792 results about "Weight-bearing" patented technology

A knee joint prosthesis is provided for implanting on the tibial plateau and femoral condyle of the knee. The prosthesis includes a tibial prosthesis having a tibial fixation surface on the tibial prosthesis adapted to be positioned on the tibial plateau. The tibial fixation surface has at least one tibial attachment means for securing the tibial prosthesis to the tibial plateau. It further includes a femoral prosthesis having a femoral fixation surface adapted to be positioned on the femoral condyle. The femoral fixation surface has at least one femoral attachment means for securing the femoral prosthesis to the femoral condyle. The prosthesis further includes a bearing member supported by the tibial prosthesis for engaging the femoral prosthesis in weight bearing relationships.

A system, device and method are disclosed for minimally invasive lateral intervertebral fixation. An intervertebral fixation device includes a weight-bearing shell configured to fit into a disk space between plural vertebrae, the weight-bearing shell including a keyway opening between and through plural sidewalls. A first plurality of anchors is rotatably disposed in a first orientation in relation to the weight-bearing shell. A second plurality of anchors is rotatably disposed in a second orientation in relation to the weight-bearing shell. A key is adapted to rotate the first plurality of anchors in divergent directions from the second plurality of anchors and to secure a first vertebra and a second vertebra, respectively. The key is further adapted to support the first plurality of anchors and the second plurality of anchors in divergent directions in relation to the weight-bearing shell, the first plurality of anchors and the second plurality of anchors secured to the first vertebra and the second vertebra.

A ligament and bone conserving prosthesis for total knee resurfacing includes a distal femoral component which resurfaces the weight bearing portions of both femoral condyles and the trochlear groove. The prosthesis also includes implants to independently resurface the medial and lateral tibial plateaus in an inset manner. Also disclosed are apparatus and methods for performing the total knee resurfacing utilizing a minimally invasive, bone and ligament conserving manner.

Articulating devices for replacing damaged or degenerated weight bearing joints are provided. The devices may have two or more surfaces that articulate against one another that are coated or fully formed of PEEK or similar materials to provide improved wear capabilities while maintaining sufficient strength to operate in a weight bearing capacity.

A portable, self-learning adaptive weight bearing monitoring system for personal use during rehabilitation of orthopedic patients with fractures of the lower extremities. The system includes a flexible insole which is worn inside the shoe. The insole includes pressure and/or force sensor that measure the GRF force applied at key bearing points under the foot or other portions of the patient's lower extremity. The sensors are, in turn, connected through an A/D converter to a CPU that is connected so as to drive a stimulator that delivers closed-loop sensory stimulation (electrical, mechanical, and/or audio) as feedback to encourage the patient to load the optimal target weight for the limb for which the weight bearing force is being measured. Accurate real-time monitoring of the weight bearing during physical rehabilitation is also provided, and, through the use of closed-loop sensory stimulation, the patient is given continuous feedback for improving rehabilitation.

A force sensor system for use in monitoring weight bearing on a location. The force sensor system comprises at least one a foot force sensor, a palm force sensor, and a knee force sensor. The foot force sensor comprises a flexible insole containing a plurality of inflatable pockets that are inflated with air or liquid. The palm force sensor and knee force sensor each comprise a wrap to be worn around the palm and knee, respectively. Each wrap comprises a pocket. Each pocket is connected to a tube that, in turn, connects with a pressure sensor and a connector coupling that is remote from the pocket. Each coupling contains a valve. The valve opens to allow inflation and deflation of each inflatable pocket. The pressure sensors measure the air or liquid pressure within each of the inflatable pockets, and convert the corresponding pressure signal into a suitable output signal medium, usually electrical signals. The output signal from the sensors provides accurate real time input data to a weight bearing biofeedback system or to control a stimulator for activation of an electronic orthosis to normalize dynamic gait patterns.

A plug-in network appliance is disclosed. In one aspect, a network appliance performs a bridge between two wireless communication formats. In another aspect, a network appliance is deployed to perform position location services. In another aspect, a mesh network comprising one or more network appliances is deployed. A mesh network comprising one or more network appliances may be deployed to perform position location services. A plug-in form factor is described. A network appliance may convert power received from a plug in a first format to power in a second format for powering various components. A network appliance may connect with a wireless network and/or a network connected through a plug. A plug-in network appliance may connect to a weight-bearing outlet. Various other aspects are also presented.

A hoof boot has a base, a heel captivator, and a pivoting mechanism that disposes the heel captivator to pivot relative to the base, preferably in a manner that allows the heel captivator at least three degrees of freedom of movement relative to the base. The heel captivator is preferably low in the rearmost portion, which provides clearance for the pastern bones of the equine lower leg to descend upon weight bearing during movement at various gaits. To reduce the possibility for bruising and chaffing of soft tissue around the pastern bones, and to help eliminate accumulation of debris, preferred heel captivators have an open mesh architecture. Heel captivators can alternatively or additionally be designed with fabric covered neoprene or other liners. Boots are preferably tightened using mechanically advantages laces.

A seat occupancy display system which includes a seat occupancy sensor array with individual sensors. Each sensor is configured to detect the weight bearing thereon and to output an occupancy signal. Individual sensors can be configured to provide a location identification thereof. An interface circuit communicates the occupancy signals to a central processor which is configured to create a data file representative of the seat occupancies in the seating arena. A display coupled to the central processor is configured to display either a list of occupied seats and/or a map of the seats with an indication of which seats are not occupied. Also, orders for refreshments or other items can be ordered at each seat and the orders can be transmitted to attendants for real time payment and delivery.

An improved bone screw is disclosed which includes a shaft with distal portion having a threaded surface thereon, a sleeve having an opening which receives the shaft such that the shaft is able to move within the sleeve without moving the sleeve. A compressive device may be incorporated between the sleeve and the proximal portion of the shaft such that the compressive device forces the shaft and sleeve towards each other, thereby maintaining the compressive load at the union of the fracture. As additional compression is exerted on the load from weight bearing, the force may be reduced, but the head of the sleeve is still substantially maintained against the lateral cortex.

A method and apparatus for providing a topographical map of the bottom of a patient's rear foot with the foot in a semi-weight bearing condition and in the neutral position. A flexible membrane defines the top of an air cushion that captures the patient's foot in the neutral position when the air pillow is inflated. The membrane also conforms to the bottom of the foot. A three-dimensional scanner located below the membrane measures the distances to the bottom of the membrane over an array of positions. A manufacturing facility converts these measurements into information by which computer numerical controlled equipment machines an orthotic insert for the patient's footwear.

A cantilevered shoe construction for preventing knee and hip osteoarthritis. The shoe construction includes a cantilevered foot support with an anchored lateral side and a fully or partially cantilevered medial side. The cantilevered foot support transfers forces, otherwise transmitted through the medial aspect of the shoe and foot, to the lateral side of the shoe and foot, thereby reducing the knee varus and hip adductor torques to prevent or delay onset of knee and hip osteoarthritis and reducing the ankle joint adductor torque to reduce the risk for ankle sprain injury. The reduction of these joint torques also maintains posture without counterbalancing muscle activity, thereby improving muscle efficiency and performance during weight bearing activities and reducing the tendency for musculoskeletal injury. A spring loading effect of other embodiments enhances the natural coronal foot progression during gait so as to enhance the push off phase of gait.

Aging, injury and/or other pathologies of joints, especially weight bearing joints, contribute to changes in natural biomechanics. Deviations from optimal biomechanics lead to acceleration of the natural history of joint pathology and ultimately osteoarthritis. A Magnetic Vector Control System made up of an assembly of magnetic field sources can be disposed at or near a joint typically on or in adjacent bones of the joint, on one side of a first mechanical axis that creates a torque or moment about a second different axis of the joint, that intersects the first mechanical axis, to decrease the joint reactive force at the joint surface or equivalently substantially shift the first mechanical axis to a new or preferred position.

There is provided an inflatable mattress and coverlet used to reduce and treat decubitus ulcers. The mattress is an air inflatable mattress and is particularly adapted for use on a bed in a hospital, nursing home, health care facility or the like. The air inflatable mattress has a series of apertures on the top allowing small amounts of air to pass through to the underside of the coverlet. According to one aspect of the invention the coverlet is placed over the top of air inflatable mattress in the central portion thereof between the head of the bed and the foot of the bed. The coverlet is of sufficient length to extend under the weight bearing portions of the patient. The coverlet has as a first layer a moisture wicking fabric, such as a polyester, and on one side of the moisture wicking fabric there is attached a microporous polymeric member which allows air from the mattress to pass through the coverlet to the patient. Adjacent the polymeric member is another layer comprising a spacer fabric. The side edges of the coverlet form a drip edge and may be attached to the mattress by suitable means.

The present invention relates to an apparatus and method for lower-limb rehabilitation training of a patient with lower limb paralysis. The invention measures the usage of the paralyzed lower limb, and based upon the measurement, forces patients with lower limb paralysis to use partially paralyzed muscles which they are not likely to use. The apparatus can measure the weight load and the angle of the joint, and by using the measure values as variables, display the condition of paralysis to the patient so that he/she can recognize his/her present condition of paralysis, and enable the user to training through feedback. The joint includes all of knee joint, ankle joint and hip joint of the lower limb, and the movement of important muscles of the lower limb can be detected. With the apparatus attached, the patient can perform a balance training of alternatively raising the paralyzed lower limb and the normal limb, a standing training of bending and straightening both knees of the lower limbs and a walking training of using the both lower limbs.

An exercise device providing an exterior sheath for a standard Olympic weight bearing bar that secures the bar and weight while providing access to the bar for gripping and also providing secure handles which are perpendicular to the bar and parallel to the torso, providing alternate gripping posture for alternate exercise paradigms.

The invention relates to a pipeline ditch detecting robot system which comprises a robot, a control box and a cable connected with the robot and the control box. The robot comprises a vehicle body, walking mechanisms, a lifting mechanism and a pan-tilt camera shooting device. The side face of the vehicle body is in the shape of a big-end-up trapezoid. The walking mechanisms are two sets of crawler type walking mechanisms on the two sides of the vehicle body. Each crawler type walking mechanism comprises a driving wheel, a guide wheel, two track rollers, a plurality of weight bearing wheels and a track, wherein the driving wheels, the guide wheels, the track rollers and the weight bearing wheels are sleeved with the tracks. The driving wheels and the guide wheels are arranged at the two ends of the upper portion of the vehicle body, track guide wheels are arranged between the driving wheels and the guide wheels, and the weight bearing wheels are arranged at the lower end of the vehicle body to bear the vehicle body and elements on the vehicle body. The system is simple in structure, has complete functions, is convenient to operate, and can adapt to more complex conditions.

There is provided a foot support conforming to a user's foot. The foot support includes a supportive member defining a front portion, a rear portion and an arch portion for engagement against the foot plantar arch. The rear portion has a concave periphery formed for partial resting abutment of the person's heel. The supportive member is fabricated from thermoplastic material formed to shape in a custom application. Preferred materials are thermoplastic materials providing easily formable shapes that soften or react at a low temperature between and are capable of being molded and shaped with hand pressure to the bottom of the foot while the foot is in a non-weight bearing position. Subsequently the thermoplastic material hardens retaining the molded shape. In a second embodiment, a footbed assembly having a cushioning top layer overlaying the upper surface of the molded supportive member is provided. The invention also contemplates a method for custom forming the supportive member.

The invention discloses a six-degree-of-freedom humanoid robot arm, and relates to a robot arm. The invention aims to solve the problems that the existing robot arm is cumbersome in joint structure, heavy in self weight, low in load bearing ratio and complicated to control. A shoulder rotating joint, a shoulder joint, an upper arm, an elbow rotating joint, a elbow swing joint, a fore arm, a wrist rotating joint, a wrist swing and a hand are sequentially arranged from top to bottom, wherein an arm swing motor is connected with a worm by virtue of a conveyor belt, an arm rotating motor is connected with a shoulder swing support by virtue of a conveyor belt, an upper arm shell is arranged between a shoulder joint and an elbow joint, an elbow rotating drive motor and a speed reducer are sequentially arranged in the upper arm shell from top to bottom, an elbow swing joint motor is arranged in an elbow joint shell and is connected with an elbow joint conveyor belt, an elbow joint speed reducer is arranged in the elbow joint shell, a hand connecting support is arranged between the fore arm and the hand, a wrist joint swing motor is arranged on one side of the hand connecting support, and a wrist joint rotating motor is arranged at the upper end of the hand connecting support. The six-degree-of-freedom humanoid robot arm is applied to a humanoid robot.