54results about How to "Reduce lateral distance" patented technology

A system for treating mitral valve regurgitation comprises tensioning device that can be deployed using a delivery catheter. The device includes tension member linking a proximal anchor and distal anchor. The device is constructed from a material having suitable elastic properties such that the device applies a constant tension force between the anchors, while stretching or flexing in response to a heartbeat when positioned across a chamber of a heart. The anchors may include a plurality of arms. In some embodiments, the arms may also flex in response to a heart beat. When positioned across the left ventricle of a heart, the device can reduce the lateral distance between the walls of the ventricle and thus allow better coaption of the mitral valve leaflets thereby reducing mitral regurgitation.

A walking aid apparatus comprising a sitting member which a user sits astride and leg links each coupled to a connection provided on the undersurface of the sitting member in such a way as to be free to swing in the forward / backward direction, which improves the stability of the sitting member. The connection is adapted in such a way that a forward / backward swinging fulcrum of the leg links is located above the sitting member. More specifically, the connection is provided with an arc-shaped guide track longitudinal in the forward / backward direction and having the center of curvature above the sitting member, so that each of the leg links swings along the guide track in the forward / backward direction. If the leg links are allowed to swing freely also in the lateral direction, preferably the lateral swinging fulcrum of the leg links is also located above the sitting member.

A roller guide (1) for guiding stock in a longitudinal feeding direction (A) toward a pair of rolls for shaping the stock. The roller guide comprises a frame arrangement (2), a pair of guide rollers (3, 4) configured to, in a closed position, engage opposite surface portions of the stock,and positioning means for adjusting a lateral distance between the guide rollers. The roller guide further comprises detection means (13) configured to detect a longitudinal position of a piece of stock (20) with respect to the guide rollers. The positioning means is configured to adjust the lateral distance between the guide rollers in response to said detection.

The invention provides a grinding and polishing force control end execution device. The grinding and polishing force control end execution device comprises an outer shell, a pneumatic spindle, a grinding wheel, a cylinder, a movable piston, a tension and pressure sensor, a first limiting part and a second limiting part, wherein the pneumatic spindle vertically penetrates through the outer shell and is not fixed to the outer shell; the tail end of the pneumatic spindle is exposed to the outer shell and is fixedly provided with the grinding wheel; the air inlet end of the pneumatic spindle is insealing connection with an external air tank or an air pump; the movable piston is sleeved on a cylinder barrel of the pneumatic spindle and located in the outer shell; the cylinder is located in theouter shell, and the tension and pressure sensor is fixed to a telescopic rod of the cylinder; the tail end of the telescopic rod of the cylinder can apply horizontal and vertical force to the movable piston; the sidewall of the outer shell is provided with an arc-shaped square hole, and an outer cover is arranged at the arc-shaped square hole of the outer shell; and the first limiting part and the second limiting part are used for limiting the movable piston in the horizontal direction and the vertical direction correspondingly. The grinding and polishing force control end execution device realizes motion of the piston in the horizontal and vertical directions through one cylinder, and also realizes force control over the grinding wheel in two dimensionalities.