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US 12,721,955 B2Granted
Medical device
AssigneeIndomed Limited
InventorCormac Breatnach
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AssigneeIndomed Limited
InventorCormac Breatnach
Estimating the term…
This invention relates to a medical device (20, 40, 60) for use in aiding the successful placement of a needle tip in a blood vessel. The medical device comprises a resiliently deformable collapsible body (21) defining a pressure chamber therein. The body further comprises a port (29) for engagement of a hub of a needle, the port defining a fluid passageway from the exterior of the body to the interior of the pressure chamber. The device further comprises means to generate an audible noise (31, 41) upon expansion of the collapsible body from a collapsed configuration to an expanded configuration. In this way, as the tip of the needle enters the lumen of the blood vessel, the collapsible body is configured to transition from a contracted to an expanded configuration, thereby causing the auditory cue. This auditory cue indicates to the medical professional that the tip of the needle is in the lumen of the blood vessel.
A medical device for use in aiding the successful placement of a needle tip in a blood vessel, the medical device comprising a resiliently deformable collapsible body defining a pressure chamber therein, a biasing means operable to urge the resiliently deformable collapsible body from a collapsed configuration to an expanded configuration, a port for engagement of a hub of a needle, the port defining a fluid passageway from the exterior of the resiliently deformable collapsible body to the interior of the pressure chamber, and in which the medical device further comprises means to generate an audible noise upon expansion of the collapsible body from a collapsed configuration to an expanded configuration, in which the resiliently deformable collapsible body has a bellows-like configuration with a pair of sides and a bladder therebetween, in which the bladder is concertinaed and in which the means to generate an audible noise comprises a scraper arm, one end of which is connected to one of the pair of sides of the body and the other, free end of which is inwardly depending towards and for engagement of one or more of the folds of the concertinaed bladder.
A medical device for use in aiding the successful placement of a needle tip in a blood vessel, the medical device comprising a resiliently deformable collapsible body defining a pressure chamber therein, a biasing means operable to urge the resiliently deformable collapsible body from a collapsed configuration to an expanded configuration, a port for engagement of a hub of a needle, the port defining a fluid passageway from the exterior of the resiliently deformable collapsible body to the interior of the pressure chamber, and in which the medical device further comprises means to generate an audible noise upon expansion of the collapsible body from a collapsed configuration to an expanded configuration, in which the resiliently deformable collapsible body has a bellows-like configuration with a pair of sides and a bladder therebetween, in which the bladder is concertinaed and in which the means to generate an audible noise comprises a surface coating on the folds of the concertinaed bladder that generate a noise when two abutting surfaces are separated apart from each other.
A medical device for use in aiding the successful placement of a needle tip in a blood vessel, the medical device comprising a resiliently deformable collapsible body defining a pressure chamber therein, a biasing means operable to urge the resiliently deformable collapsible body from a collapsed configuration to an expanded configuration, a port for engagement of a hub of a needle, the port defining a fluid passageway from the exterior of the resiliently deformable collapsible body to the interior of the pressure chamber, and in which the medical device further comprises means to generate an audible noise upon expansion of the collapsible body from a collapsed configuration to an expanded configuration, in which the resiliently deformable collapsible body has a bellows-like configuration with a pair of sides and a bladder therebetween, in which the bladder is concertinaed and in which the means to generate an audible noise comprises a spring force holding the folds of the concertinaed bladder together that generate a noise when two sides of a fold are separated apart from each other.
Dependencies are inferred from the claim text.