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Method for preparing Cr/CrN/Cu-TiN film on surface of stainless steel operation instrument

A surgical instrument, stainless steel technology, applied in the field of thin film preparation on the surface of stainless steel instruments, can solve the problems of unclean cleaning, incomplete disinfection and sterilization, etc., and achieve the effect of cost saving

Inactive Publication Date: 2014-12-10
JIAMUSI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing surgical instruments have serious adhesion to blood and other body fluids, the postoperative cleaning is not clean, resulting in incomplete disinfection and sterilization, and the problems of cross-infection of patients during surgery, and provide a stainless steel surgical instrument surface Method for preparing Cr / CrN / Cu-TiN film

Method used

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  • Method for preparing Cr/CrN/Cu-TiN film on surface of stainless steel operation instrument
  • Method for preparing Cr/CrN/Cu-TiN film on surface of stainless steel operation instrument
  • Method for preparing Cr/CrN/Cu-TiN film on surface of stainless steel operation instrument

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specific Embodiment approach 1

[0019] Embodiment 1: This embodiment is a method for preparing a Cr / CrN / Cu-TiN film on the surface of a stainless steel surgical instrument, specifically as follows:

[0020] 1. Ultrasonic cleaning: First, use sodium hydroxide aqueous solution with a concentration of 40g / L as the cleaning agent at an ultrasonic frequency of 40kHz to ultrasonically clean the stainless steel surgical instruments for 10 minutes to 20 minutes, and then use alcohol with a mass fraction of ≥99.7% as the cleaning agent in the ultrasonic cleaning Ultrasonic cleaning at a frequency of 40kHz for 10min to 20min, and finally using distilled water as a cleaning agent at an ultrasonic frequency of 40kHz for 5min to 15min to obtain cleaned stainless steel surgical instruments;

[0021] 2. Chemical etching: immerse the cleaned stainless steel surgical instrument in the etching solution, etch for 5 minutes to 15 minutes, and then wash it with distilled water until the black substance on the surface of the stain...

specific Embodiment approach 2

[0027] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the stainless steel surgical instrument described in step 1 is a scalpel handle, surgical scissors, surgical forceps or surgical forceps. Others are the same as the first embodiment.

specific Embodiment approach 3

[0028] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that in step one, at first, the sodium hydroxide aqueous solution with a concentration of 40g / L is used as a cleaning agent at an ultrasonic frequency of 40kHz to perform ultrasonication on stainless steel surgical instruments Wash for 15 minutes, then use alcohol with mass fraction ≥ 99.7% as cleaning agent, ultrasonically clean at an ultrasonic frequency of 40 kHz for 15 minutes, and finally use distilled water as a cleaning agent to ultrasonically clean at an ultrasonic frequency of 40 kHz for 10 minutes to obtain cleaned stainless steel surgical instruments. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a method for preparing a Cr / CrN / Cu-TiN film on the surface of a stainless steel operation instrument, and relates to a method for preparing a film on the surface of a stainless steel instrument, aiming at solving the problem that patients suffer from cross infection in operation as body fluid, such as blood largely adhered to a conventional operation instrument, so that the operation instrument cannot be completely cleaned, sterilized and disinfected. The method comprises the following steps: I, performing ultrasonic washing; II, performing chemical etching; III, performing Ar ion sputter cleaning; IV, performing Cr ion sputter cleaning; V, depositing a Cr layer; VI, depositing a CrN layer; VII, depositing a Cu-TiN layer, that is, the preparation for the Cr / CrN / Cu-TiN film is completed on the surface of the stainless steel operation instrument. The method has the advantages that the thickness of the Cr / CrN / Cu-TiN film is greatly smaller than that of a conventional Cr or Ni film, so that the cost is saved, and the anti-adhesion and antibacterial properties are improved. The method is mainly used for preparing Cr / CrN / Cu-TiN films on the surfaces of the stainless steel operation instruments.

Description

technical field [0001] The invention relates to a method for preparing a thin film on the surface of a stainless steel instrument. Background technique [0002] Under the situation of the rapid development of contemporary medical science and diagnosis and treatment technology, with the development of difficult operations such as human organ transplantation, heart surgery, artificial joint replacement, microsurgery, and minimally invasive surgery, the cleaning, disinfection and Sterilization requirements are getting higher and higher. [0003] At present, the surgical instruments in clinical use are all stainless steel and titanium alloy instruments plated with Ni or Cr, which have no antibacterial and anti-adhesion properties. They must be cleaned, disinfected and sterilized after surgery, and incomplete cleaning of surgical instruments will affect disinfection and sterilization. Bacteria effect, so it is easy to cause cross infection during the operation. At present, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/02C23C14/35C23C14/16C23C14/06
Inventor 李慕勤吴俊杰廖平吴明忠张德秋高庆杰马天钰
Owner JIAMUSI UNIVERSITY
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