19 results about "Head injury" patented technology

This application discloses a head-mounted neck and shoulder restraint device, relating to the field of medical protective equipment technology. It includes a helmet, face protector, neck protector, and shoulder pads. The face protector is rotatably mounted on the front side of the helmet. The helmet, from the outside in, comprises a hard leather outer layer, an engineering mesh plastic shell middle layer, and a breathable sponge inner layer. The neck protector is fixed to the helmet and tightened with Velcro. The shoulder pads are located on both sides of the helmet and are equipped with straps. This application utilizes the helmet to cushion and protect the head of agitated mental patients who may bump their heads, preventing head injuries. Simultaneously, the face protector, neck protector, and shoulder pads prevent patients from biting themselves or others, thus effectively restraining the patient while protecting both the patient and others from harm.

The utility model discloses a novel backrest handle for protecting passengers, which belongs to the technical field of automobile seats and comprises a seat backrest, a handle, a handle blanking cap and a self-tapping screw. First holes are formed in two ends of the handle, a strip is arranged on the handle blanking cap, a second hole is formed in the end part of the strip, the handle is fixed on the seat backrest through a self-tapping screw, the self-tapping screw sequentially penetrates through the second hole and the first hole, and the handle blanking cap is in interference fit with the handle; the handle assembly is made of rubber materials, on the basis of meeting the requirements of Fanjin laws and regulations, the handle assembly is easy and convenient to install, soft and comfortable in material, good in manufacturability and capable of meeting the requirements of the GB 13057 standard and relieving injuries to the heads of passengers in the back row, the handle assembly is high in structural stability, the key size is easy to guarantee, and the handle assembly can be applied to follow-up platform type development of passenger car handle assemblies. The passenger car seat is suitable for passenger cars with passengers.

The application discloses a kind of prediction method, device and storage medium of passenger collision head injury grade, relating to injury assessment technical field, which comprises the following steps: first, source domain data and target domain data are obtained;Then the two types of data are preprocessed;Subsequently, the preprocessed source domain data is input into the CNN-LSTM hybrid model for pre-training to obtain a pre-training model;Then, the parameters of the CNN part of the pre-training model are frozen, and the LSTM part and the fully connected layer are fine-tuned using the preprocessed target domain data to obtain a transfer learning model for the target posture;Finally, a ride angle selection model is selected: if greater than the angle threshold, the transfer learning model is used to output the injury grade under the target posture;If less than or equal to the angle threshold, the pre-training model is used to output the injury grade under the standard posture.The method can effectively improve the accuracy of passenger injury prediction during the collision process.

This invention provides a head and neck protection device for rear-end collisions, including a headrest seat, a first buffer assembly, and a limiting mechanism. When a rear-end collision occurs, the impacted vehicle accelerates forward, causing the head of an occupant to strike the first cushion. Upon impact, the first cushion drives a guide seat to move, compressing multiple sets of buffers. At this time, the first cushion and the multiple buffers work together to cushion the impact on the head, improving the device's buffering effect and reducing head injuries. Simultaneously, the movement of the guide seat drives the fixing assembly to release the limiting rod. The driving component then drives the limiting rod to rotate to a second state, so that the arc-shaped portion of the limiting rod faces the first cushion. When the head moves forward due to the impact reaction force, the limiting rod can contact the head, thereby limiting large-scale forward head movement, preventing neck strain, and improving the device's protective effect.

The invention relates to the technical field of vehicle safety design, in particular to a pedestrian protection engine hood inner plate prediction method and device, a vehicle and a medium, and the method comprises the steps: obtaining an engine cabin arrangement space diagram, a head injury index distribution diagram and an outer plate and inner plate contour diagram of a pedestrian protection engine hood to generate a data set; the data set is divided into a training set and a verification set, a data sample comprises a cabin arrangement space diagram, a head injury index distribution diagram and an outer plate contour diagram, and an inner plate contour diagram serves as true value data; training a prediction network model by using a training set, inputting the three types of diagrams, and outputting an inner plate contour diagram; updating model parameters according to the prediction result and the truth value, and evaluating the model by using the verification set until the target performance is achieved; and finally using the trained model to predict the contour of the inner plate. Therefore, the problems of long development period, high cost, low calculation efficiency and the like due to the fact that related technologies depend on reverse simulation to optimize the engine hood inner plate are solved.

The utility model discloses a protection device for elevator detection, and belongs to the field of elevator detection.The protection device for elevator detection comprises a lift car track, a working platform capable of being separated from the top of a lift car is arranged on the lift car track, and electric suction cups used for being adsorbed to the top of the lift car are arranged at the four corners of the bottom of the working platform correspondingly; rail driving assemblies used for driving the operation platform to move on the lift car rails are fixedly installed on the side faces of the operation platform, a protective fence is arranged on the edge of the operation platform, and a hanging net is fixedly installed on the protective fence. According to the protection device for elevator detection, the combination of the electric suction cup and the rail driving assembly enables the platform to run independently of the elevator car, even if the elevator car is out of control, the platform can still be kept stable through the rail, personnel are prevented from falling along with the elevator car, meanwhile, the hanging net covers the upper portion of an operation area, falling objects such as tools and screws are effectively intercepted, and the risk of head injury is reduced.

The utility model relates to the technical field of helmets, in particular to a helmet with centering positioning adjustment and impact force unloading functions. The middle of the lining soft rubber frame is fixed to the helmet body, and the two ends of the lining soft rubber frame are movably connected to the helmet body through a middle hanging frame; the adjustor is arranged in the helmet body, the two ends of the adjustor are connected to the lining soft rubber frame through silk threads, and the silk threads surround the lining soft rubber frame; according to the application, the contraction degree of the lining soft rubber frame is adjusted through the swinging stretching of the two ends of the lining soft rubber frame and the pulling of the regulator to the silk threads, and the multi-point connection mode of the lining piece is matched, so that the flexibility of the lining soft rubber frame is improved, and the service life of the lining piece is prolonged. According to the helmet, the head can be kept in the geometric center of the helmet body, and through front-back and left-right movement of the lining piece, when a human body wears the helmet and the helmet is subjected to external impact, the movement displacement of the helmet can achieve the effects of unloading force and relieving head injury.

The utility model provides an aviation safety seat, belongs to the technical field of seats, and solves the technical problem that an existing aviation seat cannot accurately and flexibly restrain the head and the upper body of a user. An aviation safety seat comprises a seat body, a seat back rotationally connected to the upper portion of the seat body, armrests rotationally connected to the two sides of the seat back and a headrest fixedly installed on the upper portion of the seat back, and two limiting blocks are oppositely arranged on the upper portion of the seat back in a telescopic mode through limiting assemblies and located on the two sides of the headrest. According to the automobile seat headrest, the limiting blocks are arranged on the two sides of the headrest in the telescopic mode, the limiting blocks can conduct synchronous telescopic limiting on the two sides of the head of a user, and the head of the user is prevented from being hurt and collided; the user can be fixedly connected with the lock catch through the second safety belt, three-point type safety binding of the seat is achieved, and the seat is reasonably connected with an existing two-point type safety belt.

This utility model discloses a compressible engine hood buffer block and a car with pedestrian protection in mind, relating to the field of automotive safety design. It includes: a cylindrical housing comprising an upper housing and a lower housing connected to each other, with a connecting hole at the top of the upper housing; a spring, one end of which is fixed inside the lower housing and positioned along the axial direction of the housing; a buffer block body, the middle of which is disposed through the connecting hole, with one end of the buffer block body outside the housing for connection to the engine hood, and the other end of the buffer block body inside the housing engaging with the inner wall of the upper housing; and a support block disposed inside the housing, with both ends connected to the spring and the buffer block body, respectively. When the engine hood with the buffer block installed is normally closed, after a pedestrian collision, the buffer block body is compressed and retracted into the housing after being subjected to the impact force, causing the engine hood to shift downwards a certain distance, creating a larger energy absorption space for head impacts and reducing head injury.

This invention discloses an adaptive head protection method considering pedestrian biometrics in emergency situations. Based on a finite element model of the pedestrian's emergency posture and the current vehicle speed, a head position prediction model is used to obtain different vehicle states at the time of collision. The collision position of the pedestrian's head under different vehicle states is determined. Based on the predicted intracranial pressure, the optimal vehicle state is selected, corresponding to the lowest intracranial pressure. The front bumper beam is adjusted according to the position of the front bumper beam corresponding to the optimal vehicle state. The brake pedal is controlled according to the vehicle speed corresponding to the optimal vehicle state. The steering wheel is controlled according to the vehicle angle corresponding to the optimal vehicle state to obtain the corresponding vehicle angle. This invention can minimize damage when a collision is unavoidable, thereby effectively protecting the pedestrian's head. It can automatically obtain the corresponding head injury situation based on different pedestrian vital signs and emergency postures, and adaptively adjust the vehicle state.

The invention discloses a replaceable medical helmet inner pad of a subarea gradient negative Poisson's ratio structure and an optimization method of the replaceable medical helmet inner pad, and belongs to the technical field of medical instruments and rehabilitation protection. The problems that an existing medical helmet is not targeted in energy management, limited in rotation response inhibition, poor in comfort, high in replacement and adaptation cost, long in optimization design period and slow in convergence are solved. Wherein the helmet inner pad is of a subarea gradually-changed negative Poisson's ratio sandwich structure and comprises an upper spreading layer, a middle negative Poisson's ratio unit layer and a lower sliding layer, and individualized adaptation is achieved through a replaceable splicing piece module; according to the optimization method, a design optimization closed loop is formed by combining parameterized design, a multi-modal agent model and trust region multi-target Bayesian optimization. According to the invention, the head injury index and the peak angular velocity are reduced in a short stroke, the specific energy absorption is improved, and meanwhile, the lightweight, the comfort and the maintainability are considered.

The embodiment of the invention provides a head injury index information determination method and device, equipment and a storage medium, and relates to the technical field of head injury. The method comprises the steps that prediction data of head injury index information are obtained, the prediction data are input into a pre-trained head injury prediction model, the head injury index information is output through the head injury prediction model, and the head injury index information is an index for evaluating the potential injury degree caused to the head in vehicle collision. By adopting the technical scheme, the head injury index information can be quickly and accurately calculated, and the requirement on computing resources is reduced.

The utility model belongs to the field of common vehicles, and particularly relates to a backrest assembly for a passenger car, an energy-absorbing seat for the passenger car and the passenger car. In order to reduce the cost and the head injury value, the utility model provides the backrest assembly for the passenger car. The backrest assembly for the passenger car comprises a backrest framework, backrest sponge installed on the backrest framework and an air bag used for buffering the head of a human body when the passenger car collides, and the air bag is embedded in the backrest sponge and used for being extruded by the head of the human body to be locally broken when the passenger car collides so as to be used for reducing the injury value of the head. The utility model further provides an energy-absorbing seat for the passenger car and the passenger car, wherein the energy-absorbing seat is applied to the backrest assembly for the passenger car. When the passenger car collides, the head of a passenger in the back row collides with the air bag, the air bag is pressed to deform and is locally broken, and air is exhausted from the broken position to release energy, so that the maximum acceleration of the head of the passenger in the back row is reduced, and the damage value of the head is reduced. The head of a passenger in the back row is buffered through the air bag, cost is low, and the effect is good.

The present disclosure relates to a diagnostic assistance device and method for predicting worsening of intracranial hemorrhage in a head trauma patient on the basis of an artificial intelligence model. The diagnostic assistance device for predicting worsening of intracranial hemorrhage in a head trauma patient according to the present disclosure may comprise: a communication unit configured to receive a head CT image of a patient; and a processor including an artificial intelligence model trained to convert the input CT image into a 3D image and predict whether intracranial hemorrhage of the patient will worsen in the future by using the 3D image, wherein the CT image is an initial CT image captured after the patient has suffered head trauma.

Methods for preventing or treating brain neuronal diseases are provided. The methods include administering mesenchymal stem cells having increased agouti-related peptide (AgRP) expression or a conditioned medium thereof to a subject in need thereof. In some embodiments, the conditioned medium contains AgRP. The methods may further comprise administering ghrelin. The brain neuronal diseases include Alzheimer's disease, frontotemporal dementia, tauopathy, Parkinson's disease, amyotrophic lateral sclerosis, Huntington's disease, multiple sclerosis, stroke, thrombosis, embolism, head trauma, cerebral circulatory or metabolic disorders, brain dysfunction, and dementia.

This invention discloses a structure that improves the side impact resistance of a vehicle body, relating to the field of vehicle body anti-collision technology. It includes a frame and a mounting chassis, with a mounting groove on the chassis. It also includes a buffer guide mechanism to reduce the impact force of a side collision and an anti-deformation buffer mechanism to prevent deformation of the B-pillar due to excessive side impact force. The buffer mechanism includes a buffer guide component and a buffer component, and a guide groove is provided within the mounting groove. This structure, which improves the side impact resistance of a vehicle body, not only reduces the impact of oblique side impacts but also prevents B-pillar deformation during high-intensity side impacts, thus avoiding roof deformation and potential head injuries to occupants. Furthermore, it utilizes the vehicle's own collision inertia and the weight of the occupants to increase the strength of the buffer plate, thereby improving the vehicle's side impact resistance performance.

A method for assisting in the assessment of a subject's head injury caused by a fall event occurring to the subject is disclosed. The method is executed by a processor and includes, upon detection of the fall event, obtaining measurement data of the fall event over a period of time including the fall event, and generating an indication to assist in the assessment of the head injury based on the measurement data. The indication includes an animated fall trajectory of the subject's head during the fall event and within the space in which the fall occurs, and velocity data of the subject's head during the fall event.

The present invention discloses a novel, passive deflection-sensitive mechanism designed for applications such as helmets. This mechanism enhances safety by allowing the movement and decoupling of specific helmet parts when applied forces exceed a predetermined threshold. The mechanism comprises an anchor socket and a deflect pin, whose extended shaft facilitates deflection and decoupling of the connected parts of a helmet under lateral forces. This decoupling reduces rotational and linear forces on the brain during impact, thereby decreasing the risk of head injury and concussion. Prototype testing with this mechanism demonstrated a significant reduction in force applied to the brain, making it a promising solution for head protection equipment. While the mechanism is frangible and absorbs only a negligible amount of energy, it contributes to force reduction by enabling part decoupling upon impact. Additionally, the mechanism is adaptable for various applications requiring movement and detachment of parts under specific conditions.