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Scar patch and preparation method thereof

A technology of scar and silicone gel, applied in the field of biomedical materials and medical devices

Pending Publication Date: 2020-11-10
INST OF MEDICAL DEVICES (SUZHOU) SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no product that can provide an effective solution to scar hyperplasia induced by external forces such as tension.
None of the existing commercially available products can play any effective role in the hyperplasia induced by external force

Method used

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  • Scar patch and preparation method thereof
  • Scar patch and preparation method thereof

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preparation example Construction

[0043] Such as figure 2 As shown, another aspect of the present invention provides a method for preparing a scar patch S200, which specifically includes the following steps S210~S250:

[0044] S210, providing a support layer.

[0045] Specifically, the support layer can be selected from an adhesive elastomer gel that is non-irritating to the skin and has good adhesion, which is equivalent to a cushion protection layer or a protective film. For example, the support layer is made of silicone film, rubber film, elastic polyester film and any one of polyurethane films. Its thickness ranges from 1 μm to 200 μm. Of course, for those skilled in the art, support layers of other thicknesses can also be provided according to actual needs.

[0046] S220, forming a first silicone gel layer on the support layer.

[0047] Specifically, evenly cover the silicone gel on a support layer (for example, a thin silicone mold) with a thickness ranging from 1 μm to 200 μm, and let it stand for 1...

Embodiment 1

[0065] The preparation method of scar patch in this example, comprises the steps:

[0066] S1. Provide a support layer, prepare an A4-sized silicone film with a thickness of 50 μm as the support layer.

[0067] S2. Forming a first silicone gel layer on the support layer.

[0068] First, prepare the adhesive elastomer silicone gel material first. Specifically, at room temperature, weigh the two components of the silicone gel SILPURAN®2117 A / B in a transparent plastic cup at a mass ratio of 1:1. gram, fully stirred evenly, and after standing for 3 minutes, put it into a desiccator connected with a vacuum pump to carry out vacuum defoaming operation. When the vacuum value reaches 0.06MPa, maintain the defoaming treatment for 5 minutes to 10 minutes. After the defoaming is completed, the prepared silicone gel must be used within 3 hours, otherwise the viscosity will increase after vulcanization or even curing will affect the actual operation.

[0069] Second, evenly coat the prep...

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Abstract

The invention provides a scar patch and a preparation method thereof, and belongs to biomedical materials and medical instruments. The scar patch comprises a supporting layer, a first silica gel layer, a mechanical color changing layer, a second silica gel layer and an isolation layer which are sequentially arranged in a stacked manner. The mechanical color changing layer can generate different color changes when the scar patch is subjected to different external forces. According to the scar patch, the magnitude of external force applied to the skin can be directly judged according to the color changes of the mechanical color changing layer, then early warning is conducted on the stress of the scar, scar proliferation is prevented from being accelerated due to external force induction in the recovery period of a patient, and the defect that an existing scar patch cannot cope with scar proliferation induced by external force is overcome; and the scar patch is endowed with the function of deforming color changing of the mechanical color changing layer under stress, so that the the scar patch not only has the warning and prevention function of deformation color changing of an elasticphotonic crystal film under stress and stretching, but also has the treatment effect of a common scar patch, the double effects are brought into full play, and the effective inhibition and rapid treatment effects on scar hyperplasia are achieved.

Description

technical field [0001] The invention belongs to the technical field of biomedical materials and medical devices, and in particular relates to a scar patch and a preparation method of the scar patch. Background technique [0002] The treatment of hypertrophic scars caused by cuts, punctures, scratches, burns, injections, bites or various types of surgical healing has always been a major problem in the medical field. For the growth mechanism of hypertrophic scar, the medical field has not yet had a unified explanation. At present, there are still many problems that need to be continuously explored and solved by medical scientists, in order to completely eliminate the medical problem of scar hyperplasia. A large number of scientific researches and clinical medical practices have proved that medical silicone gel dressings are effective in the treatment of scar hyperplasia. Therefore, it has gradually become the first choice for the treatment of hypertrophic scars, which is a g...

Claims

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Application Information

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IPC IPC(8): A61K9/70A61B5/11G01L1/24A61P17/02
CPCA61K9/70A61B5/1109G01L1/247A61P17/02
Inventor 汪丰黄晨昱顾忠泽张文冬葛健军
Owner INST OF MEDICAL DEVICES (SUZHOU) SOUTHEAST UNIV