Methods and apparatus for inhibiting infection of subcutaneously implanted devices
First Claim
1. A method for inhibiting infection of an implanted device, said method comprising percutaneously injecting or withdrawing a fluid through a single percutaneous access tract to the device;
- and;
injecting a washing solution through the same percutaneous access tract to the device in an amount sufficient to flush a region within or surrounding the device such that the washing solution flows outwardly back through the access tract.
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Accused Products
Abstract
Implantable ports and other devices are cleansed by the injection of a washing solution into a region in the device or in a tissue pocket surrounding the device. In a first embodiment, the washing solution is injected through an aperture in the device to flush internal regions of the device before infusing the tissue pocket and flushing outwardly through a tissue tract leading to the device. In other embodiments, the washing solution is injected directly to a target site on the exterior of the device. Implantable devices may include special, usually hardened, target regions for receiving the sharpened end of a needle used to inject the washing solution. Kits will include devices, syringes, access devices, and instructions for cleansing according to the methods of the present invention.
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Citations
17 Claims
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1. A method for inhibiting infection of an implanted device, said method comprising percutaneously injecting or withdrawing a fluid through a single percutaneous access tract to the device;
- and;
injecting a washing solution through the same percutaneous access tract to the device in an amount sufficient to flush a region within or surrounding the device such that the washing solution flows outwardly back through the access tract. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- and;
- 10. A method for inhibiting infection of an implanted port which has an aperture for receiving an access tube, said method comprising subcutaneously injecting a washing solution through a tissue tract into the aperture in an amount sufficient to at least partly fill said aperture and to overflow from said aperture to infuse a region surrounding the port within a pocket of tissue and to flow outwardly back through the access tract.
Specification