# US 9,750,506 B2 · Occluding device for occlusion of a body vessel and method for making the same

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 9,750,506 B2
- Document ID: US9750506B2
- Status: Granted
- Kind: B2
- Application number: 14/503,864
- Filed: 2014-10-01
- Published: 2015-01-15
- Granted: 2017-09-05
- Earliest claimed: 2008-07-01
- Assignees: Cook Medical Technologies LLC
- Applicants: Cook Medical Technologies LLC
- Inventors: Gary Bradford Shirley; Sanket Nayanbhai Patel
- Web page: https://patentgrep.com/patent/US9750506B2

## CPC

- A61B 17/1215: {comprising additional materials, e.g. thrombogenic, having filaments, having fibers, being coated}
- A61B 17/12022: {Occluding by internal devices, e.g. balloons or releasable wires (plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20)}
- A61B 17/12145: {having a pre-set deployed three-dimensional shape (methods of manufacturing A61B2017/00526)}
- A61B 50/30: Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments (for wound clamps A61B17/10; for ligaturing clips A61B17/122; packages or dispensers for surgical gloves or finger-stalls A61B42/40)
- A61B 2017/00526: {Methods of manufacturing}
- A61B 2017/1205: {Introduction devices}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

In at least one embodiment of the present invention, a method for making an occluding device for occlusion of fluid flow through a lumen of a body vessel is provided. The method comprises attaching a coating to an embolization coil that is substantially straight. The coating is nominally strained on the substantially straight embolization coil. The embolization coil has a pre-curled tension to facilitate the embolization coil being curled within the lumen of the body vessel when deployed. The embolization coil is restrained from curling until deploying to reduce pre-deployment straining of the coating.

## Claims

### Claim 1

A method for making an occluding device for occlusion of fluid flow through a lumen of a body vessel, the method comprising:
attaching a coating to an embolization coil that is substantially straight, the coating being nominally strained thereon and the embolization coil having a pre-curled tension to facilitate the embolization coil to be curled within the lumen of the body vessel when deployed; and
constantly restraining the embolization coil from curling during and after attaching the coating until delivering the coil within the body vessel to reduce pre-deployment straining of the coating including containing a stylet wire within the embolization coil, the stylet wire being substantially straight to restrain the embolization coil from curling.

### Claim 2 (depends on 1)

The method according to claim 1 wherein the coating comprises small intestinal submucosa (SIS).

### Claim 3 (depends on 1)

The method according to claim 1 wherein the embolization coil has a lumen formed therethrough and the step of containing the stylet wire includes containing the stylet wire within the lumen of the embolization coil.

### Claim 4 (depends on 3)

The method according to claim 3 further comprising advancing the stylet wire through the lumen of the embolization coil to straighten the embolization coil prior to the step of attaching the coating.

### Claim 5 (depends on 3)

The method according to claim 3 wherein the step of restraining the embolization coil further includes introducing the embolization coil into a microcatheter subsequent to the step of attaching the coating, the microcatheter being configured to restrain the embolization coil from curling and to deploy the embolization coil.

### Claim 6 (depends on 5)

The method according to claim 5 wherein the step of restraining the embolization coil further includes removing the stylet wire from the lumen of the embolization coil, the embolization coil being restrained from curling via the microcatheter.

### Claim 7 (depends on 1)

The method according to claim 1 wherein the step of attaching the coating includes coating the embolization coil with small intestinal submucosa (SIS) gel comprising SIS and water, and drying the SIS gel to form the coating.