First entry model
First Claim
1. A simulated tissue structure, comprising:
- a support;
an artificial anatomical portion configured to simulate a region of an abdominal wall;
the anatomical portion being connected to the support such that the anatomical portion is penetrable from a first side to a second side of the anatomical portion;
the anatomical portion including a plurality of simulated tissue layers arranged in juxtaposition with each other;
the simulated tissue layers including a simulated skin layer located above the remaining layers;
each of the remaining layers having an opening extending through the layer;
the simulated skin layer having a top surface and a bottom surface;
the top surface of the simulated skin layer defines a first side of the anatomical portion;
a tubular structure having a proximal end and a distal opening at a distal end;
the distal end of the tubular structure extending through one or more openings in the remaining layers;
wherein one of the remaining layers includes a simulated peritoneum layer and a first layer;
the simulated peritoneum layer having a top surface and a bottom surface;
the bottom surface of the simulated peritoneum layer forming the second side of the anatomical portion;
the first layer having a top surface and a bottom surface;
the bottom surface of the first layer overlaying the top surface of the simulated peritoneum layer;
wherein the distal end of the tubular structure is connected to the first layer; and
wherein the proximal end of the tubular structure is connected to the simulated skin layer.
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Accused Products
Abstract
A simulated abdominal wall model that is ideal for practicing laparoscopic first entry surgical techniques is provided. The model includes a simulated abdominal wall portion captured between two frame elements of a support. The support is connectable to a surgical trainer. When connected to the trainer, the model provides a penetrable abdominal tissue portion for accessing an internal cavity of the trainer. The simulated abdominal wall includes a plurality of layers including a skin layer, a fabric posterior rectus sheath layer, a simulated fat layer of low-resilience polyurethane foam and at least two layers that provide distinctive haptic feedback upon penetration of the simulated transversalis fascia and muscle layers. The simulated abdominal wall includes a simulated umbilicus across several layers of simulated tissue.
289 Citations
22 Claims
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1. A simulated tissue structure, comprising:
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a support; an artificial anatomical portion configured to simulate a region of an abdominal wall;
the anatomical portion being connected to the support such that the anatomical portion is penetrable from a first side to a second side of the anatomical portion;
the anatomical portion including a plurality of simulated tissue layers arranged in juxtaposition with each other;
the simulated tissue layers including a simulated skin layer located above the remaining layers;
each of the remaining layers having an opening extending through the layer;
the simulated skin layer having a top surface and a bottom surface;
the top surface of the simulated skin layer defines a first side of the anatomical portion;
a tubular structure having a proximal end and a distal opening at a distal end;
the distal end of the tubular structure extending through one or more openings in the remaining layers;wherein one of the remaining layers includes a simulated peritoneum layer and a first layer;
the simulated peritoneum layer having a top surface and a bottom surface;
the bottom surface of the simulated peritoneum layer forming the second side of the anatomical portion;
the first layer having a top surface and a bottom surface;
the bottom surface of the first layer overlaying the top surface of the simulated peritoneum layer;wherein the distal end of the tubular structure is connected to the first layer; and wherein the proximal end of the tubular structure is connected to the simulated skin layer. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A simulated tissue structure configured to simulate an abdominal wall, comprising:
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a simulated skin layer having a top surface and a bottom surface; a simulated fat layer having a top surface and a bottom surface;
the bottom surface of the simulated skin layer overlaying the top surface of the simulated fat layer;a first simulated muscle layer having a top surface and a bottom surface; a second simulated muscle layer having a top surface and a bottom surface; a third layer having a top surface and a bottom surface;
the third layer being located between the first and second simulated muscle layers;a fourth layer having a top surface and a bottom surface; a fifth layer having a top surface and a bottom surface;
the bottom surface of the fourth layer overlaying the top surface of the fifth layer;a simulated peritoneum layer having a top surface and a bottom surface;
the bottom surface of the fifth layer overlaying the top surface of the simulated peritoneum layer;wherein the simulated skin layer is made of silicone and includes a tubular structure extending through one or more of the other layers;
the tubular structure having an opening at the proximal end that is closed. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A surgical simulation system, comprising:
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an abdominal wall model, including; a support; and an artificial anatomical portion configured to simulate a region of an abdominal wall;
the anatomical portion being connected to the support such that the anatomical portion is penetrable from a first side to a second side of the anatomical portion;
the anatomical portion including a plurality of simulated tissue layers arranged in juxtaposition with each other;
the simulated tissue layers including a simulated skin layer located above the remaining layers;
the simulated skin layer having a top surface and a bottom surface;
the top surface of the simulated skin layer defining a first side of the anatomical portion;a trainer, including; a base; a top cover having a top surface and a bottom surface;
the top cover being connected to and spaced apart from the base to define an internal cavity between the top cover and the base;
the top cover having a first opening;wherein the abdominal wall model is removably located inside the first opening;
the model being connected to the top cover such that penetration of the anatomical portion provides access to the internal cavity of the trainer; andfurther including a simulated tissue structure located inside the cavity; and
a thin layer located inside the internal cavity of the trainer between the anatomical portion and the simulated tissue structure.- View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification