Abstract: The invention discloses a use of asarinin in preparation of medicines for treating various coughs. The asarinin is used for preparing medicines for treating various coughs separately or in combination with other medicines. The asarinin can be extracted by an SFE-CO2 method. The asarinin and usable drug carriers or excipients are made into various formulations. And the formulations are granules, tablets, capsules, soft capsules, pills, dripping pills, ointments, syrups, injection, oral liquid, tinctures, sustained-releasing drugs, controlled release drugs or targeting preparations.

Abstract: The invention discloses a percutaneous puncture and dilation visible irrigation-suction system and a method of using the same. The system comprises a main tube, which is contiguous with the sheath tube and has an end for an endoscope insertion. The sheath tube comprises an inner sheath and an outer sheath joined together in a sleeve type. There is a space between inner and outer sheath. The inner sheath is connected to main tube, together building a channel via which the endoscope is inserted and withdrawn. The sheath tube is connected to main tube after completing puncture and dilation, then endoscope system is introduced for observation and operation. The present invention provides a percutaneous puncture and dilation visible irrigation-suction system and a method of using the same, with a continuous controllable visible negative pressure aspirator, achieving high irrigation and powerful suction efficiency, as well as clear endoscopic view.

Abstract: The present invention discloses an Asarum total polysaccharide extract with antitussive activity, an extraction method thereof and an application in the preparation of a medicine for preventing and treating coughs. The present invention proves that the Asarum total polysaccharide extract has a significant effect of suppressing cough for the first time through a large number of pharmacodynamic tests, has the therapeutic effect approximate to codeine, has the effect of prolonging the cough latent period better than codeine, and also finds that the total Asarum polysaccharide extract has the effects of reducing the cough sensitivity and suppressing the airway inflammation for the first time, has excellent preventive and therapeutic effects on various types of coughs, and can be used for preparing the medicines for preventing and treating cough-related diseases.