Anti-extravasation sheath

• US 9,186,055 B2
• Filed: 02/28/2012
• Issued: 11/17/2015
• Est. Priority Date: 02/03/2006
• Status: Active Grant

• Current Assignee: Cannuflow Inc.
• Original Assignee: Cannuflow Inc.
• Inventors: Kucklick, Theodore R.
• Primary Examiner(s): Leubecker, John P
• Application Number:
  US13/407,023
• Publication Number:
  US 20120157972A1
• Time in Patent Office: 1,358 Days
• Field of Search: 600/114, 600/115, 600/128, 600/130, 600153-156, 600/158, 600/159, 604/35, 604/39, 604/43, 604/164.01, 604/164.02, 604/541, 604/264
• US Class Current: 1/1
• CPC Class Codes: A61B 1/00135 Oversleeves mounted on the endoscope prior to insertion
• CPC Class Codes: A61B 1/015 Control of fluid supply or evacuation
• CPC Class Codes: A61B 1/317 for bones or joints, e.g. osteoscopes, arthroscopes
• CPC Class Codes: A61B 17/0218 for minimally invasive surgery A61B17/0281, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 17/3423 Access ports, e.g. toroid shape introducers for instruments or hands access sites for liquids A61M39/0247
• CPC Class Codes: A61B 17/3474 Insufflating needles, e.g. Veress needles
• CPC Class Codes: A61B 2017/00849 with respect to tissue, e.g. hollow organs
• CPC Class Codes: A61B 2017/00853 low friction, hydrophobic and corrosion-resistant fluorocarbon resin coating (ptf, ptfe, polytetrafluoroethylene)
• CPC Class Codes: A61B 2017/00858 high friction, non-slip on handles A61B2017/00429
• CPC Class Codes: A61B 2017/3441 with distal sealing means
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61B 2217/007 with irrigation system
• CPC Class Codes: A61M 1/85 with gas or fluid supply means, e.g. for supplying rinsing fluids or anticoagulants for negative pressure wound therapy A61M1/92, A61M1/94; combined with tracheal tubes A61M16/0463; dental instruments with combined rinsing and aspirating A61C17/0208

Abstract

The devices shown provide for the minimization of extravazation during arthroscopic surgery. The anti-extravazation sheath having a plurality of drainage apertures disposed in a central portion of the outer tube allows a surgeon to drain excess fluids from the tissue surrounding the surgical field during an arthroscopic surgical procedures when the drainage apertures are disposed within the tissue surrounding an arthroscopic surgical field outside of the joint capsule.

Claims

1. A method for performing arthroscopic surgery comprising:

providing an arthroscopic instrument suitable for performing an arthroscopic surgical procedure on a joint capsule;

providing an anti-extravasation sheath comprising, said sheath comprising;

an inner tube characterized by an inner diameter sized and dimensioned to closely fit around an outer diameter of an arthroscopic instrument;

an outer tube disposed about the inner tube;

a plurality of ribs extending between the inner and outer tubes and running longitudinally along the length of the sheath;

wherein the inner tube, the outer tube and the plurality of ribs bound a plurality of drainage lumens that extend between the inner and outer tubes and that run along the length of the sheath; and

a plurality of drainage apertures disposed in a central portion of the outer tube, said drainage apertures in fluid communication with the drainage lumens;

disposing the arthroscopic instrument inside the sheath;

placing a distal tip of the anti-extravasation sheath into the joint capsule such that the drainage apertures are disposed within tissue surrounding an arthroscopic surgical field outside of the joint capsule; and

draining fluid from the tissue surrounding the arthroscopic surgical field outside of the joint capsule through the drainage apertures during the arthroscopic surgical procedure.

2. The method of claim 1 further comprising a slidable sleeve disposed over the outer tube and further comprising the step of sliding the sleeve distally to control exposure of the number of drainage apertures to tissue surrounding a surgical field outside of the joint capsule.