Bio-protective membrane (liquid multifunctional hemostatic material) overview
First, the product name
Second, the main ingredients
Sodium carboxymethyl cellulose, biopolysaccharides, etc.
Third, the introduction
This product is a patented hemostatic product developed by Jiangsu Zhongke Biological Science Research Co., Ltd. (Patent No.: 201310549807.6), which has significance in the field of hemostatic materials in China. This product has a good hemostasis effect on bleeding during surgery, which is degraded to monosaccharide, and the products are CO2 and H2O. At the same time, this product is made of natural plant fiber through biotechnology and controlled oxidation. There is no rejection reaction of animal extract products, and there is no aseptic inflammatory reaction of chemical synthetic products. This product is a suitable substitute for traditional hemostatic materials. Traditional hemostatic materials are generally solid. For some irregular wound hemorrhages, traditional solid hemostatic materials have a hemostatic blind zone and cannot fully contact all bleeding sites. The bio-protective membrane is liquid, which can fully contact and stop bleeding to every part. At the same time, the traditional solid hemostatic material has a single function, and the bio-protective membrane not only stops bleeding, but also has long-acting antibacterial, wound washing, anti-adhesion, and promoting healing functions, effectively reducing the work intensity of medical staff and effectively reducing patient expenses.
Fourth, the applicable department
Open surgery, laparoscopic surgery, thoracoscopic surgery, orthopedic surgery, emergency surgery, burn and plastic surgery.
Fifth, the main role
Wound hemostasis, wound washing, long-lasting antibacterial, anti-tissue adhesion, and promote healing.
Sixth, usage and dosage
Traditional open surgery (including emergency surgery, orthopedics), direct flushing. Generally use 50ml-250ml at a time or adjust the dosage according to the actual situation of the operation.
Minimally invasive surgery (thoracoscopy, laparoscopy, etc.) can be done with a disposable irrigation line or other flushing material to wash with this product. The general dosage is 100ml or it can be decided by the doctor according to the actual situation.
Surgical equipment that requires a large amount of flushing fluid (such as pulse flushing) may use other disposable containers to put multiple bags of the product together for subsequent washing.
Burn plastic surgery can be directly washed with this product or infiltrated with sterile dressing for covering, rubbing and wet application. The dosage is determined by the actual situation.
seventh, special tips
After using this product to stop bleeding and flushing function, as with other washing products, the residual liquid should be sucked out.
The main component of the bio-protective film is sodium carboxymethylcellulose, a local hemostatic material obtained by fiber treatment. Has good tissue compatibility and no rejection.
Ninth, the mechanism of hemostasis of sodium carboxymethyl cellulose
1. The acidic carboxyl group binds to Fe2+ in hemoglobin to form a brown viscous gel block, which blocks the end of the capillary and stops bleeding.
2. In addition, it also has adhesion and aggregation to platelets, which can accelerate coagulation.
Carboxymethylcellulose sodium has been approved by many years of clinical trials (for example, a foreign hemostatic gauze), and the oozing effect on surgical wounds is good. Hemostasis is usually completed in 2-8 minutes.
Tenth, observation of hemostasis effect of bio-protective membrane
Twenty-four healthy adult ICR mice, weighing 20±2g, male and female, were randomly divided into two groups; experimental group; control group
After 10% urethane was intraperitoneally injected with 1g/kg for anesthesia, the tail of the mouse was cut 1cm. When bleeding, the test group used a non-fat gauze with a bio-protective film, and the control group used a small piece of sterile gauze.
At the same time, the timing was started, and the blood of the wound was sucked out by the filter paper in 10 seconds until the bleeding stopped.
The bleeding time was recorded, the data was statistically processed, and the significance test was performed between the groups.
The bleeding time of the test group was 1.5±1.5 (min), the disinfection gauze group was 4.85±1.4, the difference between the two groups was significant (P<0.01); the bleeding time of the test group was shortened by 70%.
2. Conclusion: Bio-protective membrane has obvious hemostasis
Eleventh, antibacterial effect
Carboxymethyl polysaccharide in bio-protective film has strong antibacterial effect, and its antibacterial principle is
First, the adsorption of polysaccharide molecules on the surface of the bacterial membrane changes the selective permeability of the cell membrane, resulting in loss of cytoplasm and separation of the cytoplasmic wall, thereby inhibiting bacteria and bactericidal action.
Second, the polysaccharide molecules penetrate into the cells, adsorb the charged cytoplasm in the cells, flocculate, disrupt the normal physiological activities of the cells, or block the transcription of DNA in the cells to inhibit the proliferation of bacteria.
Clinical comparison between bio-protective membrane and common antibacterial dressings
Number of cases
Treatment group: sterile dressing infiltrated with this product, covered with rubbing, warm applied to the wound
Control group: application of traditional antibacterial dressings
Clinical trials have proven that:
A suitable dressing is a goal that surgeons around the world have pursued for many years. The traditional dressing method keeps the wound as dry as possible, but the early wound drying is not conducive to healing, and the dressing that has been used up to now is likely to cause secondary damage.
The bio-protective film has the dual effects of antibacterial and invisible gauze, which can shorten the healing time and reduce the patient's cost compared with the conventional dressing method.
Twelfth, anti-blocking effect
Postoperative tissue adhesion is the separation of adjacent tissues or organs in the body through abnormal connective tissue after surgery. It is a common phenomenon after clinical operation and is considered to be an inevitable pathological phenomenon in tissue healing. Serosal injury, ischemia, hemorrhage, chemical stimulation, inflammation and foreign body residue caused by surgery are important factors for postoperative adhesion. Postoperative tissue adhesion occurs in almost any body part of the surgical procedure, especially after abdominal and pelvic, tendon and spine surgery. Local adhesions can lead to serious clinical complications, including intestinal obstruction, infertility and chronic pelvic pain, which seriously affect the surgical outcome.
The thirteenth, the mechanism of anti-adhesion of bio-protective membrane
Biopolysaccharide, anti-inflammatory exudation, reduction of collagen aggregation, recovery of mesothelial structure reconstruction, tissue remodeling, enhanced t-PA activity, and maintenance of mesothelial cell polarity repair.
Sodium carboxymethyl cellulose, antibacterial, CH3COOH, oxidized cellulose, complete repair of tissue mucosa, structural function reconstruction, oxidized regenerated cellulose, physical biological properties, hemostasis, t-PA, TGF-β activity enhanced.