379 results about "Hysteroscopes" patented technology

According to the valve type opening and closing hysteroscope, before examination or operation, when an opening and closing valve is in a closed state and reaches an examination position or an operation position, the opening and closing valve is opened through an opening and closing handle, the opening and closing valve can open the examination position or the operation position, and examination or operation is conducted through a micropore camera on an imaging seat; when tissue fluid or blood blocks an examination position or an operation position, the flushing fluid assembly pumps flushing fluid into the examination position or the operation position, after flushing, the vacuum extraction assembly is started to suck away mixed fluid of the tissue fluid or the blood and the flushing fluid through the negative pressure suction hole, and after examination or operation is completed, the opening and closing valve is closed through the opening and closing handle, and the flushing fluid or the flushing fluid is pumped into the examination position or the operation position. In this way, the problem that tissue fluid or blood flowing out of the human body blocks the view field of the hysteroscope can be effectively solved, and when the opening and closing valve is closed, the imaging assembly is in a streamline shape and can conveniently stretch into the hysteroscope for examination or operation.

The utility model discloses a hysteroscope and a liquid return mechanism thereof. The liquid return mechanism comprises a shell for the rear end of the insertion body of the hysteroscope to be fixedly inserted and arranged, and the shell has a second liquid inlet channel and a second liquid return channel that are independent of each other. The second liquid inlet channel is communicated with the inlet of the first liquid inlet channel of the insertion body, and the second liquid return channel is communicated with the outlet of the first liquid return channel of the insertion body. The first liquid return channel and the first liquid inlet channel are independent of each other, and the inlet of the first liquid return channel and the outlet of the first liquid inlet channel are located at the head end of the insertion body, and the outlet of the first liquid return channel and the inlet of the first liquid inlet channel are located at the rear end of the insertion body. The liquid return mechanism of the utility model has the advantages of being simple, efficient and small in space.

The invention relates to the field of myoma stripping instruments, and discloses a hysteroscope uterine submucosa myoma stripper which comprises a handle, a controller and a power source, a catheter is arranged at one end of the handle, a smashing head is arranged at one end of the catheter, a movable covering mechanism is arranged on the outer side of the smashing head, and the movable covering mechanism is arranged on the outer side of the handle. The movable covering mechanism is used for clamping and fixing the myoma and then is matched with the crushing head to stably crush the myoma; the movable covering mechanism comprises a plurality of cover plates, one ends of the cover plates are movably connected to the guide pipe, and the cover plates are distributed in the circumferential direction; and the driving assembly is used for driving the plurality of cover plates to realize expansion or contraction actions. According to the myoma crushing device, the movable covering mechanism is arranged, so that the process of covering and wrapping the crushing head and clamping myoma for crushing can be realized according to needs, and compared with adverse consequences caused by overflow of myoma crushing by a direct method, the myoma crushing device is more reasonable in treatment of myoma tissues and higher in safety.

The invention relates to the technical field of hysteroscopes, and provides a hysteroscope image target detection method and system.The method comprises the steps that a hysteroscope is inserted into a uterine cavity of a patient, and high-definition images and environment data of tissue in the uterine cavity are collected in real time; performing automatic analysis by using an image recognition technology, recognizing different types of lesion tissues, and automatically performing lesion assessment to obtain first assessment data; according to the physiological data set of the patient, the future development potential of the lesion is analyzed and evaluated through association of a multi-level neural network model, risk grade division is carried out on a lesion area, and second evaluation data is generated; and automatically generating a risk assessment report according to the second assessment data. According to the invention, a targeted risk assessment report can be output objectively and automatically, and reliable data support and technical support are provided for scientific assessment and intelligent management of intrauterine lesions.

The invention relates to the technical field of bleeding amount monitoring, in particular to a hysteroscopic surgery bleeding amount monitoring method, which comprises the following steps of: performing preprocessing and feature extraction on an acquired hysteroscopic image, and determining a bleeding point location and a bleeding area; establishing a bleeding model, and dynamically calculating a first value of the bleeding amount according to the bleeding point location and the bleeding area data; a multispectral sensor is arranged in the suction pipeline, liquid components are analyzed in real time through multiple wavelengths, and the hemoglobin concentration is calculated; determining a second value of the amount of bleeding based on the fluid flow rate within the aspiration conduit; collecting heart rate and blood pressure data of a patient, performing data fusion in combination with the first value and the second value of the bleeding amount, dynamically adjusting the weight, and outputting an estimated value of the bleeding amount; setting graded early warning thresholds, and executing prompts of corresponding grades when the thresholds are reached; according to the invention, dynamic weight adjustment is carried out on the first value and the second value; and combining the first value and the second value with the dynamic weight, fusing and outputting a bleeding amount prediction value so as to improve the prediction accuracy.

The invention discloses an intelligent hysteroscope liquid management system and a fluctuation suppression method thereof, and relates to the technical field of medical equipment liquid management. According to the intelligent hysteroscope liquid management system and the fluctuation suppression method thereof, a liquid fluctuation detection module, a dynamic fluctuation compensation control module and a fluctuation suppression module are arranged, liquid pressure and flow data in a uterine cavity and in an infusion pipeline are collected, frequency domain and time domain analysis technologies are combined, liquid fluctuation characteristics are extracted, and a dynamic characteristic model is established. Based on the fluctuation characteristic model, the liquid fluctuation index is calculated in real time, the flow speed of the infusion pump and the opening degree of the return valve are dynamically adjusted through a self-adaptive control algorithm, and therefore effective compensation and suppression of liquid fluctuation are achieved. Meanwhile, through the flexible damping assembly, high-frequency fluctuation in the liquid transmission process is absorbed on the physical level, and the fluctuation restraining effect is further optimized. The liquid management precision in hysteroscopic surgery can be remarkably improved, surgical operation interference caused by liquid fluctuation is reduced, and the stability of the surgery is guaranteed.

The invention discloses a hysteroscope real-time liquid pressure stability control method and a hysteroscope real-time liquid pressure stability control system, particularly relates to the field of hysteroscope operation liquid pressure control, and aims to solve the problems of unclear operation view and unstable operation caused by pressure fluctuation. Constructing a mathematical model reflecting operation habits by utilizing a long-short-term memory network, and capturing time correlation and mode characteristics of the operation; quantifying the matching degree of the operation data and the model and the multi-scale fluctuation characteristic of the liquid pressure through a dynamic time warping algorithm and multi-fractal spectrum analysis, generating an operation model offset sensitive value, and evaluating whether the current operation has further control and adjustment conditions or not; the peak value and the valley value of the abnormal pressure are accurately recognized in combination with the empirical mode decomposition technology, real-time peak clipping and valley compensation are conducted through a second-order delay control strategy and a proportional integral differential algorithm, and finally smoothness and stability of the liquid pressure are achieved.

The utility model discloses a hysteroscope water leakage prevention device, which belongs to the technical field of medical instruments and comprises a circular truncated cone, and the circular truncated cone is provided with an injection port for injecting uterine distention liquid, a discharge port for discharging the uterine distention liquid and an operation hole for accommodating a hysteroscope. The left sides of the discharge port and the injection port are communicated with the pump body through hoses, a buffer plugging assembly is installed in the circular truncated cone, a water leakage prevention assembly is installed on the edge of the left side of the circular truncated cone, and the buffer plugging assembly is communicated with the water leakage prevention assembly. By means of the mode, the discharging opening is blocked by the buffering blocking assembly to prevent the uterine distention liquid from flowing out through the discharging opening, the edge of the circular truncated cone makes close contact with the cervix through the water leakage preventing assembly, the uterine distention liquid is prevented from flowing out of the edge of the circular truncated cone, and therefore the uterine distention liquid is effectively prevented from flowing out during hysteroscope detection or operation; and the buffer plugging assembly is used for elastically plugging the uterine cavity, so that the swelling pain feeling of a patient is reduced and the comfort of the patient is improved during uterine cavity detection or operation.

The invention discloses an occlusion device for generating cervical occlusion pressure and a method of using the same. The plugging device comprises a suction cup, the lower portion of the suction cup is in an outer arc shape, and the middle of the suction cup is connected with a hysteroscope access plugging pipe. The upper end of the first air bag is connected with an air feeding pipe, the outer side of the air feeding pipe is connected with the outer side of the hysteroscope access plugging pipe, and the end, away from the first air bag, of the air feeding pipe penetrates through the suction cup and is connected with the second air bag. Under the action of the vacuum pump, air between the suction cup and the outer wall of the cervix uteri can be sucked out, at the moment, air pressure between the suction cup and the outer wall of the cervix uteri becomes low and is smaller than external atmospheric pressure, and air pressure difference is formed, so that the suction cup can be adsorbed to the outside of the cervix uteri, and after the suction cup is adsorbed to the outside of the cervix uteri, the effect of blocking the cervix uteri can be achieved; normal saline is prevented from flowing out of the cervix, and the stability of the suction cup can be improved under the action of the first air bag.

The invention discloses a lightweight hysteroscope image diseased region detection model construction method, which comprises an input layer, a multi-scale feature pyramid module, a lightweight backbone network module, a target detection head module and an output layer, performing hierarchical feature extraction and cross-layer feature fusion through a multi-scale feature pyramid module to obtain fused feature maps of different scales; the fused feature maps are input into a lightweight backbone network module and are further processed through a deep separable self-association mechanism and a dynamic region attention mechanism, and the capturing capability of the features of the lesion site is enhanced; the processed feature map is input into a target detection head module, multi-scale feature matching detection and self-adaptive anchor frame generation are carried out, and the category and the position of the diseased region are predicted; finally, the output layer outputs a detection result of the lesion part, and the detection result comprises lesion types and corresponding bounding box information.

The present invention discloses a pressure monitoring system for hysteroscopic surgery and an adaptive flow rate control method thereof, and relates to the technical field of hysteroscopic surgery pressure monitoring and flow rate control. By obtaining the internal pressure value of the uterine cavity and the pressure value of the infusion line, and based on the pressure of the infusion line, analyzing the influence of liquid flow resistance, dynamic viscosity, density and flow rate change on the pressure, an infusion line pressure dynamic compensation model is established to calculate the real pressure value of the infusion line, and compare it with the internal pressure value of the uterine cavity to obtain the pressure deviation index. If the deviation index exceeds the threshold, the excess value is calculated, and the abnormal classification is performed, the feedback level is set, and a PID control equation is constructed to adjust the flow rate of the infusion pump. Through the PID control equation, the flow rate of the infusion pump is adjusted in real time, and the adjusted uterine cavity pressure is monitored and fed back, thereby achieving accurate flow rate control and pressure regulation, and improving the safety of the operation.

The invention relates to a water poisoning prevention system for hysteroscope electric resection, and belongs to the technical field of medical equipment. The water poisoning prevention system comprises a data acquisition module used for acquiring operation data information related to hysteroscope electric resection; and the data processing module is used for receiving and processing the operation data information acquired by the data acquisition module and calculating and updating a water poisoning risk value in real time, and the data acquisition module comprises an input unit and a monitoring unit. The data processing module is configured to preliminarily calculate a water poisoning risk value according to the predicted operation duration obtained by the input unit, the type of the uterus distending medium to be used, the prepared uterus distending pressure and the measured average arterial pressure so as to obtain an expected risk value corresponding to the predicted operation duration; and the water poisoning risk value obtained through preliminary calculation is dynamically adjusted according to the perfusion liquid amount, the blood oxygen saturation degree, the serum sodium ion level and the current operation duration obtained by the monitoring unit, so that a dynamic risk value corresponding to the current operation duration is obtained.

A surgical system includes an ultrasound device and a surgical instrument. The ultrasound device includes a shaft having a body defining a longitudinal axis and including a lumen extending coaxially therethrough, and an ultrasound sensor assembly configured to enable ultrasound imaging of a field of view. The ultrasound sensor assembly is disposed at a distal end portion of the body of the shaft, offset relative to the longitudinal axis, and oriented such that the field of view is offset relative to the longitudinal axis. The surgical instrument is configured for removable insertion through the lumen of the body of the shaft and to extend distally from the distal end portion of the body of the shaft.

The utility model discloses a hysteroscope which comprises a uterine distention liquid bag, a liquid inlet pipeline, an infusion pump, a liquid outlet pipeline, a liquid drainage pump, a waste liquid collection bottle, a first flow meter, a second flow meter, a processor and an upper computer. The infusion pump is used for driving uterine distention liquid in the uterine distention liquid bag to enter a uterine cavity through the liquid inlet pipeline; the liquid outlet pipeline is connected with the waste liquid collecting bottle, and the liquid discharge pump is used for driving uterine distention liquid in the uterine cavity to enter the waste liquid collecting bottle through the liquid outlet pipeline; the first flow meter is arranged on the liquid inlet pipeline and is used for detecting the flow rate of the uterine distention liquid in the liquid inlet pipeline; the second flow meter is arranged on the liquid outlet pipeline and is used for detecting the flow rate of the uterine distention liquid in the liquid outlet pipeline; the processor is electrically connected with the first flow meter and the second flow meter at the same time; and the upper computer is electrically connected with the processor. The technical problem of water poisoning in an operation in the prior art can be relieved.

The invention relates to the technical field of medical instruments, in particular to a hysteroscope uterine horn tissue excision device which comprises a hysteroscope and further comprises an incision device, and the incision device is arranged in the hysteroscope and extends out of the hysteroscope. The incision device comprises a pressing and pushing mechanism and a rotary incision mechanism, the pressing and pushing mechanism extends into the hysteroscope from the bottom of the hysteroscope, and the rotary incision mechanism is connected to the tail end of the pressing and pushing mechanism; the rotary incision mechanism is used for excising to-be-cut tissues, and the rotary incision mechanism is deflected by an angle through the pressing and pushing mechanism. Through pressing operation of the pressing and pushing mechanism, an incision tool bit of the rotary incision mechanism is subjected to angle deflection, accurate excision of uterine horn tissue is achieved, the tedious operation of excision through other surgical instruments is avoided, the working efficiency is improved, and the success rate of an operation is also improved.

The invention discloses a hysteroscope, and relates to the related technical field of hysteroscopes, the hysteroscope comprises a shell, a containing cavity is arranged in the shell, a valve core is installed on the inner wall of the containing cavity, the valve core is provided with a connection cavity along the axial direction, the valve core is connected with a working channel, a flushing channel and a suction channel, the working channel comprises a thin-wall steel pipe inserted with the valve core, and the thin-wall steel pipe is connected with the valve core. A transmission cavity is formed in the thin-wall steel pipe, the thin-wall steel pipe is provided with a working pipe in the transmission cavity, the inserting part extends into the connecting cavity, the peripheral side of the valve element is rotationally connected with a valve seat, an annular cavity communicated with the transmission cavity is formed in the valve seat, and the valve seat is communicated with the flushing channel and the suction channel; the valve core is rotationally connected with the valve seat, so that the valve seat and the connected water-gas pipe and liquid outlet pipe cannot be driven when the valve core drives the thin-wall steel pipe to rotate, the problem of pipeline winding is avoided, and the stability and reliability of equipment operation are guaranteed; a sealing cavity is formed in the valve seat through a sealing ring, effective isolation of the liquid outlet pipe and the liquid inlet pipe is achieved, and liquid leakage is prevented.

The invention belongs to the technical field of digital surgery, and particularly relates to a hysteroscope surgical robot control method and system based on multi-modal perception. The method comprises the steps of collecting multi-modal input signals such as visual, auditory, tactile, force sense and pose signals, uniformly performing time synchronization and perception track construction, and combining semantic behavior intention inference and tactile opportunity judgment to realize multi-dimensional consistency verification of operation instructions. And after the judgment result is valid, extracting control execution parameters, driving the mechanical arm to perform accurate operation, recording an execution process and updating a control threshold value to optimize feedback performance. The system comprises an input signal acquisition module, a six-dimensional force sensor module, a semantic inference module, a modal fusion module and the like, a closed-loop structure from sensing to control is constructed, and the operation precision, the interaction stability and the safety response capability of the hysteroscope robot in an operation are remarkably improved.

The invention relates to a storage device, in particular to a storage control device for a hysteroscope self-growing main body film. A storage control device for a hysteroscope self-growing main body film comprises a self-growing flexible main body film, an inflation cavity, an inflation device and a main body conveying device, the self-growing flexible main body film is connected to the inflation cavity, and the inflation device and the main body conveying device are arranged in the inflation cavity; the self-growing flexible main body film is made of a silica gel material, the self-growing flexible main body film is a two-stage growing main body, the diameter of the first-stage growing main body is larger than that of the second-stage growing main body, and the diameter of the second-stage growing main body can be changed. The adopted secondary growing flexible main body is made of silica gel materials, the compatibility to the human body is good, the pain is reduced, meanwhile, the injury to the human body is avoided, and the postoperative recovery speed is high.

The present invention relates to the technical field of gynecological disease examination, and discloses a gynecological disease examination protection device, including a gynecological examination couch, on which a fixing plate, a fixing frame, a hysteroscope bracket, a hysteroscope, a hysteroscope tube, a controller, a driving component and a protection mechanism are arranged; wherein the fixing plate is fixed to the gynecological examination couch through a bracket, and the fixing plate is located on one side of the gynecological examination couch; wherein the fixing frame is fixed to the fixing plate, and the hysteroscope bracket and the controller are both fixed to the fixing frame. The present invention provides a protection component, and during the examination process, the shielding mask can shield the face of the medical staff, and can prevent the uterine distension fluid from splashing on the face of the medical staff under the action of the pressure difference between the inside and outside of the patient's body, thereby protecting the medical staff.

A hysteroscopy system includes a scope having an internal channel, a sheath removably coupled to the scope, and an outflow channel. The sheath has a distal flange extending internally towards an outer surface of the scope. The outflow channel is formed between an inner surface of the sheath and an outer surface of the scope. The distal flange forms a distal end of the outflow channel and is generally located between the scope and the sheath.

The invention relates to a lightweight yolov8-based endometritis classification and identification method and system, and the method comprises the steps: determining classified target historical hysteroscope image data, and enabling classification labels to comprise a normal classification group indicating normal endometrium and a lesion classification group indicating the existence of endometritis; dividing the target historical hysteroscope image data according to a preset distribution proportion to obtain training data and verification data; training data and verification data are input into a yolov8 classification model, in the training process, model lightweight processing is carried out based on weight importance pruning, quantification and knowledge distillation technologies, and feature weighting and selection based on an attention mechanism are carried out on target area features detected by yolov8 and related to endometrium and pre-acquired auxiliary modal features, so that the model weight is reduced; key feature information is extracted; and inputting real-time hysteroscope image data into the trained yov8 classification model to obtain an endometrial inflammation classification result for auxiliary diagnosis.

The invention relates to an intrauterine device system, in particular to an anchoring system for fixing an intrauterine device without ultrasonic guidance operation and a using method of the anchoring system, the anchoring system comprises a pusher capable of penetrating through a cervical canal, an anchoring structure fixator connected with the intrauterine device and a guide tube for placing the anchoring structure fixator, the guiding tube is arranged in the pusher, and the pusher penetrates through a cervical canal and then pushes the guiding tube to enable the anchoring structure fixing device to be anchored to the bottom wall of the uterus. Pushing and fixing of the intrauterine device can be achieved through an anchoring system composed of the pusher, the anchoring structure fixator and the guide tube under ultrasonic guidance, hysteroscope suture operation is not needed, the requirement for the environment is low, safety is high, the intrauterine device is particularly suitable for patients with uterine enlargement and serious dysmenorrhea symptoms, and the application range is wide. Therefore, the convenience of the patient can be improved, and the medical burden related to the conventional operation method can be reduced.

The present invention discloses an intelligent hysteroscopic liquid management system and a fluctuation suppression method thereof, and relates to the technical field of liquid management of medical equipment. The intelligent hysteroscopic liquid management system and the fluctuation suppression method thereof collect the liquid pressure and flow data inside the uterine cavity and the infusion pipeline by setting a liquid fluctuation detection module, a dynamic fluctuation compensation control module, and a fluctuation suppression module, and extract the liquid fluctuation characteristics and establish a dynamic characteristic model by combining frequency domain and time domain analysis technology. Based on the fluctuation characteristic model, the liquid fluctuation index is calculated in real time, and the flow rate and the opening of the reflux valve of the infusion pump are dynamically adjusted through an adaptive control algorithm, so as to achieve effective compensation and suppression of liquid fluctuations. At the same time, through a flexible shock-absorbing component, high-frequency fluctuations in the liquid transmission process are absorbed at the physical level, and the fluctuation suppression effect is further optimized. The liquid management accuracy in hysteroscopic surgery can be significantly improved, the interference of surgical operations caused by liquid fluctuations can be reduced, and the stability of the surgery can be ensured.

The utility model relates to the field of medical instruments. The hysteroscope liquid collecting barrel comprises a collecting barrel body, a floating groove is formed in the lower side of one end of the collecting barrel body, a floating block is slidably inserted into the floating groove, a separating barrel is attached to the upper end of the collecting barrel body, a sliding groove is fixed to the inner wall of the lower end of the separating barrel, and magnets are fixed to the two ends of the inner wall of the sliding groove. And the upper end of the separation cylinder is in threaded connection with a protective cover. Through cooperative use of the placing box and the filter screen, liquid and secretions in a human body can be separated, when a worker needs to check the secretions, the bolt can be rotated to enable the adjusting blocks to be separated from the separation cylinder, at the moment, the two sets of adjusting blocks are pulled outwards to be separated from the surface of the separation cylinder, and the liquid in the human body can be separated from the secretions in the separation cylinder. And then the separating cylinder is moved upwards, and at the moment, the placing box can be independently taken out for checking, so that the overall working efficiency is improved.

The invention relates to the technical field of hysteroscope resectoscopes, and discloses a hysteroscope resectoscope capable of preventing uterine perforation and a using method thereof.The hysteroscope resectoscope comprises a hysteroscope body and a plurality of ultrasonic ranging modules, a camera is arranged at the far end of the hysteroscope body and faces the resection position, the ultrasonic ranging modules are arranged at the far end, and the ultrasonic ranging modules are arranged at the far end of the hysteroscope body and face the resection position. The ultrasonic ranging modules face the electric resection part and are used for measuring the thickness of the uterus wall of the electric resection part. According to the hysteroscope, the ultrasonic ranging modules are arranged at the far end of the hysteroscope body to measure the thickness of the uterus wall of the electric resection part, the situation that when an electric resection operation of uterine submucosal myoma or endometrial polyp is carried out, due to the fact that the thickness of the uterus wall cannot be accurately evaluated, uterus perforation is accidentally caused is avoided, the safety and accuracy of the operation are improved, and the operation efficiency is improved. Complications are reduced, and the fertility of a patient is protected.

The utility model discloses a kind of hysteroscope liquid leakage prevention structures, including center cylinder base, the both ends of center cylinder base are fixedly connected with end fixed ring, the outer end array of two sides the end fixed ring is fixedly connected with multiple elastic supporting pieces, and the outer end of multiple elastic supporting pieces of same side is equipped with silica gel outer cover, two sides The outer side of elastic supporting piece is fixedly connected with operating slip ring and insertion stop seat respectively, and the outer end of two sides silica gel outer cover is fixedly connected with the outer edge of corresponding side operating slip ring and insertion stop seat.In insertion, small in diameter, it is convenient to set, and will not cause damage to cervix, can effectively solve the problem of clinical surgeon encountered in hysteroscopy surgery in uterine cavity liquid leakage, reduce operation time and surgical complications, improve operation efficiency and safety.

The invention relates to the technical field of biomedical engineering, in particular to an endometrial tissue CD56 detection method and application thereof, and the endometrial tissue CD56 detection method comprises the following steps: S1, obtaining an endometrial tissue sample by adopting a non-invasive or minimally invasive method; s2, carrying out standardization treatment on the collected endometrial tissue sample; s3, performing immunohistochemical staining; s4, performing digital analysis; and S5, judging a result. According to the research, the endometrial tissue is obtained under the endometrial sampler, the expression level of CD56 in the endometrial tissue is detected through immunohistochemistry, and an RSA patient with the too high CD56 level is subjected to immunoregulation treatment, so that the pregnancy outcome is improved, and compared with traditional diagnostic curettage, the endometrial curettage has the advantage of being small in endometrial damage, and the clinical application prospect is broad. Compared with a hysteroscope endometrial biopsy operation, the method has the advantages of being convenient to operate and low in cost.

The hysteroscope comprises a handheld device, an infusion tube, a drainage tube, a first flow meter, a second flow meter, a processor and a cut-off assembly, the handheld device comprises a handheld part and an insertion part connected with the handheld part, and the insertion part comprises a second shell and an insertion tube arranged on the second shell; a liquid inlet pipeline and a liquid outlet pipeline penetrate through the insertion pipe in the axial direction; the infusion tube is fixed on the handheld part, one end of the infusion tube is connected to the liquid inlet pipeline, and the other end is connected with an infusion pump; one end of the liquid discharge pipe is connected to the liquid outlet pipeline, and the other end is used for discharging uterine distention liquid in the body of the patient; the processor is electrically connected with the first flow meter and the second flow meter at the same time; the cut-off assembly is integrated on the handheld part, and the cut-off assembly is electrically connected with the processor and used for cutting off the uterine distention liquid in the infusion tube from flowing into the human body. The device can be automatically started to cut off a loop in an infusion tube when excessive uterine fluid is input, so that the operation burden of a doctor is reduced, the timeliness is good, and water poisoning of a patient caused by excessive uterine fluid input is avoided.

The present invention discloses a hysteroscopic liquid management leakage detection method and system, which specifically relates to the field of hysteroscopic surgery liquid management, and is used to solve the problem of real-time monitoring leakage. The method is to set the sampling frequency and the moving average method, collect pressure data in real time, dynamically update the lag time using the cross-correlation function and the sliding window, build a prediction model to improve the pressure prediction accuracy, dynamically adjust the perfusion pump output using the PID algorithm, continuously monitor and calculate the pressure difference and lag time in real time, generate corresponding signals, divide the lag time series to calculate the lag time complexity index, combine the pressure fluctuation asymmetry index, and comprehensively quantify the system disorder and abnormal pressure fluctuation, provide in-depth risk assessment, and ensure the safety of surgery. Through multi-level evaluation and real-time adjustment, it is possible to accurately monitor the liquid management status, identify potential leakage risks, ensure the smooth progress of surgery and patient safety, and improve system reliability and surgery quality.

A method of assessing Fallopian tubal patency includes introducing a distension medium into a patient's uterus, introducing a contrasting medium into the uterus, and observing the contrasting medium, for example, via a hysteroscope, to determine whether the contrasting medium flows into one or both Fallopian tubes. A device for assessing Fallopian tubal patency includes a chamber for receiving contrast media, a flow path through the chamber for delivering distension media to a patient's uterus, and a flow controller for regulating the flow of distension media to the patient's uterus. The flow path is configured to permit flow of contrast media from the chamber into the flow path.