申请人:Contraline, Inc.
公开号:US10751124B2
公开(公告)日:2020-08-25
Described are methods for reversible occlusion of a body lumen by way of degradation as a result of exposure to one or more stimuli such as light. The methods include administering one or more substance(s) into a body lumen of a subject and forming a stimuli-responsive polymer mass in the body lumen from the one or more substance(s). The mass is sufficient to occlude the body lumen in a manner that prevents transport of at least one material through the body lumen and is susceptible to on-command reversal in the body lumen upon exposure to one or more stimuli. The methods include administering one or more stimuli to a polymer mass in a body lumen for a time and intensity to cause the reverse the polymer mass. The methods are particular useful for applications in which it is desirable to temporarily occlude a body lumen, such as male and female contraception.
所述方法用于通过暴露于一种或多种刺激物(如光)导致的降解来可逆地闭塞体腔。这些方法包括将一种或多种物质注入受试者的体腔,并在体腔中形成由一种或多种物质组成的刺激响应性聚合物块。该聚合物团足以堵塞体腔,从而阻止至少一种物质通过体腔的运输,并且在暴露于一种或多种刺激物时,体腔中的聚合物团易于按指令逆转。这些方法包括向体腔中的聚合物团施加一种或多种刺激,刺激的时间和强度可导致聚合物团逆转。这些方法特别适用于需要暂时堵塞体腔的应用,如男性和女性避孕。