Disposable precision measuring drainage bag is a specialized medical device used in medical settings to correctly collect and measure bodily fluids (such as urine and drainage fluid) discharged by the human body and avoid cross infection. Its core function revolves around the three core requirements of "correct measurement", "safe drainage", and "infection prevention and control". The specific application scenarios and functions are as follows:
1、 Core function: Accurate measurement, providing data support for clinical diagnosis and treatment
      This is the most crucial difference between it and ordinary drainage bags - it achieves accurate statistics of body fluid volume through special design, directly serving for disease diagnosis and treatment plan adjustment:
      Correctly monitor changes in body fluids: The bag body usually comes with a clearly marked measuring scale (with a division value of 5mL or 10mL, and some high-precision models can reach 1mL), and the material is transparent and deformation free. Medical staff can intuitively read the total amount and single discharge volume of urine/drainage fluid within 24 hours, avoiding measurement errors caused by blurry scales in ordinary drainage bags;
Assist in assessing the condition and efficacy:
       For patients with renal insufficiency, postoperative patients, and intensive care unit (ICU) patients: By monitoring hourly urine output, renal perfusion can be quickly assessed (if urine output is less than 30mL/h, it may indicate renal ischemia), and circulatory function can be evaluated for stability;
       For patients receiving diuretic treatment (such as heart failure and edema patients): Accurately measuring urine output can help doctors adjust the dosage of diuretics and avoid electrolyte imbalances caused by overdose;
       For patients with invasive drainage (such as abdominal drainage and thoracic drainage): Measuring the amount of drainage fluid can determine whether there is continuous bleeding or exudation in the body. If the drainage fluid suddenly increases or decreases, it may indicate changes in the condition (such as postoperative bleeding or drainage tube blockage), and timely intervention is needed.
2、 Basic function: Safe drainage, ensuring patient comfort and fluid management
As a drainage device, its core is to achieve effective collection of body fluids and avoid reflux, reducing patient discomfort and complications:
       Closed drainage, anti reflux and anti pollution: The bag body is tightly connected to the drainage tube (mostly made of silicone or PVC material, soft and biocompatible), and some models have anti reflux valves (such as duckbill valves and ball valves) at the inlet of the drainage tube, which can prevent the collected body fluids in the bag from flowing back into the human body (such as urine reflux to the bladder, which may cause urinary tract infections), while avoiding external air and pollutants from entering the drainage pathway;
Adapt to the drainage needs of different clinical scenarios:
       For patients with urinary incontinence and bedridden, continuous and closed collection of urine can be achieved by connecting a urinary catheter to a drainage bag, reducing bed sheet contamination, minimizing discomfort caused by frequent clothing changes, and reducing the workload of nursing staff;
       For postoperative invasive drainage (such as T-tube drainage after hepatobiliary surgery and pancreatic juice drainage after pancreatic surgery): it can be directly docked with the end of the drainage tube to safely collect abnormal exudate from the body, avoid skin damage caused by fluid leakage, and reduce the risk of local infection;
       Large capacity design, reducing replacement frequency: The conventional capacity is mostly 1000mL-2000mL, and some models can reach 3000mL, which can meet the body fluid collection needs of patients for 8-12 hours, reduce the interference caused by frequent replacement of drainage bags to patients (especially at night), and reduce the risk of contamination during operation.
3、 Security attribute: disposable, prevents cross infection
       In medical settings, 'disposable' is a core safety design that can cut off the transmission route of infection from the source:
       Avoid cross infection: Each drainage bag is sterile and individually packaged. It should be opened before use and disposed of according to medical waste standards (such as incineration and harmless treatment) after use to prevent cross transmission of pathogenic microorganisms (such as urinary tract infections and bloodstream infections) caused by repeated use (such as poor cleaning of ordinary containers);
       Material safety and reduced harm: The bag body and drainage tube are mostly made of polyethylene (PE), polyvinyl chloride (PVC) or silicone materials that meet medical standards. They have no odor, strong chemical stability, and will not release harmful substances when in contact with body fluids. The softness is moderate, reducing damage to the patient's skin and mucous membranes (such as the drainage tube being less likely to cause allergies if it comes into contact with the skin for a long time).
4、 Additional features: Improve usability and security
      Easy to operate design: The bottom of the bag is equipped with a spiral or press type drain valve, which allows medical staff or family members to quickly empty body fluids after measurement is completed without direct contact with liquids, reducing the risk of contamination; Some models are equipped with hanging straps and hooks, which can be fixed on the side of the hospital bed or wheelchair to prevent the bag from tipping over and causing bodily fluids to leak out;
       Clear identification for easy traceability: The bag body usually reserves a "patient information filling area" (such as name, bed number, and date of use) for medical staff to verify, avoiding measurement data errors caused by confusion of drainage bags, and complying with medical quality management standards.