Human tissue models, materials, and methods

Patent metadata

Field	Value
Publication number	US-9472123-B2
Application number	US-201313750842-A
Country	US
Kind code	B2
Filing date	Jan 25, 2013
Priority date	Jan 27, 2012
Publication date	Oct 18, 2016
Grant date	Oct 18, 2016

Abstract

Devices, systems, and methods appropriate for use in medical training that include materials that better mimic natural human tissue are disclosed. In one aspect, methods of forming multi-layer tissue simulations are provided. In another aspect, methods of forming a male genitalia model are provided. In another aspects, methods of forming an abdominal surgical wall insert are provided. Devices and systems associated with these methods are also provided.

First claim

What is claimed is:

1. A method of forming a multi-layer tissue simulation, the method comprising:
forming a simulated skin layer in a mold;
forming a simulated fat layer over the skin layer in the mold;
securing a simulated fascia layer to the simulated fat layer, wherein the simulated fascia layer comprises a sheet of fabric-like material and comprises a spunbonded olefin material;
forming a simulated muscle layer over the simulated fascia layer in the mold; and
forming a backing layer over the simulated muscle layer in the mold;
wherein the simulated fascia layer is secured to the simulated fat layer with a silicon adhesive.

2. The method of claim 1 , wherein the mold is sized and shaped such that the multi-layer tissue simulation represents a portion of at least one of gluteus tissue, deltoid tissue, and thigh tissue.

3. The method of claim 1 , wherein the simulated skin layer comprises a silicon material having a first hardness and the simulated fat layer comprises a silicon material having a second hardness, the second hardness being less than the first hardness.

4. The method of claim 3 , wherein the simulated fat layer comprises a silicon foam.

5. The method of claim 3 , wherein the simulated skin layer is cured prior to forming the simulated fat layer.

6. The method of claim 1 , wherein the simulated skin layer and the simulated muscle layer comprise a common silicon material.

7. The method of claim 1 , wherein the backing layer is pigmented to match the simulated skin layer.

8. The method of claim 1 , further comprising:
removing the multi-layer tissue simulation from the mold; and
inserting the multi-layer tissue simulation into an opening in a portion of a manikin.

9. A method of forming a simulated abdominal surgical wall insert, the method comprising:
forming peritoneum layer in a first mold;
positioning a first insert within the first mold;
forming a muscle layer within the first mold with the first insert positioned within the first mold;
removing the first insert from the first mold;
positioning a second insert within the first mold, the second insert being smaller than the first insert; and
forming a fascia layer within the mold with the second insert positioned within the first mold.

10. The method of claim 9 , further comprising:
forming a subcutaneous layer and a skin layer in a second mold; and
securing the subcutaneous layer and the skin layer formed in the second mold to the peritoneum layer, the muscle layer, and the fascia layer formed in the first mold.

11. The method of claim 10 , wherein securing the subcutaneous layer and the skin layer formed in the second mold to the peritoneum layer, the muscle layer, and the fascia layer formed in the first mold comprises: fixedly securing the fascia layer to the subcutaneous layer.

12. The method of claim 11 , wherein a silicon adhesive is utilized to secure the fascia layer to the subcutaneous layer.

Assignees

• Gaumard Scient Company Inc

Inventors

• Trotta Thomas Neil
• Trotta Jennifer Anne
• Lowe Siobhain

Classifications

• B29C39/123

  Making multilayered articles · CPC title

• G09B23/30 Primary

  Anatomical models {(G09B23/281 - G09B23/288 take precedence)} · CPC title

• B29C39/025

  for making multilayered articles · CPC title

• G09B23/34 Primary

  with removable parts · CPC title

• B29C39/10

  incorporating preformed parts or layers, e.g. casting around inserts or for coating articles {(coating a surface by casting in general B05D1/30, B29C39/126 takes precedence)} · CPC title