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A high frequency pressure oscillation device and method of providing high frequency pressure oscillations to a patient. The device includes a patient circuit coupling a gas source to an airway of a patient, and a valve disposed in the patient circuit. The valve communicates the gas source with the p

A high frequency pressure oscillation device and method of providing high frequency pressure oscillations to a patient. The device includes a patient circuit coupling a gas source to an airway of a patient, and a valve disposed in the patient circuit. The valve communicates the gas source with the patient's airway when in a first position and at least partially restricts communication when in a second position. A rotating drive assembly rotates the valve in a first direction such that the valve is alternatively disposed in the first and second positions. This system is capable of delivering positive and negative pressures to the airway of a patient by including a blower as the source of breathing gas. This system is also capable of superimposing a high frequency oscillating pressure signal on another pressure signal by adding a second blower in series with the first blower.

대표청구항 ▼

A high frequency pressure oscillation device and method of providing high frequency pressure oscillations to a patient. The device includes a patient circuit coupling a gas source to an airway of a patient, and a valve disposed in the patient circuit. The valve communicates the gas source with the p

A high frequency pressure oscillation device and method of providing high frequency pressure oscillations to a patient. The device includes a patient circuit coupling a gas source to an airway of a patient, and a valve disposed in the patient circuit. The valve communicates the gas source with the patient's airway when in a first position and at least partially restricts communication when in a second position. A rotating drive assembly rotates the valve in a first direction such that the valve is alternatively disposed in the first and second positions. This system is capable of delivering positive and negative pressures to the airway of a patient by including a blower as the source of breathing gas. This system is also capable of superimposing a high frequency oscillating pressure signal on another pressure signal by adding a second blower in series with the first blower. hen the bowstring is released, the biasing housing moves back to it original position and the first and second cables are compelled to stop vibrating by the movement of the biasing housing returning to the original position thereby decreasing the amount of vibration noise produced by the vibrating of the first and the second cable. 4. The cable guard of claim 2 wherein the biasing housing includes a first portion and a second portion, wherein the diameter of the first portion is greater than the diameter of the second portion forming a seat. 5. The cable guard of claim 2 wherein the biasing means is elected from the group consisting of coil spring, air spring, and leaf spring. 6. The cable guard of claim 2 wherein the biasing means comprises at least one spring. 7. The cable guard of claim 2 further comprising an adjusting rod adapted to engage the biasing means and change a pre-set compression force of the biasing means. 8. The cable guard of claim 2 wherein the compression of the biasing means adds an extra tension force to the biasing means, and wherein the extra tension force provides the arrow with an increased speed. 9. The cable guard of claim 2 wherein the guide means includes a first and a second opening formed therethrough. 10. The cable guard of claim 9 wherein the depth of the first opening is greater than the depth of the second opening to avoid that the cables touch each other. 11. The cable guard of claim 2 wherein the rod comprises a first section and a second section, wherein the first section has a diameter greater than a diameter of the second section, wherein the first section includes an internal threaded end and the second section includes an external threaded end, wherein the external threaded end of the second section is threaded to the internal threaded end of the first section. 12. The cable guard of claim 2 wherein the first end of the rod has a diameter greater than a diameter of the second end of the rod forming a seat. 13. The cable guard of claim 2 wherein the housing further comprises an internal stopper located at the second end of the housing. 14. A cable guard for use with a compound bow, the compound bow having a handle portion and a pair of opposite bow limbs, a first and a second cable which cross one another in extending between opposite bow limbs and a bowstring, the cable guard comprising: a rod having a first end and a second end, wherein the first end of the rod is attached to the handle portion of the compound bow; a swing arm attached to the second end of the rod, a biasing means disposed inside a housing, wherein the housing comprises a center axis, wherein the second end of the rod runs through the center axis of the housing; wherein when the bowstring is drawn to a draw position, the swing arm folds back moving forward the rod compressing the biasing means.