n. 外科用套针（等于 trocar）
1.Objective To explore whether tube sealing on trochar with heparin dilution liquid is excellent than sodium chloride in patients with pneumocardial disease.
目的：探讨肝素稀释液用于肺心病患者静脉留置针封管是否优于生理盐水。
2.Objective To explore whether tube sealing on trochar with heparin dilution liquid is excellent than sodium chloride in patients with pneumocardial disease.
目的：探讨肝素稀释液用于肺心病患者静脉留置针封管是否优于生理盐水。