33results about How to "Avoid the risk of secondary injury" patented technology

The invention discloses a knee-joint operation adjusting and fixing distraction device which comprises a foot posture adjusting fixing apparatus capable of performing stepless continuous position adjustment and fixing in the front-back direction of a guide rail and rotating at 3360 degrees, a foot-thigh separation distance quick and fine adjusting device capable of achieving quick adjustment and fine adjustment of a separation distance between the foot and the thigh in the vertical direction of the shank, and a thigh posture fixing apparatus capable of adjusting rotation of the fixing apparatus according to a foot posture, wherein the lower end of the foot-thigh separation distance quick and fine adjusting device is connected with the foot posture adjusting fixing apparatus, and the upper end of the foot-thigh separation distance quick and fine adjusting device is connected with the thigh posture fixing apparatus. The foot-thigh separation distance quick and fine adjusting device comprises a quick adjusting rod mechanism with the lower end fixed on a foot fixing boot, wherein the upper portion of the quick adjusting rod mechanism is connected with a fine adjusting mechanism, and the upper end of the fine adjusting mechanism is connected with the thigh posture fixing apparatus. The knee-joint operation adjusting and fixing distraction device can meet continuous or temporary fixing and position adjustment under the condition that the knee joint of a patient is at different bending and stretching angles and inward and outward turning angles and any-time quick, fine and accurate adjustment of the foot, shank, knee joint and thigh positions of the patient and angle postures.

The invention discloses rescue transport equipment used for cardiology department. The rescue transport equipment used for cardiology department includes: a bed board, a bed body, a lifting device, rollers and a transfusion rack, the lifting device is disposed in the bed body, the bed board is connected to the lifting device, the rollers are connected to the a lower end of the bed body, the transfusion rack is connected to the bed board, and handles are connected to the bed body; and the bed board comprises a bottom plate and a movable plate disposed on the bottom plate, two ends of the bottomplate are provided with slide rails, and the side of the bottom plate is provided with railings which are detachably connected. The rescue transport equipment used for cardiology department in the invention is simple in structure and low in cost, and solves the difficulty that a cardiology patient needs to be quickly and conveniently transferred without moving, and avoids the secondary injury tothe patient in the process of hospital bed changing. The splicing conversion of the transport equipment is extremely convenient, only two identical rescue transport equipment can realize the changing,and the equipment is suitable for large-scale use.

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 decontaminating solutions, in particular to a nuclide decontaminating solution as well as a preparation method and application thereof. The nuclide decontaminating solution consists of the following components in percentage by weight: 0.3-6% of pentasodium diethylenetriamine pentaacetate, 0.1-5% of an auxiliary chelating agent, 0.1-2% of a buffer agent, 0.1-2% of an adsorbent, 1-10% of a surfactant, 0.1-1% of a preservative, 0.1-1% of a defoaming agent, 0.1-1% of an acid-base regulator, 0.1-2% of a stabilizer and the balance of water. The methodhas the advantages of being high in decontamination efficiency, wide in application range, high in environmental adaptability and long in storage time.

The invention discloses an antibacterial flame-retardant vortex spinning blended yarn and a preparation method thereof. The antibacterial flame-retardant vortex spinning blended yarn is prepared fromthe following raw material components of combed cotton fibers, ramie fibers, microporous polyurethane fibers, antibacterial plant essential oil and a modified adhesive. The flame-retardant substance used in the blended yarn is safe and non-toxic, and the risk that black smoke and toxic gas are generated in the combustion process of fabric made of the blended yarn to cause secondary harm to peopleis avoided; the blended yarn has excellent flame-retardant, antibacterial and odor-removing functions, and after 30 times of washing, the flame-retardant and antibacterial capabilities are still not obviously changed, the fabric has an excellent washing-resistant function, and the fabric is soft and comfortable and has very high practicability.

The invention mainly discloses a drainage bag carrying bag for use in urethral catheterization. The drainage bag carrying bag comprises a liquid bag for accommodating a drainage bag, a reinforcing waistband which sleeves the waist of a patient, and a fixing band which sleeves the thigh of the patient, wherein the liquid bag is arranged on the fixing band; the fixing band is connected with the reinforcing waistband through a connecting band; a winding band arranged along the length direction of the fixing band is further arranged on one side of the liquid bag on the fixing band; two winding posts for winding a drainage tube are distributed on the winding band along the length direction; a clamping groove for clamping the drainage tube is formed in one side of one winding post which is far away from the liquid bag. The carrying bag provided by the invention is convenient for the patient to move, simple in structure, convenient and stable for using, and high in safety; infection and hurt are avoided.

The invention discloses a clinical medical rehabilitation walking assisting cart. The walking assisting cart comprises a U-shaped base; two directional wheels and two universal wheels are fixedly installed on the two sides of the bottom of the U-shaped base respectively, and the two directional wheels are symmetric with the two universal wheels respectively; two first connecting rods are fixedly connected to the top side, close to the universal wheels, of the U-shaped base, the two first connecting rods are symmetrically arranged and are located over the universal wheels respectively, second connecting rods are fixedly connected to the ends, away from the U-shaped base, of the first connecting rods, armrests are fixedly installed on the ends, away from the first connecting rods, of the second connecting rods, and third connecting rods are fixedly connected to the centers of the first connecting rods. According to the walking assisting cart, the risk of secondary injury caused to an elder patient when an accompanying person forgets to brake the cart or the elder patient forgets to brake the cart without the accompanying person is avoided.

The invention relates to an antibacterial composite coating as well as a preparation method and a product thereof. The antibacterial composite coating comprises at least one layer of hydrophilic coating and at least one layer of antibacterial coating, the at least one layer of hydrophilic coating is obtained by photocuring a coating composition containing a host and / or a guest structural unit, the at least one layer of antibacterial coating comprises a guest molecule and / or host modified by antibacterial functionalization molecular, and the at least one layer of hydrophilic coating and the at least one layer of antibacterial coating produce host-guest interactions. The antibacterial composite coating is high in firmness, stability and antibacterial rate, and has good lubricity.

The invention relates to a wound cleaning bed for surgical operation, and effectively solves the problem that a patient needs to be transferred when the operation is performed after the wound cleaningin the prior part. The wound cleaning bed has the technical scheme that the wound cleaning bed comprises a bed body and a bed plate, wherein the bed plate is formed by a plurality of strip-shaped plates through left and right attachment side by side; a water discharging passage and a plurality of water discharging holes communicating with the water discharging passage are formed in each strip-shaped plate; the front and back ends of the bed body are provided with a plurality of vertical grooves in one-to-one correspondence with the strip-shaped plates; the two ends of each strip-shaped plateare respectively arranged in the corresponding vertical groove; the two ends of each strip-shaped plate are provided with chain wheels; chains are arranged right under the chain wheels at intervals; each of the two ends of the bed body is provided with a transverse guide rail; the middle position of the transverse guide rail is downwards concave; a U-shaped structure with an upward opening is formed; the front end and the back end of each strip-striped plate are arranged in the transverse guide rail and can leftwards and rightwards slide; a rack is arranged on the transverse guide rail, and isengaged with a driving gear. The wound cleaning bed has the advantages that the automation degree is high; the use is convenient and fast; the practicability is high.

The invention discloses an electric pulse type intelligent fascia gun, and the fascia gun comprises a fascia gun body; a massage piece is installed at the end of the fascia gun body; the massage piece is provided with an electric pulse massage plate and an electric heating massage plate; the electric pulse massage plate is provided with an electrode matrix, and the electric heating massage plate is provided with a heating matrix, the electric heating massage plate is arranged in the massage piece, heat emitted by the electric heating massage plate is transmitted to a human body through the electric pulse massage plate, when the fascia gun is used, the massage piece is tightly attached to the skin of an affected part, the electrode matrix emits pulse electrical stimulation, muscle tension is relieved, and local tissue tension is reduced; the heating matrix emits heat, blood circulation is promoted through skin, and exercise fatigue is relieved.

The invention relates to a nursing bed having a function of translating and transferring a human body. The nursing bed comprises a bed body and a lifting and translating device, wherein the lifting and translating device comprises a raising frame, a front translating supporting frame and a rear translating supporting frame, and the front translating supporting frame and the rear translating supporting frame can be horizontally moved on the ground; the front end and the rear end of the raising frame are separately mounted on the front translating supporting frame and the rear translating supporting frame in an up-and-down movement manner; a plurality of detachable horizontal raising rods are arranged in a transferring vacant position on the raising frame; the bed body is located in the transferring vacant position; and the horizontal raising rods are horizontally placed in a concave position formed in a bed surface. When the nursing bed is used, the raising frame is used for raising and laying down the human body, the human body can be in reciprocating motion between the bed body and a wheelchair in a level state or another bed body through the front translating supporting frame and the rear translating supporting frame, so that the human body can be transferred between the bed body and the wheelchair or another bed body; and the nursing bed disclosed by the invention has the function of translating and transferring of the human body, is flexible and convenient in usage, low in transferring labor intensity, high in comfort degree, simple in operation, stable and reliable in transferring, high in safety, simple in structure, easy to produce and process, and low in cost.

The invention relates to a human body translation and transfer apparatus for nursing beds. The human body translation and transfer apparatus for the nursing beds comprises a lifting frame, a front translation bracket and a rear translation bracket; the front end and the rear end of the lifting frame are respectively mounted on the front translation bracket and the rear translation bracket in such a way that lifting movement is enabled; the front translation bracket and the rear translation bracket are mounted on the floor in such a way that horizontal movement is enabled; transfer spaces are arranged on the lifting frame; and a plurality of transverse lifting rods are arranged in the transfer spaces in a detachable way. When the human body translation and transfer apparatus is in operation, the lifting frame carries out lifting movement while the transverse lifting rods are utilized so as to lift up or drop down a patient; at the same time, the front translation bracket and the rear translation bracket move to and fro between a bed and a flattened wheelchair so as to realize transfer of a patient between the bed and the wheelchair, thereby greatly reducing labor intensity of transferring so as to lay foundation for automatic transfer. The human body translation and transfer apparatus for the nursing beds is small in lifting height, relatively low in center of gravity, high in degree of comfort, easy to operate, capable of ensuring stable and reliable transfer, and high in safety; moreover, the human body translation and transfer apparatus for the nursing beds is simple in structure as a system, easy to produce and process, and low in cost. Thus, large-scale production and promoted use are beneficially facilitated.

The invention relates to the technical field of medical nursing beds, in particular to a nursing bed with a lateral turning assisting function, which comprises a bed body, a support frame, a turning rack, a turning mechanism and a turning plate, in the turning mechanism, a moving block drives an adjusting plate to move in opposite directions so as to drive the turning plate to rotate through an inclined surface; a moving plate and moving branch chains are matched with each other to drive a patient to conduct auxiliary turning, and the labor intensity of complete manual turning is reduced; in the moving branch chains, the turning plate synchronously drives the moving plate on the right side to turn in the rotating process so as to ensure that the patient is in a turning posture, then a lead screw is rotated to drive the patient to move to the moving plate on the left side through mutual cooperation of a moving sliding block and the moving plate, and then the moving plate on the left side is manually reset, so that the patient can turn over; and the danger of secondary injury of the patient caused by high working intensity and uneven stress due to complete manual turning is avoided.

The invention discloses a ring oscillator based TSV fault test device and method. The device comprises n odd number of sequentially connected inverters, a multipath selector, a Schmitt trigger and anNAND gate, the Schmitt trigger and NAND gate connected sequentially are arranged between the first and second inverters, the multipath selector is arranged between the last inverter and the first inverter, the above parts form a closed loop, and a formed TSV in the ring oscillator structure is connected between the first inverter and the Schmitt trigger. The method comprises that 1) a TSV test mode is activated; 2) a fault-free TSV Monte Carlo period is tested; 3) a Monte Carlo period of the TSV under an open-circuit fault is obtained; 4) a period difference DeltaT is obtained; 5) a sum of square is obtained from the period difference DeltaT in each column; 6) a root value of the sum of square of the period difference DeltaT in each column is calculated; and 7) a function is fit, and testis completed. The test device is low in cost, convenient to use and flexible in operation. The test method is short in test time and high in test precision.

The invention relates to a bed and chair system capable of performing translating type transferring of a human body. The bed and chair system comprises a bed, a wheelchair and a lifting and translating device, wherein the wheelchair is the wheelchair which can be laid flat to the same horizontal surface as the bed surface of the bed; the lifting and translating device comprises a raising frame which can be in perpendicular lifting motion; a transferring vacant position is arranged on the raising frame; and a plurality of detachable horizontal raising rods are arranged in the transferring vacant position. When the bed and chair system is used, the human body is raised by the lifting and translating device through the horizontal raising rods on the raising frame, and can be in reciprocating motion between the bed and the wheelchair under a laid-flat state, so that the transferring of the human body between the bed and the wheelchair is realized, the transferring labor intensity is greatly reduced, and base is established for automatic transferring; and besides, the bed and chair system is low in raising height, low in gravity center, high in comfort degree, easy to operate, stable and reliable in transferring, high in safety, simple in structure, easy to produce and process and low in cost, and mass production and extension and popularization for usage are facilitated.

The invention relates to a wheelchair waist power assisting device (a device which is mounted on a wheelchair and provides power for the chest and the waist to drive a trunk to move) with four rotating joint axes intersected. The body power assisting device comprises a movable platform, four moving branch chains, four motor driving units and a base. A user realizes partial movement of the trunk byconnecting the chest with an upper platform and connecting the base with the hip. The wheel chair waist power assisting device is a 2T2R four-degree-of-freedom parallel mechanism, can achieve bendingand stretching movement, torsion movement and partial combined movement of the human body trunk, and can meet the rehabilitation movement requirements of part of SCI (spinal injury) patients and somedaily life requirements (independently clamping dishes, taking objects and the like) of part of cerebral palsy patients in a sitting posture state; the structure is relatively simple. Movement whichcan be achieved by the movable platform of the device conforms to the principle of human kinematics, so that the device can perform traction movement on the trunk more operably, and the rehabilitationquality and the life quality of part of patients can be improved.

The invention discloses a ring oscillator based TSV fault test device and method. The device comprises n odd number of sequentially connected inverters, a multipath selector, a Schmitt trigger and anNAND gate, the Schmitt trigger and NAND gate connected sequentially are arranged between the first and second inverters, the multipath selector is arranged between the last inverter and the first inverter, the above parts form a closed loop, and a formed TSV in the ring oscillator structure is connected between the first inverter and the Schmitt trigger. The method comprises that 1) a TSV test mode is activated; 2) a fault-free TSV Monte Carlo period is tested; 3) a Monte Carlo period of the TSV under an open-circuit fault is obtained; 4) a period difference DeltaT is obtained; 5) a sum of square is obtained from the period difference DeltaT in each column; 6) a root value of the sum of square of the period difference DeltaT in each column is calculated; and 7) a function is fit, and testis completed. The test device is low in cost, convenient to use and flexible in operation. The test method is short in test time and high in test precision.

The invention discloses a braking method of a high-rotating-speed handle, and a controller. The method comprises the steps that: whether a driving switch of the high-rotating-speed handle is completely lifted or not is detected; when it is detected that the driving switch is completely lifted, whether a motor of the high-rotating-speed handle stops rotating or not is detected; and when the motor does not stop rotating, the driving state of the high-rotating-speed handle driving circuit is switched to offset kinetic energy of the motor, and braking of the high-rotating-speed handle is completed. A short-circuit braking mode is adopted, so that the high-rotating-speed handle can be braked without adding mechanical parts and hardware circuits, the weight of the high-rotating-speed handle is reduced, and the circuit is simplified.

The invention discloses an orthopedic nursing traction frame. The orthopedic nursing traction frame comprises a bed plate, wherein a lifting opening is formed in the left portion of the bed plate; theperiphery of the lower surface of the lifting opening is connected with a plurality of hook springs; the bottoms of the hook springs are connected with a moving seat; the top of the moving seat is connected with a pressure block; the right end of the moving seat is connected with a wire spool; a first rope wheel is mounted above the wire spool; a second rope wheel is mounted on the bottom of theright end of the bed plate; a third rope wheel is mounted on the top of the right end of the bed plate; lifting fork arms are symmetrically connected to the front side wall and the rear side wall of the bed plate; the top of each lifting fork arm is connected with a double-stacked-square-shaped frame; a fourth rope wheel is mounted on the bottom of a nut seat; and a steel wire traction rope is wound among the first rope wheel, the second rope wheel, the third rope wheel and the fourth rope wheel. The orthopedic nursing traction frame is reasonable in structural design, the applicability of thedevice is improved, the weight of the device is reduced, the risk of secondary injury to an affected part due to excessive traction is avoided effectively, a traction direction is convenient to adjust, and the orthopedic nursing traction frame is quite convenient to use.

The invention relates to a lower limb rehabilitation robot system based on myoelectric signal feedback, and a control method thereof. The robot system comprises a mechanical part and an electrical part. The major application targets of the method are rehabilitation patients at early and middle stages. When a patient uses the method to perform rehabilitation training, myoelectric signals of moving muscles of the patient are acquired in real time, the motion intention and the motion speed of the patient are identified, the expected tracks of robots are generated, the expected tracks of driving parts are obtained through inverse solution of kinematics, and motors are driven to output through a designed fuzzy PID (Proportion-Integration-Differentiation) controller. After each motion period, the acquired myoelectric signals are analyzed to judge whether the patient is in a fatigued state or not. When the fatigued state is larger than or equal to a set fatigue threshold, the original output is corrected to remind the patient. After the fatigue is relieved, the rehabilitation training can be resumed. The lower limb rehabilitation robot system based on the myoelectric signal feedback, and the control method thereof have the advantages that since the intention and the muscle state of the patient are identified by using the myoelectric signals, and the myoelectric signals are introduced into control, the participation awareness and the training safety of the patient can be well improved, and the rehabilitation effect is effectively improved.

The invention relates to a transfer-free surgical operation debridement bed, which effectively solves the problem that the patient transfer is needed during the operation after the debridement in theprior art. For the solution, the transfer-free surgical operation debridement bed is characterized in that the transfer-free surgical operation debridement bed comprises a bed body and a bed plate, wherein the bed plate is formed by a plurality of strip-shaped plates through left and right attachment and parallel arrangement; a water discharging passage and a plurality of water discharging holes communicating with the water discharging passage are formed in each strip-shaped plate; a plurality of vertical grooves in one-to-one correspondence with the strip-shaped plate are formed in the frontend and back end of the bed body; the two ends of each strip-shaped plate are respectively arranged in the vertical groove; chain wheels are respectively arranged at two ends of each bar-shaped plate;chains are separately arranged right under the chain wheel; a motor capable of leftwards and rightwards sliding is arranged at each of the front end and the back end of the bed body; the motor is connected with a driving shaft; the driving shaft is parallel to a guide post; a cam and an incomplete gear are arranged on the driving shaft; the cam rotates, so that the strip-shaped plate can be pressed down so that the chain wheel and the chain can be engaged; a rack is engaged with the incomplete gear; the cam can be driven to rightwards move in an intermittent way. The transfer-free surgical operation debridement bed has the advantages that the automation degree is high; the use is convenient and fast; the practicability is high.

The invention relates to a surgical debridement and operation integrated bed which effectively solves the problem that a patient needs to be transferred in operation after debridement at present. Thebed comprises a bed body and a bed plate, a plurality of strip plates are arranged side by side to form the bed plate, a drainage channel and a plurality of drainage holes communicated with the drainage channel are formed in each strip plate, vertical slots in one-to-one correspondence to the strip plates are arranged at the front end and the rear end of the bed body, two ends of each strip plateare placed into the corresponding vertical slots, chain wheels are mounted at two ends of each strip plate, chains are mounted under the chain wheels at intervals, motors capable of sliding left and right are mounted at the front end and the rear end of the bed body and connected with driving shafts parallel to guide posts, first friction wheels and incomplete gears are mounted on the driving shafts, racks are arranged below the incomplete gears, a second friction wheel is mounted below each vertical slot and fixedly connected with a coiling wheel, and a pull wire is connected between each coiling wheel and a slider. The bed is high in automation degree and strong in practicability.

The invention relates to a wound cleaning bed for surgical operation, and effectively solves the problem that a patient needs to be transferred when the operation is performed after the wound cleaningin the prior part. The wound cleaning bed has the technical scheme that the wound cleaning bed comprises a bed body and a bed plate, wherein the bed plate is formed by a plurality of strip-shaped plates through left and right attachment side by side; a water discharging passage and a plurality of water discharging holes communicating with the water discharging passage are formed in each strip-shaped plate; the front and back ends of the bed body are provided with a plurality of vertical grooves in one-to-one correspondence with the strip-shaped plates; the two ends of each strip-shaped plateare respectively arranged in the corresponding vertical groove; the two ends of each strip-shaped plate are provided with chain wheels; chains are arranged right under the chain wheels at intervals; each of the two ends of the bed body is provided with a transverse guide rail; the middle position of the transverse guide rail is downwards concave; a U-shaped structure with an upward opening is formed; the front end and the back end of each strip-striped plate are arranged in the transverse guide rail and can leftwards and rightwards slide; a rack is arranged on the transverse guide rail, and isengaged with a driving gear. The wound cleaning bed has the advantages that the automation degree is high; the use is convenient and fast; the practicability is high.

The invention provides a flight warning device, and relates to the technical field of traffic safety, and the device comprises a warning system which is used for transmitting a warning signal; the flight system is connected with the warning system and controls the warning system to fly; the lifting system is connected with the warning system and controls the warning system to ascend and descend relative to the flight system. The flying system is connected with the warning system, when an automobile breaks down or encounters a motor vehicle accident and needs to be stopped emergently, a driver can stand beside the automobile to remotely control the flying system to fly up, and compared with a ground warning board, the warning board is more eye-catching and visual and does not need to walk by himself or herself to place the warning board; the danger of secondary injury caused by high-speed traffic flow is avoided, and the safety of drivers, vehicles and pedestrians is greatly improved. Moreover, the warning system is telescopically connected with the flight system through the lifting mechanism, the occupied space is small when the warning system is retracted, and the warning system is convenient to carry in a trunk.

The invention relates to the technical field of decontamination liquid, in particular to a nuclide decontamination liquid and its preparation method and application. The nuclide decontamination solution is composed of the following components in weight percentage: 0.3-6% of pentasodium diethylenetriaminepentaacetate, 0.1-5% of auxiliary chelating agent, 0.1-2% of buffering agent, and 0.1-2% of adsorbent , 1-10% surfactant, 0.1-1% preservative, 0.1-1% defoamer, 0.1-1% acid-base regulator, 0.1-2% stabilizer, water balance. The invention has the advantages of high decontamination efficiency, wide application range, strong environmental adaptability and long storage time.

The invention discloses remote tunnel dedusting emergency investigation equipment and a use method thereof. The dedusting emergency investigation equipment comprises a vehicle body, a moving device, a power supply device, a water supply device, a lifting device, a dedusting device and a control device, wherein the moving device, the power supply device, the water supply device, the lifting device, the dedusting device and the control device are arranged on the vehicle body; the vehicle body comprises a chassis and a closed box body, and the chassis is arranged on the lower side of the closed box body and rotationally connected with the closed box body through a bearing rotating shaft; the power supply device is arranged in the chassis, the moving device is arranged on the lower side of the chassis, the water supply device is arranged in the closed box, the lifting device is arranged on the upper side of the closed box, and the dust removal device is arranged at the upper end of the lifting device and connected with the lifting device through a rotating shaft of a rotating arm motor. Through the arrangement of the moving device, the water supply device, the lifting device, the dust removal device and the control device, the working efficiency of dust removal and dust fall and geological and safety information investigation of the tunnel dust removal emergency investigation equipment is improved, and the tunnel dust removal emergency investigation equipment has the advantages of being high in automation degree, high in adaptability and good in dust removal and dust fall effect.

The invention discloses a knee-joint operation adjusting and fixing distraction device which comprises a foot posture adjusting fixing apparatus capable of performing stepless continuous position adjustment and fixing in the front-back direction of a guide rail and rotating at 3360 degrees, a foot-thigh separation distance quick and fine adjusting device capable of achieving quick adjustment and fine adjustment of a separation distance between the foot and the thigh in the vertical direction of the shank, and a thigh posture fixing apparatus capable of adjusting rotation of the fixing apparatus according to a foot posture, wherein the lower end of the foot-thigh separation distance quick and fine adjusting device is connected with the foot posture adjusting fixing apparatus, and the upper end of the foot-thigh separation distance quick and fine adjusting device is connected with the thigh posture fixing apparatus. The foot-thigh separation distance quick and fine adjusting device comprises a quick adjusting rod mechanism with the lower end fixed on a foot fixing boot, wherein the upper portion of the quick adjusting rod mechanism is connected with a fine adjusting mechanism, and the upper end of the fine adjusting mechanism is connected with the thigh posture fixing apparatus. The knee-joint operation adjusting and fixing distraction device can meet continuous or temporary fixing and position adjustment under the condition that the knee joint of a patient is at different bending and stretching angles and inward and outward turning angles and any-time quick, fine and accurate adjustment of the foot, shank, knee joint and thigh positions of the patient and angle postures.