BIOMATERIAL

• US 20160184075A1
• Filed: 03/09/2016
• Published: 06/30/2016
• Est. Priority Date: 06/20/2008
• Status: Active Application

• Current Assignee: Coloplast A/S
• Original Assignee: Coloplast A/S
• Inventors: KUMAR, Ashutosh, BEHAN, Niall
• Application Number:
  US15/065,515
• Publication Number:
  US 20160184075A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61F 2/04 Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts A61F2/18, A61F2/20 take precedence; devices, other than stent-grafts, providing patency to, or preventing collapsing of, tubular structures of the body other than stent-grafts, e.g. stents A61F2/82; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95
• CPC Class Codes: A61F 2002/044 Oesophagi or esophagi or gullets
• CPC Class Codes: A61F 2002/045 Stomach, intestines
• CPC Class Codes: A61F 2230/0069 cylindrical
• CPC Class Codes: A61L 27/18 obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: A61L 27/56 Porous materials, e.g. foams or sponges
• CPC Class Codes: A61M 39/22 Valves or arrangement of valves A61M39/02, A61M39/0247, A61M39/16 take precedence; regulating valves in infusion systems A61M5/16881; in devices worn by the patient for the reception of urine, faeces, catamenial or other discharge, or in colostomy devices A61F5/4405
• CPC Class Codes: C08G 18/5096 containing silicon
• CPC Class Codes: C08G 18/61 Polysiloxanes
• CPC Class Codes: C08G 18/6535 Compounds of group C08G18/3271
• CPC Class Codes: C08G 2110/0008 flexible
• CPC Class Codes: C08G 2110/0083 prepared using water as the sole blowing agent
• CPC Class Codes: C08G 77/388 containing nitrogen
• CPC Class Codes: C08G 77/445 containing polyester sequences
• CPC Class Codes: C08G 77/448 containing polycarbonate sequences
• CPC Class Codes: C08G 77/458 containing polyurethane sequences
• CPC Class Codes: C08G 77/46 containing polyether sequences
• CPC Class Codes: C08L 83/10 Block- or graft-copolymers containing polysiloxane sequences obtained by polymerising a compound having a carbon-to-carbon double bond on to a polysiloxane C08L51/08, C08L53/00

Abstract

The present invention provides a triblock copolymer and a viscoelastic biostable foam comprising the same.

Claims

1. A medical device for placement in a gastrointestinal tract, the device comprising:

—

a valve member comprising a biomimetic viscoelastic polymeric foam material, the valve member having a proximal outer support region with a rim;

at least four valve leaflets;

a main body region extending between the support rim and the valve leaflets, the main body region having a generally concave outer face and a generally convex inner face the valve member having a normally closed configuration in which the leaflets are engaged at a region of co-aption of the valve leaflets and an open configuration;

the main body region of the valve member having a first thickness, the valve leaflets at the region of co-aption having a second thickness which is greater than the first thickness to define a reinforced region which extends in a longitudinal direction; and

a support member which is configured to engage with a wall of the gastrointestinal tract, the rim of the valve being mounted to the support member.