15 results about "Joint capsule" patented technology

Systems and methods are provided for 3D in vivo ultrasound imaging of a tissue surface, such as a tissue surface located within a joint capsule, during an arthroscopic procedure. An in vivo ultrasound probe is provided having a rotatable distal region supporting an array of ultrasound transducers. An ultrasound array is controlled to collect image data at several elevations while rotating the distal region of the probe to acquire a local 3D image data set across a local 3D volume associated with a current probe pose. This process is repeated as the probe pose changes, resulting in a set of local 3D image datasets, each local 3D image dataset corresponding to a different probe pose. The local 3D image dataset is processed to segment a tissue surface profile and generate a corresponding set of surface tiles. The surface tiles are processed and combined to generate a synthetic 3D image, optionally based on input from one or more sensors.

This invention provides a biomimetic training model for temporomandibular arthroscopic disc reduction and suturing. The biomimetic training model includes: a skull model with several traction positioning components; a simulated articular disc; a simulated joint capsule including a superior and inferior joint capsule, which are respectively connected to the upper and lower surfaces of the simulated articular disc; the superior joint capsule has an upper opening, and the inferior joint capsule has a lower opening; a temporal bone connector connected to the upper opening and detachably connected to the temporal bone of the skull model; a mandibular bone connector connected to the lower opening and detachably connected to the mandible of the skull model; and several traction components, one end of which is connected to the simulated articular disc, and the other end is adapted to be detachably connected to the traction positioning components, thereby adapting the shape and position of the simulated articular disc by connecting the traction components to the traction positioning components.

A method for retracting a capsule of a joint includes forming a cut in the capsule to create a plurality of separated portions of the capsule. A first end of a first length of suture is passed through a first separated portion of the capsule and moved out of the joint. A first end of a second length of suture is passed through a second separated portion of the capsule and moved out of the joint. The first end and a second end of the first length of suture are pulled to retract the first separated portion of the capsule. The first end and a second end of the second length of suture are pulled to retract the second separated portion of the capsule. An arthroscopic procedure is performed in the joint, and the first length of suture and / or the second length of suture is used to close the capsule.

The application relates to the technical field of femoral head necrosis treatment, in particular to a bionic artificial balloon type half hip joint, which comprises a sleeve, a femoral neck, a fixing screw and a femoral neck limiting nut, the sleeve is fixed on a femur through the fixing screw, the femoral neck is slidingly connected in the sleeve, a balloon is fixed on the outer periphery of the top section of the femoral neck, the inside of the femoral neck is hollow, and a side hole is arranged at the top end of the femoral neck and communicates with the balloon, and the femoral neck limiting nut is used for being fixed in the sleeve to position the femoral neck. The balloon type femoral head is compared with the metal and ceramic femoral heads, the balloon type femoral head is more matched with the shape of the acetabulum in terms of shape, the elastic modulus of the balloon type femoral head is equivalent to that of the bone cartilage of the acetabulum, the balloon type femoral head is beneficial to cartilage nutrition, and the wear of the bone cartilage of the acetabulum is small; the balloon is in a shriveled state when no filler is filled in the balloon, the balloon can be placed in the femur along the sleeve, the joint capsule and the medullary cavity do not need to be opened, the trauma is small, the risk of subsequent infection and dislocation is small, meanwhile, the prosthesis wear can be replaced through the sleeve, and the replacement is convenient and fast and can be completed under local anesthesia.

The invention relates to the technical field of medical prostheses, in particular to a hip joint prosthesis with a bionic joint capsule and application of the hip joint prosthesis with the bionic joint capsule. A joint sliding capsule is additionally arranged between an acetabular cup and a femoral stem, so that the acetabular cup and the femoral stem can be stably and reliably connected, and ball socket stability is provided for initial postoperative recovery; meanwhile, mechanical support can be provided for tissue repair, and fusion of ligament and joint capsule soft tissue is promoted; the joint slide bag is of a porous structure, external tissue fluid flows in, is stored and is lubricated through the porous structure, and direct contact between friction pairs is reduced, so that the friction coefficient is reduced, and the wear resistance of the prosthesis is improved.

The application belongs to the technical field of biotechnology, and discloses application of a new sialyloligosaccharide and astaxanthin composition in preparation of a transdermal drug for treating osteoarthritis and a composite gel preparation. The composition provided by the application comprises new sialyloligosaccharide, astaxanthin, carbomer and alginate with a mass ratio of (1-10):(1-10):(0.01-0.5):(0.1-1). The composition can realize efficient enrichment of the new sialyloligosaccharide and astaxanthin in the joint cavity through a diffusion pathway of skin penetration, deep tissue diffusion, joint capsule penetration and joint cavity enrichment of the substance, and the new sialyloligosaccharide and astaxanthin have excellent synergistic effects, can efficiently relieve acute inflammatory symptoms of gouty osteoarthritis, block the disease progression and repair the joint tissue pathological changes, and have excellent application prospects in preparation of the transdermal drug for treating osteoarthritis.

The invention relates to the technical field of teaching instruments, and provides a joint training model to solve the problem that the palpation training effect of trainees is poor due to the fact that a current joint model cannot simulate the real pathological hand feeling. The device comprises a simulated humerus, a simulated ulna and radius and a simulated muscle connecting the simulated humerus and the simulated ulna and radius. One end of the simulated ulna and radius is provided with a glenoid fossa, and the glenoid fossa comprises a mounting seat connected with the end part of the simulated ulna and radius, a rough surface fossa layer arranged at one side of the mounting seat, a sliding rod arranged at one side of the rough surface fossa layer, a compression spring sleeving the sliding rod, and a sliding surface fossa layer arranged at one end of the sliding rod; one end of the simulated humerus is provided with a humerus head, the surface of the humerus head is a spherical surface, and the humerus head is coated with a joint capsule; through the adjustable joint fossa structure and the inflatable joint capsule, pathological signs of friction feeling of cartilage abrasion and stiffness feeling of joint capsule contracture are simulated respectively, and quantifiable and repeatable palpation training conditions are provided for students.

The invention relates to the technical field of robots, and discloses a bionic toe joint capsule structure for a robot foot and a preparation method thereof.The bionic toe joint capsule structure comprises a joint capsule body, the joint capsule body is made of a high-strength thermoplastic polyurethane material, and the whole joint capsule body is of a closed flexible capsule bag structure; one end of the joint capsule body is provided with a first connector matched with a mechanical phalanx of a robot foot, the other end of the joint capsule body is provided with a second connector matched with a mechanical metatarsal of the robot foot, and the first connector and the second connector are both communicated with the interior of the joint capsule body. According to the bionic toe joint capsule structure, an integrated 3D printing forming mode of regional hardness gradient design, a fiber reinforced layer structure and an internal lubricating system is adopted, so that the bionic toe joint capsule structure has the characteristics superior to the prior art in the aspects of mechanical property, movement stability, lubricating property and durability.

FIELD: traumatology; orthopedics.SUBSTANCE: used for arthroscopy of the hip joint to eliminate Cam or combined types of femoroacetabular impingement. A proximal anterolateral port is created to the peripheral portion of the hip joint, which is used as a viewing port at the beginning of the operation; 4 cm distal and 2 cm lateral to the intersection of the midline of the femur and the perpendicular drawn to it through the apex of the greater trochanter, an anterior port is created, which is used as an instrumental port at the beginning of the operation. The deformation zone is brought to the bone burr, changing the positions of flexion and extension, internal and external rotation of the lower limb, and until the appearance of spring resistance of the fibers of the lateral joint capsule and the ileofemoral ligament, resection of excess bone mass of the anterior surface of the proximal femur within the boundaries of the Cam-deformation is performed. The viewing and instrument ports are changed and the deep fibers of the proximal joint capsule and the ileofemoral ligament are released from the acetabulum. In the presence of Pincer deformity, soft tissues are removed to visualize excess bone mass within the boundaries of the Pincer deformity, and resection of excess bone mass of the anterolateral edge of the acetabulum within the boundaries of the Pincer deformity is performed until radiographic visualization of the absence of intersection of the anterior and posterior edges of the acetabulum. The viewing and instrument ports are replaced. An arthroscope is positioned on the outer edge of the joint capsule fibers, and bone resection of the posterolateral surface of the proximal femur is completed within the boundaries of the Cam deformity by inserting a bone burr from the skin incision of the anterior port into the capsule opening of the proximal anterolateral port, preserving the fibers of the joint capsule and the ileofemoral ligament.EFFECT: method ensures correction of the proximal femur within the boundaries of the Cam-deformation while maintaining the integrity of the structures of the passive capsular-ligamentous stabilizers and eliminates the development of complications in the form of microinstability of the hip joint, anterior dislocation of the femoral head, heterotopic ossification due to maintaining the integrity of the structures of the passive capsular-ligamentous stabilizers and eliminating the development of microinstability of the hip joint, anterior dislocation of the femoral head and heterotopic ossification.1 cl, 1 ex

A double ball and socket joint is formed of a two-piece capsule. Each piece of the capsule carries a ball and extension combination that operates rotationally within a socket. The extensions exit the capsule through void spaces at both distal ends of the capsule. The two pieces of the capsule are preferably in snap-fit engagement. The result is that the double ball and socket joint of the present invention provides infinite combinations of rotation about five axes of rotation: a first and a second axis of rotation about the first ball, a third and a fourth axis of rotation about the second ball, and a fifth axis of rotation is provided when the two pieces of the capsule are rotated relative to one another.

The utility model relates to the technical field of medical treatment, and provides a balloon for treating a frozen shoulder by directionally expanding an articular cavity under ultrasound, which comprises a puncture guide needle, a first balloon main body and a second balloon main body, the first balloon and the second balloon are designed, the first balloon is used for expanding a thickened articular cavity, and the second balloon is used for expanding the articular cavity. The design and the size of the balloon are different from those of the first balloon, so that the balloon can be accurately matched with different parts, and effective dilation is achieved. In the aspect of design of the puncture guide needle, two needle stem design schemes are provided, the needle stem is made of a fiber soft lens material or provided with a movable joint to achieve a bending function, and the front end of the needle stem can be subjected to arc molding, so that the guide needle can enter an articular cavity conveniently, the risk of damage to surrounding tissues is greatly reduced, and treatment safety is guaranteed. According to the internal structural design of the guide needle, pipelines with different functions are arranged and comprise the two balloon inflation cavities with different lengths and the medicine injection cavity, all the pipelines are clear in division of labor, and inflation operation of the balloon and supply of medicine liquid are facilitated.

The utility model relates to the field of jaw joint treatment, in particular to a temporomandibular joint training teaching aid model which comprises a model body, a temporal bone mimicry part, a temporal bone mimicry part, a mandible mimicry part, a joint capsule module detachably mounted on the temporal bone mimicry part and used for simulating a mandible, and a joint capsule module detachably mounted on the mandible mimicry part and used for simulating the mandible. The mimicry mandible is rotatably connected with the joint capsule module through the rotating shaft, so that the mimicry mandible part can rotate relative to the joint capsule module. By arranging the mimic temporal bone part, the mimic mandibular bone part and the joint capsule module, all joints which may be involved in the original temporal-mandibular joint operation process are modularized, and a user can place all the joints on the model body according to own requirements. Meanwhile, the joint capsule module serving as a main object of operation training can be independently replaced after training is completed, other parts do not need to be replaced, and the teaching cost is effectively reduced.

The invention relates to the technical field of ultrasonic devices, in particular to an ultrasonic intervention guiding device which comprises a handle, a support is detachably mounted at the upper end of the handle, a guiding tube used for ultrasonic intervention guiding is fixedly connected to the upper end of the support, and a plurality of joint rings are evenly arranged in the guiding tube in the axial direction of the guiding tube. A plurality of annularly arranged joint rings are arranged between every two adjacent joint rings, a movable device is arranged in the center pipe, and through a controllable liquid pipeline plugging structure formed by the on-off pipe, the sealing plug and the joint bags, any joint of the guide pipe can immediately complete plugging of a liquid flow channel after being powered on or adjusted by the shifting wheel; the blocked joint capsule rapidly loses the expansion capacity, so that a rigid joint is formed at the position, the current bending angle is locked, multi-section, segmented and independent position locking is achieved, an operator can stably keep the shape of the guide tube in a narrow or complex anatomical path without an auxiliary fixing device, and the operation efficiency and the path keeping capacity are remarkably improved.

The present application relates to the technical field of teaching apparatus, and provides a joint training model to solve the problem that current joint models cannot simulate real pathological feeling, resulting in poor palpation training effect of students. The present application comprises a simulated humerus, a simulated ulna and radius, and a simulated muscle connecting the simulated humerus and the simulated ulna and radius; one end of the simulated ulna and radius is provided with a joint socket, the joint socket comprises a mounting seat connected with the end of the simulated ulna and radius, a rough surface socket layer provided on one side of the mounting seat, a sliding rod provided on one side of the rough surface socket layer, a compression spring sleeved on the sliding rod, and a sliding surface socket layer provided on one end of the sliding rod; one end of the simulated humerus is provided with a humeral head, the surface of the humeral head is spherical, and the humeral head is covered with a joint capsule; through the adjustable joint socket structure and the inflatable joint capsule, the friction feeling of cartilage wear and the stiffness feeling of joint capsule contracture are simulated respectively, and the quantifiable and repeatable palpation training conditions are provided for students.

A reversible orthosis includes dynamic tensioning elements, recreating and / or improving on the load sharing typically provided by soft tissue, such as ligaments, tendons, muscle and a capsule at a joint of a patient or wearer, thereby providing support and preventing further injury from joint instability and / or joint laxity. The reversible orthosis can support a glenohumeral joint of the shoulder brace and can prevent additional injury from various shoulder instabilities, for example, anterior, inferior, posterior and / or multidirectional instabilities. This can be accomplished by dynamically tensioning posterior, anterior and / or hammock straps of the orthosis. The straps can be primarily adjustable only in tension forces stored there within, rather in orientation relative to the shoulder. This can simplify setup and use, and can ensure the orthosis has a low profile. Related methods of use also are provided.