Placement guide for ablation devices

Details Placement guide for ablation devices Placement guide for ablation devices

1999-03-19

2000-11-14

Dvorak, Linda C. M.

Surgery

Instruments

Cyrogenic application

606 41, 607113, 60416404, 60416409, 604515, 600585, A61B 1818

Patent

active

061463787

ABSTRACT:
A placement guide for positioning ablation devices within a human body is disclosed. The placement guide comprise an outer catheter and an inner tubular member disposed within a lumen of the outer catheter. When a stop on the inner tubular member engages a seat on the outer catheter, a distal projection of the inner tubular member extends from the distal end of the outer catheter. While monitoring the position of the inner tubular member through an endoscope inserted in its lumen, a clinician positions the distal projection within a human body for optimal ablation. After securing the outer catheter in position, the inner tubular member is withdrawn and replaced with an ablation device which is inserted distally within the outer catheter lumen until a stop on the ablation device engages the seat on the outer catheter wherein a distal projection of the ablation device extends from the distal end of the outer catheter. Because the distal projection of the inner tubular member has a length substantially identical to that of the inner tubular member, the ablation device may be positioned for optimal ablation.

REFERENCES:
patent: 5390661 (1995-02-01), Griffith et al.
patent: 5800493 (1998-09-01), Stevens et al.
patent: 5873815 (1999-02-01), Kerin et al.
patent: 5891134 (1999-04-01), Goble et al.
patent: 5891457 (1999-04-01), Neuwirth
patent: 5916144 (1999-06-01), Li et al.
patent: 5935098 (1999-08-01), Blaisdell et al.

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