08 Jul 2021

Wound tissue type and debridement method ?

Eschar vs Eschar Eschar (Eschar) should not be confused with scab (Scab). The eschar is the necrotic tissue of a full-thickness wound. You may see eschars in burns, gangrenous ulcers, fungal infections, necrotizing fasciitis, spotted fever, and skin anthracnose. Current diagnostic and treatment guidelines recommend that stable and complete (dry, well-attached, intact without erythema or undulation) heel eschar should not be removed. The blood flow of the tissue under the eschar is poor, and the wound is prone to infection. As a natural barrier, eschar can prevent bacteria from entering and infection. If the eschar becomes unstable (wet, oozing, loose, sticky, swollen, red), it should be debrided and removed in accordance with institutional guidelines. When blood or exudate on the surface of the wound solidifies to form a crust/skin, it is called a scab. Scab can be seen in superficial or partial cortical wounds. Scab is a brown hard crust formed on the surface of a skin wound within 24 hours. The role of scab is to prevent further dehydration of the injured skin, prevent infection and prevent the entry of external pollutants. Before the skin underneath is completely repaired, the scab will be firmly attached to the local area. After the repair is completed, the scab will naturally fall off. Debridement methods should be effective

 08 Jul 2021

Contraindications for debridement ?

Current treatment guidelines recommend that stable, intact heel eschar (dry, firmly attached, intact, no erythema or fluctuations) should not be removed. As a natural barrier, eschar can protect wounds from bacterial contamination. If the eschar becomes unstable (wet, oozing, loose attachment, swelling, redness), it should be debrided according to institutional guidelines. For autoimmune and pyoderma gangrenosum wounds, when there is a clear boundary of activity, debridement with instruments will make the wound worse. This is because debridement stimulates an inflammatory response. When receiving immunosuppressive therapy and there is no active boundary, surgical debridement can be accepted. Expanding tissue necrosis and calcium hypersensitivity wounds with violet borders should not be surgically debrided. Before debridement, the patient must complete sodium thiosulfate treatment to confirm that the area of ​​necrotic tissue has stopped expanding and the violet border has disappeared. Patient education can improve outcomes. The primary purpose of patient education is to reduce anxiety, manage expectations, and improve the effectiveness of treatment. Explain to the patient the procedure and any local analgesics or anesthetics that need to be used in the debridement. Anesthetics such as lidocaine (with/without epinephrine) injections, topical gels, sprays and

 08 Jul 2021

What does medical debridement mean? ?

Debridement is a surgical method to remove foreign bodies from open wounds, remove necrotic, inactivated or heavily contaminated tissues, and suture the wound to minimize contamination or even become a clean wound to achieve primary healing and benefit the injured site Surgical methods for the restoration of function and form. Then, after debridement, anti-inflammatory and infection prevention treatments are actively carried out. The meaning of debridement Generally speaking, debridement is a local cleaning method to improve the proportion of inflammation and bacteria in the local wound. Debridement is a surgical method. It is a surgical method that removes foreign bodies from open wounds, excises necrotic, inactivated or heavily contaminated tissues, and sews the wounds to minimize pollution or even become clean wounds to achieve primary healing, which is beneficial to the recovery of the function and form of the injured part.

 08 Jul 2021

Basic knowledge: the important role of debridement in wound healing ?

Debridement is used to remove necrotic tissue or foreign bodies from the wound. There are many methods for debridement, and different methods have different definitions and indications. Some methods may still be disapproved under certain circumstances. Surgical and conservative sharps debridement are considered invasive methods due to the use of surgical instruments. Medical staff should follow their respective (doctors, nurses, specialist nurses, doctor assistants, etc.) practice scope and institution regulations to conduct clinical practice. Debridement methods: There are currently 5 main non-selective and selective debridement methods, but many factors determine which method is best for your patient. Remember BEAMS, the acronym for 5 methods of debridement. Biological debridement (Biological): Use maggots (larvae of Lucilia sericata) cultivated in a sterile environment to remove necrotic tissue, which can swallow and digest necrotic tissue and pathogenic microorganisms; Enzymatic: Enzymatic topical application The preparation liquefies the necrotic tissue. Enzymes can degrade the inactivated tissue in the wound matrix. The combination of antibacterial agents and collagenase will reduce the effect of enzymatic debridement. This method can

 08 Jul 2021

Manufacturing method of medical surgical water knife ?

Waterjet is a cold cutting device that uses high-pressure water jets. It was first applied to the industrial field for cutting metal plates, ore, etc., and it was not really used in clinical operations until 1990. The pressure of the medical water knife is much lower than that of the industrial water knife, but its working principle is similar to that of the

 08 Jul 2021

What kind of medical equipment is a medical water knife? ?

Using water as a knife is not the peerless magic in martial arts novels, but a medical device that can be used for surgery-a medical water knife. We know that high-pressure water guns can wash away dirt and high-pressure water jets can cut steel. But in medical operations, how can water be used as a knife? What kind of medical equipment is a medical water kn

 08 Jul 2021

Introduction of New Technology of Medical Waterjet ?

On April 3, 2015, our department (Department of Urology, Aerospace Center Hospital) took the lead in completing the first laparoscopic water knife minimally invasive partial nephrectomy and transurethral water knife bladder tumor resection in Beijing.The new medical waterjet technology uses high-pressure water to cut tissues, which has the advantages of less...

 21 May 2021

The magic water knife on the operating table ?

Have you ever seen surgery with a water knife? A few days ago, the reporter witnessed this magical scene with his own eyes in the surgical operating room of Huashan Hospital affiliated to Fudan University.The patient who underwent the operation was a female patient from Anhui. According to the director of surgery, Professor Cai Duan, the patient had a huge h...

 21 May 2021

Why debridement? ?

First of all, in order to assess the wound correctly, we must be able to see the tissue structure of the wound bed clearly. Dead or inactivated tissue not only hinders the wound healing process, but also increases the risk of infection and sepsis. Dead tissue or foreign matter is a good culture medium for bacteria. The goal of debridement is to "recover...

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