52results about How to "Elongated length" patented technology

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.

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.

A basic ion optical system having a guaranteed capability for the temporal focusing of ions, including sector-shaped electrodes, an injection slit and an ejection slit, is arranged on the same plane. Four or more sets of the basic ion optical systems are arrayed at predetermined intervals in a direction substantially orthogonal to the aforementioned plane. The injection slit on a topmost basic ion optical system plane and the ejection slit on a basic ion optical system plane located immediate below, as well as the injection slit on a bottommost basic ion optical system plane and the ejection slit on a basic ion optical system plane located immediate above, are respectively connected by another type of basic ion optical system having a guaranteed capability for the temporal focusing of ions. The other injection slits and ejection slits are respectively connected by another type of basic ion optical system having a guaranteed capability for the temporal focusing of ions. Thus, a loop orbit having a three-dimensionally deformed figure “8”-shape is formed, whereby the flight distance is elongated while ensuring the temporal focusing of the ions for the entire system, simultaneously with utilizing the three-dimensional space to compactify the ion optical system.

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 polylactic 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.

The invention provides a multi-stream, high-temperature and low-oxygen and low NOx horizontally combined type single heat storage burner and belongs to the technical field of single heat storage combustion devices on heating furnaces and heat treatment furnaces. The burner comprises a porous burner block, an air heat storage box, a heat storage body and a coal gas spray pipe; the porous burner block and a furnace wall are formed by pouring the same refractory castable integrally; the porous burner block is mounted at the front end of the air heat storage box; the heat storage body is mounted in the air heat storage box; the coal gas spray pipe is mounted in the air heat storage box; the front end of the air heat storage box extends into the furnace wall for 150 mm and is welded to a furnace wall steel plate. The burner has the advantages as follows: combustion air can be preheated to 1000 DEG C or above, preheating efficient recycling is realized and fuel consumption is reduced. Meanwhile, a lean oxygen combustion mechanism is adopted, so that lean oxygen combustion of fuel in the furnace is realized, generation of NOx is effectively restrained in the combustion process and pollutant discharge is reduced greatly.

A method for manufacturing large diameter tapered roller bearing cages (10B). A straight metal strip, coil or plate of cage blank material (10), precisely dimensioned in width, length and thickness, with or without windows or pockets pre-cut, is fed into a rolling mill (100). The rolling mill incorporates a pair of unparallel forming rolls (102A, 102B) disposed such that the gap (G) there between forms a wedge shape. As the cage blank material (10) is fed through the wedge-shaped forming roll gap (G), one lateral side of the cage blank material is plastically deformed to reduce its thickness (T) and to elongate its length, while no deformation or only a very slight deformation is introduced to the other lateral side of the cage blank, thus forming the cage blank into an arc shape. A third roll (104) disposed in exit side of the forming rolls (102), in a pre-calculated position, bends the rolled cage blank into a circular conical ring (10A). After the entire cage blank is rolled into the conical ring configuration, the conical ring may pass through the rolling mill (100) again for a final resizing. Adjacent butt ends (12A, 12B) of the formed conical ring cage blank (10A) are aligned and joined together during the assembly process to form the large diameter tapered roller bearing cage (10B).

The invention relates to the field of lamps and discloses a heat-dissipation type LED (Light Emitting Diode) lamp. The heat-dissipation type LED lamp comprises a lamp body, a lamp cap, a lamp holder and a lamp shade, wherein the lamp body is connected to the lamp cap; the lamp cap is in threaded connection with the lamp holder; the lamp shade covers the lamp body; foldable memory metal is connected between the lamp holder and the lamp shade; a plurality of holes are formed in the foldable memory metal; a first elastic sleeve is connected onto the lamp holder in a sliding manner; a second elastic sleeve sleeves the first elastic sleeve in the sliding manner; the second elastic sleeve is connected to the lamp shade; an expansion block is arranged between the second elastic sleeve and the lamp shade; a spring is connected between the first elastic sleeve and the memory metal; a first through hole is formed in the first elastic sleeve; a second through hole is formed in the second elastic sleeve; the first through hole and the second through hole are formed in a staggered manner; the first elastic sleeve is positioned on the outer side of the memory metal; the lamp shade is a transparent heating expansion body. Compared with the prior art, the heat-dissipation type LED lamp has the advantages of better heat dissipation effect, better illumination brightness, low production cost and long service life; the heat-dissipation type LED lamp can be popularized and used.

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 the technical field of leveling of metal strips, in particular to a leveling device. The leveling device comprises a base plate, a leveling wheel, a guide plate and a tensioning wheel, wherein the base plate is horizontally arranged, the leveling wheel is installed at the first end of the base plate, the guide plate is perpendicularly installed in the middle of the base plate, the position of the guide plate can be changed, the tensioning wheel is installed on the bottom of the guide plate, the guide plate is perpendicular to the base plate, and the included angle between the line connecting the tensioning wheel with the leveling wheel and the line connecting the first end with the second end of the base plate changes along with the change of the installation position of the guide plate. By the adoption of the structure, when the leveling effect needs to be adjusted, a user just needs to change the installation position of the guide plate on the base plate. Meanwhile, the leveling device is simple in structure and convenient to manufacture and assemble. In the prior art, a leveling mechanism is complicated in structure, and a leveling device needs to be adjusted complicatedly. In this way, compared with the prior art, the leveling device has the advantages that adjustment convenience is greatly improved, and cost is reduced.

The invention discloses a multi-stage combustion energy-saving environment-friendly burner, and belongs to the technical field of energy conservation and environmental protection. The burner comprises a burner overhaul cover plate, a combustion air inlet, a heat accumulator, a heat insulation material, a fire-resistant pouring material, a large-hole baffle brick, a high-temperature gas distribution chamber, a natural gas sprayer, a primary air spinning disk, an anchoring nail, a primary air inlet, a first connecting flange, a natural gas inlet, a grille plate, a second connecting flange, a bolt connector and a burner installation positioning plate, the burner overhaul cover plate is fixed on a low-temperature gas distribution chamber through the second connecting flange and the bolt connector, a steel pipe of the combustion air inlet is welded on the low-temperature gas distribution chamber, and the heat accumulator is mounted in a heat accumulation burner box. According to the burner, the advantages of air classifying combustion technique are sufficiently played, NOx generation is effectively restrained by the aid of oxygen-deficient combustion mechanism, and the discharge amount of pollutants such as nitrogen oxide is greatly reduced.

The invention relates to a dormitory lamp turnoff rod. The dormitory lamp turnoff rod comprises an outer short rod and a connecting structure; soft cushion layers are distributed around the outer wall of the outer short rod; a back cover is arranged at the back end of the outer short rod; the connecting structure is arranged on the back surface of the back cover; the front end of the back cover is connected with a rotating shaft; a limiting disc is arranged at the front end of the rotating shaft; a fixed shaft is placed at the front end of the limiting disc; embedment columns are distributed at the front end of the fixed shaft; inner short rods are connected to the front ends of the embedment columns; an outer long rod is connected to the inner wall of the tail end of the outer short rod; and inner long rods are distributed on the inner wall of the outer long rod. As the outer short rod and the soft cushion layers are provided and bonded with each other, and the length design of the whole outer short rod meets a certain ergonomics, the use habits of users can be effectively met; and meanwhile, the soft cushion layers are manufactured by adopting rubber materials, and can be effectively bonded with hands of the users, so that the friction coefficients with the hands are improved to prevent falling.

A multifunctional drawing table for industrial design comprises a first base and a second base, universal wheels are installed under the first base and under the second base, an electric lifting column is vertically installed on the first base, a first U-shaped supporting piece is installed at the telescopic end of the electric lifting column, a first sleeve, a second sleeve and a third sleeve arefixed to the upper end of the first U-shaped supporting piece, a hollow table leg is vertically fixed to the second base, an adjusting table leg is inserted into the hollow table leg, a second U-shaped supporting piece is fixed to the upper end of the adjusting table leg, and a first transverse rod, a second transverse rod and a third transverse rod are fixed to the upper end of the second U-shaped supporting piece; the other end of the first transverse rod is inserted into the first sleeve, the second sleeve and the third sleeve respectively, a transverse movement adjusting mechanism is arranged on the first sleeve, the second sleeve and the third sleeve, an angle adjusting mechanism is arranged on the transverse movement adjusting mechanism, a drawing board is arranged on the angle adjusting mechanism, and a controller is arranged on the drawing board. The multifunctional drawing table has the beneficial effects of being simple in structure and high in practicability.

The invention relates to a leg protector for field hiking. The leg protector comprises a leg protecting sleeve and a shoe protecting sleeve. A sleeve hole is formed in the upper edge of the leg protecting sleeve, an adjusting rope penetrates the sleeve hole, a tightness adjusting belt is arranged at the lower edge of the leg protecting sleeve, the upper edge of the shoe protecting sleeve and the lower edge of the shoe protecting sleeve are connected into a whole, a stamping fixing belt is arranged inside the shoe protecting sleeve, openings are formed in the side faces of the leg protecting sleeve and the shoe protecting sleeve, and pasting belts are arranged at the opening. Vegetations are prevented from injuring inspectors in inspection and operation, pesticides are prevented from injuring skins, the leg protector has the function of connecting trousers with shoes, and foreign matters are prevented from entering the shoes and injuring the inspectors.

The invention provides a motor cover and a handheld dust collector. The motor cover comprises a motor housing, wherein an installation cavity suitable for being embedded into an airflow generator is formed in the motor housing; a motor air combing opening, which is formed in the top of the motor housing; an assembly opening, which is formed in the bottom of the motor housing; and a motor air outlet, which is formed in the side part of the motor housing. When the airflow generator is embedded into the motor housing, external airflow is sucked in through the motor air combing opening, and then the airflow is exhausted to the outside through the motor air outlet. The motion path of the airflow in the motor housing is that the airflow enters from the motor air combing opening in the top of the motor housing and then flows towards the bottom of the motor housing, and when the airflow moves to the motor air outlet, the motion direction of the airflow is changed and the airflow is exhausted outwards from the motor air outlet. The airflow moves along the motion path of a fold line, so that noise reflection is facilitated, part of noise is offset, and the noise reduction effect is achieved.