A pneumatically actuated impact tool, for use by trained personnel in chiropractic treatment of the spine and other parts of the body, includes a resiliently tipped plunger reciprocably mounted in a cylinder having a tank, with a fitting for connection to a source of air under pressure. Air pressure is selectively communicated to the cylinder and thereby to the plunger by a valve mounted in an aperture in a wall separating the tank and the cylinder, and engaged by a valve lever which is pivoted in a handle attached to the tank and to the cylinder. A trigger is pivotally mounted on the handle and has a portion thereof engaging the valve lever, to provide a leverage to open the valve and allow the air pressure into the cylinder to drive the plunger in a single stroke against a compression spring mounted coaxially thereon to impart a desired impact to the patient.
A chiropractic adjustor apparatus having an electromagnetic drive mechanism connected to an actuating means which causes a shaft to reciprocate. The reciprocating shaft is used to apply pressure or force directly to the spinal vertebrae of a body. The improvements of this device include a variable-controlled switch to enable the user to change the frequency of the reciprocation; a thermal cut-off switch that automatically turns off the power to the electromagnetic drive mechanism so that the device will stop reciprocating; and a suite of structures that work together to resist rotation when the device is in use.
The invention relates to a single-blow mechanical shockwave generation device used in urological surgery for disintegration of urinary duct stones, comprising a striking device which strikes a shock wave generation device at high speed. The shock waves are transmitted by a shock wave transfer device to an object for destruction with which the shock wave transfer device is in direct or indirect contact. The striking device is displaced by way of the expansion of a high-pressure gas introduced prior to each shock wave generation into an accumulation device. The accumulation device is supplied with high pressure gas from independent gas stores and with supply and sealing devices. The stored gas is released by the manual manipulation of a control device which connects the accumulation device to the striking device.
A therapeutic vibrator comprising a motor contained in a housing, a diaphragm mounted on said housing, and a reciprocating arm connecting the motor to the diaphragm. The housing is fitted with at least one one-way air valve, and at least one air hole so that in operation, the changing volume in the housing effects the pumping of air across the motor and any circuitry to provide cooling. To improve efficiency, a divider plate with at least one air hole is disposed proximate the reciprocating arm to limit the volume of the pumping chamber.
A linear motor apparatus capable of delivery of single or multiple impacts to the body so as to provide massage or other treatment. Frequency, duration and force of impact are operator controlled variables. Resonances may be set up in body tissue material so as to result in standing waves in said body material.
A chiropractic thruster for use in chiropractic treatment to apply controlled impact forces or thrusts to a human body comprises a rubber tipped free-floating punch, the length of stroke of which can be adjusted to control the force applied to the body. The punch delivers one stroke whenever the trigger of a three-way poppet valve is depressed and causes a burst of compressed air to flow from a relatively large compressed air reservoir in the thruster handle to one side of a spring-biased piston in a relatively smaller air cylinder located in the thruster. The piston comprises a piston rod which drives the punch and which, when the piston is biased to retracted position, is spaced from the inner end of the punch by a predetermined distance.
