191results about How to "Safe release" patented technology

The invention provides a medicine eluting balloon catheter. The medicine eluting balloon catheter has the characteristics of simple structure, simple production process, less loss of medicines in a conveying process, and less medicine residue amount on a balloon after interventional operation. The medicine eluting balloon catheter has a simple structure and is also suitable for large-scale production.

A process is described for recovering alkali-chloride and alkali-sulfate salts from a salt solution. The salt solution comprises alkali metal, chloride and sulfate ions and is directed to a hydrous salt crystallization unit which crystallizes hydrated sulfate salts that comprise sulfate and at least one alkali metal. A purged solution from the hydrous salt crystallization unit is directed to a chloride salt crystallization unit while the hydrated sulfate salt crystals are melted to form an aqueous sulfate solution which is directed to a sulfate crystallization unit. Anhydrous sulfate salts are crystallized from the aqueous sulfate solution to form sulfate salt crystals comprising sulfate and at least one alkali metal. In the chloride salt crystallization unit, chloride salt is crystallized to form chloride salt crystals. A purge from the chloride salt crystallization unit is directed to the hydrous salt crystallization unit.

The invention relates to an electric pressure cooker capable of realizing safe pressure relief, which comprises a cooker body, a cooker cover that is positioned above the cooker body and covers the opening of the cooker body and a safe pressure relief unit fixed at the back end of the cooker body, wherein the safe pressure relief unit comprises a box-shaped bracket with a cavity and an elastic element, an upper revolving shaft, a lower revolving shaft and connecting bodies which are arranged in the cavity, the connecting bodies are respectively arranged on the two side walls of the cavity of the box-shaped bracket, the upper revolving shaft and the lower revolving shaft penetrate through the connecting bodies, the elastic element is fixed in the cavity of the box-shaped bracket, and the left end and the right end of the elastic element respectively abut against the lower revolving shaft. When the pressure reaches the limit value, the cooker cover overcomes the elasticity of the elastic element and moves upwards in the opening direction of the cooker cover, so that a gap can be formed between the cooker body and a seal ring to realize the safe pressure relief. The invention can ensure that the pressure relief process can be completed safely, and the pressure in the cooker can be fast and safely relieved even if the air release valve and / or the pressure relief valve are / is blocked, thereby avoiding cooker explosion and ensuring the personal safety of users.

The inventive subject matter is directed toward a pyrolytic waste treatment system comprising a pyrolysis chamber and a movement mechanism adapted to move waste through the pyrolysis chamber at different speeds along the length of the pyrolysis chamber.

The invention relates to ice control formulations (deicing and anti-icing compositions) that have a tailorable BOD. The deicing compositions of the present invention comprise a) at least one first freezing point depressant (FPD) that is non-toxic, biodegradable and has a certain rate of degradation; b) at least one second FPD that is non-toxic, biodegradable, wherein the second FPD has a rate of degradation that is different from the rate of degradation of the first FPD; and c) at least one surfactant, wherein the surfactant is non-ionic, non-toxic and biodegradable, and wherein the first FPD of (a) and the second FPD of (b) are present in a ratio that provides a composition that has a predetermined biochemical oxygen demand (BOD). The invention further provides anti-icing compositions which further comprise a thickener.

The invention discloses a decapping device for a vacuum blood collection tube. The decapping device comprises a rack, a group of gears, a group of end-surface helical disks, pressure heads, a test tube rack and a decapping power component, wherein the test tube rack is provided with at least one row of vacuum blood collection tube positioning units, the number of each column of vacuum blood collection tube positioning units is the same as that of the gears, a non-return part is formed in each vacuum blood collection tube positioning unit after the vacuum blood collection tube is inserted; the decapping power component is connected with the test tube rack and drives the test tube rack to move up and down. With the adoption of the decapping device, decapping can be realized safely, reliably and quickly through reduction of the decapping force.