42results about How to "Pressure" patented technology

A portable wound treatment apparatus, for stimulating the healing of superficial wounds, comprises a housing containing a suction pump and a canister for containing fluids drawn from the wound. The housing is supported on a harness or belt worn by the patient. The canister is connected to a porous wound dressing at the wound site via a plurality of tubes, a multi-lumen tube or a combination thereof. A rechargeable battery pack may be incorporated within the housing or externally thereto. The external battery pack may be shaped to balance the housing on the harness or belt. Pressure transducers are provided to monitor and report pressures at the wound site or internal to the canister. Monitored pressures may also be utilized to determine the filled state of the canister and, thereafter, either report this state to the operator or automatically discontinue suction from the wound, or both.

Catheter for inserting into a hollow organ, in particular a blood vessel, wherein at least one tube- or balloon-like flexural element (12, 12a, . . . , 12l) which can be filled with a filling medium is provided inside the catheter, which flexural element is flexible in the non-pressurized state and stiffens as a result of pressure buildup internally and assumes a predetermined curved shape.

In order to provide a lumbar support which conforms to the curve of the spinal column so as not to give a feeling of incompatibility or other unpleasant feeling, and is easily adjusted to meet a user's preference, a lumbar support 10 of the present invention is structured such that a bulging member 30 provided with two housing parts 31 and 32 to house a cushioning material for adjustment 34 is fixed on the back surface of a flexible plate 20, which is incorporated so that the front surface of the flexible plate 20 is positioned to the front surface side of a back cushion 120. Accordingly, the curvature of the two housing parts 31 and 32 does not affect a feeling of contact with the waist as it is, but works as a feeling of contact with larger curvature owing to the flexible plate 20, which results in suppression of pressure on the nervous system between the third and fourth lumbar vertebrae. Furthermore, by setting the width of a border region 33 between the two housing parts 31 and 32 in an appropriate range, it is possible to suppress a feeling of pressure on such a nervous system, and at the same time, to suppress any feeling of incompatibility or other unpleasant feeling caused by too large a curvature.

An exercise device includes an upper body rest pivotally attached to a base. A first leg swing is pivotally attached to the base for engaging a first leg of an exerciser to perform a first leg raise. A second leg swing is pivotally attached to the base for engaging a second leg of an exerciser to perform a second leg raise. The upper body rest supports the spinal column and torso of an exerciser when performing the first and second leg raises.

At least one wafer is suspended on a respective jig shaft above a polishing platen. The degree of parallelism between the wafer and the polishing platen is controlled using a three-point suspension, which allows for planar pitch adjustments using vertical actuation algorithms. As the wafer is lowered into contact against the polishing platen, a load cell senses how much of the weight of the jig shaft, wafer mount and wafer continues to be supported by the jig. The vertical displacement of the wafer is controlled using a linear actuator responsive to a signal from the load cell. Vertical actuation of the wafer serves to increase or decrease this amount of supported weight, in turn decreasing or increasing the amount of applied down-force exerted between the wafer and the platen. A compression spring is used to increase the resolution of the pressure control. Finally, system components exposed to the work environment are encapsulated by chemically resistive components to prevent corrosion of system components.

Provided is a thin-film magnetic head for reading data from a magnetic recording medium and / or writing data to a magnetic recording medium, in which the magnetic spacing can be controlled appropriately by stably adjusting the pressure working between the thin-film magnetic head and the magnetic recording medium according to the change of conditions such as the change over time. This thin-film magnetic head comprises at least one through hole reaching a surface opposed to the magnetic recording medium of the thin-film magnetic head, for adjusting a pressure working between the thin-film magnetic head and the magnetic recording medium. Preferably, the head further comprises at least one flow-amount control means for controlling the flow amount of gas that flows via the at least one through hole.