Method for surface treatment and/or production of a medical product, and a medical product
AssigneeAesculap AG
InventorsAndreas Gassner, Lukas Waidelich
Life of this patent
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Abstract
A medical product and a method of surface treatment and/or manufacture of the medical product. The method includes the step of electrochemically etching the medical product. The medical product can include a metal or alloy and have one or more of the following features: a pitting corrosion potential of 100 mV to 1200 mV, a contact angle of 90° to 140°, and a passive layer having a thickness of 1 nm to 10 nm that coats at least sections of the surface of the medical product.
Claims23
A method of surface treating and/or producing a precursor or a component of a surgical instrument, the precursor or the component of the surgical instrument comprising a metal or an alloy, the method comprising the steps of:
- slide finishing a surface of the precursor or the component of the surgical instrument;
- and
- electrochemically etching the precursor or the component of the surgical instrument at a voltage applied to an anode of 1.4 V to 1.7 V and/or at a current density of 1.6 A/dm2 to 2.2 A/dm2,
- wherein the step of electrochemically etching the precursor or the component of the surgical instrument reduces reflection of light from the precursor or the component of the surgical instrument.
A method of surface treating and/or producing a precursor or a component of a surgical instrument, the precursor or the component of the surgical instrument comprising a metal or an alloy, the method comprising the steps of:
- slide finishing a surface of the precursor or the component of the surgical instrument;
- and
- electrochemically etching the precursor or the component of the surgical instrument at a voltage applied to an anode of 1.4 V to 1.7 V and/or at a current density of 1.6 A/dm2 to 2.2 A/dm2,
- wherein the step of electrochemically etching the precursor or the component of the surgical instrument forms a roughened product surface that scatters incident light.
A method of surface treating and/or producing a precursor or a component of a surgical instrument, the precursor or the component of the surgical instrument comprising a metal or an alloy, the method comprising the steps of:
- slide finishing a surface of the precursor or the component of the surgical instrument;
- and
- electrochemically etching the precursor or the component of the surgical instrument at a voltage applied to an anode of 1.4 V to 1.7 V and/or at a current density of 1.6 A/dm2 to 2.2 A/dm2,
- wherein the step of electrochemically etching the precursor or the component of the surgical instrument forms a microstructure comprising open etching pits.
A method of surface treating and/or producing a precursor or a component of a surgical instrument, the precursor or the component of the surgical instrument comprising a metal or an alloy, the method comprising the step of:
- electrochemically etching the precursor or the component of the surgical instrument at a voltage applied to an anode of 1.4 V to 1.7 V and/or at a current density of 1.6 A/dm2 to 2.2 A/dm2,
- wherein the step of electrochemically etching the precursor or the component of the surgical instrument reduces reflection of light from the precursor or the component of the surgical instrument,
- wherein the precursor or the component of the surgical instrument comprises a stainless steel, and
- wherein the stainless steel is a martensitic, corrosion-resistant stainless steel.
Dependencies are inferred from the claim text.