No Abstract Available.
Latex Hypersensitivity* ; Latex* ; Operating Rooms*

Stomach ; Rubber ; Latex

The purpose of this study was to investigate and compare the biomechanical properties of orthodontic rubber elastic materials. Latex bands, nylon-covered elastic threads and polyurethane-based elastic modules, delivering 205 +/- 10 grams force at 30mm stretching state were selected and stored separately in 3 environments-air (22+/-3degreesC), distilled water (37+/-1degreesC), or natural saliva (37+/-1degreesC). And, the amount of remaining force and permanent elongation of each sample were measured on Instron at interval of 1 hour, 6 hours, 12 hours, 24 hours, 1 week, and 2 weeks. So the data derived were analyzed statistically. The results were as follows: 1. Force decay and permanent elongation of all materials increased with time lapsed; elastic module, latex band and nylon-covered elastic thread in that order of the amount of force decay; elastic module, elastic thread, latex band in that order of the amount of permanent elongation. 2. Among environmental conditions, force decay and permanent elongation in natural saliva, most increased, and those in air, least increased. 3. There was a negative correlation between force decay and permanent elongation. 4. Force decay and permanent elongation were most affected by the material itself, time and environments in that order. 5. After 24 hours in saliva, the percentage of remaining force in elastic module was 51.9% (107.37grams); in latex band, 83.2%(172.62grams); in elastic thread, 85.0%(179.25grams). After 2 weeks in saliva, the percentage of remaining force in elastic module was 42.9%(88.75grams); in latex band, 74.5%(154.50grams); in elastic thread, 77.6%(163.75grams).
Latex ; Rubber* ; Saliva ; Water

Foreign body ingestion is a common clinical problem. Foreign bodies are generally swallowed accidentally and most pass out spontaneously. However, if a sharp object is not eliminated early, it can penetrate the bowel wall and cause severe complications. Endoscopic techniques for removing sharp foreign bodies safely include methods using a protector hood and overtube. An overtube is uncomfortable and has limitations in its diameter. We introduced a method using a latex glove, which is easily available, comfortable, and has no limitations in diameter. In addition, two endoscopes were used to reduce the risk of complications, and the large sharp object was easily wrapped with the latex glove. We report a case of a sharp and large foreign body being removed endoscopically using a latex glove and two endoscopes without any complications.
Eating ; Endoscopes* ; Foreign Bodies* ; Latex*

Most of swallowed foreign bodies pass spontaneously. However, sharp objects are usually lodged in the proximal esophagus and cause aspiration, bleeding, obstruction, and perforation. Therefore, prompt retrieval of lodged foreign bodies are necessary. The safe extraction of sharp foreign bodies using endoscopic technique is difficult because sharp objects carry a significant risk of mucosal injury and perforation. Endoscopic techniques for retrieval of foreign body include methods using protector hood and overtube. The former is not available, the later is uncomfortable and its diameter is the limiting factor. Method using a latex glove is available, comfortable, and its diameter is not limited. The thickness of the glove is thinner than protector hood, but we think that a latex glove would seem to be a effective alternative. We report a case in which a sharp foreign body was endoscopically removed using a latex glove without complication.
Esophagus ; Foreign Bodies* ; Hemorrhage ; Latex*

According to the situation of 34 batches of natural rubber latex condoms tested by our center in 2018, the unqualified items in the product inspection items and the exploratory research results of D4 and D5 content in silicone oil lubricants are analyzed. We make recommendations on product technical requirements or standards to strengthen the quality supervision of products.
Condoms/standards* ; Latex ; Silicone Oils

No abstract available.
Latex* ; Polystyrenes* ; Potassium Channels* ; Potassium* ; Vasospasm, Intracranial*

Designed a contrast pinhole detect testing including water leak method, electrical method and improved electrical method, and concluded that the water leak method is most suitable as the arbitration method, and recommended the national standard add the requirement on electrolytic liquid filling volume of electrical test in order to improve detection accuracy.
Condoms ; Latex ; Materials Testing ; methods ; Rubber

It was found that several problems exist in the implementation of GB 7544-2004 in the aspects of requirements of natural latex materials and safety of rubber condom products, microorganisms to be controlled and the packaging and label. As a result, the suggestions were put forward.
Condoms ; standards ; Latex ; Materials Testing ; standards ; Rubber

Background: Only strains of V cholerae 01 that produce cholera toxin have been associated with epidemics and pandemics in the past; therefore, production of cholera toxin has become an important marker for identifying isolates with the potential to cause epidemics. The Reversed Passive Latex Agglutination test (RPLA) is a semi-quantitative determination of CT or LT in culture fluid. \r\n', u'Objective: To determine the cholera toxin by RPLA in order to evaluate the severity of the epidemic and find an interventional solution.\r\n', u'Subjects and methods: The technique of RPLA enables soluble antigen such as bacterial toxins to be detected in an agglutination assay. A total of 44 strains of V. cholerae 01 were tested for the production of the cholera toxin by RPLA.\r\n', u' Results and conclusion: The concentration of cholera toxin was determined from strains isolated in 2007 much higher than that from the strains isolated in 2004. These results can explain the severe cholera endemic in 2007 in comparison with the endemic in 2004. The RPLA test is a simple and reliable method for determining cholera toxin and suitable for epidemiologic studies on cholera. \r\n', u'
Reversed passive latex agglutination ; cholera toxin