Granted Patent B2

US 9,713,704 · App. 13/852,257 · Granted Jul 25, 2017

Abstract

Claims (18)

1. A method for cleaning a port reservoir, the method comprising:

providing a port reservoir cleaning system, the system comprising:

a trocar comprising a proximal end and distal end, the distal end terminating in a sharp tip,

a cannula comprising a proximal end, a distal end and a cannula lumen extending therebetween, and

a cleaning member comprising a proximal end, a distal end, a shaft and a cleaning member lumen extending therebetween, wherein a portion of the distal end of the shaft is flexible;

advancing the trocar and cannula as an assembly through a septum fluidly sealing the port reservoir;

withdrawing the trocar from the cannula lumen;

advancing the distal end of the cleaning member through the cannula lumen and into the reservoir;

rotating the cleaning member; and

supplying negative pressure to a lumen of the cleaning member.

2. The method of claim 1 , wherein the cannula further comprises a valve element disposed across the cannula lumen.

3. The method of claim 1 , wherein a first portion of the shaft and a second portion of the shaft have a different flexural modulus.

4. The method of claim 1 , wherein the distal end of the cleaning member comprises a plurality of scraping members.

5. The method of claim 1 , wherein the distal end of the cleaning member is pre-curved and lies in a common plane with the shaft.

6. The method of claim 1 , wherein the distal end of the cleaning member is pre-curved and extends away from a plane extending along the length of the shaft.

7. The method of claim 1 , wherein the distal end of the cleaning member comprises a wire element.

8. The method of claim 1 further comprising:

advancing a wire element through the cannula lumen and into the reservoir.

Assignments (7)