373results about "Blood stagnation prevention" patented technology

An automatic portable ambulant miniaturized system for applying pneumatic pressure to a body limb including a portable ambulant hand-held fluid source unit, a conduit for delivering fluid generated by the unit, and a pressure sleeve coupled to the conduit and adapted to envelop a body limb. The pressure sleeve contains individually inflatable cells, each cell being subdivided into longitudinally extending confluent intra-cell compartments along the axis of the body limb. The intra-cell compartments are inflated and deflated essentially simultaneously by the portable fluid source unit. To increase the peak venous velocity generated by any kind of external compressive force on a limb with any kind of tempo-spatial regime, the venous phasic flow is monitored to determine so that the venous flow generated by the external compressive force can be synchronized with the in-phasic natural venous flow.

A compression apparatus including an expandable body configured for disposal about a foot. A strap extends from the body. The strap is configured for disposal about the foot adjacent an ankle. The strap has a first layer configured to engage an outer surface of the foot adjacent the ankle, a second layer and a third cushion layer disposed therebetween. The body may include a metatarsal portion. The first layer and the second layer may be configured to provide a barrier to the third cushion layer. The first layer may be configured to prevent engagement of the third cushion layer with the outer surface of the foot.

Devices that employ external compression stocking-type garments in the treatment of edema, chronic wounds, deep venous thrombosis prevention or claudication all share a number of significant limitations. These include the frequent need for custom fitting to assure an appropriate fit, vigilant maintenance to assure a continued “good fit,” limited compliance with proper use by patients and difficulty of application. There is a large body of evidence demonstrating that patients often decline to wear the compressive stockings as prescribed or in the form that would be most beneficial because they find these devices to be difficult to put on and take off.Building on the limitations of existing therapies, and distilled lessons learned from the field of prosthetics and wound healing, the present invention employs vacuum-assisted negative pressure to provide compression and help pump fluid from the tissues of affected limbs. The device is embodied in the form of a flexible stocking-like garment that will utilize a pumping mechanism to generate negative pressure around the limb and thus create vacuum compression that will mobilize fluid in a limb and increase venous return to the heart. Through the use of a circumferential wrap, the present invention provides a major advance in both the distribution of vacuum and the securing of the device over the limb.

A pressurized medical device comprising an inflatable element arranged to contact a part of a patient; a fluid connector attached to the element and arranged to deliver fluid to the element; a control system arranged to control flow of fluid in the device; a first element pressure sensor arranged to measure the pressure exerted by the element on the part of the patient; and detection means arranged to detect malfunctioning of the first element pressure sensor.

The present invention provides a device for enhancing circulation by intermittently tightening and relaxing a closure encircling a limb. The device comprises a continuously operating motor, at least one rotating element and a mechanism driven by the motor for intermittently rotating the rotating element in a first direction to tighten said closure and in a second opposite direction to relax said closure, thereby applying a cyclic pressure on the limb.

This invention relates to an elastic bandage for supporting a body extremity such as a leg. Such bandages are used to overcome problems with fluid retention and swelling in the legs, occurring as a consequence of varicose veins, vascular incompetence, pregnancy, etc. It is a task of this invention to supply an active support for a body extremity such as a leg, which can be used by a person underneath the clothes and will not reduce the mobility of the patient. This task is solved in that an elastic bandage comprises an elastic layer for surrounding a body extremity to exert compressive force on the extremity, the bandage being, at least partly, formed by elastomeric actuation elements, whereby electrical control of the compressive force is possible, and where the control is due to a signal from some sensing system.

A sleeve for use with a circulation enhancement device, including a first layer that is adapted to substantially encircle a user's limb, a second layer that is adapted to interface the circulation enhancement device, a connection between the first layer and the second layer at a preset position; and wherein the second layer is adapted to be attached to various position along the circumference of the first layer and at least partially encircle the first layer.

The present invention provides a differential pressure body suit with external support against body suit migration. In its preferred embodiment, such body suit may comprise a close-fitting, multi-layered suit sealed against a mammal's skin to contain the differential pressure, or a looser-fitting suit that bends at the mammal's joints with minimal force. External support means include either fixed or movable mechanical supports attached to the body suit, extraordinary air pressure levels for making the body suit rigid, or exoskeletons attached to the body suit. A cyclic control system can turn the differential pressure condition within the body suit on and off on a selective basis to accommodate the movement of the legs of the mammal. This differential pressure body suit provides a portable and convenient system for, e.g., rehabilitating a skeletal joint injury or training the mammal for injury prevention or athletic performance or fat burning. The pressurization reduces the weight of the body to greater or lesser extents, and offloads the weight to the ground through the external support means.

The present invention provides a device for enhancing circulation by intermittently tightening and relaxing a closure encircling a limb. The device comprises a continuously operating motor, at least one rotating element and a mechanism driven by the motor for intermittently rotating the rotating element in a first direction to tighten the closure and in a second opposite direction to relax the closure, thereby applying a cyclic pressure on the limb.