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Home / News / 2011 / New bladders from TPU

New bladders from TPU

13.09.2011

Since September’2011 cuffs for blood pressure monitors LD will be completed with bladders LD made of new high-tech material – thermoplastic polyurethane (TPU).
Its physical and mechanical properties of TPU bladder has many advantages as compared to the latex bladder and compared with bladders made of PVC.

In addition, the bladders of TPU have a high resistance to abrasion, resistant to oils, fats and active acids, resistant to bacteria, are extremely durable during piercing and tear and have smaller radii of curvature at the tubes.

Many leaders of the production of medical products have not only made its choice in favor of thermoplastic polyurethanes, but the patented trade name for its material TPU: Elastollan from BASF and Bayer from Desmopan.

Thermoplastic polyurethanes, which appeared in the world market in the early 60s of last century, have already gained strong recognition. Qualitatively, the TPU is a unique material combining only the best properties of rubber and plastics.

Comparison of materials used in the chambers of cuff:

Specification Material
TPU
(Thermoplastic polyurethane)
Latex PVC
(Polyvinylchloride)
Form semitransparent,
very good
black, unattractive grey, ordinary
Durability very good bad very good
Resistance to
deformation
very good good very good
Flexibility great very good normal
Operating temperature range -30..+110 +10…+40 -5..+50
Possibility of recycling easily recycled Exist problems of environmental pollution easily recycled
Allergenicity no problem irritation of some people no problem
Smell no smell sharp specific slight smell
Reliability/life cycle very high/more than 30000 cycles very high/more than 30000 cycles good

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