8results about How to "Prevent extravasation" patented technology

The utility model discloses a medicine application nursing appliance, which belongs to the technical field of medical instruments and comprises a substrate layer, a medicine bag cavity, an anti-seepage ring, a heating component and a displaceable pressing component. When the medicine applying nursing appliance is used, the medicine applying nursing appliance is stably adhered to the umbilical region of a user through the adhering edge on the base layer, the medicine bag in the medicine bag cavity acts on the umbilical region for treatment, and the movable pressing assembly can be moved to the umbilical region or near the Tianshu point for intermittent pressing during the period. In addition, the heating assembly can be started to conduct low-temperature heat conduction on the application area, integration of medicine, hot compress and acupoint pressing is achieved, and the treatment effect is improved. The medicine bag is arranged in the medicine bag cavity, replacement is convenient, medicine liquid leakage can be prevented, and use convenience is improved.

The utility model discloses a kind of thyroid ablation post-neck ice compress band, including front cloth band, the middle part of front cloth band is equipped with rectangular through-hole, heat conduction layer is sewn in the inside of through-hole, the left side of front cloth band is sewn and has the storage assembly for placing ice bag, the both ends of front cloth band are sewn and have connecting band;The utility model connects first fixed band and second fixed band by connecting band at the both ends of the front cloth band with hollow, make overall form scarf style around patient neck, not only guarantee the reliability of ice compress, but also suitable for different population use, while setting heat conduction layer and storage assembly in the middle part of front cloth band, storage bag in storage assembly is divided into two areas by separation cloth for placing ice bag, so that it corresponds with heat conduction layer, heat conduction layer can efficiently transfer the temperature of ice bag to improve ice compress effect.

The application discloses a kind of underground storage tank liquid flow battery systems and its leakage monitoring control method.System includes the outer tank being vertically arranged in underground shaft, the inner tank being coaxially arranged in the inside of outer tank and being double-wall structure, the closed assembly being sealingly connected between the inner tank shell and outer tank, and the electric pile module;Annular isolation layer space filled with liquid isolation medium is formed between the inner and outer shell of inner tank, the second electrolyte storage space is formed in the inside of inner tank, and the first electrolyte storage space is formed between the inner wall of inner tank shell and outer tank;System further includes pressure regulating tank communicated with isolation layer space, pressure maintaining device, detection unit and ground control unit.The application forms positive pressure barrier by adjusting the pressure of isolation medium to be higher than the pressure of electrolyte on both sides at each depth, realizes the active defense of leakage, and realizes the cross determination of leakage position by using the coupling characteristics of multiple physical quantities.

This application discloses a pair of pliers that is easy to assemble and disassemble, including a left and a right pair of pliers arranged in a cross configuration. The left pliers have a left plier shaft portion, and the right pliers have a right plier shaft portion. The left plier shaft portion includes a left connecting seat with a connecting groove. A connecting sleeve with internal threads is concentrically arranged in the connecting groove. The right plier shaft portion includes a right connecting seat with a gasket mounting groove and a connecting sleeve on opposite sides. A connecting hole is formed at the bottom of the gasket mounting groove. During assembly, the connecting sleeve is inserted into the annular mounting groove outside the connecting sleeve, and the bolt passes through the gasket and the connecting hole and is screwed into the internal thread of the connecting sleeve. Therefore, the pliers provided by this application can be assembled and disassembled using only a screwdriver. Its double-sleeve structure allows for both sliding rotation and adjustment of tightness at any time by tightening the bolt. The two pliers can be separated by removing the bolt, making it convenient to clean the dirt inside the pliers. The assembly and maintenance are simple, and the gasket forms an end face seal to prevent lubricating oil from seeping out, thus avoiding dirty hands and clothes.

The application relates to a pipeline connecting flange anti-leakage device, which comprises a first protection cover and a second protection cover which are butted into a protection barrel body, and a placing groove which accommodates a connecting flange; the two ends of the first protection cover and the second protection cover are inserted into a pipe body through grooves, and the inside of the placing groove of the first protection cover and the second protection cover is provided with a semi-annular sealing gasket; the extension plates on the two sides of the first protection cover and the second protection cover are locked through bolts to form integral sealing and fix the semi-annular sealing gasket; a film bag is arranged in the placing groove, the film bag is attached to the end face and the outer wall of the flange; an oil injection pipe passes through the corresponding first protection cover or the second protection cover to communicate with the film bag, one end of an oil leakage pipe is connected to the film bag and the other end is connected to an external observation box, a check valve is arranged in the oil leakage pipe; oil is injected before use to make the film bag tightly attached to the flange; when the connecting flange leaks, the pressure in the placing groove rises, the leakage of the placing groove extrudes the film bag, hydraulic oil in the hydraulic oil pushes away the check valve to enter the observation box, and a patrol personnel can judge the leakage through a window.

The invention discloses an anti-exosmosis chemotherapy dosing device for medical oncology, which belongs to the technical field of tumor chemotherapy and comprises a moving rod, a support rod is fixedly mounted at the top end of the moving rod, a dosing bottle is arranged on one side of the support rod, and an infusion mechanism forming a gas-liquid pressure self-balancing system is arranged at the bottom end of the dosing bottle. The infusion mechanism comprises an injection head inserted into a bottle opening of the medicine feeding bottle, a first connecting block is arranged on the injection head, and an infusion tube is installed at the free end of the injection head in a communicating mode. Meanwhile, redundant liquid can be rapidly shunted and reflowed through the backflow pipe, the backflow pressure peak value can be effectively absorbed through a buffering bag supported by a honeycomb support in the flow slowing cavity, vortex can be avoided through a built-in flow guiding component and a flexible silica gel miniature flow limiting valve, and the problem of damage caused by too high pipeline pressure is solved to the maximum extent.

The utility model provides a novel throttle valve belongs to valve body technical field, including valve subassembly and anti loosening structure, valve subassembly is by valve body, installation cover, valve rod and valve core is composed, the utility model: valve rod is by upper stem body and lower stem body two parts constitute, is connected with screw rod in the upper stem body bottom, lower stem body top installs the sliding sleeve, and screw rod is connected in the thread groove of sliding sleeve inside opening in the thread, and the inside of installation cover is installed with the guide sleeve, and the inner wall of guide sleeve opens the limit slot, and sliding sleeve slides in the limit slot through both sides' limit sliding block, when the upper stem body rotates, drives screw rod to rotate in the sliding sleeve, and sliding sleeve is lifted and removed along screw rod under the limit of limit slot, thereby makes the drive valve core lift and open and close, because the upper stem body and lower stem body are connected through screw rod sliding sleeve, make valve rod not to produce loosening when being vibrated, avoid the leakage caused by the valve core upward movement.

The utility model discloses a kind of arteriovenous fistula indwelling needle, belong to indwelling needle technical field, this kind of arteriovenous fistula indwelling needle, including indwelling needle body, indwelling needle body includes indwelling catheter component, needle core component is inserted in the inside of indwelling catheter component, needle core component includes needle core, tail portion of needle core is fixedly connected with rear needle seat, the end of rear needle seat is limit connection with indwelling catheter component, the outside of needle core is provided with needle cap, needle cap is respectively with indwelling catheter component and needle core corresponding sleeve joint, the side of indwelling catheter component is continuously provided with infusion connector pipe, infusion connector pipe is externally sleeved with infusion clamp, needle cap is set outside needle core, after puncture needle cap can be clamped in the limiting ring of front needle seat, cooperate the telescopic structure of extension sleeve pipe, make needle core retract into pipe, avoid needle tip exposure, significantly reduce the risk of being pricked of medical staff and patient.