×

Safety features for continuous motion therapy system

  • US 4,798,197 A
  • Filed: 03/10/1987
  • Issued: 01/17/1989
  • Est. Priority Date: 03/10/1987
  • Status: Expired due to Fees
First Claim
Patent Images

1. A continuous motion system for providing continuous motion therapy to a patient'"'"'s limb, including:

  • a carriage for supporting a patient'"'"'s limb;

    drive means for driving the carriage through a range of reciprocal angular movement;

    neuromuscular stimulation (NMS) means for applying electrical stimulation to muscles of the patient'"'"'s limb; and

    control means for controlling the drive means and the NMS means, the control means including;

    ON/OFF switch means having ON and OFF states for controlling the application of power to the control means;

    NMS switch means having ON and OFF states for controlling the NMS means; and

    NMS safety circuit means coupled to the ON/OFF switch means, the NMS switch means and the NMS means for disabling the NMS means and thereby preventing the application of electrical stimulation when the ON/OFF switch means is is in its ON state until after the NMS switch means has been switched from its OFF state to its ON state.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×