31results about How to "Maintain roundness" patented technology

A surgical suture is made of an elongate, hollow braid of high strength fibers. The braid defines an elongate, longitudinally-extending, central chamber that is open and without any core material extending therein so that, when a surgeon's knot is tied with the suture, the cross-sectional shape of the braid collapses upon itself and is reduced in size in response to pressures experienced when the knot is tightened thereby producing a low profile knot that resists slippage. Preferably, the braid is of a size corresponding to a USP size 5-0 to USP size 7 suture and has one or more, preferably a pair, of color contrasting monofilaments woven therein to enhance suture visibility. Methods of making a flattened suture and of utilizing the high strength suture to maintain body tissues in an engaged position to promote healing are also provided.

An inner peripheral edge of a toroidal glass substrate for a magnetic disk is subjected to mechanical polishing in such a manner that the surface roughness is no greater than 9 nm in terms of Rmax. Then, the inner peripheral edge is subjected to chemical polishing to remove at least 2 μm of a surface layer. The inner peripheral edge has a non-conventional mirror-finished surface obtained by mechanical polishing. Thus, sufficient ring strength is obtained even when the chemical polishing depth is smaller than in the past. A polishing depth of less than 5 μm is sufficient.

In one aspect, the invention relates to a pipette tip mounting shaft configuration and a disposable pipette tip having a matching configuration. The mounting shaft includes a locking section located above a lower sealing section. The locking section has outwardly extending locking lobes located above a stop member and a lower sealing section located below the stop member. In certain embodiments, the diameter of the mounting shaft below the stop member is reduced in order to lessen insertion and ejection forces, which is particularly helpful for hand-held multi-channel pipettors. In these embodiments, the lower sealing section contains either a frustoconical sealing section, or an annular groove and a sealing ring, such as a flouroelastomeric O-ring seal. When the mounting shaft is fully inserted into the collar of the mating disposable pipette tip, the tip locks onto the mounting shaft. The bore of the pipette tip includes a circumferential shelf or shoulder separating its upper collar from the tip sealing area which is located below the circumferential shelf. The tip collar preferably includes a locking ring located at or near the upper opening for the mounting shaft. The dimensions of the collar, and in particular the distance between its circumferential shelf and the locking ring, are selected to match the dimensions of the mounting shaft between the stop member and the upper end of the locking lobes, thus locking the pipette tip in a secure, reliable position and orientation while using ergonomic insertion and ejection forces. The locking lobes preferably include a ramp portion that gently flexes and distorts the pipette tip collar out of round as the mounting shaft is inserted in the pipette tip, rather than stretching the tip collar. The circumferential shelf on the pipette tip between the tip collar and the barrel isolates the sealing area at the upper end of the barrel from distortion, thus facilitating reliable sealing engagement between the lower sealing section of the mounting shaft and the sealing ring in the upper end of the barrel of the pipette tip.

The present invention relates to a filler and a cable having the same and, more particularly, to a filler and a multicore cable comprising a plurality of core portions, which comprises a conductor, and a protective layer that surrounds the core portions, the filler being provided between the core portions and the protective layer of the multicore cable, the filler being characterized by comprising: frame portions comprising a first frame portion and a second frame portion, which are rotated by predetermined angles towards both sides about the center portion thereof and then incised; and a support portion provided between the frame portions so as to connect the frame portions to each other.

Four knurls are formed by a molding apparatus (31) to be evenly spaced circumferentially on and protrude from an outer circumferential surface of an armature shaft (14). The molding apparatus (31) has a first mold (32) and a second mold (33), which are movable in directions of being close to and separating from each other, wherein the first mold (32) is provided with a pair of first molding edges (43) and the second mold (33) is provided with a pair of second molding edges (45). The respective molding edges (43) and (45) are formed into parallelogram sections, which have cutting faces (51) and (61) parallel to a moving direction of the second mold (33), extrusion faces (52) and (62) formed at acute angels with respect to the cutting faces (51) and (61), and load supporting faces (53) and (63) parallel to the extrusion faces (52) and (62). By pressing those molding edges (43) and (45) against the outer circumferential surface of the armature shaft (14), the knurls is formed.

Even when a radial length of a swing arm is increased, no gap is generated between adjacent segments, and tires of various sizes can be handled while roundness of a drum is maintained. An expandable molding drum has a plurality of segments constituting a circumferential surface, the molding drum having a plurality of swing arms having one end portion swingably connected to an outer circumferential surface of a cylindrical slider externally fitted with a drum shaft and having the other end portion swingably connected to the segment and expanding/contracting the segment along with movement of the slider in a drum shaft direction, and adjacent end portions of one end portions of the swing arms being swingably connected to the outer circumferential surface of the slider at intervals from each other in the drum shaft direction.

Groove holes capable of positioning each of the segment cores with respect to a winding jig in an arc attitude with wide gaps between the teeth edges of respective pole teeth are respectively formed in yoke parts positioned at both end parts of each of the segment cores in a longitudinal direction.

The invention discloses a traditional Chinese medicine pill for treating myopia, and a preparation method of the traditional Chinese medicine pill, and is a medicine for treating eye diseases. The traditional Chinese medicine pill is prepared from 5-25g of fructus schizandrae, 5-25g of rhizoma acori tatarinowii, 5-25g of rehmanniae radix, 5-25g of semen plantaginis, 5-25g of semen cuscutae, 5-25gof Poria cocos (Schw.)Wolf. roots, 5-25g of fructus lycii, 5-25g of radix polygalae, 5-25g of carthami flos, 5-25g of pericarpium citri reticulatae, 5-25g of fructus corni, 5-25g of rhizoma chuanxiongand 5-25g of radix salviae miltiorrhizae.