Skin expander, skin expanding system and manufacturing method of skin expander

A skin expansion, cube technology, applied in the field of medical devices, can solve a variety of complications, the skin expander cannot accurately control the expansion pressure, the survival rate of the expanded flap is low, etc., to reduce complications and facilitate accurate control. , the effect of improving the survival rate

Inactive Publication Date: 2019-07-16
上海懿熹医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a skin expander, which can solve the problem that the skin expander provided by the existing technology cannot accurately control the expansion pressure, and various complications are easily caused during the expansion process, resulting in a low survival rate of the expanded skin flap.

Method used

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  • Skin expander, skin expanding system and manufacturing method of skin expander
  • Skin expander, skin expanding system and manufacturing method of skin expander
  • Skin expander, skin expanding system and manufacturing method of skin expander

Examples

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Embodiment 1

[0028] Such as Figure 1-4 As shown, it is a schematic structural diagram of a skin expander provided by an embodiment of the present invention, including an expansion bag 1, a catheter 2, an injection valve 3 and a pressure sensor 4;

[0029] The catheter 2 is connected to the expansion bag 1, and is used for injecting expansion medium into the expansion bag 1;

[0030] The injection valve 3 is arranged on the catheter 2 for adjusting the flow rate and / or flow rate of the expansion medium;

[0031] The pressure sensor 4 is arranged on the outermost layer of the expansion bag 1 for detecting the expansion pressure of the expansion bag 1 .

[0032] In this embodiment, the expansion capsule 1 is implanted under the normal skin soft tissue, and the expansion medium is injected into the expansion capsule 1 to increase the volume of the expansion capsule 1, so that it generates expansion pressure on the skin soft tissue. Through the effect of this expansion pressure, The division...

Embodiment 2

[0037] In this embodiment, the expansion bag is composed of 6-14 layers of medical silica gel.

[0038] In this embodiment, the expansion sac is set as a multi-layer medical silicone structure, which can reduce the leakage during the expansion process of the expansion sac, so that the detection value of the pressure sensor is closer to the expansion pressure of the expansion sac on the skin tissue, which can improve Detection accuracy, so as to more accurately control the injection flow and flow rate, and reduce the occurrence of complications.

Embodiment 3

[0040] In this embodiment, the expansion capsule is a cube, an elongated body, a sphere or an ellipsoid; wherein, when the expansion capsule is a cube or an elongated body, the eight corners of the expansion capsule are rounded.

[0041] In this embodiment, in addition to the above-mentioned forms, the expansion capsule can also be set as an irregular capsule structure, and it should be noted that there are no sharp corners on the capsule structure. In particular, when the expansion sac is set in a cube or elongated style, its sharp corners should be rounded. It should be noted that the configuration of the dilation sac above is only a partial list of optional structural forms of the dilation sac, which can be set to a corresponding structural form according to production conditions or usage occasions, and the above embodiments are not intended to limit the present invention.

[0042] An embodiment of the present invention provides a skin dilator, wherein the expansion capsule...

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Abstract

The invention relates to the technical field of medical apparatuses, in particular to a skin expander, a skin expanding system and a manufacturing method of the skin expander. The skin expander comprises an expanding bag, a duct, an injection valve and a pressure sensor, wherein the duct is connected with the expanding bag, and is used for injecting an expanding medium to the expanding bag; the injection valve is arranged on the duck, and is used for regulating the flow capacity and / or the flow rate of the expanding medium; and the pressure sensor is arranged on the outermost layer of the expanding bag, and is used for detecting the expanding pressure of the expanding bag. According to the skin expander disclosed by the invention, the pressure sensor is arranged on the outermost layer of the expanding bag, so that the influence of the own retraction pressure of the expanding bag and the reduced pressure caused by leakage of the expander to the pressure value displayed on the sensor isavoided, the pressure value displayed on the sensor approaches the actual pressure of the expanding bag to skin, the flow rate and the flow capacity of the injection medium are convenient to accurately control, the generation of complications in the expanding process is reduced, and the survival rate of expanding skin flaps is increased.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a skin expander, a skin expander system and a manufacturing method thereof. Background technique [0002] Skin and soft tissue dilation, referred to as skin dilation, refers to implanting a skin and soft tissue dilator (referred to as dilator) under the normal skin soft tissue, and injecting liquid into the dilation sac through the injection valve to increase the capacity of the dilator so that it can be more effective on the surface skin. The soft tissue generates pressure, which acts locally through the expansion mechanism, causing the division and proliferation of tissue and epidermal cells and widening the cell gap, thereby increasing the skin area and obtaining repair materials that match the skin color, texture, structure, and hair with the recipient area . [0003] Existing skin expanders rely solely on water injection to generate outward pressure on the surface s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B90/00A61M29/04B29C39/10
CPCA61B90/02A61B2090/064A61M29/02A61M2205/3331A61M2207/00B29C39/10
Inventor 昝涛王智超丁显廷徐祥文陈恒新李青峰胡赞喜
Owner 上海懿熹医疗科技有限公司
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