Microsurgical Precision & Ergonomic Support for Ophthalmology, ENT & Plastic Surgery

The Hausted® HSS500 Series Hydraulic Surgical Stool is engineered specifically to meet the exacting physical demands of microsurgeons, ophthalmologists, otolaryngologists (ENT), plastic surgeons, and outpatient surgical teams. Outfitted with an intuitive foot-operated hydraulic lift cylinder, the HSS500 allows surgeons to smoothly and micro-adjust seat elevation hands-free without ever diverting attention from operative microscopes or compromising sterile gowning.

360° Articulating Surgeon Armrests, Dura-Gel® Cushioning & Three-Spindle Base

Designed to alleviate cervical, shoulder, and lumbar strain during lengthy microsurgical procedures:

• 360° Rotating Urethane Armrests: Ergonomically contoured arm pads rotate a full 360° and rest on articulating support arms that swivel 180°, allowing surgeons to dial in tremor-free wrist and forearm stabilization.
• Dual-Density Foam Seat with Dura-Gel® Insert: 3-inch (7.6 cm) sectional comfort pad pairs high-resilience base foam with a medical-grade Dura-Gel® core insert, equalizing ischial pressure points and preventing circulatory numbness during marathon surgeries.
• Hands-Free Foot-Controlled Hydraulics: Color-coded pedals allow rapid, silent vertical travel from 21.5" to 28.5" (54.6 cm to 72.4 cm) without hand contact.
• Adjustable Contoured Backrest: Height-adjustable lumbar support (10.5" to 12.5" / 26.7 cm to 31.8 cm) features up to 20° tilt from vertical to maintain spinal lordosis in forward-leaning operative postures.
• Three-Spindle Base with Dual Tente® Casters: Low-profile footprint glides silently on four 3" (7.6 cm) dual Tente® casters while maintaining exceptional clearance for microscope foot controls and phacoemulsification pedals. A central front-locking mechanism locks the stool rigidly in place at the operating table.
• Thermoformed ABS Protective Hood: Seamless shroud protects the hydraulic cylinder and base mechanism from fluid splashes and wipes clean instantly with hospital disinfectants.

Four Anatomical Seat Profiles to Match Surgeon Preference:

• Saddle Seat (Model HSS500-S): Contoured equestrian saddle (17.0" W x 17.65" D / 43.2 cm x 44.8 cm) tilts the pelvis forward to encourage natural upright spinal posture.
• Wedge Seat (Model HSS500-W): Forward-tapered wedge geometry (13.5" W x 18.0" D / 34.3 cm x 45.7 cm) offers maximum under-thigh clearance for effortless pedal manipulation.
• Water Drop Seat (Model HSS500-WD): Flared teardrop profile (15.75" W x 18.0" D / 40.0 cm x 45.7 cm) provides broad pelvic support with a rounded front edge.
• Reverse Water Drop Seat (Model HSS500-RWD): Inverted teardrop design (15.75" W x 18.0" D / 40.0 cm x 45.7 cm) tailored for clinicians seeking expansive rear thigh and ischial freedom.

Key Features:

• Hands-Free Hydraulic Height Travel: Foot pedals preserve sterile surgical field integrity while adjusting working elevation.
• Multi-Axis Armrest Positioning: 360° arm pad rotation and 180° swing support ensure rock-solid microsurgical forearm bracing.
• Dura-Gel® Comfort Technology: Pressure-relieving core insert minimizes fatigue during prolonged surgical cases.
• Three-Spindle Stool Base: Slim architectural footprint clears surgical pedals and cart wheels with ease.
• Four Dual 3" Tente® Casters: Whisper-quiet rolling mobility paired with positive front-locking stability.
• 300 lb (136.1 kg) Weight Capacity: Heavy-gauge welded tubular steel chassis built for long-term clinical durability.
• Manufacturer Warranty: Backed by a 3-year limited warranty.

Technical Specifications:

• Manufacturer: Hausted by Graham-Field
• Series: HSS500 Series Surgical Stool
• Models Available: HSS500-S (Saddle), HSS500-W (Wedge), HSS500-WD (Water Drop), HSS500-RWD (Reverse Water Drop)
• Weight Capacity: 300 lbs (136.1 kg) evenly distributed
• Seat Height Travel: 21.50" to 28.50" (54.61 cm to 72.39 cm)
• Overall Width: 25.50" (64.77 cm)
• Overall Depth: 32.25" (81.92 cm)
• Base Dimensions: 24.00" W x 28.50" D (60.96 cm x 72.39 cm)
• Seat Pad Thickness: 3.00" (7.62 cm) dual-density foam with Dura-Gel® insert
• Backrest Dimensions: 15.56" W x 8.25" H (39.52 cm x 20.96 cm)
• Backrest Height Travel: 10.50" to 12.50" (26.67 cm to 31.75 cm)
• Backrest Tilt Angle: Up to 20° from vertical
• Armrest Dimensions: 4.75" W x 12.00" L (12.07 cm x 30.48 cm)
• Armrest Height Range: 7.00" to 15.00" (17.78 cm to 38.10 cm)
• Armrest Rotation: 360° pad rotation / 180° swing support movement
• Casters: 4 x 3.0" (7.62 cm) dual Tente® casters with front-locking brake
• Height Actuation: Foot-controlled hydraulic pump mechanism
• Product Weight: 62 lbs (28.1 kg)
• Shipping Weight: 74 lbs (33.6 kg)
• Warranty: 3-year limited warranty