# US 9,517,159 B2 · Occlusion implant

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- Number: US 9,517,159 B2
- Document ID: US9517159B2
- Status: Granted
- Kind: B2
- Application number: 13/742,279
- Filed: 2013-01-15
- Published: 2013-07-25
- Granted: 2016-12-13
- Earliest claimed: 2008-11-11
- Assignees: Bayer HealthCare LLC
- Applicants: Conceptus, Inc.
- Inventors: John R. Frigstad; William S. Tremulis; James R. Mujwid; Betsy Swann
- Web page: https://patentgrep.com/patent/US9517159B2

## CPC

- A61F 6/20: Vas deferens occluders; Fallopian occluders
- A61B 17/12031: {complete occlusion}
- A61B 17/12099: {characterised by the location of the occluder}
- A61B 17/12145: {having a pre-set deployed three-dimensional shape (methods of manufacturing A61B2017/00526)}
- A61F 6/22: implantable in tubes {(occluding by internal devices A61B17/12022)}
- A61F 6/225: {transcervical}
- A61B 2017/1205: {Introduction devices}
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

Contraceptive and/or sterilization methods and devices are disclosed which may improve the speed of tubal occlusion and mechanisms for anchoring for a contraceptive device. In accordance with some embodiments, improvements may be made to the delivery catheter to induce trauma and create faster tubal occlusion, improvements may be made to the occlusion device to prevent migration and induce trauma, and improvements may be made to the occlusion device to reduce the total volume of in-growth required compared to conventional expansive occlusion devices.

## Claims

### Claim 1

A fallopian tube occlusion system comprising:
a catheter that is sized and shaped to be inserted through a cervix, into a uterus, and guided into a fallopian tube through a tubal ostium; and
an occlusion device including an open walled frame that forms a closed loop path and is characterized by levels of cutbacks with substantially rounded edges, wherein a width of the occlusion device progressively widens down the levels of the cutbacks:
wherein the frame is constrained within the catheter in a rolled up tubular configuration, and when expelled from the catheter within the fallopian tube opposite side edges of the frame spread out in a plane and the frame assumes a substantially flat configuration within the fallopian tube entirely across x-y dimensions in the plane such that the frame stretches the fallopian tube in one direction, and opposite sides of the fallopian tube are brought into closer proximity to one another;
wherein opposite side edges of the frame expand from the rolled up tubular configuration to the substantially flat configuration to have a wavy profile.

### Claim 2 (depends on 1)

The fallopian tube occlusion system of claim 1, wherein the opposite side edges are wavy edges designed to engage a tubal wall of the fallopian tube.

### Claim 3 (depends on 2)

The fallopian tube occlusion system of claim 2, further comprising a tissue in-growth material.

### Claim 4 (depends on 1)

The fallopian tube occlusion system of claim 1, wherein the opposite side edges of the frame expand after being expelled from the catheter.

### Claim 5 (depends on 1)

The fallopian tube occlusion system of claim 1, further comprising a tissue in-growth member that includes at least one of polyethylene terephthalate (PET), silk, and nylon fibers.

### Claim 6 (depends on 1)

The fallopian tube occlusion system of claim 1, wherein said open walled frame comprises at least three staggered levels of cutbacks.

### Claim 7 (depends on 1)

The fallopian tube occlusion system of claim 1, wherein the opposite side edges of the frame run along an axial length of the catheter when the frame is in the rolled up tubular configuration.

### Claim 8 (depends on 1)

The fallopian tube occlusion system of claim 1, wherein the rolled up tubular configuration of the frame is characterized by a transverse cross section width, and the substantially flat configuration is characterized by a transverse width between the opposite side edges that is greater than the transverse cross section width.