# US 12,217,625 B2 · Simulated dissectible tissue > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,217,625 B2 - Document ID: US12217625B2 - Status: Granted - Kind: B2 - Application number: 16/922,184 - Filed: 2020-07-07 - Published: 2020-10-22 - Granted: 2025-02-04 - Earliest claimed: 2015-11-20 - Assignees: Applied Medical Resources Corporation - Applicants: Applied Medical Resources Corporation - Inventors: Katie Black; Natasha Felsinger; Tracy Breslin; Gregory K. Hofstetter - Web page: https://patentgrep.com/patent/US12217625B2 ## CPC - G09B 23/30: Anatomical models {(G09B23/281 - G09B23/288 take precedence)} - G09B 23/285: {for injections, endoscopy, bronchoscopy, sigmoidscopy, insertion of contraceptive devices or enemas} - G09B 23/34: with removable parts - G09B: EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS (devices for psychotechnics or for testing reaction times A61B5/16; games, sports, amusements A63; projectors, projector screens G03B) ## Abstract A simulated dissectible tissue model for practicing surgical skills is provided. The simulated tissue comprises a simulated anatomical structure, such as one or more artificial vessel, embedded with a silicone gel layer between two silicone layers. The simulated dissectible tissue, with or without a simulated anatomical structure, is connected to one or more artificial organ via a fiberfill layer. The fiberfill layer includes a plurality of entangled fibers embedded between two adjacent silicone layers. The fiberfill layer creates a dissection plane that permits the one or more artificial organ to be removed by spreading apart and selectively dissecting the chains of entangled fibers. Artificial nerves may be included in fiberfill layer. ## Claims ### Claim 1 A simulated dissectible tissue structure for surgical training, comprising: a planar multilayer structure having a top surface and a bottom surface, the planar multilayer structure comprising: a top layer of silicone having an upper surface and a lower surface; a bottom layer of silicone having an upper surface and a lower surface; a middle layer located between the top layer and the bottom layer; and a polyfill sandwich layer, the polyfill sandwich layer being connected to the lower surface of the bottom layer; and a silicone layer having an upper surface and a lower surface; the silicone layer and the planar multilayer structure being bonded together to form a joint along an entire length of a strip of white silicone at a contact location, wherein the strip of white silicone at the contact location is configured to bind the silicone layer and the planar multilayer structure together such that the upper and lower surfaces of each of the silicone layer and the planar multilayer structure are divided into two portions. ### Claim 2 (depends on 1) The simulated dissectible tissue structure of claim 1 further including a simulated prostate system suspended inside the interior of the frame. ### Claim 3 (depends on 1) The simulated dissectible tissue structure of claim 1 further including a simulated bladder suspended inside the interior of the frame. ### Claim 4 (depends on 1) The simulated dissectible tissue structure of claim 1 further including a simulated prostate suspending inside the interior of the frame. ### Claim 5 A simulated dissectible tissue structure for surgical training, comprising: a top layer of silicone having an upper surface and a lower surface defining a thickness therebetween; a bottom layer of silicone having an upper surface and a lower surface defining a thickness therebetween; a middle layer located between the top layer and the bottom layer; a least one simulated vessel of silicone located inside the middle layer; a second layer of silicone having an upper surface and a lower surface defining a thickness therebetween; and a third layer of polyfill located between the second layer and bottom layer. ### Claim 6 (depends on 5) The simulated dissectible tissue structure of claim 5 wherein the third layer of polyfill is connected to at least one of the second layer and bottom layer. ### Claim 7 (depends on 5) The simulated dissectible tissue structure of claim 5 further including a first layer of silicone having an upper surface and a lower surface defining a thickness therebetween; the third layer of polyfill being located between the second layer and the first layer; wherein the third layer of polyfill is connected to at least one of the second layer and the first layer. ### Claim 8 (depends on 7) The simulated dissectible tissue structure of claim 7 wherein the upper surface of the first layer is connected to the bottom surface of the bottom layer with adhesive. ### Claim 9 (depends on 5) The simulated dissectible tissue structure of claim 5 wherein at least part of the top surface of the bottom layer is connected to the bottom surface of the top layer. ### Claim 10 (depends on 5) The simulated dissectible tissue structure of claim 5 wherein the middle layer is made of gel. ### Claim 11 (depends on 5) The simulated dissectible tissue structure of claim 5 wherein the middle layer is a polyfill layer. ### Claim 12 (depends on 5) The simulated dissectible tissue structure of claim 5 further including a fourth layer of silicone having an upper surface and a lower surface; the fourth layer being joined to the upper surface of the top layer along a first end of white silicone. ### Claim 13 (depends on 12) The simulated dissectible tissue structure of claim 12 further including a fifth layer of silicone having an upper surface and a lower surface and a sixth layer of silicone having an upper surface and a lower surface; the fifth layer and the sixth layer being joined to the white silicone along a first end. ### Claim 14 (depends on 13) The simulated dissectible tissue structure of claim 13 further including a frame; wherein a second end of the fifth layer is connected to the frame and a second layer of the sixth layer is connected to the frame. ### Claim 15 A simulated dissectible tissue structure comprising: a simulated organ made of silicone; one or more fastener connected to the simulated organ; a tray made of rigid material; the tray includes a base and a supportive platform; the supportive platform is spaced apart and above the base; the tray includes one or more fastener location; the simulated organ being connected to the tray via connection of the one or more fastener with the one or more fastener location; the one or more fastener being removably connectable to the one or more fastener location. ### Claim 16 (depends on 15) The simulated dissectible tissue structure of claim 15 further including an incisable simulated skin layer overlaying and connected to the tray such that penetration of the simulated skin layer provides access to the simulated organ. ### Claim 17 (depends on 15) The simulated dissectible tissue structure of claim 15 wherein the one or more fastener is a rivet and the fastener location is a hole sized and configured to receive the rivet. ### Claim 18 (depends on 15) The simulated dissectible tissue structure of claim 15 further including two oppositely disposed sidewalls upstanding from the platform; the sidewalls including one or more fastener location configured to connect with the one or more fastener. ### Claim 19 (depends on 15) The simulated dissectible tissue structure of claim 15 wherein the simulated organ includes an artificial prostate. ### Claim 20 (depends on 15) The simulated dissectible tissue structure of claim 15 wherein the simulated organ includes an artificial uterus.