43762results about How to "Reduce wear" patented technology

A valve prosthesis device is disclosed suitable for implantation in body ducts. The device comprises a support stent, comprised of a deployable construction adapted to be initially crimped in a narrow configuration suitable for catheterization through the body duct to a target location and adapted to be deployed by exerting substantially radial forces from within by means of a deployment device to a deployed state in the target location, and a valve assembly comprising a flexible conduit having an inlet end and an outlet, made of pliant material attached to the support beams providing collapsible slack portions of the conduit at the outlet. The support stent is provided with a plurality of longitudinally rigid support beams of fixed length. When flow is allowed to pass through the valve prosthesis device from the inlet to the outlet, the valve assembly is kept in an open position, whereas a reverse flow is prevented as the collapsible slack portions of the valve assembly collapse inwardly providing blockage to the reverse flow. The device is configured so that retrograde flow will be altered from laminar flow and directed towards the leaflets to effect closing.

The invention relates to a knee joint prosthesis having a bearing and a biologic ligament for replacing the articulating knee portion of a femur and a tibia. The knee joint prosthesis includes a femoral component, a tibial component, a bearing member, and a biologic ligament. The femoral component includes a first femoral bearing surface and a second femoral bearing surface. The tibial component includes a tibial bearing surface. The bearing member includes a first bearing surface which is operable to articulate with the first femoral bearing surface, a second bearing surface which is operable to articulate with the second femoral bearing surface and a third bearing surface which is operable to articulate with the tibial bearing surface. The biologic ligament is coupled to both the tibia and the femur to prevent the knee joint from dislocating and guiding the femoral component along a desired path during extension and flexion.

A robot or manipulator including a wireless power supply and a wireless communication device. One or more actuators on the robot tool may be wirelessly powered and wirelessly controlled. The robot tool may have one or more wireless communication members for transmission of data from sensors on the tool. The power supply includes a primary power supply member and secondary power supply member. Tool changes may be carried out automatically by the robot. In other aspects of the invention a method, a control system and a computer program for carrying out the method are described.

Modular fluidic microchips, systems integrating such microchips, and associated preparative and analytical methods are presented.

The invention discloses tile feeding driving mechanisms, tile feeding assemblies and a mahjong machine. Each tile feeding driving mechanism of the mahjong machine comprises a tile feeding support, a tile storage groove, a tile feeding guide rail, a tile feeding pushing head and a steel wire rope, rolling parts are arranged at the position, close to the corresponding tile feeding guide rail and/or the corresponding tile storage groove, of each steel wire rope, each rolling part is installed on the corresponding tile feeding guide rail or the corresponding tile feeding support in a rotatable mode, the part, located in the corresponding tile storage groove, of each steel wire rope are in rolling contact with the multiple rolling parts, and a gap is maintained between the part, located in the corresponding tile storage groove, of each steel wire rope and the corresponding tile feeding guide rail and/or the side wall of the corresponding tile storage groove. According to the scheme, sliding friction of steel wire ropes in the prior art is replaced with rolling friction of the steel wire ropes, friction resistance in the operation process of the steel wire ropes is greatly decreased, and the situation that the service life and operation stability of the steel wire ropes are influenced due to sliding friction contact between the part, located in the corresponding tile storage groove, of each steel wire rope and the corresponding tile feeding guide rail and/or the arc-shaped bent side wall of the corresponding tile storage groove is avoided.

Systems for mitral valve repair are disclosed where one or more mitral valve interventional devices may be advanced intravascularly into the heart of a patient and deployed upon or along the mitral valve to stabilize the valve leaflets. The interventional device may also facilitate the placement or anchoring of a prosthetic mitral valve implant. The interventional device may generally comprise a distal set of arms pivotably and/or rotating coupled to a proximal set of arms which are also pivotably and/or rotating coupled. The distal set of arms may be advanced past the catheter opening to a subannular position (e.g., below the mitral valve) and reconfigured from a low-profile delivery configuration to a deployed securement configuration. The proximal arm members may then be deployed such that the distal and proximal arm members may grip the leaflets between the two sets of arms to stabilize the leaflets.

A movement augmentation system that provides various forms of feedback, including real-time and post-performance for training and rehabilitation is disclosed. The systems, devices and methods provide augmentation to human movement behavior in order to accelerate acquisition of complex movement skills by a user and to mitigate injuries from poor movement technique (e.g., joint damage or muscle fatigue). An environment is provided that enables systematic and comprehensive capabilities through integration of its components.

A round-shank bit for a coal cutting machine or the like, having a bit head and a bit shank, wherein the bit head has a bit tip, maintained by a base element in a receptacle of the bit head. Starting at the base element, the bit tip tapers in a direction toward the free end of the bit tip, wherein the base element forms a maximum diameter of the bit tip, and wherein the bit tip has recesses on its outer contour. In order to assure good rotational behavior over the entire length of the operating time, the base element has the recesses on an outer circumference forming the maximum diameter.

One or more rigid components associated with an articulating bone are used to encase, encapsulate, contain, or otherwise protect a compressible/resilient member. The embodiments are applicable not only to artificial disc replacement (ADR) devices, but also to joint situations including total knee and hip arthroplasty. The cushion elements in the preferred embodiments include synthetic rubbers, hydrogels, elastomers, and other polymeric materials such as viscoelastic polymers and foam polyurethanes. The invention effectively combines the advantages of such materials (cushioning, shape memory, and expansion after insertion in the case of hydrogels), while providing increased protection, particularly the elimination of shear stresses. When applied to an ADR, the invention also minimizes the risk of extrusion.

Garniture tongue of a garniture device of a rod machine arranged for compressing a material. The garniture tongue includes a rod guide surface and the garniture tongue being composed at least in part of a steel alloy with high titanium carbide content. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

A flexible display device for displaying electronic information has a main body, a small screen, a reel mechanism, a scrolling display and a wrist strap. The screen is disposed on the main body for displaying information. The reel mechanism is disposed on the main body. The scrolling display is rolled and hidden in the main body by the reel mechanism for displaying information, wherein the scrolling display is a CLC display or an OLED display. The wrist strap connects with the main body for securing the main body around a wearer. The scrolling display has a screen puller connected to one side thereof for pulling out the scrolling display. The flexible display device is portable, and usable in a fixed state. In addition, the flexible display is not easily to get lost and lessens abrading of the monitor's surface of the scrolling display from usual wear and tear.

A disc implant is provided which maintains intervertebral spacing and stability of the spine. In an embodiment, a disc implant may include four or more components. Components of the disc implant may include engaging plates and two or more members positioned between the engaging plates. In certain embodiments, a disc implant may include a retainer positioned between one of the engaging plates and one of the members. Complementary portions of the implant components may allow for lateral movement, anteroposterior movement, and/or axial rotation of the engaging members relative to each other during use. In some embodiments, at least one of the members may include a stop to inhibit movement of adjacent vertebrae outside of normal physiological ranges.