OBJECTIVETo investigate the traditional VSD from one-way improvement to two-way suction drainage, meet the needs of clinical treatment, and prevent bung tube.

METHODSOne-way multi-side hole drainage tube of the traditional VSD was modified for bi-directional multi-side hole drainage, seaweed salt hydration alcohol polyethylene foam, Semipermeable membrane paste of Polyurethane and acrylic remains the same with that of the traditional VSD.

RESULTSThe applications of bi-directional multi-side hole drainage pipe can reduce the rate of plugging, rinse the complex and infection wound, create a physiological moist healing environment, and promote wound healing.

CONCLUSIONSThe improved VSD can reduce the failure rate and increase the therapeutic effect.

Drainage ; instrumentation ; methods ; Equipment Design ; Suction ; instrumentation ; methods ; Vacuum

OBJECTIVETo compare and evaluate the effectiveness of two kinds of medical drainage bag.

METHODS206 patients were randomly divided into two groups each of which consisted of 103 patients. All the data including four indices, such as the time required to replace the drainage bags, the incidence of the bags detached, draining fluid splashing rates during the replacement of the bags, patient and medical staff satisfaction, were collected and analyzed statistically.

RESULTSThe time required to replace the drainage bags, the incidence of the bags detached and draining fluid splashing rates during the replacement of the bags of the experimental group were significantly lower than those of the control group (P < 0.05), while the patient and medical staff satisfaction were significantly higher than those of the control group (P < 0.05).

CONCLUSIONIt is convenient, quick and time and effort saving to use the neotype medical drainage bags. Hence, the use of neotype medical drainage bags could help to improve the work efficiency, effectively prevent occupational injuries and protect health care workers.

Adult ; Aged ; Drainage ; instrumentation ; methods ; Female ; Humans ; Male ; Middle Aged

We report two patients, who have used Pneumostat to replace the conventional underwater seal drainage system for recurrent pneumothorax. Both patients had required repeated chest tube insertion for recurrent pneumothorax and needed a longer hospital stay. Both patients were able to be discharged with the Pneumostat device and were reviewed in outpatient clinic. Both patients had optimal clinical improvement and chest X-ray showed no residual pneumothorax.
*Ambulatory Care ; *Chest Tubes ; Drainage/*instrumentation ; Pneumothorax/*therapy

Based on the improved design of the existing thoracic cavity closed drainage system, a new multi-functional device is developed and is described here in detail. The device is more convenient and more efficient than the existing system. Besides, it has a function of autotransfusion. Animal experimental results show that it has attained the goal of the improved design.
Drainage ; instrumentation ; methods ; Equipment Design ; Humans ; Thoracic Cavity ; Thoracic Surgical Procedures ; instrumentation

OBJECTIVETo investigate the influence of ozonated water on physical and chemical properties of vacuum sealing drainage (VSD) materials.

METHODSVSD materials (foam and sealing membrane) were immersed in 10 µg/ml ozonated water for 1 h twice daily for 8 days. The foam appearance and microscopic structure of the materials were observed, and tensile tests and Raman spectrum scan were performed assess the effect of ozonated water. Simulated VSD devices were prepared and tested for leakproofness under negative pressure after ozonated water treatment.

RESULTSzonated water treatment for 8 days caused no obvious abnormal changes in the foam appearance or microscopic structure of the materials. The maximum tensile load of foam before and after ozonated water treatment was 4.25∓0.73 kgf and 2.44∓0.19 kgf (P=0.000), the momentary distance when the foam torn before and after intervention was 92.54∓12.83 mm and 64.44∓4.60 mm, respectively (P=0.000). The corresponding results for VSD sealing membrane were 0.70∓0.58 kgf and 0.71∓0.08 kgf (P=0.698), and 99.30∓10.27 mm and 100.95∓18.22 mm (P=0.966), respectively. Raman spectroscopy revealed changes in only several wave intensities and no new chemical groups appeared within the scan range of 400-4000 cm(-1). The VSD device was well hermetic after treatment with ozonated water.

CONCLUSIONExcept for a decreased stretch resistance property of the foam, VSD materials display no obvious changes in physical and chemical characteristics after treatment with ozonated water for 8 days.

Biomedical and Dental Materials ; chemistry ; Drainage ; instrumentation ; methods ; Ozone ; Vacuum ; Water ; chemistry

Artificial conduits, including ureteral stents and catheters, are used widely as drainage tools in the urinary system. However, various bacteria in the urine and long duration of insertion can arouse the biofilm formation on the pipeline surface, which calls for effective antibacterial strategy. In this article, the mechanism of Catheter Associated Urinary Tract Infections (CAUTI) is explained from the perspective of etiology. Then, the biofilm formation conditions and the features of urine are analyzed, the antibacterial agents and approaches suitable for ureteral stents and catheters are introduced and their pros and cons are discussed respectively.
Anti-Bacterial Agents ; Catheters ; Drainage ; Humans ; Stents ; Urinary Catheterization ; instrumentation ; Urinary Tract Infections

Hilar cholangiocarcinoma has an extremely poor prognosis and is usually diagnosed at an advanced stage. Palliative management plays an important role in the treatment of patients with inoperable hilar cholangiocarcinoma. Surgical, percutaneous, and endoscopic biliary drainage are three modalities available to resolve obstructive jaundice. Plastic stents were widely used in the past; however, self-expanding metal stents (SEMS) have become popular recently due to their long patency and reduced risk of side branch obstruction, and SEMS are now the accepted treatment of choice for hilar cholangiocarcinoma. Bilateral drainage provides more normal and physiological biliary flow through the biliary ductal system than that of unilateral drainage. Unilateral drainage was preferred until recently because of its technical simplicity. But, with advancements in technology, bilateral drainage now achieves a high success rate and is the preferred treatment modality in many centers. However, the choice of unilateral or bilateral drainage is still controversial, and more studies are needed. This review focuses on the endoscopic method and discusses stent materials and types of procedures for patients with a hilar cholangiocarcinoma.
Bile Duct Neoplasms/*surgery ; Bile Ducts, Intrahepatic/*surgery ; Cholangiocarcinoma/*surgery ; Cholangiopancreatography, Endoscopic Retrograde ; Drainage/adverse effects/instrumentation/*methods ; *Endoscopy/adverse effects/instrumentation ; Humans ; Prosthesis Design ; Stents ; Treatment Outcome

Since its initial introduction in 1976, percutaneous nephrolithotomy (PCNL) has been widely performed for the management of large renal stones and currently is recommended for staghorn calculi, kidney stones larger than 2 cm, and shock wave lithotripsy-resistant lower pole stones greater than 1 cm. However, except for open and laparoscopic surgery, PCNL is the most invasive of the minimally invasive stone surgery techniques. Over the years, technical and instrumental advances have been made in PCNL to reduce morbidity and improve effectiveness. A thorough review of the recent literature identified five major areas of progress for the advancement of PCNL: patient positioning, method of percutaneous access, development of lithotriptors, miniaturized access tracts, and postoperative nephrostomy tube management. This review provides an overview of recent advancements in PCNL and the outcomes of each area of progress and notes how much we achieve with less invasive PCNL. This information may allow us to consider the future role and future developments of PCNL.
Catheters, Indwelling ; Drainage ; Humans ; Kidney Calculi/*surgery ; Lithotripsy/instrumentation ; Nephrostomy, Percutaneous/*instrumentation/*methods ; *Patient Positioning ; *Postoperative Care ; Radiology, Interventional ; Ultrasonography, Interventional

AIMTo discuss the merits of "tubes treatment" for esophageal fistula (EF).

METHODSA 66-year-old female who suffered from a bronchoesophageal and esophagothoratic fistula underwent a successful "three tubes treatment" (close chest drainage, negative pressure suction at the leak, and nasojejunal feeding tube), combination of antibiotics, antacid drugs and nutritional support. Another 55-year-old male patient developed an esophagopleural fistula (EPF) after esophageal carcinoma operation. He too was treated conservatively with the three tubes strategy as mentioned above towards a favorable outcome.

RESULTSThe two patients recovered with the tubes treatment, felt well and became able to eat and drink, presenting no complaint.

CONCLUSIONTubes treatment is an effective basic way for EF. It may be an alternative treatment option.

Aged ; Chest Tubes ; Combined Modality Therapy ; Drainage ; instrumentation ; methods ; Enteral Nutrition ; methods ; Esophageal Fistula ; Female ; Humans ; Intubation, Intratracheal ; methods ; Male ; Middle Aged ; Suction ; instrumentation ; methods ; Treatment Outcome

OBJECTIVE: To evaluate the utility and advantages of the coaxial snare technique in the retrieval of tubular foreign bodies. MATERIALS AND METHODS: Using the coaxial snare technique, we attempted to retrieve tubular foreign bodies present in seven patients. The bodies were either stents which were malpositioned or had migrated from their correct position in the vascular system (n=2), a fragmented venous introducer sheath (n=1), fragmented drainage catheters in the biliary tree (n=2), or fractured external drainage catheters in the urinary tract (n=2). After passing a guidewire and/or a dilator through the lumina of these foreign bodies, we introduced a loop snare over the guidewire or dilator, thus capturing and retrieving them. RESULTS: In all cases, it was possible to retrieve or reposition the various items, using a minimum-sized introducer sheath or a tract. No folding was involved. In no case were surgical procedures required, and no complications were encountered. CONCLUSION: The coaxial snare technique, an application of the loop snare technique, is a useful and safe method for the retrieval of tubular foreign bodies, and one which involves minimal injury to the patient.
Adult ; Case Report ; Catheters, Indwelling ; Drainage/instrumentation ; Foreign Bodies/*radiography/*therapy ; Foreign-Body Migration ; Human ; Male ; Middle Age ; *Stents