89 results about "Compressive pressure" patented technology

A definitive socket for residual limb prosthetic use is formed in a single molding step by compressive pressure casting or molding a pre-formed, moldable, hardenable socket material over a residual limb and curing the socket material to a load-bearing hardened condition while it is maintained under peripheral compressive pressure against the residual limb and while the residual limb is tensioned in a distal direction during the casting process. The combination of pressure casting the socket material and applying tension to the residual limb in a distal direction while the socket material is curing results in forming a definitive socket that fits well to the residual limb after curing without substantial rectification. Pressure relief formations, socket coverings, and a prosthesis coupler may be compression molded simultaneously with the socket.

A compression adjustable fabric and/or garment, system, and/or method can include a compression element (a) integrated into a fabric structure, (b) having a compressive pressure capability independent from compressive pressure capabilities inherent in the fabric structure, and (c) adjustable to provide various compressive pressures. In such a garment, the compressive pressure provided by the garment can be adjusted in all or part of the garment while the garment is being worn. The compressive pressures in different parts of the garment may be independently adjustable. The compression element can further comprise an inflatable tube and/or an electrically stimulatable yarn. The compression element can be integrated into the fabric structure by being knit into, or laid in, the fabric structure.

Devices and methods are disclosed for achieving hemostasis in solid visceral wounds. Such devices and methods are especially useful in the emergency, trauma surgery or military setting. In such cases, the patient may have received trauma to the abdominal viscera. The devices utilize flexible, variable depth transfixing bolts that penetrate the viscera. These bolts are pulled tight to bring the tissue into apposition and hold said tissue in apposition while the wound heals. These bolts overcome the limitations of sutures that are currently used for the same purposes. The bolts come in a variety of lengths and diameters. Since the bolts are flexible, the curvature may be adjusted by the surgeon. The devices are flexible, bendable, and conformable in their wet or dry state. They can be used either straight or through a broad range of curvatures to suit the needs of various pathologies. The bolts include pressure plates that are capable of exerting compressive pressure over broad areas of visceral wounds without causing tearing of the friable parenchyma. The bolts may be placed and removed by open surgery or laparoscopic access.

A knitted therapeutic compression and cushion sock and a method for making such a sock include a terry-knit cushioning layer in selected bottom portions of the sock, allowing for greater ventilation and cooling in the top portion. The sock includes graduated zones of compressive pressures. Gradual changes in compressive pressures from one zone of compressive pressure to another can be provided by compression flaring, or changing the feed rate of elasticized yarn during knitting at or near the interface of two zones having different compressive pressures. Such a sock is useful for padding and compressing foot and leg areas to both prevent and treat vascular and skin conditions such as foot and leg ulcers.

A tubular garment includes a number of zones of compressive pressure about the circumference of the garment. A zone of compressive pressure in the distal portion of the garment includes a stitch pattern that is more dense than at least a portion of the stitch pattern in a zone of compressive pressure in the proximal portion of the garment. As a result, the compressive pressure in the distal portion zone is greater than the compressive pressure in the proximal portion zone. A more dense stitch pattern in one portion of a single zone can provide cushioning and increased compressive pressure compared to another portion of the zone. A more dense stitch pattern useful in such garments includes tuck stitches.

A watertight protective carrying case having first and second case body portions each including an outer containment and inner frame. Engageable lips are formed at one part of each inner frame, the lips matable in a sealing relationship when the case is in a closed condition. A cooperative closure assembly is configured and mounted at the outer containments so that upon engagement of the cooperative closure compressive pressure is applied at the frame lips with the engagable lips entirely enclosed by the cooperative closure. The compression thus effected by engagement of the closure is substantially constant at all locations along the interface of the lips thereby providing a tight seal of the entire interface with no need for the closure itself to be watertight.

Apparatus and methods for cyclically compressing the limb of a patient to improve blood flow in the limb. In one embodiment, a compression device includes a compressive section sized and shaped for extending around a portion of the limb for applying compressive pressure and a housing operatively connected to the compressive section. The housing includes first and second housing members movable relative to each other between contracted and expanded positions. A non-pneumatic mechanical actuator is provided in the housing for cyclically moving the first and second housing members from their contracted position to their expanded position.

A current limiting device comprises at least two electrodes; an electrically conducting composite material between the electrodes; interfaces between the electrodes and electrically conducting composite material; an inhomogeneous distribution of resistance at the interfaces whereby, during a high current event, adiabatic resistive heating at the interfaces causes rapid thermal expansion and vaporization and at least a partial physical separation at the interfaces; and a structure for exerting compressive pressure on the electrically conducting composite material, wherein the electrically conducting composite material comprises at least one polymer matrix and at least one conductive filler.

An article of apparel adapted to provide a compressive pressure to reduce lymphedema, the pressure configured to direct edema in a direction, wherein the apparel may be a garment adapted to be worn on an upper body portion of a user and may include a body portion, arm portions, and a neck portion, the body portion including a front portion, a back portion, and chest wall portions, wherein, the front, back, and chest wall portions may be adapted to encircle the torso of a user and provide compressive pressure, the arm portions including sleeve portions and underarm portions wherein the sleeve and underarm portions may be adapted to encircle the arms of a user and provide compressive pressure. Using the article of apparel as or in a method of reducing lymphedema is encompassed.

A method for forming a durable spliced sheet by splicing a plurality of components. Each component has a splicing edge and a core. The method comprises the steps of applying an adhesive, including graphite or fiberglass fibers, to the splicing edge of each of the components, aligning the splicing edge of each of the components with a respective contiguous counterpart, such that nodes of the core of each of the components match nodes on the contiguous counterpart, fastening the nodes of each of the components to the nodes of the aligned contiguous counterpart component, applying a uniform compressive pressure along the splicing edge, and heating the plurality of components to cure the adhesive and form the durable spliced sheet.

Receipt of user input may be facilitated using a handheld computing platform with an integrated pressure sensor. Exemplary implementations may allow a user to simply squeeze the handheld computing platform in order to control one or more aspects of operation of the handheld computing platform. That is, instead of tapping a touch screen or pressing buttons, a user may merely need to apply compressive pressure to the handheld computing platform by applying opposing forces to opposing surfaces of the handheld computing platform. By way of non-limiting example, the one or more aspects of operation controlled by squeezing the handheld computing platform may include one or more of input of a value, selection from a menu, manipulation of a virtual object, entry of a password or a code, interaction with a fitness program, interaction with a rehabilitation and/or medical treatment program, interaction with a game, and/or other aspects of operation.

Devices and methods are disclosed for achieving hemostasis in solid visceral wounds. Such devices and methods are especially useful in the emergency, trauma surgery or military setting. In such cases, the patient may have received trauma to the abdominal viscera. The devices utilize flexible, variable depth transfixing bolts that penetrate the viscera. These bolts are pulled tight to bring the tissue into apposition and hold said tissue in apposition while the wound heals. These bolts, or soft tissue rivets, overcome the limitations of sutures that are currently used for the same purposes. The bolts come in a variety of lengths and diameters. Since the bolts are flexible, the curvature can be adjusted by the surgeon. The devices are flexible, bendable, and conformable in their wet or dry state. They can be used either straight or configured in a broad range of curvatures to suit the needs of various pathologies. The bolts include pressure plates that are capable of exerting compressive pressure over broad areas of visceral wounds without causing tearing of the friable parenchyma. The bolts may be placed and removed by open surgery or laparoscopic access. The bolts can be placed into tissue where both sides of the bolt are exposed, or the bolts can be placed blindly into tissue where the bolt does not protrude out of the tissue at its distal end.

The invention relates to a propped, fractured, subterranean field with (a) a first proppant and (b) a second proppant that exhibits a relatively higher average crush strength and/or an ability to form a particle to particle bonded structure than the first proppant. Preferably, the first proppant is uncoated sand and the second proppant is resin-coated sand. The proppants can be deposited as a substantially homogeneous mixture or in layered structures (vertical or horizontal) within the fractured field. Deformation of the second proppant under closure stress acts to spread out the compression pressures in a mixture so as to reduce failure of the first proppant. Similar protective effects are found when the proppants are deposited in layers. When formed as vertical pillar structures, the second proppant structures can also act as in-situ screens that inhibit formation fines from migrating through the proppant pack to the detriment of field conductivity.

The present invention relates to a compression bandage for mammals, in particular for horses, comprising a tubular bandage (1) made of an elastic textile material, which can be opened and closed along a longitudinal slit (2) by means of fastening elements. To design this type of bandage in such a manner that it can be applied to the leg of a mammal using the easiest possible technique and that it can ensure an excellent fit even over an extended period of time so that the most uniformly constant and defined compressive pressure is exerted by the bandage on the leg of the mammal, the present invention proposes that the fastening elements comprise a zipper (3) which extends along the longitudinal slit (2), at last one fastener strap (4) which, when closed, straddles the longitudinal slit (2) in the transverse direction, and a hook fastener (5) which extends along the longitudinal slit (2).