49 results about "Humerus bone" patented technology

A humeral component of a shoulder prosthesis includes a stem configured for implantation within the humerus. A reverse articulating component is mounted to the stem by a connection mechanism. The reverse component defines a substantially concave bearing surface. The bearing surface is part of a bearing member that is engaged to a support member that is associated with the connection mechanism. A kit is provided which includes differently configured bearing members and support members to allow intraoperative selection and assembly of an optimum articulating component.

A shoulder prosthesis. The shoulder prosthesis includes a head having a cavity. The head further includes a first bearing surface configured to mate with a second bearing surface of a glenoid. The shoulder prosthesis also includes a stem having a recess defined therein, and the stem configured to be received by a humerus. The shoulder also includes a first connector having a proximal end and a distal end. The first connector also includes a threaded cavity and an outer wall. The outer wall engages the recess of the stem, and the threaded cavity opens at the proximal end of the first connector. A second connector having a threaded end sized and shaped to fit in the threaded cavity of the first connector is also included. The second connector also has a head connector end that is sized and shaped to fit within the cavity of the head. The outer wall of the first connector is sized and shaped to expand at the proximal end as the second connector is threaded into the threaded cavity.

A humeral prosthesis, for the articulation of a humerus in a scapula of a shoulder having a glenoid cavity, includes an articulation device able to be associated both with an articulation element mounted on the glenoid cavity, and also at the top of said humerus by an attachment element. The articulation device comprises a first element able to articulate with the articulation element and a second element associated with the attachment element, the first element and the second element being pivoted to each other around a pivoting axis to allow a free relative rotation thereof around the pivoting axis.

The invention provides an experimental platform for bionic force loading of shoulder joint in vitro and its function detection, including a bracket unit, a base unit, a scapula fixation and muscle loading unit, a humerus clamping and rotation measurement unit, a humerus motion guiding arc frame and a humeral head Displacement detection unit. The experimental platform can provide different shoulder joint specimens with fixed static space posture according to the experimental requirements, and cooperate with the fixture to perform static phase adjustment of three degrees of freedom of the glenohumeral joint and one degree of freedom of the scapula. The muscle loading unit is composed of multiple force-transmitting cables and corresponding pneumatic servo systems, which provide the bionic muscle force of each muscle group of the shoulder joint in vitro. Under the control of the computer, the bionic muscle force is applied to the shoulder joint specimen, which can realize the multi-degree-of-freedom movement of the shoulder joint, and at the same time detect the functional parameters of the shoulder joint. The biomechanical data measured by this experimental platform can be used as an important index for shoulder joint function evaluation.

A 3D reproducing method with multi-row for measuring the torsional angle of humerus head includes such steps as using the shoulder joint mode in volume reproducing technique to cut and separate scapula and obtain the reproduced 3D humerus image, drawing a circle to fit the joint surface of humerus head, drawing a line between dots A and B which are cross points between said circle and joint surface, drawing the midnormal line EF or said line AB to obtain the far-end defining line of said torsional angle, drawing a line CD between the most convex dots of internal and external upper condyles to obtain its near-end defining line, and measuring the included angle between lines EF and CD to obtain said torsional angle.

An impactor system is for impacting a base of a shoulder implant into a humerus. The system may include a housing having distal stabilizer configured to contact a proximal resected surface of the humerus. The distal stabilizer may define an open space. An impaction member may be slidably received within the housing. The impaction member may have a proximal surface and a distal connection mechanism adapted to connect to the base of the shoulder implant. The impaction member may be movable from a first proximal position in which the base of the shoulder implant, when connected to the impaction member, is positioned within the open space defined by the distal stabilizer, to a second distal position in which the base of the shoulder implant, when connected to the impaction member, is positioned at least partially distal to the open space defined by the distal stabilizer.

The invention discloses an adjustable shoulder abducting mat. The adjustable shoulder abducting mat comprises a body side vertical plate, an arm side oblique plate, an angle adjusting system, a horizontal plate and a fixing strap system, wherein the body side vertical plate is propped against the waist and belly on one side of the human body and cooperates with a human body waist and belly curve;the arm side oblique plate is propped against the forearm of the human body and cooperates with the human body forearm curve; the angle adjusting system is connected with the body side vertical plateand the arm side oblique plate and is used for adjusting the relative angle of the body side vertical plate and the arm side oblique plate; the fixing strap system is arranged bypass the shoulder, theneck, the waist and the belly of the human body; and a position adjacent to the top, of one side of the body side vertical plate is connected with a position adjacent to the top, of the arm side oblique plate through a ball joint. The adjustable shoulder abducting mat disclosed by the invention is light in weight, and comfortable to wear; the angle between parts can be conveniently adjusted to meet requirements of different patients in different rehabilitation stages; the adjustable shoulder abducting mat can assist early-stage brake and later stage rehabilitation of the injured shoulder; andthe application range of the adjustable shoulder abducting mat not only comprises illness in the category of sports medicine including rotator cuff damage, recurrent shoulder joint dislocation and the like, and the adjustable shoulder abducting mat is also benefit for illness in the category of wound orthopedics including proximal humerus fracture, glenoid fossa fracture and the like.

Disclosed herein is a humeral head trial, a system for humeral trialing, and a method for removing a humeral head trial from a humeral stem. The humeral head trial may include a first portion, a second portion, and a post extending from the second portion. The first portion may define a concave articular surface with a movable surface substantially flush with the concave articular surface. The post may define a first length in a first configuration and a second length in a second configuration. The first length may be greater than the second length. The post may change from the first configuration to the second configuration by moving the movable surface with respect to the concave articular surface.

The invention provides a mouth gag for shoulder joint humerus head. The mouth gag for the shoulder joint humerus head comprises a mouth gag body connected with a holder in a matched mode, and a cutting edge used for pre-reaming of the shoulder joint is arranged at the end, away from the holder, of the mouth gag body. The mouth gag has the advantages that the defect that near-end marrow reaming cannot reach an ideal position or is difficult to drive due to the fact that far-end marrow reaming instruments and near-end marrow reaming instruments are different is overcome, and it can be effectively guaranteed that the square file reaches expected positioning.

Disclosed herein is a humeral head and cup trials, a system for humeral trialing, and a method for removing a humeral head and cup trial from a humeral stem. The humeral trial may include a first portion, a second portion, and a post extending from the second portion. The first portion may define an articular surface. The post may define a first length in a first configuration and a second length in a second configuration. The first length may be greater than the second length. The post may change from the first configuration to the second configuration by moving the first portion with respect to the second portion.

A food skewer that provides a user with the experience of eating meat/food stuff off a bone that is not normally eaten off of a bone, includes a skewing piece and an end cap. The skewing piece is used to pierce and support the desired meat/food stuff, and also provides a portion for the user to grasp in order to maneuver the meat/food stuff. Meanwhile, the end cap secures the meat/food stuff to the skewing piece, protects the user from incurring injury from the skewing piece, and provides an additional portion for the user to grasp in order to maneuver the meat/food stuff. The skewing piece and the end cap may resemble one or more animal bones, such as a humerus bone, a rib bone, or a radius and ulna bone.

The invention relates to a humerus near-end special-shaped block. The humerus near-end special-shaped block specifically comprises a first fixing part and a second fixing part, wherein the inner surface of the first fixing part is an arc-shaped surface; and the first fixing part comprises two top locking screw holes located at the upper portion of the first fixing part. A first oblique insertion locking screw hole is positioned below the top locking screw hole; a second oblique insertion locking screw hole is positioned below the first oblique insertion locking screw hole; the two middle locking screw holes are positioned below the second oblique insertion locking screw holes; a third oblique insertion locking screw hole is positioned below the middle locking screw hole; the two lower locking screw holes are positioned below the third oblique insertion locking screw holes; the second fixing part comprises a fixing screw hole located at the surface of the second fixing part; and a connecting rod is connected with a round hole and located on the side surface of the second fixing part.

The invention discloses an exosome surface functionalized PEEK (Polyether-Ether-Ketone) material which is prepared by the following method: step 1, culturing mesenchymal stem cells which are taken from humerus and femur on both sides of a female SD (Sprague Dawley) rat; step 2, centrifugal separation; centrifugally separating the bone mesenchymal stem cells to prepare exosomes; step three, sulfonation: immersing the PEEK into a sulfuric acid solution to enable the PEEK to form a uniform porous structure; step 4, preparing SPEEK: carrying out hydro-thermal treatment on sulfonated PEEK to remove residual sulfuric acid so as to obtain SPEEK; 5, TA-SPEEK is prepared; reacting the SPEEK with a sample under a magnetic stirring condition to obtain TA-SPEEK; and step 6, synthesizing Exo-TA-SPEEK, namely dropping the exosome from the bone mesenchymal stem cells onto TA-SPEEK, so that the Exo-TA-SPEEK can be synthesized. According to the invention, bone formation can be mediated, immune response is controlled, and effective combination with a human body is realized.

The invention discloses a tibial/humeral intramedullary nail and a tibial group and a humeral group using the tibial/humeral intramedullary nail. The tibial/humeral intramedullary nail comprises a main nail, a core nail and a cock. The main nail comprises a main nail tail and a hollowed cavity. The hollowed cavity comprises a large-diameter cavity which is arranged in a main nail head. The main nail tail comprises at least one split groove. A core nail head is accommodated within the large-diameter cavity and the core nail head is greater than a small-diameter cavity in diameter. An outer screw thread is arranged at the tail of a core nail body. The cock comprises an inner screw thread. The contour line of a cross section of the cock, along an axial direction of the main nail, is represented as an isosceles triangle. The inner and outer screw threads are coupled, so that the cock is arranged at the tail of the core nail body. The tibial/humeral intramedullary nail, which is provided with the core nail and the cock, has a self-locking function, so that a fixed screw is prevented, and subsequently, operations are simplified and facilitated and using cost is reduced.

The invention relates to an implantable prosthesis, and particularly relates to a customized medical nano renewable porous titanium alloy 3D printed shoulder joint humeral head. According to the method, CT tomographic image data of humerus is obtained by CT scanning on shoulder joint of a patient, and then a three-dimensional model meeting the shoulder joint humerus is established according to the CT tomographic image data. The humerus is printed layer by layer with mixture of Ti powder, Mg, Si, Ca, Cu, Ag, Ni and Mo as a matrix material for the humerus. Afterwards, electron beam irradiation treatment and nitridation treatment are carried out, and a strontium-loaded micro-nano coating is added to finally obtain the finished product. Compared with titanium alloy humerus or magnesium alloy humerus manufactured by traditional methods, the humerus printed through the method of the present invention has better strength, corrosion resistance and biocompatibility, facilitates combination with bone tissue, shortens healing time and reduces surgical risks.

The invention provides a humerus prosthesis. The humerus prosthesis comprises a main body structure and a cylindrical structure, the cylindrical structure is connected with the end of the main body structure, the cylindrical structure is made of a shape memory alloy, the cylindrical structure has an expansion state and a first natural state, the radial size of the cylindrical structure in the expansion state is larger than that of the cylindrical structure in the first natural state, and the cylindrical structure is used for being arranged at the residual end of the humerus in a sleeving mode.By the adoption of the scheme, when the humerus prosthesis is implanted, the cylindrical structure is arranged at the residual end of the humerus in a sleeving mode, so that the cylindrical structureand the humerus are connected in a sleeving mode, compared with an existing mode that a part of the humerus body is inserted into a medullary cavity of the residual end, connection is more stable, and the prosthesis can still be reliably connected after being used for a long time. Moreover, the cylindrical structure is made of the shape memory alloy, and the cylindrical structure can be set to bein an expansion state before connection, so that the cylindrical structure can be conveniently arranged on the residual end in a sleeving manner, then the cylindrical structure is restored to the first natural state, and reliable connection with the residual end is facilitated.

The invention discloses a compliant shoulder rehabilitation exoskeleton. The compliant shoulder rehabilitation exoskeleton can also be used for independent acromioclavicular and scapular rehabilitation on the basis of shoulder rehabilitation. The compliant shoulder rehabilitation exoskeleton comprises a base, a shoulder self-alignment mechanism, a shoulder rehabilitation mechanism and a connectingpiece; the shoulder rehabilitation mechanism can achieve equivalent training of shoulder abduction/adduction, forward extension/backward swing and inward rotation/outward rotation. The self-alignmentmechanism guarantees that the rotating center of the shoulder rehabilitation mechanism is aligned with the rotating center of the humerus of the human body in the rehabilitation process, so that discomfort or secondary injury caused by extra force and torque is avoided; meanwhile, the self-alignment mechanism can be switched into a shoulder girdle rehabilitation mechanism to drive a shoulder girdle to do forward stretching/backward and upward lifting/downward pressing exercises, and therefore, exercise forms are increased, and the rehabilitation effect is improved.

According to one aspect of the disclosure, a glenoid implant for replacing a native glenoid includes an articulating surface configured to articulate with respect to a humeral head. A bone-facing surface may be opposite the articulating surface, the bone-facing surface having a first area configured to contact a paleoglenoid of the native glenoid. An augment portion may be coupled to the bone-facing surface, the augment portion being configured to contact a neoglenoid of the native glenoid. The augment portion may be transitionable between a first configuration in which the augment portion has a first convexity and a second configuration in which the augment portion has a second convexity different than the first convexity.

The invention discloses a motion capture system based on real bird flight and a control method thereof, and belongs to the technical field of motion capture. The motion capture system includes a bird to be observed, a head sensor, a first humerus sensor, a second humerus sensor, a first ulna and radius sensor, a second ulna and radius sensor, a first metacarpal bone sensor, a second metacarpal bone sensor, a tail bone sensor, communication equipment and data receiving software of a ground base station. The head sensor, the first humerus sensor, the second humerus sensor, the first ulna and radius sensor, the second ulna and radius sensor, the first metacarpal bone sensor, the second metacarpal bone sensor, the tail bone sensor and a main development board are worn on a real bird body, and after a power supply is switched on, communication equipment and equipment of a ground base station are paired; and then the sensors on all bone positions are initialized, SPI, I2C and wireless communication are checked, the birds are released, and finally the flight attitudes of the birds can be observed through coupling parameters of a ground base station.