18 results about "Leg prosthesis" patented technology

Disclosed are prosthetic systems comprising a powered knee upper leg prosthesis and a volitional controller configured to provide control of the prosthesis to the user. The prosthetic system may be configured to enable a user to climb a set of stairs. The prosthetic system may be activated by the activation of an EMG signal source, such as the biceps femoris muscle of the upper leg. The volitional controller of the prosthetic system may be further configured to receive a ground state signal and / or an IMU signal to determine a target knee torque for operating the powered knee of the prosthesis.

1. The name of the design product: packaging of lower leg prosthesis. 2. The use of the design product: for packaging of thigh prosthesis. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: front view.

1. The name of the design product: calf prosthesis decorative shell (special edition). 2. The use of the design product: prosthesis decorative shell, which is suitable for the outer packaging of the calf bone type prosthesis. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: component 1 in use state reference drawing. 5. Other component descriptions that need to be explained: the design product is a component product, including component 1, component 2, component 3 and component 4, component 1 can be assembled with component 3 or component 4; component 2 can be assembled with component 3 or component 4.

This utility model discloses a lower leg prosthesis taking frame, including a taking cylinder body, a lower conical cylinder mounted at the bottom end of the taking cylinder body, a fixing ring mounted at the top end of the taking cylinder body, and a protective padding layer mounted inside the taking cylinder body; the taking cylinder body includes taking cylinder a and taking cylinder b arranged opposite to each other, and the protective padding layer includes a leg guard plate a mounted on the inner wall of taking cylinder a and a leg guard plate b mounted on the inner wall of taking cylinder b; the outer walls of both leg guard plates a and b are equipped with adaptation mechanisms, and the inner walls of both leg guard plates a and b are equipped with sponge padding layers; the lower end of the inside of taking cylinder a and taking cylinder b is equipped with a bearing cylinder, and the top end of the lower conical cylinder is equipped with a connecting cylinder, with the bearing cylinder inserted into the connecting cylinder; the design of this lower leg prosthesis taking frame better adapts to the structure of the human leg, which is wider at the top and narrower at the bottom, providing a more realistic fixation and support effect for the patient, reducing pressure on the patient's leg, and enhancing the use effect of the patient during prosthesis taking.

1. Name of the product in this design: Leg prosthesis sleeve. 2. Purpose of this design: To support the legs. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention relates to a method for controlling a lower leg prosthesis comprising a foot element, a lower leg element pivotably arranged thereon and an adjustable resistance device for applying a resistance against a swivelling of the foot element relative to the lower leg element, whereina first switching angle is defined as a predetermined ankle angle value between the lower leg element and the foot element,a second switching angle is defined as a predetermined lower leg angle value of the absolute angle of the lower leg,the method comprising the steps:at least also on the basis of a height difference between the position of the foot element in a step cycle and the position of the foot element in the previous step cycle, determining whether the wearer of the lower leg prosthesis is walking downhill, andincreasing the resistance of the resistance device to a predetermined resistance value when a block criterion is met,wherein the block criterion is metif it has been determined that the wearer is not walking downhill and the second switching angle is reached, orif it has been determined that the wearer is walking downhill and the switching angle reached later in the step cycle is reached.

A method and an apparatus for enhancing operation of a leg prothesis is provided. The apparatus includes a variable stiffness module configured to be attached between a first portion and a second portion of a leg prothesis. The first portion is configured to move relative to the second portion in a first plane during a first gait phase. The variable stiffness module defines an interior region configured to store pressurized fluid. A motor is configured to reduce a volume of the interior region during a second gait phase to increased an amount of stored energy of the pressurized fluid. The amount of stored energy is released during a third gait phase to assist a subject wearing the leg prothesis during the third gait phase.

1. The name of the design product: lower leg prosthesis decorative shell (one-piece dynamic static ankle). 2. The use of the design product: prosthesis decorative shell, the product is suitable for the outer packaging of lower leg skeletal prosthesis. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view 1. 5. Design 1 is designated as the basic design. 6. Other conditions that need to be explained: design 1 A-A sectional view is the A-A sectional view in the top view of design 1, design 1 B-B sectional view is the B-B sectional view in the top view of design 1, design 2 A-A sectional view is the A-A sectional view in the top view of design 2, and design 2 B-B sectional view is the B-B sectional view in the top view of design 2.

The application discloses a joint detachable artificial limb, which comprises a thigh artificial limb, a lower leg artificial limb and a foot artificial limb, a waistband is arranged above the thigh artificial limb, fixed blocks and magic tape thorn surfaces are fixedly connected to the front and back sides of the thigh artificial limb, a through slot is formed in the fixed block, a connecting belt is movably arranged in the through slot, and the magic tape hair surfaces are fixedly connected to the side of the connecting belt close to the thigh artificial limb.

Method and system for monitoring the gait of a user with a leg prosthesis (1, 2), comprising: a sensor device (3) configured to be inserted into a lower section of the prosthesis, wherein the sensor device comprises a force sensor (5), an inertial sensor (6) to obtain measurements of angular velocity, linear acceleration and orientation of the prosthesis while walking, and a control module (7) to process the measurements from the sensors and send them to a processor module; and a processor module to receive the measurements processed by the control module, compare them with reference information about the user's gait, determine whether the comparison exceeds a predetermined threshold and, if so, generate a warning signal.

This invention relates to the field of prosthetics technology and discloses a modular intelligent powered lower leg prosthesis, including an energy storage foot, an adapter mounting assembly fixedly connected to the top outer wall of the elastic module protective shell via a cable transmission module, a mounting component fixedly connected to the outer wall of the adapter mounting assembly, a drive module fixedly connected to the top outer wall of the mounting component, and a heat dissipation assembly fixedly connected to the side wall of the elastic module protective shell. It adopts a multi-module independently customized and quick-assembly structure, replacing the traditional one-piece structure, improving the adaptability of the prosthesis. Through the double locking cooperation of the insertion component and the positioning component, boltless rapid assembly is achieved, ensuring smooth and non-jamming assembly. After locking, the axial and radial positioning is firm, making it difficult to loosen when subjected to walking impacts. Furthermore, it relies on gait movement to achieve power-free follow-up heat dissipation, driving the heat dissipation assembly to form a suction and delivery airflow cycle, which can automatically expel heat from the closed cavity.

The utility model discloses an artificial lower limb capable of intelligently adjusting damping based on an IMU (Inertial Measurement Unit) and magnetorheological fluid. Comprising a stump mounting sleeve, an artificial thigh part, a knee rotary magnetorheological fluid damper, an artificial shank part, a leg telescopic magnetorheological fluid damper, an ankle rotary magnetorheological fluid damper, an artificial foot part, a foot telescopic magnetorheological fluid damper, an inertia measurement sensor, a first pressure sensor, a second pressure sensor and a damping controller, the stump mounting sleeve is arranged at the upper end of the thigh artificial limb part and used for being connected with a thigh amputation part, and the bottom end of the thigh artificial limb part is rotationally connected with the shank artificial limb part through the knee rotary magnetorheological fluid damper; the bottom end of the lower leg artificial limb part is connected with the artificial foot part through the ankle rotary magnetorheological fluid damper, a gravity center cavity is formed in the gravity center position of the whole artificial lower limb, and the inertia measurement sensor is installed in the gravity center cavity.

1. Name of the product in this design: Prosthetic footplate. 2. Purpose of this design: This design is intended for use in leg prostheses. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

1. The name of the design product: calf decorative shell (accessory set A). 2. The use of the design product: prosthesis decorative shell, the product is suitable for the packaging of calf prosthesis. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: refer to Figure 1. 5. Other circumstances that need to be explained: A-A sectional view is a top view A-A sectional view, B-B sectional view is a top view B-B sectional view, and C-C sectional view is a rear view C-C sectional view.

The application belongs to the technical field of human exoskeletons, and specifically discloses a thigh prosthesis knee joint exoskeleton and a control method thereof. The application comprises a driving module, a thigh fixing module, a shank fixing module and a knee joint connecting module, wherein the exoskeleton is fixed on the prosthesis through the thigh fixing module, the shank fixing module and the knee joint connecting module. The rotation movement of the motor output shaft is converted into the linear movement of the sliding block through the screw transmission mechanism in the driving module, and then the linear movement of the sliding block is converted into the rotation movement of the shank of the prosthesis around the rotation shaft of the knee joint of the prosthesis through the crank slider mechanism, and the size of the initial installation angle is set by the variable force arm characteristics of the crank slider mechanism, so that the output torque of the shank of the prosthesis can better match the gait of the user, thereby significantly improving the gait stability, power assistance efficiency and wearing comfort of the existing unpowered prosthesis.

1. Name of the product in this design: Leg prosthesis sleeve. 2. Purpose of this design: To support the legs. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model relates to the technical field of artificial limbs, and discloses a shank artificial limb sleeve with a protection function, which comprises an artificial limb sleeve main body, a fixing ring is arranged at the top of the artificial limb sleeve main body, a T-shaped groove is arranged on the inner side wall of the fixing ring, a plurality of sliding shafts are arranged in the T-shaped groove in a sliding manner, and connecting rods are convexly arranged on the sliding shafts. A first connecting piece is rotationally installed on the connecting rod, second connecting pieces are rotationally installed at the two ends of the first connecting piece, arc-shaped plates are fixedly installed on the two second connecting pieces, a plurality of fixing blocks are arranged on the inner wall of the bottom of the artificial limb sleeve body at intervals in the circumferential direction, and reset sliding grooves are formed in the fixing blocks; a reset sliding block is arranged in the reset sliding groove in a sliding mode, an arc-shaped supporting plate is installed on the top of the reset sliding block, a reset spring is arranged in the reset sliding groove, and the end, away from the reset sliding groove, of the reset spring abuts against the reset sliding block.