silicone based sealant  (World Precision Instruments)

Journal: Advanced materials technologies

Article Title: 3D Printed Organ Models with Physical Properties of Tissue and Integrated Sensors

doi: 10.1002/admt.201700235

Figure Lengend Snippet: 3D printed patient-specific prostate model with physical properties of tissue and integrated sensing capabilities for advanced surgical rehearsal. a) Schematic of the 3D printed prostate model highlighting the various components, properties, and applications. b) Mechanical and optical tests for obtaining the physical and optical properties of patient prostate tissue samples to guide ink development.

Article Snippet: Fabrication of customized polymeric inks with physical properties of tissue for 3D printing Silicone sealant (acetoxy-based RTV sealant Loctite SI 595TM CL), silicone grease (#LP20, Trident ® ), Procyinyl Red GS (ICI America Inc.) and fumed silica (7 nm, Aldrich) were combined in the formulation as an active agent for vulcanization, a bulking agent (softness after vulcanization), a coloring agent, and a thickening agent, respectively.

Techniques:

Journal: Advanced materials technologies

Article Title: 3D Printed Organ Models with Physical Properties of Tissue and Integrated Sensors

doi: 10.1002/admt.201700235

Figure Lengend Snippet: 3D printing of prostate model, anatomical fidelity analysis and organ physical behavior prediction using the 3D printed prostate model. a) Procedure for converting patient-specific MRI to G-code for the 3D printing process. b) 3D printing process of the prostate model using the customized polymeric ink. c) Photograph of the 3D printed prostate model. d) An MRI image obtained via scanning a 3D printed prostate model. e) Calibrated distance map via 3D registration for comparison of anatomical fidelity between patient prostate and 3D printed prostate model at the outer surface (left) and urethra surface (right). f) Histogram of the calibrated distances of the surface points for comparison of anatomical fidelity between the patient prostate model and 3D printed prostate model. g) Total deformation results after compression of the FEM model (15% of model height). h) Displacement comparison for feature dots between results from compression of the 3D printed prostate model (with standard deviation error bars) and the FEM simulated model. Inset: Displacement of the feature dots on the 3D printed prostate model after compression with the displacement trajectories. i) Reaction force comparison between results from compression of the 3D printed prostate model and the FEM simulated model.

Article Snippet: Fabrication of customized polymeric inks with physical properties of tissue for 3D printing Silicone sealant (acetoxy-based RTV sealant Loctite SI 595TM CL), silicone grease (#LP20, Trident ® ), Procyinyl Red GS (ICI America Inc.) and fumed silica (7 nm, Aldrich) were combined in the formulation as an active agent for vulcanization, a bulking agent (softness after vulcanization), a coloring agent, and a thickening agent, respectively.

Techniques: Comparison, Standard Deviation

Journal: Advanced materials technologies

Article Title: 3D Printed Organ Models with Physical Properties of Tissue and Integrated Sensors

doi: 10.1002/admt.201700235

Figure Lengend Snippet: Quantitative surgical rehearsal using the 3D printed prostate model. a) Surgical rehearsal involving applying an endoscope in the urethra of the 3D printed prostate model. b) Endoscopic view of the urethra inside of the 3D printed prostate model. c) Surgical suturing on the 3D printed prostate model. d) Schematic of the structure of the 3D printed soft tactile sensor (left) and photograph of the corresponding 3D printed sensor (right). e) Characterization of the response repeatability for the soft tactile sensor via capacitance changes with an applied cyclic pressure of 50 kPa. f) Calibration of the 3D printed sensor based on the correlation between capacitance change and the applied pressure. g,h) Quantitative surgical rehearsal involving the 3D printed prostate model upon applying a finger (g) and a surgical grasper (h), respectively, on the sensor integrated on the outer surface of the model and their corresponding pressure responses (indicated at each of the peaks) from the capacitance changes of the sensor. i,j) Quantitative surgical rehearsal involving the 3D printed prostate model when applying an endoscope (i) and surgical scissors (j) on the sensor integrated on the urethra surface inside of the model, and their corresponding pressure responses (indicated at each of the peaks) from the capacitance changes of the sensor.

Article Snippet: Fabrication of customized polymeric inks with physical properties of tissue for 3D printing Silicone sealant (acetoxy-based RTV sealant Loctite SI 595TM CL), silicone grease (#LP20, Trident ® ), Procyinyl Red GS (ICI America Inc.) and fumed silica (7 nm, Aldrich) were combined in the formulation as an active agent for vulcanization, a bulking agent (softness after vulcanization), a coloring agent, and a thickening agent, respectively.

Techniques: