Medical Design Briefs - October 2021 - 4

Hydrocolloid
Innovation:
Past, Present&Future
H
ydrocolloid dressings revolutionized
wound care when
they debuted in the late
1960s. Recent hydrocolloid
innovations, especially integration
of additives, continue to improve
patient care. This article discusses
the history of this game-changing medical
material and the latest hydrocolloid
developments and applications.
Hydrocolloids: Background and
Brief History
What is a hydrocolloid? From a
purely linguistic perspective,
hydro refers to water, and a colloid
is:
* " a homogeneous noncrystalline
substance consisting
of large molecules
or ultramicroscopic
particles of one substance
dispersed
through a second
substance. "
* or more simply, " a substance of gelatinous
consistency. " 1
In the wound care realm, hydrocolloid
typically refers to a category of pressuresensitive
adhesives (PSA). Hydrocolloids
are used in wound dressings and other
medical device components, such as the
skin-facing portion of an ostomy flange.
Hydrocolloid medical devices are usually
made of a rubberbased
PSA
containing mixed particles that allow the
medical device to absorb fluid. These particles
might be pectin or another biocompatible,
absorbent ingredient.
During absorption, the particles in the
hydrocolloid form a soft, moist gel. By
doing so, hydrocolloids help to create a
moist wound healing environment. This
soft, moist surface also means hydrocolloid
dressings can be removed with minimal
pain or wound bed disturbance.2
Hydrocolloid material use in healthcare
traces back to 1937. That year,
Dental Digest published an article
by American dentist Andy
Sears about a new
hydrocolloid
Hydrocolloid
adhesives are
known for their ability to
absorb wound exudate and
create a moist healing environment.
(Image courtesy of
Avery Dennison Medical)
4
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Medical Design Briefs - October 2021

Table of Contents for the Digital Edition of Medical Design Briefs - October 2021

Medical Design Briefs - October 2021 - Intro
Medical Design Briefs - October 2021 - Sponsor
Medical Design Briefs - October 2021 - Cov1a
Medical Design Briefs - October 2021 - Cov1b
Medical Design Briefs - October 2021 - Cov1
Medical Design Briefs - October 2021 - Cov2
Medical Design Briefs - October 2021 - 1
Medical Design Briefs - October 2021 - 2
Medical Design Briefs - October 2021 - 3
Medical Design Briefs - October 2021 - 4
Medical Design Briefs - October 2021 - 5
Medical Design Briefs - October 2021 - 6
Medical Design Briefs - October 2021 - 7
Medical Design Briefs - October 2021 - 8
Medical Design Briefs - October 2021 - 9
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Medical Design Briefs - October 2021 - Cov3
Medical Design Briefs - October 2021 - Cov4
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