초록 ▼

A device for traction medical therapy exerts a force on the patient as selected via a patient or doctor-controlled hand-held unit. The unit sends signals to a traction puller device which may be secured to the end of the patient\s bed, or on some other appropriate framework. Traction force is develo

A device for traction medical therapy exerts a force on the patient as selected via a patient or doctor-controlled hand-held unit. The unit sends signals to a traction puller device which may be secured to the end of the patient\s bed, or on some other appropriate framework. Traction force is developed by a small fluid pump, preferably a vacuum pump, acting to evacuate a cylinder with a piston which is connected to a traction pulling line or cord connected to the patient. The patient can increase the traction force by further evacuation of the cylinder, and can lighten traction force by operating a valve which gradually vents vacuum from the system. In a preferred embodiment, the piston and cylinder have a rolling diaphragm, making the cylinder completely leak proof so that traction force will not dissipate over time. Another preferred feature is the inclusion of a differential controller which enables a traction patient to selectively set a given pulling force for the apparatus, regardless of movements of the patient which would otherwise tighten or slacken the traction line.

대표청구항 ▼

An apparatus for producing a selected and adjustable level of traction pulling force, particularly for a medical traction patient, comprising, piston and cylinder means with pump means for exerting a pressure and a force on the piston, which is positioned within the cylinder, a tension line connecte

An apparatus for producing a selected and adjustable level of traction pulling force, particularly for a medical traction patient, comprising, piston and cylinder means with pump means for exerting a pressure and a force on the piston, which is positioned within the cylinder, a tension line connected to the piston in a position so as to be pulled in tension when the piston is moved by the pressure, venting means associated with the cylinder for selectively releasing the pressure on the piston, remote control means for operation by a patient or physician, for selectively activating the pump means or the venting means in order to increase pulling force in the line or to decrease pulling force in the line.