Anti-adhesion medical composite film

A composite film and anti-adhesion technology, which is applied in the field of plastic composite films, can solve the problems of film adhesion and failure to meet medical requirements, and achieve good anti-adhesion, good overall appearance, and good transparency

Active Publication Date: 2014-05-28
CHANGZHOU SHUJIE PLASTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of film does have a lubricating effect between the films before it is sterilized, but once it is sterilized by ethylene oxide gas, there is also a phenomenon that the folded or stacked films themselves stick to each other at the overlapping places. Cannot meet medical requirements

Method used

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  • Anti-adhesion medical composite film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (Example 1, anti-adhesion medical film)

[0029] The anti-adhesion medical composite film of this embodiment is made by the co-extrusion method, and is made up of the first surface layer film, the inner layer film and the second surface layer film that adhere together successively; The first surface layer film and the second surface layer film have excellent Excellent lubricity, anti-adhesion and anti-wear properties, and the inner film has anti-penetration properties. The total thickness of the anti-adhesion medical composite film is 0.04mm, wherein the thickness of the first surface film and the second surface film are the same, both are 0.01mm, and the thickness of the inner film is 0.02mm.

[0030] The composition of the first surface film and the second surface film are the same, consisting of the following components in parts by weight: 57.15 parts of low-density polyethylene (LDPE), 42 parts of linear low-density polyethylene (LLDPE), silicon dioxide (SiO 2 ) 0....

Embodiment 2

[0054] (Example 2, anti-adhesion medical film)

[0055] The rest of this embodiment is the same as embodiment 1, the difference is:

[0056]Most of the low-density polyethylene in the first surface film and the second surface film is derived from the low-density polyethylene resin particles produced by Sinopec Yangzi Petrochemical Co., Ltd., which is 2420H. In the low-density polyethylene resin particles Does not contain slip agent, its index is: density 0.924g / cm 3 , a melting temperature of 115° C., and a melt flow rate of 2 g / 10 minutes.

[0057] The linear low-density polyethylene in the first surface layer film and the second surface layer film is derived from the linear low-density polyethylene resin particles sold by Exxon Mobil Corporation as 1002YB, and the linear low-density polyethylene resin particles do not contain Contains slippery agent, its index is: density 0.918g / cm 3 , crystallinity 65% ​​to 75%, melting temperature 115 ℃, melt flow rate 2 g / 10 minutes. ...

Embodiment 3

[0066] (Example 3, anti-adhesion medical film)

[0067] The rest of this embodiment is the same as embodiment 2, the difference is:

[0068] The particle size of silicon dioxide in the first surface layer film and the second surface layer film is 11-13 μm, and the slippery agent contained therein is oleic acid amide.

[0069] The smooth agent and the small part of low-density polyethylene in the first surface film and the second surface film are derived from the granular smooth masterbatch whose product code is PE-2 sold by Changzhou Shuangcheng Masterbatch Company. The smooth masterbatch containing slip agent is composed of 10wt% oleic acid amide and 90wt% low-density polyethylene, and the oleic acid amide is uniformly dispersed in the smooth masterbatch. The bulk density of the smooth masterbatch is 0.51~0.61g / cm 3 , the melting temperature is 115°C, and the melt flow rate is 4.0~5.0 g / 10 minutes.

[0070] All the other preparation methods of the anti-adhesion medical com...

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Abstract

The invention discloses an anti-adhesion medical composite film which is composed of a first surface layer, a second surface layer and an inner layer, wherein the inner layer is attached onto the first surface layer, and the second surface layer is attached onto the inner layer; the first surface layer and second surface layer respectively comprise the following components in parts by weight: 49-61 parts of low-density polyethylene, 38-51 parts of linear low-density polyethylene, 0.5-0.7 part of parts of and 0.04-0.06 part of lubricant; and the inner layer comprises the following components in parts by weight: 20-70 parts of low-density polyethylene and 30-80 parts of medium / high-density polyethylene. The anti-adhesion medical composite film disclosed by the invention has the advantages of stable friction factor and favorable anti-adhesion property; the medical product produced by the film does not have the adhesion phenomenon after being folded, sterilized by oxirane and the like and unfolded; and the unfolded anti-adhesion medical composite film has good transparency and favorable integral appearance effect.

Description

technical field [0001] The invention relates to a plastic composite film, in particular to a medical composite film with anti-adhesion function. Background technique [0002] Hospital articles are divided into high-risk, medium-risk, and low-risk categories according to the degree of harm to the human body after contamination by articles. The high-risk articles refer to medical equipment and articles that will cause serious harm after being contaminated by microorganisms, such as surgical instruments and supplies. , Infusion and blood transfusion equipment, etc. The principle of the hospital is that all high-risk items must be sterilized by high-efficiency disinfection methods to make their sterilization index reach 10. -6 (Even if the survival probability of microorganisms is less than 10 -6 ). Disinfectants commonly used in high-efficiency disinfection methods include glutaraldehyde, formaldehyde, peracetic acid, hydrogen peroxide, ethylene oxide, and ozone. Among them,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/08B32B27/18B29C49/04B29C47/92B29C48/92
Inventor 徐莺
Owner CHANGZHOU SHUJIE PLASTIC CO LTD
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