4results about How to "Lower device cost" patented technology

This invention belongs to the field of medical device technology, and particularly relates to a puncture device with integrated internal and external air conduction. Addressing the problem that existing puncture devices cannot prevent the outward escape of aerosols generated by chemotherapy drugs applied to the surgical site, this invention provides a puncture device with integrated internal and external air conduction, including a puncture device cannula assembly with an internal instrument channel, and a balloon assembly connected to the puncture device cannula assembly; it also includes an exhaust assembly disposed outside the puncture device cannula assembly, one end of which is connected to an external vacuum source, and the other end of which is connected to the instrument channel. A gas-conducting fixator is also provided outside the puncture device cannula assembly, with its bottom communicating with the patient's pneumoperitoneum, and the gas-conducting fixator is connected to the exhaust assembly. This invention achieves dual aerosol absorption through a dual negative pressure suction system, greatly reducing the risk of medical personnel inhaling toxic aerosols during minimally invasive surgery requiring chemotherapy.

The present application belongs to the field of bridge crane replacement, and mainly relates to a large-scale bridge crane quick replacement method under restricted space conditions, comprising the following steps: installing a support beam below the crane, installing a lifting beam at a certain height above the crane, installing multiple towers on different module vehicles, moving the module vehicles to the two sides of the old crane, and supporting under the lifting beam; placing a lifting device above the lifting beam and connecting with the bottom support beam, lifting the support beam and the old crane to a certain height; after rotating the old crane by a certain angle in place by the module vehicle, the lifting device lowers the old crane, and the disassembly is completed; repeating the above steps to install a new crane. In the restricted working space, the module vehicle and the tower combination are used to replace the bridge crane through the in-place rotation mode, the occupied space is small, the modular disassembly is used, the construction time is effectively shortened, the efficiency is improved, and the method is suitable for construction of various sizes and scenes.

The utility model provides a kind of infusion blood sampling device.In the utility model, after the central venous blood of critical patient is extracted using blood collector, the mixture in syringe is injected into the central vein of critical patient via central venous catheter, so that iatrogenic blood loss can be avoided.After blood sampling, new infusion bottle, new infusion tube and new pump do not need to be used, drug and instrument waste are avoided, and drug and instrument costs are reduced.When the infusion blood sampling device leaves factory, the nipple in the needle cylinder in the syringe is integrally formed with the first catheter and cannot be detached, so that the syringe is not pulled off from the first catheter, and the nipple in the needle cylinder in the syringe is always isolated from the outside and not exposed to the outside, so that external pollutants can be prevented from being injected into the central vein of critical patient, and health and safety threat to critical patient can be avoided.

The utility model relates to the technical field of composite texturing yarn processing equipment, in particular to a twisting device for composite texturing yarn processing, which comprises a support, a twisting workpiece is mounted in the center of the top of the support, a take-up rod is mounted on the side wall of the support, a driving motor is fixedly mounted on the side wall of the support, and a rotating rod is mounted at the output end of the driving motor. The rotating rod penetrates through the side wall of the support, a rotating disc is installed on the side wall of the rotating rod, and a plurality of wire clamping assemblies are installed on the surface of the side wall of the rotating disc and evenly distributed on the surface of the side wall of the rotating disc in an annular array mode. The twisting device has the advantages that the multiple clamping assemblies are installed on the rotary disc, the multiple silk threads can be conveniently clamped, meanwhile, the silk threads can be rapidly replaced, the twisting device is suitable for machining the composite draw textured yarns made of multiple different raw materials, and the instrument cost needed by the composite draw textured yarns of different types is reduced.