53results about How to "Elongated length" patented technology

Absorbable stents and absorbable stent coatings have been developed with improved properties. These devices preferably comprise biocompatible copolymers or homopolymers of 4-hydroxybutyrate, and optionally poly-L-lactic acid and other absorbable polymers and additives. Compositions of these materials can be used to make absorbable stents that provide advantageous radial strengths, resistance to recoil and creep, can be plastically expanded on a balloon catheter, and can be deployed rapidly in vivo. Stent coatings derived from these materials provide biocompatible, uniform coatings that are ductile, and can be expanded without the coating cracking and / or delaminating and can be used as a coating matrix for drug incorporation.

Implants and associated delivery systems for promoting angiogenesis in ischemic tissue are provided. The implants may be delivered percutaneously, thoracically or surgically and are particularly well suited for implantation into the myocardium of the heart. The implants are configured to have a first configuration having a low profile and an expanded, second configuration having a large profile. The implants are delivered to the ischemic tissue location in the first configuration, implanted then expanded to the second configuration. The expanded implants maintain a stress on the surrounding tissue, irritating and slightly injuring the tissue to provoke an injury response that results in angiogenesis. The flow of blood from the surrounding tissue into the implant and pooling of the blood in and around the implant leads to thrombosis and fibrin growth. This healing process leads to angiogenesis in the tissue surrounding the implant. Additionally, the implants may contain an angiogenic substance or a thrombus of blood, preloaded or injected after implantation to aid in initiating angiogenesis.

An electric discharge machining apparatus includes a guide electrode that is tubular and receives a small-diameter wire electrode for electric discharge machining. The small-diameter wire electrode can freely slide within the guide electrode. A guide electrode holder holds the guide electrode at a specified position. Pressurized fluid is supplied into the guide electrode to feed the small-diameter wire electrode from the guide electrode. A small-diameter wire electrode holder automatically releases and grasps the small-diameter wire electrode in response to starting and stopping of the pressurized fluid supply, respectively.

This endpiece includes at least one end segment of each armor element, an end vault and a cover, the end vault and the cover delimiting between them a chamber for receiving the end segment and a material for filling the receiving chamber, in which the end segment is embedded. The endpiece includes a spacing member positioned so as to internally bear upon the end segments of the armor elements of at least one armor layer. This spacing member defining, on at least one end segment of a armor element of said armor layer, contact areas axially spaced apart along said end segment, the contact areas delimiting between intermediate contact spaces between the filling material and the end segment.

The invention relates to a direct current quick breaker, in particular to a direct current quick breaker with high requirement for short circuit breaking current. The breaker comprises a breaker body and an arc extinguish chamber, wherein the arc extinguish chamber comprises a pair of insulated shells and an arcing ring; the cavity of the arc extinguish chamber comprises a metal grid, an insulated grid and a transverse clapboard; the metal grid and the insulated grid are positioned in the middle of the arc extinguish chamber; the transverse clapboard is positioned on the upper part of the arcextinguish chamber; one side, which faces the bottom of the arc extinguish chamber, of the metal grid is a lower side provided with a notch having a downward opening; and two types of metal grids, namely a straight-panel metal grid and a U-shaped metal grid are provided. The breaker has the advantages of quickly establishing arc voltage, reducing the resistance of electric arc entering the arc extinguish chamber, lengthening electric arc, shortening arcing time, enhancing arc extinguishing capability of the arc extinguish chamber, along with simple structure, small overall dimension, convenient assembly and maintenance and the like.

Absorbable stents and absorbable stent coatings have been developed with improved properties. These devices preferably comprise biocompatible copolymers or homopolymers of 4-hydroxybutyrate, and optionally poly-L-lactic acid and other absorbable polymers and additives. Compositions of these materials can be used to make absorbable stents that provide advantageous radial strengths, resistance to recoil and creep, can be plastically expanded on a balloon catheter, and can be deployed rapidly in vivo. Stent coatings derived from these materials provide biocompatible, uniform coatings that are ductile, and can be expanded without the coating cracking and / or delarmnating and can be used as a coating matrix for drug incorporation.

The invention belongs to the technical field of oil throwing rings, in particular to an oil throwing ring for warp knitting machine lubrication, including a ring body, the ring body includes a first half ring body and a second half ring body engaged with each other, and the ring body is at least Composed of a first arc plate and a second arc plate, a hook is fixed at the end of the first arc plate far away from the second arc plate, and a hook is fixed at the end of the second arc plate far away from the first arc plate There is a hook seat; by setting two half-arc half-rings, the first arc plate and the second arc plate are elastically connected by a stretching shaft and a spring, and within the length of the stretching shaft, a relatively large diameter There is a diffusion plate on the shaft and the oil slinger outside the ring body. When the oil slinger extends below the oil liquid, more lubricating oil can be scooped out, so that when the oil slinger rotates, the More lubricating oil is brought out and splashed on the gears. The oil throwing plate can be inclined to both sides, so the splashing range is larger and the oil throwing efficiency is high.

The invention provides an anti-bubble axe-like head and a scientific research ship. The axe-like head is positioned at the bottom of a bow; a junction between the axe-like head and the bow is a concave part; a water line is intersected with the axe-like head due to the position of the axe-like head on the ship; the length of the axe-like head is not more than 8% of the length between perpendiculars of the ship; in side view, the axe-like head is a sheet body, the upper contour and the lower contour of the axe-like head are rounded, and the thickness of the axe-like head is gradually increased from the bow to the rear part of the ship; in the view of transverse section, a raised part of the axe-like head is slowly transitional from top to bottom, the largest width of the transverse section of the axe-like head does not exceed 20% of the maximum water line width, and the half entrance angle of the water line part is not more than 20 DEG. According to the invention, on the one hand, bubbles are furthest reduced and the flowing tendency of the bubbles along a ship body is improved so that influences of the bubbles on acoustic equipment embedded in the bottom of the ship are avoided; and on the other hand, the running resistance of the ship is reduced, the economic efficiency of the ship is enhanced, and both working performances of the acoustic equipment at the bottom of the ship and the resistance performance of the ship are preferably taken into consideration.

The invention provides a collarless round-collarband sewing process of an elastic fabric. The process comprises the following steps: cutting out round-collarband garment parts of the elastic fabric, wherein before sewing, a straight-silk lining bar with the width being 1cm is sewn to the back side of the neckline part in an adhesion manner, so that the problem that the collarband part is subjected to oblique-silk cutting, therefore, the size of the neckline can become large easily after sewing is solved; sewing the cut-out garment parts of the elastic fabric and the lining, wherein after sewing, the length difference between the contour line and the sewing line needs to be reduced; sewing an invisible line at the position, 0.1cm-0.2cm away from the sewing line, of the sewing edge, wherein when the invisible line of the collarband is sewn, an oblique-silk lining bar with the width being about 1.2cm is additionally sewn under the back side of the lining, and the side, with colloidal particles, of the oblique-silk lining bar is opposite to the back side of the lining; carrying out reverse ironing on the collarband, so that the oblique-silk lining bar is ironed to the elastic fabric in an adhesion manner, therefore, the sewing edge is fixed to the elastic fabric, further, the hardness of the elastic fabric is enhanced, finally, the support force is increased, and the problem that the sewing edge upwarps, consequently, the collarband turns outwards is solved.

A zoom lens system includes, in order from an object side to an image side, a first positive lens group (G1), a second negative lens group (G2), a third positive lens group (G3), and a fourth positive lens group (G4). The second and third lens groups are movable for varying the focal length. The zoom lens system offers a four-times zoom ratio, and employs two plastic aspheric lenses (L3, L9) and a resin hybrid lens (L6). The first lens group consists of two lenses (L1, L2) arranged in an abutting relationship. The second and third lens groups each includes a pair of cemented lenses (L4, L5; L7, L8).