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Publication Number
US-8647327-B2
Publication Date
2014-02-11
Expiration Date
Abstract
The invention relates to a test unit for wound drainage coverings comprising: a base body with at least one cavity; at least one supply line that runs through the base body and which connects an outer side of the base body to the cavity; a surface of the base body that is embodied as a support surface for supporting wound coverings and the wound drainage coverings thereof and several channels that run through the base body, the channels connecting the cavities to the support surface. Low pressure can be produced in the cavity and the channels when the support surface is covered in an air-tight manner. As a result, wound drainage applications are tested in different ways using simple and economical means.
Core Innovation
The invention provides a test system for wound drainage dressings. The test unit includes a main body with at least one cavity, at least one supply line that runs within the main body and connects an outer face of the main body to the at least one cavity, and a support arranged on the surface of the main body over the at least one cavity for supporting wound dressings and wound drainage covers.
A plurality of channels run within the main body and connect the at least one cavity to the support surface, leading outward from the at least one cavity to the support surface. A vacuum is able to be generated in the at least one cavity and the channels when the support surface is covered in an airtight manner. The test system further comprises at least one liquid reservoir connectable to the at least one supply line and a drainage container connectable to the support surface via a drainage line and a vacuum attachment.
The described test system enables vacuum generation in the cavity and the channels for simulation of wound drainage conditions. It further allows connection of a liquid reservoir system and a drainage container, with optional suction pump and electronic control and evaluation electronics to control and document vacuum and to quantify measured drainage flow/volume.
Claims Coverage
The independent claim defines a wound-drainage-dressing test system with 5 core inventive structural/functional features: a main body cavity, supply line routing from an outer face into the cavity, a support surface over the cavity for wound dressings and wound drainage covers, channels connecting the cavity to the support surface, and generation of a vacuum in the cavity and channels when the support surface is airtightly covered, together with a liquid reservoir and a drainage container connectable via a drainage line and vacuum attachment.
Vacuum-generatable cavity and channels under airtight support covering
A vacuum is able to be generated in the at least one cavity and the channels when the support surface is covered in an airtight manner.
Main body cavity connected to an outer face by supply line
A main body with at least one cavity, and at least one supply line, which runs within the main body and which connects an outer face of the main body to the at least one cavity.
Support on main body surface for wound dressings and wound drainage covers
A support on the surface of the main body arranged over the at least one cavity, for supporting wound dressings and wound drainage covers.
Channels within the main body connecting cavity to support surface
A plurality of channels, which run within the main body and which connect the at least one cavity to the support surface, leading from the at least one cavity outward to the support surface.
Liquid reservoir connectable to the supply line
At least one liquid reservoir, which is able to be connected to the at least one supply line.
Drainage container connectable via drainage line and vacuum attachment
A drainage container, which is able to be connected to the support surface via a drainage line and a vacuum attachment.
Overall, the claim set covers a wound-drainage-dressing test system in which a cavity and internal channels are connected to a support surface for wound dressings and wound drainage covers, with vacuum generation possible when the support surface is airtight covered.
Stated Advantages
Enables vacuum generation in the cavity and the channels when the support surface is airtight covered.
Allows connection of liquid reservoirs to supply lines and collection via a drainage container connected via a drainage line and vacuum attachment.
Supports control and documentation of vacuum and quantification of measured drainage flow/volume.
Documented Applications
Test/benchmarking of wound drainage dressings using a test system with simulated wound bed cavities, supply lines, channels, and an airtight-covered support surface enabling vacuum drainage conditions.
Simulation of patient temperature via optional heating.
Measurement variations including different drain positions, dressings, test liquids, vacuums, suction sequences, and cavity configurations, with measured volumetric flow/volume behavior.
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