43results about How to "Reduce the risk of secondary injury" patented technology

The invention discloses a highly visible arc protective multilayer composite fabric which at least comprises a surface fabric and an inner fabric, wherein the surface fabric and the inner fabric are adhered by a flame retardant adhesive; the surface fabric is woven from two or more than two of vinyon N, Lenzing flame retardant viscose and flame retardant cotton; the inner fabric is blended from one or two yarns of silicon nitrogen series flame retardant viscose, para-aramid as well as polysulfonamide and polyimide; and the flame retardant adhesive is flame retardant polyurethane or flame retardant EVA (Ethylene-Vinyl Acetate). According to the manner, the fabric disclosed by the invention can achieve long-term and excellent flame retardant and arc protective effects, and the fabric has theeffects of being humidity-absorbing and breathable, comfortable to wear, antibacterial and healthy.

The invention relates to the technical field of vehicle emergency escape, and aims at providing a novel vehicle emergency escape window which is high in safety performance, simple in structure and convenient to be transformed and installed. According to the technical scheme, the novel vehicle emergency escape window with high safety performance comprises a car window, the bottom of which is hinged with the car body, wherein the top surface, facing inward, of the car window is provided with a locking mechanism; the car window includes a window frame and two layers of window bodies arranged inside the window frame, and meanwhile, one of the two layers of the window bodies serves as a fixed window body fixed with the window frame, and the other one serves as a mobile window body capable of sliding in an altitude direction of the window frame. The novel vehicle emergency escape window with high safety performance has the advantages of better saving time and labor, increasing the escape probability of escapers, reducing injuries and deaths of accidents, decreasing escapers' risks of suffering from a secondary damage, and being simple in structure, low in costs, and convenient for promotion and popularization.

The invention provides a closed-loop control system for a wrist rehabilitating exoskeleton based on force feedback. The closed-loop control system comprises a driving force closed-loop control module, the exoskeleton and a pressure sensor; the exoskeleton comprises a linear motor and a spring steel sheet; the exoskeleton drives the spring steel sheet through the linear motor, and then the spring steel sheet drives the wrist to move; the pressure sensor is used for collecting actual driving force of the exoskeleton; the driving force closed-loop control module is used for setting control cycles and expected driving force, and the actual driving force is collected once in each control cycle in the wrist moving process; and the magnitude of the expected driving force and the actual driving force is compared in the current control cycle, and according to the expected driving force and the actual driving force, the stroke increment of the linear motor is calculated and superimposed to the stroke amount of the linear motor in the previous control cycle to serve as the stroke amount of the linear motor in the current control cycle to be output. Force feedback can be achieved, thus the driving force of the exoskeleton reaches the specified force value, and the risk of secondary damage to the wrist is reduced.

The invention relates to the technical field of medical sickbeds, in particular to a turning-over bed for burn and fracture patients. The turning-over bed comprises a supporting frame, two oppositely-arranged rotating pieces are rotationally connected to the supporting frame, two bed plates which are arranged in parallel are detachably connected to the rotating pieces, a gap used for containing apatient can be formed between the two bed plates, and protection mechanisms are arranged on the two bed plates; and a stabilizing mechanism for stabilizing the bed plates is arranged on the supportingframe, and a driving mechanism for driving the rotating pieces to rotate is arranged on the supporting frame. The driving mechanism is used for driving the rotating pieces and the patient to automatically rotate by 180 degrees, and the two bed plates form the gap for containing the patient. With the protection mechanism, the patient is safer and more stable in the turning-over process, and the problem that the patient cannot be automatically and safely turned over by 180 degrees in the prior art is solved.

The invention discloses a waist rehabilitation training device. The waist rehabilitation training device comprises a device bottom plate, a base, a backrest plate, a disc seat plate, an armrest frame,an auxiliary getting-up device, an auxiliary waist twisting device and an auxiliary standing device. The auxiliary getting-up device realizes rotation of the backrest plate through a screw rod motorand a connecting rod sliding block mechanism, and assists the patient in completing training from a lying posture to a sitting posture. The auxiliary waist twisting device controls a gear mechanism through a motor to achieve rotation of the seat, and assists the patient in waist twisting training. The auxiliary standing device controls the armrest frame to ascend and descend through a cam mechanism, and assists the patient in achieving training from the sitting posture to the standing posture. The patient is assisted in exerting force through driving of the motor, and the risk of secondary injury in the rehabilitation process can be reduced. Meanwhile, rehabilitation requirements of different degrees can be met by regulating and controlling the working time, the rotating speed and the power of the motor. The device is suitable for changes of three poses of lying, sitting and standing, and the problem that related devices on the market at present are single in training form is effectively solved.

The invention relates to a double-person stretcher carrying system capable of being conveniently used in a narrow environment. The double-person stretcher carrying system comprises a hard support mechanism, a flexible loading mechanism and a flexible carrying mechanism, wherein the hard support mechanism comprises two stretcher rods, a plurality of rhombic connecting rods and a reinforcing supportrod; the plurality of rhombic connecting rods are arranged between the two stretcher rods at intervals in the longitudinal direction; the reinforcing support rod penetrates through guide pipes of therhombic connecting rods and the connecting rings; a locking mechanism is arranged at each of two ends of the reinforcing support rods; the flexible loading mechanism is arranged on the hard support mechanism in a covering way; and the flexible carrying mechanism comprises two pairs of soft annular shoulder straps. The double-person stretcher carrying system capable of being conveniently used in the narrow environment has the advantages that the transverse width can be reduced through shrinkage, and the double-person stretcher carrying system can be conveniently used in various abnormal environments, particularly in the narrow environment.

The invention discloses novel forceps for the reduction of sagittal fracture of mandibular condyle; the novel forceps comprise two handheld rings and two connection parts; the two connection parts are hinged to each other; two forceps arms are arranged at the upper end; the top end of one forceps arm is provided with a positioning jaw, and the top end of the other forceps arm is provided with a fastening jaw; the positioning jaw comprises two clamp tips that connect at the base and open at the end; the fastening jaw is releasably inserted between the two clamp tips. The novel forceps are suitable for the reduction of a fracture between the upper end face of the mandibular condyloid process and the two clamp tips, is widely applicable, and is good in flexibility. A production of jaws of the novel forceps for the reduction of sagittal fracture of mandibular condyle is also disclosed; the jaws are made by combining: ultrahigh molecular weight polyethylene, nano ZnO, nano chitosan and the sintering aid nano Ni; the production method of the jaws has low production cost, the jaws gain well-improved tensile strength, impact resistance, rigidity and hardness, the antibacterial capacity is also greatly improved, and the jaws are applicable as disposable jaws.

The invention belongs to the technical field of rehabilitation medical equipment, and particularly relates to a multifunctional patient limb rehabilitation trainer and a use method. The inner sides of two thigh mechanisms of the rehabilitation trainer are fixedly provided with first inserting blocks, the first inserting blocks are provided with first inserting grooves, the inner sides of two shank mechanisms are fixedly provided with second inserting blocks, and the second inserting blocks are provided with second inserting grooves; a second inserting groove is formed in each second inserting block; a thigh bearing plate is inserted into the first inserting groove, and a shank bearing plate is inserted into the second inserting groove; the seat assembly comprises a seat plate, a first extension plate and a second extension plate; in the seat posture, the thigh bearing plate and the shank bearing plate are inserted from the lower portions of the first inserting-connecting groove and the second inserting-connecting groove correspondingly; in a bed posture, the thigh bearing plate and the shank bearing plate are respectively inserted from the upper parts of the first inserting groove and the second inserting groove. The rehabilitation training device can be used as a sickbed and can be well in butt joint with the sickbed, a patient can be transferred conveniently, and multifunctional rehabilitation training can be conducted on the legs and the waist.

The invention relates to medical apparatus and instruments, and in particular relates to an auxiliary running device used for nursing. The auxiliary running device comprises two supporting crutches, and is characterized in that each supporting crutch is connected with a half round rod through a chain, one ends of the two half round rods are hinged together, the other ends of the two half round rods can be clamped together, and connecting rods are downwards connected to the half round rods. The auxiliary running device further comprises a walking ring provided with universal traveling wheels, upright posts are arranged on the walking ring, and the connecting rods and the upright posts can be connected together through insertion. The auxiliary running device has the beneficial effects that in use, a patient is located in a ring composed of the two half round rods and the walking ring, and the two rings play the roles of limiting and protecting the patient, so that the safety factor is increased when the patient takes exercises, and thus the risk of secondary injury is reduced.

The invention discloses a shank operation leg positioning device for an operating room. The shank operation leg positioning device comprises a bottom plate, a positioning mechanism is arranged above the bottom plate, the positioning mechanism comprises square rods, supporting plates, square cylinders, screws, convex plates, bolts, flitch plates, inserting rods, sliding rods, sleeves, arc-shaped plates and soft cushions, and the two square rods are located on the front side and the rear side of the upper surface of the bottom plate correspondingly. According to the shank operation leg positioning device for the operating room, through cooperation of the bottom plate and the positioning mechanism, medical staff place a shank to be operated of a patient on the upper surface of the bottom plate, an operation focus is located in the center of the upper surface of the bottom plate, and the positions of the square cylinders are adjusted by rotating the screws anticlockwise; and after adjustment is completed, the screws are rotated clockwise to abut against the square rods, then the bolts are rotated clockwise to enable the arc-shaped plates to abut against the principle focus of the shankof the patient, the to-be-operated shank of the patient can be clamped and positioned, and the shank of the patient is not prone to being interfered by external force in the operation.

The invention discloses a medical transferring bed. The medical transferring bed comprises a machine frame, and flexible belts and transferring drivers for driving the flexible belts to move in the length direction of the flexible belts are arranged on the machine frame. The medical transferring bed is characterized in that front rollers are arranged on the machine frame, the parts, close to the front rollers, of the flexible belts are wound around through the front roller to form a dual-layer structure, a supporting plate is arranged between upper flexible belt bodies and lower flexible beltbodies, and is fixed to the machine frame, and the supporting plate lifts the upper flexible belt bodies when the upper flexible belt bodies suffer from external force to be concave. The medical transferring bed is large in carrying capacity, the size in the thickness direction when the medical transferring bed is required to be put into the back of a patient is small, and therefore in the patienttransferring process, the movement range of the patient can be small.

The invention relates to a building earthquake damage information detection and extraction method. The method comprises the following steps of S1, point cloud data preprocessing; S2, performing principal component analysis on the original data of each wall surface of the building after coordinate conversion, calculating a curvature value of wall surface point cloud data, and extracting points of which curvature normal distribution expected values are greater than a threshold value; S3, calculating an adjacent point included angle value of the wall surface point cloud data, performing statistical analysis on distribution characteristics of adjacent point cloud included angle characteristic values of the building wall body crack after the earthquake, and extracting points of which the adjacent point included angle values are greater than a threshold value; S4, performing statistical analysis on the normal vector of the point cloud data to obtain a discrimination threshold corresponding to the building damage area; S5, performing denoising processing on the preliminary extraction result calculated in the step S4 by adopting a density clustering algorithm to obtain a distribution region of the building wall crack point cloud. The three-dimensional laser scanner scans the post-earthquake building to obtain the three-dimensional point cloud data, the earthquake damage information ofthe building is rapidly extracted, and technical support and scientific guarantee can be provided for post-earthquake emergency rescue and loss evaluation.

The invention relates to the technical field of medical devices, and particularly discloses a multi-functional stretcher. The multi-functional stretcher comprises two bearing rods in parallel arrangement, a plurality of support members are connected between the two bearing rods, a plurality of blocking cloths are in dismountable connection, and the blocking cloths and the support members are in staggered arrangement; each support member comprises two support plates which are respectively and rotatably connected to the two bearing rods, at least two lock holes are formed in the side wall of each support plate, when every two support plates rotate to the same plane, one ends away from the bearing rods, of the two support plates partially coincide, the two corresponding lock holes are locatedin the partial coinciding range, besides, the lock holes in the two support plates are in alignment, and the axle line of one of the lock holes coincides with a symmetrical line between the two bearing rods; and a lock rod is in dismountable connection to each lock hole. According to the multi-functional stretcher disclosed by the invention, different kinds of wounded people are rescued through changing the shape of the stretcher, and the problem that a stretcher in the prior art is relatively single in functions can be solved.

The invention relates to a lateral tilting device for an electric bed. A balance rotary disc is movably arranged at the middle position of one side of a double tilting frame of a conventional lateral tilting device; the balance rotary disc is movably connected with a left balance bar and a right balance bar; one end of the left balance bar and one end of the right balance bar are symmetrically arranged on the balance rotary disc along the circular direction; the outer end of the left balance bar is movably connected with a left connecting shaft; the outer end of the right balance bar is movably connected with a right connecting shaft; the left balance bar and the right balance bar are equal in length; and two ends of the double tilting frame are respectively provided with a sliding slot. The lateral tilting device is applied to the medical electric bed, can realize the lateral tilting function of the bed surface, and enables the bed surface to operate steadily when lateral tilting without causing the shake phenomena of the bed surface, thereby reducing the risk of secondary injury to the seriously sick people.

The invention discloses a seven-degree-of-freedom series-parallel upper limb exoskeleton rehabilitation robot which can perform rehabilitation training on three joints of shoulders, elbows and wrists of upper limbs of a human body in seven degrees of freedom. The seven-degree-of-freedom series-parallel upper limb exoskeleton rehabilitation robot comprises a driving mechanism, a base, a shoulder joint exoskeleton mechanism, an elbow joint exoskeleton mechanism and a wrist joint exoskeleton mechanism. The robot can realize rehabilitation forms of three movement freedom degrees of forward flexion / backward extension, adduction / abduction and inward / outward rotation of the shoulder joint, rehabilitation forms of flexion / extension freedom degrees of the elbow joint, rehabilitation forms of three movement freedom degrees of dorsal flexion / palmar flexion and radial flexion / ulnar flexion of the wrist joint and pronation / supination of the forearm. According to the seven-degree-of-freedom series-parallel upper limb exoskeleton rehabilitation robot, the shoulder joints are driven by the motors, the wrist joints are driven by flexible ropes, the rehabilitation robot has the advantages of being good in flexibility and small in inertia when rotating through rigid-flexible coupling, the rotating centers of all the joints of the robot are better attached to the rotating centers of the human joints, and the rehabilitation treatment effect of a patient is improved.

The invention provides a method for measuring intracranial blood vessel flow reserve parameters by using ultrasonic microbubbles. The method comprises the following steps of: firstly, sending ultrasonic waves to a target blood vessel and a simulated blood vessel so as to determine the optimal pressure measurement incident sound pressure at the far end and the near end of blood vessel stenosis; determining amplitude compensation factors of the stenosis far end and the stenosis near end of the simulated blood vessel according to a relation curve between the sub-harmonic amplitude of the stenosis far end and the stenosis near end of the target blood vessel and the stenosis near end of the simulated blood vessel and the incident sound pressure, and correcting the blood pressure of the simulated blood vessel and a microbubble sub-harmonic amplitude conversion formula by using the amplitude compensation factors; and establishing a conversion relation expression between near-end blood pressure of a target blood vessel stenosis and far-end blood pressure and microbubble subharmonic amplitudes, obtaining the microbubble sub-harmonic amplitudes of the stenosis of the target blood vessel at the far end and the near end under the optimal pressure measurement incident sound pressure, and combining a conversion formula to obtain a blood vessel flow reserve value of the target blood vessel. The measurement method is non-invasive measurement. The blood pressure values of the near end and the far end of the narrow section can be obtained without invasive puncture, and the secondary injury risk during monitoring is greatly reduced.

The invention provides a maintenance method for online replacement of a crane end beam, and relates to the technical field of bridge cranes, and the maintenance method comprises the following steps: manufacturing a group of jacking tools according to the horizontal elevation from a crane main beam to the ground; collecting data to find out longitudinal and transverse reference lines and a vertical center line of crane maintenance, and fixing the three reference lines by adopting a steel wire stay wire to form measurement standard data; diagonal data of the crane, parallelism data of end beams on two sides and main beams on two sides and fixed angle data of the end beams are obtained, the jacking tool is moved to the reverse side of the replaced end beams, and the main beams are jacked and leveled; cutting off an end beam on one side of the main beam, and hoisting off-line; by using the jacking tool and determining the longitudinal and transverse datum lines and the vertical center line in the overhauling process, the standard alignment range of the new end beam is determined by taking the datum lines as a reference, spot welding fixation and end beam full welding are carried out, the difficulty that the crane end beam is replaced, overhauled and offline is overcome, and the purposes of short time consumption and low cost of crane overhauling are achieved.

The invention relates to a composite material for an implant and a preparation method of the composite material. The composite material for the implant comprises a titanium metal substrate layer, a titanium dioxide nanotube layer and a coating comprising hydroxyapatite and rare earth doped metal organic framework particles. The method comprises the following steps: (1) pretreating a titanium sheet; (2) preparing a titanium dioxide nanotube layer; (3) preparing rare earth doped metal organic framework particles; and (4) preparing a coating containing hydroxyapatite and rare earth doped metal organic framework particles. The composite material for the implant can overcome the defects of poor antibacterial property and the like of the existing titanium material on the premise of having good biocompatibility similar to that of an existing titanium material.

The invention discloses a transfer bed, which comprises a frame and a flexible belt. The bottom of the frame is provided with a running mechanism, and an equipment installation area and a working areaare arranged adjacently above the running mechanism. The transfer bed is characterized in that: an upper roller, a lower roller and a transfer drive are arranged in the equipment installation area. The upper roller and the lower roller are rotatably cooperated with the frame. A front roller is provided in the working area. One end of the flexible belt is wound around the upper roller, and the other end of the flexible belt is wound along the length of the front roller through the outer side wall of the front roller and then extends toward the lower roller to be retracted on the lower roller.The portion of the flexible belt adjacent to the front roller is inverted by the front roller to form a two-layer structure. The upper region of the upper flexible belt forms a transport space. The transfer drive rotates or advances the flexible belt along its length by driving the upper or lower roller.

The technical scheme of the invention discloses an external safety protection system device based on a lower limb rehabilitation robot. A slow descending device is mounted on a bracket, positioned above of human body height on a treadmill and connected with a rope; a trunk strap is connected with the other end of the rope. The device has the advantages that the bracket is arranged in front of thetreadmill, the slow descending device and the rope are mounted on the bracket, and a patient is connected with the rope after wearing the trunk strap and is positioned in a rear position of the surface of the treadmill, the posture of the upper trunk can be corrected during training of the patient; through the device, serious lateral inclination to one side of the upper trunk of the patient can beprevented in an extremely arduous condition, and injure caused by lateral inclination impaction can be prevented; the upper trunk is limited to move within certain limit, and collision caused by tumble of the patient caused by problems, such as sudden spasm, during training is prevented; through the practical use of the device, secondary injury risk caused by tumble of the patient in emergency situations is reduced.

The invention belongs to the technical field of 3D printing, and particularly discloses a positioning head mold for gamma knife surgery. the positioning head mold comprises a left surface mold, a right surface mold and a rear mold which are all formed by 3D printing, wherein the rear mold is attached to the opposite part of skull occipital bone of a patient, the left surface mold is attached to the opposite parts of the left cheekbone, left eyebrow and the left half part of the lower jaw of the patient, and the right surface mold is attached to the opposite parts of the right cheekbone, the right eyebrow arch and the right half part of the lower jaw of the patient; and the left surface mold and the right surface mold are detachably connected and are both detachably connected with the rearmold, mounting and dismounting are convenient, and risks are reduced. The invention further discloses a three-dimensional imaging and forming system which comprises a box body, wherein a first formingcabin, a second forming cabin, a third forming cabin and a control cabin are arranged in the box body; a forming bed and a spray head are arranged in the forming cabin; and a control unit, a data processing unit and a task management unit are arranged in the control cabin, printing of the three surface molds can be completed at the same time, and the printing efficiency is improved.

The invention discloses an obstetric parturition bed which comprises a bed plate, wherein the bed plate comprises two rectangular plates, the two rectangular plates are connected through a rotating shaft, handles are welded to the front side and the rear side of the top end of the bed plate, reinforcing ribs are arranged in central positions of the front side and the rear side of the bed plate, the bed plate is connected with the reinforcing ribs through a spiral buckle, the left end of the front side of the bed plate is welded with a U-shaped groove, a baffle rod is embedded in an inner cavity of the U-shaped groove, the U-shaped groove is connected with the baffle rod through a pin shaft, the bottom end of the bed plate is welded with a sliding plate, the sliding plate consists of the two rectangular plates, and an inner side pin shaft of the sliding plate is connected with a roller. The obstetric parturition bed not only can adjust the height of the obstetric parturition bed so as to be convenient for pregnant and lying-in women to get on and off the bed, but also can adjust a body position of the pregnant and lying-in women during the parturition so as to promote parturition; meanwhile, there is no need to lift the lying-in women from one bed to another bed before and after the parturition, so that time and labor are saved, risk of secondary injury of the lying-in woman isreduced, practicability is strong and large-scale popularization is suitable.

The invention discloses an online detection method for an optical fiber link of a modular multilevel converter control system. The modular multilevel converter control system comprises a converter control system optical transceiver module, a sub-module control panel optical transceiver module and an optical fiber connected between the converter control system optical transceiver module and the sub-module control panel optical transceiver module. Receiving optical power detection circuits are configured on an optical transceiver module of a converter control system and an optical transceiver module of a sub-module control panel, and receiving optical power detection is carried out on an uplink optical fiber link and a downlink optical fiber link respectively. The online detection method comprises the following steps: summarizing received optical power information of all uplink and downlink optical fiber links, diagnosing and analyzing data according to a communication margin detection strategy and / or an optical fiber attenuation detection strategy, and early warning an unhealthy optical fiber link channel in advance. The online detection method can be used to solve a health diagnosis problem of the optical fiber link in a simplest, reliable and comprehensive mode.

The invention relates to a medical transferring bed plate and a transferring bed. The transferring bed plate comprises a bed plate body and an adjusting mechanism, wherein the adjusting mechanism is mounted on the bottom surface of the bed plate body and comprises a transverse adjusting unit; the transverse adjusting unit comprises at least two transverse track rods and end part modules; the transverse track rods are arranged parallel to short sides of the bed plate body; first pin holes which are distributed densely along the direction of a track are formed in the transverse track rods; one end part module is connected with each end of each transverse track rod; and the adjusting mechanism also comprises a longitudinal adjusting unit which comprises two longitudinal track rods, sliding blocks and second connecting pins. Compared with the prior art, the transferring bed plate designed by the invention has universality, can be adaptively connected with different transfer trolleys of different specifications and functions through the adjusting mechanism, prevents patients from being transferred in different transferring trolleys, reduces the risk of secondary injury, is also convenient to operate by medical operators, and meanwhile, is low in transformation cost and high in practical value.

The invention discloses a preparation method of a swim bladder-based myocardial patch. The preparation method comprises the following steps: (1) depositing metal nanoparticles on a swim bladder in situ to obtain a modified conductive swim bladder base material; and (2) packaging one surface of the conductive swimming bladder base material and hydrogel prepared from fish gelatin collagen, and coating and packaging the edge contact position of the conductive swimming bladder base material and the hydrogel with fish gelatin-based biological glue to obtain the swimming bladder-based myocardial patch. According to the swim bladder-based myocardial patch provided by the invention, along with relaxation and contraction of the heart, piezoelectric polarization can be generated in the swim bladder to generate a piezoelectric effect, so that the conductive swim bladder base material and the attached myocardial damaged part can be subjected to electrical stimulation therapy in one-time beating of the heart, and repair of the damaged myocardial part is promoted.