CN113755831A - Anti-corrosion suture needle body protection liquid - Google Patents
Anti-corrosion suture needle body protection liquid Download PDFInfo
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- CN113755831A CN113755831A CN202111054064.6A CN202111054064A CN113755831A CN 113755831 A CN113755831 A CN 113755831A CN 202111054064 A CN202111054064 A CN 202111054064A CN 113755831 A CN113755831 A CN 113755831A
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- suture needle
- solution
- ethanol
- corrosion
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/60—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using alkaline aqueous solutions with pH greater than 8
- C23C22/62—Treatment of iron or alloys based thereon
Abstract
The invention discloses an anticorrosive suture needle body protection solution, which consists of chromium trioxide, ethanol and deionized water; the invention also discloses a preparation method and a passivation process of the passivation solution for the suture needle body, solves the technical problems of poor antirust performance and non-corrosion resistance of the suture needle, greatly improves the antirust performance of the suture needle, prolongs the corrosion resistance time and the storage time, greatly reduces the production and use cost of the suture needle, and is beneficial to popularization and use of metal suture needles.
Description
Technical Field
The invention relates to the technical field of processing of medical appliances, in particular to an anti-corrosion suture needle body protection liquid.
Background
Medical suture needles are very common and frequently used instruments in surgical operations, and are mostly manufactured by drilling or slotting a needle tail which uses stainless steel wires as raw materials. Different from instruments applied to non-living bodies, the medical suture needle is used for suturing human tissues in surgical operations, and has requirements on performance including difficult deformation, high elasticity, high toughness and high hardness of a needle tip so as to have higher sharpness besides the size and the shape. In the medical suture needle standard (YY/T0043-2016) in the Chinese medical industry, the requirements of the medical suture needle performance mainly comprise two aspects of physical performance and corrosion resistance. The suture needle has the requirement of corrosion resistance, and the surface state of the suture needle is not lower than the 5.4 b-level regulation in YY/T0149-2006. However, the suture needle is made of metal materials which are easy to rust, and how to improve the antirust performance and prolong the corrosion resistance time of the suture needle is a hot point problem to be solved in the technical field of processing and treating medical appliances.
Disclosure of Invention
The invention aims to provide an anti-corrosion suture needle body protection solution to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: an anti-corrosion suture needle body protection liquid comprises the following components: chromium trioxide, ethanol and deionized water, wherein the ethanol is an ethanol solution with the concentration of 92% -98%, and the conductivity of the deionized water is less than 30 mus/cm.
Preferably, the protective solution comprises the following components in parts by mass: 7-13 parts of chromium trioxide, 35-45 parts of ethanol and 40-60 parts of deionized water, wherein the ethanol is a 95% ethanol solution.
Preferably, the protective solution comprises the following components in parts by mass: 10 parts of chromium trioxide, 40 parts of ethanol and 50 parts of deionized water.
Preferably, the pH value of the protective solution is 8-10. In particular, the pH value of the protective solution is 9.
The invention provides a preparation method of an anti-corrosion suture needle body protection solution, which comprises the following steps:
(1) preparing materials: weighing chromium trioxide, ethanol and deionized water according to the mass parts for later use;
(2) mixing: adding deionized water, ethanol and chromium trioxide into a plastic container, and mixing and stirring uniformly;
(3) adjusting the pH value: adjusting pH to 8-10 with acetic acid and ammonia water, adjusting pH to lower value with acetic acid, and adjusting pH to upper value with ammonia water.
The invention provides a suture needle passivation process using an anti-corrosion suture needle body protection solution, which comprises the following steps:
(1) preparing liquid: adding deionized water into the protective solution according to the ratio of 1: 4 to prepare passivation solution;
(2) cleaning: soaking and cleaning a stainless steel suture needle with ethanol for 5 minutes or cleaning the suture needle with an alkaline degreasing agent at 60 ℃ for 10 minutes, and then washing the suture needle with deionized water;
(3) passivation: taking out the suture needle, putting the suture needle into the passivation solution, soaking for 5 minutes, taking out the suture needle and putting the suture needle on a stainless steel wire mesh;
(4) and (3) drying: putting into an electrothermal blowing dry box heated to 100 ℃, preserving the heat for 90 minutes at the temperature of 100 ℃, and taking out.
Preferably, the pH value and the conductivity of the passivation solution are frequently tested in the passivation process, the protective solution is added in time, the pH value of the passivation solution is kept between 8 and 8.5, and the conductivity is less than 2000 mu s/cm.
Has the advantages that: the invention has the beneficial effects that: the corrosion-resistant protection liquid for the suture needle body and the suture needle passivation process using the protection liquid greatly improve the rust resistance of the suture needle, prolong the corrosion-resistant time and the storage time, greatly reduce the production and use cost of the suture needle, and are beneficial to popularization and use of metal suture needles.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Example 1
The corrosion-resistant suture needle body protection solution comprises the following components in parts by weight: 7 parts of chromium trioxide, 35 parts of ethanol, 40 parts of deionized water, wherein the ethanol is a 98% ethanol solution, and the conductivity of the deionized water is less than 30 mus/cm.
Example 2
The corrosion-resistant suture needle body protection solution comprises the following components in parts by weight: 10 parts of chromium trioxide, 40 parts of ethanol, 50 parts of deionized water, wherein the ethanol is a 95% ethanol solution, and the conductivity of the deionized water is less than 30 mus/cm.
Example 3
The corrosion-resistant suture needle body protection solution comprises the following components in parts by weight: 13 parts of chromium trioxide, 45 parts of ethanol, 60 parts of deionized water, wherein the ethanol is an ethanol solution with the concentration of 92%, and the conductivity of the deionized water is less than 30 mus/cm.
The preparation method of the corrosion-resistant suture needle body protection solution in the above embodiments 1 to 3 is performed according to the following steps:
(1) preparing materials: weighing chromium trioxide, ethanol and deionized water according to the mass parts for later use;
(2) mixing: adding deionized water, ethanol and chromium trioxide into a plastic container, and mixing and stirring uniformly;
(3) adjusting the pH value: adjusting pH to 8-10 with acetic acid and ammonia water, adjusting pH to lower value with acetic acid, and adjusting pH to upper value with ammonia water.
The suture needle passivation process using the corrosion-resistant suture needle body protection solution comprises the following steps:
(1) preparing liquid: adding deionized water into the protective solution according to the ratio of 1: 4 to prepare passivation solution;
(2) cleaning: soaking and cleaning a stainless steel suture needle with ethanol for 5 minutes or cleaning the suture needle with an alkaline degreasing agent at 60 ℃ for 10 minutes, and then washing the suture needle with deionized water;
(3) passivation: taking out the suture needle, putting the suture needle into the passivation solution, soaking for 5 minutes, taking out the suture needle and putting the suture needle on a stainless steel wire mesh;
(4) and (3) drying: putting into an electrothermal blowing dry box heated to 100 ℃, preserving the heat for 90 minutes at the temperature of 100 ℃, and taking out.
Wherein, the PH value and the conductivity of the passivation solution are frequently tested in the passivation process, the protective solution is added in time, the PH value of the passivation solution is kept between 8 and 8.5, and the conductivity is less than 2000 mu s/cm.
The corrosion-resistant protection liquid for the suture needle body and the suture needle passivation process using the protection liquid greatly improve the rust resistance of the suture needle, prolong the corrosion-resistant time and the storage time, greatly reduce the production and use cost of the suture needle, and are beneficial to popularization and use of metal suture needles.
The embodiments described above are preferred embodiments of the present invention, and not all embodiments. The detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (8)
1. The corrosion-resistant suture needle body protection liquid is characterized by comprising the following components: chromium trioxide, ethanol and deionized water, wherein the ethanol is an ethanol solution with the concentration of 92% -98%, and the conductivity of the deionized water is less than 30 mus/cm.
2. The corrosion-resistant suture needle body protection solution as claimed in claim 1, wherein the corrosion-resistant suture needle body protection solution comprises the following components in parts by mass: 7-13 parts of chromium trioxide, 35-45 parts of ethanol and 40-60 parts of deionized water, wherein the ethanol is a 95% ethanol solution.
3. The corrosion-resistant suture needle body protection solution as claimed in claim 2, wherein the corrosion-resistant suture needle body protection solution comprises the following components in parts by mass: 10 parts of chromium trioxide, 40 parts of ethanol and 50 parts of deionized water.
4. The corrosion-resistant protective solution for suture needle bodies according to claim 1, wherein the pH value of the protective solution is 8 to 10.
5. The corrosion-resistant protective solution for suture needle bodies according to claim 4, wherein the pH value of the protective solution is 9.
6. A preparation method of an anti-corrosion suture needle body protection solution is characterized by comprising the following steps:
(1) preparing materials: weighing chromium trioxide, ethanol and deionized water according to the mass parts for later use;
(2) mixing: adding deionized water, ethanol and chromium trioxide into a plastic container, and mixing and stirring uniformly;
(3) adjusting the pH value: adjusting pH to 8-10 with acetic acid and ammonia water, adjusting pH to lower value with acetic acid, and adjusting pH to upper value with ammonia water.
7. A suture needle passivation process using an anti-corrosion suture needle body protection solution is characterized by comprising the following steps:
(1) preparing liquid: adding deionized water into the protective solution according to the ratio of 1: 4 to prepare passivation solution;
(2) cleaning: soaking and cleaning a stainless steel suture needle with ethanol for 5 minutes or cleaning the suture needle with an alkaline degreasing agent at 60 ℃ for 10 minutes, and then washing the suture needle with deionized water;
(3) passivation: taking out the suture needle, putting the suture needle into the passivation solution, soaking for 5 minutes, taking out the suture needle and putting the suture needle on a stainless steel wire mesh;
(4) and (3) drying: putting into an electrothermal blowing dry box heated to 100 ℃, preserving the heat for 90 minutes at the temperature of 100 ℃, and taking out.
8. A process as claimed in claim 7, wherein the passivation solution is added to the passivation solution at a pH of 8-8.5 and a conductivity of less than 2000 μ s/cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111054064.6A CN113755831A (en) | 2021-09-04 | 2021-09-04 | Anti-corrosion suture needle body protection liquid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111054064.6A CN113755831A (en) | 2021-09-04 | 2021-09-04 | Anti-corrosion suture needle body protection liquid |
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| CN113755831A true CN113755831A (en) | 2021-12-07 |
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| CN202111054064.6A Pending CN113755831A (en) | 2021-09-04 | 2021-09-04 | Anti-corrosion suture needle body protection liquid |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07228978A (en) * | 1994-02-17 | 1995-08-29 | Nippon Parkerizing Co Ltd | Production of galvannealed steel sheet composite material having excellent bare corrosion resistance and coatability |
| CN102383121A (en) * | 2011-11-11 | 2012-03-21 | 江苏华程工业制管股份有限公司 | Rust-proof treatment method for steel parts |
| CN105018936A (en) * | 2015-08-10 | 2015-11-04 | 苏州科淼新材料有限公司 | Steel wire polishing agent and preparation method thereof |
-
2021
- 2021-09-04 CN CN202111054064.6A patent/CN113755831A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07228978A (en) * | 1994-02-17 | 1995-08-29 | Nippon Parkerizing Co Ltd | Production of galvannealed steel sheet composite material having excellent bare corrosion resistance and coatability |
| CN102383121A (en) * | 2011-11-11 | 2012-03-21 | 江苏华程工业制管股份有限公司 | Rust-proof treatment method for steel parts |
| CN105018936A (en) * | 2015-08-10 | 2015-11-04 | 苏州科淼新材料有限公司 | Steel wire polishing agent and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 胡传炘: "《表面处理技术手册》", 北京工业大学出版社, pages: 156 - 336 * |
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