Echogenic Indwelling Catheter
AssigneeFerrosan Medical Devices Sp. Z.O.O.
InventorsKai Lange, Christian Rothe, Frederik Sonnenborg, Arnt Larsen Lund
Life of this patent
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Abstract
The present application relates to an echogenic indwelling catheter, an assembly and a method for medicating a patient with medication such as anaesthetics or other suitable drugs. In one embodiment, the echogenic indwelling catheter comprises a catheter shaft (1) comprising a bore (2), a plurality of radial holes (3) distributed along at least a part of said catheter shaft and configured for delivery of medication, a guidewire (5b) attached to and/or within the bore of the catheter and extending beyond a distal end of the catheter shaft.
Claims33
An echogenic indwelling catheter for administration of fluid medication, comprising:
- a catheter shaft comprising a bore;
- a plurality of radial holes distributed along at least a part of said catheter shaft and configured for delivery of medication,
- wherein said bore of the catheter comprises obstructions, each obstruction comprising a solid substance distal to the plurality of holes such that one or more volume(s) of air or another echogenic material is/are permanently entrapped between the obstructions and inside the bore;
- and
- a guidewire attached to and/or within the bore of said catheter and extending beyond a distal end of said catheter shaft, wherein a distal end of said plurality of radial holes are positioned in front of a proximal end of said guidewire.
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An assembly for administration of medication, comprising:
- a hollow needle, wherein at least a part of it is echogenic, and
- an echogenic indwelling catheter for administration of fluid medication, comprising:
- i. a catheter shaft comprising a bore;
- ii. a plurality of radial holes distributed along at least a part of said catheter shaft and configured for delivery of medication, wherein said bore of the catheter comprises obstructions, each obstruction comprising a solid substance distal to the plurality of holes such that one or more volume(s) of air or another echogenic material is/are permanently entrapped between the obstructions and inside the bore;
- and
- iii. a guidewire attached to and/or within the bore of said catheter and extending beyond a distal end of said catheter shaft, wherein a distal end of said plurality of radial holes are positioned in front of a proximal end of said guidewire,
- wherein said indwelling echogenic catheter has a cross sectional dimension that is identical or larger than the hollow needle.
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A method for administration of medication to a target, comprising the steps of:
- inserting a needle tip into an entrance area of a patient such that it forms an entrance perforation;
- aligning said needle tip in proximity of the target;
- pushing said needle further into said patient such that said needle tip perforates and protrudes from an exit area of said patient such that it forms an exit perforation which is different from said entrance perforation in said patient;
- retracting said needle from said exit area or entrance area of said patient while or after a catheter is guided into said patient from said exit perforation or entrance perforation of said patient by said needle such that said catheter is positioned inside said patient and protruding both said entrance perforation and exit perforation, wherein said catheter comprises:
- i. a shaft comprising a bore, and
- ii. a plurality of holes;
- and
- injecting medication through said bore of said catheter and out of said plurality of holes in said catheter to said target.
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Dependencies are inferred from the claim text.