Ⅰ.Therapeutic Medical Equipment: Precise Execution of Therapeutic Actions and Dose Control
1.Radiotherapy Equipment (e.g., Linear Accelerators, Gamma Knives)
Application Scenarios:
Driving the treatment head (the core component for generating radiation) to move three-dimensionally along the X/Y/Z axes, or adjusting the angle of the patient treatment couch (e.g., tilting, rotating).
Core Functions:
Ensuring the positioning accuracy of the treatment head reaches ±0.05mm, so that the radiation focus completely aligns with the center of the lesion (a deviation exceeding 0.5mm may result in irradiation of normal organs);
Enabling "sub-millimeter-level" fine adjustment of the treatment couch to adapt to the body shape and lesion location of different patients (e.g., precise alignment with small pulmonary nodules is required for lung cancer patients).
2.Extracorporeal Shock Wave Lithotripter (ESWL)
Application Scenario:
Driving the shock wave emitter (treatment probe) to move along the trajectory of the human urinary system (kidneys, ureters), while adjusting the distance between the probe and the skin.
Core Function:
Through the high-precision transmission of the ball screw, the focal point of the shock wave is always locked onto the position of the calculus, preventing a decrease in lithotripsy effectiveness or damage to surrounding tissues (e.g., renal capsule) caused by probe deviation.
3.Precision Drug Infusion Equipment (e.g., Targeted Drug Delivery Pumps)
Application Scenarios:
Used in scenarios such as tumor targeted therapy and intensive care unit (ICU) care, it drives piston-type drug cartridges to deliver medicinal fluids with high precision.
Core Function:
Through the "micro-step transmission" of ball screws (with a minimum step size of up to 0.001mm), it achieves precise control of the medicinal fluid infusion dose (e.g., micro-adjustment ranging from 0.1 to 10 mL per hour), preventing compromised therapeutic effects or side effects caused by dose deviations.
Ⅱ.Rehabilitation and Assistive Medical Equipment: Simulating Human Movement, Ensuring Safety and Stability
1.Rehabilitation Robots (e.g., Upper/Lower Limb Rehabilitation Training Robots)
Application Scenarios:
Assisting patients with stroke or spinal cord injury in performing passive limb training (e.g., arm flexion/extension, leg pedaling) or active-assisted training.
Core Functions:
Ball screws drive robotic arms/training brackets to achieve "human-like" movement trajectories (e.g., precise 90° bending of the elbow joint), simulating normal human movement patterns;
The low-friction feature reduces additional burden on patients’ limbs caused by mechanical resistance. Meanwhile, combined with sensors for load feedback, it adjusts movement intensity to avoid muscle injuries in patients due to excessive force.
2.Rehabilitation Training Equipment (e.g., Adjustable Muscle Strength Training Machines)
Application Scenarios:
Used for patients’ muscle strength recovery training (e.g., knee joint flexion/extension training, shoulder abduction training), adjusting training load and movement range.
Core Functions:
Ball screws drive load adjustment devices (e.g., counterweight lifting, resistance plate positioning) to achieve precise load grading (e.g., stepless adjustment from 1kg to 50kg), meeting the training needs of patients in different rehabilitation stages (e.g., low-load training in the early post-surgical period, high-load intensive training during the recovery period).
Ⅲ.Surgery-Related Equipment: Enhancing Surgical Precision and Safety
1.Surgical Robots (e.g., Da Vinci Surgical System)
Application Scenarios:
Driving the end-effectors (e.g., needle holders, electrocautery hooks) of surgical robotic arms to perform micro-movements (such as suturing, cutting, and hemostasis).
Core Functions:
The "high transmission resolution" of ball screws (capable of scaling down surgeons’ hand movements proportionally, e.g., at a 10:1 ratio) enables sub-millimeter precision operations (such as suturing blood vessels in coronary artery bypass grafting);
The low backlash (backlash < 0.01mm) characteristic prevents delay or deviation of robotic arm movements, ensuring complete synchronization between surgical actions and surgeons’ operation instructions.
2.Operating Tables (Electric Multi-Functional Operating Tables)
Application Scenarios:
Enabling multi-degree-of-freedom movements of the operating table, such as lifting/lowering, forward/backward tilting, left/right tilting, and head/leg adjustment (e.g., orthopedic surgery requires elevating the patient’s leg by 30°, while abdominal surgery requires tilting the operating table at 15°).
Core Functions:
Ball screws drive various adjustment mechanisms, ensuring that the operating table can move stably even when carrying a patient (with a load capacity of over 200kg) and remains free of wobble after positioning (preventing displacement of instruments during surgery). Meanwhile, the adjustment precision reaches ±1mm, meeting the requirements of different surgical positions.
3.Minimally Invasive Surgical Instruments (e.g., Laparoscopic Manipulators)
Application Scenarios:
Driving instruments such as biopsy forceps and scissors at the front end of the laparoscope to open/close, rotate, or move forward/backward via ball screws.
Core Functions:
Enabling precise control of instrument movements within the narrow space of minimally invasive surgery (with an incision diameter of only 5-10mm), and avoiding damage to intra-abdominal organs (e.g., liver, intestines) caused by transmission errors.
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