Anti-extravasation catheter

• US 8,647,322 B2
• Filed: 01/22/2013
• Issued: 02/11/2014
• Est. Priority Date: 10/24/2006
• Status: Active Grant

• Current Assignee: Cannuflow Inc.
• Original Assignee: Cannuflow Inc.
• Inventors: Kucklick, Theodore R.
• Primary Examiner(s): Lucchesi, Nicholas
• Assistant Examiner(s): LEE, WENG WAH
• Application Number:
  US13/746,659
• Publication Number:
  US 20130131584A1
• Time in Patent Office: 385 Days
• Field of Search: 604506-508, 604/264, 604/288.01, 604/288.03, 604/500, 604/173, 600/114, 600/156, 600/105
• US Class Current: 604/508
• CPC Class Codes: A61B 5/0084 for introduction into the body, e.g. by catheters A61B5/1459 takes precedence
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/02152 specially adapted for venous pressure
• CPC Class Codes: A61B 5/053 Measuring electrical impedance or conductance of a portion of the body
• CPC Class Codes: A61B 5/14539 for measuring pH
• CPC Class Codes: A61M 1/77 Suction-irrigation systems aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463
• CPC Class Codes: A61M 2025/0004 having two or more concentrically arranged tubes for forming a concentric catheter system
• CPC Class Codes: A61M 2025/0036 with more than four lumina
• CPC Class Codes: A61M 2025/0039 characterized by lumina being arranged coaxially
• CPC Class Codes: A61M 25/0026 Multi-lumen catheters with stationary elements catheter assemblies comprising a catheter in combination with a guide tube, sheath or sleeve A61M2025/0681; catheters comprising telescoping coaxial elements A61M2025/0175
• CPC Class Codes: A61M 25/0029 characterized by features relating to least one lumen located at the middle part of the catheter, e.g. slots, flaps, valves, cuffs, apertures, notches, grooves or rapid exchange ports catheter shaft surface irregularities A61M2025/006
• CPC Class Codes: A61M 25/007 Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
• CPC Class Codes: A61M 5/14 Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
• CPC Class Codes: A61M 5/5086 for indicating if defective, used, tampered with or unsterile

Abstract

The disclosed devices and methods provide for the minimization of fluid extravasation during use of infusion catheters such as peripherally inserted central catheters and central venous catheters. The anti-extravasation catheter allows a surgeon to drain fluids from soft tissue surrounding an infusion site while also providing fluid inflow to a patient.

Claims

1. A method for performing chemotherapy comprising:

providing a chemotherapy therapeutic fluid source;

providing an anti-extravasation catheter, said catheter having a length and an outer diameter suitable for extending from a peripheral vein insertion point on a patient to a treatment site, said catheter characterized by an elongated venous section located distal to an interstitial section and comprising;

an inner tube characterized by central lumen;

an outer tube disposed about the inner tube;

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

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 catheter; and

a plurality of apertures disposed in the interstitial section of the outer tube, said apertures in fluid communication with the drainage lumens and adapted to drain fluid from tissue surrounding the insertion point when the catheter is operably disposed within the patient;

wherein the venous section of the outer tube comprises an outer surface and is structured to prevent fluid communication between the outer surface of the venous section and the drainage lumens;

disposing the anti-extravasation catheter inside a patient;

placing the drainage apertures in fluid communication with tissue surrounding the insertion point;

infusing the chemotherapy therapeutic fluid into the patient through the catheter; and

draining interstitial fluid from tissue surrounding the catheter insertion point during a chemotherapeutic session through the drainage apertures.

2. The method of claim 1 wherein the catheter further comprises a dissolvable plug in fluid communication with the drainage aperture.

3. The method of claim 1 wherein the dissolvable plug comprises a material selected from the group consisting of starches, gelatins, lactose, sucrose, sugars and cellulose.

4. The method of claim 1 further comprising the steps of:

providing an antidote source; and

infusing the antidote into the tissue.

5. The method of claim 4 further comprising the step of cycling between infusing the antidote to the tissue and aspirating the interstitial fluid from the tissue surrounding through the catheter.

6. The method of claim 1 further comprising the step of detecting the occurrence of extravasation with an extravasation sensor operably coupled to the catheter, said sensor selected from the group consisting of a temperature sensor, a pressure sensor, a conductivity sensor and a Ph sensor.

7. The method of claim 6 further comprising the steps of:

providing a control system operably connected to the catheter, said control system adapted to detect the occurrence of extravasation; and

alerting a user of the occurrence of extravasation using the control system.