Body-space drainage-tube debris removal

• US 7,854,728 B2
• Filed: 05/03/2004
• Issued: 12/21/2010
• Est. Priority Date: 05/02/2003
• Status: Active Grant

• Current Assignee: ClearFlow, Inc.
• Original Assignee: Imperial College Innovations Ltd. (Imperial College London)
• Inventors: Boyle, Edward M Jr.
• Primary Examiner(s): Sirmons; Kevin C
• Assistant Examiner(s): Osinski; Bradley J
• Application Number:
  US10/555,130
• Publication Number:
  US 20060264988A1
• Time in Patent Office: 2,423 Days
• Field of Search: 604/96.01, 604/106, 604/266, 604/267, 151/041.6
• US Class Current: 604/267
• CPC Class Codes: A61B 2090/701 for flexible tubular instruments, e.g. endoscopes
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61B 90/70 Cleaning devices specially adapted for surgical instruments
• CPC Class Codes: A61M 1/76 Handpieces specially for suction-irrigation A61M1/774, aspiration tips A61M1/84
• CPC Class Codes: A61M 16/0463 combined with suction tubes, catheters or the like; Outside connections
• CPC Class Codes: A61M 2025/0019 Cleaning catheters or the like, e.g. for reuse of the device, for avoiding replacement
• CPC Class Codes: A61M 2027/004 with at least a part of the circuit outside the body
• CPC Class Codes: A61M 2205/0205 Materials having antiseptic or antimicrobial properties, e.g. silver compounds, rubber with sterilising agent
• CPC Class Codes: A61M 2205/0216 Materials providing elastic properties, e.g. for facilitating deformation and avoid breaking
• CPC Class Codes: A61M 2210/101 Pleural cavity
• CPC Class Codes: A61M 27/00 Drainage appliance for wounds or the like , i.e. wound drains, implanted drains negative pressure wound therapy devices A61M1/90; implements for holding wound open A61B17/02 ; middle ear drainage A61F11/202
• CPC Class Codes: A61M 27/002 Implant devices for drainage of body fluids from one part of the body to another intraocular A61F9/00781; middle ear A61F11/202

Abstract

In accordance with embodiments of the present invention, a debris removal system is provided for a body-space drainage system having one or more body tubes with a body tube lumen disposed therein. The debris-removal system comprises a cleaning member, a collapsible sheath, and a coupler. The cleaning member is an elongated member wherein the distal end is adapted to enter the body tube lumen at or near the body-tube proximal end and adapted to be advanced distally at least a portion of a length of the body tube lumen. The collapsible sheath is adapted to contain at least a portion of the cleaning member that is not contained within the body tube lumen. The collapsible sheath is flexible so as to allow external digital manipulation of the cleaning member proximal end within of the collapsible sheath, while retaining the sterile environment of the body-space drainage system.

Claims

1. A debris-removal system comprising:

a body tube having a body tube proximal end, a body tube distal end, and a body tube lumen; and

a cleaning member;

wherein the cleaning member is adapted for manipulation within the body tube for dislodging and/or breaking up debris within the body tube;

the cleaning member comprising a flexible filament;

the flexible filament consisting of a tip having a straight cross-section that is obliquely angled comprising a straight and obliquely angular tip with respect to a longitudinal axis of the flexible filament, and

wherein the cleaning member is of a length such that the tip cannot exit the body tube distal end.

2. The debris-removal system of claim 1, further comprising a collapsible sheath and a coupler, wherein the collapsible sheath is adapted to contain at least a portion of the cleaning member that is not contained within the body tube lumen, the collapsible sheath being flexible so as to allow external digital manipulation of the cleaning member within the collapsible sheath.

3. The debris-removal system of claim 2, wherein the collapsible sheath is adapted for permitting advancement, retraction and manipulation of the cleaning member within the body tube lumen from outside of the collapsible sheath.

4. The debris-removal system of claim 2, wherein the collapsible sheath is adapted to couple at or near the body tube proximal end in fluid tight and sterile seal engagement with the body tube lumen.

5. The debris-removal system of claim 4, wherein the coupler comprises:

a body tube port adapted to couple with the body tube;

a canister tube port adapted to couple with a canister tube; and

a collapsible sheath port adapted to couple with the collapsible sheath, wherein the coupler defines a passage in communication with the body tube port, the canister tube port and the collapsible sheath port, the passage adapted to receive the cleaning member.

6. The debris-removal system of claim 1, the flexible filament further comprising a flexible filament lumen;

the flexible filament lumen defining a flow path to and/or from the flexible filament distal end and adapted to provide a suction or vacuum path for collection and removal of dislodged or broken up debris; and

the flexible filament distal end adapted for coupling with a vacuum source and adapted to extract dislodged or broken up debris.

7. The debris-removal system of claim 1, wherein the flexible filament is selected from a group consisting of semi-rigid wire, plastic rod, and tubing.

8. A debris-removal system comprising:

a body tube having a body tube proximal end, a body tube distal end, and a body tube lumen;

a cleaning member comprising a tubular filament comprising a tubular filament proximal end, a tubular filament distal end and a tubular filament lumen defining a flow path therebetween, the tubular filament being sufficiently flexible to traverse curvature of the body tube lumen but being sufficiently rigid so as to advance through the body tube lumen by pushing from the proximal end for dislodging and/or breaking up debris within the body tube lumen, the tubular filament distal end consisting of a tip having a straight cross-section that is obliquely angled with respect to a longitudinal axis of the flexible filament;

a suction source coupled to said body tube proximal end and being effective to draw a vacuum from the body tube distal end through said body tube around said cleaning member inserted therein;

a fluid source coupled to and in fluid communication with said tubular filament lumen via said tubular filament proximal end; and

a fluid supplied from said fluid source and being expelled into said body tube lumen from said filament distal end, the fluid comprising a therapeutic agent selected from the group consisting of antibiotic agents and anti-neoplastic agents,

wherein the cleaning member is adapted for manipulation within the body tube for dislodging and/or breaking up debris within the body tube; and

wherein during operation said suction source can be operated to draw said vacuum around said cleaning member simultaneously with the delivery of said fluid through said tubular filament lumen to be expelled from the tubular filament distal end, and

wherein the cleaning member is of a length such that the tubular filament distal end cannot exit the body tube distal end.

9. The debris-removal system of claim 8, wherein the therapeutic agent is an antibiotic agent.

10. The debris-removal system of claim 8, wherein the therapeutic agent is an anti-neoplastic agent.

11. The debris-removal system of claim 8, further comprising a collapsible sheath and a coupler, wherein the collapsible sheath is adapted to contain at least a portion of the cleaning member that is not contained within the body tube lumen, the collapsible sheath being flexible so as to allow external digital manipulation of the cleaning member within the collapsible sheath.

12. The debris-removal system of claim 11, wherein the collapsible sheath is adapted for permitting advancement, retraction and manipulation of the cleaning member within the body tube lumen from outside of the collapsible sheath.

13. The debris-removal system of claim 11, wherein the collapsible sheath is adapted to couple at or near the body tube proximal end in fluid tight and sterile seal engagement with the body tube lumen.

14. The debris-removal system of claim 11, wherein the coupler comprises:

a body tube port adapted to couple with the body tube;

a canister tube port adapted to couple with a canister tube; and

a collapsible sheath port adapted to couple with the collapsible sheath, wherein the coupler defines a passage in communication with the body tube port, the canister tube port and the collapsible sheath port, the passage adapted to receive the cleaning member.