30 results about "Hysteroscopic surgery" patented technology

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 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 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 provides a hysteroscope uterine distention medium intelligent management and control system and method based on bimodal data fusion. The system comprises an intelligent sensing execution device and a central management and control server. The intelligent sensing execution device is configured to be detachably installed on the outer wall of the fluid infusion pipeline and used for collecting physical state data of the uterus expanding medium in a non-contact mode and executing on-off control. The central management and control server is configured with a bimodal data fusion engine and synchronously receives the operation video stream and the physical state data; a deep learning algorithm is used to identify a surgical operation stage, and a real-time flow rate and an accumulated consumption amount calculated by physical data are combined to derive a dynamic residual available time length; and generating a hierarchical control instruction according to the matching of the calculation result and the operation stage. According to the invention, fluid control information is superposed to an operation picture through an augmented reality technology, and fluid excessive absorption monitoring and microbubble detection logic are integrated, so that intelligent closed-loop control and active security defense of a hysteroscope operation fluid medium are realized.

The invention relates to the related technical field of constant-temperature infusion, and discloses integrated constant-temperature infusion equipment for hysteroscopic surgery, which comprises an infusion support, a constant-temperature box is arranged at the upper part of the infusion support, a plurality of U-shaped through holes are formed in the constant-temperature box, anti-falling constant-temperature components are arranged in the U-shaped through holes, and a plurality of constant-temperature components are arranged in the constant-temperature box; due to the fact that the distance between the inclined faces of the sides, close to each other, of the two guide blocks is gradually reduced from top to bottom, the limiting and fixing effects of a plurality of pairs of movable shells and rubber parts on an infusion tube from top to bottom can be gradually improved, and the anti-falling effect on the infusion tube is greatly improved; first S-shaped channels in a plurality of pairs of movable shells are used for gradually improving the heating effect on liquid in the infusion tube from top to bottom, so that the liquid in the infusion tube is uniformly heated to 36-38 DEG C, and the condition of non-uniform heating is prevented; and the liquid in the infusion tube is heated for multiple times, so that the heating efficiency of the liquid in the infusion tube is improved.

The utility model discloses an intraoperative specimen collecting device for hysteroscopic surgery, which comprises a main pipeline, a sampling pipeline, a sampling pipeline, a sampling pipeline, a sampling pipeline, a sampling pipeline, a sampling pipeline and a sampling pipeline, and is characterized in that the main pipeline comprises a main pipeline body, and one end of the main pipeline body is connected with a suction pipe while the other end is connected with a negative pressure suction device; the collecting pipeline comprises a branch pipe body communicated with the main pipe body, and the free end of the branch pipe body is detachably connected with a negative pressure source; and the control valves are respectively arranged on the main pipe body and the branch pipe bodies and are used for controlling the main pipe body and the branch pipe bodies to be alternately connected and disconnected. According to the aspirator tube, abnormal tissue specimens reserved in the main tube body can be quickly and accurately transferred into a specimen container during an operation, the aspirator tube does not need to be repeatedly inserted and pulled, it is ensured that the specimens are accurately collected, and the specimens are prevented from being polluted or the operation environment is prevented from being polluted.

The invention belongs to the technical field of intelligent medical control, and particularly relates to a hysteroscope surgical robot control method and system combining visual servo and remote cooperative operation. According to the method, time difference, spatial difference and image error between input of an operation terminal and response of a robot are analyzed through multi-mode information collection, a deviation index set is constructed, an operation mode is judged according to the deviation index set, real-time switching among an autonomous mode, a cooperative mode and a guiding mode is achieved, and a corrected or amplitude-limited control instruction is output. The system further combines image features and tactile feedback to realize real-time adjustment of the position of the instrument, and generates an image prompt layer according to the risk level and outputs visual warning information. And under the condition that the error continuously exceeds the limit, the system can automatically execute forced amplitude limiting and area locking, so that the operation safety is improved. By constructing a closed-loop control link, high-precision collaboration and safe intervention in remote minimally invasive operation are realized, and the method has a good clinical application prospect.

The invention provides a hysteroscope operation image data quality improvement method and system, and relates to the technical field of image processing, the method comprises the following steps: obtaining a hysteroscope image of a target patient at a specific time point, and obtaining multi-modal physiological time sequence data of the target patient before and after the specific time point; performing time sequence feature fusion analysis on the multi-modal physiological time sequence data to obtain individual physiological cycle phase information corresponding to a specific time point; inputting the individual physiological cycle phase information into a pre-trained healthy uterine cavity image generation agent, and outputting and obtaining a standard healthy uterine cavity reference image corresponding to a specific time point; and comparing the hysteroscope image with the standard healthy uterine cavity reference image, generating a pathological residual feature map, and performing enhanced display on the pathological residual feature map. The technical problem that in the prior art, abnormal features of hysteroscope images are not prominent is solved.

An ultrasound device includes a frame and an ultrasound sensor assembly. The frame includes first and second rails spaced apart relative to each other and a longitudinal segment defining a longitudinal axis. The longitudinal segment has a distal end portion. The ultrasound sensor assembly is configured to enable ultrasound imaging of a field of view and is attached to the distal end portion of the longitudinal segment of the frame and is oriented such that the field of view is disposed at an oblique angle relative to the longitudinal axis. A surgical system is also provided that includes the ultrasound device and a surgical instrument insertable through the ultrasound device.

The utility model relates to the technical field of collecting devices, and provides a liquid collecting device for gynecological hysteroscopic surgery, which comprises an upper group of supporting components and a lower group of supporting components which are arranged on a positioning rod, each supporting component comprises two first connecting rods, two adapter connecting rods and two second connecting rods, the two first connecting rods are hinged with the positioning rod, and the adapter connecting rods are hinged with the positioning rod. The two second connecting rods are arranged in a hinged mode, the first movable ends of the two first connecting rods are hinged to the second movable ends of the two second connecting rods through the two switching connecting rods correspondingly, and the supporting assembly is in an unfolded state or a folded state after rotating; after the bottom support and the supporting assemblies are in an unfolded state, the bottom support is arranged on the supporting assembly on the upper side; the top cover is arranged above the bottom support and used for covering the upper end of the plastic bag; when the supporting assembly is in the storage state, a storage interval is formed between the first connecting rod and the second connecting rod, and the storage interval is used for containing the bottom support and the top cover. By means of the technical scheme, the problem that in the prior art, storage is not convenient is solved.

The utility model relates to a disposable hysteroscope operation specimen collecting device which comprises an operation incision pasting film, a guide hopper, a flow guide pipe, a collecting part and a collecting barrel. A surgical field hole is formed in the middle of the surgical incision pasting film, one side of the surgical incision pasting film is connected with the two ends of the guide hopper, the lower end of the guide hopper is connected with the upper end of the flow guide pipe, the lower end of the flow guide pipe is connected with the upper end of the collecting part, and a plurality of liquid drainage holes are formed in the side wall of the collecting part; the exterior of the collecting part is detachably connected with the collecting barrel, and a folding part is arranged on the lower portion of the collecting barrel. The collecting barrel is arranged outside the collecting part, liquid discharged from the liquid discharging hole directly enters the collecting barrel to be collected, medical staff do not need to prepare a collecting device additionally, the link that the collecting part corresponds to the collecting device is avoided, preoperative preparation operation is simplified, the collecting part is connected with the collecting barrel, and the collecting barrel is convenient to use. And liquid can be prevented from flowing to an operating bed or the ground.

The application belongs to the technical field of digital surgery, and particularly relates to a hysteroscope surgery robot control method and system based on multi-modal perception. The method comprises collecting visual, auditory, tactile, force sense and pose multi-modal input signals, uniformly performing time synchronization and perception trajectory construction, combining semantic behavior intention inference and tactile timing judgment, and realizing multi-dimensional consistency verification of operation instructions. After determining the effective result, control execution parameters are extracted and a mechanical arm is driven to perform accurate operation, and the execution process is recorded and control thresholds are updated 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, and a closed-loop structure from perception to control is constructed, which significantly improves the operation accuracy, interactive stability and safety response capability of the hysteroscope robot in surgery.

The invention relates to an intelligent monitoring system for uterine distention liquid, which solves the problems that the existing hysteroscopic surgery is lack of special uterine distention liquid input and output monitoring equipment and cannot monitor the difference value of the input and output of the uterine distention liquid in real time. Comprising a base, a host control panel, a first electronic scale, a second electronic scale and an alarm. When in use, bagged uterine distention liquid is positioned on the uterine distention liquid suspension device, the first electronic scale transmits detected data of the uterine distention liquid to the host control panel to obtain an initial amount W1, the weight W2 of the uterine distention liquid bag is measured in time during operation, the W1 is subtracted from the W2 to obtain an outflow amount W3 of the uterine distention liquid in time, and the second electronic scale measures the weight W4 of the recycled uterine distention liquid in time. An algorithm that W3 minus W4 is equal to the loss amount of the uterine distention liquid is the uterine distention liquid perfusion reduction and recovery difference value W5, the host control panel can dynamically record and store the loss amount, the W5 can be dynamically and highlighted on the host control panel, an alarm threshold value aiming at the W5 can be set on the host control panel, and timely alarm reminding is achieved.

The present application relates to the technical field of medical devices, and discloses a gynecological hysteroscope surgery object-taking forceps, which comprises a forceps rod, the two ends of the forceps rod are respectively provided with a forceps head and a forceps handle, the inner side of the forceps rod is provided with a storage box and a push rod, and the outer side of the forceps rod is provided with a negative pressure assembly; one end of the push rod is connected with a movable lasso, the other end is connected with a push plate, the inside of the push rod is provided with a gas conveying channel, one end of the gas conveying channel is in communication with the inner side of the movable lasso, and the other end is connected with the negative pressure assembly; the push rod can push the movable lasso to separate from or enter the storage box, and the suction force generated by the negative pressure assembly can be transmitted to the tail end of the push rod through the gas conveying channel, so that the pre-fixing of target cervical tissue by the movable lasso and the adsorption of cut tissue by the negative pressure assembly can avoid repeated operation caused by tissue movement in the cutting process, reduce accidental damage to other surrounding tissues, reduce the risk of surgery and speed up the surgery process.

The invention discloses a biomarker for predicting cervical insufficiency and application thereof, and belongs to the technical field of biomedicine. In order to solve the problem that the prediction effect is limited due to the fact that current cervical insufficiency prediction is only analyzed on the basis of limited factors, clinical data of women receiving in-vitro fertilization-embryo transplantation treatment are studied, and biomarkers for predicting cervical insufficiency, including testosterone, androstenedione and AMH, are clarified. The biomarker is combined with BMI, hysteroscope operation times, diabetes mellitus before pregnancy, cervical length and past pregnancy times data of a patient to construct a column diagram model for predicting cervical insufficiency, so that high-risk groups with cervical insufficiency can be identified more accurately before pregnancy; therefore, the risk of abortion or premature delivery related to cervical insufficiency is reduced.

The invention relates to the technical field of hysteroscope operations, and discloses a hysteroscope operation cervix sealing and lifting device with a bionic lotus leaf structure, which comprises a main body assembly and a base, a hysteroscope body is arranged on the base, a liquid inlet and a liquid outlet are formed in the hysteroscope body, an instrument channel is connected to the hysteroscope body, and a light guide interface is formed in one side of the hysteroscope body; the lifting assembly is located on the mirror body and comprises a lifting piece. The device has the beneficial effects that the lifting device is arranged, the bionic lotus leaf microstructure is arranged on the surface of the disc body, a super-hydrophobic surface is formed, penetration of uterine distention liquid can be effectively prevented, the device is arranged outside the hysteroscope body in a sleeving mode and can be separated from the hysteroscope body, thorough sterilization and disinfection are facilitated, the device can be installed on hysteroscope bodies of different sizes, and the device is convenient to use. The locking structure can ensure that the disc body and the endoscope body are tightly attached, relative position deviation of the disc body and the endoscope body is avoided, and the elastic air bag ring is arranged on the edge of the disc body, so that sealing performance of the lifting device is improved, and the problem of leakage of uterine distention liquid is solved.

The utility model provides a waste liquid solid-liquid separation device for gynecologic hysteroscopic surgery, and relates to the field of solid-liquid separation equipment, the waste liquid solid-liquid separation device comprises a device box, a partition plate is fixedly arranged in the device box, a separation mechanism is fixedly arranged in the device box, after a medical worker pours waste liquid into the device box, a filter plate in the device box carries out solid-liquid separation on the poured waste liquid, and the solid-liquid separation mechanism is arranged in the device box. Under the obliquely-arranged filter plate, filtered solids fall to the other side of the partition plate of the device box, and when the solids are accumulated on the filter plate and cannot fall normally, the filter plate moves in the movable groove through the movable column under the driving of the self weight of the solids, so that the solids fall into the device box through the movable column. A movable column drives a supporting block to move downwards, the supporting block drives a spring to be in a compressed state, after solids on the filter plate fall, driving on the spring is relieved, and the spring drives the movable column to move upwards through the supporting block; and the movable column drives the filter plate to reset.

A surgical system includes a working device, a hysteroscope configured to receive the working device such that the hysteroscope constrains movement of the working device in at least one degree of freedom while permitting movement of the working device in at least one other degree of freedom, and an ultrasound device configured to receive the hysteroscope such that the ultrasound device constrains movement of the hysteroscope in at least one degree of freedom while permitting movement of the hysteroscope in at least one other degree of freedom. The working device, the hysteroscope, and the ultrasound device are configured to be coupled to at least one robotic arm.

The invention relates to the technical field of medical surgical instruments and gynecological hysteroscopic surgery auxiliary equipment, in particular to a hysteroscopic surgery complication comprehensive treatment system which comprises an integrated monitoring module, a control terminal module and a body position adjusting module. An integrated monitoring module, a control terminal module and a body position adjusting module are arranged, in the hysteroscope operation process, the uterine distention pressure is continuously fed back to a control terminal through a pressure sensor, a perfusion pump is closed when the uterine distention pressure exceeds the limit, the blood flow change of the uterine wall is scanned through an optical blood flow probe, and a perforation part is recognized (for example, a perforation blood flow signal of the fundus of uterus is weakened by 50%); a PETCO2 sudden drop signal is captured through the gas detection module, and the body position adjusting module is linked to turn over a patient, so that the real-time integrated monitoring of uterine perforation, abnormal perfusate absorption and air embolism in the hysteroscope operation can be realized, the accurate matching of dynamic regulation and control of uterine distention pressure and complication intervention strategies is optimized, and the operation efficiency is improved. Meanwhile, the interference of an anesthesia mode on perfusate absorption monitoring can be reduced.

1. The name of the design product: hysteroscope sheath. 2. The use of the design product: hysteroscope sheath for hysteroscopy operation. 3. The design features of the design product: the shape of the product. 4. The picture or photo that best shows the design features: perspective view.

The utility model discloses a special bag for hysteroscopic surgery, and relates to the technical field of medical instruments. The device comprises a bag made of a silica gel material, the bag is vertically arranged; guide strips are fixed to the front end and the rear end in the bag respectively. The guide strip is arranged in the left-right direction; first separation sheets are correspondingly arranged in the bag along the front-back direction; the internal space of the bag is separated by the first separation sheet; grooves are respectively formed in the front and rear ends of the first separation sheet; the grooves and the guide strips slide in a one-to-one correspondence manner; guide strips are fixed to the left side and the right side of the first partition piece in the front-back direction. A plurality of second separation sheets are distributed in the bag along the left-right direction; the second separation sheet comprises a mounting sleeve arranged in the left-right direction; the left portion of the mounting sleeve is slidably sleeved with an extension piece in the left-right direction. Sliding grooves are formed in the right end of the mounting sleeve and the left end of the extending piece respectively. The hysteroscope surgical article storage rack has the advantages that the number and the size of the storage space can be adjusted according to the types of surgical articles, and the integration effect of the hysteroscope surgical articles is improved.

A hysteroscopic surgery early-warning method, apparatus, and system, and a storage medium. The present invention relates to the technical field of surgery early-warning and is used for solving the problem in the prior art that hysteroscopic surgery early-warning relies on a single data source and has relatively poor practicability. Specifically, the method comprises: acquiring real-time electrocoagulation and electrosection data, the real-time negative deficit of uterine distension fluid, and the current surgery type (101); inputting the real-time electrocoagulation and electrosection data and the real-time negative deficit into a negative deficit prediction model to obtain a predicted negative deficit output by the negative deficit prediction model (102); obtaining, on the basis of a preset map, a first type of early-warning level and a first type of early-warning threshold range that correspond to the current surgery type (103); and using the first type of early-warning level corresponding to the threshold range within which the predicted negative deficit falls as a predicted early-warning level, and performing an early-warning operation corresponding to the predicted early-warning level (104). In this way, the present invention enables comprehensive utilization of a plurality of data sources in hysteroscopic surgery early warning; that is, the present invention can give an early warning of the surgery type while being capable of making predictions, showing improved practicability.

The invention discloses a hysteroscopic surgery perfusate monitoring system and a uterine distention pressure back calculation method, and relates to the technical field of hysteroscopic surgeries, the hysteroscopic surgery perfusate monitoring system comprises a monitoring host, the monitoring host is in communication connection with the following modules: a bimodal flow sensing module, the method is used for deploying ultrasonic and electromagnetic dual-mode non-contact flow sensors on an input pipeline and an output pipeline of a negative pressure bottle respectively, measuring errors caused by switching of types of perfusate or sudden change of flow velocity in an operation are corrected in real time through a time sequence feature fusion algorithm, and real-time flow difference data are obtained. According to the method, a multi-parameter coupled nonlinear inverse calculation mathematical model is constructed, individualized physiological parameters such as the uterine cavity volume, the uterine wall elastic modulus correction factor and the tissue absorption dynamic coefficient of a patient are deeply fused, and the key coefficient is dynamically adjusted according to the hysteresis relation between the intraoperative pressure and the liquid retention; the individualized and high-fidelity reconstruction of the real uterine distention pressure in the uterine cavity is realized, so that the risk early warning is more targeted and accurate.

The utility model discloses a combined type vaginal speculum for hysteroscopic surgery, which relates to the technical field of combined type vaginal speculum for hysteroscopic surgery, and comprises a handle, an adjusting mechanism is arranged at one end of the handle, the adjusting mechanism comprises a maintenance box, a rotating shaft is rotatably connected in the maintenance box, and the rotating shaft is connected with a rotating shaft. The two ends of the rotating shaft are fixedly connected with a first bevel gear and a second bevel gear. By rotating a twisting block, the twisting block drives a rotating shaft to rotate, the rotating shaft drives a first bevel gear and a second bevel gear to rotate, the first bevel gear and the second bevel gear drive a third bevel gear to rotate, the third bevel gear drives a threaded bolt to rotate, the threaded bolt drives a connecting plate to ascend and descend, and therefore the upper body is driven to move. When the upper body moves, the upward moving amplitude of the upper body is limited through the top plate, so that the opening amplitude of the upper body can be flexibly adjusted, a doctor can conveniently and flexibly operate, and the operation efficiency is improved.

The invention provides a hysteroscope surgery uterine corner high-risk focus accurate excision knife, and relates to the technical field of hysteroscope surgeries, the hysteroscope surgery uterine corner high-risk focus accurate excision knife comprises a hysteroscope hand-held handle, the hysteroscope hand-held handle is provided with a detection mechanism convenient for position detection, the hysteroscope hand-held handle is provided with a limiting mechanism convenient for equipment limiting, and the hysteroscope hand-held handle is provided with a handle. The detection mechanism comprises a hollow installation rod, an electrode rod, an installation ring and a fixing plate, the limiting mechanism comprises a limiting disc, and a long and thin mechanical rod is installed at the side end of the hysteroscope handheld handle in a penetrating mode. According to the device, independent and complementary safety protection structures in the axial dimension and the radial dimension are integrated, and a three-dimensional safety protection net for hysteroscopic surgery, especially for high-risk focus excision of the uterine horn is constructed. The axial protection focuses on accurately sensing and preventing the front perforation risk; radial protection focuses on sensing and eliminating the energy accidental injury risk caused by lateral compression damage and improper contact.

The invention relates to a hysteroscopic surgery bleeding amount real-time monitoring mechanism, and relates to the technical field of blood amount monitoring. Comprising a main body, a sampling pipe is fixed to one side of the main body, a filter is arranged in the sampling pipe, connecting assemblies are symmetrically arranged on the two sides of the filter, a self-locking assembly is arranged between the sampling pipe and a connecting pipe, and a pull rod is fixed to one side of the self-locking assembly. Waste liquid is filtered by the filter screen and then enters the monitoring body, solid impurities such as endometrial fragments and myoma fragments are completely intercepted in the filter, the impurities are prevented from being accumulated at a narrow connector of a sampling pipe or an inlet of a detection pool, the problem that the sampling flow speed is suddenly reduced or monitoring is interrupted is solved from the source, and the pressing plate is manually pressed to drive the lock catch to move. The lock catch is separated from the locking piece, the filter is separated from the connecting block, the filter is replaced, the maintenance time in the operation is greatly shortened, and the requirement for continuous monitoring in the whole process of the operation is met.

The invention discloses a hysteroscope uterine distention liquid collector which comprises a collecting basin and further comprises a waste liquid collecting device which is arranged below the collecting basin, connected with the collecting basin through a pipeline and used for collecting liquid flowing back in the collecting basin when a large amount of uterine distention liquid is used for flushing a uterine cavity, and the liquid is prevented from overflowing from the collecting basin; the supporting and attaching device is arranged on one side of the collecting basin and connected with the collecting basin in a clamped mode, and the supporting and attaching device can support the collecting basin; according to the device, the collecting basin is combined with the waste liquid collecting device, and is effectively connected with the collecting bag of the disposable drape, so that liquid collected by the collecting bag and the collecting basin of the drape in a hysteroscope operation can be collected. Due to the design of the transparent observation window and the scale marks, medical staff can visually and accurately measure the total dosage of the uterine distention liquid. By means of the accurate liquid amount measuring mode, the risk of water poisoning caused by inaccurate liquid amount statistics can be effectively avoided, and the safety of an operation is remarkably improved.

The invention relates to the technical field of medical instruments, and discloses an all-round hysteroscope operation system which comprises an outer sheath and at least three sets of switchable endoscope assemblies. The outer sheath serves as a common bearing foundation of the operation assembly and is provided with an outer tube, a fluid exchange channel and a quick locking connector. The endoscope assembly comprises a first endoscope assembly used for examination, a second endoscope assembly used for cold knife resection and a third endoscope assembly used for electric resection, all the assemblies are detachably connected with the outer sheath in a sealed mode through a standardized quick-locking connecting mechanism, and on-line switching is supported on the premise that the outer sheath does not exit. The first assembly and the second assembly complete tissue treatment through mechanical shearing force, and endometrial activity is protected. And the third assembly realizes large focus excision by using high-frequency energy. The problem of secondary dilatation injury caused by frequent replacement of the outer sheath in clinic is solved, the integration of examination, cold knife resection and electric resection ablation is realized, and the operation efficiency and safety are improved.

The utility model provides a self-filtering protective cover for hysteroscopic surgery. The self-filtering protective cover comprises a main body, a supporting frame connected to one end of the main body in a pivoted mode and a folding piece connected to the supporting frame. The main body is conical, and a conical hole is formed in the main body along with the shape. The small-sectional-area end of the body abuts against the body of a patient, the large-sectional-area end of the body is used for installing the supporting frame, and the body is further provided with elastic pieces used for being fixed to the legs of the patient. The supporting frame comprises at least two branch supports and connecting rod mechanisms arranged between the adjacent branch supports, the multiple branch supports are annularly arranged along the outer side of the main body, the folding pieces are annularly arranged on the branch supports, and when the connecting rod mechanisms are driven to move in the axial direction of the main body, the multiple branch supports are relatively close to or away from each other; therefore, the folding piece is in a nursing state or a flow guiding state. And a through drain hole is formed in the folding piece. The hysteroscope can form a nursing state or a flow guide state of the folding piece, and the situation that the hysteroscope touches internal organs due to narrow space, and trauma is caused is avoided.

This invention belongs to the field of biomedical technology, and relates to an in-situ foam gel containing exosomes, its preparation method, and its application. The raw materials for preparing the in-situ foam gel include an oil phase, a surfactant, surfactant auxiliaries, a gel matrix, a bioactive agent, exosomes, and a solvent. The surfactant includes any one or a combination of at least two of Tween 80, vitamin E polyethylene glycol succinate, or lecithin. The in-situ foam gel containing exosomes of this invention can form porous foam in situ within the uterine cavity, cervix, and vagina, and is used to prevent postoperative intrauterine adhesions, promote endometrial regeneration, and treat bacterial and mixed vaginitis, especially suitable for repair treatment after hysteroscopic surgery or curettage.