36results about "Leg lengthening pieces" patented technology

Prosthetic liner formed of a molded silicone elastomer material including an inner wall, a circular outer wall having radii of curvature centered along a first longitudinal axis of external symmetry extending longitudinally centrally within the liner, the inner wall including a circular curved inside anterior wall portion extending along a liner length and having first radii of curvature centered on a second longitudinal axis of anterior curvature extending longitudinally along the liner length and a circular curved inside posterior wall portion having a second radii of curvature centered on a third longitudinal axis of posterior curvature extending along said liner length. The first, second and third longitudinal axes lie in a common longitudinally and transversely extending plane bisecting the anterior and posterior wall portions, and the second and third axes are spaced apart a predetermined offset distance on opposed sides of the first axis to thereby define an anterior wall portion that is thicker along the liner length than the posterior portion.

Polymers are disclosed that are chemically modified to retard bacterial growth. Such modified polymers (e.g. ePTFE and polypropylene) are produced by first creating acid groups on the polymer surface through reactions with an anhydride. The acid groups are then linked to polyethylene glycol (PEG) through esterification or other reactions such as amidation. Preferably, at least two different molecular weight PEG species are employed. The antimicrobial surface is completed by linking antibiotics (e.g. β-lactam antibiotics) to the PEG extensions. One preferred embodiment of such a modified polymer is produced using ePTFE, maleic anhydride (MA), and penicillin (PEN) to yield PEN-PEG-MA-ePTFE, which inhibits gram-positive bacteria. The PEG spacer is critical for PEN function in this context, since PEN-ePTFE is ineffective against bacterial growth. Another preferred embodiment incorporates ampicillin (AMP) and a heterobifunctional PEG, HOOC—(CH2—CH2—O)n—NH2, to yield AMP-PEG-MA-ePTFE. This latter example inhibits both gram-negative and gram-positive bacteria.

Decellularized vascular prostheses that are resistant to thrombus occlusion and have a low level of immunogenicity and methods of making same are disclosed. The prostheses have high mechanical strength, resist aneurysm, rupture, and allow for secure surgical sutures while maintaining structural integrity. The vascular prostheses provided are blood vessels, valves or portions of vessels containing valves. There is also a method useful for coating synthetic vascular stents.

An ambulation assistance device is provided with a leg support that releasably secures to an individual's leg and supports the leg in a positively flexed position. An elongated pylon extends downwardly from the leg support and may be hinged at the point of connection to simulate the mechanics of the individual's knee during ambulation. A resilient rearward brace may be used to bias the pylon toward a standing position. A forward brace may be provided to limit over extension of the pylon. A foot member may be pivotably coupled with the distal end of the pylon to simulate the mechanics of the individual's ankle during ambulation. A resilient brace may bias the foot member toward a standing position.

A prosthetic limb has an outer surface that is a mirror image of an intact limb. The intact limb is scanned and the surface data is manipulated to create a virtual mirror image. The end of the amputated limb is also scanned to obtain socket data. A virtual limb is designed using a computer program based upon the mirror image and end of the amputated limb data. The computer program is also used to design a removable fairing that provides color and texture to the prosthetic limb.

A hands-free crutch assembly allows a user's foot to float suspended over an artificial foot, while transferring at least a portion of the walking load to the upper leg and permitting more natural knee flexion and extension while walking.

The present invention provides improved pedorthic systems for patients having partial foot amputations or foot neuropathies. Custom-molded, custom-made pedorthics with leather linings and molded stiffeners are disclosed, along with methods of manufacture. Custom-molded, custom-made pedorthics and ankle-foot orthoses having solid, molded fillers to replace the volume of missing foot portions are also provided, along with methods of manufacture.

An ankle splint product includes an ankle splint for being custom-formed to the shape of an ankle while flexible and upon hardening providing a rigid, supporting custom fit. The ankle splint product includes an outer container formed of moisture-impervious material, and first and second flexible ankle splint segments positioned in the container in substantially moisture-free conditions and sealed therein against entry of moisture until use. Each of the first and second ankle splint segments includes an elongate substrate and a reactive system impregnated into or coated onto the substrate. The system remains stable when maintained in substantially moisture-free conditions and hardens upon exposure to moisture to form a rigid, self supporting structure. An elongate, flexible protective pad is positioned on one side of the substrate along its length to provide a cushioning barrier between the substrate and the skin of a patient when the ankle splint is in use. An elongate outer cover covers the substrate on the side opposite the protective pad. A flexible cushion insert has a first major surface overlying the protective pad and an opposing second major surface adapted for residing adjacent an ankle bone of the patient. The cushion insert cooperates with the protective pad to further protect and cushion the ankle of the patient when the ankle splint is in use.

A method of differentially tuning a lower limb muscle in a human in need thereof is provided. The method includes placement of at least two calibrated, differential disturbances or protuberances under the human's feet thereby tuning a lower limb muscle.

A prosthetic limb has an outer surface that is a mirror image of an intact limb. The intact limb is scanned and the surface data is manipulated to create a virtual mirror image. The end of the amputated limb is also scanned to obtain socket data. A virtual limb is designed using a computer program based upon the mirror image and end of the amputated limb data. The computer program is also used to design a removable fairing that provides color and texture to the prosthetic limb.

The invention discloses an implementation method for identifying motion models based on cerebral-cortex hemoglobin information. A testee self-controls the starting and stopping time under four motion models; as for the change rate of cerebral-cortex hemoglobin concentration, the statistical analysis technique is adopted to analyze the statistical difference between oxyhaemoglobin and deoxyhemoglobin in various motion related areas of the cerebral cortex under different motion models, and based on the statistical characteristics, two relative motion trends of getting-up and sitting-down, as well as stair ascending and descending, are distinguished; and on this basis, the difference between oxyhaemoglobin and deoxyhemoglobin in various motion areas of the cerebral cortex is analyzed, together with the both-leg relative motion trends and the new statistical characteristics, the specific motion model is distinguished. The non-intrusive NIRS technology is adopted to record the cerebral-cortex hemoglobin concentration information of a human body without external stimulation or preliminary training, and restrictions on the test environment and the testee are less; the advantage of ideal time and space resolution is achieved; and the intelligence of walking aids is improved.

The invention relates to a mechanical human hip exoskeleton bearing device, comprising a left hip and a right hip which are structurally symmetrical. The left hip and the right hip are hinged to form an X-shaped structure via a hip center hinge pin, and two springs are respectively arranged at the top and the bottom of the X-shaped structure and between the left hip and the right hip. The other ends of the left hip and the right hip are respectively hinged with two leg and hip connecting parts, and the other ends of the two leg and hip connecting parts are respectively hinged with first connectors of two universal connecting parts. Second connectors of the two universal connecting parts are respectively connected with two tappet rods, the other ends of the two tappet rods are respectively sleeved in two sleeves, and two pressure springs for supporting the tappet rods are respectively arranged in the two sleeves. The other ends of the two sleeves are respectively hinged to the lower portions, close to the hips, of the two leg and hip connecting parts. Third connectors of the two universal connecting parts are respectively hinged with two leg adjusting parts, and the other ends of the two leg adjusting parts are fixedly connected with the upper ends of thigh parts of leg bearing devices. The mechanical human hip exoskeleton bearing device can transmit load on a back rack of a human exoskeleton carrying power assisting device to the leg bearing devices, and has high flexibility and a damping function.

The present invention makes available an optimal concentration of a hedgehog polypeptide for modulating growth and / or cartilage production by chondrocytes. The present invention allows for improvements in the culturing of chondrocytes to develop cartilaginous tissue ex vivo suitable for implantation to replace damaged or deteriorated cartilage in a patient.

The invention relates to a self-control intramedullary bone prolong device, which is formed by left fixing end (1), left connecting sheath (3), motor (4), motor support (5), copper sheath (60, guide key (7), outer cylinder (8), inner cylinder (9), central screw (10), and right fixing end (12). When in surgery, it can be planted into intramedullary to connect the bone with pin; when the motor rotates, the central screw rotates to axially move the inner cylinder to prolong the bone; when the motor stops, the device is stopped to fix the bone; when the motor rotates reversely, it can contract the bone. The invention has little hurt on human, while its length can be adjusted and the minimum drawn length in one time is 0.1mm.

The invention relates to a portable transportation tool. The portable transportation tool comprises walking mechanisms and a power mechanism and is composed of two lower limb pieces, a supporting piece and a leaning frame, mechanisms for binding a human body are arranged on the lower limb pieces, the lower limb pieces and the supporting piece are connected with the walking mechanisms, and at least one walking mechanism is connected with the power mechanism. The portable transportation tool has the advantages that the portable transportation tool can also be used as a seat, and especially after touchdown supporting mechanism are arranged on the lower limb pieces, gravity can be transmitted to the ground through the function of the leaning frame when the portable transportation tool is carried with a user.

An ambulatory device adapted for attachment to the thigh and shin of a human leg. The ambulatory device includes a leg splint having an elongated thigh support and an elongated shin support extending outwardly from the thigh support at an obtuse angle. The thigh support is constructed of a rigid material and includes a front section adapted to flatly abut against the front of the thigh and spaced apart side sections adapted to abut against opposite sides of the human thigh. A fastener secures the thigh support to the thigh against movement while, similarly, a second fastener secures the shin support to the shin of the leg. An elongated leg has one end attached to and extending perpendicularly outwardly from the shin support while a foot plate is attached to the other end of the leg.

Provided is a walking assist device including a main frame configured to be worn by a user, a power unit mounted on the main frame, a pair of power transmission members for transmitting assist force provided by the power unit to femoral parts of the user and a control unit for controlling an operation of the power unit, wherein the control unit comprises a differential angle computation unit for computing a differential angle between angular positions of the femoral parts of the user about respective hip joints of the user; a differential angle phase computation unit for computing a differential angle phase according to the differential angle; and an assist force computation unit for computing an assist force to be applied to the user according to the differential angle phase.

The present invention relates to an assembly to improve the stability of a user of the assembly, the assembly comprising: a brace for connecting to a lower leg portion, the brace comprising a stabiliser connecting portion; and a stabiliser for connecting to a shoe, the stabiliser comprising a brace connecting portion and an extension portion having a shoe connection portion configured in use to connect the extension portion to the shoe so that the extension portion extends laterally from the shoe to increase the effective surface area of the shoe sole at only a lateral side and to improve the stability of a user of the stabiliser, wherein the brace and the stabiliser are couplable together by the stabiliser connecting portion and the brace connecting portion so that, when said lower leg portion is connected to the brace and said shoe is connected to the stabiliser, an outward lean of said lower leg portion with respect to said shoe is limited to a predetermined angle, thereby providing a stabilising force to improve the stability of a user of the assembly, and wherein the stabiliser connecting portion and the brace connecting portion are uncoupled during normal locomotion of a wearer of the assembly, thereby providing unimpeded movement for normal locomotion.

A stilt assembly with interchangeable sections for varying the height thereof. A base assembly, middle assembly and foot support assembly include puzzle registries which allow for the stilt to be assembled with two assemblies (base and foot support assemblies only) for a shorter configuration, or with three assemblies (base, middle, and foot support assemblies) for a taller configuration. A foam spacer block provides height spacing in at least one assembly, and provide shock absorption and fail-safe height support, without failure-prone mechanical mechanisms.

Feet Extensions are improved version of custom height shoes for leg syndrome. Leg length discrepancy & Short stature. Feet Extensions are worn over the feet to add height in short leg. Unlike traditional shoes, feet extensions can be worn in shower, bathtub, and swimming pool. User can sleep in bed with feet extensions on their feet. Feet Extensions are made of silicone rubber in skin tone. Feet Extensions look more natural shape matching user feet.Feet Extensions—A device worn over the feet to add height in short leg or both legs comprising: one piece flexible silicone / rubber hollow inside; thick at the bottom; Generally human feet shaped with five open holes in front hollow inside; hole at top for feet to slide in; in human skin color tone; raised circular set of lines (2 small in front bottom part and 1 big bottom at heel) for traction for wet locations.Invention is used for: Feet Extensions are used to add height in short leg syndrome, Leg length discrepancy & Short stature.How it works: User slide feet inside Feet extension like traditional shoe. User wears them over the feet, adding height in one leg or both legs. User can wear traditional shoes over the feet extensions as feet extensions are very thin yet strong and flexible.

A stilt assembly with interchangeable sections for varying the height thereof. A base assembly, middle assembly and foot support assembly include puzzle registries which allow for the stilt to be assembled with two assemblies (base and foot support assemblies only) for a shorter configuration, or with three assemblies (base, middle, and foot support assemblies) for a taller configuration. A foam spacer block provides height spacing in at least one assembly, and provide shock absorption and fail-safe height support, without failure-prone mechanical mechanisms.

A diffusional drug delivery device is described which can provide for stability of the adhesive and system components, elimination of the initial burst of drug and hence irritation, and to provide for delayed onset of therapeutic effect along with delivery of a therapeutic agent at an optimum rate. The therapeutic agent in a first form which is suitable for storage, and the anhydrous activating means are inert when in an anhydrous environment. Moisture activates the system whereby the activating means provides an acidic or basic solution and the first form of the therapeutic agent is converted to a second form which is suitable for absorption through the skin or mucosa.

A method for generating a radial alignment guide for an eye includes collecting preoperative alignment data relative to a pupil from an eye that is not dilated. The method also includes locating a pupil center of the eye while dilated. The method further includes displaying the alignment data on an image of the dilated eye relative to the pupil center. In particular embodiments, software embodied in a computer-readable medium is executable by a processor to perform the steps of such a method.

A trouser garment is disclosed. The trouser garment may be a fishing wader. The garment includes a quick-release dropseat to enhance the ease of personal relief, such as a WC break, without completely removing the garment. The garment may include a trouser portion, a bib portion, and a suspension system. A posterior support strap is threaded through a guide, such as a loop, to aid in the mating two ends of a quick-release dropseat buckle. The posterior support strap is coupled to left and right shoulder straps to form the suspension system. The guide and one end of the dropseat buckle are positioned on a posterior surface of the garment. The garment may include cam buckles to enable the adjustment of the left and right shoulder straps and the height of the bib portion. The garment may be worn as a full bib or as a pant.

The invention relates to a portable transportation tool. The portable transportation tool comprises walking mechanisms and a power mechanism and is composed of two lower limb pieces, a supporting piece and a leaning frame, mechanisms for binding a human body are arranged on the lower limb pieces, the lower limb pieces and the supporting piece are connected with the walking mechanisms, and at least one walking mechanism is connected with the power mechanism. The portable transportation tool has the advantages that the portable transportation tool can also be used as a seat, and especially after touchdown supporting mechanism are arranged on the lower limb pieces, gravity can be transmitted to the ground through the function of the leaning frame when the portable transportation tool is carried with a user.

Methods for providing footwear configured to treat leg length discrepancy include manufacturing a plurality of footwear members. Each footwear member has a sole thickness, with sole thicknesses of the plurality of footwear members spanning a predetermined range of thicknesses. A corrective pair of footwear may be formed by selecting a left member having a first sole thickness and a right member having a second sole thickness, wherein the difference between the first and second sole thicknesses corresponds to an amount of leg length discrepancy to be corrected.