80results about How to "Avoid discounts" patented technology

The invention provides a preparation technique of a three-layer (inner, middle and outer layers) artificial blood vessel. The inner layer is composed of a smooth compact thin layer prepared by an ink printing method and can inhibit plasma protein and platelet adhesion, prevent acute thrombosis formation and provide axial mechanical support. The middle layer is formed by winding oriented micro fiber prepared by wet spinning or melt spinning, and mainly functions in guiding tissue cells to grow into gaps of the oriented fiber to realize oriented deposition arrangement of extracellular matrix, and the oriented micro fiber can provide radial mechanical support. The outer layer is formed by winding thick polymer fiber and closely bonded with the middle layer and mainly functions in preventing folding when the artificial blood vessel is bent. The artificial blood vessel prepared by the method can remarkably increase patency rate, can utilize microenvironment at an implanting position to realize quasi-natural reshaping and regeneration and has good application prospect in the aspects of coronary artery bypass surgery, hemodialysis and cerebral and peripheral blood vessel replacement.

The invention discloses a sheath-core for conveying an interventional device and a conveying system with the sheath-core. The sheath-core comprises a core tube, wherein a guiding tip and an interventional device fixing tip are fixed at the far end of the core tube, a mounting section for accommodating a device to be implanted is arranged on the core tube between the guiding tip and the implanting device fixing tip; a tube wall thickening layer is arranged on the periphery of the mounting section. The conveying system comprises a sheath tube, and the sheath-core which is arranged in the sheath tube and used for conveying the interventional device. The sheath-core for an interventional operation can be used for preventing the conveying system from bending in the forwarding process, and is high in safety. According to the conveying system, the bending direction controllability of the far end of the sheath tube can be improved, and a doctor can conveniently bend the far end of the sheath tube and move the far end of the sheath tube to a target direction or site through a traction wire, so that the operation difficulty can be lowered.

The invention provides a rolling method of a titanium steel composite board. The rolling method comprises the following steps of: 1, selecting the titanium steel composite board provided with a titanium plate as an upper layer and a steel plate as a lower layer; 2, pre-treating a surface; 3, heating and soaking in a heating furnace; and 4, rolling on a hot mill, and removing scale and cooling by utilizing high-pressure water. According to different physical characteristics of the titanium plate and the steel plate under the high-temperature state, through setting the proper heating and soaking processes, and adopting the high pressure water to remove the scale and cool in the rolling process, an oxide skin on the surface of the titanium steel composite board is greatly reduced, and sundries on the surface of the titanium steel composite board are eliminated, meanwhile, the titanium plate and the steel plate are cooled at different water flows, so that the deformation degree of the titanium plate corresponds to the deformation degree of the steel plate, head buckle or unwarp phenomenon of the titanium steel composite board in the rolling process can be effectively prevented, and damage about a roller is greatly reduced; and the titanium steel composite board, rolled by the invention, has the advantages of clean and tidy surface, no foreign matters to press and good plate cut.

A milk packaging film is a composite film formed by binding an outer film and an inner film via a binder layer. The outer film is a polyvinylidene chloride film, the binder is mono-component or two-component polyurethane solvent binder or non-solvent binder, and the inner film is a black and white polyethylene film. The manufacturing method of the milk packaging film comprises the steps of heating the outer polyvinylidene chloride film via a heating device; placing on an unwinding shaft of a film-coating machine; passing through an unwinding machine; adjusting via a flattening device, a tension control device and an edge guide device; coating binder; and laminating with the inner film treated by the flattening device, the tension control device and the edge guide device. The inventive milk packaging film has the advantages of high heat-sealing strength, high mechanical strength, stable chemical properties, resistance to oil and fat, solvent, acids, bases and salts, no chemical reactions with foods, good food sanitation performance, high-temperature steaming resistance, no deformation, no cracking, good printability, and low cost.

The invention provides a hand wiper capable of providing a towel and recovering the used towel the same length of the clean towel, which comprises a housing with shafts (1, 2); a towel spreading wheel sheathed on the shaft (1); a towel rolling wheel sheathed on the shaft (2); a press wheel (7) sheathed on a shaft (3); a press and adjusting mechanism (4) with the shaft (3) arranged thereon, wherein the outer circumference of the press wheel (7) is simultaneously pressed against the outer circumferences of the towel rolling wheel and the towel spreading wheel to form frictional transmission connection; and towel winding on the towel spreading wheel, wherein the free end of the towel extends out of the housing through the contact surface between the press wheel and the towel rolling wheel to form a wiping segment and then is wound on the towel rolling wheel.

The invention discloses a heating and rolling method for a wide thick titanium-steel composite plate. The heating and rolling method comprises the heating step and the rolling step. In the heating step, a titanium-steel composite plate blank is heated under the atmosphere of micro positive pressure and weak oxidability; heat preservation is conducted for 1.0-1.5 h at the temperature of 650 DEG C-700 DEG C in the preheating section; then, the temperature is rapidly increased to 880 DEG C-900 DEG C with 1.0-2.0 h in the heating section, and heat preservation is conducted for 1.0-2.0 h; and finally, heat preservation is conducted for 4.0-5.0 h at the temperature of 900 DEG C-930 DEG C in the soaking section. According to the method, in the heating step, heating of the titanium-steel compositeplate is uniform, the phenomena of head tearing, head buckling, upwarping and edge part folding in the titanium-steel composite plate rolling process are eliminated, the rolled plate shape is good, the surface is clean and tidy, edge part folding and foreign matter pressing-in are avoided, the performance is excellent, and the yield and the production efficiency are improved. The titanium-steel composite plate rolled through the method is free of the tearing phenomenon, the performance meets the GB/T8547 requirement, the surface is clean and tidy, edge part folding and foreign matter pressing-in are avoided, and the plate shape is good.

The invention discloses a modified BOPP composite film, and a preparation method of the composite film and an optical glue. The modified BOPP composite film comprises an upper protective layer, an using layer, an upper optical glue layer, a BOPP composite film, a lower optical glue layer, and a lower protective layer which are overlapped successively from top to bottom. The modified BOPP compositefilm is skillful and reasonable in structure design; the light transmittance rate reaches 90 to 97%; the haze degree is low; the light transmittance adjustable performance is excellent; bending resistance and excellent flexibility are achieved; folding mark is not easily cause; the comprehensive performance is excellent; function requirements of different liquid crystal display screens are satisfied; it is beneficial for production of flexible fixing of curved display screens, flexible coiled display screens, flexible folding display screens, and whole flexible display screens; and the suitable range is wide.

The invention relates to a garment cut-parts visible thread and invisible thread integrated ironing-free sewing production line, belongs to the technical field of garment sewing equipment, and aims toovercome the defects in existing garment cut-parts visible thread and invisible thread sewing to achieve automatic production. The garment cut-parts visible thread and invisible thread integrated ironing-free sewing production line comprises an invisible thread sewing machine, a cutting device, a cut-part turning mechanism, a cut-part transferring mechanism, a cut-part secondary transferring mechanism, a visible thread sewing machine, a heating ironing mechanism and a cooling setting mechanism, the invisible thread sewing machine is arranged on a frame platform, and a lining strip feeding mechanism is arranged on the invisible thread sewing machine and is coordinated with an upper cut-part and a lower cut-part which are arranged on the upper side and the lower side of the lining strip feeding mechanism to perform invisible thread sewing; the cutting device is arranged on the rear side of the invisible thread sewing machine; the cut-part turning mechanism is arranged on the rear side of the cutting device; the cut-part transferring device is arranged below the cut-part turning mechanism; the cut-part secondary transferring device is arranged on the rear side of the cut-part turningmechanism; the visible thread sewing machine is arranged on the rear side of the cut-part secondary transferring device; the heating ironing mechanism is arranged on the rear side of the visible thread sewing machine; the cooling setting mechanism is arranged on the rear side of the heating ironing mechanism.

The invention relates to a servo wire device of a suspension type ultrasonic air humidifier, which comprises a wire, a water box cover assembly and a vibrating sheet assembly, wherein the vibrating sheet assembly is positioned below the water box cover assembly; one end of the wire is connected with the vibrating sheet assembly, and the other end is connected with the water box cover assembly; and the wire is a spiral wire. In the invention, because the wire connecting the water box cover assembly and the vibrating sheet assembly is the spiral wire, in the suspension type ultrasonic air humidifier, the length of the wire can be automatically regulated along with different suspension positions of the vibrating sheet assembly, and the wire is integrally and vertically hung down all the time and can not be wound or knotted, thereby simultaneously avoiding bending of the wire and extending the service life of the wire. The invention has simple and practical structure, and solves the problem of difficulty in wiring of a connecting wire of the vibrating sheet assembly in the suspension type ultrasonic air humidifier.

The invention provides a medical interventional needle assembly and a medical interventional catheter. The medical interventional needle assembly comprises a first tube section, a second tube section,an electric lead and a metal needle, the second tube section is connected to the far end of the first tube section, the metal needle is arranged on the second tube section, and at least one part of the electric lead is woven and formed in the tube wall of the first tube section. Due to the configuration, the electric lead woven and formed in the pipe wall of the first pipe section does not influence the internal space of the first tube section, so that the flow of saline water is ensured, the perfusion pressure is reduced, and the risk that the electric lead is scoured by the saline water tobe broken is also avoided. In addition, the electric lead is woven into the pipe wall, so that the strength and toughness of the pipe can be improved and the pipe is prevented from being bent or broken.

The invention discloses a bracelet-type infusion tube fixer, which comprises an upper part with a slot for an infusion hose, a slot for a liquid medicine filter, and a slot for connecting the liquid medicine filter with an intravenous infusion needle, and a wrist strap for wearing at the lower part. The seat body of the hole; the width of the notch of the infusion hose slot is smaller than the outer diameter of the infusion hose, the width of the slot of the liquid medicine filter is smaller than the outer dimension of the liquid medicine filter, and the connection between the liquid medicine filter and the intravenous infusion needle is locked The width of the notch is smaller than the outer diameter of the pipe at the connection between the liquid medicine filter and the intravenous infusion needle. In the seat body. The invention solves the problem that the flexible tube of the intravenous infusion needle is easily folded and twisted during the infusion of the patient, resulting in unsmooth dripping of the infusion and separation of the liquid medicine filter and the intravenous infusion needle, resulting in waste of liquid, pollution of the pipeline, and soaking of the bed unit. There are many problems such as affecting treatment, wasting consumables and increasing the workload of nursing staff.

The invention discloses a printing turnover device and a printing method. The printing method includes a first step of inputting a printing pattern into a computer to perform ink color sequence analysis, setting the color sequence to be N (N>/=2) according to the color sequence analysis result, and adding N kinds of ink to corresponding N printing machines, respectively; a second step of in the first printing machine, printing an underpainting layer on a transparent thin film, then drying by a drying device, subsequently, through the N-1 printing machines, performing printing sequentially according to the analyzed printing color sequence on the same side of the transparent thin film, and finally covering an ink printing layer with a varnish protective layer; and a third step of after the completion of covering the transparent thin film with the varnish protective layer on one side in the second step, turning over the transparent thin film through the turnover device, performing printing on the other side of the transparent thin film, and after repeating the first and second steps, outputting a printed transparent thin film. The transparent thin film printed by the method has a clear pattern, small ink color difference and high product printing precision.

The invention discloses a trans-nasal trachea cannula fixing device special for a child. The trans-nasal trachea cannula fixing device comprises a bandage, a clamping bush, a fixing bush, a rotating bush, an installing plate, a first receding hole, a connecting pin, an air exhaust hole, a connecting plate, a bolt and a second receding hole. The trans-nasal trachea cannula fixing device special forthe child is ingenious in structure, powerful in function and easy to operate; by using the device, a trachea cannula can be fixedly connected and prevented from slipping off and threatening the lifeof the child patient, and the child patient is protected. In addition, the device can avoid bending of the trachea cannula, and the using normality of the trachea cannula is ensured.

The invention relates to the technical field of sports equipment and discloses a special badminton training net for sports. The special badminton training net comprises a base I, wherein a support sleeve is fixedly connected to the top of the base I, a fixed rod is arranged at the bottom of an inner cavity of the support sleeve, the top of the fixed rod is movably sleeved with a support plate, thebottom of the support plate is in transmission connection with the bottom of the inner cavity of the support sleeve through a telescopic spring, a connecting sleeve located outside the fixed rod is welded to the top of the support plate, and the middle of the connecting sleeve is fixedly sleeved with a positioning plate located in the support sleeve. By virtue of a sliding device, a device can beconveniently moved to an appointed position according to the limits of a site and is utilizing for playing badmintons, so that the problems that the movement of an adopted simple wire net is limited,and the simple wire net cannot be adjusted according to the conditions of the site are solved, the adjustability of the device is realized, and meanwhile, the practicability of the device is improved.

The invention discloses a seal clamp. The seal clamp comprises an upper pressing plate, a lower pressing plate, a guide wheel and a pull buckle; one end of the lower pressing plate is in pivot joint with one end of the upper pressing plate, the guide wheel is connected with the lower pressing plate, and the pull buckle is arranged at the other rend of the upper pressing plate and used for being fixedly connected with the lower pressing plate; when a heat shrinkage pipe expands, the pipe is placed on a round pipe product just out of an expansion mold, through alternative use of two seal clamps, cutting can be carried out while the round pipe is expanded, for different specifications, a rotating screw cap at the end of a pull rod is adjusted, and the seal effect is adjusted.

The invention discloses a high-flow anti-bending guide catheter structure. The high-flow anti-bending guide catheter structure comprises a main catheter body, which is of a double-layer structure and is composed of an inner layer and an outer layer; the tail end of the inner layer is provided with a round head integrally formed with the inner layer, and one side of the tail end of the inner layer, which is close to the round head, is provided with a plurality of liquid outlets; a fixing flat filament is fixed inside the main catheter body; the end portion of the adhering surface of the outer layer and the inner layer is provided with a tip transition unit; the end portion of the main catheter body is connected with a pressing type split locking connector. The high-flow anti-bending guide catheter structure is simple in implementing process, changes the complex process of punching catheters in the prior art and solves the problems of low strength, cavity blocking and the like; the inner flat filament can play a key role of reinforcement when the catheter is pushed, pulled, turned and guided during operation as well as meet the requirements on radial flexibility during operation. Therefore, the high-flow anti-bending guide catheter structure solves the problem that existing catheters are easy to block, break and bend, reduces the risk during catheter puncture and meanwhile greatly reduces the production cost.

The invention relates to a siphon type dewatering wiper for a hot plate blank, and belongs to the technical field of hot rolling equipment in the metallurgical industry. According to the technical scheme, the siphon type dewatering wiper comprises a fixing support (1), hoisting connecting rods (3), siphon dewatering rollers (4), water collecting tanks (5) and a hot rolling conveying roller way (6), wherein the multiple siphon dewatering rollers (4) arranged side by side are arranged above the hot rolling conveying roller way (6) in the running direction of the hot plate blank, the two ends ofthe siphon dewatering rollers (4) are rotationally connected to the fixing support (1) through hoisting connecting rods (3), the water collecting tanks (5) are arranged below the two ends of the siphon dewatering rollers (4), the roller bodies of the siphon dewatering rollers (4) are concave roller with the thin middles and the two thick ends, a plurality of identical grooves (9) are engraved in the surface of the roller bodies in the axial direction, and each groove (9) is of a structure with the narrow middle and the two wide ends. The siphon type dewatering wiper has the beneficial effectsthat residual water on the surface of the hot plate blank passing through a dephosphorization machine or a rolling mill can be effectively and rapidly removed, the temperature difference between the upper portion and the lower portion of the hot plate blank is reduced, and head warping or buckling of the hot plate blank is prevented.

The invention relates to the field of medical equipment, in particular to an anaesthesia machine rack and a head fixing device. The anaesthesia machine rack comprises an angle adjusting support and afixed support; the angle adjusting support comprises a base, a clamping base and a support component, and the support component and the clamping base are arranged on the base; the support component isin rolling connection with the base, so that the mounting angle of the threaded pipe is adjusted, and the clamping base is rotationally connected with the rolling base, so that the mounting angle ofthe anaesthesia is adjusted; the fixed support comprise a rolling frame, a supporting device and a clamping device, the supporting device is used for adjusting the proper head supporting position, andthe clamping device is used for head positioning. Accordingly, the structure is simple, convenience is brought to operation, the phenomenon that in the anesthesia process, a threaded pipe is broughtout or compressed and folded to one side, and the head of a patient is likely to swing in the anesthesia process, so that ventilation disorder or dropping off of the threaded pipe is caused can be avoided, and the system is suitable for the prone position surgery.

The invention belongs to the technical field of anesthesia machine auxiliary equipment and particularly relates to an anesthesia tube fixator and a utilization method thereof. The anesthesia tube fixator comprises a body plate shaped as a Chinese character wang, and the body plate comprises a main plate, a middle plate, a rear plate and a middle rod. A plurality of inverted L shaped hooks are uniformly arranged at the front end of the lower end face of the main plate, the lower end face of the main plate is provided with a U-shaped supporting rod outside the inverted L shaped hooks, and the connection end of the U-shaped supporting rod with the main plate is behind the connection end of the inverted L shaped hooks with the main plate. The front end face of the outer wall of a second connecting cylinder is uniformly provided with a plurality of first slotted holes above second threaded holes, a third connection cylinder internally sleeves the second connection cylinder, the front end face of the outer side of the third connection cylinder is provided with a plurality of second slotted holes, second retaining blocks matched with second strip grooves in the inner wall of the second connection cylinder are arranged on left and right lateral sides of the upper end of the third connection cylinder, and hooks are arranged at the lower end of the third connection cylinder. Problems oftube bending, high time and labor consumption, complexity and unsatisfactory effects caused by an existing anesthesia tube fixing mode are solved.

The invention discloses a large-inner-diameter triple trocar device and an application thereof.The large-inner-diameter triple trocar device comprises a plastic sterile packaging sleeve, a first sleeve head, a second sleeve head, a puncture steel needle head, a blood storage bin and a removable plug, wherein pinching piece grooves are formed in the two sides of one end of the plastic sterile packaging sleeve; a slope buckle is arranged at the end, close to the pinching piece open grooves, in the plastic sterile packaging sleeve; the plastic sterile packaging sleeve is fixedly connected with the first sleeve head in a clamped mode through the slope buckle, and the center of the end, close to the plastic sterile packaging sleeve, of the first sleeve head fixedly communicates with a first plastic sleeve; a second plastic sleeve is slidably arranged in the first plastic sleeve in a sleeved mode; and a hollow steel needle is slidably arranged in the second plastic sleeve in a sleeved mode.According to the device, the first plastic sleeve and the second plastic sleeve are arranged and matched with the hollow steel needle, the advantages of a thin needle and a thick needle can be combined, and the purposes that only the puncture difficulty of the thin needle exists, and the using effect of the thick needle is achieved are achieved.