Castor oil-based aqueous lubricant used for medical instruments and preparation method thereof

A water-based lubricant, castor oil-based technology, applied in the field of castor oil-based water-based lubricants for medical devices and its preparation, can solve the problems of poor stability, pollution, and easy accumulation of organic silicon lubricants in the ecological environment, and achieve stability And the effect of excellent dilution stability, extended service life and easy degradation

Inactive Publication Date: 2012-06-20
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, silicone-based lubricants have poor stability, mineral oil-based lubricants have poor biodegradability, are ea

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] industrial castor oil oil phase 5% Span 60 / Tween 60 (8 / 2) emulsifier system 5% cetearyl alcohol co-emulsifier 1% Sodium dodecyl sulfate co-emulsifier 0.5% Defoamer Defoamer 0.05% water to 100%

[0033] The industrial castor oil has an iodine value of 82, a saponification value of 176, and an acid value of 4.

[0034] Preparation:

[0035] Heat the emulsifier system and water to 50°C under stirring conditions to obtain an emulsifier aqueous solution; mix industrial castor oil, co-emulsifier and defoamer with the emulsifier aqueous solution and then ultrasonically emulsify. The ultrasonic power is 100W and the ultrasonic interval is 1s. , Ultrasonic time is 100min, cooled to room temperature.

Embodiment 2

[0037] industrial castor oil oil phase 15% Span 60 / Tween 60 (8 / 2) emulsifier system 7.5% cetearyl alcohol co-emulsifier 2% Sodium dodecyl sulfate co-emulsifier 1% Defoamer Defoamer 0.5% water to 100%

[0038] The industrial castor oil has an iodine value of 90, a saponification value of 186, and an acid value of 4.

[0039] Preparation:

[0040] Heat the emulsifier system and water to 90°C under stirring conditions to obtain an aqueous emulsifier solution; mix industrial castor oil, co-emulsifiers and defoamers with the aqueous emulsifier solution and then ultrasonically emulsify. The ultrasonic power is 2000W and the ultrasonic interval is 1s. , ultrasonic time is 5min, cooled to room temperature.

Embodiment 3

[0042] industrial castor oil oil phase 10% Span 80 / Tween 60 (3 / 7) emulsifier system 20% Dodecanol co-emulsifier 2% Sodium dodecyl sulfate co-emulsifier 3% Defoamer Defoamer 0.8% water to 100%

[0043] The industrial castor oil has an iodine value of 86, a saponification value of 180, and an acid value of 4.

[0044] Preparation:

[0045] Heat the emulsifier system and water to 75°C under stirring conditions to obtain an aqueous emulsifier solution; mix industrial castor oil, co-emulsifiers and defoamers with the aqueous emulsifier solution and then ultrasonically emulsify. The ultrasonic power is 100W and the ultrasonic interval is 15s. , Ultrasonic time is 60min, cooled to room temperature.

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PUM

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Abstract

The invention relates to a castor oil-based aqueous lubricant used for medical instruments and a preparation method of the Castor oil-based aqueous lubricant, and solves the problems in the prior art that the lubricants have poor biodegradability, cause severe pollution and can not be recycled. The invention adopts a technical scheme as follows: the castor oil-based aqueous lubricant used for medical instruments is composed of the following components: 5 to 20% of industrial-grade castor oil, 5 to 30% of an emulsifier system, 0.5 to 5% of co-emulsifiers, 0.05 to 1% of antifoaming agents and the balance of water. The preparation method comprises the following steps of: heating the emulsifier system and water up to 50 DEG C to 90 DEG C under stirring conditions to obtain an emulsifier water solution; mixing industrial-grade castor oil, co-emulsifiers and antifoaming agents with the emulsifier water solution; ultrasonically emulsifying; and cooling down to room temperature to obtain the final product. The lubricant has good stability and dilution stability and no toxicity, is suitable for both manual operation and operation using an automatic cleaning machine, and can well meet the lubrication requirements of medical instruments.

Description

technical field [0001] The invention relates to the technical field of a water-based lubricant for medical equipment, in particular to a castor oil-based water-based lubricant for medical equipment and a preparation method thereof. Background technique [0002] In hospitals around the world, the problem of medical device joint failure increases hospital operating costs and surgical risks. In order to improve the quality of medical devices after cleaning, prolong the service life of the devices, and reduce the potential risks during surgery, general medical devices are treated with lubricants after cleaning. [0003] In the medical industry, water-based lubricants are used for surface lubrication of catheters, cannulae, and puncture needles. For example, U.S. Patents US 6046143 and US 5,688,747 respectively use silicone as a lubricating component to prepare a water-based lubricating oil for the surface treatment of medical devices such as catheters. Chinese patent CN 1016136...

Claims

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Application Information

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IPC IPC(8): C10M173/00
Inventor 鲍艳吴成兰马建中
Owner SHAANXI UNIV OF SCI & TECH
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