Negative pressure wound therapy pump and canister
Inventors
Barr, Aaron • Lamper, John Anthony • Ramge, Philip Leighton • Lasher, Elliott Conrad
Assignees
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Publication Number
US-11179506-B2
Publication Date
2021-11-23
Expiration Date
Abstract
An apparatus is including a negative pressure wound therapy pump including a pump housing; and a negative pressure wound therapy canister attached to and readily removable from the pump housing; the canister including a flexible conduit; the canister operable to receive suction generated by the pump; the flexible conduit sized, shaped, and located to interface with the pump housing of the pump such that suction produced by the pump is transmitted to the canister via the flexible conduit.
Core Innovation
The invention relates to negative pressure wound therapy pump/canister assemblies in which a negative pressure wound therapy pump portion includes a pump housing with a vacuum pump disposed within the pump housing. The pump housing defines a first hinge portion on a first lateral side and a latch catch on a second lateral side opposite the first lateral side, and a canister sized and shaped to be selectively coupled to and readily removable from the pump portion includes a second hinge portion.
The first hinge portion and the second hinge portion are hingedly coupleable through a hinged range of motion that includes a tethered position in which the pump portion is tethered to the canister and an untethered position in which the canister is untethered from the pump portion to be readily removable from the pump portion. In the untethered position, the second hinge portion is hingedly coupled to the first hinge portion, while the second hinge portion is untethered to the first hinge portion.
A latch is sized and shaped to engage the latch catch to secure the canister to the pump portion. Structural coupling further includes pump output port and conduit-seat features, including a pump output port configured with a frusto-conical conduit seat, and the canister includes an internal fluid management structure employing a hydrophobic/oleophobic membrane, identified as an ePTFE laminate, with a membrane key and a dam welded into a bounded pressure pathway.
Claims Coverage
The independent claim covers an apparatus for negative pressure wound therapy that combines a pump portion with a vacuum pump, a selectively removable canister hingedly coupled through a hinged range of motion, and a latch that engages a latch catch. The inventive features include hinge-coupled tethered and untethered positions, latch engagement for secure coupling, and defined conduit-seat and internal fluid management structures using a hydrophobic/oleophobic membrane and a bounded pressure pathway.
Tethered and untethered hinged coupling of pump and canister
A canister selectively coupled to and readily removable from the pump portion, where the first hinge portion and the second hinge portion are hingedly coupleable through a hinged range of motion including a tethered position and an untethered position for readily removable coupling.
Latch engagement between canister latch and pump latch catch
A canister including a latch sized and shaped to engage the latch catch, securing the canister in the untethered position where the hinged range of motion provides hingedly coupled yet untethered removable operation.
Vacuum pump disposed within the pump housing
A negative pressure wound therapy pump portion including a pump housing defining a first hinge portion and a latch catch, and including a vacuum pump disposed within the pump housing.
Pump-conduit interface via frusto-conical conduit seat
A pump output port configured with a frusto-conical conduit seat supporting coupling with the canister.
Hydrophobic/oleophobic membrane fluid management bounded by a pressure pathway
A canister internal fluid management structure using a hydrophobic/oleophobic membrane with a membrane key and a dam welded into a bounded pressure pathway to manage fluids within the canister.
Across the independent claim, the core coverage is the structural combination of a pump portion with an onboard vacuum pump and hinge-defined tethered/untethered removability of a canister, secured by a latch engaging a latch catch, with additional covered structural elements relating to the pump-conduit sealing interface and internal canister fluid management using a hydrophobic/oleophobic membrane in a bounded pressure pathway.
Stated Advantages
Documented Applications
No documented applications found
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