Detection device of thrombelastogram instrument

Abstract

The invention provides a detection device of a thrombelastogram instrument. The detection device comprises a base (1), a stand column (2), a first fixing frame (3), a second fixing frame (4), an overhanging wire (5), a first gear rod (6), a second gear rod (7), a limiting rod assembly (8), a cup cover (9), a test cup (10) and a rotary table (11). The first gear rod (6) comprises a first gear (61) and a first positioning rod (62), the second gear rod (7) comprises a second gear (71), a second positioning rod (72) and a transmission fixing piece (73), the limiting rod assembly (8) comprises a limiting rod (81) and a spring (80), and the cup cover (9) comprises a circular boss (91), connecting teeth (92) and a cup cover body (93). The device can effectively ensure that the overhanging wire is separated from the cup cover, the separation is simple, the disassembly is convenient, meanwhile, the coaxiality of the overhanging wire and the cup cover is ensured, and the influence of the disassembly process on the measurement precision is avoided.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a detection device of a thromboelastography instrument. Background technique [0002] Thromboelastography is a medical instrument that monitors and analyzes the coagulation process. It is an analyzer that monitors the coagulation process from the entire dynamic process of platelet aggregation, coagulation, and fibrinolysis, so as to achieve the purpose of monitoring and analyzing the coagulation state of blood samples. The existing thrombelastograph detects by hanging a measuring rod or a suspension wire from the lower end of the twisted wire; however, the interconnection of the mechanical structure parts in the existing detection device cannot fully meet the needs of the product itself: the thrombelastograph After use, the cup lid must be separated from the suspension wire assembly. At present, it is generally unloaded manually. The unloading process is complicated, th...

AI Technical Summary

Problems solved by technology

The existing thrombelastograph detects by hanging a measuring rod or a suspension wire from the lower end of the twisted wire; however, the interconnection of the mechanical structure parts in the existing detection device cannot fully meet the needs of the product itself: the thrombelastograph After use, the cup lid must be separated from the suspension wire assembly. At present, it is generally unloaded manually. The unloading process is complicated, the operation is cumbersome, and it takes a long time. At the same time, the accuracy of the suspension wire is easily affected after manual unloading; in addition , the direct assembly between the cup cover and the suspension wire assembly, and repeated disengagement and assembly after use will affect its assembly accuracy; "Photoelectric micro-rotation angle measurement device for thromboelastography" (Xiong Huifang et al., Modern Scientific Instruments, 2020 February No. 1, pages 14-18) clearly pointed out that the coaxiality of the suspension wire and the cup cover (or suspension needle) has a great influence on the measurement accuracy, so repeated disassembly and assembly of the suspension wire may cause The coaxiality between the lid and the cup is reduced, resulting in a decrease in detection accuracy and a large test error

[0003] Moreover, it is difficult to disengage the suspension wire from the cup cover in the existing thromboelastograph, and manual disassembly is extremely labor-intensive and time-consuming. The suspending wire that the needle directly contacts and drives has a small diameter due to its small torque resistance, which makes it difficult to process, unstable performance after processing, easy to be damaged, etc.), and the suspension wire is easily damaged during the disassembly process, resulting in It is necessary to reprocess new suspension wires, wasting a lot of manpower and material resources

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