Development of disposable anticoagulant negative pressure syringe
10.7687/j.issn1003-8868.2018.01.030
- VernacularTitle:一次性抗凝负压注射器的研制
- Author:
Ming-Ling WANG
1
;
Li ZHAO
;
Chao MA
;
Guang-Wang LIU
;
Xue-Kui LIU
Author Information
1. 徐州市中心医院手术室
- Keywords:
syringe;
negative pressure;
anticoagulation;
bone marrow;
mononuclear cell
- From:
Chinese Medical Equipment Journal
2018;39(1):30-32
- CountryChina
- Language:Chinese
-
Abstract:
Objective To develop a disposable negative pressure syringe to solve the problems in bone marrow aspiration. Methods The syringe was composed of an injector and a self-contained puncture needle.The injector consisted of a barrel,a plunger and a tip.The plunger had its front end placed in the barrel and connected with the tip.The tip clung to the inner wall and could slide along it,and the upper end of the cylinder was connected closely with a negative-pressure sealing cap.A negative-pressure cavity was formed between the sealing cap and the tip,and an anticoagulation layer existed at the cylinder inner wall in the cavity.The blood taking needle was made up of a bone puncture needle and a hub.Results The developed syringe gained stable negative pressure,low time and workload consumption during bone marrow aspiration when compared with the conventional tools. Conclusion The syringe increases the quality of bone marrow aspiration while decreases the workload of medical staffs,and thus is worthy promoting practically.
