TJZ25RA DC Gear Motor for Electric Medical Staplers: Precision Micro-Drive, Safeguarding Surgical Precision and Efficiency

The TJZ25RA DC gear motor is a medical-grade core drive component customized for electric medical staplers, integrating ultra-precise torque control, sterile-compatible structural design and low-vibration silent transmission technology. Powered by 3.7V/7.4V medical-grade rechargeable lithium batteries (compliant with medical device power supply standards), it achieves micron-level actuation positioning and stable constant torque output, supporting core surgical functions such as automatic staple firing, precise tissue compression and uniform staple formation for abdominal, thoracic, gastrointestinal and minimally invasive surgical procedures. It meets the stringent requirements of medical devices for surgical precision, operational stability, sterile safety and miniaturization in operating room clinical scenarios.

Working Principle

Electric medical staplers rely on the TJZ25RA motor for the critical power drive of staple firing and tissue compression—core steps that directly affect surgical outcomes. The motor converts electrical energy into smooth, low-speed mechanical rotation via its optimized medical-grade multi-stage precision gear reduction system, driving the stapler’s internal screw push rod and firing mechanism to move linearly at a customized constant speed (5-15mm/s). After the surgical stapler is accurately positioned on the target tissue, the motor provides calibrated constant torque to compress the tissue to a standard thickness (matching the staple specification) without over-compression (causing tissue ischemia) or under-compression (leading to staple loosening/bleeding). It then drives the staple cartridge to fire staples in a uniform sequence, completing tissue anastomosis or resection with consistent staple formation and spacing. The motor is integrated with the stapler’s pressure and position sensor module, with real-time feedback to stop actuation instantly when abnormal resistance or position deviation is detected, avoiding surgical risks such as staple jamming or tissue damage.

Core Advantages

Adapted to the high-risk, high-precision clinical requirements of electric medical staplers, the TJZ25RA motor features medical-grade performance and safety design with outstanding scenario adaptability:

1. Surgical-grade precise actuation (±0.05mm linear positioning): Calibrated torque and speed control ensure uniform tissue compression and staple firing spacing, eliminating manual operation errors of traditional manual staplers and improving the consistency of surgical anastomosis.

2. Medical-grade sterile compatibility: Adopts fully sealed IPX7 waterproof and dustproof structural design, with smooth, non-porous casing surfaces that can withstand high-temperature high-pressure sterilization (autoclave) and low-temperature plasma sterilization, complying with hospital sterile operating room standards.

3. Low-vibration & ultra-silent operation (≤28dB): Optimized gear meshing precision and shock-absorbing medical-grade lubricants minimize motor vibration and noise during actuation, avoiding interference with surgical operation and doctor-patient communication in the operating room.

4. Stable constant torque output (0.3-1.2N·m customizable): Calibrated for different surgical staple specifications (3.5mm/4.8mm/6.0mm) and tissue types (soft viscera/hard connective tissue), ensuring reliable staple formation without tissue tear or staple failure.

5. Miniaturized & lightweight design (body diameter ≤25mm): Matches the ergonomic grip of electric medical staplers (including minimally invasive laparoscopic staplers), reducing the burden of long-time handheld operation for surgeons and adapting to narrow surgical field of view in minimally invasive surgery.

6. Medical-grade safety protection: Built-in overcurrent, overheat, locked-rotor and torque overload protection modules, all in line with IEC 60601 medical electrical equipment safety standards; instant power cut in abnormal conditions to prevent surgical accidents such as staple jamming or device failure.

7. Long clinical service life (≥10,000 actuation cycles): Adopts medical-grade wear-resistant engineering plastic gears and corrosion-resistant stainless steel output shafts, resistant to repeated sterilization and clinical frequent use without performance degradation.

8. Fast charge & long surgical endurance: Optimized low power consumption design, a single full charge supports ≥50 clinical actuation cycles, meeting the continuous operation needs of multi-stage surgeries without frequent charging.

About Tyhe Motor

Tyhe Motor provides Class II medical device-grade TJZ25RA series DC gear motors and customized drive solutions for electric medical staplers. We tailor key parameters such as output torque, actuation speed, linear positioning accuracy and sterilization compatibility according to the design requirements of open surgery staplers, minimally invasive laparoscopic staplers and specialized tissue staplers (gastrointestinal/thoracic), fully complying with IEC 60601-1 medical electrical equipment safety standards and domestic medical device registration specifications (NMPA). Our medical-grade precision drive systems ensure the surgical precision, operational stability and clinical safety of electric medical staplers, effectively reducing surgical operation difficulty and complication risks, and helping medical device manufacturers enhance the clinical competitiveness of surgical stapler products in the field of minimally invasive surgery and precision medicine.