Pressurized product delivery systems
    1.
    发明授权
    Pressurized product delivery systems 失效
    加压产品交付系统

    公开(公告)号:US5510116A

    公开(公告)日:1996-04-23

    申请号:US95611

    申请日:1993-07-21

    CPC分类号: B65D83/60 A61L9/14 F17C11/00

    摘要: An apparatus for dispensing pressurized material is comprised of a container, a polymeric matrix having a network of macropores located within the container, and a propellant that may be reversibly sorbed with the network of macropores so as to desorb as the partial pressure of the propellant within the container decreases. The network of pores is substantially non-swellable upon sorption and desorption of the propellant during filling and use of the dispensing apparatus. The polymeric matrix may comprise aggregates of macroporous polymeric particles in which the particles define a substantially non-collapsible pore network and the aggregates define interstitial spaces between the particles, and the interstitial spaces are substantially larger than the pore network.

    摘要翻译: 用于分配加压材料的装置包括容器,具有位于容器内的大孔网络的聚合物基质和可与大孔网络可逆地吸附的推进剂,以便随着推进剂的分压而解吸 容器减少。 在填充和使用分配装置期间,推进剂的吸附和解吸时孔的网络基本上不溶胀。 聚合物基质可以包括大孔聚合物颗粒的聚集体,其中颗粒限定基本上不可塌陷的孔网络,并且聚集体限定颗粒之间的间隙,并且间隙空间基本上大于孔网络。

    Pressurized product delivery systems
    2.
    发明授权
    Pressurized product delivery systems 失效
    加压产品交付系统

    公开(公告)号:US5256400A

    公开(公告)日:1993-10-26

    申请号:US803298

    申请日:1991-12-04

    CPC分类号: B65D83/60 A61L9/14 F17C11/00

    摘要: An apparatus for dispensing pressurized material is comprised of a container, a polymeric matrix having a network of macropores located within the container, and a propellant that may be reversibly sorbed with the network of macropores so as to desorb as the partial pressure of the propellant within the container decreases. The network of pores is substantially non-swellable upon sorption and desorption of the propellant during filling and use of the dispensing apparatus. The polymeric matrix may comprise aggregates of macroporous polymeric particles in which the particles define a substantially non-collapsible pore network and the aggregates define interstitial spaces between the particles, and the interstitial spaces are substantially larger than the pore network.

    摘要翻译: 用于分配加压材料的装置包括容器,具有位于容器内的大孔网络的聚合物基质和可与大孔网络可逆地吸附的推进剂,以便随着推进剂的分压而解吸 容器减少。 在填充和使用分配装置期间,推进剂的吸附和解吸时孔的网络基本上不溶胀。 聚合物基质可以包括大孔聚合物颗粒的聚集体,其中颗粒限定基本上不可塌陷的孔网络,并且聚集体限定颗粒之间的间隙,并且间隙空间基本上大于孔网络。

    Medical implants of stretch-crystallizable elastomers and methods of
implantation
    4.
    发明授权
    Medical implants of stretch-crystallizable elastomers and methods of implantation 失效
    拉伸结晶弹性体的医疗植入物和植入方法

    公开(公告)号:US6030416A

    公开(公告)日:2000-02-29

    申请号:US23391

    申请日:1998-02-13

    摘要: Reduced trauma medical implants and methods for their use are disclosed wherein at least a portion of the implant is formed of a stretch-crystallizable elastomeric material formulated to exhibit the property of stretch crystallization upon substantial elongation of the implant to form stable, small-incision implant configurations having at least one dimension substantially reduced for insertion through a surgical incision that is small relative to the incision size necessary to implant the unstretched implant. Exemplary embodiments include intraocular implants formed of optically clear, high refractive index stretch-crystallizable silicone elastomers formulated to stretch crystallize at near ambient temperatures upon elongations greater than or equal to 300% and to recover their original configuration immediately upon exposure to body temperature following implantation.

    摘要翻译: 公开了减少创伤的医疗植入物及其使用方法,其中植入物的至少一部分由可拉伸结晶的弹性体材料形成,所述拉伸结晶弹性体材料被配制为在植入物的显着伸长时展现拉伸结晶的性质以形成稳定的小切口植入物 具有至少一个尺寸的构造,其具有相对于植入未拉伸植入物所需的切口尺寸而小于通过手术切口插入的尺寸。 示例性实施方案包括由光学透明的高折射率拉伸结晶的硅氧烷弹性体形成的眼内植入物,其被配制成在伸长率大于或等于300%时在接近环境温度下拉伸结晶,并且在植入后暴露于体温时立即恢复其原始构型。

    Injectable intraocular lens
    5.
    发明授权
    Injectable intraocular lens 有权
    可注射的眼内镜

    公开(公告)号:US06361561B1

    公开(公告)日:2002-03-26

    申请号:US09416995

    申请日:1999-10-13

    IPC分类号: A61F216

    摘要: Polysiloxanes suitable for the preparation of intraocular lenses by a crosslinking reaction, having a specific gravity of greater than about 1.0, a refractive index suitable for restoring the refractive power of the natural crystalline lens and a viscosity suitable for injection through a standard cannula are provided. Moreover, injectable intraocular lens material based on these polysiloxanes and methods of preparing intraocular lenses by direct injection into the capsular bag of the eye are also disclosed.

    摘要翻译: 提供了适用于通过交联反应制备眼内透镜的聚硅氧烷,具有大于约1.0的比重,适于恢复天然晶状体的屈光力的折射率和适于通过标准插管注射的粘度。 此外,还公开了基于这些聚硅氧烷的可注射眼内透镜材料以及通过直接注射到眼睛囊袋中制备眼内透镜的方法。