Ex-vivo anatomic tissue specimen wound closure simulation model
AssigneeEthicon, Inc.
InventorsJohn Matonick, Matthew Pfefferkorn
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Abstract
A novel system and apparatus for testing surgical fastening devices in an ex-vivo body wall wound closure simulation device is disclosed. The system is particularly useful with simulating abdominal wall wound closure. The system has a body wall curvature approximator device, a tissue fixation system, and a tissue support and tensioner device. The system provides for anatomically correct presentation and tensioning on body wall tissue specimens for ex-vivo wound closure simulation. The system may also be used for other anatomic tissue specimens in addition to body walls.
Claims33
An ex vivo anatomic tissue specimen simulation system, comprising:
- a tissue specimen curvature approximator device for a tissue specimen comprising an approximator member, the approximator member having opposed ends, a top surface having a curvature, and a bottom surface, wherein the curvature of the top surface corresponds to the curvature of a tissue specimen in vivo;
- and, a support structure mounted to the member;
- a tissue fixation system, comprising a pin rail, the pin rail having an elongated member with a plurality of tissue engagement pins mounted on a surface;
- and,
- a receiver rail for engaging the pin rail, the receiver rail having an elongated receiver rail member with at least one standoff member and at least one guide pin, and a groove along at least part of the length of the elongated member for receiving distal ends of the tissue engagement pins;
- and,
- a tissue support and tensioner device for receiving at least a part of the tissue fixation system, comprising at least one tissue support member having a curvature, the curvature corresponding to the curvature of a tissue specimen in vivo, a pair of end plate members mounted to the ends of the tissue support member, a pair of tensioning arms pivotally mounted to each plate member, and members extending from the lateral ends of the tensioning arms to receive at least a section of the receiver rail.
An ex vivo anatomic tissue specimen simulation system, comprising:
- a tissue fixation system, comprising a pin rail, the pin rail having an elongated member with a plurality of tissue engagement pins mounted on a surface;
- and,
- a receiver rail for engaging the pin rail, the receiver rail having an elongated receiver rail member with at least one standoff member and at least one guide pin, and a groove along at least part of the length of the elongated member for receiving distal ends of the tissue engagement pins;
- and,
- a tissue support and tensioner device for receiving at least a part of the tissue fixation system, comprising at least one tissue support member having a curvature, the curvature corresponding to the curvature of a tissue specimen in vivo, a pair of end plate members mounted to the ends of the tissue support member, a pair of tensioning arms pivotally mounted to each plate member, and members extending from the lateral ends of the tensioning arms to receive at least a section of the receiver rail.
Dependencies are inferred from the claim text.