US 12,642,707 B2 · Apparatuses and methods for negative pressure wound therapy

Abstract

Disclosed herein are several embodiments of a negative pressure appliance and methods of using the same in the treatment of wounds. Some embodiments are directed towards wound dressings comprising a liquid and gas permeable transmission layer, an absorbent layer for absorbing wound exudate, the absorbent layer overlying the transmission layer, a gas impermeable cover layer overlying the absorbent layer and comprising a first orifice, wherein the cover layer is moisture vapor permeable. Some embodiments are directed to improved fluidic connectors or suction adapters for connecting to a wound site, for example using softer, kink-free conformable suction adapters.

Claims21

Dependent claims

A negative pressure wound therapy system comprising:

a wound dressing comprising:
a wound contact layer;
a material layer above the wound contact layer;
and
a cover layer above the material layer and comprising an orifice;
a fluidic connector attachable to the wound dressing, the fluidic connector comprising an upper film layer and a lower film layer;
a spacer layer;
and
a filter,
wherein, when the fluidic connector is attached to the wound dressing:
the filter is positioned above the orifice of the cover layer;
and
the spacer layer is positioned below the filter and the spacer layer is configured to support the filter and create a gap between the filter and the material layer and extends from below the filter to below an outer edge of the upper film layer of the fluidic connector.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application

18/114,769Filed 27 Feb 2023 · continuation

Priority

23 May 2012

Published

US 2023/0310221 A15 Oct 2023

Granted

2 Jun 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification15 codes

A61F 13/05
Bandages or dressings ; Absorbent pads: specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation,…
A61F 13/022
With fluid retention members: having more than one layer with different fluid retention characteristics
A61M 1/64
Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems:…
A61M 1/79
Suction drainage systems: filters for solid matter

Family

Application61/650,904Us provisional application · filed 23 May 2012

Application61/785,927Us provisional application · filed 14 Mar 2013

PCT/IB2013/001469Parent of this continuation · filed 22 May 2013

Application15/890,218Parent of this continuation · filed 6 Feb 2018

US 9,907,703 B2Parent of this continuation · filed 6 Mar 2018

Application16/169,810Parent of this continuation · filed 24 Oct 2018

US 10,507,141 B2Parent of this continuation · filed 17 Dec 2019

US 2023/0310221 A1Pre-grant publication · published 5 Oct 2023

US 11,590,029 B2Parent of this continuation

Application14/403,036Parent of this continuation

US 2015/0141941 A1Published application

US 2018/0168869 A1Published application

US 2019/0053955 A1Published application

US 12,642,707 B2This patent

From the US filing history. Foreign family members aren’t listed.

Apparatuses and methods for negative pressure wound therapy

Life of this patent

Apparatuses and methods for negative pressure wound therapy

Life of this patent

Abstract

Claims21