Wound dressing and negative pressure wound treatment device

A negative pressure wound treatment and wound dressing technology, applied in the field of medical devices, can solve problems such as clogging of the absorption layer, and achieve the effect of avoiding local clogging

Pending Publication Date: 2022-06-03
HUIZHOU HUAYANG MEDICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a wound dressing and a negative pressure wound treatment device to solve the technical problem that the absorbent layer is prone to clogging

Method used

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  • Wound dressing and negative pressure wound treatment device
  • Wound dressing and negative pressure wound treatment device
  • Wound dressing and negative pressure wound treatment device

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Embodiment 3

[0077] see Figure 8 The wound dressing 10 includes a backing layer 1 , a water-blocking and breathable film 2 , an absorbing layer 5 , a pressure distribution layer 4 , a wound contact layer 7 and a release film layer 8 which are stacked in sequence. Wherein the backing layer 1 is configured to form a seal at the wound site, the backing layer 1 includes an opening 1a. The absorbent layer 5 is used to absorb wound exudate, and the absorbent layer 5 is perforated, and the perforated places correspond to the openings 1 a of the backing layer 1 . The pressure distribution layer 4 is used to transmit wound exudate and distribute negative pressure from a negative pressure source. The wound contact layer 7 is intended to be in direct contact with the wound in use. The release film layer 8 is removably pasted on the wound contact layer 7 . In this embodiment, the pressure distribution layer 4 has the same or approximately the same dimensions as the absorbent layer 5 .

[0078] It...

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Abstract

The invention provides a wound dressing and a negative pressure wound treatment device. The wound dressing comprises a backing layer, an absorption bag, an absorption layer and at least one pressure distribution layer. Wherein the backing layer is provided with an opening, and the opening is used for being in fluid communication with a negative pressure source; the absorption bag is arranged on one side of the backing layer and comprises a first structural layer and a second structural layer, the peripheries of the second structural layer and the first structural layer are jointed to form an accommodating space, and the first structural layer is closer to the backing layer than the second structural layer; the absorbing layer is arranged in the accommodating space; the at least one pressure distribution layer and the absorption bag are arranged on the same side of the backing layer, and the pressure distribution layer is located on the side, close to the backing layer, of the absorption layer and/or the side, away from the backing layer, of the absorption layer; wherein the softness of the first structural layer is greater than that of the pressure distribution layer, and the softness of the second structural layer is greater than that of the pressure distribution layer. According to the technical scheme provided by the invention, local blockage of the absorption layer can be prevented to a certain extent.

Description

technical field [0001] The present application relates to the technical field of medical devices, in particular to wound dressings and negative pressure wound treatment devices. Background technique [0002] Negative pressure wound therapy uses a negative pressure source to apply negative pressure to the wound, which can accelerate blood circulation at the wound site, stimulate the growth of granulation tissue, and thus help to promote wound healing. It is a pure physical therapy developed in recent years for wound treatment. therapy. [0003] A wound dressing used for negative pressure wound therapy in the related art usually includes a backing layer, an absorbing layer and a wound contact layer which are stacked in sequence. Openings are provided on the backing layer to communicate with the negative pressure source. In the process of applying negative pressure, the negative pressure tends to concentrate on the position corresponding to the opening of the backing layer, r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/02A61M1/00
CPCA61F13/0216A61F13/0209A61F13/022A61F2013/00663A61F2013/00582
Inventor 张子昂
Owner HUIZHOU HUAYANG MEDICAL EQUIP
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