Catheter and tunneling device therefor

• US 8,251,975 B2
• Filed: 01/07/2010
• Issued: 08/28/2012
• Est. Priority Date: 07/27/2005
• Status: Active Grant

• Current Assignee: Joseph R. Atkins
• Original Assignee: Joseph R. Atkins
• Inventors: Atkins, Joseph R., Catlin, David George
• Primary Examiner(s): Sirmons, Kevin C
• Assistant Examiner(s): PATEL, SHEFALI DILIP
• Application Number:
  US12/683,560
• Publication Number:
  US 20100174291A1
• Time in Patent Office: 964 Days
• Field of Search: 604/158, 604/160, 604/161, 604/162, 604/163, 604/164.01, 604/164.07, 604/165.01, 604/165.02, 604/165.04, 604/166.01, 604/264, 604/272, 604/500, 604/506, 604/507, 604/508, 604/510, 604/93.01, 604/164.08, 604/266, 604/268, 604/523, 604/528, 604/284, 606/108
• US Class Current: 604/510
• CPC Class Codes: A61M 1/3661 for haemodialysis
• CPC Class Codes: A61M 2025/0031 characterized by lumina for withdrawing or delivering, i.e. used for extracorporeal circuit treatment
• CPC Class Codes: A61M 2025/0037 characterized by lumina being arranged side-by-side
• CPC Class Codes: A61M 25/0028 characterized by features relating to at least one lumen located at the proximal part of the catheter, e.g. alterations in lumen shape or valves catheter hubs A61M25/0097
• 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 25/0068 Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
• CPC Class Codes: A61M 25/0194 Tunnelling catheters
• CPC Class Codes: A61M 25/0662 Guide tubes

Abstract

A catheter for introduction and removal of fluids from a body and tunneling device therefor, the catheter has a body having a first conduit for removing fluid from the body and a second conduit for delivering fluid to the body wherein at least a part of each of the conduits is integrally formed within a first end of the body of the catheter and extends along side one another. The first conduit extends beyond the second conduit and forms a terminal point of the first end and defines a first opening thereat and the second conduit extends to a point short of the terminal point defining a second opening. A bumper portion is adjacent the second opening extending toward the terminal point. Another part of each the first and the second conduits are disjoined and form part of a second Y-shaped end. The tunneling device has a channel to removably receive the catheter.

Claims

1. A tunneling device for use in inserting a catheter, comprising:

a relatively rigid member having a handle and an end configured with an elongated groove which extends radially inwardly from an outer surface of said rigid member and runs substantially lengthwise such that the groove is exposed and continuous and configured to laterally receive said catheter, wherein said groove further includes two separate channels forming a Y-shaped mid-section to receive at least part of a Y-shaped end of the catheter, wherein said end of said tunneling device is equipped with a hollow cap removably connected to a tip of said end of said tunneling device to receive a first end of said catheter and cover openings of the first end of the catheter in a manner to maintain the openings substantially covered during insertion of the catheter into a the body thereby preventing potential clogging thereof by tissue and blood and removed post insertion while the tunneling device remains in the body.

2. The tunneling device of claim 1, wherein said groove is generally oval shaped in cross section.

3. The tunneling device of claim 1, wherein said cap is threadably removably disposed on the tip of said end of said tunneling device.

4. A method of introducing a catheter into a body, comprising the steps of:

a. providing a tunneling device comprising a relatively rigid member having a handle and an end configured with an elongated groove which extends radially inwardly from an outer surface of said rigid member and runs substantially lengthwise such that the groove is exposed and continuous and configured to laterally receive said catheter, wherein said groove further includes two separate channels forming a Y-shaped mid-section to receive at least part of a Y-shaped end of the catheter, wherein said end of said tunneling device is equipped with a removable hollow cap removably connected to a tip of said end of said tunneling device to receive openings of a first end of the catheter in a manner to maintain the openings substantially covered during insertion of the catheter into the body thereby preventing potential clogging thereof by tissue and blood;

b. laying the first end of the catheter in the exposed elongated groove in a manner such that the openings of the first end of the catheter are received in the cap of the tunneling device;

c. inserting the tunneling device having the catheter therein through a first incision of the body such that the cap extends out a second incision of the body;

d. removing the cap post insertion while the tunneling device remains in the body;

e. lifting the first end of catheter from the tunneling device;

f. removing said catheter from the tunneling device; and

g. removing said tunneling device from the body.