Introducer for accessing the coronary sinus of a heart

• US 20030208141A1
• Filed: 05/06/2002
• Published: 11/06/2003
• Est. Priority Date: 05/06/2002
• Status: Active Grant

• Current Assignee: Pressure Products Medical Supplies Incorporated
• Original Assignee: Pressure Products Medical Supplies Incorporated
• Inventors: Kurth, Paul, Worley, Seth J.
• Granted Patent: US 7,462,184 B2
• Time in Patent Office: Days
• US Class Current: 600/585
• CPC Class Codes: A61M 2210/125 Heart
• CPC Class Codes: A61M 25/0041 pre-formed, e.g. specially adapted to fit with the anatomy of body channels urethral catheters A61F2/04

Abstract

The invention is defined as a precurved coronary sinus guiding introducer for use in a cardiomyopathic heart comprising a flexible elongated member with a proximal and distal end. The elongated member comprises a generally straight, proximal portion and a precurved distal portion. In one embodiment the proximal portion and distal portion are formed to lie is a common plane. In another embodiment the portions are angulated with respect to each other in different planes. The precurved distal portion comprises at least one curved subportion and at least one curved or straight subportion. The precurved distal subportion curves through a generally circular arc away and is defined by a chord of predetermined length. The precurved distal subportion has a predetermined height above the chord. The curved or straight subportion is the distal section of the precurved distal portion.

Claims

1. A precurved coronary sinus guiding introducer for use in a heart comprising:

a flexible elongated member with a proximal and distal end, wherein the elongated member comprises a generally straight, proximal portion and a precurved distal portion, the proximal portion and distal portion formed to lie in a common plane,

wherein the precurved distal portion comprises at least one curved subportion and at least one curved or straight subportion, the precurved distal subportion curving through a generally circular arc defined by a chord of predetermined length and the precurved distal subportion has a predetermined height from the chord, and the curved or straight subportion being the distal section of the precurved distal portion.

2. The coronary sinus guiding introducer of claim 1 further comprising a lumen extending through the member from the proximal to the distal end.

3. The coronary sinus guiding introducer of claim 1 wherein the member is solid and is used as a dilator for use in combination with a catheter.

4. The coronary sinus guiding introducer of claim 1 wherein the chord has the predetermined length of approximately 3.5 to 7 inches.

5. The coronary sinus guiding introducer of claim 1 wherein the predetermined height above the chord is approximately 2.5 inches to 4.0 inches.

6. The coronary sinus guiding introducer of claim 4 wherein the chord has the predetermined length of approximately 5.5 inches.

7. The coronary sinus guiding introducer of claim 5 wherein the predetermined height above the chord is approximately 2.5 inches.

8. The coronary sinus guiding introducer of claim 1 wherein the curved or straight subportion is approximately 0.5 to 4.5 inches in length.

9. The coronary sinus guiding introducer of claim 8 wherein the curved or straight subportion is approximately 2.5 inches in length.

10. The coronary sinus guiding introducer of claim 1 wherein the member has an inside diameter of 9 French.

29. The coronary sinus guiding introducer of claim 1 wherein the precurved distal subportion is comprised of two curved portions and two straight portions in alternating sequence with a distal one of the two straight portions leading to the distal end.

30. The coronary sinus guiding introducer of claim 29 where the two curved portions comprise a proximal curved portion having a radius of curvature of approximately 2.0 to 2.85±

0.25 inches and a distal curved portion having a radius of curvature of approximately 1.25 to 2.0±

0.25 inches.

31. The coronary sinus guiding introducer of claim 1 wherein the precurved distal subportion is further comprised of three curved portions and the curved or straight portion leading to the distal end, the three curved portions each having a different radius of curvature with the portion having the largest radius of curvature being between the other two curved portions.

11. A precurved coronary sinus guiding introducer for use in a heart comprising:

a flexible elongated member with a proximal and distal end, wherein the elongated member comprises a generally straight, proximal portion and a precurved distal portion, the proximal portion and distal portion formed to lie is a common plane,

wherein the precurved distal portion comprises at least one curved subportion and at least one curved or straight subportion, the precurved distal subportion curving through a generally circular arc away from the proximal portion and forming an arc defined by a chord of predetermined length and the precurved distal subportion has a predetermined height above the chord, and the curved or straight subportion being the distal section of the precurved distal portion, wherein the chord has the predetermined length of approximately 3.5 to 7 inches, wherein the predetermined height above the chord is approximately 2.5 inches to 4.0 inches, and wherein the curved or straight subportion is approximately 0.5 to 4.5 inches in length.

12. The coronary sinus guiding introducer of claim 11 further comprising a lumen extending through the member from the proximal to the distal end.

13. The coronary sinus guiding introducer of claim 12 wherein the member is solid and is used as a dilator for use in combination with a catheter.

14. The coronary sinus guiding introducer of claim 11 wherein the chord has the predetermined length of approximately 5.5 inches.

15. The coronary sinus guiding introducer of claim 11 wherein the predetermined height above the chord is approximately 2.5 inches.

16. The coronary sinus guiding introducer of claim 11 wherein the curved or straight subportion is approximately 2.5 inches in length.

17. The coronary sinus guiding introducer of claim 11 wherein the member has an inside diameter of 9 French.

18. A precurved coronary sinus guiding introducer for use in a heart comprising:

a flexible elongated member with a proximal and distal end, wherein the elongated member comprises a generally straight, proximal portion and a precurved distal portion,

wherein the precurved distal portion comprises at least one curved subportion lying in a first plane and at least one curved or straight subportion lying in a second plane, the precurved distal subportion curving through a generally circular arc defined by a chord of predetermined length and the precurved distal subportion has a predetermined height above the chord, and the curved or straight subportion being the distal section of the precurved distal portion, the first and second planes being inclined with respect to each other by approximately 30 to 40°

.

19. The coronary sinus guiding introducer of claim 18 where the generally curved or straight, proximal portion lies in a third plane inclined with respect to the first plane by approximately 30 to 40°

.

20. The coronary sinus guiding introducer of claim 19 further comprising a lumen extending through the member from the proximal to the distal end.

21. The coronary sinus guiding introducer of claim 19 wherein the member is solid and is used as a dilator for use in combination with a catheter.

22. The coronary sinus guiding introducer of claim 19 wherein the chord has the predetermined length of approximately 3.5 to 7 inches.

23. The coronary sinus guiding introducer of claim 19 wherein the predetermined height above the chord is approximately 2.5 inches to 4.0 inches.

24. The coronary sinus guiding introducer of claim 22 wherein the chord has the predetermined length of approximately 5.5 inches.

25. The coronary sinus guiding introducer of claim 23 wherein the predetermined height above the chord is approximately 2.5 inches.

26. The coronary sinus guiding introducer of claim 19 wherein the curved or straight subportion is approximately 0.5 to 4.5 inches in length.

27. The coronary sinus guiding introducer of claim 26 wherein the curved or straight subportion is approximately 2.5 inches in length.

28. The coronary sinus guiding introducer of claim 19 wherein the member has an inside diameter of 9 French.