A Gastrointestinal Electrical Stimulation System Based on Transcutaneous Power Transmission Technology

Table 3

Reactions of the cecum to different stimulation parameters.

Stimulation parameters			Healthy pig				STC pig
𝑉pp; (V)	𝑇𝑤; (ms)	𝑓; (Hz)	Incubation; (ms)	Myoelectrical; activity	Pressure rise; (mmHg)	Shrinkage; (%)	Incubation; (ms)	Myoelectrical; activity	Pressure rise; (mmHg)	Shrinkage; (%)
7.5	1	10	16.1±2.1	6.2±1.8	5.2±1.1	8.2±2.26	21.1±2.3	2.1±0.4	3.2±0.5	7.3±1.19
7.5	3	10	15.2±3.5	14.1±3.2	13.6±2.7	14.5±3.15	19.8±3.7	5.4±1.6	6.6±2.1	6.4±1.41
7.5	5	10	14.1±2.4	22.9±4.1	24.1±2.3	18.7±3.71	18.8±3.5	8.3±1.2	13.9±0.8	12.6±2.48
10	0.1	40	9.5±1.2	8.3±1.5	9.8±1.1	11.4±2.49	15.1±2.5	4.8±1.2	5.2±1.0	4.4±1.52
10	0.3	40	9.3±2.1	12.1±2.8	9.4±1.4	15.7±2.41	14.6±1.9	7.5±2.3	3.7±0.6	8.3±2.09
10	1	40	9.0±1.6	27.8±4.3	12.6±2.4	15.3±4.29	12.1±1.1	13.4±1.7	5.5±0.7	11.6±2.84
10	3	40	8.8±0.9	29.2±7.8	27.5±3.4	31.4±4.44	13.4±0.9	15.3±1.7	22.8±5.0	29.4±3.82
10	5	40	8.3±1.1	36.5±11.2	37.4±4.2	38.4±6.56	12.5±1.1	18.5±3.1	36.0±5.4	32.4±4.72
10	10	40	7.9±0.8	47.6±7.5	59.5±4.7	40.7±7.01	11.0±1.4	37.5±8.1	44.1±2.9	39.4±8.82
12	0.1	120	5.1±0.8	11.7±1.8	20.0±1.7	14.6±4.32	12.5±0.8	12±0.5	12.6±1.9	9.3±2.19
12	0.3	120	4.2±0.6	17.3±2.1	34.2±2.3	21.9±6.17	9.3±0.8	11.4±1.3	12.8±1.1	11.4±2.42
12	1	120	4.1±0.4	38.3±4.2	51.9±4.7	42.7±8.81	8.8±1.3	18.5±2.1	36.1±2.1	36.7±7.01
12	3	120	3.8±0.3	41.7±5.1	60.1±5.5	44.4±9.32	8.9±2.1	31.3±7.9	43.2±3.0	38.5 ± 11.75
12	5	120	3.6±0.2	Tetanic contraction	71.4±1.3	46.8 ± 11.04	5.6±0.8	43.7±11.2	43.1±5.3	39.6 ± 12.02

∗The unit of myoelectrical activity is times per 5 min which is counted after the stimulation.