Disposable Biliary Stent with Single Pigtail Drainage Tube

Introduction to PE Single-Tail Catheter

 (Biological/Urinary Dual-Purpose Type)

Medical-grade single-pig tail catheters can also be used as biliary stents and are commonly used drainage and support devices in the fields of urology and interventional gastroenterology.

Material: LDPE (low-density polyethylene), which is softer and more flexible than HDPE, conforms to human body cavities, has excellent biocompatibility, and shows no obvious rejection reaction after short-term placement.

PE material is resistant to chemical corrosion and compatible with sterilization methods such as ethylene oxide and gamma rays; it has a relatively low cost and is a cost-effective short-term interventional device.

Features of the single pig tail drainage catheter design：

Single pig tail (J-shaped) coiled end: One end of the catheter is coiled in a single loop. After entering the human body, it can naturally unfold and fit against the cavity wall to achieve effective fixation and prevent the catheter from shifting or falling out.

Pigtail Drainage Tube

Pigtail Drainage Catheter

Slender tube body: The diameter is usually between 3Fr and 8Fr (1mm to 2.7mm), which combines flexibility and support and can pass smoothly through slender cavities such as ureters and bile ducts.

Contrast markers: Barium sulfate and other contrast agents are added to the tube, making it clearly visible under X-ray, which facilitates intraoperative positioning and postoperative follow-up.

Side hole design: The tube body has multiple side holes, which can improve drainage efficiency and avoid drainage failure caused by blockage of a single hole.

Clinical applications of single pig tail catheter

1. Urological surgery scenario (ureteral catheter)

   After surgery for ureteral stones or kidney stones, it supports the ureteral wall and prevents postoperative stenosis and adhesions.

   Urine drainage in cases of hydronephrosis and ureteral obstruction relieves pressure in the renal pelvis and protects kidney function.

   Guidance and temporary drainage channels during procedures such as ureteroscopy and percutaneous nephrolithotomy.

2. Biliary intervention scenarios (biliary stents)

   It can be used to drain bile duct obstruction caused by gallstones, bile duct cancer, etc., and relieve jaundice symptoms.

   Postoperative support of the bile duct wall helps prevent biliary stricture and bile leakage.

   As a palliative treatment, it provides a long-term drainage pathway for patients with inoperable biliary obstruction.

Application and Customization of Single Pig Tail Drainage Tube

Indwelling time: Usually 1 to 3 months, which needs to be adjusted according to the patient's condition and the material, in order to avoid long-term indwelling causing infection or catheter aging.

Customized support: The tube diameter, length, number of side holes, and contrast agent concentration can be customized according to clinical needs to adapt to the cavity size and drainage requirements of different patients.