High-quality medical pump components Welch Allyn Spot Vital Signs Lxi M26B18153R, 0140522, P05C09R, 14526 with DC 6V

Welch Allyn Spot Vital Signs Lxi pump assembly models include M26B18153R, 0140522, P05C09R, and 14526. Each model has a different focus: the M26B18153R is a basic drive pump, the 0140522 integrates an integrated pressure feedback module, the P05C09R features an enhanced low-noise design, and the 14526 emphasizes long-life operation. These pumps are suitable for high-frequency use in outpatient and emergency settings.

The pump assembly has a rated voltage of DC 6V and integrates a drive motor, pressure regulating valve, and noise-reducing housing. Its primary function is to provide precise pneumatic power for inflation and deflation of the blood pressure cuff. The assembly features a very compact design, measuring approximately 65mm * 45mm * 30mm and weighing approximately 85g.

1. Precise Pressure Control

   During NIBP measurement, the device receives and executes commands from the host computer, rapidly inflating the cuff to the preset pressure with a high inflation rate. During the deflation phase, a built-in proportional valve achieves linear deflation, ensuring the pressure sensor captures subtle changes in arterial pulses and providing a stable pressure gradient for systolic and diastolic pressure calculations.

2. Pressure Feedback and Regulation

   Model 0140522 features a built-in piezoresistive pressure sensor that monitors the pump's output pressure in real time to adjust the pump speed and avoid overpressure that could cause patient discomfort.

3. Low-Noise Operation

   The P05C09R pump is encased in a sound-absorbing foam, resulting in an operating noise level of ≤45dB, significantly lower than that of standard pump components. This reduces environmental noise in clinics, wards, and other settings, enhancing patient comfort.

4. Overload and Overheat Protection

   The pump incorporates an integrated overcurrent protection circuit that automatically shuts off power if the motor is overloaded due to airway obstruction. A built-in temperature sensor triggers thermal protection when the pump temperature exceeds 60°C, preventing motor burnout and extending component life.