Tissue support structure

Patent metadata

Field	Value
Publication number	US-9539082-B2
Application number	US-201013511690-A
Country	US
Kind code	B2
Filing date	Nov 24, 2010
Priority date	Nov 24, 2009
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

An apparatus includes a component having a shape memory material. The shape memory material has a first shape including a substantially elongate segment. The shape memory material has a second shape including a helix having a first ring and a second ring configured to exert a compressive force on a membrane interleaved between the first ring and the second ring and lying in a plane substantially perpendicular to an axis of the helix, the shape selectable based on an external stimulus.

First claim

The claimed invention is:

1. An apparatus, comprising:
a component including:
a first structure including a distinct geometric shape;
a second structure including a distinct geometric shape opposing the first structure; and
a link disposed between the first structure and the second structure, the link being a hinge or folded portion of a material;

wherein the component is configured to transform between a first configuration and a second configuration;
wherein the first configuration includes the component being rolled so to have a tube-like shape and the second configuration includes the component being unfurled; and
wherein in the second configuration, the component is configured to exert a compressive force on a membrane interleaved between the first structure and the second structure.

2. The apparatus of claim 1 , wherein:
each of the first structure and the second structure includes a textured surface configured to bond to the membrane.

3. The apparatus of claim 2 , wherein the textured surface includes a plurality of bumps, ridges or rings.

4. The apparatus of claim 1 , wherein:
the distinct geometric shape of the first structure and the distinct geometric shape of the second structure are substantially similar.

5. The apparatus of claim 1 , wherein the link is configured to cause the component to transform between the first configuration and the second configuration when activated by an external stimulus.

6. The apparatus of claim 5 , wherein the external stimulus includes at least one of thermal energy, an electric field, a magnetic field, a light, or a pH level.

7. The apparatus of claim 1 , wherein the component includes a latch disposed on the first structure and spaced apart from the link, the latch being configured to engage the second structure.

8. The apparatus of claim 1 , wherein:
the first structure and the second structure includes a shape memory material; and
the material of the link is the shape memory material.

9. The apparatus of claim 8 , wherein the material includes at least one of a metal alloy or a polymer.

10. The apparatus of claim 1 , wherein the geometric shape includes at least one of a circle, a square, a rectangle, an ellipse, an oblong, or a polygon.

11. An apparatus, comprising:
a component including a shape memory material, the component including:
a first structure being a flattened ring;
a second structure being a flattened ring and opposing the first structure;
a link coupled to the first structure and the second structure, the link being a hinge or folded portion of the material; and
a latch disposed on the first structure and spaced apart from the link, the latch being configured to engage the second structure;

wherein:
the first structure and the second structure are configured to be in a clamping configuration;
in the clamping configuration, the first structure and the second structure are configured to exert a compressive force on a membrane interleaved between the first structure and the second structure and lying in a plane substantially parallel to the first structure and second structure; and
the latch is configured to retain the clamping configuration.

12. The apparatus of claim 11 , wherein each of the first structure and the second structure includes a textured surface configured to bond to the membrane.

13. The apparatus of claim 12 , wherein the textured surface includes a plurality of bumps, ridges or rings.

14. The apparatus of claim 11 , wherein:
the component is configured to transform between the clamping configuration and a configuration in which the first structure and the second structure are retained by the latch when activated by an external stimulus, and
the external stimulus includes at least one of thermal energy, an electric field, a magnetic field, a light, or a pH level.

15. The apparatus of claim 11 , wherein the shape memory material includes at least one of a metal alloy or a polymer.

Assignees

• Olsen Timothy W
• Rosen David W
• Melkote Shreyes N
• Mathai George K
• Univ Emory
• Georgia Tech Res Inst

Inventors

• Olsen Timothy W
• Rosen David W
• Melkote Shreyes N
• Mathai George K

Classifications

• A61F9/00727 Primary

  Apparatus for retinal reattachment · CPC title

• C08L2201/12

  Shape memory · CPC title

• A61L2400/16

  Materials with shape-memory or superelastic properties · CPC title

• A61F2210/0019

  operated at only one temperature whilst inside or touching the human body, e.g. constrained in a non-operative shape during surgery, another temperature only occurring before the operation · CPC title

• A61F2/02 Primary

  Prostheses implantable into the body · CPC title