48 results about "Normal side" patented technology

The invention provides a method for three-dimensional (3D) printing of a restoring implant by bony articular surface reconstruction. First three-dimensional reconstruction of a bone articular model is performed, and then virtual restoration reconstruction of bony articular reconstruction, reversal design of a bone articular defect area restoring implant and 3D printing forming of a bone articular defect restoring implant are performed. Modeling software is utilized to copy a normal side bone articular three-dimensional model to an affected side in a sagittal plane symmetry mode, so as to obtain a complete structure reference model before the occurrence of fracture of the affected side; 3D printing pro-processing software is utilized to support and generate the model, a corresponding forming material and a quick forming process are selected to perform 3D printing, a support structure of the implant is further removed, and finally an individual bone articular reconstruction restoring implant is obtained. The individual reversal design is performed according to the symmetry morphological structure of the human body, the bony articular surface reconstruction defect restoring implant is quickly formed by combination with a 3D printing technology, not only can a bone articular defect restoring reconstruction be greatly improved, but also the design and manufacturing efficiency of the implant is effectively improved, the cost is reduced, and customized design and individual-based treatment are performed.

The invention provides a decoupling SVPWM (space vector pulse width modulation) based fault tolerance control method for an open-winding PMSM (permanent magnet synchronous motor) driving system. The method includes when a bridge arm of double inverters has an open-circuit fault, switching on a bidirectional thyristor between a motor phase endpoint, connected with the faulted bridge arm, and a direct-current-side filter capacitor midpoint to realize reconstruction of a topological structure; performing fault tolerance control on the reconstructed topological structure on the basis of decoupling SVPWM, performing SVPWM control on the inverter on the faulted side on the basis of a 90-degree coordinate system, and performing SVPWM control on the inverter on the normal side on the basis of a three-phase coordinate system with a, b and c phases. Compared with the prior art, the decoupling SVPWM based fault tolerance control method has the advantages that procedures after fault tolerance are simplified greatly, reference voltage vectors are proportionally distributed according to effective sectors of maximum output voltages of the inverters on the normal side and on the faulted side, and the utilization ratio of direct-current-side voltages of the inverters is maximized.

A wrap around bed frame for use in supporting a box spring and mattress. The bed frame has the normal side rails and cross members and also has a foot member that is affixed to the foot ends of the side rails such that the foot member provides support for the foot end of the bedding and prevents sagging and damage from weight being exerted at the foot end of the bedding. The entire bed frame can be assembled with fittings that do not require tools for assembly and thus, the bed frame can be assembled easily by the user by simply sliding or snapping the components together. Protective shields cover the bed frame so as to prevent tearing of the linen, bed spreads or other bed coverings used with the bed frame.

The invention discloses an intelligent exoskeleton rehabilitation mechanical arm based on normal side biological electrical control and a method. A driving mechanism is arranged on a dorsal metacarpaplatform, and separately drives movement of each mechanical unit of an exoskeleton mechanical arm body, and the control system receives a position signal fed back by the driving mechanism, and controls movement and/or stop of the driving mechanism; surface myoelectricity sensors of a surface myoelectricity system are arranged on muscle bellies of hand and forearm related muscles of normal side upper limbs, surface myoelectricity signals of the corresponding muscles are collected, feature extraction is conducted, a signal identification module receives surface myoelectricity feature parameters,the feature parameters are sent to a trained classifier, different action types are identified, a bioelectric assessment system receives the surface myoelectricity feature parameters, assessment is conducted on personal features and a real-time state of a patient, and the assessment result is obtained; the identification result and the assessment result are sent to the control system to control movement of the driving mechanism, and then the hand on the affected side is driven to move.

The invention discloses a hemiplegia rehabilitation type external skeleton robot. The hemiplegia rehabilitation type external skeleton robot consists of a back fixing device, a normal side lower limb movement component, a hemiplegia side upper limb movement component, a hemiplegia side lower limb movement component and a central processing system, wherein the normal side lower limb movement component is fixed on one side of the back fixing part; the hemiplegia side upper limb movement component and the hemiplegia side lower limb movement component are fixed on the other side of the back fixing device; the hemiplegia side upper limb movement component consists of an upper arm, an elbow joint driving device and a forearm; the normal side lower limb movement component consists of a normal leg angle sensor connecting arm, a normal leg angle sensor and another normal leg angle sensor connecting arm; the central processing system is mounted in a thigh and is in signal connection with all driving devices and sensors. The hemiplegia rehabilitation type external skeleton robot provided by the invention avoids restriction on body movement of the normal side of a hemiplegia patient and realizes rehabilitation training of the upper limbs of the hemiplegia patient.

The invention discloses a human motion intention recognition method based on an intelligent lower artificial limb. The method solves the problem that a traditional human motion intention recognition method is hysteretic. Before the motion mode of the affected side wearing the artificial limb is switched, the motion intention of a handicapped patient is accurately recognized according to time sequence data of a sensor which is embedded into the artificial limb or bound to the normal side. Besides, compared with a traditional intention recognition method where various sensors are used, only onesensor, namely an inertial sensor, is used in the human motion intention recognition method to accurately recognize the human motion intention. The method includes the following steps that intention recognition data is acquired, and a database is built; the intention recognition data is preprocessed; the intention recognition data is subjected to feature extraction; classification model selection,model training and intention recognition are completed. An experimental data recognition method is provided for the motion intention recognition method of the intelligent lower artificial limb, so that the development of the intelligent artificial limb is promoted, and lower extremity amputation patients can be better served.

To improve safety of operators in maintenance operation and improve safety during normal operation hereafter, an elevator which has an operation switching system which switches from a normal operations state to a maintenance operation state. The elevator has a switching switch (4) which switches between normal operation and maintenance operation; a maintenance operation apparatus which is equipped with a maintenance operation switch (7) which switches between a maintenance side and a normal side, and when the maintenance operation switch (7) is operated to the maintenance side, the elevator car is elevated or lowered as maintenance operation; and a safety controller (1) which receives signals input from the switching switch (4) and the maintenance operation apparatus, and in order to brake the elevator car, outputs instruction signals to cut off a brake power supply (2) or a dynamic power supply (3), and when the switching switch (4) is switched to maintenance operation, the safety controller (1) sets normal operation to be ineffective, and sets the maintenance operation to be effective.

A pitless elevator system removes a car buffer and machine, and other components where so equipped from under the elevator car such that the elevator car can be operated to a clearance between it and a floor of a hoistway of about three inches. The machine may be mounted on board the car or may be located elsewhere and the car buffer located in normal side clearance space. The system further provides a retractable toe guard to allow the car to bottom at the indicated distance from the floor. The system facilitates retrofit applications of elevators without the prior art drawback of digging a pit.

The invention relates to a bottom belt rubbing side-approaching machine. The bottom belt rubbing side-approaching machine comprises a frame (2), and a bottom belt conveyor (4) is arranged on the frame (2). The bottom belt rubbing side-approaching machine is characterized by further comprising a side belt conveyor (7), a direction of a belt conveying face of the side belt conveyor (7) is identical to a goods conveying direction, and a belt conveying speed of the side belt conveyor (7) is identical to a conveying speed of the bottom belt conveyor (4). The side belt conveyor is adopted to replace a normal side guardrail and a side guardrail with fly wheels in the prior art and capable of guiding conveyed articles, and via static friction force between a belt and the articles, certain conveying power can be supplied auxiliary. Sliding friction between the side guardrail and the conveyed articles is avoided, probability of article damage is decreased, noise caused by the fly wheels is avoided, and low noise is achieved.

The invention discloses a femoral neck fracture closed reduction evaluation method and a system based on a three-dimensional C-type arm machine. The method comprises the following steps of S1, after closed reduction is performed in an operation, using the three-dimensional C-type arm machine to carry out multi-dimensional imaging on a femur of a femoral neck fracture side after the closed reduction and a femur of a health side; S2, calculating an A line length alpha and an included angle beta of a projection of a B line on an alpha tangent plane and the B line on a model of multi-dimensional imaging; and S3, according to an alpha value alpha-0/a beta value beta-0 of a normal side, and an alpha value alpha-1 and a beta value beta-1 of a fracture side which are acquired in the step S2, evaluating an operation closed reduction effect. In the invention, a data-based mode is used to determine, and a problem that a result of a personal subjective determination is not accurate in the prior art is solved.

The invention discloses a preparation method for a Parkinson's disease rat model. The preparation method comprises the following steps: obtaining a locus of a rat MFB according to a brain three-dimensional positioning map or/and magnetic resonance imaging data of an experimental rat, wherein the locus is in the position which is 1.72 mm behind the bregma and 2.13 mm beside a middle line; respectively injecting 1-2 [um]l of 6-OHDA in positions 8.5 mm and 8.7 mm below the surface of the skull; after model making, injecting apomorphine hydrochloride to modeled animals for four weeks continuously for carrying out rotary experimental detection, and rotating towards the normal side, if the number of turns is larger than 7 r/min, regarding that model making is successful, and if the rotating direction is wrong or the number of revolutions is not enough, regarding that model making is unsuccessful. According to the invention, medicine is injected and fed to the relatively thick part of the MFB, and 6-OHDA damages nigral dopaminergic neurons through the dopaminergic neuron axon retrograde property, so that the success rate of model making is high, the success rate of 84% can be realized one week after model making and the success rate can reach 92% two weeks after model making; for model making reported at present, model making at other selected loca can be successful until four weeks mostly and the success rate of model making is usually lower than 80%.

The invention discloses a double-loop-line annular operation quick unlinking method which can realize uniform double-loop-line annular operation line load distribution, low line loss and high power supplying reliability and can prevent full-station voltage failure caused by fault of a certain branch line. According to the method, after a female circuit breaker is switched off through standby-protection first-period time delay by a power-supply-side main transformer, before standby-protection second-period time delay action of the main transformer, a branch circuit breaker which is connected with the power supply side on a fault-side bus is quickly switched off, thereby stopping operation of a double-loop-line annular operation circuit. When protection action of a non-annular wiring operation line which is hanged between a power supply side and a load side fails, after the female circuit breaker is switched off through standby protection first-period time delay by the main transformer,a branch circuit breaker which is connected with the fault-side bus is quickly switched off, thereby switching off the path for supplying electric energy of a normal bus to a fault point, realizing purposes of keeping a normal-side bus load and preventing fault range enlargement, and improving reliability of the double-loop-line annular operation circuit.

The invention particularly relates to an automatic bottle blowing production line, which comprises a bottle blowing machine, a conveyer belt and a labeling machine, wherein the bottle blowing machine blows bottles; the bottles passing quality inspection are conveyed to the labeling machine through the conveyer belt and are labeled for transmission; detection devices are arranged on the front and rear of the labeling machine; and when detecting that too many bottles are conveyed and cannot be timely treated, an electric signal is automatically output to an automatic converter, the automatic converter starts a second conveyer belt to convey the bottles to a bottle warehouse, and when the detection device on the front of the labeling machine detects that the number of the fed bottles is insufficient, an output normal side automatically outputs an electric signal to a bottle outlet controller at the bottom of the bottle warehouse, the bottles are discharged through a bottle outlet of the bottle outlet controller, and the bottles in the bottle warehouse are conveyed to the labeling machine through the conveyer belt. The invention has the advantages that: the automatic bottle blowing production line performs automatic production in the whole process, saves manpower and has high production efficiency.

The invention discloses a Bell's palsy condition diagnosis method, which comprises the following steps: acquiring blood flow volumes of a diagnosis region and a reference region of a target user, wherein the diagnosis region and the reference region are same in shape and size; comparing the blood flow volumes of the diagnosis region and the reference region; and in accordance with a comparison result, diagnosing the Bell's palsy condition of the target user. Correspondingly, the invention also discloses a Bell's palsy condition diagnosis device. With the adoption of the diagnosis method and the diagnosis device disclosed by the invention, the situation on blood flow volumes in the face of a patient with the Bell's palsy can be detected in a non-contact mode; and on the basis of a difference between the blood flow volumes on an affected side and a normal side, the illness degree of the patient can be diagnosed.

The invention discloses an individualized mammary gland prosthesis manufacturing method based on the normal side mammary gland MRI image data and individualized mammary gland prosthesis thereof. The invention relates to the individualized mammary gland prosthesis manufacturing method based on the normal side mammary gland MRI image data, the data of three-dimensional laser scanning in orthostatismis integrated, and the normal side mammary gland prosthesis is printed in 3D according to the normal side mammary gland image data, so that the appearance of the double-side breast after breast surgery can be more symmetrical, and an individualized three-dimensional prosthesis model with better appearance effect can be obtained. Moreover, a filling material which is more similar to the mammary gland property of the normal side is used in the filling layer, so that the affected side mammary gland has a good symmetrical appearance in the natural state or in the state of wearing the underwear.

The invention provides a method and a system for maintaining a mill tensiometer. The method comprises the steps of detecting mill interstand tension by adopting pressure heads of the tensiometer; using the pressure heads of the tensiometer on the operating side and the driving side as collecting sources, and obtaining tension values from the collecting sources; judging whether the tension values obtained from all of the collecting sources are abnormal, and determining the collecting source of the failure side if the tension values are abnormal; and giving up to obtain the tension value of thecollecting source of the failure side, and replacing the tension value of the collecting source of the failure side with the tension value of the collecting source of the non-failure side. When the detection of the tensiometer on single side is abnormal, the tension value of the failure side can be replaced with the tension detection numerical value of the normal side for production by adopting the method, so that high-speed strip breakage and shutdown are avoided. Onsite multiple simulation tests indicate that the method is really feasible.

The invention provides a denovo sequencing method. The method comprises the following steps: transforming a to-be-analyzed spectrogram into a mass spectrum connection diagram, counting the score of each path in the mass spectrum connection diagram, extracting a plurality of front normal paths with high path score and a modification path as a candidate peptide fragment, wherein the normal path is the path only formed by normal sides, and the modification path is the path formed by the normal side and a modification side, and only contains one modification side; performing peptide spectrum matching scoring on each candidate peptide fragments, and taking the candidate peptide fragment with the highest peptide spectrum matching scoring as the peptide fragment corresponding to the spectrogram. By use of the method disclosed by the invention, the discovery of thousands of accident modificaitons can be supported without greatly influencing the peptide fragment identification speed; furthermore, the similar peptide fragment sequences can be distinguished in finer granularity, and the accuracy rate of the peptide identification is improved.

The invention discloses a multi-axis ankle joint artificial limb and belongs to the technical field of bionic human body prostheses. The multi-axis ankle joint artificial limb comprises an upper part, a lower part, a joint shaft part and a spring, and the space angle of a joint shaft can be adjusted by adjusting the positions of all mechanisms, so that the prosthesis can be attached to a human body ankle joint structure to the greatest extent, and the prosthesis has the advantages of few parts, simple adjustment mode and low cost. Adjustment can be carried out by taking 1 degree as a unit, the adjusting effect is high in reliability, the space size is small, the matching degree with people is high, the structure is stable, and shaking is not likely to happen. The structure is simple, a wearer can conveniently adjust the joint axis angle suitable for himself/herself, the comfort degree of the wearer is high, the movement coordination of the limb on the affected side and the limb on the normal side can be improved, different road surface changes can be adapted, and the energy consumption of the wearer is reduced.

The invention relates to a fault isolation mechanism for ailerons. The fault isolation mechanism is used for offering isolation protection to an aileron when the aileron fails in the field of aviation. Currently, the left and right ailerons of an aircraft move through a master/deputy joystick. When the linear system of the aileron at one side is blocked, the driver presses an electromagnetic clutch switch arranged between two sets of operating linear systems to disengage the left and right linear systems, so as to operate the linear system at the normal side and control the flight of the aileron at a single side. As long as the switch is triggered, the electromagnetic clutch can be disengaged from the linear systems. The operating linear systems may be disengaged mistakenly, while a mechanical clutch can be disengaged only when the driver applies a large operating force to the control column, and there is no possibility of mistaken disengaging. The electromagnetic clutch is of lower reliability than a mechanical disengaging mechanism. When the linear system of the aileron at one side is blocked, the driver operates the control column to disengage the blocked linear system and the unblocked linear system through the fault isolation mechanism, so as to operate the unblocked linear system separately.

The invention provides a tree deep planting method in side slope protection. The method comprises the steps that tree seedling breeding is conducted using degradable bags to obtain tree young seedlings; holes are drilled in the slope face of a side slope, the included angle between the holes and the upper slope face is greater than or equal to 90 degrees, the tree young seedlings along with the degradable bags are moved into the holes, and the tops of the degradable bags is 5-10 cm away from the slope face of the side slope; bases of rhizomes of the tree seedlings are wrapped with fiber filaments, the fiber filaments are flush with the upper edges of the holes, and macroporous ecological concrete is poured on the outer sides of the fiber filaments. According to the method, the tree young seedlings are directly transplanted on the slope face, the bases of the rhizomes of the tree young seedlings are wrapped with the fiber filaments, finally the macroporous ecological concrete is sprayedon the outer layers of the fiber filaments to reinforce, so that the trees and the side slope are integrated as a whole, concrete reinforcing is adopted by deep planting, and therefore the lodging ofthe seedlings which might caused by soil and water loss on rainy and windy days of a normal side slope is greatly reduced.

The invention discloses an implant anchorage combined single-side arch expansion device, which comprises a first base supporter, a second base supporter, a first base, a second base, a screw rod and aguide rod, wherein the first base is arranged in the first base supporter; the second base is arranged in the second base supporter; the screw rod and the guide rod penetrate through the first base and the second base; a driving hole is formed in the middle part of the screw rod; the implant anchorage combined single-side arch expansion device also comprises an expansion crown and a position limiting crown; the expansion crown is fixedly connected with the first base; the position limiting crown is fixedly connected with the second base; a tooth crown accommodating cavity is formed between the tail end of the expansion crown and the tail end of the position limiting crown; a planting nail hole is formed in the second base supporter. The implant anchorage combined single-side arch expansion device has the advantages that the single-side arch expansion is used; at the opposite side, a planting nail implant anchorage is implanted into the bone; an absolute anchorage is fixed at the normal side; the unnecessary expansion on the normal side dental arch is avoided. A second connected crown can ensure the final restoration position of the jaw and the tooth, and the excessive correction is avoided.