negative pressure


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negative pressure

[′neg·əd·iv ′presh·ər]
(physics)
A way of expressing vacuum; a pressure less than atmospheric or the standard 760 mmHg (101,325 pascals).

negative pressure

A pressure less than atmospheric.
References in periodicals archive ?
"In this randomized controlled trial that did not achieve full anticipated enrollment, we did not observe a decrease in superficial surgical site infections after cesarean delivery in obese women with the use of prophylactic negative pressure wound therapy," the authors write.
The whole sample population was divided into two equal and comparable groups of 54 patients, based on the willingness for undergoing topical negative pressure dressing.
The objective of the study was to assess the role of gauze-based negative pressure wound therapy on split thickness skin graft in large and complex wounds.
One way to resolve the negative pressure issue is to raise the plant static pressure.
Progressive withdrawal is allowed freely by the mechanism but once withdrawn to the desired negative volume, it is held at this negative pressure by the ratchet mechanism.
This method employs negative pressure via a special closed wound dressing by intermittent or continuous application to the wound.6 This negative pressure launches a biological effect that subsequently leads to improved healing.7 Complex wound treatment is difficult.9 Initially, NPWT was identified as an adjunctive therapy to help heal difficult open wounds and many clinical trials have cited the success of this method in open wound treatment.
- MediPoint: Negative Pressure Wound Therapy - Global Analysis and Market Forecasts
The primary benefit of negative pressure wound therapy (NPWT) is the acceleration of wound healing.
The report also provides company shares and distribution shares data for each of these market categories, and global corporate-level profiles of the key market participants, pipeline products, and news and deals related to the Negative Pressure Wound Therapy market wherever available.
Adjustable air handler creates overall negative pressure to protect the external environment.
A German trauma surgeon first described the benefits of exposing a wound to negative pressure for prolonged periods of time: Fleischmann et al published their findings in 1993 (Fleischmann et al 1993), after successfully making use of this technique in 15 patients with compound fractures.

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