Cutting electrode, surgical instrument and method for manufacturing the cutting electrode
AssigneeErbe Elektromedizin GmbH
InventorJohannes Koerner
Life of this patent
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Abstract
A method for manufacturing a cutting electrode for a surgical instrument. The method involves starting with a material blank that is provided with a rated break location. The material blank is dimensioned to allow for separation with forces sufficiently low that they can also be transmitted by the plastic body. The rated break location separates the material blank in a first section serving exclusively for handling and positioning of the material blank in a mold as well as in a second section that self-supportingly projects in a mold hollow space and is overmolded by plastic. After removal, the first section can be easily broken off the cutting electrode. The created breaking edge forms a cutting edge.
Claims19
A method for manufacturing a cutting electrode for a surgical instrument, the method comprising the following steps:
- providing a material blank;
- providing a rated break location that is arranged at the material blank separating it in a first and second section, wherein the first section of the material blank is configured for temporary handling only and comprises positioning holes, wherein only the first section of the material blank includes the positioning holes;
- inserting the material blank provided with the rated break location in a mold that comprises an engraving, holding the first section with contact, and defining a hollow space around the second section, wherein the mold further comprises locating pins adapted to cooperate with the positioning holes of the first section and inserting the material blank in the mold comprises inserting the locating pins into the positioning holes of the first section;
- inserting plastic in the mold for creating a plastic body that encloses only the second section and not the first section of the material blank;
- opening the mold and removing the plastic body with the second section of the material blank held therein, leaving the first section of the material blank free and devoid of any plastic body;
- and
- breaking the first section off of the second section along the rated break location.
A method for manufacturing a cutting electrode for a surgical instrument, the method comprising the following steps:
- providing a material blank comprising a rated break location that separates the material blank a first section and second section, wherein the first section of the material blank is larger than the second section and is configured for temporary handling only;
- inserting the material blank into a mold, the mold defining a hollow space around the second section only of the material blank;
- inserting plastic in the hollow space of the mold thereby creating a plastic body that encloses only the second section of the material blank;
- opening the mold and removing the plastic body with the second section of the material blank held therein, leaving the first section of the material blank free and devoid of any plastic body;
- and
- breaking the first section off of the second section along the rated break location.
Dependencies are inferred from the claim text.