What is PVA?

AMI•Cell™ PVA Material

Advanced Meditech’s specially formulated AMI•Cell™ PVA materials have these advantages:

Ultra fine pore materials minimize adhesion
Continuous open pore structure results in superior softness and greater patient comfort
Smaller compressed sizes ease insertion and allow optimal positioning within the body
Extremely fast wicking
Highly absorbent
Cost effective
Biocompatible

Depending on the characteristics desired, Advanced Meditech International, Inc. uses both particle replacement technology and “whipped air” technology to form the pores in our PVA foam. For particle replacement PVA products, we use a starch granule which is then processed out, leaving very consistent, evenly-sized pores.

For some other uses, we use "whipped air" technology to form PVA pores. For this process, we essentially use air alone to form the pores, resulting in somewhat less even pore size. However, whipped air process has its advantages. It is possible to produce much larger pore size PVA than with particle replacement technology. The other advantage is that PVA made without particles does not require these particles to be processed out.

For medical-grade PVA made using particle replacement, final processing is very important. Any residues left on the PVA following processing can hydrolyze and otherwise interact with tissues and fluids within the body. Advanced Meditech’s final processing of the PVA material results in a an extremely low level of acetylization. This means essentially that there are fewer residues on AMI•Cell™product so the risk of pva residues interacting with body tissues and fluids is reduced.

Advanced Meditech’s production facilities are ISO certified. We are constantly looking for ways to improve our products and processes. Our efforts at continuous improvement are a reflection of Advanced Meditech’s commitment to quality and our clients.

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