51 results about "Abdominal surgery" patented technology

The invention relates to an adjustable claw-type retractor for an abdominal surgery and an operation method. The adjustable claw-type retractor comprises a handle, a mounting disc, at least five retractor parts and an adjusting assembly, a cavity with an opening in the upper end is formed in the handle in the Z-axis direction. According to the adjustable claw-type drag hook for the abdominal surgery and the operation method, the connecting plate is moved up and down to drive the fastener and the buckle in the connecting plate to move, and when the fastener moves downwards, the two adjacent drag hook pieces can be expanded, so that the distance between the two adjacent drag hook pieces is increased; when the buckle moves upwards, the two adjacent draw hook pieces are close to each other under the action of elastic force, and the distance between the two adjacent draw hook pieces is reduced, so that the coverage range of the draw hook pieces can be effectively adjusted according to the taking-down of an incision, and the problems that more medical personnel are required to participate when a plurality of S-shaped draw hooks are used, and the operation is inconvenient are effectively solved. Certain inconvenience is brought to an operation, and normal operation of a surgeon is affected.

The invention discloses a sealing negative pressure protection device for abdominal cavity hyperthermic perfusion chemotherapy in laparotomy, and belongs to the technical field of medical instruments, the sealing negative pressure protection device comprises a protection cover body, the protection cover body is of a three-layer structure and sequentially comprises a porous breathable layer, a middle adsorption layer and a sealing supporting layer from inside to outside, and a circle of medical pressure-sensitive adhesive is arranged on the edge of the inner layer of the protection cover body; a negative pressure connector is arranged at the top of the protective cover body and used for being connected with external negative pressure equipment, two hanging rods are perpendicularly fixed to the inner layer of the protective cover body, telescopic supporting structures are fixed to the bottom ends of the two hanging rods, and a plurality of liquid inlet holes and liquid outlet holes are further formed in the protective cover body. The supporting assembly is integrated on the inner side of the protective cover body, and the problems that the compatibility of the surgical retractor and a sealing rubber strip on the edge of the protective cover body is poor, and gaps are likely to be generated are solved; by arranging the negative pressure connector and the middle adsorption layer, dual treatment of aerosol is achieved, and the occupational exposure risk of medical staff is reduced.

An air inlet, a smoke sensor, an air pump and an electromagnetic three-way air valve are sequentially communicated in series, and the electromagnetic three-way air valve is communicated with a filtering device and a low-pressure exhaust port; a pneumoperitoneum machine connecting port and an air outlet are respectively communicated with a second interface and a third interface of the three-way pipe; wherein the main control board is electrically connected with the smoke sensor and the electromagnetic three-way air valve respectively, and the main control board receives a signal of the smoke sensor and controls one end of the electromagnetic three-way air valve to be in a closed state, so that smokeless gas entering the smoke removal device is directly discharged from the air outlet; or the other end of the electromagnetic three-way gas valve is controlled to be in a closed state, so that the smoke gas is filtered by the filtering device and discharged at low pressure. Smoke detection is carried out through the smoke sensor, reversing of the three-way valve is controlled through the main control board, gas with different smoke concentrations enters different pipelines to be classified, and meanwhile the problem of multi-person cooperation in the smoke exhaust process is solved.

Apparatuses and methods for preventing the onset and / or progression of bowel edema during abdominal surgery and / or post-operative ileus are provided. The disclosed apparatuses comprise a structure for retracting the bowel during abdominal surgery and a means of applying negative pressure therapy to the bowel during abdominal surgery. Retracting the bowel provides unobstructed access to other regions of the abdominal cavity for the surgeon and the use of negative pressure therapy prevents the onset or progression of edema and / or ileus. Methods of preventing the onset or progression of edema and / or ileus are provided, comprising the deployment of the disclosed apparatuses and the application of negative pressure therapy.

The utility model is suitable for the technical field of abdominal surgery, and provides an extraperitoneal cavity dilator which comprises an operation end, the bottom of the operation end is in threaded connection with an inflation pipeline, a check valve is installed on the inner wall of the inflation pipeline, and a balloon dilator is arranged at the bottom of the inflation pipeline. The inflation pipeline is of a hollow cylinder structure and comprises a bent section used for bending, a reinforcing layer is arranged at the bottom of the bent section, and the check valve is arranged at the tail end of the reinforcing layer in the same direction. The check valve comprises an air cavity, the air cavity is formed in the middle section of the check valve, an air inlet is formed in one end of the air cavity, an air outlet is formed in the other end of the air cavity, the air inlet is formed in the end close to the bent section, and a check module is installed in the air cavity. According to the device, one-way flowing of gas is ensured through the non-return module, backflow and leakage are avoided, deflation can be achieved through the deflation rod, and operation stability and high adaptability are achieved.

1. The name of the design product: cannula (abdominal surgery). 2. The use of the design product: the design product is used to establish a surgical channel during laparoscopy and surgery. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention discloses an abdominal surgery image data analysis method and system, and relates to the technical field of data analysis of reinforcement learning, and the method comprises the steps: carrying out the feature classification of abdominal surgery image data, and obtaining an independent part representing each organ; carrying out feature decomposition on the abdominal surgery image data in each independent part through reinforcement learning, and constructing an association network between the independent parts according to a feature decomposition result; integrating the associated network into the knowledge graph between the independent parts to obtain a featured knowledge graph; in the featured knowledge graph, triggering a feature reaction through a variation mechanism; and performing data analysis according to the feature reaction to generate a final analysis result. According to the method, the analysis precision of the multi-organ image data is improved, the capabilities of feature decoupling, variation response modeling and focus recognition are achieved, and the clinical interpretability and application effectiveness of the analysis process are enhanced.

The invention relates to an artificial intelligence-based abdominal cavity operation auxiliary control method, device and equipment and a medium. The method comprises the following steps: acquiring kinematics data of the intelligent surgical instrument and physical data in contact with tissues; geometric-physical fusion correction is carried out on the input pressure to obtain effective clamping pressure, and a contact quality index is calculated; extracting multi-dimensional electrical characteristics and obtaining tissue type labels through an AI tissue classifier; a target working state is generated through verification of the neural finite-state machine; and during plasma cutting, the residual life of the liquid film is predicted through LSTM, and a corresponding control signal is generated. By adopting the method, the accuracy, the safety and the stability of auxiliary control of the abdominal surgery can be improved, and reliable support is provided for surgery development.

The present application belongs to the technical field of medical artificial intelligence auxiliary decision-making, and particularly relates to a method for predicting postoperative delirium risk of elderly abdominal surgery patients based on perioperative clinical characteristics. The present application extracts the demographic characteristics, preoperative laboratory indicators and intraoperative anesthesia-related characteristics of elderly abdominal surgery patients based on an electronic medical record system, and constructs a full-feature data set for postoperative delirium risk prediction. Further, a machine learning algorithm is used to establish a postoperative delirium risk prediction model, and the target model is screened in combination with the model stability evaluation result. On this basis, the model is optimized by using SHAP feature contribution analysis and recursive feature elimination strategy, and a simplified prediction model with fewer variables and better generalization performance is obtained. The prediction model can realize early identification of high-risk groups of postoperative delirium of elderly abdominal surgery patients during the perioperative period, has high discrimination ability, stability and clinical applicability, and can provide a reliable tool for precise prevention and auxiliary decision-making during the perioperative period.

The invention relates to the technical field of medical instruments, in particular to a disposable surgical drainage system with an image processing function, which comprises a drainage tube body, a visual component, a near-end connecting structure, a mobile terminal adaptation module and an AI image analysis module, the system aims at solving the technical problems that an existing medical drainage tube is single in function, depends on external imaging equipment for positioning in the implantation process and is prone to causing tissue damage during operation. The drainage tube is technically characterized in that a miniature 4K camera module and an LED lighting source are integrated at the tip of the drainage tube body, and tissue images in front of the tube end can be acquired and transmitted in real time; and the AI image analysis module is matched to complete lesion related parameter acquisition and property auxiliary discrimination. A doctor can directly observe a drainage path and a target area through external equipment and synchronously obtain auxiliary evaluation information. Accurate and safe catheter indwelling and auxiliary diagnosis are achieved. The device is mainly used for clinical drainage operations and bedside monitoring in neurosurgery, general surgery, thoracic surgery, cardiac surgery and abdominal surgery.

The present application belongs to the technical field of image processing, and discloses an intelligent auxiliary processing system for abdominal cavity operation images, which comprises a data acquisition module, a data processing module, an intraoperative lesion diagnosis module, an intraoperative lesion analysis module, a clinical decision module and a scheme regulation module. The data acquisition module is used for acquiring laparoscope 3D optical molecular image data, RAL imaging data and device operation data. The data processing module is used for obtaining a comprehensive feature data set by processing the acquired laparoscope 3D optical molecular image data, RAL imaging data and device operation data. The intraoperative lesion diagnosis module is used for constructing an intraoperative lesion diagnosis model and predicting an optical feature index. The intraoperative lesion analysis module is used for comparing the predicted optical feature index with a preset optical feature index threshold value and judging whether there is a lesion. The clinical decision module is used for constructing a lesion degree prediction model and predicting a lesion severity. The scheme regulation module is used for implementing a corresponding tumor treatment scheme according to the lesion severity.

The application discloses a flat link type incision opening device for abdominal surgery, which comprises a supporting rod, a stand, a fixing rod and an extension rod, a stand is vertically installed in the middle of the bottom end surface of the supporting rod, the inside of the stand is hollow, a lead screw is rotationally installed on each side wall of the stand, the lead screws are horizontally and symmetrically distributed, one end of each lead screw is rotationally connected with a first gear which is rotationally arranged in the inside of the lead screw, two groups of the first gears are oppositely arranged and synchronously rotate with the lead screws, a moving block is arranged on the outside of the lead screw, a moving rod is vertically installed on the upper surface of the moving block, the bottom of the moving rod is connected with the fixing rod and synchronously moves with the fixing rod, an extension rod is slidably arranged at the bottom of the fixing rod, and the extension rod is parallel to the fixing rod. The flat link type incision opening device for abdominal surgery has the advantages of convenient operation and effective response to sudden situations in surgery, and can be widely used.

The invention relates to an anti-fogging self-cleaning laparoscope which is characterized in that a transparent glass sheet is fixedly arranged at the outer end of an objective lens at the far end of the laparoscope, and a closed carbon dioxide gas groove is formed in a gap between the transparent glass sheet and the objective lens; an air inlet pipeline is fixed along the inner wall of an outer tube of the laparoscope, a corresponding air inlet hole is formed in the near end of the air inlet pipeline, and the far end of the air inlet pipeline penetrates through the objective lens and extends into the carbon dioxide gas groove; a gas outlet pipeline is fixed along the inner wall of the outer tube of the laparoscope, the far end of the gas outlet pipeline extends into the carbon dioxide gas groove, and the near end of the gas outlet pipeline exhausts gas through a gas exhaust hole; and the air inlet is externally connected with a carbon dioxide air source. The laparoscope solves the technical problems that an existing laparoscope is prone to causing fogging of an objective lens and infection of tissue fluid in a minimally invasive abdominal surgery, consequently, the surgical field is blurred, and surgical operation needs to be interrupted due to the fact that a real-time processing function does not exist.

The present invention relates to the field of medical materials, and more specifically, to a process for producing a high-drug-loaded antibacterial biological patch with controlled sustained release. Unlike conventional coating structures, the effective antibacterial components of the antibacterial patch of the present invention are distributed throughout the patch structure network, rather than being confined to a single layer. This not only ensures that the resulting patch possesses excellent mechanical properties and a structure that resists loosening upon contact with water, but also enhances process stability. Furthermore, the drug loading amount and loading speed can be quantitatively and controllably adjusted according to actual needs. This method can be applied to various surgical scenarios, such as open abdominal surgery, and is particularly suitable for immediate antibacterial use after surgical procedures. It not only facilitates anti-infection, but also guides tissue regeneration and degrades as tissue repair progresses.

The utility model discloses an operation drape for an abdominal operation, relates to the technical field of medical auxiliary supplies, and aims to solve the technical problem that an operation hole is easy to displace under the action of falling force of a liquid collecting bag when the current operation drape for the abdominal operation is used, the operation drape comprises a drape main body, and the operation hole is formed in the drape main body. Through the designed fixing structure, when the drape body is used, the bottom gasket of the fixing structure is cushioned under the body of a patient, then the drape body covers the body of the patient, the operation hole corresponds to an abdominal operation area of the patient, and then the side connecting pieces, located on the two sides of the operation hole, at the bottom of the drape body are connected with the bottom gasket in a tensioning mode. At the moment, the elastic belt can be tightly attached to the skin of the patient, so that the stability of the operation hole in the abdominal operation area of the patient can be guaranteed, the situation that the operation hole displaces due to the falling force of the liquid collecting bag can be effectively avoided, and the integrity of a sterile area is guaranteed.

The invention discloses a suction device for abdominal surgery, and belongs to the field of abdominal surgery. Comprising a mounting plate, a vacuum pump is arranged below the mounting plate, a first L-shaped support is fixedly connected to the left of the upper surface of the mounting plate, a vacuum plug is slidably connected to the inner side of the right end of the first L-shaped support, and a communicating pipe fixedly communicates between the vacuum plug and the output end of the vacuum pump; a second L-shaped support is fixedly connected to the right side of the upper surface of the mounting plate, and a suction plug is arranged on the inner side of the left end of the second L-shaped support. In the aspects of movement and adjustment, universal wheels at the bottom of the device are matched with a hand-held push rod, so that the overall movement becomes flexible and convenient, and the position requirements of different operation scenes can be quickly met; the electric push rod can flexibly adjust the distance between the mounting plate and the bottom plate, so that the overall height of the device is adjusted, the requirements of different surgical operation heights are met, and the adaptability of the device in the surgical environment is greatly improved.

The invention discloses a telescopic abdominal surgery retractor device, relates to the technical field of medical instruments, and adopts the technical scheme that the telescopic abdominal surgery retractor device comprises an adjustable mounting seat, a range adjusting structure, an angle adjusting structure and a traction part. The adjustable mounting seat comprises a clamping seat, a cross rod, a middle vertical plate and the like, so that stable mounting and horizontal position adjustment of the device are realized; the range adjusting structure drives a screw rod and a gear to transmit through a motor, and adjusts the height and the horizontal transverse position of the traction piece; the angle adjusting structure adjusts the angle of the traction piece through worm and gear transmission. The traction piece and the mounting table are detachable, the traction piece is sleeved with the silicon rubber sleeve, and the electric hydraulic telescopic rod accurately controls the traction distance. The device is provided with a display control device, and parameters can be displayed in real time and automatically controlled. The device is large in telescopic range, high in precision, flexible to adjust, capable of protecting surgical tissues and convenient to disinfect, the problems that an existing retractor is large in labor intensity, unstable in view field and prone to causing tissue damage and cross infection are effectively solved, and surgical convenience and safety are improved.

The invention belongs to the field of blood oxygen monitoring, and provides a blood oxygen monitoring device and method arranged on the back of the human body, the blood oxygen monitoring device comprises a pressure sore prevention plate, an optical probe is installed on the pressure sore prevention plate, the optical probe comprises a shell, at least one LED light source capable of emitting light of at least two different wavelengths is installed on the shell, and the LED light source is connected with the pressure sore prevention plate. The shell is further provided with at least two photosensitive sensors arranged around the LED light source at different distances. The optical probe is further provided with a flexible connector used in cooperation with the LED light source and the photosensitive sensors. According to the device, the pressure sore prevention plate is arranged on the contact surface of the optical probe and the skin, so that the device can effectively collect blood oxygen signals in the long-time monitoring process, skin injury is avoided, and the device is particularly suitable for back blood oxygen monitoring in an abdominal surgery.

The invention provides an intelligent remote visual modular drainage system and method for an abdominal surgery, belongs to the field of medical instruments, and solves the problems that an existing drainage system is delayed in monitoring, lacks an early warning function and is poor in accuracy. Wherein the drainage tube is connected with the drainage container; the negative pressure assembly can provide a negative pressure environment for the drainage container, the flushing assembly is communicated with the drainage tube, and the multi-mode sensor group can detect the liquid level, conductivity, turbidity, transparency and optical reflection spectrum characteristics of drainage liquid in the drainage container; the visual probe and the annular LED lamp are arranged at the front end of the drainage tube; the wireless transmission device can transmit data of the multi-mode sensor group and the visual probe to the mobile phone terminal APP, the mobile phone terminal APP can judge the type of drainage liquid according to the conductivity, turbidity, transparency and optical reflection spectrum characteristics of the drainage liquid, and the drainage assembly and the flushing assembly can be controlled through the mobile phone terminal APP. Remote monitoring and control can be achieved, timely early warning is achieved, and accuracy is high.

The invention relates to an abdominal surgery video triple recognition method based on text semantic enhancement. The method comprises the steps of designing a text prompt and extracting features of the text prompt to obtain text feature representation; an image encoder is adopted to extract image coding features of the abdominal cavity operation video frame image, and triple features are output from the image coding features through a bottleneck layer; based on a designed ternary decoupling attention module, image coding features are decoupled into instrument features, action features and target tissue features; fusing the triple features, the instrument features, the action features and the target tissue features to obtain image feature representation; fusing the text feature representation and the image feature representation to obtain an image feature after text enhancement; training a time convolutional network based on the text-enhanced image features to obtain a trained time convolutional network; obtaining a second image feature representation of the to-be-identified abdominal cavity operation video frame image; and inputting the second image feature representation into a trained time convolutional network to obtain a triple classification result.

The utility model relates to the technical field of medical instruments, and discloses an intraoperative auxiliary fixing bracket for abdominal surgery, which comprises a mounting frame provided with two groups of accommodating grooves, the top of the mounting frame is connected with a back tray through a hinge shaft, a supporting mechanism is arranged in the accommodating groove on one side of the mounting frame, and the back tray is connected with the mounting frame through a hinge shaft. The supporting mechanism is composed of a fixing assembly and a supporting assembly, the fixing assembly comprises a fixing block, the top of the fixing block is fixedly connected to the bottom of the back tray, an inclined rod is hinged into a groove in the bottom of the fixing block, a connecting block is hinged to the other end of the inclined rod, and sliding grooves are formed in the two sides of the inner wall of the mounting frame. According to the supporting device, under the action of the sliding frame and the touch block, the back and the armpits of a patient are supported during the abdominal surgery, the weight of the chest area of the patient is shared, meanwhile, the two arms are slightly expanded, and it is ensured that the patient keeps the correct and stable body position in the surgery process.

The present invention belongs to the field of medical device technology, and in particular relates to a short-range open ultrasonic scalpel center rod. The present invention comprises a scalpel body, on which a first center rod segment, a second center rod segment, a third center rod segment, a fourth center rod segment, a fifth center rod segment, and a sixth center rod segment are provided. The sixth center rod segment is connected to the scalpel body, the first center rod segment is provided with a primary amplitude amplification structure, the second center rod segment is provided with an amplitude reduction control structure, the third center rod segment is provided with a slowdown transition structure, and the fourth center rod segment is provided with an amplitude expansion structure. The present invention is applied to open abdominal surgery, using a short-range center rod. By providing a primary amplitude amplification structure, an amplitude reduction control structure, a slowdown transition structure, an amplitude expansion structure, a conduction structure, and a high-amplitude output structure, the center rod emission response is reduced by 8 to 12 dB, thereby significantly reducing the center static impedance and achieving instantaneous tissue dehydration and coagulation.

This invention discloses a retrieval device for gynecological abdominal surgery, belonging to the field of surgical instrument technology. The main body of the retrieval device consists of a control end, a retrieval end, and a cutting end. The cutting end includes a cutting seat with a storage groove at its end. A surgical knife is connected to the inner wall of the storage groove via a telescopic storage component. The retrieval end includes an extension column with an electromagnetic seat fixedly connected to its end. A permanent magnet seat is connected to the end of the cutting seat. The permanent magnet seat and a limiting ring are connected by multiple elastic retrieval cage bars. This invention is designed for abdominal surgery. By setting multiple elastic retrieval cage bars between the cutting seat and the extension column, the distance between the cutting seat and the extension column can be changed through the cooperation between the inner shaft column, the electromagnetic seat, and the permanent magnet seat. This allows control of the multiple elastic retrieval cage bars to bend and form a "cage". By changing the current of the electromagnetic seat, the diameter of the "cage" structure can be adjusted, thereby facilitating the removal of lesions of different sizes and simplifying the surgery.

The invention discloses an electric hook executing end combined machining device for abdominal surgery, and belongs to the field of assembly machining, the electric hook executing end combined machining device comprises an electric hook executing end and an assembly supporting table provided with a laser welding unit, and the electric hook executing end comprises an electric coagulation hook, a conducting rod, a rubber heat-resisting sleeve and an insulating handle sleeve; the assembling supporting table is provided with a self-integration machining unit for conveying the electrocoagulation hook, an automatic sleeving and combining unit for sleeving and feeding rubber heat-resisting sleeves and a positioning and pushing unit for installing and combining insulating handle sleeves and conducting rods. Through flexible clamping adjustment of the clamping end seat, the orientation of the electrocoagulation hook is automatically adjusted in advance under the action of gravity, the electrocoagulation hook is automatically adjusted to be parallel to the direction of a positioning range-limiting opening in the rotating process in combination with the positioning range-limiting opening structure, it is ensured that the angle of the electrocoagulation hook can be kept consistent in the assembling process, and the assembling efficiency is improved. The absolute consistency of the relative angle with the insulated handle sleeve is ensured, and the standard identification requirement of the robot on the instrument direction is met.

According to the technical scheme, the surgical drape comprises a first drape body, the two sides of the first drape body are fixedly connected with a second drape body and a third drape body respectively, a first surgical hole is formed in the middle of the first drape body, a reinforcing piece covers the first surgical hole, and a second surgical hole is formed in the middle of the reinforcing piece. The surgical drape has the advantages that by the adoption of the structure of the surgical drape, only one piece of non-woven fabric needs to be provided with the surgical holes and cover the reinforcing piece, the surgical holes are integrally formed, the production process of the surgical drape is simplified, the production cost is reduced, the defective rate is reduced, and the stability of product quality is improved; meanwhile, the strength of the first surgical hole of the surgical drape is improved, and the probability that the first surgical hole is broken is reduced.

The invention discloses a drainage puncture outfit for an abdominal surgery, and relates to the technical field of medical instruments, the drainage puncture outfit comprises a puncture tube, an inner sleeve and an outer sleeve, a tubular cavity is formed between the outer sleeve and the inner sleeve, a matching rubber sleeve is adjustably mounted in the tubular cavity, a sealed space is formed between the matching rubber sleeve and the upper end of the tubular cavity, and the sealed space is connected with an air valve. The matching rubber sleeve is connected with a rubber sleeve, the rubber sleeve extends to the bottom end of the tubular cavity and is connected with a positioning air bag, the positioning air bag penetrates out of the tubular cavity and then is turned outwards to be connected to the outer side of the outer sleeve in a sleeving mode, multiple sets of air guide rubber pipes are evenly distributed between the matching rubber sleeve and the rubber sleeve, and the ends of the air guide rubber pipes extend into the positioning air bag. A positioning rubber ring is sleeved on the outer sleeve; the position of the positioning air bag on the outer sleeve is adjusted by adjusting the position of the matching rubber sleeve in the tubular cavity, and the drainage puncture outfit is conveniently adjusted and fixed according to the thickness of the abdominal cavity wall and the drainage depth.

The invention relates to the field of medical instruments, in particular to an anti-leakage protection device for an intestinal anastomotic stoma after an abdominal operation. The casing-like body is in a tubular shape, and the casing-like body part can be folded in half to form a folding cavity; the positioning piece is used for sealing at least part of the opening side of the folding cavity, so that the clamping ring is limited in the folding cavity, and meanwhile, the similar casing is fixed in the intestinal tract. According to the intestinal tract anastomotic stoma anti-leakage protection device, when the intestinal tract anastomotic stoma anti-leakage protection device is placed in the intestinal tract, the folding cavity is sealed through the positioning piece so that the clamping ring can be limited in the folding cavity, meanwhile, the similar casing is fixed in the intestinal tract, displacement of the similar casing caused by peristalsis of the intestinal tract is avoided, and the effectiveness of protection is guaranteed.

1. The name of the design product: abdominal puncture cannula assembly. 2. The use of the design product: the design product is used to provide a surgical channel and fascia suture in abdominal surgery. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention belongs to the technical field of medical instruments, and particularly relates to a single-channel abdominal surgery incision protection device. In order to solve the problem that in the prior art, a puncture guide seat and an incision protection sleeve of an instrument applied to a single-port abdominal surgery are not stably connected, the single-channel abdominal surgery incision protection device comprises the incision protection sleeve and the puncture guide seat, and the incision protection sleeve and the puncture guide seat are connected through a connecting assembly. The connecting assembly comprises a locking piece and a locking ring made of rigid materials, the locking piece is rotationally connected to the outer side of the end of the incision protection sleeve, the locking ring is embedded in the end, close to the incision protection sleeve, of the puncture guide base, one end of the locking piece can be pressed on the locking ring by rotating the locking piece, and the other end of the locking piece can be pressed on the other end of the puncture guide base. And the inner wall of the puncture guide seat is pressed on the outer wall of the incision protection sleeve. And stable connection of the incision protection sleeve and the puncture guide seat is realized. The invention further provides a lifting device, and the mode of adjusting the length of the instrument channel in the incision protection sleeve is optimized.