Percutaneous mapping system

• US 6,241,665 B1
• Filed: 10/21/1998
• Issued: 06/05/2001
• Est. Priority Date: 10/21/1998
• Status: Expired due to Fees

• Current Assignee: PLC Medical Systems, Inc. (Viveve Medical, Inc.)
• Original Assignee: PLC Medical Systems, Inc. (Viveve Medical, Inc.)
• Inventors: Negus, Charles Christopher, Andrews, Robert R., Rudko, Robert I., Woodruff, Eileen A., Linhares, Stephen J.
• Primary Examiner(s): Schaetzle, Kennedy
• Application Number:
  US09/176,506
• Time in Patent Office: 958 Days
• Field of Search: 600/585, 600/374, 607/1, 607/2, 607/89, 607/92, 607/93, 607/98, 607/99, 607/116, 607/122, 606/41, 606/14
• US Class Current: 600/374
• CPC Class Codes: A61B 2562/043 in a linear array
• CPC Class Codes: A61B 5/287 Holders for multiple electrodes, e.g. electrode catheters for electrophysiological study [EPS]
• CPC Class Codes: A61B 5/6857 with a distal pigtail shape
• CPC Class Codes: A61B 6/12 Arrangements for detecting or locating foreign bodies

Abstract

A percutaneous mapping system includes a mapping wire, for percutaneous insertion into an internal body cavity, having a plurality of spaced imaging markers; and an insertion device for deploying the mapping wire in a spiral configuration inside the cavity with the markers distributed about the inner wall of the cavity.

Claims

1. A percutaneous mapping system comprising:

a catheter for percutaneous insertion into an internal body, the catheter including a treatment tip;

a separate mapping wire for percutaneous insertion into an internal body cavity, the wire having a plurality of spaced imaging markers; and

an inserting device for deploying said mapping wire in a spiral configuration inside said cavity with said markers distributed about the inner wall of said cavity for mapping the cavity and determining the position of the tip of the catheter within the body,

wherein said wire includes a straight stylet and said insertion device includes an outer sheath means surrounding and fixed to said stylet at its tip and bearing said image marker means for advancing the wire with said stylet in a straight shape into the cavity and torquing it to assume a spiral shape in the cavity.

2. A percutaneous mapping system comprising:

a catheter for percutaneous insertion into an internal body, the catheter including a treatment tip;

a separate mapping wire for percutaneous insertion into an internal body cavity, the wire having a plurality of spaced imaging markers; and

an inserting device for deploying said mapping wire in a spiral configuration inside said cavity with said markers distributed about the inner wall of said cavity for mapping the cavity and determining the position of the tip of the catheter within the body,

wherein at least one of said plurality of spaced imaging markers includes a sensor device for sensing the electric potential at the wall of the cavity proximate said at least one imaging marker, and wherein said plurality of spaced image markers have different shapes.

3. A percutaneous mapping system comprising:

a catheter for percutaneous insertion into an internal body, the catheter including a treatment tip;

a separate mapping wire for percutaneous insertion into an internal body cavity, the wire having a plurality of spaced imaging markers, at least one of said plurality of spaced imaging markers including a sensor device for sensing the electric potential at the wall of the cavity proximate said at least one imaging marker;

an inserting device for deploying said mapping wire in a spiral configuration inside said cavity with said markers distributed about the inner wall of said cavity for mapping the cavity and determining the position of the tip of the catheter within the body; and

means responsive to the electric potential for determining the presence of a foreign body proximate the cavity wall in the vicinity of the sensor device.