2results about How to "Shrinkable" patented technology

The utility model discloses a convenient portable pen type syringe rubber plug relates to syringe rubber plug technical field, including rubber plug body, and the edge of rubber plug body side wall is integrally provided with the scraping strip, the chamfer processing between scraping strip and rubber plug body side wall, and the one end of rubber plug body is integrally provided with the push column, and the push column is coniform setting, and the rubber plug body on the edge of push column is provided with a plurality of anti -sticky ball, when using, the inner ring in rubber plug body and the push rod cooperation installation of syringe, through the injection effect of the medicine liquid in the syringe inside of rubber plug body that realizes the pull push rod, when the medicine liquid of rubber plug body pushes, simultaneously, the residual medicine liquid on the inner wall of syringe is effectively scraped up by scraping strip, effectively avoid the situation of residual medicine liquid, when the injection of medicine liquid, through the push column and enter the liquid outlet in the end of syringe, effectively realize the complete injection of the medicine liquid in the syringe, avoid the influence of the therapeutic effect of medicine liquid because of the insufficient measurement.

The present application relates to a kind of shell-core nanofiber membrane with temperature control shrinkage, preparation method and application;DCM and DMF are sequentially added to the mixture consisting of PTMC and PVP to obtain a mixed solution, wherein the mass percentage of solute is 2-5%; the mixed solution is stirred to obtain an electrospinning precursor solution after sufficient dissolution;After electrospinning of electrospinning precursor solution using single shaft spinneret, vacuum drying obtains nanofiber membrane, the fiber diameter of the nanofiber membrane is 0.203-0.603 μm, has shrinkage under humid conditions, and the shrinkage is enhanced with the increase of temperature, and the shrinkage rate in PBS at 20 DEG C to 37 DEG C for 2h is 20.4% to 54.33%; the nanofiber membrane adheres to wound site can effectively reduce wound area, for promoting active healing of wound, using single shaft electrospinning process preparation, it is more simple and convenient, more economical to operate.