Method and apparatus for location of a catheter tip

• US 6,112,111 A
• Filed: 05/11/1998
• Issued: 08/29/2000
• Est. Priority Date: 09/06/1994
• Status: Expired due to Fees

• Current Assignee: Deltek, Inc. (Roper Technologies, Inc.)
• Original Assignee: Sims Deltec, Inc.
• Inventors: Glantz, Jerald
• Primary Examiner(s): Casler, Brian L.
• Application Number:
  US09/076,220
• Time in Patent Office: 841 Days
• Field of Search: 600/424, 600/11-14, 600/125, 600/117, 600/407, 600/431, 600/433-435, 604/280, 128/899, 128/903, 324/207.11
• US Class Current: 600/424
• CPC Class Codes: A61B 5/06 Devices, other than using radiation, for detecting or locating foreign bodies for removing same A61B17/50 ; determining position of probes within or on the body of the patient

Abstract

The present invention relates to a method and apparatus used to place a catheter having a distal end and a proximal end where the proximal end cannot be trimmed within a patient. The method and apparatus utilize a device operative in locating the tip of a catheter, which includes a detector assembly having a detector and a locator. The detector of the detector assembly is locked into positioned remote from the distal end of the catheter prior to inserting the catheter in the patient. The distal end of the catheter is trimmed, as to define a trimmed distal end, the detector is then unlocked and placed proximate the trimmed end. In the preferred embodiment the detector is locked into place proximate the trimmed distal end and the catheter is placed within the patient.

Claims

1. A catheter location system allowing location of an end of the catheter, said catheter location system comprising:

a catheter including a proximal end, a distal end, and a lumen positioned therebetween;

a catheter detector positioned within the lumen of the catheter; and

a lock positioned at the proximal end of the catheter, the lock being selectively movable between a locked position and an unlocked position for locking and unlocking the catheter detector within the lumen.

2. The catheter location system of claim 1, further comprising a source providing an alternating magnetic current.

3. The catheter location system of claim 1, wherein the proximal end of the catheter includes a fitting.

4. The catheter location system of claim 1, wherein the lock comprises a locking hemostasis valve.

5. The catheter location system of claim 1, wherein the catheter is a chest-type catheter.

6. The catheter location system of claim 1, wherein the catheter is a peripherally inserted central catheter.

7. The catheter location system of claim 1, wherein the catheter detector is locked within the lumen of the catheter remote from the distal end of the catheter.