Deployment actuation system

• US 8,381,733 B2
• Filed: 11/11/2011
• Issued: 02/26/2013
• Est. Priority Date: 08/23/1999
• Status: Expired due to Fees

• Current Assignee: Bayer Healthcare LLC (Bayer AG)
• Original Assignee: Conceptus Incorporated (Bayer AG)
• Inventors: Lowe, Christian, Gurskis, Don, Khera, Ashish, Barnhart, Monica, Bacich, Steven, Swann, Betsy, Silva-Torres, Roberto
• Primary Examiner(s): Brown, Michael A.
• Application Number:
  US13/294,749
• Publication Number:
  US 20120078230A1
• Time in Patent Office: 473 Days
• Field of Search: 128830-841
• US Class Current: 128/830
• CPC Class Codes: A61B 2017/2923 Toothed members, e.g. rack and pinion
• CPC Class Codes: A61B 2017/2929 with a head rotatable about the longitudinal axis of the shaft
• CPC Class Codes: A61B 2017/2943 Toothed members, e.g. rack and pinion
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 6/18 Inserters or removers ; Apparatus for loading an intra-uterine device into an insertion tube
• CPC Class Codes: A61F 6/225 transcervical

Abstract

Contraceptive methods, systems, and devices generally improve the ease, speed, and reliability with which a contraceptive device can be deployed transcervically into an ostium of a fallopian tube. The contraceptive device may remain in a small profile configuration while a sheath is withdrawn proximally, and is thereafter expanded to a large profile configuration engaging the surrounding tissues, by manipulating one or more actuators of a proximal handle with a single hand. This leaves the other hand free to manipulate a hysteroscope, minimizing the number of health care professional required to deploy the contraceptive device.

Claims

1. A catheter system comprising:

an outer sheath housing a first coil;

a hydrophilic coating on an outer surface of the outer sheath;

a guiding structure disposed within the outer sheath, the guiding structure comprising a proximal portion and a distal portion, the distal portion including a second coil and a core shaft coaxially disposed within the second coil;

wherein the outer sheath and the guiding structure are configured to be advanced together within a body lumen such that the distal portion of the guiding structure extends distally from the outer sheath during advancement.

2. The catheter system of claim 1, wherein the outer sheath and the guiding structure are configured to be releasably locked together such that the distal portion of the guiding structure extends a fixed distance distally from the outer sheath during advancement.

3. The catheter system of claim 1, wherein the core shaft is tapered.

4. The catheter system of claim 1, wherein the first coil is metallic.

5. The catheter system of claim 1, further comprising an atraumatic tip at a distal end of the guiding structure.

6. The catheter system of claim 1, wherein the core shaft comprises a metallic structure.

7. The catheter system of claim 1, wherein the first coil is constrained between an outer layer and an inner layer.

8. The catheter system of claim 7, wherein the inner layer comprises PTFE.

9. The catheter system of claim 1, wherein a distal portion of the outer sheath includes a first segment and a second segment distal to the first segment, wherein the second segment is more flexible than the first segment.

10. The catheter system of claim 1, further comprising a radiopaque visualization marker.

11. A catheter system comprising:

an outer sheath housing a first coil, wherein a distal portion of the outer sheath includes a first segment and a second segment distal to the first segment, wherein the second segment is more flexible than the first segment;

a guiding structure disposed within the outer sheath, the guiding structure comprising a proximal portion and a distal portion, the distal portion including a second coil and a core shaft coaxially disposed within the second coil;

wherein the outer sheath and the guiding structure are configured to be advanced together within a body lumen such that the distal portion of the guiding structure extends distally from the outer sheath during advancement.

12. The catheter system of claim 11, wherein the outer sheath and the guiding structure are configured to be releasably locked together such that the distal portion of the guiding structure extends a fixed distance distally from the outer sheath during advancement.

13. The catheter system of claim 11, wherein the core shaft is tapered.

14. The catheter system of claim 11, wherein the first coil is metallic.

15. The catheter system of claim 11, further comprising an atraumatic tip at a distal end of the guiding structure.

16. The catheter system of claim 11, wherein the core shaft comprises a metallic structure.

17. The catheter system of claim 11, wherein the first coil is constrained between an outer layer and an inner layer.

18. The catheter system of claim 17, wherein the inner layer comprises PTFE.

19. The catheter system of claim 11, further comprising a radiopaque visualization marker.

26. The catheter system of claim 11, further comprising a radiopaque visualization marker.

20. A catheter system comprising:

an outer sheath comprising an outer layer, an inner layer comprising PTFE, and a first coil constrained between the outer layer and the inner layer;

a guiding structure disposed within the outer sheath, the guiding structure comprising a proximal portion and a distal portion, the distal portion including a second coil and a core shaft coaxially disposed within the second coil;

wherein the outer sheath and the guiding structure are configured to be advanced together within a body lumen such that the distal portion of the guiding structure extends distally from the outer sheath during advancement.

21. The catheter system of claim 20, wherein the outer sheath and the guiding structure are configured to be releasably locked together such that the distal portion of the guiding structure extends a fixed distance distally from the outer sheath during advancement.

22. The catheter system of claim 20, wherein the core shaft is tapered.

23. The catheter system of claim 20, wherein the first coil is metallic.

24. The catheter system of claim 20, further comprising an atraumatic tip at a distal end of the guiding structure.

25. The catheter system of claim 20, wherein the core shaft comprises a metallic structure.