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Diamond film surgical instrument and preparation method thereof

A diamond film and surgical instrument technology, applied in the field of medical instruments, can solve the problems of weak adhesion between diamond film and surgical instruments and affect the performance of surgical instruments, and achieve high hardness, excellent wear resistance, and good biocompatibility Effect

Active Publication Date: 2019-09-27
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: In view of the problems in the prior art that the adhesion between the diamond film and the surgical instrument is not strong and affects the performance of the surgical instrument, the present invention provides a diamond film surgical instrument and a method for preparing the diamond film surgical instrument

Method used

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  • Diamond film surgical instrument and preparation method thereof
  • Diamond film surgical instrument and preparation method thereof
  • Diamond film surgical instrument and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Substrate cleaning

[0027] Place the processed instrument body in acetone for 30 minutes, then rinse it with water, place it in a mixed aqueous solution of (15%) hydrochloric acid / (20%) hydrogen peroxide, ultrasonically clean it for 30 minutes, and then wash it with distilled water After cleaning, put it in (8%) potassium hydroxide / (10%) potassium ferricyanide mixed aqueous solution for ultrasonic cleaning for 30 minutes, then wash it with distilled water, dry it, and put it in a dust-free container, device, etc. for standby;

[0028] (2) Magnetron sputtering deposition of diamond film adhesion layer

[0029] Use 99.9% pure graphite as the target material, place the target material and the cleaned substrate, and control the vacuum degree of the system at 8×10 -4 Pa, the argon flow rate is controlled at 30 sccm, the bias voltage is controlled at -120V, after sputtering deposition for 3 hours, stop sputtering and cool for 60 minutes, take out the processed surgical ...

Embodiment 2

[0039] (1) Substrate cleaning

[0040] Place the processed instrument body in acetone for 20 minutes for ultrasonic cleaning, then rinse it with water, place it in (3.5%) hydrochloric acid / (25%) hydrogen peroxide mixed aqueous solution, ultrasonically clean it for 20 minutes, and then wash it with distilled water After cleaning, put it in (1%) potassium hydroxide / (15%) potassium ferricyanide mixed aqueous solution for ultrasonic cleaning for 20 minutes, then wash it with distilled water, dry it, and put it in a dust-free container, device, etc. for standby;

[0041] (2) Deposition of diamond film adhesion layer

[0042] Use 99.9% pure graphite as the target material, place the target material and the cleaned substrate, and control the vacuum degree of the system at 5×10 -4 Pa, the argon flow rate is controlled at 20 sccm, the bias voltage is controlled at -200V, after sputtering deposition for 2 hours, stop sputtering and cool for 45 minutes, take out the processed surgical i...

Embodiment 3

[0051] (1) Substrate cleaning

[0052] Place the processed instrument body in acetone for ultrasonic cleaning for 15 minutes, then rinse it with clean water, place it in (20%) hydrochloric acid / (15%) hydrogen peroxide mixed aqueous solution, ultrasonically clean it for 15 minutes, and then wash it with distilled water After cleaning, put it in (10%) potassium hydroxide / (3%) potassium ferricyanide mixed aqueous solution for ultrasonic cleaning for 15 minutes, then wash it with distilled water, dry it, and put it in a dust-free container, device, etc. for standby;

[0053] (2) Deposition of diamond film adhesion layer

[0054] Use 99.9% pure graphite as the target material, place the target material and the cleaned substrate, and control the vacuum degree of the system at 10×10 -4 Pa, the argon flow rate is controlled at 50 sccm, the bias voltage is controlled at -50V, after sputtering deposition for 8 hours, stop sputtering and cool for 60 minutes, take out the processed surgi...

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Abstract

The invention discloses a diamond film surgical instrument and a preparation method thereof. The surgical instrument comprises an instrument body, a diamond film adhesion layer and a nano-diamond film layer, wherein the diamond film adhesion layer is deposited on the surface of the instrument body, the nano-diamond film layer is deposited on the surface of the adhesion layer, wherein the diamond film adhesion layer is deposited by a magnetron sputtering physical vapor deposition method, and the nano-diamond film layer is deposited by a hot wire chemical vapor deposition method. The preparation method comprises the following four steps of cleaning a base material, depositing the diamond film adhesion layer, carrying out polishing and depositing the nano-diamond film layer. By means of the method for depositing the diamond film on the surface, an adhesion force of the diamond film on the surface of the substrate is remarkably improved by combining the physical vapor deposition method and the hot wire chemical vapor deposition method, and stripping of a film is reduced. The preparation method can be applied to carbon steel, stainless steel, high-speed steel, hard alloy and other metal materials, the performance of the surgical instrument is greatly improved, and meanwhile, the service life of the diamond film surgical instrument is prolonged.

Description

technical field [0001] The invention relates to a carbon-based biocompatible material-reinforced surgical instrument, in particular to a diamond film surgical instrument and a preparation method thereof, belonging to the field of medical instruments. Background technique [0002] Surgical instruments include scalpels, surgical scissors, vascular forceps, surgical forceps, needle forceps, cloth forceps, tissue forceps, sponge forceps, straight (curved) intestinal forceps, right-angle forceps, gastric forceps, round needles, triangular needles ( Skin needles), retractors, lung lobe forceps, auricle forceps, retractors, nerve dissectors, periosteal dissectors, rongeurs, bone saws, etc. Most of these instruments need to be reused, and they will be damaged during repeated disinfection and reuse. Abrasion and corrosion can affect the performance of surgical instruments. [0003] General surgical blades mostly use carbon steel and stainless steel as manufacturing materials, and it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/35C23C14/06C23C14/02C23C14/58C23C16/27
CPCC23C14/021C23C14/0611C23C14/35C23C14/5873C23C16/271
Inventor 戎非邓剑军
Owner SOUTHEAST UNIV
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