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Liquid and method for chemically plating chemical-carried Ni-Co-W film on Ni-Ti alloy

A composite electroless plating and electroless plating technology, which is applied in the direction of liquid chemical plating, metal material coating technology, medical equipment, etc., can solve the problems of no literature reports, etc.

Inactive Publication Date: 2005-10-12
TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, although there are many techniques and patents related to electroless nickel plating, the research on composite electroless plating of drug-loaded nickel-cobalt-tungsten alloy thin films, especially on the surface of nickel-titanium alloys, has attracted much attention at home and abroad. None reported in the literature

Method used

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  • Liquid and method for chemically plating chemical-carried Ni-Co-W film on Ni-Ti alloy
  • Liquid and method for chemically plating chemical-carried Ni-Co-W film on Ni-Ti alloy
  • Liquid and method for chemically plating chemical-carried Ni-Co-W film on Ni-Ti alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The preparation of 1# composite electroless plating solution, its preparation steps are:

[0033] 1. Weigh sodium citrate (Na 3 C 6 h 5 o 2 )26.0g and ammonium sulfate ((NH 4 ) 2 SO 4 ) 40.0g was added into a beaker, and dissolved in 300ml of distilled water to obtain a solution;

[0034] 2. Weigh nickel sulfate (NiSO 4 ·6H 2 O) 5.0g, cobalt sulfate (CoSO 4 ·6H 2 O) 23.0g, sodium tungstate (Na 2 WO 4 ) 0.3g was added to the beaker in turn, and dissolved in 400ml of distilled water to obtain a solution;

[0035] 3. Add the solution obtained in step 2 into the solution obtained in step 1 under stirring to obtain a mixed solution;

[0036] 4. Weigh 1000mg of the drug fluorouracil and add it into the container, and dissolve it with 20ml of distilled water to obtain a fluorouracil solution;

[0037] 5. Slowly add the fluorouracil solution obtained in step 4 into the mixed solution obtained in step 3 under stirring to obtain a mixed solution;

[0038] 6. Sodium...

Embodiment 2

[0042] The preparation of 2# composite electroless plating solution, its preparation steps are:

[0043] 1. Weigh sodium citrate (Na 3 C 6 h5 o 2 )29.0g and ammonium sulfate ((NH 4 ) 2 SO 4 ) 58.0g was added into a beaker, and dissolved in 300ml of distilled water to obtain a solution;

[0044] 2. Weigh nickel sulfate (NiSO 4 ·6H 2 O) 5.0g, cobalt sulfate (CoSO 4 ·6H 2 O) 25.0g, sodium tungstate (Na 2 WO 4 ) 0.8g was added to the beaker in turn, and dissolved in 400ml of distilled water to obtain a solution;

[0045] 3. Add the solution obtained in step 2 into the solution obtained in step 1 under stirring to obtain a mixed solution;

[0046] 4. Weigh 100mg of the drug cytarabine and add it into the container, and dissolve it with 20ml of distilled water to obtain a solution containing cytarabine;

[0047] 5. Slowly add the cytarabine-containing solution obtained in step 4 into the mixed solution obtained in step 3 under stirring to obtain a mixed solution;

[00...

Embodiment 3

[0052] The preparation of 3# composite electroless plating solution, its preparation steps are:

[0053] 1. Weigh sodium citrate (Na 3 C 6 h 5 o 2 )36.0g and ammonium sulfate ((NH 4 ) 2 SO 4 ) 70.0g was added into a beaker, and dissolved in 300ml of distilled water to obtain a solution;

[0054] 2. Weigh nickel sulfate (NiSO 4 ·6H 2 O) 13.0g, cobalt sulfate (CoSO 4 ·6H 2 O) 30.0g, sodium tungstate (Na 2 WO 4 ) 3.3g was added to the beaker in turn, and dissolved in 400ml of distilled water to obtain a solution;

[0055] 3. Add the solution obtained in step 2 into the solution obtained in step 1 under stirring to obtain a mixed solution;

[0056] 4. Weigh 100 mg of the drug mitomycin and add it to the container, and dissolve it with 20 ml of distilled water to obtain a mitomycin-containing solution;

[0057] 5. Slowly add the mitomycin-containing solution obtained in step 4 into the mixed solution obtained in step 3 under stirring to obtain a mixed solution;

[00...

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Abstract

A process of preparing coating agent of Ni-Ti alloy coved by Ni-Co-Wo membrane. It contains nickelous sulfat,5-13g / L, cobaltous sulfate,23-30 g / L, natrium wolframicum,0.3-3.3 g / L, sodium hypophosphite,17-25g / L, natrium citricum, 26-36g / L, (NH4)2SO4, 40-70g / L, medicine, 100-1000mg / L g / L. pH is 8-10.5. Wash the surface of of Ni-Ti alloy with alkali and acid. Then put it into coating agent to obtain metal membrane.

Description

technical field [0001] The invention relates to a treatment method for plating a drug-loaded alloy film on the surface of a nickel-titanium alloy, in particular to a composite chemical plating solution and a process method for compound chemically plating a drug-loaded nickel-cobalt-tungsten alloy film on the surface of a nickel-titanium alloy. Background technique [0002] Nickel-titanium alloy is a functional alloy with superelasticity and shape memory functions. It is widely used in aerospace, chemical, medical and other fields. For example, medical stents used clinically to treat stenosis in the human body are made of nickel-titanium shape memory alloys. These stents have achieved great success in the clinical treatment of pipeline stenosis, but unfortunately they only have a physical therapy effect and cannot implement chemical drug therapy. Clinically, it is found that the tumor cells will continue to grow and pass through the stent, or grow along the stent to both end...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/04A61L27/00A61M29/04A61M31/00C23C18/48
Inventor 程海斌官建国张清杰邹声泉李占飞许帅周泽祥吴华利陶剑青
Owner TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH
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