Medical instrument containing an adhesive seal with filler

摘要

A method for filling a hollow space in an autoclavable medical instrument with an adhesive containing a filler has the steps of providing an adhesive with a low viscosity allowing the adhesive to enter into a hollow space in a medical instrument, providing a filler of solid particles within said low viscosity adhesive, density of said solid particles differ from a density of said low viscosity adhesive, filling that hollow space in said medical instrument with that low viscosity adhesive containing said solid particles, allowing said particles a period of time for crowding together into a minimum of space, and curing said adhesive after said period of time.

主权项

1. An autoclavable medical endoscopic instrument, having a hollow space therein, said hollow space being filled with a composite containing a cured adhesive having distributed solid metal particles therein, wherein, at least in an area of said hollow space, said solid metal particles being packed together into a most dense particle concentration, which is possible due to its geometry, without changes of an original size and geometry of said solid metal particles, wherein said cured adhesive fills free spaces between said packed solid metal particles and wherein a material of said solid metal particles is chosen such that said material has a thermal expansion property substantially similar to a thermal expansion property of structural metal elements defining said hollow space.