes, and can quickly complete the switching of different surgical function operations only by mounting the required endoscopic surgical instrument and the electronic endoscope in a matched manner.

The utility model relates to a kind of high blood pressure cerebral hemorrhage minimally invasive puncture drainage operation positioning auxiliary device, including base and sliding block, the base is 180 ° fan ring plate, its surface is equipped with sliding slot, and its both ends are equipped with positioning bolt respectively;The sliding slot is circular-arc groove, and with the base concentric, its central angle is greater than 120 °;The positioning bolt is set along the radial direction of the base, can be tightly in the left and right temple of patient's head;The sliding block is fan ring plate, its shape and size are adapted to the sliding slot, and be placed in the sliding slot movably, and can move along concentric circle of the sliding slot;Still including limiting structure, install on the sliding block, with the linear type puncture channel of the center of base pointing to straight line type.This utility model is by hand operation and is connected on patient's head with base, then by moving sliding block and will puncture channel aim at skull hole, it can be realized puncture positioning, improve the efficiency and accuracy of positioning operation, create favorable conditions for improving operation quality.

The present invention relates to the field of medical device technology, and specifically to a disposable anorectal T-type pull rod type cutting stapler, which is suitable for the excision and anastomosis of rectal mucosal prolapse or hemorrhoidal mucosal tissue in the clinical anal canal. The disposable anorectal T-type pull rod type cutting stapler comprises a T-type pull rod type anvil seat adjustment device, a staple magazine assembly, a push piece driving device, a fixed handle, a rotating handle, an adjusting nut device, an indicating safety device and a rotating fixing device; the rear part of the T-type pull rod type anvil seat adjustment device is installed on the fixed handle, the staple magazine assembly is installed on the front part of the T-type pull rod type anvil seat adjustment device, the adjusting nut device is installed on the rear end of the T-type pull rod type anvil seat adjustment device, the push piece driving device is used to drive the annular knife and the push piece, the rotating handle is installed on the front end of the fixed handle, and is used to rotate and adjust the position of the fixed handle and the anvil seat, the rotating fixing device is sleeved on the rotating handle, and the indicating safety device is installed on the fixed handle.