Coating for electrical components of surgical devices
AssigneeCovidien LP
InventorDavid N. Fowler
Life of this patent
Estimating the term…
Abstract
Surgical devices include adapter assemblies which electrically and mechanically interconnect handles of electromechanical surgical devices to surgical loading units. Electrical components of the surgical devices are coated with a multi-layer conformal coating which permits the devices to be sterilized in an autoclave without damaging the electrical components.
Claims20
A hand-held electromechanical surgical device comprising:
- a housing;
- a loading unit;
- and
- an adapter assembly connecting the housing and the loading unit, the adapter assembly including an electrical assembly coated with a multi-layer conformal coating having at least one inner layer formed of a first material having a first viscosity and at least one outer layer formed of a second material having a second viscosity higher than the first viscosity,
- wherein the multi-layer conformal coating has a thickness from about 350 μm to about 700 μm.
A hand-held electromechanical surgical device comprising:
- a housing;
- a loading unit;
- an adapter assembly connecting the housing and the loading unit, the adapter assembly including an electrical assembly, the electrical assembly including a printed circuit board including a substrate, a plurality of conductive tracks on at least one surface of the substrate, and at least one electrical component connected to at least one conductive track;
- and
- a multi-layer conformal coating covering the plurality of conductive tracks, the at least one electrical component, and the surface of the substrate on which the plurality of conductive tracks and the at least one electrical component are located,
- wherein the multi-layer conformal coating has a thickness from about 350 μm to about 700 μm.
An adapter assembly for connecting a surgical loading unit configured to perform a function with a handle of a surgical device that is configured to actuate the loading unit, the adapter assembly comprising:
- an electrical assembly including a printed circuit board, the printed circuit board including a substrate, a plurality of conductive tracks on at least one surface of the substrate, and at least one electrical component connected to at least one conductive track;
- and
- a multi-layer conformal coating covering the plurality of conductive tracks, the at least one electrical component, and the surface of the substrate on which the plurality of conductive tracks and the at least one electrical component are located,
- wherein the multi-layer conformal coating has a thickness from about 350 μm to about 700 μm.
Dependencies are inferred from the claim text.