148 results about "Ulna" patented technology

An elbow prosthesis which includes a humeral component having a rod extending along a longitudinal axis and this component further includes a generally cylindrical body having a first articulating surface about which an ulnar component is pivotally mounted so as to pivot about a longitudinal axis of the body. A spacing between a plane extending through the longitudinal axis of the body and the longitudinal of the rod of the humeral component is selected to define a desirable spacing therebetween depending upon a patient's morphology.

An ulnar prosthesis assembly comprising a head formed with a curved surface extending between opposed ends and a stem. One of the ends of the head has an attachment bore defined therein. The attachment bore generally has a first diameter and includes an attachment groove thereabout with a second diameter greater than the first diameter to define at least one attachment shoulder. The stem has a stem body extending between a proximal end configured for implantation in a target bone and a distal end configured to be received in the attachment bore. The distal end has a locking flange extending radially therefrom. The locking flange defines a locking shoulder having a diameter greater than the first diameter such that upon receipt in the attachment bore, the locking shoulder engages the attachment shoulder.

An ulnar prosthesis assembly comprising a head formed with a curved surface extending between opposed ends and a stem. One of the ends of the head has an attachment bore defined therein. The attachment bore generally has a first diameter and includes an attachment groove thereabout with a second diameter greater than the first diameter to define at least one attachment shoulder. The stem has a stem body extending between a proximal end configured for implantation in a target bone and a distal end configured to be received in the attachment bore. The distal end has a locking flange extending radially therefrom. The locking flange defines a locking shoulder having a diameter greater than the first diameter such that upon receipt in the attachment bore, the locking shoulder engages the attachment shoulder.

An exercise machine ergonomic handle system for providing hand-holds for the performance of exercises with reduced flexion and / or extension of the hand and wrist and reduced ulnar and / or radial deviation so as to reduce injury and allow application of full strength to the exercise machine. The exercise machine ergonomic handle system generally includes a longitudinally extending frame, a carriage that moves upon a first longitudinal portion of the frame, and at least one pair of ergonomic handles positioned on a second longitudinal portion of the frame. The ergonomic handles rotate about an axis to prevent flexion and / or extension, and can be positioned at a width and / or angle that reduces ulnar and / or radial deviation.

The present invention provides a design method and apparatus for a handle providing a shape and structure that fills various regions of the hand except a region in an area over the underlying carpal tunnel. Such design method and apparatus provides for various handles for use by a hand. In particular, the apparatus includes a generally Y-shaped configuration, such as for a forceps / tweezers handle with a working end. The handle can include a radial section, an ulnar section and middle section. The handle also can have a radial arm, an ulnar arm and distal leg, with an ulnar end and a radial end for engaging a portion of the hand.

An apparatus for use with a hand includes a handle body with an ulnar section for engaging the palmar arch of the hand, the ulnar section having a distal ulnar side for receiving the small finger of the hand and having a palmar ulnar side, the palmar ulnar side having a surface for engaging a portion of the palmar surface of the hand so as to position the end of the small finger in substantial alignment with the ends of the middle finger and the ring finger and to position the handle within the hand without engaging a surface of the hand located over the carpal tunnel; and a compressible and resilient proximal-side surface supported by a supporting mechanism so as to maintain a proximal-side desirable shape different from a shape of the proximal side of the handle body.

The device is a thin, self-adhesive non-stretch splint, having the capability to flex. This device is intended for the treatment of repetitive stress injuries such as Carpal Tunnel Syndrome with elements that provide user adjustable limitation of movement within acceptable medical parameters. Carpal Tunnel Syndrome symptoms include pain and numbness in the thumb, index, and middle fingers, that are aggravated by compression of the median nerve. This device limits flexion, extension, ulnar and radial deviation movements of the wrist without compressing the median nerve The device limits movement by reducing skin elasticity on the surface skin above or below the wrist and up the forearm. The application provides biomechanical feedback to the wearer in the form of the tugging sensation on the skin around the perimeter of the device assisting the user in maintaining a more neutral wrist position without imposing wrist immobilization. The design elements allow the use of the device in such a manner that produces no additional pressure to the median nerve while in use. Furthermore the method of application provides a means for the user to regulate the amount of wrist movement to provide a greater comfort level while still limiting movement within medically proven parameters. The adhesive nature of the device eliminates the need for external straps that normally wrap completely around the forearm and hand to hold a splint in place. The application of the device limits movement by greatly reducing the ability of the skin to stretch by placing a self-adhesive non-stretch splint directly on the skin. The device, and how it is placed utilizes the wearers skin elasticity to provide biomechanical feedback to the user to promote better wrist posture.

A humeral component, forming a first articulating surface, and an ulnar component forming a second articulating surface adapted to be disposed around a part of the first articulating surface and to pivot about its longitudinal axis. This ulnar component is provided with structure for mounting a locking element which forms a third articulating surface extending the second and adapted likewise to be disposed around a part of the first surface. These mounting structure comprise guiding structures adapted to cooperate with complementary structure provided on the locking element in order to guide this element in translation with respect to the ulnar component, up to a position where blocking structure provided respectively on the locking element and on the ulnar component may be employed to immobilize this element on this component, these blocking structure being able to be employed only in this position.

An adjustable radial and ulnar vascular compression wristband assists in achieving partial or full occlusion of a blood vessel when applied to a patient's wrist during or following a medical procedure. At least two adjustably inflatable non-adjacent balloons on the wristband apply preferential compression to portions of the circumference of the wrist, including in particular those portions overlying the ulnar and radial arteries.

The present invention provides a design method and apparatus for a handle providing a shape and structure that fills various regions of the hand except a region in an area over the underlying carpal tunnel. Such design method and apparatus provides for various handles for use by a hand. In particular, the apparatus includes a generally Y-shaped configuration, such as for a forceps / tweezers handle with a working end. The handle can include a radial section an ulnar section and middle section. The handle also can have a radial arm, an ulnar arm and distal leg, with an ulnar end and a radial end for engaging a portion of the hand.

The invention provides an artificial elbow joint of the constrain type by which a joint part can be easily fabricated even in the course of a surgical operation for replacing the joint elbow and which is therefore effective in improving the safety of the operation and shortening the operation time. This artificial elbow joint as described above is composed of a humeral component involving a humeral stem, a shaft part and an anterior frange and an ulnar component involving an ulnar stem and a sleeve part. In this artificial elbow joint, the shaft part of the humeral component and the sleep part of the ulnar component join together in a revolvable manner. This artificial elbow joint is characterized in that the sleeve part has a sleeve opening, which is in the shape of a slit narrower than the outer diameter of the shaft part, and a flexible sleeve insert located in the inner face of the sleeve being in contact with the shaft part so that the sleeve part can undergo snap-in joint to the shaft part from the sleeve opening, while the angle of the opening center line of the sleeve opening is within a range of from 45 DEG to 90 DEG from the bottom of the main axis of the ulnar stem toward the inner direction of the elbow.

The invention discloses a humanoid robot system based on pneumatic muscle. The pneumatic muscle is used for simulating human muscle to drive motions of a shoulder joint, an elbow joint, a wrist joint,a waist joint, a hip joint, a knee joint and an ankle joint, and achieves the function of totally simulating human motions. The humanoid robot mainly consists of a fixed plate, a support piece, thighbone, fibula, feet, humerus, ulna and the pneumatic muscle. The humanoid shoulder joint, elbow joint, wrist joint, waist joint, hip joint, knee joint and ankle joint are respectively provided with three degrees of freedom. The system is driven by the pneumatic muscle, has the characteristics of compact structure, cleanness, explosion prevention, various functions and convenience for equivalent replacement of other demands, and can be used for exhibition, meeting, explosion removal and teaching demonstration.

The invention discloses a high-strength absorbable bone screw for internal fracture fixation. The bone screw is prepared from a degradable oriented polylactic acid sectional material, wherein the raw material of the oriented polylactic acid sectional material is L-polylactide having a specific rotation of negative155-negative 160 degrees; the sectional material is prepared from L-polylactide sequentially through blank preparing, oriented reinforcing and quenching, the blank preparing method is injection molding, the oriented reinforcing method is forging and pressing or extruding; and the sectional material is manufactured into the bone screw through a turning method, a carving method or a direct molding method. The bone screw has high strength, small attenuation rate of mechanical strength, ensures mechanical support in a bone healing stage and sufficient heating time for injured bones, has good biocompatibility, can be degraded and absorbed, can be used for reducing osteoporosis, and has a remarkable effect on fixing cancellous bone fracture. Under a special condition, the size of the bone screw can be adjusted according to the ankle osteotomy, ankle fracture degree and the growth plate characteristics of ulna.

The invention discloses an integrated fixing device for an olecranal fracture. The integrated fixing device comprises a banded knitted part and a rope bolt, wherein one end of the banded knitted part is connected with the tail end of the rope bolt; the other end of the banded knitted part is connected with a traction needle; the rope bolt is arranged in an olecranal fracture part for connection; and the banded knitted part is pressed on the olecranal fracture part and is tightened and fixed. The integrated fixing device has excellent biocompatibility; stimulation of implants to the implanted part is avoided; the difficulty that the implants need to be taken out by a secondary operation is avoided; the banded knitted part has relatively low elasticity modulus; blood supply of the fixed part is effectively protected when efficient fixation is provided; the postoperative pain of a patient is reduced; the recovery cycle of the patient is shortened; the banded knitted part provides an effective fixing mode for the slight comminuted olecranal fracture; and in addition, 'minimally invasive idea' is introduced, so that the problems that a previous surgery is complicated in operation, large in wound, serious in post operational pain and local stimulation and the like are solved.

A hemostatic device includes a flexible band allowed to be wrapped around a wrist in which a radial artery and an ulnar artery run, a hook and loop fastener that secures the band in a state of being wrapped around the wrist, an inflatable portion connected to the band and allowed to press a puncture site of the radial artery by being inflated in response to injection of a fluid, and a pressing member disposed at a different position from a position of the inflatable portion in a longitudinal direction of the band and allowed to press the ulnar artery. Further, a length of the pressing member along the longitudinal direction of the band is shorter than a width of the pressing member along a direction orthogonal to the longitudinal direction of the band.

A brace for relief of Carpal Tunnel Syndrome employs a strap element having a thumb aperture proximate a first end and a slot adjacent a peripheral edge of the strap element to receive a fifth finger. The strap element extends from the thumb aperture to be received in a central portion across a dorsal portion of a hand. The strap element then extends around the ulnar border and across the palm of the hand past the radial border with a tail portion of the strap element overlapping the central portion. A fastener moiety is provided on the tail portion of the strap element and a mating moiety on an outer surface of the strap element to engages the fastener moiety. The strap element tensioned around the hand produces approximation of carpals and metacarpals in the hand.