Modification of transparent catheter sheaths for intra-endoscopic surgery in hypertensive intracerebral hemorrhage(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2026年第1期
- Page:
- 84-89
- Research Field:
- 医学信号处理与医学仪器
- Publishing date:
Info
- Title:
- Modification of transparent catheter sheaths for intra-endoscopic surgery in hypertensive intracerebral hemorrhage
- Author(s):
- ZHU Yan1; 2; CHEN Pengyu3; QUE Siwei1; LENG Haibin1; XIE Jinshen2; GAO Lei2; LIU Tiejian2; PENG Yuping2; 3
- 1. Department of Neurosurgery, the First Peoples Hospital of Changde City, Changde 415000, China 2. Department of Neurosurgery, the Third Affiliated Hospital of Southern Medical University, Guangzhou 510000, China 3. Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
- Keywords:
- Keywords: hypertensive intracerebral hemorrhage neuroendoscopy intra-endoscopic transparent catheter sheath
- PACS:
- R318.6；R608
- DOI:
- DOI:10.3969/j.issn.1005-202X.2026.01.011
- Abstract:
- Abstract: Objective To investigate the causes of recurrent lens blurring during intraventricular intra-endoscopic surgery and identify a suitable transparent catheter sheath, thereby resolving lens contamination and reducing surgical complexity. Methods Based on physical formulas, it was calculated that a catheter sheath with an inner diameter between 9.17 and 14.44 mm could avoid the formation of turbulence that obscured the lens. In vitro experiments were conducted using transparent catheter sheaths of different diameters within this range. The number of side holes on the catheter sheath was also adjusted to screen for the optimal inner diameter. The transparent catheter sheath was then modified accordingly. Twenty cases of cranial hematoma models were constructed. The modified transparent catheter sheath and intra-endoscopic technique were used to remove the model hematoma. According to the transparent catheter sheaths used during surgery, they were divided into the modified transparent catheter sheath group (n=10) and the traditional transparent catheter sheath group (n=10). The time required for complete hematoma removal and the frequency of intra-surgical lens contaminations were recorded for each simulated surgery, followed by statistical analysis. Results (1) The liquid level rise differed among transparent catheter sheaths of different diameters. The smaller the inner diameter, the higher the liquid level rise. When the lens was 3 cm from the liquid plane, lens contamination occurred when the inner diameter was less than 9.0 mm, whereas no lens contamination was observed when the inner diameter was greater than 9.5 mm. (2) In the simulated surgeries, statistically significant differences were detected in both surgical time and frequency of lens contamination between the modified transparent catheter sheath group and the traditional transparent catheter sheath group (P<0.05). Conclusion Adjusting the inner diameter of the transparent catheter sheath to 9.5 mm and adding 4 side holes with a diameter of 4 mm on the catheter sheath can address the issue of frequent intra-surgical lens contamination while reducing surgical difficulty and associated risks.
Last Update: 2026-01-27