Simulate cutting possible tissue

Abstract

A simulated tissue structure for surgical training is provided. [Solution] The simulated tissue structure has a first layer made of silicone and a second layer made of silicone, and the first and second layers are interconnected by a third layer made of polyester fibers, which is partially embedded in the first layer and partially embedded in the second layer to create a mechanical linkage between the first and second layers. Parts of the third layer adjacent to the first layer and parts of the third layer adjacent to the second layer have a first strand coated with silicone. An inclusion body mimicking an anatomical structure is placed between the first and second layers. The third layer of polyester fibers provides a realistic incision plane for practicing surgical excision of the inclusion body.

Claims

[Claim 1] A simulated tissue structure for surgical training, It has an upper surface and a lower surface, and a first layer of silicone polymer having a thickness between the upper surface and the lower surface, The first layer has an upper surface and a lower surface, and a second layer of silicone polymer has a thickness between the upper surface and the lower surface, the second layer being spaced apart from the first layer such that the upper surface of the first layer faces the lower surface of the second layer. A simulated tissue structure having a third layer made of a plurality of intertwined fibers disposed between the first layer and the second layer, wherein at least a portion of the plurality of intertwined fibers of the third layer is embedded in at least one of the first layer and the second layer. [Claim 2] A simulated tissue structure for surgical training, It has a first layer of silicone polymer with an upper surface and a lower surface, It has a second layer of silicone polymer having an upper surface and a lower surface, the second layer being spaced apart from the first layer such that the upper surface of the first layer faces the lower surface of the second layer, It has a third layer made of a plurality of intertwined fibers disposed between the first layer and the second layer, the third layer being embedded in the upper surface of the first layer, It has a fourth layer made of a plurality of intertwined fibers disposed between the first layer and the second layer, the fourth layer being embedded in the second layer at the lower surface of the second layer, A simulated tissue structure having a first inclusion body disposed between the third layer and the fourth layer. [Claim 3] A simulated tissue structure for surgical training, Having a first tube having a first lumen, the first tube having an inner layer, an outer layer and an intermediate layer, the outer layer being connected to the inner layer by the intermediate layer, and the intermediate layer being made of a plurality of intertwined fibers, some of which are embedded in the inner layer and some of which are embedded in the outer layer, The first tube has a second lumen, the second tube having an outer layer and an inner layer, and the first tube is positioned inside the second lumen. A simulated tissue structure having an inclusion body disposed between the inner layer of the second tube and the outer layer of the first tube. [Claim 4] A simulated tissue structure for surgical training, It has a first layer made of silicone and a second layer made of silicone, the first layer and the second layer being interconnected by a third layer made of loose fibers, partly embedded in the first layer and partly embedded in the second layer, so as to create a mechanical linkage between the first layer and the second layer. A simulated tissue structure in which a portion of the third layer adjacent to the first layer and a portion of the third layer adjacent to the second layer have silicone-coated fiber strands. [Claim 5] The simulated tissue structure according to any one of claims 1 to 4, wherein the third layer is made of polyester fibers. [Claim 6] The simulated tissue structure according to any one of claims 1 to 5, wherein at least a portion of the third layer is embedded in at least one of the first layer and the second layer while the silicone polymer is uncured. [Claim 7] The simulated tissue structure according to any one of claims 1 to 6, wherein at least a portion of the plurality of intertwined fiber filaments of the third layer are embedded in both the first layer and the second layer to form a mechanical linkage of fibers connecting the first layer and the second layer. [Claim 8] The simulated tissue structure according to any one of claims 1 to 7, further comprising an inclusion body disposed between the first layer and the second layer. [Claim 9] The simulated tissue structure according to any one of claims 1 to 8, wherein the inclusion body is attached to at least one of the first layer and the second layer. [Claim 10] The simulated tissue structure according to any one of claims 1 to 9, wherein the inclusion body is selected from the group consisting of simulated anatomical structures, organs, vascular systems, nerves, tissues, tumors, prostates, prostatic systems, veins, blood vessels, and lumens. [Claim 11] The simulated tissue structure according to any one of claims 1 to 10, wherein the inclusion body is embedded in at least one of the first layer and the second layer. [Claim 12] The simulated tissue structure according to any one of claims 1 to 11, wherein at least one of the first layer and the second layer has a thickness of about 1.0 mm to 5.0 mm. [Claim 13] The simulated tissue structure according to any one of claims 1 to 12, wherein the first inclusion body is connected to either the first layer or the second layer. [Claim 14] The simulated tissue structure according to any one of claims 1 to 13, wherein at least a portion of the first inclusion body is embedded in one of the first layer or the second layer. [Claim 15] The simulated tissue structure according to any one of claims 1 to 14, wherein the first inclusion body is positioned between the third layer and the fourth layer so that the first inclusion body can be removed. [Claim 16] The simulated tissue structure according to any one of claims 1 to 15, further comprising a second inclusion body attached to the third layer at the lower surface of the third layer, wherein the third layer comprises an embedded portion partially embedded in the second inclusion body and an extended portion extending from the lower surface of the third layer, the extended portion being embedded in the first layer at the upper surface of the first layer. [Claim 17] The simulated tissue structure according to any one of claims 1 to 16, wherein the first inclusion body is composed of one or more of an artificial prostate, an artificial seminal vesicle, an artificial bladder, an artificial urethra, and an artificial vas deferens. [Claim 18] It further comprises a third tube having an outer surface and an inner surface that define a third lumen, the third tube being positioned inside the first lumen, The simulated tissue structure according to any one of claims 1 to 17, further comprising a fourth tube having an outer surface and an inner surface defining a fourth lumen, wherein the first tube is disposed inside the third tube. [Claim 19] The simulated tissue structure according to any one of claims 1 to 18, wherein the fourth tube is eccentric with respect to the third tube. [Claim 20] The simulated tissue structure according to any one of claims 1 to 19, wherein the intermediate layer of the first tube is made of polyester fibers, and the inner layer and outer layer of the first tube are made of silicone. [Claim 21] The simulated tissue structure according to any one of claims 1 to 20, wherein the outer layer of the first tube is transparent or white, the inner layer of the second tube is made of white polyester fiber, and the intermediate layer of the first tube is white.

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