Development of a dressing component for preventing local pressure injury / 中国中西医结合急救杂志

Non-invasive mechanical ventilation(NIV)is increasingly being used as a respiratory support technique in clinical practice.However,the pressure-related injuries should not be overlooked.In order to prevent local pressure injuries caused by NIV technology,a series of preventive measures have been adopted in clinical work.These measures include the use of dressings to provide pressure relief to the local skin.Currently,in clinical practice,when using preventive dressings,nurses need to cut them themselves based on the physiological structure of the patient's nose,forehead,or face.However,precise cutting can be challenging.If the dressing is cut too small,it may not provide adequate prevention,and if it's cut too large,it can cover too much skin,affecting the nurse's observation and the patient's comfort.Additionally,during NIV treatment,the preventive dressings used may become curled or displaced,requiring nurses to re-cut and replace them.This process inevitably leads to material wastage,increasing the cost of dressing use for patients.Moreover,the cutting tools used must meet infection control requirements,adding to the nursing workload and reducing the compliance of nurses in changing dressings.Our research team has designed a ready-made pressure injury prevention dressing component for use with NIV masks to prevent pressure injuries to the nasal and facial areas.It is precisely designed,flexible in composition,easy to use,and can provide multiple usage modes.It effectively combines emergency care with pressure relief measures,reducing the occurrence of pressure injuries to the patient's nasal and facial areas.This improves patient comfort and treatment compliance,facilitates technology-based nursing,and enhances clinical efficiency.It has significant clinical application value and has been granted a National Utility Model Patent(ZL 202020529121.6).

ITS Sequence Analysis of Angelica from Different Source in Gansu Province / 中国中医药信息杂志

Objective To establish the basis of molecular systematics of Angelica from different areas of Gansu province so as to offer molecular basis of identification Gansu-produced Angelica with geoherbalism. Methods The ITS gene of Angelica was obtained by PCR and sequenced to be analyzed by DNAStar software to calculate the genetic distance among different specimens. Results The ITS sequence of Angelica between Min County and Zhang County of Gansu Province shows trivial differences with the range of 0.000 0～0.008 3. All 5 Min County-produced Angelica specimens have same bases at 586 site with "C" and 589 site with "T" with Zhang County-produced Angelica DG9 specimen, whereas the 586 site and 589 site bases of the other 3 Zhang County-produced Angelica specimens are "T" and "G" respectively. Conclusion The ITS sequence characteristics can be recognized as effective molecular marker of Angelica, and both 586 site base and 589 site base of the ITS sequence of Angelica can be recognized as identification bases of Min County-produced Angelica.