While the French scale aligns closely with the metric system, it introduces redundancy and the potential for rounding errors. This metrication problem is further complicated in medical contexts where metric and imperial units are used interchangeably.

Intended for use in angiographic procedures by physicians trained and experienced in angiographic techniques. Standard techniques for placement of vascular access sheaths, angiographic catheters and wire guides should be employed. The products on this website are available for sale in the United States.

Results of the present meta-analysis confirm the excellent safety profile of transradial procedures both with 5-Fr and 6-Fr system. A 5-Fr system could be preferred in patients with a higher bleeding propensity or kidney injury.

Soft PVC airway with smooth satin finish – Shields and protects the patient’s nasopharyngeal mucosa from adverse efects of repeated passage, as well as minimizing coughing and gagging during suctioning. Labeled with product size/I.D. in Millimeters (mm) and French gauge (Fr) – For quick and easy size identification.

2010年9月28日 · By convention, needles or single lumen catheters are sized by gauge and multi-lumen catheters are measured by French size. Whereas French size and diameter are related directly, gauge and size are related inversely; a lower gauge indicates a greater diameter. Gauge designations generally go no lower than (bigger than) 10 ga.

一次性无菌留置引流导管是适用于体腔内积液积浓的留置引流的一次性医学用具，有 5Fr、6Fr、7Fr、8.5F、10Fr、12Fr、16Fr、20Fr、24Fr、28Fr几种规格，采用医用级的聚氨酯(TPU)材料制造，内芯采用医用金属（不锈钢/铝合金）或无毒塑料（聚氨酯）材料制造。

2011年11月24日 · 医疗器械中 内窥镜的 “5Fr.工作通道”是什么意思？ “那3.5mm工作通道”又是什么意思呢？ 这是二种不同的表内径大小的方法，一个是英制英寸，一个公制毫米Fr是小数，Ch是英寸。

鼻咽呼吸道從鼻孔建立一暢通管道到口咽部，即使舌頭 往後掉 仍可確保部分氣體流通，屬一種輔助呼吸道。一般為PVC製成，常見內徑尺寸為4.5mm, 5.0mm, 5.5mm, 6.0mm, 6.5mm, 7.0mm。 意識不清或無意識有咳嗽和嘔吐反射，且需要維持呼吸道暢通的傷病患 (呼吸時有鼾音)。 疑似顱底骨折之傷病患，避免將鼻咽呼吸道插入腦中。 1. 打開呼吸道。 2. 凹面朝下，測量鼻尖到耳垂距離，選擇適當長度且鼻孔內徑所能容納之最大鼻咽呼吸道。 3. 塗上潤滑劑。 4. 鼻尖上推，選擇 …

近開口端管壁外緣，清楚標示各尺寸規格，方便辦識取用。 插入端斜削，管壁外緣經特殊處理，便於置入。 材質軟硬適中，病人使用黏膜不受傷，增加其舒適性。