Fig. 1 ZOLL OneStep™ Pediatric CPR Resuscitation Electrode. Anterior pad (left) has attached CPR sensor to be placed over the sternum, and posterior pad (right) with embedded CPR sensor to be placed on the back as indicated on the pad labels. More about this image found in ZOLL OneStep™ Pediatric CPR Resuscitation Electrode. Anterior pad (left) ha...

Fig. 2 Schematic of computer-controlled CPR motion system. The CPR motion system is used to simulate chest compressions. The anterior sensor was fixed to the platform labeled “A,” and the posterior sensor was fixed to the platform labeled “B.” During rigid surface simulations, linear motion was ap... More about this image found in Schematic of computer-controlled CPR motion system. The CPR motion system i...

Fig. 3 Histograms of depth error for each target depth (left) and for each target rate (right). Distribution of depth error for all compressions is shown in bottom right of both target depth and target rate subplots. Rigid surface simulation data are shown in red and compliant surface simulation d... More about this image found in Histograms of depth error for each target depth (left) and for each target ...

Fig. 4 Histograms of rate error for each target depth (left) and for each target rate (right). Distributions of rate error for all compressions are shown in bottom right of both target depth and target rate subplots. Rigid surface simulation data are shown in red and compliant surface simulation d... More about this image found in Histograms of rate error for each target depth (left) and for each target r...

Fig. 1 Limitations of current Side-Cut biopsy needle devices: ( a )biopsy core size, ( b ) no core feature delineating orientation, ( c )multiple biopsies required for adequate core, and ( e ) tissue damage beyond core sample More about this image found in Limitations of current Side-Cut biopsy needle devices: ( a )biopsy core siz...

Fig. 2 Developed aspiration-assisted needle biopsy device (UF device) sample collection sequence. ( a ) The coaxial needle is inserted into the tissue. The motor and plunger holder are fixed to the device housing. ( b ) The motor is activated to move the syringe forward until it jams, which causes... More about this image found in Developed aspiration-assisted needle biopsy device (UF device) sample colle...

Fig. 3 Main components housed inside the developed device (UF device) More about this image found in Main components housed inside the developed device (UF device)

Fig. 4 External breadboard controller circuit More about this image found in External breadboard controller circuit

Fig. 5 Modified syringe and needle components: ( a ) plunger with inner stylette, ( b ) barrel with external needle, and ( c ) full syringe and needle assembly More about this image found in Modified syringe and needle components: ( a ) plunger with inner stylette, ...

Fig. 6 Biopsy devices tested: UF device (top), Bard Max-Core 1825 (middle), and Argon BioPince (bottom) More about this image found in Biopsy devices tested: UF device (top), Bard Max-Core 1825 (middle), and Ar...

Fig. 7 Experimental procedure pictures: ( a ) needle insertion into gelatin specimen and ( b ) bovine cardiac tissue ex vivo More about this image found in Experimental procedure pictures: ( a ) needle insertion into gelatin specim...

Fig. 8 Bar graphs of sample lengths and masses for each of the phantom tissues (G-H: 21 g gelatin, G-L: 7 g gelatin, BL: bovine liver, BK: bovine kidney, BC: bovine heart, PL: porcine liver, PK: porcine kidney, and OK: ovine kidney) for each biopsy device ( n  = 1): ( a ) sample lengths and ( b ) ... More about this image found in Bar graphs of sample lengths and masses for each of the phantom tissues (G-...

Fig. 9 Bovine cardiac tissue collection results. ( a ) Collected bovine cardiac tissue samples: (i) Bard Max-Core 1825 sample, (ii)Argon BioPince sample, and (iii) UF device sample. ( b ) Bar graph of average sample lengths collected using the Bard Max-Core 1825, Argon BioPince, and UF device biop... More about this image found in Bovine cardiac tissue collection results. ( a ) Collected bovine cardiac ti...