60results about How to "Reduce secondary damage" patented technology

This invention discloses a multi-level redundant protection elevator anti-overshoot and anti-fall composite braking and buffer system, including a guide rail electromagnetic adsorption braking module, a directional airflow damping deceleration module, a robotic arm-type safety airbag buffer module, a working condition detection unit, and an intelligent control and power supply redundancy module. The guide rail electromagnetic adsorption braking module includes excitation coils, insulated fixing brackets, and segmented switch units arranged in sections along the elevator's T-shaped vertical guide rail. The directional airflow damping deceleration module includes directional air supply modules and segmented airflow ducts installed at the top of the elevator shaft and on the vertically segmented side walls of the shaft. The robotic arm-type safety airbag buffer module is embedded in the lower surface of the elevator shaft's top floor slab. The working condition detection unit integrates a car speed sensor, a position encoder, a load acquisition unit, an acceleration monitoring unit, an overshoot / undershoot limit prediction switch, and an airbag trigger distance sensor. This invention integrates a three-level progressive protection structure to achieve flexible protection throughout all working conditions and the entire travel distance.

The utility model discloses a sterilization device for sea-buckthorn primary pulp, which comprises a sterilization heating box, two heat insulation plates are welded in the middle of an inner cavity of the sterilization heating box, the inner cavity of the sterilization heating box is divided into three continuous spaces, namely a heating cavity, a connecting cavity and a sterilization cavity, and a spiral heating pipe is fixedly mounted in the heating cavity; and a spiral sterilization pipe is fixedly mounted in the sterilization cavity. According to the utility model, the temperature of primary pulp is raised to 90 DEG C in a short time through the spiral heating pipe, so that the heating efficiency is improved; microorganisms in the primary pulp are fully killed through the spiral sterilization tube, and heat-sensitive nutritional ingredients are prevented from being damaged by high temperature for a long time; rapid cooling of the primary pulp is achieved through the cooling pipe, and secondary damage to nutrition caused by continuous heat action is reduced; the multiple temperature sensors monitor the temperature in the heating, sterilizing and cooling stages in real time, the feeding speed, the water suction pump power, the heater temperature and the semiconductor refrigeration power are dynamically adjusted in combination with the industrial computer, and whole-process precise temperature control is achieved.

The invention relates to the technical field of the building industry, and discloses a fabricated steel structure and an installation method, the fabricated steel structure comprises frame columns and frame beams, and the frame columns and the frame beams are connected in a matched mode; the modular node units are detachably connected with the frame columns and the frame beams respectively; the modularized joint unit comprises a first connecting plate and a second connecting plate, the sides, deviating from each other, of the first connecting plate and the second connecting plate are suitable for being connected with one ends of the adjacent frame columns correspondingly, and a box type steel column section is arranged between the first connecting plate and the second connecting plate; the two ends of the box type steel column section are connected with the first connecting plate and the second connecting plate correspondingly. The modularized joint units are further provided with I-shaped steel beam ends, and the two I-shaped steel beam ends are connected with the two ends of the box type steel column section respectively in the extending direction of the frame beam.

This application discloses a method, apparatus, equipment, vehicle, and medium for under-vehicle rescue. The method includes: acquiring images of the underside of the vehicle, images of the surrounding area, real-time vehicle speed, and vehicle posture data; determining, based on the under-vehicle images, whether a foreign object exists under the vehicle and the target location of the foreign object; in response to the determination that a foreign object exists, identifying the type of foreign object based on the under-vehicle images, real-time vehicle speed, and vehicle posture data; and determining a rescue strategy for lifting at least one independent suspension of the vehicle based on the type of foreign object, the target location, and the surrounding images. The technical solution of this application avoids blind operation by rescue personnel, significantly shortens rescue preparation time, and improves rescue efficiency. It enhances the adaptability and flexibility of the vehicle in complex rescue environments, improving the success rate and safety of rescue operations.

The invention belongs to the technical field of gastroscope sharp foreign body taking-out devices, and particularly discloses a multi-form adjustable gastroscope sharp foreign body taking-out auxiliary device which comprises a gastroscope head tube, one end of the gastroscope head tube is sleeved with a transparent tube cap, and folding rubber bags are evenly and fixedly installed on the outer surface of an auxiliary connecting end. According to the multi-form adjusting sharp foreign matter taking-out auxiliary device for the gastroscope, after the gastroscope lens tube is fed into the body of a patient and a sharp foreign matter is clamped, endoscope foreign matter forceps can be pulled to enable the sharp foreign matter to be close to the auxiliary connecting end, then air can be injected into the folding rubber bag through the ventilation channel, and the sharp foreign matter can be taken out through the ventilation channel. The folding rubber bag can be gradually expanded and expanded through air injection so as to shield the clamped sharp foreign matter, the sharp foreign matter cannot scratch the interior of the digestive tract of a patient in the taking-out process, secondary damage caused by the sharp foreign matter is reduced, and the comfort degree of the patient after the foreign matter is taken out is improved.

The disposable bed sheet comprises a medical bed sheet body, the medical bed sheet body is of a multi-layer composite structure and comprises a surface layer making contact with the skin of the patient, a middle absorption layer and a bottom supporting layer, the two sides of the bottom supporting layer extend outwards to form side curtains, and hand grab through holes are formed in the side curtains. The side curtains and the gripper through holes are arranged, so that nursing medical staff can carry a patient conveniently, meanwhile, the side curtains are located at the gravity center position of the waist of the patient, the waist of the patient can be wrapped by the side curtains in the carrying process, the patient is flexibly fixed, and secondary injuries caused by carrying displacement of the patient are reduced; the medical bed sheet body is of a multi-layer composite structure, so that the medical bed sheet not only can meet the postoperative cleaning requirement of a patient, but also can transfer the patient.

The present application belongs to the technical field of transfer bed, and relates to a self-balancing transfer bed suitable for slope terrain. The self-balancing transfer bed comprises a bed frame, four moving legs with rectangular distribution are installed on the bed frame, an upper side of the bed frame is provided with a bed plate, the bed plate is slidably connected with a support frame, the support frame is provided with symmetrically distributed first fixing belts, the support frame is provided with symmetrically distributed second fixing belts, the second fixing belts are used for fixing shoulders of a patient, an adjusting assembly is arranged on the bed frame, a second adjusting assembly and symmetrically distributed first adjusting assemblies are arranged on the support frame. The first fixing belts and the second fixing belts are used for simultaneously applying restrictions to thighs and shoulders of the patient in two directions perpendicular to each other, so that the patient remains stable during the process of transferring the patient, the probability of secondary injury to the spine of the patient due to shaking during the process of transferring is reduced, and the safety of the patient is improved.

The utility model belongs to the field of medical instruments, and discloses a nursing bed back massage regulation and control device which comprises a bed frame and a bed board assembly and further comprises telescopic supporting legs, the telescopic supporting legs are arranged at the bottom end of the bed board assembly, and the bed board assembly comprises a foot bed board, a leg bed board, an abdomen bed board and a back bed board which are sequentially arranged from left to right. The foot bed board and the leg bed board are connected through a first hinge seat, the leg bed board and the abdomen bed board are connected through a second hinge seat, the abdomen bed board and the back bed board are connected through a third hinge seat, a through hole penetrating through the back bed board vertically is formed in the top end of the back bed board, and a back massage cushion is arranged at the through hole of the back bed board. The hydraulic telescopic rod pushes the torque arm to drive the first rotating shaft to rotate, then the rotating arm is driven to rotate, the back bed plate is turned over under the action of the rotating arm, and the rotating arm drives the push plate to rotate through the second rotating shaft to support the waist of a patient. And the secondary injury caused by the force applied by the patient in the lying or sitting process is reduced.

The utility model discloses a cooling liquid collecting cover for a plant negative pressure extractor, which relates to the technical field of plant extraction and comprises a hinge, an extraction box for extracting plant juice under negative pressure is arranged on the hinge, and the cooling liquid collecting cover further comprises a covering mechanism connected with the hinge, a covering mechanism is arranged in the extraction box and used for opening or closing the extraction box and cooling extraction steam, the covering mechanism comprises a fixing ring fixedly connected with the hinge, an arc-shaped cooling shell is fixedly connected to the lower portion of the fixing ring, a hollow shell is fixedly arranged on the upper portion of the fixing ring, and a cooling component is arranged in the hollow shell. And the cooling part is used for cooling the arc-shaped cooling shell, a fixing plate is integrally arranged on the hollow shell, and air holes are formed in the fixing plate. The cooling liquid collecting cover for the plant negative pressure extractor is convenient for condensing plant extraction steam extracted at high temperature, so that the plant extraction efficiency is improved.

The present application relates to the technical field of rescue stretcher, and discloses a multifunctional high-stability emergency rescue intelligent stretcher, which comprises a stretcher, a reinforcing plate is fixedly connected to the surface of the stretcher, a handle is fixedly connected to the end of the reinforcing plate, a recess is formed in the end of the stretcher, a back strap is fixedly connected to the inner wall of the recess, a positioning groove is formed in the top of the stretcher, and an intelligent life monitoring device is arranged on the inner wall bottom of the positioning groove. When the stretcher needs to be moved, the rescuer lifts up the stretcher by the handle and carries it; when the stretcher needs to be moved on the road, the electric push rod is started to move downward, the circular hole frame is pushed downward by the extrusion plate when the electric push rod moves downward, the circular hole frame rotates downward on the surface of the cylindrical frame when the circular hole frame moves downward, the elastic frame is driven to rotate downward by the rotating rod when the cylindrical frame rotates downward, the universal wheel is in contact with the road surface after the bottom of the cylindrical frame drops, at this time, the stretcher can be pushed to move on the road surface, and the stretcher is supported by the elastic frame.

This invention provides a coal and gangue separation method and system based on terahertz technology, belonging to the field of coal and gangue separation technology. The system includes a vibrating screen module, a material arrangement module, a material conveying module, a terahertz signal acquisition module, a terahertz imaging acquisition module, a computer processing module, and a separation control module. Raw coal, after pre-treatment by vibrating screen, is conveyed to the material conveying module. During conveying, the signal acquisition module and the imaging acquisition module acquire the terahertz time-domain spectral data and terahertz imaging data of the material, respectively. The computer processing module fuses the terahertz time-domain spectral data and imaging data to achieve the identification, real-time detection, and positioning of coal and gangue, and transmits the relevant information to the separation control module, which drives the corresponding slide plates to complete the coal and gangue separation process. This invention can safely, effectively, and comprehensively identify and separate coal and gangue, providing a feasible technical path in the field of coal and gangue separation technology.

The present application relates to a kind of bubble drinks for high uric acid population, production method, equipment, belong to functional food processing technical field.It includes the following weight parts of component: acid-eliminating composition extract: 6 to 9 parts by crude drug amount;Alkalization acid-eliminating regulator: 0.9 to 1.5 parts;Natural sweet and functional agent: 0.5 to 6 parts;And the balance of water;Acid-eliminating composition extract is prepared from chicory, tuckahoe and gardenia;Alkalization acid-eliminating regulator is composed of food-grade sodium bicarbonate and citric acid, both are reacted in water to generate sodium citrate buffer pair, and the mass ratio of citric acid and sodium bicarbonate is 1:(1.2-2.0), and the final pH of the bubble drink is 6.2-6.8.Utilize the sodium citrate buffer generated by alkalization acid-eliminating regulator reaction, fundamentally resolve uric acid crystallization, prevent uric acid kidney stone.Combined with acid-eliminating composition extract, physiological level of synthesis inhibition and excretion promotion and physicochemical level of urine alkalization and solubility promotion are realized.

The invention relates to the technical field of video intubation laryngoscopes, and discloses a general video intubation laryngoscope for rats and mice, which comprises a base, a placement mechanism is arranged at the top of the base, a mounting mechanism is arranged at the top of the placement mechanism, an intubation mechanism is arranged at the top of the mounting mechanism, and the mounting mechanism comprises a laryngoscope handle. The mirror handle is fixedly connected to the top of the placement mechanism, a charging interface is formed in the left side of the mirror handle, a display screen is fixedly connected to the interior of the mirror handle, a power module is fixedly connected to the left side of the interior of the mirror handle, a storage module is fixedly connected to the interior of the mirror handle, and a processing module is fixedly connected to the right side of the interior of the mirror handle. By means of the installation mechanism, when intubation work is carried out, the intubation time can be greatly shortened, the intubation success rate is increased, unnecessary auxiliary injuries are reduced, tracheotomy caused by multiple times of intubation or intubation failure is prevented, and meanwhile a display screen is arranged at the position of the endoscope handle, so that the content shot by the camera is easy to observe.

This invention discloses a high-temperature acid-responsive degradable microencapsulated acid for acid fracturing and its preparation method, belonging to the technical field of chemical materials for acid fracturing in oil and gas fields. The high-temperature acid-responsive degradable microencapsulated acid for acid fracturing includes an acid core and a microcapsule shell encapsulating the acid core. The microcapsule shell is made of a high-temperature acid-responsive degradable polymer material, which is polymerized from five monomers: acrylamide, tert-butyl methacrylate, 2-acrylamide-2-methylpropanesulfonic acid, diallylamine, and allyl polyoxyethylene ether. The microencapsulated acid of this invention can achieve delayed acid release and shell degradation in high-temperature acid solutions, effectively reducing reservoir damage caused by shell residue while ensuring etching capability. It also exhibits strong temperature and shear resistance, making it suitable for acid fracturing operations in high-temperature / ultra-high-temperature carbonate reservoirs.

The utility model belongs to the technical field of shell inserting machine assembly, and particularly relates to an automobile wire harness shell inserting machine inner shell buckle preassembling mechanism which comprises a first supporting frame, a supporting seat is fixedly arranged on the upper side wall of the first supporting frame, and an inner shell buckle flat rotating mechanism bottom plate is arranged at the upper end of the supporting seat. By means of the design, inner shell buckles are evenly moved in the inner shell buckle feeding guide rail, an outer shell is evenly moved on the outer shell feeding guide rail, the inner shell buckles are arranged at the upper end of the outer shell, the inner shell buckles are arranged on the inner shell buckle feeding guide rail, and the inner shell buckles are arranged on the outer shell feeding guide rail. And finally, through the cooperation of an inner shell buckle pressing cylinder and an inner shell buckle pushing rod, the inner shell buckle is clamped in the outer shell, so that the design structure can be greatly simplified, the assembling stability of the inner shell buckle is improved, the secondary damage of the terminal is reduced, the production efficiency is improved, and the manufacturing cost of equipment is reduced.

The utility model discloses a visible puncture sampling needle, which relates to the technical field of medical sampling needles and comprises a control shell and a sampler extending into a focus, the control shell is integrally formed by semi-cylinders at two ends and a middle trapezoidal block, the inner diameters of the semi-cylinders at the two ends are unequal, the semi-cylinders are respectively connected with two ends of the trapezoidal block, and the sampler is in a slender cylinder shape. The front end part of the sampler is provided with a sampling port used for cutting and sampling a focus, and an endoscope lens convenient for visualization is embedded in the top end position of the front end part of the sampler. According to the scheme, the focus position can be directly observed, a sampling needle can conveniently go deep into the focus position for sampling, additional guiding equipment is not needed, and the operation is simple and convenient. And the endoscope lens and the sampling needle are integrated together, so that a big-end-down operation channel does not need to be established in the traditional operation process, minimally invasive operation is realized, and secondary injury to a patient is reduced.

This utility model relates to the field of motor technology, specifically to a modular motor, which includes a first housing; a second housing detachably connected to the outer periphery of the first housing, the first and second housings together forming an annular receiving cavity; a stator fixedly connected to the outer contour of the first housing and located within the receiving cavity; a rotor rotatably disposed radially on the outer side of the stator assembly and electromagnetically coupled to the stator; and a cage rotatably connected to the bottom of the first housing, with the rotor fixed to the top edge of the cage. This application improves the ease of disassembling the motor housing. When an internal fault occurs in the motor, maintenance personnel can easily disassemble the second housing to directly observe and handle the faulty part without the need for overall disassembly or destructive removal of the housing, saving manpower and time costs, shortening the maintenance cycle, reducing secondary damage to other intact components, reducing maintenance difficulty and cost, and improving the reliability and service life of the motor.

The application discloses a construction anti-falling protection net, which comprises a rectangular fixed frame, an inner side wall of the rectangular fixed frame is fixedly connected with a protection net, a floating type support assembly is fixedly arranged at the bottom surface of the rectangular fixed frame, and the floating type support assembly can move downward when the protection net is impacted, and an anti-rebound assembly is arranged to solve the problem that common anti-falling protection nets are elastic and rebound after being impacted, thus causing secondary injury.

The invention relates to the technical field of auxiliary hemostasis devices, and discloses an emergency auxiliary hemostasis device for a blood coagulation dysfunction patient, which comprises a fixing plate I, a drug delivery mechanism arranged on the inner side of the fixing plate I, a compression mechanism arranged at the bottom of the fixing plate I, and a fixing mechanism arranged on the inner side of the fixing plate I, the fixing mechanism is arranged at the bottom of the first fixing plate, and the dosing mechanism comprises a hemostasis assembly. According to the hemostasis device, the hemostasis assembly is arranged, specifically, when a rotating sleeve rotates, a rotating ring is driven to rotate, a first sliding rod at the bottom of the rotating sleeve slides in a sliding groove, a sliding plate is pushed to be separated towards the two sides along a sliding rail, a second fixing plate extrudes a telescopic rod and a first spring, medicine in a fixing sleeve is released, and after releasing is completed, the rotating sleeve is loosened; under the elastic reset action of the telescopic rod and the first spring, the second fixing plate and the sliding plate are close to each other, the bottom of the fixing sleeve is closed, the utilization efficiency of hemostatic medicine is improved, and a hemostatic environment is rapidly formed.

This invention provides a partially detachable orthopedic splint, belonging to the field of medical device technology. It includes a positioning and adjustment structure, and splint fixing structures located at both ends of the positioning and adjustment structure. Auxiliary positioning structures are provided on both sides of the splint fixing structure. By using the splint fixing structure in conjunction with the auxiliary positioning structures, during dressing changes, rotating the telescopic ring causes the two splints to move away from each other through the adjustment frame and support arm. This exposes the wound surface at the splint-covered area of ​​the fracture. Simultaneously, as the two adjustment frames move continuously, the two longitudinal sleeves move closer together, causing the positioning ring frames on both sides to move closer together, fixing the upper and lower sides of the limb fracture site. This ensures that while the wound surface is being cleaned and dressing changed, the ends of the fractured limb still have fixing structures supporting the original fixation position, greatly reducing the problem of secondary bone damage during debridement.

The present application relates to a kind of rock platform pre-reinforcement blasting construction method, comprising the following steps: obtaining rock platform pre-reinforcement parameters, and based on rock platform pre-reinforcement parameters, establish rock platform pre-reinforcement model;Based on rock platform pre-reinforcement model, excavate construction area to form working face;First hole site is drilled in working face, which penetrates reserved protective layer and extends into rock platform pre-set depth;Stop slurry isolation device is set at free section, and anchor rod is installed at first hole site, and free section of anchor rod is located in reserved protective layer;Grouting is carried out at anchoring section of anchor rod, forming grouting anchoring section, and anchoring section of anchor rod is located in rock platform;Reserved protective layer is blasted;After blasting, reserved protective layer is cleaned, and rock platform is accepted.The above-mentioned rock platform pre-reinforcement blasting construction method improves the forming face rock platform blast resistance from inside, effectively reduces the secondary damage of protective layer blasting, and effectively maintains the integrity and flatness of profile after blasting.

The application relates to the technical field of medical devices, and particularly discloses a minimally invasive blood vessel suturing device. In order to solve the problem that the outer diameter of a conventional suturing device entering a blood vessel is relatively large, a'second expansion' is caused to the blood vessel wall, and tissue damage is aggravated, the device comprises a holding part, a sheath pipe, a fixed end head, a suturing rod, a deformation assembly and a driving mechanism, one end of the sheath pipe is fixedly connected with the holding part; the fixed end head is fixed in the inner cavity of the end of the sheath pipe away from the holding part; the suturing rod is fixedly connected with the end of the fixed end head away from the sheath pipe and extends out of the sheath pipe, the diameter of the suturing rod is smaller than that of the fixed end head, and the outer diameter of the part of the suturing rod entering the blood vessel is not greater than 7 French; the deformation assembly is arranged on the suturing rod and is used for unfolding and abutting against the inner wall of the blood vessel after the suturing rod is inserted into the blood vessel; and the driving mechanism is arranged in the holding part and is used for driving the deformation assembly to unfold or fold. The application can reduce the secondary damage to the blood vessel puncture port.

The utility model discloses a shovel type medical stretcher with an adjustable function, and relates to the technical field of medical instruments. The device comprises a frame body, two symmetrical first mounting plates are fixedly arranged on the inner side of the frame body, mounting grooves are formed in one sides of the two first mounting plates, the same extension frame is slidably connected between the two mounting grooves, a second mounting plate is fixedly arranged on the inner side of the extension frame, and two symmetrical arc-shaped plates are integrally formed on the surface of the second mounting plate. And a plurality of adjusting grooves are formed in one side of each arc-shaped plate. The position of the positioning pipe can be adjusted according to the condition of the head of a patient, the head of the patient is prevented from shaking in the transferring process, the medical nursing bed is suitable for patients with different body types, and the angle of the head of the patient can be adjusted at a preset angle according to the conditions of the patients with different injury conditions; the optimal body position of the patient can be effectively maintained in the transferring process, secondary injury is reduced, and the treatment efficiency is improved.

The application discloses a kind of pre-embedded pipe earth-rock dam cutoff wall structure and defect detection and repair method, "U-shaped" flower pipe is pre-embedded in cutoff wall and is evenly arranged along cutoff wall axis, and flower pipe is filled with colored dye agent;Through dam body seepage pressure monitoring, colored dye agent migrates with seepage and dam downstream water weir seepage flow changes, the position and nature of earth-rock dam seepage can be preliminarily evaluated;Using the "U-shaped" pre-embedded flower pipe in concrete cutoff wall, the defect of cutoff wall can be detected by pre-embedded flower pipe seepage flow detection, pre-embedded flower pipe seepage digital imaging and pre-embedded flower pipe water pressure test;After accurately detecting the defect of cutoff wall, the grouting repair method in cutoff wall pre-embedded pipe uses pre-embedded "U-shaped" flower pipe to carry out local chemical grouting, low disturbance and high efficiency, realize the accurate repair of seepage cutoff wall.

The utility model relates to electric motor car lamp technical field discloses a telescopic electric motor car lamp support structure of adjustment, including car lamp main part, the car lamp main part bottom is provided with base, the car lamp main part bottom is provided with quick -detach assembly, the base top is fixedly connected with support, the support inner wall is provided with adjusting assembly, the adjusting assembly includes sliding rod, the sliding rod outer wall sliding connection in the support inner wall, the sliding rod inside is provided with the clamping groove, the sliding rod bottom fixedly connected with the limit board, the limit board outer wall sliding connection in the support inner wall, the support outer wall fixedly connected with fixed block, in the utility model, through the sliding rod in the support inner wall sliding, then through the clamping block removal to the clamping groove inside, avoid different road conditions and the different demand of riding scene to car lamp illumination height, thereby according to actual situation flexible adjustment car lamp height, satisfy a variety of illumination demand, improve car lamp applicability.

The utility model discloses a kind of holographic cabin transparent display screen, including cabin, cabin is equipped with screen frame and screen protection device, screen frame is equipped with transparent screen, cooling device and line carding device, the line carding device includes bottom plate, top plate, connecting shaft, locking seat and locking body, connecting shaft is rotatably connected with bottom plate and top plate respectively, locking seat is fixedly connected with bottom plate and top plate respectively, top plate and bottom plate are movably connected, locking body is movably connected with locking seat, bottom plate is movably connected with cabin, the screen protection device includes shell, rotating shaft, shielding soft body, rotating disc and handle, shell is fixedly connected with cabin and rotatably connected with rotating shaft, rotating disc is fixedly connected with rotating shaft and handle respectively, shielding soft body is movably connected with rotating shaft, and there is gap between shielding soft body and transparent screen, the utility model solves the problem of traditional holographic cabin transparent display screen in the transparency of transparent screen, the neatness of wiring cable and the safety of transparent screen.

The application provides a low-pressure drug-loaded balloon catheter system for preoperative treatment of abdominal aortic aneurysm endovascular repair and a pre-treatment method, which comprises a catheter main body, a segmented balloon structure is arranged at the distal end of the catheter main body, a drug-loaded coating structure for realizing biological remodeling of the abdominal aortic aneurysm lesion vessel wall is arranged on the outer surface of the segmented balloon structure, the drug-loaded coating structure releases active drugs for inhibiting the pathological progression of abdominal aortic aneurysm under the action of blood flow, a pressure control system in communication with the segmented balloon structure is arranged on the catheter main body, and the pressure control system is used for low-pressure inflation of the segmented balloon structure and adjustment of injection pressure and flow rate. The application improves the local drug delivery efficiency under the premise of ensuring operation safety through the synergistic design of structural design and drug delivery mechanism, and provides a new preoperative intervention strategy for the treatment of abdominal aortic aneurysm.

The invention discloses a mobile medical vehicle with intelligent navigation and emergency call functions, and relates to the technical field of medical vehicles, the mobile medical vehicle comprises a medical bed, one side of the medical bed is connected with a navigation panel, the medical bed is internally provided with a connecting cylinder, the connecting cylinder can slide up and down along the height direction of the medical bed, and the connecting cylinder is connected with the navigation panel. An external thread groove is formed in the outer surface of the connecting cylinder, a mounting plate is connected into the medical bed, an internal thread groove matched with the external thread groove is formed in the mounting plate, and when the connecting cylinder is pressed to move downwards, the mounting plate and the external thread groove are matched with each other to drive the connecting cylinder to axially rotate; a signal can be transmitted to the navigation panel through the conflict switch by pressing the connecting cylinder by a patient, so that medical staff can be reminded in time; when the illness state is critical, the buzzer body is matched with the connecting plug to give out a strong alarm to quickly attract surrounding support. By means of the design, medical staff can efficiently deal with emergencies while focusing on the state of the patient.

The utility model provides a safety protection emergency rescue stretcher, which relates to the field of rescue stretchers and comprises a stretcher mechanism, the stretcher mechanism comprises a steel frame, canvas, grips, a first elastic protective belt and a second elastic protective belt, and a moving mechanism is arranged at the bottom of the stretcher mechanism. The moving mechanism comprises a fixing block, a fixing frame, a storage groove, a toothed plate, an adjusting frame, a moving groove, a moving frame, a spring groove, a connecting spring, a moving plate, a pressing block, a toothed block and moving wheels, a protective assembly is arranged at the top of the stretcher mechanism, and the protective assembly comprises a supporting frame, a hook-and-loop fastener rough surface, a hook-and-loop fastener hook surface and protective cloth. According to the stretcher, the moving frame is pulled to drive the moving wheels to move, so that the height of the moving wheels is adjusted, when the stretcher is in a narrow place, rescue workers half squat, then the moving wheels make contact with the ground, and the stretcher can be more conveniently used in the narrow places of different sizes through height adjustment of the moving wheels.

The utility model provides a breathing mask bagging device, and belongs to the technical field of machining. Comprising a conveying seat, a feeding conveyor is inserted into the conveying seat, and one side of the conveying seat is slidably connected with a packaging seat, a supporting assembly, a packaging bolt, a top seat assembly and a discharging seat. The conveying base is arranged to be in butt joint with discharging equipment in a factory and equipment for storing packaging bags, the equipment in the factory enables masks to enter the packaging bags and then convey the masks to the feeding conveyor, the feeding conveyor enables the masks to enter the packaging bases, a power source is connected into the top wire holder on the mounting top base, and the packaging bags are conveyed to the packaging bases. A packaging wire holder in the packaging seat is internally connected with a power supply to heat a packaging knife on a packaging shaft, a top seat motor drives the top seat shaft to rotate to enable the cutting knife on the top seat shaft to rotate, and a packaging motor drives the packaging shaft to rotate to enable the packaging knife on the packaging shaft to rotate; and the mask entering the packaging seat is sealed and cut by the packaging knife and the cutting knife.