Materials and methods for improved intragastric balloon devices

• US 9,149,611 B2
• Filed: 02/08/2011
• Issued: 10/06/2015
• Est. Priority Date: 02/08/2010
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Reshape Medical, Inc. (ReShape LifeSciences, Inc.)
• Inventors: Bouasaysy, Outhit
• Primary Examiner(s): BUI, VY Q
• Application Number:
  US13/577,618
• Publication Number:
  US 20130060274A1
• Time in Patent Office: 1,701 Days
• Field of Search: 606/191, 606/192, 606/193, 606/194, 606/195, 606/198
• US Class Current: 1/1
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61F 5/0036 Intragastrical devices
• CPC Class Codes: A61L 31/10 Macromolecular materials
• CPC Class Codes: A61M 2025/1031 Surface processing of balloon members, e.g. coating or deposition; Mounting additional parts onto the balloon member's surface
• CPC Class Codes: A61M 2209/02 Equipment for testing the apparatus
• CPC Class Codes: A61M 25/1029 Production methods of the balloon members, e.g. blow-moulding, extruding, deposition or by wrapping a plurality of layers of balloon material around a mandril
• CPC Class Codes: A61M 29/02 Dilators made of swellable material balloon catheters for angioplasty A61M25/104
• CPC Class Codes: A61M 31/00 Devices for introducing or retaining media, e.g. remedies, in cavities of the body A61M25/00 takes precedence ; introducing or retaining ophthalmic products into the ocular cavities A61F9/0008
• CPC Class Codes: B29D 22/02 Inflatable articles
• CPC Class Codes: B29D 22/04 Spherical articles, e.g. balls B29D22/02 takes precedence
• CPC Class Codes: B29K 2083/00 Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as moulding material
• CPC Class Codes: B29K 2995/0046 Elastic
• CPC Class Codes: C08L 83/04 Polysiloxanes
• CPC Class Codes: Y10T 29/49828 Progressively advancing of work assembly station or assembled portion of work

Abstract

Disclosed is a balloon of an intragastric device, comprising, in combination: a core of a first material and having an inner surface and an outer surface; and a coating of a second material on at least one of the inner surface of the core and the outer surface of the core. Disclosed is a method, comprising, in combination: creating a core of a balloon by a core in a first material; dipping at least one of an inner surface of the core and an outer surface of the core in a second material, whereby a coating is formed on at least one of the inner surface of the core and the outer surface of the core. The first material may be of a more dimensional consistency than the second material, have a greater elasticity than the second material, or be primarily of polydimethyl-siloxane.

Claims

1. An intragastric balloon, comprising, in combination:

a core of a first material and having an inner surface and an outer surface; and

a coating of a second material on at least one of the inner surface of the core and the outer surface of the core, wherein the first material is more elastic than the second material and the second material has a lower permeability than the first material, and wherein the second material comprises polydiphenylsiloxane.

2. The intragastric balloon of claim 1, further comprising two cuffs configured to receive a shaft extended through the intragastric balloon.

3. The intragastric balloon of claim 1, wherein the first material is of a more dimensional consistency than the second material.

4. The intragastric balloon of claim 1, wherein the first material has a viscosity suitable for molding processes.

5. The intragastric balloon of claim 1, wherein the first material is primarily of polydimethylsiloxane.

6. The intragastric balloon of claim 5, wherein the second material has higher acid resistance than the first material.

7. The intragastric balloon of claim 1, wherein the second material is less permeable than the first material.

8. The intragastric balloon of claim 1, wherein the intragastric balloon has an expansion ratio of at least about 200% by diameter and at least about 500% by volume.

9. An intragastric device, comprising, in combination:

a shaft; and

at least a first balloon fixed to the shaft, the first balloon having a core of a first material and a coating of a second material, the second material comprising polydiphenylsiloxane, wherein the core has an inner surface and an outer surface, and the coating is on at least one of the inner surface of the core and the outer surface of the core, and wherein the first material comprises polydimethylsiloxane.