Development of buckle tourniquet with timing function / 医疗卫生装备

Objective To develop a buckle tourniquet to facilitate further casualty treatment.Methods The requirements oftheater/field first aid of the PLA were analyzed.The existing spinning tourniquet was modified from the aspects of shorteningoperation time,controlling hemostatic pressure precisely,relieving tourniquet timely etc.The developed tourniquet was madeof engineering plastics and polyester webbing,and composed of a micro-regulation buckle,a main strap,a tightening band,atimer,a garrote,Velcro,a self-adhesive band,a garrote fixation clamp etc.Results The tourniquet had the operation timebeing 11.52 s,and avoided ischemic necrosis of tissues by automatic alarm in case of 1-h hemostasis for upper limbs or 1.5-hhemostasis for lower limbers.Conclusion The tourniquet gains advantages in low cost,high portability,easy operation,high efficiency and timing function,and thus meets the requirements for theater/field first aid.

Development of portable oxygen moisture bottle / 医疗卫生装备

To develop a portable oxygen moisture bottle. The bottle adopted a double-tightened and separate structure, whose shell was made of transparent materials. The inner liner was made of PTFE hydrophobic mem-brane filter, which applied a 3-layer structure to inlet oxygen into the shell through the air membrane filter at all directions. The bottle had no requirements for site and high reliability, and the desired use for continuous oxygen inhalation was realized. The bottle has a simple structure, low cost, easy maintenance and high portability, and gains ad-vantages over the traditional one.

Research and Development of Puncture Needle Depth-controlled Device / 医疗卫生装备

Objective To research and develop a kind of puncture needle depth -controlled device. Methods Based on mechanical design principle, and with stainless steel and plexiglass as materials, the puncture needle depth -controlled device is composed of syringe, needle guard, pin pusher, scale gauge, depth-controlled nut, and locking screw and pedestal hood. Results The puncture needle depth-controlled device is suitable for different kinds of puncture needles and syringe needles, and has many advantages including operation labor -saving, controlling depth, diminishing contamination and infection, avoiding needle guard slippage and needle bending. The operation can be implemented in one minute. Conclusion The kind of puncture needle depth-controlled device is developed successfully and as new first-aid equipment is provided for war wounds or accidents scene rescue.

Design of pneumatic gas-control cardiopulmonary resuscitator for field first aid / 医疗卫生装备

In view of the special disadvantageous conditions in battlefield, a portable pneumatic gas -control cardiopulmonary resuscitator is developed for the critical wounded care in battlefield, which satisfies the requirements of medical physiological parameters.