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US 8,434,489 B2Granted
Contraceptive devices and methods
AssigneeConceptus, Inc.
InventorsVidya Gopal, Christopher Stout, Betsy Swann
Life of this patent
Estimating the term…
Abstract
Contraceptive devices that provide substantially immediate and permanent sterilization are described herein. Systems and methods for transcervically delivering the contraceptive devices are also described herein. The contraceptive device may include an expandable implant. The implant includes hydrogel to provide substantially immediate sterilization, and tissue in-growth fibers to provide permanent sterilization. As an alternative or in combination to hydrogel, the implant may include copper or cupric ions to provide substantially immediate sterilization. The implant may also include hydrogel to improve trackability of the implant through an ovarian pathway.
Claims49
A system for occluding a tubular body lumen comprising:
- a deployment sheath;
- an occlusion device at least partially disposed within the deployment sheath, the occlusion device comprising:
- an expandable implant having a proximal end and a distal end, wherein a portion of the expandable implant comprises hydrogel;
- and
- tissue in-growth promoting agent on the expandable implant, wherein the expandable implant comprises an outer coil, an inner coil, a flexible tip, a distal solder joint connecting the outer coil, inner coil and flexible tip at the distal end and a detachable release joint at the proximal end;
- and
- a hydrophobic material at a distal end of the deployment sheath, wherein the distal end of the occlusion device extends beyond the distal end of the deployment sheath while the hydrophobic material protects the hydrogel from swelling upon exposure of the distal end of the deployment sheath to a physiological environment, and the hydrophobic material is pierceable by the occlusion device to deliver the occlusion device through the distal end of the deployment sheath.
4 more elements
A system for occluding a tubular body lumen comprising:
- a deployment sheath;
- an occlusion device at least partially disposed within the deployment sheath, the occlusion device comprising:
- an inner coil;
- an expandable outer coil;
- a flexible tip;
- a distal joint connecting the outer coil, inner coil and flexible tip;
- a detachable release joint;
- tissue in-growth promoting fibers between the inner coil and the expandable outer coil;
- and
- wherein one or more of the flexible tip, distal joint or detachable release joint comprises hydrogel;
- and
- a hydrophobic material at a distal end of the deployment sheath, wherein the distal end of the occlusion device extends beyond the distal end of the deployment sheath while the hydrophobic material protects the hydrogel from swelling upon exposure of the distal end of the deployment sheath to a physiological environment, and the hydrophobic material is pierceable by the occlusion device to deliver the occlusion device through the distal end of the deployment sheath.
9 more elements
A system for delivering an implant to a tubular body lumen comprising:
- a delivery catheter having a distal end and a proximal end;
- an expandable implant releasably coupled with the delivery catheter, the expandable implant comprising hydrogel and tissue ingrowth fibers;
- and
- a hydrophobic material at a distal end of the delivery catheter, wherein a distal end of the expandable implant extends beyond the distal end of the delivery catheter while the hydrophobic material protects the hydrogel from swelling upon exposure of the distal end of the delivery catheter to a physiological environment, and the hydrophobic material is pierceable by the expandable implant to deliver the expandable implant through the distal end of the delivery catheter.
1 more element
A method of delivering an expandable implant to a tubular body lumen comprising:
- delivering a catheter to an ovarian pathway, the catheter having an expandable implant releasably coupled with the catheter, the expandable implant comprising hydrogel and tissue ingrowth promoting fibers, wherein a hydrophobic material is at a distal end of the catheter, and a distal end of the expandable implant extends beyond the distal end of the catheter while the hydrophobic material protects the hydrogel from swelling upon exposure of the distal end of the catheter to a physiological environment in the ovarian pathway;
- piercing the hydrophobic material with the expandable implant;
- pushing the expandable implant through the hydrophobic material and through the distal end of the catheter;
- and
- expanding the expandable implant in the ovarian pathway.
2 more elements
A system for occluding a tubular body lumen comprising:
- a deployment sheath;
- an occlusion device at least partially disposed within the deployment sheath, the occlusion device comprising:
- a primary coil structure having an outer coil and an inner coil coaxial with the outer coil, the primary coil structure being laterally flexible, the outer coil bring self expandable from a constrained configuration;
- a non-traumatic tip attached to the primary coil structure at a distal joint;
- tissue in-growth promoting fibers disposed between the outer coil and the inner coil;
- and
- hydrogel disposed adjacent to the distal joint;
- and
- a hydrophobic material at a distal end of the deployment sheath, wherein a distal end of the occlusion device extends beyond the distal end of the deployment sheath while the hydrophobic material protects the hydrogel from swelling upon exposure of the distal end of the deployment sheath to a physiological environment, and the hydrophobic material is pierceable by the occlusion device to deliver the occlusion device through the distal end of the deployment sheath.
6 more elements
Dependencies are inferred from the claim text.