With the gradual improvement of national laws and regulations in the medical field,the initial generation cerebral blood flow detection system can no longer fully comply with the requirements of the current medical device regulations;it can not meet the needs of clinical diagnosis and needs to be upgraded.Based on the original equipment,this project proposed a brand-new design from the aspects of system architecture,hardware and software,and developed a cerebral blood flow detection system with safety,stability,interactivity,easy maintenance and clinical applicability,which is safe,rapid and accurate for the early diagnosis of cerebrovascular diseases.

Objective:To investigate the optical design effect of a new type of LED surgical light on navy ships.Methods:With Lighttools, an optical simulation software, the design of the total internal reflection (TIR) lens was optimized, the lighting characteristics of the surgical light on navy ships were analyzed, and the lighting effect of such design in the onboard operating room was simulated.Results:A TIR lens can efficiently collect 78% LED light. After secondary design, the central illuminance of the light spot of the LED lamp beads reached 9.1 klx, that of one single light was 42.5 klx, and that of the lighting system was 200.0 klx. The spot diameter of the surgical light used on navy ships was 238 mm with a uniform spot distribution.Conclusion:The lighting indicators of the new LED surgical light with TIR lens designed for navy ships can meet the industry standards.

Objective:To investigate the optical design effect of a new type of LED surgical light on navy ships.Methods:With Lighttools, an optical simulation software, the design of the total internal reflection (TIR) lens was optimized, the lighting characteristics of the surgical light on navy ships were analyzed, and the lighting effect of such design in the onboard operating room was simulated.Results:A TIR lens can efficiently collect 78% LED light. After secondary design, the central illuminance of the light spot of the LED lamp beads reached 9.1 klx, that of one single light was 42.5 klx, and that of the lighting system was 200.0 klx. The spot diameter of the surgical light used on navy ships was 238 mm with a uniform spot distribution.Conclusion:The lighting indicators of the new LED surgical light with TIR lens designed for navy ships can meet the industry standards.

Objective To investigate casualty management onboard naval vessels and identify demands on medical systems,as well as the scheme of medical system allocation.Methods A questionnaire survey and personal interviews were performed among ship surgeons and medical personnel onboard naval vessels.Then,survey results were analyzed statistically by using Excel software.Results The features and pattern of diseases and injuries among the ship crew during daily normal activity and prolonged deployment at sea were screened,and demands of medical systems onboard ships and existing problems were analyzed.Conclusion There were sharp contradictions between injury factors and treatment capacity onboard naval vessels.For this reason,a more practical medical staffing mechanism with better incentive and regular rotation of medical personnel should be established,and the scheme of medical system allocation with better environmental adaptability,better practicability and higher integration of medical systems should be built.

Objective To investigate casualty management onboard naval vessels and identify demands on medical systems,as well as the scheme of medical system allocation.Methods A questionnaire survey and personal interviews were performed among ship surgeons and medical personnel onboard naval vessels.Then,survey results were analyzed statistically by using Excel software.Results The features and pattern of diseases and injuries among the ship crew during daily normal activity and prolonged deployment at sea were screened,and demands of medical systems onboard ships and existing problems were analyzed.Conclusion There were sharp contradictions between injury factors and treatment capacity onboard naval vessels.For this reason,a more practical medical staffing mechanism with better incentive and regular rotation of medical personnel should be established,and the scheme of medical system allocation with better environmental adaptability,better practicability and higher integration of medical systems should be built.

Objective To explore the medical care and evacuation equipment at sea in China.Methods The present situation of the medical care and evacuation equipment at sea in China was discussed from the aspects of equipment system,medical service support,mechanism for utilization,management and maintenance as well as informatization.The problems were analyzed in equipment system,support ability,equipment integration and update as well as equipment performances.Results Some measures were put forward from the aspects of equipment system,support ability,equipment integration and update as well as equipment performances.Conclusion The development of medical care and evacuation equipment at sea has to take considerations on medical service requirements at sea,integrated civilian and military uses,personnel,innovation and etc.

Objective To investigate and analyze the features of medical systems onboard foreign amphibious ships,and to design the extended medical system onboard a certain dock landing ship of our navy.Methods Six medical modules were transfered from the ship-borne medical system and were installed on the flight deck of the ship,and the ward medical system was installed in the helicopter hangar,so as to form the extended medical system with the main capacities of surgical operation,hospitalization and accessory medical support.Results The extended medical system had the capacity of accommodating no less than 100 casualties (100 beds) and could hold 4 operating tables.The time for the installation of the system would be no more than 24 hours.Conclusions The expanded medical system could meet the demands of mass casualty care at sea,and improve the medical capability in its multi-role mission of the dock landing ship.

Objective To investigate and analyze the features of medical systems onboard foreign amphibious ships,and to design the extended medical system onboard a certain dock landing ship of our navy.Methods Six medical modules were transfered from the ship-borne medical system and were installed on the flight deck of the ship,and the ward medical system was installed in the helicopter hangar,so as to form the extended medical system with the main capacities of surgical operation,hospitalization and accessory medical support.Results The extended medical system had the capacity of accommodating no less than 100 casualties (100 beds) and could hold 4 operating tables.The time for the installation of the system would be no more than 24 hours.Conclusions The expanded medical system could meet the demands of mass casualty care at sea,and improve the medical capability in its multi-role mission of the dock landing ship.

Objective Medical system requirements of a large naval ship are presented in this paper to provide refer -ence for ship design and construction .Methods The relations between health service missions of a large naval ship and naval strategic needs were analyzed .According to the naval strategies in the new era , the health service mission of the ship was given.Results The medical system configuration scheme and ship design requirement related to the medical system were proposed .Conclusion The medical system design requirements and configuraion scheme can effectively improve the patient-treating capability in defensive combat on high seas and in diverse missions .They are also of great significance for maintaining troop strength and promoting a country′s ability to provide humanitarian aid .

The major ways to reinforce the ship-borne medical equipment are summarized to fit for the mechanical environment of modern ships.Based on the practice in reinforced design of ship-borne medical equipments,the principle and evaluation to carry out a reinforced design are simply discussed,according to the using conditions and function requirement.