Pneumatic traction means for medical patients
AssigneePneumatic Traction Company
InventorEdmund J. Brown
Life of this patent
Estimating the term…
Abstract
A means for applying traction to a medical patient which includes a pneumatic cylinder and piston and a means for pressurizing the cylinder so as to apply a predetermined traction force. One embodiment further includes a storage cylinder to minimize change in traction force with change in position of the piston and a hand operated pumping cylinder and piston mounted in the storage cylinder. Another embodiment utilizes an extraneous source of pneumatic pressure, pressure regulating valve and a hand operated relief valve to permit cyclic application of traction.
Claims7
A pneumatic means attachable to a mounting means fixed to a bed or other means supporting a patient for applying a traction force to the patient said traction applying means comprising:
- a. a traction unit including a cylinder, piston and stem extending through one end of the cylinder, the traction unit forming a pressure chamber between the piston and end of the cylinder through which the stem emerges;
- b. means for attaching the traction unit cylinder to said mounting means;
- c. means for attaching the stem to the patient;
- d. and means for pressurizing the pressure chamber to apply a traction force urging the stem inwardly to apply tension through the stem to the patient.
A pneumatic means attachable to a mounting means and to a patient for applying a traction force to the patient, said traction applying means comprising:
- a. a traction unit including a cylinder, piston and stem;
- b. means for interposing the traction unit between the mounting means and a patient;
- c. a reservoir shell surrounding the traction unit cylinder and joined to the ends thereof;
- a pump unit including a cylinder, piston, stem and handle, the pump unit cylinder being mounted in the reservoir shell and the handle being exposed for manual operation;
- d. the pump unit cylinder and traction unit cylinder having ports in communication with the reservoir whereby operation of the pump unit pressurizes both the reservoir shell and traction unit cylinder for application of a traction force on the patient.
Dependencies are inferred from the claim text.