36results about How to "Guaranteed aseptic operation" patented technology

The invention relates to a protecting device of an interventional operation, which is made into a single cylinder or double cylinders by protecting material; the protecting device of the single cylinder is used for protecting a single person and the protecting device of the double cylinders is used for protecting double persons. The protecting device comprises an upper part, a middle part, a lower part, a top cover and a chassis; except for the chassis and the top cover, the whole device is divided into a front half part and a back half part; the position of the back half part is fixed as an important bearing part; after rotating, the front half part can be superposed with the back half part; the front half part of the upper part is provided with a circular arm device, wherein the circular arm device can be freely disassembled and assembled; and both hands of an operator can perform an operation through the arm device. The invention provides a protecting device of an interventional operation, which provides comprehensive protection, relieves high load of an operation operator and ensures that the operation operator easily and conveniently rotates and moves in the operation process.

The present invention discloses a novel fermentation tank, which comprises a tank body, a membrane filter and a pipeline; wherein, the membrane filter is arranged inside the tank body; one end of the pipeline is connected with the membrane filter in the tank; the other end of the pipeline leads out of the tank or leads out of the tank through a hollow stirring shaft. The membrane filter can be arranged on the wall of the tank through the pipeline or on the hollow stirring shaft, and the included angle between the membrane filter and the longitudinal axis of the tank is between 0 degree and 90degrees. In the process of bio-fermentation, the fermentation tank can carry out membrane separation, the positive pressure inside the fermentation tank or / and the negative pressure outside the fermentation tank ensure that liquid-phase material can permeate the membrane and pass through the pipeline to reach other devices outside the fermentation tank, and suspended cells and intercepted granules are intercepted in the fermentation tank to keep fermenting. The novel fermentation tank utilizes the characteristic of the combination of the fermentation tank and the membrane separation, to realize the coupling of cell culture and product abstraction. The fermentation tank does not affect the growth and metabolism of cells, the reaction effect is good, the biochemical reaction system is stable, moreover, the cost is low, investment is little, and the fermentation tank is applicable to biological reaction.

The invention relates to a novel normal-pressure room-temperature plasma induced mutation breeding device. The novel normal-pressure room-temperature plasma induced mutation breeding device comprises a sample processing system, a cooling system, a control system and a detection system; the sample processing system comprises a clean working chamber without bioactive contaminants; a step motor and an object stage are arranged in the clean working chamber; the object stage is arranged on the step motor; at least one sterilizing device mounting position is reserved in the inner cavity or on the wall of the clean working chamber; the detection system comprises a gas flow controller, a temperature sensor and a position sensor; and the control system comprises an operating panel and a controller, and the controller is used for controlling the step motor to realize rising and falling or horizontal rotation of the object stage so as to automatically process a plurality of samples. The novel normal-pressure room-temperature plasma induced mutation breeding device is capable of realizing the functions of continuous automatic processing, automatic sterilization, automatic monitoring and control on the samples, and also capable of completing the plasma induced mutation breeding in the normal pressure and room temperature environment at higher efficiency.

The invention discloses heat treating equipment for surfaces of a metal pipe, and belongs to the field of heat treating equipment for medical appliance materials. The heat treating equipment comprises a machine frame of the equipment, a machine body structure, a heating body structure and a control module, wherein the machine body structure is arranged in the machine frame to be used for supporting the metal pipe; the heating body structure is arranged on one side of the machine body structure to be used for heating the metal pipe; the control module is electrically connected with the machine body structure and the heating body structure to be used for controlling the relative movement of the machine body structure and the heating body structure. According to the heat treating equipment for the surfaces of the metal pipe, the metal pipe is clamped by the machine body structure which is used for supporting the metal pipe; the heating body structure on one side moves relative to the machine body structure, so that the metal pipe on the machine body structure is heated in a stretching manner, and sterile operation on the metal pipe during a stretching process is guaranteed; under the condition that the physical characteristics of the metal pipe are not changed, smoothing treatment in a water droplet manner is performed on stretching traces on the surfaces of the metal pipe. The heat treating equipment provided by the invention is simple in structure, and besides, refinement requirements of medical appliances for thin metal pipes are met.

The invention discloses a cell culture method and system. The method includes the following steps: S10. liquid interface expansion step, expanding one liquid interface of the cell factory into multiple liquid expansion interfaces; S20. inoculation step, expanding the interface through the first liquid Injecting the first culture solution containing inoculated cells into the cell factory; S30. The first liquid expansion interface closing step, after the injection of the first culture solution is completed, the first liquid expansion interface is closed and no longer opened; S40. Cultivation step; S50. Digestion step, identifying an unused liquid expansion interface, and completing the liquid exchange of the cell factory through the unused liquid expansion interface. The system includes a cell factory, which has at least one liquid interface; a liquid interface expansion device; and a liquid exchange device, which can be connected to or separated from the liquid expansion interface to complete the liquid exchange of the cell factory. The invention makes the liquid changing process of the whole cell culture free from external pollution and ensures aseptic operation.