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52results about How to "Reduced risk of displacement" patented technology

Neuro-intervention head-neck fixing device

The invention discloses a neuro-intervention head-neck fixing device. A head fixing plate can be movably installed on a supporting plate, a left splint is movably installed at the upper portion of the left side of the head fixing plate, a right splint is movably installed at the upper portion of the right side of the head fixing plate, a first tightening device and a second tightening device are both installed at the left side of the left splint in a front-back spaced mode, both the first tightening device and the second tightening device comprise shells, guide rods, slide rods, ratchet bars, and ratchets, a lifting device controls the slide rods to move up and down, the slide rods are slidably connected with slide blocks, the slide blocks are rotatably connected with connecting rods, the lower portions of manipulating rods are rotatably connected with the connecting rods, the ratchet bars are in slidably connected with the guide rods, the rackets are arranged at the lower portions of the slide blocks and are matched with the racket bars, the lower portions of the racket bars are fixedly connected with winch racks, the lower portions of the winch racks are meshed with winch gears, and shafts of the winch gears are provided with winches. The neuro-intervention head-neck fixing device is high in safety and reliability, the risk of occurrence of head dislocation of a patient in a neuro-interventio operation is drastically lowered, which is conducive to improvement of the curative effect of the operation.
Owner:THE FIRST AFFILIATED HOSPITAL OF ZHENGZHOU UNIV

Secondary battery

The invention relates to a secondary battery. The secondary battery comprises an electrode assembly, a top cover piece, a first terminal and a second terminal. The electrode assembly comprises a first pole piece and a second pole piece, the first pole piece is electrically connected with the first terminal, the second pole piece is electrically connected with the second terminal, and at least one of the first terminal and the second terminal is arranged on the top cover piece in an insulating mode. The secondary battery further comprises a conductive piece and a contact piece attached to the first terminal. The conductive piece comprises a first part and a second part which are connected. The first part is electrically connected with the second terminal. When the internal pressure of the secondary battery exceeds a standard pressure, the contact piece acts under the action of air pressure and makes contact with the second part so that an electric connection path passing through the first pole piece, the first terminal, the contact piece, the conductive piece, the second terminal and the second pole piece can be formed, and the second part is arranged to be fixed relative to the top cover piece. The secondary battery reduces the risk of displacement generated by the conductive piece under the action of contact force, and safety of the secondary battery is improved.
Owner:CONTEMPORARY AMPEREX TECH CO

Biological kit with double damping functions

The invention discloses a biological kit with double damping functions. The biological kit comprises a kit body, a damping mechanism and a cover body, wherein a bottom plate of the kit body is of a multilayer structure formed by an upper layer, an elastic middle layer and a lower layer from top to bottom, and grooves are uniformly formed in the upper surface of the upper layer line by line; the damping mechanism comprises elastic protective layers, an elastic gas tube and an inflatable balloon, the elastic protective layers are attached to the inner sides of side plates, air inlets are formedin the inner surfaces of the elastic protective layers on the two adjacent side plates row by row, air outlets are correspondingly formed in the elastic protective layers opposite to the elastic protective layers with the air inlets, both ends of the elastic gas tube are respectively connected with the air inlets and the air outlets, air inlet ports and air outlet ports are formed in the side plates, the air outlet ports communicate with air in the air outlets, and the inflatable balloon is connected with the air inlet ports. According to the biological kit, the anti-vibration capability of the biological kit is increased, and the damage caused by mutual collision of reagents in the kit body can be avoided when the biological kit vibrates, so that the transportation requirement of biological reagents is reduced, and the safe transportation of the reagents is guaranteed.
Owner:牛静洁

Stent for TIPS

The invention relates to a stent for TIPS. The stent is characterized by comprising a tectorial membrane framework, elastic self-expanding frameworks and a precious metal ring, wherein the tectorial membrane framework is made by laser engraving, is of a tubular structure capable of shrinking along the radial direction, and comprises a support bone and a covering membrane; the elastic self-expanding frameworks are formed by mutual cooperation of metal wires and are of taper-pipe-shaped structures capable of contracting in the radial direction. The two elastic self-expanding frameworks are located at the two ends of the tectorial membrane framework respectively and connected with the tectorial membrane framework through precious metal. The large-diameter end of each elastic self-expanding framework is designed to face outwards, and the small-diameter end of the elastic self-expanding framework is designed to face the tectorial membrane framework. The stent is manufactured by adopting a method of end braided wire self-expanding and middle part engraving; when the stent is released, the required application force is smaller, the risk of stent displacement is lower, the operation is more convenient, and the operation effect is better; and meanwhile, the cost of the stent is reduced by adopting a weaving and carving combined mode, and the production process is simplified.
Owner:天琴特普新医疗科技(苏州)有限公司

Mobile debugging workbench for computer server room

The invention relates to a mobile debugging workbench for a computer server room. The mobile debugging workbench comprises a mounting seat, a supporting plate is fixedly mounted on one side of the top of the mounting seat, a first workbench is arranged on the left side of the supporting plate, an obliquely arranged display screen is fixedly mounted on the top of the left side of the supporting plate, an obliquely-arranged U-shaped push rod is fixedly installed at the bottom of the right side of the supporting plate, a height adjusting mechanism and a rolling wheel storage mechanism matched with the height adjusting mechanism are arranged on the mounting seat, and an area increasing and expanding mechanism is arranged on the supporting plate. The mobile debugging workbench is reasonable in design; the whole device is convenient to move, four walking wheels are convenient to store, the parking stability is improved, and the risk of displacement of the whole device in the using process is reduced; the heights of the first workbench and a second workbench are convenient to adjust according to using requirements, so that people of different heights can operate and use the device conveniently; and the area of the workbench can be increased and adjusted conveniently, and people can operate the workbench conveniently.
Owner:HENAN MEDICAL COLLEGE

Valve prosthesis

The invention provides a valve prosthesis. The valve prosthesis comprises a support and a skirt assembly; the support is provided with an inflow end and an outflow end which are opposite in the axial direction of the support; the skirt assembly comprises at least two skirts, the skirts surround the support in a ring shape and are provided with inner edges and outer edges, the inner edges are the edges, close to the axis of the support, of the skirts, and the outer edges are the edges, away from the axis of the support, of the skirts; the inner edges are connected with the support, and the outer edges form a free end; the at least two skirts are arranged at intervals along the axial direction of the support and are different in radial external dimensions; and the outer edge of at least one skirt is used for being in contact with a native tissue. By means of the configuration, even if a small amount of blood flow enters a gap between the skirts and the native tissue, the blood flow can be blocked by the skirts of different radial outer sizes to form a blood flow low-speed area, blood can be solidified in the low-speed area, perivalvular leakage is reduced, and meanwhile endothelialization is accelerated. Meanwhile, the roughness of the skirt assembly is increased due to the change of the radial outer size of the skirts, and tissue climbing growth and endothelialization are facilitated.
Owner:SHANGHAI TRULIVE MEDTECH CO LTD +1

Nerve intervention head and neck fixation device

The invention discloses a neuro-intervention head-neck fixing device. A head fixing plate can be movably installed on a supporting plate, a left splint is movably installed at the upper portion of the left side of the head fixing plate, a right splint is movably installed at the upper portion of the right side of the head fixing plate, a first tightening device and a second tightening device are both installed at the left side of the left splint in a front-back spaced mode, both the first tightening device and the second tightening device comprise shells, guide rods, slide rods, ratchet bars, and ratchets, a lifting device controls the slide rods to move up and down, the slide rods are slidably connected with slide blocks, the slide blocks are rotatably connected with connecting rods, the lower portions of manipulating rods are rotatably connected with the connecting rods, the ratchet bars are in slidably connected with the guide rods, the rackets are arranged at the lower portions of the slide blocks and are matched with the racket bars, the lower portions of the racket bars are fixedly connected with winch racks, the lower portions of the winch racks are meshed with winch gears, and shafts of the winch gears are provided with winches. The neuro-intervention head-neck fixing device is high in safety and reliability, the risk of occurrence of head dislocation of a patient in a neuro-interventio operation is drastically lowered, which is conducive to improvement of the curative effect of the operation.
Owner:THE FIRST AFFILIATED HOSPITAL OF ZHENGZHOU UNIV

Fine filtration type seawater filter structure

The invention discloses a fine filtration type seawater filter structure. A butterfly check valve is arranged in a seawater outlet, a sealing cover is arranged at the bottom of a box body, a through hole is formed in the sealing cover, the bottom of the through hole is connected with a seawater inlet pipe, a cylindrical filter screen is arranged at the top of the through hole, a top plate is arranged at the top of the cylindrical filter screen, and two glands are arranged at the top of the top plate. One gland is connected with the top plate through a fixing mechanism, an anti-corrosion zinc block is arranged at the bottom of the box body, a base is arranged at the bottom of the anti-corrosion zinc block, the base and the inner wall of the box body are fixed through a quick insertion mechanism, and a vertical polar polymer resin adsorption layer, a non-polar polymer resin adsorption layer and a porous medium filter plate are sequentially arranged close to the inside of the box body. A stirring shaft is arranged at the end, close to the seawater outlet, of the box body, the bottom of the stirring shaft is connected with a driving motor, and a feeding mechanism is arranged on the other gland. According to the invention, shaking of the filter screen can be reduced while the filter screen is convenient to disassemble and assemble, the anti-corrosion zinc block can be quickly disassembled and assembled, the oxygen content in the box body is reduced, the structure is simple, and use is convenient.
Owner:佛山市南海珠峰造船有限公司 +1

A high-pressure-resistant separation filtration membrane column device with a low-resistance deflector

The invention relates to a low-resistance flow guide plate and high-pressure-resistant separation filtering membrane column device. Two ends of a pressure bearing outer shell of a membrane column provided by the invention are of flange structures; fixed compression rings and movable compression rings are fixedly connected with flanges at two ends of the membrane column via flange discs and bolts and nuts. Liquid reducing holes are formed in one sides of flow guide plates which form a membrane stack, and the other sides of the flow guide plates are provided with liquid receiving regions; the liquid receiving regions and the liquid reducing holes are the same in area; other regions of two surfaces of each flow guide plate, except for the liquid receiving regions, are provided with a plurality of flow guide salient points, and the flow guide salient points at two surfaces are corresponding in position. The pressure of a central pull rod and nuts at two ends of the central pull rod is relieved by the flange structures provided by the invention, and the membrane stack is compressed further, so that the whole membrane column can resist high pressure relatively well. A fluid flows from the liquid reducing holes to the liquid receiving regions of the next stage of flow guide plate, and then flows through two membrane surfaces of a membrane layer, leaves from the liquid reducing holes of the flow guide plates, and flows to the next stage of flow guide plate; baffling for twice when the fluid flows through the flow guide plates is prevented, and the resistance loss of the fluid while flowing through the flow guide plates is reduced.
Owner:浙江美易膜科技有限公司

Optical fiber grinding machine

The invention relates to the field of optical fiber grinding devices, in particular to an optical fiber grinding machine. The machine comprises a machine base, a plurality of optical fiber chucks provided with optical fibers in an inserted mode and a material conveying rail used for conveying the optical fiber chucks; the top end of the machine base is provided with a grinding disc used for abutting against the end surfaces of the optical fibers; the grinding disc is located in the middle of the material conveying rail; the machine base is provided with at least two telescopic air cylinders; the at least two telescopic air cylinders are located on the two sides of the material conveying rail correspondingly; abutting blocks are arranged at the ends of piston rods of the telescopic air cylinders; the side walls of the abutting blocks and the end surface, opposite to the machine base, of barrels of the telescopic air cylinders abut against the opposite surfaces of the optical fiber chucks correspondingly. Compared with the situation that an operator needs to continuously and repeatedly take, place and fix the optical fiber chucks, the machine has the advantages that after the operator places the multiple optical fiber chucks on the material conveying rail, all that is required for completing the operation that the multiple optical fiber chucks are oppositely placed and fixed relative to the grinding disc in turn is to open and close the material conveying rail and the telescopic air cylinders, and the machine has the effect of reducing the labor intensity of the operator.
Owner:SHENZHEN ADTEK TECH CO LTD

Preparation method of polypropylene/polydopamine compounded patch, compounded patch and application

The invention discloses a preparation method of a polypropylene / polydopamine compounded patch, the compounded patch and application. According to the preparation method disclosed by the invention, a single-layer compounded patch is divided into two faces from a nano scale by using the principle that a polydopamine membrane can be rapidly taken off from polypropylene by using sodium hypochlorite and the concentration of a polypropylene patch is lower than that of a saturated brine solution; a polypropylene / polydopamine membrane face serves as one face, and thus, the compounded patch is effectively prevented from being adhered to organs in an abdominal cavity; a polypropylene face, exposed after a polydopamine nano-membrane falls off, serves as the other face, the face is in contact with theinterior of an abdominal membrane, the tension of an abdominal wall is improved, the risk of displacement can be reduced, the structure is more reasonable, and intraperitoneal requirements and intraperitoneal requirements can be simultaneously met. Simultaneously, by the preparation method, stacked lamination of a variety of composite materials is not involved, the thickness of the polypropylene / polydopamine compounded patch keeps that of a pure PP patch macroscopically, and thus, the patch is relatively lightweight and thin and has a great clinical application value.
Owner:SUN YAT SEN UNIV

Construction method of flexible connection structure of prefabricated part and building main body

The invention relates to the field of fabricated building industrialization, in particular to a construction method of a flexible connection structure of a prefabricated part and a building main body. Flexible connection plates are mounted at two ends of a formed prefabricated part to form a combined prefabricated plate, mounting slots are formed at two ends of the position where the combined prefabricated plate is mounted when the building main body is poured, and then the two ends of the combined prefabricated plate are inserted into the corresponding mounting slots. Comprehensive flexible connection between the building main body and the prefabricated part is effectively achieved, meanwhile, foundation limiting is conducted on the prefabricated part, when dislocation occurs between the prefabricated part and the building main body, the dislocation can be limited within the design range, and the problem that under the earthquake condition, large-amplitude dislocation sliding between the prefabricated part and the building main body occurs, even the prefabricated part is separated from the building main body, consequently, the prefabricated part falls down and hits people at the bottom is avoided.
Owner:张明明

Elevator dragging method and equipment

The elevator dragging device comprises a lifting cage, a balance weight, a guide mechanism for the lifting cage and the balance weight to move up and down, a traction machine, a first guide wheel set and a second guide wheel set, the upper end of the balance weight is provided with an upper wheel set, and the lower end of the balance weight is provided with a lower wheel set; one end of the first traction cable is relatively fixed with the cage and is connected with the first coded disc, and the other end of the first traction cable upwards bypasses the first guide wheel group and then is downwards connected with the counterweight; and one end of the second traction cable is relatively fixed with the lower part of the hoistway and is connected with the second coded disc, and the other end of the second traction cable is wound on the traction machine after upwards bypassing the lower wheel set, then upwards wound on the second guide wheel set, downwards wound on the upper wheel set and finally upwards fixed with the hoistway sky beam through a rope head combination. The length of the traction cable and the length of the guide mechanism can be continuously adjusted through the coded disc to meet the height change of a building. And through an indirect driving mode, the cycle frequency and number of the traction cable are reduced, reactive power loss caused by the quality of a traction cable system is reduced, and the operation efficiency is improved.
Owner:浙江班门机械科技有限公司
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