Medical apparatus with lubricity and manufacturing method of same

A medical device and wetting technology, which is applied in lubricating medical devices and their manufacturing fields, can solve problems such as stripping or elution into physiological saline solution, reduced metal adhesion, and unsuitability for medical devices to achieve safety Effect of increase, lubricity maintenance, possibility reduction

Inactive Publication Date: 2012-10-17
TYCO HEALTHCARE GRP LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the use of these films to provide lubricity may not be suitable for medical devices requiring peel-resistant lubricity
[0006] Also, for base materials made of metal, including guide wires, when used for a long period of time or used many times, the adhesion of the film to the metal is greatly reduced, and thus the lubricating layer or film may be peeled off or eluted into a physiological saline solution Moderate, and therefore lubricity is reduced

Method used

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  • Medical apparatus with lubricity and manufacturing method of same

Examples

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Embodiment 1

[0057] First, a solvent blend containing xylene and 1-butanol in a 2:1 weight ratio was prepared. Next, bisphenol A type epoxy resin prepolymer (product name: EPICLON 1010-70X (manufactured by DIC), epoxy equivalent, 450-500 (g / eq), viscosity: X-Z1 (25°C, Gardener) , non-volatile component 69-71 (weight %)) and polyamidoamine type curing agent (product name: LUCKAMIDE N-153-IM-165 (manufactured by DIC), active hydrogen equivalent, 472 (g / eq), viscosity : Z2-Z4 (25°C, Gardener), non-volatile components 64-66 (wt%)) were added to the solvent blend at a weight ratio of 1.5:1 and dissolved and diluted with 7 times the total amount To prepare mixed solution for interlayer coating.

[0058] A base material of a medical device made of metal was dipped in the mixed solution for interlayer film coating and then immediately drawn out and heated in an oven at 80° C. for 3 hours. A bisphenol A type epoxy resin was thus prepared, and an intermediate film made of the bisphenol A type epox...

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Abstract

The present disclosure provides a medical instrument with a coating that provides excellent lubricity when wet. The medical instrument possesses a coating including a wet lubricating film with high peel durability and anti-eluting properties. In embodiments, an intermediate film made of bisphenol A type epoxy resin is coated on a base material of a medical instrument made of metal, and a wet lubricant coating produced by alkaline processing of a polymer alloy containing a methyl vinyl ether maleic anhydride copolymer and a polyether block amide is then applied thereto. Methods for making these medical instruments are also provided.

Description

technical field [0001] The present invention relates to lubricated medical devices and methods of making the same. According to the invention, a lubricious film is provided on at least a portion of the surface of the medical device, wherein the film is lubricious when wet. In embodiments, the instrument may be made of metal, and may be a guide wire or the like. Background technique [0002] Some medical devices, such as guide wires and needles used to aid in the insertion of catheters, are inserted and left in blood vessels, airways, urinary tracts, and other body cavities and tissues. When these medical devices are inserted, the surface of the medical device should slide easily so as to avoid damage to tissue membranes and cause inflammation, as well as to relieve any pain experienced by the patient being treated. [0003] Therefore, to provide lubricity to some medical devices, it can be provided by applying silicone oil, glycerin, etc. to the surface as an innovation to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L31/10A61L31/14A61L31/06A61L31/04
CPCA61L31/022A61M25/09A61L31/082A61L2400/10A61M2025/09133A61M2025/09108C08L63/00A61L29/02A61L29/08A61M5/158
Inventor 天野健一村松美希
Owner TYCO HEALTHCARE GRP LP
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