Multi-lumen Bridge for Negative Pressure Wound Therapy Systems

Abstract

A bridge for facilitating delivery of reduced pressure to a wound site includes: a reduced pressure lumen configured to be fluidly coupled to a source of reduced pressure; a secondary pressure lumen configured to be fluidly coupled to the secondary pressure source; and One or more fluid adapters are operably connected to a wound dressing positioned at the wound site. One or more fluid adapters are positioned and configured relative to the reduced pressure lumen to apply reduced pressure from the reduced pressure lumen to the wound site through the wound dressing and to deliver osmotic fluid removed from the wound site through the reduced pressure lumen to the reduced pressure tube. out. The secondary pressure lumen is fluidly coupled to the reduced pressure lumen to facilitate flow of exudate removed from the wound site through the reduced pressure source using the secondary pressure source.

Description

technical field [0001] The present disclosure relates to the field of negative pressure wound therapy. More particularly, the present disclosure relates to bridges for facilitating fluid flow to / from inaccessible wound sites. Background technique [0002] The main purpose of negative pressure wound therapy (also called "reduced pressure therapy" or "vacuum therapy" in the medical world) is to apply reduced pressure (also called "negative pressure" or "vacuum pressure") to the wound site. but will be referred to herein as "decompression") to facilitate healing and remove excess exudate from the wound site. The main components of a Negative Pressure Wound Therapy System (“NPWT System”) include: a source of reduced pressure (e.g., a vacuum pump); a waste tank to collect extracted exudate from the wound site; and a wound dressing / housing to fill / Cover the wound site and fluidly connect the wound dressing / housing to the reduced pressure source and tank. Wound dressings genera...

AI Technical Summary

Problems solved by technology

In the former solution for difficult-to-access wound sites, it has been found that the distance between the bridge and the dome prevents the dual air flow in the dome from having a significant impact on exudate removal from the wound site to the canister

In the latter solution, for hard-to-access wound sites, the required dual air flow is generally omitted or vents are provided in the bridge or wound dressing, which still has the risk of introducing ambient air that cannot be effectively controlled into the NPWT system as described above. adverse effects of

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