申请人:Smith & Nephew plc
公开号:EP3574876A1
公开(公告)日:2019-12-04
A curable composition for use in wound care comprising, apportioned between at least one Part A and at least one Part B:
one or more alkenyl-group containing polymers (i) having at least one alkenyl group or moiety per molecule,
one or more SiH-containing polymers (ii) having at least one Si-H unit per molecule; and
a catalyst (iii) for curing by addition of alkenyl-containing polymer (i) to SiH-containing polymer (ii), Part A and Part B independently having viscosity at 23°C in the range 5 - 300 Pa.s, preferably 10 - 100 Pa.s, at a shearing rate of 10 s-1, and when combined in one Part having cure time at 23° C in the range from 0.5 min to 25 min,,
wherein when dispensed into a location about a wound dressing, said wound dressing overlying a wound site and skin thereabout, said dispensing being so as to intimately contact and overlie an edge of said dressing and skin about said edge, the composition cures in contact with said edge and skin at 32° C to an elastomer exhibiting zero or low tack at a time in the range from 0.5 to less than 30 minutes, apparatus for use with said composition comprising dispensing apparatus or wound dressing, a kit comprising the same, and methods of dispensing and curing the same and of using the same in sealing a wound dressing and in treating a wound site of a human in need thereof.
一种用于伤口护理的可固化组合物,包括至少一个 A 部分和至少一个 B 部分:
一种或多种含烯基的聚合物(i),每个分子中至少有一个烯基、
一种或多种含 SiH 的聚合物 (ii),每个分子至少有一个 Si-H 单元;以及
催化剂 (iii),用于将含烯基的聚合物 (i) 添加到含 SiH 的聚合物 (ii) 中进行固化,A 部分和 B 部分在 23°C,剪切速率为 10 s-1 时的粘度范围分别为 5 - 300 Pa.s,最好为 10 - 100 Pa.s,当合并为一个部分时,23°C 固化时间范围为 0.5 分钟至 25 分钟、
其中,当分配到伤口敷料周围的位置时,所述伤口敷料覆盖在伤口部位及其周围的皮肤上,所述分配是为了紧密接触和覆盖所述敷料的边缘和所述边缘周围的皮肤,所述组合物在 32° C 温度下与所述边缘和皮肤接触固化成弹性体,显示出零粘性或低粘性,固化时间在 0.5至小于30分钟的时间内固化为显示零粘性或低粘性的弹性体;与所述组合物一起使用的装置,包括分配装置或伤口敷料;包括上述组合物的套件;以及分配和固化上述组合物的方法,以及使用上述组合物密封伤口敷料和治疗有需要的人的伤口部位的方法。