Restoration Methods of Respiratory Function for Spinal Cord Injury

Table 1

The main difference between three kinds of diaphragm pacemakers [4, 26].

Manufacturer		Avery, USA	Atrotech, FIN	Medimplant, AUS
Developed time		1960	1980	1984
Electrodes		Monopolar; bipolar	Quadripolar	Quadripolar
Breaths/min		6–24	8–35	5–60
Pulse width (ms)		150	200	100–1000
FDA approval		Yes	Invalid	No
Electrode implantation		Easy	Relatively difficult	Complicated
Diaphragm fatigue		Yes	Relatively light	Relatively light