Equipment Flashcards
(34 cards)
WC Back Height
for self-propeller w/ good trunk control, 2” below inf angle of scapula. –self-propeller w/ poor trunk control, 2” below scapular spine. –Poor UE strength, poor trunk control, standard (typically 16.5”).
WC Width
widest point, usu hips plus 1” (18”).
WC Depth:
buttock to popliteal fossa, minus 2” (16”).
WC Height:
: Popliteal fossa to floor, plus 2” (19”).
WC width
18” width corresponds to 27” WC width. (doorways 32” to be ADA).
WC Weight
: standard ~43-50 lbs. Light weight 250 lbs) 45-60 lbs
Wheel size
standard 24”, Hemi-chair 20”
Frame
folding heavier, less durable, more energy to propel. Rigid frame more durable/energy efficient, more difficult to transport
Axel
Pos placement for poor trunk control, amputees, reclining/post tilt but increases turning radius, rolling resistance and difficulty doing wheelies. Anterior placement-decreases rolling resistance, improves maneuverability, increases risk of tipping backwards.
-Wheels
mag wheels (molded plastic ) heavier, durable. Spooked preferred in most sports chairs, more maintanence, less safe for those fingers may get caught.
-Tires
Pneumatic (air-filled innertube) comfortable on uneven terrain, susceptible to flats, higher resistance at high speeds. Solid rubber-easier propulsion, low maintenance
Camber
standard 7® (range 3-9). ↑->↓ turning radius, improves side-to-side and forward stability, ↓ rolling reistance at high speeds, protects hands during sports. Increases overall width->difficulty in tight spaces. Also ↑ tire/wheel bearing wear, ↓ rear stability.
Handrims
small diameter (sports) ↑ distance/stroke, require greater force. Pegged (“quad knobs”) ↑ ease of use for tetraplegics and users w/ hand deformities, ↑ risk trauma during attemts to stop
Casters
small (≤5”), narrow good for smooth, level surfaces, less likely shimmy. Large (≥6”), wide better roughter, out door terrain but ↑ rolling resistance on smooth surfaces, more likely shimmy
-Cushions
: Foam-lightweight/inexpensive, not washable/dissipate heat poorly. Gel-(Jay, Jay-2)-firm gel emulsion in non-breathable plastic-good postural stability/durable/easy maintain, clean/dissipate heat, expensive, heavy, contouring can interfere with transfers. Air-filled villous cushions- (ROHO) multiple balloon-like air cells that assure max shin contact, best pressure relief, good for pressure ulcer prevention/healing/lightweight/heat dissipation/easy clean/ easy transport, expensive, poor providing postural stability. Cells need consistent maintenance.
Recline/tilt-in-space
for pts lack ability adequate pressure relief or orthostatic instability. Often for backups for pts w/ powerchairs. Increased size and weight. Reclining may ↑spasms and shear forces during reclining. Tilt-in-space-pressure relief w/o shear, ↓likelihood triggering spasm during tilt. May get backflow of urine w/ indwelling catheter.
Hemi-chair
Lower seat height, ~ 2”, foot rest removed allow neurologically intact foot to propel and steer.
Lower Limb amputee
rear axel moved posterior ~2”, compensate rearward displacement of pt’s center of gravity. Turning radius increased.
One arm drive
for unilateral amputee/hemiplegic. Both hand rims on one side, turning both propels, turning one turns. Width and weight increased. Good strength and coordination required.
Standing WC
frame allows passively assume standing position providing pressure relief and weight bearing (may reduce osteoporosis), promote improved bowel/bladder fx
Powered WC:
-Indications
limitations not compatible w/ manual wc propulsion (C1-4, many C5-6 or severe weakness), endurance deficits (severe COPD, cardiac failure) and must conserve energy other functions.
Powered WC User requirements
at least 1 reproducible movement to access control system, adequate cognitive and visuoperceptual fxn, proper judgment and motivation. Ideally trial given to see if pt can learn to control WC.
Powered WC Contraindications
failing to meet user requirements; involuntary motions or inattention might result in inadvertent activation of controls
Powered scooter indications
pts who can ambulate and transfer but poor endurance or poor tolerance for prolonged manual WC use 2/t arthropathy or other disease
