Medical device systems

• US 8,043,259 B2
• Filed: 05/24/2004
• Issued: 10/25/2011
• Est. Priority Date: 05/24/2004
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Inventors: Wu, Show-Mean, Radisch, Herbert R. Jr., Chen, Fuh-Sheng
• Primary Examiner(s): Lucchesi; Nicholas D
• Assistant Examiner(s): PATEL, PRITESH ASHOK
• Application Number:
  US10/852,631
• Publication Number:
  US 20050261721A1
• Time in Patent Office: 2,710 Days
• Field of Search: 604/96.01, 604/192
• US Class Current: 604/103.08
• CPC Class Codes: A61B 17/320725 with radially expandable cutting or abrading elements A61B17/32075 takes precedence
• CPC Class Codes: A61B 2017/22061 for spreading elements apart
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61L 2400/12 Nanosized materials, e.g. nanofibres, nanoparticles, nanowires, nanotubes; Nanostructured surfaces
• CPC Class Codes: A61L 29/126 having a macromolecular matrix
• CPC Class Codes: A61M 25/10 Balloon catheters A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02; inflatable balloons for placing stents or stent-grafts A61F2/958 ; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00

Abstract

Medical device systems and related methods are disclosed.

Claims

1. A system, comprising:

an expandable medical balloon having a wall formed of a polymeric material and a plurality of particles uniformly dispersed within the polymeric material;

wherein the plurality of particles comprise a material selected from the group consisting of fumed silica, carbon black and combinations thereof;

wherein the plurality of particles are treated to provide surfaces of the plurality of particles with a functional group that covalently bonds the plurality of particles to the polymeric material within the wall of the balloon.

2. The system of claim 1, wherein the plurality of particles are coated with a coupling agent.

3. The system of claim 1, wherein the surface of each of the plurality of particles is plasma-treated.

4. The system of claim 1, wherein the polymeric material is selected from the group consisting of polyesters, polyamides, polyurethanes, polycarbonates, polyolefins, and combinations thereof.

5. The system of claim 1, wherein the polymeric material is selected from the group consisting of ionomers, elastomers, and combinations thereof.

6. The system of claim 1, wherein the wall comprises at most about 50 weight percent of the plurality particles.

7. The system of claim 1, wherein the polymeric material comprises a plurality of polymers.

8. The system of claim 1, wherein the wall comprises multiple layers.

9. The system of claim 1, further comprising a cutting element attached to the wall of the medical balloon.