(I) Structural and Material Requirements

1. Frame Material: High-quality steel Q235, environmentally friendly polymer coating (electrostatic powder painted), reinforced with hospital-grade disinfectant resistance, seamless welding, and highly polished joints, and free from corrosion and fading risks.

2. Structural Craftsmanship: The overall structure is robust and stable, with no obvious welding marks at component connection points and no workmanship defects (such as burrs, looseness, deformation, etc.), conforming to modern medical equipment design aesthetics.

Mattress - removable, made of polyurethane foam, anti-decubitus, thickness 100 mm. Mattress cover is made of polyurethane (waterproof, breathable, and resistant to medical disinfectants), with zip. Main casters: 4 pcs 360° rotating polyurethane casters (unmarked). Caster diameter: 200 mm, enclosed with plastic lateral covers. Fifth-wheel caster. Central braking system. Protective bumpers on corners. Drain bag holders on each side. Foldable aluminum siderails with lock. IV pole and 4 holes on each side of frame. Oxygen tank placement with straps, for cylinder max. volume up to 7L.

3. Ergonomics: Designed to fit the physical characteristics of obstetric and gynecological patients, reducing discomfort during transport and facilitating operation according to the habits of medical staff, making it convenient and labor-saving.

(II) Dimensions and Adjustment Parameters

1. Overall Dimensions: Length x Width 2130mm x 860mm, meeting the needs of patients lying flat and for transport space.

2. Height Adjustment:

Adjustment Range: 595mm-900mm

Drive Method: Hydraulic drive system, smooth and seamless adjustment, supporting precise positioning. 1. Backrest Adjustment:

Adjustment Range: 0° (horizontal) - 90° (tilt)

Drive Method: Gas spring auxiliary mechanism, easy to operate, can be locked at any angle.

1. Foot Pedal Adjustment:

Adjustment Range: 0° (horizontal) - 30° (raised)

Drive Method: Manual crank mechanism, smooth adjustment, reliable locking.

1. Body Position Adjustment (Trendelenburg/rev-Trendelenburg):

Adjustment Range: ±17°

Drive Method: Hydraulic drive system, good synchronization, no risk of tilting. (III) Safety Performance Requirements

1. Safe Working Load: 250 kg, meeting the transport needs of patients of different weights, with no risk of frame overload deformation.

2. Locking Mechanism: Equipped with a safe vertical locking mechanism to ensure the stretcher is stable and reliable in a fixed position, without accidental movement.

3. Protective Devices: Equipped with wall protection bumpers at all four corners, made of soft and wear-resistant material, to prevent collisions with walls or equipment during transport, while protecting patient safety.