39 results about "Joint capsule" patented technology

A minimally invasive method of correcting a bunion includes performing an osteotomy to divide the metatarsal into first and second portions, creating a pocket in the first portion implanting a nail in the pocket, securing a suture to the joint capsule, tensioning the suture to align the great toe with the metatarsal, attaching the suture to the nail, and fastening the nail to the second portion. The nail includes an anchor portion for anchoring in the first portion, a head for attachment to a second portion, a passage for attachment of the suture, a first aperture for a fastener to attach the head with the first portion, and a second aperture for a fastener to attach the head with the second portion.

Disclosed is an innovation in the manner of surgically exposing the knee during total or partial knee arthroplasty, because currently, and as it has always been the case, the conventional surgical approach for the knee used the anterior route but also the medial route, where it was necessary to sever the whole tissue attachment of the inner bone border thereof, said tissue attachment comprising the capsule (envelope), the medial patellofemoral ligament and the tendon of the vastus medialis oblique (muscle) of the quadriceps. The present invention relates in particular to operating equipment intended to facilitate and / or implement a new and innovative surgical approach.

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.

The full-automatic meniscus cutter comprises a plasma cutter head, a connecting rod, a rotating shaft, a joint insertion rod, a supporting frame and a control system, the plasma cutter head is connected to the front end of the connecting rod and used for cutting lesion tissue of a meniscus, and the rear end of the connecting rod is connected with the rotating shaft; the rotating shaft is rotationally connected to the rear end of the joint insertion rod and is perpendicular to the joint insertion rod, the front end of the joint insertion rod is used for being inserted into a joint cavity and abutting against a joint capsule, a rotating driver used for driving the rotating shaft to rotate is arranged on the supporting frame, and the connecting rod is of a telescopic rod structure and is provided with a telescopic driver used for driving the connecting rod to stretch out and draw back. The control system is electrically connected with the rotating driver and the telescopic driver and used for commanding and controlling the rotating shaft to rotate and commanding and controlling the plasma tool bit to reciprocate front and back. The meniscus cutter has the advantages that automatic cutting and precise cutting are achieved, operation time is shortened, damage to surrounding healthy tissue is reduced, and monitoring and precise control are achieved.

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.

Devices and methods are disclosed herein for accessing the hip joint. A first device can be securely attached to the capsule of a joint. The first device can tent the capsule to increase the volume of the peripheral compartment. A second device can be biased against the first device to pierce the tented capsule and create a portal. Devices and methods are also disclosed herein for distending the capsule of a joint. A distention device may access a portal established within the capsule. The distention device can expand the capsule by applying an expansive force within the peripheral compartment. The distention device can maintain distention of the peripheral compartment while other devices access the joint.

The invention relates to the field of auxiliary instruments for wrist arthroscopic surgery, and particularly discloses a wrist arthroscopic channel stabilizing device which comprises a groove type sleeve made of a disposable vein infusion tube, the tube wall of the groove type sleeve is cut off in the longitudinal direction to form an open groove, the two ends of the groove type sleeve are cut to be smooth, and the length of the groove type sleeve is suitable for a wrist arthroscopic surgery approach; by establishing the stable channel, the instrument can freely slide along the groove wall of the stable channel, repeated friction and injury of the surgical instrument to subcutaneous tissues around an approach, such as joint capsules, blood vessels, nerves and tendons, are effectively avoided, surgical wounds are remarkably reduced, multiple times of access of the same channel can be ensured, no tissue implication is caused, and the surgical efficiency is improved. By the adoption of the structure, intra-articular operation can be rapidly transferred to be conducted outside the joint, the annular design reduces compression damage to channel tissue, it is guaranteed that the sleeve always exists, and the open type notch design enables an operation instrument to obtain a free operation space.

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 invention discloses medical rheumatism immunology department detection auxiliary equipment and a use method thereof, relates to the technical field of medical auxiliary equipment, and aims to solve the technical problems that after legs are fixed, joint bending adjustment is difficult, and joint bursting of a special patient is difficult to perceive, the medical rheumatism immunology department detection auxiliary equipment comprises a fixing mechanism, an adjusting assembly, an irradiation assembly and an extrusion assembly, through a thread driving mechanism of the adjusting assembly, the distance between the two supporting frames can be flexibly adjusted and controlled, effective adjustment of the leg bending angle is achieved, rubber rods can be synchronously extruded, semi-wrapping type supporting is formed on joints, thighs and shanks after the rubber rods are bent, in addition, the irradiation assembly can accurately adjust the position of the positioning frame, and the positioning accuracy is improved. The irradiation lamp is used for projecting light to the joint surface, and medical staff are assisted in accurately detecting the position, size and boundary of the joint capsule by observing the reflection, transmission and other conditions of the light on the joint surface, so that the position of the joint capsule of a special patient is accurately confirmed, and powerful support is provided for detection work of the rheumatism immunology department.

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 invention belongs to the technical field of biology, and discloses application of a composition of neoagaro-oligosaccharide and astaxanthin in preparation of a transdermal drug for treating osteoarthritis and a composite gel preparation. The composition provided by the invention comprises neoagaro-oligosaccharide, astaxanthin, carbomer and alginate in a mass ratio of (1-10): (1-10): (0.01-0.5): (0.1-1), and can realize efficient enrichment of neoagaro-oligosaccharide and astaxanthin in an articular cavity through a substance diffusion path of skin penetration, deep tissue diffusion, joint capsule permeation and articular cavity enrichment, so that the content of neoagaro-oligosaccharide and astaxanthin in the articular cavity is improved, and the content of astaxanthin in the articular cavity is reduced. The new agar oligosaccharide and the astaxanthin have an excellent synergistic effect, so that the acute inflammation symptom of gouty osteoarthritis can be efficiently relieved, the progress of the disease course is blocked, the pathological change of joint tissue is repaired, and the new agar oligosaccharide and the astaxanthin have an excellent application prospect in preparation of the transdermal medicine for treating osteoarthritis.

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.

A device for palpating and penetrating a joint capsule of a subject includes a shaft having a distal tip configured for palpating the joint capsule of the subject; a needle disposed within the shaft and configured to penetrate the joint capsule of the subject; and a handle coupled to the shaft and comprising a slider configured to translate the needle between a retracted state in which a distal end of the needle is retracted within the shaft and a fully deployed state in which the distal end of the needle fully extends from the distal tip of the shaft.

The invention discloses an orthopedic postoperative traction rehabilitation nursing device which comprises a right-angle frame, a leg supporting frame, a pushing device, a foot supporting device, a swinging device, a balancing weight and a traction overload protection device, the leg supporting frame is rotatably arranged on the right-angle frame, and a leg bandage is arranged on the leg supporting frame; the pushing device is arranged below the leg supporting frame, and the pushing end of the pushing device is pivotally connected with the bottom of the leg supporting frame; the foot supporting device is arranged on the leg supporting frame in a sliding mode and abuts against the pressure sensor through pulling of the balancing weight, the driving end of the swinging device is connected with the rotating end of the leg supporting frame, and the swinging end of the swinging device is connected with the rotating plate; the traction overload protection device is arranged under the balancing weight and electrically connected with the pressure sensor through the controller. Postoperative detumescence can be accelerated, foot joint capsule adhesion and muscle disuse atrophy can be avoided, and the risk of joint fibrosis is reduced.

1. The name of this design product: Joint Capsule. 2. Purpose of this design product: This design product is used for pest control and capture. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: use the status reference diagram. 5. The design for which protection is sought includes color.

The invention discloses a degradable bone and ligament composite repair guide device, which is implanted in a bone defect part or a ligament repair area needing mechanical support and tissue regeneration guide of a human body, and comprises a bone end, a transition area and a ligament end, wherein the bone end is implanted into the end part of a long bone of a human body or the surface of an irregular bone and covers a metaphyseal cancellous bone area around a ligament attachment point, and the bone end is made of a porous titanium alloy material; the ligament end covers the ligament fracture part, and the ligament end is a collagen nanofiber membrane; the transition area is located between the bone end and the ligament end and covers the junction area of the bone and the ligament and the joint capsule attachment point. The three-section type structural design of the bone end, the transition area and the ligament end is adopted, bone tissue, a bone and ligament junction area and ligament tissue are repaired and guided, and integrated synergistic repair of the bone and the ligament is achieved.

Method for producing a defined bone fracture with accompanying soft tissue injuries in a preparation (106) comprising bone and soft tissue mantle, where the term soft tissue mantle is understood to mean all the body's own tissue surrounding the bone of a specimen (106), including muscles, ligaments, tendons, joint capsules, nerves, skin and vessels, wherein a device (100), (200) is used to carry out the method, which i. at least one guide column (118), (218), ii. at one end of the guide column (118), (218) a base plate (101), (201), iii. a crossbeam (109), (209) with stamp (111), (211), iv. at least one means (110), (210) for adjusting the damping upon impact of a defined mass, v. at least one clamping plate (107), (207) for fixing the specimen, vi. a mass (112), (212) and, if necessary, additional weight (113), (213) for setting the defined mass, vii. at least one further cross member (115), (215) with at least one releasable holding mechanism (114), (214) for positioning the defined mass and means for fixing the preparation (102), wherein shock absorbers are used as means for adjusting the damping upon impact, characterized in that a defined force impulse is exerted on a fixed preparation (106) and the change in the length of the preparation (106) along the force vector is limited to a maximum of 80 mm by setting a defined compression and a defined damping by means of shock absorbers, wherein a) the defined bone fracture is a distal radius fracture, b) a preparation (106) comprising or consisting of hand and forearm is selected, c) a defined mass of 16.6 to 23.1 kg is set, d) the preparation (106) is aligned in a defined geometry with respect to the direction from which the defined mass impacts the preparation (106) when the holding mechanism (114), (214) is triggered, by means of means for fixing the preparation (102), e) the defined speed is set to 76 to 110 cm by means of the fall height of the defined mass, f) the defined compression is set to 20 to 36 mm with at least one shock absorber, g) the defined damping is set as the damped part of the defined compression to 5 to 17 mm, h) the holding mechanism (114), (214) is triggered, i) the preparation (106) is removed from the device (100), (200).

The utility model relates to a joint capsule distraction device for elbow arthroscopic surgery, which belongs to the field of joint capsule distraction devices and comprises an intervention rod. The adjusting protection assembly is arranged on the inner side of the intervention rod and comprises a supporting plate arranged on the inner side of the intervention rod and a lead screw rotationally arranged on the inner side of the supporting plate; the mounting block is rotatably arranged on the right end surface of the screw rod; the protection block is arranged on the right side of the mounting block; the deformation piece is arranged on the inner side of the intervention rod, and the protection block is located on the inner side of the deformation piece. By arranging the adjusting protection assembly, after an intervention rod is placed into a joint capsule of a patient, a protection block is moved to the outer side of the intervention rod, so that the joint capsule cannot be hurt when the intervention rod expands the interior of the joint capsule through the protection block, meanwhile, the protection block can be better moved into the intervention rod through a deformation piece, and therefore the joint capsule can be more effectively protected. Therefore, injury to the patient when the intervention rod is pulled out of the joint capsule of the patient is avoided, and the practicability of the distraction device is improved.

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 invention relates to the technical field of oral disease animal model construction methods, in particular to a construction method of a traumatic temporomandibular ankylosis animal model. The construction method comprises the following steps: selecting an anterior auricular region on one side of an experimental subject, avoiding temporal superficial artery and vein, passively separating from front to back along a zygomatic arch to a joint capsule, exposing a mandibular condylar process neck and part of the zygomatic arch, and separating a condylar process after opening the joint capsule; the outer side attachment of the joint disc is separated through the joint gap, the peripheral attachment of the joint disc is cut off after the joint disc is exposed, and part or all of the joint disc is removed; the joint space is exposed through horizontal blunt separation of the joint capsule, part of fibrous cartilage on the condylar process head is removed, and fossa articular cartilage is damaged; after being sober, the animals eat soft food, and the traumatic temporomandibular joint ankylosis animal model is obtained. Modeling is carried out in the mode that the condyle process and the temporal bone glenoid fossa part fibrous cartilage and the articular disc are removed in a surgical operation mode, and the animal model established in a composite trauma mode fits the complex pathological environment of human diseases.

The utility model discloses a multifunctional arthroscope approach guide rod, which belongs to the technical field of arthroscope treatment equipment, and comprises a guide rod for exploring pathways, guiding and separating tissues for arthroscope surgical treatment, the approach guide rod is hollow, and the hollow part is used for placing a guide wire or a puncture needle which needs to be punctured into a hip joint cavity. An open sliding groove is formed in the hollow side wall of the approach guide rod from the head end to the tail end. When a medical worker performs arthroscopic surgical treatment on a patient suffering from hip joint diseases, soft tissue around a hip joint capsule is stripped by the aid of the head end of the approach guide rod, and the approach guide rod slides on the surface of the joint capsule to find a'soft point feeling 'to determine a joint gap after hip joint traction without assistance of X-ray fluoroscopy, so that the hip joint traction effect is improved. The approach guide rod is arranged at the tail end of the joint cavity so as to find the direction and path for correctly entering the joint cavity, medical staff can place and guide a puncture needle from the tail end of the approach guide rod after finding the correct path, the puncture needle is smoothly guided and punctured into the joint cavity, and approach establishment is accurate and efficient.

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 invention belongs to the technical field of physiotherapy rehabilitation devices, and relates to limb operation rehabilitation exercise equipment. Comprising a main machine, the main machine is slidably connected with a first connecting frame, the main machine is rotatably connected with a second connecting frame, the first connecting frame and the second connecting frame are rotatably connected, each of the first connecting frame and the second connecting frame is provided with a pair of fixing parts, each pair of fixing parts is provided with a mounting part, and the mounting parts are fixedly connected with the first connecting frame and the second connecting frame. A fixing belt is detachably connected to one side of the mounting part, a through groove allowing the corresponding fixing belt to penetrate through is formed in the fixing part, and the fixing belt is detachably connected with a moving belt. The electric rotating shaft drives the fixing belt to move synchronously through the moving belt, the purpose that the fixing belt is separated from the legs of the patient in the leg straightening process of the patient is achieved, the legs of the patient naturally straighten under the action of gravity, the straightening degree of the legs is ensured, and then adhesion and tension of joint capsules and ligaments are more effectively released.

The invention relates to the technical field of medical prostheses, and discloses a 3D printing personalized metatarsal bone prosthesis which comprises a prosthesis body, the prosthesis body obtains a personalized form based on patient CT data three-dimensional reconstruction, and the prosthesis body is made through 3D printing; the proximal end of the prosthesis body is provided with a connecting part for connecting bone tissues, and the surface of the connecting part is provided with a biological porous structure; the far end of the prosthesis body is provided with an articular surface, the articular surface is subjected to mirror polishing treatment, and suture holes are reserved in the far end of the prosthesis body and used for suturing an articular capsule and an articular ligament. According to the invention, precise adaptation of metatarsal bone defects is realized; the metatarsal bone far-end osteotomy surface is located at the joint part, joint capsule and ligament are reconstructed through suture holes, the metatarsal bone near-end osteotomy surface is located on the bone end face, a biological porous structure is arranged on the surface of the connecting part, the joint is reconstructed, biological healing is achieved, the operation difficulty is lowered, the operation time is shortened, the metatarsal bone defect repairing treatment effect is improved, and the metatarsal bone defect repairing time is shortened. And the pain of the metatarsal bone defect patient is relieved.