Guiding introducer system for use in medical procedures in the left ventricle

• US 6,526,302 B2
• Filed: 12/04/2000
• Issued: 02/25/2003
• Est. Priority Date: 11/03/1994
• Status: Expired due to Term

• Current Assignee: St. Jude Medical (Abbott Laboratories Incorporated)
• Original Assignee: Daig Corporation (Abbott Laboratories Incorporated)
• Inventors: Hassett, James A.
• Primary Examiner(s): COHEN, LEE S
• Application Number:
  US09/728,961
• Publication Number:
  US 20010005783A1
• Time in Patent Office: 813 Days
• Field of Search: 600/374, 600/585, 606/41, 607/122, 604/280, 604/281
• US Class Current: 600/374
• CPC Class Codes: A61M 2025/0681 Systems with catheter and outer tubing, e.g. sheath, sleeve or guide tube
• CPC Class Codes: A61M 25/0041 pre-formed, e.g. specially adapted to fit with the anatomy of body channels urethral catheters A61F2/04
• CPC Class Codes: A61M 25/01 Introducing, guiding, advancing, emplacing or holding catheters A61M25/10 takes precedence
• CPC Class Codes: A61M 25/0133 Tip steering devices
• CPC Class Codes: A61M 25/0152 with pre-shaped mechanisms, e.g. pre-shaped stylets or pre-shaped outer tubes
• CPC Class Codes: A61M 25/0662 Guide tubes
• CPC Class Codes: A61N 1/056 Transvascular endocardial electrode systems
• CPC Class Codes: A61N 1/057 Anchoring means; Means for fixing the head inside the heart
• CPC Class Codes: A61N 2001/0578 having means for removal or extraction
• CPC Class Codes: H04L 61/50 Address allocation

Abstract

A guiding introducer system for use in the treatment of arrhythmia associated with the left ventricle from the ventricular side comprising an inner guiding introducer and an outer guiding introducer wherein the inner guiding introducer is comprised of a first and second section and the outer guiding introducer is comprised of a first and second sections. The guiding introducer system is for use in sensing, pacing, and ablating procedures in the left ventricle.

Claims

1. A guiding introducer system for use in medical procedures within the left ventricle with a separate medical device comprising a precurved inner guiding introducer and a precurved outer guiding introducer, wherein said guiding introducers are used in combination and wherein the outer guiding introducer is formed in a predetermined, precurved shape which precurved shape assists in placement of a portion of the system in the left ventricle, wherein a dilator containing distal and proximal ends is used in conjunction with the inner and outer guiding introducers.

2. The guiding introducer system of claim 1 wherein the inner guiding introducer comprises a first and second sections each with proximal and distal ends, wherein the first section is a generally elongated straight section, wherein merged with the distal end of said first section is the second section which contains a curved section with a radius of about 0.5 to about 1.5 in. to form an arc of approximately 45 to 135 degrees ending in the distal end of the second section of the inner guiding introducer.

3. The guiding introducer system of claim 2 wherein a plurality of vents is provided near the distal end of the second section of the inner guiding introducer.

4. The guiding introducer system of claim 1 wherein the outer guiding introducer comprises a first and second sections each with proximal and distal ends, wherein the first section is a generally elongated straight section, wherein merged with the distal end of said first section is the second section which contains a curved portion, curving in a radius of about 0.5 to about 1.5 in. to form an arc of about 145 to about 260 degrees, ending in the distal end of the second section of the outer guiding introducer.

5. The guiding introducer system of claim 4 wherein a plurality of vents is provided near the distal end of the second section of the outer guiding introducer.

6. A system for use in medical procedures within the left ventricle comprising a precurved inner guiding introducer, a precurved outer guiding introducer and a sensing or ablation catheter, wherein said guiding introducers are used in combination and wherein the outer guiding introducer is formed in a predetermined, precurved shape which precurved shape assists in placement of a portion of the system in the left ventricle.

7. The guiding introducer system of claim 6 wherein tip markers are secured to the outer guiding introducer.

8. A system for use in medical procedures within the left ventricle comprising a precurved inner guiding introducer, a precurved outer guiding introducer and a sensing or ablation catheter, wherein said guiding introducers are used in combination and wherein the inner guiding introducer is formed in a predetermined, precurved shape which shape assists in placement of a portion of the system in the left ventricle.

9. The guiding introducer system of claim 8 wherein tip markers are secured to the inner guiding introducer.

10. A guiding introducer system for use in medical procedures within the left ventricle with a separate medical device comprising a precurved inner guiding introducer and a precurved outer guiding introducer, wherein said guiding introducers are used in combination and wherein the outer guiding introducer is formed in a predetermined, precurved shape which precurved shape assists in placement of a portion of the system in the left ventricle and wherein the inner guiding introducer comprises a first and second sections each with proximal and distal ends, wherein the first section is a generally elongated straight section, wherein merged with the distal end of said first section is the second section which contains a curved section with a radius of about 0.5 to about 1.5 in. to form an arc of approximately 45 to 135 degrees ending in the distal end of the second section of the inner guiding introducer.

11. The guiding introducer system of claim 10 wherein tip markers are secured to the inner guiding introducer.

12. A guiding introducer system for use in medical procedures within the left ventricle with a separate medical device comprising a precurved inner guiding introducer and a precurved outer guiding introducer, wherein said guiding introducers are used in combination and wherein the outer guiding introducer is formed in a predetermined, precurved shape which precurved shape assists in placement of a portion of the system in the left ventricle and wherein the outer guiding introducer comprises a first and second sections each with proximal and distal ends, wherein the first section is a generally elongated straight section, wherein merged with the distal end of said first section is the second section which contains a curved portion, curving in a radius of about 0.5 to about 1.5 in. to form an arc of about 145 to about 260 degrees, ending in the distal end of the second section of the outer guiding introducer.

13. The guiding introducer system of claim 12 wherein tip markers are secured to the inner guiding introducer.

14. The guiding introducer system of claim 12 wherein a plurality of vents is provided near the distal end of the second section of the inner guiding introducer.

15. A guiding introducer system for use in medical procedures within the left ventricle with a separate medical device comprising a precurved inner guiding introducer and a precurved outer guiding introducer, wherein said guiding introducers are used in combination and wherein the inner guiding introducer is formed in a predetermined, precurved shape which shape assists in placement of a portion of the system in the left ventricle and wherein the inner guiding introducer comprises a first and second sections each with proximal and distal ends, wherein the first section is a generally elongated straight section, wherein merged with the distal end of said first section is the second section which contains a curved section with a radius of about 0.5 to about 1.5 in. to form an arc of approximately 45 to 135 degrees ending in the distal end of the second section of the inner guiding introducer.

16. The guiding introducer system of claim 15 wherein tip markers are secured to the outer guiding introducer.

17. A guiding introducer system for use in medical procedures within the left ventricle with a separate medical device comprising a precurved inner guiding introducer and a precurved outer guiding introducer, wherein said guiding introducers are used in combination and wherein the inner guiding introducer is formed in a predetermined, precurved shape which shape assists in placement of a portion of the system in the left ventricle and wherein the outer guiding introducer comprises a first and second sections each with proximal and distal ends, wherein the first section is a generally elongated straight section, wherein merged with the distal end of said first section is the second section which contains a curved portion, curving in a radius of about 0.5 to about 1.5 in. to form an arc of about 145 to about 260 degrees, ending in the distal end of the second section of the outer guiding introducer.

18. The guiding introducer system of claim 17 wherein tip markers are secured to the outer guiding introducer.

19. The guiding introducer system of claim 17 wherein a plurality of vents is provided near the distal end of the second section of the inner guiding introducer.