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Benefits of using NPWT

Wound Healing is a complex and dynamic process. It involves 3 to 4 distinctive phases in order to replace devitalised and missing cellular structures and tissue layers.

Wound healing is a normal biological process of human body.

But, healing gets delayed when wounds become infected with harmful microorganisms. If left untreated, there is also a risk of the infection spreading to other body parts.

Negative Pressure Wound Therapy (NPWT) is an effective procedure for the treatment of wounds of various aetiologies and is not less than any gold standard technique for the management of complex non-healing wounds.

It involves applying a continued sub-atmospheric pressure at wound bed site, to increase blood flow to the area and withdraw excess fluid from the wound to promote wound healing.

NPWT system consists of a dressing and a vacuum source. The various components of dressing include an open pore foam, a transparent adhesive dressing, a tubing to connect the dressing with a vacuum pump producing negative pressure and a canister to collect the exudates. The technique is used an adjunct to surgical debridement to treat tissue defects around open fractures and chronic, contaminated wounds.

Do You Know? “The advent of modern NPWT systems is attributed to Argentas and Morykwas, who developed several prototypes to facilitate wound healing by distributing suction across wounds to help draw the skin edges together- Annals of Plastic Surgery”.

Mechanism of Action:
NPWT facilitates wound healing at both macroscopic & microscopic levels. 

– The primary mechanism of action includes wound edges contraction called “tissue macro-deformation” powered by the suction, distributed through the dressing foam.

– Secondly, NPWT results in “micro-deformation” by promoting cell division and proliferation, growth factor production and angiogenesis.

-Next important step includes the removal of oedematous fluid and exudates from the extracellular space, thereby removing inflammatory chemicals and cytokines.

– A warm and moist environment wards off wound desiccation and enhances the formation of granulation tissue.

Clinical Indications:
NPWT therapy has been studied across all medical and surgical specialties and as of Jan.2014, the technique has been mentioned in over 861 peer-reviewed journals. Its potential has been demonstrated in various contaminated, difficult to treat wounds covering both acute and chronic types.

There have been increasing evidences on NPWT’s ability to aid the closure of various acute wounds such as Traumatic & Surgical Wounds and Subacute & dehisced wounds. NPWT technique is found to be valuable in management of various chronic wounds such as Pressure Ulcers, Diabetic Foot Ulcers (DFU), Arterial and Venous Leg Ulcers. Applying NPWT to a newly laid down skin graft is gaining importance with a number of studies showing an improvement in graft incorporation by using a pressure ranging between -50 to -80 mmHg. 

The benefits of using NPWT over conventional dressings have been documented. 

– The therapy offers a non-invasive treatment with one of the major advantage being reduction in number of dressing changes, which in turn improves compliance as the patient suffers less pain and inconvenience when compared with conventional dressings. 

– The negative pressure removes excess fluid allowing for enhanced circulation and disposal of cellular waste, thereby reducing the risk of bacterial contamination.

-NPWT eases the formation of a local infection-free healing tissue in a short period of time. Thereby, preventing the need for complex surgical procedures for the final coverage of important structures. 

-A faster reduction in the wound size and formation of granulation tissue with rapid wound closure has been observed as compared to conventional dressings.

-The speedy wound management with NPWT enables transfer from hospital to lower-cost health care setting. Apart from these its saving on the dressing & nursing costs too.

We are a leading manufacturers and marketers of NPWT devices and consumables in India. Our product with brand name “VEL NeXT” is CE certified being audited by SGS Belgium NV, Notified Body 1639. VEL NeXT is approved and licensed by “Central Drugs Standard Control Organization (CDSCO), Ministry of Health, Government of India.

The various consumables are produced and packed in a controlled environment following stringent quality measures.

Visit our website www.dattmedi.com to know more.

Visit www.dattmedi.com for more infomation.
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Recent Blogs
Infection Control in Wound Care

The Role of Antimicrobial Dressings in Infection Prevention and Wound Healing

In wound care, infection prevention involves proactive measures to avoid contamination, while infection control refers to the steps taken after an infection has occurred—to contain its spread and reduce complications.

Understanding this distinction is vital, particularly when dealing with diabetic foot ulcers, surgical wounds, or chronic ulcers like those from varicose veins. These wounds, once infected, require more than just hygiene and topical care—they demand targeted intervention.

Why Infection Prevention is Critical in Wound Care

In high-risk patients (e.g., diabetics, post-operative individuals, or those with vascular issues), a wound infection can:

  • Impair tissue regeneration can significantly slow down the body’s natural healing process. 
  • Trigger inflammation beyond the wound site
  • Lead to sepsis or systemic failure
  • Delay healing indefinitely without the right approach

Once bacteria attach to the wound surface and multiply, they secrete an Extracurricular Polymeric Substance (EPS) over the wound bed in the form of a patchy layer called BIOFILM. This biofilm is not only resistant to the host’s immune system but also to various basic antimicrobials. This is why even proper hygiene may not suffice creating a need for advanced infection control measures. 

Common Signs of Infection Include:

  • Increased redness or warmth
  • Foul odor or purulent discharge
  • Delayed granulation
  • Pain out of proportion to wound size
  • Systemic symptoms like fever or fatigue

The Role of Antimicrobial Dressing

Not all antimicrobial dressings work the same way. Selection should depend on the type of wound, degree of infection, and underlying comorbidities.

AgentMechanism of ActionIdeal Use Cases
Nano-crystalline silverDisrupts bacterial DNA and cell wallsChronic wounds, surgical sites, burn care
IodineBroad-spectrum bactericidal effectInfected diabetic foot ulcers, contaminated wounds
PHMBDisrupts membrane integrity of microbesSuperficial infected wounds
VelvetKills microbes, hinders replication. Promotes angiogenesis & cell proliferationManagement of partial & full thickness wounds such as DFU, VLU, Necrotising Fasciitis, Burns or even other traumatic or surgical infected wounds

Using the wrong dressing can delay healing or exacerbate infection. Selection must be guided by wound assessment, not just product availability.

Best Practices for Infection Prevention:

  • Sterile Cleansing: Use prescribed solutions like saline, not harsh agents.
  • Hygiene Compliance: Strict hand hygiene and PPE protocols for caregivers.
  • Moisture Balance: Avoid dry wound beds or maceration.

Infection Control (Post-Infection Onset):

  • Debridement if needed to remove necrotic tissue or biofilm
  • Antimicrobial Dressings selected as per exudate level and infection type
  • Systemic antibiotics for deep or spreading infections
  • Regular monitoring to track changes in wound condition

Different Wounds Demand Different Protocols

  • A clean surgical wound may require simple antimicrobial protection.
  • A diabetic foot ulcer with infection may require systemic antibiotics, debridement, and layered dressing strategy.
  • A venous ulcer may need antimicrobial compression therapy.
Avoid a one-size-fits-all approach—treatment must align with wound pathology.

Don’t overlook:

  • Nutritional Support: Protein, Vitamin C, and Zinc for immune function and tissue repair
  • Glycemic Control: Especially crucial in diabetic patients
  • Patient Education: Empower caregivers with infection warning signs and dressing techniques

Wound care is both a science and a strategy. While infection prevention is essential, being prepared for infection control—with the right knowledge, products, and protocols—can make the difference between recovery and chronicity.

From nano-crystalline silver dressings to advanced wound care materials, our range is engineered for outcomes that matter. To Explore our full range of antimicrobial dressings: Click Here

Wound Care Myths Debunked

Unveiling the Truth: Debunking Common Wound Care Myths

When it comes to wound care, there’s a lot of advice floating around. Some of it is helpful, while other bits are more myth than fact. Let’s clear up some common wound care myths and get to the truth behind them.

Myth 1: Wounds Need Sunlight to Heal

Fact: While sunshine is great for your mood, it’s not beneficial for healing wounds. In fact, direct sunlight can actually cause burns and damage the tissues that are trying to heal. So, to promote proper healing, keep wounds covered and out of direct sunlight.
Source : Cleveland Clinic

Myth 2: Wound Itching Means Healing

Fact: A bit of itching around a wound can be a sign that it’s healing, but it’s not always the case. Itching might also indicate an allergic reaction or infection. Monitor any itching along with other symptoms to ensure the healing process is on track.
Source : Advanced Tissue

Myth 3: Hydrogen Peroxide is the Best Cleaner for Wounds

Fact: Using hydrogen peroxide to clean wounds can actually slow down the healing process by damaging healthy cells. Instead, stick to gentle cleansing with mild soap and water to keep things clean without causing additional damage.
Source : University of Utah Healthcare & Atlantic Foot & Ankle Specialists

Myth 4: Keep Wounds Dry for Faster Healing

Fact: While it’s essential to keep wounds clean, keeping them too dry can actually slow down the healing process. Wounds heal better in a moist environment, so using dressings to maintain the right level of moisture can speed up recovery.
Source : LifeMD™

Understanding the Importance of Proper Wound Care

Wound care isn’t just about cleaning and covering a wound; it’s about understanding the underlying processes that help your body repair itself. Following evidence-based practices ensures that wounds heal properly and complications are minimized. Here’s why these practices are crucial:

  • Preventing Infections: Proper wound care minimizes the risk of infection, which can complicate healing and lead to more serious health issues.
  • Promoting Faster Healing: By maintaining a moist environment and protecting the wound, you accelerate the natural healing process.

When to Seek Professional Help

While minor cuts and scrapes can often be treated at home, certain situations warrant professional medical attention:

  • Deep or Large Wounds: Significant injuries that penetrate deep into the skin or are extensive in size require medical assessment.
  • Signs of Infection: Redness, swelling, increased pain, warmth around the wound, or pus are signs of infection that need medical intervention.
  • Delayed Healing: If a wound does not show signs of healing within a reasonable period, it’s important to consult a healthcare provider.

In a nutshell, taking care of wounds isn’t complicated, but it’s important to distinguish fact from fiction. By following evidence-based practices and seeking professional advice when needed, you can ensure your wounds heal properly and without unnecessary complications.