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首页> 外文期刊>Surgical Endoscopy >A new device for the detection and recognition of blood vessels in laparoscopic surgery.
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A new device for the detection and recognition of blood vessels in laparoscopic surgery.

机译：一种用于在腹腔镜手术中检测和识别血管的新设备。

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BACKGROUND: The recognition and localization of blood vessels to prevent their intraoperative perforation poses a major problem in laparoscopic surgery. The endoscopic pulse detector is a new device that has been specially developed for the detection and recognition of blood vessels in laparoscopic surgery. The instrument uses an accelerometer to detect a pulse, and it is inexpensive and simple to use. The aim of this study was to investigate the performance and possibilities of the new instrument. METHODS: The instrument's performance and features were tested in laboratory conditions by use of simulated circulation. We assessed the dependence of the signal amplitude recorded by the instrument over a given blood vessel on the blood pump frequency change (36-130/min), circulating systolic pressure change (40-180 mm Hg), and adjacent blood vessel pulsations. Clinically, the instrument was tested in a randomized study in 40 elective noncomplicated laparoscopic cholecystectomies, where we assessed the time needed for the preparation of Calot's triangle and positioning of the cystic artery. RESULTS: The results of laboratory testing showed that the instrument operated throughout the frequency range of 36-130/min and a circulating systolic pressure range of 40-180 mmHg, while the signal amplitude rose with pressure increase. The results of clinical testing showed that use of the pulse detector in laparoscopic cholecystectomy significantly reduced the time needed to prepare Calot's triangle (t = 3.91; df = 38; p <0.001) and also made the positioning of the cystic artery more reliable. CONCLUSION: The study showed the new instrument to be very simple to use and potentially valuable in laparoscopic surgery, primarily for the differentiation of blood vessels of similar structures.
机译：背景：识别和定位血管以防止其术中穿孔是腹腔镜手术中的主要问题。内窥镜脉冲检测器是一种新设备，专门为腹腔镜手术中的血管检测和识别而开发。该仪器使用加速度计检测脉冲，价格便宜且易于使用。这项研究的目的是研究新仪器的性能和可能性。方法：使用模拟循环在实验室条件下测试了仪器的性能和特征。我们评估了仪器在给定血管上记录的信号幅度对血泵频率变化（36-130 / min），循环收缩压变化（40-180 mm Hg）和相邻血管搏动的依赖性。在临床上，该仪器在40项选择性非复杂性腹腔镜胆囊切除术中进行了一项随机研究，在该研究中，我们评估了准备Calot三角和定位胆囊动脉所需的时间。结果：实验室测试结果表明，该仪器在36-130 / min的频率范围内工作，循环收缩压范围为40-180 mmHg，而信号幅度随压力增加而上升。临床测试结果表明，在腹腔镜胆囊切除术中使用脉冲检测器显着减少了准备卡洛特三角形所需的时间（t = 3.91; df = 38; p <0.001），并且还使胆囊动脉的定位更加可靠。结论：该研究表明该新仪器使用非常简单，在腹腔镜手术中具有潜在的价值，主要用于分化相似结构的血管。

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