Port reservoir cleaning system and method

• US 9,713,704 B2
• Filed: 03/28/2013
• Issued: 07/25/2017
• Est. Priority Date: 03/29/2012
• Status: Active Grant

• Current Assignee: AngioDynamics, Inc.
• Original Assignee: AngioDynamics, Inc.
• Inventors: Chartrand, Bradley D.
• Primary Examiner(s): GOLIGHTLY, ERIC WAYNE
• Application Number:
  US13/852,257
• Publication Number:
  US 20140296822A1
• Time in Patent Office: 1,580 Days
• Field of Search: None
• CPC Class Codes: A61B 17/3417 Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating syringe needles A61M5/32; dilators A61M29/00
• CPC Class Codes: A61B 2017/3437 with means for removing or absorbing fluid, e.g. wicks or absorbent pads
• CPC Class Codes: A61B 2017/3441 with distal sealing means
• CPC Class Codes: A61B 90/70 Cleaning devices specially adapted for surgical instruments
• CPC Class Codes: A61M 39/0208 Subcutaneous access sites for injecting or removing fluids transcutaneous access sites A61M39/0247; implantable infusion devices A61M5/14276

Abstract

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.

Claims

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.