3L Spirometer Calibration Syringe

Core Product Overview

The 3L Spirometer Calibration Syringe is a professional tool specifically designed for calibrating spirometers. As an indispensable critical step before pulmonary function testing, it directly determines the credibility of clinical test data. Featuring a low-traction piston design, the product is easy and labor-saving to operate, while boasting high precision and excellent sealing performance. Compatible with various brands of spirometers on the market without the need for additional adapters, it is a practical tool for hospital respiratory departments, physical examination centers, community health service centers, and pulmonary function testing laboratories, providing a fundamental guarantee for accurate testing.

Core Product Features

Easy Operation: The low-traction piston design ensures smooth and effortless pushing/pulling. Medical staff can master it without complex training, saving operation time;

Reliable Precision: With a calibration error rate ≤±3%, it can accurately simulate human respiratory volume, ensuring consistency between spirometer measurements and actual values, and guaranteeing accurate test data;

Excellent Sealing: The tapered interface design effectively reduces the risk of air leakage, avoiding calibration deviations caused by poor sealing and further enhancing data reliability;

Comprehensive Functions: Supports volume calibration and three-flow linear verification, meeting the core calibration needs of spirometers and adapting to different testing modes;

Strong Compatibility: The standard interface design is fully compatible with spirometers of various brands and models, eliminating the need for separate customization and reducing usage costs;

Ergonomic Comfort: The spherical handle adopts an ergonomic design, fitting the palm perfectly and reducing fatigue during prolonged operation;

Smooth Operation: The inner wall of the syringe barrel is smooth without burrs, ensuring no jamming when pushing/pulling the piston. It simulates respiratory movements more naturally, making the calibration process more stable.

Product Specifications & Parameters

Main Functions

Calibrate Instrument Precision: By accurately simulating the gas volume during human respiration, it corrects deviations between spirometer measurements and actual values, making device results more precise and avoiding misdiagnosis caused by instrument errors;

Eliminate Systematic Errors: Regular calibration with the 3L Spirometer Calibration Syringe reduces inherent errors of the instrument or measurement system, maintaining long-term measurement accuracy and extending device service life;

Ensure Data Reliability: Accurate calibration is a prerequisite for reliable pulmonary function test results. It provides precise data support for clinical diagnosis, condition monitoring, and treatment effect evaluation, helping doctors formulate more appropriate treatment plans.

Application Scenarios

Mainly applicable to various institutions conducting pulmonary function testing, including hospital respiratory departments, Intensive Care Units (ICU), physical examination centers, community health service centers, occupational disease prevention and control institutions, and pulmonary function testing laboratories. Whether for pulmonary function screening in routine health check-ups or condition monitoring of patients with respiratory diseases such as chronic bronchitis, asthma, and emphysema, this calibration syringe is required to calibrate equipment and ensure valid test data.

Usage Method

Preparation: Check that the 3L Spirometer Calibration Syringe is clean and undamaged. Ensure the spirometer is in standby mode and the test environment temperature is stable at 15-40℃ (avoid extreme temperatures that may affect calibration results);

Connecting the Device: First connect the calibration syringe to the adapter, then dock with the spirometer, ensuring a tight and airtight connection;

Initiate Calibration Program: Select the "Calibration" mode on the spirometer. Push and pull the syringe piston at a constant speed (simulating natural human breathing) 3-5 times as prompted by the device to obtain stable calibration data;

Calibration Completion: The instrument will automatically display calibration data and error rate; medical staff should record relevant information;

Result Judgment: An error rate ≤±3% is considered qualified, and the spirometer is ready for use. If the error rate exceeds ±3%, re-calibration is required. If calibration fails repeatedly, inspect the spirometer for faults (e.g., normal connection of the flow sensor).

Maintenance & Precautions

Regular Calibration: It is recommended to calibrate the syringe itself at least once a week. If the device has been moved, repaired, or unused for a long time, calibrate it immediately before use;

Avoid Contamination: Clean the inner wall of the syringe promptly after use to remove dust or liquid residues, preventing impurities from affecting sealing performance and calibration precision;

Proper Storage: Store in a dry, well-ventilated environment, away from high temperatures, humidity, or corrosive substances to avoid material aging;

Compatibility Check: Confirm that the syringe volume matches the spirometer model before use to prevent calibration failure due to incompatibility;

Interface Customization: The standard interface has an inner diameter of 28mm. For other specifications, contact customer service with the spirometer brand to support personalized adaptation.