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1. 发明授权

US4245652A Device and method for preventing foreign substance migration through an opening in living animal tissue 失效
标题翻译：用于防止异物迁移通过活体动物组织中的开口的装置和方法
公开(公告)号：US4245652A
公开(公告)日：1981-01-20
申请号：US949910
申请日：1978-10-10
申请人： Leonard T. Kelly , Esther V. M. Hamel
发明人： Leonard T. Kelly , Esther V. M. Hamel
IPC分类号： A61D13/00 , A61B19/00
CPC分类号： A61D13/00 , Y10S116/34
摘要： A relatively permanent barrier device which serves as a barrier to migration of foreign substances, as for example, bacteria or other disease promoting agents, through an opening in living animal tissue. The barrier device also aids in promoting healing of the animal tissue around the opening. In a preferred embodiment, the opening is designed to receive a percutaneous member or similar member for relatively permanent implant in the animal. Generally, the percutaneous member includes a stem which is insertable through the opening and into the subcutaneous facia of the animal with an enlarged head capable of overlying and engaging a portion of the barrier element. This member includes a fastening element shiftable into engagement with a portion of the animal tissue to retentively hold the member in the animal. The barrier device comprises a flexible and relatively compressible element capable of being sufficiently deformable to fully conform to the surface of the animal with which it is in contact and to fully cover the opening in the animal tissue. Thus, the barrier device is sufficiently resilient so as to always engage the surface of the animal tissue surrounding the opening even during any shifting movement or displacement of the animal tissue. The element will also partially conform to a portion of the percutaneous member which is in contact with the barrier element. The barrier device is generally permanently retained about the opening in said animal tissue by the percutaneous member or other retaining member. The compressible nature of the barrier element also allows it to effectively serve as an indication of tightness with which the percutaneous member is held within the animal and to aid in obviating any problem of necrosis.
摘要翻译：通过活体动物组织中的开口，作为外来物质（例如细菌或其它疾病促进剂）迁移的屏障的相对永久的屏障装置。阻隔装置还有助于促进围绕开口的动物组织的愈合。在优选实施例中，开口被设计成接收用于动物中相对永久植入物的经皮部件或类似部件。通常，经皮部件包括可通过开口插入并进入动物的皮下面的杆，其具有能够覆盖和接合屏障元件的一部分的扩大的头部。该构件包括可移动成与动物组织的一部分接合的紧固元件，以便将构件保持在动物中。阻挡装置包括柔性且相对可压缩的元件，其能够被充分变形以完全符合与其接触的动物的表面并且完全覆盖动物组织中的开口。因此，阻挡装置具有足够的弹性，使得即使在动物组织的任何移动移动或移动期间，也始终接合围绕开口的动物组织的表面。元件还将部分地符合与屏障元件接触的经皮部件的一部分。阻挡装置通常通过经皮构件或其它保持构件永久地保持在所述动物组织中的开口周围。屏障元件的可压缩性质还允许其有效地用作经皮构件保持在动物内的紧密性的指示，并且有助于消除任何坏死的问题。

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